:root {
  color-scheme: light;
  --bg: #f6f4f0;
  --ink: #1f1f1f;
  --muted: #5a5a5a;
  --line: #d7d2c8;
  --accent: #0f4c5c;
  --accent-soft: #d8ebe9;
  --header-height: 72px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Trebuchet MS", "Segoe UI", "Tahoma", sans-serif;
  background: radial-gradient(circle at top, rgba(255, 255, 255, 0.7), transparent 55%),
    linear-gradient(180deg, #f7f4ef 0%, #f1ede6 55%, #ece6de 100%);
  color: var(--ink);
  line-height: 1.7;
}

.container {
  max-width: 1040px;
  padding: 0 1.5rem;
  margin: 0 auto;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(250, 248, 244, 0.94);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(6px);
  box-shadow: 0 10px 24px rgba(20, 20, 20, 0.06);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: var(--header-height);
}

.logo {
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--accent);
}

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

.nav-links a {
  text-decoration: none;
  color: var(--ink);
  padding: 0.35rem 0.6rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}

.nav-toggle {
  display: none;
}

.hamburger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #faf8f4;
  cursor: pointer;
}

.hamburger span,
.hamburger span::before,
.hamburger span::after {
  content: "";
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  position: relative;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.hamburger span::before {
  position: absolute;
  top: -7px;
}

.hamburger span::after {
  position: absolute;
  top: 7px;
}

.nav-panel {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transform: translateY(-8px);
  transition: max-height 0.3s ease, opacity 0.2s ease, transform 0.2s ease;
  border-top: 1px solid var(--line);
  background: #faf8f4;
}

.nav-panel .panel-inner {
  padding: 1rem 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.nav-panel a {
  text-decoration: none;
  color: var(--ink);
  padding: 0.45rem 0.6rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #fffdf9;
}

.nav-panel a:hover,
.nav-panel a:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-soft);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.panel-title {
  font-weight: 600;
  color: var(--muted);
}

.close-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 9px;
  border: 1px solid var(--line);
  background: #fffdf9;
  cursor: pointer;
  position: relative;
}

.close-btn::before,
.close-btn::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 2px;
  background: var(--ink);
}

.close-btn::before {
  transform: rotate(45deg);
}

.close-btn::after {
  transform: rotate(-45deg);
}

.nav-toggle:checked ~ .site-header .nav-panel {
  max-height: 320px;
  opacity: 1;
  transform: translateY(0);
}

.nav-toggle:checked ~ .site-header .hamburger span {
  transform: rotate(45deg);
}

.nav-toggle:checked ~ .site-header .hamburger span::before {
  transform: rotate(90deg);
  top: 0;
}

.nav-toggle:checked ~ .site-header .hamburger span::after {
  opacity: 0;
}

main {
  padding: 2.5rem 0 4rem;
}

section {
  padding: 3rem 0;
  border-top: 1px solid rgba(215, 210, 200, 0.7);
  scroll-margin-top: calc(var(--header-height) + 16px);
  position: relative;
  scroll-snap-align: start;
}

section:first-of-type {
  border-top: none;
  padding-top: 1rem;
}

section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 15% 0%, rgba(15, 76, 92, 0.06), transparent 55%);
  pointer-events: none;
}

h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 0.5rem;
}

h2 {
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  margin-bottom: 0.75rem;
}

h3 {
  margin-top: 0;
}

p {
  max-width: 70ch;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero {
  display: grid;
  gap: 2rem;
  align-items: center;
  margin-top: 1.5rem;
}

.hero img {
  width: 100%;
  height: auto;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: #f7f4ef;
}

.section-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1rem;
  background: #faf8f4;
  box-shadow: 0 14px 30px rgba(15, 15, 15, 0.08);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--line);
  margin-bottom: 0.75rem;
}

.card:hover,
.card:focus-within {
  transform: translateY(-4px);
  box-shadow: 0 18px 36px rgba(15, 15, 15, 0.12);
}

.meta-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.meta-list li {
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--line);
}

.meta-list li:last-child {
  border-bottom: none;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.2rem;
  border-radius: 999px;
  border: 1px solid var(--accent);
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  background: transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.button:hover,
.button:focus-visible {
  background: var(--accent-soft);
  color: var(--accent);
}

.button.primary:hover,
.button.primary:focus-visible {
  background: #0c3c49;
  color: #fff;
  box-shadow: 0 10px 18px rgba(15, 76, 92, 0.25);
}

.inline-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.inline-link:hover,
.inline-link:focus-visible {
  text-decoration: underline;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: #faf8f4;
  padding: 1.5rem 0 2rem;
}

.site-footer a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.details-block {
  margin-top: 0.75rem;
  border-top: 1px solid var(--line);
  padding-top: 0.75rem;
}

.details-block summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--accent);
}

.details-block summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

@media (max-width: 820px) {
  .nav-links {
    display: none;
  }

  .hamburger {
    display: inline-flex;
  }

  section {
    scroll-snap-align: none;
  }
}

@media (min-width: 821px) {
  body {
    scroll-snap-type: y proximity;
  }

  .nav-panel {
    display: none !important;
  }
}

@media (min-width: 900px) {
  .hero {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .card,
  .button,
  .nav-panel,
  .hamburger span,
  .hamburger span::before,
  .hamburger span::after {
    transition: none;
  }
}