:root {
  --bg: #f6f7f8;
  --card: #ffffff;
  --text: #1b1f24;
  --muted: #5c6670;
  --accent: #0f6b6f;
  --border: #d9dee3;
  --nav-surface: #f2f6f7;
  --nav-hover: #e3eff0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Source Sans Pro", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #f8fafb 0%, #eef3f5 100%);
  line-height: 1.55;
}

header {
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid #d3dbe0;
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav-wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 20px;
  display: flex;
  gap: 20px;
  align-items: center;
  flex-wrap: wrap;
}

.brand {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.01em;
  color: var(--accent);
  margin-right: auto;
  text-decoration: none;
}

nav {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  padding: 6px;
  background: var(--nav-surface);
  border: 1px solid #d9e3e6;
  border-radius: 0;
}

nav a {
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  font-size: 14px;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 8px 14px;
  border-radius: 0;
  transition: color 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
}

nav a:hover {
  background: var(--nav-hover);
  color: var(--accent);
}

nav a.active {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 6px 14px rgba(15, 107, 111, 0.24);
}

main {
  max-width: 1100px;
  margin: 36px auto;
  padding: 0 20px 40px;
}

.hero,
.section,
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 0;
  padding: 24px;
  margin-bottom: 18px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(240px, 0.75fr);
  gap: 24px;
  align-items: start;
}

.hero-copy p:last-of-type {
  margin-bottom: 0;
}

.hero-photo-wrap {
  border: 1px solid var(--border);
  background: #ffffff;
  padding: 8px;
}

.hero-photo {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: center top;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.25;
}

h1 {
  font-size: 34px;
}

h2 {
  font-size: 24px;
  margin-bottom: 10px;
}

h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

p,
li {
  color: var(--text);
}

.muted {
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 14px;
}

.quick-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.quick-links a {
  text-decoration: none;
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 8px 12px;
  border-radius: 0;
  font-weight: 600;
  font-size: 14px;
}

.quick-links a:hover {
  background: #e9f6f7;
}

ul,
ol {
  padding-left: 22px;
}

footer {
  max-width: 1100px;
  margin: 0 auto 26px;
  padding: 0 20px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 700px) {
  h1 {
    font-size: 28px;
  }

  .nav-wrap {
    gap: 12px;
    padding-top: 12px;
    padding-bottom: 12px;
  }

  nav {
    width: 100%;
    flex-wrap: wrap;
    padding: 6px;
    gap: 6px;
  }

  nav a {
    min-height: 36px;
    padding: 7px 12px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .hero-photo-wrap {
    max-width: 320px;
  }
}