* {
    box-sizing: border-box;
}

:root {
    --bg-top: #25070d;
    --bg-bottom: #6b1f28;
    --panel: rgba(31, 7, 12, 0.78);
    --panel-strong: rgba(45, 8, 16, 0.92);
    --line: rgba(255, 210, 196, 0.22);
    --text: #fff1e8;
    --muted: #f8b9a7;
    --accent: #9ff7d4;
    --accent-strong: #42d79a;
    --warning: #ffd166;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: "Space Grotesk", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top, rgba(255, 180, 160, 0.18), transparent 28%),
        radial-gradient(circle at 20% 20%, rgba(255, 112, 102, 0.2), transparent 20%),
        linear-gradient(180deg, var(--bg-top), var(--bg-bottom));
}

.page-shell {
    width: min(1180px, calc(100vw - 32px));
    margin: 0 auto;
    padding: 28px 0 36px;
}

.masthead {
    margin-bottom: 22px;
}

.eyebrow,
.overlay-kicker,
.label {
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.72rem;
    color: var(--muted);
}

h1,
h2,
strong,
button {
    font-family: "Aldrich", sans-serif;
}

h1 {
    margin: 6px 0 10px;
    font-size: clamp(2.5rem, 5vw, 4.4rem);
    line-height: 0.95;
}

.deck {
    margin: 0;
    max-width: 48rem;
    color: #ffd8ca;
    font-size: 1.02rem;
}

.game-shell {
    display: grid;
    gap: 18px;
}

.hud-bar,
.briefing-grid article,
.overlay-panel {
    backdrop-filter: blur(14px);
    background: var(--panel);
    border: 1px solid var(--line);
    box-shadow: 0 18px 50px rgba(10, 0, 2, 0.24);
}

.hud-bar {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    padding: 14px 18px;
    border-radius: 20px;
}

.hud-bar strong {
    display: block;
    margin-top: 5px;
    font-size: 1.05rem;
    color: var(--accent);
}

.canvas-frame {
    position: relative;
    overflow: hidden;
    border-radius: 28px;
    border: 1px solid rgba(255, 222, 212, 0.28);
    box-shadow: 0 22px 60px rgba(14, 0, 3, 0.4);
}

canvas {
    display: block;
    width: 100%;
    height: auto;
    background: linear-gradient(180deg, #3a0710, #6e1220);
}

.overlay {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    padding: 20px;
    background: linear-gradient(180deg, rgba(39, 8, 12, 0.46), rgba(10, 0, 0, 0.72));
}

.overlay.hidden {
    display: none;
}

.overlay-panel {
    width: min(540px, 100%);
    padding: 28px;
    border-radius: 24px;
    background: var(--panel-strong);
}

.overlay-panel h2 {
    margin: 8px 0 12px;
    font-size: clamp(1.8rem, 4vw, 2.7rem);
}

.overlay-panel p {
    margin: 0 0 18px;
    color: #ffdcd1;
}

button {
    border: 0;
    border-radius: 999px;
    padding: 14px 22px;
    color: #122a1b;
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    cursor: pointer;
    font-size: 0.98rem;
}

button:hover {
    filter: brightness(1.05);
}

.briefing-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.briefing-grid article {
    padding: 18px;
    border-radius: 22px;
}

.briefing-grid h2 {
    margin: 0 0 10px;
    font-size: 1rem;
    color: var(--warning);
}

.briefing-grid p {
    margin: 0;
    color: #ffd9cc;
    line-height: 1.55;
}

@media (max-width: 900px) {
    .hud-bar,
    .briefing-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .page-shell {
        width: min(100vw - 20px, 100%);
        padding-top: 18px;
    }

    .hud-bar,
    .briefing-grid {
        grid-template-columns: 1fr;
    }

    .overlay-panel {
        padding: 22px;
    }
}