/* lake.love marketing site — self-contained, no external assets. */
:root {
  --ink: #16323f;
  --ink-soft: #52707d;
  --line: #dce7ec;
  --bg: #f4f8fa;
  --card: #ffffff;
  --blue: #0e7490;
  --blue-deep: #155e75;
  --accent: #06b6d4;
  --hero-top: #0b4a5f;
  --hero-bottom: #0e7490;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
}
a { color: var(--blue); }

.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.6rem 1.5rem;
  background: rgba(255,255,255,0.92); backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.brand {
  font-size: 1.3rem; font-weight: 700; letter-spacing: -0.02em;
  color: var(--ink); text-decoration: none;
}
.brand-dot { color: var(--accent); }
.topnav { display: flex; align-items: center; gap: 1.1rem; }
.topnav a { text-decoration: none; color: var(--ink); font-size: 0.95rem; }

.btn {
  display: inline-block; border: 1px solid var(--line); border-radius: 8px;
  padding: 0.5rem 1.1rem; font-size: 0.95rem; cursor: pointer;
  background: var(--card); color: var(--ink) !important; text-decoration: none;
}
.btn-primary { background: var(--blue); border-color: var(--blue); color: #fff !important; }
.btn-primary:hover { background: var(--blue-deep); }
.btn-ghost { background: transparent; border-color: currentColor; }
.btn-lg { padding: 0.75rem 1.5rem; font-size: 1.05rem; }

.hero {
  position: relative;
  background:
    linear-gradient(180deg, rgba(8, 52, 68, 0.78), rgba(10, 78, 100, 0.72)),
    url("/img/hero_dock.jpg") center 65% / cover no-repeat,
    linear-gradient(180deg, var(--hero-top), var(--hero-bottom));
  color: #eefaff;
  padding: 5rem 1.5rem 7rem;
}
.hero-inner { max-width: 780px; margin: 0 auto; text-align: center; }
.hero h1 {
  font-size: clamp(1.9rem, 4.5vw, 3rem);
  letter-spacing: -0.02em; margin: 0 0 1rem;
}
.hero-sub { font-size: 1.1rem; color: #cdeef7; max-width: 680px; margin: 0 auto 2rem; }
.hero-actions { display: flex; gap: 0.9rem; justify-content: center; flex-wrap: wrap; }
.hero .btn-ghost { color: #eefaff !important; }
.wave { position: absolute; left: 0; right: 0; bottom: -1px; width: 100%; height: 60px; display: block; }

.section { max-width: 1000px; margin: 0 auto; padding: 3.5rem 1.5rem; }
.section h2 { font-size: 1.7rem; letter-spacing: -0.02em; margin-top: 0; }
.section-lead { color: var(--ink-soft); max-width: 720px; }
.section-alt {
  max-width: none;
  background: var(--card);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.section-alt > * { max-width: 1000px; margin-left: auto; margin-right: auto; }
.center { text-align: center; margin-top: 2rem; }

.cards {
  display: grid; gap: 1.1rem; margin-top: 1.6rem;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 1.4rem 1.5rem;
}
.section-alt .card { background: var(--bg); }
.card h3 { margin-top: 0; }
.stat-card { text-align: center; }
.stat { font-size: 1.9rem; font-weight: 700; color: var(--blue); letter-spacing: -0.02em; }
.stat-label { color: var(--ink-soft); font-size: 0.95rem; margin-top: 0.3rem; }

.photo-band {
  background:
    linear-gradient(rgba(8, 52, 68, 0.45), rgba(8, 52, 68, 0.45)),
    url("/img/band_boat.jpg") center 60% / cover no-repeat;
  padding: 6rem 1.5rem;
  text-align: center;
}
.photo-band p {
  margin: 0; color: #ffffff; font-size: clamp(1.3rem, 2.6vw, 1.8rem);
  font-weight: 600; letter-spacing: -0.01em;
  text-shadow: 0 1px 8px rgba(0,0,0,0.45);
}

.science-flex { display: flex; gap: 2rem; align-items: flex-start; margin-top: 1.4rem; }
.sat-figure {
  flex: 0 0 240px; margin: 0;
}
.sat-figure img {
  width: 100%; height: 420px; object-fit: cover; object-position: center 30%;
  border-radius: 14px; border: 1px solid var(--line); display: block;
}
.sat-figure figcaption { font-size: 0.8rem; color: var(--ink-soft); margin-top: 0.5rem; }
.science-main { flex: 1; }
.science-main .section-lead { margin-top: 0; }
@media (max-width: 760px) {
  .science-flex { flex-direction: column; }
  .sat-figure { flex-basis: auto; width: 100%; }
  .sat-figure img { height: 260px; }
}

.card-photo { padding: 0; overflow: hidden; }
.card-img {
  width: 100%; height: 190px; object-fit: cover; display: block;
  border-bottom: 1px solid var(--line);
}
.card-photo .card-body { padding: 1.1rem 1.5rem 1.4rem; }

.footer {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  flex-wrap: wrap;
  max-width: 1000px; margin: 0 auto; padding: 2rem 1.5rem 3rem;
  color: var(--ink-soft); font-size: 0.9rem;
}
.footer nav { display: flex; gap: 1.1rem; }

@media (max-width: 640px) {
  .topnav a:not(.btn) { display: none; }
}