@import url("tokens.css");

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--fg2);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 32px; }

/* ============ NAV ============ */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(245, 245, 245, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--d-base) var(--ease-out);
}
.nav.stuck { border-bottom-color: var(--border); }
.nav-row { display: flex; align-items: center; height: 72px; gap: 32px; }
.nav-logo img { height: 26px; display: block; }
.nav-links { display: flex; gap: 28px; }
.nav-link {
  font-size: 14px; color: var(--fg2); cursor: pointer;
  display: inline-flex; align-items: center; gap: 4px;
  background: none; border: none; font-family: inherit;
}
.nav-link:hover { color: var(--fg1); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border-radius: 8px;
  font-family: inherit; font-size: 14px; font-weight: 500;
  border: 1px solid transparent; cursor: pointer;
  line-height: 1; white-space: nowrap;
  transition: background var(--d-fast) var(--ease-out), border-color var(--d-fast) var(--ease-out);
  text-decoration: none;
}
.btn-primary { background: var(--ember-500); color: #fff; }
.btn-primary:hover { background: var(--ember-600); text-decoration: none; }
.btn-secondary { background: transparent; color: var(--fg1); border-color: var(--border-strong); }
.btn-secondary:hover { background: var(--bg-elevated); text-decoration: none; }
.btn-dark { background: var(--slate-700); color: var(--fg-on-dark); }
.btn-dark:hover { background: var(--slate-900); text-decoration: none; }
.btn-ghost { background: transparent; color: var(--fg1); padding: 10px 12px; }
.btn-ghost:hover { background: var(--bg-elevated); text-decoration: none; }
.btn-lg { padding: 13px 24px; font-size: 15px; }
.icon { flex-shrink: 0; }

/* ============ HERO ============ */
.hero { padding: 76px 0 56px; position: relative; overflow: hidden; }
.hero::before {
  content: ''; position: absolute; inset: 0;
  background: url('assets/bg-hero-columns.svg') center top / cover no-repeat;
  opacity: 0.5; pointer-events: none;
}
.hero-row { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; position: relative; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 500;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--teal-700);
  background: var(--teal-50);
  padding: 6px 12px; border-radius: 999px;
  border: 1px solid var(--teal-100);
  margin-bottom: 24px;
}
.hero-eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--ember-500); }
.hero h1 {
  font-family: var(--font-display);
  font-size: 72px; font-weight: 400;
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--slate-900);
  margin: 0 0 24px;
}
.hero h1 em { font-style: italic; color: var(--slate-700); }
.hero h1 .accent { position: relative; display: inline-block; font-style: italic; }
.hero h1 .accent::after {
  content: ''; position: absolute; left: 0; right: 0; bottom: 6px;
  height: 10px; background: var(--ember-500); opacity: 0.18;
  z-index: -1; border-radius: 2px;
}
.hero p.lede {
  font-family: var(--font-display);
  font-size: 21px; line-height: 1.45;
  color: var(--fg2);
  max-width: 520px;
  margin: 0 0 32px;
  letter-spacing: -0.005em;
}
.hero-cta { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.hero-cta .hint { font-size: 13px; color: var(--fg3); margin-left: 4px; }

.hero-vis {
  position: relative;
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 20px 50px rgba(20,24,29,0.08), 0 4px 10px rgba(20,24,29,0.04);
  border: 1px solid var(--border);
  overflow: hidden;
}
.hero-vis .vis-hdr {
  background: var(--bg-sunken);
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  display: flex; gap: 8px; align-items: center;
}
.hero-vis .vis-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--slate-200); }
.hero-vis .vis-url {
  margin-left: 14px;
  font-family: var(--font-mono);
  font-size: 11px; color: var(--fg3);
  background: #fff;
  padding: 4px 10px; border-radius: 4px;
  border: 1px solid var(--border);
  flex: 1; max-width: 260px;
}
.hero-vis .vis-body { padding: 20px 22px 24px; }
.hero-vis .vis-eyebrow {
  font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--teal-700); font-weight: 600;
  display: flex; align-items: center; gap: 8px; margin-bottom: 14px;
}
.hero-vis .vis-eyebrow .glyph { font-family: var(--font-display); font-style: italic; color: var(--ember-500); font-size: 14px; letter-spacing: 0; text-transform: none; }
.hero-vis .org-tree { display: flex; flex-direction: column; align-items: center; gap: 0; margin-bottom: 18px; }
.node {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 999px; padding: 6px 12px 6px 6px;
  font-size: 12px; font-weight: 500; color: var(--fg1);
}
.node .ai-dot { width: 16px; height: 16px; border-radius: 50%; background: var(--teal-500); display: inline-flex; align-items: center; justify-content: center; color: #fff; font-size: 9px; font-weight: 700; font-family: var(--font-mono); flex-shrink: 0; }
.node.root { background: var(--slate-900); color: #fff; border-color: var(--slate-900); }
.node.root .ai-dot { background: var(--ember-500); }
.tree-branch { display: flex; justify-content: center; gap: 28px; margin: 10px 0; position: relative; }
.tree-branch::before {
  content: ''; position: absolute; top: -10px; left: 15%; right: 15%; height: 1px; background: var(--border-strong);
}
.tree-row { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; }
.hero-vis .vis-row {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 8px;
}
.hero-vis .vis-row .num { font-family: var(--font-mono); font-size: 11px; color: var(--fg3); width: 16px; flex-shrink: 0; }
.hero-vis .vis-row .ttl { font-size: 13px; color: var(--fg1); font-weight: 500; flex: 1; }
.hero-vis .vis-row .ref { font-family: var(--font-mono); font-size: 10px; color: var(--fg3); }
.hero-vis .vis-row .badge { font-size: 10px; padding: 2px 7px; border-radius: 999px; background: #FAF1DC; color: #8B5E13; font-weight: 500; white-space: nowrap; }
.hero-vis .vis-row .badge.ok { background: #E6F2EC; color: #1F6E55; }

/* ============ TRUST BAR ============ */
.trusted { padding: 36px 0 56px; border-top: 1px solid var(--border); }
.trusted-label {
  text-align: center; font-size: 12px; color: var(--fg3);
  letter-spacing: 0.12em; text-transform: uppercase; font-weight: 500;
  margin-bottom: 24px;
}
.trusted-badges { display: flex; justify-content: center; align-items: center; gap: 14px; flex-wrap: wrap; }
.trust-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 500; color: var(--fg1);
  border: 1px solid var(--border-strong); border-radius: 999px;
  padding: 8px 16px; background: #fff;
}
.trust-badge .icon { color: var(--teal-700); }

/* ============ SECTION SHARED ============ */
.section { padding: 96px 0; }
.section-eyebrow {
  font-size: 12px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--teal-700); font-weight: 600;
  margin-bottom: 16px;
}
.section h2 {
  font-family: var(--font-display);
  font-size: 50px; font-weight: 400;
  letter-spacing: -0.02em; line-height: 1.08;
  color: var(--slate-900);
  margin: 0 0 16px;
  max-width: 760px;
}
.section h2 em { font-style: italic; color: var(--slate-600); }
.section .section-lede {
  font-family: var(--font-display);
  font-size: 19px; line-height: 1.5;
  color: var(--fg2); max-width: 600px;
  margin: 0 0 52px;
}

/* ============ PROBLEM GRID ============ */
.problem-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
.problem-card {
  background: #fff; border: 1px solid var(--border); border-radius: 12px;
  padding: 22px 18px;
}
.problem-card .num { font-family: var(--font-mono); font-size: 11px; color: var(--ember-600); margin-bottom: 14px; font-weight: 600; }
.problem-card h4 { font-size: 14px; font-weight: 600; color: var(--fg1); margin: 0 0 8px; letter-spacing: -0.005em; line-height: 1.3; }
.problem-card p { font-size: 12.5px; line-height: 1.5; color: var(--fg3); margin: 0; }

/* ============ FEATURES ============ */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature { background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 28px 28px 24px; display: flex; flex-direction: column; }
.feature-num { font-family: var(--font-mono); font-size: 11px; color: var(--fg4); margin-bottom: 18px; }
.feature h3 { font-family: var(--font-sans); font-size: 20px; font-weight: 600; color: var(--fg1); margin: 0 0 10px; letter-spacing: -0.01em; }
.feature p { font-size: 14px; line-height: 1.55; color: var(--fg2); margin: 0 0 18px; flex: 1; }
.feature-visual { background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 14px; font-size: 12px; }
.feature-visual .fv-label { font-size: 11px; color: var(--teal-700); font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 8px; display: block; }
.skill-tag { display: inline-flex; font-size: 11px; padding: 3px 9px; border-radius: 999px; background: #fff; border: 1px solid var(--border-strong); color: var(--fg2); margin: 0 4px 4px 0; }
.pending-row { display: flex; align-items: center; gap: 8px; }
.pending-row .badge { font-size: 10px; padding: 2px 8px; border-radius: 999px; background: #FAF1DC; color: #8B5E13; font-weight: 500; }
.kpi-bar-track { height: 6px; border-radius: 999px; background: var(--slate-100); overflow: hidden; margin-top: 8px; }
.kpi-bar-fill { height: 100%; background: var(--teal-500); border-radius: 999px; }

/* ============ HOW IT WORKS / DETAIL BLOCK ============ */
.detail { background: var(--slate-900); padding: 96px 0; color: var(--fg-on-dark); position: relative; overflow: hidden; }
.detail::before {
  content: ''; position: absolute; right: -10%; top: -10%; width: 600px; height: 600px;
  background: radial-gradient(closest-side, rgba(118,171,174,0.16), transparent);
  pointer-events: none;
}
.detail h2 { color: #fff; }
.detail h2 em { color: var(--teal-300); }
.detail .section-lede { color: rgba(236,238,241,0.75); }
.detail-row { display: grid; grid-template-columns: 1fr 1.1fr; gap: 64px; align-items: center; }
.detail-list { display: flex; flex-direction: column; gap: 22px; margin-top: 32px; }
.detail-item { display: flex; gap: 16px; }
.detail-item .ico {
  width: 36px; height: 36px; border-radius: 8px;
  background: rgba(118,171,174,0.16); color: var(--teal-300);
  display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.detail-item .step-no {
  width: 36px; height: 36px; border-radius: 8px;
  background: rgba(255,87,34,0.16); color: var(--ember-300);
  display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0;
  font-family: var(--font-mono); font-size: 13px; font-weight: 600;
}
.detail-item h4 { font-size: 15px; font-weight: 600; color: #fff; margin: 0 0 4px; }
.detail-item p { font-size: 13px; color: rgba(236,238,241,0.65); margin: 0; line-height: 1.5; }

.product-shot { background: #fff; border-radius: 12px; border: 1px solid rgba(255,255,255,0.08); box-shadow: 0 30px 60px rgba(0,0,0,0.35); overflow: hidden; position: relative; }
.product-shot-bar { background: var(--bg-sunken); border-bottom: 1px solid var(--border); padding: 10px 14px; display: flex; align-items: center; gap: 6px; }
.product-shot-bar .d { width: 9px; height: 9px; border-radius: 50%; background: var(--slate-200); }
.product-shot-body { padding: 20px 22px; color: var(--fg1); }
.product-shot-body h4 { font-size: 17px; font-weight: 600; margin: 0 0 8px; letter-spacing: -0.01em; }
.product-shot-body p { font-size: 13px; line-height: 1.55; color: var(--fg2); margin: 0 0 12px; }
.org-node-row { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px; margin-top: 8px; }
.org-node-row .avatar { width: 26px; height: 26px; border-radius: 50%; background: var(--teal-500); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-size: 10px; font-weight: 700; flex-shrink: 0; }
.org-node-row .ttl { font-size: 13px; color: var(--fg1); font-weight: 500; }
.org-node-row .sub { font-size: 11px; color: var(--fg3); font-family: var(--font-mono); }
.org-node-row .info { flex: 1; min-width: 0; }
.org-node-row .badge { font-size: 10px; padding: 2px 7px; border-radius: 999px; background: #E6F2EC; color: #1F6E55; font-weight: 500; white-space: nowrap; }
.org-node-row .badge.pending { background: #FAF1DC; color: #8B5E13; }

/* ============ DIFFERENTIATORS TABLE ============ */
.diff-table { width: 100%; border-collapse: collapse; margin-top: 8px; }
.diff-table th { text-align: left; font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg3); font-weight: 600; padding: 0 20px 16px; }
.diff-table td { padding: 20px; font-size: 14.5px; line-height: 1.55; border-top: 1px solid var(--border); vertical-align: top; }
.diff-table td:first-child { color: var(--fg3); }
.diff-table td:last-child { color: var(--fg1); font-weight: 500; }
.diff-table tr td:last-child { position: relative; }

/* ============ TRUST / HUMAN-IN-THE-LOOP QUOTE ============ */
.quote { padding: 96px 0; background: var(--bg); }
.quote-row { display: grid; grid-template-columns: 1fr 1.6fr; gap: 64px; }
.quote-attr { display: flex; flex-direction: column; gap: 6px; }
.quote-attr .avatar { width: 48px; height: 48px; border-radius: 10px; background: var(--slate-900); color: var(--teal-300); display: inline-flex; align-items: center; justify-content: center; font-size: 20px; font-family: var(--font-display); font-style: italic; margin-bottom: 8px; }
.quote-attr .name { font-size: 15px; font-weight: 600; color: var(--fg1); }
.quote-attr .role { font-size: 13px; color: var(--fg3); }
.quote-body { font-family: var(--font-display); font-size: 36px; line-height: 1.2; color: var(--slate-900); letter-spacing: -0.015em; margin: 0 0 28px; position: relative; }
.quote-body::before { content: '"'; position: absolute; top: -34px; left: -8px; font-size: 90px; color: var(--ember-500); opacity: 0.5; line-height: 1; }
.autonomy-steps { display: flex; align-items: center; gap: 0; margin-top: 8px; }
.autonomy-step { flex: 1; display: flex; flex-direction: column; gap: 6px; padding: 16px 18px; background: #fff; border: 1px solid var(--border); }
.autonomy-step:first-child { border-radius: 10px 0 0 10px; }
.autonomy-step:last-child { border-radius: 0 10px 10px 0; }
.autonomy-step + .autonomy-step { border-left: none; }
.autonomy-step .lbl { font-size: 12px; font-weight: 600; color: var(--teal-700); letter-spacing: 0.04em; text-transform: uppercase; }
.autonomy-step .desc { font-size: 12.5px; color: var(--fg3); line-height: 1.4; }
.autonomy-arrow { color: var(--fg4); flex-shrink: 0; }

/* ============ FAQ ============ */
.faq-list { max-width: 820px; }
.faq-item { border-top: 1px solid var(--border); }
.faq-item:last-child { border-bottom: 1px solid var(--border); }
.faq-item summary {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 22px 4px; cursor: pointer; list-style: none;
  font-size: 16px; font-weight: 500; color: var(--fg1);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .plus { flex-shrink: 0; color: var(--fg3); transition: transform var(--d-base) var(--ease-out); }
.faq-item[open] summary .plus { transform: rotate(45deg); }
.faq-item .faq-a { padding: 0 4px 22px; font-size: 14.5px; line-height: 1.6; color: var(--fg2); max-width: 640px; }

/* ============ CTA ============ */
.cta { padding: 96px 0 112px; text-align: center; background: var(--bg); border-top: 1px solid var(--border); }
.cta h2 { font-family: var(--font-display); font-size: 58px; letter-spacing: -0.02em; line-height: 1.05; margin: 0 auto 24px; max-width: 760px; color: var(--slate-900); }
.cta h2 em { font-style: italic; color: var(--slate-600); }
.cta p { font-size: 17px; color: var(--fg3); margin: 0 auto 32px; max-width: 520px; }
.cta-buttons { display: flex; gap: 12px; justify-content: center; }

/* ============ FOOTER ============ */
.ftr { background: var(--slate-950); color: rgba(236,238,241,0.7); padding: 64px 0 36px; border-top: 1px solid rgba(255,255,255,0.06); }
.ftr-row { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr; gap: 48px; padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.ftr-brand img { height: 28px; margin-bottom: 16px; }
.ftr-brand p { font-size: 13px; line-height: 1.6; color: rgba(236,238,241,0.55); margin: 0 0 16px; max-width: 280px; }
.ftr-brand .ftr-badges { display: flex; flex-direction: column; gap: 6px; }
.ftr-brand .ftr-badges span { font-size: 11.5px; color: rgba(236,238,241,0.45); display: flex; align-items: center; gap: 6px; }
.ftr-col h5 { font-size: 12px; font-weight: 600; color: #fff; margin: 0 0 16px; letter-spacing: 0.04em; text-transform: uppercase; }
.ftr-col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.ftr-col a { font-size: 13px; color: rgba(236,238,241,0.6); }
.ftr-col a:hover { color: #fff; }
.ftr-bottom { padding-top: 28px; display: flex; justify-content: space-between; align-items: center; font-size: 12px; color: rgba(236,238,241,0.5); flex-wrap: wrap; gap: 12px; }
.ftr-bottom .links { display: flex; gap: 24px; }
.ftr-bottom .links a { color: rgba(236,238,241,0.5); }
.ftr-bottom .links a:hover { color: rgba(236,238,241,0.8); }

/* ============ RESPONSIVE ============ */
@media (max-width: 1080px) {
  .nav-links { display: none; }
  .hero-row { grid-template-columns: 1fr; }
  .hero h1 { font-size: 52px; }
  .detail-row { grid-template-columns: 1fr; }
  .quote-row { grid-template-columns: 1fr; gap: 32px; }
  .problem-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: 1fr; }
  .pricing-grid, .ftr-row { grid-template-columns: 1fr 1fr; }
  .section h2, .cta h2 { font-size: 38px; }
  .diff-table { font-size: 13px; }
  .autonomy-steps { flex-direction: column; }
  .autonomy-step, .autonomy-step:first-child, .autonomy-step:last-child { border-radius: 10px; border-left: 1px solid var(--border); width: 100%; }
}
@media (max-width: 640px) {
  .container { padding: 0 20px; }
  .hero h1 { font-size: 40px; }
  .problem-grid { grid-template-columns: 1fr; }
  .ftr-row { grid-template-columns: 1fr; }
  .diff-table thead { display: none; }
  .diff-table tr { display: flex; flex-direction: column; padding: 16px 0; }
}