/* ============================================================
   BEGINNER'S GUIDE — standalone /guide page
   (public/guide.html)

   Only the standalone page loads this file. The same #guideBody
   markup is injected into the in-app Beginner's Guide modal
   (#guideContent in public/index.html), where desktop.css /
   mobile.css carry a few #guideContent rules for the accents
   (.guide-callout, .guide-example, code chips) so the content
   reads well in both places.

   Design tokens mirror desktop.css / mobile.css: dark navy
   (#020617), neon cyan accent (#7fd8ff), glass panels.
   ============================================================ */

:root {
  --bg: #020617;
  --card: #0a0e18;
  --accent: #7fd8ff;
  --muted: #b8c7d9;
  --glass: rgba(160, 200, 255, 0.06);
  --panel: rgba(10, 14, 24, 0.88);
  --panel-border: rgba(160, 200, 255, 0.25);
  --success: #6dffe7;
  --danger: #ff7aa8;
  font-family: Inter, system-ui, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 76px; /* keep section anchors clear of the sticky nav */
}

body {
  margin: 0;
  min-height: 100%;
  background-color: var(--bg);
  background-image: url('/images/mcf3.png');
  background-repeat: no-repeat;
  background-position: center center;
  background-size: cover;
  background-attachment: fixed;
  color: #e9f6ff;
  line-height: 1.6;
}

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

/* ---------- hero ---------- */

.guide-hero {
  max-width: 880px;
  margin: 0 auto;
  padding: 48px 20px 8px;
  text-align: center;
}

.guide-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 13px;
}

.guide-brand img {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  border: 1px solid var(--panel-border);
}

.guide-kicker {
  margin: 26px 0 6px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 12px;
  font-weight: 700;
}

.guide-hero h1 {
  margin: 0 0 10px;
  font-size: clamp(34px, 6vw, 54px);
  line-height: 1.08;
  text-shadow: 0 0 24px rgba(127, 216, 255, 0.35);
}

.guide-sub {
  margin: 0 auto;
  max-width: 620px;
  color: var(--muted);
  font-size: 17px;
}

.guide-facts {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 22px 0 26px;
  padding: 0;
}

.guide-facts li {
  background: var(--glass);
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 13px;
  color: #cfe9ff;
}

.guide-cta {
  display: inline-block;
  background: linear-gradient(135deg, #38bdf8, #7fd8ff);
  color: #041018;
  font-weight: 700;
  text-decoration: none;
  border-radius: 10px;
  padding: 12px 28px;
  box-shadow: 0 0 18px rgba(127, 216, 255, 0.45);
}

.guide-cta:hover { filter: brightness(1.08); }

/* ---------- sticky section nav ---------- */

.guide-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  padding: 10px 12px;
  margin-top: 18px;
  background: rgba(2, 6, 23, 0.9);
  backdrop-filter: blur(8px);
  border-top: 1px solid rgba(160, 200, 255, 0.15);
  border-bottom: 1px solid rgba(160, 200, 255, 0.15);
}

.guide-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid transparent;
  white-space: nowrap;
}

.guide-nav a:hover {
  color: var(--accent);
  border-color: var(--panel-border);
  background: var(--glass);
}

/* ---------- guide body ---------- */

.guide-main {
  max-width: 760px;
  margin: 0 auto;
  padding: 28px 20px 40px;
  background: var(--panel);
  border-left: 1px solid rgba(160, 200, 255, 0.12);
  border-right: 1px solid rgba(160, 200, 255, 0.12);
}

.guide-intro {
  font-size: 17px;
  color: #d9edff;
  border-left: 3px solid var(--accent);
  padding-left: 14px;
}

.guide-main section {
  margin-top: 40px;
  scroll-margin-top: 80px;
}

.guide-main h2 {
  font-size: 24px;
  margin: 0 0 14px;
  color: #eafaff;
  border-bottom: 1px solid rgba(160, 200, 255, 0.18);
  padding-bottom: 8px;
}

.guide-main h3 {
  font-size: 17px;
  margin: 26px 0 8px;
  color: var(--accent);
}

.guide-main p,
.guide-main li {
  color: #cfe3f5;
  font-size: 15.5px;
}

.guide-main strong { color: #eefaff; }

/* Numbered and bulleted runs (the setup steps, the match styles, the eight
   rules) are long enough to need air between items. The quick-start
   checklist brings its own spacing, so it stays out of it. */
.guide-main ol > li,
.guide-main ul > li {
  margin-bottom: 6px;
}

.guide-main .guide-checklist li {
  margin-bottom: 0;
}

.guide-callout {
  background: var(--glass);
  border: 1px solid var(--panel-border);
  border-left: 3px solid var(--success);
  border-radius: 8px;
  padding: 12px 16px !important;
  margin: 18px 0;
}

/* ---------- example exchange ---------- */

.guide-example {
  background: rgba(2, 6, 23, 0.65);
  border: 1px solid rgba(160, 200, 255, 0.18);
  border-radius: 10px;
  padding: 14px 18px;
  margin: 16px 0;
}

.guide-example p {
  margin: 8px 0;
  font-size: 15px !important;
}

.guide-example p:first-child { margin-top: 0; }
.guide-example p:last-child { margin-bottom: 0; }

.guide-example .guide-bad { color: #ffd3e1; }
.guide-example .guide-good { color: #d9fff6; }

.guide-example code,
.guide-main code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13.5px;
  background: rgba(127, 216, 255, 0.12);
  border: 1px solid rgba(127, 216, 255, 0.3);
  border-radius: 6px;
  padding: 1px 7px;
  color: #bfefff;
  white-space: nowrap;
}

/* ---------- glossary ---------- */

.guide-glossary {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px 22px;
  margin: 0;
}

.guide-glossary dt {
  color: var(--accent);
  font-weight: 700;
  margin-top: 12px;
}

.guide-glossary dd {
  margin: 0;
  color: #cfe3f5;
  font-size: 15px;
}

/* ---------- checklist ---------- */

.guide-checklist {
  counter-reset: guide-step;
  list-style: none;
  padding: 0;
  margin: 0;
}

.guide-checklist li {
  counter-increment: guide-step;
  position: relative;
  padding: 10px 0 10px 52px;
  border-bottom: 1px solid rgba(160, 200, 255, 0.1);
}

.guide-checklist li::before {
  content: counter(guide-step);
  position: absolute;
  left: 0;
  top: 8px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(127, 216, 255, 0.14);
  border: 1px solid rgba(127, 216, 255, 0.4);
  color: var(--accent);
  font-weight: 700;
}

/* ---------- footer ---------- */

.guide-footer {
  max-width: 760px;
  margin: 0 auto;
  padding: 30px 20px 60px;
  text-align: center;
}

.guide-footer .small { color: var(--muted); font-size: 13px; }

/* ---------- wide glossary on large screens ---------- */

@media (min-width: 720px) {
  .guide-glossary { grid-template-columns: 1fr 1fr; }
}

/* ---------- phones ---------- */

@media (max-width: 640px) {
  .guide-hero { padding-top: 32px; }
  .guide-nav { justify-content: flex-start; overflow-x: auto; flex-wrap: nowrap; }
  .guide-main { border: none; padding: 20px 16px 32px; }
}