:root {
    --ink: #2b211b;
    --muted: #735f51;
    --line: #ead0ba;
    --surface: #ffffff;
    --page: #f8efe6;
    --cream: #fff3e7;
    --brand: #a9622c;
    --brand-strong: #211006;
    --brand-soft: #f6dfca;
    --accent: #11b8df;
    --accent-green: #16a03a;
    --gold: #b7791f;
    --danger: #9f1239;
}

* {
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    margin: 0;
    color: var(--ink);
    background: var(--page);
    font-family: "Segoe UI", Arial, sans-serif;
    letter-spacing: 0;
}

.app-shell {
    min-height: calc(100vh - 58px);
}

.app-navbar {
    background: var(--brand-strong);
    border-bottom: 3px solid var(--gold);
    box-shadow: 0 8px 24px rgba(37, 18, 7, 0.22);
    padding-block: 8px;
}

.app-navbar .nav-link {
    color: #fff;
}

.brand-lockup {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
    color: #fff;
    text-decoration: none;
}

.brand-lockup:hover {
    color: #fff;
}

.brand-copy strong,
.brand-copy small {
    display: block;
    line-height: 1.1;
}

.brand-copy strong {
    font-size: 1.04rem;
    font-weight: 800;
}

.brand-copy small {
    color: #ffe3c9;
    font-size: 0.82rem;
    font-weight: 700;
}

.app-navbar .nav-link {
    border-radius: 6px;
    margin-inline: 2px;
}

.app-navbar .navbar-toggler {
    border-color: rgba(255, 227, 201, 0.5);
}

.app-navbar .navbar-toggler-icon {
    filter: invert(1);
}

.app-navbar .nav-link:hover,
.app-navbar .nav-link.active {
    color: #fff;
    background: rgba(255, 227, 201, 0.16);
}

.login-screen {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 32px 16px;
    background:
        linear-gradient(135deg, rgba(33, 16, 6, 0.95), rgba(169, 98, 44, 0.9)),
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180' viewBox='0 0 180 180'%3E%3Cg fill='none' stroke='%23ffffff' stroke-opacity='.18'%3E%3Cpath d='M0 36h180M0 72h180M0 108h180M0 144h180M36 0v180M72 0v180M108 0v180M144 0v180'/%3E%3C/g%3E%3C/svg%3E");
}

.login-panel {
    width: min(100%, 560px);
    padding: 30px;
    background: var(--surface);
    border: 1px solid rgba(255, 255, 255, 0.24);
    border-radius: 8px;
    box-shadow: 0 22px 60px rgba(24, 34, 48, 0.28);
}

.login-brand {
    display: flex;
    gap: 16px;
    align-items: center;
    margin-bottom: 26px;
}

.login-brand h1,
.page-heading h1 {
    margin: 0;
    font-size: 1.8rem;
    font-weight: 700;
}

.brand-mark {
    width: 56px;
    height: 56px;
    display: grid;
    place-items: center;
    flex: 0 0 auto;
    color: var(--brand);
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
}

.brand-mark img {
    width: 88%;
    height: 88%;
    object-fit: contain;
}

.nav-brand-mark {
    width: 68px;
    height: 68px;
    box-shadow: 0 8px 18px rgba(0, 0, 0, 0.18);
}

.login-brand-mark {
    width: 92px;
    height: 92px;
}

.login-subtitle {
    color: var(--brand);
    font-weight: 700;
}

.stacked-form {
    display: grid;
    gap: 16px;
}

.demo-credentials {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    margin-top: 22px;
    color: var(--muted);
    font-size: 0.88rem;
}

.demo-credentials code {
    color: var(--brand-strong);
    background: var(--cream);
    border-radius: 6px;
    padding: 3px 7px;
}

.app-footer {
    padding: 16px 24px;
    color: var(--muted);
    background: var(--cream);
    border-top: 1px solid var(--line);
    font-size: 0.88rem;
    font-weight: 700;
    text-align: center;
}

.page-wrap {
    padding: 28px;
}

.narrow-wrap {
    max-width: 980px;
    margin-inline: auto;
}

.page-heading {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    align-items: flex-end;
    margin-bottom: 24px;
}

.action-row,
.toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}

.toolbar {
    justify-content: space-between;
    margin-bottom: 16px;
}

.toolbar h2,
.content-card h2 {
    margin: 0;
    font-size: 1.15rem;
    font-weight: 700;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 18px;
}

.summary-grid.four-cols {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.metric-card,
.content-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 10px 28px rgba(24, 34, 48, 0.06);
}

.metric-card {
    padding: 18px;
}

.metric-card span {
    display: block;
    color: var(--muted);
    font-size: 0.86rem;
}

.metric-card strong {
    display: block;
    margin-top: 8px;
    font-size: 1.45rem;
}

.content-card {
    padding: 20px;
    margin-bottom: 18px;
}

.app-table {
    min-width: 760px;
}

.app-table th {
    color: var(--muted);
    font-size: 0.76rem;
    text-transform: uppercase;
    white-space: nowrap;
}

.app-table td {
    vertical-align: top;
}

.row-hint {
    display: block;
    max-width: 440px;
    color: var(--muted);
    font-size: 0.85rem;
}

.search-control {
    position: relative;
    width: min(100%, 320px);
}

.search-control i {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--muted);
}

.search-control input {
    padding-left: 36px;
}

.compact-search {
    width: min(100%, 260px);
}

.inline-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

.inline-filter .form-select {
    width: min(100%, 260px);
}

.wide-filter {
    padding: 14px 16px;
}

.readonly-admin form[method="post"],
.readonly-admin a[href^="edit.php"] {
    display: none !important;
}

.app-tabs {
    margin-bottom: 18px;
}

.app-tabs .nav-link {
    color: var(--brand-strong);
}

.app-tabs .nav-link.active {
    font-weight: 700;
}

.admin-grid {
    display: grid;
    grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
    gap: 18px;
    align-items: start;
}

.manage-grid {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.two-col {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.report-filter {
    display: grid;
    grid-template-columns: repeat(7, minmax(130px, 1fr));
    gap: 12px;
    align-items: end;
}

.exam-search-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(170px, 1fr));
    gap: 12px;
    align-items: end;
}

.exam-info-table {
    min-width: 1180px;
}

.filter-actions,
.form-actions,
.action-buttons {
    display: flex;
    gap: 8px;
    align-items: center;
}

.inline-confirm-form {
    display: inline;
}

.multi-select {
    min-height: 148px;
}

.header-sample {
    color: var(--brand-strong);
    background: var(--cream);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 10px 12px;
    font-family: Consolas, "Courier New", monospace;
    font-size: 0.84rem;
    overflow-wrap: anywhere;
}

.crud-panels {
    display: grid;
    gap: 12px;
    margin-top: 12px;
}

.crud-panel {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
}

.crud-panel summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    padding: 13px 15px;
    color: var(--brand-strong);
    font-weight: 700;
    cursor: pointer;
}

.crud-panel summary span {
    min-width: 32px;
    border-radius: 999px;
    background: var(--cream);
    color: var(--brand);
    padding: 4px 8px;
    text-align: center;
    font-size: 0.82rem;
}

.crud-list {
    display: grid;
    gap: 10px;
    border-top: 1px solid var(--line);
    padding: 12px;
}

.crud-entry {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
    align-items: start;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 12px;
    background: #fffaf5;
}

.crud-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 10px;
    align-items: end;
}

.crud-form .span-2 {
    grid-column: span 2;
}

.exam-form,
.allocation-form {
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.crud-delete {
    align-self: end;
}

.report-question-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.report-question {
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 14px;
    background: #fffaf5;
}

.report-question p {
    min-height: 44px;
    margin: 0 0 10px;
    color: var(--ink);
}

.delete-panel {
    margin-top: 14px;
}

.duty-slip {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 34px;
    box-shadow: 0 12px 30px rgba(24, 34, 48, 0.08);
}

.slip-heading {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    align-items: flex-start;
    border-bottom: 2px solid var(--brand);
    padding-bottom: 18px;
    margin-bottom: 22px;
}

.slip-heading h2 {
    margin: 0;
    font-size: 1.7rem;
}

.slip-brand {
    display: flex;
    gap: 14px;
    align-items: center;
}

.slip-brand img {
    width: 92px;
    height: 92px;
    object-fit: contain;
}

.slip-badge {
    color: #fff;
    background: var(--brand);
    border-radius: 6px;
    padding: 8px 12px;
    font-weight: 700;
    text-align: center;
}

.slip-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.slip-grid div,
.slip-note {
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 12px;
}

.slip-grid span,
.slip-note span {
    display: block;
    color: var(--muted);
    font-size: 0.78rem;
    text-transform: uppercase;
}

.slip-grid strong,
.slip-note p {
    display: block;
    margin: 4px 0 0;
}

.slip-note {
    margin-top: 14px;
}

.signature-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
    margin-top: 46px;
}

.signature-row div {
    border-top: 1px solid var(--ink);
    padding-top: 8px;
    text-align: center;
    color: var(--muted);
}

.btn-primary {
    --bs-btn-bg: var(--brand);
    --bs-btn-border-color: var(--brand);
    --bs-btn-hover-bg: var(--brand-strong);
    --bs-btn-hover-border-color: var(--brand-strong);
}

.btn-outline-primary {
    --bs-btn-color: var(--brand);
    --bs-btn-border-color: var(--brand);
    --bs-btn-hover-bg: var(--brand);
    --bs-btn-hover-border-color: var(--brand);
}

.btn-outline-danger {
    --bs-btn-color: var(--danger);
    --bs-btn-border-color: var(--danger);
    --bs-btn-hover-bg: var(--danger);
    --bs-btn-hover-border-color: var(--danger);
}

@media (max-width: 900px) {
    .page-wrap {
        padding: 18px;
    }

    .page-heading {
        align-items: stretch;
        flex-direction: column;
    }

    .summary-grid,
    .admin-grid {
        grid-template-columns: 1fr;
    }

    .crud-entry,
    .crud-form {
        grid-template-columns: 1fr;
    }

    .crud-form .span-2 {
        grid-column: auto;
    }

    .summary-grid.four-cols,
    .report-filter,
    .exam-search-grid,
    .report-question-grid,
    .slip-grid,
    .signature-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {
    .login-panel {
        padding: 22px;
    }

    .login-brand h1,
    .page-heading h1 {
        font-size: 1.45rem;
    }

    .two-col {
        grid-template-columns: 1fr;
    }
}

@media print {
    body {
        background: #fff;
    }

    .app-navbar,
    .no-print {
        display: none !important;
    }

    .app-shell,
    .page-wrap,
    .narrow-wrap {
        min-height: auto;
        max-width: none;
        padding: 0;
        margin: 0;
    }

    .duty-slip {
        border: 0;
        box-shadow: none;
        padding: 0;
    }
}