:root {
    --primary: #1f7a4d;
    --secondary: #f4b942;
    --dark: #173426;
    --bg: #f5f7f6;
    --card: #ffffff;
    --muted: #67736e;
    --danger: #c0392b;
    --success: #1f8f5f;
    --warning: #d99c16;
    --border: #e4ebe7;
    --shadow: 0 16px 40px rgba(18, 52, 36, 0.08);
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: #183326;
    background: radial-gradient(circle at top left, rgba(244,185,66,.16), transparent 30%), var(--bg);
    min-height: 100vh;
}

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

.auth-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.login-card {
    width: min(960px, 100%);
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    background: var(--card);
    border-radius: 28px;
    box-shadow: var(--shadow);
    overflow: hidden;
    border: 1px solid var(--border);
}

.login-hero {
    padding: 48px;
    color: #fff;
    background: linear-gradient(135deg, var(--primary), #134a31);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 560px;
}

.login-hero h1 { font-size: clamp(32px, 5vw, 54px); margin: 16px 0; line-height: 1.05; }
.login-hero p { color: rgba(255,255,255,.86); font-size: 17px; line-height: 1.6; }
.brand-pill { display: inline-flex; width: fit-content; align-items: center; gap: 10px; background: rgba(255,255,255,.14); padding: 10px 14px; border-radius: 999px; }
.brand-dot { width: 12px; height: 12px; border-radius: 50%; background: var(--secondary); }
.login-form { padding: 48px; display: flex; flex-direction: column; justify-content: center; }
.login-form h2 { margin: 0 0 8px; font-size: 28px; }
.login-form .muted { margin-bottom: 24px; }

.layout {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    min-height: 100vh;
}
.sidebar {
    background: #10251a;
    color: #fff;
    padding: 24px 18px;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}
.sidebar h2 { font-size: 20px; margin: 8px 0 4px; }
.sidebar .small { color: rgba(255,255,255,.72); }
.nav { margin-top: 28px; display: grid; gap: 8px; }
.nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255,255,255,.86);
    padding: 12px 14px;
    border-radius: 14px;
    text-decoration: none;
}
.nav a.active, .nav a:hover { background: rgba(255,255,255,.12); color: #fff; }
.content { padding: 28px; }
.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}
.topbar h1 { margin: 0; font-size: clamp(24px, 4vw, 38px); }
.profile-chip { display: flex; align-items: center; gap: 12px; background: #fff; padding: 10px 14px; border-radius: 999px; border: 1px solid var(--border); }
.avatar { width: 42px; height: 42px; border-radius: 50%; object-fit: cover; background: var(--border); }
.avatar-lg { width: 92px; height: 92px; border-radius: 24px; object-fit: cover; background: var(--border); }

.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 22px;
    box-shadow: var(--shadow);
}
.card h3 { margin-top: 0; }
.stat { font-size: 34px; font-weight: 800; margin: 8px 0 0; color: var(--primary); }
.muted { color: var(--muted); }
.small { font-size: 13px; }

form { margin: 0; }
label { display: block; font-weight: 700; font-size: 14px; margin: 14px 0 7px; }
input, select, textarea {
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 12px 13px;
    font: inherit;
    background: #fff;
    color: #183326;
    outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(31, 122, 77, .12); }
textarea { min-height: 110px; resize: vertical; }
.btn {
    border: 0;
    border-radius: 14px;
    padding: 12px 16px;
    font-weight: 800;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--primary);
    color: #fff;
    text-decoration: none;
}
.btn:hover { filter: brightness(.96); text-decoration: none; }
.btn:disabled { opacity: .55; cursor: not-allowed; filter: grayscale(.2); }
.btn.secondary { background: var(--secondary); color: #1d241f; }
.btn.light { background: #eef5f1; color: #173426; }
.btn.danger { background: var(--danger); color: #fff; }
.btn.block { width: 100%; }
.btn-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 18px; }

.alert { padding: 14px 16px; border-radius: 16px; margin-bottom: 18px; border: 1px solid var(--border); background: #fff; }
.alert-success { border-color: rgba(31,143,95,.28); background: #eefaf4; color: #12643f; }
.alert-error { border-color: rgba(192,57,43,.25); background: #fff0ef; color: #8d241b; }
.alert-info { border-color: rgba(31,122,77,.25); background: #f0f7f3; color: #173426; }

.table-wrap { overflow-x: auto; border-radius: 18px; border: 1px solid var(--border); background: #fff; }
table { width: 100%; border-collapse: collapse; min-width: 780px; }
th, td { text-align: left; padding: 13px 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { background: #f6faf8; font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: .02em; }
tr:last-child td { border-bottom: 0; }

.badge { display: inline-flex; padding: 6px 10px; border-radius: 999px; font-size: 12px; font-weight: 800; }
.badge-info { background: #e9f3ff; color: #17649b; }
.badge-success { background: #e8f8ef; color: #1b7b4f; }
.badge-warning { background: #fff5da; color: #9a6500; }
.badge-error { background: #ffe8e5; color: #a72b1e; }

.camera-box { display: grid; gap: 12px; }
.attendance-capture-grid { align-items: start; }
.camera-frame {
    position: relative;
    width: min(100%, 420px);
    margin: 0 auto;
    aspect-ratio: 3 / 4;
    border-radius: 26px;
    overflow: hidden;
    background: #dfe9e4;
    border: 1px solid var(--border);
    box-shadow: 0 12px 26px rgba(18, 52, 36, .10);
}
.camera-frame video,
.camera-frame canvas,
.camera-frame .selfie-preview {
    width: 100%;
    height: 100%;
    max-height: none;
    object-fit: cover;
    border: 0;
    border-radius: 0;
    background: #dfe9e4;
}
canvas { display: none; }
.selfie-preview { display: none; }
.portrait-guide {
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 14px;
    padding: 10px 12px;
    border-radius: 14px;
    background: rgba(0, 0, 0, .55);
    color: #fff;
    font-size: 12px;
    text-align: center;
    pointer-events: none;
}
.selfie-preview[style*="block"] + .portrait-guide { display: none; }
.attendance-photo {
    width: 74px;
    height: 96px;
    object-fit: cover;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: #eef5f1;
}
.map-link { font-size: 13px; font-weight: 700; }
.location-status { padding: 10px 12px; border-radius: 12px; background: #f4f8f6; border: 1px solid var(--border); line-height: 1.45; }

.user-card { display: flex; gap: 14px; align-items: center; }
.color-preview { height: 42px; border-radius: 12px; border: 1px solid var(--border); }
.footer { margin-top: 28px; color: var(--muted); font-size: 13px; text-align: center; }

@media (max-width: 980px) {
    .layout { grid-template-columns: 1fr; }
    .sidebar { height: auto; position: relative; }
    .nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .content { padding: 18px; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .login-card { grid-template-columns: 1fr; }
    .login-hero { min-height: auto; padding: 32px; }
    .login-form { padding: 32px; }
    .topbar { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 560px) {
    .nav { grid-template-columns: 1fr; }
    .card { padding: 16px; border-radius: 18px; }
    .profile-chip { border-radius: 18px; width: 100%; }
    .btn-row .btn { width: 100%; }
}


@media (max-width: 760px) {
    body { background: var(--bg); }
    .auth-page { padding: 12px; align-items: start; }
    .login-card { border-radius: 20px; }
    .login-hero { padding: 26px 22px; }
    .login-hero h1 { font-size: 30px; }
    .login-hero p { font-size: 15px; }
    .login-form { padding: 24px 20px; }
    .sidebar { padding: 16px 14px; }
    .sidebar h2 { font-size: 17px; }
    .nav { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 6px; margin-top: 16px; }
    .nav a { white-space: nowrap; min-width: max-content; padding: 10px 12px; }
    .content { padding: 14px; }
    .topbar { gap: 10px; margin-bottom: 14px; }
    .topbar h1 { font-size: 25px; }
    .profile-chip { padding: 10px; }
    .grid { gap: 12px; }
    .card { padding: 15px; border-radius: 18px; }
    input, select, textarea { border-radius: 12px; padding: 11px 12px; }
    .table-wrap { margin-left: -2px; margin-right: -2px; }
    table { min-width: 920px; font-size: 13px; }
    th, td { padding: 10px; }
    .camera-frame { width: min(100%, 360px); border-radius: 22px; }
    .attendance-photo { width: 64px; height: 86px; }
}

@media (max-width: 420px) {
    .login-hero h1 { font-size: 27px; }
    .brand-pill { font-size: 13px; }
    .camera-frame { width: 100%; }
    .portrait-guide { font-size: 11px; }
}