/* ═══════════════════════════════════════════════════════════════════
   LMS — Cloudflare-Inspired Design System
   Palette:
     Primary accent : #F6821F (Cloudflare orange)
     Dark surfaces  : #1D1D1F
     Border color   : #E2E2E7
     Body bg        : #F5F5F7
     Text primary   : #1D1D1F
     Text muted     : #6E6E80
   ═══════════════════════════════════════════════════════════════════ */

/* ── 0. Font import ─────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=IBM+Plex+Sans:wght@300;400;500;600;700&display=swap');

/* ── 1. CSS Custom Properties ───────────────────────────────────── */
:root {
    /* Brand */
    --cf-orange: #F6821F;
    --cf-orange-dark: #D97309;
    --cf-orange-light: #FFF7ED;
    --cf-orange-subtle: rgba(246, 130, 31, 0.08);

    /* Surfaces */
    --cf-bg: #F5F5F7;
    --cf-surface: #FFFFFF;
    --cf-surface-alt: #FAFAFA;

    /* Borders */
    --cf-border: #E2E2E7;
    --cf-border-strong: #C8C8D0;

    /* Text */
    --cf-text: #1D1D1F;
    --cf-text-muted: #6E6E80;
    --cf-text-faint: #AEAEB8;

    /* Semantic */
    --cf-success: #16A34A;
    --cf-success-bg: #F0FDF4;
    --cf-warning: #D97706;
    --cf-warning-bg: #FFFBEB;
    --cf-danger: #DC2626;
    --cf-danger-bg: #FEF2F2;
    --cf-info: #0284C7;
    --cf-info-bg: #F0F9FF;

    /* Dark nav */
    --cf-nav-bg: #1D1D1F;
    --cf-nav-border: #2D2D30;
    --cf-nav-text: rgba(255, 255, 255, 0.75);
    --cf-nav-text-hover: #FFFFFF;

    /* Spacing */
    --cf-radius: 10px;
    --cf-radius-sm: 4px;
    --cf-radius-lg: 8px;

    /* Shadows — intentionally minimal */
    --cf-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
    --cf-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);

    /* Bootstrap overrides */
    --bs-primary: #F6821F;
    --bs-primary-rgb: 246, 130, 31;
    --bs-body-bg: #F5F5F7;
    --bs-body-color: #1D1D1F;
    --bs-body-font-family: 'IBM Plex Sans', 'Segoe UI', system-ui, sans-serif;
    --bs-border-color: #E2E2E7;
    --bs-border-radius: 6px;
    --bs-card-bg: #FFFFFF;
    --bs-link-color: #F6821F;
    --bs-link-hover-color: #D97309;
}

/* ── 2. Base Reset ──────────────────────────────────────────────── */
*, *::before, *::after {
    box-sizing: border-box;
    outline: none;
}

body {
    font-family: var(--bs-body-font-family);
    background: var(--cf-bg);
    color: var(--cf-text);
    font-size: 14px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ── 3. Navbar ──────────────────────────────────────────────────── */
.cf-navbar {
    background: #FFFFFF;
    border-bottom: 1px solid var(--cf-border);
    height: 58px;
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1030;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.cf-navbar .container {
    display: flex;
    align-items: center;
    gap: 0;
    height: 100%;
}

.cf-navbar-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--cf-text) !important;
    text-decoration: none;
    font-weight: 700;
    font-size: 15px;
    letter-spacing: -0.01em;
    padding-right: 20px;
    border-right: 1px solid var(--cf-border);
    margin-right: 20px;
    height: 100%;
}

.cf-navbar-brand .brand-icon {
    width: 26px;
    height: 26px;
    background: var(--cf-orange);
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.cf-navbar-brand .brand-icon i {
    font-size: 13px;
    color: #fff;
}

.cf-nav-links {
    display: flex;
    align-items: center;
    gap: 2px;
    height: 100%;
    flex: 1;
}

.cf-nav-link {
    color: var(--cf-text-muted) !important;
    text-decoration: none;
    font-size: 13.5px;
    font-weight: 400;
    padding: 0 12px;
    height: 100%;
    display: flex;
    align-items: center;
    border-bottom: 2px solid transparent;
    transition: color 0.15s, border-color 0.15s;
    white-space: nowrap;
}

.cf-nav-link:hover {
    color: var(--cf-text) !important;
    border-bottom-color: var(--cf-border);
}

.cf-nav-link.active {
    color: var(--cf-text) !important;
    border-bottom-color: var(--cf-orange);
}

/* Nav search */
.cf-nav-search {
    position: relative;
    margin: 0 16px;
}

.cf-nav-search input {
    background: var(--cf-surface-alt);
    border: 1px solid var(--cf-border);
    color: var(--cf-text);
    border-radius: var(--cf-radius-sm);
    padding: 5px 10px 5px 32px;
    font-size: 13px;
    width: 200px;
    outline: none;
    transition: background 0.15s, border-color 0.15s, width 0.2s;
}

.cf-nav-search input::placeholder {
    color: var(--cf-text-muted);
}

.cf-nav-search input:focus {
    background: var(--cf-surface);
    border-color: var(--cf-orange);
    width: 240px;
}

.cf-nav-search .search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--cf-text-muted);
    font-size: 12px;
    pointer-events: none;
}

.cf-nav-search button {
    display: none;
}

/* Nav right side */
.cf-nav-right {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
}

.cf-nav-icon-btn {
    width: 32px;
    height: 32px;
    border-radius: var(--cf-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--cf-text-muted);
    text-decoration: none;
    font-size: 15px;
    position: relative;
    transition: background 0.15s, color 0.15s;
    border: none;
    background: transparent;
    cursor: pointer;
}

.cf-nav-icon-btn:hover {
    background: var(--cf-surface-alt);
    color: var(--cf-text);
}

.cf-role-badge {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.04em;
    padding: 2px 7px;
    border-radius: 99px;
    text-transform: uppercase;
    border: 1px solid;
}

.cf-role-badge.admin {
    color: #F87171;
    border-color: #F87171;
}

.cf-role-badge.instructor {
    color: var(--cf-orange);
    border-color: var(--cf-orange);
}

.cf-role-badge.student {
    color: #34D399;
    border-color: #34D399;
}

.cf-nav-divider {
    width: 1px;
    height: 20px;
    background: var(--cf-border);
    margin: 0 8px;
}

/* Avatar / user menu */
.cf-user-btn {
    display: flex;
    align-items: center;
    gap: 7px;
    background: transparent;
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius-sm);
    padding: 4px 10px 4px 6px;
    color: var(--cf-text);
    font-size: 13px;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}

.cf-user-btn:hover {
    background: var(--cf-surface-alt);
    border-color: var(--cf-border-strong);
    color: var(--cf-text);
}

.cf-user-avatar {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--cf-orange);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 700;
    color: #fff;
    overflow: hidden;
    flex-shrink: 0;
}

.cf-user-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Dropdown */
.cf-dropdown {
    position: fixed;
    background: var(--cf-surface);
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    box-shadow: var(--cf-shadow);
    min-width: 200px;
    z-index: 1040;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-4px);
    transition: opacity 0.15s, transform 0.15s;
    display: none;
}

.cf-dropdown.open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.cf-dropdown-item {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 8px 14px;
    font-size: 13.5px;
    color: var(--cf-text);
    text-decoration: none;
    transition: background 0.1s;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
}

.cf-dropdown-item:hover {
    background: var(--cf-bg);
    color: var(--cf-text);
}

.cf-dropdown-item.danger {
    color: var(--cf-danger);
}

.cf-dropdown-item.danger:hover {
    background: var(--cf-danger-bg);
}

.cf-dropdown-divider {
    height: 1px;
    background: var(--cf-border);
    margin: 4px 0;
}

.cf-dropdown-header {
    padding: 8px 14px 6px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--cf-text-faint);
}

.cf-user-wrapper {
    position: relative;
}

/* Action dropdown (for tables) */
.cf-action-menu {
    position: fixed;
    background: var(--cf-surface);
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    box-shadow: var(--cf-shadow);
    min-width: 180px;
    z-index: 1040;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-4px);
    transition: opacity 0.15s, transform 0.15s;
    display: none;
    padding: 4px 0;
}

.cf-action-menu.open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.cf-action-menu-item {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 8px 14px;
    font-size: 13.5px;
    color: var(--cf-text);
    text-decoration: none;
    transition: background 0.1s;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
    font-family: inherit;
}

.cf-action-menu-item:hover {
    background: var(--cf-bg);
    color: var(--cf-text);
}

.cf-action-menu-item.danger {
    color: var(--cf-danger);
}

.cf-action-menu-item.danger:hover {
    background: var(--cf-danger-bg);
}

.cf-action-menu-divider {
    height: 1px;
    background: var(--cf-border);
    margin: 4px 0;
}

/* Mobile toggle */
.cf-nav-toggle {
    display: none;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--cf-radius-sm);
    color: #fff;
    padding: 5px 8px;
    cursor: pointer;
    margin-left: 12px;
}

/* ── 4. Flash Messages ──────────────────────────────────────────── */
.cf-toast-container {
    position: fixed;
    top: 60px;
    right: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 0;
    pointer-events: none;
}

.cf-toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px 16px;
    border-radius: var(--cf-radius);
    font-size: 13px;
    font-weight: 500;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
    pointer-events: all;
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.2s ease, transform 0.2s ease;
    min-width: 240px;
    max-width: 360px;
    border: 1px solid;
}

.cf-toast.show {
    opacity: 1;
    transform: translateY(0);
}

.cf-toast.hide {
    opacity: 0;
    transform: translateY(8px);
}

.cf-toast-success {
    background: var(--cf-success-bg);
    border-color: #86EFAC;
    color: #15803D;
}

.cf-toast-warning {
    background: var(--cf-warning-bg);
    border-color: #FCD34D;
    color: #92400E;
}

.cf-toast-danger {
    background: var(--cf-danger-bg);
    border-color: #FCA5A5;
    color: #991B1B;
}

.cf-toast-info {
    background: var(--cf-info-bg);
    border-color: #7DD3FC;
    color: #0C4A6E;
}

.cf-toast-close {
    margin-left: auto;
    background: none;
    border: none;
    cursor: pointer;
    color: inherit;
    opacity: 0.5;
    font-size: 14px;
    padding: 0;
    line-height: 1;
    flex-shrink: 0;
}

.cf-toast-close:hover {
    opacity: 1;
}

/* Rich Toast (Bootstrap-like) */
.cf-rich-toast {
    background: var(--cf-surface);
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
    min-width: 320px;
    max-width: 400px;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 0.2s ease, transform 0.2s ease;
    overflow: visible;
    pointer-events: all;
    position: relative;
}

.cf-rich-toast.show {
    opacity: 1;
    transform: translateY(0);
}

.cf-rich-toast.hide {
    opacity: 0;
    transform: translateY(-8px);
}

/* Inner content wrapper to clip overflow */
.cf-rich-toast-header,
.cf-rich-toast-body,
.cf-rich-toast-actions {
    position: relative;
    z-index: 1;
}

/* Stacked toast effect - shows shadow layers behind like stacked paper */
.cf-rich-toast.cf-toast-stacked::before {
    content: '';
    position: absolute;
    left: -4px;
    right: 4px;
    top: 6px;
    height: 98%;
    background: #fafafa;
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    z-index: -1;
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.15);
    transform: rotate(-1.5deg);
}

.cf-rich-toast.cf-toast-stacked-multiple::after {
    content: '';
    position: absolute;
    left: 3px;
    right: -3px;
    top: 3px;
    height: 98%;
    background: #f6f6f6;
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    z-index: -2;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.12);
    transform: rotate(1.2deg);
}

.cf-toast-count-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    background: var(--cf-orange);
    color: #fff;
    border-radius: 9px;
    font-size: 10px;
    font-weight: 700;
    margin-left: 4px;
}

.cf-rich-toast-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border-bottom: 1px solid var(--cf-border);
    background: var(--cf-surface-alt);
    position: relative;
    z-index: 1;
    overflow: hidden;
    border-radius: var(--cf-radius) var(--cf-radius) 0 0;
}

.cf-rich-toast-header i {
    font-size: 16px;
    flex-shrink: 0;
}

.cf-rich-toast-header strong {
    font-size: 13px;
    font-weight: 600;
    color: var(--cf-text);
    flex: 1;
}

.cf-rich-toast-header small {
    font-size: 11px;
    color: var(--cf-text-muted);
    flex-shrink: 0;
}

.cf-rich-toast-close {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--cf-text-muted);
    opacity: 0.6;
    font-size: 16px;
    padding: 0;
    line-height: 1;
    flex-shrink: 0;
    margin-left: 4px;
    transition: opacity 0.15s;
}

.cf-rich-toast-close:hover {
    opacity: 1;
}

.cf-rich-toast-body {
    padding: 12px 14px;
    font-size: 13px;
    color: var(--cf-text);
    line-height: 1.5;
    position: relative;
    z-index: 1;
    background: var(--cf-surface);
}

.cf-rich-toast-actions {
    display: flex;
    gap: 8px;
    padding: 10px 14px;
    border-top: 1px solid var(--cf-border);
    background: var(--cf-surface-alt);
    position: relative;
    z-index: 1;
    overflow: hidden;
    border-radius: 0 0 var(--cf-radius) var(--cf-radius);
}

.cf-rich-toast-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    font-weight: 500;
    padding: 5px 12px;
    border-radius: var(--cf-radius-sm);
    border: 1px solid var(--cf-border);
    background: var(--cf-surface);
    color: var(--cf-text);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    font-family: inherit;
}

.cf-rich-toast-action-btn:hover {
    background: var(--cf-bg);
    border-color: var(--cf-border-strong);
}

.cf-rich-toast-action-btn i {
    font-size: 11px;
}

/* ── 5. Page Layout ─────────────────────────────────────────────── */
main {
    min-height: calc(100vh - 52px - 53px);
}

.cf-page {
    padding: 32px 0;
}

.cf-page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--cf-border);
}

.cf-page-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--cf-text);
    margin: 0 0 3px;
    letter-spacing: -0.02em;
}

.cf-page-subtitle {
    font-size: 13.5px;
    color: var(--cf-text-muted);
    margin: 0;
}

/* ── 6. Cards ───────────────────────────────────────────────────── */
.cf-card {
    background: var(--cf-surface);
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    overflow: hidden;
}

.cf-card-header {
    padding: 14px 20px;
    border-bottom: 1px solid var(--cf-border);
    background: var(--cf-surface-alt);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.cf-card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--cf-text);
    margin: 0;
}

.cf-card-body {
    padding: 20px;
}

.cf-card-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--cf-border);
    background: var(--cf-surface-alt);
}

/* Course card */
.cf-course-card {
    background: var(--cf-surface);
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: border-color 0.15s, box-shadow 0.15s;
    height: 100%;
}

.cf-course-card:hover {
    border-color: var(--cf-border-strong);
    box-shadow: var(--cf-shadow);
}

.cf-course-thumb {
    height: 170px;
    overflow: hidden;
    background: #F0F0F2;
    flex-shrink: 0;
    position: relative;
}

.cf-course-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cf-course-thumb-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #F0F0F2, #E5E5EA);
}

.cf-course-thumb-placeholder i {
    font-size: 2.5rem;
    color: var(--cf-text-faint);
}

.cf-course-body {
    padding: 16px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.cf-course-meta {
    display: flex;
    gap: 6px;
    margin-bottom: 10px;
}

.cf-course-title {
    font-size: 14.5px;
    font-weight: 600;
    color: var(--cf-text);
    margin: 0 0 4px;
    line-height: 1.4;
    text-decoration: none;
}

.cf-course-title:hover {
    color: var(--cf-orange);
}

.cf-course-instructor {
    font-size: 12.5px;
    color: var(--cf-text-muted);
    margin-bottom: 8px;
}

.cf-course-summary {
    font-size: 12.5px;
    color: var(--cf-text-muted);
    margin-bottom: 14px;
    flex: 1;
    line-height: 1.5;
}

.cf-course-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 12px;
    border-top: 1px solid var(--cf-border);
    margin-top: auto;
}

.cf-course-price {
    font-size: 14px;
    font-weight: 700;
    color: var(--cf-text);
}

.cf-course-price.free {
    color: var(--cf-success);
}

.cf-course-enrolled {
    font-size: 12px;
    color: var(--cf-text-muted);
}

/* ── 7. Badges / Tags ───────────────────────────────────────────── */
.cf-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.02em;
    padding: 2px 8px;
    border-radius: 99px;
    border: 1px solid;
}

.cf-badge-orange {
    background: var(--cf-orange-light);
    border-color: #FED7AA;
    color: #C2410C;
}

.cf-badge-green {
    background: var(--cf-success-bg);
    border-color: #86EFAC;
    color: #15803D;
}

.cf-badge-success {
    background: #D1FAE5;
    border-color: #6EE7B7;
    color: #059669;
}

.cf-badge-gray {
    background: var(--cf-bg);
    border-color: var(--cf-border);
    color: var(--cf-text-muted);
}

.cf-badge-neutral {
    background: #F3F4F6;
    border-color: #D1D5DB;
    color: #6B7280;
}

.cf-badge-blue {
    background: var(--cf-info-bg);
    border-color: #7DD3FC;
    color: var(--cf-info);
}

.cf-badge-yellow {
    background: var(--cf-warning-bg);
    border-color: #FCD34D;
    color: #92400E;
}

.cf-badge-warning {
    background: #FEF3C7;
    border-color: #FCD34D;
    color: #D97706;
}

.cf-badge-danger {
    background: #FEE2E2;
    border-color: #FECACA;
    color: #DC2626;
}

/* ── 8. Buttons ─────────────────────────────────────────────────── */
.cf-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13.5px;
    font-weight: 500;
    padding: 7px 14px;
    border-radius: var(--cf-radius-sm);
    border: 1px solid;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
    white-space: nowrap;
    font-family: inherit;
    line-height: 1.4;
}

.cf-btn-sm {
    padding: 4px 10px;
    font-size: 12.5px;
}

.cf-btn-lg {
    padding: 10px 20px;
    font-size: 15px;
}

.cf-btn-primary {
    background: var(--cf-orange);
    border-color: var(--cf-orange);
    color: #FFFFFF;
}

.cf-btn-primary:hover {
    background: var(--cf-orange-dark);
    border-color: var(--cf-orange-dark);
    color: #fff;
}

.cf-btn-outline {
    background: transparent;
    border-color: var(--cf-border-strong);
    color: var(--cf-text);
}

.cf-btn-outline:hover {
    background: var(--cf-bg);
    border-color: var(--cf-border-strong);
    color: var(--cf-text);
}

.cf-btn-ghost {
    background: transparent;
    border-color: transparent;
    color: var(--cf-text-muted);
}

.cf-btn-ghost:hover {
    background: var(--cf-bg);
    border-color: var(--cf-border);
    color: var(--cf-text);
}

.cf-btn-success {
    background: var(--cf-success);
    border-color: var(--cf-success);
    color: #fff;
}

.cf-btn-success:hover {
    background: #15803D;
    border-color: #15803D;
    color: #fff;
}

.cf-btn-danger {
    background: transparent;
    border-color: #FCA5A5;
    color: var(--cf-danger);
}

.cf-btn-danger:hover {
    background: var(--cf-danger-bg);
}

.cf-btn:disabled, .cf-btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* ── 9. Forms ───────────────────────────────────────────────────── */
.cf-form-group {
    margin-bottom: 18px;
}

.cf-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--cf-text);
    margin-bottom: 5px;
}

.cf-label .required {
    color: var(--cf-danger);
    margin-left: 2px;
}

.cf-input,
.cf-select,
.cf-textarea {
    width: 100%;
    background: var(--cf-surface);
    border: 1px solid var(--cf-border-strong);
    border-radius: var(--cf-radius-sm);
    padding: 8px 12px;
    font-size: 13.5px;
    color: var(--cf-text);
    font-family: inherit;
    transition: border-color 0.15s, box-shadow 0.15s;
    outline: none;
    appearance: none;
}

.cf-input:focus,
.cf-select:focus,
.cf-textarea:focus {
    border-color: var(--cf-orange);
    box-shadow: 0 0 0 3px rgba(246, 130, 31, 0.12);
}

.cf-input::placeholder,
.cf-textarea::placeholder {
    color: var(--cf-text-faint);
}

.cf-textarea {
    resize: vertical;
    min-height: 100px;
    line-height: 1.5;
}

.cf-select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236E6E80' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
    cursor: pointer;
}

.cf-form-hint {
    font-size: 12px;
    color: var(--cf-text-muted);
    margin-top: 4px;
}

.cf-form-error {
    font-size: 12px;
    color: var(--cf-danger);
    margin-top: 4px;
}

/* Bootstrap form override */
.form-control, .form-select {
    border: 1px solid var(--cf-border-strong);
    border-radius: var(--cf-radius-sm);
    font-size: 13.5px;
    padding: 8px 12px;
    background: var(--cf-surface);
    color: var(--cf-text);
    box-shadow: none;
}

.form-control:focus, .form-select:focus {
    border-color: var(--cf-orange);
    box-shadow: 0 0 0 3px rgba(246, 130, 31, 0.12);
}

.form-label {
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 5px;
}

/* ── 10. Progress Bars ──────────────────────────────────────────── */
.cf-progress {
    height: 4px;
    background: var(--cf-border);
    border-radius: 99px;
    overflow: hidden;
}

.cf-progress-bar {
    height: 100%;
    background: var(--cf-orange);
    border-radius: 99px;
    transition: width 0.4s ease;
}

.cf-progress-bar.green {
    background: var(--cf-success);
}

.cf-progress-md {
    height: 6px;
}

.cf-progress-lg {
    height: 8px;
}

/* ── 11. Tables ─────────────────────────────────────────────────── */
.cf-table-wrap {
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    overflow: hidden;
}

.cf-table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.cf-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
}

.cf-table thead th {
    background: var(--cf-surface-alt);
    padding: 10px 16px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--cf-text-muted);
    border-bottom: 1px solid var(--cf-border);
    text-align: left;
}

.cf-table tbody td {
    padding: 11px 16px;
    border-bottom: 1px solid var(--cf-border);
    color: var(--cf-text);
    vertical-align: middle;
}

.cf-table tbody tr:last-child td {
    border-bottom: none;
}

.cf-table tbody tr:hover td {
    background: var(--cf-surface-alt);
}

/* ── 12. Sidebar layout ─────────────────────────────────────────── */
.cf-layout {
    display: grid;
    grid-template-columns: 220px 1fr;
    min-height: calc(100vh - 52px);
    transition: grid-template-columns 0.2s ease;
}

.cf-layout.sidebar-collapsed {
    grid-template-columns: 60px 1fr;
}

.cf-sidebar {
    background: var(--cf-surface);
    border-right: 1px solid var(--cf-border);
    padding: 20px 0;
    position: sticky;
    top: 52px;
    height: calc(100vh - 52px);
    overflow-y: auto;
    transition: width 0.2s ease;
    display: flex;
    flex-direction: column;
}

/* Thin scrollbar for sidebar */
.cf-sidebar::-webkit-scrollbar {
    width: 4px;
}

.cf-sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.cf-sidebar::-webkit-scrollbar-thumb {
    background: var(--cf-border);
    border-radius: 2px;
}

.cf-sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--cf-border-strong);
}

/* Collapsed sidebar */
.cf-sidebar.collapsed {
    width: 60px;
}

.cf-sidebar.collapsed .cf-sidebar-label,
.cf-sidebar.collapsed .cf-sidebar-link span,
.cf-sidebar.collapsed .cf-badge {
    display: none;
}

.cf-sidebar.collapsed .cf-sidebar-link {
    justify-content: center;
    padding: 10px;
}

.cf-sidebar.collapsed .cf-sidebar-link i {
    margin: 0;
}

.cf-sidebar-section {
    padding: 0 12px;
    margin-bottom: 4px;
}

.cf-sidebar-label {
    font-size: 10.5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--cf-text-muted);
    padding: 0 8px;
    margin: 16px 0 4px;
}

.cf-sidebar-link {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 7px 8px;
    font-size: 13.5px;
    font-weight: 500;
    color: var(--cf-text);
    text-decoration: none;
    border-radius: var(--cf-radius-sm);
    border: 1px solid transparent;
    transition: background 0.12s, color 0.12s, border-color 0.12s;
    position: relative;
}

.cf-sidebar-link span {
    flex: 1;
}

.cf-sidebar-link:hover {
    background: var(--cf-bg);
    color: var(--cf-text);
}

.cf-sidebar-link.active {
    background: var(--cf-orange-light);
    color: var(--cf-orange);
    border-color: #FED7AA;
    font-weight: 600;
}

.cf-sidebar-link i {
    font-size: 14px;
    flex-shrink: 0;
}

/* Nested menu styles */
.cf-sidebar-parent {
    position: relative;
}

.cf-sidebar-toggle {
    width: 100%;
    text-align: left;
    cursor: pointer;
    background: transparent;
    border: 1px solid transparent;
}

.cf-sidebar-toggle .cf-chevron {
    margin-left: auto;
    font-size: 11px;
    transition: transform 0.2s;
}

.cf-sidebar-toggle.expanded .cf-chevron {
    transform: rotate(180deg);
}

.cf-sidebar-children {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.cf-sidebar-children.show {
    max-height: 500px;
}

.cf-sidebar-children-inner {
    position: relative;
    padding-left: 20px;
    margin-left: 12px;
    margin-top: 4px;
    margin-bottom: 4px;
}

.cf-sidebar-children-inner::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--cf-border);
    border-radius: 2px;
}

.cf-sidebar-child {
    padding: 6px 8px;
    font-size: 13px;
    position: relative;
}

.cf-sidebar-child::before {
    content: '';
    position: absolute;
    left: -20px;
    top: 50%;
    width: 12px;
    height: 2px;
    background: var(--cf-border);
    border-radius: 2px;
}

.cf-sidebar-child:hover::before {
    background: var(--cf-orange);
}

.cf-sidebar-child.active::before {
    background: var(--cf-orange);
}

/* Collapsed sidebar - hide children */
.cf-sidebar.collapsed .cf-sidebar-children {
    display: none;
}

.cf-sidebar.collapsed .cf-sidebar-toggle .cf-chevron {
    display: none;
}

.cf-sidebar-divider {
    height: 1px;
    background: var(--cf-border);
    margin: 12px 12px;
}

.cf-content-area {
    padding: 28px 32px;
}

/* ── 13. Hero Section ───────────────────────────────────────────── */
.cf-hero {
    background: var(--cf-nav-bg);
    padding: 60px 0;
    position: relative;
    overflow: hidden;
}

.cf-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cf-hero-content {
    position: relative;
    z-index: 1;
}

.cf-hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--cf-orange);
    margin-bottom: 14px;
}

.cf-hero-title {
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 700;
    color: #FFFFFF;
    letter-spacing: -0.03em;
    line-height: 1.15;
    margin-bottom: 14px;
}

.cf-hero-subtitle {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.55);
    margin-bottom: 28px;
    max-width: 480px;
    line-height: 1.6;
}

.cf-hero-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* Stat strip */
.cf-stat-strip {
    background: var(--cf-surface);
    border-top: 1px solid var(--cf-border);
    border-bottom: 1px solid var(--cf-border);
    padding: 0;
}

.cf-stat-item {
    padding: 18px 24px;
    border-right: 1px solid var(--cf-border);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.cf-stat-item:last-child {
    border-right: none;
}

.cf-stat-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--cf-text);
    letter-spacing: -0.02em;
}

.cf-stat-label {
    font-size: 12px;
    color: var(--cf-text-muted);
}

/* ── 14. Section divider ────────────────────────────────────────── */
.cf-section {
    padding: 40px 0;
}

.cf-section + .cf-section {
    border-top: 1px solid var(--cf-border);
}

.cf-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.cf-section-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--cf-text);
    margin: 0;
    letter-spacing: -0.01em;
}

/* ── 15. Category Pills ─────────────────────────────────────────── */
.cf-categories {
    background: var(--cf-surface);
    border-bottom: 1px solid var(--cf-border);
    padding: 12px 0;
}

.cf-cat-pill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 12px;
    font-size: 13px;
    color: var(--cf-text-muted);
    border: 1px solid var(--cf-border);
    border-radius: 99px;
    text-decoration: none;
    background: var(--cf-surface);
    transition: border-color 0.12s, color 0.12s, background 0.12s;
    white-space: nowrap;
}

.cf-cat-pill:hover,
.cf-cat-pill.active {
    border-color: var(--cf-orange);
    color: var(--cf-orange);
    background: var(--cf-orange-light);
}

.cf-cat-pill .count {
    font-size: 11px;
    font-weight: 600;
    color: var(--cf-text-faint);
    background: var(--cf-bg);
    border-radius: 99px;
    padding: 0 5px;
}

/* ── 16. Filter sidebar ─────────────────────────────────────────── */
.cf-filter-panel {
    background: var(--cf-surface);
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
}

.cf-filter-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--cf-border);
    font-size: 13px;
    font-weight: 600;
    color: var(--cf-text);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.cf-filter-body {
    padding: 16px;
}

.cf-filter-section {
    margin-bottom: 16px;
}

.cf-filter-section:last-child {
    margin-bottom: 0;
}

.cf-filter-label {
    font-size: 11.5px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--cf-text-faint);
    margin-bottom: 8px;
}

/* ── 17. Pagination ─────────────────────────────────────────────── */
.cf-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 24px 0;
    border-top: 1px solid var(--cf-border);
}

.cf-pagination-info {
    font-size: 13px;
    color: var(--cf-text-muted);
    padding: 0 12px;
}

.cf-page-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    height: 32px;
    padding: 0 10px;
    font-size: 13px;
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius-sm);
    color: var(--cf-text-muted);
    text-decoration: none;
    transition: all 0.12s;
    background: var(--cf-surface);
}

.cf-page-link:hover {
    border-color: var(--cf-border-strong);
    color: var(--cf-text);
    background: var(--cf-bg);
}

.cf-page-link.active {
    background: var(--cf-orange);
    border-color: var(--cf-orange);
    color: #fff;
}

.cf-page-link.disabled {
    opacity: 0.4;
    pointer-events: none;
}

/* ── 18. Course detail ──────────────────────────────────────────── */
.cf-course-hero {
    background: var(--cf-nav-bg);
    padding: 32px 0;
    border-bottom: 1px solid #2D2D30;
    position: relative;
    overflow: hidden;
}

.cf-course-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom,
    rgba(29, 29, 31, 0.3) 0%,
    rgba(29, 29, 31, 0.7) 50%,
    rgba(29, 29, 31, 0.95) 100%);
    z-index: 1;
}

.cf-course-hero.has-thumbnail {
    background-size: cover;
    background-position: center top;
    background-repeat: no-repeat;
}

.cf-course-hero .container {
    position: relative;
    z-index: 2;
}

.cf-course-hero-title {
    font-size: clamp(20px, 3vw, 28px);
    font-weight: 700;
    color: #FFFFFF;
    letter-spacing: -0.02em;
    margin-bottom: 10px;
}

.cf-course-hero-summary {
    color: rgba(255, 255, 255, 0.75);
    font-size: 14.5px;
    margin-bottom: 16px;
    max-width: 600px;
    line-height: 1.6;
}

.cf-course-meta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
}

.cf-course-meta-item {
    display: flex;
    align-items: center;
    gap: 5px;
}

/* Enroll card */
.cf-enroll-card {
    background: var(--cf-surface);
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    overflow: hidden;
    position: sticky;
    top: 70px;
}

.cf-enroll-card-thumb {
    height: 180px;
    overflow: hidden;
    background: #F0F0F2;
}

.cf-enroll-card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cf-enroll-body {
    padding: 20px;
}

.cf-price-display {
    font-size: 24px;
    font-weight: 700;
    color: var(--cf-text);
    margin-bottom: 14px;
}

.cf-price-display.free {
    color: var(--cf-success);
}

.cf-enroll-features {
    list-style: none;
    padding: 0;
    margin: 14px 0 0;
}

.cf-enroll-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--cf-text-muted);
    padding: 5px 0;
    border-bottom: 1px solid var(--cf-border);
}

.cf-enroll-features li:last-child {
    border-bottom: none;
}

.cf-enroll-features i {
    color: var(--cf-text-faint);
}

/* Accordion / curriculum */
.cf-accordion-item {
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius-sm);
    margin-bottom: 6px;
    overflow: hidden;
}

.cf-accordion-trigger {
    width: 100%;
    background: var(--cf-surface-alt);
    border: none;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--cf-text);
    text-align: left;
    transition: background 0.12s;
}

.cf-accordion-trigger:hover {
    background: var(--cf-bg);
}

.cf-accordion-trigger .chevron {
    margin-left: auto;
    font-size: 12px;
    color: var(--cf-text-muted);
    transition: transform 0.2s;
}

.cf-accordion-trigger[aria-expanded="true"] .chevron {
    transform: rotate(180deg);
}

.cf-accordion-body {
    border-top: 1px solid var(--cf-border);
}

.cf-lesson-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    font-size: 13.5px;
    color: var(--cf-text);
    border-bottom: 1px solid var(--cf-border);
}

.cf-lesson-item:last-child {
    border-bottom: none;
}

.cf-lesson-item .lesson-icon {
    color: var(--cf-text-faint);
    font-size: 14px;
    flex-shrink: 0;
}

.cf-lesson-item .lesson-title {
    flex: 1;
}

.cf-lesson-item .lesson-dur {
    font-size: 12px;
    color: var(--cf-text-faint);
    font-family: 'IBM Plex Mono', monospace;
}

/* ── 19. Learning shell ─────────────────────────────────────────── */
.cf-learn-shell {
    display: flex;
    height: calc(100vh - 52px);
    overflow: hidden;
}

.cf-learn-sidebar {
    width: 300px;
    min-width: 300px;
    background: linear-gradient(180deg, #fafafa 0%, #f5f5f5 100%);
    border-right: 1px solid #e5e7eb;
    box-shadow: 2px 0 12px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.cf-learn-sidebar-head {
    padding: 20px;
    border-bottom: 1px solid #e5e7eb;
    background: #ffffff;
    flex-shrink: 0;
}

.cf-learn-back {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 500;
    color: #6b7280;
    text-decoration: none;
    margin-bottom: 16px;
    padding: 8px 12px;
    border-radius: 8px;
    transition: all 0.2s;
}

.cf-learn-back:hover {
    color: #111827;
    background: #f3f4f6;
}

.cf-progress-compact {
    display: flex;
    align-items: center;
    gap: 10px;
}

.cf-progress-ring svg {
    flex-shrink: 0;
}

.cf-progress-ring-bg {
    fill: none;
    stroke: var(--cf-border);
    stroke-width: 4;
}

.cf-progress-ring-fill {
    fill: none;
    stroke: var(--cf-orange);
    stroke-width: 4;
    stroke-linecap: round;
    stroke-dasharray: 100.53;
    transform: rotate(-90deg);
    transform-origin: 50% 50%;
    transition: stroke-dashoffset 0.6s ease;
}

.cf-progress-text {
    font-size: 13px;
    font-weight: 600;
    color: var(--cf-text);
}

.cf-progress-sub {
    font-size: 11.5px;
    color: var(--cf-text-muted);
}

.cf-learn-top-bar {
    height: 3px;
    background: #e5e7eb;
    flex-shrink: 0;
}

.cf-learn-top-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #ff6b35 0%, #f7931e 100%);
    box-shadow: 0 0 8px rgba(255, 107, 53, 0.4);
    transition: width 0.4s ease;
}

.cf-learn-sidebar-scroll {
    flex: 1;
    overflow-y: auto;
}

.cf-module-header {
    padding: 12px 20px;
    background: #ffffff;
    border-bottom: 1px solid #e5e7eb;
    position: sticky;
    top: 0;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.cf-module-name {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #6b7280;
}

.cf-module-count {
    font-size: 11px;
    color: var(--cf-text-faint);
}

.cf-lesson-nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    font-size: 14px;
    color: #4b5563;
    text-decoration: none;
    border-bottom: 1px solid #f3f4f6;
    border-left: 3px solid transparent;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.cf-lesson-nav-link:hover {
    background: #f9fafb;
    color: #111827;
    padding-left: 24px;
}

.cf-lesson-nav-link.active {
    background: linear-gradient(90deg, #fff7ed 0%, #ffedd5 100%);
    color: #ea580c;
    border-left-color: #ff6b35;
    border-left-width: 4px;
    font-weight: 600;
    box-shadow: inset 0 1px 2px rgba(255, 107, 53, 0.1);
}

.cf-lesson-nav-link.done {
    color: #059669;
    font-weight: 500;
}

.cf-lesson-nav-link .nav-dur {
    margin-left: auto;
    font-size: 11px;
    color: var(--cf-text-faint);
    font-family: 'IBM Plex Mono', monospace;
    white-space: nowrap;
}

.cf-learn-main {
    flex: 1;
    display: flex;
    flex-direction: row;
    overflow: hidden;
    position: relative;
}

.cf-learn-topbar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    border-bottom: 1px solid var(--cf-border);
    background: var(--cf-surface);
    flex-shrink: 0;
}

.cf-learn-topbar-info {
    flex: 1;
    font-size: 13px;
    color: var(--cf-text-muted);
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cf-learn-body {
    flex: 1;
    overflow-y: auto;
    padding: 28px 36px;
    max-width: 860px;
    width: 100%;
    margin: 0 auto;
}

.cf-lesson-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--cf-text);
    margin-bottom: 6px;
    letter-spacing: -0.02em;
}

.cf-lesson-meta {
    font-size: 12.5px;
    color: var(--cf-text-muted);
    margin-bottom: 24px;
}

.cf-video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    margin-bottom: 24px;
    background: #000;
}

.cf-video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.cf-text-content {
    background: var(--cf-surface);
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    padding: 24px;
    font-size: 14.5px;
    line-height: 1.85;
    color: var(--cf-text);
    margin-bottom: 24px;
}

.cf-resource-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    margin-bottom: 16px;
    background: var(--cf-surface);
}

.cf-resource-icon {
    font-size: 22px;
    color: var(--cf-text-faint);
    flex-shrink: 0;
}

.cf-quiz-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px;
    border: 1px solid #FCD34D;
    border-radius: var(--cf-radius);
    background: var(--cf-warning-bg);
    margin-bottom: 16px;
}

.cf-learn-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 28px;
    margin-top: 28px;
    border-top: 1px solid var(--cf-border);
}

.cf-complete-banner {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    border: 1px solid #86EFAC;
    border-radius: var(--cf-radius);
    background: var(--cf-success-bg);
    margin-top: 20px;
}

/* Topics Sidebar */
.cf-learn-topics-sidebar {
    width: 260px;
    min-width: 260px;
    background: linear-gradient(180deg, #ffffff 0%, #fafafa 100%);
    border-left: 1px solid #e5e7eb;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: -2px 0 12px rgba(0, 0, 0, 0.04);
}

.cf-topics-header {
    padding: 16px 20px;
    border-bottom: 1px solid #e5e7eb;
    background: #ffffff;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 600;
    color: #374151;
    position: sticky;
    top: 0;
    z-index: 5;
}

.cf-topics-scroll {
    flex: 1;
    overflow-y: auto;
    padding: 12px 0;
}

.cf-topic-item {
    display: flex;
    align-items: flex-start;
    gap: 0;
    padding: 10px 20px 10px 16px;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
    text-decoration: none;
    color: inherit;
}

.cf-topic-tracker {
    width: 3px;
    height: 100%;
    background: #e5e7eb;
    border-radius: 2px;
    position: absolute;
    left: 0;
    top: 0;
    transition: all 0.3s;
}

.cf-topic-item.active .cf-topic-tracker {
    background: linear-gradient(180deg, #ff6b35 0%, #f7931e 100%);
    width: 4px;
    box-shadow: 0 0 8px rgba(255, 107, 53, 0.4);
}

.cf-topic-content {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    color: #6b7280;
    font-weight: 500;
    padding-left: 12px;
    transition: all 0.2s;
}

.cf-topic-item.active .cf-topic-content {
    color: #ea580c;
    font-weight: 600;
    transform: translateX(4px);
}

.cf-topic-item:hover .cf-topic-content {
    color: #374151;
    transform: translateX(2px);
}

.cf-topic-item .bi {
    font-size: 16px;
    opacity: 0.7;
}

.cf-topic-item.active .bi {
    opacity: 1;
}

.cf-lessons-group {
    margin-bottom: 20px;
}

.cf-lessons-module-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #6b7280;
    padding: 12px 20px 8px;
    background: #f9fafb;
    border-bottom: 1px solid #e5e7eb;
    position: sticky;
    top: 0;
    z-index: 5;
}

.lesson-dur {
    font-size: 11px;
    color: #9ca3af;
    font-family: 'IBM Plex Mono', monospace;
    white-space: nowrap;
}

.cf-advance-toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--cf-surface);
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    padding: 14px 18px;
    display: none;
    align-items: center;
    gap: 12px;
    z-index: 1050;
    box-shadow: var(--cf-shadow);
    min-width: 300px;
}

/* ── 20. Dashboard stats ────────────────────────────────────────── */
.cf-stat-card {
    background: var(--cf-surface);
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.cf-stat-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--cf-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.cf-stat-icon.orange {
    background: var(--cf-orange-light);
    color: var(--cf-orange);
}

.cf-stat-icon.green {
    background: var(--cf-success-bg);
    color: var(--cf-success);
}

.cf-stat-icon.blue {
    background: var(--cf-info-bg);
    color: var(--cf-info);
}

.cf-stat-icon.yellow {
    background: var(--cf-warning-bg);
    color: var(--cf-warning);
}

.cf-stat-number {
    font-size: 26px;
    font-weight: 700;
    color: var(--cf-text);
    letter-spacing: -0.03em;
    line-height: 1;
    margin-bottom: 3px;
}

.cf-stat-desc {
    font-size: 12.5px;
    color: var(--cf-text-muted);
}

/* Continue learning card */
.cf-continue-card {
    background: var(--cf-surface);
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    padding: 16px;
    transition: border-color 0.15s;
}

.cf-continue-card:hover {
    border-color: var(--cf-border-strong);
}

/* Activity list */
.cf-activity-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--cf-border);
}

.cf-activity-item:last-child {
    border-bottom: none;
}

.cf-activity-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--cf-radius-sm);
    border: 1px solid var(--cf-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    color: var(--cf-text-faint);
    flex-shrink: 0;
}

/* ── 21. Instructor panel ───────────────────────────────────────── */
.cf-instructor-form .cf-form-section {
    background: var(--cf-surface);
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    margin-bottom: 20px;
    overflow: hidden;
}

.cf-drop-zone {
    border: 2px dashed var(--cf-border-strong);
    border-radius: var(--cf-radius);
    padding: 28px;
    text-align: center;
    color: var(--cf-text-muted);
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
}

.cf-drop-zone:hover {
    border-color: var(--cf-orange);
    background: var(--cf-orange-light);
}

.cf-drop-zone i {
    font-size: 24px;
    color: var(--cf-text-faint);
    margin-bottom: 8px;
}

/* ── 22. Certificates ───────────────────────────────────────────── */
.cf-cert-card {
    background: var(--cf-surface);
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    overflow: hidden;
    transition: border-color 0.15s;
    height: 100%;
}

.cf-cert-card:hover {
    border-color: var(--cf-border-strong);
}

.cf-cert-header {
    background: linear-gradient(135deg, #1A2340 0%, #2C3E6B 100%);
    padding: 20px;
    position: relative;
    overflow: hidden;
}

.cf-cert-header::before {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: rgba(246, 130, 31, 0.12);
}

.cf-cert-ribbon {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--cf-orange);
    border: 1px solid rgba(246, 130, 31, 0.3);
    border-radius: 99px;
    padding: 2px 10px;
    display: inline-block;
    margin-bottom: 10px;
}

.cf-cert-title {
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 4px;
}

.cf-cert-instructor {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 8px;
}

.cf-cert-code {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.3);
    font-family: 'IBM Plex Mono', monospace;
}

.cf-cert-body {
    padding: 16px;
}

/* ── 23. Footer ─────────────────────────────────────────────────── */
.cf-footer {
    background: var(--cf-surface);
    border-top: 1px solid var(--cf-border);
    padding: 14px 0;
    text-align: center;
    font-size: 12.5px;
    color: var(--cf-text-muted);
}

/* ── 24. Empty states ───────────────────────────────────────────── */
.cf-empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--cf-text-muted);
}

.cf-empty i {
    font-size: 3.5rem;
    color: var(--cf-text-faint);
    margin-bottom: 16px;
    display: block;
}

.cf-empty h5 {
    font-size: 16px;
    font-weight: 600;
    color: var(--cf-text);
    margin-bottom: 8px;
}

.cf-empty p {
    font-size: 13.5px;
    margin-bottom: 20px;
}

/* ── 25. Responsive ─────────────────────────────────────────────── */
@media (max-width: 991px) {
    .cf-layout {
        grid-template-columns: 1fr;
    }

    .cf-sidebar {
        display: none;
        position: static;
        height: auto;
    }

    .cf-sidebar.mobile-open {
        display: block;
    }

    .cf-content-area {
        padding: 20px 16px;
    }
}

@media (max-width: 768px) {
    body {
        overflow: auto;
    }

    .cf-learn-shell {
        flex-direction: column;
        height: auto;
        overflow: visible;
    }

    .cf-learn-sidebar {
        width: 100%;
        min-width: unset;
        max-height: 260px;
        border-right: none;
        border-bottom: 1px solid var(--cf-border);
    }

    .cf-learn-main {
        overflow: visible;
        height: auto;
    }

    .cf-learn-body {
        padding: 16px;
    }

    .cf-learn-topbar {
        flex-wrap: wrap;
        padding: 8px 12px;
    }

    .cf-hero {
        padding: 40px 0;
    }

    .cf-nav-links {
        display: none;
    }

    .cf-nav-search {
        display: none;
    }

    .cf-nav-toggle {
        display: flex;
    }
}

@media (max-width: 576px) {
    .cf-page-header {
        flex-direction: column;
        gap: 12px;
    }

    .cf-hero-actions {
        flex-direction: column;
    }
}

/* ── 26. Bootstrap overrides ────────────────────────────────────── */
.card {
    border-color: var(--cf-border);
    border-radius: var(--cf-radius);
}

.btn-primary {
    background: var(--cf-orange);
    border-color: var(--cf-orange);
}

.btn-primary:hover {
    background: var(--cf-orange-dark);
    border-color: var(--cf-orange-dark);
}

.btn-outline-primary {
    border-color: var(--cf-orange);
    color: var(--cf-orange);
}

.btn-outline-primary:hover {
    background: var(--cf-orange);
    border-color: var(--cf-orange);
}

.badge.bg-primary {
    background: var(--cf-orange) !important;
}

.text-primary {
    color: var(--cf-orange) !important;
}

.border-primary {
    border-color: var(--cf-orange) !important;
}

.bg-primary {
    background: var(--cf-orange) !important;
}

.accordion-button:not(.collapsed) {
    color: var(--cf-orange);
    background: var(--cf-orange-light);
    box-shadow: none;
}

.accordion-button:focus {
    box-shadow: none;
    border-color: var(--cf-border);
}

.progress-bar {
    background: var(--cf-orange);
}

.nav-pills .nav-link.active {
    background: var(--cf-orange);
}

/* Monospace for codes */
code, kbd, .mono {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.9em;
}


/* ═══════════════════════════════════════════════════════════════════
   PUBLIC / MARKETING LAYER — additions to core design system
   All tokens reuse :root vars defined above. Zero duplication.
   ═══════════════════════════════════════════════════════════════════ */

/* ── 27. Public navbar (wider, marketing feel) ──────────────────── */
.cf-pub-nav {
    background: var(--cf-surface);
    border-bottom: 1px solid var(--cf-border);
    height: 56px;
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1030;
}

.cf-pub-nav .container {
    display: flex;
    align-items: center;
    gap: 0;
    height: 100%;
    max-width: 1200px;
}

.cf-pub-brand {
    display: flex;
    align-items: center;
    gap: 9px;
    color: var(--cf-text) !important;
    text-decoration: none;
    font-weight: 800;
    font-size: 16px;
    letter-spacing: -0.03em;
    padding-right: 28px;
    border-right: 1px solid var(--cf-border);
    margin-right: 24px;
    height: 100%;
    flex-shrink: 0;
}

.cf-pub-brand .brand-dot {
    width: 28px;
    height: 28px;
    background: var(--cf-orange);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.cf-pub-brand .brand-dot i {
    font-size: 13px;
    color: #fff;
}

.cf-pub-brand .brand-name {
    color: var(--cf-text);
}

.cf-pub-brand .brand-name span {
    color: var(--cf-orange);
}

.cf-pub-nav-links {
    display: flex;
    align-items: center;
    gap: 0;
    height: 100%;
    flex: 1;
}

.cf-pub-nav-link {
    color: var(--cf-text-muted);
    text-decoration: none;
    font-size: 14px;
    font-weight: 400;
    padding: 0 14px;
    height: 100%;
    display: flex;
    align-items: center;
    border-bottom: 2px solid transparent;
    transition: color 0.15s, border-color 0.15s;
    white-space: nowrap;
}

.cf-pub-nav-link:hover {
    color: var(--cf-text);
    border-bottom-color: var(--cf-border-strong);
}

.cf-pub-nav-link.active {
    color: var(--cf-orange);
    border-bottom-color: var(--cf-orange);
    font-weight: 500;
}

.cf-pub-nav-right {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
}

.cf-pub-nav-divider {
    width: 1px;
    height: 20px;
    background: var(--cf-border);
    margin: 0 4px;
}

/* ── 28. Public footer ──────────────────────────────────────────── */
.cf-pub-footer {
    background: var(--cf-nav-bg);
    border-top: 1px solid #2D2D30;
    padding: 48px 0 0;
    color: rgba(255, 255, 255, 0.55);
    font-size: 13.5px;
}

.cf-pub-footer-brand {
    display: flex;
    align-items: center;
    gap: 9px;
    color: #fff;
    text-decoration: none;
    font-weight: 800;
    font-size: 16px;
    letter-spacing: -0.03em;
    margin-bottom: 10px;
}

.cf-pub-footer-brand .brand-dot {
    width: 26px;
    height: 26px;
    background: var(--cf-orange);
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cf-pub-footer-brand .brand-dot i {
    font-size: 12px;
    color: #fff;
}

.cf-pub-footer-tagline {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.35);
    margin-bottom: 0;
}

.cf-pub-footer-heading {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: rgba(255, 255, 255, 0.25);
    margin-bottom: 12px;
}

.cf-pub-footer-link {
    display: block;
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    font-size: 13.5px;
    padding: 3px 0;
    transition: color 0.12s;
}

.cf-pub-footer-link:hover {
    color: #fff;
}

.cf-pub-footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 16px 0;
    margin-top: 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
}

.cf-pub-footer-copy {
    font-size: 12.5px;
    color: rgba(255, 255, 255, 0.25);
}

/* ── 29. Marketing hero (bigger, lighter bg) ────────────────────── */
.cf-mkt-hero {
    background: var(--cf-nav-bg);
    padding: 80px 0 72px;
    position: relative;
    overflow: hidden;
}

.cf-mkt-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 800px 500px at 70% 50%, rgba(246, 130, 31, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.cf-mkt-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none'%3E%3Cg fill='%23ffffff' fill-opacity='0.015'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cf-mkt-hero .container {
    position: relative;
    z-index: 1;
}

.cf-mkt-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 11.5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--cf-orange);
    border: 1px solid rgba(246, 130, 31, 0.25);
    background: rgba(246, 130, 31, 0.06);
    border-radius: 99px;
    padding: 4px 12px;
    margin-bottom: 20px;
}

.cf-mkt-h1 {
    font-size: clamp(32px, 5vw, 52px);
    font-weight: 800;
    color: #FFFFFF;
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: 18px;
}

.cf-mkt-h1 em {
    font-style: normal;
    color: var(--cf-orange);
}

.cf-mkt-lead {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.5);
    max-width: 520px;
    line-height: 1.65;
    margin-bottom: 32px;
}

.cf-mkt-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

/* ── 30. Feature grid ───────────────────────────────────────────── */
.cf-feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1px;
    background: var(--cf-border);
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    overflow: hidden;
}

.cf-feature-cell {
    background: var(--cf-surface);
    padding: 28px 24px;
    transition: background 0.15s;
}

.cf-feature-cell:hover {
    background: var(--cf-surface-alt);
}

.cf-feature-icon {
    width: 40px;
    height: 40px;
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--cf-orange);
    margin-bottom: 14px;
    background: var(--cf-orange-light);
}

.cf-feature-title {
    font-size: 14.5px;
    font-weight: 700;
    color: var(--cf-text);
    margin-bottom: 6px;
}

.cf-feature-desc {
    font-size: 13.5px;
    color: var(--cf-text-muted);
    line-height: 1.6;
    margin: 0;
}

/* ── 31. How-it-works steps ─────────────────────────────────────── */
.cf-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    background: var(--cf-border);
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    overflow: hidden;
}

.cf-step {
    background: var(--cf-surface);
    padding: 32px 24px;
    position: relative;
}

.cf-step-num {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--cf-orange);
    border: 1px solid rgba(246, 130, 31, 0.25);
    border-radius: 99px;
    padding: 2px 10px;
    display: inline-block;
    margin-bottom: 14px;
}

.cf-step-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--cf-text);
    margin-bottom: 8px;
}

.cf-step-desc {
    font-size: 13.5px;
    color: var(--cf-text-muted);
    line-height: 1.6;
    margin: 0;
}

.cf-step-arrow {
    position: absolute;
    right: -12px;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    background: var(--cf-surface);
    border: 1px solid var(--cf-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    color: var(--cf-text-faint);
    z-index: 1;
}

.cf-step:last-child .cf-step-arrow {
    display: none;
}

/* ── 32. Trust / stats band ─────────────────────────────────────── */
.cf-trust-band {
    background: var(--cf-surface);
    border-top: 1px solid var(--cf-border);
    border-bottom: 1px solid var(--cf-border);
    padding: 32px 0;
}

.cf-trust-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 0;
    text-align: center;
}

.cf-trust-item {
    padding: 0 24px;
    border-right: 1px solid var(--cf-border);
}

.cf-trust-item:last-child {
    border-right: none;
}

.cf-trust-val {
    font-size: 28px;
    font-weight: 800;
    color: var(--cf-text);
    letter-spacing: -0.04em;
    line-height: 1;
    margin-bottom: 4px;
}

.cf-trust-val span {
    color: var(--cf-orange);
}

.cf-trust-lbl {
    font-size: 12.5px;
    color: var(--cf-text-muted);
}

/* ── 33. Testimonials ───────────────────────────────────────────── */
.cf-testi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.cf-testi-card {
    background: var(--cf-surface);
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    padding: 20px;
    transition: border-color 0.15s;
}

.cf-testi-card:hover {
    border-color: var(--cf-border-strong);
}

.cf-testi-quote {
    font-size: 14px;
    color: var(--cf-text);
    line-height: 1.7;
    margin-bottom: 16px;
}

.cf-testi-quote::before {
    content: '"';
    color: var(--cf-orange);
    font-size: 24px;
    line-height: 0;
    vertical-align: -8px;
    margin-right: 4px;
}

.cf-testi-author {
    display: flex;
    align-items: center;
    gap: 10px;
}

.cf-testi-avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--cf-orange-light);
    border: 1px solid #FED7AA;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    color: var(--cf-orange);
    flex-shrink: 0;
}

.cf-testi-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--cf-text);
}

.cf-testi-role {
    font-size: 12px;
    color: var(--cf-text-muted);
}

/* ── 34. CTA banner ─────────────────────────────────────────────── */
.cf-cta-banner {
    background: var(--cf-nav-bg);
    border: 1px solid #2D2D30;
    border-radius: var(--cf-radius);
    padding: 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cf-cta-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 600px 300px at 50% 100%, rgba(246, 130, 31, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.cf-cta-banner-title {
    font-size: clamp(20px, 3vw, 28px);
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.03em;
    margin-bottom: 10px;
}

.cf-cta-banner-sub {
    font-size: 14.5px;
    color: rgba(255, 255, 255, 0.45);
    margin-bottom: 24px;
}

.cf-cta-banner-actions {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

/* ── 35. About page ─────────────────────────────────────────────── */
.cf-about-hero {
    background: var(--cf-surface);
    border-bottom: 1px solid var(--cf-border);
    padding: 56px 0;
}

.cf-about-section {
    padding: 48px 0;
    border-bottom: 1px solid var(--cf-border);
}

.cf-about-section:last-of-type {
    border-bottom: none;
}

.cf-about-lead {
    font-size: 18px;
    color: var(--cf-text-muted);
    line-height: 1.75;
    max-width: 680px;
}

.cf-value-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.cf-value-item {
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    padding: 20px;
    background: var(--cf-surface);
}

.cf-value-icon {
    font-size: 20px;
    color: var(--cf-orange);
    margin-bottom: 10px;
}

.cf-value-title {
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 4px;
}

.cf-value-desc {
    font-size: 13px;
    color: var(--cf-text-muted);
    line-height: 1.55;
    margin: 0;
}

/* ── 36. Help / FAQ ─────────────────────────────────────────────── */
.cf-help-hero {
    background: var(--cf-surface);
    border-bottom: 1px solid var(--cf-border);
    padding: 48px 0;
}

.cf-faq-item {
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius-sm);
    margin-bottom: 6px;
    overflow: hidden;
}

.cf-faq-trigger {
    width: 100%;
    background: var(--cf-surface);
    border: none;
    padding: 14px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: var(--cf-text);
    text-align: left;
    transition: background 0.1s;
    font-family: inherit;
}

.cf-faq-trigger:hover {
    background: var(--cf-surface-alt);
}

.cf-faq-chevron {
    font-size: 12px;
    color: var(--cf-text-faint);
    transition: transform 0.2s;
    flex-shrink: 0;
}

.cf-faq-item.open .cf-faq-chevron {
    transform: rotate(180deg);
}

.cf-faq-answer {
    display: none;
    padding: 0 18px 16px;
    font-size: 13.5px;
    color: var(--cf-text-muted);
    line-height: 1.7;
    border-top: 1px solid var(--cf-border);
}

.cf-faq-answer p {
    margin: 12px 0 0;
}

.cf-faq-item.open .cf-faq-answer {
    display: block;
}

.cf-help-cat-strip {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.cf-help-cat {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 6px 14px;
    border: 1px solid var(--cf-border);
    border-radius: 99px;
    font-size: 13px;
    color: var(--cf-text-muted);
    text-decoration: none;
    cursor: pointer;
    background: var(--cf-surface);
    transition: all 0.12s;
    font-family: inherit;
    font-weight: 400;
}

.cf-help-cat:hover,
.cf-help-cat.active {
    border-color: var(--cf-orange);
    color: var(--cf-orange);
    background: var(--cf-orange-light);
}

.cf-contact-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
    margin-top: 32px;
}

.cf-contact-option {
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    padding: 20px;
    background: var(--cf-surface);
    text-decoration: none;
    color: var(--cf-text);
    transition: border-color 0.15s;
}

.cf-contact-option:hover {
    border-color: var(--cf-orange);
}

.cf-contact-option-icon {
    font-size: 20px;
    color: var(--cf-orange);
    margin-bottom: 8px;
}

.cf-contact-option-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 3px;
}

.cf-contact-option-desc {
    font-size: 12.5px;
    color: var(--cf-text-muted);
}

/* ── 37. Legal pages (ToS / Privacy) ───────────────────────────── */
.cf-legal-hero {
    background: var(--cf-surface);
    border-bottom: 1px solid var(--cf-border);
    padding: 40px 0;
}

.cf-legal-meta {
    font-size: 12.5px;
    color: var(--cf-text-faint);
    font-family: 'IBM Plex Mono', monospace;
    margin-top: 6px;
}

.cf-legal-body {
    max-width: 720px;
    margin: 0 auto;
    padding: 48px 0;
}

.cf-legal-toc {
    background: var(--cf-surface);
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    padding: 20px 24px;
    margin-bottom: 40px;
}

.cf-legal-toc-title {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--cf-text-faint);
    margin-bottom: 10px;
}

.cf-legal-toc a {
    display: block;
    font-size: 13.5px;
    color: var(--cf-text-muted);
    text-decoration: none;
    padding: 3px 0;
    transition: color 0.12s;
}

.cf-legal-toc a:hover {
    color: var(--cf-orange);
}

.cf-legal-section {
    margin-bottom: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--cf-border);
}

.cf-legal-section:last-child {
    border-bottom: none;
}

.cf-legal-h2 {
    font-size: 17px;
    font-weight: 700;
    color: var(--cf-text);
    letter-spacing: -0.01em;
    margin-bottom: 14px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.cf-legal-h2 .section-num {
    font-size: 11px;
    font-family: 'IBM Plex Mono', monospace;
    color: var(--cf-text-faint);
    font-weight: 400;
    min-width: 28px;
}

.cf-legal-p {
    font-size: 14px;
    line-height: 1.85;
    color: var(--cf-text-muted);
    margin-bottom: 12px;
}

.cf-legal-ul {
    padding-left: 0;
    list-style: none;
    margin-bottom: 12px;
}

.cf-legal-ul li {
    font-size: 14px;
    line-height: 1.75;
    color: var(--cf-text-muted);
    padding: 4px 0 4px 20px;
    position: relative;
}

.cf-legal-ul li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--cf-text-faint);
    font-size: 12px;
}

/* ── 38. Contact page ───────────────────────────────────────────── */
.cf-contact-hero {
    background: var(--cf-surface);
    border-bottom: 1px solid var(--cf-border);
    padding: 48px 0;
}

.cf-contact-form-card {
    background: var(--cf-surface);
    border: 1px solid var(--cf-border);
    border-radius: var(--cf-radius);
    overflow: hidden;
}

.cf-contact-form-head {
    padding: 18px 24px;
    border-bottom: 1px solid var(--cf-border);
    background: var(--cf-surface-alt);
}

/* ── 39. 404 page ───────────────────────────────────────────────── */
.cf-404-wrap {
    min-height: calc(100vh - 57px - 300px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
}

.cf-404-code {
    font-size: clamp(80px, 15vw, 140px);
    font-weight: 800;
    color: var(--cf-border);
    letter-spacing: -0.06em;
    line-height: 1;
    font-family: 'IBM Plex Mono', monospace;
    margin-bottom: 0;
}

.cf-404-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--cf-text);
    margin-bottom: 8px;
}

.cf-404-sub {
    font-size: 14px;
    color: var(--cf-text-muted);
    margin-bottom: 24px;
}

/* ── 40. Responsive public ──────────────────────────────────────── */
@media (max-width: 991px) {
    .cf-steps {
        grid-template-columns: 1fr;
    }

    .cf-step-arrow {
        display: none;
    }
}

@media (max-width: 768px) {
    .cf-mkt-hero {
        padding: 52px 0 44px;
    }

    .cf-pub-nav-links {
        display: none;
    }

    .cf-pub-nav-links.mobile-open {
        display: flex;
        flex-direction: column;
        height: auto;
        position: absolute;
        top: 56px;
        left: 0;
        right: 0;
        background: var(--cf-surface);
        border-bottom: 1px solid var(--cf-border);
        padding: 12px 0;
        z-index: 1020;
    }

    .cf-pub-nav-link {
        height: auto;
        padding: 10px 24px;
        border-bottom: none;
    }

    .cf-trust-grid {
        grid-template-columns: repeat(2, 1fr);
        row-gap: 24px;
    }

    .cf-trust-item:nth-child(2n) {
        border-right: none;
    }

    .cf-trust-item {
        border-right: 1px solid var(--cf-border);
        border-bottom: 1px solid var(--cf-border);
        padding: 16px;
    }

    .cf-pub-footer {
        padding: 36px 0 0;
    }
}

@media (max-width: 480px) {
    .cf-mkt-h1 {
        font-size: 28px;
    }

    .cf-cta-banner {
        padding: 28px 20px;
    }

    .cf-cta-banner-title {
        font-size: 20px;
    }
}

/* ── 41. Modals ─────────────────────────────────────────────────── */
.cf-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1050;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.cf-modal.cf-modal-backdrop::before {
    content: '';
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: -1;
}

.cf-modal-dialog {
    background: var(--cf-surface);
    border: 1px solid var(--cf-border);
    border-radius: 10px;
    width: 100%;
    max-width: 600px;
    overflow: hidden;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.28);
    animation: cf-modal-in 0.2s ease;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

/* Modal sizes */
.cf-modal-dialog.cf-modal-sm {
    max-width: 400px;
}

.cf-modal-dialog.cf-modal-md {
    max-width: 600px;
}

.cf-modal-dialog.cf-modal-lg {
    max-width: 800px;
}

.cf-modal-dialog.cf-modal-xl {
    max-width: 1000px;
}

.cf-modal-dialog.cf-modal-fullscreen {
    max-width: 100%;
    height: 100vh;
    border-radius: 0;
    margin: 0;
}

/* Modal dialog centered */
.cf-modal-dialog.cf-modal-dialog-centered {
    display: flex;
    align-items: center;
    min-height: calc(100% - 32px);
}

/* Modal dialog scrollable */
.cf-modal-dialog.cf-modal-dialog-scrollable {
    max-height: calc(100vh - 32px);
    display: flex;
    flex-direction: column;
}

.cf-modal-dialog.cf-modal-dialog-scrollable .cf-modal-body {
    overflow-y: auto;
    flex: 1;
}

/* Responsive fullscreen modals */
@media (max-width: 576px) {
    .cf-modal-dialog.cf-modal-fullscreen-sm-down {
        max-width: 100%;
        height: 100vh;
        border-radius: 0;
        margin: 0;
    }
}

@media (max-width: 768px) {
    .cf-modal-dialog.cf-modal-fullscreen-md-down {
        max-width: 100%;
        height: 100vh;
        border-radius: 0;
        margin: 0;
    }
}

@media (max-width: 992px) {
    .cf-modal-dialog.cf-modal-fullscreen-lg-down {
        max-width: 100%;
        height: 100vh;
        border-radius: 0;
        margin: 0;
    }
}

@media (max-width: 1200px) {
    .cf-modal-dialog.cf-modal-fullscreen-xl-down {
        max-width: 100%;
        height: 100vh;
        border-radius: 0;
        margin: 0;
    }
}

@keyframes cf-modal-in {
    from {
        opacity: 0;
        transform: scale(1.04) translateY(8px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.cf-modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--cf-border);
    background: var(--cf-surface-alt);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.cf-modal-header h5 {
    font-size: 15px;
    font-weight: 600;
    color: var(--cf-text);
    margin: 0;
}

.cf-modal-body {
    padding: 20px;
    max-height: calc(100vh - 200px);
    overflow-y: auto;
}

.cf-modal-footer {
    padding: 14px 20px;
    border-top: 1px solid var(--cf-border);
    background: var(--cf-surface-alt);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
}

.cf-modal-close {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: transparent;
    border: 1px solid var(--cf-border);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--cf-text-muted);
    font-size: 16px;
    flex-shrink: 0;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.cf-modal-close:hover {
    background: var(--cf-danger-bg);
    color: var(--cf-danger);
    border-color: #FCA5A5;
}

.cf-modal-close-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--cf-bg);
    border: 1px solid var(--cf-border);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--cf-text-muted);
    font-size: 14px;
    flex-shrink: 0;
    transition: background 0.15s, color 0.15s;
}

.cf-modal-close-btn:hover {
    background: var(--cf-danger-bg);
    color: var(--cf-danger);
    border-color: #FCA5A5;
}

/* Drop zone drag-over state */
.cf-drop-zone.drag-over {
    border-color: var(--cf-orange);
    background: var(--cf-orange-light);
}

/* ── 42. Modal shake (dirty-form guard feedback) ────────────────── */
@keyframes cf-modal-shake {
    0%, 100% {
        transform: translateX(0);
    }
    15% {
        transform: translateX(-6px);
    }
    30% {
        transform: translateX(6px);
    }
    45% {
        transform: translateX(-4px);
    }
    60% {
        transform: translateX(4px);
    }
    75% {
        transform: translateX(-2px);
    }
    90% {
        transform: translateX(2px);
    }
}

.cf-modal-shake {
    animation: cf-modal-shake 0.4s ease;
}

/* ── 43. Alert / Info Cards (documentation style) ──────────────── */
.cf-alert {
    padding: 14px 16px;
    border-radius: var(--cf-radius-sm);
    border: 1px solid;
    font-size: 13.5px;
    line-height: 1.6;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.cf-alert-icon {
    font-size: 16px;
    flex-shrink: 0;
    margin-top: 1px;
}

.cf-alert-content {
    flex: 1;
}

.cf-alert-title {
    font-weight: 600;
    margin-bottom: 2px;
}

.cf-alert-text {
    margin: 0;
}

.cf-alert-info {
    background: var(--cf-info-bg);
    border-color: #7DD3FC;
    color: #0C4A6E;
}

.cf-alert-info .cf-alert-icon {
    color: var(--cf-info);
}

.cf-alert-warning {
    background: var(--cf-warning-bg);
    border-color: #FCD34D;
    color: #92400E;
}

.cf-alert-warning .cf-alert-icon {
    color: var(--cf-warning);
}

.cf-alert-success {
    background: var(--cf-success-bg);
    border-color: #86EFAC;
    color: #15803D;
}

.cf-alert-success .cf-alert-icon {
    color: var(--cf-success);
}

.cf-alert-danger {
    background: var(--cf-danger-bg);
    border-color: #FCA5A5;
    color: #991B1B;
}

.cf-alert-danger .cf-alert-icon {
    color: var(--cf-danger);
}

/* Info box variant (non-dismissible documentation cards) */
.cf-info-box {
    padding: 14px 16px;
    border-radius: var(--cf-radius-sm);
    border: 1px solid;
    font-size: 13.5px;
    line-height: 1.6;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.cf-info-box-icon {
    font-size: 16px;
    flex-shrink: 0;
    margin-top: 1px;
}

.cf-info-box-content {
    flex: 1;
}

.cf-info-box-title {
    font-weight: 600;
    margin-bottom: 6px;
    font-size: 14px;
}

.cf-info-box-text {
    margin: 0;
}

.cf-info-box-info {
    background: var(--cf-info-bg);
    border-color: #7DD3FC;
    color: #0C4A6E;
}

.cf-info-box-info .cf-info-box-icon {
    color: var(--cf-info);
}

.cf-info-box-warning {
    background: var(--cf-warning-bg);
    border-color: #FCD34D;
    color: #92400E;
}

.cf-info-box-warning .cf-info-box-icon {
    color: var(--cf-warning);
}

.cf-info-box-success {
    background: var(--cf-success-bg);
    border-color: #86EFAC;
    color: #15803D;
}

.cf-info-box-success .cf-info-box-icon {
    color: var(--cf-success);
}

.cf-info-box-danger {
    background: var(--cf-danger-bg);
    border-color: #FCA5A5;
    color: #991B1B;
}

.cf-info-box-danger .cf-info-box-icon {
    color: var(--cf-danger);
}

/*-- 43. modal fade -------------*/
.modal.fade .modal-dialog {
    transform: scale(0.8);
    transition: transform 0.2s ease;
}

.modal.show .modal-dialog {
    transform: scale(1);
}