body {
  margin: 0;
  font-family: Inter, sans-serif;
  background: #f7f1e8;
  color: #1f1f1f;
}

/* HEADER */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  background: white;
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand h1 {
  font-family: "Cormorant Garamond", serif;
  margin: 0;
}

/* NAV */
.site-nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.tab-btn {
  border: 1px solid #ccc;
  background: transparent;
  padding: 6px 12px;
  border-radius: 20px;
  cursor: pointer;
}

.tab-btn.active {
  background: #4b2142;
  color: white;
  border-color: #4b2142;
}

/* HERO */
.hero {
  position: relative;
  height: 60vh;
  overflow: hidden;
  text-align: center;
  color: white;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s;
  background-size: cover;
  background-position: center;
}

.hero-slide:nth-child(1) { background-image: url('https://images.unsplash.com/photo-1500530855697-b586d89ba3ee'); }
.hero-slide:nth-child(2) { background-image: url('https://images.unsplash.com/photo-1519167758481-83f550bb49b3'); }
.hero-slide:nth-child(3) { background-image: url('https://images.unsplash.com/photo-1511285560929-80b456fea0bc'); }

.hero-slide.active {
  opacity: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 120px;
}

/* COUNTDOWN */
.countdown {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-top: 20px;
}

/* SECTIONS */
.tab-section {
  display: none;
  padding: 40px;
  max-width: 900px;
  margin: auto;
}

.tab-section.active {
  display: block;
}

/* RSVP */
.rsvp-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 300px;
}

.rsvp-form input,
.rsvp-form select {
  padding: 10px;
  border: 1px solid #ccc;
}

.rsvp-form button {
  padding: 10px;
  background: #4b2142;
  color: white;
  border: none;
  cursor: pointer;
}

/* MOBILE */
@media (max-width: 768px) {
  .site-nav {
    flex-direction: column;
  }
}