/* ============================================
   3D Gallery - Virtual Museum Styles
   ============================================ */

:root {
    --hud-bg: rgba(0, 0, 0, 0.6);
    --hud-border: rgba(255, 255, 255, 0.1);
    --hud-text: rgba(255, 255, 255, 0.9);
    --hud-accent: #00ffaa;
    --hud-warning: #ff6b35;
    --font-mono: 'JetBrains Mono', monospace;
    --font-ui: 'Outfit', 'Inter', sans-serif;
}

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

body {
    overflow: hidden;
    background: #000;
    font-family: var(--font-ui);
    color: white;
    cursor: none;
    user-select: none;
}

canvas {
    display: block;
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: #0a0514;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.8s ease;
}

.loading-screen.fade-out {
    opacity: 0;
    pointer-events: none;
}

.loading-content {
    text-align: center;
}

.loading-logo svg {
    width: 48px;
    height: 48px;
    animation: pulse-glow 2s ease-in-out infinite;
    margin-bottom: 24px;
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.5; filter: drop-shadow(0 0 8px rgba(0, 255, 170, 0.3)); }
    50% { opacity: 1; filter: drop-shadow(0 0 20px rgba(0, 255, 170, 0.8)); }
}

.loading-title {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    letter-spacing: 0.3em;
    margin-bottom: 8px;
}

.loading-subtitle {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 32px;
}

.loading-bar {
    width: 240px;
    height: 2px;
    background: rgba(255, 255, 255, 0.1);
    margin: 0 auto 16px;
    border-radius: 1px;
    overflow: hidden;
}

.loading-bar-fill {
    height: 100%;
    width: 0%;
    background: var(--hud-accent);
    transition: width 0.3s ease;
}

.loading-status {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.4);
}

/* Start Screen */
.start-screen {
    position: fixed;
    inset: 0;
    z-index: 900;
    background: rgba(10, 5, 20, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(20px);
    animation: fadeIn 0.5s ease;
}

.start-content {
    text-align: center;
    max-width: 480px;
    padding: 20px;
}

.start-content h1 {
    font-family: var(--font-mono);
    font-size: 2rem;
    letter-spacing: 0.2em;
    margin-bottom: 12px;
    background: linear-gradient(135deg, #fff, var(--hud-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.start-content > p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 32px;
    line-height: 1.6;
}

.controls-guide {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 40px;
    text-align: left;
}

.control-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
}

.control-item kbd {
    display: inline-block;
    padding: 3px 8px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    min-width: 28px;
    text-align: center;
}

.start-button {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 40px;
    background: linear-gradient(135deg, var(--hud-accent), #00cc88);
    color: #000;
    border: none;
    border-radius: 8px;
    font-family: var(--font-ui);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.start-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0, 255, 170, 0.3);
}

.start-button svg {
    width: 20px;
    height: 20px;
}

/* HUD */
.hud {
    position: fixed;
    inset: 0;
    z-index: 100;
    pointer-events: none;
}

.hud > * {
    pointer-events: auto;
}

.hidden {
    display: none !important;
}

/* Crosshair */
.crosshair {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 20px;
    color: rgba(255, 255, 255, 0.5);
    font-family: var(--font-mono);
    pointer-events: none;
    text-shadow: 0 0 4px rgba(0, 0, 0, 0.8);
}

/* Top bar */
.hud-top {
    position: absolute;
    top: 16px;
    left: 16px;
    right: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    pointer-events: none;
}

.hud-location, .hud-score {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--hud-bg);
    border: 1px solid var(--hud-border);
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    backdrop-filter: blur(8px);
}

.location-icon svg, .score-icon svg {
    width: 16px;
    height: 16px;
}

.score-icon svg {
    stroke: var(--hud-accent);
}

#scoreValue {
    color: var(--hud-accent);
    font-weight: 600;
}

/* Discovery bar */
.hud-discovery {
    position: absolute;
    top: 60px;
    right: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: var(--hud-bg);
    border: 1px solid var(--hud-border);
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    backdrop-filter: blur(8px);
}

.discovery-bar {
    width: 80px;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
}

.discovery-fill {
    height: 100%;
    width: 0%;
    background: var(--hud-accent);
    transition: width 0.5s ease;
}

.discovery-label {
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.1em;
}

.discovery-count {
    color: var(--hud-accent);
}

/* Interaction prompt */
.interaction-prompt {
    position: absolute;
    bottom: 120px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    background: var(--hud-bg);
    border: 1px solid var(--hud-accent);
    border-radius: 8px;
    font-size: 0.85rem;
    backdrop-filter: blur(8px);
    animation: prompt-pulse 2s ease-in-out infinite;
}

@keyframes prompt-pulse {
    0%, 100% { border-color: rgba(0, 255, 170, 0.3); }
    50% { border-color: rgba(0, 255, 170, 0.8); }
}

.interaction-prompt kbd {
    padding: 4px 10px;
    background: var(--hud-accent);
    color: #000;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.8rem;
}

/* Minimap */
.minimap {
    position: absolute;
    bottom: 16px;
    right: 16px;
    width: 160px;
    height: 160px;
    background: var(--hud-bg);
    border: 1px solid var(--hud-border);
    border-radius: 8px;
    backdrop-filter: blur(8px);
}

/* Artist Panel */
.artist-panel {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 480px;
    max-width: 90vw;
    max-height: 80vh;
    overflow-y: auto;
    background: rgba(10, 5, 20, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 16px;
    padding: 32px;
    backdrop-filter: blur(20px);
    animation: panelIn 0.3s ease;
}

@keyframes panelIn {
    from { opacity: 0; transform: translate(-50%, -50%) scale(0.95); }
    to { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}

.panel-close {
    position: absolute;
    top: 12px;
    right: 16px;
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.5);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 4px 8px;
}

.panel-close:hover {
    color: white;
}

.panel-header {
    margin-bottom: 16px;
}

.panel-header h2 {
    font-family: var(--font-mono);
    font-size: 1.4rem;
    letter-spacing: 0.1em;
    margin-bottom: 4px;
}

.panel-theme {
    font-size: 0.8rem;
    color: var(--hud-accent);
    font-family: var(--font-mono);
}

.panel-colors {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.panel-color-dot {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.panel-description {
    font-size: 0.85rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
}

.panel-artwork {
    margin-bottom: 16px;
    border-radius: 8px;
    overflow: hidden;
}

.panel-artwork img {
    width: 100%;
    display: block;
    border-radius: 8px;
}

.panel-view-btn {
    display: inline-block;
    padding: 10px 24px;
    background: linear-gradient(135deg, var(--hud-accent), #00cc88);
    color: #000;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.85rem;
    transition: transform 0.2s;
}

.panel-view-btn:hover {
    transform: translateY(-1px);
}

/* Back button */
.hud-back {
    position: absolute;
    top: 16px;
    left: 16px;
    width: 40px;
    height: 40px;
    display: none; /* Hidden on desktop, minimap replaces it conceptually */
    align-items: center;
    justify-content: center;
    background: var(--hud-bg);
    border: 1px solid var(--hud-border);
    border-radius: 8px;
    color: white;
    text-decoration: none;
    backdrop-filter: blur(8px);
}

.hud-back svg {
    width: 18px;
    height: 18px;
}

/* Notification */
.notification {
    position: absolute;
    top: 100px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    background: rgba(0, 255, 170, 0.15);
    border: 1px solid var(--hud-accent);
    border-radius: 8px;
    font-size: 0.85rem;
    backdrop-filter: blur(8px);
    animation: notifIn 0.3s ease, notifOut 0.3s ease 2.7s forwards;
}

@keyframes notifIn {
    from { opacity: 0; transform: translateX(-50%) translateY(-20px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

@keyframes notifOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

.notification-icon {
    color: var(--hud-accent);
    font-size: 1.2rem;
}

/* Orb collection display */
.orb-collection {
    position: absolute;
    bottom: 16px;
    left: 16px;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    max-width: 200px;
}

.orb-item {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.3);
    opacity: 0.3;
    transition: opacity 0.5s, border-color 0.5s, box-shadow 0.5s;
}

.orb-item.collected {
    opacity: 1;
    border-color: rgba(255, 255, 255, 0.8);
    box-shadow: 0 0 12px var(--orb-color, rgba(255, 255, 255, 0.5));
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ==============================
   GACHA CARD OVERLAY
   ============================== */

.gacha-overlay {
    position: fixed;
    inset: 0;
    z-index: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.15s ease;
    pointer-events: auto;
    cursor: pointer;
}

.gacha-overlay.gacha-fade-out {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.gacha-card {
    width: 260px;
    padding: 28px 24px;
    border-radius: 16px;
    text-align: center;
    animation: gachaReveal 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    overflow: hidden;
}

@keyframes gachaReveal {
    0% { transform: scale(0.3) rotateY(180deg); opacity: 0; }
    60% { transform: scale(1.05) rotateY(0deg); opacity: 1; }
    100% { transform: scale(1) rotateY(0deg); opacity: 1; }
}

.gacha-card.common {
    background: linear-gradient(135deg, rgba(100, 100, 100, 0.9), rgba(60, 60, 60, 0.95));
    border: 1px solid rgba(170, 170, 170, 0.3);
}

.gacha-card.rare {
    background: linear-gradient(135deg, rgba(20, 60, 120, 0.9), rgba(30, 80, 160, 0.95));
    border: 1px solid rgba(77, 166, 255, 0.5);
    box-shadow: 0 0 30px rgba(77, 166, 255, 0.2);
}

.gacha-card.epic {
    background: linear-gradient(135deg, rgba(80, 20, 120, 0.9), rgba(100, 30, 160, 0.95));
    border: 1px solid rgba(180, 77, 255, 0.5);
    box-shadow: 0 0 40px rgba(180, 77, 255, 0.3);
}

.gacha-card.legendary {
    background: linear-gradient(135deg, rgba(120, 90, 0, 0.9), rgba(160, 120, 0, 0.95));
    border: 2px solid rgba(255, 215, 0, 0.7);
    box-shadow: 0 0 60px rgba(255, 215, 0, 0.4), inset 0 0 30px rgba(255, 215, 0, 0.1);
    animation: gachaReveal 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), legendaryShine 2s ease-in-out infinite;
}

@keyframes legendaryShine {
    0%, 100% { box-shadow: 0 0 60px rgba(255, 215, 0, 0.4), inset 0 0 30px rgba(255, 215, 0, 0.1); }
    50% { box-shadow: 0 0 80px rgba(255, 215, 0, 0.6), inset 0 0 40px rgba(255, 215, 0, 0.2); }
}

.gacha-rarity {
    font-size: 1.4rem;
    letter-spacing: 4px;
    margin-bottom: 4px;
}

.gacha-rarity-name {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.gacha-new {
    display: inline-block;
    padding: 2px 12px;
    background: var(--hud-accent);
    color: #000;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 700;
    border-radius: 10px;
    margin-bottom: 12px;
    letter-spacing: 0.1em;
    animation: newBounce 0.5s ease infinite alternate;
}

@keyframes newBounce {
    from { transform: scale(1); }
    to { transform: scale(1.1); }
}

.gacha-artist {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 8px;
}

.gacha-skill {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.gacha-variant {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 16px;
}

.gacha-score {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--hud-accent);
    font-weight: 600;
}

.gacha-remaining {
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.4);
    margin-top: 8px;
}

/* ==============================
   COLLECTION BOOK
   ============================== */

.collection-book {
    position: fixed;
    inset: 0;
    z-index: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    animation: fadeIn 0.2s ease;
    cursor: default;
}

.cb-container {
    width: 700px;
    max-width: 95vw;
    max-height: 85vh;
    background: rgba(10, 5, 20, 0.98);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.cb-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.cb-header h2 {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    letter-spacing: 0.15em;
    flex: 1;
}

.cb-total {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--hud-accent);
    display: flex;
    gap: 8px;
}

.cb-percent {
    color: rgba(255, 255, 255, 0.5);
}

.cb-close {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.5);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0 4px;
}

.cb-close:hover {
    color: white;
}

.cb-body {
    padding: 16px 24px;
    overflow-y: auto;
    flex: 1;
}

.cb-artist {
    margin-bottom: 20px;
}

.cb-artist-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 12px;
    margin-bottom: 8px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 4px;
}

.cb-artist-name {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
}

.cb-artist-progress {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
}

.cb-skills {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
    padding-left: 12px;
}

.cb-skill {
    padding: 6px 10px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 4px;
}

.cb-skill-name {
    font-size: 0.75rem;
    font-weight: 500;
    margin-bottom: 4px;
    color: rgba(255, 255, 255, 0.7);
}

.cb-variants {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}

.cb-variant {
    display: inline-block;
    padding: 2px 8px;
    font-family: var(--font-mono);
    font-size: 0.6rem;
    border-radius: 3px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.cb-variant.owned {
    background: rgba(0, 255, 170, 0.15);
    border-color: rgba(0, 255, 170, 0.3);
    color: var(--hud-accent);
}

.cb-variant.locked {
    background: rgba(255, 255, 255, 0.03);
    color: rgba(255, 255, 255, 0.3);
}

/* ==============================
   COLLECTION BUTTON (HUD)
   ============================== */

.hud-collection-btn {
    position: absolute;
    top: 60px;
    left: 16px;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--hud-bg);
    border: 1px solid var(--hud-border);
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--hud-text);
    cursor: pointer;
    backdrop-filter: blur(8px);
    transition: border-color 0.2s;
}

.hud-collection-btn:hover {
    border-color: var(--hud-accent);
}

.hud-collection-btn svg {
    width: 14px;
    height: 14px;
    stroke: var(--hud-accent);
}

#collectionCount {
    color: var(--hud-accent);
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .controls-guide {
        grid-template-columns: 1fr;
    }

    .minimap {
        width: 100px;
        height: 100px;
    }

    .artist-panel {
        padding: 20px;
    }

    .hud-back {
        display: flex;
    }

    .hud-location {
        display: none;
    }
}