:root {
  --ink: #1f2933;
  --muted: #60707d;
  --paper: #fbfaf6;
  --sheet: #ffffff;
  --line: #d9e0e4;
  --navy: #20304a;
  --teal: #147a7e;
  --coral: #d35d47;
  --gold: #ba812e;
  --mist: #e8f1f3;
  --wash: #f1ede4;
  --max: 1160px;
  --radius: 8px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(32, 48, 74, .05) 1px, transparent 1px),
    linear-gradient(rgba(32, 48, 74, .045) 1px, transparent 1px),
    var(--paper);
  background-size: 44px 44px;
  line-height: 1.55;
}

body.menu-open { overflow: hidden; }

a { color: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(251, 250, 246, .94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.topbar {
  max-width: var(--max);
  margin: 0 auto;
  min-height: 72px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--navy);
  font-weight: 800;
  text-decoration: none;
  letter-spacing: .02em;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: white;
  background: var(--navy);
  font-size: 14px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.nav a {
  padding: 8px 10px;
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
  border-radius: 8px;
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--navy);
  background: var(--mist);
}

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: var(--sheet);
  border-radius: 8px;
  padding: 9px 11px;
  color: var(--navy);
  font-weight: 800;
}

.hero {
  min-height: calc(100vh - 72px);
  display: grid;
  align-items: end;
  position: relative;
  overflow: hidden;
  background: #dfe9ed;
}

.hero img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(251, 250, 246, .08), rgba(251, 250, 246, .94) 78%, var(--paper));
}

.hero-panel {
  position: relative;
  z-index: 1;
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto 8vh;
  color: var(--navy);
}

.eyebrow {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  margin: 0 0 16px;
  padding: 6px 10px;
  color: var(--teal);
  background: rgba(255, 255, 255, .76);
  border: 1px solid rgba(20, 122, 126, .22);
  border-radius: 8px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

h1 {
  max-width: 880px;
  margin: 0;
  font-size: clamp(46px, 8vw, 94px);
  line-height: .96;
  letter-spacing: 0;
}

.lead {
  max-width: 720px;
  margin: 22px 0 0;
  color: #3c4b57;
  font-size: clamp(18px, 2.2vw, 24px);
}

.hero-actions,
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 11px 18px;
  border-radius: 8px;
  border: 1px solid var(--navy);
  color: var(--navy);
  background: rgba(255, 255, 255, .74);
  text-decoration: none;
  font-weight: 800;
}

.button.primary {
  color: #fff;
  background: var(--navy);
}

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

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 72px 24px;
}

.section.tight { padding-top: 34px; }

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 410px);
  gap: 40px;
  align-items: end;
  margin-bottom: 30px;
}

.section-kicker {
  color: var(--teal);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .1em;
  text-transform: uppercase;
}

h2 {
  margin: 8px 0 0;
  color: var(--navy);
  font-size: clamp(30px, 4vw, 54px);
  line-height: 1.04;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 10px;
  color: var(--navy);
  font-size: 22px;
  line-height: 1.15;
  letter-spacing: 0;
}

.section-copy {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.brief-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 18px;
}

.brief,
.card,
.note,
.signup,
.page-hero,
.toc {
  background: var(--sheet);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 16px 36px rgba(32, 48, 74, .08);
}

.brief {
  padding: 30px;
  display: grid;
  align-content: center;
}

.brief p { max-width: 68ch; }

.brief-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.brief-list li {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfc;
}

.number {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  color: #fff;
  background: var(--teal);
  font-weight: 900;
}

.platform-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.linkedin-panel {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(320px, 1.05fr);
  gap: 18px;
}

.linkedin-copy,
.linkedin-signals {
  background: var(--sheet);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 16px 36px rgba(32, 48, 74, .08);
}

.linkedin-copy {
  padding: 30px;
  border-left: 6px solid var(--coral);
}

.linkedin-copy p {
  color: var(--muted);
  font-size: 17px;
}

.linkedin-signals {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  background: var(--line);
}

.linkedin-signals div {
  min-height: 150px;
  padding: 22px;
  background: #fbfcfc;
}

.linkedin-signals b {
  display: block;
  margin-bottom: 10px;
  color: var(--navy);
  font-size: 18px;
}

.linkedin-signals span {
  color: var(--muted);
}

.card {
  min-height: 300px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  text-decoration: none;
}

.card:hover {
  border-color: var(--teal);
  transform: translateY(-2px);
}

.card.linkedin-card {
  border-color: rgba(211, 93, 71, .55);
  background: linear-gradient(180deg, #fff, #fff7f3);
}

.card.linkedin-card h3 {
  color: var(--coral);
}

.score {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-top: auto;
  color: var(--coral);
  font-weight: 900;
}

.score strong { font-size: 42px; line-height: 1; }

.tag-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tag {
  padding: 5px 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--muted);
  background: #fbfcfc;
  font-size: 12px;
  font-weight: 800;
}

.flow {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  align-items: stretch;
}

.flow-step {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--sheet);
}

.flow-step b {
  display: block;
  color: var(--navy);
  margin-bottom: 8px;
}

.matrix {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 8px;
  background: var(--sheet);
  box-shadow: 0 16px 36px rgba(32, 48, 74, .08);
}

.matrix th,
.matrix td {
  padding: 15px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.matrix th {
  color: #fff;
  background: var(--navy);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.matrix tr:last-child td { border-bottom: 0; }

.risk-high { color: var(--coral); font-weight: 900; }
.risk-med { color: var(--gold); font-weight: 900; }
.risk-low { color: var(--teal); font-weight: 900; }

.page-wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 42px 24px 82px;
}

.page-hero {
  padding: 42px;
  margin-bottom: 24px;
}

.page-hero h1 {
  font-size: clamp(38px, 6vw, 70px);
  max-width: 900px;
}

.content-layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.toc {
  position: sticky;
  top: 96px;
  padding: 18px;
}

.toc a {
  display: block;
  padding: 8px 0;
  color: var(--muted);
  text-decoration: none;
  font-weight: 750;
}

.toc a:hover { color: var(--navy); }

.article {
  display: grid;
  gap: 18px;
}

.note {
  padding: 24px;
}

.note.accent {
  border-left: 6px solid var(--teal);
}

.note.warn {
  border-left: 6px solid var(--coral);
}

.note p:last-child { margin-bottom: 0; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.stat {
  padding: 18px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fbfcfc;
}

.stat b {
  display: block;
  color: var(--navy);
  font-size: 24px;
}

.plain-list {
  margin: 0;
  padding-left: 20px;
}

.plain-list li { margin: 8px 0; }

.signup {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: center;
  margin-top: 34px;
  padding: 24px;
}

.signup form {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

input[type="email"] {
  min-width: 250px;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
}

button {
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--navy);
  border-radius: 8px;
  background: var(--navy);
  color: #fff;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.form-msg {
  min-height: 22px;
  color: var(--teal);
  font-size: 14px;
}

.cookie {
  position: fixed;
  left: 18px;
  right: 18px;
  bottom: 18px;
  z-index: 40;
  max-width: 760px;
  margin: 0 auto;
  display: none;
  grid-template-columns: 1fr auto;
  gap: 18px;
  padding: 18px;
  color: var(--ink);
  background: var(--sheet);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 22px 60px rgba(32, 48, 74, .18);
}

.cookie.show { display: grid; }

.cookie p { margin: 4px 0 0; color: var(--muted); }

.cookie-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.cookie-actions button.secondary {
  color: var(--navy);
  background: #fff;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, .52);
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 28px 24px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 14px;
}

.footer-inner a {
  color: var(--navy);
  text-decoration: none;
  font-weight: 800;
  margin-right: 14px;
}

@media (max-width: 900px) {
  .menu-toggle { display: inline-flex; }
  .nav {
    position: fixed;
    inset: 72px 0 auto 0;
    display: none;
    padding: 14px 24px 22px;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
  }
  body.menu-open .nav { display: grid; }
  .section-head,
  .brief-grid,
  .content-layout,
  .linkedin-panel,
  .signup {
    grid-template-columns: 1fr;
  }
  .toc { position: static; }
  .platform-grid,
  .flow,
  .stat-grid,
  .linkedin-signals {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .topbar { padding: 0 16px; }
  .hero-panel { width: calc(100% - 32px); margin-bottom: 42px; }
  h1 { font-size: 44px; }
  .section,
  .page-wrap { padding-left: 16px; padding-right: 16px; }
  .page-hero { padding: 28px 22px; }
  .platform-grid,
  .flow,
  .stat-grid,
  .linkedin-signals {
    grid-template-columns: 1fr;
  }
  .matrix { display: block; overflow-x: auto; }
  .cookie,
  .cookie.show { grid-template-columns: 1fr; }
}