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

:root {
    --bg: #0a0e17;
    --surface: #141b2d;
    --border: #1e2a45;
    --text: #e2e8f0;
    --muted: #a0aec0;
    --accent: #22d3ee;
    --accent-glow: rgba(34, 211, 238, 0.3);
    --success: #4ade80;
    --success-glow: rgba(74, 222, 128, 0.3);
}

body {
    font-family: 'Space Grotesk', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
}

.wrap {
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.hero {
    text-align: center;
    margin-bottom: 2rem;
}

.eyebrow {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

h1 {
    font-family: 'Fraunces', serif;
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--text), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.subhead {
    color: var(--muted);
    font-size: 0.95rem;
    line-height: 1.5;
}

.board {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 1.5rem;
}

.panel-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--muted);
    margin-bottom: 1rem;
}

.slot-row, .tile-row {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
}

.slot {
    width: 3rem;
    height: 3.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Fraunces', serif;
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: 0.5rem;
    color: var(--accent);
}

.tile {
    width: 3rem;
    height: 3.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Fraunces', serif;
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--bg);
    border: 2px solid var(--border);
    border-radius: 0.5rem;
    color: var(--text);
    cursor: pointer;
    transition: all 0.15s ease;
}

.tile:hover {
    border-color: var(--accent);
    box-shadow: 0 0 20px var(--accent-glow);
    transform: translateY(-2px);
}

.tile:active {
    transform: translateY(0);
}

.tile.matched {
    border-color: var(--success);
    color: var(--success);
    box-shadow: 0 0 15px var(--success-glow);
}

.tile.victory {
    animation: pulse 0.5s ease;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.controls {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

button {
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.6rem 1.2rem;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.15s ease;
}

.primary {
    background: linear-gradient(135deg, var(--accent), #0ea5e9);
    border: none;
    color: var(--bg);
}

.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.ghost {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--muted);
}

.ghost:hover {
    border-color: var(--text);
    color: var(--text);
}

button:focus-visible, .tile:focus-visible {
    outline: 3px solid #fbbf24;
    outline-offset: 3px;
}

.status {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 2rem;
}

.meter {
    text-align: center;
}

.meter .label {
    display: block;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--muted);
    margin-bottom: 0.25rem;
}

.meter .value {
    font-family: 'Fraunces', serif;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent);
}

.instructions {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 1.5rem;
}

.instructions h2 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text);
}

.instructions ol {
    padding-left: 1.25rem;
    color: var(--muted);
    font-size: 0.9rem;
    line-height: 1.8;
}

.message {
    position: fixed;
    top: 2rem;
    left: 50%;
    transform: translateX(-50%);
    background: var(--success);
    color: var(--bg);
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    font-weight: 600;
    animation: slideIn 0.3s ease;
    z-index: 100;
}

.message.fade-out {
    animation: slideOut 0.5s ease forwards;
}

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

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

@media (max-width: 480px) {
    h1 { font-size: 2rem; }
    .slot, .tile { width: 2.5rem; height: 3rem; font-size: 1.25rem; }
    .controls { flex-wrap: wrap; }
}