/* SyntaxHacks 2026 — phosphor-terminal theme. One direction, picked by the brief: black + green hacker console. */
:root {
  --bg: #040806;
  --bg2: #060b07;
  --panel: #080e09;
  --line: #143620;
  --line-bright: #1f5c33;
  --green: #00ff66;
  --green-hot: #4dff8a;
  --ink: #d2f5dc;
  --muted: #7fa88d;
  --dim: #4c6a56;
  --amber: #ffb000;
  --red: #ff5470;
  --font-d: "Chakra Petch", "JetBrains Mono", ui-monospace, monospace;
  --font-m: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-m);
  font-size: 16px;
  line-height: 1.65;
  overflow-x: hidden;
}
::selection { background: var(--green); color: #031007; }

h1, h2, h3 { font-family: var(--font-d); line-height: 1.05; margin: 0 0 16px; letter-spacing: -0.01em; }
h2 { font-size: clamp(30px, 4.6vw, 52px); color: #eafff0; }
p { margin: 0 0 14px; }
a { color: var(--green); }
a:hover, a:focus-visible { color: var(--green-hot); }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; }

#rain {
  position: fixed; inset: 0; z-index: 0;
  opacity: 0.16; pointer-events: none;
}
.scanlines {
  position: fixed; inset: 0; z-index: 50; pointer-events: none;
  background: repeating-linear-gradient(to bottom, transparent 0 3px, rgba(0, 0, 0, 0.22) 3px 4px);
  mix-blend-mode: multiply;
}
main, .nav, footer { position: relative; z-index: 1; }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0;
  display: flex; align-items: center; gap: 28px;
  padding: 14px 28px;
  background: #040806;
  border-bottom: 1px solid var(--line);
  z-index: 20;
}
.brand { display: flex; align-items: baseline; gap: 8px; text-decoration: none; }
.brand-mark { color: var(--green); font-weight: 700; }
.brand-name { color: #eafff0; font-weight: 700; letter-spacing: -0.02em; font-family: var(--font-d); font-size: 19px; }
.brand-ver { color: var(--dim); font-size: 12px; border: 1px solid var(--line); padding: 1px 7px; border-radius: 3px; }
.nav-links { display: flex; gap: 22px; margin-left: auto; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 14px; }
.nav-links a:hover { color: var(--green); }
.nav-links a::before { content: "./"; color: var(--dim); }
.nav-cta { display: flex; align-items: center; gap: 10px; }
.menu-btn { display: none; background: none; border: 1px solid var(--line); color: var(--green); font: inherit; padding: 6px 10px; border-radius: 4px; cursor: pointer; }
.mobile-menu { display: none; }

/* ---------- buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-m); font-weight: 700; font-size: 15px;
  text-decoration: none; border-radius: 4px;
  padding: 13px 24px; border: 1px solid var(--green);
  transition: background 0.15s, color 0.15s, box-shadow 0.15s;
}
.btn-solid { background: var(--green); color: #031007; box-shadow: 0 0 22px rgba(0, 255, 102, 0.25); }
.btn-solid:hover, .btn-solid:focus-visible { background: var(--green-hot); color: #031007; box-shadow: 0 0 34px rgba(0, 255, 102, 0.45); }
.btn-ghost { background: transparent; color: var(--green); }
.btn-ghost:hover, .btn-ghost:focus-visible { background: rgba(0, 255, 102, 0.1); color: var(--green-hot); }
.btn-sm { padding: 9px 16px; font-size: 13px; }
.btn-lg { font-size: 17px; padding: 16px 34px; }

/* ---------- hero ---------- */
.hero {
  max-width: var(--max); margin: 0 auto;
  padding: 72px 28px 56px;
  display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 44px; align-items: start;
}
.sysline { color: var(--green); font-size: 13px; letter-spacing: 0.04em; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.sysline .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--green); box-shadow: 0 0 12px var(--green); animation: pulse 2s infinite; }
@keyframes pulse { 50% { opacity: 0.35; } }
.sysline .sep { color: var(--dim); }
.hero-title {
  font-size: clamp(64px, 10vw, 128px);
  font-weight: 700; color: #eafff0;
  margin: 18px 0 6px;
  text-shadow: 0 0 42px rgba(0, 255, 102, 0.28);
}
.cursor { color: var(--green); animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.hero-sub { color: var(--muted); font-size: 15px; }
.hero-lede { font-size: 19px; color: var(--ink); max-width: 34ch; border-left: 3px solid var(--green); padding-left: 16px; margin: 22px 0 26px; }
.hero-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); margin: 0 0 28px; max-width: 560px; }
.hero-meta div { background: var(--bg); padding: 12px 16px; }
.hero-meta dt { font-size: 12px; color: var(--dim); }
.hero-meta dd { margin: 2px 0 0; color: var(--green-hot); font-weight: 500; font-size: 15px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }

/* terminal */
.term {
  border: 1px solid var(--line-bright);
  background: rgba(6, 12, 7, 0.92);
  border-radius: 8px; overflow: hidden;
  box-shadow: 0 0 60px rgba(0, 255, 102, 0.09), inset 0 0 80px rgba(0, 255, 102, 0.03);
}
.term-bar { display: flex; align-items: center; gap: 7px; padding: 10px 14px; border-bottom: 1px solid var(--line); background: #070d08; }
.term-bar .tl { width: 11px; height: 11px; border-radius: 50%; border: 1px solid var(--line-bright); }
.term-bar .tl:first-child { background: var(--red); border-color: var(--red); }
.term-bar .tl:nth-child(2) { background: var(--amber); border-color: var(--amber); }
.term-bar .tl:nth-child(3) { background: var(--green); border-color: var(--green); }
.term-title { margin-left: 8px; font-size: 12px; color: var(--dim); }
.term-log { margin: 0; padding: 18px 18px 6px; min-height: 178px; font-size: 13.5px; line-height: 1.8; color: var(--green-hot); white-space: pre-wrap; }
.term-log .dim { color: var(--dim); }
.term-log .amber { color: var(--amber); }
.countdown { border-top: 1px dashed var(--line-bright); margin: 12px 18px 18px; padding-top: 14px; }
.count-label { font-size: 12px; color: var(--muted); letter-spacing: 0.06em; margin-bottom: 10px; }
.count-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.count-grid div { border: 1px solid var(--line); background: #050a06; text-align: center; padding: 10px 4px; border-radius: 4px; }
.count-grid span { display: block; font-family: var(--font-d); font-size: 30px; font-weight: 700; color: var(--green); font-variant-numeric: tabular-nums; }
.count-grid em { font-style: normal; font-size: 11px; color: var(--dim); }

/* ---------- ticker ---------- */
.ticker { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: #050b06; overflow: hidden; white-space: nowrap; }
.ticker-track { display: inline-flex; padding: 10px 0; animation: tick 28s linear infinite; }
.ticker-track span { color: var(--green); font-size: 13px; letter-spacing: 0.08em; }
@keyframes tick { to { transform: translateX(-50%); } }

/* ---------- sections ---------- */
.block { max-width: var(--max); margin: 0 auto; padding: 64px 28px 8px; }
.prompt { color: var(--dim); font-size: 14px; margin-bottom: 18px; }
.prompt .p-num { display: inline-block; color: #031007; background: var(--green); font-weight: 700; font-size: 12px; padding: 2px 8px; border-radius: 3px; margin-right: 8px; }
.prompt.center { text-align: center; }
.block-lede { color: var(--muted); max-width: 62ch; font-size: 17px; }
.inline-link { text-underline-offset: 3px; }
.warn { border: 1px dashed var(--amber); color: var(--amber); padding: 12px 16px; border-radius: 4px; font-size: 14px; max-width: 62ch; }
.fine { color: var(--dim); font-size: 13px; }
.cols { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 40px; align-items: start; }
.col-main p { color: #b9d9c2; }
.col-main b { color: var(--ink); }
.checklist { list-style: none; margin: 22px 0 0; padding: 0; display: grid; gap: 12px; }
.checklist li { border: 1px solid var(--line); background: var(--panel); padding: 14px 16px; border-radius: 4px; font-size: 15px; color: #b9d9c2; }
.checklist b { color: var(--green-hot); }
.panel { border: 1px solid var(--line-bright); background: var(--panel); border-radius: 6px; padding: 22px; }
.panel-head { color: var(--green); font-size: 13px; border-bottom: 1px solid var(--line); padding-bottom: 10px; margin-bottom: 14px; }
.panel ul { list-style: none; margin: 0 0 12px; padding: 0; display: grid; gap: 8px; font-size: 15px; }
.panel .ok { color: var(--green); font-weight: 700; }
.panel .no { color: var(--red); font-weight: 700; }
.panel .mail { font-size: 17px; font-weight: 700; word-break: break-all; }
.contact-line { color: var(--dim); font-size: 13px; margin-bottom: 4px; }

/* phases */
.phases { list-style: none; margin: 34px 0 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); counter-reset: ph; }
.phases li { background: var(--bg); padding: 20px 18px; position: relative; }
.ph-tag { color: var(--green); font-size: 12px; letter-spacing: 0.05em; margin-bottom: 10px; }
.phases h3 { font-size: 21px; color: #eafff0; }

/* ship */
.ship-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 20px; margin-top: 26px; }
.req { border: 1px solid var(--line-bright); border-radius: 6px; padding: 22px; background: var(--panel); }
.req.opt { border-color: var(--line); }
.req ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.req li { display: flex; gap: 12px; font-size: 15px; color: #b9d9c2; }
.req .box { color: var(--green); font-weight: 700; flex-shrink: 0; }
.req b { color: var(--ink); }

/* judging */
.judge-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: 26px; }
.judge-grid article { background: var(--bg); padding: 22px 20px; }
.judge-grid article:hover { background: var(--panel); }
.j-num { color: var(--dim); font-size: 13px; margin-bottom: 12px; }
.judge-grid h3 { font-size: 20px; color: var(--green-hot); }
.judge-grid p:last-child { color: #a9c9b3; font-size: 14px; margin: 0; }

/* prizes */
.prize-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 20px; margin-top: 26px; align-items: start; }
.prize-banner { border: 1px solid var(--amber); border-radius: 6px; padding: 26px; background: rgba(255, 176, 0, 0.04); }
.blink { color: var(--amber); font-weight: 700; letter-spacing: 0.04em; animation: blink 1.4s steps(1) infinite; }
.prize-note { color: #b9d9c2; font-size: 15px; }
.prize-chips { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 10px; align-content: start; }
.prize-chips li { border: 1px solid var(--line-bright); color: var(--green-hot); border-radius: 3px; padding: 9px 14px; font-size: 14px; background: var(--panel); }

/* faq */
.faq { display: grid; gap: 10px; margin-top: 26px; }
.faq details { border: 1px solid var(--line); border-radius: 4px; background: var(--panel); padding: 0 20px; }
.faq details[open] { border-color: var(--line-bright); }
.faq summary { cursor: pointer; padding: 16px 0; font-weight: 700; color: var(--ink); font-size: 16px; list-style: none; display: flex; gap: 12px; align-items: baseline; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: "+"; color: var(--green); font-weight: 700; }
.faq details[open] summary::before { content: "–"; }
.faq details p { color: #a9c9b3; font-size: 15px; padding-bottom: 18px; }

/* final cta + footer */
.final-cta { text-align: center; padding: 96px 28px 110px; border-top: 1px solid var(--line); margin-top: 72px; background: radial-gradient(ellipse 60% 55% at 50% 60%, rgba(0, 255, 102, 0.08), transparent 70%); }
.final-cta h2 { font-size: clamp(44px, 7vw, 84px); color: #eafff0; }
.final-cta p { color: var(--muted); margin-bottom: 28px; }
footer { border-top: 1px solid var(--line); background: #030604; }
.foot-grid { max-width: var(--max); margin: 0 auto; padding: 30px 28px 40px; display: flex; gap: 18px; flex-wrap: wrap; align-items: baseline; justify-content: space-between; }
.foot-grid p { margin: 0; font-size: 13px; color: var(--dim); }
.foot-links a { color: var(--muted); text-decoration: none; }
.foot-links a:hover { color: var(--green); }

/* ---------- section rhythm + readability pass ---------- */
:root { --body: #c9e6d1; }
.block { padding: 104px 28px 44px; border-top: 1px solid var(--line); }
#brief { border-top: none; padding-top: 88px; }
.block h2 { margin-bottom: 22px; }
.block-lede { margin-bottom: 10px; }
.cols { gap: 60px; }
.ship-grid, .judge-grid, .prize-grid, .phases { margin-top: 44px; }
.ship-grid, .prize-grid { gap: 28px; }
.req, .panel { padding: 28px; }
.phases li, .judge-grid article { padding: 28px 26px; }
.checklist { gap: 16px; margin-top: 28px; }
.checklist li { padding: 18px 20px; }
.faq { margin-top: 36px; gap: 14px; }
/* readable body copy: brighter, roomier, theme chrome toned down */
.col-main p, .req li, .judge-grid p:last-child, .faq details p, .phases li p, .prize-note { color: var(--body); }
.req li, .judge-grid p:last-child, .faq details p, .phases li p { font-size: 16px; line-height: 1.75; }
.req .box {
  display: inline-flex; align-items: center; justify-content: center;
  width: 26px; height: 26px; flex-shrink: 0;
  border: 1px solid var(--green); border-radius: 50%;
  color: var(--green); font-size: 14px; font-weight: 700;
}
.faq summary { font-size: 17px; padding: 20px 0; }
.faq details { padding: 0 24px; }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; padding-top: 52px; }
  .cols, .ship-grid, .prize-grid { grid-template-columns: 1fr; }
  .phases, .judge-grid { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
  .menu-btn { display: block; }
  .mobile-menu { display: grid; gap: 2px; border-bottom: 1px solid var(--line-bright); background: #040806; padding: 8px 20px 16px; position: fixed; top: 59px; left: 0; right: 0; z-index: 19; box-shadow: 0 24px 48px rgba(0, 0, 0, 0.6); }
  .mobile-menu[hidden] { display: none; }
  .mobile-menu a { color: var(--ink); text-decoration: none; padding: 10px 4px; border-bottom: 1px solid var(--line); font-size: 15px; min-height: 44px; display: flex; align-items: center; }
}
@media (max-width: 600px) {
  body { font-size: 15px; }
  .hero-meta { grid-template-columns: 1fr; }
  .phases, .judge-grid { grid-template-columns: 1fr; }
  .count-grid span { font-size: 24px; }
  .btn { min-height: 44px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .ticker-track { animation: none; }
  .cursor, .blink, .sysline .dot { animation: none; }
  #rain { display: none; }
  .btn { transition: none; }
}