/* ===== TESSELLATE ===== */
/* Inspired by The Talos Principle */

:root {
    --bg-dark: #0a0a0f;
    --bg-panel: #12121a;
    --bg-card: #1a1a28;
    --gold: #c9a84c;
    --gold-light: #e8d48b;
    --gold-dim: #7a6430;
    --gold-glow: rgba(201, 168, 76, 0.3);
    --text: #d4cfc0;
    --text-dim: #6a6560;
    --sigil-red: #c0392b;
    --sigil-red-light: #e74c3c;
    --sigil-blue: #2471a3;
    --sigil-blue-light: #3498db;
    --sigil-green: #1e8449;
    --sigil-green-light: #27ae60;
    --sigil-yellow: #b7950b;
    --sigil-yellow-light: #d4ac0d;
    --sigil-purple: #6c3483;
    --sigil-purple-light: #8e44ad;
    --sigil-cyan: #148f9e;
    --sigil-cyan-light: #1abc9c;
    --sigil-orange: #d35400;
    --sigil-orange-light: #e67e22;
    --sigil-pink: #c2185b;
    --sigil-pink-light: #e91e63;
    --sigil-lime: #6a9a1f;
    --sigil-lime-light: #8bc34a;
    --sigil-teal: #00796b;
    --sigil-teal-light: #009688;
    --sigil-indigo: #283593;
    --sigil-indigo-light: #3f51b5;
    --sigil-maroon: #6d1b1b;
    --sigil-maroon-light: #8b2020;
    --cell-size: 52px;
    --gap: 2px;
}

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

body {
    background: var(--bg-dark);
    color: var(--text);
    font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    min-height: 100vh;
    overflow: hidden;
    user-select: none;
}

/* ===== SCREENS ===== */
.screen {
    display: none;
    position: absolute;
    inset: 0;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.5s ease;
}

.screen.active {
    display: flex;
}

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

/* ===== TITLE SCREEN ===== */
.title-content {
    text-align: center;
}

.title-icon {
    font-size: 80px;
    color: var(--gold);
    text-shadow: 0 0 40px var(--gold-glow), 0 0 80px var(--gold-glow);
    margin-bottom: 10px;
    animation: iconReveal 1s ease-out both;
}

@keyframes iconReveal {
    0% { opacity: 0; transform: scale(0.3) rotate(-180deg); filter: blur(10px); }
    60% { opacity: 1; transform: scale(1.1) rotate(10deg); filter: blur(0); }
    100% { opacity: 1; transform: scale(1) rotate(0deg); filter: blur(0); }
}

.title-icon::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 140px;
    height: 140px;
    margin: -70px 0 0 -70px;
    border: 1px solid rgba(201, 168, 76, 0.3);
    border-radius: 50%;
    animation: ringRotate 8s linear infinite 1s, ringPulse 3s ease-in-out infinite 1s;
    pointer-events: none;
    box-shadow:
        0 0 15px rgba(201, 168, 76, 0.15),
        inset 0 0 15px rgba(201, 168, 76, 0.1);
}

.title-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 180px;
    height: 180px;
    margin: -90px 0 0 -90px;
    border: 1px dashed rgba(201, 168, 76, 0.15);
    border-radius: 50%;
    animation: ringRotate 12s linear infinite reverse 1s;
    pointer-events: none;
}

@keyframes ringRotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes ringPulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.title-content h1 {
    font-family: 'Cinzel', serif;
    font-size: 72px;
    font-weight: 900;
    color: var(--gold);
    letter-spacing: 20px;
    text-shadow: 0 0 30px var(--gold-glow), 0 0 60px rgba(201, 168, 76, 0.15);
    animation: titleReveal 0.8s ease-out 0.4s both;
}

@keyframes titleReveal {
    0% { opacity: 0; transform: translateY(30px); letter-spacing: 40px; }
    100% { opacity: 1; transform: translateY(0); letter-spacing: 20px; }
}

.subtitle {
    font-size: 18px;
    letter-spacing: 8px;
    color: var(--gold-dim);
    margin-top: 5px;
    animation: subtitleReveal 0.6s ease-out 0.8s both;
}

@keyframes subtitleReveal {
    0% { opacity: 0; letter-spacing: 20px; }
    100% { opacity: 1; letter-spacing: 8px; }
}

.title-divider {
    width: 200px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    margin: 30px auto;
    animation: dividerReveal 0.8s ease-out 1s both;
}

@keyframes dividerReveal {
    0% { opacity: 0; width: 0; }
    100% { opacity: 1; width: 200px; }
}

.title-quote {
    font-style: italic;
    color: var(--text-dim);
    font-size: 16px;
    margin-bottom: 40px;
    animation: quoteReveal 0.6s ease-out 1.3s both;
}

@keyframes quoteReveal {
    0% { opacity: 0; transform: translateY(10px); }
    100% { opacity: 1; transform: translateY(0); }
}

#title-screen .btn-ancient {
    animation: btnReveal 0.6s ease-out 1.5s both;
}

@keyframes btnReveal {
    0% { opacity: 0; transform: translateY(20px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* ===== BUTTONS ===== */
.btn-ancient {
    font-family: 'Cinzel', serif;
    font-size: 18px;
    font-weight: 700;
    color: var(--gold);
    background: transparent;
    border: 1px solid var(--gold-dim);
    padding: 14px 50px;
    cursor: pointer;
    letter-spacing: 4px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-ancient::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gold);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.btn-ancient:hover {
    border-color: var(--gold);
    text-shadow: 0 0 10px var(--gold-glow);
    box-shadow: 0 0 20px var(--gold-glow), inset 0 0 20px rgba(201, 168, 76, 0.05);
}

.btn-ancient:hover::before {
    opacity: 0.05;
}

.btn-ancient:active {
    transform: scale(0.97);
}

.btn-small {
    font-size: 13px;
    padding: 8px 20px;
    letter-spacing: 2px;
}

.btn-secondary {
    border-color: var(--text-dim);
    color: var(--text-dim);
}

.btn-secondary:hover {
    border-color: var(--text);
    color: var(--text);
    box-shadow: none;
}

/* ===== LEVEL SELECT ===== */
.level-header {
    display: flex;
    align-items: center;
    gap: 20px;
    width: 100%;
    padding: 0 30px 10px 30px;
    border-bottom: 1px solid rgba(201, 168, 76, 0.15);
    margin-bottom: 10px;
}

.level-header h2 {
    font-family: 'Cinzel', serif;
    font-size: 32px;
    color: var(--gold);
    letter-spacing: 8px;
}

#level-screen h2 {
    font-family: 'Cinzel', serif;
    font-size: 32px;
    color: var(--gold);
    letter-spacing: 8px;
}

#level-screen {
    justify-content: flex-start;
    padding-top: 30px;
}

.level-divider {
    width: 150px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold-dim), transparent);
    margin: 20px auto 30px;
}

.level-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.random-section {
    margin-top: 20px;
    text-align: center;
}

.random-section h3 {
    font-family: 'Cinzel', serif;
    color: var(--gold);
    letter-spacing: 4px;
    font-size: 16px;
    margin-bottom: 12px;
}

.difficulty-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.btn-diff {
    font-size: 13px !important;
    padding: 8px 20px !important;
    letter-spacing: 3px !important;
    min-width: 90px;
}

.btn-easy {
    border-color: rgba(46, 204, 113, 0.5) !important;
    color: #2ecc71 !important;
}
.btn-easy:hover {
    background: rgba(46, 204, 113, 0.15) !important;
}

.btn-medium {
    border-color: rgba(241, 196, 15, 0.5) !important;
    color: #f1c40f !important;
}
.btn-medium:hover {
    background: rgba(241, 196, 15, 0.15) !important;
}

.btn-hard {
    border-color: rgba(192, 57, 43, 0.5) !important;
    color: #c0392b !important;
}
.btn-hard:hover {
    background: rgba(192, 57, 43, 0.15) !important;
}

.level-grid {
    margin-bottom: 30px;
    max-width: 500px;
}

.level-card {
    width: 120px;
    height: 110px;
    background: var(--bg-card);
    border: 1px solid var(--gold-dim);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    padding: 8px 6px;
}

.level-card:hover {
    border-color: var(--gold);
    box-shadow: 0 0 15px var(--gold-glow);
    transform: translateY(-2px);
}

.level-card.solved {
    border-color: var(--sigil-green);
}

.level-card.solved::after {
    content: '⬡';
    position: absolute;
    top: 6px;
    right: 8px;
    font-size: 12px;
    color: var(--sigil-green-light);
}

.level-card.locked {
    opacity: 0.3;
    cursor: not-allowed;
    border-color: var(--text-dim);
}

.level-card.locked:hover {
    box-shadow: none;
    transform: none;
}

.level-num {
    font-family: 'Cinzel', serif;
    font-size: 26px;
    color: var(--gold-light);
    text-shadow: 0 0 8px var(--gold-glow);
}

.level-card.solved .level-num {
    color: var(--sigil-green-light);
}

.level-card.locked .level-num {
    color: var(--text-dim);
}

.level-name {
    font-size: 11px;
    letter-spacing: 1px;
    color: var(--text);
    margin-top: 6px;
    text-align: center;
    word-break: break-word;
    line-height: 1.2;
    max-width: 100%;
}

/* ===== GAME SCREEN ===== */
#game-screen {
    justify-content: flex-start;
    padding: 0;
}

.game-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 15px 25px;
    background: var(--bg-panel);
    border-bottom: 1px solid rgba(201, 168, 76, 0.15);
    z-index: 10;
}

.game-header h2 {
    font-family: 'Cinzel', serif;
    font-size: 22px;
    color: var(--gold);
    letter-spacing: 6px;
}

.header-left {
    display: flex;
    gap: 10px;
}

.header-controls {
    display: flex;
    gap: 10px;
}

.game-area {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 40px;
    flex: 1;
    padding: 20px 30px;
    width: 100%;
    overflow: hidden;
    min-height: 0;
}

/* ===== BOARD ===== */
.board-container {
    position: relative;
    padding: 20px;
    background: var(--bg-panel);
    border: 1px solid rgba(201, 168, 76, 0.2);
    box-shadow: 0 0 40px rgba(0,0,0,0.5), inset 0 0 30px rgba(0,0,0,0.3);
}

.check-banner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 16px 32px;
    border-radius: 6px;
    font-family: 'Cinzel', serif;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 3px;
    z-index: 20;
    pointer-events: none;
    animation: checkFadeIn 0.3s ease;
    white-space: nowrap;
}

.check-ok {
    background: rgba(10, 10, 15, 0.85);
    border: 2px solid rgba(46, 204, 113, 0.8);
    color: #2ecc71;
    text-shadow: 0 0 12px rgba(46, 204, 113, 0.5);
}

.check-fail {
    background: rgba(10, 10, 15, 0.85);
    border: 2px solid rgba(192, 57, 43, 0.8);
    color: #e74c3c;
    text-shadow: 0 0 12px rgba(192, 57, 43, 0.5);
}

.check-loading {
    background: rgba(10, 10, 15, 0.85);
    border: 2px solid rgba(201, 168, 76, 0.6);
    color: var(--gold);
    text-shadow: 0 0 12px var(--gold-glow);
    animation: checkFadeIn 0.3s ease, loadingPulse 1s ease-in-out infinite;
}

@keyframes loadingPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

@keyframes checkFadeIn {
    from { opacity: 0; transform: translate(-50%, -50%) scale(0.9); }
    to { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}

.board {
    display: grid;
    gap: var(--gap);
    position: relative;
}

.cell {
    width: var(--cell-size);
    height: var(--cell-size);
    background: rgba(201, 168, 76, 0.04);
    border: 1px solid rgba(201, 168, 76, 0.1);
    transition: background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.cell.filled {
    border-color: transparent;
    cursor: grab;
}

.cell.filled:hover {
    filter: brightness(1.3);
    box-shadow: 0 0 8px rgba(201, 168, 76, 0.25);
    z-index: 1;
    position: relative;
}

.cell.filled.border-top { border-top: 3px solid rgba(201, 168, 76, 0.45); }
.cell.filled.border-bottom { border-bottom: 3px solid rgba(201, 168, 76, 0.45); }
.cell.filled.border-left { border-left: 3px solid rgba(201, 168, 76, 0.45); }
.cell.filled.border-right { border-right: 3px solid rgba(201, 168, 76, 0.45); }

.cell.highlight {
    background: rgba(201, 168, 76, 0.12);
    border-color: rgba(201, 168, 76, 0.3);
}

.cell.invalid {
    background: rgba(192, 57, 43, 0.15);
    border-color: rgba(192, 57, 43, 0.4);
}

/* ===== PIECE TRAY ===== */
.piece-tray-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 220px;
    max-height: calc(100vh - 120px);
    overflow: hidden;
}

.piece-tray-container h3 {
    font-family: 'Cinzel', serif;
    font-size: 16px;
    color: var(--gold-dim);
    letter-spacing: 4px;
    margin-bottom: 6px;
}

.tray-hint {
    font-size: 11px;
    color: var(--text-dim);
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.piece-tray {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
    overflow-y: auto;
    overflow-x: hidden;
    flex: 1;
    min-height: 0;
    padding: 4px 8px 12px 4px;
    max-height: calc(100vh - 200px);
    scrollbar-width: thin;
    scrollbar-color: var(--gold-dim) var(--bg-dark);
}

.piece-tray::-webkit-scrollbar {
    width: 6px;
}

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

.piece-tray::-webkit-scrollbar-thumb {
    background: var(--gold-dim);
    border-radius: 3px;
}

.piece-tray::-webkit-scrollbar-thumb:hover {
    background: var(--gold);
}

/* ===== PIECE ===== */
.piece-wrapper {
    cursor: grab;
    transition: transform 0.2s ease, opacity 0.2s ease;
    position: relative;
}

.piece-wrapper:hover {
    transform: scale(1.05);
}

.piece-wrapper.placed {
    display: none;
}

.piece-wrapper.dragging {
    opacity: 0.5;
    cursor: grabbing;
}

.piece-grid {
    display: grid;
    gap: 1px;
}

.piece-cell {
    width: 32px;
    height: 32px;
    border-radius: 2px;
    transition: all 0.15s ease;
}

.piece-cell.empty {
    background: transparent;
}

.piece-cell.border-top { border-top: 2px solid rgba(201, 168, 76, 0.5); }
.piece-cell.border-bottom { border-bottom: 2px solid rgba(201, 168, 76, 0.5); }
.piece-cell.border-left { border-left: 2px solid rgba(201, 168, 76, 0.5); }
.piece-cell.border-right { border-right: 2px solid rgba(201, 168, 76, 0.5); }

/* Sigil color classes */
.piece-cell.sigil-red { background: var(--sigil-red); box-shadow: inset 0 0 8px rgba(0,0,0,0.3), 0 0 6px rgba(192,57,43,0.3); }
.piece-cell.sigil-blue { background: var(--sigil-blue); box-shadow: inset 0 0 8px rgba(0,0,0,0.3), 0 0 6px rgba(36,113,163,0.3); }
.piece-cell.sigil-green { background: var(--sigil-green); box-shadow: inset 0 0 8px rgba(0,0,0,0.3), 0 0 6px rgba(30,132,73,0.3); }
.piece-cell.sigil-yellow { background: var(--sigil-yellow); box-shadow: inset 0 0 8px rgba(0,0,0,0.3), 0 0 6px rgba(183,149,11,0.3); }
.piece-cell.sigil-purple { background: var(--sigil-purple); box-shadow: inset 0 0 8px rgba(0,0,0,0.3), 0 0 6px rgba(108,52,131,0.3); }
.piece-cell.sigil-cyan { background: var(--sigil-cyan); box-shadow: inset 0 0 8px rgba(0,0,0,0.3), 0 0 6px rgba(20,143,158,0.3); }
.piece-cell.sigil-orange { background: var(--sigil-orange); box-shadow: inset 0 0 8px rgba(0,0,0,0.3), 0 0 6px rgba(211,84,0,0.3); }
.piece-cell.sigil-pink { background: var(--sigil-pink); box-shadow: inset 0 0 8px rgba(0,0,0,0.3), 0 0 6px rgba(194,24,91,0.3); }
.piece-cell.sigil-lime { background: var(--sigil-lime); box-shadow: inset 0 0 8px rgba(0,0,0,0.3), 0 0 6px rgba(106,154,31,0.3); }
.piece-cell.sigil-teal { background: var(--sigil-teal); box-shadow: inset 0 0 8px rgba(0,0,0,0.3), 0 0 6px rgba(0,121,107,0.3); }
.piece-cell.sigil-indigo { background: var(--sigil-indigo); box-shadow: inset 0 0 8px rgba(0,0,0,0.3), 0 0 6px rgba(40,53,147,0.3); }
.piece-cell.sigil-maroon { background: var(--sigil-maroon); box-shadow: inset 0 0 8px rgba(0,0,0,0.3), 0 0 6px rgba(109,27,27,0.3); }

/* Board filled cells */
.cell.sigil-red { background: var(--sigil-red); box-shadow: inset 0 0 10px rgba(0,0,0,0.3), 0 0 8px rgba(192,57,43,0.2); }
.cell.sigil-blue { background: var(--sigil-blue); box-shadow: inset 0 0 10px rgba(0,0,0,0.3), 0 0 8px rgba(36,113,163,0.2); }
.cell.sigil-green { background: var(--sigil-green); box-shadow: inset 0 0 10px rgba(0,0,0,0.3), 0 0 8px rgba(30,132,73,0.2); }
.cell.sigil-yellow { background: var(--sigil-yellow); box-shadow: inset 0 0 10px rgba(0,0,0,0.3), 0 0 8px rgba(183,149,11,0.2); }
.cell.sigil-purple { background: var(--sigil-purple); box-shadow: inset 0 0 10px rgba(0,0,0,0.3), 0 0 8px rgba(108,52,131,0.2); }
.cell.sigil-cyan { background: var(--sigil-cyan); box-shadow: inset 0 0 10px rgba(0,0,0,0.3), 0 0 8px rgba(20,143,158,0.2); }
.cell.sigil-orange { background: var(--sigil-orange); box-shadow: inset 0 0 10px rgba(0,0,0,0.3), 0 0 8px rgba(211,84,0,0.2); }
.cell.sigil-pink { background: var(--sigil-pink); box-shadow: inset 0 0 10px rgba(0,0,0,0.3), 0 0 8px rgba(194,24,91,0.2); }
.cell.sigil-lime { background: var(--sigil-lime); box-shadow: inset 0 0 10px rgba(0,0,0,0.3), 0 0 8px rgba(106,154,31,0.2); }
.cell.sigil-teal { background: var(--sigil-teal); box-shadow: inset 0 0 10px rgba(0,0,0,0.3), 0 0 8px rgba(0,121,107,0.2); }
.cell.sigil-indigo { background: var(--sigil-indigo); box-shadow: inset 0 0 10px rgba(0,0,0,0.3), 0 0 8px rgba(40,53,147,0.2); }
.cell.sigil-maroon { background: var(--sigil-maroon); box-shadow: inset 0 0 10px rgba(0,0,0,0.3), 0 0 8px rgba(109,27,27,0.2); }

/* Ghost piece on board */
.cell.ghost { opacity: 0.4; }

/* ===== DRAG GHOST ===== */
.drag-ghost {
    position: fixed;
    pointer-events: none;
    z-index: 1000;
    opacity: 0.85;
    transform: translate(-50%, -50%);
}

.drag-ghost .piece-grid {
    gap: var(--gap);
}

.drag-ghost .piece-cell {
    width: var(--cell-size);
    height: var(--cell-size);
}

/* ===== ROTATION INDICATOR ===== */
.piece-wrapper .rotate-hint {
    position: absolute;
    top: -8px;
    right: -8px;
    width: 18px;
    height: 18px;
    background: var(--bg-card);
    border: 1px solid var(--gold-dim);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    color: var(--gold-dim);
    opacity: 0;
    transition: opacity 0.2s;
}

.piece-wrapper:hover .rotate-hint {
    opacity: 1;
}

/* ===== WIN SCREEN ===== */
.win-content {
    text-align: center;
    animation: winAppear 0.8s ease;
}

@keyframes winAppear {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

.win-icon {
    font-size: 60px;
    color: var(--gold);
    text-shadow: 0 0 40px var(--gold-glow), 0 0 80px var(--gold-glow);
    animation: winPulse 2s ease-in-out infinite;
}

@keyframes winPulse {
    0%, 100% { text-shadow: 0 0 40px var(--gold-glow), 0 0 80px var(--gold-glow); }
    50% { text-shadow: 0 0 60px var(--gold-glow), 0 0 120px var(--gold-glow), 0 0 160px rgba(201,168,76,0.1); }
}

.win-content h2 {
    font-family: 'Cinzel', serif;
    font-size: 36px;
    color: var(--gold);
    letter-spacing: 10px;
    margin: 10px 0;
}

.win-divider {
    width: 180px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold), transparent);
    margin: 20px auto;
}

.win-quote {
    font-style: italic;
    color: var(--text-dim);
    font-size: 15px;
    margin: 0 auto 30px;
    max-width: 400px;
    text-align: center;
}

.win-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* ===== BACKGROUND PARTICLES ===== */
#app::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(1px 1px at 20% 30%, rgba(201,168,76,0.15), transparent),
        radial-gradient(1px 1px at 40% 70%, rgba(201,168,76,0.1), transparent),
        radial-gradient(1px 1px at 60% 20%, rgba(201,168,76,0.12), transparent),
        radial-gradient(1px 1px at 80% 50%, rgba(201,168,76,0.08), transparent),
        radial-gradient(1px 1px at 10% 80%, rgba(201,168,76,0.1), transparent),
        radial-gradient(1px 1px at 90% 10%, rgba(201,168,76,0.12), transparent);
    pointer-events: none;
    z-index: 0;
}

#app > .screen {
    z-index: 1;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
    :root {
        --cell-size: 42px;
    }

    .game-area {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }

    .piece-tray-container {
        min-width: unset;
    }

    .piece-tray {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }

    .title-content h1 {
        font-size: 48px;
        letter-spacing: 12px;
    }
}

@media (max-width: 600px) {
    :root {
        --cell-size: 36px;
    }

    .piece-cell {
        width: 26px;
        height: 26px;
    }

    .level-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .game-header h2 {
        font-size: 16px;
        letter-spacing: 3px;
    }
}