/* My Nerd 2 Go - self-contained, no external fonts or CDNs so the page renders
   instantly and has nothing to block. */

:root {
  --bg: #ffffff;
  --bg-alt: #f4f6fa;
  --fg: #16202e;
  --fg-muted: #55627a;
  --accent: #1f6feb;
  --accent-fg: #ffffff;
  --border: #dde3ed;
  --radius: 12px;
  --wrap: 1080px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f141c;
    --bg-alt: #161d28;
    --fg: #e8edf5;
    --fg-muted: #9aa7bd;
    --accent: #4d90ff;
    --border: #263041;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
.wrap.narrow { max-width: 720px; }

h1, h2, h3 { line-height: 1.25; margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 5vw, 3.1rem); letter-spacing: -.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); letter-spacing: -.01em; }
h3 { font-size: 1.12rem; }
p { margin: 0 0 1rem; }

a { color: var(--accent); }

.skip {
  position: absolute; left: -9999px;
  background: var(--accent); color: var(--accent-fg);
  padding: 10px 16px; border-radius: 0 0 var(--radius) 0; z-index: 100;
}
.skip:focus { left: 0; top: 0; }

/* ── Header ───────────────────────────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex; align-items: center; gap: 20px;
  min-height: 64px; flex-wrap: wrap;
}
.brand {
  font-weight: 700; font-size: 1.15rem; letter-spacing: -.01em;
  color: var(--fg); text-decoration: none; margin-right: auto;
}
.brand-accent { color: var(--accent); }
.site-header nav { display: flex; gap: 22px; flex-wrap: wrap; }
.site-header nav a {
  color: var(--fg-muted); text-decoration: none; font-size: .94rem;
}
.site-header nav a:hover { color: var(--fg); }

@media (max-width: 720px) {
  .site-header nav { order: 3; width: 100%; padding-bottom: 12px; gap: 16px; }
}

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.btn {
  display: inline-block; background: var(--accent); color: var(--accent-fg);
  padding: 13px 26px; border-radius: var(--radius);
  font-weight: 600; text-decoration: none; border: 1px solid var(--accent);
}
.btn:hover { filter: brightness(1.08); }
.btn-sm { padding: 8px 16px; font-size: .9rem; }
.btn-ghost {
  background: transparent; color: var(--fg); border-color: var(--border);
}

/* ── Hero ─────────────────────────────────────────────────────────────────── */
.hero {
  padding: clamp(60px, 10vw, 110px) 0;
  background: linear-gradient(160deg, var(--bg-alt), var(--bg));
  border-bottom: 1px solid var(--border);
}
.eyebrow {
  text-transform: uppercase; letter-spacing: .12em; font-size: .82rem;
  font-weight: 600; color: var(--accent); margin: 0 0 .6rem;
}
.lede { font-size: 1.14rem; color: var(--fg-muted); max-width: 62ch; }
.cta-row { display: flex; gap: 14px; flex-wrap: wrap; margin: 28px 0 0; }
.hero-note { color: var(--fg-muted); font-size: .93rem; margin: 0; }

/* ── Sections ─────────────────────────────────────────────────────────────── */
.section { padding: clamp(48px, 7vw, 84px) 0; }
.section-alt { background: var(--bg-alt); }

.grid {
  display: grid; gap: 18px; margin-top: 28px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.card {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 24px;
}
.card p:last-child { margin-bottom: 0; }
.card.price .amount {
  font-size: 1.7rem; font-weight: 700; color: var(--accent); margin: 0 0 .4rem;
}

/* ── Steps ────────────────────────────────────────────────────────────────── */
.steps { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 22px; }
.steps li { display: flex; gap: 18px; align-items: flex-start; }
.step-n {
  flex: 0 0 38px; height: 38px; border-radius: 50%;
  background: var(--accent); color: var(--accent-fg);
  display: grid; place-items: center; font-weight: 700;
}
.steps h3 { margin-bottom: .25em; }
.steps p { margin: 0; color: var(--fg-muted); }

/* ── Link row ─────────────────────────────────────────────────────────────── */
.links {
  list-style: none; padding: 0; margin: 24px 0 0;
  display: flex; flex-wrap: wrap; gap: 12px;
}
.links a {
  display: inline-block; padding: 10px 20px;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg); text-decoration: none; font-weight: 500;
}
.links a:hover { border-color: var(--accent); }

/* ── Contact ──────────────────────────────────────────────────────────────── */
.contact-list { list-style: none; padding: 0; margin: 24px 0 0; }
.contact-list li {
  display: flex; gap: 20px; padding: 14px 0;
  border-bottom: 1px solid var(--border);
}
.contact-list li span:first-child {
  flex: 0 0 90px; color: var(--fg-muted); font-size: .9rem;
  text-transform: uppercase; letter-spacing: .05em;
}

/* ── Utility ──────────────────────────────────────────────────────────────── */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.meta {
  color: var(--fg-muted); font-size: .85rem; margin: -.25rem 0 .6rem;
  text-transform: uppercase; letter-spacing: .04em;
}
.plain { list-style: none; padding: 0; margin: 0 0 1.5rem; }
.plain li { padding: 8px 0; border-bottom: 1px solid var(--border); }
.plain.inline { display: flex; flex-wrap: wrap; gap: 10px; }
.plain.inline li {
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 6px 14px; font-size: .92rem;
}

.quote {
  margin: 24px 0 0; padding: 24px 28px;
  border-left: 3px solid var(--accent); background: var(--bg-alt);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.quote p { font-size: 1.08rem; font-style: italic; }
.quote cite {
  display: block; font-style: normal; font-size: .88rem; color: var(--fg-muted);
}

/* ── Link directory ───────────────────────────────────────────────────────── */
.search-wrap { margin-top: 28px; max-width: 520px; }
.search-wrap input {
  width: 100%; padding: 13px 18px; font-size: 1rem;
  color: var(--fg); background: var(--bg);
  border: 1px solid var(--border); border-radius: var(--radius);
}
.search-wrap input:focus {
  outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent);
}
.search-wrap .hero-note { margin-top: 10px; }

.toc {
  display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 40px;
  padding-bottom: 28px; border-bottom: 1px solid var(--border);
}
.toc a {
  font-size: .85rem; padding: 6px 13px; text-decoration: none;
  border: 1px solid var(--border); border-radius: 999px; color: var(--fg-muted);
}
.toc a:hover { border-color: var(--accent); color: var(--accent); }

.dir { margin-bottom: 44px; scroll-margin-top: 80px; }
.dir h2 { display: flex; align-items: baseline; gap: 12px; }
.tally {
  font-size: .75rem; font-weight: 600; color: var(--fg-muted);
  border: 1px solid var(--border); border-radius: 999px; padding: 2px 9px;
}
.dir-list {
  list-style: none; padding: 0; margin: 0;
  display: grid; gap: 8px;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}
.dir-list a {
  display: flex; flex-direction: column; gap: 2px;
  padding: 11px 15px; text-decoration: none;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg); height: 100%;
}
.dir-list a:hover { border-color: var(--accent); }
.dir-list .t { color: var(--fg); font-size: .94rem; line-height: 1.4; }
.dir-list .d { color: var(--fg-muted); font-size: .78rem; word-break: break-all; }

/* ── Footer ───────────────────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border); padding: 32px 0;
  color: var(--fg-muted); font-size: .9rem;
}
.site-footer p { margin: 0; }