/**
 * ============================================================
 * 🎨 BOOBA PLATFORM - LANDING STYLES
 * ============================================================
 * Système de variables CSS pour personnalisation facile
 * Support multi-thèmes prêt
 */

/* ============================================================
 * 🌈 VARIABLES CSS - THÈME PAR DÉFAUT (BOOBA)
 * ============================================================ */

:root {
    /* 🎨 Couleurs principales */
    --color-primary: #6c5ce7;
    --color-primary-light: #a29bfe;
    --color-primary-dark: #5541d7;
    --color-primary-gradient: linear-gradient(135deg, #6c5ce7 0%, #a29bfe 100%);
    
    /* 🎨 Couleurs secondaires */
    --color-secondary: #00b894;
    --color-secondary-light: #55efc4;
    --color-secondary-dark: #009432;
    
    /* 🎨 Couleurs d'accent */
    --color-accent: #fd79a8;
    --color-accent-light: #ffeaa7;
    
    /* 🎨 Couleurs fonctionnelles */
    --color-success: #27ae60;
    --color-success-light: #2ecc71;
    --color-success-bg: rgba(39, 174, 96, 0.12);
    --color-success-border: rgba(39, 174, 96, 0.3);
    
    --color-danger: #e74c3c;
    --color-danger-light: #ff7675;
    --color-danger-bg: rgba(231, 76, 60, 0.12);
    --color-danger-border: rgba(231, 76, 60, 0.3);
    
    --color-warning: #fdcb6e;
    --color-info: #74b9ff;
    
    /* 🎨 Neutres */
    --color-white: #ffffff;
    --color-gray-50: #f8f9fc;
    --color-gray-100: #f1f3f5;
    --color-gray-200: #e9ecef;
    --color-gray-300: #dee2e6;
    --color-gray-400: #ced4da;
    --color-gray-500: #adb5bd;
    --color-gray-600: #6c757d;
    --color-gray-700: #495057;
    --color-gray-800: #343a40;
    --color-gray-900: #212529;
    --color-black: #1a1a2e;
    
    /* 🎨 Backgrounds */
    --bg-body: linear-gradient(135deg, #f5f7fa 0%, #dfe6e9 100%);
    --bg-header: var(--color-black);
    --bg-footer: var(--color-black);
    --bg-card: var(--color-white);
    --bg-logo: var(--color-gray-50);
    
    /* 🎨 Textes */
    --text-primary: var(--color-black);
    --text-secondary: #555555;
    --text-muted: #888888;
    --text-header: var(--color-white);
    --text-footer: rgba(255, 255, 255, 0.7);
    
    /* 🎨 Bordures */
    --border-color: rgba(0, 0, 0, 0.05);
    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 20px;
    --border-radius-xl: 30px;
    --border-radius-full: 9999px;
    
    /* 🎨 Ombres */
    --shadow-xs: 0 2px 4px rgba(0, 0, 0, 0.02);
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 8px 20px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 30px 60px rgba(0, 0, 0, 0.15);
    --shadow-inset: inset 0 2px 6px rgba(0, 0, 0, 0.02);
    
    /* 🎨 Typographie */
    --font-family-base: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-xs: 0.7rem;
    --font-size-sm: 0.85rem;
    --font-size-base: 1rem;
    --font-size-md: 1.1rem;
    --font-size-lg: 1.2rem;
    --font-size-xl: 1.4rem;
    --font-size-2xl: 1.8rem;
    --font-size-3xl: 2.5rem;
    --font-size-4xl: 3rem;
    
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    --line-height-tight: 1.2;
    --line-height-base: 1.5;
    --line-height-relaxed: 1.6;
    
    /* 🎨 Espacements */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-base: 16px;
    --spacing-lg: 20px;
    --spacing-xl: 24px;
    --spacing-2xl: 28px;
    --spacing-3xl: 32px;
    --spacing-4xl: 40px;
    --spacing-5xl: 48px;
    
    /* 🎨 Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.2s ease;
    --transition-slow: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* 🎨 Layout */
    --container-max-width: 1400px;
    --header-height: auto;
    --card-min-width: 280px;
    
    /* 🎨 Z-index */
    --z-header: 100;
    --z-modal: 1000;
    --z-tooltip: 1100;
}

/* ============================================================
 * 🌙 THÈME SOMBRE (optionnel - à activer avec classe)
 * ============================================================ */

[data-theme="dark"] {
    --color-primary: #a29bfe;
    --color-primary-light: #dfe6e9;
    --color-primary-dark: #6c5ce7;
    
    --bg-body: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    --bg-header: #0f0f1a;
    --bg-footer: #0f0f1a;
    --bg-card: #1e2746;
    --bg-logo: #2a3a5e;
    
    --text-primary: #e2e8f0;
    --text-secondary: #a0aec0;
    --text-muted: #718096;
    --text-header: #ffffff;
    --text-footer: rgba(255, 255, 255, 0.6);
    
    --border-color: rgba(255, 255, 255, 0.08);
    --shadow-md: 0 8px 20px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.4);
}

/* ============================================================
 * 🎄 THÈME FESTIF / SAISONNIER (exemple)
 * ============================================================ */

[data-theme="festive"] {
    --color-primary: #e17055;
    --color-primary-light: #fab1a0;
    --color-primary-dark: #d63031;
    
    --color-success: #00cec9;
    --color-danger: #d63031;
    
    --bg-body: linear-gradient(135deg, #fff5f5 0%, #ffe0e0 100%);
    --bg-header: #2d3436;
    --bg-footer: #2d3436;
}

/* ============================================================
 * 🎨 THÈME MINIMAL / ÉPURÉ
 * ============================================================ */

[data-theme="minimal"] {
    --color-primary: #2c3e50;
    --color-primary-light: #34495e;
    --color-primary-dark: #1a252f;
    
    --color-success: #27ae60;
    --color-danger: #c0392b;
    
    --bg-body: #fafafa;
    --bg-header: #ffffff;
    --bg-footer: #f5f5f5;
    --bg-card: #ffffff;
    
    --text-header: #2c3e50;
    --text-footer: #7f8c8d;
    
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.06);
    
    --border-radius-lg: 8px;
}

/* ============================================================
 * 🔤 RESET & BASE
 * ============================================================ */

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.landing-page {
    font-family: var(--font-family-base);
    background: var(--bg-body);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    color: var(--text-primary);
    line-height: var(--line-height-base);
}

/* ============================================================
 * 📋 HEADER
 * ============================================================ */

.main-header {
    background: var(--bg-header);
    color: var(--text-header);
    padding: var(--spacing-base) var(--spacing-3xl);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: var(--z-header);
    border-bottom: 1px solid var(--border-color);
}

.header-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-base);
}

/* Logo */
.logo-area {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo-img {
    width: 48px;
    height: 48px;
    object-fit: contain;
    border-radius: var(--border-radius-sm);
    background: rgba(255, 255, 255, 0.1);
    padding: 6px;
    transition: transform var(--transition-base);
}

.logo-img:hover {
    transform: scale(1.05);
}

.platform-name {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    letter-spacing: 1px;
    background: var(--color-primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Navigation auth */
.auth-nav {
    display: flex;
    gap: var(--spacing-base);
}

.btn-auth {
    padding: 10px var(--spacing-xl);
    border-radius: var(--border-radius-xl);
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-base);
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    border: 2px solid transparent;
    cursor: pointer;
}

.btn-login {
    background: transparent;
    color: var(--text-header);
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-login:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--text-header);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

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

.btn-register:hover {
    background: var(--color-success-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(46, 204, 113, 0.3);
}

.btn-auth .icon {
    font-size: var(--font-size-lg);
}

/* ============================================================
 * 📄 MAIN CONTENT
 * ============================================================ */

.landing-main {
    flex: 1;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: var(--spacing-3xl) var(--spacing-3xl);
    width: 100%;
}

/* ============================================================
 * 👋 WELCOME SECTION
 * ============================================================ */

.welcome-section {
    text-align: center;
    margin-bottom: var(--spacing-5xl);
}

.welcome-section h1 {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: var(--line-height-tight);
}

.welcome-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
}

/* ============================================================
 * 📱 APPLICATIONS SECTION
 * ============================================================ */

.applications-section {
    margin-top: var(--spacing-base);
}

.section-title {
    text-align: center;
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-4xl);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-base);
}

.title-icon {
    opacity: 0.6;
    font-size: var(--font-size-2xl);
}

/* ============================================================
 * 🃏 APPS GRID
 * ============================================================ */

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(var(--card-min-width), 1fr));
    gap: var(--spacing-2xl);
    justify-content: center;
}

/* ============================================================
 * 🎴 APP CARD
 * ============================================================ */

.app-card {
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl) var(--spacing-lg);
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-slow);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.app-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    transition: height var(--transition-base);
}

.app-card--public::before {
    background: linear-gradient(90deg, var(--color-success), var(--color-success-light));
}

.app-card--private::before {
    background: linear-gradient(90deg, var(--color-danger), var(--color-danger-light));
}

.app-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.app-card:hover::before {
    height: 8px;
}

/* Badge */
.app-card__badge {
    position: absolute;
    top: var(--spacing-base);
    right: var(--spacing-base);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    padding: var(--spacing-xs) 10px;
    border-radius: var(--border-radius-xl);
    letter-spacing: 0.5px;
    backdrop-filter: blur(4px);
}

.app-card__badge--public {
    background: var(--color-success-bg);
    color: var(--color-success);
    border: 1px solid var(--color-success-border);
}

.app-card__badge--private {
    background: var(--color-danger-bg);
    color: var(--color-danger);
    border: 1px solid var(--color-danger-border);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.lock-icon {
    font-size: 0.8rem;
}

/* Logo */
.app-card__logo {
    width: 100px;
    height: 100px;
    margin: var(--spacing-sm) auto var(--spacing-base);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-logo);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-inset);
}

.app-card__logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: transform var(--transition-base);
}

.app-card:hover .app-card__logo img {
    transform: scale(1.05);
}

/* Content */
.app-card__content {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.app-card__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    line-height: var(--line-height-tight);
}

.app-card__description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: var(--line-height-base);
}

/* Footer */
.app-card__footer {
    margin-top: auto;
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.app-card__link {
    color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.app-card:hover .app-card__link {
    color: var(--color-primary-dark);
}

/* ============================================================
 * 📭 NO APPS MESSAGE
 * ============================================================ */

.no-apps-message {
    text-align: center;
    padding: var(--spacing-5xl);
    background: var(--bg-card);
    border-radius: var(--border-radius-md);
    color: var(--text-muted);
    font-size: var(--font-size-md);
    border: 1px dashed var(--border-color);
}

/* ============================================================
 * 👣 FOOTER
 * ============================================================ */

.main-footer {
    background: var(--bg-footer);
    color: var(--text-footer);
    text-align: center;
    padding: var(--spacing-lg);
    margin-top: var(--spacing-4xl);
    border-top: 1px solid var(--border-color);
}

.footer-text {
    font-size: var(--font-size-sm);
}

/* ============================================================
 * 📱 RESPONSIVE
 * ============================================================ */

@media (max-width: 768px) {
    :root {
        --font-size-3xl: 2rem;
        --font-size-2xl: 1.5rem;
        --spacing-3xl: 20px;
        --spacing-5xl: 32px;
    }
    
    .header-container {
        flex-direction: column;
        gap: var(--spacing-base);
    }
    
    .platform-name {
        font-size: var(--font-size-xl);
    }
    
    .auth-nav {
        width: 100%;
        justify-content: center;
    }
    
    .btn-auth {
        flex: 1;
        justify-content: center;
        max-width: 200px;
    }
    
    .apps-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .app-card {
        padding: var(--spacing-lg) var(--spacing-base);
    }
    
    .app-card__logo {
        width: 80px;
        height: 80px;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-3xl: 1.8rem;
        --spacing-3xl: 16px;
    }
    
    .landing-main {
        padding: var(--spacing-base);
    }
    
    .auth-nav {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn-auth {
        max-width: none;
    }
    
    .section-title {
        font-size: var(--font-size-xl);
    }
}

/* ============================================================
 * ♿ ACCESSIBILITÉ
 * ============================================================ */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible */
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ============================================================
 * 🖨️ PRINT STYLES
 * ============================================================ */

@media print {
    .main-header,
    .auth-nav,
    .main-footer,
    .app-card__badge {
        display: none;
    }
    
    body.landing-page {
        background: white;
    }
    
    .app-card {
        box-shadow: none;
        border: 1px solid #ccc;
        break-inside: avoid;
    }
}