:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --text: #172033;
  --muted: #5d6a7e;
  --line: #dfe6ef;
  --primary: #1f5eff;
  --primary-dark: #113fba;
  --accent: #ff8a1d;
  --dark: #111827;
  --dark-soft: #1f2937;
  --shadow: 0 18px 50px rgba(23, 32, 51, .10);
  --radius: 22px;
  --radius-sm: 14px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

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

img,
svg {
  max-width: 100%;
}

.container {
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(223, 230, 239, .85);
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: -.03em;
}

.logo-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  font-size: 14px;
  box-shadow: 0 12px 28px rgba(31, 94, 255, .22);
}

.logo-text {
  font-size: 24px;
  color: var(--dark);
}

.logo-text span {
  color: var(--primary);
}

.main-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 650;
}

.main-nav a:hover {
  color: var(--primary);
}

.header-cta {
  padding: 11px 18px;
  border-radius: 999px;
  background: var(--dark);
  color: #fff;
  font-weight: 750;
  font-size: 14px;
}

.header-cta:hover {
  background: var(--primary);
}

.menu-toggle {
  display: none;
  margin-left: auto;
  border: 0;
  background: transparent;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--dark);
  margin: 5px 0;
  border-radius: 3px;
}

.hero {
  padding: 76px 0 52px;
  background:
    radial-gradient(circle at 12% 10%, rgba(31, 94, 255, .14), transparent 28%),
    radial-gradient(circle at 86% 18%, rgba(255, 138, 29, .15), transparent 30%),
    linear-gradient(180deg, #fff 0%, var(--bg) 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(360px, .82fr);
  gap: 42px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: .08em;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--dark);
  line-height: 1.08;
  letter-spacing: -.04em;
}

h1 {
  max-width: 760px;
  font-size: clamp(42px, 6vw, 72px);
}

h2 {
  font-size: clamp(30px, 4vw, 46px);
}

h3 {
  font-size: 22px;
}

.hero-lead {
  max-width: 720px;
  margin: 24px 0 28px;
  color: var(--muted);
  font-size: 20px;
}

.hero-search {
  max-width: 760px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.hero-search label {
  display: block;
  margin: 0 0 10px;
  color: var(--dark);
  font-weight: 800;
}

.search-row {
  display: flex;
  gap: 10px;
}

.search-row input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 15px 16px;
  font: inherit;
  outline: 0;
}

.search-row input:focus {
  border-color: rgba(31, 94, 255, .55);
  box-shadow: 0 0 0 4px rgba(31, 94, 255, .12);
}

.search-row button {
  border: 0;
  border-radius: 14px;
  padding: 0 24px;
  color: #fff;
  background: var(--primary);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.search-row button:hover {
  background: var(--primary-dark);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 26px 0 20px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 22px;
  border-radius: 999px;
  font-weight: 850;
}

.btn-primary {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 12px 28px rgba(31, 94, 255, .22);
}

.btn-primary:hover {
  background: var(--primary-dark);
}

.btn-secondary {
  color: var(--dark);
  background: #fff;
  border: 1px solid var(--line);
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-light {
  color: var(--dark);
  background: #fff;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-tags span,
.article-labels span {
  display: inline-flex;
  align-items: center;
  padding: 7px 11px;
  border-radius: 999px;
  color: var(--muted);
  background: #fff;
  border: 1px solid var(--line);
  font-size: 13px;
  font-weight: 750;
}

.hero-panel {
  padding: 28px;
  border-radius: 30px;
  color: #d5deee;
  background:
    linear-gradient(135deg, rgba(31, 94, 255, .18), transparent),
    var(--dark);
  box-shadow: 0 24px 70px rgba(17, 24, 39, .28);
}

.panel-header {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  margin-bottom: 18px;
}

.status-dot {
  width: 11px;
  height: 11px;
  border-radius: 99px;
  background: #3ee484;
  box-shadow: 0 0 0 6px rgba(62, 228, 132, .12);
}

.code-card {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .12);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 14px;
}

.code-line + .code-line {
  margin-top: 8px;
}

.code-line span {
  color: #7fb0ff;
}

.hero-panel h2 {
  margin: 26px 0 14px;
  color: #fff;
  font-size: 31px;
}

.hero-panel p {
  margin: 0 0 18px;
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  margin-top: 10px;
}

.check-list li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #3ee484;
  font-weight: 900;
}

.section {
  padding: 74px 0;
}

.muted {
  background: #fff;
}

.section-heading {
  max-width: 680px;
  margin-bottom: 30px;
}

.card-grid {
  display: grid;
  gap: 22px;
}

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

.feature-card,
.article-card,
.module-card,
.audience-grid article {
  padding: 24px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: 0 12px 36px rgba(23, 32, 51, .05);
}

.feature-card:hover,
.article-card:hover,
.module-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  transition: .2s ease;
}

.icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  color: var(--primary);
  background: rgba(31, 94, 255, .09);
  border-radius: 15px;
  font-weight: 900;
}

.feature-card p,
.article-card p,
.module-card p,
.audience-grid p,
.modules-copy p,
.cta-box p,
.site-footer p {
  color: var(--muted);
}

.feature-card a,
.text-link {
  display: inline-flex;
  margin-top: 8px;
  color: var(--primary);
  font-weight: 850;
}

.split-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 28px;
}

.article-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr 1fr;
  gap: 22px;
}

.article-card.large {
  grid-row: span 2;
  padding: 30px;
}

.article-card h3 {
  margin: 16px 0 10px;
}

.article-card h3 a:hover,
.news-list h3 a:hover {
  color: var(--primary);
}

.article-meta {
  margin-top: 18px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.modules-section {
  color: #fff;
  background: var(--dark);
}

.modules-section h2,
.modules-section h3 {
  color: #fff;
}

.modules-layout {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 48px;
  align-items: center;
}

.modules-copy p {
  font-size: 18px;
  color: #c8d2e3;
}

.module-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.module-card {
  background: rgba(255, 255, 255, .07);
  border-color: rgba(255, 255, 255, .12);
  box-shadow: none;
}

.module-card span {
  display: inline-flex;
  margin-bottom: 13px;
  color: #8fb6ff;
  font-size: 13px;
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: .05em;
}

.module-card p {
  color: #c8d2e3;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.problem-grid a {
  display: flex;
  align-items: center;
  min-height: 74px;
  padding: 17px;
  border-radius: 16px;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--dark);
  font-weight: 800;
}

.problem-grid a:hover {
  color: var(--primary);
  border-color: rgba(31, 94, 255, .45);
  box-shadow: 0 10px 28px rgba(31, 94, 255, .08);
}

.audience-grid {
  display: grid;
  grid-template-columns: 1.35fr repeat(3, 1fr);
  gap: 20px;
}

.audience-intro {
  padding-right: 24px;
}

.news-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.news-list article {
  padding: 24px 0;
  border-top: 1px solid var(--line);
}

.news-list time {
  color: var(--primary);
  font-weight: 850;
  font-size: 14px;
}

.news-list h3 {
  margin-top: 10px;
}

.cta-section {
  padding: 28px 0 82px;
}

.cta-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 38px;
  color: #fff;
  background:
    radial-gradient(circle at 85% 20%, rgba(255, 138, 29, .32), transparent 28%),
    linear-gradient(135deg, var(--primary), #153aa3);
  border-radius: 32px;
  box-shadow: 0 24px 70px rgba(31, 94, 255, .26);
}

.cta-box h2 {
  color: #fff;
}

.cta-box p {
  max-width: 720px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, .84);
}

.cta-box .eyebrow {
  color: rgba(255, 255, 255, .78);
}

.site-footer {
  padding: 56px 0 26px;
  background: #0d1320;
  color: #cbd5e1;
}

.site-footer .logo-text {
  color: #fff;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: 38px;
}

.footer-logo {
  margin-bottom: 18px;
}

.site-footer h3 {
  margin-bottom: 14px;
  color: #fff;
  font-size: 17px;
}

.site-footer a:not(.logo) {
  display: block;
  margin: 9px 0;
  color: #cbd5e1;
}

.site-footer a:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, .1);
  font-size: 14px;
}

.footer-bottom p {
  margin: 0;
}

@media (max-width: 1050px) {
  .header-cta {
    display: none;
  }

  .main-nav {
    gap: 16px;
  }

  .hero-grid,
  .modules-layout,
  .audience-grid {
    grid-template-columns: 1fr;
  }

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

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

  .article-card.large {
    grid-row: auto;
    grid-column: span 2;
  }

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

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

@media (max-width: 760px) {
  .container {
    width: min(100% - 28px, var(--container));
  }

  .header-inner {
    min-height: 68px;
  }

  .menu-toggle {
    display: block;
  }

  .main-nav {
    position: fixed;
    top: 68px;
    left: 14px;
    right: 14px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: #fff;
    box-shadow: var(--shadow);
  }

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

  .hero {
    padding: 42px 0 34px;
  }

  h1 {
    font-size: 40px;
  }

  .hero-lead {
    font-size: 18px;
  }

  .search-row,
  .split-heading,
  .cta-box,
  .footer-bottom {
    flex-direction: column;
    align-items: stretch;
  }

  .search-row button {
    min-height: 48px;
  }

  .card-grid.four,
  .article-grid,
  .module-list,
  .problem-grid,
  .news-list,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .article-card.large {
    grid-column: auto;
  }

  .section {
    padding: 52px 0;
  }

  .hero-panel {
    padding: 22px;
  }

  .cta-box {
    padding: 28px;
  }
}