/* Circuit Atlas: current-calendar technical surface. */

#circuits-view {
    min-height: 100%;
    padding-bottom: var(--space-12) !important;
    --atlas-rule: color-mix(in srgb, var(--pc-border) 82%, transparent);
    --atlas-rule-soft: color-mix(in srgb, var(--pc-border) 58%, transparent);
    --atlas-surface: color-mix(in srgb, var(--pc-bg) 88%, var(--pc-low));
    --atlas-surface-hot: color-mix(in srgb, var(--pc-mid) 48%, var(--pc-bg));
}

#circuits-view .dash-hero {
    margin-bottom: var(--space-5);
}

#circuits-view .hero-titles p {
    max-width: 760px;
}

.circuits-layout {
    display: grid !important;
    grid-template-columns: minmax(292px, 352px) minmax(0, 1fr) !important;
    gap: clamp(var(--space-5), 2vw, var(--space-8));
    align-items: start;
    margin-top: 0;
}

#circuits-view .panel {
    min-width: 0;
    padding: 0;
    background: transparent;
    border: 0;
}

#circuits-view .panel-header,
#circuits-view .panel-header.border-bottom {
    min-height: 50px;
    padding: 0 0 var(--space-3);
    margin: 0;
    border-bottom: 1px solid var(--atlas-rule);
}

#circuits-view .panel-title-cluster,
#circuits-view .atlas-header .flex-start {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

#circuits-view .panel-glyph {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 30px;
    font: 700 0.68rem/1 var(--font-f1);
    letter-spacing: 0.08em;
    color: var(--pc-primary);
    border: 1px solid color-mix(in srgb, var(--pc-primary) 46%, var(--pc-border));
    background: color-mix(in srgb, var(--pc-primary) 10%, transparent);
}

.circuit-list-panel {
    position: sticky;
    top: var(--space-5);
    max-height: calc(100vh - 72px);
    padding: var(--space-5);
    border: 1px solid var(--atlas-rule);
    background: var(--atlas-surface);
    overflow: hidden;
}

.circuit-list {
    max-height: calc(100vh - 172px);
    overflow-y: auto;
    padding: 0;
    display: flex;
    flex-direction: column;
}

.circuit-item {
    min-height: 58px;
    padding: 0 var(--space-3);
    background: transparent;
    border: 1px solid transparent;
    border-bottom-color: var(--atlas-rule-soft);
    cursor: pointer;
    transition: background var(--trans-fast), border-color var(--trans-fast), color var(--trans-fast);
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr);
    align-items: center;
    gap: var(--space-3);
}

.circuit-item:hover,
.circuit-item:focus-visible {
    background: var(--atlas-surface-hot);
    outline: none;
}

.circuit-item.active {
    background: color-mix(in srgb, var(--pc-primary) 8%, var(--atlas-surface));
    border-color: color-mix(in srgb, var(--pc-primary) 44%, var(--pc-border));
}

.circuit-item .gp-round {
    font: 700 0.78rem/1 var(--font-f1);
    color: var(--pc-on-surface-muted);
}

.circuit-item.active .gp-round {
    color: var(--pc-primary);
}

.circuit-item .gp-copy {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.circuit-item .gp-name {
    overflow: hidden;
    color: var(--pc-on-surface);
    font: 700 0.82rem/1.2 var(--font-main);
    text-overflow: ellipsis;
    text-transform: uppercase;
    white-space: nowrap;
}

.circuit-item .gp-meta {
    overflow: hidden;
    color: var(--pc-on-surface-muted);
    font: 700 0.64rem/1.25 var(--font-main);
    letter-spacing: 0.08em;
    text-overflow: ellipsis;
    text-transform: uppercase;
    white-space: nowrap;
}

.atlas-viewer-panel {
    border: 1px solid var(--atlas-rule);
    background: color-mix(in srgb, var(--pc-bg) 88%, var(--pc-low));
}

.atlas-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: var(--space-4);
    align-items: end;
    padding: var(--space-5) var(--space-5) var(--space-4);
}

.atlas-header h3 {
    overflow: hidden;
    font-size: clamp(1.32rem, 2vw, 2rem);
    letter-spacing: 0.03em;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.atlas-official-name,
.atlas-location {
    grid-column: 1 / -1;
    margin: 0;
}

.atlas-official-name {
    overflow: hidden;
    color: var(--pc-primary);
    font: 700 0.7rem/1.2 var(--font-main);
    letter-spacing: 0.12em;
    text-overflow: ellipsis;
    text-transform: uppercase;
    white-space: nowrap;
}

.atlas-location {
    color: var(--pc-on-surface-muted);
    font: 700 0.68rem/1.2 var(--font-main);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.atlas-content {
    display: grid;
    grid-template-rows: auto auto;
}

.map-container {
    width: 100%;
    height: clamp(460px, 50vh, 640px);
    background: color-mix(in srgb, var(--pc-bg) 94%, var(--pc-low));
    border-bottom: 1px solid var(--atlas-rule);
    position: relative;
    overflow: hidden;
}

.map-container::after {
    content: none;
}

#circuit-atlas-canvas {
    display: block;
    width: 100%;
    height: 100%;
}

#circuits-view .circuit-stats-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
    align-items: stretch;
}

#circuits-view .stats-column {
    display: grid;
    grid-template-rows: auto 1fr;
    border-right: 1px solid var(--atlas-rule);
}

#circuits-view .stat-card {
    min-height: 0;
    padding: clamp(var(--space-5), 2vw, var(--space-6));
    background: transparent;
    border: 0;
}

#circuits-view .stat-card + .stat-card {
    border-top: 1px solid var(--atlas-rule);
}

#circuits-view .hall-panel {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

#circuits-view .stat-card label {
    display: block;
    margin-bottom: var(--space-4);
    color: var(--pc-on-surface);
    font: 700 0.78rem/1.2 var(--font-main);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

#circuits-view .specs-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: 1px solid var(--atlas-rule-soft);
    border-left: 1px solid var(--atlas-rule-soft);
}

#circuits-view .spec-item {
    min-height: 82px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3);
    border-right: 1px solid var(--atlas-rule-soft);
    border-bottom: 1px solid var(--atlas-rule-soft);
}

#circuits-view .spec-label {
    color: var(--pc-on-surface-muted);
    font: 700 0.62rem/1.2 var(--font-main);
    letter-spacing: 0.11em;
    text-transform: uppercase;
}

#circuits-view .spec-value {
    overflow: hidden;
    color: var(--pc-on-surface);
    font: 700 0.98rem/1.18 var(--font-f1);
    text-overflow: ellipsis;
}

#circuits-view .spec-sub {
    display: block;
    margin-top: 3px;
    color: var(--pc-on-surface-muted);
    font: 700 0.62rem/1.2 var(--font-main);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

#circuits-view .atlas-source-note {
    margin: var(--space-4) 0 0;
    color: var(--pc-on-surface-muted);
    font: 600 0.78rem/1.5 var(--font-main);
}

#circuits-view .severity-container {
    margin-top: 0;
}

#circuits-view .severity-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: var(--space-4);
    margin-bottom: var(--space-3);
}

#circuits-view .status-label,
#circuits-view .gauge-scale span {
    color: var(--pc-on-surface-muted);
    font: 700 0.62rem/1.2 var(--font-main);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

#circuits-view .gauge-value {
    color: var(--pc-on-surface);
    font: 700 1.16rem/1 var(--font-f1);
}

#circuits-view .severity-gauge {
    height: 10px;
    overflow: hidden;
    background: color-mix(in srgb, var(--pc-bg) 72%, var(--pc-low));
    border: 1px solid var(--atlas-rule);
}

#circuits-view .gauge-fill {
    height: 100%;
    width: 0%;
    background: var(--pc-primary);
    transition: width 0.35s cubic-bezier(0.2, 0, 0, 1), background var(--trans-fast);
}

#circuits-view .gauge-scale {
    display: flex;
    justify-content: space-between;
    margin-top: var(--space-2);
}

#circuit-strategy-impact {
    margin-top: var(--space-5);
    padding-top: var(--space-4);
    color: var(--pc-on-surface-variant);
    font: 600 0.9rem/1.55 var(--font-main);
    border-top: 1px solid var(--atlas-rule-soft);
    transition: opacity var(--trans-fast);
}

#circuits-view .winners-list {
    flex: 1;
    min-height: 0;
    max-height: 480px;
    overflow-y: auto;
    border-top: 1px solid var(--atlas-rule-soft);
}

#circuits-view .winner-item {
    min-height: 54px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-4);
    padding: 0 var(--space-1);
    background: transparent;
    border-bottom: 1px solid var(--atlas-rule-soft);
    transition: background var(--trans-fast);
}

#circuits-view .winner-item:hover {
    background: var(--atlas-surface-hot);
}

#circuits-view .winner-item .win-meta {
    min-width: 0;
    display: flex;
    align-items: baseline;
    gap: var(--space-3);
}

#circuits-view .winner-item .win-year {
    flex: 0 0 42px;
    color: var(--pc-primary);
    font: 700 0.72rem/1 var(--font-f1);
}

#circuits-view .winner-item .win-driver {
    overflow: hidden;
    color: var(--pc-on-surface);
    font: 700 0.82rem/1.2 var(--font-main);
    text-overflow: ellipsis;
    text-transform: uppercase;
    white-space: nowrap;
}

#circuits-view .winner-item .win-team {
    color: var(--pc-on-surface-muted);
    font: 700 0.62rem/1.2 var(--font-main);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    white-space: nowrap;
}

#circuits-view .winner-item--empty {
    justify-content: flex-start;
    color: var(--pc-on-surface-muted);
}

.circuit-list::-webkit-scrollbar,
#circuits-view .winners-list::-webkit-scrollbar {
    width: 4px;
}

.circuit-list::-webkit-scrollbar-track,
#circuits-view .winners-list::-webkit-scrollbar-track {
    background: transparent;
}

.circuit-list::-webkit-scrollbar-thumb,
#circuits-view .winners-list::-webkit-scrollbar-thumb {
    background: var(--pc-border-strong);
    border-radius: 0;
}

@media (max-width: 1180px) {
    .circuits-layout,
    #circuits-view .circuit-stats-grid {
        grid-template-columns: 1fr !important;
    }

    .circuit-list-panel {
        position: static;
        max-height: none;
    }

    .circuit-list {
        max-height: 360px;
    }

    #circuits-view .stats-column {
        border-right: 0;
        border-bottom: 1px solid var(--atlas-rule);
    }

    #circuits-view .hall-panel {
        min-height: 360px;
    }
}

@media (max-width: 760px) {
    .circuits-layout {
        gap: var(--space-5);
    }

    .circuit-list-panel,
    .atlas-header,
    #circuits-view .stat-card {
        padding: var(--space-4);
    }

    .atlas-header {
        grid-template-columns: 1fr;
    }

    .atlas-header h3,
    .atlas-official-name {
        white-space: normal;
    }

    .map-container {
        height: 420px;
    }

    .map-container::after {
        inset: var(--space-3);
    }

    #circuits-view .specs-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    #circuits-view .winner-item {
        align-items: flex-start;
        flex-direction: column;
        justify-content: center;
        gap: var(--space-1);
        padding: var(--space-3) 0;
    }
}

@media (max-width: 520px) {
    .circuit-item {
        grid-template-columns: 34px minmax(0, 1fr);
    }

    #circuits-view .specs-grid {
        grid-template-columns: 1fr;
    }
}