/* goowee site — clean-technical, built on Go's own palette (cyan #00ADD8). */

:root {
  --bg: #ffffff;
  --bg-soft: #f3f8fb;
  --ink: #0b1622;
  --muted: #556a77;
  --line: #dbe6ec;
  --accent: #00add8;       /* Go cyan */
  --accent-ink: #00728f;   /* cyan that passes contrast as text/links */
  --panel: #0b1622;        /* dark surface for code + live demos */
  --panel-ink: #e7eef3;
  --panel-muted: #8ba0ae;
  --panel-line: #22303c;

  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --maxw: 1080px;
  --radius: 10px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 3px; }

.app { display: flex; flex-direction: column; min-height: 100vh; }

/* ---- header ---- */
.site-header,
.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 16px 24px;
  width: 100%;
}
.nav {
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: saturate(1.4) blur(8px);
  z-index: 10;
  font-family: var(--mono);
  font-size: 14px;
}
.nav .brand {
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
  margin-right: auto;
  font-size: 16px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.nav .brand .logo { display: block; }
.nav a { color: var(--muted); }
.nav a:hover { color: var(--ink); text-decoration: none; }

/* ---- main / sections ---- */
main { flex: 1; }
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 72px 24px;
}
.section-soft { background: var(--bg-soft); border-block: 1px solid var(--line); }
.section-soft > .section-inner { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.eyebrow {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-ink);
  margin: 0 0 14px;
}

h1, h2, h3 { letter-spacing: -0.025em; line-height: 1.1; }
h1 { font-size: clamp(2.2rem, 5.5vw, 3.5rem); font-weight: 800; margin: 0 0 18px; }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 700; margin: 0 0 12px; }
h3 { font-size: 1.05rem; font-weight: 700; margin: 0 0 6px; }
.lead { font-size: 1.2rem; color: var(--muted); margin: 0 0 28px; max-width: 34ch; }

/* ---- hero ---- */
.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 84px 24px 72px;
}
.hero-copy .lead { max-width: 40ch; }

.cta-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.btn {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  padding: 11px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  color: var(--ink);
  transition: transform 0.08s ease, border-color 0.15s ease, background 0.15s ease;
}
.btn:hover { text-decoration: none; border-color: #b9ccd6; }
.btn:active { transform: translateY(1px); }
/* Solid fills use the darker cyan so white text passes contrast (~5.5:1);
   the bright --accent stays for the brand mark, borders, and the live dot. */
.btn-primary { background: var(--accent-ink); border-color: var(--accent-ink); color: #fff; }
.btn-primary:hover { background: #005e78; border-color: #005e78; }

/* ---- dark panels (code + live demo) ---- */
.panel {
  background: var(--panel);
  color: var(--panel-ink);
  border-radius: 14px;
  border: 1px solid var(--panel-line);
  overflow: hidden;
  box-shadow: 0 24px 60px -30px rgba(11, 22, 34, 0.5);
}
.panel-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--panel-line);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--panel-muted);
}
.panel-bar .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--panel-line); }
.panel-bar .live { margin-left: auto; color: var(--accent); }
.panel-bar .live::before { content: "● "; }
.panel-body { padding: 22px; }

pre, code { font-family: var(--mono); }
/* Dark background baked in so a standalone .code block (e.g. Getting Started)
   is legible on the white page, not just inside a .panel. */
.code { margin: 0; padding: 22px; overflow-x: auto; font-size: 13.5px; line-height: 1.65; color: var(--panel-ink); background: var(--panel); border-radius: 10px; }
.panel > .code { border-radius: 0; } /* inside a panel the panel provides the frame */
.code .k { color: #7fd8ec; }   /* keyword-ish cyan */
.code .s { color: #9ee6a6; }   /* string green */
.code .c { color: var(--panel-muted); } /* comment */

/* the live hero demo (a real goowee component) */
.demo { display: flex; flex-direction: column; gap: 14px; align-items: flex-start; }
.demo .count { font-family: var(--mono); font-size: 2.4rem; font-weight: 700; color: #fff; letter-spacing: -0.02em; }
.demo .row { display: flex; gap: 10px; }
.demo button {
  font-family: var(--mono);
  font-size: 14px;
  padding: 9px 16px;
  border-radius: 8px;
  border: 1px solid var(--panel-line);
  background: #14212e;
  color: var(--panel-ink);
  cursor: pointer;
}
.demo button:hover { border-color: var(--accent); }
.demo .greeting { color: var(--accent); font-family: var(--mono); font-size: 14px; }
.demo .hidden { color: var(--panel-muted); font-family: var(--mono); font-size: 14px; }

/* ---- features ---- */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 8px; }
.feature { padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.feature .tag { font-family: var(--mono); font-size: 12px; color: var(--accent-ink); }
.feature p { color: var(--muted); margin: 6px 0 0; font-size: 0.95rem; }

/* ---- tutorial list ---- */
.steps { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 12px; }
.steps li { border: 1px solid var(--line); border-radius: var(--radius); }
.steps a { display: flex; gap: 14px; align-items: baseline; padding: 16px 18px; color: var(--ink); }
.steps a:hover { text-decoration: none; background: var(--bg-soft); }
.steps .n { font-family: var(--mono); color: var(--accent-ink); font-size: 13px; min-width: 2.2em; }
.steps .d { color: var(--muted); font-size: 0.95rem; }

/* ---- feedback ---- */
.feedback form { display: grid; gap: 12px; max-width: 520px; margin-top: 20px; }
.feedback input, .feedback textarea {
  font-family: var(--sans);
  font-size: 15px;
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  width: 100%;
  color: var(--ink);
  background: #fff;
}
.feedback textarea { min-height: 120px; resize: vertical; }
.feedback label { font-family: var(--mono); font-size: 12.5px; color: var(--muted); }

/* ---- footer ---- */
.footer {
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
}
.footer-inner { max-width: var(--maxw); margin: 0 auto; padding: 32px 24px; display: flex; flex-wrap: wrap; gap: 18px 32px; align-items: center; }
.footer .install { background: var(--bg-soft); border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; color: var(--ink); }
.footer .sp { margin-left: auto; }

/* generic content pages (tutorial examples) — one consistent width everywhere */
.page { max-width: 820px; margin: 0 auto; padding: 48px 24px; }
.page h2 { margin-top: 0; }
.page h3 { margin: 32px 0 6px; }

/* ---- tutorial lessons ---- */
.lesson { max-width: 820px; }
.backlink { display: inline-block; margin-bottom: 18px; font-family: var(--mono); font-size: 13px; color: var(--accent-ink); }
.lesson h1 { font-size: clamp(1.8rem, 4vw, 2.4rem); }
.lesson > .lead { max-width: 60ch; }

.demo-card { border: 1px solid var(--line); border-radius: 14px; overflow: hidden; margin: 10px 0 28px; background: #fff; }
.demo-card-bar { display: flex; align-items: center; gap: 8px; padding: 10px 14px; background: var(--bg-soft); border-bottom: 1px solid var(--line); }
.demo-card-bar .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--line); }
.demo-card-tag { margin-left: auto; font-family: var(--mono); font-size: 12px; color: var(--accent-ink); }
.demo-card-tag::before { content: "\25cf "; }
.demo-card-body { padding: 22px; display: flex; flex-direction: column; gap: 14px; align-items: flex-start; }
.demo-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }

/* presentable interactive elements inside a demo */
.demo-card-body button { font-family: var(--mono); font-size: 14px; padding: 9px 16px; border-radius: 8px; border: 1px solid var(--line); background: #fff; color: var(--ink); cursor: pointer; }
.demo-card-body button:hover { border-color: var(--accent); color: var(--accent-ink); }
.demo-card-body input[type="text"], .demo-card-body input[type="email"] { font-family: var(--sans); font-size: 15px; padding: 9px 12px; border: 1px solid var(--line); border-radius: 8px; min-width: 220px; }
.demo-card-body form { display: flex; flex-direction: column; gap: 10px; align-items: flex-start; width: 100%; }
.demo-card-body label { font-size: 0.95rem; color: var(--muted); }
.demo-card-body ul { margin: 2px 0 0; padding-left: 18px; }
.demo-card-body li { padding: 2px 0; }
.demo-card-body .greeting { color: var(--accent-ink); font-weight: 600; }
.demo-card-body .hidden { color: var(--muted); }
.demo-card-body .preview { font-family: var(--mono); font-size: 14px; color: var(--ink); background: var(--bg-soft); border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; }
.demo-card-body a { color: var(--accent-ink); font-family: var(--mono); font-size: 14px; }

.notes { color: var(--muted); line-height: 1.7; }
.notes li { margin: 4px 0; }

/* AI-guidance copy box (dark, select-all on focus) */
.copybox { width: 100%; box-sizing: border-box; font-family: var(--mono); font-size: 12.5px; line-height: 1.55; padding: 16px; border: 1px solid var(--panel-line); border-radius: 10px; background: var(--panel); color: var(--panel-ink); resize: vertical; }

/* tutorial step navigation (prev / next) */
.tutorial-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

/* form submission list */
.submission-list { list-style: none; padding: 0; margin: 12px 0 0; display: flex; flex-direction: column; gap: 6px; }
.submission-list li {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 0.95rem;
}
.submission-list .sub-name { font-weight: 600; min-width: 6ch; }
.submission-list .sub-email { color: var(--muted); }
.submission-list .sub-agreed { margin-left: auto; font-size: 0.85rem; color: var(--accent-ink); font-family: var(--mono); }

@media (max-width: 820px) {
  .hero { grid-template-columns: 1fr; gap: 32px; padding-top: 48px; }
  .features { grid-template-columns: 1fr; }
  .nav { gap: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}