/* ===================================
   Landing & Dashboard Styles - QMF Compliant
   Classroom System
   Purpose: Landing page, services section, and dashboard dark theme
   =================================== */

/* ============================================
   QMF DARK THEME VARIABLES
   ============================================ */
:root {
    /* Dark theme colors for classroom */
    --qmf-classroom-bg-dark: #0f0c29;
    --qmf-classroom-bg-dark-alt: #1a1a3e;
    --qmf-classroom-bg-card: rgba(255, 255, 255, 0.05);
    --qmf-classroom-bg-card-hover: rgba(255, 255, 255, 0.08);
    --qmf-classroom-border: rgba(255, 255, 255, 0.1);
    --qmf-classroom-border-hover: rgba(102, 126, 234, 0.4);
    --qmf-classroom-text-primary: #ffffff;
    --qmf-classroom-text-secondary: rgba(255, 255, 255, 0.8);
    --qmf-classroom-text-muted: rgba(255, 255, 255, 0.6);
    --qmf-classroom-gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --qmf-classroom-gradient-success: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    --qmf-classroom-gradient-accent: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --qmf-classroom-gradient-info: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --qmf-classroom-shadow-primary: 0 4px 15px rgba(102, 126, 234, 0.3);
    --qmf-classroom-shadow-primary-lg: 0 8px 30px rgba(102, 126, 234, 0.4);
}

/* ============================================
   LANDING HERO SECTION
   ============================================ */
.landing-hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px var(--qmf-space-6, 1.5rem) 80px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--qmf-classroom-bg-dark) 0%, #302b63 50%, #24243e 100%);
}

.landing-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 30% 50%, rgba(102, 126, 234, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 70% 50%, rgba(118, 75, 162, 0.15) 0%, transparent 50%);
    animation: qmf-landing-pulse 15s ease-in-out infinite;
}

@keyframes qmf-landing-pulse {
    0%, 100% { transform: scale(1) rotate(0deg); }
    50% { transform: scale(1.1) rotate(5deg); }
}

.landing-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.landing-logo {
    width: 160px;
    height: 160px;
    border-radius: var(--qmf-radius-xl, 16px);
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.3);
    animation: qmf-landing-float 6s ease-in-out infinite;
    margin-bottom: var(--qmf-space-8, 2rem);
}

@keyframes qmf-landing-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.landing-title {
    font-family: 'Poppins', var(--qmf-font-family, system-ui, sans-serif);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    color: var(--qmf-classroom-text-primary);
    margin-bottom: var(--qmf-space-2, 0.5rem);
}

.landing-subtitle {
    font-family: 'Poppins', var(--qmf-font-family, system-ui, sans-serif);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 600;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--qmf-space-6, 1.5rem);
}

.landing-desc {
    font-size: 1.125rem;
    color: var(--qmf-classroom-text-secondary);
    max-width: 600px;
    margin: 0 auto var(--qmf-space-8, 2rem);
    line-height: 1.7;
}

.landing-actions {
    display: flex;
    gap: var(--qmf-space-4, 1rem);
    justify-content: center;
    flex-wrap: wrap;
}

.landing-btn {
    padding: var(--qmf-space-4, 1rem) var(--qmf-space-8, 2rem);
    border-radius: var(--qmf-radius-lg, 12px);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all var(--qmf-transition-slow, 0.3s ease);
    display: inline-flex;
    align-items: center;
    gap: var(--qmf-space-2, 0.5rem);
    border: none;
    cursor: pointer;
}

.landing-btn-primary {
    background: var(--qmf-classroom-gradient-primary);
    color: var(--qmf-classroom-text-primary);
    box-shadow: var(--qmf-classroom-shadow-primary);
}

.landing-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--qmf-classroom-shadow-primary-lg);
}

.landing-btn-secondary {
    background: var(--qmf-classroom-bg-card);
    color: var(--qmf-classroom-text-primary);
    border: 1px solid var(--qmf-classroom-border);
}

.landing-btn-secondary:hover {
    background: var(--qmf-classroom-bg-card-hover);
    transform: translateY(-3px);
}

/* Landing Features Grid */
.landing-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--qmf-space-4, 1rem);
    margin-top: var(--qmf-space-12, 3rem);
    text-align: left;
}

.landing-feature {
    background: var(--qmf-classroom-bg-card);
    border-radius: var(--qmf-radius-xl, 16px);
    padding: var(--qmf-space-4, 1rem);
    border: 1px solid var(--qmf-classroom-border);
    display: flex;
    align-items: center;
    gap: var(--qmf-space-3, 0.75rem);
    color: var(--qmf-classroom-text-secondary);
    transition: all var(--qmf-transition-normal, 0.2s ease);
}

.landing-feature:hover {
    background: var(--qmf-classroom-bg-card-hover);
    border-color: var(--qmf-classroom-border-hover);
}

.landing-feature i {
    font-size: 1.5rem;
    color: #667eea;
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services-section {
    padding: 80px var(--qmf-space-6, 1.5rem);
    background: linear-gradient(135deg, var(--qmf-classroom-bg-dark) 0%, var(--qmf-classroom-bg-dark-alt) 100%);
}

.services-grid {
    max-width: var(--qmf-container-max, 1200px);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--qmf-space-6, 1.5rem);
}

.service-card {
    background: var(--qmf-classroom-bg-card);
    border-radius: var(--qmf-radius-xl, 16px);
    padding: var(--qmf-space-8, 2rem);
    border: 1px solid var(--qmf-classroom-border);
    transition: all var(--qmf-transition-slow, 0.3s ease);
    text-decoration: none;
    color: inherit;
}

.service-card:hover {
    transform: translateY(-8px);
    background: var(--qmf-classroom-bg-card-hover);
    border-color: var(--qmf-classroom-border-hover);
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.2);
}

.service-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--qmf-radius-xl, 16px);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--qmf-space-4, 1rem);
    font-size: 1.75rem;
    color: var(--qmf-classroom-text-primary);
}

.service-icon.classroom { background: var(--qmf-classroom-gradient-primary); }
.service-icon.lms { background: var(--qmf-classroom-gradient-success); }
.service-icon.play { background: var(--qmf-classroom-gradient-accent); }
.service-icon.cms { background: var(--qmf-classroom-gradient-info); }

.service-title {
    font-family: 'Poppins', var(--qmf-font-family, system-ui, sans-serif);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--qmf-space-3, 0.75rem);
    color: var(--qmf-classroom-text-primary);
}

.service-desc {
    color: var(--qmf-classroom-text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ============================================
   SECTION VISIBILITY LOGIC
   ============================================ */

/* Hide landing and services when user is authenticated */
body.authenticated .landing-section,
body.authenticated .services-section {
    display: none !important;
}

/* Show dashboard only when authenticated */
.dashboard-section {
    display: none;
}

body.authenticated .dashboard-section {
    display: block;
}

/* Footer adjustment */
body:not(.authenticated) .simple-footer {
    margin-top: 0;
}

/* ============================================
   SIMPLE FOOTER
   ============================================ */
.simple-footer {
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid var(--qmf-classroom-border);
    padding: var(--qmf-space-6, 1.5rem) var(--qmf-space-4, 1rem);
    text-align: center;
    font-size: 0.8125rem;
    color: var(--qmf-classroom-text-secondary);
}

.simple-footer a {
    color: var(--qmf-classroom-text-secondary);
    text-decoration: none;
    margin: 0 var(--qmf-space-3, 0.75rem);
    transition: color var(--qmf-transition-fast, 0.15s ease);
}

.simple-footer a:hover {
    color: var(--qmf-classroom-text-primary);
}

.dmca-badge {
    display: inline-flex;
    align-items: center;
    margin-left: var(--qmf-space-2, 0.5rem);
}

.dmca-badge img {
    height: 18px;
    width: auto;
}

/* ============================================
   DASHBOARD DARK THEME
   ============================================ */

body.authenticated .dashboard-section {
    background: linear-gradient(135deg, var(--qmf-classroom-bg-dark) 0%, var(--qmf-classroom-bg-dark-alt) 100%);
    min-height: calc(100vh - var(--qmf-header-height, 64px));
    padding: var(--qmf-space-8, 2rem) 0;
}

body.authenticated .dashboard-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--qmf-space-6, 1.5rem);
}

/* Tab Navigation - Dark Theme */
body.authenticated .tab-navigation {
    background: var(--qmf-classroom-bg-card);
    border: 1px solid var(--qmf-classroom-border);
    border-radius: var(--qmf-radius-xl, 16px);
    padding: var(--qmf-space-2, 0.5rem);
    margin-bottom: var(--qmf-space-8, 2rem);
    backdrop-filter: blur(10px);
}

body.authenticated .tab-container {
    display: flex;
    gap: var(--qmf-space-2, 0.5rem);
    flex-wrap: wrap;
    justify-content: center;
}

body.authenticated .tab-button {
    background: transparent;
    border: none;
    color: var(--qmf-classroom-text-muted);
    padding: var(--qmf-space-2, 0.5rem) var(--qmf-space-3, 0.75rem);
    border-radius: var(--qmf-radius-md, 8px);
    cursor: pointer;
    transition: all var(--qmf-transition-slow, 0.3s ease);
    font-weight: 500;
    font-size: 0.8125rem;
    display: flex;
    align-items: center;
    gap: var(--qmf-space-1, 0.25rem);
}

body.authenticated .tab-button:hover {
    background: var(--qmf-classroom-bg-card);
    color: var(--qmf-classroom-text-secondary);
}

body.authenticated .tab-button.active {
    background: var(--qmf-classroom-gradient-primary);
    color: var(--qmf-classroom-text-primary);
    box-shadow: var(--qmf-classroom-shadow-primary);
}

body.authenticated .tab-button i {
    font-size: 0.875rem;
}

/* Tab Pane Animation */
body.authenticated .tab-pane {
    animation: qmf-fadeInUp 0.4s ease;
}

@keyframes qmf-fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Dashboard Header - Dark Theme */
body.authenticated .dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--qmf-space-8, 2rem);
    flex-wrap: wrap;
    gap: var(--qmf-space-4, 1rem);
}

body.authenticated .dashboard-title h1 {
    font-family: 'Poppins', var(--qmf-font-family, system-ui, sans-serif);
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: 700;
    background: linear-gradient(135deg, var(--qmf-classroom-text-primary) 0%, var(--qmf-classroom-text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--qmf-space-2, 0.5rem);
}

body.authenticated .dashboard-title p {
    color: var(--qmf-classroom-text-muted);
    font-size: 1rem;
}

body.authenticated .dashboard-actions {
    display: flex;
    gap: var(--qmf-space-3, 0.75rem);
    flex-wrap: wrap;
}

body.authenticated .dashboard-actions .btn {
    padding: var(--qmf-space-2, 0.5rem) var(--qmf-space-4, 1rem);
    border-radius: var(--qmf-radius-md, 8px);
    font-weight: 600;
    font-size: 0.8125rem;
    transition: all var(--qmf-transition-slow, 0.3s ease);
    display: inline-flex;
    align-items: center;
    gap: var(--qmf-space-1, 0.25rem);
    cursor: pointer;
    border: none;
}

body.authenticated .dashboard-actions .btn-primary {
    background: var(--qmf-classroom-gradient-primary);
    color: var(--qmf-classroom-text-primary);
    box-shadow: var(--qmf-classroom-shadow-primary);
}

body.authenticated .dashboard-actions .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--qmf-classroom-shadow-primary-lg);
}

body.authenticated .dashboard-actions .btn-outline {
    background: var(--qmf-classroom-bg-card);
    color: var(--qmf-classroom-text-primary);
    border: 1px solid var(--qmf-classroom-border);
}

body.authenticated .dashboard-actions .btn-outline:hover {
    background: var(--qmf-classroom-bg-card-hover);
    transform: translateY(-2px);
}

/* Quick Stats Cards - Dark Theme (Compact) */
body.authenticated .quick-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--qmf-space-3, 0.75rem);
    margin-bottom: var(--qmf-space-6, 1.5rem);
}

body.authenticated .stat-card {
    background: var(--qmf-classroom-bg-card);
    border: 1px solid var(--qmf-classroom-border);
    border-radius: var(--qmf-radius-lg, 12px);
    padding: var(--qmf-space-3, 0.75rem) var(--qmf-space-4, 1rem);
    display: flex;
    align-items: center;
    gap: var(--qmf-space-3, 0.75rem);
    transition: all var(--qmf-transition-slow, 0.3s ease);
    backdrop-filter: blur(10px);
}

body.authenticated .stat-card:hover {
    transform: translateY(-4px);
    background: var(--qmf-classroom-bg-card-hover);
    border-color: var(--qmf-classroom-border-hover);
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.15);
}

body.authenticated .stat-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--qmf-radius-md, 8px);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.125rem;
    flex-shrink: 0;
    color: var(--qmf-classroom-text-primary);
    background: var(--qmf-classroom-gradient-primary);
    box-shadow: var(--qmf-classroom-shadow-primary);
}

body.authenticated .stat-card:nth-child(2) .stat-icon {
    background: var(--qmf-classroom-gradient-success);
    box-shadow: 0 4px 15px rgba(17, 153, 142, 0.3);
}

body.authenticated .stat-card:nth-child(3) .stat-icon {
    background: var(--qmf-classroom-gradient-accent);
    box-shadow: 0 4px 15px rgba(240, 147, 251, 0.3);
}

body.authenticated .stat-card:nth-child(4) .stat-icon {
    background: var(--qmf-classroom-gradient-info);
    box-shadow: 0 4px 15px rgba(79, 172, 254, 0.3);
}

body.authenticated .stat-content {
    flex: 1;
}

body.authenticated .stat-number {
    font-family: 'Poppins', var(--qmf-font-family, system-ui, sans-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--qmf-classroom-text-primary);
    line-height: 1.1;
}

body.authenticated .stat-label {
    color: var(--qmf-classroom-text-muted);
    font-size: 0.75rem;
    font-weight: 500;
}

/* Classes Grid - Dark Theme (Compact) */
body.authenticated .classes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--qmf-space-4, 1rem);
}

body.authenticated .class-card {
    background: var(--qmf-classroom-bg-card);
    border: 1px solid var(--qmf-classroom-border);
    border-radius: var(--qmf-radius-lg, 12px);
    padding: var(--qmf-space-4, 1rem);
    transition: all var(--qmf-transition-slow, 0.3s ease);
    cursor: pointer;
    backdrop-filter: blur(10px);
}

body.authenticated .class-card:hover {
    transform: translateY(-6px);
    background: var(--qmf-classroom-bg-card-hover);
    border-color: var(--qmf-classroom-border-hover);
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.2);
}

body.authenticated .class-card h3 {
    color: var(--qmf-classroom-text-primary);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--qmf-space-1, 0.25rem);
}

body.authenticated .class-card p {
    color: var(--qmf-classroom-text-muted);
    font-size: 0.8125rem;
    line-height: 1.5;
}

/* Empty State - Dark Theme */
body.authenticated .empty-state {
    text-align: center;
    padding: var(--qmf-space-12, 3rem) var(--qmf-space-6, 1.5rem);
    color: var(--qmf-classroom-text-muted);
}

body.authenticated .empty-state i {
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.3);
    margin-bottom: var(--qmf-space-4, 1rem);
}

body.authenticated .empty-state h3 {
    color: var(--qmf-classroom-text-secondary);
    font-size: 1.5rem;
    margin-bottom: var(--qmf-space-2, 0.5rem);
}

body.authenticated .empty-state p {
    color: rgba(255, 255, 255, 0.5);
}

/* Recent Activity - Dark Theme */
body.authenticated .recent-activity h2 {
    color: var(--qmf-classroom-text-primary);
    font-size: 1.5rem;
    margin-bottom: var(--qmf-space-4, 1rem);
}

body.authenticated .activity-timeline {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--qmf-radius-xl, 16px);
    padding: var(--qmf-space-4, 1rem);
}

/* Container Sections - Dark Theme (Compact) */
body.authenticated .assignments-container,
body.authenticated .library-container,
body.authenticated .posts-container,
body.authenticated .invitations-container,
body.authenticated .events-container,
body.authenticated .scheduler-container {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--qmf-radius-lg, 12px);
    padding: var(--qmf-space-4, 1rem);
}

/* Filter Buttons - Dark Theme (Compact) */
body.authenticated .filter-btn,
body.authenticated .assignment-filters button {
    background: var(--qmf-classroom-bg-card-hover);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--qmf-classroom-text-muted);
    padding: var(--qmf-space-1, 0.25rem) var(--qmf-space-3, 0.75rem);
    border-radius: var(--qmf-radius-sm, 4px);
    cursor: pointer;
    transition: all var(--qmf-transition-slow, 0.3s ease);
    font-weight: 500;
    font-size: 0.75rem;
}

body.authenticated .filter-btn:hover,
body.authenticated .assignment-filters button:hover {
    background: rgba(255, 255, 255, 0.12);
    color: var(--qmf-classroom-text-primary);
}

body.authenticated .filter-btn.active,
body.authenticated .assignment-filters button.active {
    background: var(--qmf-classroom-gradient-primary);
    color: var(--qmf-classroom-text-primary);
    border-color: transparent;
}

/* Form Elements - Dark Theme */
body.authenticated .form-group label {
    color: var(--qmf-classroom-text-secondary);
    font-weight: 500;
    margin-bottom: var(--qmf-space-2, 0.5rem);
    display: block;
}

body.authenticated .form-group input,
body.authenticated .form-group select,
body.authenticated .form-group textarea {
    background: var(--qmf-classroom-bg-card-hover);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--qmf-classroom-text-primary);
    padding: var(--qmf-space-3, 0.75rem) var(--qmf-space-4, 1rem);
    border-radius: var(--qmf-radius-lg, 12px);
    width: 100%;
    font-size: 0.95rem;
    transition: all var(--qmf-transition-slow, 0.3s ease);
}

body.authenticated .form-group input::placeholder,
body.authenticated .form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

body.authenticated .form-group input:focus,
body.authenticated .form-group select:focus,
body.authenticated .form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

body.authenticated .form-group select option {
    background: var(--qmf-classroom-bg-dark-alt);
    color: var(--qmf-classroom-text-primary);
}

/* Modal - Dark Theme */
body.authenticated .modal {
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
}

body.authenticated .modal-content {
    background: linear-gradient(135deg, var(--qmf-classroom-bg-dark-alt) 0%, var(--qmf-classroom-bg-dark) 100%);
    border: 1px solid var(--qmf-classroom-border);
    border-radius: var(--qmf-radius-xl, 16px);
    color: var(--qmf-classroom-text-primary);
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5);
}

body.authenticated .modal-header {
    border-bottom: 1px solid var(--qmf-classroom-border);
    padding: var(--qmf-space-4, 1rem) var(--qmf-space-6, 1.5rem);
}

body.authenticated .modal-header h2 {
    color: var(--qmf-classroom-text-primary);
    font-size: 1.5rem;
}

body.authenticated .modal-close {
    background: var(--qmf-classroom-bg-card);
    border: none;
    color: var(--qmf-classroom-text-muted);
    width: 40px;
    height: 40px;
    border-radius: var(--qmf-radius-lg, 12px);
    cursor: pointer;
    transition: all var(--qmf-transition-slow, 0.3s ease);
}

body.authenticated .modal-close:hover {
    background: var(--qmf-classroom-bg-card-hover);
    color: var(--qmf-classroom-text-primary);
}

body.authenticated .modal-body {
    padding: var(--qmf-space-6, 1.5rem);
}

body.authenticated .form-actions {
    display: flex;
    gap: var(--qmf-space-3, 0.75rem);
    justify-content: flex-end;
    margin-top: var(--qmf-space-6, 1.5rem);
}

body.authenticated .btn-secondary {
    background: var(--qmf-classroom-bg-card);
    color: var(--qmf-classroom-text-secondary);
    border: 1px solid var(--qmf-classroom-border);
}

body.authenticated .btn-secondary:hover {
    background: var(--qmf-classroom-bg-card-hover);
}

/* Calendar Grid - Dark Theme */
body.authenticated .calendar-grid {
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--qmf-radius-xl, 16px);
    padding: var(--qmf-space-4, 1rem);
}

body.authenticated .calendar-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--qmf-space-4, 1rem);
    margin-bottom: var(--qmf-space-4, 1rem);
}

body.authenticated .calendar-title {
    color: var(--qmf-classroom-text-primary);
    font-size: 1.25rem;
    font-weight: 600;
}

body.authenticated .calendar-controls .btn {
    background: var(--qmf-classroom-bg-card);
    border: none;
    color: var(--qmf-classroom-text-primary);
    padding: var(--qmf-space-2, 0.5rem) var(--qmf-space-3, 0.75rem);
    border-radius: var(--qmf-radius-md, 8px);
    cursor: pointer;
    transition: all var(--qmf-transition-slow, 0.3s ease);
}

body.authenticated .calendar-controls .btn:hover {
    background: var(--qmf-classroom-bg-card-hover);
}

/* Schedules List - Dark Theme */
body.authenticated .schedules-list {
    margin-top: var(--qmf-space-6, 1.5rem);
}

body.authenticated .schedule-item {
    background: var(--qmf-classroom-bg-card);
    border: 1px solid var(--qmf-classroom-border);
    border-radius: var(--qmf-radius-lg, 12px);
    padding: var(--qmf-space-4, 1rem);
    margin-bottom: var(--qmf-space-3, 0.75rem);
    color: var(--qmf-classroom-text-secondary);
}

/* ============================================
   MOBILE RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .landing-hero {
        padding: 100px var(--qmf-space-4, 1rem) 60px;
    }
    
    .landing-logo {
        width: 120px;
        height: 120px;
    }
    
    .landing-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .landing-btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .landing-features {
        grid-template-columns: 1fr;
    }
    
    .services-section {
        padding: 60px var(--qmf-space-4, 1rem);
    }
    
    body.authenticated .dashboard-section {
        padding: var(--qmf-space-6, 1.5rem) 0;
    }
    
    body.authenticated .dashboard-wrapper {
        padding: 0 var(--qmf-space-4, 1rem);
    }
    
    body.authenticated .tab-container {
        overflow-x: auto;
        flex-wrap: nowrap;
        justify-content: flex-start;
        padding-bottom: var(--qmf-space-2, 0.5rem);
    }
    
    body.authenticated .tab-button {
        white-space: nowrap;
        padding: var(--qmf-space-2, 0.5rem) var(--qmf-space-4, 1rem);
        font-size: 0.9rem;
    }
    
    body.authenticated .tab-button span {
        display: none;
    }
    
    body.authenticated .quick-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--qmf-space-3, 0.75rem);
    }
    
    body.authenticated .stat-card {
        padding: var(--qmf-space-4, 1rem);
    }
    
    body.authenticated .stat-number {
        font-size: 1.5rem;
    }
    
    body.authenticated .classes-grid {
        grid-template-columns: 1fr;
    }
    
    body.authenticated .dashboard-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    body.authenticated .dashboard-actions {
        width: 100%;
    }
    
    body.authenticated .dashboard-actions .btn {
        flex: 1;
        justify-content: center;
    }
}

@media (min-width: 769px) {
    .mobile-only {
        display: none !important;
    }
    
    .unified-floating-actions {
        display: none !important;
    }
}

/* Hide old header */
.header:not(.qm-header) {
    display: none !important;
}