/* ==========================================================================
   RB SOLUTIONS - GLOBAL STYLESHEET
   ========================================================================== */

/* 1. VARIABLES DESIGN SYSTEM
   ========================================================================== */
:root {
    /* Palette Principale */
    --primary-color: #0d6efd;          /* Bleu Tech moderne */
    --primary-hover: #0b5ed7;          /* Survol action */
    --accent-color: #00f0ff;           /* Cyber Cyan / Accents lumineux */
    
    /* Fonds & Surfaçages (Theme Dark par défaut, épuré) */
    --bg-main: #0f172a;                /* Bleu nuit profond */
    --bg-surface: #1e293b;             /* Arrière-plan cartes / conteneurs */
    --bg-surface-elevated: #334155;    /* Survol cartes / modales */
    
    /* Typographie & Couleurs de Texte */
    --text-main: #f8fafc;               /* Texte principal très lisible */
    --text-muted: #94a3b8;              /* Texte secondaire / sous-titres */
    --text-inverse: #0f172a;            /* Texte sur fond clair */
    
    /* Bordures & Séparateurs */
    --border-color: rgba(255, 255, 255, 0.1);
    --border-focus: rgba(13, 110, 253, 0.5);

    /* Typographies */
    --font-heading: 'Inter', system-ui, -apple-system, sans-serif;
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;
    --font-code: 'JetBrains Mono', monospace;

    /* Spacements */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;

    /* Rayons de bordure (Border Radius) */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;

    /* Ombres & Effets de Profondeur */
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 25px rgba(0, 240, 255, 0.15);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

/* 2. RESET & BASE
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* 3. TYPOGRAPHIE
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-main);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.5rem); }
h3 { font-size: 1.5rem; }

p {
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

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

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

/* 4. COMPOSANTS RÉUTILISABLES
   ========================================================================== */

/* Conteneur principal */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Boutons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 42px;
    padding: 0 1.25rem;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    box-sizing: border-box;
    cursor: pointer;
    text-decoration: none;
    line-height: 1;
    transition: all var(--transition-fast);
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    box-shadow: 0 0 15px rgba(13, 110, 253, 0.4);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--border-color);
    color: var(--text-main);
}

.btn-outline:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

/* Cartes (Services, Projets, Support) */
.card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: var(--shadow-glow);
}

/* Formulaires & Champs de Saisie */
input, textarea, select {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    font-family: inherit;
    transition: border-color var(--transition-fast);
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--border-focus);
}

/* 5. UTILITAIRES
   ========================================================================== */
.text-center { text-align: center; }
.text-gradient {
    background: linear-gradient(135deg, var(--text-main) 30%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.mt-xl { margin-top: var(--spacing-xl); }
.mb-lg { margin-bottom: var(--spacing-lg); }

/* ==========================================================================
   6. MODULE DASHBOARD & INTERFACE (SCHÉMA 3 COLONNES)
   ========================================================================== */

/* Structure Générale du Tableau de Bord */
.app-header {
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
}

.brand-icon {
    color: var(--accent-color);
}

.badge {
    font-size: 0.75rem;
    padding: 0.2rem 0.6rem;
    border-radius: 50px;
    font-weight: 600;
}

.badge-sandbox {
    background: rgba(255, 193, 7, 0.15);
    color: #ffc107;
    border: 1px solid rgba(255, 193, 7, 0.3);
}

.badge-live {
    background: rgba(40, 167, 69, 0.15);
    color: #28a745;
    border: 1px solid rgba(40, 167, 69, 0.3);
}

/* Grille 3 Colonnes selon Croquis */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1.1fr;
    gap: 1.25rem;
    padding: 1.25rem;
    height: calc(100vh - 75px);
    box-sizing: border-box;
}

.grid-col {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    min-height: 0; /* Permet le défilement interne */
}

/* Ajustement spécifique des cartes de la Grille */
.card-action {
    flex: 0 0 auto;
    padding: 0.75rem;
}

.btn-block {
    width: 100%;
    padding: 0.9rem;
    font-size: 1rem;
}

.card-main {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    min-height: 0;
    padding: 1rem;
}

.card-main .card-body {
    flex: 1;
    overflow-y: auto;
    margin-top: 0.5rem;
}

.card-sub {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    padding: 1rem;
}

.card-sub .card-body {
    flex: 1;
    overflow-y: auto;
    margin-top: 0.25rem;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
    margin-bottom: 0.5rem;
}

.card-header h3 {
    font-size: 1.05rem;
    margin-bottom: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Éléments de Liste & Interactivité */
.item-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.item-node {
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.item-node:hover {
    border-color: var(--primary-color);
    background-color: var(--bg-surface-elevated);
}

.item-node.active {
    border-color: var(--accent-color);
    background-color: var(--bg-surface-elevated);
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.15);
}

.btn-icon {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.9rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    transition: color var(--transition-fast);
}

.btn-icon:hover {
    color: var(--text-main);
}

.text-danger { color: #ef4444 !important; }
.text-danger:hover { color: #dc2626 !important; }

.empty-state {
    color: var(--text-muted);
    font-style: italic;
    font-size: 0.9rem;
    padding: 1rem 0;
    text-align: center;
}

/* Détails */
.text-details .detail-group {
    padding: 0.35rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.9rem;
}

/* Modales & Overlays */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast);
    z-index: 1000;
}

.modal-overlay.open {
    opacity: 1;
    pointer-events: all;
}

.modal-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    width: 90%;
    max-width: 500px;
    padding: 1.5rem;
    box-shadow: var(--shadow-soft);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1.25rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.35rem;
}

/* Toasts / Notifications */
.toast-container {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    z-index: 2000;
}

.toast {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-soft);
    font-size: 0.9rem;
}

.toast-success { border-left: 4px solid #10b981; }
.toast-error { border-left: 4px solid #ef4444; }
.toast-info { border-left: 4px solid var(--accent-color); }