/**
 * Gallia.ai - Stylesheet Principal
 * Version : 1.0
 * Date : 06 novembre 2025
 *
 * Branding : Émeraude/Teal (Vert-bleu)
 * Thème : Dark mode uniquement
 */

/* ========================================
   VARIABLES CSS GALLIA
   ======================================== */
:root {
    /* Couleurs primaires Gallia - Teal/Émeraude */
    --gallia-primary: #14b8a6;
    --gallia-primary-dark: #0d9488;
    --gallia-primary-light: #2dd4bf;
    --gallia-primary-pale: #5eead4;
    --gallia-primary-deep: #0f766e;

    /* Backgrounds dark */
    --gallia-bg-dark: #0f1419;
    --gallia-bg-secondary: #1a2332;
    --gallia-bg-card: #1f2937;
    --gallia-bg-hover: #2d3748;

    /* Textes */
    --gallia-text-primary: #e8eef5;
    --gallia-text-secondary: #94a3b8;
    --gallia-text-muted: #64748b;

    /* Borders */
    --gallia-border: #2d4563;
    --gallia-border-light: #374151;

    /* Couleurs sémantiques */
    --gallia-success: #10b981;
    --gallia-warning: #f59e0b;
    --gallia-error: #ef4444;
    --gallia-info: #3b82f6;

    /* Spacing */
    --gallia-spacing-xs: 4px;
    --gallia-spacing-sm: 8px;
    --gallia-spacing-md: 16px;
    --gallia-spacing-lg: 24px;
    --gallia-spacing-xl: 32px;
    --gallia-spacing-2xl: 48px;

    /* Border radius */
    --gallia-radius-sm: 4px;
    --gallia-radius-md: 8px;
    --gallia-radius-lg: 12px;
    --gallia-radius-xl: 16px;
    --gallia-radius-full: 9999px;

    /* Shadows */
    --gallia-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --gallia-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --gallia-shadow-lg: 0 8px 25px rgba(20, 184, 166, 0.3);
    --gallia-shadow-xl: 0 12px 40px rgba(20, 184, 166, 0.4);

    /* Transitions */
    --gallia-transition-fast: 0.15s ease;
    --gallia-transition-base: 0.2s ease;
    --gallia-transition-slow: 0.3s ease;
}

/* ========================================
   RESET & BASE
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--gallia-bg-dark);
    color: var(--gallia-text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========================================
   TYPOGRAPHIE
   ======================================== */
h1, .h1 {
    font-size: 42px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--gallia-spacing-lg);
    background: linear-gradient(135deg, var(--gallia-primary), var(--gallia-primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2, .h2 {
    font-size: 32px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--gallia-spacing-md);
    color: var(--gallia-text-primary);
}

h3, .h3 {
    font-size: 22px;
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: var(--gallia-spacing-sm);
    color: var(--gallia-text-primary);
}

p {
    font-size: 15px;
    font-weight: 400;
    line-height: 1.7;
    margin-bottom: var(--gallia-spacing-md);
    color: var(--gallia-text-secondary);
}

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

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

/* ========================================
   LOGO GALLIA
   ======================================== */
.gallia-logo {
    display: flex;
    align-items: center;
    gap: var(--gallia-spacing-md);
    text-decoration: none;
}

.gallia-logo-icon {
    width: 60px;
    height: 60px;
    position: relative;
}

/* Logo SVG - Forme géométrique "G" stylisé */
.gallia-logo-icon svg {
    width: 100%;
    height: 100%;
}

.gallia-logo-text-container {
    display: flex;
    flex-direction: column;
}

.gallia-logo-name {
    font-size: 32px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--gallia-primary), var(--gallia-primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.gallia-logo-baseline {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 2.5px;
    color: var(--gallia-text-muted);
    margin-top: 5px;
    font-weight: 600;
}

/* ========================================
   BOUTONS GALLIA
   ======================================== */
.btn-gallia {
    padding: 12px 28px;
    border-radius: var(--gallia-radius-md);
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    border: none;
    transition: all var(--gallia-transition-base);
    display: inline-flex;
    align-items: center;
    gap: var(--gallia-spacing-sm);
    font-family: inherit;
    text-decoration: none;
}

.btn-gallia-primary {
    background: linear-gradient(135deg, var(--gallia-primary) 0%, var(--gallia-primary-dark) 100%);
    color: white;
    box-shadow: var(--gallia-shadow-md);
}

.btn-gallia-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--gallia-shadow-lg);
}

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

.btn-gallia-secondary:hover {
    background: var(--gallia-bg-hover);
    border-color: var(--gallia-primary);
}

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

.btn-gallia-outline:hover {
    background: rgba(20, 184, 166, 0.1);
    border-color: var(--gallia-primary-light);
    color: var(--gallia-primary-light);
}

/* ========================================
   CARDS GALLIA
   ======================================== */
.card-gallia {
    border-radius: var(--gallia-radius-lg);
    overflow: hidden;
    box-shadow: var(--gallia-shadow-md);
    transition: transform var(--gallia-transition-base), box-shadow var(--gallia-transition-base);
    border: 1px solid var(--gallia-border);
    background: var(--gallia-bg-card);
}

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

.card-header-gallia {
    background: linear-gradient(135deg, var(--gallia-primary) 0%, var(--gallia-primary-dark) 100%);
    color: white;
    padding: var(--gallia-spacing-lg);
}

.card-icon-gallia {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--gallia-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--gallia-spacing-md);
}

.card-title-gallia {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 6px;
}

.card-subtitle-gallia {
    font-size: 13px;
    opacity: 0.9;
}

.card-body-gallia {
    padding: var(--gallia-spacing-lg);
    background: var(--gallia-bg-card);
}

.card-body-gallia p {
    font-size: 14px;
    color: var(--gallia-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--gallia-spacing-md);
}

/* ========================================
   BADGES GALLIA
   ======================================== */
.badge-gallia {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: var(--gallia-radius-md);
    font-size: 12px;
    font-weight: 600;
}

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

.badge-gallia-secondary {
    background: var(--gallia-bg-secondary);
    color: var(--gallia-text-primary);
    border: 1px solid var(--gallia-border);
}

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

.badge-gallia-warning {
    background: var(--gallia-warning);
    color: white;
}

.badge-gallia-error {
    background: var(--gallia-error);
    color: white;
}

/* ========================================
   FORMS GALLIA
   ======================================== */
.form-group {
    margin-bottom: var(--gallia-spacing-lg);
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--gallia-text-primary);
    margin-bottom: var(--gallia-spacing-sm);
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--gallia-border);
    border-radius: var(--gallia-radius-md);
    background: var(--gallia-bg-secondary);
    color: var(--gallia-text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: border-color var(--gallia-transition-base);
}

.form-input:focus {
    outline: none;
    border-color: var(--gallia-primary);
}

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

/* ========================================
   LAYOUT
   ======================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--gallia-spacing-lg);
}

.section {
    padding: var(--gallia-spacing-2xl) 0;
}

/* ========================================
   UTILITIES
   ======================================== */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--gallia-spacing-xs); }
.mt-2 { margin-top: var(--gallia-spacing-sm); }
.mt-3 { margin-top: var(--gallia-spacing-md); }
.mt-4 { margin-top: var(--gallia-spacing-lg); }
.mt-5 { margin-top: var(--gallia-spacing-xl); }

.mb-1 { margin-bottom: var(--gallia-spacing-xs); }
.mb-2 { margin-bottom: var(--gallia-spacing-sm); }
.mb-3 { margin-bottom: var(--gallia-spacing-md); }
.mb-4 { margin-bottom: var(--gallia-spacing-lg); }
.mb-5 { margin-bottom: var(--gallia-spacing-xl); }

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

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

.gap-2 { gap: var(--gallia-spacing-sm); }
.gap-3 { gap: var(--gallia-spacing-md); }
.gap-4 { gap: var(--gallia-spacing-lg); }

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 768px) {
    h1, .h1 {
        font-size: 32px;
    }

    h2, .h2 {
        font-size: 24px;
    }

    h3, .h3 {
        font-size: 18px;
    }

    .gallia-logo-name {
        font-size: 26px;
    }

    .gallia-logo-baseline {
        font-size: 8px;
    }

    .container {
        padding: 0 var(--gallia-spacing-md);
    }
}

@media (max-width: 480px) {
    h1, .h1 {
        font-size: 24px;
    }

    h2, .h2 {
        font-size: 20px;
    }

    .gallia-logo-name {
        font-size: 22px;
    }

    .gallia-logo-icon {
        width: 50px;
        height: 50px;
    }
}