:root {
  --bg: #0f1116;
  --bg-2: #161a22;
  --card: #1b202b;
  --card-2: #222837;
  --line: #2c3344;
  --text: #e8ecf3;
  --muted: #98a2b3;
  --accent: #f0a12b;      /* Daily orange */
  --accent-2: #e58bc7;    /* Community pink */
  --gold: #f5c84c;
  --silver: #c9d1dc;
  --bronze: #d38b5d;
  --green: #5ad17a;
  --mine: #3cc8d8;
  --radius: 14px;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f4f1ea;
    --bg-2: #ebe6db;
    --card: #ffffff;
    --card-2: #f6f3ec;
    --line: #e2dccf;
    --text: #1d2230;
    --muted: #5f6878;
    --accent: #c9720f;
    --accent-2: #b4458f;
    --gold: #c4930a;
    --silver: #7f8a99;
    --bronze: #a75a2c;
    --green: #2e9d50;
    --mine: #0f8a99;
    color-scheme: light;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: radial-gradient(1200px 500px at 50% -120px, var(--bg-2), var(--bg));
  background-color: var(--bg);
  color: var(--text);
  font: 15px/1.5 Inter, system-ui, -apple-system, "Segoe UI", sans-serif;
  min-height: 100vh;
}
img { max-width: 100%; height: auto; image-rendering: pixelated; }
button { font: inherit; color: inherit; }

/* ---------------- header ---------------- */
.top {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  max-width: 1120px; margin: 0 auto; padding: 16px;
}
.brand img { width: 180px; display: block; }
.tabs { display: flex; gap: 6px; flex: 1; flex-wrap: wrap; }
.tab {
  white-space: nowrap;
  background: transparent; border: 1px solid var(--line); border-radius: 999px;
  padding: 8px 16px; cursor: pointer; color: var(--muted); font-weight: 600;
}
.tab:hover { color: var(--text); border-color: var(--muted); }
.tab[aria-selected="true"] { background: var(--text); color: var(--bg); border-color: var(--text); }
.tools { display: flex; align-items: center; gap: 8px; }
.download {
  display: inline-block; text-decoration: none; font-weight: 700; color: #1a1205;
  background: var(--accent); border-radius: 10px; padding: 8px 14px; white-space: nowrap;
}
.download:hover { filter: brightness(1.08); }
.download.big { padding: 10px 18px; margin: 8px 0; }
.lang {
  background: var(--card); border: 1px solid var(--line); border-radius: 10px;
  padding: 8px 12px; cursor: pointer; font-weight: 700;
}

main { max-width: 1120px; margin: 0 auto; padding: 0 16px 24px; }

/* ---------------- hero ---------------- */
.hero {
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding: 18px 20px; margin: 8px 0 18px; border-radius: var(--radius);
  border: 1px solid var(--line);
}
.hero-daily { background: linear-gradient(120deg, color-mix(in srgb, var(--accent) 22%, var(--card)), var(--card) 65%); }
.hero-community { background: linear-gradient(120deg, color-mix(in srgb, var(--accent-2) 22%, var(--card)), var(--card) 65%); justify-content: center; }
.hero-logo { width: min(320px, 70vw); }
.hero-side { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }
.date { margin: 0; font-weight: 700; color: var(--accent); }
.countdown { margin: 0; color: var(--muted); font: 600 13px/1.3 "JetBrains Mono", monospace; }
.daytoggle { display: inline-flex; background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 3px; }
.seg { border: 0; background: transparent; padding: 6px 14px; border-radius: 8px; cursor: pointer; color: var(--muted); font-weight: 600; }
.seg[aria-pressed="true"] { background: var(--accent); color: #1a1205; }

/* ---------------- cards ---------------- */
.grid2 { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 3fr); gap: 18px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 18px 20px; min-width: 0;
}
.card h2 { margin: 0 0 12px; font-size: 17px; display: flex; align-items: baseline; gap: 8px; }
.count { color: var(--muted); font-weight: 500; font-size: 13px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.special { margin: 0 0 10px; font-weight: 700; color: var(--accent-2); }

.showcase {
  display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap;
  padding: 16px; margin-bottom: 12px; border-radius: 12px;
  background: radial-gradient(circle at 50% 40%, color-mix(in srgb, var(--accent) 22%, var(--card-2)), var(--card-2) 70%);
  border: 1px solid var(--line);
}
.showcase:empty { display: none; }
.showcase img { width: 96px; height: 96px; filter: drop-shadow(0 6px 10px rgba(0,0,0,.35)); }
.objectives img.oicon { width: 24px; height: 24px; flex: none; }
.challenge-head { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.challenge-head h2 { margin: 0; }
.challenge-icon { width: 48px; height: 48px; flex: none; }
.chip img { width: 20px; height: 20px; vertical-align: -5px; margin-right: 6px; }
.objectives { list-style: none; margin: 0 0 12px; padding: 0; display: grid; gap: 8px; }
.objectives li {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px;
  background: var(--card-2); border: 1px solid var(--line); border-radius: 10px;
}
.otype {
  font: 700 11px/1 "JetBrains Mono", monospace; text-transform: uppercase; letter-spacing: .04em;
  padding: 4px 6px; border-radius: 6px; background: var(--bg); color: var(--muted); flex: none;
}
.oname { font-weight: 600; overflow-wrap: anywhere; }

/* ---------------- podium + board ---------------- */
.podium { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-bottom: 12px; align-items: end; }
.podium:empty { display: none; }
.step {
  background: var(--card-2); border: 1px solid var(--line); border-radius: 12px;
  padding: 12px 8px; text-align: center; min-width: 0;
}
.step img { width: 40px; height: 40px; border-radius: 6px; display: block; margin: 0 auto 6px; }
.step .pname { font-weight: 700; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.step .ptime { font: 700 14px/1.2 "JetBrains Mono", monospace; }
.step .medal { font-size: 22px; line-height: 1; }
.step.p1 { order: 2; padding-top: 20px; border-color: var(--gold); }
.step.p2 { order: 1; border-color: var(--silver); }
.step.p3 { order: 3; border-color: var(--bronze); }
.step.p1 .ptime { color: var(--gold); }
.step.p2 .ptime { color: var(--silver); }
.step.p3 .ptime { color: var(--bronze); }

.board { list-style: none; margin: 0; padding: 0; max-height: 520px; overflow-y: auto; }
.row {
  display: grid; grid-template-columns: 34px 24px minmax(0, 1fr) auto; align-items: center; gap: 10px;
  padding: 7px 8px; border-radius: 8px;
}
.row:nth-child(odd) { background: color-mix(in srgb, var(--card-2) 70%, transparent); }
.row .rank { color: var(--muted); font: 600 13px/1 "JetBrains Mono", monospace; text-align: right; }
.row .head { width: 24px; height: 24px; border-radius: 4px; background: var(--bg); }
.row .name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 500; }
.row .time { font: 700 13px/1 "JetBrains Mono", monospace; color: var(--green); }
.wins .row .time { color: var(--gold); }
.history .row { grid-template-columns: 92px 24px minmax(0, 1fr) auto; }
.history .row .rank { text-align: left; }
.state { color: var(--muted); margin: 10px 0 0; font-size: 14px; }
.state:empty { display: none; }

/* ---------------- challenges ---------------- */
.chips { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 10px; margin-bottom: 12px; scrollbar-width: thin; }
.chip {
  flex: none; border: 1px solid var(--line); background: var(--card); border-radius: 999px;
  padding: 7px 14px; cursor: pointer; color: var(--muted); font-weight: 600; white-space: nowrap;
}
.chip:hover { color: var(--text); }
.chip[aria-selected="true"] { background: var(--accent-2); border-color: var(--accent-2); color: #24081a; }
.badge {
  display: inline-block; font: 700 12px/1 "JetBrains Mono", monospace; text-transform: uppercase;
  padding: 5px 8px; border-radius: 6px; background: var(--card-2); border: 1px solid var(--line);
}
.badge.easy { color: var(--green); border-color: var(--green); }
.badge.medium { color: var(--accent); border-color: var(--accent); }
.badge.hard, .badge.extreme { color: #ff6b6b; border-color: #ff6b6b; }

/* ---------------- footer ---------------- */
.foot { max-width: 1120px; margin: 0 auto; padding: 8px 16px 32px; text-align: center; }
.foot p { margin: 4px 0; }

@media (max-width: 820px) {
  .grid2 { grid-template-columns: minmax(0, 1fr); }
  .hero-side { align-items: flex-start; }
  .brand img { width: 140px; }
}
@media (max-width: 600px) {
  .top { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px; }
  .tools .download { display: none; } /* still in the footer */
  .tabs { grid-column: 1 / -1; grid-row: 2; flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; }
  .tabs::-webkit-scrollbar { display: none; }
  .tab { flex: 1 0 auto; text-align: center; }
}
@media (max-width: 420px) {
  .podium { gap: 6px; }
  .step { padding: 10px 4px; }
  .step img { width: 32px; height: 32px; }
  .history .row { grid-template-columns: 78px 24px minmax(0, 1fr) auto; gap: 6px; }
}