/* ============================================================
   3S-GTE 0D Engine Simulator — écran principal
   Interface d'instrumentation automobile / CAE
   ============================================================ */

.simulator-page {
    --sim-bg: #09080e;
    --sim-surface: #0f0e15;
    --sim-surface-raised: #14131b;
    --sim-viewport: #060609;
    --sim-border: rgba(224, 221, 235, 0.12);
    --sim-border-strong: rgba(224, 221, 235, 0.20);
    --sim-text: #eeedf2;
    --sim-text-secondary: #aaa7b2;
    --sim-text-muted: #73707c;
    --sim-accent: #8878b3;
    --sim-accent-strong: #9b8bc8;
    --sim-accent-dim: rgba(136, 120, 179, 0.16);
    --sim-amber: #c89a57;
    --sim-red: #c45f66;
    --sim-green: #7d9c89;
    min-height: calc(100vh - 64px);
    background: var(--sim-bg);
    color: var(--sim-text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.simulator-page *,
.simulator-page *::before,
.simulator-page *::after {
    box-sizing: border-box;
}

.simulator-shell {
    width: min(100%, 1920px);
    height: calc(100vh - 64px);
    min-height: 700px;
    margin: 0 auto;
    padding: 10px 14px 14px;
    display: grid;
    grid-template-rows: 50px minmax(0, 1fr);
    gap: 10px;
}

/* ── En-tête logiciel ─────────────────────────────────────── */

.simulator-header {
    min-width: 0;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto auto;
    align-items: center;
    gap: 16px;
    padding: 0 14px;
    border: 1px solid var(--sim-border);
    border-radius: 4px;
    background: var(--sim-surface);
}

.simulator-header-main {
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 18px;
}

.simulator-identity {
    min-width: 0;
    display: flex;
    align-items: baseline;
    gap: 12px;
}

.simulator-identity h1 {
    margin: 0;
    color: var(--sim-text);
    font-size: 0.94rem;
    font-weight: 650;
    letter-spacing: -0.01em;
    white-space: nowrap;
}

.simulator-identity p {
    margin: 0;
    color: var(--sim-text-muted);
    font-size: 0.74rem;
    white-space: nowrap;
}

.viewer-context {
    min-width: 0;
    padding-left: 18px;
    border-left: 1px solid var(--sim-border);
}

.viewer-context h2 {
    margin: 0;
    color: var(--sim-text);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    white-space: nowrap;
}

.viewer-context p {
    margin: 2px 0 0;
    color: var(--sim-text-muted);
    font-size: 0.62rem;
    white-space: nowrap;
}

.simulator-header-status {
    margin: 0;
    display: flex;
    align-self: stretch;
}

.header-status-item {
    min-width: 116px;
    margin: 0;
    padding: 8px 14px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    border-left: 1px solid var(--sim-border);
}

.header-status-item dt {
    margin: 0 0 2px;
    color: var(--sim-text-muted);
    font-size: 0.63rem;
    font-weight: 500;
}

.header-status-item dd {
    margin: 0;
    color: var(--sim-text);
    font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
    font-size: 0.76rem;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.header-status-item--engine dd {
    display: flex;
    align-items: center;
    gap: 7px;
}

.header-status-item--rpm {
    min-width: 132px;
}

.engine-state-marker {
    width: 3px;
    height: 18px;
    display: inline-block;
    background: var(--sim-text-muted);
}

.engine-state-marker[data-state="cranking"] {
    background: var(--sim-amber);
}

.engine-state-marker[data-state="running"] {
    background: var(--sim-green);
}

.engine-state-marker[data-state="stopping"],
.engine-state-marker[data-state="stalled"] {
    background: var(--sim-red);
}

/* ── Composition principale ───────────────────────────────── */

.simulator-workspace {
    min-width: 0;
    min-height: 0;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 304px;
    gap: 10px;
}

.simulator-viewer,
.instrument-panel {
    min-width: 0;
    min-height: 0;
    border: 1px solid var(--sim-border);
    border-radius: 4px;
    background: var(--sim-surface);
    overflow: hidden;
}

.simulator-viewer {
    display: grid;
    grid-template-rows: minmax(0, 1fr) 86px;
}

.instrument-header h2,
.cylinder-summary h3 {
    margin: 0;
    color: var(--sim-text);
    font-family: Inter, ui-sans-serif, system-ui, sans-serif;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.instrument-header h2 {
    font-size: 0.82rem;
}

.instrument-header p {
    margin: 2px 0 0;
    color: var(--sim-text-muted);
    font-size: 0.64rem;
}

.viewer-method-data {
    min-width: 0;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0;
    color: var(--sim-text-muted);
    font-size: 0.61rem;
    white-space: nowrap;
}

.simulator-header-method {
    align-self: stretch;
}

.viewer-method-data > * {
    padding: 0 9px;
    border-left: 1px solid var(--sim-border);
}

.viewer-method-data > :first-child {
    border-left: 0;
}

.viewer-method-data a {
    color: var(--sim-accent-strong);
    text-decoration: none;
}

.viewer-method-data a:hover {
    text-decoration: underline;
    text-underline-offset: 3px;
}

/* ── Viewer Three.js ──────────────────────────────────────── */

.simulator-viewport {
    position: relative;
    min-width: 0;
    min-height: 0;
    background: var(--sim-viewport);
    overflow: hidden;
}

#engineViewerCanvas {
    display: block;
    width: 100%;
    height: 100%;
    cursor: grab;
    touch-action: none;
    outline: 0;
}

#engineViewerCanvas:active {
    cursor: grabbing;
}

.viewport-help {
    position: absolute;
    right: 10px;
    bottom: 8px;
    margin: 0;
    color: rgba(214, 211, 222, 0.44);
    font-size: 0.61rem;
    pointer-events: none;
}

/* ── Barre de commande intégrée ───────────────────────────── */

.viewer-commandbar {
    min-width: 0;
    display: grid;
    grid-template-columns: 152px minmax(195px, 0.8fr) minmax(215px, 1fr) auto auto;
    align-items: center;
    gap: 8px;
    padding: 10px;
    border-top: 1px solid var(--sim-border);
    background: var(--sim-surface-raised);
}

.command-button,
.command-link {
    min-height: 38px;
    border: 1px solid var(--sim-border-strong);
    border-radius: 3px;
    background: #111018;
    color: var(--sim-text-secondary);
    font-family: Inter, ui-sans-serif, system-ui, sans-serif;
    font-size: 0.72rem;
    font-weight: 600;
    line-height: 1;
    text-decoration: none;
    cursor: pointer;
    transition: border-color 120ms ease, background-color 120ms ease, color 120ms ease;
}

.command-button:hover,
.command-link:hover {
    border-color: rgba(155, 139, 200, 0.52);
    color: var(--sim-text);
    background: #17151f;
}

.command-button:focus-visible,
.command-link:focus-visible {
    outline: 2px solid var(--sim-accent);
    outline-offset: 2px;
}

.command-button--engine {
    padding: 0 13px;
    text-align: left;
    border-left: 3px solid var(--sim-accent);
    color: var(--sim-text);
}

.command-button--engine[data-state="running"] {
    border-color: rgba(196, 95, 102, 0.50);
    border-left-color: var(--sim-red);
    color: #e8b8bb;
}

.command-button--engine[data-state="cranking"] {
    border-left-color: var(--sim-amber);
}

.command-button--engine:disabled {
    opacity: 0.55;
    cursor: wait;
}

.command-button--throttle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 0 14px;
    border-color: rgba(136, 120, 179, 0.62);
    background: #1b1824;
    color: var(--sim-text);
}

.command-button--throttle small {
    color: #aaa3bc;
    font-size: 0.61rem;
    font-weight: 500;
}

.command-button--throttle:hover,
.command-button--throttle.is-active {
    border-color: var(--sim-accent-strong);
    background: #2a2438;
}

.throttle-command {
    min-width: 0;
    padding: 2px 4px;
}

.throttle-command__header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 8px;
}

.throttle-command__header span {
    color: var(--sim-text-muted);
    font-size: 0.66rem;
}

.throttle-command__header strong {
    color: var(--sim-text);
    font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
    font-size: 0.78rem;
    font-variant-numeric: tabular-nums;
}

.throttle-track,
.rpm-track {
    position: relative;
    height: 4px;
    background: rgba(238, 237, 242, 0.11);
    overflow: hidden;
}

.throttle-track span,
.rpm-track span {
    display: block;
    width: 0;
    height: 100%;
    background: var(--sim-accent);
    transition: width 90ms linear;
}

.viewer-mode-group,
.viewer-utility-group {
    display: flex;
    align-items: center;
    gap: 5px;
}

.command-button--compact,
.command-button--utility,
.command-link {
    min-height: 32px;
    padding: 0 10px;
    white-space: nowrap;
}

.command-button--compact[data-active="true"],
.command-button--compact[aria-pressed="true"] {
    border-color: var(--sim-accent);
    background: var(--sim-accent-dim);
    color: #ddd7eb;
}

.command-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--sim-accent-strong);
}

/* ── Instrumentation droite ───────────────────────────────── */

.instrument-panel {
    display: flex;
    flex-direction: column;
    padding: 0 14px;
}

.instrument-header {
    min-height: 58px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    border-bottom: 1px solid var(--sim-border);
}

.limiter-state {
    color: var(--sim-text-muted);
    font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
    font-size: 0.62rem;
    white-space: nowrap;
}

.limiter-state.is-active {
    color: var(--sim-red);
    font-weight: 700;
}

.rpm-instrument {
    padding: 20px 0 18px;
    border-bottom: 1px solid var(--sim-border);
}

.measure-label {
    display: block;
    color: var(--sim-text-muted);
    font-size: 0.69rem;
    font-weight: 500;
}

.rpm-value {
    display: block;
    margin: 8px 0 18px;
    color: var(--sim-text);
    font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
    font-size: clamp(2.1rem, 3vw, 3.25rem);
    font-weight: 550;
    line-height: 0.95;
    letter-spacing: -0.055em;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.rpm-track {
    height: 5px;
}

.rpm-scale {
    display: flex;
    justify-content: space-between;
    margin-top: 7px;
    color: var(--sim-text-muted);
    font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
    font-size: 0.52rem;
    font-variant-numeric: tabular-nums;
}

.instrument-pair {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-bottom: 1px solid var(--sim-border);
}

.measure-block {
    min-width: 0;
    padding: 15px 0 16px;
}

.measure-block + .measure-block {
    padding-left: 14px;
    border-left: 1px solid var(--sim-border);
}

.measure-block strong {
    display: block;
    margin-top: 7px;
    color: var(--sim-text);
    font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
    font-size: 1.06rem;
    font-weight: 550;
    letter-spacing: -0.025em;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.instrument-pair--thermal .measure-block strong {
    color: var(--sim-amber);
}

.cylinder-summary {
    margin-top: auto;
    padding: 16px 0 18px;
}

.cylinder-summary h3 {
    font-size: 0.76rem;
}

.cylinder-summary__heading p {
    margin: 4px 0 0;
    color: var(--sim-text-muted);
    font-size: 0.62rem;
    line-height: 1.4;
}

.cylinder-summary__data {
    margin: 14px 0 0;
}

.cylinder-summary__data > div {
    min-height: 34px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    border-top: 1px solid var(--sim-border);
}

.cylinder-summary__data dt {
    color: var(--sim-text-muted);
    font-size: 0.67rem;
}

.cylinder-summary__data dd {
    margin: 0;
    color: var(--sim-text);
    font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
    font-size: 0.72rem;
    font-variant-numeric: tabular-nums;
}

#cylinderBalanceStatus[data-state="warning"] {
    color: var(--sim-amber);
}

#cylinderBalanceStatus[data-state="critical"] {
    color: var(--sim-red);
}

/* ── Plein écran ──────────────────────────────────────────── */

.simulator-viewer:fullscreen {
    width: 100vw;
    height: 100vh;
    border: 0;
    border-radius: 0;
    grid-template-rows: minmax(0, 1fr) 86px;
    background: var(--sim-bg);
}

.simulator-viewer:fullscreen .simulator-viewport {
    min-height: 0;
}

/* Accessible, mais non visible. */
.simulator-sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* ── Adaptation écrans plus étroits ───────────────────────── */

@media (max-width: 1260px) {
    .simulator-workspace {
        grid-template-columns: minmax(0, 1fr) 280px;
    }

    .simulator-header-method {
        display: none;
    }

    .viewer-commandbar {
        grid-template-columns: 140px minmax(180px, 0.8fr) minmax(180px, 1fr) auto;
    }

    .viewer-utility-group {
        grid-column: 1 / -1;
        justify-content: flex-end;
        margin-top: -4px;
    }

    .simulator-viewer {
        grid-template-rows: minmax(0, 1fr) 118px;
    }
}

@media (max-width: 980px) {
    .simulator-shell {
        height: auto;
        min-height: calc(100vh - 64px);
    }

    .simulator-header {
        min-height: 58px;
        grid-template-columns: minmax(0, 1fr) auto;
    }

    .simulator-header-method,
    .simulator-identity p,
    .viewer-context p,
    .header-status-item:nth-child(2) {
        display: none;
    }

    .simulator-workspace {
        grid-template-columns: 1fr;
    }

    .simulator-viewer {
        min-height: 680px;
    }

    .instrument-panel {
        min-height: 560px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .simulator-page *,
    .simulator-page *::before,
    .simulator-page *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}