:root {
    --bg-color: #f4f0ea;
    --text-color: #111111;
    --border-color: #111111;
    --accent: #ef4444; /* Red */
    
    --color-red: #ff4757;
    --color-blue: #1e90ff;
    --color-green: #2ed573;
    --color-yellow: #ffa502;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    overflow: hidden;
}

.container {
    text-align: center;
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.back-link {
    position: absolute;
    top: 2rem; left: 2rem;
    text-decoration: none;
    color: var(--text-color);
    font-weight: 700;
    font-family: 'Space Mono', monospace;
    border: 2px solid var(--border-color);
    padding: 0.5rem 1rem;
    background: #fff;
    box-shadow: 4px 4px 0 var(--border-color);
    transition: transform 0.2s, box-shadow 0.2s;
}
.back-link:hover {
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0 var(--border-color);
}

.screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    width: 100%;
}
.hidden { display: none !important; }

.title { font-size: clamp(3rem, 8vw, 5rem); font-weight: 900; letter-spacing: -2px; }
.subtitle {
    font-size: 1.5rem;
    font-family: 'Space Mono', monospace;
    background: #fff;
    padding: 1rem 2rem;
    border: 3px solid var(--border-color);
    box-shadow: 6px 6px 0 var(--accent);
    transform: rotate(-1deg);
}

.score-display {
    font-family: 'Space Mono', monospace;
    font-size: 2rem;
    font-weight: 800;
}

.main-btn {
    font-family: 'Outfit', sans-serif;
    font-size: 2rem;
    font-weight: 800;
    padding: 1rem 3rem;
    background-color: var(--accent);
    color: #fff;
    border: 4px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 8px 8px 0 var(--border-color);
    cursor: pointer;
    transition: all 0.1s;
}
.main-btn:active {
    transform: translate(4px, 4px);
    box-shadow: 4px 4px 0 var(--border-color);
}

.shapes-container {
    display: flex;
    gap: 2rem;
    justify-content: center;
    align-items: center;
    min-height: 120px;
}

.shape-item {
    width: 80px;
    height: 80px;
    border: 4px solid var(--border-color);
    background-color: #fff; /* default */
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* Shapes */
.shape-square { border-radius: 0; }
.shape-circle { border-radius: 50%; }
.shape-triangle {
    width: 0;
    height: 0;
    background-color: transparent !important;
    border-left: 45px solid transparent;
    border-right: 45px solid transparent;
    border-bottom: 80px solid #fff;
    border-top: none;
}

/* Controls */
.controls-container {
    display: flex;
    gap: 2rem;
    margin-top: 1rem;
}

.slot-controls {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    width: 80px;
}

.slot-controls button {
    font-family: 'Space Mono', monospace;
    font-weight: bold;
    font-size: 0.9rem;
    padding: 0.5rem 0;
    background: #fff;
    border: 2px solid var(--border-color);
    cursor: pointer;
    box-shadow: 2px 2px 0 var(--border-color);
}
.slot-controls button:active {
    transform: translate(1px, 1px);
    box-shadow: 1px 1px 0 var(--border-color);
}

.mt-4 { margin-top: 2rem; }