/*
 * Main stylesheet -- layout, components, typography.
 * Matches Radicle Explorer design language.
 */

/* ── Reset & Base ─────────────────────────────────── */

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

html {
    height: 100%;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -webkit-text-size-adjust: 100%;
}

body {
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
                 Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: 0.875rem;
    line-height: 1.25;
    color: var(--color-text-primary);
    background-color: var(--color-surface-base);
    scrollbar-width: thin;
    scrollbar-color: var(--color-border-subtle) transparent;
    overscroll-behavior: none;
}

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

a:hover {
    color: var(--color-text-brand);
}

code, .monospace {
    font-family: 'JetBrains Mono', monospace;
}

/* ── Scrollbars (Webkit) ──────────────────────────── */

*::-webkit-scrollbar {
    width: 0.5rem;
    height: 0.5rem;
}
*::-webkit-scrollbar-track {
    background: transparent;
}
*::-webkit-scrollbar-thumb {
    background: transparent;
    border-radius: var(--border-radius-lg);
}
*:hover::-webkit-scrollbar-thumb,
body::-webkit-scrollbar-thumb {
    background-color: var(--color-border-subtle);
}

/* ── Global Header ────────────────────────────────── */

.global-header {
    display: flex;
    align-items: center;
    height: 3.5rem;
    padding: 0 1.5rem;
    background-color: var(--color-surface-canvas);
    border-bottom: 1px solid var(--color-border-subtle);
    gap: 1rem;
}

.global-header .logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    white-space: nowrap;
}

.global-header .logo svg {
    width: 1.5rem;
    height: 1.5rem;
    fill: var(--color-text-brand);
}

.global-header .node-id {
    margin-left: auto;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
}

/* ── Page Content ─────────────────────────────────── */

.page-content {
    min-height: calc(100vh - 3.5rem);
}

/* ── Repo Card Grid ───────────────────────────────── */

.repo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(32rem, 1fr));
    gap: 0;
}

.repo-card {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--color-border-subtle);
    border-right: 1px solid var(--color-border-subtle);
    transition: background-color 0.15s;
}

.repo-card:hover {
    background-color: var(--color-surface-subtle);
}

.repo-card .repo-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.repo-card .repo-rid {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
}

.repo-card .repo-description {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.4;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.repo-card .repo-stats {
    display: flex;
    gap: 1rem;
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
}

.repo-card .repo-stats .stat {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.repo-card .visibility-badge {
    display: inline-block;
    font-size: 0.6875rem;
    padding: 0.0625rem 0.375rem;
    border-radius: var(--border-radius-sm);
    background-color: var(--color-surface-mid);
    color: var(--color-text-tertiary);
}

/* ── Repo Footer ──────────────────────────────────── */

.repo-footer {
    padding: 1rem 1.5rem;
    font-size: 0.875rem;
    color: var(--color-text-tertiary);
}

/* ── Repo Detail Header ──────────────────────────── */

.repo-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--color-border-subtle);
}

.repo-header .back-link {
    display: flex;
    align-items: center;
    color: var(--color-text-tertiary);
    font-size: 1.25rem;
}

.repo-header .back-link:hover {
    color: var(--color-text-brand);
}

.repo-header .repo-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.repo-header .repo-rid {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    margin-left: auto;
}

/* ── Tab Bar ──────────────────────────────────────── */

.tab-bar {
    display: flex;
    background-color: var(--color-surface-canvas);
    border-bottom: 1px solid var(--color-border-subtle);
    padding: 0 1rem;
    overflow-x: auto;
}

.tab-button {
    padding: 0.75rem 1rem;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--color-text-tertiary);
    transition: color 0.15s, border-color 0.15s;
    white-space: nowrap;
}

.tab-button:hover {
    color: var(--color-text-secondary);
    background-color: var(--color-surface-alpha-subtle);
}

.tab-button.active {
    color: var(--color-text-brand);
    border-bottom-color: var(--color-text-brand);
    font-weight: 600;
}

/* ── Tab Content ──────────────────────────────────── */

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.tab-panel {
    padding: 1.5rem;
}

/* ── Loading State ────────────────────────────────── */

.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 24rem;
    color: var(--color-text-tertiary);
    font-size: 0.875rem;
}

.loading .spinner {
    display: inline-block;
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid var(--color-border-mid);
    border-top-color: var(--color-text-brand);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-right: 0.75rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ── Error State ──────────────────────────────────── */

.error-message {
    padding: 1rem 1.5rem;
    margin: 1.5rem;
    background-color: var(--color-feedback-error-bg);
    border: 1px solid var(--color-feedback-error-text);
    border-radius: var(--border-radius-md);
    color: var(--color-feedback-error-text);
    font-size: 0.875rem;
}

/* ── Empty State ──────────────────────────────────── */

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 24rem;
    color: var(--color-text-quaternary);
    font-size: 0.875rem;
    gap: 0.5rem;
}

/* ── Graph Container ──────────────────────────────── */

#graph-container {
    width: 100%;
    height: calc(100vh - 10rem);
    min-height: 30rem;
}

#graph-container svg {
    width: 100%;
    height: 100%;
}

/* ── D3 Graph Styles ──────────────────────────────── */

.node circle {
    stroke-width: 1.5px;
}

.node text {
    font-size: 0.6875rem;
    fill: var(--color-text-primary);
    pointer-events: none;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8);
}

.link {
    stroke: var(--color-border-strong);
    stroke-opacity: 0.5;
}

.link:hover {
    stroke-opacity: 0.8;
}

/* Node type colors */
.node-issue circle { fill: #ff5c5c; stroke: #cc3e3f; }
.node-patch circle { fill: #4d94ff; stroke: #1c77ff; }
.node-plan circle { fill: #73e926; stroke: #58e600; }
.node-context circle { fill: #33dbde; stroke: #00a8ae; }
.node-commit circle { fill: #b8babc; stroke: #8f9296; }
.node-file circle { fill: #8a74fa; stroke: #6c54c2; }
.node-task circle { fill: #ffc53d; stroke: #d48806; }

/* ── Graph Legend & Controls ──────────────────────── */

.graph-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1.5rem;
    border-bottom: 1px solid var(--color-border-subtle);
    flex-wrap: wrap;
}

.graph-legend {
    display: flex;
    gap: 0.75rem;
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    cursor: pointer;
}

.legend-item.disabled {
    opacity: 0.3;
}

.legend-dot {
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 50%;
}

.graph-search {
    margin-left: auto;
}

.graph-search input {
    background: var(--color-surface-subtle);
    border: 1px solid var(--color-border-mid);
    border-radius: var(--border-radius-md);
    padding: 0.375rem 0.75rem;
    font-family: inherit;
    font-size: 0.8125rem;
    color: var(--color-text-primary);
    width: 14rem;
}

.graph-search input::placeholder {
    color: var(--color-text-quaternary);
}

.graph-search input:focus {
    outline: none;
    border-color: var(--color-text-brand);
}

/* ── Timeline ─────────────────────────────────────── */

#timeline-container {
    width: 100%;
    height: calc(100vh - 10rem);
    min-height: 30rem;
    overflow: auto;
}

/* ── Heatmap ──────────────────────────────────────── */

#heatmap-container {
    width: 100%;
    height: calc(100vh - 10rem);
    min-height: 30rem;
}

/* ── Data Tables ──────────────────────────────────── */

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8125rem;
}

.data-table th {
    text-align: left;
    font-weight: 600;
    padding: 0.625rem 1rem;
    border-bottom: 1px solid var(--color-border-mid);
    color: var(--color-text-secondary);
    position: sticky;
    top: 0;
    background: var(--color-surface-base);
}

.data-table td {
    padding: 0.5rem 1rem;
    border-bottom: 1px solid var(--color-border-subtle);
    color: var(--color-text-secondary);
    vertical-align: top;
}

.data-table tr:hover td {
    background-color: var(--color-surface-alpha-subtle);
}

.data-table .cell-mono {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
}

.data-table .cell-tag {
    display: inline-block;
    padding: 0.0625rem 0.375rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.6875rem;
    font-weight: 600;
}

.tag-stale {
    background-color: var(--color-feedback-error-bg);
    color: var(--color-feedback-error-text);
}

.tag-valid {
    background-color: var(--color-feedback-success-bg);
    color: var(--color-feedback-success-text);
}

.tag-warning {
    background-color: var(--color-feedback-warning-bg);
    color: var(--color-feedback-warning-text);
}

/* ── Summary Cards ────────────────────────────────── */

.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.summary-card {
    padding: 1rem 1.25rem;
    background: var(--color-surface-subtle);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--border-radius-md);
}

.summary-card .card-label {
    font-size: 0.75rem;
    color: var(--color-text-tertiary);
    margin-bottom: 0.375rem;
}

.summary-card .card-value {
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.summary-card .card-detail {
    font-size: 0.75rem;
    color: var(--color-text-quaternary);
    margin-top: 0.25rem;
}

/* ── Friction Bar Chart ───────────────────────────── */

.friction-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.375rem;
}

.friction-bar .bar-label {
    width: 12rem;
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.friction-bar .bar-track {
    flex: 1;
    height: 0.375rem;
    background: var(--color-surface-mid);
    border-radius: var(--border-radius-full);
    overflow: hidden;
}

.friction-bar .bar-fill {
    height: 100%;
    background: var(--color-feedback-warning-text);
    border-radius: var(--border-radius-full);
}

.friction-bar .bar-count {
    width: 2rem;
    text-align: right;
    font-size: 0.75rem;
    color: var(--color-text-quaternary);
    font-family: 'JetBrains Mono', monospace;
}

/* ── Responsive ───────────────────────────────────── */

@media (max-width: 719.98px) {
    .repo-grid {
        grid-template-columns: 1fr;
    }

    .global-header {
        padding: 0 1rem;
    }

    .repo-header .repo-rid {
        display: none;
    }

    .graph-controls {
        flex-direction: column;
        align-items: flex-start;
    }

    .graph-search {
        margin-left: 0;
        width: 100%;
    }

    .graph-search input {
        width: 100%;
    }
}

@media (max-width: 1010.98px) {
    .repo-grid {
        grid-template-columns: 1fr;
    }

    .summary-cards {
        grid-template-columns: repeat(auto-fill, minmax(10rem, 1fr));
    }
}