:root {
  --bg: #071224;
  --bg-soft: #0f1e36;
  --accent: #d4a853;
  --accent-2: #6cb5ff;
  --text: #f2f5fa;
  --muted: #9fb0c7;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 2rem;
  position: relative;
  background: linear-gradient(180deg, rgba(7,18,36,.6) 0%, rgba(7,18,36,.85) 100%),
              url('../assets/img/spb-night-bridges.avif') center/cover no-repeat;
}

.nav {
  position: absolute;
  top: 1.5rem;
  display: flex;
  gap: 2rem;
}

.nav a {
  color: var(--text);
  text-decoration: none;
  font-size: .95rem;
  opacity: .85;
  transition: opacity .2s;
}

.nav a:hover { opacity: 1; color: var(--accent); }

.hero h1 {
  font-size: clamp(2.2rem, 6vw, 4.5rem);
  font-weight: 700;
  max-width: 900px;
  margin-bottom: 1rem;
  line-height: 1.1;
}

.hero p {
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  color: var(--muted);
  max-width: 600px;
  margin-bottom: 2rem;
}

.btn {
  display: inline-block;
  padding: .9rem 2rem;
  border-radius: 50px;
  background: var(--accent);
  color: #071224;
  font-weight: 600;
  text-decoration: none;
  transition: transform .2s, box-shadow .2s;
}

.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(212,168,83,.35); }

section {
  padding: 5rem 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 2.5rem;
  text-align: center;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.card {
  background: rgba(15,30,54,.7);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 20px;
  padding: 2rem;
  backdrop-filter: blur(10px);
  transition: transform .2s, border-color .2s;
}

.card:hover { transform: translateY(-5px); border-color: var(--accent); }

.card h3 {
  font-size: 1.25rem;
  margin-bottom: .5rem;
}

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

.icon {
  width: 48px;
  height: 48px;
  color: var(--accent);
  margin-bottom: 1rem;
}

.benefits {
  list-style: none;
  margin-top: 1.5rem;
}

.benefits li {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: .75rem;
  color: var(--muted);
}

.benefits .check {
  width: 24px;
  height: 24px;
  color: var(--accent);
  flex-shrink: 0;
}

.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about img {
  width: 100%;
  border-radius: 20px;
  object-fit: cover;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}

.gallery-grid img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 16px;
}

.about ul { list-style: none; margin-top: 1rem; }

.about li {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: .75rem;
  color: var(--muted);
}

.booking {
  background: var(--bg-soft);
  border-radius: 30px;
  max-width: 600px;
  margin: 0 auto;
  padding: 3rem 2rem;
  text-align: center;
}

.booking p { color: var(--muted); margin-bottom: 1.5rem; }

form { display: grid; gap: 1rem; text-align: left; }

label { display: block; font-size: .9rem; margin-bottom: .3rem; color: var(--muted); }

input, select {
  width: 100%;
  padding: .9rem 1rem;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(0,0,0,.25);
  color: var(--text);
  font-size: 1rem;
}

input::placeholder { color: var(--muted); }

button[type="submit"] {
  background: var(--accent-2);
  color: #071224;
  border: none;
  padding: .9rem 1rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: transform .2s;
}

button[type="submit"]:hover { transform: translateY(-2px); }

#formOk {
  margin-top: 1rem;
  text-align: center;
  color: var(--accent);
}

footer {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--muted);
  border-top: 1px solid rgba(255,255,255,.08);
}

@media (max-width: 700px) {
  .about { grid-template-columns: 1fr; }
  .nav { gap: 1rem; font-size: .85rem; }
}