/* ============================================
   Scout 3D — Design System
   Dark cyberpunk theme (IPS Lab 系統)
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
    --font-sans: 'Inter', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-card: #1a2035;
    --bg-card-hover: #1f2847;
    --bg-glass: rgba(26, 32, 53, 0.88);
    --bg-overlay: rgba(10, 14, 26, 0.92);

    --text-primary: #e8ecf4;
    --text-secondary: #8b95a8;
    --text-muted: #5a6478;
    --text-accent: #64d2ff;

    --accent-blue: #3b82f6;
    --accent-cyan: #06b6d4;
    --accent-green: #10b981;
    --accent-yellow: #f59e0b;
    --accent-orange: #f97316;
    --accent-red: #ef4444;
    --accent-purple: #8b5cf6;

    --gradient-blue: linear-gradient(135deg, #3b82f6, #06b6d4);
    --gradient-purple: linear-gradient(135deg, #8b5cf6, #06b6d4);
    --gradient-scout: linear-gradient(135deg, #06b6d4, #10b981);
    --gradient-guide: linear-gradient(135deg, #8b5cf6, #ec4899);

    --border-color: rgba(59, 130, 246, 0.15);
    --border-glow: rgba(6, 182, 212, 0.4);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;

    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;

    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
    --transition-fast: 0.15s ease;
    --transition-slow: 0.3s ease;
}

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

html,
body {
    height: 100%;
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow: hidden;
}

/* ===== Layout ===== */
.app-layout {
    display: grid;
    grid-template-rows: auto 1fr;
    grid-template-columns: 1fr 340px;
    height: 100vh;
}

.app-header {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px var(--space-lg);
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 100;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    color: var(--text-primary);
}

.header-brand svg {
    width: 32px;
    height: 32px;
}

.header-title {
    font-size: 1.05rem;
    font-weight: 800;
    background: var(--gradient-purple);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-subtitle {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* --- Mode Switcher --- */
.mode-switcher {
    display: flex;
    gap: 6px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 3px;
}

.mode-btn {
    padding: 7px 20px;
    border-radius: 18px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 600;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.mode-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.mode-btn.active[data-mode="scout"] {
    background: var(--gradient-scout);
    color: #fff;
    box-shadow: 0 2px 12px rgba(6, 182, 212, 0.3);
}

.mode-btn.active[data-mode="guide"] {
    background: var(--gradient-guide);
    color: #fff;
    box-shadow: 0 2px 12px rgba(139, 92, 246, 0.3);
}

/* --- Layout Selector --- */
.layout-select-wrap {
    display: flex;
    align-items: center;
    gap: 6px;
}

.layout-label {
    font-size: 1.1rem;
}

.layout-select {
    padding: 6px 12px;
    border-radius: var(--radius-xl);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    font-size: 0.78rem;
    font-family: var(--font-sans);
    font-weight: 600;
    cursor: pointer;
    transition: border-color var(--transition-fast);
}

.layout-select:hover {
    border-color: var(--border-glow);
}

.layout-select:focus {
    outline: none;
    border-color: var(--accent-cyan);
}

.layout-select option {
    background: #1a1a2e;
    color: #fff;
}

/* --- Status Chip --- */
.status-chip {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 14px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-green);
    animation: pulse 2s ease infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4);
    }

    50% {
        opacity: 0.7;
        box-shadow: 0 0 0 6px rgba(16, 185, 129, 0);
    }
}

/* ===== 3D Viewport ===== */
.viewport {
    position: relative;
    overflow: hidden;
    background: #050810;
}

.viewport canvas {
    display: block;
    width: 100%;
    height: 100%;
}

/* --- Minimap overlay --- */
.minimap {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    width: 200px;
    height: 200px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    background: rgba(10, 14, 26, 0.85);
    backdrop-filter: blur(10px);
    z-index: 10;
}

.minimap canvas {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-lg);
}

/* --- 3D HUD overlays --- */
.hud-overlay {
    position: absolute;
    bottom: var(--space-lg);
    left: var(--space-lg);
    display: flex;
    gap: var(--space-md);
    z-index: 10;
}

.hud-card {
    background: var(--bg-overlay);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 10px 16px;
    min-width: 120px;
}

.hud-label {
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 2px;
}

.hud-value {
    font-size: 0.95rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--accent-cyan);
}

/* ===== Side Panel ===== */
.side-panel {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    overflow-y: auto;
}

.panel-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    transition: border-color var(--transition-slow);
}

.panel-card:hover {
    border-color: var(--border-glow);
}

.panel-card-title {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
    display: flex;
    align-items: center;
    gap: 6px;
}

/* --- Sensor Rows --- */
.sensor-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    padding: 5px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

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

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

.sensor-value {
    color: var(--accent-cyan);
    font-weight: 600;
    font-family: var(--font-mono);
}

/* --- Progress Bar --- */
.progress-wrap {
    margin-top: var(--space-sm);
}

.progress-track {
    height: 5px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    border-radius: 3px;
    background: var(--gradient-scout);
    transition: width 0.4s ease;
    width: 0%;
}

/* --- Buttons --- */
.btn {
    padding: 10px 20px;
    border-radius: var(--radius-xl);
    border: none;
    font-family: var(--font-sans);
    font-weight: 700;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: 100%;
}

.btn-scout {
    background: var(--gradient-scout);
    color: #fff;
}

.btn-scout:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(6, 182, 212, 0.3);
}

.btn-guide {
    background: var(--gradient-guide);
    color: #fff;
}

.btn-guide:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(139, 92, 246, 0.3);
}

.btn-reset {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-reset:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

/* --- Destination Select --- */
.dest-select {
    width: 100%;
    padding: 9px 12px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.85rem;
    font-family: var(--font-sans);
    cursor: pointer;
}

.dest-select option {
    background: #1a1a2e;
    color: #fff;
}

/* --- Log Area --- */
.log-area {
    font-size: 0.75rem;
    font-family: var(--font-mono);
    color: var(--text-secondary);
    max-height: 200px;
    overflow-y: auto;
    line-height: 1.9;
    padding: var(--space-sm);
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-sm);
}

.log-area div {
    padding: 1px 0;
}

.log-area .log-scout {
    color: var(--accent-cyan);
}

.log-area .log-guide {
    color: var(--accent-purple);
}

.log-area .log-warn {
    color: var(--accent-yellow);
}

/* --- Voice Toggle --- */
.voice-row {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.82rem;
}

.voice-row input[type="checkbox"] {
    accent-color: var(--accent-purple);
    width: 16px;
    height: 16px;
}

/* --- Match Bar --- */
.match-wrap {
    margin-top: var(--space-xs);
}

.match-track {
    height: 6px;
    border-radius: 3px;
    background: rgba(255, 255, 255, 0.06);
    overflow: hidden;
}

.match-fill {
    height: 100%;
    border-radius: 3px;
    background: var(--gradient-guide);
    transition: width 0.4s ease;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
    .app-layout {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr auto;
    }

    .side-panel {
        border-left: none;
        border-top: 1px solid var(--border-color);
        max-height: 40vh;
    }

    .minimap {
        width: 140px;
        height: 140px;
    }

    .ai-panel {
        width: 100%;
        height: 50vh;
        right: 0;
        bottom: 0;
        top: auto;
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        border-right: none;
        border-bottom: none;
        transform: translateY(100%);
    }

    .ai-panel.open {
        transform: translateY(0);
    }
}

/* ===== AI Assistant ===== */
.ai-toggle-btn {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 500;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    border: none;
    background: var(--gradient-purple);
    color: #fff;
    font-size: 1.4rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
    transition: all var(--transition-fast);
    animation: ai-pulse 3s ease-in-out infinite;
}

.ai-toggle-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 28px rgba(139, 92, 246, 0.5);
}

.ai-toggle-btn.active {
    animation: none;
    background: var(--accent-red);
    box-shadow: 0 4px 20px rgba(239, 68, 68, 0.3);
}

@keyframes ai-pulse {

    0%,
    100% {
        box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
    }

    50% {
        box-shadow: 0 4px 28px rgba(139, 92, 246, 0.7);
    }
}

/* --- Panel --- */
.ai-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: 380px;
    height: 100vh;
    z-index: 600;
    display: flex;
    flex-direction: column;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    backdrop-filter: blur(20px);
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.ai-panel.open {
    transform: translateX(0);
}

.ai-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px var(--space-md);
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-glass);
    flex-shrink: 0;
}

.ai-panel-title {
    font-size: 0.9rem;
    font-weight: 700;
    background: var(--gradient-purple);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.ai-panel-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.ai-panel-close:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.06);
}

/* --- Messages --- */
.ai-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.ai-msg {
    display: flex;
    gap: var(--space-sm);
    max-width: 92%;
    animation: ai-fade-in 0.25s ease;
}

.ai-msg-user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.ai-msg-ai {
    align-self: flex-start;
}

.ai-msg-role {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
}

.ai-msg-body {
    padding: 10px 14px;
    border-radius: var(--radius-md);
    font-size: 0.82rem;
    line-height: 1.7;
    word-break: break-word;
}

.ai-msg-user .ai-msg-body {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.25), rgba(6, 182, 212, 0.2));
    border: 1px solid rgba(139, 92, 246, 0.2);
    color: var(--text-primary);
}

.ai-msg-ai .ai-msg-body {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.ai-msg-body code {
    background: rgba(0, 0, 0, 0.3);
    padding: 1px 5px;
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 0.78rem;
}

@keyframes ai-fade-in {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* --- Loading Dots --- */
.ai-dots {
    display: flex;
    gap: 4px;
    padding: 4px 0;
}

.ai-dots span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--text-muted);
    animation: ai-dot-bounce 1.2s ease-in-out infinite;
}

.ai-dots span:nth-child(2) {
    animation-delay: 0.15s;
}

.ai-dots span:nth-child(3) {
    animation-delay: 0.3s;
}

@keyframes ai-dot-bounce {

    0%,
    80%,
    100% {
        transform: scale(0.6);
        opacity: 0.4;
    }

    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* --- Input --- */
.ai-input-wrap {
    display: flex;
    gap: var(--space-sm);
    padding: var(--space-md);
    border-top: 1px solid var(--border-color);
    background: var(--bg-glass);
    flex-shrink: 0;
}

.ai-input {
    flex: 1;
    padding: 10px 14px;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
    font-size: 0.85rem;
    font-family: var(--font-sans);
    outline: none;
    transition: border-color var(--transition-fast);
}

.ai-input:focus {
    border-color: var(--accent-purple);
}

.ai-input::placeholder {
    color: var(--text-muted);
}

.ai-send-btn {
    padding: 8px 18px;
    border-radius: var(--radius-xl);
    border: none;
    background: var(--gradient-purple);
    color: #fff;
    font-size: 0.8rem;
    font-weight: 700;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.ai-send-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(139, 92, 246, 0.3);
}

/* ── Hamburger Menu ── */
.hamburger-btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    padding: 6px;
    background: transparent;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.hamburger-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-secondary);
    border-radius: 2px;
    transition: all 0.25s ease;
}

.hamburger-btn:hover {
    border-color: var(--accent-cyan);
}

.hamburger-btn:hover span {
    background: var(--accent-cyan);
}

.hamburger-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger-btn.active span:nth-child(2) {
    opacity: 0;
}

.hamburger-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Slide-out menu */
.menu-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 998;
}

.menu-overlay.active {
    display: block;
}

.slide-menu {
    position: fixed;
    top: 0;
    left: -280px;
    width: 280px;
    height: 100vh;
    background: linear-gradient(180deg, #1a2744 0%, #0f1a2e 100%);
    border-right: 2px solid var(--accent-cyan);
    box-shadow: 6px 0 40px rgba(6, 182, 212, 0.15), 4px 0 20px rgba(0, 0, 0, 0.7);
    z-index: 999;
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
}

.slide-menu.active {
    left: 0;
}

.slide-menu-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--border-subtle);
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-primary);
}

.slide-menu-list {
    list-style: none;
    margin: 0;
    padding: var(--space-sm) 0;
}

.slide-menu-item {
    padding: var(--space-sm) var(--space-lg);
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.slide-menu-item:hover:not(.disabled) {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.slide-menu-item.disabled {
    opacity: 0.5;
    cursor: default;
}

.slide-menu-section {
    padding: var(--space-md) var(--space-lg);
}

.slide-menu-section-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.slide-menu-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.slider {
    display: block;
    width: 100%;
    margin-top: 4px;
    accent-color: var(--accent);
    cursor: pointer;
}

/* ── Obstacle Placement Button ── */
.place-obstacle-btn {
    padding: 6px 14px;
    background: transparent;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.place-obstacle-btn:hover {
    border-color: var(--accent-orange);
    color: var(--accent-orange);
}

.place-obstacle-btn.active {
    background: rgba(249, 115, 22, 0.2);
    border-color: var(--accent-orange);
    color: var(--accent-orange);
    box-shadow: 0 0 12px rgba(249, 115, 22, 0.3);
}

/* ── Auto Demo Button ── */
.auto-demo-btn {
    padding: 10px 24px;
    background: linear-gradient(135deg, #a855f7, #ec4899, #f97316);
    background-size: 200% 200%;
    animation: demo-gradient 3s ease infinite, demo-glow 2s ease-in-out infinite;
    border: none;
    border-radius: var(--radius-md);
    color: #fff;
    font-family: var(--font-sans);
    font-size: 1.0rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.auto-demo-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 0 24px rgba(168, 85, 247, 0.7), 0 0 48px rgba(236, 72, 153, 0.4);
}

.auto-demo-btn.running {
    background: linear-gradient(135deg, #ef4444, #f97316);
    background-size: 100% 100%;
    animation: demo-glow-red 1s ease-in-out infinite;
}

@keyframes demo-gradient {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

@keyframes demo-glow {

    0%,
    100% {
        box-shadow: 0 0 8px rgba(168, 85, 247, 0.4), 0 0 20px rgba(236, 72, 153, 0.2);
    }

    50% {
        box-shadow: 0 0 20px rgba(168, 85, 247, 0.7), 0 0 40px rgba(236, 72, 153, 0.5);
    }
}

@keyframes demo-glow-red {

    0%,
    100% {
        box-shadow: 0 0 8px rgba(239, 68, 68, 0.4);
    }

    50% {
        box-shadow: 0 0 20px rgba(239, 68, 68, 0.7);
    }
}