:root {
  --bg: #f3efe5;
  --panel: rgba(255, 251, 244, 0.88);
  --panel-strong: #fffaf0;
  --ink: #1b1a17;
  --muted: #5a564e;
  --line: rgba(27, 26, 23, 0.12);
  --accent: #1e6a52;
  --accent-soft: rgba(30, 106, 82, 0.12);
  --shadow: 0 18px 40px rgba(30, 34, 29, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(30, 106, 82, 0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(197, 149, 85, 0.16), transparent 25%),
    linear-gradient(180deg, #f6f1e7 0%, #efe8dc 100%);
  font-family: "Avenir Next", "Trebuchet MS", "Segoe UI", sans-serif;
}

a {
  color: var(--accent);
}

.page-shell {
  width: min(1320px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 56px;
}

.hero {
  padding: 36px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(255, 250, 240, 0.94), rgba(246, 241, 231, 0.88));
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.4rem, 4vw, 4.4rem);
  line-height: 0.95;
}

.hero-copy {
  max-width: 760px;
  margin: 18px 0 0;
  font-size: 1.06rem;
  line-height: 1.6;
  color: var(--muted);
}

.hero-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.hero-nav a {
  display: inline-flex;
  padding: 10px 16px;
  border-radius: 999px;
  text-decoration: none;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid rgba(27, 26, 23, 0.08);
}

.content-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 22px;
  margin-top: 24px;
  align-items: start;
}

.summary-panel {
  position: sticky;
  top: 18px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 250, 240, 0.82);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.summary-panel h2 {
  margin: 0 0 16px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.6rem;
}

.summary-card {
  padding: 16px;
  border-radius: 18px;
  background: var(--panel);
  border: 1px solid rgba(27, 26, 23, 0.08);
}

.summary-card + .summary-card {
  margin-top: 12px;
}

.summary-card h3 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.summary-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.links-card a {
  display: block;
  margin-top: 8px;
  text-decoration: none;
}

.sections {
  display: grid;
  gap: 20px;
}

.project-section {
  padding: 28px;
  border-radius: 28px;
  border: 1px solid var(--line);
  background: rgba(255, 250, 240, 0.84);
  box-shadow: var(--shadow);
}

.section-head h2 {
  margin: 4px 0 8px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.9rem, 3vw, 2.7rem);
}

.section-head p {
  margin: 0;
  max-width: 840px;
  color: var(--muted);
  line-height: 1.6;
}

.section-tag {
  margin: 0;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.info-card {
  padding: 18px;
  border-radius: 20px;
  background: var(--panel-strong);
  border: 1px solid rgba(27, 26, 23, 0.08);
}

.info-card h3 {
  margin: 0 0 10px;
  font-size: 1rem;
}

.info-card p,
.info-card li {
  color: var(--muted);
  line-height: 1.6;
}

.info-card ul,
.info-card ol {
  margin: 0;
  padding-left: 18px;
}

.question-box {
  margin-top: 18px;
  padding: 18px 20px;
  border-radius: 20px;
  border: 1px solid rgba(30, 106, 82, 0.18);
  background: var(--accent-soft);
}

.question-box summary {
  cursor: pointer;
  font-weight: 700;
}

.question-box ol {
  margin: 14px 0 0;
  padding-left: 18px;
}

.question-box li {
  line-height: 1.7;
}

@media (max-width: 980px) {
  .content-grid {
    grid-template-columns: 1fr;
  }

  .summary-panel {
    position: static;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100% - 18px, 100%);
    padding: 12px 0 28px;
  }

  .hero,
  .project-section {
    padding: 20px;
    border-radius: 22px;
  }

  .section-grid {
    grid-template-columns: 1fr;
  }
}