/* ===========================
   Casting Optimizer - Main CSS
   =========================== */

:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-overload: #dc2626;
    --color-overload-bg: #fef2f2;
    --color-normal: #16a34a;
    --color-normal-bg: #f0fdf4;
    --color-underload: #ca8a04;
    --color-underload-bg: #fefce8;
    --color-bg: #f8fafc;
    --color-surface: #ffffff;
    --color-border: #e2e8f0;
    --color-text: #1e293b;
    --color-text-secondary: #64748b;
    --color-text-muted: #94a3b8;
    --radius: 8px;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: "Segoe UI", "Hiragino Sans", "Meiryo", sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
}

/* --- Navbar --- */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 0 24px;
    height: 56px;
    box-shadow: var(--shadow-sm);
}

.navbar-brand a {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-primary);
    text-decoration: none;
}

.navbar-menu {
    list-style: none;
    display: flex;
    gap: 8px;
}

.navbar-menu a {
    display: block;
    padding: 8px 16px;
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    transition: background 0.15s, color 0.15s;
}

.navbar-menu a:hover {
    background: var(--color-bg);
    color: var(--color-text);
}

.navbar-menu a.active {
    background: var(--color-primary);
    color: #fff;
}

/* --- Container --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: none;
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s;
}

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

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

.btn-primary:disabled {
    background: var(--color-text-muted);
    cursor: not-allowed;
}

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-bg);
}

/* --- Dashboard Header --- */
.dashboard-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 20px;
}

.dashboard-header h1 {
    font-size: 1.5rem;
}

.dashboard-controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

.dashboard-controls select {
    padding: 6px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 0.875rem;
    background: var(--color-surface);
}

/* --- Legend --- */
.legend {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.legend-color {
    display: inline-block;
    width: 14px;
    height: 14px;
    border-radius: 3px;
}

.legend-overload { background: var(--color-overload); }
.legend-normal   { background: var(--color-normal); }
.legend-underload { background: var(--color-underload); }

/* --- Summary Cards --- */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow-sm);
}

.card-label {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    margin-bottom: 4px;
}

.card-value {
    font-size: 2rem;
    font-weight: 700;
}

.card-overload { border-left: 4px solid var(--color-overload); }
.card-overload .card-value { color: var(--color-overload); }

.card-normal { border-left: 4px solid var(--color-normal); }
.card-normal .card-value { color: var(--color-normal); }

.card-underload { border-left: 4px solid var(--color-underload); }
.card-underload .card-value { color: var(--color-underload); }

.card-total { border-left: 4px solid var(--color-primary); }
.card-total .card-value { color: var(--color-primary); }

/* --- Chart --- */
.chart-section,
.table-section {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.chart-section h2,
.table-section h2 {
    font-size: 1.1rem;
    margin-bottom: 16px;
}

.chart-container {
    position: relative;
    width: 100%;
    min-height: 400px;
}

.chart-container canvas {
    width: 100% !important;
}

/* --- Data Table --- */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.data-table th {
    text-align: left;
    padding: 10px 12px;
    border-bottom: 2px solid var(--color-border);
    color: var(--color-text-secondary);
    font-weight: 600;
}

.data-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--color-border);
}

.data-table tbody tr:hover {
    background: var(--color-bg);
}

/* Status badges */
.status-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-overload {
    background: var(--color-overload-bg);
    color: var(--color-overload);
}

.status-normal {
    background: var(--color-normal-bg);
    color: var(--color-normal);
}

.status-underload {
    background: var(--color-underload-bg);
    color: var(--color-underload);
}

/* --- Upload --- */
.upload-header {
    margin-bottom: 24px;
}

.upload-header h1 {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.upload-header p {
    color: var(--color-text-secondary);
}

.upload-section {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.upload-dropzone {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius);
    padding: 48px 24px;
    text-align: center;
    transition: border-color 0.2s, background 0.2s;
}

.upload-dropzone.dragover {
    border-color: var(--color-primary);
    background: #eff6ff;
}

.dropzone-icon {
    font-size: 2.5rem;
    margin-bottom: 8px;
}

.dropzone-sub {
    color: var(--color-text-muted);
    font-size: 0.85rem;
    margin: 8px 0;
}

.upload-btn {
    cursor: pointer;
}

.selected-file {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 12px;
    font-size: 0.9rem;
    color: var(--color-primary);
}

.btn-clear {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    color: var(--color-text-muted);
}

.btn-clear:hover {
    color: var(--color-overload);
}

.upload-actions {
    margin-top: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.spinner {
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

/* Upload result */
.upload-result {
    margin-top: 16px;
}

.upload-result .result-success {
    background: var(--color-normal-bg);
    color: var(--color-normal);
    padding: 12px 16px;
    border-radius: var(--radius);
    border: 1px solid var(--color-normal);
}

.upload-result .result-error {
    background: var(--color-overload-bg);
    color: var(--color-overload);
    padding: 12px 16px;
    border-radius: var(--radius);
    border: 1px solid var(--color-overload);
}

/* History section */
.history-section {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.history-section h2 {
    font-size: 1.1rem;
    margin-bottom: 16px;
}

/* --- Import History Page --- */
.history-page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 20px;
}

.history-page-header h1 {
    font-size: 1.5rem;
}

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

.row-has-error {
    background: var(--color-overload-bg);
}

.btn-toggle {
    background: none;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    cursor: pointer;
    padding: 2px 6px;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    transition: background 0.15s;
}

.btn-toggle:hover {
    background: var(--color-bg);
}

.error-detail-row td {
    padding: 0 12px 12px 12px;
    background: #fff8f8;
}

.error-detail-content {
    padding: 12px;
}

.error-detail-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
}

.error-detail-table th {
    text-align: left;
    padding: 6px 8px;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    font-weight: 600;
}

.error-detail-table td {
    padding: 6px 8px;
    border-bottom: 1px solid var(--color-border);
}

.text-success {
    color: var(--color-normal);
}

.text-error {
    color: var(--color-overload);
    font-weight: 600;
}

.btn-sm {
    padding: 4px 10px;
    font-size: 0.8rem;
}

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 16px;
}

.pagination-info {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

/* --- Timeline --- */
.timeline-section {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.timeline-section h2 {
    font-size: 1.1rem;
    margin-bottom: 16px;
}

.timeline-table-wrapper {
    overflow-x: auto;
}

.timeline-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
    min-width: 700px;
}

.timeline-table th {
    text-align: center;
    padding: 8px 12px;
    border-bottom: 2px solid var(--color-border);
    color: var(--color-text-secondary);
    font-weight: 600;
    white-space: nowrap;
}

.timeline-table th:first-child {
    text-align: left;
    min-width: 160px;
}

.timeline-table td {
    padding: 8px 12px;
    border-bottom: 1px solid var(--color-border);
    text-align: center;
}

.timeline-table td:first-child {
    text-align: left;
}

.timeline-table tbody tr:hover {
    background: var(--color-bg);
}

.timeline-cell {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 60px;
    padding: 4px 8px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.8rem;
    cursor: pointer;
    transition: opacity 0.15s;
    border: 1px solid transparent;
}

.timeline-cell:hover {
    opacity: 0.75;
}

.timeline-cell.overload {
    background: var(--color-overload-bg);
    color: var(--color-overload);
    border-color: var(--color-overload);
}

.timeline-cell.normal {
    background: var(--color-normal-bg);
    color: var(--color-normal);
    border-color: var(--color-normal);
}

.timeline-cell.underload {
    background: var(--color-underload-bg);
    color: var(--color-underload);
    border-color: var(--color-underload);
}

.timeline-cell.empty {
    color: var(--color-text-muted);
    background: none;
    border-color: var(--color-border);
    cursor: default;
}

/* --- Popup --- */
.popup-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 100;
}

.assignment-popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    z-index: 101;
    min-width: 320px;
    max-width: 500px;
    width: 90vw;
    max-height: 80vh;
    overflow-y: auto;
}

.popup-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border);
    font-weight: 600;
    position: sticky;
    top: 0;
    background: var(--color-surface);
}

.popup-close {
    background: none;
    border: none;
    font-size: 1.4rem;
    cursor: pointer;
    color: var(--color-text-muted);
    line-height: 1;
}

.popup-close:hover {
    color: var(--color-text);
}

.popup-content {
    padding: 16px 20px;
}

.popup-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.popup-table th {
    text-align: left;
    padding: 8px;
    border-bottom: 2px solid var(--color-border);
    color: var(--color-text-secondary);
    font-weight: 600;
}

.popup-table td {
    padding: 8px;
    border-bottom: 1px solid var(--color-border);
}

.popup-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0 0 0;
    font-size: 0.9rem;
}

/* --- Footer --- */
.footer {
    text-align: center;
    padding: 24px;
    color: var(--color-text-muted);
    font-size: 0.8rem;
}

/* --- Utility --- */
.text-muted {
    color: var(--color-text-muted);
}

/* htmx indicator */
.htmx-indicator {
    display: none;
}

.htmx-request .htmx-indicator {
    display: inline;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .navbar {
        padding: 0 16px;
    }

    .container {
        padding: 16px;
    }

    .dashboard-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .summary-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .data-table {
        font-size: 0.8rem;
    }

    .data-table th,
    .data-table td {
        padding: 8px;
    }
}