/* =====================================================
   XML WebFrance - Design System
   A modern, distinctive dark theme with vibrant accents
   ===================================================== */

/* CSS Variables */
:root {
    /* Primary palette - Sky blue */
    --primary-50: #f0f9ff;
    --primary-100: #e0f2fe;
    --primary-200: #bae6fd;
    --primary-300: #7dd3fc;
    --primary-400: #38bdf8;
    --primary-500: #0ea5e9;
    --primary-600: #0284c7;
    --primary-700: #0369a1;
    --primary-800: #075985;
    --primary-900: #0c4a6e;

    /* Accent palette - Violet */
    --accent-400: #a78bfa;
    --accent-500: #8b5cf6;
    --accent-600: #7c3aed;

    /* Neon colors */
    --neon-cyan: #22d3ee;
    --neon-purple: #a855f7;
    --neon-pink: #ec4899;

    /* Dark palette */
    --dark-950: #030712;
    --dark-900: #0a0f1a;
    --dark-850: #0d1321;
    --dark-800: #111827;
    --dark-700: #1f2937;
    --dark-600: #374151;
    --dark-500: #6b7280;
    --dark-400: #9ca3af;
    --dark-300: #d1d5db;
    --dark-200: #e5e7eb;
    --dark-100: #f3f4f6;

    /* Semantic colors */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-500), var(--accent-500));
    --gradient-neon: linear-gradient(135deg, var(--primary-500), var(--accent-500), var(--neon-pink));

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-glow-primary: 0 0 40px rgba(14, 165, 233, 0.3);
    --shadow-glow-accent: 0 0 40px rgba(139, 92, 246, 0.3);

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

/* Base Styles */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background-color: var(--dark-900);
    color: var(--dark-200);
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--dark-900);
}

::-webkit-scrollbar-thumb {
    background: var(--dark-600);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--dark-500);
}

/* Selection */
::selection {
    background: var(--primary-500);
    color: white;
}

/* Focus */
:focus-visible {
    outline: 2px solid var(--primary-500);
    outline-offset: 2px;
}

/* Links */
a {
    color: var(--primary-400);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-300);
}

/* Code */
code {
    font-family: var(--font-mono);
    background-color: var(--dark-800);
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
    font-size: 0.875em;
}

/* =====================================================
   Buttons
   ===================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-xl);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    border: none;
}

.btn-primary:hover:not(:disabled) {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow-primary);
}

.btn-secondary {
    background: var(--dark-700);
    color: var(--dark-200);
    border-color: var(--dark-600);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--dark-600);
    border-color: var(--dark-500);
    color: white;
}

.btn-ghost {
    background: transparent;
    color: var(--dark-400);
}

.btn-ghost:hover:not(:disabled) {
    background: var(--dark-800);
    color: white;
}

.btn-outline {
    background: transparent;
    color: var(--primary-400);
    border-color: var(--primary-500);
}

.btn-outline:hover:not(:disabled) {
    background: var(--primary-500);
    color: white;
}

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

.btn-success:hover:not(:disabled) {
    background: #059669;
}

.btn-danger {
    background: var(--error);
    color: white;
}

.btn-danger:hover:not(:disabled) {
    background: #dc2626;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
    border-radius: var(--radius-lg);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-full {
    width: 100%;
}

/* =====================================================
   Form Elements
   ===================================================== */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--dark-300);
    margin-bottom: 0.5rem;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.9375rem;
    color: white;
    background: var(--dark-800);
    border: 1px solid var(--dark-600);
    border-radius: var(--radius-xl);
    transition: all var(--transition-fast);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--dark-500);
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
    border-color: var(--dark-500);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

.form-input.error {
    border-color: var(--error);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-hint {
    font-size: 0.8125rem;
    color: var(--dark-500);
    margin-top: 0.375rem;
}

.form-error {
    font-size: 0.8125rem;
    color: var(--error);
    margin-top: 0.375rem;
}

/* =====================================================
   Cards
   ===================================================== */
.card {
    background: var(--dark-800);
    border: 1px solid var(--dark-700);
    border-radius: var(--radius-2xl);
    overflow: hidden;
}

.card-glass {
    background: rgba(17, 24, 39, 0.5);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(31, 41, 55, 0.5);
}

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--dark-700);
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--dark-700);
    background: rgba(0, 0, 0, 0.2);
}

.card-hover {
    transition: all var(--transition-base);
}

.card-hover:hover {
    border-color: var(--primary-500);
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* =====================================================
   Alerts
   ===================================================== */
.alert {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-xl);
    font-size: 0.9375rem;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #34d399;
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #f87171;
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: #fbbf24;
}

.alert-info {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: #60a5fa;
}

/* =====================================================
   Badges
   ===================================================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
}

.badge-primary {
    background: linear-gradient(135deg, var(--primary-500), var(--accent-500));
    color: white;
}

.badge-secondary {
    background: var(--dark-700);
    color: var(--dark-300);
}

.badge-success {
    background: rgba(16, 185, 129, 0.2);
    color: #34d399;
}

.badge-danger {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
}

.badge-warning {
    background: rgba(245, 158, 11, 0.2);
    color: #fbbf24;
}

.badge-gray {
    background: rgba(107, 114, 128, 0.2);
    color: var(--dark-400);
}

/* =====================================================
   Progress Bar
   ===================================================== */
.progress {
    height: 0.5rem;
    background: var(--dark-700);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.progress-bar.success {
    background: var(--success);
}

/* =====================================================
   Tables
   ===================================================== */
.table-container {
    overflow-x: auto;
    border-radius: var(--radius-xl);
    border: 1px solid var(--dark-700);
}

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

.table th,
.table td {
    padding: 0.875rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--dark-700);
}

.table th {
    background: var(--dark-800);
    font-weight: 600;
    color: var(--dark-400);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table tbody tr {
    transition: background var(--transition-fast);
}

.table tbody tr:hover {
    background: rgba(31, 41, 55, 0.5);
}

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

/* =====================================================
   Modal
   ===================================================== */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.modal {
    background: var(--dark-800);
    border-radius: var(--radius-2xl);
    border: 1px solid var(--dark-700);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalIn 0.2s ease-out;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--dark-700);
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--dark-700);
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
    background: var(--dark-850);
}

/* =====================================================
   Upload Zone
   ===================================================== */
.upload-zone {
    border: 2px dashed var(--dark-600);
    border-radius: var(--radius-2xl);
    padding: 3rem 2rem;
    text-align: center;
    transition: all var(--transition-base);
    cursor: pointer;
    background: var(--dark-800);
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--primary-500);
    background: rgba(14, 165, 233, 0.05);
}

.upload-zone.dragover {
    transform: scale(1.02);
}

.upload-zone-icon {
    width: 4rem;
    height: 4rem;
    margin: 0 auto 1rem;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

/* =====================================================
   Stats Cards
   ===================================================== */
.stat-card {
    background: var(--dark-800);
    border: 1px solid var(--dark-700);
    border-radius: var(--radius-2xl);
    padding: 1.5rem;
}

.stat-icon {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.stat-icon.primary {
    background: rgba(14, 165, 233, 0.2);
    color: var(--primary-400);
}

.stat-icon.success {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
}

.stat-icon.warning {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
}

.stat-icon.accent {
    background: rgba(139, 92, 246, 0.2);
    color: var(--accent-400);
}

.stat-value {
    font-size: 1.875rem;
    font-weight: 700;
    color: white;
    line-height: 1.2;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--dark-400);
    margin-top: 0.25rem;
}

/* =====================================================
   Loading & Skeleton
   ===================================================== */
.spinner {
    width: 1.5rem;
    height: 1.5rem;
    border: 2px solid var(--dark-600);
    border-top-color: var(--primary-500);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.spinner-sm {
    width: 1rem;
    height: 1rem;
}

.spinner-lg {
    width: 2.5rem;
    height: 2.5rem;
    border-width: 3px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.skeleton {
    background: linear-gradient(90deg,
        var(--dark-700) 25%,
        var(--dark-600) 50%,
        var(--dark-700) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* =====================================================
   Animations
   ===================================================== */
.fade-in {
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.slide-up {
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-slide-in {
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* =====================================================
   Utilities
   ===================================================== */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.glass {
    background: rgba(17, 24, 39, 0.7);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(31, 41, 55, 0.5);
}

.glow-primary {
    box-shadow: var(--shadow-glow-primary);
}

.glow-accent {
    box-shadow: var(--shadow-glow-accent);
}

.truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* =====================================================
   Responsive
   ===================================================== */
@media (max-width: 1024px) {
    .hide-lg { display: none !important; }
}

@media (max-width: 768px) {
    .hide-md { display: none !important; }
    .show-md { display: block !important; }

    .btn { padding: 0.625rem 1.25rem; }
    .btn-lg { padding: 0.875rem 1.5rem; }

    .modal {
        margin: 0.5rem;
        max-height: calc(100vh - 1rem);
    }
}

@media (max-width: 640px) {
    .hide-sm { display: none !important; }
    .show-sm { display: block !important; }

    .stat-value { font-size: 1.5rem; }
    .upload-zone { padding: 2rem 1rem; }
    .card-body { padding: 1rem; }
}

/* Print */
@media print {
    body {
        background: white;
        color: black;
    }
    .no-print { display: none !important; }
}

/* =====================================================
   Line Clamp Utilities
   ===================================================== */
.line-clamp-1 {
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.line-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.group:hover .group-hover\:line-clamp-none {
    display: block;
    -webkit-line-clamp: unset;
    overflow: visible;
}

.group:hover .group-hover\:whitespace-pre-wrap {
    white-space: pre-wrap;
}