:root {
  --white: #ffffff;
  --sky-50: #f5faff;
  --sky-100: #e8f3fd;
  --sky-200: #d3e8fa;
  --sky-300: #a9d3f3;
  --blue: #2f78b5;
  --blue-dark: #235f93;
  --ink: #14304a;
  --muted: #566f86;
  --line: #dbe8f4;
  --radius: 16px;
  --max: 1080px;
  --read: 700px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--blue); }
a:hover { color: var(--blue-dark); }

h1, h2, h3 {
  color: var(--ink);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: 1.2rem; letter-spacing: -0.01em; }

h1 em, h2 em {
  font-family: Georgia, "Times New Roman", serif;
  font-style: italic;
  font-weight: 400;
  color: var(--blue);
}

p { margin: 0 0 1em; }

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

.sr-only {
  position: absolute;
  left: -9999px;
}

/* Announcement bar */
.announce {
  background: var(--blue);
  color: #fff;
  text-align: center;
  font-size: 0.9rem;
  padding: 9px 16px;
}
.announce a { color: #fff; text-decoration: underline; text-underline-offset: 3px; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
}
.site-header .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
}
.brand:hover { color: var(--ink); }
.brand::before {
  content: "";
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background:
    radial-gradient(circle at center, var(--blue) 0 3px, transparent 3px),
    repeating-radial-gradient(circle at center, var(--sky-300) 0 2px, #fff 2px 6px);
  box-shadow: 0 0 0 1px var(--sky-200);
}
.site-header nav {
  display: flex;
  align-items: center;
  gap: 22px;
}
.site-header nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}
.site-header nav a:hover { color: var(--blue); }
.site-header nav a:last-child {
  background: var(--blue);
  color: #fff;
  padding: 8px 18px;
  border-radius: 999px;
}
.site-header nav a:last-child:hover { background: var(--blue-dark); color: #fff; }

/* Sections */
section { padding: 72px 0; }
.alt { background: var(--sky-50); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--sky-300);
  box-shadow: 0 0 0 3px var(--sky-100);
}
.section-head { max-width: 620px; margin-bottom: 36px; }
.section-head p { color: var(--muted); }
.center { text-align: center; margin-left: auto; margin-right: auto; }
.center .eyebrow { justify-content: center; }

/* Hero */
.hero {
  padding: 72px 0 80px;
  background: linear-gradient(180deg, var(--sky-100) 0%, #ffffff 100%);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.hero p.lead {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 32em;
}
.hero-art svg {
  display: block;
  width: 100%;
  height: auto;
  max-width: 420px;
  margin: 0 auto;
}

/* Buttons */
.button {
  display: inline-block;
  background: var(--blue);
  color: #fff;
  padding: 13px 24px;
  border-radius: 999px;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 500;
  border: 1px solid var(--blue);
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s;
}
.button:hover { background: var(--blue-dark); border-color: var(--blue-dark); color: #fff; }
.button.ghost { background: #fff; color: var(--blue); }
.button.ghost:hover { background: var(--sky-100); color: var(--blue-dark); }

.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.small { font-size: 0.85rem; color: var(--muted); margin-top: 14px; }

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 22px;
  box-shadow: 0 1px 2px rgba(20, 48, 74, 0.04);
}
.card .icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--sky-100);
  display: grid;
  place-items: center;
  font-size: 1.3rem;
  margin-bottom: 16px;
}
.card h3 { margin-bottom: 0.35em; }
.card p { color: var(--muted); font-size: 0.95rem; margin: 0; }

/* Newsletter */
.newsletter {
  background: var(--sky-100);
  border-radius: 28px;
  padding: 56px 32px;
  text-align: center;
}
.newsletter p { color: var(--muted); max-width: 30em; margin-left: auto; margin-right: auto; }
.signup {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 20px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
  justify-content: center;
}
.signup input[type="email"] {
  flex: 1 1 240px;
  padding: 13px 18px;
  font-size: 1rem;
  font-family: inherit;
  color: var(--ink);
  border: 1px solid var(--sky-300);
  border-radius: 999px;
  background: #fff;
}
.signup input[type="email"]:focus {
  outline: 2px solid var(--blue);
  outline-offset: 1px;
}
.newsletter .small { margin-bottom: 0; }

/* Pull quote */
.pullquote {
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--ink);
  border-left: 3px solid var(--sky-300);
  padding-left: 22px;
  margin: 32px 0 0;
  max-width: 560px;
}
.pullquote em { font-family: Georgia, "Times New Roman", serif; color: var(--blue); }

/* About layout */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.about-grid p { color: var(--muted); }

/* Tiles */
.tiles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.tile {
  border-radius: 20px;
  padding: 30px 26px 34px;
  background: linear-gradient(160deg, var(--sky-100), var(--sky-200));
  min-height: 210px;
}
.tile .eyebrow { margin-bottom: 26px; }
.tile p { color: var(--muted); margin: 0; font-size: 0.95rem; }

/* Blog list and featured post */
.feature {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  border: 1px solid var(--line);
  border-radius: 22px;
  overflow: hidden;
  background: #fff;
  color: inherit;
  text-decoration: none;
}
.feature:hover { color: inherit; border-color: var(--sky-300); }
.feature-art {
  min-height: 240px;
  background: repeating-radial-gradient(circle at 30% 60%, var(--sky-200) 0 2px, var(--sky-50) 2px 22px);
}
.feature-body { padding: 34px; }
.feature-body h3 { font-size: 1.6rem; }
.feature-body p { color: var(--muted); }
.feature-body .more { color: var(--blue); font-weight: 500; margin: 0; }

.post-list { list-style: none; margin: 24px 0 0; padding: 0; max-width: 760px; }
.post-list li { padding: 22px 0; border-bottom: 1px solid var(--line); }
.post-list li:last-child { border-bottom: 0; }
.post-list h3 { margin-bottom: 0.2em; }
.post-list h3 a { text-decoration: none; color: var(--ink); }
.post-list h3 a:hover { color: var(--blue); }
.post-list p:last-child { margin: 0; color: var(--muted); }
.meta { font-size: 0.85rem; color: var(--muted); margin: 0 0 8px; }

/* Instagram band */
.follow { background: var(--sky-100); text-align: center; }
.follow p { color: var(--muted); max-width: 30em; margin-left: auto; margin-right: auto; }

/* Article pages */
article { padding: 64px 0 72px; }
article .wrap { max-width: var(--read); }
article h1 { font-size: clamp(2rem, 4vw, 2.8rem); margin-bottom: 0.3em; }
article p { margin: 0 0 1.3em; font-size: 1.05rem; }
article p.meta { font-size: 0.85rem; margin-bottom: 28px; }
.back { font-size: 0.95rem; text-decoration: none; }
.note {
  background: var(--sky-50);
  border-left: 3px solid var(--sky-300);
  border-radius: 0 8px 8px 0;
  padding: 14px 18px;
  font-size: 0.92rem;
  color: var(--muted);
  margin: 32px 0 0;
}
article .note { font-size: 0.92rem; }

/* Footer */
.site-footer {
  background: var(--sky-50);
  border-top: 1px solid var(--line);
  padding: 36px 0 48px;
  font-size: 0.88rem;
  color: var(--muted);
}
.site-footer p { margin: 0; max-width: 640px; }
.site-footer a { color: var(--muted); }

/* Responsive */
@media (max-width: 860px) {
  section { padding: 56px 0; }
  .hero { padding: 48px 0 56px; }
  .hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero-art svg { max-width: 280px; }
  .about-grid { grid-template-columns: 1fr; gap: 8px; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .tiles { grid-template-columns: 1fr; }
  .tile { min-height: 0; }
  .feature { grid-template-columns: 1fr; }
  .feature-art { min-height: 150px; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .cards { grid-template-columns: 1fr; }
  .newsletter { padding: 40px 20px; border-radius: 22px; }
  .site-header nav { gap: 14px; }
  .site-header nav a:not(:last-child):not([href="blog.html"]) { display: none; }
}