/* ============================================
   GitHub Merge Queue Simulator Styles
   ============================================ */

/* ─── Reset & Tokens ─── */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Backgrounds */
    --bg-body: #0d1117;
    --bg-sidebar: #161b22;
    --bg-surface: #161b22;
    --bg-card: #1c2128;
    --bg-card-hover: #22272e;
    --bg-input: #0d1117;
    --bg-topbar: #161b22;

    /* Borders */
    --border: #30363d;
    --border-light: #21262d;
    --chart-current-line: #6e7681;

    /* Text */
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #5a6370;

    /* Accents */
    --blue: #388bfd;
    --blue-dim: rgba(56, 139, 253, 0.15);
    --green: #2ea043;
    --green-bright: #3fb950;
    --green-dim: rgba(46, 160, 67, 0.12);
    --red: #f85149;
    --red-dim: rgba(248, 81, 73, 0.12);
    --yellow: #d29922;
    --yellow-dim: rgba(210, 153, 34, 0.15);
    --purple: #a371f7;

    /* Sizing */
    --sidebar-width: 340px;
    --topbar-height: 60px;
    --lane-header-h: 42px;
    --card-gap: 4px;
    --radius: 6px;
    --radius-sm: 4px;

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --duration: 200ms;

    /* Fonts */
    --font-sans:
        -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial,
        sans-serif;
    --font-mono:
        "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

/* ─── Light Theme ─── */
[data-theme="light"] {
    --bg-body: #f6f8fa;
    --bg-sidebar: #ffffff;
    --bg-surface: #ffffff;
    --bg-card: #ffffff;
    --bg-card-hover: #f3f4f6;
    --bg-input: #f6f8fa;
    --bg-topbar: #ffffff;

    --border: #d0d7de;
    --border-light: #e1e4e8;
    --chart-current-line: #656d76;

    --text-primary: #1f2328;
    --text-secondary: #656d76;
    --text-muted: #8b949e;

    --blue: #0969da;
    --blue-dim: rgba(9, 105, 218, 0.1);
    --green: #1a7f37;
    --green-bright: #2da44e;
    --green-dim: rgba(26, 127, 55, 0.1);
    --red: #cf222e;
    --red-dim: rgba(207, 34, 46, 0.08);
    --yellow: #9a6700;
    --yellow-dim: rgba(154, 103, 0, 0.1);
    --purple: #8250df;
}

html,
body {
    height: 100%;
    overflow: hidden;
    background: var(--bg-body);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 13px;
    line-height: 1.4;
    -webkit-font-smoothing: antialiased;
    /* Support for safe area insets on iOS */
    padding-bottom: env(safe-area-inset-bottom);
}

/* ─── App Layout ─── */
.app {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
    height: 100vh;
    /* Use dynamic viewport height on mobile for better Chrome iOS support */
    height: 100dvh;
    /* Fallback for browsers that don't support dvh */
    min-height: 100vh;
}

/* ─── Sidebar ─── */
.sidebar {
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 10px;
    height: var(--topbar-height);
    padding: 0 18px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.sidebar-header h2 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
}

.sidebar-logo {
    color: var(--text-secondary);
    flex-shrink: 0;
}

.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-card);
    color: var(--yellow);
    cursor: pointer;
    flex-shrink: 0;
    transition: color var(--duration), background var(--duration), border-color var(--duration);
    touch-action: manipulation;
}

/* Show sun in dark mode, moon in light mode */
.theme-icon--light {
    display: none;
}

.theme-icon--dark {
    display: block;
}

[data-theme="light"] .theme-icon--light {
    display: block;
}

[data-theme="light"] .theme-icon--dark {
    display: none;
}

[data-theme="light"] .theme-toggle {
    color: var(--blue);
}

@media (hover: hover) {
    .theme-toggle:hover {
        color: var(--yellow);
        background: var(--bg-card-hover);
        border-color: var(--yellow);
    }

    [data-theme="light"] .theme-toggle:hover {
        color: var(--blue);
        border-color: var(--blue);
    }
}


.sidebar-body {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

/* Scrollbar */
.sidebar-body::-webkit-scrollbar,
.lane-body::-webkit-scrollbar,
.summary-body::-webkit-scrollbar,
.glossary-body::-webkit-scrollbar,
.welcome-presets-section::-webkit-scrollbar {
    width: 6px;
}

.sidebar-body::-webkit-scrollbar-track,
.lane-body::-webkit-scrollbar-track,
.summary-body::-webkit-scrollbar-track,
.glossary-body::-webkit-scrollbar-track,
.welcome-presets-section::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-body::-webkit-scrollbar-thumb,
.lane-body::-webkit-scrollbar-thumb,
.summary-body::-webkit-scrollbar-thumb,
.glossary-body::-webkit-scrollbar-thumb,
.welcome-presets-section::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

@media (hover: hover) {

    .sidebar-body::-webkit-scrollbar-thumb:hover,
    .lane-body::-webkit-scrollbar-thumb:hover,
    .summary-body::-webkit-scrollbar-thumb:hover,
    .glossary-body::-webkit-scrollbar-thumb:hover,
    .welcome-presets-section::-webkit-scrollbar-thumb:hover {
        background: var(--text-muted);
    }
}

.summary-body::-webkit-scrollbar-track,
.glossary-body::-webkit-scrollbar-track,
.welcome-presets-section::-webkit-scrollbar-track {
    margin: 4px 0;
}

/* Sidebar footer */
.sidebar-footer {
    padding: 12px 18px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sidebar-footer-links {
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-link {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: color var(--duration) var(--ease-out);
}

@media (hover: hover) {
    .sidebar-link:hover {
        color: var(--text-primary);
    }
}

.sponsor-btn {
    flex: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 4px 12px;
    height: 32px;
    font-size: 12px;
    font-weight: 600;
    font-family: var(--font-sans);
    color: #c9d1d9;
    background: #21262d;
    border: 1px solid rgba(240, 46, 170, 0.4);
    border-radius: 6px;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--duration) var(--ease-out);
}

.sponsor-btn svg {
    color: #db61a2;
    flex-shrink: 0;
}

@media (hover: hover) {
    .sponsor-btn:hover {
        background: #30363d;
        border-color: #f02eaa;
        color: #f0f6fc;
    }

    .sponsor-btn:hover svg {
        color: #f02eaa;
    }
}

[data-theme="light"] .card {
    border-color: var(--border);
}

[data-theme="light"] .card--inactive {
    border-color: transparent;
}

[data-theme="light"] .card--success {
    border-color: rgba(26, 127, 55, 0.3);
}

[data-theme="light"] .card--fail {
    border-color: rgba(207, 34, 46, 0.3);
}

[data-theme="light"] .card--merged {
    border-color: rgba(26, 127, 55, 0.25);
}

[data-theme="light"] .card--rejected {
    border-color: rgba(207, 34, 46, 0.25);
}

[data-theme="light"] .sponsor-btn {
    color: #24292f;
    background: #f6f8fa;
    border-color: rgba(219, 97, 162, 0.5);
}

@media (hover: hover) {
    [data-theme="light"] .sponsor-btn:hover {
        background: #f3f4f6;
        border-color: #bf3989;
        color: #1f2328;
    }
}

.sidebar-help-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 8px 12px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-muted);
    font-size: 12px;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: all var(--duration) var(--ease-out);
}

@media (hover: hover) {
    .sidebar-help-btn:hover {
        background: var(--bg-card);
        color: var(--text-secondary);
        border-color: var(--text-muted);
    }
}

.sidebar-summary-btn {
    color: var(--blue);
}

@media (hover: hover) {
    .sidebar-summary-btn:hover {
        color: var(--blue);
        border-color: var(--blue);
    }
}

/* ─── Controls ─── */
.sidebar-divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 4px 0;
}

/* ─── Collapsible Sections ─── */
.collapsible-section {
    display: flex;
    flex-direction: column;
}

.section-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 4px 0;
    background: none;
    border: none;
    cursor: pointer;
    color: inherit;
    font: inherit;
}

@media (hover: hover) {
    .section-toggle:hover .section-heading {
        color: var(--blue);
    }
}

.section-chevron {
    width: 12px;
    height: 12px;
    position: relative;
    flex-shrink: 0;
}

.section-chevron::before {
    content: "";
    display: block;
    width: 7px;
    height: 7px;
    border-right: 2px solid var(--text-muted);
    border-bottom: 2px solid var(--text-muted);
    transform: rotate(45deg);
    transition: transform 0.2s ease;
    position: absolute;
    top: 1px;
    left: 2px;
}

.collapsible-section.collapsed .section-chevron::before {
    transform: rotate(-45deg);
    top: 4px;
}

.collapsible-body {
    display: flex;
    flex-direction: column;
    gap: 12px;
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.2s ease;
    max-height: 2000px;
    opacity: 1;
    padding-top: 4px;
}

.collapsible-section.collapsed .collapsible-body {
    max-height: 0;
    opacity: 0;
    padding-top: 0;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.control-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.section-heading {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.control-value {
    color: var(--text-primary);
    font-weight: 600;
    font-family: var(--font-mono);
    font-size: 12px;
}

.control-value-input-wrap {
    display: inline-flex;
    align-items: center;
    gap: 1px;
}

.control-value-input {
    width: 48px;
    padding: 1px 4px;
    font-size: 12px;
    font-weight: 600;
    font-family: var(--font-mono);
    color: var(--text-primary);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    text-align: right;
    -moz-appearance: textfield;
}

.control-value-input::-webkit-inner-spin-button,
.control-value-input::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.control-value-input:focus {
    outline: none;
    border-color: var(--blue);
}

.control-value-suffix {
    font-size: 12px;
    font-weight: 600;
    font-family: var(--font-mono);
    color: var(--text-primary);
}

/* Range slider */
.slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 4px;
    background: var(--border);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--blue);
    cursor: pointer;
    transition: box-shadow var(--duration) var(--ease-out);
}

@media (hover: hover) {
    .slider::-webkit-slider-thumb:hover {
        box-shadow: 0 0 0 4px var(--blue-dim);
    }
}

.slider::-moz-range-thumb {
    width: 14px;
    height: 14px;
    border: none;
    border-radius: 50%;
    background: var(--blue);
    cursor: pointer;
}

.slider-hints {
    display: flex;
    justify-content: space-between;
    font-size: 10px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* Speed buttons */
.speed-btns {
    display: flex;
    gap: 6px;
}

.speed-btn {
    flex: 1;
    padding: 5px 8px;
    font-size: 11px;
    font-family: var(--font-sans);
    font-weight: 500;
    color: var(--text-secondary);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.15s ease;
}

@media (hover: hover) {
    .speed-btn:hover {
        color: var(--text-primary);
        border-color: var(--text-muted);
    }
}

.speed-btn.speed-btn--active {
    color: var(--blue);
    border-color: var(--blue);
    background: var(--blue-dim);
}

/* Optimal concurrency hint */
.optimal-concurrency-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 8px 10px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.optimal-concurrency-label {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.optimal-concurrency-value-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.optimal-concurrency-value {
    font-size: 16px;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--text-primary);
}

.optimal-apply-btn {
    padding: 3px 10px;
    font-size: 11px;
    font-family: var(--font-sans);
    font-weight: 500;
    color: var(--blue);
    background: var(--blue-dim);
    border: 1px solid var(--blue);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.15s ease;
}

@media (hover: hover) {
    .optimal-apply-btn:hover {
        background: var(--blue);
        color: #fff;
    }
}

.optimal-info {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    font-size: 10px;
    font-weight: 700;
    font-family: var(--font-sans);
    color: var(--text-muted);
    border: 1px solid var(--border);
    border-radius: 50%;
    cursor: help;
    flex-shrink: 0;
}

/* Optimal chart */
.optimal-chart-wrap {
    position: relative;
    margin-top: 4px;
}

#optimal-chart {
    width: 100%;
    height: 260px;
    cursor: pointer;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    display: block;
}

.optimal-chart-tooltip {
    position: absolute;
    padding: 4px 8px;
    font-size: 10px;
    line-height: 1.45;
    color: var(--text-secondary);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    pointer-events: none;
    white-space: nowrap;
    z-index: 2;
    max-width: 100%;
    box-sizing: border-box;
}

.optimal-chart-legend {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin-top: 6px;
    font-size: 10px;
    color: var(--text-muted);
}

.optimal-legend-item {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 2px 6px;
    color: var(--text-muted);
    font-size: 10px;
    opacity: 0.85;
}

button.optimal-legend-item {
    cursor: pointer;
    background: none;
    border: none;
    border-radius: 4px;
    font: inherit;
    font-size: 10px;
    transition: opacity 0.15s, background 0.15s;
    opacity: 0.65;
    text-decoration: underline dashed;
    text-underline-offset: 3px;
    text-decoration-thickness: 1px;
    text-decoration-color: var(--text-muted);
}

@media (hover: hover) {
    button.optimal-legend-item:hover {
        opacity: 1;
        background: rgba(255, 255, 255, 0.06);
        text-decoration-color: var(--text);
    }
}

button.optimal-legend-item.optimal-legend-item--active {
    opacity: 1;
    color: var(--text);
    background: rgba(255, 255, 255, 0.14);
    text-decoration: none;
}

@media (hover: hover) {
    [data-theme="light"] button.optimal-legend-item:hover {
        background: rgba(0, 0, 0, 0.06);
    }
}

[data-theme="light"] button.optimal-legend-item.optimal-legend-item--active {
    background: rgba(0, 0, 0, 0.08);
}

.optimal-legend-item::before {
    content: "";
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.optimal-legend-cost::before {
    background: var(--red);
}

.optimal-legend-wall::before {
    background: var(--purple);
}

.optimal-chart-desc {
    margin: 8px 0 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 10px;
    color: var(--text-muted);
}

.optimal-desc-row {
    display: flex;
    align-items: center;
    gap: 6px;
}

.optimal-desc-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    flex-shrink: 0;
}

.optimal-chart-desc strong {
    color: var(--text-secondary);
    margin-right: 2px;
}

.optimal-desc-hint {
    margin-top: 4px;
    font-size: 11px;
    color: var(--text-secondary);
    font-style: italic;
}

.optimal-estimates-section {
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px solid var(--border);
}

.optimal-estimates-header {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.optimal-chart-estimates {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-top: 8px;
}

.optimal-estimate-row {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 10px 12px;
    border-radius: var(--radius);
    border-left: 3px solid transparent;
}

.optimal-estimate-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.optimal-estimate-subrow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    font-size: 10px;
    margin-left: 8px;
}

.optimal-estimate-sublabel {
    color: var(--text-muted);
}

.optimal-estimate-subvalue {
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

.optimal-estimate-row--wall .optimal-estimate-subvalue {
    color: rgba(163, 113, 247, 0.85);
}

.optimal-estimate-row--cost .optimal-estimate-subvalue {
    color: rgba(248, 81, 73, 0.85);
}

[data-theme="light"] .optimal-estimate-row--wall .optimal-estimate-subvalue {
    color: rgba(130, 80, 223, 0.9);
}

[data-theme="light"] .optimal-estimate-row--cost .optimal-estimate-subvalue {
    color: rgba(207, 34, 46, 0.85);
}

.optimal-estimate-row--wall {
    background: rgba(163, 113, 247, 0.08);
    border-left-color: rgba(163, 113, 247, 0.6);
}

.optimal-estimate-row--cost {
    background: rgba(248, 81, 73, 0.08);
    border-left-color: rgba(248, 81, 73, 0.6);
}

[data-theme="light"] .optimal-estimate-row--wall {
    background: rgba(130, 80, 223, 0.14);
    border-left-color: var(--purple);
}

[data-theme="light"] .optimal-estimate-row--cost {
    background: rgba(207, 34, 46, 0.1);
    border-left-color: var(--red);
}

.optimal-estimate-label {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.optimal-estimate-row--wall .optimal-estimate-label {
    color: rgba(163, 113, 247, 0.9);
}

.optimal-estimate-row--cost .optimal-estimate-label {
    color: rgba(248, 81, 73, 0.9);
}

[data-theme="light"] .optimal-estimate-row--wall .optimal-estimate-label {
    color: var(--purple);
}

[data-theme="light"] .optimal-estimate-row--cost .optimal-estimate-label {
    color: var(--red);
}

.optimal-estimate-value {
    font-size: 14px;
    font-weight: 600;
    font-family: var(--font-mono);
    letter-spacing: 0.02em;
}

.optimal-estimate-row--wall .optimal-estimate-value {
    color: rgba(163, 113, 247, 0.95);
}

.optimal-estimate-row--cost .optimal-estimate-value {
    color: rgba(248, 81, 73, 0.95);
}

[data-theme="light"] .optimal-estimate-row--wall .optimal-estimate-value {
    color: var(--purple);
}

[data-theme="light"] .optimal-estimate-row--cost .optimal-estimate-value {
    color: var(--red);
}

/* Toggle switch */
.toggle-row {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.toggle {
    position: relative;
    display: inline-block;
    width: 36px;
    height: 20px;
    flex-shrink: 0;
}

.toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-track {
    position: absolute;
    inset: 0;
    background: var(--border);
    border-radius: 10px;
    cursor: pointer;
    transition: background var(--duration) var(--ease-out);
}

.toggle-track::after {
    content: "";
    position: absolute;
    top: 2px;
    left: 2px;
    width: 16px;
    height: 16px;
    background: var(--text-secondary);
    border-radius: 50%;
    transition:
        transform var(--duration) var(--ease-out),
        background var(--duration) var(--ease-out);
}

.toggle input:checked+.toggle-track {
    background: var(--blue-dim);
}

.toggle input:checked+.toggle-track::after {
    transform: translateX(16px);
    background: var(--blue);
}

.toggle-hint {
    font-size: 11px;
    color: var(--text-muted);
}

/* Presets */
.presets-group {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.presets {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.preset-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-secondary);
    padding: 10px 12px;
    font-size: 12px;
    font-weight: 500;
    font-family: var(--font-sans);
    cursor: pointer;
    text-align: center;
    transition: all 0.2s ease;
}

@media (hover: hover) {
    .preset-btn:hover {
        color: var(--text-primary);
        background: var(--bg-card-hover);
    }
}

.preset-btn:active {
    transform: scale(0.98);
}

.preset-btn--selected {
    font-weight: 600;
    background: var(--bg-card-hover);
}

.preset-btn--selected.preset-default {
    border-left-color: var(--text-primary);
}

.preset-btn--selected.preset-green {
    border-left-color: var(--green);
    background: rgba(63, 185, 80, 0.12);
}

.preset-btn--selected.preset-flaky {
    border-left-color: var(--yellow);
    background: rgba(210, 153, 34, 0.12);
}

.preset-btn--selected.preset-disaster {
    border-left-color: var(--red);
    background: rgba(248, 81, 73, 0.12);
}

.preset-btn--selected.preset-fast {
    border-left-color: var(--blue);
    background: rgba(56, 139, 253, 0.12);
}

[data-theme="light"] .preset-btn--selected.preset-green {
    background: rgba(46, 160, 67, 0.14);
}

[data-theme="light"] .preset-btn--selected.preset-flaky {
    background: rgba(154, 103, 0, 0.14);
}

[data-theme="light"] .preset-btn--selected.preset-disaster {
    background: rgba(207, 34, 46, 0.12);
}

[data-theme="light"] .preset-btn--selected.preset-fast {
    background: rgba(9, 105, 218, 0.12);
}

/* Preset accent colors */
.preset-default {
    border-left: 3px solid var(--text-muted);
}

.preset-btn--selected.preset-default {
    border-left-color: var(--text-primary);
}

@media (hover: hover) {
    .preset-default:hover {
        border-left-color: var(--text-primary);
    }
}

@media (hover: hover) {
    [data-theme="light"] .preset-default:hover {
        background: rgba(0, 0, 0, 0.04);
    }
}

.preset-green {
    border-left: 3px solid var(--green);
}

@media (hover: hover) {
    .preset-green:hover {
        border-left-color: var(--green);
        background: rgba(63, 185, 80, 0.08);
    }
}

.preset-flaky {
    border-left: 3px solid var(--yellow);
}

@media (hover: hover) {
    .preset-flaky:hover {
        border-left-color: var(--yellow);
        background: rgba(210, 153, 34, 0.08);
    }
}

.preset-disaster {
    border-left: 3px solid var(--red);
}

@media (hover: hover) {
    .preset-disaster:hover {
        border-left-color: var(--red);
        background: rgba(248, 81, 73, 0.08);
    }
}

.preset-fast {
    border-left: 3px solid var(--blue);
}

@media (hover: hover) {
    .preset-fast:hover {
        border-left-color: var(--blue);
        background: rgba(56, 139, 253, 0.08);
    }
}

/* Light mode: stronger hover backgrounds */
@media (hover: hover) {
    [data-theme="light"] .preset-green:hover {
        background: rgba(46, 160, 67, 0.12);
    }

    [data-theme="light"] .preset-flaky:hover {
        background: rgba(154, 103, 0, 0.12);
    }

    [data-theme="light"] .preset-disaster:hover {
        background: rgba(207, 34, 46, 0.10);
    }

    [data-theme="light"] .preset-fast:hover {
        background: rgba(9, 105, 218, 0.10);
    }
}

/* ─── Main Area ─── */
.main {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* ─── Top Bar ─── */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    height: var(--topbar-height);
    padding: 0 20px;
    background: var(--bg-topbar);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.topbar-title {
    font-size: 15px;
    font-weight: 600;
    white-space: nowrap;
    color: var(--text-primary);
}

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

.topbar-right {
    display: flex;
    gap: 16px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 14px;
    font-size: 12px;
    font-weight: 500;
    font-family: var(--font-sans);
    border: 1px solid transparent;
    border-radius: var(--radius);
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--duration) var(--ease-out);
}

.btn[hidden] {
    display: none;
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.btn-icon {
    font-size: 11px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.btn-icon-only {
    padding: 6px 10px;
    justify-content: center;
}

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

@media (hover: hover) {
    .btn-primary:hover:not(:disabled) {
        background: var(--green-bright);
        border-color: var(--green-bright);
    }
}

.btn-primary.btn--paused {
    background: var(--bg-card);
    color: var(--text-primary);
    border-color: var(--yellow);
}

@media (hover: hover) {
    .btn-primary.btn--paused:hover:not(:disabled) {
        background: var(--yellow-dim);
        border-color: var(--yellow);
        color: var(--text-primary);
    }
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border-color: var(--border);
}

@media (hover: hover) {
    .btn-secondary:hover:not(:disabled) {
        background: var(--bg-card-hover);
        border-color: var(--text-muted);
    }
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border);
}

@media (hover: hover) {
    .btn-ghost:hover:not(:disabled) {
        background: var(--bg-card);
        color: var(--text-primary);
    }
}

#btn-speed-topbar {
    width: 145px;
    justify-content: center;
}

#btn-start {
    min-width: 100px;
    justify-content: center;
}

#btn-step-mode {
    min-width: 102px;
    justify-content: center;
}

.btn-step-active {
    background: var(--green-dim);
    color: var(--green-bright);
    border-color: var(--green);
}

@media (hover: hover) {
    .btn-step-active:hover {
        background: var(--green);
        color: #fff;
    }
}

/* Stats */
.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.stat-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.stat-value {
    font-size: 16px;
    font-weight: 700;
    font-family: var(--font-mono);
}

.stat-queue {
    color: var(--blue);
}

.stat-merged {
    color: var(--green-bright);
}

.stat-rejected {
    color: var(--red);
}

.stat-reruns {
    color: var(--yellow);
}

.stat-ci-useful {
    color: var(--green-bright);
    font-size: 14px;
}

.stat-ci-wasted {
    color: var(--red);
    font-size: 14px;
}

.stat-ci-ratio {
    color: var(--yellow);
    font-size: 14px;
}

.stat-wall-clock {
    color: var(--text-secondary);
    font-size: 14px;
}

.stat-time-saved {
    color: var(--purple);
    font-size: 14px;
}

.stat-divider {
    width: 1px;
    height: 28px;
    background: var(--border);
    align-self: center;
}

/* Floating delta overlay (+time) */
.stat-delta {
    position: absolute;
    left: 50%;
    bottom: 100%;
    transform: translateX(-50%) translateY(4px);
    font-size: 11px;
    font-weight: 700;
    font-family: var(--font-mono);
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition:
        transform 1s var(--ease-out),
        opacity 0.8s ease;
}

.stat-delta--active {
    opacity: 1;
    transform: translateX(-50%) translateY(-18px);
}

/* Fade out at the end */
.stat-delta--active {
    animation: stat-delta-fade 1.1s ease forwards;
}

@keyframes stat-delta-fade {
    0% {
        opacity: 0;
        transform: translateX(-50%) translateY(4px);
    }

    15% {
        opacity: 1;
        transform: translateX(-50%) translateY(-10px);
    }

    70% {
        opacity: 1;
        transform: translateX(-50%) translateY(-18px);
    }

    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(-24px);
    }
}

/* ─── Lanes ─── */
.lanes {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--border);
    overflow: hidden;
}

.lane {
    display: flex;
    flex-direction: column;
    background: var(--bg-body);
    overflow: hidden;
}

.lane-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--lane-header-h);
    padding: 0 14px;
    flex-shrink: 0;
    border-bottom: 2px solid var(--border);
    background: var(--bg-surface);
}

.lane-header--queue {
    border-bottom-color: var(--blue);
}

.lane-header--rejected {
    border-bottom-color: var(--red);
}

.lane-header--merged {
    border-bottom-color: var(--green);
}

.lane-title {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-secondary);
}

.lane-header-stats {
    display: flex;
    align-items: center;
    gap: 6px;
}

.lane-count {
    font-size: 12px;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--text-muted);
    background: var(--bg-card);
    padding: 2px 8px;
    border-radius: 10px;
}

.lane-pct {
    font-size: 11px;
    font-weight: 600;
    font-family: var(--font-mono);
    color: var(--text-muted);
}

.lane-pct--merged {
    color: var(--green-bright);
}

.lane-pct--rejected {
    color: var(--red);
}

.lane-body {
    flex: 1;
    overflow-y: auto;
    padding: 6px 6px;
    display: flex;
    flex-direction: column;
    gap: var(--card-gap);
}

/* ─── Commit Cards ─── */
.card {
    display: flex;
    flex-direction: column;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    border: 1px solid transparent;
    transition:
        background var(--duration) var(--ease-out),
        border-color var(--duration) var(--ease-out),
        opacity var(--duration) var(--ease-out);
    min-height: 32px;
    flex-shrink: 0;
    contain: layout style;
}

.card-row {
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 20px;
}

/* Status dot */
.card-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    flex-shrink: 0;
    background: var(--text-muted);
    transition: background var(--duration) var(--ease-out);
}

.card-name {
    flex: 1;
    font-size: 12px;
    font-family: var(--font-mono);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--text-primary);
}

.card-time {
    font-size: 10px;
    font-family: var(--font-mono);
    color: var(--text-muted);
    white-space: nowrap;
    flex-shrink: 0;
}

.card-date {
    display: none;
}

.card-badge {
    font-size: 11px;
    font-weight: 700;
    flex-shrink: 0;
}

.card-reruns-subline {
    font-size: 10px;
    color: var(--text-secondary);
    margin-top: 2px;
    margin-left: 20px;
}

[data-theme="light"] .card-reruns-subline {
    color: var(--text-secondary);
}

/* Progress bar: full width, always visible on active cards */
.card-progress {
    height: 3px;
    margin-top: 5px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
    width: 100%;
}

.card-progress-fill {
    height: 100%;
    border-radius: 2px;
    background: var(--blue);
    transition: width 80ms linear;
    will-change: width;
}

.card-progress-fill--success {
    background: var(--green-bright);
}

.card-progress-fill--fail {
    background: var(--red);
}

/* ─── Card States ─── */

/* Inactive (queued, not in active window) */
.card--inactive {
    opacity: 0.35;
    background: transparent;
    border-color: transparent;
    min-height: 28px;
    padding: 4px 10px;
}

.card--inactive .card-name {
    color: var(--text-secondary);
    font-size: 11px;
}

/* Active, idle: just entered window, CI not started */
.card--idle .card-dot {
    background: var(--text-muted);
}

/* Active, running */
.card--running {
    background: var(--bg-card);
    border-color: var(--border-light);
}

.card--running .card-dot {
    background: var(--blue);
    box-shadow: 0 0 6px var(--blue-dim);
    animation: pulse-dot 1.6s ease-in-out infinite;
}

.card--running .card-progress-fill {
    background: var(--blue);
}

/* Active, success: CI passed, waiting in queue */
.card--success {
    background: var(--green-dim);
    border-color: rgba(46, 160, 67, 0.25);
}

.card--success .card-dot {
    background: var(--green-bright);
}

.card--success .card-name {
    color: var(--green-bright);
}

.card--success .card-badge {
    color: var(--green-bright);
}

/* Active, fail: CI failed, waiting in queue */
.card--fail {
    background: var(--red-dim);
    border-color: rgba(248, 81, 73, 0.25);
}

.card--fail .card-dot {
    background: var(--red);
}

.card--fail .card-name {
    color: var(--red);
}

.card--fail .card-badge {
    color: var(--red);
}

/* Merged lane cards */
.card--merged {
    background: var(--green-dim);
    border-color: rgba(46, 160, 67, 0.18);
}

.card--merged .card-dot {
    background: var(--green-bright);
}

.card--merged .card-badge {
    color: var(--green-bright);
}

/* Rejected lane cards */
.card--rejected {
    background: var(--red-dim);
    border-color: rgba(248, 81, 73, 0.18);
}

.card--rejected .card-dot {
    background: var(--red);
}

.card--rejected .card-badge {
    color: var(--red);
}

/* ─── Animations ─── */
@keyframes pulse-dot {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.45;
    }
}

@keyframes slide-in {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card--entering {
    animation: slide-in 0.25s var(--ease-out) both;
}

/* Flying clones during step-mode transitions */
.card-clone-flying {
    border-radius: var(--radius-sm);
    box-shadow:
        0 8px 24px rgba(0, 0, 0, 0.4),
        0 2px 8px rgba(0, 0, 0, 0.3);
}

/* Queue reflow after items are removed */
.card--shifting {
    animation: queue-shift 0.35s var(--ease-out) both;
}

@keyframes queue-shift {
    from {
        transform: translateY(-10px);
        opacity: 0;
    }
}

/* Lane-header flash on concurrent merge */
@keyframes flash-green {
    0% {
        background: var(--green-dim);
    }

    100% {
        background: var(--bg-surface);
    }
}

@keyframes flash-red {
    0% {
        background: var(--red-dim);
    }

    100% {
        background: var(--bg-surface);
    }
}

.lane-header--merged.flash {
    animation: flash-green 0.6s var(--ease-out);
}

.lane-header--rejected.flash {
    animation: flash-red 0.6s var(--ease-out);
}

/* ─── Step Overlay & Banner ─── */
.step-overlay[hidden] {
    display: none;
}

/* Desktop: full overlay with centered card */
@media (min-width: 1001px) {
    .step-overlay {
        position: absolute;
        top: var(--topbar-height);
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 850;
        display: flex;
        align-items: center;
        justify-content: center;
        background: rgba(0, 0, 0, 0.35);
        backdrop-filter: blur(2px);
        cursor: pointer;
        animation: step-overlay-fade 0.25s var(--ease-out);
    }

    .step-banner {
        cursor: default;
        padding: 24px 28px;
        max-width: 420px;
        border-radius: 12px;
        border: 1px solid var(--border);
        box-shadow: 0 24px 48px rgba(0, 0, 0, 0.4);
        animation: step-card-pop 0.3s var(--ease-out);
    }

    .step-banner-inner {
        flex-direction: row;
        flex-wrap: wrap;
        align-items: flex-start;
        gap: 16px;
    }

    .step-banner-btn {
        flex: 1 1 100%;
    }

    .step-banner-icon {
        width: 44px;
        height: 44px;
        font-size: 22px;
    }

    .step-banner-title {
        font-size: 15px;
    }

    .step-banner-desc {
        font-size: 13px;
        white-space: normal;
        line-height: 1.5;
    }

    .step-banner-desc-text {
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
        overflow: hidden;
        line-clamp: 3;
    }

    .step-banner-hint {
        font-size: 12px;
        color: var(--text-muted);
        margin-top: 8px;
    }

    .step-banner-btn {
        width: 100%;
        min-height: 44px;
        padding: 12px 24px;
        font-size: 14px;
        justify-content: center;
    }
}

@keyframes step-overlay-fade {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes step-card-pop {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(8px);
    }

    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

/* Mobile: overlay at bottom, banner as full-width bar */
@media (max-width: 1000px) {
    .step-overlay {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 100;
        display: flex;
        align-items: flex-end;
        justify-content: center;
        background: transparent;
        cursor: default;
        pointer-events: none;
        /* Account for safe area on iOS */
        padding-bottom: env(safe-area-inset-bottom);
    }

    .step-overlay .step-banner {
        width: 100%;
        align-self: stretch;
        pointer-events: auto;
        cursor: default;
    }

    .desktop-only {
        display: none;
    }
}

.step-banner {
    background: linear-gradient(to top,
            rgba(13, 17, 23, 0.97),
            rgba(13, 17, 23, 0.92));
    backdrop-filter: blur(8px);
    border-top: 1px solid var(--border);
    animation: banner-slide-up 0.3s var(--ease-out);
}

.step-banner-inner {
    display: flex;
    align-items: center;
    gap: 14px;
    max-width: 720px;
    margin: 0 auto;
}

.step-banner-icon {
    font-size: 22px;
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    background: var(--bg-card);
    border: 1px solid var(--border);
}

.step-banner-icon--merge {
    background: var(--green-dim);
    border-color: rgba(46, 160, 67, 0.25);
}

.step-banner-icon--reject {
    background: var(--red-dim);
    border-color: rgba(248, 81, 73, 0.25);
}

.step-banner-text {
    flex: 1;
    min-width: 0;
}

.step-banner-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.step-banner-desc {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 2px;
    font-family: var(--font-mono);
    white-space: normal;
    line-height: 1.5;
}

.step-banner-time {
    font-weight: 600;
    display: inline-block;
    padding-left: 1em;
}

/* Desktop: show CI info on its own line after description */
@media (min-width: 1001px) {
    .step-banner-desc {
        display: block;
    }

    .step-banner-desc-text {
        display: block;
    }

    .step-banner-time {
        display: block;
        padding-left: 0;
        margin-top: 0.5em;
    }
}

.step-banner-time--useful {
    color: var(--green-bright);
}

.step-banner-time--wasted {
    color: var(--red);
}

.step-banner-btn {
    flex-shrink: 0;
    padding: 8px 20px;
    font-size: 13px;
    font-weight: 600;
}

[data-theme="light"] .step-banner {
    background: linear-gradient(to top,
            rgba(255, 255, 255, 0.97),
            rgba(255, 255, 255, 0.92));
}

@keyframes banner-slide-up {
    from {
        opacity: 0;
        transform: translateY(12px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Make .main position relative so banner can anchor to it */
.main {
    position: relative;
}

/* ─── Summary Overlay ─── */
.summary-overlay {
    position: fixed;
    inset: 0;
    z-index: 900;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    animation: summaryFadeIn 0.3s ease-out;
}

.summary-overlay[hidden] {
    display: none;
}

@keyframes summaryFadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.summary-card {
    background: var(--bg-sidebar);
    border: 1px solid var(--border);
    border-radius: 12px;
    width: 500px;
    max-width: 90vw;
    max-height: 90dvh;
    max-height: 90vh;
    /* Fallback for browsers without dvh support */
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: summarySlideUp 0.3s ease-out;
}

.summary-body {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

@keyframes summarySlideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.summary-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px 14px;
    border-bottom: 1px solid var(--border);
}

.summary-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-sans);
}

.summary-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 16px;
    cursor: pointer;
    padding: 4px;
    line-height: 1;
    transition: color var(--duration) var(--ease-out);
}

@media (hover: hover) {
    .summary-close:hover {
        color: var(--text-primary);
    }
}

.summary-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2px;
    padding: 16px 20px;
}

.summary-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 12px 8px;
    border-radius: var(--radius);
    background: var(--bg-card);
}

.summary-stat--merged {
    background: var(--green-dim);
}

.summary-stat--rejected {
    background: var(--red-dim);
}

.summary-stat--yellow {
    background: var(--yellow-dim);
}

.summary-stat--blue {
    background: var(--blue-dim);
}

.summary-stat--blue .summary-stat-value {
    color: var(--blue);
}

.summary-stat-value {
    font-size: 28px;
    font-weight: 800;
    font-family: var(--font-mono);
    color: var(--text-primary);
    line-height: 1.2;
}

.summary-stat--merged .summary-stat-value {
    color: var(--green-bright);
}

.summary-stat--rejected .summary-stat-value {
    color: var(--red);
}

.summary-stat--yellow .summary-stat-value {
    color: var(--yellow);
}

.summary-stat-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 2px;
}

.summary-divider {
    height: 1px;
    background: var(--border);
    margin: 0 20px;
}

.summary-rows {
    padding: 12px 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Column header for comparison mode */
.summary-col-header {
    display: grid;
    grid-template-columns: 1fr auto auto auto;
    gap: 8px;
    padding: 8px 20px 0;
    align-items: center;
}

.summary-col-header[hidden] {
    display: none;
}

.summary-col-label {
    font-size: 10px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-align: right;
    min-width: 64px;
}

.summary-col-label:first-child {
    text-align: left;
    min-width: 0;
}

.summary-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 8px;
    align-items: center;
}

.summary-row--compare {
    grid-template-columns: 1fr auto auto auto;
}

.summary-row--highlight {
    padding: 6px 10px;
    background: var(--blue-dim);
    border-radius: var(--radius);
    margin: 2px -10px;
}

.summary-row-label {
    font-size: 12px;
    color: var(--text-muted);
}

.summary-row-prev,
.summary-row-diff {
    display: none;
}

.summary-row--compare .summary-row-prev,
.summary-row--compare .summary-row-diff {
    display: block;
}

.summary-row-prev {
    font-size: 11px;
    font-family: var(--font-mono);
    color: var(--text-muted);
    text-align: right;
    min-width: 64px;
}

.summary-row-value {
    font-size: 13px;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--text-primary);
    text-align: right;
    min-width: 64px;
}

.summary-row-diff {
    font-size: 11px;
    font-weight: 600;
    font-family: var(--font-mono);
    text-align: right;
    min-width: 64px;
    color: var(--text-muted);
}

.summary-row-diff--better {
    color: var(--green-bright);
}

.summary-row-diff--worse {
    color: var(--red);
}

.summary-row-value--green {
    color: var(--green-bright);
}

.summary-row-value--red {
    color: var(--red);
}

.summary-row--highlight .summary-row-label,
.summary-row--highlight .summary-row-value {
    color: var(--blue);
    font-weight: 700;
}

.summary-row--muted .summary-row-label {
    font-size: 11px;
}

.summary-row--muted .summary-row-value {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
}

.summary-footer {
    padding: 20px 16px;
    border-top: 1px solid var(--border);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.summary-footer .btn {
    min-height: 48px;
    min-width: 90px;
    padding: 14px 20px;
    font-size: 15px;
    justify-content: center;
}

#summary-instant {
    grid-column: 1 / -1;
}

/* ─── Glossary Dialog ─── */
.glossary-overlay {
    position: fixed;
    inset: 0;
    z-index: 950;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    animation: glossaryFadeIn 0.3s ease-out;
}

.glossary-overlay[hidden] {
    display: none;
}

@keyframes glossaryFadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.glossary-dialog {
    background: var(--bg-sidebar);
    border: 1px solid var(--border);
    border-radius: 12px;
    width: 720px;
    max-width: 95vw;
    max-height: 90dvh;
    max-height: 90vh;
    /* Fallback for browsers without dvh support */
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: glossarySlideUp 0.3s ease-out;
}

@keyframes glossarySlideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.glossary-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px 14px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.glossary-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.glossary-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 16px;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    transition: color var(--duration) var(--ease-out);
}

@media (hover: hover) {
    .glossary-close:hover {
        color: var(--text-primary);
    }
}

.glossary-search-wrap {
    flex-shrink: 0;
    padding: 12px 20px 0;
}

.glossary-search {
    width: 100%;
    padding: 10px 14px;
    font-size: 14px;
    font-family: var(--font-sans);
    color: var(--text-primary);
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    outline: none;
    transition: border-color var(--duration) var(--ease-out);
}

.glossary-search::placeholder {
    color: var(--text-muted);
}

.glossary-search:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 3px var(--blue-dim);
}

.glossary-content {
    flex: 1;
    display: flex;
    min-height: 0;
    overflow: hidden;
}

.glossary-nav {
    flex-shrink: 0;
    width: 180px;
    padding: 16px 12px 16px 20px;
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.glossary-nav-item {
    padding: 8px 10px;
    font-size: 13px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius);
    transition: color var(--duration) var(--ease-out),
        background var(--duration) var(--ease-out);
}

@media (hover: hover) {
    .glossary-nav-item:hover {
        color: var(--text-primary);
        background: var(--bg-card-hover);
    }
}

.glossary-nav-item--active {
    color: var(--blue);
    font-weight: 600;
    background: var(--blue-dim);
}

@media (hover: hover) {
    .glossary-nav-item--active:hover {
        color: var(--blue);
        background: var(--blue-dim);
    }
}

.glossary-nav-item--selecting,
.glossary-nav-item--selecting:hover {
    color: var(--blue);
    font-weight: 600;
    background: var(--blue-dim);
}

.glossary-body {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
    padding: 16px 20px 24px;
}

.glossary-section-group {
    margin-bottom: 28px;
}

.glossary-section-group:last-child {
    margin-bottom: 0;
}

.glossary-section-group--hidden {
    display: none;
}

.glossary-section {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin: 0 0 12px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border);
}

.glossary-section-group:not(:first-child) .glossary-section {
    margin-top: 0;
}

.glossary-entry {
    margin-bottom: 14px;
}

.glossary-entry--hidden {
    display: none;
}

.glossary-term {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.glossary-def {
    font-size: 12px;
    line-height: 1.55;
    color: var(--text-secondary);
    margin: 0;
}

.glossary-def code {
    font-size: 11px;
    font-family: var(--font-mono);
    padding: 2px 5px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
}

.glossary-no-results {
    padding: 24px;
    font-size: 14px;
    color: var(--text-muted);
    text-align: center;
}

@media (max-width: 1000px) {
    .glossary-dialog {
        width: 100%;
        max-width: calc(100vw - 24px);
        max-height: 85dvh;
        max-height: 85vh;
        /* Fallback for browsers without dvh support */
        margin: 12px;
    }

    .glossary-content {
        flex-direction: column;
    }

    .glossary-nav {
        width: 100%;
        flex-direction: row;
        flex-wrap: wrap;
        padding: 12px 16px;
        border-right: none;
        border-bottom: 1px solid var(--border);
        gap: 4px;
    }

    .glossary-nav-item {
        padding: 6px 10px;
        font-size: 12px;
    }
}

/* ─── Welcome Dialog ─── */
.welcome-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(1, 4, 9, 0.85);
    backdrop-filter: blur(6px);
    animation: welcome-fade-in 0.35s ease;
}

.welcome-overlay[hidden] {
    display: none;
}

.welcome-overlay--closing {
    animation: welcome-fade-out 0.3s ease forwards;
}

@keyframes welcome-fade-in {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes welcome-fade-out {
    from {
        opacity: 1;
    }

    to {
        opacity: 0;
    }
}

.welcome-dialog {
    background: var(--bg-sidebar);
    border: 1px solid var(--border);
    border-radius: 12px;
    width: 520px;
    max-width: calc(100vw - 40px);
    max-height: calc(100dvh - 80px);
    max-height: calc(100vh - 80px);
    /* Fallback for browsers without dvh support */
    display: flex;
    flex-direction: column;
    box-shadow:
        0 24px 64px rgba(0, 0, 0, 0.5),
        0 8px 24px rgba(0, 0, 0, 0.3);
    animation: welcome-dialog-in 0.4s var(--ease-out);
    overflow: hidden;
}

@keyframes welcome-dialog-in {
    from {
        opacity: 0;
        transform: translateY(16px) scale(0.97);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.welcome-steps {
    padding: 32px 32px 20px;
    flex: 1;
    min-height: 0;
}

/* Individual steps */
.welcome-step {
    animation: welcome-step-in 0.3s var(--ease-out);
}

.welcome-step[hidden] {
    display: none;
}

@keyframes welcome-step-in {
    from {
        opacity: 0;
        transform: translateX(20px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Hero (step 1) */
.welcome-hero {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 20px;
}

.welcome-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
}

.welcome-heading {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.welcome-text {
    font-size: 14px;
    line-height: 1.65;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.welcome-text--muted {
    color: var(--text-secondary);
    font-size: 13px;
}

.welcome-text code {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 1px 6px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--blue);
}

.welcome-text kbd {
    display: inline-block;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-bottom-width: 2px;
    padding: 1px 7px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Lane cards (step 2) */
.welcome-lanes {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.welcome-lane-card {
    display: flex;
    gap: 12px;
    padding: 12px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-left-width: 4px;
    border-radius: var(--radius);
}

.welcome-card-blue {
    border-left-color: var(--blue);
    background: rgba(56, 139, 253, 0.08);
}

.welcome-card-red {
    border-left-color: var(--red);
    background: rgba(248, 81, 73, 0.08);
}

.welcome-card-green {
    border-left-color: var(--green);
    background: rgba(63, 185, 80, 0.08);
}

[data-theme="light"] .welcome-card-blue {
    background: rgba(9, 105, 218, 0.08);
}

[data-theme="light"] .welcome-card-red {
    background: rgba(207, 34, 46, 0.06);
}

[data-theme="light"] .welcome-card-green {
    background: rgba(26, 127, 55, 0.08);
}

.welcome-lane-card strong {
    font-size: 13px;
    color: var(--text-primary);
    display: block;
    margin-bottom: 3px;
}

.welcome-lane-card p {
    font-size: 12px;
    line-height: 1.55;
    color: var(--text-secondary);
    margin: 0;
}

.welcome-lane-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 3px;
}

/* Rules (step 3) */
.welcome-rules {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.welcome-rule {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 10px 12px 10px 10px;
    border-radius: var(--radius);
    border-left: 4px solid transparent;
}

.welcome-rule-blue {
    border-left-color: var(--blue);
    background: rgba(56, 139, 253, 0.06);
}

.welcome-rule-green {
    border-left-color: var(--green);
    background: rgba(63, 185, 80, 0.06);
}

.welcome-rule-yellow {
    border-left-color: var(--yellow);
    background: rgba(210, 153, 34, 0.08);
}

.welcome-rule-red {
    border-left-color: var(--red);
    background: rgba(248, 81, 73, 0.06);
}

.welcome-rule-purple {
    border-left-color: var(--purple);
    background: rgba(163, 113, 247, 0.08);
}

[data-theme="light"] .welcome-rule-blue {
    background: rgba(9, 105, 218, 0.06);
}

[data-theme="light"] .welcome-rule-green {
    background: rgba(26, 127, 55, 0.06);
}

[data-theme="light"] .welcome-rule-yellow {
    background: rgba(154, 103, 0, 0.08);
}

[data-theme="light"] .welcome-rule-red {
    background: rgba(207, 34, 46, 0.05);
}

[data-theme="light"] .welcome-rule-purple {
    background: rgba(130, 80, 223, 0.08);
}

.welcome-rule-num {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--blue-dim);
    color: var(--blue);
    font-size: 12px;
    font-weight: 700;
    font-family: var(--font-mono);
    flex-shrink: 0;
}

.welcome-rule p {
    font-size: 13px;
    line-height: 1.55;
    color: var(--text-secondary);
    margin: 0;
    padding-top: 2px;
}

/* Callout (step 4) */
.welcome-callout {
    display: flex;
    gap: 12px;
    padding: 14px 16px;
    background: var(--blue-dim);
    border: 1px solid rgba(56, 139, 253, 0.2);
    border-left: 4px solid var(--blue);
    border-radius: var(--radius);
    margin-top: 8px;
}

.welcome-callout-icon {
    font-size: 20px;
    flex-shrink: 0;
    line-height: 1;
}

.welcome-callout strong {
    color: var(--text-primary);
}

.welcome-callout div {
    font-size: 12px;
    line-height: 1.55;
    color: var(--text-secondary);
}

.welcome-presets-section {
    max-height: 220px;
    overflow-y: auto;
    margin-top: 12px;
}

.welcome-subheading {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 6px;
}

.welcome-presets-section .presets {
    margin-top: 8px;
}

/* Footer */
.welcome-footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    padding: 16px 32px;
    border-top: 1px solid var(--border);
    background: var(--bg-body);
}

.welcome-dots {
    display: flex;
    gap: 8px;
}

.welcome-dot-btn {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    border: none;
    background: var(--border);
    cursor: pointer;
    padding: 0;
    transition: all var(--duration) var(--ease-out);
    touch-action: manipulation;
}

.welcome-dot-btn--active {
    background: var(--blue);
    transform: scale(1.3);
}

@media (hover: hover) {
    .welcome-dot-btn:hover:not(.welcome-dot-btn--active) {
        background: var(--text-muted);
    }
}

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

.welcome-actions .theme-toggle {
    width: 40px;
    height: 40px;
    min-width: 40px;
    min-height: 40px;
}

.welcome-actions .btn {
    padding: 10px 18px;
    font-size: 14px;
    min-height: 40px;
}

.welcome-skip {
    font-size: 14px;
}

.welcome-next {
    min-width: 110px;
    justify-content: center;
    text-align: center;
}

/* ─── Cost Panel ─── */
.summary-trigger-btn {
    align-self: center;
    padding: 6px 14px;
    font-size: 12px;
    font-weight: 500;
    font-family: var(--font-sans);
    color: var(--blue);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--duration) var(--ease-out);
}

@media (hover: hover) {
    .summary-trigger-btn:hover {
        background: var(--bg-card-hover);
        border-color: var(--blue);
        color: var(--blue);
    }
}

.cost-trigger-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    padding: 4px 10px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--duration) var(--ease-out);
    color: var(--text-secondary);
}

@media (hover: hover) {
    .cost-trigger-btn:hover {
        background: var(--bg-card-hover);
        border-color: var(--text-muted);
        color: var(--text-primary);
    }
}

.cost-trigger-icon {
    font-size: 15px;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--green-bright);
    line-height: 1;
}

.cost-trigger-label {
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
}

.cost-panel-input-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
}

.cost-panel-input-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    flex-shrink: 0;
}

.cost-panel-input-wrap {
    display: flex;
    align-items: center;
    gap: 0;
    flex: 1;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: border-color var(--duration) var(--ease-out);
}

.cost-panel-input-wrap:focus-within {
    border-color: var(--blue);
}

.cost-panel-input-prefix,
.cost-panel-input-suffix {
    font-size: 12px;
    font-family: var(--font-mono);
    color: var(--text-muted);
    padding: 6px 8px;
    flex-shrink: 0;
    user-select: none;
}

.cost-panel-input-prefix {
    padding-right: 2px;
    color: var(--green-bright);
    font-weight: 600;
}

.cost-panel-input-prefix--muted {
    color: var(--text-muted);
}

.cost-panel-input-suffix {
    padding-left: 2px;
}

.cost-panel-input {
    flex: 1;
    min-width: 0;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 13px;
    font-family: var(--font-mono);
    font-weight: 600;
    padding: 6px 4px;
    text-align: right;
}

/* Remove number input spinners */
.cost-panel-input::-webkit-outer-spin-button,
.cost-panel-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.cost-panel-input[type="number"] {
    -moz-appearance: textfield;
}

.cost-panel-computed {
    padding: 8px 14px;
    background: var(--bg-body);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.cost-panel-computed-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.cost-panel-computed-label {
    font-size: 11px;
    color: var(--text-muted);
}

.cost-panel-computed-value {
    font-size: 12px;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

.cost-panel-hint {
    padding: 8px 14px 10px;
    font-size: 10px;
    line-height: 1.5;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
}

/* Mobile utility classes */
.mobile-only {
    display: none;
}

/* ─── Responsive tweaks ─── */
@media (max-width: 1650px) {
    .stat--compact-hide {
        display: none;
    }
}

@media (max-width: 1400px) {
    .stat--narrow-hide {
        display: none;
    }
}

@media (max-width: 1150px) {
    :root {
        --sidebar-width: 340px;
    }

    .stat--small-hide {
        display: none;
    }

    .stat-label {
        font-size: 8px;
    }

    .stat-value {
        font-size: 12px;
    }

    .stat-divider {
        height: 20px;
    }

    .topbar-right {
        gap: 8px;
    }
}

@media (max-width: 1000px) {
    .app {
        grid-template-columns: 1fr;
    }

    .mobile-only {
        display: flex;
    }

    /* Mobile topbar: sleek layout with title */
    .topbar {
        flex-wrap: nowrap;
        padding: 0 12px;
        gap: 12px;
        min-height: var(--topbar-height);
        height: auto;
    }

    .topbar-mobile-header {
        flex: 1;
        min-width: 0;
        align-items: center;
        gap: 10px;
    }

    .topbar-menu-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        padding: 0;
        margin: 0 -6px 0 0;
        border: none;
        background: transparent;
        color: var(--text-secondary);
        border-radius: var(--radius);
        cursor: pointer;
        transition: color var(--duration) var(--ease-out), background var(--duration) var(--ease-out);
    }

    @media (hover: hover) {
        .topbar-menu-btn:hover {
            color: var(--text-primary);
            background: var(--bg-card);
        }
    }

    .topbar-menu-btn svg {
        flex-shrink: 0;
    }

    .topbar-mobile-logo {
        opacity: 0.9;
        flex-shrink: 0;
    }

    .topbar-mobile-title {
        font-size: 16px;
        font-weight: 600;
        color: var(--text-primary);
        margin: 0;
        letter-spacing: -0.02em;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .topbar-center {
        gap: 6px;
    }

    .topbar-center .btn {
        padding: 8px 10px;
        min-width: 40px;
    }

    .topbar-center .btn:not(.btn-icon-only) {
        padding: 8px 12px;
    }

    #btn-start {
        min-width: 100px;
    }

    .topbar-instant-label {
        display: none;
    }

    .topbar-center .btn-icon-only,
    #btn-instant {
        padding: 8px 10px;
        justify-content: center;
    }

    .topbar-right {
        display: none;
    }

    .mobile-only.control-group {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    #btn-step-mode-sidebar,
    #btn-speed-sidebar {
        padding-top: 14px;
        padding-bottom: 14px;
    }

    .sidebar-footer {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .sidebar-footer .sidebar-help-btn {
        margin: 0;
    }

    .sidebar-footer-links .sidebar-link:first-child {
        display: none;
    }

    .sponsor-btn {
        justify-content: flex-start;
    }

    .sidebar-header-github {
        display: inline-flex !important;
        align-items: center;
        justify-content: center;
        width: 30px;
        height: 30px;
        border: 1px solid var(--border);
        border-radius: var(--radius);
        background: var(--bg-card);
    }

    .topbar-mobile-hide {
        display: none !important;
    }

    .sidebar {
        position: fixed;
        top: 0;
        bottom: 0;
        left: 0;
        width: min(85vw, 400px);
        z-index: 900;
        transform: translateX(-100%);
        transition: transform 0.3s var(--ease-out);
        box-shadow: none;
        border-right: 1px solid var(--border);
        /* Account for safe area on iOS */
        padding-bottom: env(safe-area-inset-bottom);
    }

    .sidebar.sidebar--open {
        transform: translateX(0);
        box-shadow: 4px 0 24px rgba(0, 0, 0, 0.4);
    }

    .sidebar-backdrop {
        position: fixed;
        inset: 0;
        z-index: 899;
        background: rgba(0, 0, 0, 0.5);
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s var(--ease-out), visibility 0.3s var(--ease-out);
    }

    .sidebar-backdrop.sidebar-backdrop--visible {
        opacity: 1;
        visibility: visible;
    }

    .sidebar-backdrop[hidden] {
        display: none !important;
    }

    .sidebar-divider.mobile-only {
        display: block;
    }

    .sidebar-close {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 30px;
        height: 30px;
        padding: 0;
        font-size: 14px;
        color: var(--text-muted);
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        cursor: pointer;
        transition: color var(--duration) var(--ease-out);
    }

    @media (hover: hover) {
        .sidebar-close:hover {
            color: var(--text-primary);
        }
    }

    /* Step banner: more in-your-face on mobile */
    .step-banner {
        padding: 20px 16px 24px;
        border-top-width: 2px;
        box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.3);
    }

    .step-banner-inner {
        max-width: none;
        gap: 16px;
        flex-wrap: wrap;
    }

    .step-banner-icon {
        width: 48px;
        height: 48px;
        font-size: 24px;
    }

    .step-banner-title {
        font-size: 16px;
    }

    .step-banner-desc {
        font-size: 13px;
        white-space: normal;
        margin-top: 4px;
    }

    .step-banner-btn {
        width: 100%;
        min-height: 48px;
        padding: 12px 24px;
        font-size: 15px;
        justify-content: center;
    }

    .summary-close {
        min-width: 44px;
        min-height: 44px;
        padding: 12px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        font-size: 20px;
    }

    .welcome-dots {
        gap: 10px;
    }

    .welcome-dot-btn {
        width: 10px;
        height: 10px;
    }

    .welcome-dot-btn--active {
        transform: scale(1.2);
    }

}