/* ============================================
   VARIABLES ET RESET
   ============================================ */
:root {
    --bg-space: #000000;
    --text-primary: #ffffff;
    --text-secondary: #b4b4b4;
    --accent-blue: #3b82f6;
    --accent-green: #10b981;
    --accent-red: #ef4444;
    --card-bg: rgba(20, 20, 30, 0.8);
    --border-color: rgba(255, 255, 255, 0.1);
    --border-radius: 8px;
    --transition: all 0.2s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-space);
    background-image:
        radial-gradient(circle at 20% 50%, rgba(120, 119, 198, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(74, 47, 189, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    opacity: 0;
    animation: page-fade-in 0.8s ease-out forwards;
}

@keyframes page-fade-in {
    to {
        opacity: 1;
    }
}

/* ============================================
   ÉTOILES
   ============================================ */
.stars {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.star {
    position: absolute;
    width: 2px;
    height: 2px;
    background: #ffffff;
    border-radius: 50%;
    opacity: 0;
    animation: twinkle 3s ease-in-out infinite, float 20s linear infinite;
}

@keyframes twinkle {
    0%, 100% {
        opacity: 0;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.2);
    }
}

@keyframes float {
    0% {
        transform: translate(0, 0);
    }
    25% {
        transform: translate(10px, -10px);
    }
    50% {
        transform: translate(-5px, -20px);
    }
    75% {
        transform: translate(-15px, -10px);
    }
    100% {
        transform: translate(0, 0);
    }
}

/* ============================================
   CONTAINER PRINCIPAL
   ============================================ */
.admin-container {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    padding: 2rem 1rem;
}

.admin-card {
    max-width: 1200px;
    margin: 0 auto;
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 2rem;
}

/* ============================================
   HEADER
   ============================================ */
.admin-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.admin-header h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #ffffff, var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.admin-header h1 i {
    background: linear-gradient(135deg, #ffffff, var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ============================================
   STATS SUMMARY
   ============================================ */
.stats-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.stat-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-2px);
}

.stat-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent-blue);
    border-radius: 50%;
    font-size: 1.5rem;
}

.stat-info {
    flex: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* ============================================
   TABLE
   ============================================ */
.stats-table {
    margin-bottom: 2rem;
}

.stats-table h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.table-container {
    overflow-x: auto;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

table {
    width: 100%;
    border-collapse: collapse;
}

thead {
    background: rgba(255, 255, 255, 0.05);
}

th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

tbody tr:hover {
    background: rgba(255, 255, 255, 0.05);
}

tbody tr:last-child {
    border-bottom: none;
}

td {
    padding: 1rem;
    font-size: 0.875rem;
}

.link-name {
    font-weight: 600;
    color: var(--text-primary);
}

.click-count {
    font-weight: 700;
    color: var(--accent-blue);
}

.percentage {
    color: var(--text-secondary);
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-green));
    border-radius: 4px;
    transition: width 0.5s ease;
}

/* ============================================
   ACTIONS
   ============================================ */
.admin-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background: #2563eb;
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.btn-danger {
    background: var(--accent-red);
    color: #ffffff;
}

.btn-danger:hover {
    background: #dc2626;
    transform: translateY(-2px);
}

/* ============================================
   EMPTY STATE
   ============================================ */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 640px) {
    .admin-card {
        padding: 1.5rem;
    }

    .admin-header h1 {
        font-size: 1.5rem;
    }

    .stat-value {
        font-size: 1.5rem;
    }

    .admin-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    th, td {
        padding: 0.75rem 0.5rem;
        font-size: 0.8125rem;
    }
}

/* ============================================
   MODAL D'AUTHENTIFICATION
   ============================================ */
.auth-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    animation: fade-in 0.3s ease;
}

.auth-modal {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    max-width: 400px;
    width: 90%;
    animation: slide-up 0.4s ease;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header i {
    font-size: 3rem;
    color: var(--accent-blue);
    margin-bottom: 1rem;
}

.auth-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.auth-header p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

#loginForm {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

#passwordInput {
    width: 100%;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

#passwordInput:focus {
    outline: none;
    border-color: var(--accent-blue);
    background: rgba(255, 255, 255, 0.08);
}

.error-message {
    color: var(--accent-red);
    font-size: 0.875rem;
    text-align: center;
    min-height: 1.25rem;
    margin: 0;
}

@keyframes fade-in {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slide-up {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-10px);
    }
    75% {
        transform: translateX(10px);
    }
}