/*
 * Laboratorio de Gemelo Digital
 * Interfaz industrial para la experiencia de robótica educativa.
 */

:root {
    --lab-ink: #111512;
    --lab-ink-2: #181e1a;
    --lab-ink-3: #232b26;
    --lab-paper: #e8e2d4;
    --lab-paper-muted: #aca99f;
    --lab-orange: #ff6b2c;
    --lab-orange-dark: #c84613;
    --lab-teal: #7ed8ce;
    --lab-teal-dark: #174b46;
    --lab-yellow: #e5ba47;
    --lab-red: #e4543f;
    --lab-line: rgba(232, 226, 212, 0.14);
    --lab-line-strong: rgba(232, 226, 212, 0.28);
    --lab-shadow: 0 24px 60px rgba(0, 0, 0, 0.32);
    --lab-font-display: 'Barlow Condensed', sans-serif;
    --lab-font-body: 'IBM Plex Sans', sans-serif;
    --lab-font-mono: 'IBM Plex Mono', monospace;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    background: var(--lab-ink);
}

body {
    min-height: 100vh;
    margin: 0;
    padding: 74px 0 0;
    overflow-x: hidden;
    background: var(--lab-ink);
    color: var(--lab-paper);
    font-family: var(--lab-font-body);
}

button,
textarea,
input {
    font: inherit;
}

button {
    -webkit-tap-highlight-color: transparent;
}

[hidden] {
    display: none !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 3000;
    transform: translateY(-140%);
    padding: 0.7rem 1rem;
    background: var(--lab-paper);
    color: var(--lab-ink);
    font: 600 0.8rem var(--lab-font-mono);
    text-decoration: none;
}

.skip-link:focus {
    transform: translateY(0);
}

.animated-bg {
    position: fixed;
    inset: 0;
    z-index: -2;
    width: auto;
    height: auto;
    background:
        linear-gradient(90deg, transparent 0 49.8%, rgba(126, 216, 206, 0.025) 50%, transparent 50.2%),
        radial-gradient(circle at 85% 4%, rgba(255, 107, 44, 0.12), transparent 24rem),
        radial-gradient(circle at 12% 85%, rgba(126, 216, 206, 0.07), transparent 28rem),
        #111512;
}

.animated-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(232, 226, 212, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(232, 226, 212, 0.025) 1px, transparent 1px);
    background-size: 32px 32px;
    mask-image: linear-gradient(to bottom, black, transparent 86%);
}

.animated-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0.18;
    pointer-events: none;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.12'/%3E%3C/svg%3E");
}

/* Header / command bar */
.header {
    position: fixed;
    inset: 0 0 auto;
    z-index: 1000;
    height: 74px;
    padding: 0;
    border: 0;
    border-bottom: 1px solid var(--lab-line-strong);
    background: rgba(17, 21, 18, 0.96);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.24);
    backdrop-filter: blur(16px);
}

.header::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -1px;
    width: min(34vw, 520px);
    height: 2px;
    background: var(--lab-orange);
}

.navbar {
    display: grid;
    grid-template-columns: minmax(250px, 1fr) auto auto auto;
    align-items: center;
    gap: 1.5rem;
    width: min(100%, 1880px);
    height: 100%;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    width: max-content;
    color: var(--lab-paper);
    font-family: var(--lab-font-body);
    text-decoration: none;
    text-shadow: none;
}

.logo-mark {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--lab-orange);
    background: rgba(255, 107, 44, 0.08);
    color: var(--lab-orange);
    clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 9px 100%, 0 calc(100% - 9px));
}

.logo-copy {
    display: grid;
    gap: 0.05rem;
}

.logo-copy small,
.panel-kicker,
.eyebrow {
    color: var(--lab-orange);
    font: 600 0.64rem/1.2 var(--lab-font-mono);
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.logo-copy strong {
    font: 700 1.15rem/1 var(--lab-font-display);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.system-status {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    min-height: 32px;
    padding: 0.4rem 0.75rem;
    border: 1px solid var(--lab-line);
    background: rgba(232, 226, 212, 0.035);
    color: var(--lab-paper-muted);
    font: 500 0.66rem var(--lab-font-mono);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.system-status time {
    min-width: 66px;
    margin-left: 0.25rem;
    color: var(--lab-paper);
}

.status-light {
    display: inline-block;
    width: 7px;
    height: 7px;
    flex: 0 0 auto;
    border-radius: 50%;
    background: var(--lab-teal);
    box-shadow: 0 0 0 4px rgba(126, 216, 206, 0.1), 0 0 14px rgba(126, 216, 206, 0.65);
    animation: labPulse 2.2s ease-in-out infinite;
}

.navbar-actions {
    display: flex;
    align-items: center;
    justify-self: end;
    grid-column: 4;
    grid-row: 1;
    gap: 0.65rem;
}

body #lang-toggle {
    min-width: 48px;
    padding: 0.55rem 0.75rem;
    border: 1px solid var(--lab-line-strong);
    border-radius: 0;
    background: transparent;
    color: var(--lab-paper);
    box-shadow: none;
    font: 600 0.68rem var(--lab-font-mono);
}

body #lang-toggle:hover {
    border-color: var(--lab-orange);
    background: rgba(255, 107, 44, 0.08);
    box-shadow: none;
    color: var(--lab-orange);
}

.nav-menu {
    position: static;
    display: flex;
    align-items: center;
    justify-self: end;
    grid-column: 3;
    grid-row: 1;
    gap: 0.2rem;
    width: auto;
    height: auto;
    margin: 0;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
    list-style: none;
    transform: none;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.6rem 0.7rem;
    border: 1px solid transparent;
    border-radius: 0;
    color: var(--lab-paper-muted);
    font: 600 0.68rem var(--lab-font-mono);
    letter-spacing: 0.03em;
    text-decoration: none;
    text-transform: uppercase;
}

.nav-link::before {
    display: none;
}

.nav-link:hover,
.nav-link:focus-visible,
.nav-link.is-active {
    border-color: var(--lab-line);
    background: rgba(232, 226, 212, 0.045);
    color: var(--lab-orange);
    transform: none;
}

.nav-link i {
    margin: 0;
    font-size: 0.76rem;
}

.mobile-menu-btn,
.mobile-menu-overlay {
    display: none;
}

/* Compact briefing */
.page-header.lab-briefing {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 3rem;
    width: min(calc(100% - 3rem), 1820px);
    margin: 1.4rem auto 0;
    padding: 1.2rem 1.4rem;
    overflow: hidden;
    border: 1px solid var(--lab-line);
    border-radius: 0;
    background: rgba(24, 30, 26, 0.76);
    box-shadow: none;
    text-align: left;
    backdrop-filter: blur(12px);
}

.page-header.lab-briefing::before {
    content: '';
    position: absolute;
    inset: 0 auto 0 0;
    width: 4px;
    height: auto;
    background: var(--lab-orange);
}

.briefing-copy {
    display: grid;
    gap: 0.25rem;
}

.page-title {
    margin: 0;
    color: var(--lab-paper);
    font: 800 clamp(2rem, 3.2vw, 3.6rem)/0.92 var(--lab-font-display);
    letter-spacing: 0.01em;
    text-shadow: none;
    text-transform: uppercase;
}

.page-subtitle {
    max-width: 760px;
    margin: 0.35rem 0 0;
    color: var(--lab-paper-muted);
    font: 400 0.9rem/1.55 var(--lab-font-body);
}

.briefing-specs {
    display: flex;
    gap: 1.8rem;
    margin: 0;
}

.briefing-specs div {
    min-width: 112px;
    padding-left: 0.75rem;
    border-left: 1px solid var(--lab-line);
}

.briefing-specs dt {
    margin-bottom: 0.22rem;
    color: var(--lab-paper-muted);
    font: 500 0.58rem var(--lab-font-mono);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.briefing-specs dd {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    margin: 0;
    color: var(--lab-paper);
    font: 600 0.72rem var(--lab-font-mono);
}

/* Application layout */
.main-content {
    min-height: 0;
    margin: 0;
    border-radius: 0;
    background: transparent;
    backdrop-filter: none;
}

.container.lab-layout {
    display: grid;
    grid-template-columns: 245px minmax(500px, 1fr) 360px;
    align-items: stretch;
    gap: 0.9rem;
    width: min(calc(100% - 3rem), 1820px);
    max-width: none;
    margin: 0 auto;
    padding: 0.9rem 0 2rem;
}

.mission-rail,
.workbench,
.control-deck {
    min-width: 0;
    border: 1px solid var(--lab-line);
    background: rgba(24, 30, 26, 0.92);
    box-shadow: var(--lab-shadow);
}

.mission-rail,
.control-deck {
    height: clamp(610px, calc(100vh - 238px), 780px);
}

.mission-rail {
    display: flex;
    flex-direction: column;
    padding: 1rem;
}

.rail-heading,
.deck-header,
.workbench-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
}

.rail-heading {
    display: grid;
    gap: 0.2rem;
    padding: 0.2rem 0.2rem 0.95rem;
    border-bottom: 1px solid var(--lab-line);
}

.rail-heading strong {
    font: 700 1.25rem var(--lab-font-display);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.mode-switcher {
    display: grid;
    gap: 0.35rem;
    margin-top: 0.85rem;
}

.mode-button {
    display: grid;
    grid-template-columns: 30px 1fr auto;
    align-items: center;
    gap: 0.65rem;
    min-height: 58px;
    padding: 0.65rem;
    border: 1px solid transparent;
    background: transparent;
    color: var(--lab-paper-muted);
    text-align: left;
    cursor: pointer;
    transition: border-color 160ms ease, background 160ms ease, color 160ms ease;
}

.mode-button:hover,
.mode-button:focus-visible {
    border-color: var(--lab-line-strong);
    color: var(--lab-paper);
}

.mode-button.is-active {
    border-color: rgba(255, 107, 44, 0.46);
    background:
        linear-gradient(90deg, rgba(255, 107, 44, 0.14), transparent 80%),
        rgba(255, 255, 255, 0.015);
    color: var(--lab-paper);
}

.mode-index {
    display: grid;
    place-items: center;
    width: 28px;
    height: 28px;
    border: 1px solid var(--lab-line);
    font: 600 0.65rem var(--lab-font-mono);
}

.mode-button.is-active .mode-index {
    border-color: var(--lab-orange);
    background: var(--lab-orange);
    color: var(--lab-ink);
}

.mode-button > span:nth-child(2) {
    display: grid;
    gap: 0.1rem;
}

.mode-button strong {
    font: 700 0.98rem var(--lab-font-display);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.mode-button small {
    color: var(--lab-paper-muted);
    font: 400 0.62rem var(--lab-font-mono);
}

.mode-button > i {
    color: var(--lab-orange);
    font-size: 0.6rem;
    opacity: 0;
    transform: translateX(-5px);
    transition: 160ms ease;
}

.mode-button.is-active > i {
    opacity: 1;
    transform: translateX(0);
}

.mission-card {
    position: relative;
    margin-top: 1rem;
    padding: 0.85rem;
    border: 1px solid var(--lab-line);
    background: #131815;
}

.mission-card::before {
    content: '';
    position: absolute;
    inset: 0 0 auto;
    height: 3px;
    background: repeating-linear-gradient(135deg, var(--lab-orange) 0 7px, var(--lab-ink) 7px 14px);
}

.mission-card-head,
.mission-progress-copy {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    color: var(--lab-paper-muted);
    font: 500 0.56rem var(--lab-font-mono);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.mission-card-head {
    margin-top: 0.25rem;
}

.mission-card-head span:last-child {
    color: var(--lab-orange);
}

.mission-card h2 {
    margin: 0.75rem 0 0.35rem;
    color: var(--lab-paper);
    font: 700 1.2rem/1 var(--lab-font-display);
    text-transform: uppercase;
}

.mission-card p {
    min-height: 52px;
    margin: 0;
    color: var(--lab-paper-muted);
    font-size: 0.72rem;
    line-height: 1.5;
}

.mission-progress {
    height: 5px;
    margin: 0.8rem 0 0.45rem;
    overflow: hidden;
    background: rgba(232, 226, 212, 0.08);
}

.mission-progress span {
    display: block;
    width: 0;
    height: 100%;
    background: var(--lab-orange);
    transition: width 300ms ease;
}

.mission-progress-copy strong {
    color: var(--lab-paper);
}

.shortcut-card {
    display: grid;
    gap: 0.45rem;
    margin-top: auto;
    padding: 0.75rem 0.2rem 0;
    border-top: 1px solid var(--lab-line);
}

.shortcut-card > div {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    color: var(--lab-paper-muted);
    font: 500 0.58rem var(--lab-font-mono);
}

.shortcut-card > div span {
    margin-left: 0.2rem;
}

kbd {
    display: inline-grid;
    place-items: center;
    min-width: 21px;
    height: 21px;
    padding: 0 0.25rem;
    border: 1px solid var(--lab-line-strong);
    border-bottom-width: 2px;
    background: #111512;
    color: var(--lab-paper);
    font: 500 0.54rem var(--lab-font-mono);
}

/* 3D workbench */
.workbench {
    display: flex;
    flex-direction: column;
    height: clamp(610px, calc(100vh - 238px), 780px);
    overflow: hidden;
}

.workbench-header,
.deck-header {
    min-height: 72px;
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--lab-line);
}

.workbench-header h2,
.deck-header h2 {
    margin: 0.15rem 0 0;
    color: var(--lab-paper);
    font: 700 1.45rem/1 var(--lab-font-display);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.workbench-actions {
    display: flex;
    gap: 0.4rem;
}

.workbench-actions button {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    min-height: 36px;
    padding: 0 0.65rem;
    border: 1px solid var(--lab-line);
    background: transparent;
    color: var(--lab-paper-muted);
    font: 500 0.6rem var(--lab-font-mono);
    cursor: pointer;
}

.workbench-actions button:hover,
.workbench-actions button:focus-visible {
    border-color: var(--lab-orange);
    color: var(--lab-orange);
}

.stage-shell {
    position: relative;
    flex: 1;
    min-height: 0;
    margin: 0.75rem;
    overflow: hidden;
    border: 1px solid rgba(126, 216, 206, 0.22);
    background: #090d0b;
}

.stage-shell::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 3;
    pointer-events: none;
    background:
        linear-gradient(rgba(126, 216, 206, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(126, 216, 206, 0.035) 1px, transparent 1px);
    background-size: 28px 28px;
    mask-image: linear-gradient(to bottom, rgba(0,0,0,.45), transparent 46%);
}

.robot-viewer {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    min-height: 0;
    overflow: hidden;
    border: 0;
    border-radius: 0;
    background: #090d0b;
}

.robot-viewer canvas {
    display: block;
    width: 100% !important;
    height: 100% !important;
    outline: none;
}

.robot-viewer:focus-visible {
    outline: 2px solid var(--lab-orange);
    outline-offset: -2px;
}

.loading {
    position: absolute;
    inset: 0;
    display: grid;
    place-content: center;
    justify-items: center;
    gap: 0.65rem;
    background: #090d0b;
    color: var(--lab-paper-muted);
    font: 500 0.7rem var(--lab-font-mono);
    text-align: center;
}

.loading strong {
    color: var(--lab-paper);
    font: 700 1rem var(--lab-font-display);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.loading-spinner {
    width: 34px;
    height: 34px;
    border: 2px solid var(--lab-line);
    border-top-color: var(--lab-orange);
    border-radius: 50%;
    animation: labSpin 0.9s linear infinite;
}

.stage-frame {
    position: absolute;
    inset: 13px;
    z-index: 5;
    pointer-events: none;
}

.stage-frame span {
    position: absolute;
    width: 32px;
    height: 32px;
    border-color: var(--lab-orange);
    border-style: solid;
}

.stage-frame span:nth-child(1) { inset: 0 auto auto 0; border-width: 2px 0 0 2px; }
.stage-frame span:nth-child(2) { inset: 0 0 auto auto; border-width: 2px 2px 0 0; }
.stage-frame span:nth-child(3) { inset: auto auto 0 0; border-width: 0 0 2px 2px; }
.stage-frame span:nth-child(4) { inset: auto 0 0 auto; border-width: 0 2px 2px 0; }

.stage-status {
    position: absolute;
    z-index: 6;
    top: 1rem;
    left: 1rem;
    display: grid;
    grid-template-columns: repeat(4, minmax(66px, 1fr));
    border: 1px solid rgba(232, 226, 212, 0.18);
    background: rgba(9, 13, 11, 0.8);
    backdrop-filter: blur(10px);
}

.stage-status > div {
    min-width: 68px;
    padding: 0.48rem 0.62rem;
    border-right: 1px solid rgba(232, 226, 212, 0.12);
}

.stage-status > div:last-child {
    border-right: 0;
}

.stage-status small {
    display: block;
    color: var(--lab-paper-muted);
    font: 500 0.48rem var(--lab-font-mono);
    letter-spacing: 0.12em;
}

.stage-status strong {
    display: block;
    margin-top: 0.15rem;
    color: var(--lab-teal);
    font: 600 0.78rem var(--lab-font-mono);
}

.stage-mode-badge {
    position: absolute;
    right: 1rem;
    bottom: 1rem;
    z-index: 6;
    display: flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.5rem 0.7rem;
    border: 1px solid rgba(232, 226, 212, 0.18);
    background: rgba(9, 13, 11, 0.82);
    color: var(--lab-paper);
    font: 500 0.58rem var(--lab-font-mono);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.workbench-footer {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 0 0.9rem 0.75rem;
    color: var(--lab-paper-muted);
    font: 500 0.55rem var(--lab-font-mono);
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.workbench-footer i {
    margin-right: 0.35rem;
    color: var(--lab-teal);
}

/* Contextual control deck */
.control-deck {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.deck-id {
    padding: 0.32rem 0.45rem;
    border: 1px solid var(--lab-line);
    color: var(--lab-paper-muted);
    font: 500 0.54rem var(--lab-font-mono);
}

.lab-panel {
    min-height: 0;
    padding: 0.85rem;
    overflow: auto;
    scrollbar-color: var(--lab-orange) rgba(232, 226, 212, 0.05);
    scrollbar-width: thin;
}

.lab-panel::-webkit-scrollbar,
#output::-webkit-scrollbar,
#codeInput::-webkit-scrollbar {
    width: 6px;
}

.lab-panel::-webkit-scrollbar-thumb,
#output::-webkit-scrollbar-thumb,
#codeInput::-webkit-scrollbar-thumb {
    background: var(--lab-orange);
}

.panel-section {
    padding-bottom: 0.9rem;
    margin-bottom: 0.9rem;
    border-bottom: 1px solid var(--lab-line);
}

.section-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 0.7rem;
}

.section-heading h3,
.advanced-section h3,
.io-panel h3 {
    margin: 0;
    color: var(--lab-paper);
    font: 700 0.92rem var(--lab-font-display);
    letter-spacing: 0.055em;
    text-transform: uppercase;
}

.section-heading > span {
    color: var(--lab-orange);
    font: 600 0.52rem var(--lab-font-mono);
    letter-spacing: 0.08em;
}

.movement-pad {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.45rem;
}

.control-btn,
.effect-btn,
.editor-btn {
    border: 1px solid var(--lab-line-strong);
    border-radius: 0;
    background: #141a16;
    color: var(--lab-paper);
    box-shadow: none;
    cursor: pointer;
    transition: border-color 150ms ease, background 150ms ease, color 150ms ease, transform 150ms ease;
}

.control-btn:hover,
.control-btn:focus-visible,
.effect-btn:hover,
.effect-btn:focus-visible,
.editor-btn:hover,
.editor-btn:focus-visible {
    border-color: var(--lab-orange);
    background: rgba(255, 107, 44, 0.08);
    color: var(--lab-orange);
    transform: translateY(-1px);
}

.movement-pad .control-btn {
    position: relative;
    display: grid;
    place-items: center;
    width: auto;
    height: 52px;
    padding: 0;
    font-size: 0.9rem;
}

.movement-pad .control-btn small {
    position: absolute;
    right: 5px;
    bottom: 4px;
    color: var(--lab-paper-muted);
    font: 500 0.45rem var(--lab-font-mono);
}

.movement-pad .control-btn.center {
    background: rgba(126, 216, 206, 0.06);
    border-color: rgba(126, 216, 206, 0.3);
}

.movement-pad .control-btn.stop {
    background: rgba(228, 84, 63, 0.08);
    border-color: rgba(228, 84, 63, 0.42);
    color: var(--lab-red);
}

.diagonal-left i { transform: rotate(45deg); }
.diagonal-right i { transform: rotate(-45deg); }

.action-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.45rem;
}

.control-btn.action {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: auto;
    min-height: 44px;
    padding: 0.55rem;
    font: 600 0.66rem var(--lab-font-body);
}

.control-btn.action i {
    color: var(--lab-teal);
}

.system-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    min-height: 52px;
    padding: 0.65rem 0.75rem;
    border: 1px solid var(--lab-line-strong);
    background: #111512;
    color: var(--lab-paper);
    cursor: pointer;
}

.system-toggle > span:first-child {
    display: flex;
    align-items: center;
    gap: 0.55rem;
}

.system-toggle i {
    color: var(--lab-orange);
}

.system-toggle strong {
    font: 600 0.68rem var(--lab-font-mono);
    text-transform: uppercase;
}

.toggle-indicator {
    position: relative;
    width: 38px;
    height: 18px;
    border: 1px solid var(--lab-line-strong);
    background: #090d0b;
}

.toggle-indicator::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 10px;
    height: 10px;
    background: var(--lab-paper-muted);
    transition: 180ms ease;
}

body.physics-active .toggle-indicator::after {
    left: 23px;
    background: var(--lab-teal);
}

/* Programming */
.editor-controls {
    display: grid;
    grid-template-columns: 1.25fr 1fr 1fr;
    gap: 0.35rem;
    margin-bottom: 0.55rem;
}

.editor-btn,
.effect-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    min-height: 36px;
    padding: 0.5rem 0.55rem;
    font: 600 0.57rem var(--lab-font-mono);
    text-transform: uppercase;
}

.editor-btn.primary,
.effect-btn.primary {
    border-color: var(--lab-orange);
    background: var(--lab-orange);
    color: var(--lab-ink);
}

.editor-btn.primary:hover,
.effect-btn.primary:hover {
    background: #ff8652;
    color: var(--lab-ink);
}

.code-editor {
    position: relative;
    display: grid;
    grid-template-columns: 34px minmax(0, 1fr);
    height: 250px;
    overflow: hidden;
    border: 1px solid var(--lab-line-strong);
    border-radius: 0;
    background: #0a0e0c;
}

.line-gutter {
    padding: 0.75rem 0.45rem;
    border-right: 1px solid var(--lab-line);
    color: rgba(172, 169, 159, 0.38);
    font: 400 0.63rem/1.62 var(--lab-font-mono);
    text-align: right;
    user-select: none;
}

#codeInput {
    width: 100%;
    height: 100%;
    min-height: 0;
    padding: 0.75rem;
    resize: none;
    border: 0;
    border-radius: 0;
    outline: 0;
    background: transparent;
    color: var(--lab-teal);
    caret-color: var(--lab-orange);
    font: 400 0.67rem/1.62 var(--lab-font-mono);
    tab-size: 4;
}

#codeInput::placeholder {
    color: rgba(172, 169, 159, 0.42);
}

.code-editor:focus-within {
    border-color: var(--lab-orange);
}

.output-console {
    margin-top: 0.55rem;
    overflow: hidden;
    border: 1px solid var(--lab-line);
    border-radius: 0;
    background: #090d0b;
}

.console-header {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.45rem 0.55rem;
    border-bottom: 1px solid var(--lab-line);
    background: rgba(232, 226, 212, 0.035);
    color: var(--lab-paper-muted);
    font: 500 0.52rem var(--lab-font-mono);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.console-header i,
.console-header strong {
    color: var(--lab-orange);
}

#output {
    height: 165px;
    padding: 0.65rem;
    overflow: auto;
    color: var(--lab-paper-muted);
    font: 400 0.58rem/1.55 var(--lab-font-mono);
    white-space: pre-wrap;
}

/* Simulation and diagnostics */
.simulation-grid {
    display: grid;
    gap: 0.55rem;
}

.advanced-section {
    padding: 0.7rem;
    border: 1px solid var(--lab-line);
    border-radius: 0;
    background: #131815;
    box-shadow: none;
}

.advanced-section h3 {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    margin-bottom: 0.6rem;
}

.advanced-section h3 i {
    color: var(--lab-orange);
    font-size: 0.72rem;
}

.advanced-section .effect-btn {
    width: 100%;
    margin: 0 0 0.35rem;
}

.toggle-switch {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    width: 100%;
    margin-bottom: 0.6rem;
    color: var(--lab-paper-muted);
    font: 500 0.58rem var(--lab-font-mono);
}

.toggle-switch .slider {
    position: relative;
    display: inline-block;
    width: 38px;
    height: 18px;
    border: 1px solid var(--lab-line-strong);
    border-radius: 0;
    background: #090d0b;
}

.toggle-switch .slider::before {
    width: 10px;
    height: 10px;
    left: 3px;
    bottom: 3px;
    background: var(--lab-paper-muted);
}

.toggle-switch input:checked + .slider {
    background: rgba(126, 216, 206, 0.08);
}

.toggle-switch input:checked + .slider::before {
    transform: translateX(20px);
    background: var(--lab-teal);
}

.performance-stats {
    margin: 0;
    padding: 0;
    border: 0;
    background: transparent;
}

.diagnostic-gauge {
    display: grid;
    place-content: center;
    width: 144px;
    height: 144px;
    margin: 0.75rem auto 1rem;
    border: 1px solid rgba(126, 216, 206, 0.42);
    border-radius: 50%;
    background:
        radial-gradient(circle, transparent 54%, rgba(126, 216, 206, 0.06) 55% 60%, transparent 61%),
        #111512;
    box-shadow: inset 0 0 40px rgba(126, 216, 206, 0.07);
    text-align: center;
}

.diagnostic-gauge span {
    color: var(--lab-teal);
    font: 600 2.3rem/1 var(--lab-font-mono);
}

.diagnostic-gauge small {
    margin-top: 0.25rem;
    color: var(--lab-paper-muted);
    font: 500 0.55rem var(--lab-font-mono);
    letter-spacing: 0.16em;
}

.performance-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    margin-bottom: 0.75rem;
    padding: 0;
    border-top: 1px solid var(--lab-line);
}

.perf-item {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.55rem 0.15rem;
    border-bottom: 1px solid var(--lab-line);
    color: var(--lab-paper-muted);
    font: 500 0.59rem var(--lab-font-mono);
}

.perf-item strong {
    color: var(--lab-paper);
}

.diagnostic-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.4rem;
}

.diagnostic-actions .primary {
    grid-column: 1 / -1;
}

.io-panel {
    margin-top: 0.85rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--lab-line);
}

.io-panel > div {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.4rem;
    margin-top: 0.55rem;
}

/* Motion */
.fade-in {
    opacity: 1;
    transform: none;
}

@keyframes labPulse {
    0%, 100% { opacity: 0.62; }
    50% { opacity: 1; }
}

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

@media (prefers-reduced-motion: no-preference) {
    .mission-rail,
    .workbench,
    .control-deck {
        animation: panelReveal 520ms cubic-bezier(.2,.8,.2,1) both;
    }

    .workbench { animation-delay: 80ms; }
    .control-deck { animation-delay: 150ms; }

    @keyframes panelReveal {
        from { opacity: 0; transform: translateY(12px); }
        to { opacity: 1; transform: translateY(0); }
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Wide and compact desktop */
@media (min-width: 1680px) {
    .container.lab-layout {
        grid-template-columns: 265px minmax(680px, 1fr) 390px;
    }
}

@media (max-width: 1320px) {
    .navbar {
        grid-template-columns: minmax(220px, 1fr) auto auto;
    }

    .system-status {
        display: none;
    }

    .nav-menu {
        grid-column: 2;
    }

    .navbar-actions {
        grid-column: 3;
    }

    .container.lab-layout {
        grid-template-columns: 220px minmax(500px, 1fr) 330px;
        width: min(calc(100% - 1.5rem), 1820px);
    }

    .page-header.lab-briefing {
        width: calc(100% - 1.5rem);
    }

    .briefing-specs div:nth-child(2) {
        display: none;
    }

    .workbench-actions span {
        display: none;
    }
}

@media (max-width: 1080px) {
    body {
        padding-top: 68px;
    }

    .header {
        height: 68px;
    }

    .page-header.lab-briefing {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .briefing-specs {
        display: none;
    }

    .container.lab-layout {
        grid-template-columns: 210px minmax(0, 1fr);
    }

    .mission-rail {
        grid-column: 1;
        grid-row: 1 / span 2;
        height: auto;
        min-height: 650px;
    }

    .workbench {
        grid-column: 2;
        height: 610px;
    }

    .control-deck {
        grid-column: 2;
        height: auto;
        min-height: 520px;
    }

    .lab-panel {
        max-height: 620px;
    }

    .simulation-grid {
        grid-template-columns: 1fr 1fr;
    }

    .programming .code-editor {
        height: 300px;
    }
}

/* Tablet / mobile command layout */
@media (max-width: 820px) {
    body {
        padding-top: 64px;
    }

    .header {
        height: 64px;
    }

    .navbar {
        display: flex;
        justify-content: space-between;
        padding: 0 0.8rem;
    }

    .logo-copy small {
        display: none;
    }

    .logo-copy strong {
        font-size: 1rem;
    }

    .logo-mark {
        width: 35px;
        height: 35px;
    }

    .mobile-menu-btn {
        display: grid;
        place-content: center;
        gap: 4px;
        width: 40px;
        height: 40px;
        padding: 0;
        border: 1px solid var(--lab-line-strong);
        border-radius: 0;
        background: transparent;
    }

    .hamburger-line {
        display: block;
        width: 20px;
        height: 2px;
        background: var(--lab-paper);
    }

    .nav-menu {
        position: fixed;
        top: 64px;
        right: -100%;
        z-index: 1100;
        display: grid;
        align-content: start;
        justify-items: stretch;
        gap: 0.35rem;
        width: min(320px, 88vw);
        height: calc(100vh - 64px);
        padding: 1rem;
        border-left: 1px solid var(--lab-line-strong);
        background: #111512;
        transition: right 240ms ease;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-link {
        width: 100%;
        min-height: 48px;
        border-color: var(--lab-line);
    }

    .mobile-menu-overlay {
        position: fixed;
        inset: 64px 0 0;
        z-index: 1050;
        background: rgba(0, 0, 0, 0.66);
    }

    .page-header.lab-briefing {
        width: calc(100% - 1rem);
        margin-top: 0.5rem;
        padding: 0.9rem 1rem;
    }

    .page-title {
        font-size: clamp(1.8rem, 9vw, 2.8rem);
    }

    .page-subtitle {
        font-size: 0.78rem;
    }

    .container.lab-layout {
        display: flex;
        flex-direction: column;
        width: calc(100% - 1rem);
        padding-top: 0.5rem;
    }

    .mission-rail {
        order: 2;
        display: block;
        min-height: 0;
        height: auto;
        padding: 0.65rem;
    }

    .rail-heading,
    .mission-card,
    .shortcut-card {
        display: none;
    }

    .mode-switcher {
        grid-template-columns: repeat(4, 1fr);
        gap: 0.3rem;
        margin: 0;
    }

    .mode-button {
        display: grid;
        grid-template-columns: 1fr;
        justify-items: center;
        min-height: 54px;
        padding: 0.4rem 0.2rem;
        text-align: center;
    }

    .mode-index,
    .mode-button small,
    .mode-button > i {
        display: none;
    }

    .mode-button strong {
        font-size: 0.78rem;
    }

    .workbench {
        order: 1;
        height: min(68vh, 620px);
        min-height: 470px;
    }

    .control-deck {
        order: 3;
        min-height: 0;
        height: auto;
    }

    .lab-panel {
        max-height: none;
    }

    .stage-status {
        grid-template-columns: repeat(2, minmax(62px, 1fr));
    }

    .stage-status > div:nth-child(2) {
        border-right: 0;
    }

    .stage-status > div:nth-child(-n+2) {
        border-bottom: 1px solid rgba(232, 226, 212, 0.12);
    }

    .simulation-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 520px) {
    .logo-copy strong {
        max-width: 145px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    body #lang-toggle {
        min-width: 40px;
        padding-inline: 0.5rem;
    }

    .workbench {
        min-height: 430px;
        height: 58vh;
    }

    .workbench-header,
    .deck-header {
        min-height: 64px;
        padding: 0.7rem;
    }

    .workbench-header h2,
    .deck-header h2 {
        font-size: 1.2rem;
    }

    .workbench-actions button {
        width: 34px;
        padding: 0;
        justify-content: center;
    }

    .stage-shell {
        margin: 0.5rem;
    }

    .stage-status {
        top: 0.7rem;
        left: 0.7rem;
        transform: scale(0.9);
        transform-origin: top left;
    }

    .stage-mode-badge {
        right: 0.7rem;
        bottom: 0.7rem;
    }

    .workbench-footer span:first-child {
        display: none;
    }

    .workbench-footer {
        justify-content: flex-end;
    }

    .movement-pad .control-btn {
        height: 56px;
    }

    .simulation-grid,
    .diagnostic-actions {
        grid-template-columns: 1fr;
    }

    .diagnostic-actions .primary {
        grid-column: auto;
    }

    .code-editor {
        height: 280px;
    }
}