/**
 * Click Academy - Common Design System & Theme Styles
 * Colors & Brand identity derived from the official Click Academy 3D Logo
 */

@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@400;500;600;700;800;900&family=Plus+Jakarta+Sans:wght@500;600;700;800&display=swap');

/* ==========================================================================
   1. Design System Tokens & CSS Variables
   ========================================================================== */
:root {
    /* Brand Palette */
    --brand-primary: #0070f5;
    --brand-primary-hover: #0056c7;
    --brand-primary-dark: #081a3a;
    --brand-primary-light: #edf5ff;
    --brand-cyan: #00d2ff;
    --brand-cyan-light: #e0f9ff;
    --brand-cyan-glow: rgba(0, 210, 255, 0.45);
    --brand-sapphire: #0d3b82;
    --brand-accent: #f59e0b;
    --brand-accent-light: #fef3c7;
    --brand-purple: #6366f1;
    --brand-purple-light: #eef2ff;
    --brand-rose: #f43f5e;
    --brand-rose-light: #fff1f2;
    --brand-emerald: #10b981;
    --brand-emerald-light: #ecfdf5;

    /* Surfaces & Neutrals */
    --bg-body: #f4f8fc;
    --surface-card: #ffffff;
    --surface-card-alt: #f0f4f9;
    --border-subtle: #e2e8f0;
    --border-primary: rgba(0, 112, 245, 0.25);
    --text-heading: #091429;
    --text-body: #334155;
    --text-muted: #64748b;

    /* Shadows & Elevations */
    --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 4px 8px -1px rgba(9, 20, 41, 0.06), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 12px 20px -3px rgba(9, 20, 41, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 20px 28px -6px rgba(0, 112, 245, 0.15), 0 10px 12px -5px rgba(9, 20, 41, 0.04);
    --shadow-card-hover: 0 24px 38px -8px rgba(0, 112, 245, 0.22), 0 8px 16px -4px rgba(9, 20, 41, 0.06);

    /* Radii */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 22px;
    --radius-full: 9999px;

    /* Animation & Transitions */
    --transition-smooth: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Global RTL & Scrollbar */
html {
    scrollbar-color: var(--brand-primary) #e2edfb;
    scrollbar-width: thin;
}

html::-webkit-scrollbar {
    width: 8px;
}

html::-webkit-scrollbar-track {
    background: #e2edfb;
}

html::-webkit-scrollbar-thumb {
    background: var(--brand-primary);
    border-radius: var(--radius-full);
}

/* ==========================================================================
   2. Keyframe Animations
   ========================================================================== */
@keyframes spin-orbit {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes pulse-glow {
    0%, 100% { transform: scale(1); opacity: 0.8; }
    50% { transform: scale(1.15); opacity: 1; }
}

@keyframes logo-float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@keyframes pulse-dot {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.35); opacity: 0.6; }
}

@keyframes pulse-loading {
    0%, 100% { opacity: 0.7; }
    50% { opacity: 1; }
}

@keyframes slide-down {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   2.5 Global Top Navigation (.navbar & .click-brand)
   ========================================================================== */
.navbar {
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(0, 112, 245, 0.09) !important;
    box-shadow: 0 4px 20px rgba(9, 20, 41, 0.04) !important;
    padding: 10px 0 !important;
    font-family: 'Cairo', 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    position: sticky;
    top: 0;
    z-index: 1020;
}

.navbar-brand.click-brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    padding: 2px 0;
    transition: transform 0.25s ease;
}

.navbar-brand.click-brand:hover {
    transform: scale(1.02);
}

.click-brand-logo-wrap {
    width: 42px;
    height: 42px;
    background: linear-gradient(135deg, #050b17 0%, #0d285c 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 14px rgba(0, 112, 245, 0.25);
    border: 1px solid rgba(0, 210, 255, 0.35);
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
}

.click-brand-mark {
    width: 32px;
    height: 32px;
    object-fit: contain;
    mix-blend-mode: screen;
    display: block;
}

.click-brand-text {
    font-size: 19px;
    font-weight: 900;
    background: linear-gradient(135deg, #091429 0%, #0070f5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.3px;
}

.navbar-nav .nav-link {
    color: #334155 !important;
    font-weight: 700;
    font-size: 14.5px;
    padding: 8px 14px !important;
    border-radius: 8px;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
}

.navbar-nav .nav-link:hover {
    color: #0070f5 !important;
}

.navbar-nav .nav-item.active .nav-link {
    color: #0070f5 !important;
    font-weight: 800;
}

#navbarDropdown {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 112, 245, 0.06);
    border: 1px solid rgba(0, 112, 245, 0.16);
    border-radius: 30px;
    padding: 6px 16px !important;
    color: #091429 !important;
    font-weight: 800;
    font-size: 13.5px;
    transition: all 0.2s ease;
}

#navbarDropdown:hover {
    background: rgba(0, 112, 245, 0.12);
    border-color: rgba(0, 112, 245, 0.3);
}

.navbar .dropdown-menu {
    border: 1px solid rgba(0, 112, 245, 0.12);
    border-radius: 14px;
    box-shadow: 0 14px 34px rgba(9, 20, 41, 0.12);
    padding: 8px;
    animation: slide-down 0.2s ease;
}

.navbar .dropdown-item {
    border-radius: 8px;
    font-size: 13.5px;
    font-weight: 700;
    color: #334155;
    padding: 8px 14px;
    transition: all 0.18s ease;
    text-align: right;
}

.navbar .dropdown-item:hover {
    background: #edf5ff;
    color: #0070f5;
}

.navbar-toggler {
    border: 1px solid rgba(0, 112, 245, 0.2);
    border-radius: 10px;
    padding: 6px 10px;
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 3px rgba(0, 112, 245, 0.2);
}

/* ==========================================================================
   3. Homepage & Courses Market Styles (.site-home)
   ========================================================================== */
.site-home {
    background-color: var(--bg-body);
    color: var(--text-body);
    direction: rtl;
    font-family: 'Cairo', 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    min-height: calc(100vh - 65px);
    text-align: right;
    position: relative;
    overflow-x: hidden;
}

.site-home *,
.site-home *::before,
.site-home *::after {
    box-sizing: border-box;
}

/* Hero Banner Section */
.hero-section {
    background: linear-gradient(135deg, #050b17 0%, #091734 45%, #0d2a5e 80%, #0a3d82 100%);
    position: relative;
    padding: 56px 0 68px;
    color: #ffffff;
    overflow: hidden;
    border-bottom: 1px solid rgba(0, 210, 255, 0.15);
}

.hero-glow-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    pointer-events: none;
    opacity: 0.45;
}

.hero-glow-blob-1 {
    width: 420px;
    height: 420px;
    background: #00d2ff;
    top: -140px;
    left: -100px;
    opacity: 0.35;
}

.hero-glow-blob-2 {
    width: 380px;
    height: 380px;
    background: #0056ff;
    bottom: -120px;
    right: -80px;
    opacity: 0.4;
}

.hero-glow-blob-3 {
    width: 250px;
    height: 250px;
    background: #38bdf8;
    top: 40%;
    left: 35%;
    opacity: 0.18;
}

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

.hero-grid {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 48px;
    align-items: center;
}

.hero-content {
    text-align: right;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(0, 210, 255, 0.1);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(0, 210, 255, 0.35);
    padding: 7px 18px;
    border-radius: var(--radius-full);
    font-size: 13.5px;
    font-weight: 700;
    color: #7dd3fc;
    margin-bottom: 22px;
    box-shadow: 0 4px 18px rgba(0, 210, 255, 0.15);
}

.hero-badge-dot {
    width: 8px;
    height: 8px;
    background: #00d2ff;
    border-radius: 50%;
    box-shadow: 0 0 12px #00d2ff;
    animation: pulse-dot 2s infinite ease-in-out;
}

.hero-title {
    font-size: 42px;
    font-weight: 900;
    line-height: 1.3;
    letter-spacing: -0.5px;
    margin-bottom: 16px;
    color: #ffffff;
}

.hero-title-highlight {
    background: linear-gradient(120deg, #67e8f9 0%, #38bdf8 50%, #ffffff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 30px rgba(0, 210, 255, 0.3);
}

.hero-subtitle {
    font-size: 18px;
    font-weight: 500;
    line-height: 1.75;
    color: #cbd5e1;
    max-width: 650px;
    margin: 0 0 28px;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.hero-feature-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(0, 210, 255, 0.22);
    backdrop-filter: blur(8px);
    padding: 8px 18px;
    border-radius: var(--radius-full);
    font-size: 13.5px;
    font-weight: 600;
    color: #f1f5f9;
    transition: var(--transition-smooth);
}

.hero-feature-item:hover {
    background: rgba(0, 210, 255, 0.18);
    border-color: rgba(0, 210, 255, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 4px 14px rgba(0, 210, 255, 0.2);
}

.hero-feature-item .feature-icon {
    font-size: 16px;
}

/* Hero Visual with 3D Logo */
.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.hero-logo-frame {
    position: relative;
    width: 240px;
    height: 240px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-logo-orbit {
    position: absolute;
    inset: -20px;
    border-radius: 50%;
    border: 1px dashed rgba(0, 210, 255, 0.35);
    animation: spin-orbit 24s linear infinite;
}

.hero-logo-glow {
    position: absolute;
    width: 190px;
    height: 190px;
    background: radial-gradient(circle, rgba(0, 180, 255, 0.45) 0%, rgba(0, 100, 255, 0.15) 60%, transparent 80%);
    border-radius: 50%;
    filter: blur(25px);
    animation: pulse-glow 3s infinite ease-in-out;
}

.hero-logo-img {
    width: 190px;
    height: 190px;
    object-fit: contain;
    position: relative;
    z-index: 2;
    filter: drop-shadow(0 10px 25px rgba(0, 150, 255, 0.4));
    animation: logo-float 4s ease-in-out infinite;
}

/* Courses Section */
.courses-section {
    padding: 44px 0 64px;
}

.section-header-wrap {
    margin-bottom: 30px;
    text-align: center;
}

.section-tagline {
    color: var(--brand-primary);
    font-size: 13.5px;
    font-weight: 800;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: 6px;
    display: inline-block;
    background: var(--brand-primary-light);
    padding: 3px 12px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(0, 112, 245, 0.18);
}

.site-home .section-title {
    color: var(--text-heading);
    font-size: 32px;
    font-weight: 900;
    letter-spacing: -0.5px;
    margin-bottom: 8px;
}

.section-desc {
    color: var(--text-muted);
    font-size: 16px;
    max-width: 580px;
    margin: 0 auto;
}

/* Discovery & Filter Bar */
.course-discovery {
    background: var(--surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    padding: 16px 20px;
    margin-bottom: 34px;
    transition: var(--transition-smooth);
}

.course-discovery:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border-primary);
}

.course-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.course-search {
    flex: 1;
    min-width: 260px;
    position: relative;
    display: flex;
    align-items: center;
}

.course-search svg {
    position: absolute;
    right: 16px;
    width: 20px;
    height: 20px;
    color: var(--text-muted);
    pointer-events: none;
    stroke-width: 2;
}

.course-search .filter-control {
    width: 100%;
    height: 48px;
    padding: 0 46px 0 16px;
    background: var(--surface-card-alt);
    border: 1.5px solid transparent;
    border-radius: var(--radius-lg);
    font-size: 14.5px;
    font-weight: 600;
    color: var(--text-heading);
    transition: var(--transition-smooth);
    font-family: inherit;
}

.course-search .filter-control:focus {
    background: #ffffff;
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 4px rgba(0, 112, 245, 0.12);
    outline: none;
}

.course-search .filter-control::placeholder {
    color: #94a3b8;
    font-weight: 500;
}

.btn-filter-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    height: 48px;
    padding: 0 18px;
    background: var(--surface-card-alt);
    border: 1.5px solid transparent;
    border-radius: var(--radius-lg);
    color: var(--text-heading);
    font-size: 14.5px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-smooth);
    font-family: inherit;
}

.btn-filter-toggle:hover {
    background: var(--brand-primary-light);
    color: var(--brand-primary);
    border-color: rgba(0, 112, 245, 0.2);
}

.btn-filter-toggle.is-active {
    background: var(--brand-primary);
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(0, 112, 245, 0.35);
}

.btn-filter-toggle svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
}

.filter-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 22px;
    height: 22px;
    padding: 0 6px;
    background: #ffffff;
    color: var(--brand-primary);
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 800;
}

.btn-filter-toggle:not(.is-active) .filter-count {
    background: var(--brand-primary);
    color: #ffffff;
}

.btn-filter-reset {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 48px;
    padding: 0 16px;
    background: #fee2e2;
    border: 1.5px solid transparent;
    border-radius: var(--radius-lg);
    color: #dc2626;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition-smooth);
    font-family: inherit;
}

.btn-filter-reset:hover {
    background: #fecaca;
    color: #b91c1c;
    transform: translateY(-1px);
}

.btn-filter-reset svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    transition: transform 0.3s ease;
}

.btn-filter-reset:hover svg {
    transform: rotate(-180deg);
}

/* Filter Panel */
.filter-panel {
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid var(--border-subtle);
    animation: slide-down 0.22s ease-out;
}

.filter-panel-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    align-items: flex-end;
}

.filter-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.filter-field label {
    font-size: 13.5px;
    font-weight: 700;
    color: var(--text-heading);
    margin: 0;
}

.filter-field select.filter-control {
    height: 44px;
    padding: 0 14px;
    background-color: var(--surface-card-alt);
    border: 1.5px solid transparent;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-heading);
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.filter-field select.filter-control:focus {
    background-color: #ffffff;
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px rgba(0, 112, 245, 0.14);
    outline: none;
}

.filter-check {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    height: 44px;
    padding: 0 14px;
    background: var(--surface-card-alt);
    border: 1.5px solid transparent;
    border-radius: var(--radius-md);
    margin: 0;
    user-select: none;
    transition: var(--transition-smooth);
}

.filter-check:hover {
    background: var(--brand-primary-light);
    border-color: rgba(0, 112, 245, 0.2);
}

.filter-check input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--brand-primary);
    cursor: pointer;
    margin: 0;
}

.filter-check span {
    font-size: 13.5px;
    font-weight: 700;
    color: var(--text-heading);
}

.filter-chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px dashed var(--border-subtle);
}

.filter-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--brand-primary-light);
    color: var(--brand-primary-hover);
    border: 1px solid rgba(0, 112, 245, 0.22);
    padding: 4px 12px;
    border-radius: var(--radius-full);
    font-size: 12.5px;
    font-weight: 700;
}

.filter-summary-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid var(--border-subtle);
}

.filter-summary {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    margin: 0;
}

.course-loading {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--brand-cyan-light);
    color: #0369a1;
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 700;
    animation: pulse-loading 1.2s infinite ease-in-out;
}

/* Course Cards */
.site-home .row {
    direction: rtl;
}

.course-grid {
    row-gap: 26px;
    transition: opacity 0.25s ease;
}

.course-card {
    background: var(--surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow-xs);
    transition: var(--transition-smooth);
}

.course-card:hover {
    border-color: var(--border-primary);
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-6px);
}

.course-card.is-free-card {
    border-color: rgba(0, 210, 255, 0.35);
}

.course-card.is-enrolled-card {
    border-color: rgba(0, 112, 245, 0.35);
}

.course-media {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    min-height: 160px;
    background: linear-gradient(135deg, #091734 0%, #0d2a5e 60%, #0070f5 100%);
    overflow: hidden;
}

.course-thumb-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.course-card:hover .course-thumb-img {
    transform: scale(1.06);
}

.course-media-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(6, 12, 24, 0.25) 0%, transparent 40%, rgba(6, 12, 24, 0.4) 100%);
    pointer-events: none;
}

.course-fallback {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #071329 0%, #0c2759 60%, #0070f5 100%);
    color: #ffffff;
    position: relative;
    overflow: hidden;
}

.fallback-glow {
    position: absolute;
    width: 140px;
    height: 140px;
    background: rgba(0, 210, 255, 0.3);
    border-radius: 50%;
    filter: blur(30px);
}

.course-fallback svg {
    width: 48px;
    height: 48px;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.8;
    position: relative;
    z-index: 1;
}

.course-badges-top {
    position: absolute;
    top: 12px;
    left: 12px;
    right: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    z-index: 3;
    pointer-events: none;
}

.badge-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 800;
    backdrop-filter: blur(8px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    letter-spacing: 0.2px;
}

.badge-pill-free {
    background: linear-gradient(135deg, #0284c7, #00b4d8);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.35);
}

.badge-pill-price {
    background: rgba(8, 18, 38, 0.88);
    color: #67e8f9;
    border: 1px solid rgba(0, 210, 255, 0.3);
}

.badge-pill-stage {
    background: rgba(255, 255, 255, 0.94);
    color: var(--text-heading);
    border: 1px solid rgba(0, 0, 0, 0.08);
    margin-right: auto;
}

.pulse-dot {
    width: 6px;
    height: 6px;
    background: #00d2ff;
    border-radius: 50%;
    box-shadow: 0 0 8px #00d2ff;
}

.course-body {
    padding: 18px 18px 16px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.course-meta-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 8px;
    min-height: 20px;
}

.course-tag {
    font-size: 11.5px;
    font-weight: 700;
    color: var(--brand-primary);
    background: var(--brand-primary-light);
    padding: 2px 8px;
    border-radius: 6px;
}

.course-title {
    color: var(--text-heading);
    font-size: 17px;
    font-weight: 800;
    line-height: 1.4;
    margin: 0 0 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 48px;
    transition: color 0.2s ease;
}

.course-card:hover .course-title {
    color: var(--brand-primary);
}

.course-instructor {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border-subtle);
}

.instructor-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, #e0f2fe, #bae6fd);
    color: var(--brand-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 13px;
    flex-shrink: 0;
    border: 1px solid rgba(0, 112, 245, 0.25);
}

.instructor-info {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.instructor-label {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 600;
    line-height: 1;
    margin-bottom: 3px;
}

.instructor-name {
    font-size: 13.5px;
    font-weight: 700;
    color: var(--text-body);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.course-footer {
    margin-top: auto;
}

.course-action-form {
    margin: 0;
}

.btn-course-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    height: 44px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 800;
    text-decoration: none;
    cursor: pointer;
    border: 0;
    transition: var(--transition-smooth);
    font-family: inherit;
}

.btn-subscribe {
    background: linear-gradient(135deg, #0056cc 0%, #0070f5 60%, #00a3ff 100%);
    color: #ffffff !important;
    box-shadow: 0 4px 15px rgba(0, 112, 245, 0.3);
}

.btn-subscribe:hover {
    background: linear-gradient(135deg, #0045a8 0%, #005ec7 60%, #0087db 100%);
    box-shadow: 0 6px 20px rgba(0, 112, 245, 0.45);
    transform: translateY(-2px);
    color: #ffffff !important;
}

.btn-free {
    background: linear-gradient(135deg, #0284c7 0%, #00b4d8 100%);
    color: #ffffff !important;
    box-shadow: 0 4px 14px rgba(2, 132, 199, 0.3);
}

.btn-free:hover {
    background: linear-gradient(135deg, #0369a1 0%, #0284c7 100%);
    box-shadow: 0 6px 18px rgba(2, 132, 199, 0.45);
    transform: translateY(-2px);
    color: #ffffff !important;
}

.btn-enrolled {
    background: #eff6ff;
    color: #0070f5 !important;
    border: 1.5px solid #bfdbfe;
}

.btn-enrolled:hover {
    background: #0070f5;
    color: #ffffff !important;
    border-color: #0070f5;
    box-shadow: 0 4px 14px rgba(0, 112, 245, 0.35);
    transform: translateY(-2px);
}

.btn-course-action svg {
    width: 17px;
    height: 17px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2.2;
    flex-shrink: 0;
}

.action-arrow {
    font-size: 16px;
    transition: transform 0.2s ease;
}

.btn-course-action:hover .action-arrow {
    transform: translateX(-4px);
}

.course-status-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    height: 44px;
    border-radius: var(--radius-md);
    font-size: 13.5px;
    font-weight: 700;
}

.status-pending {
    background: #fef3c7;
    color: #92400e;
    border: 1px solid #fde68a;
}

.status-pending svg {
    width: 17px;
    height: 17px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2.2;
}

.status-rejected {
    background: #fee2e2;
    color: #b91c1c;
    border: 1px solid #fecaca;
}

.status-rejected svg {
    width: 17px;
    height: 17px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2.2;
}

/* Pagination */
.course-pagination {
    display: flex;
    justify-content: center;
    margin-top: 44px;
}

.course-pagination .pagination {
    display: flex;
    gap: 6px;
    padding: 8px 12px;
    background: #ffffff;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-sm);
}

.course-pagination .page-item .page-link {
    border: 0;
    border-radius: var(--radius-full);
    color: var(--text-body);
    font-weight: 700;
    font-size: 14px;
    padding: 6px 14px;
    transition: var(--transition-smooth);
}

.course-pagination .page-item.active .page-link {
    background: var(--brand-primary);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(0, 112, 245, 0.35);
}

.course-pagination .page-item .page-link:hover {
    background: var(--brand-primary-light);
    color: var(--brand-primary);
}

/* Empty State */
.empty-courses-card {
    background: #ffffff;
    border: 1px dashed #cbd5e1;
    border-radius: var(--radius-xl);
    padding: 56px 24px;
    text-align: center;
    max-width: 580px;
    margin: 20px auto;
}

.empty-courses-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--brand-primary-light);
    color: var(--brand-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
}

.empty-courses-icon svg {
    width: 32px;
    height: 32px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
}

.empty-courses-card h3 {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-heading);
    margin-bottom: 8px;
}

.empty-courses-card p {
    color: var(--text-muted);
    font-size: 15px;
    margin-bottom: 22px;
}

/* Floating Scroll Top Button */
.scroll-top-button {
    position: fixed;
    bottom: 28px;
    left: 28px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--brand-primary), #00b4d8);
    color: #ffffff;
    border: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(0, 112, 245, 0.4);
    cursor: pointer;
    z-index: 99;
    transition: var(--transition-smooth);
}

.scroll-top-button:hover {
    background: linear-gradient(135deg, var(--brand-primary-hover), var(--brand-primary));
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 10px 28px rgba(0, 112, 245, 0.55);
}

.scroll-top-button svg {
    width: 22px;
    height: 22px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2.5;
}

.scroll-top-button span {
    display: none;
}

/* ==========================================================================
   4. Student Dashboard Styles (/my-courses)
   ========================================================================== */
.student-dashboard {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 28px;
    padding: 34px 0 60px;
    align-items: start;
}

.student-main {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.student-sidebar {
    background: #ffffff;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 24px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.student-profile-mini {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px;
    background: linear-gradient(135deg, var(--brand-primary-light), #f0f9ff);
    border: 1px solid rgba(0, 112, 245, 0.2);
    border-radius: var(--radius-lg);
    margin-bottom: 12px;
}

.student-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0056cc, #00d2ff);
    color: #ffffff;
    font-size: 20px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 14px rgba(0, 112, 245, 0.35);
    flex-shrink: 0;
}

.student-profile-info strong {
    display: block;
    color: var(--text-heading);
    font-size: 16px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 4px;
}

.student-profile-info span {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    color: var(--brand-primary);
    background: #ffffff;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(0, 112, 245, 0.2);
}

.sidebar-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 15px;
    font-weight: 700;
    color: var(--text-body);
    background: transparent;
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition-smooth);
    text-decoration: none;
    font-family: inherit;
    width: 100%;
}

.sidebar-link:hover {
    background: var(--surface-card-alt);
    color: var(--brand-primary);
}

.sidebar-link.active {
    background: var(--brand-primary-light);
    color: var(--brand-primary);
    border-color: rgba(0, 112, 245, 0.25);
    font-weight: 800;
}

.sidebar-link svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    order: -1;
}

.sidebar-link-logout {
    margin-top: 14px;
    border-top: 1px solid var(--border-subtle);
    padding-top: 14px;
    color: #dc2626 !important;
}

.sidebar-link-logout:hover {
    background: #fee2e2 !important;
    color: #b91c1c !important;
}

.student-hero {
    background: linear-gradient(135deg, #071329 0%, #0b2454 50%, #0070f5 100%);
    border-radius: var(--radius-xl);
    padding: 28px 32px;
    color: #ffffff;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.student-hero h1 {
    font-size: 26px;
    font-weight: 900;
    margin: 0 0 8px;
    color: #ffffff;
}

.student-hero p {
    font-size: 15px;
    color: #bae6fd;
    margin: 0;
    max-width: 600px;
    line-height: 1.6;
}

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

.student-stat {
    background: #ffffff;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 18px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow-xs);
    transition: var(--transition-smooth);
}

.student-stat:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--border-primary);
}

.student-stat-data strong {
    display: block;
    font-size: 26px;
    font-weight: 900;
    color: var(--text-heading);
    line-height: 1.1;
    margin-bottom: 4px;
}

.student-stat-data span {
    font-size: 13.5px;
    font-weight: 700;
    color: var(--text-muted);
}

.student-stat-icon {
    width: 46px;
    height: 46px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-icon-blue {
    background: var(--brand-primary-light);
    color: var(--brand-primary);
}

.stat-icon-cyan {
    background: var(--brand-cyan-light);
    color: #0284c7;
}

.stat-icon-indigo {
    background: var(--brand-purple-light);
    color: var(--brand-purple);
}

.student-stat-icon svg {
    width: 24px;
    height: 24px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
}

.student-panel {
    background: #ffffff;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 26px;
    box-shadow: var(--shadow-xs);
}

.student-panel-head {
    margin-bottom: 22px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.student-panel-head h2 {
    font-size: 22px;
    font-weight: 900;
    color: var(--text-heading);
    margin: 0;
}

.student-teacher-list {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.student-teacher-block {
    background: var(--surface-card-alt);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 20px;
}

.student-teacher-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.teacher-badge-info strong {
    display: block;
    font-size: 18px;
    font-weight: 900;
    color: var(--text-heading);
}

.teacher-badge-info span {
    font-size: 12.5px;
    font-weight: 700;
    color: var(--brand-primary);
}

.teacher-meta-note {
    font-size: 12.5px;
    color: var(--text-muted);
    font-weight: 600;
}

.student-course-hub-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.student-course-hub {
    background: #ffffff;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 18px;
    box-shadow: var(--shadow-xs);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
}

.student-course-hub:hover {
    border-color: var(--border-primary);
    box-shadow: var(--shadow-md);
}

.student-course-hub-top {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 16px;
}

.student-course-hub-media {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: linear-gradient(135deg, #091734, #0070f5);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.student-course-hub-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.student-course-hub-fallback {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
}

.student-course-hub-fallback svg {
    width: 28px;
    height: 28px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
}

.student-course-hub-info h3 {
    font-size: 16.5px;
    font-weight: 800;
    color: var(--text-heading);
    margin: 0 0 4px;
    line-height: 1.3;
}

.student-course-hub-info p {
    font-size: 13px;
    color: var(--text-muted);
    margin: 0;
    font-weight: 600;
}

.student-resource-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 14px;
}

.student-resource-card {
    background: var(--surface-card-alt);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-smooth);
    font-family: inherit;
    text-align: right;
}

.student-resource-card:hover {
    background: #ffffff;
    border-color: var(--brand-primary);
    box-shadow: 0 4px 12px rgba(0, 112, 245, 0.15);
    transform: translateY(-2px);
}

.student-resource-card strong {
    font-size: 18px;
    font-weight: 900;
    color: var(--brand-primary);
    line-height: 1.1;
}

.student-resource-card span {
    font-size: 13px;
    font-weight: 800;
    color: var(--text-heading);
    margin: 2px 0 1px;
}

.student-resource-card small {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 600;
}

.student-course-videos {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding-top: 12px;
    border-top: 1px solid var(--border-subtle);
    margin-top: auto;
}

.student-course-video-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    background: #f8fafc;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-heading);
    font-size: 13px;
    font-weight: 700;
    transition: var(--transition-smooth);
    border: 0;
    cursor: pointer;
    font-family: inherit;
    width: 100%;
}

.student-course-video-link:hover {
    background: var(--brand-primary-light);
    color: var(--brand-primary);
}

.student-course-video-link small {
    font-size: 11.5px;
    font-weight: 700;
    background: rgba(0, 112, 245, 0.12);
    color: var(--brand-primary);
    padding: 2px 8px;
    border-radius: var(--radius-full);
}

.student-video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
}

.student-video-card {
    background: #ffffff;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    box-shadow: var(--shadow-xs);
    transition: var(--transition-smooth);
}

.student-video-card:hover {
    border-color: var(--border-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.student-video-thumb {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: #091734;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.student-video-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.student-video-card:hover .student-video-thumb img {
    transform: scale(1.06);
}

.student-video-thumb svg {
    width: 42px;
    height: 42px;
    fill: #ffffff;
}

.student-video-play-pill {
    position: absolute;
    background: rgba(0, 112, 245, 0.92);
    backdrop-filter: blur(8px);
    color: #ffffff;
    padding: 5px 12px;
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 800;
    transition: var(--transition-smooth);
}

.student-video-card:hover .student-video-play-pill {
    background: var(--brand-primary);
    transform: scale(1.08);
    box-shadow: 0 4px 14px rgba(0, 112, 245, 0.5);
}

.student-video-info {
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.student-video-info strong {
    font-size: 15px;
    font-weight: 800;
    color: var(--text-heading);
    line-height: 1.3;
}

.student-video-info span {
    font-size: 12.5px;
    color: var(--text-muted);
    font-weight: 600;
}

.student-video-badge {
    display: inline-block;
    align-self: flex-start;
    margin-top: 6px;
    font-size: 11px;
    font-weight: 700;
    color: var(--brand-primary);
    background: var(--brand-primary-light);
    padding: 2px 8px;
    border-radius: 4px;
}

.student-account-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}

.student-account-item {
    background: var(--surface-card-alt);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 16px 18px;
}

.student-account-item span {
    font-size: 12.5px;
    font-weight: 700;
    color: var(--text-muted);
    display: block;
    margin-bottom: 4px;
}

.student-account-item strong {
    font-size: 17px;
    font-weight: 800;
    color: var(--text-heading);
    word-break: break-all;
}

/* ==========================================================================
   5. Authentication & Registration Styles (.register-screen, .login-screen)
   ========================================================================== */
.register-screen,
.login-screen {
    background: linear-gradient(135deg, #f0f5fb 0%, #e8f0fa 100%) !important;
    font-family: 'Cairo', 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif !important;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 0;
    margin: 0;
    position: relative;
    direction: rtl;
    text-align: right;
}

.register-screen .auth-shell,
.login-screen .auth-shell {
    display: grid !important;
    grid-template-columns: minmax(400px, 38%) 1fr !important;
    width: 100% !important;
    min-height: 100vh !important;
    margin: 0 !important;
    background: transparent !important;
    direction: rtl !important;
}

.register-screen .auth-panel,
.login-screen .auth-panel {
    display: flex !important;
    flex-direction: column !important;
    justify-content: space-between !important;
    background: linear-gradient(155deg, #040914 0%, #071530 40%, #0c2656 80%, #0a3675 100%) !important;
    color: #ffffff !important;
    padding: 44px 36px !important;
    position: relative !important;
    overflow: hidden !important;
    grid-column: auto !important;
    grid-row: auto !important;
    border-left: 1px solid rgba(0, 210, 255, 0.18) !important;
    min-height: 100vh !important;
}

.register-screen .auth-panel > *:not(.auth-glow-blob),
.login-screen .auth-panel > *:not(.auth-glow-blob) {
    display: flex !important;
    position: relative;
    z-index: 2;
}

.register-screen .auth-panel-image,
.login-screen .auth-panel-image {
    display: none !important;
}

.register-screen .auth-glow-blob,
.login-screen .auth-glow-blob {
    position: absolute !important;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    opacity: 0.35;
    z-index: 1;
}

.auth-glow-blob-1 {
    width: 320px;
    height: 320px;
    background: #00d2ff;
    top: -100px;
    right: -80px;
}

.auth-glow-blob-2 {
    width: 280px;
    height: 280px;
    background: #0066ff;
    bottom: -80px;
    left: -60px;
    opacity: 0.45;
}

.auth-panel-top {
    flex-direction: column;
    gap: 20px;
}

.auth-brand-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(0, 210, 255, 0.28);
    backdrop-filter: blur(12px);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    width: fit-content;
}

.auth-brand-logo-mini {
    width: 32px;
    height: 32px;
    object-fit: contain;
    mix-blend-mode: screen;
    filter: drop-shadow(0 2px 8px rgba(0, 210, 255, 0.6));
}

.auth-brand-badge span {
    font-size: 14.5px;
    font-weight: 800;
    color: #ffffff;
    letter-spacing: 0.2px;
}

.auth-panel-hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin: 12px 0 0;
}

.auth-logo-showcase {
    position: relative;
    width: 140px;
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
}

.auth-logo-orbit {
    position: absolute;
    inset: -12px;
    border-radius: 50%;
    border: 1.5px dashed rgba(0, 210, 255, 0.4);
    animation: spin-orbit 22s linear infinite;
}

.auth-logo-glow {
    position: absolute;
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, rgba(0, 210, 255, 0.45) 0%, rgba(0, 102, 255, 0.2) 60%, transparent 80%);
    border-radius: 50%;
    filter: blur(16px);
}

.auth-logo-main {
    width: 120px;
    height: 120px;
    object-fit: contain;
    position: relative;
    z-index: 2;
    mix-blend-mode: screen;
    filter: drop-shadow(0 10px 26px rgba(0, 160, 255, 0.55));
    animation: logo-float 4s ease-in-out infinite;
}

.auth-panel-copy {
    text-align: center;
}

.auth-panel-copy h1 {
    font-size: 24px !important;
    font-weight: 900 !important;
    color: #ffffff !important;
    line-height: 1.35 !important;
    margin-bottom: 10px !important;
}

.auth-panel-copy h1 span {
    background: linear-gradient(120deg, #67e8f9, #38bdf8, #ffffff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.auth-panel-copy p {
    font-size: 14px !important;
    color: #cbd5e1 !important;
    line-height: 1.65 !important;
    margin: 0 auto !important;
    max-width: 320px;
}

.auth-features-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 24px;
    width: 100%;
}

.auth-feature-pill {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(0, 210, 255, 0.18);
    backdrop-filter: blur(8px);
    padding: 10px 16px;
    border-radius: var(--radius-lg);
    font-size: 13.5px;
    font-weight: 700;
    color: #e2e8f0;
    transition: var(--transition-smooth);
}

.auth-feature-pill:hover {
    background: rgba(0, 210, 255, 0.15);
    border-color: rgba(0, 210, 255, 0.45);
    transform: translateX(-4px);
}

.auth-feature-icon {
    font-size: 16px;
    flex-shrink: 0;
}

/* Right Content Area */
.register-screen .auth-content,
.login-screen .auth-content {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 40px 32px !important;
    background: linear-gradient(135deg, #f1f6fc 0%, #ebf2fb 50%, #e2ecf8 100%) !important;
    overflow-y: auto !important;
    grid-column: auto !important;
    grid-row: auto !important;
    min-height: 100vh;
}

.register-screen .auth-form-wrap,
.login-screen .auth-form-wrap {
    background: #ffffff !important;
    border-radius: 24px !important;
    border: 1px solid rgba(210, 225, 245, 0.9) !important;
    box-shadow: 0 20px 45px -10px rgba(0, 112, 245, 0.09), 0 4px 18px -2px rgba(15, 23, 42, 0.04) !important;
    padding: 38px 44px !important;
    max-width: 680px !important;
    width: 100% !important;
    margin: auto !important;
}

.auth-form-header {
    margin-bottom: 22px !important;
    text-align: right;
}

.auth-form-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #edf5ff;
    border: 1px solid rgba(0, 112, 245, 0.2);
    color: var(--brand-primary);
    padding: 4px 14px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 800;
    margin-bottom: 10px;
}

.auth-form-badge .badge-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--brand-cyan);
    box-shadow: 0 0 8px var(--brand-cyan);
}

.auth-form-header h2 {
    font-size: 26px !important;
    font-weight: 900 !important;
    color: var(--text-heading) !important;
    margin: 0 0 6px !important;
    letter-spacing: -0.3px;
}

.auth-form-header p {
    font-size: 14.5px !important;
    color: var(--text-muted) !important;
    margin: 0 !important;
    font-weight: 500;
}

/* Stepper Wizard (Register) */
.auth-stepper-wrap {
    margin-bottom: 26px;
    position: relative;
}

.register-screen .auth-tabs {
    display: grid !important;
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 8px !important;
    background: #f1f5f9 !important;
    border: 1px solid #e2e8f0 !important;
    border-radius: 16px !important;
    padding: 6px !important;
}

.register-screen .auth-tab {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 8px !important;
    height: 46px !important;
    background: transparent !important;
    border: 0 !important;
    border-radius: 12px !important;
    color: var(--text-muted) !important;
    font-size: 13.5px !important;
    font-weight: 800 !important;
    cursor: pointer;
    transition: var(--transition-smooth) !important;
    padding: 0 10px !important;
    font-family: inherit !important;
}

.register-screen .auth-tab:hover {
    color: var(--brand-primary) !important;
    background: rgba(0, 112, 245, 0.06) !important;
}

.register-screen .auth-tab.active {
    background: #ffffff !important;
    color: var(--brand-primary) !important;
    box-shadow: 0 4px 14px rgba(0, 112, 245, 0.14) !important;
}

.register-screen .auth-tab.complete {
    color: var(--brand-emerald) !important;
}

.stepper-num {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 900;
    background: #e2e8f0;
    color: #64748b;
    flex-shrink: 0;
    transition: var(--transition-smooth);
}

.register-screen .auth-tab.active .stepper-num {
    background: var(--brand-primary);
    color: #ffffff;
    box-shadow: 0 0 10px rgba(0, 112, 245, 0.4);
}

.register-screen .auth-tab.complete .stepper-num {
    background: var(--brand-emerald);
    color: #ffffff;
}

.stepper-num svg {
    width: 14px;
    height: 14px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2.8;
}

/* Form Controls */
.register-screen label.form-label,
.login-screen label.form-label {
    color: #1e293b !important;
    font-size: 13.5px !important;
    font-weight: 700 !important;
    margin-bottom: 6px !important;
    display: block;
}

.auth-field {
    position: relative !important;
    display: flex;
    align-items: center;
}

.auth-field-icon {
    position: absolute !important;
    right: 15px !important;
    left: auto !important;
    width: 20px !important;
    height: 20px !important;
    color: #94a3b8 !important;
    pointer-events: none !important;
    transition: color 0.2s ease;
    z-index: 2;
}

.auth-field-icon svg {
    width: 100%;
    height: 100%;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
}

.auth-field:focus-within .auth-field-icon {
    color: var(--brand-primary) !important;
}

.register-screen .form-control,
.login-screen .form-control,
.register-screen .form-select,
.login-screen .form-select {
    width: 100% !important;
    height: 50px !important;
    padding: 0 48px 0 16px !important;
    background-color: #f8fafc !important;
    border: 1.5px solid #e2e8f0 !important;
    border-radius: 12px !important;
    font-size: 14.5px !important;
    font-weight: 600 !important;
    color: var(--text-heading) !important;
    font-family: inherit !important;
    transition: var(--transition-smooth) !important;
}

.register-screen .form-control:focus,
.login-screen .form-control:focus,
.register-screen .form-select:focus,
.login-screen .form-select:focus {
    background-color: #ffffff !important;
    border-color: var(--brand-primary) !important;
    box-shadow: 0 0 0 4px rgba(0, 112, 245, 0.12) !important;
    outline: none !important;
}

.register-screen .form-control::placeholder,
.login-screen .form-control::placeholder {
    color: #94a3b8 !important;
    font-weight: 500;
}

.phone-input {
    direction: ltr !important;
    text-align: right !important;
    font-family: 'Plus Jakarta Sans', monospace, sans-serif !important;
    letter-spacing: 0.5px;
}

.register-screen .form-select,
.login-screen .form-select {
    cursor: pointer;
    background-position: left 16px center !important;
}

.register-screen .form-select:disabled,
.login-screen .form-select:disabled {
    background-color: #e2e8f0 !important;
    cursor: not-allowed;
    opacity: 0.65;
}

.btn-toggle-password {
    position: absolute;
    left: 14px;
    background: transparent;
    border: 0;
    padding: 4px;
    color: #94a3b8;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: color 0.2s ease;
    z-index: 3;
}

.btn-toggle-password:hover {
    color: var(--brand-primary);
}

.btn-toggle-password svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
}

.form-hint {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 5px;
    font-weight: 600;
}

.register-screen .invalid-feedback,
.login-screen .invalid-feedback {
    font-size: 12px !important;
    font-weight: 700 !important;
    color: #dc2626 !important;
    margin-top: 5px !important;
}

.register-screen .form-control.is-invalid,
.login-screen .form-control.is-invalid,
.register-screen .form-select.is-invalid,
.login-screen .form-select.is-invalid {
    border-color: #ef4444 !important;
    background-color: #fff1f2 !important;
}

/* Custom Checkbox (Remember Me) */
.custom-remember-check {
    display: flex !important;
    align-items: center !important;
    gap: 10px !important;
    padding: 0 !important;
    margin: 0 !important;
}

.custom-remember-check .form-check-input {
    width: 19px !important;
    height: 19px !important;
    border-radius: 6px !important;
    border: 1.5px solid #cbd5e1 !important;
    margin: 0 !important;
    cursor: pointer !important;
    float: none !important;
    transition: var(--transition-smooth) !important;
    background-color: #f8fafc !important;
}

.custom-remember-check .form-check-input:checked {
    background-color: var(--brand-primary) !important;
    border-color: var(--brand-primary) !important;
    box-shadow: 0 0 10px rgba(0, 112, 245, 0.4) !important;
}

.custom-remember-check .form-check-label {
    font-size: 14px !important;
    color: #475569 !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    user-select: none !important;
}

/* Action Buttons */
.auth-actions {
    margin-top: 28px !important;
    padding-top: 20px !important;
    border-top: 1px solid #f1f5f9 !important;
}

.btn-block-cta {
    width: 100% !important;
    height: 50px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 10px !important;
    background: linear-gradient(135deg, #0056cc 0%, #0070f5 55%, #00a3ff 100%) !important;
    color: #ffffff !important;
    border: 0 !important;
    border-radius: 12px !important;
    font-size: 15.5px !important;
    font-weight: 800 !important;
    cursor: pointer !important;
    box-shadow: 0 6px 18px rgba(0, 112, 245, 0.3) !important;
    transition: var(--transition-smooth) !important;
    font-family: inherit !important;
    text-decoration: none !important;
}

.btn-block-cta:hover {
    background: linear-gradient(135deg, #0045a8 0%, #005ec7 55%, #0087db 100%) !important;
    box-shadow: 0 10px 24px rgba(0, 112, 245, 0.45) !important;
    transform: translateY(-2px) !important;
}

.auth-actions-split {
    display: flex !important;
    align-items: center !important;
    gap: 12px !important;
}

.auth-actions-split .btn-step-back {
    flex: 0 0 auto;
    min-width: 130px;
}

.auth-actions-split .btn-step-next,
.auth-actions-split .btn-step-submit {
    flex: 1 1 auto;
    margin: 0 !important;
    width: auto !important;
}

.btn-step-next,
.btn-step-submit {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 10px !important;
    height: 50px !important;
    padding: 0 28px !important;
    background: linear-gradient(135deg, #0056cc 0%, #0070f5 55%, #00a3ff 100%) !important;
    color: #ffffff !important;
    border: 0 !important;
    border-radius: 12px !important;
    font-size: 15px !important;
    font-weight: 800 !important;
    cursor: pointer !important;
    box-shadow: 0 4px 14px rgba(0, 112, 245, 0.3) !important;
    transition: var(--transition-smooth) !important;
    font-family: inherit !important;
    text-decoration: none !important;
}

.btn-step-next:hover,
.btn-step-submit:hover {
    background: linear-gradient(135deg, #0045a8 0%, #005ec7 55%, #0087db 100%) !important;
    box-shadow: 0 8px 22px rgba(0, 112, 245, 0.45) !important;
    transform: translateY(-2px) !important;
    color: #ffffff !important;
}

.btn-step-back {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 8px !important;
    height: 50px !important;
    padding: 0 22px !important;
    background: var(--surface-card-alt) !important;
    color: var(--text-heading) !important;
    border: 1px solid var(--border-subtle) !important;
    border-radius: 12px !important;
    font-size: 14.5px !important;
    font-weight: 700 !important;
    cursor: pointer !important;
    transition: var(--transition-smooth) !important;
    font-family: inherit !important;
    text-decoration: none !important;
}

.btn-step-back:hover {
    background: #e2e8f0 !important;
    color: #0f172a !important;
}

.btn-step-next svg,
.btn-step-submit svg,
.btn-step-back svg,
.btn-block-cta svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2.2;
}

.auth-card-footer {
    text-align: center;
    margin-top: 24px;
    padding-top: 18px;
    border-top: 1px dashed #e2e8f0;
    font-size: 14.5px;
    color: var(--text-muted);
    font-weight: 600;
}

.auth-card-footer a {
    color: var(--brand-primary);
    font-weight: 800;
    text-decoration: none;
    margin-right: 6px;
    transition: color 0.2s ease;
}

.auth-card-footer a:hover {
    color: var(--brand-primary-hover);
    text-decoration: underline;
}

/* ==========================================================================
   6. Responsive Layouts & Breakpoints
   ========================================================================== */
@media (max-width: 991px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content {
        text-align: center;
    }

    .hero-subtitle {
        margin: 0 auto 28px;
    }

    .hero-features {
        justify-content: center;
    }

    .hero-visual {
        order: -1;
        margin-bottom: 12px;
    }

    .student-dashboard {
        grid-template-columns: 1fr;
    }

    .student-sidebar {
        position: static;
        order: -1;
    }

    .hero-title {
        font-size: 32px;
    }

    .register-screen .auth-shell,
    .login-screen .auth-shell {
        grid-template-columns: 1fr !important;
    }

    .register-screen .auth-panel,
    .login-screen .auth-panel {
        padding: 32px 24px !important;
        border-left: 0;
        border-bottom: 1px solid rgba(0, 210, 255, 0.2);
        min-height: auto !important;
        height: auto !important;
    }

    .auth-logo-showcase {
        width: 120px;
        height: 120px;
        margin-bottom: 12px;
    }

    .auth-logo-main {
        width: 95px;
        height: 95px;
    }

    .auth-logo-orbit {
        display: none;
    }

    .auth-features-list {
        display: none !important;
    }

    .register-screen .auth-content,
    .login-screen .auth-content {
        padding: 32px 20px !important;
    }
}

@media (max-width: 576px) {
    .hero-section {
        padding: 38px 0 44px;
    }

    .hero-logo-frame {
        width: 170px;
        height: 170px;
    }

    .hero-logo-img {
        width: 140px;
        height: 140px;
    }

    .hero-title {
        font-size: 26px;
    }

    .hero-subtitle {
        font-size: 15px;
    }

    .course-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .course-search {
        min-width: 100%;
    }

    .btn-filter-toggle,
    .btn-filter-reset {
        width: 100%;
        justify-content: center;
    }

    .student-panel {
        padding: 18px 14px;
    }

    .register-screen .auth-tab span:not(.stepper-num) {
        display: none;
    }

    .register-screen .auth-tab {
        gap: 0 !important;
        padding: 0 !important;
    }

    .auth-actions {
        flex-direction: column-reverse;
        align-items: stretch !important;
    }

    .btn-step-next,
    .btn-step-submit,
    .btn-step-back {
        width: 100% !important;
        margin: 0 !important;
    }
}