:root {
  --bg: #f7f8f6;
  --surface: #ffffff;
  --surface-soft: #eef3f1;
  --ink: #101419;
  --muted: #5e6872;
  --quiet: #7b8490;
  --blue: #17324d;
  --blue-2: #214e68;
  --cyan: #5aa6b6;
  --sage: #9db8aa;
  --warm: #c69b63;
  --line: rgba(16,20,25,.11);
  --line-strong: rgba(16,20,25,.18);
  --shadow: 0 26px 70px rgba(18,31,47,.08);
  --max: 1240px;
  --radius: 26px;
  --sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  --display: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 0%, rgba(90,166,182,.13), transparent 34rem),
    radial-gradient(circle at 96% 4%, rgba(157,184,170,.18), transparent 28rem),
    var(--bg);
  line-height: 1.66;
}
a { color: inherit; }
.site-bg { display: none; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 28px;
  min-height: 66px;
  padding: 18px clamp(20px, 4vw, 58px);
  background: rgba(247,248,246,.88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  text-decoration: none;
  font-family: var(--display);
  font-weight: 760;
  letter-spacing: -0.035em;
  font-size: 1.15rem;
  color: var(--ink);
  white-space: nowrap;
}
.brand-mark {
  display: inline;
  width: auto;
  height: auto;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  color: var(--blue-2);
}
.brand-text {
  font-family: var(--mono);
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--quiet);
  font-size: .62rem;
}
.nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 28px);
  font-size: .86rem;
  color: var(--muted);
  white-space: nowrap;
  flex-wrap: nowrap;
}
.nav a {
  padding: 0;
  border-radius: 0;
  text-decoration: none;
  color: var(--muted);
  font-size: .86rem;
  transition: color .18s ease, opacity .18s ease;
}
.nav a:hover, .nav a.active { color: var(--ink); background: transparent; }

.section {
  max-width: none;
  margin: 0;
  padding: clamp(70px, 9vw, 124px) clamp(20px, 4vw, 58px);
}
.section > *, .hero-copy, .hero-panel, .section-head, .pathway, .two-col, .matrix-panel,
.closing-panel, .card-system, .module-matrix-toolbar, .internal-matrix-shell,
.advisor-grid, .maturity-panel, .logic-grid, .panel { max-width: var(--max); }
.section-head, .pathway, .two-col, .matrix-panel, .closing-panel, .card-system,
.module-matrix-toolbar, .internal-matrix-shell, .advisor-grid, .maturity-panel, .logic-grid, .section > .panel { margin-left: auto; margin-right: auto; }

.hero {
  display: grid;
  grid-template-columns: minmax(0,1.02fr) minmax(320px,.74fr);
  gap: clamp(42px, 7vw, 88px);
  align-items: end;
  min-height: auto;
  padding-top: clamp(82px, 11vw, 150px);
  padding-bottom: clamp(70px, 9vw, 120px);
}
.hero-copy { margin-left: auto; margin-right: 0; width: 100%; }
.hero h1, .section h1, .section h2 {
  margin: 0;
  font-family: var(--display);
  color: var(--ink);
  letter-spacing: -0.032em;
  word-spacing: 0.035em;
  line-height: 1.16;
}
.hero h1, .section h1 { font-size: clamp(2.95rem, 6.8vw, 6.25rem); max-width: 1100px; }
.section h2 { font-size: clamp(2.05rem, 4.2vw, 4.25rem); max-width: 1100px; }
h3 { margin: 0; font-size: 1.05rem; line-height: 1.18; letter-spacing: -.012em; }
h4 { margin: 0; font-size: 1rem; }
.eyebrow {
  margin: 0 0 22px;
  font-family: var(--mono);
  font-size: .74rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--blue-2);
  font-weight: 650;
}
.lead, .section-head p {
  margin: 32px 0 0;
  max-width: 780px;
  font-size: clamp(1.13rem, 1.7vw, 1.48rem);
  line-height: 1.58;
  color: var(--blue);
}
.section-head { margin-bottom: 32px; }
.section-head p { color: var(--muted); font-size: clamp(1.02rem, 1.32vw, 1.17rem); }

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 19px;
  border-radius: 999px;
  border: 1px solid var(--blue);
  text-decoration: none;
  font-weight: 700;
  font-size: .9rem;
  transition: transform .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-ghost { background: transparent; color: var(--blue); }
.btn:hover { transform: translateY(-1px); }
.btn-ghost:hover { background: rgba(23,50,77,.06); }

.hero-panel, .panel, .module-card, .path-card, .logic-card, .system-card, .combo-card,
.maturity-card, .audience-step, .internal-jump-panel, .advisor-principle, .detail-box {
  background: rgba(255,255,255,.72);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  color: var(--ink);
}
.hero-panel {
  position: relative;
  padding: clamp(24px, 3.2vw, 36px);
  overflow: hidden;
  max-width: 500px;
  margin-right: auto;
}
.hero-panel:before, .panel:before, .closing-panel:before {
  content: '';
  position: absolute;
  inset: -44% -42% auto auto;
  width: 330px;
  height: 330px;
  background: radial-gradient(circle, rgba(90,166,182,.22), transparent 64%);
  pointer-events: none;
}
.orbit {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 260px;
  border-radius: 22px;
  background:
    radial-gradient(circle, rgba(90,166,182,.12), transparent 62%),
    rgba(247,248,246,.86);
  border: 1px solid var(--line);
  overflow: hidden;
}
.orbit:before, .orbit:after {
  content: "";
  position: absolute;
  border: 1px solid rgba(23,50,77,.14);
  border-radius: 50%;
  width: 260px;
  height: 260px;
}
.orbit:after { width: 180px; height: 180px; border-color: rgba(90,166,182,.35); }
.orbit-core {
  position: relative;
  z-index: 2;
  text-align: center;
  font-size: clamp(1.35rem, 2.3vw, 1.85rem);
  line-height: 1.05;
  font-weight: 800;
  letter-spacing: -.04em;
  color: var(--blue);
}
.dot { position: absolute; width: 14px; height: 14px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 22px rgba(90,166,182,.36); }
.dot-1 { top: 48px; left: 50%; }
.dot-2 { right: 74px; bottom: 80px; background: var(--sage); }
.dot-3 { left: 70px; bottom: 98px; background: var(--warm); }
.metric-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; margin-top: 16px; }
.metric { padding: 16px; border-radius: 18px; background: rgba(247,248,246,.9); border: 1px solid var(--line); }
.metric b { display: block; font-size: 1.25rem; color: var(--blue); }
.metric span { color: var(--muted); font-size: .78rem; }

.pathway { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 18px; margin-top: 34px; margin-bottom: 28px; }
.path-card { position: relative; padding: 26px; overflow: hidden; cursor: pointer; transition: transform .18s ease, border-color .18s ease, background .18s ease; box-shadow: none; }
.path-card:before, .module-card:before { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; background: var(--phase-color, var(--blue)); }
.path-card:hover { transform: translateY(-3px); }
.path-card.active { border-color: color-mix(in srgb, var(--phase-color, var(--blue)), transparent 35%); background: rgba(255,255,255,.92); }
.stage, .tag, .cell-tag, .decision-badge, .level-label {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(23,50,77,.06);
  color: var(--blue-2);
  font-size: .75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.path-card h3, .module-card h3, .panel h3 { margin: 14px 0 10px; font-size: 1.3rem; line-height: 1.15; color: var(--ink); }
.path-card p, .module-card p, .panel p, .combo-card p, .system-card p, .logic-card p, .maturity-card p, .audience-step p { color: var(--muted); margin: 0; }
.mini-list { padding-left: 18px; color: var(--muted); font-size: .92rem; margin: 12px 0 0; }

.two-col { display: grid; grid-template-columns: minmax(0,1.08fr) minmax(0,.92fr); gap: 18px; align-items: start; }
.panel, .matrix-panel, .closing-panel, .maturity-panel { position: relative; padding: clamp(24px, 3.2vw, 34px); overflow: hidden; }
.panel-intro { margin: 8px 0 18px; color: var(--muted); font-size: .96rem; }
.audience-ladder { display: grid; grid-template-columns: 1fr; gap: 14px; position: relative; }
.audience-ladder:before { content: ""; position: absolute; left: 28px; top: 24px; bottom: 24px; width: 2px; background: linear-gradient(to bottom, rgba(90,166,182,.32), rgba(157,184,170,.34)); }
.audience-step { position: relative; display: grid; grid-template-columns: 56px 1fr; gap: 16px; align-items: start; padding: 18px; box-shadow: none; background: rgba(247,248,246,.75); }
.step-marker { position: relative; z-index: 1; display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; margin: 6px auto 0; background: var(--blue); box-shadow: 0 0 0 7px rgba(23,50,77,.08); }
.level-label { margin-bottom: 8px; }
.level-no { font-family: var(--mono); color: var(--quiet); }
.decision-item { display: grid; grid-template-columns: 1fr auto; gap: 18px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.decision-item:last-child { border-bottom: 0; }
.decision-item b { color: var(--ink); }
.decision-item p { margin-top: 6px; color: var(--muted); }
.decision-badge { align-self: start; text-align: center; flex-direction: column; min-width: 142px; color: var(--blue); }
.decision-badge small { color: var(--quiet); font-weight: 650; letter-spacing: 0; text-transform: none; }

.matrix-head { display: flex; justify-content: space-between; align-items: start; gap: 26px; margin-bottom: 22px; }
.matrix-legend { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; }
.legend-item { display: inline-flex; border-radius: 999px; padding: 7px 10px; background: rgba(23,50,77,.06); color: var(--blue); font-size: .74rem; font-weight: 800; }
.matrix-table { display: grid; grid-template-columns: minmax(210px,.9fr) repeat(3, minmax(0,1fr)); gap: 10px; }
.matrix-header, .matrix-rowhead, .matrix-cell {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(247,248,246,.8);
  padding: 14px;
  color: var(--ink);
  text-decoration: none;
  text-align: left;
}
.matrix-header { cursor: pointer; font-weight: 800; color: var(--blue); }
.matrix-rowhead .code, .cell-code, .code { font-family: var(--mono); font-weight: 800; color: var(--blue-2); }
.matrix-rowhead b, .matrix-cell b { display: block; color: var(--ink); margin: 4px 0; }
.matrix-rowhead p, .matrix-cell p { margin: 0 0 10px; color: var(--muted); font-size: .9rem; }
.matrix-cell { position: relative; transition: transform .18s ease, border-color .18s ease, background .18s ease; }
.matrix-cell:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--phase-color, var(--blue)), transparent 40%); background: #fff; }
.matrix-cell.dimmed { opacity: .62; }
.matrix-cell.active { opacity: 1; background: #fff; }

.closing-panel { max-width: var(--max); margin-left: auto; margin-right: auto; background: rgba(255,255,255,.72); border: 1px solid var(--line); border-radius: 30px; box-shadow: var(--shadow); }
.closing-panel h2 { margin-bottom: 22px; }
.closing-panel p { color: var(--muted); max-width: 820px; }
.closing-claim { font-weight: 760; color: var(--blue) !important; font-size: 1.13rem; }

.internal-jump-panel, .advisor-grid { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 24px; align-items: center; padding: 28px; max-width: var(--max); margin: 34px auto 0; }
.card-system, .logic-grid, .combination-grid, .maturity-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 14px; }
.system-card, .logic-card, .combo-card, .maturity-card { padding: 18px; border-radius: 20px; box-shadow: none; background: rgba(255,255,255,.72); }
.system-card b, .logic-card b, .combo-card b, .maturity-card b { display: block; margin-bottom: 8px; color: var(--ink); }
.module-matrix-toolbar { margin-top: 42px; margin-bottom: 18px; }
.module-matrix-toolbar h3 { font-size: clamp(1.6rem, 2.6vw, 2.3rem); color: var(--ink); }
.internal-matrix-shell { padding: 24px; background: rgba(255,255,255,.72); border: 1px solid var(--line); border-radius: 26px; box-shadow: var(--shadow); overflow-x: auto; }
.internal-matrix-actions { display: flex; justify-content: space-between; gap: 18px; align-items: center; margin-bottom: 16px; color: var(--muted); }
.filter-btn { border: 1px solid var(--line); background: rgba(247,248,246,.88); color: var(--blue); border-radius: 999px; padding: 10px 14px; font-weight: 700; cursor: pointer; }
.internal-module-matrix { display: grid; grid-template-columns: minmax(210px,.8fr) repeat(3, minmax(220px,1fr)); gap: 10px; min-width: 940px; }
.matrix-corner, .internal-phase-head, .internal-row-head, .internal-module-cell {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(247,248,246,.88);
  padding: 14px;
  color: var(--ink);
  text-align: left;
}
.internal-phase-head, .internal-row-head, .internal-module-cell { cursor: pointer; }
.internal-phase-head { font-weight: 800; color: var(--blue); }
.internal-phase-head span { display: block; color: var(--quiet); font-size: .78rem; font-weight: 600; margin-top: 4px; }
.internal-row-head b, .internal-module-cell b { display: block; color: var(--ink); }
.internal-row-head small, .internal-module-cell small, .internal-module-cell p { color: var(--muted); }
.internal-phase-head.active, .internal-row-head.active, .internal-module-cell.active { background: #fff; border-color: var(--line-strong); }
.internal-module-cell.dimmed { opacity: .44; }
.advisor-grid { grid-template-columns: minmax(0,1.1fr) minmax(280px,.62fr); align-items: stretch; padding: 0; background: transparent; border: 0; box-shadow: none; }
.advisor-copy { max-width: none; margin: 0; }
.advisor-copy p + p { margin-top: 14px; }
.advisor-principle { padding: 28px; box-shadow: var(--shadow); background: var(--blue); color: #fff; }
.advisor-principle h3, .advisor-principle p { color: #fff; }
.maturity-card span { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--blue); color: #fff; font-family: var(--mono); font-weight: 800; margin-bottom: 12px; }

.module-dialog {
  width: min(980px,92vw);
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--bg);
  color: var(--ink);
  box-shadow: 0 30px 110px rgba(16,20,25,.24);
  padding: 0;
}
.module-dialog::backdrop { background: rgba(16,20,25,.46); backdrop-filter: blur(4px); }
.dialog-close { position: absolute; top: 14px; right: 18px; width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--line); background: rgba(255,255,255,.86); color: var(--ink); font-size: 24px; cursor: pointer; }
.dialog-inner { padding: 34px; }
.dialog-header { padding-right: 48px; }
.detail-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; margin-top: 22px; }
.detail-box { padding: 18px; box-shadow: none; background: rgba(255,255,255,.76); }
.timeline { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: 10px; margin-top: 12px; }
.step { padding: 12px; border-radius: 16px; background: rgba(247,248,246,.88); border: 1px solid var(--line); font-size: .84rem; }
.step b { display: block; color: var(--blue); margin-bottom: 4px; }

.footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 32px clamp(20px, 4vw, 58px) 42px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: .88rem;
}
.footer a { text-decoration: none; }
.footer a:hover { color: var(--ink); }

@media (max-width: 1120px) {
  .nav { display: none; }
  .hero, .two-col, .advisor-grid, .internal-jump-panel { grid-template-columns: 1fr; }
  .hero-panel { max-width: none; margin: 0; }
  .pathway, .card-system, .logic-grid, .combination-grid, .maturity-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .matrix-table { grid-template-columns: 1fr; }
  .matrix-table > div:first-child { display: none; }
  .matrix-header { display: none; }
}
@media (max-width: 720px) {
  .topbar { align-items: flex-start; }
  .brand { flex-direction: column; gap: 2px; align-items: flex-start; }
  .pathway, .metric-grid, .card-system, .logic-grid, .combination-grid, .maturity-grid, .detail-grid, .timeline { grid-template-columns: 1fr; }
  .footer { flex-direction: column; }
  .section { padding-left: 18px; padding-right: 18px; }
}
.brand > span:not(.brand-text) { color: var(--blue-2); }


/* v5.7 mobile navigation patch for AI Activation Framework */
.mobile-menu { display: none; }
.mobile-menu summary { list-style: none; }
.mobile-menu summary::-webkit-details-marker { display: none; }
.mobile-menu-panel { display: none; }
@media (max-width: 1120px) {
  .topbar { position: sticky; top: 0; z-index: 80; }
  .mobile-menu { display: block; margin-left: auto; position: relative; }
  .mobile-menu summary {
    cursor: pointer;
    user-select: none;
    border: 1px solid rgba(23,50,77,.22);
    border-radius: 999px;
    padding: 9px 14px;
    color: var(--blue);
    background: rgba(255,255,255,.74);
    font-weight: 760;
    font-size: .92rem;
    line-height: 1;
  }
  .mobile-menu[open] .mobile-menu-panel {
    display: grid;
    position: absolute;
    right: 0;
    top: calc(100% + 12px);
    width: min(330px, calc(100vw - 40px));
    gap: 2px;
    padding: 14px;
    background: rgba(247,248,246,.98);
    border: 1px solid var(--line);
    border-radius: 20px;
    box-shadow: 0 24px 70px rgba(18,31,47,.16);
  }
  .mobile-menu-panel a {
    text-decoration: none;
    color: var(--blue);
    font-weight: 680;
    padding: 10px 8px;
    border-radius: 12px;
  }
  .mobile-menu-panel a:hover { background: rgba(23,50,77,.06); }
}


/* v5.10 bilingual language switch */
.framework-lang { display:flex; align-items:center; gap:8px; font-family:var(--mono); font-size:.74rem; color:var(--quiet); white-space:nowrap; }
.framework-lang a { text-decoration:none; color:var(--muted); }
.framework-lang a.active { color:var(--ink); font-weight:800; }
@media (max-width:1120px){ .framework-lang{ display:none; } }
.mobile-lang { display:flex; gap:8px; align-items:center; border-top:1px solid var(--line); margin-top:6px; padding-top:8px; color:var(--quiet); font-family:var(--mono); font-size:.78rem; }