:root {
  --bg: #f7f5ef;
  --ink: #17140f;
  --muted: #5f5648;
  --card: rgba(255, 252, 244, 0.72);
  --line: rgba(23, 20, 15, 0.14);
  --accent: #d84b2a;
  --accent-2: #0f766e;
  --max: 1040px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans SC", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 0% 0%, #fff4e7, transparent 40%),
    radial-gradient(circle at 100% 20%, #e9f3ff, transparent 35%),
    var(--bg);
  line-height: 1.7;
  overflow-x: hidden;
}

.bg-noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.2;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140' viewBox='0 0 140 140'%3E%3Cg fill='none' stroke='%2317140f' stroke-opacity='0.08'%3E%3Cpath d='M0 70h140M70 0v140'/%3E%3C/g%3E%3C/svg%3E");
}

.bg-orb {
  position: fixed;
  width: 36rem;
  height: 36rem;
  border-radius: 50%;
  filter: blur(50px);
  z-index: -1;
}

.orb-1 {
  top: -12rem;
  right: -10rem;
  background: rgba(216, 75, 42, 0.22);
}

.orb-2 {
  bottom: -16rem;
  left: -8rem;
  background: rgba(15, 118, 110, 0.2);
}

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(8px);
  background: rgba(247, 245, 239, 0.78);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 4rem;
}

.brand {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
  text-decoration: none;
  color: var(--ink);
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.2rem;
  margin: 0;
  padding: 0;
}

.nav a {
  text-decoration: none;
  color: var(--ink);
  font-weight: 500;
}

.menu-btn {
  display: none;
  border: 1px solid var(--line);
  background: transparent;
  padding: 0.4rem 0.7rem;
  font: inherit;
}

.hero {
  padding-top: 8rem;
  padding-bottom: 4rem;
}

.eyebrow {
  display: inline-block;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.25rem 0.8rem;
  color: var(--muted);
  letter-spacing: 0.08em;
  font-size: 0.75rem;
}

h1,
h2,
h3 {
  font-family: "Space Grotesk", "Noto Sans SC", sans-serif;
  line-height: 1.2;
  margin-top: 0;
}

h1 {
  margin: 1.2rem 0;
  font-size: clamp(2.2rem, 8vw, 5rem);
}

h1 span {
  display: block;
  font-size: clamp(1.1rem, 3vw, 1.9rem);
  font-weight: 500;
  color: var(--muted);
  margin-top: 0.7rem;
}

.intro {
  max-width: 42rem;
  font-size: 1.07rem;
}

.hero-actions {
  margin-top: 2rem;
  display: flex;
  gap: 0.8rem;
}

.btn {
  display: inline-block;
  text-decoration: none;
  border-radius: 999px;
  padding: 0.75rem 1.1rem;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--ink);
  color: #fff;
}

.btn-ghost {
  color: var(--ink);
  border: 1px solid var(--line);
}

.section {
  padding: 2.8rem 0;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
}

.section-head a {
  color: var(--accent-2);
  text-decoration: none;
}

.list,
.grid-two,
.timeline {
  display: grid;
  gap: 1rem;
}

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

.card {
  border: 1px solid var(--line);
  background: var(--card);
  backdrop-filter: blur(2px);
  border-radius: 1rem;
  padding: 1.1rem 1rem;
}

.card h3 {
  margin-bottom: 0.45rem;
}

.meta {
  color: var(--muted);
  margin: 0 0 0.35rem;
  font-size: 0.92rem;
}

.tag-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  padding: 0;
  margin: 0;
}

.tag-list li {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.4rem 0.8rem;
  font-size: 0.92rem;
  background: #fffefb;
}

.contact-links {
  display: flex;
  gap: 1rem;
}

.contact-links a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 700;
}

.site-footer {
  padding: 3rem 0 4rem;
  border-top: 1px solid var(--line);
  margin-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.site-footer a {
  text-decoration: none;
  color: var(--muted);
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 840px) {
  .menu-btn {
    display: inline-block;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fdfbf4;
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  .nav-links.open {
    max-height: 18rem;
  }

  .nav-links a {
    display: block;
    padding: 0.85rem 1rem;
    border-top: 1px solid var(--line);
  }

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

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