/* Back-office — Gestion glace & tricycles. Aucune dépendance externe : fonctionne hors internet. */
:root {
    --primary: #1f4e4a;
    --primary-light: #2a8a7c;
    --primary-bg: #e3f1ee;
    --bg: #f4f6f6;
    --surface: #ffffff;
    --text: #1d2626;
    --muted: #5f6b6b;
    --border: #d7dfde;
    --danger: #b3261e;
    --danger-bg: #fbe9e7;
    --warning: #8a5a00;
    --warning-bg: #fff4d6;
    --success: #1e6b3a;
    --success-bg: #e3f4e8;
    --radius: 8px;
}

* { box-sizing: border-box; }
html { font-size: 15px; }
body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.45;
}
a { color: var(--primary-light); }

/* ---------- Mise en page ---------- */
.layout { display: flex; min-height: 100vh; }
.sidebar {
    width: 240px;
    flex-shrink: 0;
    background: var(--primary);
    color: #fff;
    padding: 1rem 0;
}
.sidebar .brand { padding: 0 1.25rem 1rem; font-weight: 700; font-size: 1.1rem; line-height: 1.25; }
.sidebar .brand small { display: block; font-weight: 400; opacity: .75; font-size: .8rem; }
.sidebar nav a {
    display: block;
    padding: .55rem 1.25rem;
    color: #e8f3f1;
    text-decoration: none;
    border-left: 3px solid transparent;
}
.sidebar nav a:hover { background: rgba(255,255,255,.08); }
.sidebar nav a.active { background: rgba(255,255,255,.14); border-left-color: #7fd6c7; color: #fff; font-weight: 600; }
.sidebar .nav-title { padding: .9rem 1.25rem .3rem; font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; opacity: .6; }

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
    display: flex; justify-content: space-between; align-items: center; gap: 1rem;
    background: var(--surface); border-bottom: 1px solid var(--border);
    padding: .7rem 1.5rem;
}
.topbar .user { color: var(--muted); font-size: .9rem; }
.topbar form { display: inline; }
.content { padding: 1.5rem; max-width: 1200px; width: 100%; }

.page-header { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.25rem; }
.page-header h1 { margin: 0; font-size: 1.5rem; color: var(--primary); }

/* ---------- Composants ---------- */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem; margin-bottom: 1.25rem; }
.card h2 { margin: 0 0 .9rem; font-size: 1.1rem; color: var(--primary); }

.grid { display: grid; gap: 1rem; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); }

.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.25rem; }
.stat .label { color: var(--muted); font-size: .85rem; }
.stat .value { font-size: 1.6rem; font-weight: 700; margin-top: .2rem; }
.stat .sub { color: var(--muted); font-size: .82rem; }
.stat.alert { border-color: var(--danger); background: var(--danger-bg); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; background: var(--surface); }
th, td { padding: .6rem .75rem; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
th { background: var(--primary-bg); color: var(--primary); font-size: .85rem; font-weight: 600; white-space: nowrap; }
tr:hover td { background: #fafcfc; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.empty { color: var(--muted); text-align: center; padding: 2rem; }

.badge { display: inline-block; padding: .12rem .55rem; border-radius: 999px; font-size: .78rem; font-weight: 600; background: #eceff0; color: var(--muted); white-space: nowrap; }
.badge.ok { background: var(--success-bg); color: var(--success); }
.badge.warn { background: var(--warning-bg); color: var(--warning); }
.badge.danger { background: var(--danger-bg); color: var(--danger); }

.btn {
    display: inline-flex; align-items: center; gap: .35rem;
    padding: .55rem 1rem; border-radius: 6px; border: 1px solid var(--primary-light);
    background: var(--primary-light); color: #fff; font: inherit; font-weight: 600;
    text-decoration: none; cursor: pointer; min-height: 40px;
}
.btn:hover { background: var(--primary); }
.btn.secondary { background: var(--surface); color: var(--primary); border-color: var(--border); }
.btn.secondary:hover { background: var(--primary-bg); }
.btn.danger { background: var(--danger); border-color: var(--danger); }
.btn.small { padding: .3rem .65rem; min-height: 32px; font-size: .85rem; }
.btn.link { background: none; border: none; color: var(--primary-light); padding: 0; min-height: 0; font-weight: 400; text-decoration: underline; }
.actions { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; }

.flash { padding: .8rem 1rem; border-radius: 6px; margin-bottom: 1rem; }
.flash.success { background: var(--success-bg); color: var(--success); }
.flash.error { background: var(--danger-bg); color: var(--danger); }
.flash.warning { background: var(--warning-bg); color: var(--warning); }
.flash ul { margin: .3rem 0 0; padding-left: 1.2rem; }

/* ---------- Formulaires ---------- */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1rem 1.25rem; }
.field { display: flex; flex-direction: column; gap: .3rem; }
.field.full { grid-column: 1 / -1; }
label { font-weight: 600; font-size: .9rem; }
.hint { color: var(--muted); font-size: .8rem; font-weight: 400; }
input[type=text], input[type=number], input[type=date], input[type=email], input[type=password], input[type=tel], select, textarea {
    width: 100%; padding: .55rem .7rem; border: 1px solid var(--border); border-radius: 6px;
    font: inherit; background: #fff; min-height: 40px;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary-light); outline-offset: 0; border-color: var(--primary-light); }
textarea { min-height: 80px; resize: vertical; }
.checkbox { display: flex; align-items: center; gap: .5rem; font-weight: 400; }
.checkbox input { width: 18px; height: 18px; }
.error { color: var(--danger); font-size: .82rem; }
.is-invalid { border-color: var(--danger) !important; }
.form-actions { display: flex; gap: .75rem; margin-top: 1.25rem; flex-wrap: wrap; }
fieldset { border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.25rem; margin: 0 0 1rem; }
legend { font-weight: 700; color: var(--primary); padding: 0 .4rem; }

.filters { display: flex; gap: .75rem; align-items: flex-end; flex-wrap: wrap; margin-bottom: 1rem; }
.filters .field { min-width: 150px; }

dl.details { display: grid; grid-template-columns: max-content 1fr; gap: .45rem 1.5rem; margin: 0; }
dl.details dt { color: var(--muted); }
dl.details dd { margin: 0; font-weight: 500; }

.pagination { display: flex; gap: .3rem; list-style: none; padding: 0; margin: 1rem 0 0; flex-wrap: wrap; }
.pagination li > * { display: block; padding: .35rem .7rem; border: 1px solid var(--border); border-radius: 4px; background: #fff; text-decoration: none; }
.pagination li.active > * { background: var(--primary-light); color: #fff; border-color: var(--primary-light); }
.pagination li.disabled > * { color: var(--muted); }

/* ---------- Connexion ---------- */
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 1rem; background: var(--primary); }
.login-card { background: #fff; border-radius: 12px; padding: 2rem; width: 100%; max-width: 380px; }
.login-card h1 { margin: 0 0 .25rem; color: var(--primary); font-size: 1.4rem; }
.login-card p { margin: 0 0 1.5rem; color: var(--muted); }
.login-card .field { margin-bottom: 1rem; }
.login-card .btn { width: 100%; justify-content: center; }

/* ---------- Mobile / tablette ---------- */
.menu-toggle { display: none; }
@media (max-width: 860px) {
    .layout { flex-direction: column; }
    .sidebar { width: 100%; padding: .5rem 0; }
    .sidebar nav { display: none; }
    .sidebar.open nav { display: block; }
    .sidebar .brand { display: flex; justify-content: space-between; align-items: center; padding-bottom: .5rem; }
    .menu-toggle { display: inline-block; background: none; border: 1px solid rgba(255,255,255,.4); color: #fff; border-radius: 6px; padding: .35rem .7rem; font: inherit; }
    .content { padding: 1rem; }
    .topbar { padding: .6rem 1rem; }
}

@media print {
    .sidebar, .topbar, .actions, .form-actions, .filters { display: none !important; }
    .content { padding: 0; }
}