/* ==========================================================================
   SOLAR EXPLORER - Cinematic Space-Exploration Design System
   ========================================================================== */

:root {
    --bg-space: #030712;
    --bg-panel: rgba(11, 17, 33, 0.78);
    --bg-panel-hover: rgba(17, 26, 49, 0.88);
    --border-subtle: rgba(255, 255, 255, 0.09);
    --border-glow: rgba(0, 229, 255, 0.35);
    
    --text-primary: #f0f4f8;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --accent-cyan: #00e5ff;
    --accent-gold: #ffd166;
    --accent-purple: #b388ff;
    --accent-blue: #3b82f6;
    --accent-red: #ef4444;

    --font-main: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', Menlo, Monaco, Consolas, monospace;

    --panel-radius: 14px;
    --button-radius: 8px;
    --transition-smooth: all 0.24s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
}

body, html {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: var(--bg-space);
    font-family: var(--font-main);
    color: var(--text-primary);
    user-select: none;
}

/* 3D Canvas Container */
#viewportContainer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

#viewportContainer canvas {
    touch-action: none;
    cursor: grab;
}

#viewportContainer canvas:active {
    cursor: grabbing;
}

.mobile-quick-nav {
    display: none;
}

.mobile-brand-header {
    display: none;
}

.site-footer {
    position: fixed;
    right: 20px;
    bottom: 16px;
    z-index: 12;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 16px;
    background: linear-gradient(145deg, rgba(13, 22, 42, 0.94), rgba(3, 7, 18, 0.92));
    border: 1px solid rgba(0, 229, 255, 0.2);
    border-radius: 16px;
    color: var(--text-secondary);
    font-size: 0.72rem;
    line-height: 1.2;
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.42), inset 0 1px 0 rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

.site-footer-copyright {
    display: flex;
    align-items: center;
    gap: 9px;
    padding-right: 16px;
    border-right: 1px solid var(--border-subtle);
    color: var(--text-muted);
    white-space: nowrap;
}

.site-footer-copyright strong {
    color: var(--text-secondary);
    font-weight: 600;
}

.site-footer-copyright a {
    display: inline;
    min-height: 0;
    padding: 0;
    background: none;
    border: 0;
    font-size: inherit;
}

.site-footer-copyright a:hover,
.site-footer-copyright a:focus-visible {
    background: none;
    transform: none;
}

.footer-solar-mark {
    width: 11px;
    height: 11px;
    flex: 0 0 auto;
    border-radius: 50%;
    background: radial-gradient(circle, #fff3b0 0%, #ffb52e 48%, #ff6b1a 75%, transparent 100%);
    box-shadow: 0 0 12px rgba(255, 177, 45, 0.58);
}

.site-footer-contact {
    display: flex;
    align-items: center;
    gap: 10px;
}

.site-footer-contact-title {
    color: var(--text-primary);
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.03em;
}

.site-footer-links {
    display: flex;
    align-items: center;
    gap: 7px;
}

.site-footer a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-height: 30px;
    padding: 0 10px;
    background: rgba(255, 255, 255, 0.045);
    border: 1px solid rgba(255, 255, 255, 0.075);
    border-radius: 9px;
    color: var(--text-secondary);
    font-size: 0.68rem;
    text-decoration: none;
    transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.site-footer a:hover,
.site-footer a:focus-visible {
    background: rgba(0, 229, 255, 0.08);
    border-color: rgba(0, 229, 255, 0.3);
    color: var(--accent-cyan);
    text-decoration: none;
    transform: translateY(-1px);
}

.whatsapp-icon {
    width: 16px;
    height: 16px;
    fill: none;
    stroke: #25d366;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.6;
}

.site-footer a:hover .whatsapp-icon,
.site-footer a:focus-visible .whatsapp-icon {
    stroke: var(--accent-cyan);
}

/* Top Navigation Bar */
.top-nav {
    position: absolute;
    top: 16px;
    left: 16px;
    right: 16px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    background: var(--bg-panel);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--panel-radius);
    z-index: 10;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
}

.brand-section {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-home-link {
    display: flex;
    align-items: center;
    gap: 12px;
    color: inherit;
    text-decoration: none;
}

.brand-logo {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: radial-gradient(circle, #ffdd44 0%, #ff8800 60%, transparent 100%);
    box-shadow: 0 0 16px rgba(255, 200, 50, 0.7);
}

.brand-title {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    background: linear-gradient(135deg, #ffffff 40%, var(--accent-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Search Bar */
.search-container {
    position: relative;
    width: 260px;
}

.search-input {
    width: 100%;
    height: 36px;
    padding: 0 14px 0 36px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    border-radius: var(--button-radius);
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 0.88rem;
    outline: none;
    transition: var(--transition-smooth);
}

.search-input:focus {
    border-color: var(--accent-cyan);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 12px rgba(0, 229, 255, 0.25);
}

.search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.85rem;
    color: var(--text-muted);
    pointer-events: none;
}

.search-results {
    position: absolute;
    top: 42px;
    left: 0;
    width: 100%;
    background: rgba(13, 21, 38, 0.95);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--button-radius);
    max-height: 240px;
    overflow-y: auto;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6);
}

.search-results.hidden {
    display: none;
}

.search-item {
    padding: 10px 14px;
    font-size: 0.85rem;
    display: flex;
    justify-content: space-between;
    cursor: pointer;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    transition: var(--transition-smooth);
}

.search-item:hover {
    background: rgba(0, 229, 255, 0.12);
    color: var(--accent-cyan);
}

.search-item.empty {
    color: var(--text-muted);
    font-style: italic;
    cursor: default;
}

.search-type {
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

/* Mode Switcher */
.mode-switcher {
    display: flex;
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid var(--border-subtle);
    border-radius: var(--button-radius);
    padding: 3px;
    gap: 4px;
}

.mode-btn {
    background: transparent;
    border: none;
    padding: 6px 14px;
    font-family: var(--font-main);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.mode-btn:hover {
    color: var(--text-primary);
}

.mode-btn.active {
    background: rgba(0, 229, 255, 0.18);
    color: var(--accent-cyan);
    box-shadow: 0 0 10px rgba(0, 229, 255, 0.25);
}

/* Nav Actions */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    padding: 7px 12px;
    font-family: var(--font-main);
    font-size: 0.82rem;
    font-weight: 500;
    border-radius: var(--button-radius);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition-smooth);
}

.nav-btn:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.2);
}

.nav-btn.active {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}

/* Scale Disclosure Banner */
.scale-disclosure-wrapper {
    position: absolute;
    top: 82px;
    left: 50%;
    transform: translateX(-50%);
    width: auto;
    max-width: 680px;
    z-index: 10;
    pointer-events: none;
}

.scale-disclosure-card {
    background: rgba(11, 17, 33, 0.8);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-subtle);
    border-radius: 30px;
    padding: 8px 18px;
    display: flex;
    align-items: center;
    gap: 14px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    pointer-events: auto;
}

.scale-badge {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding: 3px 9px;
    border: 1px solid var(--accent-gold);
    color: var(--accent-gold);
    border-radius: 20px;
    white-space: nowrap;
    text-transform: uppercase;
}

.scale-desc {
    font-size: 0.78rem;
    color: var(--text-secondary);
    line-height: 1.35;
}

.scale-bar-wrapper {
    display: none;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--accent-cyan);
}

.scale-bar {
    width: 60px;
    height: 3px;
    background: var(--accent-cyan);
    position: relative;
}

.scale-bar::before, .scale-bar::after {
    content: '';
    position: absolute;
    top: -3px;
    width: 2px;
    height: 9px;
    background: var(--accent-cyan);
}

.scale-bar::before { left: 0; }
.scale-bar::after { right: 0; }

/* Toggles Ribbon */
.toggles-ribbon {
    position: absolute;
    top: 82px;
    left: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: var(--bg-panel);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--panel-radius);
    padding: 12px 16px;
    z-index: 10;
}

.toggle-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    font-size: 0.78rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.toggle-item:hover {
    color: var(--text-primary);
}

.toggle-item input[type="checkbox"] {
    accent-color: var(--accent-cyan);
    width: 15px;
    height: 15px;
    cursor: pointer;
}

/* Collapsible Dossier Panel (Right Sidebar) */
.dossier-panel {
    position: absolute;
    top: 82px;
    right: 16px;
    bottom: var(--dossier-controls-clearance, 160px);
    width: 380px;
    background: var(--bg-panel);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--panel-radius);
    display: flex;
    flex-direction: column;
    z-index: 10;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease;
}

.dossier-panel.collapsed {
    transform: translateX(410px);
    pointer-events: none;
    opacity: 0;
}

.dossier-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.dossier-titles {
    display: flex;
    align-items: center;
    gap: 12px;
}

.dossier-symbol {
    font-size: 1.8rem;
    color: var(--accent-cyan);
    line-height: 1;
}

.dossier-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: #ffffff;
}

.dossier-type {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.dossier-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.3rem;
    cursor: pointer;
    line-height: 1;
    transition: var(--transition-smooth);
}

.dossier-close:hover {
    color: #ffffff;
}

/* Dossier Tabs */
.dossier-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-subtle);
    background: rgba(0, 0, 0, 0.2);
    overflow-x: auto;
}

.dossier-tab {
    background: transparent;
    border: none;
    padding: 10px 14px;
    font-family: var(--font-main);
    font-size: 0.76rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    white-space: nowrap;
    transition: var(--transition-smooth);
}

.dossier-tab:hover {
    color: var(--text-primary);
}

.dossier-tab.active {
    color: var(--accent-cyan);
    border-bottom-color: var(--accent-cyan);
}

.dossier-content {
    flex: 1;
    padding: 18px 20px;
    overflow-y: auto;
}

.dossier-summary {
    font-size: 0.85rem;
    line-height: 1.5;
    color: var(--text-secondary);
    margin-bottom: 18px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 18px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 10px 12px;
}

.stat-label {
    display: block;
    font-size: 0.68rem;
    color: var(--text-muted);
    font-weight: 600;
    letter-spacing: 0.06em;
    margin-bottom: 4px;
}

.stat-val {
    font-size: 0.95rem;
    font-weight: 700;
    color: #ffffff;
    font-family: var(--font-mono);
}

.dossier-section-title {
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--accent-cyan);
    margin: 16px 0 8px 0;
    text-transform: uppercase;
}

.fact-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.fact-list li {
    font-size: 0.82rem;
    line-height: 1.45;
    color: var(--text-secondary);
    position: relative;
    padding-left: 14px;
}

.fact-list li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--accent-cyan);
    font-weight: bold;
}

.disclosure-subtext {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.45;
    margin-bottom: 12px;
}

/* Telemetry Box */
.telemetry-box {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.telemetry-item {
    background: rgba(0, 229, 255, 0.04);
    border-left: 3px solid var(--accent-cyan);
    border-radius: 4px;
    padding: 8px 12px;
}

.t-label {
    display: block;
    font-size: 0.68rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    margin-bottom: 2px;
}

.t-value {
    font-size: 0.88rem;
    font-weight: 600;
    color: #ffffff;
}

.monospace {
    font-family: var(--font-mono);
    font-size: 0.78rem;
}

/* Atmospheric Composition Bars */
.comp-bar-wrapper {
    margin-bottom: 10px;
}

.comp-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.76rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.comp-bar-bg {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 3px;
    overflow: hidden;
}

.comp-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan));
    border-radius: 3px;
}

/* Missions Cards */
.missions-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mission-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 10px 12px;
}

.mission-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 4px;
}

.mission-name {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent-gold);
}

.mission-year {
    font-size: 0.72rem;
    color: var(--text-muted);
}

.mission-notes {
    font-size: 0.78rem;
    line-height: 1.4;
    color: var(--text-secondary);
}

/* Bottom Controls Section */
.bottom-controls-bar {
    position: absolute;
    bottom: 40px;
    left: 16px;
    right: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 10;
}

/* Simulation Clock Bar */
.sim-clock-bar {
    height: 48px;
    background: var(--bg-panel);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--panel-radius);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
}

.clock-playback-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.playback-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid var(--border-subtle);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.85rem;
    transition: var(--transition-smooth);
}

.playback-btn:hover {
    background: rgba(255, 255, 255, 0.16);
    border-color: rgba(255, 255, 255, 0.3);
}

.playback-btn.main-btn {
    width: 38px;
    height: 38px;
    background: var(--accent-cyan);
    color: #030712;
    border: none;
    font-size: 1rem;
    box-shadow: 0 0 16px rgba(0, 229, 255, 0.45);
}

.playback-btn.main-btn.paused {
    background: rgba(255, 255, 255, 0.18);
    color: #ffffff;
    box-shadow: none;
}

.clock-date-group {
    display: flex;
    align-items: center;
    gap: 12px;
}

.date-input {
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-subtle);
    border-radius: var(--button-radius);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.82rem;
    padding: 5px 8px;
    outline: none;
}

.date-input:focus {
    border-color: var(--accent-cyan);
}

.sim-readout {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-secondary);
}

.sim-jd {
    color: var(--accent-gold);
    font-weight: 600;
}

.clock-speed-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.speed-select, .epoch-select {
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid var(--border-subtle);
    border-radius: var(--button-radius);
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 0.8rem;
    padding: 5px 8px;
    outline: none;
    cursor: pointer;
}

.speed-select:focus, .epoch-select:focus {
    border-color: var(--accent-cyan);
}

/* Planet Navigation Dock */
.planet-dock-wrapper {
    max-height: 30vh;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 2px 2px 4px;
}

.planet-dock {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.dock-item {
    background: var(--bg-panel);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    padding: 6px 10px;
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    color: var(--text-secondary);
    font-family: var(--font-main);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    text-align: left;
}

.dock-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.moon-dock[hidden] {
    display: none;
}

.moon-dock {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-top: 6px;
    padding-top: 6px;
    border-top: 1px solid var(--border-subtle);
}

.moon-dock-title {
    flex: 0 0 auto;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
}

.moon-dock-items {
    display: flex;
    flex: 1 1 0;
    flex-wrap: wrap;
    gap: 6px;
    min-width: 0;
}

.dock-item.moon-item {
    padding: 5px 7px;
    font-size: 0.72rem;
}

.dock-item:hover {
    color: #ffffff;
    background: var(--bg-panel-hover);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.dock-item.active {
    background: rgba(0, 229, 255, 0.16);
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    box-shadow: 0 0 12px rgba(0, 229, 255, 0.3);
}

.dock-icon {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.dock-icon.star-icon {
    box-shadow: 0 0 8px #ffaa00;
}

/* WebGL Fallback Alert */
.webgl-fallback-banner {
    position: absolute;
    top: 80px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(239, 68, 68, 0.9);
    color: #ffffff;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 0.85rem;
    z-index: 100;
    display: none;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
    .dossier-panel {
        width: 320px;
    }
    .scale-disclosure-wrapper {
        display: none;
    }
}

@media (max-width: 900px) {
    html,
    body {
        overflow: hidden;
        overscroll-behavior: none;
    }

    .top-nav {
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto;
        grid-template-areas:
            "brand actions"
            "search search"
            "modes modes";
        align-items: center;
        height: auto;
        min-height: 0;
        top: 8px;
        left: 8px;
        right: 8px;
        padding: 9px 10px;
        gap: 8px;
    }

    .brand-section {
        grid-area: brand;
        min-width: 0;
        gap: 8px;
    }

    .brand-logo {
        width: 22px;
        height: 22px;
        flex: 0 0 auto;
    }

    .brand-title {
        font-size: 0.9rem;
        letter-spacing: 0.08em;
        white-space: nowrap;
    }

    .search-container {
        grid-area: search;
        width: 100%;
    }

    .search-input {
        height: 40px;
        font-size: 16px;
    }

    .mode-switcher {
        grid-area: modes;
        width: 100%;
        min-width: 0;
    }

    .mode-btn {
        flex: 1 1 0;
        min-width: 0;
        padding: 8px 4px;
        font-size: 0.7rem;
        white-space: nowrap;
    }

    .nav-actions {
        grid-area: actions;
        gap: 4px;
    }

    .nav-btn {
        min-width: 40px;
        min-height: 40px;
        justify-content: center;
        padding: 6px 8px;
    }

    #btnOverview,
    #toggleDossier {
        font-size: 0;
    }

    #btnOverview span,
    #toggleDossier span {
        font-size: 1rem;
    }

    .toggles-ribbon {
        top: 164px;
        left: 8px;
        right: 8px;
        flex-direction: row;
        gap: 12px;
        padding: 7px 10px;
        overflow-x: auto;
        overflow-y: hidden;
        border-radius: 10px;
        scrollbar-width: none;
    }

    .toggles-ribbon::-webkit-scrollbar {
        display: none;
    }

    .toggle-item {
        flex: 0 0 auto;
        gap: 6px;
        font-size: 0.68rem;
        white-space: nowrap;
    }

    .toggle-item input[type="checkbox"] {
        width: 18px;
        height: 18px;
    }

    .dossier-panel {
        position: fixed;
        top: 204px;
        bottom: var(--dossier-controls-clearance, 45dvh);
        right: 8px;
        left: 8px;
        width: auto;
        max-height: none;
        min-height: 0;
        border-radius: 12px;
    }

    .dossier-panel.collapsed {
        transform: translateY(16px);
    }

    .dossier-header {
        padding: 12px 14px;
    }

    .dossier-title {
        font-size: 1.1rem;
    }

    .dossier-content {
        min-height: 0;
        padding: 14px;
    }

    .dossier-tab {
        min-height: 42px;
        padding: 10px 12px;
    }

    .bottom-controls-bar {
        position: fixed;
        left: 8px;
        right: 8px;
        bottom: calc(8px + env(safe-area-inset-bottom));
        gap: 6px;
    }

    .sim-clock-bar {
        display: grid;
        grid-template-columns: minmax(0, 1fr);
        height: auto;
        justify-content: stretch;
        gap: 8px;
        padding: 8px;
        border-radius: 12px;
    }

    .clock-playback-group {
        justify-content: space-between;
        gap: 6px;
    }

    .playback-btn,
    .playback-btn.main-btn {
        width: 40px;
        height: 40px;
        flex: 0 0 auto;
    }

    #btnNow {
        width: auto;
        min-width: 48px;
        padding: 0 8px;
        border-radius: 20px;
    }

    .clock-date-group {
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto;
        gap: 6px;
        min-width: 0;
    }

    .date-input {
        width: 100%;
        min-width: 0;
        height: 38px;
        padding: 5px;
        font-size: 0.74rem;
    }

    .sim-readout {
        align-self: center;
        font-size: 0.68rem;
        white-space: nowrap;
    }

    #simUtcDisplay {
        display: none;
    }

    .clock-speed-group {
        display: grid;
        grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr);
        gap: 6px;
        min-width: 0;
    }

    .speed-select,
    .epoch-select {
        width: 100%;
        min-width: 0;
        height: 38px;
        padding: 5px 6px;
        font-size: 0.72rem;
    }

    .planet-dock-wrapper {
        max-height: 24dvh;
        padding: 2px 1px;
        scrollbar-width: thin;
    }

    .planet-dock {
        gap: 6px;
    }

    .dock-item {
        min-height: 38px;
        padding: 6px 8px;
        gap: 6px;
        font-size: 0.72rem;
    }

    .dock-item.moon-item {
        min-height: 36px;
        font-size: 0.68rem;
    }

    .moon-dock {
        gap: 6px;
        margin-top: 4px;
        padding-top: 5px;
    }

    .moon-dock-title {
        font-size: 0.62rem;
    }

    .moon-dock-items {
        gap: 5px;
    }

    .webgl-fallback-banner {
        top: 195px;
        left: 8px;
        right: 8px;
        transform: none;
        padding: 8px 10px;
        text-align: center;
    }
}

@media (min-width: 901px) {
    .bottom-controls-bar {
        bottom: 104px;
    }
}

@media (max-width: 420px) {
    .dossier-panel {
        top: 198px;
    }

    .clock-date-group {
        grid-template-columns: minmax(0, 1fr);
    }

    .sim-readout {
        display: flex;
        justify-content: space-between;
        padding: 0 2px;
    }
}

@media (max-height: 760px) and (max-width: 900px) {
    .dossier-panel {
        z-index: 12;
    }
}

@media (max-height: 520px) and (max-width: 900px) {
    .top-nav {
        grid-template-areas:
            "brand actions"
            "search modes";
    }

    .mode-switcher {
        width: auto;
    }

    .mode-btn {
        padding: 7px 5px;
        font-size: 0.64rem;
    }

    .toggles-ribbon {
        top: 124px;
    }

    .sim-clock-bar {
        grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    }

    .clock-playback-group {
        grid-column: 1 / -1;
    }

    .clock-date-group {
        grid-template-columns: minmax(0, 1fr);
    }

    .planet-dock-wrapper {
        max-height: 18dvh;
    }

    .dossier-panel {
        top: 124px;
        right: 8px;
        left: auto;
        width: min(380px, 45vw);
        z-index: 12;
    }
}

@media (max-width: 900px) {
    .mobile-brand-header {
        position: fixed;
        top: 8px;
        left: 8px;
        z-index: 15;
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 5px 10px;
        background: var(--bg-panel);
        border: 1px solid var(--border-subtle);
        border-radius: 10px;
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
    }

    .mobile-brand-header .brand-logo {
        width: 20px;
        height: 20px;
    }

    .mobile-brand-header .brand-home-link {
        gap: 8px;
    }

    .mobile-brand-header .brand-title {
        font-size: 0.78rem;
        letter-spacing: 0.08em;
    }

    .site-footer {
        right: 8px;
        bottom: calc(8px + env(safe-area-inset-bottom));
        left: 8px;
        z-index: 29;
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
        padding: 10px 12px;
        border-radius: 14px;
        font-size: 0.66rem;
    }

    .site-footer-copyright {
        justify-content: center;
        gap: 7px;
        padding: 0 0 7px;
        border-right: 0;
        border-bottom: 1px solid var(--border-subtle);
        font-size: 0.65rem;
    }

    .site-footer-contact {
        justify-content: center;
        gap: 6px;
    }

    .site-footer-contact-title {
        flex: 0 0 auto;
        font-size: 0.62rem;
    }

    .site-footer-links {
        justify-content: center;
        gap: 4px;
    }

    .site-footer a {
        min-height: 32px;
        gap: 4px;
        padding: 0 6px;
        font-size: 0.58rem;
    }

    .top-nav,
    .toggles-ribbon,
    .dossier-panel,
    .bottom-controls-bar {
        display: none;
    }

    .mobile-quick-nav {
        position: fixed;
        right: 8px;
        bottom: calc(126px + env(safe-area-inset-bottom));
        left: 8px;
        z-index: 30;
        display: flex;
        justify-content: center;
        gap: 5px;
        padding: 6px;
        overflow-x: auto;
        background: var(--bg-panel);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        border: 1px solid var(--border-subtle);
        border-radius: 14px;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.55);
        scrollbar-width: none;
    }

    .mobile-quick-nav::-webkit-scrollbar {
        display: none;
    }

    .mobile-quick-nav button {
        flex: 1 0 auto;
        min-width: 54px;
        min-height: 40px;
        padding: 0 9px;
        background: transparent;
        border: 1px solid transparent;
        border-radius: 9px;
        color: var(--text-secondary);
        font: 600 0.72rem var(--font-main);
        cursor: pointer;
    }

    .mobile-quick-nav button[aria-expanded="true"] {
        background: rgba(0, 229, 255, 0.14);
        border-color: var(--border-glow);
        color: var(--accent-cyan);
    }

    body[data-mobile-panel="explore"] .top-nav {
        position: fixed;
        top: 48px;
        right: 8px;
        left: 8px;
        display: grid;
        width: auto;
    }

    body[data-mobile-panel="explore"] .top-nav {
        grid-template-areas:
            "actions actions"
            "search search"
            "modes modes";
    }

    body[data-mobile-panel="explore"] .brand-section {
        display: none;
    }

    body[data-mobile-panel="layers"] .toggles-ribbon {
        position: fixed;
        top: auto;
        right: 8px;
        bottom: calc(188px + env(safe-area-inset-bottom));
        left: 8px;
        display: flex;
        max-height: min(40dvh, 300px);
        flex-direction: column;
        overflow-x: hidden;
        overflow-y: auto;
    }

    body[data-mobile-panel="dossier"] .dossier-panel {
        position: fixed;
        top: 8px;
        right: 8px;
        bottom: calc(128px + env(safe-area-inset-bottom));
        left: 8px;
        display: flex;
        width: auto;
        z-index: 25;
    }

    body[data-mobile-panel="dossier"] .dossier-panel.collapsed {
        transform: translateY(8px);
    }

    body[data-mobile-panel="clock"] .bottom-controls-bar,
    body[data-mobile-panel="bodies"] .bottom-controls-bar {
        position: fixed;
        right: 8px;
        bottom: calc(188px + env(safe-area-inset-bottom));
        left: 8px;
        display: flex;
        max-height: min(48dvh, 360px);
        overflow-y: auto;
        padding: 6px;
        background: var(--bg-panel);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        border: 1px solid var(--border-subtle);
        border-radius: 14px;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.55);
    }

    body[data-mobile-panel="clock"] .planet-dock-wrapper,
    body[data-mobile-panel="bodies"] .sim-clock-bar {
        display: none;
    }

    body[data-mobile-panel="clock"] .sim-clock-bar {
        width: 100%;
    }

    body[data-mobile-panel="bodies"] .planet-dock-wrapper {
        max-height: 44dvh;
        width: 100%;
    }

    body[data-mobile-panel="bodies"] .planet-dock {
        justify-content: center;
    }

    body[data-mobile-panel="bodies"] .moon-dock {
        justify-content: center;
    }
}