/* ==========================================================================
   1. FONDATION & VARIABLES
   ========================================================================== */
:root {
    --c-bg: #000000;
    --c-surface: rgba(18, 18, 18, 0.5);
    --c-border: rgba(255, 255, 255, 0.1);
    --c-text-primary: #FFFFFF;
    --c-text-secondary: #a0a0a0;
    --c-accent-primary: #AC6EE2;
    --c-accent-secondary: #F89FCD;

    /* Couleurs des graphiques */
    --c-cpu: rgb(255, 0, 166);
    --c-ram: rgb(200, 55, 255);
    --c-download: rgb(55, 159, 255);
    --c-upload: rgb(255, 99, 132);

    /* Typographie */
    --font-heading: 'Unbounded', sans-serif;
    --font-body: 'Nunito Sans', sans-serif;

    /* UI & Animations */
    --border-radius: 1.25rem;
    --transition-speed: 0.4s;
    --transition-ease: cubic-bezier(0.25, 1, 0.5, 1);
}

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

body {
    background-color: var(--c-bg);
    color: var(--c-text-primary);
    font-family: var(--font-body);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    position: relative;
    z-index: 1;
    /* CORRECTION : Méthode de centrage vertical */
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

/* L'animation de fond "Aurora" */
body::before, body::after {
    content: ''; position: fixed; z-index: -1; filter: blur(10rem); will-change: opacity, transform;
    width: 45vw; height: 45vw;
}
body::before { /* Aura 1 (Violet) */
    top: 55%; left: 55%; background: radial-gradient(circle, var(--c-accent-primary), transparent 60%);
    animation: aurora-1 25s infinite ease alternate;
}
body::after { /* Aura 2 (Rose) */
    top: 45%; left: 45%; background: radial-gradient(circle, var(--c-accent-secondary), transparent 50%);
    animation: aurora-2 25s infinite ease alternate;
}
@keyframes aurora-1 { 0% { transform: translate(-50%, -50%) rotate(0deg); opacity: 0.4; } 100% { transform: translate(-70%, -30%) rotate(180deg); opacity: 0.2; } }
@keyframes aurora-2 { 0% { transform: translate(-50%, -50%) rotate(0deg); opacity: 0.2; } 100% { transform: translate(-30%, -70%) rotate(-180deg); opacity: 0.4; } }

/* ==========================================================================
   3. LAYOUT & STRUCTURE PRINCIPALE
   ========================================================================== */
.container {
    width: 100%;
    max-width: 1600px;
    margin-top: 2rem;
    display: flex;
    gap: 2rem;
    flex-direction: column;
}

main {
    flex-grow: 1;
    width: 100%;
}

footer {
    padding-top: 3rem; /* Espace réduit */
    color: var(--c-text-secondary);
    opacity: 0.6;
    font-size: 1rem;
    text-align: center;
    width: 100%;
}

/* ==========================================================================
   4. TYPOGRAPHIE
   ========================================================================== */
header {
    text-align: center;
    margin-bottom: 3rem; /* Espace réduit */
}
header h1 {
    font-family: var(--font-heading); font-size: clamp(3rem, 10vw, 5rem);
    background: #fff;
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
    /* margin-bottom: 1rem; */
}
header .subtitle {
    font-weight: 400; font-size: 1rem; color: var(--c-text-secondary);
}
.service-category h2 {
    font-family: var(--font-heading); font-size: 1.8rem; margin-bottom: 1.5rem;
    padding-left: 1rem; border-left: 3px solid var(--c-accent-primary);
}
.service-category.media h2 { border-left-color: var(--c-accent-secondary); }

/* ==========================================================================
   5. COMPOSANTS
   ========================================================================== */

/* --- A. Base unifiée pour les cartes et boutons de service --- */
.stat-card, .service-button {
    background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--border-radius);
    padding: 1.5rem; backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    position: relative; overflow: hidden;
    transition: transform var(--transition-speed) var(--transition-ease), box-shadow var(--transition-speed) var(--transition-ease);
    display: flex; flex-direction: column; text-decoration: none; color: var(--c-text-primary);
}
.stat-card:hover, .service-button:hover { transform: translateY(-2px); box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2); }
.stat-card::before, .service-button::before {
    content: ''; position: absolute; inset: 0; border-radius: var(--border-radius); padding: 1px;
    background: linear-gradient(135deg, var(--c-accent-primary), var(--c-accent-secondary));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0;
    transition: opacity var(--transition-speed) var(--transition-ease);
}
.stat-card:hover::before, .service-button:hover::before { opacity: 1; }

/* --- B. Spécificités des cartes du Dashboard --- */
.stat-card { min-height: 350px; }
.card-title { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 1rem; }
.stat-card h3 { font-family: var(--font-heading); font-size: 1.2rem; }
.chart-container { position: relative; flex-grow: 1; }
.card-value-text { font-weight: 600; font-size: 1.1rem; }
#cpu-value-text { color: var(--c-cpu); }
#ram-value-text { color: var(--c-ram); }
#storage-total-text { color: var(--c-accent-secondary); }
#network-down { color: var(--c-download); }
#network-up { color: var(--c-upload); }
.card-value-network { text-align: right; line-height: 1.2; }
.card-value-network .network-rates { display: flex; gap: 0.75rem; font-size: 1.1rem; font-weight: 600; }
.card-value-network .network-unit { font-size: 0.9rem; color: var(--c-accent-primary); font-weight: 400; }
.storage-list-container { margin-top: 1rem; display: flex; flex-direction: column; gap: 1rem; }
.disk-info-header { display: flex; justify-content: space-between; align-items: baseline; }
.progress-bar-container { width: 100%; height: 6px; background-color: rgba(0, 0, 0, 0.3); border-radius: 3px; overflow: hidden; margin-top: 0.3rem; }
.progress-bar { height: 100%; background: linear-gradient(90deg, var(--c-accent-primary), var(--c-accent-secondary)); border-radius: 3px; }

/* --- C. Spécificités des boutons de Service --- */
.service-category { width: 100%; margin-bottom: 3rem; text-align: left; }
.service-button h3 { font-family: var(--font-heading); font-size: 1.2rem; display: flex; align-items: center; gap: 0.75rem; color: var(--c-accent-primary); }
.service-button p { font-size: 0.9rem; color: var(--c-text-secondary); margin-top: 0.5rem; }
.card-icon { color: var(--c-accent-primary); transition: color 0.3s; }
.service-button:hover .card-icon { color: var(--c-accent-secondary); }

/* --- D. Boutons de navigation principaux --- */
.navigation { margin-top: 4rem; text-align: center; }
.main-button {
    display: inline-block; padding: 0.8rem 2rem; font-family: var(--font-heading); font-size: 1.1rem;
    color: var(--c-text-primary); background: rgba(255, 255, 255, 0.05); border: 1px solid var(--c-border);
    border-radius: 50px; transition: all var(--transition-speed) var(--transition-ease); cursor: pointer; text-decoration: none;
}
.main-button:hover { background: var(--c-accent-primary); border-color: var(--c-accent-primary); color: #fff; box-shadow: 0 0 25px rgba(172, 110, 226, 0.25); transform: translateY(-2px); }
.main-button.back-button:hover { color: var(--c-accent-primary); background: transparent; border-color: var(--c-accent-primary); box-shadow: 0 0 15px rgba(172, 110, 226, 0.2); transform: translateY(-2px); }

/* ==========================================================================
   6. GRILLES
   ========================================================================== */
.status-grid, .button-grid { display: grid; gap: 1rem; } /* Espace réduit */
.status-grid { margin-bottom: 3rem; } /* Espace réduit */
.status-grid, .admin-grid, .media-grid { grid-template-columns: 1fr; }
.admin-grid { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }

/* ==========================================================================
   7. RESPONSIVE OVERRIDES
   ========================================================================== */
@media (min-width: 768px) {
    .status-grid { grid-template-columns: repeat(2, 1fr); }
    .media-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1200px) {
    .status-grid { grid-template-columns: repeat(4, 1fr); }
}