:root {
    --bg: #f4f6f8;
    --surface: #ffffff;
    --surface-2: #eef3f7;
    --ink: #17212b;
    --muted: #667789;
    --line: #d9e1e8;
    --primary: #146c5c;
    --primary-dark: #0d4d42;
    --danger: #b22b34;
    --warning: #a06408;
    --success: #19713f;
    --sidebar: #16232e;
    --sidebar-active: #243747;
    --radius: 8px;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--ink);
}

a {
    color: inherit;
    text-decoration: none;
}

.sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: 248px;
    background: var(--sidebar);
    color: #f8fbfd;
    padding: 20px 16px;
    overflow-y: auto;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.brand-mark,
.brand-logo {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius);
    background: #e5f4ef;
    color: var(--primary-dark);
    font-weight: 800;
    letter-spacing: 0;
}

.brand-logo {
    overflow: hidden;
    background: #ffffff;
    border: 1px solid rgba(20, 108, 92, 0.16);
}

.brand-logo img {
    display: block;
    width: 92%;
    height: 92%;
    object-fit: contain;
}

.login-logo {
    width: 104px;
    height: 122px;
    border: 0;
    border-radius: 0;
    background: transparent;
}

.brand strong,
.brand small {
    display: block;
}

.brand small {
    color: #b9c9d5;
    margin-top: 2px;
}

nav {
    display: grid;
    gap: 14px;
}

nav a {
    display: block;
    padding: 10px 12px;
    border-radius: var(--radius);
    color: #dce7ee;
    line-height: 1.25;
    white-space: normal;
}

nav a:hover,
nav a.active {
    background: var(--sidebar-active);
    color: #ffffff;
}

.nav-section {
    display: grid;
    gap: 6px;
}

.nav-group-title {
    display: block;
    padding: 0 12px 2px;
    color: #9fb3c2;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0;
    text-transform: uppercase;
}

.nav-card-group {
    padding: 10px 8px 8px;
    border: 1px solid rgba(220, 231, 238, 0.12);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.035);
}

.nav-sub {
    display: grid;
    gap: 4px;
    margin-top: 2px;
    padding-left: 8px;
    border-left: 2px solid rgba(159, 179, 194, 0.35);
}

.nav-sub a {
    padding: 8px 10px;
    font-size: 13px;
    color: #cbd9e3;
}

.nav-soon {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 8px 10px;
    border-radius: var(--radius);
    color: #9fb3c2;
    font-size: 13px;
    cursor: not-allowed;
}

.nav-soon small {
    color: #7f93a4;
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
}

.main {
    margin-left: 248px;
    padding: 24px;
}

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

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.topbar h1 {
    margin: 0;
    font-size: 28px;
    letter-spacing: 0;
}

.topbar p {
    margin: 4px 0 0;
    color: var(--muted);
}

.login-panel {
    width: min(420px, 100%);
}

.login-card,
.panel,
.stat {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: 0 10px 26px rgba(17, 33, 46, 0.06);
}

.login-card {
    padding: 30px 32px 32px;
}

.login-brand {
    color: var(--ink);
    flex-direction: column;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    text-align: center;
}

.login-brand strong {
    display: block;
    max-width: 320px;
    font-size: 20px;
    line-height: 1.25;
}

.login-brand small {
    color: var(--muted);
}

.panel {
    margin-bottom: 20px;
}

.panel-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 20px;
    border-bottom: 1px solid var(--line);
}

.panel-head h2 {
    margin: 0;
    font-size: 18px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.stat {
    padding: 18px;
}

.stat span {
    display: block;
    color: var(--muted);
    font-size: 14px;
}

.stat strong {
    display: block;
    margin-top: 8px;
    font-size: 24px;
}

.toolbar {
    display: flex;
    align-items: end;
    gap: 10px;
    margin-bottom: 18px;
}

.stack,
.form-grid {
    display: grid;
    gap: 14px;
}

.form-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    padding: 20px;
}

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

label span,
.inline-field span {
    display: block;
    margin-bottom: 6px;
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
}

input,
select,
textarea {
    width: 100%;
    min-height: 42px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 9px 11px;
    background: #ffffff;
    color: var(--ink);
    font: inherit;
}

textarea {
    min-height: 70px;
    resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
    outline: 3px solid rgba(20, 108, 92, 0.18);
    border-color: var(--primary);
}

.form-actions {
    align-self: end;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 9px 14px;
    border: 1px solid transparent;
    border-radius: var(--radius);
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
}

.button.primary {
    background: var(--primary);
    color: #ffffff;
}

.button.primary:hover {
    background: var(--primary-dark);
}

.button.secondary {
    background: var(--surface-2);
    color: var(--ink);
    border-color: var(--line);
}

.button.danger {
    background: var(--danger);
    color: #ffffff;
}

.button.tiny {
    min-height: 32px;
    padding: 5px 10px;
    font-size: 13px;
}

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: top;
}

th {
    background: #f7fafc;
    color: #46596b;
    font-size: 13px;
}

td small {
    display: block;
    color: var(--muted);
    margin-top: 3px;
}

.num {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.amount-mismatch {
    color: var(--danger);
    font-weight: 800;
}

.blink-mismatch {
    animation: blinkMismatch 1s ease-in-out infinite;
}

@keyframes blinkMismatch {
    0%, 100% { opacity: 1; }
    50% { opacity: .35; }
}

.actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

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

.approval-form {
    display: grid;
    gap: 8px;
    min-width: 220px;
}

.split-actions {
    display: flex;
    gap: 8px;
}

.badge {
    display: inline-flex;
    align-items: center;
    min-height: 24px;
    border-radius: 999px;
    padding: 3px 9px;
    background: #e8eef3;
    color: #314456;
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
}

.badge.active,
.badge.open,
.badge.approved,
.badge.matched {
    background: #dff3e8;
    color: var(--success);
}

.badge.inactive,
.badge.closed,
.badge.rejected,
.badge.mismatch {
    background: #f7dfe2;
    color: var(--danger);
}

.badge.pending,
.badge.warning {
    background: #fff0d7;
    color: var(--warning);
}

.alert {
    margin-bottom: 16px;
    border-radius: var(--radius);
    padding: 12px 14px;
    border: 1px solid var(--line);
    background: #edf5ff;
}

.alert.success {
    background: #e6f5ed;
    color: var(--success);
    border-color: #b8dec9;
}

.alert.danger {
    background: #fbe5e8;
    color: var(--danger);
    border-color: #efbdc3;
}

.alert.warning {
    background: #fff2db;
    color: var(--warning);
    border-color: #eac98c;
}

.empty {
    color: var(--muted);
    text-align: center;
    padding: 28px;
}

canvas {
    display: block;
    width: 100%;
    padding: 18px 20px 22px;
}

.chart-scroll {
    overflow-x: auto;
}

.chart-scroll canvas {
    min-width: 720px;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    padding: 20px;
}

.info-item {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 16px;
    background: #fbfdfe;
}

.info-item span,
.info-item small {
    display: block;
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
}

.info-item strong {
    display: block;
    margin-top: 7px;
    font-size: 20px;
}

.info-item small {
    margin-top: 6px;
}

code {
    white-space: pre-wrap;
    word-break: break-word;
    color: #30495f;
}

.panel-actions {
    display: flex;
    justify-content: flex-end;
    padding: 16px 20px 20px;
}

.public-pay-body {
    background: linear-gradient(180deg, #edf3f7 0%, #f8fbfd 46%, #eef3f7 100%);
}

.public-pay-shell {
    width: min(980px, 100%);
    margin: 0 auto;
    padding: 34px 24px;
}

.public-pay-footer {
    margin-top: 22px;
    padding-top: 4px;
    color: #5f6c76;
    font-size: 11px;
    font-style: italic;
    font-weight: 700;
    line-height: 1.55;
    text-align: center;
}

.public-pay-footer p {
    margin: 0;
}

.public-pay-hero {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    align-items: center;
    margin-bottom: 22px;
    padding: 34px 28px;
    border: 1px solid var(--line);
    border-top: 5px solid #2f76bd;
    border-radius: var(--radius);
    background: linear-gradient(180deg, #ffffff 0%, #f7fbfd 100%);
    box-shadow: 0 16px 34px rgba(17, 33, 46, 0.08);
}

.public-pay-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    max-width: 760px;
    margin: 0 auto;
    text-align: center;
}

.public-pay-brand img {
    width: 124px;
    height: 146px;
    object-fit: contain;
}

.public-pay-brand strong,
.public-pay-brand span {
    display: block;
}

.public-pay-brand strong {
    margin-top: 8px;
    color: var(--ink);
    font-size: 34px;
    line-height: 1.08;
}

.public-pay-brand span {
    color: #43586b;
    font-size: 14px;
    font-weight: 800;
    line-height: 1.45;
    text-transform: uppercase;
}

.public-search {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
    align-items: end;
    width: min(620px, 100%);
    margin: 0 auto;
    padding: 16px;
    border: 1px solid #cfdce6;
    border-radius: var(--radius);
    background: #ffffff;
    box-shadow: 0 10px 24px rgba(47, 118, 189, 0.1);
    text-align: left;
}

.public-panel {
    box-shadow: 0 10px 26px rgba(17, 33, 46, 0.06);
}

.pay-choice-form {
    display: grid;
    gap: 18px;
    padding: 0 20px 20px;
}

.payer-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    padding: 0 20px 20px;
    align-items: end;
}

.pay-amount-input {
    max-width: 140px;
    text-align: right;
}

.student-payment-card {
    padding: 22px 20px 18px;
}

.student-payment-heading h2 {
    margin: 0 0 18px;
    font-size: 20px;
}

.student-identity {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(120px, 0.75fr) minmax(0, 1.5fr);
    gap: 12px;
    padding: 14px;
    border: 1px solid #d2dfe8;
    border-radius: var(--radius);
    background: #f7fafc;
}

.student-identity span {
    display: block;
    color: var(--muted);
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
}

.student-identity strong {
    display: block;
    margin-top: 6px;
    font-size: 16px;
    line-height: 1.35;
}

.payment-option-list {
    display: grid;
    gap: 10px;
}

.payment-option {
    position: relative;
}

.payment-option-control {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.payment-option-frame {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    background: #ffffff;
    transition: border-color 0.18s, background-color 0.18s, box-shadow 0.18s;
}

.payment-option-card {
    display: grid;
    grid-template-columns: minmax(190px, 1.55fr) repeat(3, minmax(108px, 0.8fr)) 62px;
    gap: 12px;
    align-items: center;
    padding: 15px 14px;
    cursor: pointer;
}

.payment-option-frame:has(.payment-option-card:hover) {
    border-color: #9bbbad;
    background: #fbfdfc;
}

.payment-option-control:checked + .payment-option-frame {
    border-color: var(--primary);
    background: #f0f8f5;
    box-shadow: 0 0 0 1px var(--primary);
}

.payment-option-title {
    font-weight: 700;
    line-height: 1.35;
}

.payment-option-value small {
    display: block;
    margin-bottom: 4px;
    color: var(--muted);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
}

.payment-option-value strong {
    display: block;
    font-size: 15px;
}

.payment-option-value.balance strong {
    color: var(--primary-dark);
    font-size: 17px;
}

.payment-option-action {
    justify-self: end;
    padding: 6px 8px;
    border-radius: 6px;
    background: var(--surface-2);
    color: var(--muted);
    font-size: 12px;
    font-weight: 700;
}

.payment-option-control:checked + .payment-option-frame .payment-option-action {
    background: var(--primary);
    color: #ffffff;
}

.payment-option.unavailable .payment-option-frame {
    background: #f3f5f6;
    color: #71808c;
}

.payment-option.unavailable .payment-option-card {
    cursor: default;
}

.payment-details {
    border-top: 1px solid #d8e5df;
    background: rgba(243, 249, 247, 0.8);
}

.payment-details summary {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 11px 14px;
    color: var(--primary-dark);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    list-style: none;
}

.payment-details summary::-webkit-details-marker {
    display: none;
}

.payment-details summary::before {
    content: "+";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 5px;
    background: #e3f0eb;
    font-size: 17px;
    line-height: 1;
}

.payment-details[open] summary::before {
    content: "-";
}

.payment-detail-list {
    border-top: 1px solid #d8e5df;
    padding: 4px 14px 10px 42px;
}

.payment-detail-row {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    padding: 10px 0;
    font-size: 14px;
}

.payment-detail-row + .payment-detail-row {
    border-top: 1px solid #e4ece8;
}

.book-item-selector {
    display: flex;
    align-items: center;
    gap: 9px;
    flex: 1;
    cursor: pointer;
}

.book-item-selector input {
    flex: 0 0 auto;
    width: 17px;
    height: 17px;
    margin: 0;
    accent-color: var(--primary);
}

.book-item-selector input:disabled {
    opacity: 1;
}

.book-status {
    display: inline-flex;
    padding: 3px 7px;
    border-radius: 5px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
}

.book-status.required {
    background: #e3f0eb;
    color: var(--primary-dark);
}

.book-status.optional {
    background: #f1f3f5;
    color: var(--muted);
}

.online-payment-entry {
    display: none;
    grid-template-columns: minmax(190px, 0.8fr) minmax(260px, 1.2fr);
    gap: 16px;
    align-items: end;
    padding: 18px;
    border: 1px solid #cdded7;
    border-radius: var(--radius);
    background: linear-gradient(180deg, #f8fcfa 0%, #eef7f4 100%);
}

.pay-choice-form:has(.payment-option-control:checked) .online-payment-entry {
    display: grid;
}

.checkout-field {
    display: grid;
    gap: 6px;
    min-width: 0;
}

.checkout-field > span:first-child,
.donation-entry p,
.grand-total-entry span {
    letter-spacing: 0;
}

.amount-field {
    display: flex;
    align-items: center;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #ffffff;
}

.amount-field b {
    padding-left: 12px;
    color: var(--muted);
    font-size: 14px;
}

.amount-field input {
    border: 0;
    max-width: none;
    box-shadow: none;
}

.donation-entry,
.checkout-submit-row {
    grid-column: 1 / -1;
}

.donation-entry {
    padding: 16px;
    border: 1px solid #d6e5df;
    border-radius: var(--radius);
    background: #ffffff;
    box-shadow: 0 8px 18px rgba(17, 33, 46, 0.04);
}

.donation-entry p {
    margin: 0 0 14px;
    color: #20352f;
    font-size: 14px;
    font-weight: 800;
    line-height: 1.45;
}

.donation-options {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 9px;
}

.donation-option {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 42px;
    padding: 8px 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fbfdfe;
    color: var(--ink);
    font-size: 13px;
    font-weight: 800;
    text-align: center;
    transition: border-color 0.18s, background-color 0.18s, box-shadow 0.18s;
}

.donation-option:has(input:checked) {
    border-color: var(--primary);
    background: #eef8f4;
    color: var(--primary-dark);
    box-shadow: inset 0 0 0 1px var(--primary);
}

.donation-option input[type="radio"] {
    flex: 0 0 auto;
    width: 16px;
    height: 16px;
    margin: 0;
    accent-color: var(--primary);
}

.donation-option.custom {
    grid-column: span 2;
    justify-content: flex-start;
    flex-wrap: wrap;
}

.donation-option.custom .amount-field {
    width: 128px;
    min-height: 34px;
}

.donation-option.custom input[type="number"] {
    padding: 8px 8px 8px 4px;
}

.checkout-submit-row {
    display: grid;
    grid-template-columns: minmax(220px, 1fr) auto;
    gap: 12px;
    align-items: stretch;
}

.grand-total-entry {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    min-height: 54px;
    padding: 12px 16px;
    border-radius: var(--radius);
    background: #173f35;
    color: #ffffff;
}

.grand-total-entry span {
    font-size: 13px;
    font-weight: 800;
}

.grand-total-entry strong {
    font-size: 22px;
    letter-spacing: 0;
}

.online-payment-entry .form-actions {
    justify-content: flex-end;
    align-self: stretch;
}

.online-payment-entry .form-actions .button {
    min-height: 54px;
    padding-inline: 22px;
    font-size: 15px;
}

.public-status-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
}

.receipt-shell {
    width: min(860px, 100%);
    margin: 0 auto;
    padding: 24px;
}

.receipt-card {
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #ffffff;
    box-shadow: 0 10px 26px rgba(17, 33, 46, 0.06);
}

.receipt-head {
    display: flex;
    align-items: center;
    gap: 18px;
    margin-bottom: 22px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--line);
}

.receipt-logo {
    width: 92px;
    height: 108px;
    object-fit: contain;
}

.receipt-head h1 {
    margin: 0;
    font-size: 28px;
}

.receipt-head p {
    margin: 6px 0 0;
    color: var(--muted);
    line-height: 1.45;
}

.receipt-meta {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 18px;
}

.receipt-meta div {
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fbfdfe;
}

.receipt-meta span {
    display: block;
    color: var(--muted);
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
}

.receipt-meta strong {
    display: block;
    margin-top: 5px;
}

.receipt-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 18px;
}

.receipt-system-note {
    margin: 34px 0 0;
    padding-top: 18px;
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: 10px;
    font-style: italic;
    font-weight: 900;
    text-align: center;
}

.badge.successful {
    background: #dff3e8;
    color: var(--success);
}

.badge.failed,
.badge.cancelled {
    background: #f7dfe2;
    color: var(--danger);
}

@media (max-width: 980px) {
    .sidebar {
        position: static;
        width: auto;
    }

    nav {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .main {
        margin-left: 0;
        padding: 18px;
    }

    .stats-grid,
    .info-grid,
    .form-grid,
    .payer-grid,
    .student-identity,
    .online-payment-entry {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .payment-option-card {
        grid-template-columns: minmax(180px, 1.5fr) repeat(3, minmax(94px, 0.8fr)) 58px;
    }

    .donation-options {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .topbar,
    .toolbar {
        align-items: stretch;
        flex-direction: column;
    }

    .stats-grid,
    .info-grid,
    .form-grid,
    .payer-grid,
    .student-identity,
    .online-payment-entry,
    .public-pay-hero,
    .public-search,
    .receipt-meta,
    nav {
        grid-template-columns: 1fr;
    }

    .payment-option-card {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .donation-options {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .donation-option.custom,
    .checkout-submit-row {
        grid-column: 1 / -1;
    }

    .checkout-submit-row {
        grid-template-columns: 1fr;
    }

    .online-payment-entry .form-actions .button {
        width: 100%;
    }

    .payment-detail-list {
        padding-left: 14px;
    }

    .payment-option-title {
        grid-column: 1 / 3;
    }

    .payment-option-action {
        grid-column: 3;
        grid-row: 1;
    }

    .public-pay-shell,
    .receipt-shell {
        padding: 14px;
    }

    .public-pay-brand,
    .receipt-head,
    .receipt-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .public-pay-brand strong,
    .receipt-head h1 {
        font-size: 22px;
    }

    .public-pay-hero {
        padding: 24px 16px;
    }

    .public-pay-brand img {
        width: 104px;
        height: 124px;
    }

    .span-2 {
        grid-column: span 1;
    }

    th,
    td {
        padding: 10px;
    }
}

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

    .receipt-shell {
        width: 100%;
        padding: 0;
    }

    .receipt-card {
        border: 0;
        box-shadow: none;
    }

    .receipt-actions {
        display: none;
    }
}