/* Corn Toss Game — Modern Design System v2 */
:root {
  --bg: #fdfbf7;
  --bg-soft: #f4efe6;
  --card: #ffffff;
  --card-2: #fffdf9;
  --ink: #1c1512;
  --ink-2: #4a3d33;
  --muted: #8a7a68;
  --accent: #e8873a;
  --accent-2: #f4a94f;
  --accent-deep: #c96a1e;
  --green: #1f9d5b;
  --red: #e04545;
  --blue: #3b82f6;
  --line: #ece4d6;
  --shadow: 0 1px 3px rgba(60,40,20,.06), 0 8px 24px rgba(60,40,20,.06);
  --shadow-lg: 0 4px 12px rgba(60,40,20,.08), 0 20px 48px rgba(60,40,20,.10);
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --radius: 16px;
  --maxw: 940px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14100d;
    --bg-soft: #1c1712;
    --card: #221c16;
    --card-2: #26201a;
    --ink: #f5ede2;
    --ink-2: #cdbda9;
    --muted: #9a8b78;
    --line: #352d24;
    --shadow: 0 1px 3px rgba(0,0,0,.4), 0 8px 24px rgba(0,0,0,.3);
    --shadow-lg: 0 4px 12px rgba(0,0,0,.5), 0 20px 48px rgba(0,0,0,.4);
  }
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ===== Nav ===== */
nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(12px) saturate(1.4);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: 1080px; margin: 0 auto; padding: 0 22px;
  height: 60px; display: flex; align-items: center; gap: 20px;
}
.brand {
  font-weight: 800; font-size: 16px; text-decoration: none;
  color: var(--ink); display: flex; align-items: center; gap: 8px;
  letter-spacing: -.3px;
}
.brand .logo {
  width: 30px; height: 30px; border-radius: 9px;
  background: linear-gradient(135deg, var(--accent-2), var(--accent-deep));
  display: grid; place-items: center; font-size: 16px;
  box-shadow: 0 2px 8px color-mix(in srgb, var(--accent) 40%, transparent);
}
.nav-links { margin-left: auto; display: flex; gap: 6px; font-size: 14px; }
.nav-links a {
  color: var(--ink-2); text-decoration: none; font-weight: 500;
  padding: 7px 14px; border-radius: 9px; transition: all .18s;
}
.nav-links a:hover { color: var(--accent-deep); background: var(--bg-soft); }
.nav-links a.cta {
  background: linear-gradient(135deg, var(--accent-2), var(--accent-deep));
  color: #fff; font-weight: 600;
  box-shadow: 0 2px 8px color-mix(in srgb, var(--accent) 35%, transparent);
}
.nav-links a.cta:hover { color: #fff; filter: brightness(1.05); transform: translateY(-1px); }

/* ===== Hero ===== */
.hero { padding: 76px 0 48px; text-align: center; position: relative; overflow: hidden; }
.hero-glow {
  position: absolute; top: -140px; left: 50%; transform: translateX(-50%);
  width: 640px; height: 340px; pointer-events: none;
  background: radial-gradient(ellipse at center,
    color-mix(in srgb, var(--accent) 22%, transparent), transparent 70%);
  filter: blur(20px); z-index: 0;
}
.hero > * { position: relative; z-index: 1; }
.pill {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 6px 15px; border-radius: 999px; font-size: 13px; font-weight: 600;
  background: var(--card); border: 1px solid var(--line);
  color: var(--ink-2); box-shadow: var(--shadow); margin-bottom: 22px;
}
.pill .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--green) 25%, transparent); }
.hero h1 {
  font-size: clamp(34px, 6vw, 56px); font-weight: 850; line-height: 1.05;
  letter-spacing: -1.5px; margin-bottom: 18px;
}
.hero h1 .grad {
  background: linear-gradient(115deg, var(--accent-2), var(--accent-deep));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .sub { font-size: clamp(16px, 2.4vw, 20px); color: var(--ink-2); max-width: 620px; margin: 0 auto 30px; }
.hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

@keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
.hero .emoji-float { display: inline-block; animation: floaty 3s ease-in-out infinite; }

/* ===== Cards ===== */
.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 30px 34px; margin-bottom: 24px;
  box-shadow: var(--shadow);
}
.card h2 { font-size: 22px; font-weight: 750; margin-bottom: 16px; letter-spacing: -.4px; }
.card h3 { font-size: 17px; font-weight: 650; margin: 22px 0 8px; }
.card p, .card li { margin-bottom: 8px; color: var(--ink-2); }
.card ul, .card ol { margin: 8px 0 12px 22px; }
.card li { margin-bottom: 5px; }

/* Feature grid */
.feature-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin: 36px 0; }
.feature-card {
  position: relative; background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 32px 30px; text-decoration: none;
  color: inherit; display: block; overflow: hidden;
  transition: transform .2s cubic-bezier(.2,.8,.3,1), box-shadow .2s, border-color .2s;
}
.feature-card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, var(--accent-2), var(--accent-deep));
  transform: scaleX(0); transform-origin: left; transition: transform .25s;
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg);
  border-color: color-mix(in srgb, var(--accent) 35%, var(--line)); }
.feature-card:hover::before { transform: scaleX(1); }
.feature-card .icon {
  font-size: 30px; margin-bottom: 14px; display: grid; place-items: center;
  width: 58px; height: 58px; border-radius: 14px; background: var(--bg-soft);
}
.feature-card h3 { margin-bottom: 8px; font-size: 19px; font-weight: 700; }
.feature-card p { color: var(--ink-2); font-size: 14.5px; margin-bottom: 18px; }
.feature-card .go { color: var(--accent-deep); font-weight: 650; font-size: 14px; }

/* ===== Tables ===== */
.table-wrap { overflow-x: auto; margin: 14px 0; }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
th {
  font-family: var(--mono); font-size: 11px; letter-spacing: 1px; text-transform: uppercase;
  color: var(--muted); text-align: left; padding: 10px 12px; border-bottom: 1.5px solid var(--line);
}
td { padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; color: var(--ink-2); }
tr:last-child td { border-bottom: none; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 12px 26px;
  font-size: 15px; font-weight: 650; border: none; border-radius: 11px;
  background: linear-gradient(135deg, var(--accent-2), var(--accent-deep));
  color: #fff; cursor: pointer; text-decoration: none;
  box-shadow: 0 4px 14px color-mix(in srgb, var(--accent) 35%, transparent);
  transition: transform .15s, box-shadow .2s, filter .15s;
}
.btn:hover { transform: translateY(-2px); filter: brightness(1.06);
  box-shadow: 0 8px 22px color-mix(in srgb, var(--accent) 42%, transparent); }
.btn:active { transform: translateY(0); }
.btn-ghost {
  background: var(--card); color: var(--ink); border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.btn-ghost:hover { background: var(--bg-soft); border-color: color-mix(in srgb, var(--accent) 30%, var(--line)); }

/* Rule boxes */
.rule-box {
  background: var(--bg-soft); border-left: 3px solid var(--accent);
  border-radius: 12px; padding: 14px 18px; margin: 14px 0; font-size: 14.5px;
}

/* ===== Footer ===== */
footer { margin-top: 70px; padding: 30px 0 44px; border-top: 1px solid var(--line);
  text-align: center; font-size: 13.5px; color: var(--muted); }
footer a { color: var(--ink-2); text-decoration: none; margin: 0 12px; }
footer a:hover { color: var(--accent-deep); }

/* Badges */
.badge { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.badge-green { background: color-mix(in srgb, var(--green) 18%, transparent); color: var(--green); }
.badge-red { background: color-mix(in srgb, var(--red) 18%, transparent); color: var(--red); }

/* Game embed */
.game-container { width: 100%; max-width: 680px; margin: 22px auto; border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.game-container iframe { width: 100%; height: 640px; border: none; display: block; }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s, transform .6s; }
.reveal.in { opacity: 1; transform: none; }

/* ===== Responsive ===== */
@media (max-width: 760px) {
  .hero { padding: 52px 0 34px; }
  .card { padding: 22px; }
  .feature-grid { grid-template-columns: 1fr; }
  .game-container iframe { height: 520px; }
  .nav-links a:not(.cta) { display: none; }
}