:root {
    --primary: #0C447C;
    --primary-dark: #042C53;
    --primary-light: #E6F1FB;
    --success: #0F6E56;
    --success-light: #E1F5EE;
    --danger: #791F1F;
    --danger-light: #FCEBEB;
    --warning: #633806;
    --warning-light: #FAEEDA;
    --text-primary: #2C2C2A;
    --text-secondary: #444441;
    --text-muted: #5F5E5A;
    --border: #888780;
    --border-light: #D3D1C7;
    --bg: #F1EFE8;
    --white: #ffffff;
    --radius: 8px;
    --radius-lg: 12px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text-primary);
    font-size: 15px;
    line-height: 1.6;
}

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

/* ── Navigation ── */
nav {
    background: var(--primary);
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
}
nav .brand {
    color: white;
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 0.01em;
}
nav .nav-links { display: flex; gap: 1.5rem; align-items: center; }
nav .nav-links a {
    color: rgba(255,255,255,0.85);
    font-size: 14px;
    text-decoration: none;
}
nav .nav-links a:hover { color: white; }
nav .nav-links .btn-logout {
    background: rgba(255,255,255,0.15);
    border: 0.5px solid rgba(255,255,255,0.3);
    color: white;
    padding: 5px 14px;
    border-radius: var(--radius);
    font-size: 13px;
    cursor: pointer;
    text-decoration: none;
}
nav .nav-links .btn-logout:hover { background: rgba(255,255,255,0.25); }

/* ── Page layout ── */
.page { max-width: 1100px; margin: 0 auto; padding: 2rem 1.5rem; }
.page-narrow { max-width: 520px; margin: 0 auto; padding: 2rem 1rem; }

/* ── Cards ── */
.card {
    background: var(--white);
    border: 0.5px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 1.5rem 1.75rem;
}
.card-header {
    padding-bottom: 1rem;
    margin-bottom: 1.25rem;
    border-bottom: 0.5px solid var(--border-light);
}
.card-header h1 { font-size: 18px; font-weight: 500; color: var(--text-primary); }
.card-header p  { font-size: 13px; color: var(--text-muted); margin-top: 3px; }

/* ── Forms ── */
.form-group { margin-bottom: 1.1rem; }
.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 5px;
}
.form-group label .req { color: var(--danger); margin-left: 2px; }
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0 12px;
    height: 38px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 14px;
    color: var(--text-primary);
    background: var(--white);
    font-family: inherit;
}
.form-group textarea { height: auto; padding: 10px 12px; resize: vertical; }
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-secondary); opacity: 0.8; }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(12,68,124,0.15);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-hint { font-size: 12px; color: var(--text-secondary); margin-top: 4px; }
.req-note { font-size: 12px; color: var(--text-muted); margin: 0.75rem 0; }
.req-note span { color: var(--danger); }

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 40px;
    padding: 0 20px;
    border: none;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
    text-decoration: none;
    transition: background 0.15s;
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); color: white; }
.btn-success { background: var(--success); color: white; }
.btn-success:hover { background: #085041; color: white; }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { background: #501313; color: white; }
.btn-secondary {
    background: none;
    border: 0.5px solid var(--border);
    color: var(--text-primary);
}
.btn-secondary:hover { background: var(--bg); }
.btn-sm { height: 32px; padding: 0 14px; font-size: 13px; }
.btn-full { width: 100%; }

/* ── Alerts ── */
.alert {
    padding: 10px 14px;
    border-radius: var(--radius);
    font-size: 13px;
    margin-bottom: 1rem;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}
.alert-success { background: var(--success-light); color: var(--success); border-left: 3px solid var(--success); }
.alert-danger  { background: var(--danger-light);  color: var(--danger);  border-left: 3px solid var(--danger); }
.alert-warning { background: var(--warning-light); color: var(--warning); border-left: 3px solid var(--warning); }

/* ── Tables ── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
thead th {
    text-align: left;
    padding: 10px 14px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 0.5px solid var(--border-light);
    background: var(--bg);
}
tbody td {
    padding: 12px 14px;
    border-bottom: 0.5px solid var(--border-light);
    color: var(--text-primary);
    vertical-align: middle;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: var(--primary-light); }

/* ── Badges ── */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 500;
}
.badge-submitted { background: #E6F1FB; color: #0C447C; }
.badge-reviewed  { background: #E1F5EE; color: #0F6E56; }
.badge-late      { background: #FAEEDA; color: #633806; }
.badge-deleted   { background: #FCEBEB; color: #791F1F; }

/* ── Stats row ── */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin-bottom: 1.5rem; }
.stat-card {
    background: var(--white);
    border: 0.5px solid var(--border-light);
    border-radius: var(--radius);
    padding: 1rem;
}
.stat-card .stat-label { font-size: 12px; color: var(--text-muted); margin-bottom: 4px; }
.stat-card .stat-value { font-size: 24px; font-weight: 500; color: var(--text-primary); }

/* ── Auth pages ── */
.auth-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    background: var(--bg);
}
.auth-card {
    background: var(--white);
    border: 0.5px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 2rem;
    width: 100%;
    max-width: 440px;
}
.auth-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 1.5rem;
    padding-bottom: 1.25rem;
    border-bottom: 0.5px solid var(--border-light);
}
.auth-logo-icon {
    width: 32px; height: 32px;
    background: var(--primary);
    border-radius: 7px;
    display: flex; align-items: center; justify-content: center;
}
.auth-logo-icon svg { width: 16px; height: 16px; }
.auth-logo-text { font-size: 15px; font-weight: 500; color: var(--text-primary); }
.auth-footer { text-align: center; font-size: 13px; color: var(--text-muted); margin-top: 1.25rem; }
.auth-footer a { color: var(--primary); font-weight: 500; }

/* ── Receipt ── */
.receipt-ref {
    font-size: 22px;
    font-weight: 500;
    color: var(--primary);
    margin: 0.5rem 0 1.5rem;
    letter-spacing: 0.02em;
}
.receipt-detail { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 0.5px solid var(--border-light); font-size: 14px; }
.receipt-detail:last-child { border-bottom: none; }
.receipt-detail .label { color: var(--text-muted); }
.receipt-detail .value { font-weight: 500; color: var(--text-primary); }

/* ── Responsive ── */
@media (max-width: 600px) {
    .form-row { grid-template-columns: 1fr; }
    .stats { grid-template-columns: 1fr 1fr; }
    nav { padding: 0 1rem; }
    .page { padding: 1rem; }
}