:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --green: #16a34a;
    --green-dark: #15803d;
    --red: #dc2626;
    --red-dark: #b91c1c;
    --bg: #f1f5f9;
    --card: #ffffff;
    --border: #e2e8f0;
    --text: #0f172a;
    --muted: #64748b;
    --radius: 10px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.45;
}

h1, h2, h3 { margin: 0 0 0.5rem; }
h1 { font-size: 1.5rem; }
h2 { font-size: 1.15rem; }

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.muted { color: var(--muted); }
code { background: #eef2f7; padding: 2px 6px; border-radius: 4px; font-size: 0.85rem; word-break: break-all; }

/* ---------- Top bar (admin) ---------- */
.topbar {
    background: #0f172a;
    color: #fff;
}
.topbar-inner {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}
.brand { color: #fff; font-weight: 700; font-size: 1.1rem; }
.brand:hover { text-decoration: none; color: #fff; }
.nav { display: flex; gap: 0.5rem; flex: 1; }
.nav a {
    color: #cbd5e1;
    padding: 0.35rem 0.6rem;
    border-radius: 6px;
}
.nav a:hover { color: #fff; text-decoration: none; background: rgba(255,255,255,0.08); }
.nav a.active { color: #fff; background: var(--primary); }

.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 1.5rem 1rem;
}

.page-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
}

/* ---------- Cards & stats ---------- */
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    margin-bottom: 1rem;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.stat {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    text-align: center;
}
.stat-value { font-size: 2rem; font-weight: 700; color: var(--primary); }
.stat-label { color: var(--muted); font-size: 0.85rem; }

.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}
@media (max-width: 720px) { .two-col { grid-template-columns: 1fr; } }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.6rem 0.75rem; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
th { background: #f8fafc; color: var(--muted); font-weight: 600; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; }
tr:last-child td { border-bottom: none; }
.actions { display: flex; gap: 0.4rem; align-items: center; white-space: nowrap; }
.actions form { margin: 0; }

/* ---------- Forms ---------- */
label { display: block; margin-bottom: 0.75rem; font-weight: 500; font-size: 0.9rem; }
input, select {
    display: block;
    width: 100%;
    margin-top: 0.25rem;
    padding: 0.55rem 0.65rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    background: #fff;
}
input:focus, select:focus { outline: 2px solid var(--primary); border-color: var(--primary); }

.form-row { display: flex; gap: 0.6rem; }
.form-row input { flex: 1; }
.form-row input, .form-row button { margin-top: 0; }
@media (max-width: 720px) { .form-row { flex-direction: column; } }

.filter-bar { display: flex; gap: 0.75rem; align-items: flex-end; flex-wrap: wrap; }
.filter-bar label { flex: 1; min-width: 160px; margin-bottom: 0; }

/* ---------- Buttons ---------- */
.btn {
    display: inline-block;
    padding: 0.55rem 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fff;
    color: var(--text);
    font-size: 0.9rem;
    font-family: inherit;
    cursor: pointer;
    text-align: center;
}
.btn:hover { text-decoration: none; background: #f8fafc; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-danger { background: #fff; color: var(--red); border-color: var(--red); }
.btn-danger:hover { background: #fef2f2; }
.btn-ghost { background: transparent; border-color: transparent; color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,0.08); }
.btn-block { width: 100%; }
.btn-sm { padding: 0.3rem 0.6rem; font-size: 0.8rem; }
.btn-green { background: var(--green); border-color: var(--green); color: #fff; }
.btn-green:hover { background: var(--green-dark); }
.btn-red { background: var(--red); border-color: var(--red); color: #fff; }
.btn-red:hover { background: var(--red-dark); }
.btn-lg { padding: 0.9rem 1.5rem; font-size: 1.1rem; font-weight: 600; }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }

/* ---------- Alerts / badges ---------- */
.alert { padding: 0.7rem 0.9rem; border-radius: 8px; margin-bottom: 1rem; }
.alert-error { background: #fef2f2; color: var(--red); border: 1px solid #fecaca; }
.alert-success { background: #f0fdf4; color: var(--green-dark); border: 1px solid #bbf7d0; }
.badge { display: inline-block; padding: 0.15rem 0.5rem; border-radius: 999px; font-size: 0.75rem; font-weight: 600; }
.badge-green { background: #dcfce7; color: var(--green); }
.badge-red { background: #fef2f2; color: var(--red); }
.topbar-actions { display: flex; align-items: center; gap: 0.5rem; }
/* ---------- Login ---------- */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 1rem; }
.login-card { width: 100%; max-width: 380px; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 2rem; }
.login-card h1 { text-align: center; }

/* ---------- QR ---------- */
.qrcode-box { display: flex; justify-content: center; padding: 1rem; background: #fff; border: 1px solid var(--border); border-radius: 8px; margin-bottom: 0.75rem; }
.qr-url { text-align: center; margin-bottom: 0.75rem; }

.details { display: grid; grid-template-columns: auto 1fr; gap: 0.5rem 1rem; margin: 0; }
.details dt { font-weight: 600; color: var(--muted); }
.details dd { margin: 0; }

/* ---------- Clock PWA ---------- */
.clock { min-height: 100vh; display: flex; flex-direction: column; background: var(--bg); }
.clock-header {
    text-align: center;
    padding: 1.5rem 1rem 1rem;
    background: linear-gradient(160deg, var(--primary), var(--primary-dark));
    color: #fff;
}
.clock-header h1 { margin: 0; font-size: 1.4rem; }
.clock-location { font-size: 1.2rem; font-weight: 600; margin-top: 0.25rem; }
.clock-address { color: rgba(255,255,255,0.85); }

.clock-main { flex: 1; width: 100%; max-width: 460px; margin: 0 auto; padding: 1rem; }
.clock-main .card { padding: 1.25rem; }

.staff-line { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 1rem; }
.link { background: none; border: none; color: var(--primary); cursor: pointer; font-size: 0.85rem; padding: 0; }

.status {
    text-align: center;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-weight: 600;
}
.status.status-out { background: #f1f5f9; color: var(--muted); }
.status.status-in { background: #dcfce7; color: var(--green-dark); }

.clock-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }

.message {
    margin-top: 1rem;
    padding: 0.75rem;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
}
.message.success { background: #dcfce7; color: var(--green-dark); }
.message.error { background: #fef2f2; color: var(--red); }

.geo-note { text-align: center; margin-top: 0.75rem; font-size: 0.8rem; }

.clock-footer { text-align: center; padding: 1rem; font-size: 0.8rem; }

/* ---------- Map / geofence ---------- */
.map-box {
    height: 380px;
    border-radius: 8px;
    border: 1px solid var(--border);
    z-index: 0;
}
.geo-row {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 1rem;
}
@media (max-width: 720px) { .geo-row { grid-template-columns: 1fr; } }
.geo-controls { display: flex; flex-direction: column; gap: 0.6rem; }
.geo-controls p { margin: 0; }
.map-pin {
    background: #dc2626;
    border: 2px solid #fff;
    border-radius: 50%;
    box-shadow: 0 0 6px rgba(0, 0, 0, 0.4);
}

/* ---------- Landing page ---------- */
.landing { background: #fff; }
.landing-nav {
    border-bottom: 1px solid var(--border);
    background: #fff;
    position: sticky;
    top: 0;
    z-index: 10;
}
.landing-nav-inner {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0.9rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.landing-brand { text-decoration: none; color: var(--text); }
.landing-brand:hover { text-decoration: none; }
.landing-logo { font-weight: 800; font-size: 1.15rem; letter-spacing: -0.01em; }

.landing-hero {
    max-width: 780px;
    margin: 0 auto;
    text-align: center;
    padding: 5rem 1.5rem 3.5rem;
}
.landing-hero h1 {
    font-size: 2.6rem;
    line-height: 1.15;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}
.landing-sub { color: var(--muted); font-size: 1.15rem; max-width: 560px; margin: 0 auto 2rem; }
.landing-cta { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; margin-bottom: 1.5rem; }
.landing-staff-note { color: var(--muted); font-size: 0.9rem; }

.landing-features {
    max-width: 1080px;
    margin: 0 auto;
    padding: 2rem 1rem 4rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 1.25rem;
}
.feature {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
}
.feature h3 { color: var(--primary); margin-bottom: 0.5rem; }
.feature p { color: var(--muted); margin: 0; }

.landing-footer {
    border-top: 1px solid var(--border);
    text-align: center;
    padding: 1.5rem 1rem;
    color: var(--muted);
    font-size: 0.85rem;
}
.landing-footer p { margin: 0; }

@media (max-width: 640px) {
    .landing-hero { padding: 3rem 1.25rem 2.5rem; }
    .landing-hero h1 { font-size: 2rem; }
}