/* ==========================================================================
   Archive ACPC — theme "competitive programming"
   Fond sombre facon editeur/terminal, verdicts Codeforces, accents medaille.
   ========================================================================== */

:root {
  --bg: #0a0e14;            /* plan de la page */
  --panel: #101724;         /* surfaces (cartes, sidebar) */
  --panel-2: #0d1420;       /* surfaces enfoncees (code, samples) */
  --border: rgba(255, 255, 255, 0.09);
  --ink: #e8edf4;           /* texte principal */
  --ink-2: #9aa7b8;         /* texte secondaire */
  --muted: #66748a;         /* libelles, meta */
  --accent: #f0a03c;        /* or ACPC / medaille */
  --accent-dim: rgba(240, 160, 60, 0.14);
  --ac: #0ca30c;            /* verdict Accepted  (valide ≥3:1 sur fond sombre) */
  --ac-bright: #3fd23f;
  --wa: #d03b3b;            /* verdict Wrong answer */
  --warn: #fab219;          /* verdict partiel / TLE */
  --link: #7aa2ff;          /* bleu "expert" lisible sur sombre */
  --mono: ui-monospace, "JetBrains Mono", "Fira Code", "Cascadia Code", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100vh;
}

body {
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(240, 160, 60, 0.06), transparent 60%),
    radial-gradient(900px 400px at -10% 110%, rgba(122, 162, 255, 0.05), transparent 60%),
    var(--bg);
  color: var(--ink);
  font: 15px/1.55 var(--sans);
  display: flex;
  flex-direction: column;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

code { font-family: var(--mono); font-size: 0.92em; background: var(--panel-2); padding: 1px 6px; border-radius: 4px; }

/* ------------------------------------------------------------------ topbar */

.topbar {
  display: flex;
  align-items: center;
  gap: 26px;
  padding: 0 22px;
  height: 52px;
  background: rgba(10, 14, 20, 0.92);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(6px);
}

.brand {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 15px;
  color: var(--ink);
  white-space: nowrap;
}
.brand:hover { text-decoration: none; }
.brand-prompt { color: var(--accent); }
.brand-dollar { color: var(--ink-2); margin-left: 7px; }
.cursor {
  display: inline-block;
  width: 8px; height: 15px;
  margin-left: 6px;
  vertical-align: -2px;
  background: var(--ac-bright);
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.tabs { display: flex; gap: 4px; font-family: var(--mono); font-size: 13px; }
.tabs a {
  padding: 6px 12px;
  border-radius: 6px;
  color: var(--ink-2);
}
.tabs a:hover { color: var(--ink); background: rgba(255, 255, 255, 0.05); text-decoration: none; }
.tabs a.active { color: var(--accent); background: var(--accent-dim); }
.tabs a.active::before { content: "> "; }

.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 16px; }

.switch {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-2);
  cursor: pointer;
  user-select: none;
}
.switch input { accent-color: var(--accent); cursor: pointer; }

.lang-toggle {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 11px;
  cursor: pointer;
}
.lang-toggle:hover { border-color: var(--accent); color: var(--accent); }
.lang-toggle::before { content: "🌐 "; }

/* ------------------------------------------------------------------ layout */

.layout { display: flex; flex: 1; min-height: 0; }

.sidebar {
  width: 262px;
  flex-shrink: 0;
  padding: 18px 14px;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: sticky;
  top: 52px;
  height: calc(100vh - 52px - 30px);
  overflow-y: auto;
}

.sidebar input[type="search"],
.filters select {
  width: 100%;
  background: var(--panel-2);
  color: var(--ink);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 8px 11px;
  font: 13px var(--mono);
  outline: none;
}
.sidebar input[type="search"]:focus, .filters select:focus { border-color: var(--accent); }
.filters { display: flex; flex-direction: column; gap: 8px; }

.edition-list { display: flex; flex-direction: column; gap: 2px; margin-top: 4px; }
.edition-list a {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 6px;
  border-left: 2px solid transparent;
  color: var(--ink-2);
  font: 13px var(--mono);
}
.edition-list a:hover { background: rgba(255, 255, 255, 0.04); text-decoration: none; color: var(--ink); }
.edition-list a.active { background: var(--accent-dim); color: var(--accent); border-left-color: var(--accent); }
.edition-list .year { color: var(--muted); font-size: 11px; }
.edition-list a.active .year { color: var(--accent); }

.main {
  flex: 1;
  min-width: 0;
  width: 100%;
  padding: 30px 38px 70px;
  max-width: 1120px;
  /* centre le contenu, surtout quand la sidebar est cachee (Team, Downloads…) */
  margin: 0 auto;
}

/* ------------------------------------------------------------------- texte */

h1 {
  font-family: var(--mono);
  font-size: 26px;
  margin: 0 0 6px;
  letter-spacing: -0.5px;
}
h1::before { content: "// "; color: var(--muted); }

h2 {
  font-family: var(--mono);
  font-size: 17px;
  margin: 34px 0 12px;
  color: var(--ink);
}
h2::before { content: "## "; color: var(--accent); }

h3 { font-family: var(--mono); font-size: 14px; margin: 0 0 10px; color: var(--accent); }

.subtitle { color: var(--ink-2); margin: 0 0 22px; font-size: 14px; }

.intro {
  background: linear-gradient(160deg, rgba(240, 160, 60, 0.08), rgba(122, 162, 255, 0.05)), var(--panel);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 10px;
  padding: 15px 20px;
  margin: 12px 0 18px;
  max-width: 860px;
  font-size: 14.5px;
  color: var(--ink);
}
.intro .badge { vertical-align: 1px; }
.muted { color: var(--muted); font-size: 13px; }
.placeholder { color: var(--muted); font-family: var(--mono); padding: 40px 0; }
.dots::after { content: ""; animation: dots 1.4s steps(4) infinite; }
@keyframes dots { 0% { content: ""; } 25% { content: "."; } 50% { content: ".."; } 75% { content: "..."; } }

.crumbs { font: 12px var(--mono); color: var(--muted); margin-bottom: 10px; }

/* ----------------------------------------------------------------- badges */

.badge {
  display: inline-block;
  font: 700 11px/1 var(--mono);
  padding: 4px 8px;
  border-radius: 5px;
  border: 1px solid var(--border);
  color: var(--ink-2);
  letter-spacing: 0.4px;
  white-space: nowrap;
}
.badge.ok    { color: var(--ac-bright); border-color: rgba(12, 163, 12, 0.4); background: rgba(12, 163, 12, 0.10); }
.badge.warn  { color: var(--warn); border-color: rgba(250, 178, 25, 0.35); background: rgba(250, 178, 25, 0.08); }
.badge.bad   { color: #ff7a7a; border-color: rgba(208, 59, 59, 0.45); background: rgba(208, 59, 59, 0.10); }
.badge.plain { color: var(--ink-2); }

.verdict-chip {
  font: 700 10px/1 var(--mono);
  padding: 3px 7px;
  border-radius: 4px;
  letter-spacing: 0.8px;
}
.verdict-chip.ac { color: #04140a; background: var(--ac-bright); }

.tag {
  display: inline-block;
  font: 11px var(--mono);
  color: var(--link);
  background: rgba(122, 162, 255, 0.10);
  border: 1px solid rgba(122, 162, 255, 0.25);
  padding: 2px 8px;
  border-radius: 999px;
  margin: 1px 3px 1px 0;
}

/* ------------------------------------------------------------- stat tiles */

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin: 20px 0 28px;
}
.stat {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px 13px;
  position: relative;
  overflow: hidden;
}
.stat::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--accent);
  opacity: 0.85;
}
.stat .value { font: 700 28px/1.1 var(--mono); color: var(--ink); }
.stat .label { font: 11px var(--mono); color: var(--muted); margin-top: 5px; letter-spacing: 0.6px; text-transform: uppercase; }

/* ------------------------------------------------------------------ table */

table.problems {
  width: 100%;
  border-collapse: collapse;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  font-size: 14px;
}
table.problems thead th {
  text-align: left;
  font: 700 11px var(--mono);
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--muted);
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--panel-2);
}
table.problems td { padding: 10px 14px; border-bottom: 1px solid rgba(255, 255, 255, 0.04); vertical-align: top; }
table.problems tbody tr:last-child td { border-bottom: none; }
table.problems tbody tr:hover { background: rgba(255, 255, 255, 0.025); }
td.idx { font: 700 14px var(--mono); color: var(--accent); width: 36px; }
td.name a { color: var(--ink); font-weight: 600; }
td.name a:hover { color: var(--link); }
td.name small { display: block; color: var(--muted); font-weight: 400; margin-top: 2px; }

/* --------------------------------------------------------------- probleme */

.limits { display: flex; flex-wrap: wrap; gap: 7px; margin: 4px 0 18px; }

.statement {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 26px 30px;
  max-width: 860px;
  font-size: 15px;
}
.statement img { max-width: 100%; }
.statement pre { background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; padding: 12px; overflow-x: auto; font-family: var(--mono); font-size: 13px; }

.samples { display: flex; flex-direction: column; gap: 12px; }
.sample { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.io-label { font: 700 11px var(--mono); text-transform: uppercase; letter-spacing: 0.8px; color: var(--muted); margin-bottom: 5px; }
.sample pre {
  margin: 0;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  padding: 11px 13px;
  font: 13px/1.5 var(--mono);
  overflow-x: auto;
}
.sample > div:last-child pre { border-left-color: var(--ac); }

.notice {
  background: var(--accent-dim);
  border: 1px solid rgba(240, 160, 60, 0.35);
  border-radius: 9px;
  padding: 13px 16px;
  font-size: 14px;
  max-width: 860px;
}

/* lien "voir la source" dans la barre de badges, aligne sur les soumissions */
a.link-badge { color: var(--link); border-color: rgba(122, 162, 255, 0.35); background: rgba(122, 162, 255, 0.10); }
a.link-badge:hover { border-color: var(--link); text-decoration: none; }

/* ------------------------------------------------------------ enonce PDF */

.pdf-block { display: flex; flex-direction: column; gap: 10px; }
.pdf-bar { display: flex; align-items: center; gap: 14px; font: 12px var(--mono); }
.pdf-frame {
  width: 100%;
  height: 78vh;
  min-height: 460px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff; /* un PDF se lit sur blanc, meme en theme sombre */
}
.pdf-text summary { font: 12px var(--mono); color: var(--ink-2); cursor: pointer; padding: 6px 0; }
.pdf-text pre {
  white-space: pre-wrap;
  max-height: 420px;
  overflow-y: auto;
  font: 12px/1.6 var(--mono);
}

/* -------------------------------------------------------------- solutions */

.sol-stack { display: flex; flex-direction: column; gap: 8px; }
.sol-item { border: 1px solid var(--border); border-radius: 10px; background: var(--panel); overflow: hidden; }
.sol-item.open { border-color: rgba(63, 210, 63, 0.35); }
.sol-head {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  color: var(--ink);
  font: 700 13px var(--mono);
  padding: 11px 14px;
  cursor: pointer;
}
.sol-head:hover { background: rgba(255, 255, 255, 0.03); }
.sol-arrow { color: var(--accent); transition: transform 0.15s ease; }
.sol-item.open .sol-arrow { transform: rotate(90deg); }
.sol-title { white-space: nowrap; }
.sol-meta-inline { font-weight: 400; color: var(--muted); font-size: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sol-body { padding: 0 14px 14px; }

.solution-meta { font: 12px var(--mono); color: var(--ink-2); margin-bottom: 9px; }

.code-block { position: relative; }
.code-block pre {
  margin: 0;
  background: #0b1019;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 20px;
  overflow-x: auto;
  font: 14.5px/1.55 var(--mono);
  max-height: 78vh;
  overflow-y: auto;
}
.code-block .copy {
  position: absolute;
  top: 9px; right: 9px;
  font: 700 11px var(--mono);
  color: var(--ink-2);
  background: rgba(16, 23, 36, 0.9);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 11px;
  cursor: pointer;
}
.code-block .copy:hover { color: var(--accent); border-color: var(--accent); }

.reveal {
  display: block;
  width: 100%;
  max-width: 860px;
  font: 700 13px var(--mono);
  color: var(--warn);
  background: rgba(250, 178, 25, 0.07);
  border: 1px dashed rgba(250, 178, 25, 0.45);
  border-radius: 10px;
  padding: 22px;
  cursor: pointer;
  text-align: center;
}
.reveal:hover { background: rgba(250, 178, 25, 0.12); }

/* ---------------------------------------------------------------- cartes */

.ai-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 22px;
  margin: 14px 0;
  max-width: 860px;
}
.ai-card dl { margin: 0; }
.ai-card dt { font: 700 11px var(--mono); text-transform: uppercase; letter-spacing: 0.7px; color: var(--muted); margin-top: 12px; }
.ai-card dt:first-child { margin-top: 0; }
.ai-card dd { margin: 4px 0 0; }
.ai-card ul { margin: 4px 0 0; padding-left: 20px; }

ul.prose { max-width: 860px; }
ul.prose li { margin-bottom: 6px; }

/* -------------------------------------------------------------- bar chart */

.bar-row {
  display: grid;
  grid-template-columns: 210px 1fr 46px;
  align-items: center;
  gap: 12px;
  margin-bottom: 7px;
  max-width: 860px;
  font: 13px var(--mono);
}
.bar-row > span:first-child { text-align: right; color: var(--ink-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bar { background: rgba(255, 255, 255, 0.05); border-radius: 4px; height: 18px; overflow: hidden; }
.bar > div { height: 100%; background: var(--accent); border-radius: 0 4px 4px 0; min-width: 2px; }
.bar-row .count { color: var(--ink); font-weight: 700; }
.bar-row:hover .bar > div { background: #ffbb59; }

/* ------------------------------------------------------------------- team */

.team-hero {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  margin-bottom: 26px;
  background:
    linear-gradient(160deg, rgba(240, 160, 60, 0.12), rgba(10, 14, 20, 0.4) 55%),
    var(--panel);
  padding: 34px 36px;
}
.team-hero h1 { font-size: 40px; margin: 0; }
.team-hero h1::before { content: none; }
.team-hero .team-title-line { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; }
.team-hero .tagline { font: italic 15px var(--sans); color: var(--ink-2); margin: 6px 0 0; }
.team-hero .about { max-width: 720px; margin-top: 16px; color: var(--ink); font-size: 15px; }
.team-hero .meta { font: 12px var(--mono); color: var(--muted); margin-top: 14px; }

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 14px;
  max-width: 900px;
}
.member {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  text-align: center;
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.member:hover { transform: translateY(-3px); border-color: var(--accent); }
.member img {
  width: 108px; height: 108px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--accent);
  box-shadow: 0 0 0 3px rgba(240, 160, 60, 0.18);
}
.member .name { font: 700 15px var(--sans); margin-top: 12px; }
.member .member-title { font: 11px var(--mono); color: var(--muted); margin-top: 3px; }
.member .handle { font: 700 13px var(--mono); margin-top: 2px; }
.member .ratings { font: 12px var(--mono); color: var(--ink-2); margin-top: 8px; display: flex; justify-content: center; gap: 12px; }
.member .ratings b { color: var(--ink); }
.member .cf-link { font: 11px var(--mono); display: inline-block; margin-top: 10px; }

/* git log --graph pour le palmares */
.gitlog {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  max-width: 860px;
  font: 13px/1.9 var(--mono);
  overflow-x: auto;
}
.gitlog .cmd { color: var(--muted); margin-bottom: 10px; }
.gitlog .cmd::before { content: "$ "; color: var(--ac-bright); }
.gitlog .commit { white-space: nowrap; }
.gitlog .graph { color: var(--accent); }
.gitlog .hash { color: var(--link); }
.gitlog .tag-chip {
  font: 700 10px var(--mono);
  color: var(--accent);
  border: 1px solid rgba(240, 160, 60, 0.45);
  border-radius: 4px;
  padding: 1px 6px;
  margin: 0 6px;
}
.gitlog .v-ac { color: var(--ac-bright); font-weight: 700; }
.gitlog .v-wa { color: #ff7a7a; font-weight: 700; }

/* TODO list des objectifs */
.todo {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  max-width: 860px;
  font: 14px/2 var(--mono);
}
.todo .comment { color: var(--muted); }
.todo .item .box { font-weight: 700; }
.todo .item.done .box { color: var(--ac-bright); }
.todo .item.done .text { color: var(--ink-2); text-decoration: line-through; text-decoration-color: rgba(63, 210, 63, 0.5); }
.todo .item.pending .box { color: var(--warn); }
.todo .item.pending .text { color: var(--ink); }

.photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
  max-width: 900px;
}
.photo-card { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
.photo-card img { width: 100%; height: 210px; object-fit: cover; display: block; }
.photo-card figcaption { font: 12px var(--mono); color: var(--ink-2); padding: 10px 14px; }

/* -------------------------------------------------------------- statusline */

.statusline {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: 30px;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 0 16px;
  background: #0c111b;
  border-top: 1px solid var(--border);
  font: 11px var(--mono);
  color: var(--muted);
  z-index: 10;
}
.statusline .mode { color: var(--accent); font-weight: 700; }
.statusline-right { margin-left: auto; display: flex; align-items: center; gap: 14px; }

/* -------------------------------------------------------------- responsive */

@media (max-width: 900px) {
  .layout { flex-direction: column; }
  .sidebar { width: 100%; height: auto; position: static; border-right: none; border-bottom: 1px solid var(--border); }
  .main { padding: 20px 16px 70px; }
  .sample { grid-template-columns: 1fr; }
  .topbar { flex-wrap: wrap; height: auto; padding: 10px 14px; gap: 10px; }
  .bar-row { grid-template-columns: 120px 1fr 40px; }
}

/* KaTeX un poil plus grand que le texte pour rester lisible sur sombre */
.katex { font-size: 1.06em; }