/* ──────────────────────────────────────────────────────────────────
   QRCode by Creative Network — Design System
   Référence : design.md
   ────────────────────────────────────────────────────────────────── */

:root {
    /* Primaires */
    --color-primary: #059669;
    --color-primary-dark: #047857;
    --color-primary-deepest: #065F46;
    --color-teal: #0D9488;
    --color-teal-dark: #0F766E;
    --color-sky: #0EA5E9;

    /* Accents */
    --color-violet: #8B5CF6;
    --color-violet-bg: #EDE9FE;
    --color-violet-text: #7C3AED;
    --color-amber: #F59E0B;
    --color-amber-bg: #FEF3C7;
    --color-amber-text: #D97706;
    --color-rose: #EC4899;
    --color-rose-bg: #FCE7F3;
    --color-rose-text: #DB2777;
    --color-sky-bg: #E0F2FE;
    --color-sky-text: #0284C7;

    /* Statuts */
    --color-success-bg: #ECFDF5;
    --color-success-border: #A7F3D0;
    --color-success-text: #059669;
    --color-warning-bg: #FEF3C7;
    --color-warning-border: #FDE68A;
    --color-warning-text: #D97706;
    --color-error-bg: #FEE2E2;
    --color-error-border: #FECACA;
    --color-error-text: #DC2626;
    --color-info-bg: #E0F2FE;
    --color-info-border: #BAE6FD;
    --color-info-text: #0284C7;

    /* Fonds */
    --color-bg: #F8FAFC;
    --color-bg-mint: #ECFDF5;
    --color-bg-teal: #F0FDFA;
    --color-bg-sky: #F0F9FF;
    --color-card: #FFFFFF;
    --color-border: #E2E8F0;
    --color-border-soft: #F1F5F9;

    /* Texte */
    --color-title: #0F172A;
    --color-body: #1E293B;
    --color-secondary: #64748B;
    --color-muted: #94A3B8;
    --color-label: #0F766E;

    /* Dégradés */
    --gradient-signature: linear-gradient(135deg, #059669, #0D9488, #0EA5E9);
    --gradient-primary: linear-gradient(135deg, #059669, #0D9488);
    --gradient-sidebar: linear-gradient(180deg, #ECFDF5 0%, #F0FDFA 50%, #F8FAFC 100%);
    --gradient-metric: linear-gradient(135deg, #ECFDF5, #D1FAE5);
    --gradient-accent: linear-gradient(135deg, #F59E0B, #F97316);
    --gradient-danger: linear-gradient(135deg, #EF4444, #DC2626);

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.08);
    --shadow-focus: 0 0 0 3px rgba(5, 150, 105, 0.1);

    /* Layout */
    --sidebar-width: 260px;
    --header-height: 64px;
    --radius-sm: 8px;
    --radius-md: 10px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-pill: 9999px;
}

/* ─── RESET ────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    font-size: 14px;
    font-weight: 400;
    line-height: 1.5;
    color: var(--color-body);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
h1, h2, h3, h4, h5, h6 { margin: 0 0 12px; color: var(--color-title); font-weight: 600; }
h1 { font-size: 24px; }
h2 { font-size: 20px; }
h3 { font-size: 16px; }
p { margin: 0 0 12px; }
a { color: var(--color-primary); text-decoration: none; transition: color .15s; }
a:hover { color: var(--color-primary-dark); }
small, .small { font-size: 12px; color: var(--color-secondary); }

/* ─── LAYOUT ───────────────────────────────────────────────────── */
.app-shell {
    display: flex;
    min-height: 100vh;
}
.app-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-width: 0;
}
.app-content {
    padding: 24px;
    flex: 1;
}

/* ─── SIDEBAR ──────────────────────────────────────────────────── */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--gradient-sidebar);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    z-index: 100;
    overflow-y: auto;
}
.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 24px;
    border-bottom: 1px solid rgba(167, 243, 208, 0.4);
}
.sidebar-brand-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: var(--gradient-signature);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 16px;
    box-shadow: 0 4px 12px rgba(5, 150, 105, 0.25);
}
.sidebar-brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}
.sidebar-brand-title {
    font-weight: 600;
    color: var(--color-title);
    font-size: 15px;
}
.sidebar-brand-subtitle {
    font-size: 11px;
    color: var(--color-secondary);
}
.sidebar-section {
    padding: 20px 16px 8px;
}
.sidebar-section-title {
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-label);
    padding: 0 8px 8px;
}
.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 0 12px;
}
.sidebar-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 10px;
    color: var(--color-secondary);
    font-size: 14px;
    font-weight: 500;
    border: 1px solid transparent;
    transition: all .15s;
}
.sidebar-link:hover {
    background: rgba(255, 255, 255, 0.6);
    color: var(--color-primary);
}
.sidebar-link.active {
    background: #FFFFFF;
    border-color: var(--color-success-border);
    color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}
.sidebar-link svg { flex-shrink: 0; }
.sidebar-footer {
    margin-top: auto;
    padding: 16px;
    border-top: 1px solid rgba(167, 243, 208, 0.4);
}
.sidebar-user {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    background: #FFFFFF;
    border: 1px solid var(--color-border);
    border-radius: 10px;
}
.sidebar-user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 600;
    flex-shrink: 0;
}
.sidebar-user-info {
    flex: 1;
    min-width: 0;
}
.sidebar-user-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--color-title);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.sidebar-user-role {
    font-size: 11px;
    color: var(--color-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* ─── HEADER ───────────────────────────────────────────────────── */
.app-header {
    height: var(--header-height);
    background: #FFFFFF;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    padding: 0 24px;
    gap: 16px;
    position: sticky;
    top: 0;
    z-index: 50;
}
.app-header-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-title);
}
.app-header-actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 12px;
}
.header-mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-body);
    cursor: pointer;
    padding: 8px;
}

/* ─── BUTTONS ──────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 22px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    border: 1.5px solid transparent;
    transition: all .15s;
    text-decoration: none;
    line-height: 1;
}
.btn:focus-visible { outline: none; box-shadow: var(--shadow-focus); }
.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 12px rgba(5, 150, 105, 0.2);
}
.btn-primary:hover { color: #fff; filter: brightness(0.92); }
.btn-secondary {
    background: #FFFFFF;
    border-color: var(--color-primary);
    color: var(--color-primary);
}
.btn-secondary:hover { background: var(--color-bg-mint); }
.btn-accent {
    background: var(--gradient-accent);
    color: #fff;
}
.btn-accent:hover { color: #fff; filter: brightness(0.92); }
.btn-danger {
    background: var(--gradient-danger);
    color: #fff;
}
.btn-danger:hover { color: #fff; filter: brightness(0.92); }
.btn-ghost {
    background: transparent;
    color: var(--color-secondary);
}
.btn-ghost:hover { background: var(--color-bg); color: var(--color-body); }
.btn:disabled, .btn[disabled] {
    background: #F1F5F9;
    color: var(--color-muted);
    cursor: not-allowed;
    border-color: transparent;
    box-shadow: none;
}
.btn-sm { padding: 6px 14px; font-size: 13px; border-radius: 8px; }
.btn-icon { padding: 8px; }
.btn-block { width: 100%; }

/* ─── CARDS ────────────────────────────────────────────────────── */
.card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 20px 24px;
    box-shadow: var(--shadow-sm);
}
.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin: -20px -24px 16px;
    padding: 16px 24px;
    border-bottom: 1px solid var(--color-border-soft);
}
.card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-title);
    margin: 0;
}
.card-subtitle {
    font-size: 12px;
    color: var(--color-secondary);
    margin: 2px 0 0;
}

/* ─── METRIC CARDS ─────────────────────────────────────────────── */
.metric-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.metric-card {
    background: var(--gradient-metric);
    border: 1px solid var(--color-success-border);
    border-radius: 12px;
    padding: 20px 24px;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}
.metric-card.teal {
    background: linear-gradient(135deg, #F0FDFA, #CCFBF1);
    border-color: #99F6E4;
}
.metric-card.sky {
    background: linear-gradient(135deg, #F0F9FF, #BAE6FD);
    border-color: #7DD3FC;
}
.metric-card.violet {
    background: linear-gradient(135deg, #F5F3FF, #DDD6FE);
    border-color: #C4B5FD;
}
.metric-card.amber {
    background: linear-gradient(135deg, #FFFBEB, #FDE68A);
    border-color: #FCD34D;
}
.metric-label {
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-label);
}
.metric-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--color-title);
    margin: 6px 0 4px;
    line-height: 1.1;
}
.metric-trend {
    font-size: 12px;
    color: var(--color-secondary);
    display: flex;
    align-items: center;
    gap: 4px;
}
.metric-icon {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
}

/* ─── FORMS ────────────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-label {
    display: block;
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-label);
    margin-bottom: 6px;
}
.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--color-border);
    border-radius: 10px;
    background: var(--color-bg);
    font-family: inherit;
    font-size: 14px;
    color: var(--color-body);
    transition: all .15s;
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    background: #FFFFFF;
    box-shadow: var(--shadow-focus);
}
.form-textarea { resize: vertical; min-height: 90px; }
.form-help { font-size: 12px; color: var(--color-secondary); margin-top: 4px; }
.form-error {
    font-size: 12px;
    color: var(--color-error-text);
    margin-top: 4px;
    display: flex;
    align-items: center;
    gap: 4px;
}
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}

/* ─── TABLES ───────────────────────────────────────────────────── */
.table-wrapper {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}
.table {
    width: 100%;
    border-collapse: collapse;
}
.table th {
    background: var(--color-bg-teal);
    color: var(--color-label);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-align: left;
    padding: 14px 16px;
    border-bottom: 1px solid var(--color-border);
}
.table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--color-border-soft);
    color: var(--color-body);
    font-size: 14px;
}
.table tbody tr:hover { background: var(--color-bg); }
.table tbody tr:last-child td { border-bottom: none; }

/* ─── BADGES ───────────────────────────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 12px;
    border-radius: 9999px;
    font-size: 11px;
    font-weight: 500;
    line-height: 1.6;
}
.badge-success { background: var(--color-success-bg); color: var(--color-success-text); }
.badge-warning { background: var(--color-warning-bg); color: var(--color-warning-text); }
.badge-error { background: var(--color-error-bg); color: var(--color-error-text); }
.badge-info { background: var(--color-info-bg); color: var(--color-info-text); }
.badge-violet { background: var(--color-violet-bg); color: var(--color-violet-text); }
.badge-amber { background: var(--color-amber-bg); color: var(--color-amber-text); }
.badge-rose { background: var(--color-rose-bg); color: var(--color-rose-text); }
.badge-neutral { background: #F1F5F9; color: var(--color-secondary); }

/* ─── ALERTS / FLASH ───────────────────────────────────────────── */
.alert {
    padding: 14px 18px;
    border-radius: 10px;
    border-left: 3px solid;
    margin-bottom: 16px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
}
.alert-success { background: var(--color-success-bg); border-color: var(--color-success-text); color: var(--color-success-text); }
.alert-warning { background: var(--color-warning-bg); border-color: var(--color-warning-text); color: var(--color-warning-text); }
.alert-error   { background: var(--color-error-bg); border-color: var(--color-error-text); color: var(--color-error-text); }
.alert-info    { background: var(--color-info-bg); border-color: var(--color-info-text); color: var(--color-info-text); }

/* ─── PAGE HEADER ──────────────────────────────────────────────── */
.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}
.page-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--color-title);
    margin: 0;
}
.page-subtitle {
    font-size: 14px;
    color: var(--color-secondary);
    margin: 4px 0 0;
}
.page-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* ─── HERO SECTION (utilise le dégradé signature) ──────────────── */
.hero {
    background: var(--gradient-signature);
    color: #fff;
    border-radius: 16px;
    padding: 32px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}
.hero h1, .hero h2 { color: #fff; }
.hero p { color: rgba(255, 255, 255, 0.9); margin: 0; }

/* ─── EMPTY STATE ──────────────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--color-secondary);
}
.empty-state-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    border-radius: 16px;
    background: var(--color-bg-mint);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
}
.empty-state-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-title);
    margin-bottom: 4px;
}

/* ─── LOGIN PAGE ───────────────────────────────────────────────── */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background:
        radial-gradient(circle at 0% 0%, #ECFDF5 0%, transparent 50%),
        radial-gradient(circle at 100% 100%, #F0F9FF 0%, transparent 50%),
        var(--color-bg);
}
.auth-card {
    width: 100%;
    max-width: 440px;
    background: #FFFFFF;
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
}
.auth-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    margin-bottom: 28px;
}
.auth-brand-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    background: var(--gradient-signature);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 14px;
    box-shadow: 0 8px 24px rgba(5, 150, 105, 0.3);
}
.auth-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--color-title);
    margin-bottom: 4px;
}
.auth-subtitle {
    font-size: 13px;
    color: var(--color-secondary);
    text-align: center;
}
.auth-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 12px;
    color: var(--color-muted);
}

/* ─── UTILS ────────────────────────────────────────────────────── */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--color-muted); }
.text-secondary { color: var(--color-secondary); }
.text-success { color: var(--color-success-text); }
.text-error { color: var(--color-error-text); }
.flex { display: flex; }
.flex-1 { flex: 1; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.w-full { width: 100%; }
.hidden { display: none; }

/* ─── RESPONSIVE ───────────────────────────────────────────────── */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform .25s;
    }
    .sidebar.open { transform: translateX(0); }
    .app-main { margin-left: 0; }
    .header-mobile-toggle { display: inline-flex; }
}
@media (max-width: 640px) {
    .app-content { padding: 16px; }
    .auth-card { padding: 28px 24px; }
    .page-header { flex-direction: column; align-items: stretch; }
    .table-wrapper { overflow-x: auto; }
    .table { min-width: 600px; }
}