:root {
  --bg: #f4efe8;
  --surface: rgba(255, 255, 255, 0.74);
  --surface-strong: #ffffff;
  --text: #1f2430;
  --muted: #5f6778;
  --line: rgba(31, 36, 48, 0.12);
  --accent: #d36f43;
  --accent-deep: #9f4c2f;
  --accent-soft: #f0cdb5;
  --teal: #2f7066;
  --shadow: 0 22px 60px rgba(57, 38, 24, 0.12);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: "Manrope", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(211, 111, 67, 0.18), transparent 32%),
    radial-gradient(circle at top right, rgba(47, 112, 102, 0.16), transparent 28%),
    linear-gradient(180deg, #fbf7f1 0%, #f3ede4 46%, #efe8dc 100%);
}

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

.page-shell {
  width: min(1160px, calc(100% - 32px));
  margin: 24px auto 48px;
}

.hero,
.section {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
}

.hero {
  padding: 28px;
  background:
    radial-gradient(circle at 15% 20%, rgba(211, 111, 67, 0.22), transparent 28%),
    radial-gradient(circle at 90% 10%, rgba(47, 112, 102, 0.18), transparent 24%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.9), rgba(252, 244, 236, 0.92));
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 72px;
}

.brand {
  font-family: "Plus Jakarta Sans", sans-serif;
  font-size: 0.96rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.topbar-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.topbar-links a {
  color: var(--muted);
  font-weight: 600;
}

.hero-content {
  max-width: 760px;
  padding: 0 0 32px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1,
h2,
h3,
strong {
  font-family: "Plus Jakarta Sans", sans-serif;
}

h1 {
  margin: 0;
  font-size: clamp(2.7rem, 6vw, 4.8rem);
  line-height: 0.96;
  letter-spacing: -0.05em;
}

h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3.6vw, 2.8rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

h3 {
  margin: 0 0 12px;
  font-size: 1.2rem;
  letter-spacing: -0.03em;
}

.hero-copy,
.info-card p,
.project-card p,
.library-card span {
  color: var(--muted);
  line-height: 1.7;
}

.hero-copy {
  max-width: 640px;
  margin: 20px 0 0;
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
}

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

.button-secondary {
  background: rgba(255, 255, 255, 0.7);
  border-color: var(--line);
}

.section {
  margin-top: 24px;
  padding: 32px 28px;
}

.section-heading {
  max-width: 720px;
}

.intro-grid,
.project-grid,
.library-links {
  display: grid;
  gap: 18px;
  margin-top: 28px;
}

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

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

.info-card,
.project-card,
.library-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-strong);
  box-shadow: 0 18px 40px rgba(57, 38, 24, 0.06);
}

.info-card,
.project-card {
  padding: 24px;
}

.project-tag {
  display: inline-flex;
  margin-bottom: 16px;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(211, 111, 67, 0.12);
  color: var(--accent-deep);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-points {
  margin: 18px 0 22px;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.8;
}

.project-link {
  color: var(--accent-deep);
  font-weight: 800;
}

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

.library-card {
  display: block;
  padding: 22px 24px;
}

.library-card strong {
  display: block;
  margin-bottom: 8px;
  font-size: 1.05rem;
}

@media (max-width: 900px) {
  .intro-grid,
  .project-grid,
  .library-links {
    grid-template-columns: 1fr;
  }

  .topbar {
    margin-bottom: 48px;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 20px, 100%);
    margin: 10px auto 24px;
  }

  .hero,
  .section {
    padding: 22px 18px;
    border-radius: 22px;
  }

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

  .hero-copy {
    font-size: 0.98rem;
  }

  .button {
    width: 100%;
  }
}