:root {
    --bg: #0e0e10;
    --bg-elev: #1a1a1d;
    --fg: #f5f5f4;
    --muted: #9a9a98;
    --border: rgba(255,255,255,0.08);
    --accent: #f8b803;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }
body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--fg);
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    min-height: 100dvh;
    overscroll-behavior-y: none;
}
a { color: var(--fg); }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
input, button { -webkit-tap-highlight-color: transparent; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.85rem 1.5rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: transform .12s ease, background .12s ease, border-color .12s ease;
}
.btn-primary { background: var(--fg); color: var(--bg); }
.btn-primary:hover { transform: translateY(-1px); }
.btn-ghost { color: var(--fg); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: rgba(255,255,255,0.3); }
.btn-accent { background: var(--accent); color: #1a1306; }

.penguin-mark {
    display: inline-block;
    border-radius: 50%;
    background: #fff;
    vertical-align: middle;
    object-fit: cover;
    flex-shrink: 0;
}
.penguin-mark.unrated { width: 14px;  height: 14px;  opacity: 0.25; filter: grayscale(1); }
.penguin-mark.low     { width: 16px;  height: 16px;  opacity: 0.55; }
.penguin-mark.mid     { width: 20px;  height: 20px;  }
.penguin-mark.high    { width: 24px;  height: 24px;  box-shadow: 0 0 0 2px var(--accent), 0 0 12px -2px var(--accent); }
.penguin-mark.xl-unrated { width: 36px; height: 36px; opacity: 0.25; filter: grayscale(1); }
.penguin-mark.xl-low     { width: 40px; height: 40px; opacity: 0.6; }
.penguin-mark.xl-mid     { width: 48px; height: 48px; }
.penguin-mark.xl-high    { width: 56px; height: 56px; box-shadow: 0 0 0 3px var(--accent), 0 0 20px -2px var(--accent); }