:root {
  --bg: #f6f3eb;
  --surface: #ffffff;
  --surface-alt: #f0ebdd;
  --ink: #0d1b2a;
  --ink-muted: #405265;
  --line: #d8d2c2;
  --primary: #0f3b73;
  --primary-soft: #e4edf8;
  --accent: #b88a1d;
  --accent-soft: #f4e3b6;
  --ok: #1f9d65;
  --shadow: 0 18px 50px rgba(13, 27, 42, 0.09);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Manrope", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    linear-gradient(120deg, rgba(15, 59, 115, 0.03), transparent 38%),
    linear-gradient(320deg, rgba(184, 138, 29, 0.09), transparent 42%),
    var(--bg);
  line-height: 1.65;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(15, 59, 115, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15, 59, 115, 0.03) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
  z-index: -1;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1160px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(246, 243, 235, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.nav-wrap {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--surface);
  background: linear-gradient(145deg, #194d8f, #0f3b73);
}

.site-nav {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.site-nav a {
  color: var(--ink-muted);
  font-size: 0.94rem;
  padding: 0.3rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.22s ease, color 0.22s ease;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--primary);
  border-color: var(--accent);
}

.menu-btn {
  display: none;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 8px;
  padding: 0.55rem 0.8rem;
  font-weight: 700;
}

.hero {
  padding: 6.1rem 0 3.8rem;
}

.hero .kicker {
  margin-bottom: 0.9rem;
}

.hero .kicker::after {
  content: "";
  width: 84px;
  height: 1px;
  opacity: 0.45;
  background: currentColor;
}

.hero-title {
  max-width: 14ch;
  line-height: 1.14;
  letter-spacing: -0.01em;
  margin: 0 0 1.35rem;
}

.hero-title-break {
  display: block;
}

.hero-title strong {
  color: var(--primary);
  font-weight: 700;
}

.hero .lead {
  margin: 0 0 1.5rem;
  max-width: 66ch;
}

.hero-audience-lock {
  font-size: 0.95rem;
  line-height: 1.6;
  color: #5a6472;
  max-width: 74ch;
}

.brief-meta {
  font-size: 0.85rem;
  color: #7a8494;
  letter-spacing: 0.02em;
  text-transform: none;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--primary);
}

.kicker::before {
  content: "";
  width: 24px;
  height: 1px;
  background: currentColor;
}

h1,
h2,
h3 {
  font-family: "Fraunces", Georgia, serif;
  line-height: 1.18;
  margin-top: 0;
}

h1 {
  font-size: clamp(2rem, 3.8vw, 3.8rem);
  margin-bottom: 0.85rem;
  max-width: 18ch;
}

.lead {
  color: var(--ink-muted);
  max-width: 74ch;
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1.2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.76rem 1.3rem;
  font-weight: 700;
  border: 0;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: var(--surface);
  background: linear-gradient(130deg, #194d8f, #0f3b73);
  box-shadow: 0 8px 22px rgba(15, 59, 115, 0.28);
}

.btn-ghost {
  color: var(--primary);
  background: var(--surface);
  border: 1px solid var(--line);
}

.hero-panel {
  margin-top: 2rem;
  padding: 1.1rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
  box-shadow: var(--shadow);
}

.hero-panel strong {
  color: var(--primary);
  font-family: "Fraunces", Georgia, serif;
  display: block;
  font-size: 1.25rem;
}

.section {
  padding: 3.2rem 0;
}

.section h2 {
  font-size: clamp(1.55rem, 2.8vw, 2.5rem);
  margin-bottom: 0.5rem;
}

.section-intro {
  margin: 0 0 1.8rem;
  max-width: 76ch;
  color: var(--ink-muted);
}

.grid-3,
.grid-2,
.grid-4 {
  display: grid;
  gap: 1rem;
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.1rem;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.card p {
  margin: 0;
  color: var(--ink-muted);
}

.badge {
  display: inline-block;
  border-radius: 999px;
  background: var(--accent-soft);
  color: #7a5a07;
  font-size: 0.76rem;
  font-weight: 700;
  padding: 0.23rem 0.62rem;
  margin-bottom: 0.7rem;
}

.protocol {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.step {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem;
  background: linear-gradient(160deg, #fff, #f6f4ed);
  box-shadow: var(--shadow);
}

.step-num {
  color: var(--accent);
  font-weight: 800;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.signal-feature {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.2rem;
  background: linear-gradient(160deg, #f2f6fc, #ffffff);
  box-shadow: var(--shadow);
}

.signal-meta {
  font-size: 0.82rem;
  color: var(--ink-muted);
  margin-bottom: 0.45rem;
}

.list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.list li {
  padding: 0.8rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
}

.metric-grid {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.metric {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface-alt);
  padding: 0.9rem;
}

.metric strong {
  display: block;
  color: var(--primary);
  font-size: 1.45rem;
  font-family: "Fraunces", Georgia, serif;
}

.cta {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.4rem;
  background: linear-gradient(135deg, #0f3b73 0%, #244f88 55%, #2f609d 100%);
  color: #f4f8ff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  box-shadow: 0 18px 45px rgba(15, 59, 115, 0.3);
}

.cta p {
  margin: 0;
  color: rgba(244, 248, 255, 0.9);
}

.cta .btn-ghost {
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.35);
}

.footer {
  margin-top: 2rem;
  border-top: 1px solid var(--line);
  padding: 2rem 0;
  color: var(--ink-muted);
}

.footer-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.institutional-ref {
  font-size: 0.92rem;
  color: var(--ink-muted);
}

.institutional-ref a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-note {
  width: 100%;
  font-size: 0.86rem;
  color: var(--ink-muted);
  opacity: 0.9;
}

.footer-note .linkedin-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-note .linkedin-link::after {
  content: "";
  width: 0.82em;
  height: 0.82em;
  background: currentColor;
  -webkit-mask: url("../icons/linkedin.svg") no-repeat center / contain;
  mask: url("../icons/linkedin.svg") no-repeat center / contain;
}

.terminal-wrap {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.2rem;
  background: linear-gradient(160deg, #f4f8ff, #ffffff);
  box-shadow: var(--shadow);
}

.terminal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-bottom: 0.9rem;
}

.terminal-head h3 {
  margin: 0;
}

.terminal-note {
  color: var(--ink-muted);
  font-size: 0.92rem;
}

.filter-stack {
  display: grid;
  gap: 0.7rem;
  margin-bottom: 1rem;
}

.filter-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-chip {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink-muted);
  border-radius: 999px;
  padding: 0.35rem 0.74rem;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
}

.filter-chip.active {
  color: var(--surface);
  background: var(--primary);
  border-color: var(--primary);
}

.terminal-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}

.signal-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.signal-card[data-hidden="true"] {
  display: none;
}

.signal-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.55rem;
}

.meta-pill {
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fbfaf6;
  color: var(--ink-muted);
  padding: 0.2rem 0.55rem;
  font-size: 0.74rem;
  font-weight: 700;
}

.meta-pill.status-active {
  background: rgba(31, 157, 101, 0.18);
  border-color: rgba(31, 157, 101, 0.45);
  color: #166c49;
}

.meta-pill.status-watch {
  background: rgba(184, 138, 29, 0.2);
  border-color: rgba(184, 138, 29, 0.42);
  color: #7a5a07;
}

.meta-pill.status-emerging {
  background: rgba(15, 59, 115, 0.14);
  border-color: rgba(15, 59, 115, 0.32);
  color: #0f3b73;
}

.meta-pill.status-structured {
  background: rgba(64, 82, 101, 0.2);
  border-color: rgba(64, 82, 101, 0.35);
  color: #33485d;
}

.signal-links {
  margin-top: 0.8rem;
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.signal-links a {
  color: var(--primary);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
  margin: 0;
  padding: 0;
}

.meta-grid div {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.72rem;
  background: var(--surface);
}

.meta-grid dt {
  margin: 0;
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-muted);
}

.meta-grid dd {
  margin: 0.3rem 0 0;
  font-weight: 700;
  color: var(--ink);
}

.signal-snapshot {
  background: linear-gradient(180deg, rgba(228, 237, 248, 0.45), var(--surface));
}

.signal-snapshot h2 {
  margin-bottom: 0.8rem;
}

.signal-node-nav h3 {
  margin-bottom: 0.65rem;
}

.signal-node-nav .card {
  height: 100%;
}

.thesis-map-shell {
  background: linear-gradient(165deg, #f3f7fd, #fff);
}

.home-pillars-map {
  background: linear-gradient(165deg, #f8fbff, #fff);
}

.home-pillars-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.65rem;
}

.home-pillar-link {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: 0.7rem 0.55rem;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--ink);
  text-align: center;
  text-decoration: none;
  box-shadow: var(--shadow);
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.home-pillar-link:hover {
  transform: translateY(-1px);
  border-color: rgba(15, 59, 115, 0.42);
  box-shadow: 0 14px 28px rgba(13, 27, 42, 0.14);
}

.thesis-map {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-template-areas:
    "n1 center n2"
    "n3 center n4"
    ". n5 .";
  gap: 0.8rem;
  align-items: stretch;
}

.map-center {
  grid-area: center;
  border: 1px solid rgba(15, 59, 115, 0.28);
  border-radius: 14px;
  background: linear-gradient(135deg, #0f3b73, #2a5d97);
  color: #f4f8ff;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 1rem;
  box-shadow: 0 14px 34px rgba(15, 59, 115, 0.26);
}

.map-center strong {
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.03rem;
  line-height: 1.3;
}

.map-node {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: 0.8rem;
  font-weight: 700;
  color: var(--ink);
  box-shadow: var(--shadow);
  display: grid;
  place-items: center;
  text-align: center;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.map-node:hover {
  transform: translateY(-1px);
  border-color: rgba(15, 59, 115, 0.45);
  box-shadow: 0 14px 28px rgba(13, 27, 42, 0.14);
}

.map-node-1 { grid-area: n1; }
.map-node-2 { grid-area: n2; }
.map-node-3 { grid-area: n3; }
.map-node-4 { grid-area: n4; }
.map-node-5 { grid-area: n5; }

.map-relations {
  margin-top: 0.9rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.6rem;
}

.map-relations a {
  border: 1px dashed rgba(15, 59, 115, 0.32);
  border-radius: 999px;
  background: #f8fbff;
  color: #234567;
  font-size: 0.84rem;
  font-weight: 700;
  padding: 0.35rem 0.65rem;
  text-align: center;
  text-decoration: none;
  transition: border-color 0.18s ease, background 0.18s ease;
}

.map-relations a:hover {
  background: #eef5ff;
  border-color: rgba(15, 59, 115, 0.5);
}

.reveal {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .hero-panel,
  .metric-grid,
  .grid-4,
  .terminal-grid,
  .meta-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid-3,
  .protocol,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .site-nav {
    position: absolute;
    right: 4vw;
    top: 72px;
    width: min(340px, 92vw);
    padding: 0.9rem;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--surface);
    display: none;
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav.open {
    display: flex;
  }

  .menu-btn {
    display: inline-flex;
  }

  .cta {
    flex-direction: column;
    align-items: flex-start;
  }

  .thesis-map {
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
      "center center"
      "n1 n2"
      "n3 n4"
      "n5 n5";
  }

  .home-pillars-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .hero {
    padding-top: 5.2rem;
  }

  h1 {
    max-width: 100%;
  }

  .hero-title {
    max-width: 100%;
  }

  .hero-panel,
  .metric-grid,
  .meta-grid {
    grid-template-columns: 1fr;
  }

  .map-relations {
    grid-template-columns: 1fr;
  }

  .home-pillars-grid {
    grid-template-columns: 1fr;
  }
}