:root {
  color-scheme: light;
  --ink: #101114;
  --muted: #666b73;
  --soft: #f5f5f7;
  --paper: #ffffff;
  --panel: rgba(255, 255, 255, 0.82);
  --line: #dedfe4;
  --blue: #0a84ff;
  --violet: #7d5fff;
  --mint: #28c98f;
  --amber: #ffb340;
  --shadow: 0 20px 70px rgba(16, 17, 20, 0.10);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 4vw, 64px);
  background: rgba(255, 255, 255, 0.78);
  border-bottom: 1px solid rgba(222, 223, 228, 0.78);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 850;
  text-decoration: none;
}

.brand-logo {
  display: grid;
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  place-items: center;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.84);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.86), 0 8px 24px rgba(16, 17, 20, 0.10);
}

.brand-logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.08);
}

nav,
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  color: var(--muted);
  font-size: 0.95rem;
}

nav a,
.text-link,
.footer-links a {
  text-decoration: none;
}

nav a:hover,
.text-link:hover,
.footer-links a:hover {
  color: var(--blue);
  text-decoration: underline;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.86fr);
  gap: clamp(30px, 6vw, 78px);
  align-items: center;
  min-height: calc(100vh - 70px);
  padding: clamp(46px, 8vw, 108px) clamp(18px, 4vw, 64px) 42px;
  background:
    radial-gradient(circle at 12% 18%, rgba(10, 132, 255, 0.12), transparent 28%),
    radial-gradient(circle at 88% 8%, rgba(125, 95, 255, 0.12), transparent 30%),
    linear-gradient(180deg, #ffffff 0%, #f7f8fb 100%);
}

.hero-copy {
  max-width: 780px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  max-width: 820px;
  font-size: clamp(2.8rem, 7vw, 6.8rem);
  line-height: 0.96;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  max-width: 780px;
  font-size: clamp(1.9rem, 3.3vw, 3.45rem);
  line-height: 1.06;
  letter-spacing: 0;
}

h3 {
  margin: 0;
  font-size: 1.12rem;
  line-height: 1.25;
  letter-spacing: 0;
}

.hero-text,
.section-heading p,
.split p {
  color: var(--muted);
}

.hero-text {
  max-width: 690px;
  margin: 24px 0 0;
  font-size: 1.12rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 11px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-weight: 800;
  text-decoration: none;
}

.button.primary {
  border-color: var(--ink);
  background: var(--ink);
  color: white;
}

.button.secondary {
  background: rgba(255, 255, 255, 0.82);
  color: var(--ink);
}

.hero-image {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 30px 58px rgba(16, 17, 20, 0.16));
}

.ad-slot {
  display: grid;
  min-height: 74px;
  place-items: center;
  margin: 0 clamp(18px, 4vw, 64px);
  border: 1px dashed #c9ccd4;
  border-radius: 12px;
  background: #fafafa;
  color: #777d86;
  font-size: 0.9rem;
  text-align: center;
}

.section {
  padding: clamp(58px, 7vw, 100px) clamp(18px, 4vw, 64px);
}

.section-heading {
  display: grid;
  gap: 8px;
  margin-bottom: 26px;
}

.section-heading p {
  max-width: 790px;
  margin: 0;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
  padding: 6px;
  border: 1px solid rgba(255, 255, 255, 0.68);
  border-radius: 999px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.54), rgba(245, 247, 255, 0.28));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.72), 0 18px 50px rgba(16, 17, 20, 0.08);
  backdrop-filter: blur(18px) saturate(1.35);
  -webkit-backdrop-filter: blur(18px) saturate(1.35);
}

.filter-button {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: 38px;
  padding: 8px 14px;
  border: 1px solid rgba(255, 255, 255, 0.68);
  border-radius: 999px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.70), rgba(255, 255, 255, 0.28)),
    radial-gradient(circle at 20% 0%, rgba(255, 255, 255, 0.92), transparent 42%);
  color: #4b515b;
  font: inherit;
  font-weight: 750;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.78), inset 0 -12px 24px rgba(10, 132, 255, 0.06), 0 8px 22px rgba(16, 17, 20, 0.06);
  backdrop-filter: blur(16px) saturate(1.45);
  -webkit-backdrop-filter: blur(16px) saturate(1.45);
  transition: border-color 160ms ease, box-shadow 160ms ease, color 160ms ease, transform 160ms ease;
}

.filter-button::before {
  position: absolute;
  inset: 1px 10px auto;
  z-index: -1;
  height: 46%;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.70), rgba(255, 255, 255, 0));
  content: "";
  pointer-events: none;
}

.filter-button.active,
.filter-button:hover {
  border-color: rgba(10, 132, 255, 0.42);
  color: #005fcc;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.88), inset 0 -14px 28px rgba(10, 132, 255, 0.12), 0 10px 26px rgba(10, 132, 255, 0.16);
  transform: translateY(-1px);
}

.filter-button.active {
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.82), rgba(229, 242, 255, 0.52)),
    radial-gradient(circle at 18% 0%, rgba(255, 255, 255, 0.96), transparent 46%);
}

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

.article-card,
.checklist {
  padding: 22px;
  border: 1px solid rgba(222, 223, 228, 0.92);
  border-radius: 18px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.article-card {
  display: flex;
  min-height: 250px;
  flex-direction: column;
  gap: 14px;
}

.article-card.featured {
  background: #101114;
  color: white;
}

.article-card.featured p {
  color: rgba(255, 255, 255, 0.76);
}

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

.article-card .tag {
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 850;
  text-transform: uppercase;
}

.article-card.featured .tag,
.article-card.featured .text-link {
  color: #8fd0ff;
}

.article-card .text-link {
  margin-top: auto;
  color: #0066cc;
  font-weight: 850;
}

.band {
  background: var(--soft);
  border-block: 1px solid var(--line);
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  min-height: 188px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: white;
}

.steps strong {
  display: block;
  margin-bottom: 8px;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 430px);
  gap: 28px;
  align-items: start;
}

.checklist {
  min-height: auto;
}

.checklist p {
  margin: 0 0 12px;
  color: var(--ink);
  font-weight: 850;
}

.checklist ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 30px clamp(18px, 4vw, 64px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer p {
  margin: 0;
}

.article-page {
  max-width: 920px;
  margin: 0 auto;
}

.article-page h1 {
  max-width: 880px;
  margin-bottom: 20px;
  font-size: clamp(2.25rem, 5vw, 4.55rem);
}

.article-page h2 {
  margin-top: 38px;
  font-size: clamp(1.42rem, 2.4vw, 2.05rem);
}

.article-page p,
.article-page li {
  color: var(--muted);
  font-size: 1.05rem;
}

.article-page .ad-slot {
  margin: 32px 0;
}

.prompt-box {
  margin: 28px 0;
  padding: 22px;
  border: 1px solid #d7e7ff;
  border-radius: 18px;
  background: #f3f8ff;
  color: var(--ink);
}

.prompt-box p {
  margin: 0;
  color: var(--ink);
}

@media (max-width: 1120px) {
  .article-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .hero,
  .split {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .article-grid,
  .steps {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .article-grid,
  .steps {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: clamp(2.35rem, 13vw, 3.8rem);
  }

  .hero-actions .button {
    width: 100%;
  }
}