/* ============================================
   CFE-CGC Design System
   "High-End Editorial Institutionalism"
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:wght,FILL@100..700,0..1&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;600;700;800&family=Inter:wght@400;500;600&display=swap');

/* === Reset & Base === */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Inter', system-ui, sans-serif;
    background-color: #f7f9ff;
    color: #161c22;
    line-height: 1.6;
    overflow-x: hidden;
}

::selection {
    background-color: #dce1ff;
    color: #00164f;
}

/* === Design Tokens (CSS Variables) === */
:root {
    /* Primary */
    --primary: #006b3f;
    --primary-container: #008751;
    --on-primary: #ffffff;
    --on-primary-container: #fdfff9;
    --primary-fixed: #8df8b7;
    --primary-fixed-dim: #70db9d;

    /* Secondary */
    --secondary: #3c58b3;
    --secondary-container: #849efe;
    --on-secondary: #ffffff;
    --on-secondary-container: #0b318c;
    --secondary-fixed: #dce1ff;
    --secondary-fixed-dim: #b6c4ff;

    /* Tertiary (Danger) */
    --tertiary: #be000c;
    --tertiary-container: #ea1118;
    --on-tertiary: #ffffff;

    /* Surface hierarchy */
    --surface: #f7f9ff;
    --surface-dim: #d5dae2;
    --surface-bright: #f7f9ff;
    --surface-container-lowest: #ffffff;
    --surface-container-low: #eff4fc;
    --surface-container: #e9eef6;
    --surface-container-high: #e3e9f0;
    --surface-container-highest: #dde3eb;
    --surface-variant: #dde3eb;

    /* On Surface */
    --on-surface: #161c22;
    --on-surface-variant: #3e4a41;
    --on-background: #161c22;
    --background: #f7f9ff;

    /* Outline */
    --outline: #6e7a70;
    --outline-variant: #bdcabe;

    /* Inverse */
    --inverse-surface: #2b3137;
    --inverse-on-surface: #ecf1f9;
    --inverse-primary: #70db9d;

    /* Error */
    --error: #ba1a1a;
    --error-container: #ffdad6;
    --on-error: #ffffff;

    /* Radius */
    --radius-sm: 0.125rem;
    --radius-md: 0.25rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
    --radius-3xl: 1.5rem;
    --radius-full: 9999px;
}

/* === Typography === */
.font-headline { font-family: 'Manrope', system-ui, sans-serif; }
.font-body { font-family: 'Inter', system-ui, sans-serif; }
.font-label { font-family: 'Inter', system-ui, sans-serif; }

/* === Material Symbols === */
.material-symbols-outlined {
    font-family: 'Material Symbols Outlined';
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
    display: inline-block;
    line-height: 1;
    text-transform: none;
    letter-spacing: normal;
    word-wrap: normal;
    white-space: nowrap;
    direction: ltr;
    vertical-align: middle;
    -webkit-font-feature-settings: 'liga';
    font-feature-settings: 'liga';
    -webkit-font-smoothing: antialiased;
}

/* === Elevation: Ghost Border & Ambient Shadow === */
.ghost-border {
    box-shadow: 0 0 0 1px rgba(189, 202, 190, 0.2);
}

.ambient-shadow {
    box-shadow: 0 10px 32px -4px rgba(22, 28, 34, 0.06);
}

.ambient-shadow-lg {
    box-shadow: 0 32px 64px -12px rgba(22, 28, 34, 0.06);
}

/* === Glass Navigation === */
.glass-nav {
    background: rgba(247, 249, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

/* === Gradient Buttons === */
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-container));
    color: var(--on-primary);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    box-shadow: 0 8px 24px rgba(0, 107, 63, 0.25);
    transform: translateY(-2px);
}

.btn-primary:active {
    transform: scale(0.98);
}

/* === Scrollbar === */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: var(--surface-container-low);
}
::-webkit-scrollbar-thumb {
    background: var(--outline-variant);
    border-radius: var(--radius-full);
}

/* === No scrollbar utility === */
.no-scrollbar::-webkit-scrollbar {
    display: none;
}
.no-scrollbar {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

/* === Mobile burger menu === */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(247, 249, 255, 0.98);
    backdrop-filter: blur(20px);
    z-index: 100;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
}

.mobile-menu.active {
    display: flex;
}

.mobile-menu a {
    font-family: 'Manrope', sans-serif;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--on-surface);
    text-decoration: none;
    transition: color 0.2s;
}

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

.mobile-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--on-surface);
}

/* === Cookie Banner === */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--inverse-surface);
    color: var(--inverse-on-surface);
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    z-index: 200;
    font-size: 0.875rem;
    transform: translateY(0);
    transition: transform 0.4s ease;
}

.cookie-banner.hidden {
    transform: translateY(100%);
}

.cookie-banner button {
    background: var(--primary);
    color: var(--on-primary);
    border: none;
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.2s;
}

.cookie-banner button:hover {
    background: var(--primary-container);
}

/* === Toast Notifications === */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-xl);
    font-weight: 500;
    font-size: 0.875rem;
    z-index: 300;
    transform: translateX(150%);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    max-width: 400px;
}

.toast.show {
    transform: translateX(0);
}

.toast.success {
    background: var(--primary);
    color: var(--on-primary);
}

.toast.error {
    background: var(--error);
    color: var(--on-error);
}

/* === Loading Skeleton === */
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.skeleton {
    background: linear-gradient(90deg, 
        var(--surface-container-high) 25%, 
        var(--surface-container) 50%, 
        var(--surface-container-high) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s ease-in-out infinite;
    border-radius: var(--radius-md);
}

/* === Page transition === */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* === Admin-specific styles === */
.admin-tabs {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--surface-container-high);
}

.admin-tab {
    padding: 0.75rem 1.5rem;
    font-family: 'Manrope', sans-serif;
    font-weight: 700;
    font-size: 0.875rem;
    color: var(--on-surface-variant);
    background: none;
    border: none;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all 0.2s;
}

.admin-tab:hover {
    color: var(--primary);
}

.admin-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.admin-panel {
    display: none;
}

.admin-panel.active {
    display: block;
}

/* === Modal === */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(22, 28, 34, 0.5);
    backdrop-filter: blur(4px);
    z-index: 150;
    align-items: center;
    justify-content: center;
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    background: var(--surface-container-lowest);
    border-radius: var(--radius-2xl);
    padding: 2rem;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

/* === Responsive utilities === */
@media (max-width: 768px) {
    .hide-mobile {
        display: none !important;
    }
    
    .show-mobile {
        display: flex !important;
    }
}

@media (min-width: 769px) {
    .show-mobile {
        display: none !important;
    }
}

/* === Table styles for admin === */
.admin-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.admin-table th {
    text-align: left;
    padding: 0.75rem 1rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--on-surface-variant);
    background: var(--surface-container-low);
    border-bottom: 1px solid rgba(189, 202, 190, 0.2);
}

.admin-table td {
    padding: 1rem;
    font-size: 0.875rem;
    color: var(--on-surface);
    border-bottom: 1px solid rgba(189, 202, 190, 0.1);
    vertical-align: middle;
}

.admin-table tr:hover td {
    background: var(--surface-container-low);
}

/* === Input focus consistent style === */
input:focus, select:focus, textarea:focus {
    outline: none;
}