/* Embedding Space Explorer — Style Sheet */
/* Design language matches neural-network-numbers & neural-network-driving */

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

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --border-color: #2a2a3a;
    --accent-cyan: #00f5ff;
    --accent-magenta: #ff00aa;
    --accent-yellow: #f5ff00;
    --accent-green: #00ff88;
    --text-primary: #ffffff;
    --text-secondary: #8888aa;
    --text-muted: #555566;
    --glass-bg: rgba(10, 10, 15, 0.75);
    --glass-border: rgba(255, 255, 255, 0.08);
}

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

body {
    font-family: 'Space Grotesk', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow: hidden;
    height: 100vh;
    width: 100vw;
}

/* ── Header ─────────────────────────────────────── */

.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 24px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
    z-index: 100;
    position: relative;
}

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

.logo-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-magenta));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.logo h1 {
    font-size: 18px;
    font-weight: 600;
    letter-spacing: -0.5px;
}

.logo h1 span {
    color: var(--accent-cyan);
}

.logo .subtitle {
    font-size: 11px;
    color: var(--text-secondary);
    font-weight: 400;
}

.header-controls {
    display: flex;
    gap: 8px;
    align-items: center;
}

.header-btn {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    padding: 6px 14px;
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

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

.header-btn.active {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    background: rgba(0, 245, 255, 0.08);
}

/* ── Main Layout ────────────────────────────────── */

.main-layout {
    display: grid;
    grid-template-columns: 1fr 350px;
    height: calc(100vh - 53px);
}

/* ── Scene Area ─────────────────────────────────── */

.scene-area {
    position: relative;
    overflow: hidden;
}

#three-container {
    width: 100%;
    height: 100%;
}

#three-container canvas {
    display: block;
}

/* ── Scene Overlay ──────────────────────────────── */

.scene-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    pointer-events: none;
    padding: 16px;
    z-index: 10;
}

.search-container {
    pointer-events: all;
    position: relative;
    max-width: 400px;
}

.search-box {
    width: 100%;
    padding: 10px 16px 10px 40px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-primary);
    outline: none;
    transition: border-color 0.2s;
}

.search-box::placeholder {
    color: var(--text-muted);
}

.search-box:focus {
    border-color: var(--accent-cyan);
}

.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 14px;
    pointer-events: none;
}

.search-dropdown {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    overflow: hidden;
    display: none;
    z-index: 20;
}

.search-dropdown.visible {
    display: block;
}

.search-item {
    padding: 8px 16px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    cursor: pointer;
    transition: background 0.15s;
    display: flex;
    align-items: center;
    gap: 8px;
}

.search-item:hover,
.search-item.selected {
    background: rgba(0, 245, 255, 0.1);
}

.search-item .cat-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* ── Stat Badges (scene overlay) ────────────────── */

.stat-badges {
    display: flex;
    gap: 8px;
    margin-top: 12px;
    pointer-events: all;
    flex-wrap: wrap;
}

.stat-badge {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    padding: 4px 10px;
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--glass-border);
    border-radius: 4px;
    color: var(--text-secondary);
}

.stat-badge .value {
    color: var(--accent-cyan);
    font-weight: 500;
}

/* ── Info Panel (right sidebar) ─────────────────── */

.info-panel {
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.panel-section {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.panel-section:last-child {
    border-bottom: none;
}

.panel-title {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    margin-bottom: 12px;
    font-weight: 500;
}

/* Selected word display */
.selected-word {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 8px;
    color: var(--accent-cyan);
    text-shadow: 0 0 20px rgba(0, 245, 255, 0.3);
}

.selected-word.empty {
    font-size: 14px;
    font-weight: 400;
    color: var(--text-muted);
    text-shadow: none;
}

.category-badge {
    display: inline-block;
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    padding: 3px 10px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
}

/* Category colors */
.cat-nature      { background: rgba(0, 255, 136, 0.15); color: var(--accent-green); border: 1px solid rgba(0, 255, 136, 0.25); }
.cat-technology  { background: rgba(0, 245, 255, 0.15); color: var(--accent-cyan); border: 1px solid rgba(0, 245, 255, 0.25); }
.cat-people      { background: rgba(255, 0, 170, 0.15); color: var(--accent-magenta); border: 1px solid rgba(255, 0, 170, 0.25); }
.cat-emotion     { background: rgba(245, 255, 0, 0.15); color: var(--accent-yellow); border: 1px solid rgba(245, 255, 0, 0.25); }
.cat-action      { background: rgba(255, 140, 0, 0.15); color: #ff8c00; border: 1px solid rgba(255, 140, 0, 0.25); }
.cat-science     { background: rgba(160, 100, 255, 0.15); color: #a064ff; border: 1px solid rgba(160, 100, 255, 0.25); }
.cat-place       { background: rgba(255, 100, 100, 0.15); color: #ff6464; border: 1px solid rgba(255, 100, 100, 0.25); }
.cat-time        { background: rgba(100, 200, 255, 0.15); color: #64c8ff; border: 1px solid rgba(100, 200, 255, 0.25); }
.cat-food        { background: rgba(255, 180, 50, 0.15); color: #ffb432; border: 1px solid rgba(255, 180, 50, 0.25); }
.cat-body        { background: rgba(255, 140, 180, 0.15); color: #ff8cb4; border: 1px solid rgba(255, 140, 180, 0.25); }
.cat-abstract    { background: rgba(200, 200, 255, 0.15); color: #c8c8ff; border: 1px solid rgba(200, 200, 255, 0.25); }
.cat-general     { background: rgba(150, 150, 170, 0.15); color: #9696aa; border: 1px solid rgba(150, 150, 170, 0.25); }

.cat-dot-nature      { background: var(--accent-green); }
.cat-dot-technology  { background: var(--accent-cyan); }
.cat-dot-people      { background: var(--accent-magenta); }
.cat-dot-emotion     { background: var(--accent-yellow); }
.cat-dot-action      { background: #ff8c00; }
.cat-dot-science     { background: #a064ff; }
.cat-dot-place       { background: #ff6464; }
.cat-dot-time        { background: #64c8ff; }
.cat-dot-food        { background: #ffb432; }
.cat-dot-body        { background: #ff8cb4; }
.cat-dot-abstract    { background: #c8c8ff; }
.cat-dot-general     { background: #9696aa; }

/* Neighbors list */
.neighbors-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.neighbor-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.15s;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
}

.neighbor-item:hover {
    background: rgba(0, 245, 255, 0.08);
}

.neighbor-rank {
    color: var(--text-muted);
    font-size: 10px;
    width: 18px;
    text-align: right;
    flex-shrink: 0;
}

.neighbor-word {
    color: var(--text-primary);
}

.neighbor-sim {
    margin-left: auto;
    color: var(--text-muted);
    font-size: 10px;
}

/* ── Arithmetic Panel ───────────────────────────── */

.analogy-buttons {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.analogy-btn {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    text-align: left;
}

.analogy-btn:hover {
    border-color: var(--accent-magenta);
    color: var(--accent-magenta);
    background: rgba(255, 0, 170, 0.05);
}

.analogy-btn.playing {
    border-color: var(--accent-yellow);
    color: var(--accent-yellow);
    background: rgba(245, 255, 0, 0.08);
}

.arithmetic-status {
    margin-top: 10px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--text-muted);
    min-height: 20px;
}

/* ── Info Cards (bottom overlay) ────────────────── */

.info-cards-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    pointer-events: none;
    z-index: 10;
}

.info-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    padding: 16px;
    pointer-events: all;
}

.info-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 16px;
}

.info-card h3 {
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.info-card h3 .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    flex-shrink: 0;
}

.info-card p {
    font-size: 11px;
    line-height: 1.6;
    color: var(--text-secondary);
}

.info-card code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    color: var(--accent-cyan);
    background: rgba(0, 245, 255, 0.08);
    padding: 1px 5px;
    border-radius: 3px;
}

/* ── Category Legend ────────────────────────────── */

.legend-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    color: var(--text-secondary);
    padding: 3px 0;
}

.legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* ── CSS2D Labels ───────────────────────────────── */

.word-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    color: rgba(255, 255, 255, 0.6);
    text-shadow: 0 0 4px rgba(0, 0, 0, 0.8);
    pointer-events: none;
    white-space: nowrap;
    user-select: none;
    transition: color 0.3s, text-shadow 0.3s;
}

.word-label.highlight {
    color: var(--accent-cyan);
    font-size: 12px;
    font-weight: 600;
    text-shadow: 0 0 10px rgba(0, 245, 255, 0.5), 0 0 4px rgba(0, 0, 0, 0.8);
}

.word-label.neighbor-highlight {
    color: rgba(255, 255, 255, 0.85);
    font-size: 11px;
    text-shadow: 0 0 6px rgba(0, 245, 255, 0.3), 0 0 4px rgba(0, 0, 0, 0.8);
}

.word-label.arithmetic-highlight {
    color: var(--accent-yellow);
    font-size: 13px;
    font-weight: 600;
    text-shadow: 0 0 12px rgba(245, 255, 0, 0.5), 0 0 4px rgba(0, 0, 0, 0.8);
}

/* ── Scrollbar ──────────────────────────────────── */

.info-panel::-webkit-scrollbar {
    width: 4px;
}

.info-panel::-webkit-scrollbar-track {
    background: transparent;
}

.info-panel::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 2px;
}

/* ── Empty State ────────────────────────────────── */

.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
    font-size: 12px;
    line-height: 1.8;
}

.empty-state .hint {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px;
    margin-top: 8px;
}