:root {
  --bg: #f0f0f0;
  --surface: #ffffff;
  --text: #1a1a1a;
  --muted: #5e6064;
  --line: #d4d8da;
  --brand: #00505a;
  --brand-strong: #003d44;
  --accent: #a8b12a;
  --shadow: 0 14px 40px rgba(0, 33, 37, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Manrope", sans-serif;
  color: var(--text);
  background: linear-gradient(150deg, #eef2f3 0%, #f8f8f8 55%, #eceff0 100%);
}

.bg-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 8% -5%, rgba(0, 80, 90, 0.14), transparent 30%),
    radial-gradient(circle at 92% 14%, rgba(168, 177, 42, 0.16), transparent 34%);
  z-index: -1;
}

.container {
  width: min(1080px, calc(100% - 2rem));
  margin: 1.5rem auto 2rem;
}

.site-header {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow);
  margin-bottom: 1rem;
  padding: 1rem 1.2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
}

.brand-logo {
  width: auto;
  height: 42px;
}

.brand-tag {
  margin: 0;
  color: var(--brand);
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-bottom: 1rem;
}

.top-nav a {
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.45rem 0.85rem;
  color: var(--brand);
  background: #fff;
  font-weight: 800;
  font-size: 0.92rem;
}

.top-nav a.active {
  background: var(--brand);
  color: #fff;
  border-color: var(--brand);
}

.hero {
  background: linear-gradient(125deg, var(--brand) 0%, #0a646f 70%);
  color: #fff;
  border: 1px solid var(--brand-strong);
  border-radius: 20px;
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.kicker {
  margin: 0;
  color: #d6de79;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.hero h1 {
  margin: 0.3rem 0 0;
  font-size: clamp(1.6rem, 3.4vw, 2.5rem);
}

.intro {
  margin: 0.8rem 0 0;
  color: rgba(255, 255, 255, 0.88);
  max-width: 74ch;
}

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

.year-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1rem;
  box-shadow: var(--shadow);
}

.year-card h2 {
  margin: 0;
  font-size: 1.05rem;
  color: var(--brand);
}

.year-card p {
  color: var(--muted);
  margin: 0.45rem 0 1rem;
}

.btn {
  display: inline-block;
  text-decoration: none;
  border-radius: 10px;
  border: 1px solid var(--brand);
  background: var(--brand);
  color: #fff;
  padding: 0.55rem 0.8rem;
  font-weight: 700;
  font: inherit;
}

.btn:hover {
  background: var(--brand-strong);
  border-color: var(--brand-strong);
}

.card-actions {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.project-lock {
  display: grid;
  gap: 0.55rem;
}

.project-lock label {
  font-weight: 700;
  font-size: 0.92rem;
}

.project-lock input {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.55rem 0.7rem;
  font: inherit;
  min-width: 220px;
}

.project-lock input:focus {
  outline: 2px solid rgba(168, 177, 42, 0.45);
  outline-offset: 1px;
  border-color: var(--accent);
}

.lock-message {
  margin: 0;
  color: var(--brand);
  font-weight: 700;
  min-height: 1.2rem;
}

.hidden {
  display: none;
}

.panel {
  margin-top: 1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1rem;
  box-shadow: var(--shadow);
}

.panel h2 {
  margin: 0;
  color: var(--brand);
}

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

@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .brand-logo {
    height: 36px;
  }

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