/* Landing page. Same palette as the game's default Hackerman theme. */
:root {
  --bg: #0b0c16;
  --bg2: #10121f;
  --bg3: #151828;
  --line: #22263b;
  --line2: #2e3350;
  --text: #ddf7ff;
  --muted: #8a90b4;
  --dim: #5d628a;
  --accent: #82fb9c;
  --accent2: #7cf8f7;
  --on-accent: #06140b;
  --mono: 'JetBrains Mono', 'JetBrainsMono Nerd Font', 'Fira Code', ui-monospace, 'Cascadia Code', monospace;
  --sans: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --r: 14px;
  color-scheme: dark;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 var(--sans); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
code { font: .9em var(--mono); color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, transparent); padding: 1px 6px; border-radius: 5px; }
h1, h2, h3 { margin: 0; letter-spacing: -.03em; line-height: 1.1; }
h2 { font-size: clamp(30px, 4vw, 44px); }
.wrap { width: min(1160px, 100% - 48px); margin-inline: auto; }
.kicker { margin: 0 0 14px; font: 600 12px var(--mono); letter-spacing: .26em; text-transform: uppercase; color: var(--accent); }
.sub { color: var(--muted); max-width: 640px; margin: 14px 0 0; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 48px; padding: 0 24px; border-radius: 10px; font: 600 15px var(--sans); text-decoration: none; cursor: pointer; border: 1px solid var(--line2); background: color-mix(in srgb, var(--bg) 60%, transparent); color: var(--text); transition: transform .15s, background .15s, border-color .15s, box-shadow .15s; }
.btn:hover { transform: translateY(-1px); border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); box-shadow: 0 10px 34px color-mix(in srgb, var(--accent) 28%, transparent); }
.btn.primary:hover { box-shadow: 0 14px 44px color-mix(in srgb, var(--accent) 42%, transparent); }
.btn.ghost { backdrop-filter: blur(8px); }
.btn.small { height: 36px; padding: 0 16px; font-size: 14px; }
.btn.block { width: 100%; }
.btn:focus-visible, a:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* nav */
.nav { position: sticky; top: 0; z-index: 50; display: flex; align-items: center; gap: 28px; height: 64px; padding: 0 max(24px, calc((100% - 1160px) / 2)); background: color-mix(in srgb, var(--bg) 72%, transparent); backdrop-filter: blur(14px); border-bottom: 1px solid transparent; transition: border-color .2s; }
.nav.scrolled { border-bottom-color: var(--line); }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; text-decoration: none; letter-spacing: -.01em; }
.brand svg { width: 28px; height: 28px; fill: none; stroke: var(--accent); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.links { display: flex; gap: 24px; margin-left: auto; }
.links a { color: var(--muted); text-decoration: none; font-size: 14px; }
.links a:hover { color: var(--text); }

/* hero */
.hero { position: relative; padding: 96px 0 0; overflow: hidden; }
.hero-bg { position: absolute; inset: -64px 0 0; background: linear-gradient(180deg, color-mix(in srgb, var(--bg) 35%, transparent) 0%, color-mix(in srgb, var(--bg) 70%, transparent) 45%, var(--bg) 82%), url('../assets/themes/hackerman.jpg') center top / cover no-repeat; z-index: -1; }
.hero-inner { text-align: center; }
.hero h1 { font-size: clamp(52px, 8.5vw, 104px); letter-spacing: -.05em; line-height: .95; background: linear-gradient(95deg, #fff 15%, var(--accent) 60%, var(--accent2)); -webkit-background-clip: text; background-clip: text; color: transparent; filter: drop-shadow(0 6px 30px color-mix(in srgb, var(--accent) 22%, transparent)); }
.hero h1 span { display: block; margin-top: 18px; font: 600 clamp(13px, 1.6vw, 17px) var(--mono); letter-spacing: .44em; text-transform: uppercase; -webkit-text-fill-color: var(--text); color: var(--text); }
.lede { max-width: 720px; margin: 28px auto 0; font-size: clamp(16px, 1.6vw, 19px); color: color-mix(in srgb, var(--text) 82%, var(--bg)); }
.cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 34px; }
.fine { margin: 14px 0 0; font-size: 13px; color: var(--muted); }
.hero-shot { margin-top: 64px; margin-bottom: 0; position: relative; }
.hero-shot::before { content: ''; position: absolute; inset: 8% 6% -4%; background: radial-gradient(closest-side, color-mix(in srgb, var(--accent) 30%, transparent), transparent); filter: blur(40px); z-index: -1; }
.hero-shot img, .feature img { border-radius: var(--r); border: 1px solid var(--line2); box-shadow: 0 30px 90px #000a, 0 0 0 1px #0006; }

/* facts */
.facts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 80px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.facts div { background: var(--bg2); padding: 24px 22px; }
.facts b { display: block; font: 700 34px var(--mono); color: var(--accent); letter-spacing: -.03em; }
.facts span { color: var(--muted); font-size: 14px; }

/* features */
.features { display: flex; flex-direction: column; gap: 120px; padding: 130px 0; }
.feature { display: grid; grid-template-columns: 5fr 7fr; gap: 56px; align-items: center; }
.feature.flip .copy { order: 2; }
.feature h2 { font-size: clamp(28px, 3.4vw, 40px); }
.feature p { color: color-mix(in srgb, var(--text) 80%, var(--bg)); }
.feature ul, .plan ul { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 10px; }
.feature li, .plan li { position: relative; padding-left: 26px; color: var(--muted); font-size: 15px; }
.feature li::before, .plan li::before { content: ''; position: absolute; left: 2px; top: .5em; width: 12px; height: 7px; border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(-45deg); }

/* curriculum */
.curriculum { padding: 110px 0; background: linear-gradient(180deg, var(--bg), var(--bg2) 18%, var(--bg2) 82%, var(--bg)); }
.levels { list-style: none; padding: 0; margin: 44px 0 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; counter-reset: lvl; }
.levels li { position: relative; padding: 22px 20px 20px; border-radius: var(--r); border: 1px solid var(--line2); background: var(--bg3); counter-increment: lvl; display: flex; flex-direction: column; }
.levels li::after { content: '0' counter(lvl); position: absolute; top: 18px; right: 18px; font: 700 13px var(--mono); color: var(--dim); }
.levels h3 { font-size: 18px; margin-top: 14px; }
.levels p { color: var(--muted); font-size: 14px; margin: 10px 0 16px; flex: 1; }
.levels small { font: 12px var(--mono); color: var(--dim); }
.levels li.free { border-color: color-mix(in srgb, var(--accent) 40%, var(--line2)); }
.levels li.soon { border-style: dashed; background: transparent; }
.tag { align-self: flex-start; font: 600 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; padding: 3px 9px; border-radius: 99px; color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, transparent); border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent); }
.tag.paid { color: var(--accent2); background: color-mix(in srgb, var(--accent2) 10%, transparent); border-color: color-mix(in srgb, var(--accent2) 32%, transparent); }
.tag.soon { color: var(--muted); background: none; border-color: var(--line2); }

/* who */
.who { padding: 110px 0 40px; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 36px; }
.card { padding: 26px; border-radius: var(--r); background: var(--bg2); border: 1px solid var(--line); }
.card h3 { font-size: 19px; }
.card p { color: var(--muted); font-size: 15px; margin: 10px 0 0; }

/* pricing */
.pricing { padding: 110px 0; }
.pricing h2 { text-align: center; }
.pricing .kicker { text-align: center; }
.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; max-width: 860px; margin: 44px auto 0; align-items: start; }
.plan { position: relative; padding: 30px; border-radius: 18px; background: var(--bg2); border: 1px solid var(--line2); display: flex; flex-direction: column; }
.plan h3 { font-size: 20px; }
.price { margin: 14px 0 6px; display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.price b { font: 700 48px var(--sans); letter-spacing: -.04em; }
.price span { color: var(--muted); font-size: 14px; }
.plan ul { margin: 14px 0 28px; }
.plan li { color: color-mix(in srgb, var(--text) 82%, var(--bg)); }
.plan.founders { border-color: var(--accent); background: radial-gradient(120% 80% at 50% 0%, color-mix(in srgb, var(--accent) 12%, var(--bg2)), var(--bg2) 60%); box-shadow: 0 30px 80px color-mix(in srgb, var(--accent) 12%, transparent); }
.ribbon { position: absolute; top: -12px; left: 30px; font: 700 11px var(--mono); letter-spacing: .1em; text-transform: uppercase; padding: 4px 10px; border-radius: 99px; background: var(--accent); color: var(--on-accent); }
.refund { margin: 10px 0 0; font-size: 13px; color: var(--muted); text-align: center; }
.checkout-note { margin: 12px 0 0; font-size: 13px; color: var(--muted); text-align: center; }

/* faq */
.faq { max-width: 820px; padding: 40px 0 110px; }
.faq h2 { margin-bottom: 26px; }
details { border-bottom: 1px solid var(--line); }
summary { list-style: none; cursor: pointer; padding: 20px 36px 20px 0; position: relative; font-weight: 600; font-size: 17px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; position: absolute; right: 4px; top: 16px; font: 400 24px var(--mono); color: var(--accent); transition: transform .2s; }
details[open] summary::after { transform: rotate(45deg); }
details p { margin: 0 0 22px; color: var(--muted); }

/* final */
.final { padding: 120px 0; text-align: center; background: linear-gradient(180deg, var(--bg), color-mix(in srgb, var(--bg) 55%, transparent)), url('../assets/themes/hackerman.jpg') center bottom / cover no-repeat; }
.final p { color: var(--muted); margin: 14px 0 30px; }
.final .kicker { color: var(--accent); margin: 0 0 14px; }

/* legal pages */
.legal { max-width: 760px; padding: 72px 0 110px; }
.legal h1 { font-size: clamp(36px, 5vw, 52px); }
.legal .kicker { color: var(--accent); }
.legal .updated { color: var(--dim); font: 13px var(--mono); margin: 14px 0 36px; }
.legal h2 { font-size: 21px; letter-spacing: -.01em; margin: 40px 0 12px; }
.legal p, .legal li { color: color-mix(in srgb, var(--text) 82%, var(--bg)); }
.legal ul { padding-left: 22px; display: grid; gap: 8px; }
.legal a, .refund a { color: var(--accent); text-underline-offset: 3px; }
.legal b { color: var(--text); }
.legal .callout { font-size: 20px; font-weight: 600; color: var(--accent); padding: 18px 22px; border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--line2)); border-radius: var(--r); background: color-mix(in srgb, var(--accent) 7%, var(--bg2)); }
.nav .links a[aria-current] { color: var(--text); }

/* account and welcome pages */
.account h1 { margin-bottom: 22px; }
.account .muted { color: var(--muted); }
.account .small { font-size: 13px; }
.account section { margin-top: 8px; }
.cta.left { justify-content: flex-start; margin-top: 24px; }
.signin { margin-top: 26px; }
.signin label { display: block; font: 600 12px var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.signin .row { display: flex; gap: 10px; flex-wrap: wrap; }
.signin input { flex: 1 1 260px; height: 48px; padding: 0 16px; border-radius: 10px; border: 1px solid var(--line2); background: var(--bg2); color: var(--text); font: 15px var(--sans); }
.signin input:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
.acct-card { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin-top: 18px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.acct-card div { background: var(--bg2); padding: 18px 20px; display: grid; gap: 4px; }
.acct-card span { font-size: 13px; }
.acct-card b { color: var(--text); overflow-wrap: anywhere; }
.acct-card .edition.owned { color: var(--accent); }

.foot { border-top: 1px solid var(--line); padding: 32px 0 44px; font-size: 13px; color: var(--muted); }
.foot .wrap { display: flex; flex-wrap: wrap; gap: 12px 28px; align-items: center; }
.foot nav { display: flex; gap: 20px; margin-left: auto; }
.foot nav a { text-decoration: none; }
.foot nav a:hover { color: var(--text); }
.foot p { flex-basis: 100%; margin: 6px 0 0; color: var(--dim); font-size: 12px; }

@media (max-width: 960px) {
  .links { display: none; }
  .nav .btn { margin-left: auto; }
  .feature, .feature.flip { grid-template-columns: 1fr; gap: 28px; }
  .feature.flip .copy { order: 0; }
  .levels { grid-template-columns: 1fr 1fr; }
  .facts { grid-template-columns: 1fr 1fr; }
  .cards, .plans { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .acct-card { grid-template-columns: 1fr; }
  .hero { padding-top: 64px; }
  .kicker { letter-spacing: .16em; }
  .hero h1 span { letter-spacing: .3em; }
  .levels, .facts { grid-template-columns: 1fr; }
  .features { padding: 90px 0; gap: 90px; }
  .btn { width: 100%; }
  .nav .btn { width: auto; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}