:root {
    --bg: #f4f1ea;
    --panel: #fffdf8;
    --line: #d8cfbf;
    --line-strong: #b8ac97;
    --text: #1d1b17;
    --muted: #6f6556;
    --accent: #1e5a4f;
    --accent-2: #bd7b2f;
    --danger: #9f2d2d;
    --shadow: 0 12px 32px rgba(35, 27, 15, 0.08);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top left, rgba(189, 123, 47, 0.12), transparent 30%),
        linear-gradient(180deg, #f8f5ef 0%, var(--bg) 100%);
}

a {
    color: inherit;
}

.shell {
    width: min(100%, 1860px);
    margin: 0 auto;
    padding: 18px clamp(14px, 1.8vw, 26px) 26px;
}

.topbar,
.panel,
.auth-card,
.result-card,
.side-card,
.excel-panel,
.history-card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: var(--shadow);
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px;
    margin-bottom: 24px;
}

.topbar h1,
.panel h2,
.panel h3,
.auth-card h2 {
    margin: 4px 0 0;
}

.content {
    display: grid;
    gap: 24px;
}

.eyebrow {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--muted);
}

.muted {
    color: var(--muted);
}

.user-chip,
.status-pill {
    display: inline-flex;
    align-items: center;
    min-height: 36px;
    padding: 0 14px;
    border-radius: 999px;
    background: #efe8da;
    border: 1px solid var(--line);
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.topbar-nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.panel {
    padding: 20px clamp(14px, 1.4vw, 24px);
}

.panel-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.table-wrap {
    overflow-x: auto;
    padding-bottom: 4px;
}

.data-table,
.excel-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td,
.excel-table th,
.excel-table td {
    padding: 11px 8px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: middle;
}

.data-table th,
.excel-table th {
    font-size: 12px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--muted);
    background: #fbf7ef;
}

.data-table td {
    white-space: nowrap;
}

.excel-table {
    table-layout: fixed;
}

.excel-table th {
    font-size: 11px;
    line-height: 1.15;
    white-space: normal;
}

.excel-table td {
    min-width: 0;
}

.link-strong {
    color: var(--accent);
    text-decoration: none;
    font-weight: 700;
}

.cell-meta {
    font-size: 12px;
    color: var(--muted);
    margin-top: 3px;
}

.auth-card {
    width: min(460px, 100%);
    margin: 8vh auto 0;
    padding: 28px;
}

.auth-form {
    display: grid;
    gap: 16px;
    margin-top: 18px;
}

.auth-form label {
    display: grid;
    gap: 8px;
}

.auth-form input,
.excel-table input {
    width: 100%;
    border: 1px solid var(--line-strong);
    border-radius: 10px;
    padding: 8px 9px;
    font: inherit;
    font-size: 14px;
    color: var(--text);
    background: #fff;
}

.excel-table input[readonly] {
    background: #f6f1e8;
    color: var(--muted);
}

.primary-button,
.ghost-button {
    min-height: 42px;
    padding: 0 18px;
    border-radius: 12px;
    border: 1px solid transparent;
    cursor: pointer;
    font: inherit;
}

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

.ghost-button {
    background: #f2ece1;
    border-color: var(--line);
    color: var(--text);
}

.ghost-button.is-current {
    background: #e6f0ed;
    border-color: #9bbdb4;
    color: var(--accent);
}

.request-grid {
    display: grid;
    grid-template-columns: minmax(240px, 280px) minmax(0, 1fr);
    gap: 16px;
}

.estimator-sheet {
    display: grid;
    gap: 12px;
}

.estimator-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
    box-shadow: var(--shadow);
}

.estimator-header h2 {
    margin: 4px 0;
}

.estimator-actions,
.toolbar-actions {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.estimator-context {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 1px;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--line);
}

.estimator-context > div {
    display: grid;
    gap: 3px;
    min-width: 0;
    padding: 9px 10px;
    background: #fff;
}

.estimator-context span,
.estimator-totals span,
.estimator-totals small {
    color: var(--muted);
    font-size: 12px;
}

.estimator-context strong {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 14px;
}

.manager-source {
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fffdf8;
}

.manager-source summary {
    cursor: pointer;
    font-weight: 700;
}

.manager-source-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(130px, 1fr));
    gap: 10px;
    margin: 12px 0;
}

.manager-source-grid label {
    display: grid;
    gap: 4px;
    color: var(--muted);
    font-size: 12px;
}

.manager-source-grid input {
    width: 100%;
    border: 1px solid var(--line-strong);
    border-radius: 6px;
    padding: 6px 7px;
    font: inherit;
    font-size: 13px;
    color: var(--text);
    background: #fff;
}

.estimator-table-panel {
    border-radius: 8px;
}

.estimator-table-panel .excel-toolbar {
    padding: 10px 12px;
}

.estimator-table th,
.estimator-table td {
    padding: 6px 7px;
    border: 1px solid var(--line);
    font-size: 13px;
}

.estimator-table thead th {
    position: sticky;
    top: 0;
    z-index: 1;
    background: #f0eadf;
}

.estimator-table tbody th {
    background: #f8f4eb;
    text-align: left;
}

.estimator-table .pile-type-cell {
    min-width: 86px;
    vertical-align: middle;
    border-top-width: 2px;
    border-top-color: var(--line-strong);
}

.estimator-table .line-kind-cell {
    min-width: 82px;
    color: var(--muted);
    font-weight: 700;
}

.estimator-table .pile-line-group-start td,
.estimator-table .pile-line-group-start th {
    border-top-width: 2px;
    border-top-color: var(--line-strong);
}

.estimator-table input {
    border-radius: 4px;
    padding: 5px 6px;
    font-size: 13px;
}

.estimator-table input:not([readonly]) {
    background: #fff;
    border-color: #8faea6;
}

.estimator-table .readonly-row input {
    background: #f6f1e8;
    color: var(--muted);
}

.estimator-table .manager-estimate-row th,
.estimator-table .manager-estimate-row td {
    background: #e7f1ed;
    font-weight: 700;
}

.estimator-table .estimator-summary-row th,
.estimator-table .estimator-summary-row td {
    background: #fffdf8;
    font-weight: 700;
}

.estimator-table .extra-cost-row th,
.estimator-table .extra-cost-row td {
    background: #f8f4eb;
}

.estimator-totals {
    position: sticky;
    bottom: 0;
    z-index: 2;
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 1px;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--line);
    box-shadow: 0 -10px 24px rgba(35, 27, 15, 0.08);
}

.estimator-totals article {
    display: grid;
    gap: 4px;
    min-width: 0;
    padding: 10px 12px;
    background: #fff;
}

.estimator-totals strong {
    font-size: 18px;
    white-space: nowrap;
}

.estimator-totals small {
    display: block;
}

.estimator-totals .is-low {
    background: #fff3f0;
}

.estimator-totals .is-ok {
    background: #f0f8f5;
}

.side-card {
    padding: 18px;
    align-self: start;
    position: sticky;
    top: 18px;
}

.knowledge-card,
.auto-summary-card,
.action-card,
.manager-inputs-card {
    margin-top: 16px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: #f8f4eb;
}

.action-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 16px;
}

.auto-summary-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px 16px;
    margin-top: 10px;
    font-size: 14px;
}

.manager-inputs-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 220px));
    gap: 14px 16px;
    margin-top: 12px;
}

.manager-inputs-grid label,
.pile-quantity-cell {
    display: grid;
    gap: 6px;
    font-size: 13px;
    color: var(--muted);
}

.manager-inputs-grid input,
.pile-quantity-cell input {
    width: 100%;
    border: 1px solid var(--line-strong);
    border-radius: 10px;
    padding: 8px 9px;
    font: inherit;
    font-size: 14px;
    color: var(--text);
    background: #fff;
}

.pile-quantities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
    gap: 12px;
    margin-top: 16px;
}

.pile-quantity-cell {
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: #fffdf8;
}

.summary-toolbar {
    margin-top: 18px;
}

.notice-panel {
    padding: 14px 18px;
    color: var(--accent);
    font-weight: 600;
}

.reference-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
}

.table-input-cell {
    min-width: 180px;
}

.table-input-cell--compact {
    min-width: 110px;
    width: 110px;
}

.table-input-cell input {
    width: 100%;
    border: 1px solid var(--line-strong);
    border-radius: 10px;
    padding: 8px 9px;
    font: inherit;
    font-size: 14px;
    color: var(--text);
    background: #fff;
}

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

.rule-card-grid,
.reference-card-grid {
    display: grid;
    gap: 16px;
}

.rule-card-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.reference-card-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.rule-card,
.reference-card {
    display: grid;
    gap: 10px;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: #fbf7ef;
}

.rule-card__label,
.reference-card__title {
    font-size: 13px;
    font-weight: 700;
    color: var(--text);
}

.rule-group + .rule-group {
    margin-top: 24px;
}

.rule-group__header {
    margin-bottom: 14px;
}

.rule-group__header h4 {
    margin: 0 0 4px;
}

.rule-card__description {
    font-size: 12px;
    color: var(--muted);
    min-height: 32px;
}

.rule-card input,
.reference-card input {
    width: 100%;
    border: 1px solid var(--line-strong);
    border-radius: 10px;
    padding: 8px 9px;
    font: inherit;
    font-size: 14px;
    color: var(--text);
    background: #fff;
}

.rule-card input[readonly],
.reference-card input[readonly] {
    background: #f6f1e8;
    color: var(--muted);
}

.reference-card__grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 12px;
}

.reference-card__grid label {
    display: grid;
    gap: 6px;
}

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

.margin-flag {
    margin-top: 12px;
    padding: 10px 12px;
    border-radius: 12px;
    font-size: 13px;
    font-weight: 700;
}

.margin-ok {
    background: #e5f4ef;
    color: var(--accent);
    border: 1px solid #b7d7cd;
}

.margin-low {
    background: #fde8e8;
    color: var(--danger);
    border: 1px solid #e7b4b4;
}

.compact {
    gap: 10px;
}

.meta-list {
    display: grid;
    gap: 14px;
    margin: 18px 0 0;
}

.meta-list dt {
    font-size: 12px;
    color: var(--muted);
    margin-bottom: 4px;
}

.meta-list dd {
    margin: 0;
    font-weight: 600;
}

.excel-panel {
    padding: 16px;
}

.excel-toolbar {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 16px;
}

.toolbar-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

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

.result-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-top: 18px;
}

.result-card {
    padding: 18px;
}

.result-card.secondary {
    background: linear-gradient(180deg, #f8f0e4 0%, #fffdf8 100%);
}

.result-figure {
    font-size: 28px;
    font-weight: 800;
    margin: 8px 0 6px;
}

.result-breakdown {
    display: grid;
    gap: 6px;
    margin-top: 12px;
    font-size: 14px;
}

.back-link {
    text-decoration: none;
    color: var(--accent);
}

.request-meta {
    text-align: right;
    display: grid;
    gap: 6px;
}

.history-list {
    display: grid;
    gap: 12px;
}

.history-card {
    padding: 16px 18px;
}

.history-card-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 10px;
}

.history-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 8px 14px;
    font-size: 14px;
}

.history-auto-line {
    margin-top: 10px;
    font-size: 13px;
    color: var(--muted);
}

.alert {
    margin-top: 16px;
    padding: 14px 16px;
    border-radius: 12px;
    border: 1px solid transparent;
}

.alert-error {
    background: #fde8e8;
    border-color: #e7b4b4;
    color: var(--danger);
}

.alert-success {
    background: #e5f4ef;
    border-color: #b7d7cd;
    color: var(--accent);
}

.hidden {
    display: none;
}

@media (max-width: 1100px) {
    .estimator-header {
        display: grid;
    }

    .estimator-context,
    .estimator-totals {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

    .request-grid {
        grid-template-columns: 1fr;
    }

    .reference-grid {
        grid-template-columns: 1fr;
    }

    .side-card {
        position: static;
    }

    .result-grid,
    .history-grid,
    .auto-summary-grid,
    .action-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 720px) {
    .shell {
        padding: 16px;
    }

    .topbar,
    .panel,
    .auth-card {
        padding: 18px;
    }

    .topbar,
    .panel-heading,
    .excel-toolbar,
    .history-card-head {
        flex-direction: column;
    }

    .result-grid,
    .history-grid,
    .auto-summary-grid,
    .action-grid,
    .estimator-context,
    .estimator-totals,
    .manager-source-grid {
        grid-template-columns: 1fr;
    }

    .request-meta {
        text-align: left;
    }

    .reference-card__grid {
        grid-template-columns: 1fr;
    }
}