/* modern/style.css — Phase 1: Server-room dark theme */

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

:root {
    --bg:      #05050f;
    --panel:   #0d0d1f;
    --border:  #1a2a4a;
    --accent:  #00e5ff;
    --gold:    #ffd700;
    --danger:  #ff3333;
    --text:    #c0d8f0;
    --subtext: #607090;
    --font:    'Share Tech Mono', monospace;
}

html, body {
    height: 100%;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font);
    overflow-x: hidden;
}

body {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px 8px 24px;
    gap: 10px;
}

/* ── Header ─────────────────────────────────────────────────────────── */
.game-header {
    text-align: center;
}

.game-header h1 {
    font-size: clamp(1.2rem, 4vw, 2rem);
    color: var(--accent);
    text-shadow: 0 0 16px var(--accent);
    letter-spacing: 2px;
}

.subtitle {
    font-size: 0.78rem;
    color: var(--subtext);
    margin-top: 4px;
}

/* ── Canvas ──────────────────────────────────────────────────────────── */
.game-area {
    width: 100%;
    max-width: 800px;
}

#gameCanvas {
    display: block;
    width: 100%;
    aspect-ratio: 4 / 3;
    border: 2px solid var(--border);
    border-radius: 4px;
    box-shadow: 0 0 32px rgba(0, 229, 255, 0.12), 0 0 8px rgba(0, 0, 0, 0.8);
    background: #0a0a1a;
    cursor: default;
    /* keep pixel art sharp when scaled up on hi-dpi */
    image-rendering: pixelated;
    image-rendering: crisp-edges;
}

/* ── HUD row below canvas ────────────────────────────────────────────── */
.hud-row {
    width: 100%;
    max-width: 800px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 10px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 0.85rem;
}

.hud-row strong {
    color: var(--accent);
}

.hud-row span:last-child strong {
    color: var(--gold);
}

.controls-hint {
    font-size: 0.72rem;
    color: var(--subtext);
    text-align: center;
}

kbd {
    background: #1a2a3a;
    border: 1px solid #2a4a6a;
    border-radius: 3px;
    padding: 1px 4px;
    font-family: var(--font);
    font-size: 0.72rem;
    color: var(--text);
}

/* ── Button row ──────────────────────────────────────────────────────── */
.btn-row {
    display: flex;
    gap: 12px;
}

.game-btn {
    padding: 8px 20px;
    font-family: var(--font);
    font-size: 0.85rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--panel);
    color: var(--text);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, box-shadow 0.15s;
}

.game-btn:hover {
    background: #0a1a2a;
    border-color: var(--accent);
    box-shadow: 0 0 8px rgba(0, 229, 255, 0.3);
    color: var(--accent);
}

.game-btn.danger {
    border-color: #441111;
    color: var(--danger);
}

.game-btn.danger:hover {
    background: #1a0808;
    border-color: var(--danger);
    box-shadow: 0 0 8px rgba(255, 51, 51, 0.4);
}

/* ── Responsive tweaks ───────────────────────────────────────────────── */
@media (max-width: 500px) {
    .controls-hint {
        display: none;
    }
    .hud-row {
        font-size: 0.78rem;
    }
}