:root {
    --color-bg: #f2f4f3;
    --color-surface: #ffffff;
    --color-text: #1a2027;
    --color-muted: #626d7a;
    --color-border: #e2e6ea;
    --color-primary: #2f6f4f;
    --color-primary-dark: #234f38;
    --color-primary-soft: #eaf3ee;
    /* Couleur de texte/lien dérivée de l'accent (par défaut = color-primary-dark,
       recalée en mode sombre ci-dessous) : séparée de --color-primary-dark pour
       ne pas changer le fond du bouton principal au survol dans les deux cas. */
    --color-accent-text: var(--color-primary-dark);
    --color-danger: #b3261e;
    --color-danger-soft: #fdecea;
    --color-warning-bg: #fff4e5;
    --color-warning-border: #f2c078;
    --radius: 10px;
    --radius-lg: 14px;
    --shadow-sm: 0 1px 2px rgba(20, 30, 25, 0.06), 0 1px 1px rgba(20, 30, 25, 0.04);
    --shadow-md: 0 4px 12px rgba(20, 30, 25, 0.08), 0 2px 4px rgba(20, 30, 25, 0.05);
    color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
    :root {
        --color-bg: #14171b;
        --color-surface: #1c2126;
        --color-text: #e6e9ec;
        --color-muted: #96a1ab;
        --color-border: #2c333a;
        --color-primary-soft: color-mix(in srgb, var(--color-primary) 20%, var(--color-surface));
        --color-accent-text: color-mix(in srgb, var(--color-primary) 65%, white 35%);
        --color-danger: #f17a73;
        --color-danger-soft: #3a1f1f;
        --color-warning-bg: #3a2f17;
        --color-warning-border: #a9752f;
        --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35), 0 1px 1px rgba(0, 0, 0, 0.25);
        --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4), 0 2px 4px rgba(0, 0, 0, 0.25);
    }
}

* { box-sizing: border-box; }

html {
    overflow-x: hidden;
}

body {
    margin: 0;
    overflow-x: hidden;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { line-height: 1.25; letter-spacing: -0.01em; }
h1 { font-size: 1.6rem; margin: 0 0 16px; }
h2 { font-size: 1.15rem; margin: 0 0 12px; }

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

:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.skip-link {
    position: absolute;
    left: 10px;
    top: -60px;
    z-index: 100;
    background: var(--color-surface);
    color: var(--color-text);
    padding: 10px 16px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    text-decoration: none;
    font-weight: 600;
    transition: top 0.15s ease;
}
.skip-link:focus {
    top: 10px;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 20px 16px 48px;
}

/* --- Header / nav --- */
.site-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 10;
}
.site-header__bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
}
.site-header__brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.15rem;
    text-decoration: none;
    color: var(--color-text);
}
.site-header__brand:hover { color: var(--color-text); }
.site-header__logo {
    height: 32px;
    width: auto;
    max-width: 140px;
    object-fit: contain;
    display: block;
}
.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    padding: 8px;
    cursor: pointer;
    border-radius: var(--radius);
}
.nav-toggle:hover { background: var(--color-bg); }
.nav-toggle span {
    width: 22px;
    height: 2px;
    background: var(--color-text);
    display: block;
    border-radius: 2px;
}
.site-nav {
    display: none;
    flex-direction: column;
    padding: 4px 16px 16px;
    gap: 4px;
}
.site-nav.is-open { display: flex; }
.site-nav a {
    text-decoration: none;
    color: var(--color-text);
    padding: 10px 12px;
    margin: 0 -12px;
    min-height: 44px;
    display: flex;
    align-items: center;
    border-radius: var(--radius);
    font-weight: 500;
    transition: background-color 0.15s ease;
}
.site-nav a:hover { background: var(--color-primary-soft); color: var(--color-accent-text); }
.site-nav__spacer { display: none; }
.site-nav__user { color: var(--color-muted); font-size: 0.9rem; padding: 4px 12px; }
.site-nav__logout { margin: 0; }

@media (min-width: 768px) {
    .nav-toggle { display: none; }
    .site-nav {
        display: flex;
        flex-direction: row;
        align-items: center;
        padding: 0 16px 12px;
        gap: 2px;
    }
    .site-nav a { margin: 0; }
    .site-nav__spacer { display: block; flex: 1; }
}

/* --- Buttons / forms --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 18px;
    margin: 0;
    border-radius: var(--radius);
    border: 1px solid transparent;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 600;
    line-height: 1.2;
    vertical-align: middle;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.15s ease, box-shadow 0.15s ease, transform 0.05s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--color-primary); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--color-primary-dark); color: #fff; }
.btn-secondary { background: var(--color-surface); border-color: var(--color-border); color: var(--color-text); }
.btn-secondary:hover { background: var(--color-bg); color: var(--color-text); border-color: var(--color-muted); }
.btn-link { background: none; border: none; color: var(--color-accent-text); padding: 0 8px; font-weight: 500; min-height: 36px; }
.btn-link:hover { color: var(--color-primary); }
.btn-danger { color: var(--color-danger); }
.btn-secondary.btn-danger { border-color: var(--color-danger); color: var(--color-danger); }
.btn-secondary.btn-danger:hover { background: var(--color-danger-soft); border-color: var(--color-danger); color: var(--color-danger); }
.btn-danger-solid { background: var(--color-danger); color: #fff; }
.btn-danger-solid:hover { background: #8f1e18; color: #fff; }
.btn-block { display: flex; width: 100%; }

form {
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-width: 480px;
}
form label { font-weight: 600; margin-top: 10px; font-size: 0.92rem; }
form input[type=text], form input[type=password], form input[type=number],
form input[type=file], form select, form textarea {
    min-height: 44px;
    padding: 8px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 1rem;
    background: var(--color-surface);
    color: var(--color-text);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
form input[type=text]:focus, form input[type=password]:focus, form input[type=number]:focus,
form select:focus, form textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-soft);
    outline: none;
}
form input[type=color] {
    width: 64px;
    height: 44px;
    padding: 2px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-surface);
    cursor: pointer;
}
form textarea { min-height: 80px; }
.checkbox-label { display: flex; align-items: center; gap: 8px; font-weight: normal; }
.radio-group { border: none; padding: 0; margin: 8px 0; }
.radio-group label { font-weight: normal; display: inline-flex; align-items: center; gap: 6px; margin-right: 16px; }
.field-hint { color: var(--color-muted); font-size: 0.85rem; margin: 4px 0 0; }

/* --- Cards --- */
.auth-card, .card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 22px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 20px;
}
.auth-card { max-width: 400px; margin: 48px auto; }
.auth-card h1 { text-align: center; }
.card-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 700px) {
    .card-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1000px) {
    .card-grid { grid-template-columns: repeat(3, 1fr); }
}
.card-grid .card { margin-bottom: 0; transition: box-shadow 0.15s ease, transform 0.1s ease; }
.card-grid .card:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }
.card__actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.inline-form { display: inline-flex; align-items: center; margin: 0; max-width: none; }
.card__list { padding-left: 20px; margin: 10px 0 0; }

.page-header {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 18px;
}
@media (min-width: 600px) {
    .page-header { flex-direction: row; align-items: center; justify-content: space-between; }
}

.breadcrumb { color: var(--color-muted); margin: 0 0 4px; font-size: 0.9rem; }

/* --- Stat grid --- */
.stat-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
    margin-bottom: 28px;
}
@media (min-width: 600px) {
    .stat-grid { grid-template-columns: repeat(3, 1fr); }
}
.stat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-top: 3px solid var(--color-primary);
    border-radius: var(--radius-lg);
    padding: 18px;
    text-align: center;
    box-shadow: var(--shadow-sm);
}
.stat-card--warning { border-top-color: var(--color-warning-border); }
.stat-card__value { display: block; font-size: 2.1rem; font-weight: 700; letter-spacing: -0.02em; }
.stat-card__label { color: var(--color-muted); font-size: 0.9rem; }

/* --- Tables --- */
.table-responsive {
    position: relative;
    margin-bottom: 24px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    background: var(--color-surface);
    overflow: hidden;
}
.table-scroll {
    overflow-x: auto;
}
.table-responsive.can-scroll-right::after,
.table-responsive.can-scroll-left::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 28px;
    pointer-events: none;
}
.table-responsive.can-scroll-right::after {
    right: 0;
    background: linear-gradient(to right, rgba(20, 30, 25, 0), rgba(20, 30, 25, 0.12));
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}
.table-responsive.can-scroll-left::before {
    left: 0;
    background: linear-gradient(to left, rgba(20, 30, 25, 0), rgba(20, 30, 25, 0.12));
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: 12px 16px; border-bottom: 1px solid var(--color-border); text-align: left; }
.table th { color: var(--color-muted); font-weight: 600; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.03em; background: var(--color-bg); }
@media (max-width: 480px) {
    .table th, .table td { padding: 9px 10px; }
    .table th { font-size: 0.7rem; letter-spacing: 0.01em; }
    .table td { font-size: 0.9rem; }
}
.table tbody tr:last-child td { border-bottom: none; }
.table tbody tr:hover { background: var(--color-bg); }
.search-bar { margin-bottom: 16px; max-width: 360px; }
.search-bar input[type=search] {
    width: 100%;
    min-height: 44px;
    padding: 8px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 1rem;
    background: var(--color-surface);
    color: var(--color-text);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.search-bar input[type=search]:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-soft);
    outline: none;
}
.table-row--warning, .table-row--warning:hover { background: var(--color-warning-bg); }
.table-row--total, .table-row--total:hover { background: var(--color-bg); }
.table-row--total td { border-top: 2px solid var(--color-border); }
.table-actions { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.text-success { color: var(--color-accent-text); font-weight: 600; }
.text-danger { color: var(--color-danger); font-weight: 600; }

/* --- Images --- */
.image-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin-bottom: 20px;
}
@media (min-width: 700px) {
    .image-grid { grid-template-columns: repeat(4, 1fr); }
}
.image-tile { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); }
.image-tile img { width: 100%; height: 150px; object-fit: cover; display: block; }
.image-tile form { padding: 6px; margin: 0; max-width: none; }
.upload-form { margin-bottom: 24px; }

/* --- Flash messages --- */
.flash { padding: 12px 16px; border-radius: var(--radius); margin-bottom: 16px; border-left: 4px solid transparent; font-weight: 500; }
.flash--success { background: #e6f4ea; color: #1e4620; border-left-color: #2f6f4f; }
.flash--error { background: var(--color-danger-soft); color: #611a15; border-left-color: var(--color-danger); }

/* --- Settings: logo + couleurs --- */
.logo-preview {
    display: flex;
    align-items: center;
    padding: 16px;
    background: var(--color-bg);
    border-radius: var(--radius);
    margin-bottom: 12px;
}
.logo-preview img { max-height: 64px; max-width: 240px; object-fit: contain; }

.color-presets { display: flex; gap: 10px; flex-wrap: wrap; margin: 12px 0 18px; }
.color-swatch {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid var(--color-surface);
    box-shadow: 0 0 0 1px var(--color-border);
    cursor: pointer;
    padding: 0;
    transition: transform 0.1s ease, box-shadow 0.15s ease;
}
.color-swatch:hover { transform: scale(1.1); box-shadow: 0 0 0 2px var(--color-muted); }
.color-swatch--green  { background: #2f6f4f; }
.color-swatch--blue   { background: #1d4ed8; }
.color-swatch--violet { background: #7c3aed; }
.color-swatch--red    { background: #be123c; }
.color-swatch--orange { background: #c2740c; }
.color-swatch--teal   { background: #0f766e; }