:root {
    --bg: #f5f7fa;
    --surface: #ffffff;
    --surface-muted: #eef3f6;
    --line: #d9e1e7;
    --text: #17202a;
    --muted: #647282;
    --accent: #0f766e;
    --accent-dark: #115e59;
    --blue: #1d4ed8;
    --warning: #b7791f;
    --danger: #b42318;
    --shadow: 0 12px 28px rgba(20, 31, 44, 0.08);
    --radius: 8px;
}

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
    background: var(--bg);
}

body {
    min-height: 100%;
    margin: 0;
    color: var(--text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-size: 15px;
    line-height: 1.5;
}

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

button,
input,
select,
textarea {
    font: inherit;
}

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

.auth-shell {
    width: min(100%, 460px);
}

.auth-panel,
.panel,
.metric-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.auth-panel {
    padding: 28px;
}

.brand-line {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 28px;
}

.brand-link {
    margin-bottom: 22px;
}

.brand-mark {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border-radius: var(--radius);
    background: var(--accent);
    color: #ffffff;
    font-weight: 800;
}

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

.brand-line span {
    color: var(--muted);
    font-size: 12px;
}

.auth-panel h1,
.page-head h1 {
    margin: 0 0 8px;
    font-size: clamp(28px, 4vw, 38px);
    line-height: 1.1;
}

.auth-panel p,
.page-head p,
.muted {
    color: var(--muted);
    margin: 0 0 22px;
}

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

.form-stack label {
    display: grid;
    gap: 7px;
    color: #2f3b48;
    font-size: 13px;
    font-weight: 700;
}

input,
select,
textarea {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #ffffff;
    color: var(--text);
    padding: 10px 12px;
    min-height: 42px;
}

input:focus,
select:focus,
textarea:focus,
button:focus-visible,
a:focus-visible {
    outline: 3px solid rgba(15, 118, 110, 0.22);
    outline-offset: 2px;
}

.btn,
.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid transparent;
    border-radius: var(--radius);
    min-height: 40px;
    padding: 0 14px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 750;
}

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

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

button:disabled,
.btn:disabled {
    cursor: not-allowed;
    opacity: 0.55;
}

.btn.primary:disabled:hover {
    background: var(--accent);
}

.btn.secondary {
    background: #ffffff;
    color: var(--text);
    border-color: var(--line);
}

.btn.full {
    width: 100%;
}

.btn.small {
    min-height: 34px;
    padding: 0 10px;
    font-size: 13px;
}

.icon-btn {
    width: 40px;
    padding: 0;
    background: #ffffff;
    border-color: var(--line);
    color: var(--muted);
}

.notice {
    margin: 0 0 16px;
    padding: 12px 14px;
    border-radius: var(--radius);
    border: 1px solid var(--line);
    background: #f8fafc;
}

.notice-error {
    color: var(--danger);
    border-color: #fecdca;
    background: #fff5f5;
}

.notice-success {
    color: var(--accent-dark);
    border-color: #a7f3d0;
    background: #ecfdf5;
}

.app-shell {
    display: grid;
    min-height: 100vh;
    grid-template-columns: 248px minmax(0, 1fr);
}

.sidebar {
    display: flex;
    flex-direction: column;
    min-width: 0;
    border-right: 1px solid var(--line);
    background: #ffffff;
    padding: 22px 16px;
}

.side-nav {
    display: grid;
    gap: 5px;
}

.side-nav a {
    border-radius: var(--radius);
    color: #3c4856;
    padding: 10px 12px;
    font-weight: 700;
}

.side-nav a:hover,
.side-nav a.active {
    background: var(--surface-muted);
    color: var(--accent-dark);
}

.sidebar-foot {
    margin-top: auto;
    border-top: 1px solid var(--line);
    padding-top: 16px;
    min-width: 0;
}

.sidebar-foot span,
.sidebar-foot small {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-foot small {
    color: var(--muted);
    text-transform: uppercase;
}

.main-shell {
    min-width: 0;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.94);
    padding: 15px 26px;
}

.topbar-label {
    display: block;
    color: var(--muted);
    font-size: 12px;
}

.topbar-actions,
.inline-form {
    display: flex;
    align-items: center;
    gap: 10px;
}

.content {
    width: min(100%, 1440px);
    margin: 0 auto;
    padding: 28px;
}

.page-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 22px;
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(150px, 1fr));
    gap: 14px;
    margin-bottom: 18px;
}

.metric-grid.compact {
    grid-template-columns: repeat(4, minmax(120px, 1fr));
}

.metric-card {
    padding: 17px 18px;
    box-shadow: none;
}

.metric-card span {
    display: block;
    color: var(--muted);
    font-size: 13px;
    font-weight: 700;
}

.metric-card strong {
    display: block;
    margin-top: 8px;
    font-size: 34px;
    line-height: 1;
}

.metric-card .metric-date {
    font-size: 20px;
    line-height: 1.15;
}

.metric-card.warning strong {
    color: var(--warning);
}

.metric-card.danger strong {
    color: var(--danger);
}

.dashboard-grid,
.detail-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(320px, 0.8fr);
    gap: 18px;
}

.panel {
    min-width: 0;
    padding: 18px;
    box-shadow: none;
}

.panel.wide {
    grid-column: span 1;
}

.panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

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

.panel-head a {
    color: var(--accent-dark);
    font-size: 13px;
    font-weight: 800;
}

.table-wrap {
    width: 100%;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 680px;
}

th,
td {
    border-bottom: 1px solid var(--line);
    padding: 12px 10px;
    text-align: left;
    vertical-align: middle;
}

th {
    color: var(--muted);
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
}

td {
    color: #273341;
}

td a {
    color: var(--blue);
    font-weight: 750;
}

.status {
    display: inline-flex;
    align-items: center;
    min-height: 26px;
    border-radius: var(--radius);
    background: var(--surface-muted);
    color: #334155;
    padding: 2px 8px;
    font-size: 12px;
    font-weight: 800;
}

.empty {
    color: var(--muted);
    margin: 0;
}

.list {
    display: grid;
    gap: 9px;
}

.list-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 11px 12px;
}

.list-row strong,
.list-row span {
    min-width: 0;
    overflow-wrap: anywhere;
}

.list-row span {
    color: var(--muted);
    font-size: 13px;
}

.filter-bar {
    display: grid;
    grid-template-columns: minmax(220px, 1.3fr) minmax(160px, 0.7fr) minmax(180px, 0.7fr) auto;
    gap: 10px;
    margin-bottom: 16px;
}

.detail-grid {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 360px);
}

.ocr-box {
    white-space: pre-wrap;
    min-height: 320px;
    margin: 0;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #f8fafc;
    color: #26313d;
    padding: 14px;
    overflow-wrap: anywhere;
}

.meta-list {
    display: grid;
    grid-template-columns: 120px minmax(0, 1fr);
    gap: 10px 12px;
    margin: 12px 0 0;
}

.meta-list dt {
    color: var(--muted);
    font-weight: 800;
}

.meta-list dd {
    margin: 0;
    overflow-wrap: anywhere;
}

.upload-zone {
    display: grid;
    place-items: center;
    gap: 7px;
    min-height: 150px;
    margin-bottom: 18px;
    border: 1px dashed #9fb2c1;
    border-radius: var(--radius);
    background: #ffffff;
    color: var(--muted);
    text-align: center;
    padding: 20px;
}

.upload-zone strong {
    color: var(--text);
    font-size: 20px;
}

.review-row {
    align-items: flex-start;
}

.action-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.head-actions {
    margin-top: 0;
}

.inline-review {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.single-action {
    margin-top: 10px;
}

.ocr-history {
    display: grid;
    gap: 8px;
    margin-top: 12px;
}

.ocr-history-row {
    display: grid;
    gap: 2px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 9px 10px;
}

.ocr-history-row span {
    color: var(--muted);
    font-size: 13px;
}

.edit-panel {
    margin-top: 18px;
}

.edit-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(220px, 1fr));
    gap: 14px;
}

.edit-grid label {
    display: grid;
    gap: 7px;
    color: #2f3b48;
    font-size: 13px;
    font-weight: 800;
}

.edit-grid .checkbox-field {
    display: flex;
    align-items: center;
    gap: 10px;
    min-height: 42px;
    padding-top: 21px;
}

.checkbox-field input {
    width: 18px;
    height: 18px;
    min-height: 18px;
    padding: 0;
}

.wide-field {
    grid-column: 1 / -1;
}

textarea {
    min-height: 118px;
    resize: vertical;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
}

.review-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
}

.proposal-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(180px, 1fr));
    gap: 10px;
    margin-top: 12px;
}

.proposal-grid.compact-proposal {
    grid-template-columns: repeat(2, minmax(160px, 1fr));
}

.proposal-field {
    min-width: 0;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #f8fafc;
    padding: 9px 10px;
}

.proposal-field span {
    display: block;
    color: var(--muted);
    font-size: 12px;
    font-weight: 800;
    overflow-wrap: anywhere;
}

.proposal-field strong {
    display: block;
    margin-top: 3px;
    color: var(--text);
    font-size: 14px;
    overflow-wrap: anywhere;
}

.proposal-warnings {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-top: 10px;
}

.proposal-warnings span {
    border-radius: var(--radius);
    background: #fff7ed;
    color: var(--warning);
    padding: 4px 8px;
    font-size: 12px;
    font-weight: 800;
}

.linked-list {
    display: grid;
    gap: 8px;
    margin-top: 14px;
}

.linked-item {
    display: grid;
    gap: 2px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #f8fafc;
    padding: 9px 10px;
}

.linked-item strong,
.linked-item span {
    overflow-wrap: anywhere;
}

.linked-item span {
    color: var(--muted);
    font-size: 13px;
}

.separator-sheet {
    display: grid;
    min-height: calc(100vh - 160px);
    place-items: center;
    align-content: center;
    gap: 24px;
    border: 2px solid var(--text);
    background: #ffffff;
    text-align: center;
    padding: 48px;
}

.separator-sheet h1 {
    margin: 0;
    font-size: 64px;
    letter-spacing: 0;
}

.separator-sheet p {
    margin: 0;
    color: var(--text);
    font-size: 24px;
    font-weight: 800;
}

.separator-mark {
    display: grid;
    width: 190px;
    height: 190px;
    place-items: center;
    border: 8px solid var(--text);
    padding: 14px;
}

.separator-mark strong,
.separator-mark span,
.separator-code {
    overflow-wrap: anywhere;
}

.separator-mark strong {
    font-size: 22px;
}

.separator-mark span {
    font-size: 12px;
}

.separator-code {
    font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
    font-size: 18px;
    font-weight: 800;
}

@media print {
    .sidebar,
    .topbar,
    .page-head {
        display: none;
    }

    .app-shell {
        display: block;
    }

    .content {
        width: 100%;
        max-width: none;
        padding: 0;
    }

    .separator-sheet {
        min-height: 100vh;
        border: 0;
        box-shadow: none;
        page-break-after: always;
    }
}

@media (max-width: 980px) {
    .app-shell {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: sticky;
        top: 0;
        z-index: 20;
        border-right: 0;
        border-bottom: 1px solid var(--line);
    }

    .brand-link {
        margin-bottom: 12px;
    }

    .side-nav {
        display: flex;
        overflow-x: auto;
        padding-bottom: 4px;
    }

    .side-nav a {
        white-space: nowrap;
    }

    .sidebar-foot {
        display: none;
    }

    .metric-grid,
    .metric-grid.compact,
    .dashboard-grid,
    .detail-grid,
    .proposal-grid,
    .proposal-grid.compact-proposal,
    .edit-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 680px) {
    .topbar {
        align-items: flex-start;
        flex-direction: column;
        padding: 14px 18px;
    }

    .topbar-actions {
        width: 100%;
        flex-wrap: wrap;
    }

    .content {
        padding: 20px 14px;
    }

    .filter-bar {
        grid-template-columns: 1fr;
    }

    .inline-form {
        align-items: stretch;
        flex-direction: column;
    }
}