/* ============================================
   FindSportsCoach.com - Minimalist Design System
   Clean, Modern, Professional
   ============================================ */

/* Font Import - Clean Sans-Serif */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* ===== CSS RESET ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ===== DESIGN TOKENS ===== */
:root {
    /* Primary - Soft Blue */
    --primary: #3B82F6;
    --primary-hover: #2563EB;
    --primary-light: #EFF6FF;
    --primary-50: #F0F9FF;

    /* Neutral - Slate */
    --slate-50: #F8FAFC;
    --slate-100: #F1F5F9;
    --slate-200: #E2E8F0;
    --slate-300: #CBD5E1;
    --slate-400: #94A3B8;
    --slate-500: #64748B;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1E293B;
    --slate-900: #0F172A;

    /* Semantic Colors */
    --success: #10B981;
    --success-light: #D1FAE5;
    --warning: #F59E0B;
    --warning-light: #FEF3C7;
    --danger: #EF4444;
    --danger-light: #FEE2E2;
    --info: #3B82F6;
    --info-light: #DBEAFE;

    /* Background */
    --bg-white: #FFFFFF;
    --bg-page: #FAFBFC;
    --bg-subtle: #F8FAFC;

    /* Text */
    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --text-muted: #94A3B8;

    /* Borders */
    --border-light: #F1F5F9;
    --border-default: #E2E8F0;
    --border-strong: #CBD5E1;

    /* Shadows - Subtle */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.06), 0 4px 6px -4px rgba(0, 0, 0, 0.04);

    /* Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;

    /* Spacing Scale */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
}

/* ===== BASE STYLES ===== */
html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-page);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-hover);
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.375rem; }
h4 { font-size: 1.125rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== HEADER ===== */
header {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-light);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    transition: opacity var(--transition-fast);
}

.logo:hover {
    opacity: 0.8;
    color: var(--text-primary);
}

.main-nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.main-nav a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.main-nav a:hover {
    color: var(--text-primary);
    background: var(--bg-subtle);
}

.btn-become-coach {
    background: var(--primary) !important;
    color: white !important;
}

.btn-become-coach:hover {
    background: var(--primary-hover) !important;
    color: white !important;
}

/* Schedule Demo Button */
.btn-schedule-demo {
    background: linear-gradient(135deg, #F97316 0%, #EA580C 100%) !important;
    color: white !important;
    padding: 8px 16px !important;
    border-radius: var(--radius-md) !important;
    font-weight: 600 !important;
    font-size: 0.85rem !important;
    box-shadow: 0 2px 8px rgba(249, 115, 22, 0.3);
    transition: all var(--transition-fast) !important;
    display: inline-flex !important;
    align-items: center !important;
    gap: 6px !important;
}

.btn-schedule-demo:hover {
    background: linear-gradient(135deg, #EA580C 0%, #C2410C 100%) !important;
    color: white !important;
    box-shadow: 0 4px 12px rgba(249, 115, 22, 0.4);
    transform: translateY(-1px);
}

@media (max-width: 900px) {
    .btn-schedule-demo {
        width: auto !important;
        margin: var(--space-2) var(--space-4) !important;
    }
}

/* Fix nav button text colors */
.main-nav .btn {
    color: white !important;
}

.main-nav .btn-primary {
    background: var(--primary) !important;
    color: white !important;
}

.main-nav .btn-primary:hover {
    background: var(--primary-hover) !important;
    color: white !important;
}

.main-nav .btn-ghost {
    color: var(--text-primary) !important;
    background: transparent !important;
}

.main-nav .btn-ghost:hover {
    background: var(--bg-subtle) !important;
    color: var(--primary) !important;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}

.mobile-menu-toggle span {
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

@media (max-width: 900px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-white);
        border-bottom: 1px solid var(--border-default);
        max-height: 0;
        overflow: hidden;
        transition: max-height var(--transition-base);
    }

    .main-nav.active {
        max-height: 500px;
    }

    .main-nav ul {
        flex-direction: column;
        padding: var(--space-4);
        gap: 0;
    }

    .main-nav li {
        width: 100%;
    }

    .main-nav a {
        display: block;
        padding: var(--space-3) var(--space-4);
        border-radius: var(--radius-sm);
    }
}

/* ===== CONTAINER ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-8) var(--space-6);
}

@media (max-width: 768px) {
    .container {
        padding: var(--space-6) var(--space-4);
    }
}

/* ===== CARDS ===== */
.card {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    margin-bottom: var(--space-6);
    transition: box-shadow var(--transition-fast);
}

.card:hover {
    box-shadow: var(--shadow-sm);
}

.card-header {
    padding-bottom: var(--space-4);
    margin-bottom: var(--space-5);
    border-bottom: 1px solid var(--border-light);
}

.card-header h2 {
    font-size: 1.125rem;
    font-weight: 600;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 10px 20px;
    font-size: 0.9rem;
    font-weight: 500;
    font-family: inherit;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-hover);
    color: white;
}

.btn-secondary {
    background: var(--slate-100);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--slate-200);
}

.btn-success {
    background: var(--success);
    color: white;
}

.btn-success:hover {
    background: #059669;
    color: white;
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover {
    background: #DC2626;
    color: white;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-default);
    color: var(--text-primary);
}

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

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

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

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1rem;
}

/* ===== FORMS ===== */
.form-group {
    margin-bottom: var(--space-5);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-2);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: 12px 14px;
    font-size: 0.9rem;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--bg-white);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.form-control:hover {
    border-color: var(--border-strong);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-control::placeholder {
    color: var(--text-muted);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

/* ===== ALERTS ===== */
.alert {
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-5);
    font-size: 0.9rem;
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.alert-success {
    background: var(--success-light);
    color: #065F46;
    border: 1px solid #A7F3D0;
}

.alert-error {
    background: var(--danger-light);
    color: #991B1B;
    border: 1px solid #FECACA;
}

.alert-warning {
    background: var(--warning-light);
    color: #92400E;
    border: 1px solid #FDE68A;
}

.alert-info {
    background: var(--info-light);
    color: #1E40AF;
    border: 1px solid #BFDBFE;
}

/* ===== TABLES ===== */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: var(--space-3) var(--space-4);
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}

.table th {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    background: var(--bg-subtle);
}

.table tbody tr:hover {
    background: var(--slate-50);
}

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

/* ===== BADGES ===== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--radius-full);
}

.badge-success {
    background: var(--success-light);
    color: #065F46;
}

.badge-warning {
    background: var(--warning-light);
    color: #92400E;
}

.badge-danger {
    background: var(--danger-light);
    color: #991B1B;
}

.badge-info {
    background: var(--info-light);
    color: #1E40AF;
}

.badge-primary {
    background: var(--primary-light);
    color: var(--primary);
}

/* ===== DASHBOARD GRID ===== */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-5);
    margin-top: var(--space-6);
}

.stat-card {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    text-align: center;
    transition: all var(--transition-fast);
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border-default);
}

.stat-card h3 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--space-2);
}

.stat-card p {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ===== FOOTER ===== */
footer {
    background: var(--slate-900);
    color: white;
    padding: var(--space-16) 0 var(--space-8);
    margin-top: auto;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: var(--space-10);
    margin-bottom: var(--space-10);
}

.footer-section h3 {
    color: white;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--space-5);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-section p {
    color: var(--slate-400);
    font-size: 0.9rem;
    line-height: 1.7;
}

.footer-section a {
    display: block;
    color: var(--slate-400);
    font-size: 0.9rem;
    margin-bottom: var(--space-3);
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: white;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.footer-logo span {
    font-size: 1.125rem;
    font-weight: 600;
    color: white;
}

.footer-logo svg {
    width: 32px;
    height: 32px;
}

.social-links {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-5);
}

.social-link {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: var(--slate-800);
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    transition: all var(--transition-fast);
    margin: 0 !important;
}

.social-link:hover {
    background: var(--primary);
}

.social-link svg {
    width: 16px;
    height: 16px;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-8);
    border-top: 1px solid var(--slate-800);
    color: var(--slate-500);
    font-size: 0.875rem;
}

@media (max-width: 900px) {
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-8);
    }
}

@media (max-width: 600px) {
    footer {
        padding: var(--space-10) 0 var(--space-6);
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-8);
        text-align: center;
    }

    .footer-logo {
        justify-content: center;
    }

    .social-links {
        justify-content: center;
    }
}

/* ===== AUTH PAGES ===== */
.auth-container {
    max-width: 420px;
    margin: var(--space-16) auto;
    padding: 0 var(--space-5);
}

.auth-card {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    padding: var(--space-10);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.auth-header h2 {
    font-size: 1.5rem;
    margin-bottom: var(--space-2);
}

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

.auth-footer {
    text-align: center;
    margin-top: var(--space-6);
    padding-top: var(--space-6);
    border-top: 1px solid var(--border-light);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.auth-footer a {
    font-weight: 500;
}

.divider {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin: var(--space-6) 0;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border-default);
}

/* ===== COACH CARDS ===== */
.coach-card {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-fast);
}

.coach-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border-default);
}

.coach-card-header {
    height: 80px;
    background: var(--primary);
    position: relative;
}

.coach-card-avatar {
    width: 72px;
    height: 72px;
    border-radius: var(--radius-full);
    border: 3px solid var(--bg-white);
    position: absolute;
    bottom: -36px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--slate-100);
    object-fit: cover;
}

.coach-card-body {
    padding: 48px var(--space-5) var(--space-5);
    text-align: center;
}

.coach-card-name {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-1);
}

.coach-card-sport {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--space-3);
}

.coach-card-rating {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2px;
    color: #FBBF24;
    margin-bottom: var(--space-4);
}

/* ===== VIDEO CONTAINER ===== */
.video-container {
    position: relative;
    width: 100%;
    max-width: 900px;
    margin: var(--space-6) auto;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--slate-900);
}

.video-container video {
    width: 100%;
    display: block;
}

/* ===== CHAT ===== */
.chat-container {
    background: var(--bg-white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    height: 400px;
    display: flex;
    flex-direction: column;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-4);
}

.message {
    margin-bottom: var(--space-4);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    max-width: 75%;
}

.message.sent {
    background: var(--primary);
    color: white;
    margin-left: auto;
    border-bottom-right-radius: var(--radius-sm);
}

.message.received {
    background: var(--slate-100);
    border-bottom-left-radius: var(--radius-sm);
}

.message-time {
    font-size: 0.7rem;
    opacity: 0.7;
    margin-top: var(--space-1);
}

.chat-input {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-4);
    border-top: 1px solid var(--border-light);
}

.chat-input input {
    flex: 1;
}

/* ===== UPLOAD ZONE ===== */
.upload-zone {
    border: 2px dashed var(--border-default);
    border-radius: var(--radius-lg);
    padding: var(--space-12) var(--space-6);
    text-align: center;
    background: var(--bg-subtle);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.upload-zone-icon {
    font-size: 3rem;
    color: var(--text-muted);
    margin-bottom: var(--space-4);
}

.upload-zone h3 {
    margin-bottom: var(--space-2);
}

.upload-zone p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ===== TABS ===== */
.tabs {
    display: flex;
    gap: var(--space-1);
    border-bottom: 1px solid var(--border-default);
    margin-bottom: var(--space-6);
}

.tab-button {
    padding: var(--space-3) var(--space-5);
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    position: relative;
}

.tab-button:hover {
    color: var(--text-primary);
}

.tab-button.active {
    color: var(--primary);
}

.tab-button.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* ===== FAQ ACCORDION ===== */
.faq-item {
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-3);
    overflow: hidden;
}

.faq-question {
    padding: var(--space-4) var(--space-5);
    background: var(--bg-white);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 500;
    transition: background var(--transition-fast);
}

.faq-question:hover {
    background: var(--bg-subtle);
}

.faq-question-icon {
    transition: transform var(--transition-base);
    color: var(--text-muted);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer-content {
    padding: var(--space-5);
    background: var(--bg-subtle);
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== PROGRESS BAR ===== */
.progress {
    height: 6px;
    background: var(--slate-100);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--primary);
    border-radius: var(--radius-full);
    transition: width var(--transition-base);
}

/* ===== SPINNER ===== */
.spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border-default);
    border-top-color: var(--primary);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
    margin: var(--space-6) auto;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===== EMPTY STATE ===== */
.empty-state {
    text-align: center;
    padding: var(--space-16) var(--space-6);
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: var(--space-4);
    opacity: 0.5;
}

.empty-state h3 {
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.empty-state p {
    margin-bottom: var(--space-6);
}

/* ===== RATING STARS ===== */
.rating-stars {
    display: inline-flex;
    gap: 2px;
}

.rating-stars .star {
    color: var(--slate-200);
    font-size: 1rem;
}

.rating-stars .star.filled {
    color: #FBBF24;
}

/* ===== TOOLTIP ===== */
.tooltip {
    position: relative;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-4px);
    padding: var(--space-2) var(--space-3);
    background: var(--slate-800);
    color: white;
    font-size: 0.75rem;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
}

.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-8px);
}

/* ===== UTILITY CLASSES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-primary { color: var(--primary); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-muted { color: var(--text-muted); }

.bg-primary { background: var(--primary); }
.bg-light { background: var(--bg-subtle); }
.bg-white { background: var(--bg-white); }

.mt-1 { margin-top: var(--space-2); }
.mt-2 { margin-top: var(--space-4); }
.mt-3 { margin-top: var(--space-6); }
.mt-4 { margin-top: var(--space-8); }
.mb-1 { margin-bottom: var(--space-2); }
.mb-2 { margin-bottom: var(--space-4); }
.mb-3 { margin-bottom: var(--space-6); }
.mb-4 { margin-bottom: var(--space-8); }

.p-1 { padding: var(--space-2); }
.p-2 { padding: var(--space-4); }
.p-3 { padding: var(--space-6); }
.p-4 { padding: var(--space-8); }

.d-flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.align-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--space-2); }
.gap-2 { gap: var(--space-4); }
.gap-3 { gap: var(--space-6); }

.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: var(--radius-full); }

.shadow { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

.hidden { display: none; }
.visible { display: block; }

/* Grid */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 calc(var(--space-3) * -1);
}

.col {
    flex: 1;
    padding: 0 var(--space-3);
}

.col-2 { flex: 0 0 50%; padding: 0 var(--space-3); }
.col-3 { flex: 0 0 33.333%; padding: 0 var(--space-3); }
.col-4 { flex: 0 0 25%; padding: 0 var(--space-3); }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }

    .col-2, .col-3, .col-4 {
        flex: 0 0 100%;
    }

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

    .card {
        padding: var(--space-5);
    }

    .btn {
        width: 100%;
    }

    .btn:not(.btn-sm) {
        padding: 12px 16px;
    }

    .auth-card {
        padding: var(--space-6);
    }

    .auth-container {
        margin: var(--space-8) auto;
    }
}

@media (max-width: 480px) {
    :root {
        font-size: 15px;
    }

    .container {
        padding: var(--space-4) var(--space-3);
    }

    .stat-card h3 {
        font-size: 2rem;
    }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fadeIn { animation: fadeIn 0.3s ease; }
.animate-fadeInUp { animation: fadeInUp 0.4s ease; }

/* ===== HERO SECTION (Homepage) ===== */
.hero, .dashboard-hero, .dashboard-welcome,
.about-hero, .faq-hero, .contact-hero, .coach-hero {
    color: white;
}

.hero h1, .hero p,
.dashboard-hero h1, .dashboard-hero p,
.dashboard-welcome h1, .dashboard-welcome p,
.about-hero h1, .about-hero p,
.faq-hero h1, .faq-hero p,
.contact-hero h1, .contact-hero p,
.coach-hero h1, .coach-hero p {
    color: white;
}

}