@layer base, components, utilities;

@layer base {
    :root {
        /* Default Theme (Cyan) */
        --bg-color: oklch(10% 0.02 260);
        --accent-color: oklch(75% 0.25 190);
        --start-color: oklch(80% 0.3 150);
        --end-color: oklch(65% 0.35 320);
        --wall-color: oklch(25% 0.1 260);
        --text-color: oklch(98% 0.01 260);
        --danger-color: oklch(60% 0.25 30);
        --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    }

    /* Theme Overrides */
    body.theme-inferno {
        --accent-color: oklch(70% 0.3 30);
        --start-color: oklch(85% 0.2 60);
        --end-color: oklch(60% 0.3 330);
        --wall-color: oklch(25% 0.1 30);
    }
    body.theme-toxic {
        --accent-color: oklch(80% 0.3 140);
        --start-color: oklch(90% 0.2 180);
        --end-color: oklch(60% 0.3 100);
        --wall-color: oklch(25% 0.1 140);
    }
    body.theme-matrix {
        --accent-color: oklch(90% 0 0);
        --start-color: oklch(80% 0 0);
        --end-color: oklch(50% 0 0);
        --wall-color: oklch(30% 0 0);
    }

    * { box-sizing: border-box; margin: 0; padding: 0; }
    body {
        font-family: var(--font-main);
        background-color: var(--bg-color);
        color: var(--text-color);
        overflow: hidden;
        display: flex;
        justify-content: center;
        align-items: center;
        height: 100vh;
        width: 100vw;
        transition: background-color 0.5s;
    }
}

@layer components {
    #app {
        width: 100%;
        max-width: 1100px;
        height: 95vh;
        display: grid;
        grid-template-rows: auto 1fr auto;
        gap: 1rem;
        padding: 1.5rem;
    }

    .game-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 1rem 1.5rem;
        background: oklch(100% 0 0 / 0.03);
        border-radius: 1rem;
        border: 1px solid oklch(100% 0 0 / 0.05);
    }
    
    .header-left { display: flex; align-items: center; gap: 1.5rem; }
    .icon-btn {
        background: none;
        border: none;
        font-size: 1.5rem;
        cursor: pointer;
        opacity: 0.5;
        transition: opacity 0.2s, transform 0.2s;
    }
    .icon-btn:hover { opacity: 1; transform: rotate(45deg); }

    .logo-main {
        font-size: 1.8rem;
        font-weight: 900;
        letter-spacing: 0.2em;
        background: linear-gradient(45deg, var(--accent-color), var(--end-color));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
    }

    .stats { display: flex; gap: 2rem; }
    .stat-item { font-size: 0.8rem; font-weight: 800; color: oklch(100% 0 0 / 0.4); text-transform: uppercase; }
    .stat-item span { color: var(--text-color); margin-left: 0.5rem; font-family: monospace; }

    #game-container {
        position: relative;
        background: oklch(100% 0 0 / 0.01);
        border: 2px solid oklch(100% 0 0 / 0.08);
        border-radius: 2rem;
        overflow: hidden;
        cursor: none;
        box-shadow: 0 0 150px oklch(0% 0 0 / 0.9) inset;
    }

    #maze-renderer { width: 100%; height: 100%; position: relative; }

    /* CURSOR SHAPES */
    .fake-cursor {
        position: absolute;
        pointer-events: none;
        z-index: 500;
        transform: translate(-50%, -50%);
    }
    .fake-cursor.shape-dot { width: 12px; height: 12px; background: white; border-radius: 50%; box-shadow: 0 0 20px var(--accent-color); }
    .fake-cursor.shape-square { width: 14px; height: 14px; background: white; border: 2px solid var(--accent-color); }
    .fake-cursor.shape-cross { width: 20px; height: 20px; border-left: 2px solid var(--accent-color); border-top: 2px solid var(--accent-color); transform: translate(-50%, -50%) rotate(45deg); }
    .fake-cursor.hidden { display: none; }

    /* Maze Walls */
    .maze-wall {
        position: absolute;
        background-color: var(--wall-color);
        box-shadow: inset 0 0 20px oklch(0% 0 0 / 0.4);
        border: 1px solid oklch(100% 0 0 / 0.05);
        transition: background-color 0.3s;
    }
    .maze-wall.hit { background-color: var(--danger-color); box-shadow: 0 0 50px var(--danger-color); z-index: 10; }

    .zone { position: absolute; display: flex; justify-content: center; align-items: center; font-weight: 900; font-size: 0.7rem; border-radius: 8px; text-transform: uppercase; border: 2px solid transparent; }
    .start-zone { background: oklch(80% 0.3 150 / 0.1); color: var(--start-color); border-color: var(--start-color); }
    .end-zone { background: oklch(65% 0.35 320 / 0.1); color: var(--end-color); border-color: var(--end-color); animation: pulse 1.5s infinite alternate; }

    @keyframes pulse { 0% { box-shadow: 0 0 10px var(--end-color); transform: scale(1); } 100% { box-shadow: 0 0 40px var(--end-color); transform: scale(1.05); } }

    /* OVERLAY SYSTEM */
    .overlay { position: absolute; inset: 0; background: radial-gradient(circle at center, oklch(10% 0.02 260 / 0.95), oklch(5% 0.02 260 / 1)); backdrop-filter: blur(25px); display: flex; justify-content: center; align-items: center; z-index: 600; cursor: auto; }
    .overlay.hidden { display: none; }

    .overlay-content { text-align: center; padding: 4rem; background: oklch(100% 0 0 / 0.02); border: 1px solid oklch(100% 0 0 / 0.1); border-radius: 3rem; width: 90%; max-width: 800px; box-shadow: 0 100px 200px oklch(0% 0 0 / 0.9); position: relative; }

    /* UI ELEMENTS */
    .menu-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; text-align: left; margin-top: 2rem; }
    .menu-section h3 { font-size: 0.9rem; letter-spacing: 0.2em; color: var(--accent-color); margin-bottom: 1rem; text-transform: uppercase; }
    .option-group { display: flex; flex-wrap: wrap; gap: 0.5rem; }
    .choice-btn { padding: 0.6rem 1.2rem; background: oklch(100% 0 0 / 0.05); border: 1px solid oklch(100% 0 0 / 0.1); border-radius: 0.5rem; color: white; cursor: pointer; font-size: 0.8rem; transition: all 0.2s; }
    .choice-btn.active { background: var(--accent-color); color: var(--bg-color); font-weight: 800; border-color: white; }
    
    .volume-slider { width: 100%; height: 6px; background: oklch(100% 0 0 / 0.1); border-radius: 10px; appearance: none; margin-top: 1rem; }
    .volume-slider::-webkit-slider-thumb { appearance: none; width: 18px; height: 18px; background: var(--accent-color); border-radius: 50%; cursor: pointer; box-shadow: 0 0 10px var(--accent-color); }

    /* Leaderboard */
    .leaderboard-list { margin-top: 1.5rem; text-align: left; }
    .leaderboard-item { display: grid; grid-template-columns: 40px 1fr auto; padding: 0.8rem 1rem; border-bottom: 1px solid oklch(100% 0 0 / 0.05); font-family: monospace; }
    .leaderboard-item:first-child { color: var(--accent-color); font-weight: 800; border-top: 1px solid var(--accent-color); background: oklch(100% 0 0 / 0.02); }

    .name-input { background: oklch(100% 0 0 / 0.05); border: 1px solid var(--accent-color); padding: 1rem; border-radius: 0.5rem; color: white; width: 100%; font-size: 1.2rem; text-align: center; margin: 2rem 0; outline: none; }

    .controls-hint { display: flex; flex-direction: column; align-items: center; gap: 1rem; margin-top: 2.5rem; }
    .key { padding: 0.7rem 2rem; background: var(--text-color); color: var(--bg-color); font-weight: 900; border-radius: 0.5rem; box-shadow: 0 5px 0 oklch(100% 0 0 / 0.4); font-size: 0.9rem; }

    .tutorial-text { 
        position: absolute; 
        top: 3rem; 
        left: 50%; 
        transform: translateX(-50%); 
        background: oklch(100% 0 0 / 0.08); 
        padding: 1.5rem 3rem; 
        border-radius: 1rem; 
        font-weight: 700; 
        color: var(--accent-color); 
        backdrop-filter: blur(10px); 
        border: 1px solid oklch(100% 0 0 / 0.1); 
        z-index: 150; 
        animation: glow-text 2s infinite alternate; 
        pointer-events: none;
    }
    @keyframes glow-text { from { box-shadow: 0 0 5px var(--accent-color); } to { box-shadow: 0 0 20px var(--accent-color); } }

    .game-warning {
        position: absolute;
        inset: 0;
        display: flex;
        justify-content: center;
        align-items: center;
        background: oklch(0% 0 0 / 0.4);
        color: var(--danger-color);
        font-weight: 900;
        font-size: 1.5rem;
        letter-spacing: 0.1em;
        z-index: 140;
        pointer-events: none;
        backdrop-filter: grayscale(1) blur(2px);
    }
    .game-warning.hidden { display: none; }
}