/* ===========================================================
   APM guides , shared styles for the /guides/ section.
   Mirrors the landing-page design tokens (Montserrat, teal/orange).
   Used by the guides hub (index.html) and every article page.
   Asset paths are ../assets/ because guides/ is a subfolder.
   =========================================================== */

:root {
  --teal: #2AA198;
  --teal-dark: #1f857d;
  --teal-soft: #e7f4f2;
  --orange: #F4A259;
  --orange-dark: #e08c3f;
  --ink: #222222;
  --ink-soft: #4a4a4a;
  --ink-faint: #6b6b6b;
  --bg: #FBFBF8;
  --bg-alt: #f3f3ee;
  --white: #ffffff;
  --line: #e6e6df;

  --space-1: 4px;  --space-2: 8px;  --space-3: 16px;
  --space-4: 24px; --space-5: 32px; --space-6: 48px;
  --space-7: 64px; --space-8: 96px;

  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 8px rgba(34,34,34,.06);
  --shadow: 0 12px 34px rgba(34,34,34,.10);
  --shadow-lg: 0 26px 60px rgba(34,34,34,.16);

  --maxw: 1120px;
  --maxw-read: 760px;
  --font: 'Montserrat', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
a { color: inherit; }
img { max-width: 100%; display: block; }
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.wrap-read { width: 100%; max-width: var(--maxw-read); margin: 0 auto; padding: 0 24px; }

h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; margin: 0; font-weight: 800; }
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.3rem); }
h3 { font-size: 1.25rem; font-weight: 700; }
p { margin: 0; }

/* ===================== BUTTONS ===================== */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 1rem; text-decoration: none;
  padding: 14px 24px; border-radius: 999px; border: none; cursor: pointer;
  background: var(--teal); color: #fff;
  box-shadow: var(--shadow-sm);
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.btn:hover { transform: translateY(-2px); background: var(--teal-dark); box-shadow: var(--shadow); }
.btn.ghost { background: transparent; color: var(--teal-dark); box-shadow: none; border: 1.5px solid var(--teal); }
.btn.ghost:hover { background: var(--teal-soft); }
.btn svg { width: 20px; height: 20px; }

/* ===================== NAV ===================== */
header.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(251,251,248,.82);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 24px; max-width: var(--maxw); margin: 0 auto; }
.nav-logo img { height: 38px; width: auto; }
.nav-links { display: flex; align-items: center; gap: 22px; }
.nav-links a.txt { text-decoration: none; font-weight: 600; font-size: .95rem; color: var(--ink-soft); }
.nav-links a.txt:hover { color: var(--teal-dark); }
.nav-cta { display: none; }
@media (min-width: 720px) { .nav-cta { display: inline-flex; } }

/* ===================== GUIDES HUB ===================== */
.hub { text-align: center; padding: var(--space-8) 0 var(--space-6); position: relative; overflow: hidden; }
.hub::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(620px 420px at 78% 8%, rgba(244,162,89,.16), transparent 60%),
    radial-gradient(720px 520px at 12% 92%, rgba(42,161,152,.14), transparent 60%);
}
.hub .wrap { position: relative; z-index: 1; }
.eyebrow {
  display: inline-block; font-size: .82rem; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: var(--teal); background: var(--teal-soft);
  padding: 7px 14px; border-radius: 999px; margin-bottom: var(--space-4);
}
.hub h1 { max-width: 18ch; margin: 0 auto var(--space-3); }
.hub .lead { max-width: 52ch; margin: 0 auto; color: var(--ink-soft); font-size: clamp(1.05rem, 2vw, 1.25rem); }

.guide-grid { display: grid; gap: var(--space-4); grid-template-columns: 1fr; padding-bottom: var(--space-8); }
@media (min-width: 720px){ .guide-grid { grid-template-columns: repeat(2, 1fr); } }
.guide-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: var(--space-5); box-shadow: var(--shadow-sm); text-decoration: none; color: inherit;
  display: flex; flex-direction: column; gap: 10px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.guide-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--teal); }
.guide-card .tag {
  align-self: flex-start; font-size: .72rem; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; color: var(--teal-dark); background: var(--teal-soft);
  padding: 4px 10px; border-radius: 999px;
}
.guide-card h3 { font-size: 1.2rem; }
.guide-card p { color: var(--ink-soft); font-size: .96rem; }
.guide-card .more { margin-top: auto; font-weight: 700; color: var(--teal-dark); font-size: .92rem; }
.guide-card.soon { opacity: .72; pointer-events: none; }
.guide-card.soon .tag { color: var(--orange-dark); background: #fdf0e1; }

/* ===================== ARTICLE ===================== */
.article-head { padding: var(--space-7) 0 var(--space-5); background: var(--bg-alt); border-bottom: 1px solid var(--line); }
.crumbs { font-size: .9rem; color: var(--ink-faint); margin-bottom: var(--space-4); }
.crumbs a { color: var(--ink-soft); text-decoration: none; }
.crumbs a:hover { color: var(--teal-dark); }
.article-head h1 { max-width: 22ch; margin-bottom: var(--space-3); }
.article-meta { color: var(--ink-faint); font-size: .92rem; display: flex; gap: 16px; flex-wrap: wrap; }

.article { padding: var(--space-6) 0 var(--space-8); }
.article p, .article ul, .article ol { font-size: 1.06rem; color: var(--ink-soft); margin: 0 0 var(--space-4); }
.article h2 { margin: var(--space-7) 0 var(--space-3); }
.article h3 { margin: var(--space-5) 0 var(--space-2); }
.article ul, .article ol { padding-left: 1.3em; display: grid; gap: 8px; }
.article li { padding-left: 4px; }
.article strong { color: var(--ink); }
.article a { color: var(--teal-dark); text-decoration: underline; text-underline-offset: 2px; }
.article blockquote {
  margin: var(--space-5) 0; padding: var(--space-4) var(--space-5);
  border-left: 4px solid var(--teal); background: var(--teal-soft);
  border-radius: 0 var(--radius) var(--radius) 0; color: var(--ink); font-style: italic;
}
.article table { width: 100%; border-collapse: collapse; margin: var(--space-4) 0; font-size: .98rem; }
.article th, .article td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.article th { font-weight: 700; color: var(--ink); }
.callout {
  margin: var(--space-5) 0; padding: var(--space-4) var(--space-5);
  border: 1px dashed var(--orange); background: #fdf6ee; border-radius: var(--radius);
}
.callout strong { color: var(--orange-dark); }

/* in-article CTA box */
.cta-box {
  margin: var(--space-7) 0 0; text-align: center;
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-dark) 100%);
  border-radius: 28px; padding: clamp(32px, 5vw, 56px) 28px; color: #fff;
  box-shadow: var(--shadow-lg); position: relative; overflow: hidden;
}
.cta-box::after { content:""; position:absolute; inset:0; background: radial-gradient(420px 320px at 85% 15%, rgba(244,162,89,.32), transparent 60%); }
.cta-box > * { position: relative; z-index: 1; }
.cta-box h2 { color: #fff; margin-bottom: var(--space-3); }
.cta-box p { color: rgba(255,255,255,.92); max-width: 46ch; margin: 0 auto var(--space-5); }
.cta-box .btn { background: #fff; color: var(--teal-dark); }
.cta-box .btn:hover { background: var(--orange); color: #2a1c08; }

/* ===================== FOOTER ===================== */
footer { padding: var(--space-7) 0 var(--space-6); border-top: 1px solid var(--line); }
.foot { display: flex; flex-direction: column; gap: var(--space-4); align-items: center; text-align: center; }
.foot-logo img { height: 34px; width: auto; }
.foot-tag { font-weight: 700; color: var(--teal-dark); letter-spacing: .01em; }
.foot-meta { color: var(--ink-faint); font-size: .92rem; display: flex; gap: 8px 18px; flex-wrap: wrap; justify-content: center; }
.foot-meta a { color: var(--ink-soft); text-decoration: none; }
.foot-meta a:hover { color: var(--teal-dark); }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}
.skip { position: absolute; left: -999px; top: 0; background: var(--ink); color: #fff; padding: 10px 16px; z-index: 100; border-radius: 0 0 8px 0; }
.skip:focus { left: 0; }