/* ============================================================
   Consort Labs — Service Landing Page (shared)
   Used by /fractional-caio and /ai-consulting.
   Extends --cl-* tokens from ../tokens.css.
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--cl-bg);
  color: var(--cl-text);
  font-family: var(--cl-font-sans);
  font-size: var(--cl-fs-body);
  line-height: var(--cl-lh-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; font-weight: var(--cl-weight-medium); letter-spacing: var(--cl-tracking-tight); line-height: var(--cl-lh-tight); }
img, svg { display: block; }

.wrap { max-width: var(--cl-wrap-max); margin: 0 auto; padding: 0 var(--cl-wrap-pad); }

/* ---- Utilities ---- */
.eyebrow {
  display: block;
  font-family: var(--cl-font-sans);
  font-weight: var(--cl-weight-semibold);
  font-size: var(--cl-fs-eyebrow);
  letter-spacing: var(--cl-tracking-eyebrow);
  text-transform: uppercase;
  color: var(--cl-cyan);
}
.serif { font-family: var(--cl-font-serif); }
.text-center { text-align: center; }

/* ---- Logo / wordmark ---- */
.logo { display: flex; align-items: center; gap: 14px; }
.wordmark {
  font-size: 25px;
  letter-spacing: -0.01em;
  white-space: nowrap;
  display: flex;
  align-items: baseline;
  gap: 0.18em;
}
.wordmark .wm-consort { font-family: var(--cl-font-serif); font-weight: var(--cl-weight-medium); color: #fff; }
.wordmark .wm-labs    { font-family: var(--cl-font-sans);  font-weight: var(--cl-weight-medium); color: var(--cl-cyan); font-size: 0.96em; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--cl-font-sans);
  font-weight: var(--cl-weight-semibold);
  font-size: 15px;
  letter-spacing: 0.01em;
  padding: 13px 22px;
  border-radius: var(--cl-radius-pill);
  cursor: pointer;
  border: 1px solid transparent;
  transition:
    transform var(--cl-dur-fast) var(--cl-ease),
    background var(--cl-dur-fast) var(--cl-ease),
    box-shadow var(--cl-dur-fast) var(--cl-ease),
    border-color var(--cl-dur-fast) var(--cl-ease),
    color var(--cl-dur-fast) var(--cl-ease);
}
.btn-primary { background: var(--cl-cyan); color: var(--cl-cyan-ink); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: var(--cl-glow-cyan); }
.btn-ghost { border-color: var(--cl-line-strong); color: var(--cl-text); }
.btn-ghost:hover { border-color: var(--cl-cyan); color: var(--cl-cyan); }

/* ---- Header ---- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: var(--cl-header-bg);
  border-bottom: 1px solid var(--cl-header-line);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 86px;
}
.site-header .wordmark .wm-consort { color: var(--cl-purple-700); }
.site-header .wordmark .wm-labs    { color: var(--cl-ink); }

.site-nav { display: flex; align-items: center; gap: 24px; }
.nav-links { display: flex; align-items: center; gap: 34px; }
.nav-links a {
  font-size: 14px;
  color: var(--cl-ink-muted);
  font-weight: var(--cl-weight-medium);
  letter-spacing: 0.01em;
  transition: color var(--cl-dur-fast) var(--cl-ease);
}
.nav-links a:hover { color: var(--cl-ink); }
.site-nav .btn { padding: 9px 18px; font-size: 14px; }

/* ---- Sections ---- */
section { position: relative; padding: var(--cl-space-section) 0; }
main { padding-top: 86px; }

.sec-head {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 56px;
}
.sec-head.center { align-items: center; text-align: center; }
.sec-head h2 {
  font-family: var(--cl-font-serif);
  font-size: var(--cl-fs-h2);
}
.sec-head p { color: var(--cl-text-muted); font-size: 19px; margin: 0; max-width: 60ch; }

/* Alternating surface band, reused for narrative/prose sections */
.band-surface { background: var(--cl-surface); }
.band-surface::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: var(--cl-line);
}
.band-surface::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: var(--cl-line);
}

.prose { max-width: 74ch; }
.prose p { color: var(--cl-text-muted); font-size: 17.5px; line-height: 1.75; margin: 0 0 20px; }
.prose p:last-child { margin-bottom: 0; }

.plain-list {
  list-style: none;
  margin: 24px 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.plain-list li {
  position: relative;
  padding-left: 26px;
  color: var(--cl-text-muted);
  font-size: 17px;
  line-height: 1.6;
}
.plain-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 10px;
  width: 12px; height: 1.5px;
  background: var(--cl-cyan);
}

.pull-quote {
  font-family: var(--cl-font-serif);
  font-style: italic;
  font-size: clamp(21px, 2.6vw, 28px);
  color: var(--cl-text);
  line-height: 1.4;
  margin: 32px 0 0;
}

/* ---- Scroll reveal ---- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity var(--cl-dur-reveal) var(--cl-ease),
    transform var(--cl-dur-reveal) var(--cl-ease);
}
.reveal.in { opacity: 1; transform: none; }

@keyframes pulse {
  0%   { box-shadow: 0 0 0 0   rgba(30, 214, 224, 0.5); }
  70%  { box-shadow: 0 0 0 9px rgba(30, 214, 224, 0); }
  100% { box-shadow: 0 0 0 0   rgba(30, 214, 224, 0); }
}

/* ============================================================
   HERO
   ============================================================ */

.hero {
  position: relative;
  padding: 84px 0 100px;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  top: -180px; left: 50%;
  transform: translateX(-50%);
  width: 1100px; height: 760px;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(128,73,214,0.42), rgba(128,73,214,0) 70%);
  filter: blur(8px);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  top: 30px; right: -160px;
  width: 680px; height: 520px;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(30,214,224,0.18), transparent 70%);
  pointer-events: none;
}
.hero .wrap { position: relative; max-width: 900px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  font-weight: var(--cl-weight-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cl-cyan);
  background: rgba(30, 214, 224, 0.1);
  border: 1px solid rgba(30, 214, 224, 0.22);
  border-radius: var(--cl-radius-pill);
  padding: 5px 13px;
  margin-bottom: 24px;
}

.hero h1 {
  font-family: var(--cl-font-serif);
  font-size: clamp(36px, 5.4vw, 64px);
  margin: 0 0 24px;
  max-width: 18ch;
}
.hero .sub {
  color: var(--cl-text-muted);
  font-size: var(--cl-fs-lead);
  max-width: 60ch;
  margin: 0 0 36px;
  line-height: 1.6;
}
.hero-cta { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.hero-microcopy {
  margin: 18px 0 0;
  color: var(--cl-text-faint);
  font-size: 13px;
  letter-spacing: 0.03em;
}

/* ============================================================
   CARD GRID (icon + title + body) — reused for pillar/value lists
   ============================================================ */

.value-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1px;
  background: var(--cl-line);
  border: 1px solid var(--cl-line);
  border-radius: var(--cl-radius-lg);
  overflow: hidden;
}
.value-cell {
  flex: 1 1 300px;
  background: var(--cl-bg);
  padding: 40px 36px;
  transition: background var(--cl-dur-base) var(--cl-ease);
}
.value-cell:hover { background: var(--cl-surface); }
.value-icon {
  width: 44px; height: 44px;
  border-radius: var(--cl-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  background: rgba(30, 214, 224, 0.08);
  border: 1px solid rgba(30, 214, 224, 0.18);
  color: var(--cl-cyan);
  flex-shrink: 0;
}
.value-cell h3 { font-size: 19px; margin-bottom: 10px; }
.value-cell p { color: var(--cl-text-muted); font-size: 15px; margin: 0; line-height: 1.6; }

/* ============================================================
   PANELS — bordered cards for tracks / comparisons
   ============================================================ */

.panel-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--cl-space-6);
}
.panel {
  background: var(--cl-surface-2);
  border: 1px solid var(--cl-line);
  border-radius: var(--cl-radius-lg);
  padding: 40px 36px;
  transition: border-color var(--cl-dur-base) var(--cl-ease), transform var(--cl-dur-base) var(--cl-ease);
}
.panel:hover { border-color: var(--cl-line-strong); transform: translateY(-2px); }
.panel h3 { font-size: 24px; margin-bottom: 8px; }
.panel .panel-sub {
  font-family: var(--cl-font-serif);
  font-style: italic;
  font-size: 18px;
  color: var(--cl-lilac);
  margin: 0 0 18px;
  line-height: 1.4;
}
.panel > p { color: var(--cl-text-muted); font-size: 16px; line-height: 1.65; margin: 0 0 22px; }
.panel .feature-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.panel .feature-list li {
  color: var(--cl-text-muted);
  font-size: 15px;
  line-height: 1.6;
  padding-left: 20px;
  position: relative;
}
.panel .feature-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 10px; height: 1.5px;
  background: var(--cl-cyan);
}
.panel .feature-list strong { color: var(--cl-text); font-weight: var(--cl-weight-semibold); }
.panel-note {
  color: var(--cl-text-faint);
  font-size: 14px;
  margin: 0;
  padding-top: 18px;
  border-top: 1px solid var(--cl-line);
}

/* Fit-check style check/cross lists */
.fit-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.fit-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--cl-text-muted);
  font-size: 16px;
  line-height: 1.6;
}
.fit-list svg { flex-shrink: 0; margin-top: 3px; }
.fit-list.good svg { color: var(--cl-cyan); }
.fit-list.bad svg { color: var(--cl-text-faint); }

/* ============================================================
   HOW IT WORKS / STEPS
   ============================================================ */

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}
.steps-3 { grid-template-columns: repeat(3, 1fr); }
.steps::before {
  content: "";
  position: absolute;
  top: 30px;
  left: calc(12.5% + 16px);
  right: calc(12.5% + 16px);
  height: 1px;
  background: linear-gradient(90deg, var(--cl-purple-700), var(--cl-cyan));
  opacity: 0.4;
}
.steps-3::before {
  left: calc(16.666% + 16px);
  right: calc(16.666% + 16px);
}
.step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 20px;
  position: relative;
}
.step-num {
  width: 60px; height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cl-purple-800), var(--cl-purple-600));
  border: 1px solid var(--cl-purple-500);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--cl-font-serif);
  font-size: 22px;
  color: #fff;
  font-weight: var(--cl-weight-medium);
  flex-shrink: 0;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 6px var(--cl-bg);
}
.band-surface .step-num { box-shadow: 0 0 0 6px var(--cl-surface); }
.step h3 { font-size: 17px; margin-bottom: 10px; }
.step p { color: var(--cl-text-muted); font-size: 14.5px; margin: 0; line-height: 1.6; }

/* ============================================================
   FAQ
   ============================================================ */

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--cl-line);
  border-radius: var(--cl-radius-lg);
  overflow: hidden;
}
.faq-item { border-bottom: 1px solid var(--cl-line); }
.faq-item:last-child { border-bottom: none; }
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 26px 32px;
  cursor: pointer;
  list-style: none;
  font-size: 17px;
  font-weight: var(--cl-weight-medium);
  color: var(--cl-text);
  background: var(--cl-bg);
  transition: background var(--cl-dur-fast) var(--cl-ease), color var(--cl-dur-fast) var(--cl-ease);
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { background: var(--cl-surface); color: var(--cl-text); }
.faq-item[open] summary { background: var(--cl-surface); color: var(--cl-cyan); }
.faq-chevron {
  flex-shrink: 0;
  color: var(--cl-text-faint);
  transition: transform var(--cl-dur-fast) var(--cl-ease), color var(--cl-dur-fast) var(--cl-ease);
}
.faq-item[open] .faq-chevron { transform: rotate(180deg); color: var(--cl-cyan); }
.faq-body {
  padding: 0 32px 26px;
  background: var(--cl-surface);
  color: var(--cl-text-muted);
  font-size: 16px;
  line-height: 1.7;
}

/* ============================================================
   CTA SECTION
   ============================================================ */

.cta-section {
  background: var(--cl-bg);
  text-align: center;
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: -200px; left: 50%;
  transform: translateX(-50%);
  width: 900px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(84,42,152,0.30), transparent 70%);
  pointer-events: none;
}
.cta-section::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: var(--cl-line);
}
.cta-section .wrap { position: relative; z-index: 1; }
.cta-eyebrow { margin-bottom: 22px; }
.cta-section h2 {
  font-family: var(--cl-font-serif);
  font-size: clamp(34px, 5vw, 58px);
  margin-bottom: 18px;
}
.cta-section p {
  color: var(--cl-text-muted);
  font-size: 18px;
  margin: 0 auto 16px;
  max-width: 48ch;
}
.cta-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 24px;
}
.cta-buttons .btn { font-size: 16px; padding: 15px 26px; }
.cta-microcopy {
  margin: 22px 0 0;
  color: var(--cl-text-faint);
  font-size: 13px;
  letter-spacing: 0.03em;
}

/* ============================================================
   FOOTER
   ============================================================ */

.site-footer {
  border-top: 1px solid var(--cl-line);
  padding: 40px 0;
  background: var(--cl-bg-elev);
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--cl-text-faint);
  font-size: 13px;
  letter-spacing: 0.02em;
}
.footer-bottom a { color: var(--cl-text-muted); transition: color var(--cl-dur-fast) var(--cl-ease); }
.footer-bottom a:hover { color: var(--cl-cyan); }

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 920px) {
  .nav-links { display: none; }
  .value-cell { flex-basis: 45%; }
  .panel-grid { grid-template-columns: 1fr; }
  .steps, .steps-3 { grid-template-columns: 1fr 1fr; gap: 48px 20px; }
  .steps::before { display: none; }
}

@media (max-width: 680px) {
  .wrap { padding: 0 22px; }
  .hero { padding: 64px 0 70px; }
  .value-cell { flex-basis: 100%; }
  .steps, .steps-3 { grid-template-columns: 1fr; }
  section { padding: 70px 0; }
  .cta-section { padding: 80px 0; }
  .faq-item summary { padding: 20px 22px; font-size: 16px; }
  .faq-body { padding: 0 22px 22px; }
  .panel { padding: 32px 26px; }
}

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .pulse-dot { animation: none; }
}