/* =========================================================
   SANJAI TRADING LMS - MASTER STYLESHEET
   Colors: Primary #0F4C81 | Secondary #1E88E5 | Accent #00C853
   Typography: Poppins
   Style: Premium Glassmorphism & Smooth Animations
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary: #0F4C81;
    --primary-light: #1A5F9E;
    --primary-dark: #0A3760;
    --secondary: #1E88E5;
    --secondary-light: #42A5F5;
    --accent: #00C853;
    --accent-hover: #00E676;
    --danger: #FF3D00;
    --warning: #FFAB00;
    --info: #00B0FF;

    --bg-main: #FFFFFF;
    --bg-alt: #F4F7FA;
    --bg-card: rgba(255, 255, 255, 0.85);
    --border-color: rgba(15, 76, 129, 0.12);
    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --text-muted: #94A3B8;

    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 10px 15px -3px rgba(15, 76, 129, 0.08), 0 4px 6px -2px rgba(15, 76, 129, 0.04);
    --shadow-lg: 0 20px 25px -5px rgba(15, 76, 129, 0.12), 0 10px 10px -5px rgba(15, 76, 129, 0.04);
    --shadow-glass: 0 8px 32px 0 rgba(15, 76, 129, 0.15);

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-full: 9999px;

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode Theme Overrides */
body.dark-mode {
    --bg-main: #0B132B;
    --bg-alt: #1C2541;
    --bg-card: rgba(28, 37, 65, 0.85);
    --border-color: rgba(255, 255, 255, 0.1);
    --text-primary: #F8FAFC;
    --text-secondary: #CBD5E1;
    --text-muted: #64748B;
    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
}

/* Global Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
    user-select: none; /* Anti-selection aid */
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Glassmorphism Utility */
.glass {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-glass);
}

.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.glass-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* Navigation Bar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.brand-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #FFF;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    box-shadow: var(--shadow-sm);
}

.brand-info h2 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: -0.5px;
    line-height: 1.1;
}

body.dark-mode .brand-info h2 {
    color: #FFF;
}

.brand-info span {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--secondary);
    letter-spacing: 0.5px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover, .nav-link.active {
    color: var(--secondary);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--secondary);
    border-radius: var(--radius-full);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #FFF;
    box-shadow: 0 4px 14px rgba(15, 76, 129, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(15, 76, 129, 0.45);
}

.btn-secondary {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

body.dark-mode .btn-secondary {
    color: var(--secondary);
    border-color: var(--secondary);
}

.btn-secondary:hover {
    background: rgba(30, 136, 229, 0.1);
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent), #00E676);
    color: #FFF;
    box-shadow: 0 4px 14px rgba(0, 200, 83, 0.35);
}

.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 200, 83, 0.45);
}

.btn-sm {
    padding: 0.4rem 0.9rem;
    font-size: 0.85rem;
}

.theme-toggle {
    background: var(--bg-alt);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.theme-toggle:hover {
    transform: rotate(20deg);
}

/* Mobile Menu Toggle - Hidden on desktop, visible on mobile/tablet */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.25rem;
    transition: var(--transition);
}

/* Mobile Navigation Overlay */
.mobile-nav-overlay {
    position: fixed;
    top: 75px;
    left: 0;
    right: 0;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    padding: 1.5rem 5%;
    display: none;
    flex-direction: column;
    gap: 1.25rem;
    z-index: 999;
    animation: slideDown 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-nav-overlay.open {
    display: flex;
}

.mobile-nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.mobile-nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.05rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Home Page Hero Image Slider */
.hero-slider-container {
    position: relative;
    width: 100%;
    max-width: 520px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-glass);
}

.slider-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-slide {
    min-width: 100%;
    box-sizing: border-box;
    padding: 1.5rem;
    text-align: center;
    background: var(--bg-card);
    backdrop-filter: blur(12px);
}

.hero-slide-img {
    width: 100%;
    height: 240px;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: 1.25rem;
    box-shadow: var(--shadow-sm);
}

.hero-slide-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

body.dark-mode .hero-slide-title {
    color: #FFF;
}

.hero-slide-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.slider-controls {
    position: absolute;
    top: 40%;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    padding: 0 0.5rem;
    pointer-events: none;
}

.slider-arrow {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(15, 76, 129, 0.75);
    color: #FFF;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: auto;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.slider-arrow:hover {
    background: var(--secondary);
    transform: scale(1.1);
}

.slider-dots {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
    position: absolute;
    bottom: 12px;
    left: 0;
    right: 0;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: var(--secondary);
    width: 24px;
    border-radius: var(--radius-full);
}


/* Hero Section */
.hero-section {
    padding: 9rem 5% 5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 4rem;
    min-height: 90vh;
    background: radial-gradient(circle at 80% 20%, rgba(30, 136, 229, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 10% 80%, rgba(0, 200, 83, 0.05) 0%, transparent 50%);
}

.hero-content h1 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

body.dark-mode .hero-content h1 {
    background: linear-gradient(135deg, #60A5FA, #38BDF8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 540px;
}

.hero-cta {
    display: flex;
    gap: 1rem;
}

.hero-graphic {
    position: relative;
    display: flex;
    justify-content: center;
}

.hero-card-preview {
    width: 100%;
    max-width: 500px;
    padding: 2rem;
    border-radius: var(--radius-lg);
    position: relative;
}

.badge-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    background: rgba(0, 200, 83, 0.12);
    color: var(--accent);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
}

/* Features Grid */
.section {
    padding: 5rem 5%;
}

.section-alt {
    background-color: var(--bg-alt);
}

.section-title {
    text-align: center;
    max-width: 650px;
    margin: 0 auto 3.5rem;
}

.section-title h2 {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

body.dark-mode .section-title h2 {
    color: #FFF;
}

.section-title p {
    color: var(--text-secondary);
    font-size: 1rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
}

.feature-card {
    padding: 2rem;
    text-align: left;
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: rgba(30, 136, 229, 0.1);
    color: var(--secondary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    font-size: 1.5rem;
}

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Why Choose Us & Stats */
.why-us-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.check-list {
    list-style: none;
    margin-top: 1.5rem;
}

.check-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.05rem;
    margin-bottom: 1rem;
    font-weight: 500;
}

.check-list i {
    color: var(--accent);
    font-size: 1.25rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.stat-card {
    padding: 2rem;
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 0.25rem;
}

body.dark-mode .stat-number {
    color: var(--secondary-light);
}

.stat-label {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Testimonials & FAQ */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    padding: 2rem;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
}

.faq-accordion {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.faq-item {
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
}

.faq-question {
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    font-size: 1.05rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-answer {
    padding: 0 1.5rem 1.25rem;
    color: var(--text-secondary);
    display: none;
    font-size: 0.95rem;
}

.faq-item.active .faq-answer {
    display: block;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

/* Payment Status Badge & TradingView Container */
.payment-status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    background: rgba(0, 200, 83, 0.15);
    color: var(--accent);
    border: 1px solid rgba(0, 200, 83, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 700;
}

.tradingview-card {
    padding: 1.5rem;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

.symbol-selector-btns {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.symbol-btn {
    padding: 0.4rem 0.85rem;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    background: rgba(30, 136, 229, 0.1);
    color: var(--secondary);
    border: 1px solid rgba(30, 136, 229, 0.2);
    cursor: pointer;
    transition: var(--transition);
}

.symbol-btn:hover, .symbol-btn.active {
    background: var(--secondary);
    color: #FFF;
}

/* Structured Numbered Course Module List (Matching Reference LMS Layout) */
.course-header-badge-card {
    padding: 1.5rem;
    border-radius: var(--radius-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
}

.course-meta-subtitle {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.recordings-pill-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.85rem 1.5rem;
    font-weight: 700;
    font-size: 1rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #FFF;
    border-radius: var(--radius-sm);
    border: none;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.module-numbered-list {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    margin-bottom: 2rem;
}

.module-item-card {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.module-item-card:hover {
    border-color: var(--secondary);
    transform: translateX(4px);
}

.module-item-card.active {
    border: 2px solid var(--secondary);
    background: rgba(30, 136, 229, 0.08);
}

.module-number-badge {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(30, 136, 229, 0.15);
    color: var(--secondary);
    font-weight: 700;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.module-item-card.active .module-number-badge {
    background: var(--secondary);
    color: #FFF;
}

.module-title-text {
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--text-primary);
    flex: 1;
}

.security-premium-banner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem;
    border-radius: var(--radius-md);
    background: rgba(0, 200, 83, 0.1);
    color: var(--accent);
    border: 1px solid rgba(0, 200, 83, 0.2);
    font-weight: 700;
    font-size: 0.95rem;
    margin-top: 1rem;
}

.auth-container {
    padding: 8rem 5% 5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 90vh;
}

.auth-card {
    width: 100%;
    max-width: 460px;
    padding: 2.5rem;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h2 {
    font-size: 1.75rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

body.dark-mode .auth-header h2 {
    color: #FFF;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 0.8rem 1rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.6);
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition);
}

body.dark-mode .form-control {
    background: rgba(15, 23, 42, 0.6);
}

.form-control:focus {
    border-color: var(--secondary);
    box-shadow: 0 0 0 3px rgba(30, 136, 229, 0.2);
}

.form-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    font-size: 0.85rem;
}

/* Dashboard Layout */
.dashboard-layout {
    display: flex;
    min-height: 100vh;
    padding-top: 75px;
}

.sidebar {
    width: 260px;
    background: var(--bg-card);
    border-right: 1px solid var(--border-color);
    padding: 1.5rem 1rem;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 75px;
    bottom: 0;
    left: 0;
    z-index: 100;
    overflow-y: auto;
    transition: var(--transition);
}

.sidebar-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.8rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    cursor: pointer;
}

.sidebar-link:hover, .sidebar-link.active {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #FFF;
}

.main-content {
    margin-left: 260px;
    flex: 1;
    padding: 2rem 3%;
    background-color: var(--bg-alt);
    min-height: calc(100vh - 75px);
}

/* Dashboard Grid Cards */
.stats-cards-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.dash-card {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.dash-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    background: rgba(30, 136, 229, 0.1);
    color: var(--secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
}

.dash-val {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.1;
}

.dash-lbl {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Footer */
.footer {
    background: var(--primary-dark);
    color: #E2E8F0;
    padding: 4rem 5% 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h4 {
    color: #FFF;
    margin-bottom: 1.25rem;
    font-size: 1.1rem;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: #94A3B8;
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.9rem;
}

.footer-links a:hover {
    color: #FFF;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #64748B;
    font-size: 0.85rem;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.toast {
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
    animation: slideIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    min-width: 280px;
}

.toast-success { border-left: 4px solid var(--accent); }
.toast-error { border-left: 4px solid var(--danger); }
.toast-warning { border-left: 4px solid var(--warning); }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* Responsive Rules */
@media (max-width: 992px) {
    .navbar {
        padding: 0.75rem 4%;
    }
    #navUserName {
        display: none; /* Hide long user name text on narrow mobile screens */
    }
    #navDashLink {
        display: none; /* Hide duplicate dashboard button in header when logged in */
    }
    .hero-section {
        grid-template-columns: 1fr;
        padding-top: 7rem;
        text-align: center;
    }
    .hero-content p {
        margin: 0 auto 2rem;
    }
    .hero-cta {
        justify-content: center;
    }
    .why-us-grid {
        grid-template-columns: 1fr;
    }
    .sidebar {
        transform: translateX(-100%);
        width: 280px;
        box-shadow: 0 10px 30px rgba(0,0,0,0.5);
        z-index: 2000;
        background: var(--bg-card);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .main-content {
        margin-left: 0;
        padding: 1.25rem 4%;
    }
    .menu-toggle {
        display: block !important;
    }
    .nav-links {
        display: none;
    }
}

@media (max-width: 768px) {
    .brand-info span {
        display: none;
    }
    .brand-info h2 {
        font-size: 1.1rem;
    }
    .brand-icon {
        width: 36px;
        height: 36px;
        font-size: 1.2rem;
    }
    #studentVideoLibraryGrid .glass-card {
        flex-direction: column !important;
        align-items: stretch !important;
        text-align: left !important;
    }
    #studentVideoLibraryGrid img {
        width: 100% !important;
        height: 180px !important;
    }
    #studentVideoLibraryGrid .btn {
        width: 100% !important;
        margin-top: 0.5rem;
    }
    .symbol-selector-btns {
        width: 100%;
        overflow-x: auto;
        padding-bottom: 0.5rem;
        flex-wrap: nowrap;
    }
    .symbol-btn {
        white-space: nowrap;
    }
    .tradingview-card iframe {
        height: 380px !important;
    }
}