/* ============================================================
   ISAAC COACHING — SHARED SITE STYLESHEET
   Used by all SEO landing pages. Mirrors the home-page brand system.
   Brand     #F0A040 amber  · signal
   Off-white #F5F5F5 text
   Parchment #D4C5A0 data
   Red       #E24B4A warning
   Type      MuseoModerno (display) · Liberation Mono (chrome)
   ============================================================ */

:root {
  --bg:        #0B0B0B;
  --amber:     #F0A040;
  --white:     #F5F5F5;
  --parchment: #D4C5A0;
  --red:       #E24B4A;

  --grey-body:    #B5B5B5;
  --grey-label:   #888888;
  --grey-muted:   #666666;
  --grey-divider: #3A3A3A;
  --grey-rule:    #262626;

  --surface-border: #1F1F1F;
  --surface-card:   #161616;
  --surface-amber:  #1F1410;

  --display: 'MuseoModerno', system-ui, -apple-system, sans-serif;
  --mono: 'Liberation Mono', ui-monospace, 'SFMono-Regular', 'Roboto Mono', 'Courier New', monospace;

  --gutter: clamp(20px, 5vw, 80px);
  --maxw: 1180px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--white);
  font-family: var(--display);
  font-weight: 400;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* ---------- chrome / mono labels ---------- */
.mono { font-family: var(--mono); font-weight: 700; text-transform: uppercase; }
.chrome-label {
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(11px, 1.1vw, 13px);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--grey-label);
}
.chrome-label .amber { color: var(--amber); }
.chrome-label .pipe { color: var(--grey-divider); padding: 0 2px; }

/* eyebrow: 50x3 amber rule + mono label */
.eyebrow { display: flex; align-items: center; gap: 14px; margin-bottom: 22px; }
.eyebrow::before { content: ""; width: 50px; height: 3px; background: var(--amber); flex: none; }
.eyebrow span {
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(12px, 1.2vw, 14px);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--amber);
}

/* ---------- headings ---------- */
h1, h2, h3 { font-family: var(--display); line-height: 1.05; letter-spacing: -0.03em; }
.section-h1 { font-weight: 700; font-size: clamp(34px, 5.4vw, 58px); margin-bottom: 18px; }
.lede { color: var(--grey-body); font-size: clamp(15px, 1.7vw, 18px); max-width: 70ch; line-height: 1.55; }

/* ---------- layout ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }
section { padding: clamp(56px, 8vw, 104px) 0; border-top: 1px solid var(--grey-rule); }
.amber { color: var(--amber); }
.parchment { color: var(--parchment); }

/* ============================================================
   NAV
   ============================================================ */
header.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11,11,11,0.82);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--grey-rule);
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 16px var(--gutter);
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.logo {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(20px, 2.4vw, 26px); letter-spacing: -0.04em;
  text-decoration: none; white-space: nowrap;
}
.logo .isaac { color: var(--amber); }
.logo .slash { color: var(--white); }
.logo .coaching { color: var(--parchment); }

.nav-links { display: flex; align-items: center; gap: clamp(18px, 2.5vw, 34px); }
.nav-links a {
  font-family: var(--mono); font-weight: 700; font-size: 12px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--grey-label); text-decoration: none; transition: color 0.18s ease;
}
.nav-links a:hover { color: var(--white); }
.nav-links a.cta { color: var(--amber); }
.nav-links a.cta:hover { color: var(--white); }
.nav-links .desk { display: inline; }
@media (max-width: 760px) { .nav-links .desk { display: none; } }

/* ============================================================
   BREADCRUMB
   ============================================================ */
.breadcrumb { padding: 20px 0 0; }
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.breadcrumb li {
  font-family: var(--mono); font-weight: 700; font-size: 11px;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--grey-muted);
}
.breadcrumb a { color: var(--grey-label); text-decoration: none; }
.breadcrumb a:hover { color: var(--amber); }
.breadcrumb li[aria-current] { color: var(--amber); }
.breadcrumb .sep { color: var(--grey-divider); }

/* ============================================================
   LANDING HERO
   ============================================================ */
.hero {
  padding: clamp(40px, 6vw, 72px) 0 clamp(52px, 8vw, 96px);
  border-top: none; position: relative;
}
.hero::after {
  content: ""; position: absolute; top: -10%; right: -8%;
  width: 52vw; height: 52vw; max-width: 680px; max-height: 680px;
  background: radial-gradient(circle, rgba(240,160,64,0.10) 0%, rgba(240,160,64,0) 68%);
  pointer-events: none; z-index: 0;
}
.hero .wrap { position: relative; z-index: 1; }
.hero h1 {
  font-weight: 700; font-size: clamp(40px, 7vw, 80px);
  line-height: 0.98; letter-spacing: -0.04em; margin: 6px 0 18px; max-width: 18ch;
}
.hero h1 .amber { color: var(--amber); }
.hero-rule { width: 240px; max-width: 55%; height: 3px; background: var(--amber); margin: 14px 0 28px; }
.hero-sub { color: var(--grey-body); font-size: clamp(16px, 2vw, 21px); max-width: 54ch; line-height: 1.5; margin-bottom: 34px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }

/* ---------- buttons ---------- */
.btn {
  font-family: var(--mono); font-weight: 700; font-size: 13px;
  letter-spacing: 0.14em; text-transform: uppercase; text-decoration: none;
  padding: 15px 26px; border: 1px solid var(--amber);
  display: inline-flex; align-items: center; gap: 10px;
  transition: all 0.18s ease; cursor: pointer;
}
.btn-primary { background: var(--amber); color: #0B0B0B; }
.btn-primary:hover { background: #ffb455; border-color: #ffb455; }
.btn-ghost { background: transparent; color: var(--amber); }
.btn-ghost:hover { background: var(--surface-amber); }
.btn svg { width: 16px; height: 16px; }

/* ============================================================
   SECTION HEAD + FILE CHROME
   ============================================================ */
.file-chrome { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 30px; gap: 16px; }
.section-head { margin-bottom: 44px; }

/* ============================================================
   PROSE (article body)
   ============================================================ */
.prose { max-width: 74ch; }
.prose > * + * { margin-top: 18px; }
.prose h2 {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(26px, 3.4vw, 38px); letter-spacing: -0.03em;
  margin-top: 52px; margin-bottom: 4px; color: var(--white);
}
.prose h2:first-child { margin-top: 0; }
.prose h3 {
  font-family: var(--display); font-weight: 600;
  font-size: clamp(19px, 2.2vw, 24px); letter-spacing: -0.02em;
  margin-top: 30px; color: var(--amber);
}
.prose p { color: var(--grey-body); font-size: clamp(15px, 1.7vw, 17px); line-height: 1.65; }
.prose strong { color: var(--white); font-weight: 600; }
.prose a { color: var(--amber); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
.prose a:hover { color: #ffb455; }
.prose ul, .prose ol { padding-left: 0; list-style: none; }
.prose ul li, .prose ol li {
  color: var(--grey-body); font-size: clamp(15px, 1.7vw, 17px); line-height: 1.6;
  padding: 9px 0 9px 30px; position: relative; border-bottom: 1px solid var(--grey-rule);
}
.prose ul li::before {
  content: ""; position: absolute; left: 0; top: 17px;
  width: 12px; height: 2px; background: var(--amber);
}
.prose ol { counter-reset: li; }
.prose ol li { counter-increment: li; }
.prose ol li::before {
  content: counter(li); position: absolute; left: 0; top: 9px;
  font-family: var(--mono); font-weight: 700; font-size: 13px; color: var(--amber);
}
.prose blockquote {
  border-left: 3px solid var(--amber); background: var(--surface-amber);
  padding: 18px 22px; margin-top: 24px;
}
.prose blockquote p { color: var(--parchment); }

/* two-column content + aside */
.content-grid { display: grid; grid-template-columns: 1fr; gap: clamp(40px, 6vw, 72px); }
@media (min-width: 960px) { .content-grid { grid-template-columns: minmax(0,1fr) 320px; } }
.aside-card {
  background: var(--surface-card); border: 1px solid var(--surface-border);
  padding: 28px; align-self: start; position: sticky; top: 92px;
}
.aside-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; }
.aside-card p { color: var(--grey-body); font-size: 14px; line-height: 1.6; margin-bottom: 16px; }
.aside-card .btn { width: 100%; justify-content: center; }
.aside-card .meta-row {
  font-family: var(--mono); font-weight: 700; font-size: 11px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--grey-muted); margin-top: 18px;
  padding-top: 16px; border-top: 1px solid var(--grey-rule);
}
.aside-card .meta-row a { color: var(--amber); text-decoration: none; }

/* ============================================================
   FEATURE LIST (reused)
   ============================================================ */
.feature-list { border-top: 1px solid var(--grey-rule); }
.feature { display: flex; gap: clamp(16px, 2.4vw, 26px); padding: 24px 0; border-bottom: 1px solid var(--grey-rule); align-items: flex-start; }
.feature .ic { flex: none; width: 44px; height: 44px; border-radius: 50%; border: 2px solid var(--amber); display: flex; align-items: center; justify-content: center; margin-top: 2px; }
.feature .ic svg { width: 22px; height: 22px; stroke: var(--amber); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.feature .body h3 { font-weight: 700; font-size: clamp(18px, 2.1vw, 22px); margin-bottom: 5px; color: var(--white); }
.feature .body p { color: var(--grey-body); font-size: 15px; line-height: 1.55; max-width: 78ch; }

/* ============================================================
   STEPS (reused)
   ============================================================ */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--grey-rule); }
.step { padding: 30px clamp(20px, 2.4vw, 30px); border-right: 1px solid var(--grey-rule); }
.step:last-child { border-right: none; }
.step .n { font-family: var(--display); font-weight: 700; font-size: 38px; color: var(--amber); letter-spacing: -0.03em; margin-bottom: 12px; line-height: 1; }
.step h3 { font-weight: 700; font-size: 21px; margin-bottom: 8px; color: var(--white); }
.step p { color: var(--grey-body); font-size: 15px; }
@media (max-width: 720px) { .steps { grid-template-columns: 1fr; } .step { border-right: none; border-bottom: 1px solid var(--grey-rule); } .step:last-child { border-bottom: none; } }

/* ============================================================
   FAQ
   ============================================================ */
.faq { border-top: 1px solid var(--grey-rule); max-width: 80ch; }
.faq details { border-bottom: 1px solid var(--grey-rule); }
.faq summary {
  cursor: pointer; list-style: none; padding: 22px 40px 22px 0; position: relative;
  font-family: var(--display); font-weight: 600; font-size: clamp(17px, 2vw, 21px);
  color: var(--white); letter-spacing: -0.02em;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: 4px; top: 18px;
  font-family: var(--mono); font-weight: 700; font-size: 26px; color: var(--amber);
  transition: transform 0.2s ease;
}
.faq details[open] summary::after { content: "–"; }
.faq .answer { padding: 0 40px 24px 0; }
.faq .answer p { color: var(--grey-body); font-size: clamp(15px, 1.7vw, 16px); line-height: 1.65; }
.faq .answer p + p { margin-top: 12px; }
.faq .answer a { color: var(--amber); }

/* ============================================================
   CTA BAND
   ============================================================ */
.cta-band { background: var(--amber); color: #0B0B0B; }
.cta-band .wrap { padding-top: clamp(44px, 6vw, 72px); padding-bottom: clamp(44px, 6vw, 72px); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px; }
.cta-band h2 { font-family: var(--display); font-weight: 700; font-size: clamp(28px, 4vw, 46px); letter-spacing: -0.03em; color: #0B0B0B; max-width: 18ch; }
.cta-band p { color: #2a1c08; font-size: 16px; margin-top: 8px; max-width: 44ch; }
.cta-band .btn { background: #0B0B0B; color: var(--amber); border-color: #0B0B0B; }
.cta-band .btn:hover { background: #1a1a1a; border-color: #1a1a1a; }

/* ============================================================
   LINK GRID (internal links / areas / services)
   ============================================================ */
.link-grid { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--grey-rule); }
.link-grid a {
  padding: 22px clamp(18px, 2.2vw, 28px); text-decoration: none; display: block;
  border-right: 1px solid var(--grey-rule); border-bottom: 1px solid var(--grey-rule);
  transition: background 0.18s ease;
}
.link-grid a:hover { background: var(--surface-card); }
.link-grid a .k { font-family: var(--mono); font-weight: 700; font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--grey-muted); display: block; margin-bottom: 8px; }
.link-grid a .t { font-family: var(--display); font-weight: 700; font-size: 18px; color: var(--amber); letter-spacing: -0.02em; }
.link-grid a:hover .t { color: #ffb455; }
.link-grid a:nth-child(3n) { border-right: none; }
@media (max-width: 820px) {
  .link-grid { grid-template-columns: repeat(2, 1fr); }
  .link-grid a:nth-child(3n) { border-right: 1px solid var(--grey-rule); }
  .link-grid a:nth-child(2n) { border-right: none; }
}
@media (max-width: 520px) {
  .link-grid { grid-template-columns: 1fr; }
  .link-grid a { border-right: none !important; }
}

/* ============================================================
   FOOTER
   ============================================================ */
footer { border-top: 1px solid var(--grey-rule); padding: clamp(44px, 7vw, 76px) 0 clamp(34px, 5vw, 52px); }
.footer-top { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 30px; margin-bottom: 40px; }
.footer-logo { font-family: var(--display); font-weight: 700; font-size: 30px; letter-spacing: -0.04em; }
.footer-logo .isaac { color: var(--amber); }
.footer-logo .slash { color: var(--white); }
.footer-logo .coaching { color: var(--parchment); }
.footer-tag { color: var(--grey-body); font-size: 15px; margin-top: 8px; max-width: 36ch; }
.footer-contact { display: flex; flex-direction: column; gap: 10px; }
.footer-contact a { font-family: var(--mono); font-weight: 700; font-size: 13px; letter-spacing: 0.1em; color: var(--amber); text-decoration: none; }
.footer-contact a:hover { color: var(--white); }
.footer-bar { border-top: 1px solid var(--grey-rule); padding-top: 24px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
.footer-bar p { font-family: var(--mono); font-weight: 700; font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--grey-muted); }
.footer-links { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-bottom: 28px; }
.footer-links a { font-family: var(--mono); font-weight: 700; font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--grey-label); text-decoration: none; }
.footer-links a:hover { color: var(--amber); }

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}