:root {
    --navy: #1b2a4a;
    --accent: #b8935f;
    --bg: #f7f6f3;
    --surface: #ffffff;
    --ink: #1a1a1a;
    --muted: #6b7280;
    --border: #e3e0da;
    --success-bg: #e6f4ec; --success-text: #2f7a52;
    --warning-bg: #fdf3e3; --warning-text: #b7791f;
    --danger-bg: #fbe9e7;  --danger-text: #c0392b;
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: -apple-system, "Segoe UI", Inter, Arial, sans-serif;
    background: var(--bg);
    color: var(--ink);
}
body.page-dashboard {
    background: linear-gradient(160deg, var(--navy) 0%, #26385f 45%, var(--accent) 140%);
    min-height: 100vh;
}
body.page-dashboard .topbar, body.page-dashboard .tab-nav {
    background: rgba(255,255,255,0.92);
}
a { color: inherit; text-decoration: none; }

.app-shell { max-width: 1100px; margin: 0 auto; padding: 20px 24px 60px; }

.topbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.brand { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: 16px; }
.brand-logo { height: 26px; width: auto; display: block; }
.societe-switcher select { width: 240px; padding: 8px 10px; border-radius: 8px; border: 1px solid var(--border); background: var(--surface); font-size: 13px; }

.tab-nav {
    display: flex; gap: 4px; margin-bottom: 24px; overflow-x: auto; padding: 6px;
    background: var(--surface); border: 1px solid var(--border); border-radius: 12px;
}
.nav-pill {
    height: 34px; display: inline-flex; align-items: center; gap: 4px; padding: 0 16px;
    font-size: 13px; font-weight: 500; white-space: nowrap; border-radius: 8px;
    border: none; background: transparent; color: var(--muted); cursor: pointer;
    transition: background .12s ease, color .12s ease;
}
.nav-pill:hover { background: #f1efe9; color: var(--ink); }
.nav-pill.active { background: var(--navy); color: #fff; }
.nav-pill.active:hover { background: var(--navy); }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 20px 24px; margin-bottom: 20px; }
body.page-dashboard .card {
    box-shadow: 0 10px 30px rgba(15,23,42,0.18);
    border-color: transparent;
}
body.page-dashboard .kpi-card {
    box-shadow: 0 8px 20px rgba(15,23,42,0.14);
    border-color: transparent;
    padding: 18px 20px;
}

.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px,1fr)); gap: 12px; margin-bottom: 20px; }
.kpi-card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; }
.kpi-label { font-size: 13px; color: var(--muted); margin: 0 0 6px; }
.kpi-value { font-size: 22px; font-weight: 600; margin: 0; }
.kpi-warning .kpi-value { color: var(--warning-text); }
.kpi-danger .kpi-value { color: var(--danger-text); }

table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; padding: 8px 6px; color: var(--muted); font-weight: 400; border-bottom: 1px solid var(--border); }
td { padding: 8px 6px; border-bottom: 1px solid var(--border); }
.text-right { text-align: right; }
.mono { font-family: "SFMono-Regular", Consolas, monospace; font-size: 12px; }

.badge { font-size: 11px; padding: 3px 10px; border-radius: 100px; white-space: nowrap; }
.badge-paye        { background: var(--success-bg); color: var(--success-text); }
.badge-en_attente  { background: var(--warning-bg); color: var(--warning-text); }
.badge-echu        { background: var(--danger-bg);  color: var(--danger-text); }

.toolbar {
    display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; flex-wrap: wrap;
    background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 10px 16px;
}
.toolbar input[type=text], .toolbar select { padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; font-size: 13px; }

.date-range-group {
    display: flex; align-items: center; gap: 4px;
    background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 3px 6px;
}
.date-range-group span { font-size: 11px; color: var(--muted); white-space: nowrap; padding-left: 2px; }
.date-range-group input[type=date] { height: 28px; width: 118px; padding: 2px 4px; border: 1px solid var(--border); border-radius: 6px; font-size: 11.5px; }

.toolbar-actions { display: flex; justify-content: flex-end; gap: 8px; margin: 12px 0 16px; }

.btn {
    display: inline-flex; align-items: center; gap: 6px; height: 36px; padding: 0 14px;
    border-radius: 8px; border: 1px solid var(--border); background: var(--surface);
    font-size: 13px; cursor: pointer; color: var(--ink);
}
.btn-primary { background: var(--accent); color: #22190f; border-color: transparent; font-weight: 600; }
.btn-primary:hover { background: #c7a374; }
.btn-danger  { color: var(--danger-text); border-color: #f0cfc8; background: var(--danger-bg); }
.btn-danger:hover { background: #f6d9d3; }
.btn-sm { height: 30px; padding: 0 10px; }

form label { display: block; font-size: 13px; margin-bottom: 4px; }
form input[type=text], form input[type=email], form input[type=password], form input[type=date], form select, form textarea {
    width: 100%; padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; margin-top: 4px;
    font-family: inherit;
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 16px; margin-bottom: 16px; }
.form-grid .full { grid-column: 1 / -1; }
.form-actions { display: flex; justify-content: flex-end; gap: 8px; padding-top: 12px; border-top: 1px solid var(--border); }

.sub-tabs {
    display: flex; gap: 4px; margin-bottom: 16px;
    background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 6px;
}
.sub-tab { height: 32px; padding: 0 14px; font-size: 13px; border: none; background: transparent; color: var(--muted); border-bottom: 2px solid transparent; cursor: pointer; display: inline-flex; align-items: center; text-decoration: none; }
.sub-tab.active { color: var(--ink); border-bottom-color: var(--navy); font-weight: 500; }

.alert { padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; font-size: 13px; }
.alert-info { background: #eef2fb; color: var(--navy); }
.alert-error { background: var(--danger-bg); color: var(--danger-text); }

@media (max-width: 720px) {
    .app-shell { padding: 12px 12px 40px; }
    .topbar { flex-wrap: wrap; gap: 10px; }
    .topbar > div { flex-wrap: wrap; gap: 8px !important; }
    .tab-nav { overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .nav-pill { flex-shrink: 0; }

    .card { padding: 14px 16px; overflow-x: auto; -webkit-overflow-scrolling: touch; }
    .card table { min-width: 480px; }

    .form-grid { grid-template-columns: 1fr !important; }
    .form-grid .full { grid-column: 1 / -1 !important; }

    .toolbar { flex-direction: column; align-items: stretch; }
    .toolbar input[type=text], .toolbar select, .toolbar .date-range-group { width: 100%; }
    .toolbar-actions { flex-wrap: wrap; justify-content: stretch !important; }
    .toolbar-actions .btn, .toolbar-actions a.btn { flex: 1; text-align: center; }

    .date-range-group { flex-wrap: wrap; justify-content: center; }
    .date-range-group input[type=date] { width: 42%; flex: 1; }

    .kpi-grid { grid-template-columns: repeat(2, 1fr); }

    .sub-tabs { overflow-x: auto; -webkit-overflow-scrolling: touch; }

    .auth-card { padding: 24px 18px; max-width: 100%; }
}

/* ---- Écrans d'authentification ---- */
.auth-page {
    min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    background: linear-gradient(160deg, var(--navy) 0%, #26385f 55%, var(--accent) 130%);
    padding: 24px;
}
.auth-card {
    width: 100%; max-width: 400px; background: var(--surface);
    border-radius: 16px; padding: 32px 28px;
    box-shadow: 0 24px 60px rgba(0,0,0,0.25);
}
.auth-brand { display: flex; flex-direction: column; align-items: center; gap: 6px; margin-bottom: 24px; }
.auth-brand .auth-logo { height: 56px; width: auto; }
.auth-brand .name { font-weight: 700; font-size: 15px; letter-spacing: .02em; }
.auth-step { text-align: center; font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 4px; }
.auth-title { text-align: center; font-size: 18px; font-weight: 600; margin: 0 0 22px; }
.auth-card form label { margin-bottom: 14px; }
.auth-card .btn-primary { width: 100%; justify-content: center; height: 42px; font-size: 14px; margin-top: 6px; }
.auth-footer-link { display: block; text-align: center; font-size: 13px; color: var(--muted); margin-top: 18px; }
.auth-footer-link:hover { color: var(--navy); }
.auth-company-name { text-align: center; color: rgba(255,255,255,0.85); font-size: 13px; margin-bottom: 14px; }
.user-tile {
    display: flex; align-items: center; gap: 12px; padding: 12px 14px; border: 1px solid var(--border);
    border-radius: 10px; background: var(--surface); cursor: pointer; width: 100%; text-align: left;
    font-size: 14px; font-weight: 500; margin-bottom: 8px; transition: border-color .12s ease, box-shadow .12s ease;
}
.user-tile:hover { border-color: var(--navy); box-shadow: 0 2px 8px rgba(27,42,74,0.08); }
.user-avatar {
    width: 36px; height: 36px; border-radius: 50%; background: var(--navy); color: #fff;
    display: flex; align-items: center; justify-content: center; font-weight: 600; font-size: 14px; flex-shrink: 0;
}