:root {
  --bg: #f6f7f8;
  --surface: #ffffff;
  --ink: #0f1388;
  --text: #1a1a1a;
  --muted: #5e6169;
  --accent: #006f1d;
  --line: #d4d6db;
  --link: #0f1388;
  --radius: 12px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Avenir Next", "Avenir", "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
}

.site-header,
main,
.site-footer {
  width: min(920px, calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--ink);
}

.brand-logo {
  width: 44px;
  height: 44px;
  border-radius: 6px;
  object-fit: cover;
}

.brand-text {
  font-size: 1.2rem;
  font-weight: 700;
}

.main-nav {
  display: flex;
  gap: 0.8rem;
}

.main-nav a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 600;
  padding: 0.3rem 0.2rem;
  border-bottom: 2px solid transparent;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

main {
  padding-bottom: 1.6rem;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 0.9rem;
}

.hero {
  border-left: 6px solid var(--accent);
}

h1,
h2,
h3 {
  color: var(--ink);
  margin: 0 0 0.35rem;
  line-height: 1.2;
}

h1 {
  font-size: clamp(1.7rem, 4.5vw, 2.2rem);
}

h2 {
  font-size: clamp(1.2rem, 3.2vw, 1.5rem);
}

h3 {
  font-size: 1.1rem;
}

p {
  margin: 0;
  line-height: 1.55;
}

ul {
  margin: 0.35rem 0 0;
  padding-left: 1.1rem;
}

li {
  margin-bottom: 0.22rem;
}

.cards {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 0.55rem;
}

.card {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.75rem;
  background: #fff;
}

.card-link {
  display: block;
  text-decoration: none;
  color: inherit;
  transition: border-color 120ms ease, box-shadow 120ms ease;
}

.card-link:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(0, 111, 29, 0.1);
}

.project-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.75rem;
  background: #fff;
}

.project-row-link {
  text-decoration: none;
  color: inherit;
  transition: border-color 120ms ease, box-shadow 120ms ease;
}

.project-row-link:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(0, 111, 29, 0.1);
}

.list-panel {
  display: grid;
  gap: 0.7rem;
}

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

a.card-link,
a.project-row-link {
  color: inherit;
}

.inline-link {
  color: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 8px;
  padding: 0.35rem 0.62rem;
  font-weight: 600;
  font-size: 0.9rem;
  white-space: nowrap;
}

.btn {
  display: inline-block;
  text-decoration: none;
  color: #fff;
  background: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 8px;
  padding: 0.45rem 0.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  margin-top: 0.7rem;
}

.btn:hover {
  background: #090d61;
}

.site-footer {
  color: var(--muted);
  font-size: 0.9rem;
  padding: 0.45rem 0 1rem;
}

@media (max-width: 760px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }

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

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