/* ========================================
   Rocket Launch Simulator - Styles
   ======================================== */

:root {
    /* Color Palette */
    --bg-dark: #0a0e17;
    --bg-panel: #111827;
    --bg-card: #1f2937;
    --bg-accent: #374151;

    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;

    --accent-blue: #3b82f6;
    --accent-cyan: #06b6d4;
    --accent-green: #10b981;
    --accent-orange: #f59e0b;
    --accent-red: #ef4444;
    --accent-purple: #8b5cf6;

    --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
    --gradient-launch: linear-gradient(135deg, #ef4444 0%, #f59e0b 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(59, 130, 246, 0.3);

    /* Borders */
    --border-color: #374151;
    --border-radius: 8px;
    --border-radius-lg: 12px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    overflow: hidden;
}

/* ========================================
   Layout
   ======================================== */

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 24px;
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
}

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

.logo-icon {
    font-size: 28px;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-5px);
    }
}

.logo h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 1px;
}

.header-stats {
    display: flex;
    gap: 16px;
}

.stat-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 6px 16px;
    background: var(--bg-card);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.stat-label {
    font-size: 10px;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 1px;
}

.stat-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 14px;
    font-weight: 700;
    color: var(--accent-cyan);
}

.status-badge.ready .stat-value {
    color: var(--accent-green);
}

.status-badge.launching .stat-value {
    color: var(--accent-orange);
    animation: pulse 1s infinite;
}

.status-badge.burning .stat-value {
    color: var(--accent-red);
    animation: pulse 0.5s infinite;
}

.status-badge.coasting .stat-value {
    color: var(--accent-blue);
}

.status-badge.complete .stat-value {
    color: var(--accent-purple);
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

/* Main Content */
.main-content {
    display: grid;
    grid-template-columns: 280px 1fr 320px;
    flex: 1;
    overflow: hidden;
}

/* ========================================
   Panels
   ======================================== */

.config-panel,
.charts-panel {
    background: var(--bg-panel);
    padding: 16px;
    overflow-y: auto;
    border-right: 1px solid var(--border-color);
}

.charts-panel {
    border-right: none;
    border-left: 1px solid var(--border-color);
}

.panel-section {
    margin-bottom: 20px;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: 'Orbitron', sans-serif;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
}

.icon {
    font-size: 16px;
}

/* Configuration */
.config-group {
    margin-bottom: 16px;
}

.config-label {
    display: block;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.config-select {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 13px;
    cursor: pointer;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.config-select:hover {
    border-color: var(--accent-blue);
}

.config-select:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-glow);
}

.slider-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.config-slider {
    flex: 1;
    -webkit-appearance: none;
    height: 6px;
    background: var(--bg-accent);
    border-radius: 3px;
    cursor: pointer;
}

.config-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    background: var(--gradient-primary);
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.2s;
}

.config-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.slider-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 12px;
    color: var(--accent-cyan);
    min-width: 50px;
    text-align: right;
}

/* Rocket Specs */
.specs-container {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 12px;
    border: 1px solid var(--border-color);
}

.spec-stage {
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px dashed var(--border-color);
}

.spec-stage:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.spec-stage-name {
    font-family: 'Orbitron', sans-serif;
    font-size: 11px;
    font-weight: 700;
    color: var(--accent-cyan);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.spec-stage-name::before {
    content: '▸';
    color: var(--accent-orange);
}

.spec-row {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    margin-bottom: 4px;
}

.spec-label {
    color: var(--text-muted);
}

.spec-value {
    color: var(--text-secondary);
    font-family: 'Roboto Mono', monospace;
}

/* Buttons */
.controls-section {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 20px;
    border: none;
    border-radius: var(--border-radius);
    font-family: 'Orbitron', sans-serif;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-icon {
    font-size: 18px;
}

.btn-launch {
    background: var(--gradient-launch);
    color: white;
    box-shadow: var(--shadow-md), 0 0 20px rgba(239, 68, 68, 0.3);
}

.btn-launch:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 0 30px rgba(239, 68, 68, 0.5);
}

.btn-launch:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-reset {
    background: var(--bg-card);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-reset:hover {
    background: var(--bg-accent);
    color: var(--text-primary);
}

/* ========================================
   Visualization Panel
   ======================================== */

.visualization-panel {
    position: relative;
    background: linear-gradient(to bottom, #0a1628 0%, #1a0a28 100%);
    overflow: hidden;
}

.canvas-container {
    position: relative;
    width: 100%;
    height: 100%;
}

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

.altitude-scale {
    position: absolute;
    right: 16px;
    top: 80px;
    bottom: 120px;
    width: 60px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    pointer-events: none;
}

.altitude-marker {
    font-family: 'Orbitron', sans-serif;
    font-size: 10px;
    color: var(--text-muted);
    text-align: right;
    padding-right: 8px;
    border-right: 2px solid var(--text-muted);
}

/* Telemetry Overlay */
.telemetry-overlay {
    position: absolute;
    top: 16px;
    left: 16px;
    right: 90px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}

.telemetry-row {
    display: flex;
    gap: 12px;
}

.telemetry-item {
    display: flex;
    flex-direction: column;
    padding: 8px 14px;
    background: rgba(17, 24, 39, 0.85);
    backdrop-filter: blur(8px);
    border-radius: var(--border-radius);
    border: 1px solid rgba(59, 130, 246, 0.3);
    min-width: 90px;
}

.telemetry-item.highlight {
    border-color: var(--accent-orange);
    background: rgba(245, 158, 11, 0.1);
}

.telem-label {
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
}

.telem-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 16px;
    font-weight: 700;
    color: var(--accent-cyan);
}

.telemetry-item.highlight .telem-value {
    color: var(--accent-orange);
}

/* Event Log */
.event-log {
    position: absolute;
    bottom: 16px;
    left: 16px;
    right: 16px;
    max-height: 100px;
    overflow-y: auto;
    background: rgba(17, 24, 39, 0.9);
    backdrop-filter: blur(8px);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    padding: 8px 12px;
}

.event-item {
    display: flex;
    gap: 12px;
    font-size: 11px;
    padding: 4px 0;
    border-bottom: 1px solid rgba(55, 65, 81, 0.5);
}

.event-item:last-child {
    border-bottom: none;
}

.event-time {
    font-family: 'Orbitron', sans-serif;
    color: var(--accent-orange);
    min-width: 60px;
}

.event-text {
    color: var(--text-secondary);
}

.event-item.stage-sep .event-text {
    color: var(--accent-purple);
    font-weight: 500;
}

.event-item.maxq .event-text {
    color: var(--accent-red);
    font-weight: 500;
}

.event-item.complete .event-text {
    color: var(--accent-green);
    font-weight: 500;
}

/* ========================================
   Charts Panel
   ======================================== */

.chart-container {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 12px;
    margin-bottom: 12px;
    border: 1px solid var(--border-color);
}

.chart-title {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.chart-container canvas {
    width: 100% !important;
    height: 80px !important;
}

/* Results */
.results-container {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 16px;
    border: 1px solid var(--accent-green);
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.2);
}

.result-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px dashed var(--border-color);
}

.result-row:last-child {
    border-bottom: none;
}

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

.result-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 13px;
    color: var(--accent-cyan);
}

.result-row.highlight .result-value {
    color: var(--accent-green);
    font-size: 15px;
}

/* ========================================
   Scrollbar
   ======================================== */

::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-accent);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-blue);
}

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 1200px) {
    .main-content {
        grid-template-columns: 260px 1fr 280px;
    }
}

@media (max-width: 900px) {
    .main-content {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr auto;
    }

    .config-panel,
    .charts-panel {
        border: none;
        border-bottom: 1px solid var(--border-color);
    }

    .visualization-panel {
        min-height: 400px;
    }
}

/* ========================================
   Mode Toggle Navigation
   ======================================== */

.mode-toggle {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.mode-btn {
    flex: 1;
    padding: 10px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    font-family: 'Orbitron', sans-serif;
    font-size: 11px;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    text-align: center;
}

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

.mode-btn.active {
    background: var(--gradient-primary);
    border-color: var(--accent-cyan);
    color: white;
}

/* ========================================
   Orbital Data Display
   ======================================== */

.orbital-data {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-top: 12px;
}

.orbital-item {
    background: var(--bg-card);
    padding: 8px 10px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.orbital-item.full-width {
    grid-column: 1 / -1;
}

.orbital-label {
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

.orbital-value {
    font-family: 'Orbitron', sans-serif;
    font-size: 14px;
    color: var(--accent-cyan);
}

.orbital-value.success {
    color: var(--accent-green);
}

.orbital-value.warning {
    color: var(--accent-orange);
}

/* ========================================
   Pitch Gauge
   ======================================== */

.pitch-gauge {
    margin-top: 16px;
    padding: 12px;
    background: var(--bg-card);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.pitch-visual {
    position: relative;
    height: 80px;
    margin-top: 8px;
    background: var(--bg-dark);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.horizon-line {
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    height: 2px;
    background: var(--accent-blue);
}

.pitch-indicator {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 40px;
    height: 4px;
    background: var(--accent-orange);
    transform-origin: left center;
    border-radius: 2px;
}

.pitch-labels {
    display: flex;
    justify-content: space-between;
    font-size: 9px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ========================================
   Spec Groups
   ======================================== */

.spec-group {
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px dashed var(--border-color);
}

.spec-group:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.spec-header {
    font-family: 'Orbitron', sans-serif;
    font-size: 11px;
    font-weight: 700;
    color: var(--accent-cyan);
    margin-bottom: 8px;
}

.spec-header::before {
    content: '▸ ';
    color: var(--accent-orange);
}

/* ========================================
   Trajectory Canvas
   ======================================== */

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

/* ========================================
   Help Modal
   ======================================== */

.help-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.help-content {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
}

.help-content h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 16px;
    color: var(--accent-cyan);
    margin-bottom: 20px;
    text-align: center;
}

.shortcut-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 20px;
}

.shortcut-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.shortcut-item kbd {
    display: inline-block;
    padding: 4px 10px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: 'Orbitron', sans-serif;
    font-size: 11px;
    color: var(--accent-orange);
    min-width: 45px;
    text-align: center;
}

.shortcut-item span {
    font-size: 12px;
    color: var(--text-secondary);
}

.help-content .btn {
    width: 100%;
    margin-top: 8px;
}