/* ============================================================
   Maratona — identidade "Tela do Juiz"
   Display: Space Grotesk · Corpo: Inter · Mono: JetBrains Mono
   ============================================================ */
:root {
  --ink: #0B1020;
  --ink-2: #101830;
  --ink-3: #16213f;
  --line: #223052;
  --line-soft: #1a2740;
  --paper: #EAF0FF;
  --muted: #8B9BC4;
  --muted-2: #5f6f97;
  --brand: #8B5CF6;        /* roxo DevHub — acento principal */
  --brand-2: #4F8EF7;      /* azul DevHub — par do gradiente */
  --grad: linear-gradient(120deg, #4F8EF7, #8B5CF6);
  --ac: #8B5CF6;           /* alias: acento (roxo) */
  --ok: #3DDC97;           /* verde reservado ao veredicto "Aceito" */
  --amber: #FFB454;        /* tempo / contagem regressiva */
  --wa: #FF6B6B;           /* erros, usado com parcimônia */
  --radius: 14px;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --display: "Space Grotesk", system-ui, sans-serif;
  --body: "Inter", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--body);
  color: var(--paper);
  background: var(--ink);
  background-image:
    radial-gradient(circle at 1px 1px, rgba(139,92,246,.10) 1px, transparent 0);
  background-size: 26px 26px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--ac); text-decoration: none; }
a:hover { text-decoration: underline; }
::selection { background: var(--brand); color: #fff; }

/* ---------- Navbar ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 1.5rem;
  padding: .85rem clamp(1rem, 4vw, 2.4rem);
  background: rgba(11,16,32,.78);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line-soft);
}
.nav .brand {
  display: flex; align-items: center; gap: .55rem;
  font-family: var(--display); font-weight: 700; font-size: 1.05rem;
  color: var(--paper); letter-spacing: -.01em;
}
.nav .brand:hover { text-decoration: none; }
.nav .brand .mark {
  font-family: var(--mono); font-size: .7rem; font-weight: 700;
  color: #fff; background: var(--grad);
  padding: .12rem .38rem; border-radius: 5px; letter-spacing: .02em;
}
.nav .links { display: flex; gap: 1.3rem; align-items: center; margin-left: .5rem; }
.nav .links a { color: var(--muted); font-size: .92rem; font-weight: 500; }
.nav .links a:hover { color: var(--paper); text-decoration: none; }
.nav .spacer { flex: 1; }

/* ---------- Botões ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font-family: var(--body); font-weight: 650; font-size: .95rem;
  color: #fff; background: var(--grad);
  border: none; border-radius: 10px; padding: .7rem 1.25rem; cursor: pointer;
  transition: transform .08s ease, filter .15s ease, box-shadow .15s ease;
  box-shadow: 0 1px 0 rgba(255,255,255,.18) inset, 0 10px 26px -12px rgba(139,92,246,.7);
}
.btn:hover { filter: brightness(1.06); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn.block { width: 100%; padding: .85rem; font-size: 1rem; }
.btn.ghost {
  color: var(--paper); background: transparent;
  border: 1px solid var(--line); box-shadow: none;
}
.btn.ghost:hover { border-color: var(--ac); color: var(--ac); filter: none; }
.btn.danger { background: transparent; color: var(--wa); border: 1px solid rgba(255,107,107,.35); box-shadow: none; }
.btn.danger:hover { background: rgba(255,107,107,.1); filter: none; }

/* ---------- Layout ---------- */
.container { max-width: 1080px; margin: 0 auto; padding: 2.2rem clamp(1rem, 4vw, 2rem) 5rem; }
.container.wide { max-width: 1280px; }
.eyebrow {
  font-family: var(--mono); font-size: .8rem; font-weight: 600;
  color: var(--ac); letter-spacing: .04em; text-transform: uppercase;
  display: inline-flex; align-items: center; gap: .5rem;
}
h1, h2, h3 { font-family: var(--display); letter-spacing: -.02em; line-height: 1.08; }
.muted { color: var(--muted); }

.card {
  background: var(--ink-2);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 1.5rem;
}

/* ---------- HERO ---------- */
.hero {
  display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
  max-width: 1180px; margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 5rem) clamp(1rem, 4vw, 2rem) 3rem;
}
.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.4rem); font-weight: 700; margin: 1rem 0 .8rem;
}
.hero h1 .accent {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .tagline { font-size: clamp(1.05rem, 2vw, 1.25rem); color: var(--muted); max-width: 30ch; }
.hero-meta { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.6rem; }
.chip {
  font-family: var(--mono); font-size: .82rem; color: var(--paper);
  background: var(--ink-3); border: 1px solid var(--line);
  padding: .4rem .7rem; border-radius: 8px;
  display: inline-flex; align-items: center; gap: .45rem;
}
.chip .k { color: var(--muted-2); }

/* ---------- Contador regressivo (assinatura) ---------- */
.countdown { margin-top: 2rem; max-width: 420px; }
.term {
  background: #070b16; border: 1px solid var(--line);
  border-radius: 12px; overflow: hidden;
}
.term-bar {
  display: flex; align-items: center; gap: .5rem;
  padding: .55rem .8rem; border-bottom: 1px solid var(--line-soft);
  font-family: var(--mono); font-size: .72rem; color: var(--muted-2);
}
.term-bar .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--line); }
.term-bar .dot.g { background: var(--ac); }
.term-bar .dot.a { background: var(--amber); }
.term-bar .dot.r { background: var(--wa); }
.term-bar .label { margin-left: auto; }
.cd-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.cd-cell { text-align: center; padding: 1rem .4rem; border-right: 1px solid var(--line-soft); }
.cd-cell:last-child { border-right: none; }
.cd-num {
  font-family: var(--mono); font-weight: 700; font-size: clamp(1.7rem, 4vw, 2.4rem);
  color: var(--amber); font-variant-numeric: tabular-nums; line-height: 1;
}
.cd-lab { font-family: var(--mono); font-size: .66rem; text-transform: uppercase; color: var(--muted-2); margin-top: .45rem; letter-spacing: .08em; }
.cd-live { padding: 1.2rem; text-align: center; font-family: var(--mono); color: var(--ac); font-weight: 700; }
.cursor { display: inline-block; width: .6ch; background: var(--ac); animation: blink 1.05s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* ---------- Formulário de inscrição ---------- */
.signup {
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 16px; overflow: hidden;
  box-shadow: 0 40px 80px -50px rgba(0,0,0,.9);
}
.signup-head {
  padding: 1.1rem 1.4rem; border-bottom: 1px solid var(--line-soft);
  display: flex; align-items: center; justify-content: space-between;
  background: linear-gradient(180deg, rgba(139,92,246,.08), transparent);
}
.signup-head h2 { font-size: 1.15rem; }
.signup-head .pill { background: rgba(139,92,246,.18); color: #b9a3ff; }
.signup-body { padding: 1.4rem; }

label { display: block; font-size: .82rem; color: var(--muted); margin: 0 0 .35rem; font-weight: 500; }
.field { margin-bottom: 1rem; }
.hint { color: var(--muted-2); font-size: .78rem; }
input, textarea, select {
  width: 100%; padding: .68rem .8rem;
  background: #0a0f1e; color: var(--paper);
  border: 1px solid var(--line); border-radius: 9px;
  font-family: var(--body); font-size: .95rem; transition: border-color .15s, box-shadow .15s;
}
input::placeholder, textarea::placeholder { color: var(--muted-2); }
input:focus, textarea:focus, select:focus {
  outline: none; border-color: var(--ac);
  box-shadow: 0 0 0 3px rgba(139,92,246,.22);
}
textarea.code { font-family: var(--mono); font-size: .86rem; min-height: 300px; resize: vertical; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: .9rem; }
.form-note { font-size: .8rem; color: var(--muted-2); margin-top: .9rem; text-align: center; }

/* ---------- Alertas ---------- */
.alert {
  border-radius: 10px; padding: .75rem 1rem; margin-bottom: 1rem; font-size: .9rem;
}
.alert.err { background: rgba(255,107,107,.1); border: 1px solid rgba(255,107,107,.4); color: #ffc9c9; }
.alert.info { background: rgba(139,92,246,.1); border: 1px solid rgba(139,92,246,.35); color: #d5c8ff; }

/* ---------- Seções ---------- */
.section { max-width: 1080px; margin: 0 auto; padding: clamp(2.5rem,6vw,4rem) clamp(1rem,4vw,2rem); }
.section-title { font-size: clamp(1.6rem, 3vw, 2.2rem); margin-bottom: 2rem; }
.section-title .num { font-family: var(--mono); color: var(--ac); font-size: .9rem; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.step { border-left: 2px solid var(--line); padding-left: 1.1rem; }
.step .idx { font-family: var(--mono); color: var(--ac); font-size: .85rem; font-weight: 700; }
.step h3 { font-size: 1.15rem; margin: .5rem 0 .4rem; }
.step p { color: var(--muted); font-size: .92rem; margin: 0; }

.langs { display: flex; flex-wrap: wrap; gap: .6rem; }
.lang {
  font-family: var(--mono); font-size: .85rem;
  border: 1px solid var(--line); background: var(--ink-2);
  padding: .5rem .85rem; border-radius: 999px; color: var(--paper);
}

/* ---------- Rodapé ---------- */
.foot {
  border-top: 1px solid var(--line-soft); margin-top: 2rem;
  padding: 2rem clamp(1rem,4vw,2rem); text-align: center;
  color: var(--muted-2); font-size: .85rem;
}
.foot a { color: var(--muted); }

/* ---------- Pills / veredictos ---------- */
.pill { display: inline-block; padding: .18rem .6rem; border-radius: 999px; font-size: .78rem; font-weight: 600; font-family: var(--mono); }
.pill.ok { background: rgba(61,220,151,.15); color: var(--ok); }
.pill.bad { background: rgba(255,107,107,.15); color: var(--wa); }
.pill.judging { background: rgba(96,165,250,.15); color: #7fb2ff; }
.pill.med { background: rgba(255,180,84,.15); color: var(--amber); }

/* ---------- Tabelas ---------- */
table { width: 100%; border-collapse: collapse; }
th, td { padding: .65rem .75rem; text-align: left; border-bottom: 1px solid var(--line-soft); }
th { color: var(--muted-2); font-weight: 600; font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; font-family: var(--mono); }
tbody tr[data-href] { cursor: pointer; }
tbody tr:hover { background: var(--ink-3); }

/* ---------- Mural de problemas ---------- */
.grid-problems { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px,1fr)); gap: 1rem; }
.problem-card { display: flex; align-items: center; gap: .9rem; }
.problem-card .letter {
  width: 46px; height: 46px; flex: none; display: grid; place-items: center;
  background: var(--ink-3); border: 1px solid var(--line);
  border-radius: 10px; font-family: var(--display); font-weight: 700; font-size: 1.3rem; color: var(--ac);
}
.problem-card.solved { border-color: rgba(61,220,151,.4); }

/* ---------- Placar ---------- */
.scoreboard td.cell { text-align: center; font-family: var(--mono); font-size: .8rem; }
.cell .n { display: block; font-weight: 700; }
.cell.solved { background: rgba(61,220,151,.14); color: var(--ok); }
.cell.tried { background: rgba(255,107,107,.1); color: var(--wa); }
.cell.partial { background: rgba(255,180,84,.14); color: var(--amber); }
.cell.pending { background: rgba(96,165,250,.12); color: #7fb2ff; }
.rank { font-family: var(--mono); color: var(--muted); font-weight: 700; }
.me { outline: 2px solid var(--ac); outline-offset: -2px; }

.prose { max-width: 760px; }
.prose pre { background: #070b16; padding: 1rem; border-radius: 8px; overflow-x: auto; border: 1px solid var(--line); }
.prose code { font-family: var(--mono); font-size: .88rem; }
.prose table { margin: 1rem 0; }
pre { font-family: var(--mono); font-size: .85rem; overflow-x: auto; }
.row { display: flex; gap: 1rem; flex-wrap: wrap; }
.row > * { flex: 1; min-width: 160px; }

/* ---------- Responsivo ---------- */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .countdown { max-width: none; }
  .steps { grid-template-columns: 1fr; }
  .nav .links { display: none; }
}
@media (max-width: 520px) {
  .two-col { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto; }
}
:focus-visible { outline: 2px solid var(--ac); outline-offset: 2px; }