:root {
  --color-bg: #f5f0e8;
  --color-card: #fffdf7;
  --color-primary: #5c7a4e;
  --color-primary-dark: #48613d;
  --color-accent: #c17f3a;
  --color-text: #3b2f2f;
  --color-border: #ddd5c0;
}

body {
  background-color: var(--color-bg);
  background-image:
    radial-gradient(circle at 20% 20%, rgba(255,255,255,0.45), transparent 20%),
    radial-gradient(circle at 80% 10%, rgba(255,255,255,0.35), transparent 18%),
    radial-gradient(circle at 50% 80%, rgba(255,255,255,0.3), transparent 25%);
  color: var(--color-text);
  font-family: 'Lato', sans-serif;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

.hero-section {
  position: relative;
  z-index: 2;
}

.hero-icons {
  font-size: 2rem;
}

.hero-title,
.form-title,
.success-title {
  font-family: 'Playfair Display', serif;
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-primary);
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--color-accent);
  font-weight: 700;
}

.hero-details {
  color: #6d5d56;
  line-height: 1.7;
}

.rsvp-card {
  background-color: var(--color-card);
  border-radius: 24px;
}

.form-title {
  color: var(--color-primary);
  font-size: 2rem;
}

.form-subtitle {
  color: #6d5d56;
}

.form-label {
  font-weight: 700;
  color: var(--color-text);
}

.form-control {
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 0.85rem 1rem;
  background-color: #fff;
}

.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 0.2rem rgba(92, 122, 78, 0.15);
}

.attendance-options {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.attendance-btn {
  border: 1px solid var(--color-border);
  background: #fff;
  color: var(--color-text);
  border-radius: 14px;
  padding: 0.9rem 1.2rem;
  font-weight: 700;
  flex: 1;
  min-width: 200px;
}

.btn-check:checked + .attendance-btn {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.submit-btn {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  border-radius: 14px;
  padding: 0.9rem 1rem;
  font-weight: 700;
}

.submit-btn:hover,
.submit-btn:focus {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}

.success-icon {
  font-size: 3rem;
}

.success-text {
  color: #6d5d56;
}

.background-leaf {
  position: fixed;
  opacity: 0.12;
  pointer-events: none;
  z-index: 1;
}

.leaf-1 {
  top: 40px;
  left: 30px;
  font-size: 4rem;
}

.leaf-2 {
  top: 180px;
  right: 40px;
  font-size: 3.5rem;
}

.leaf-3 {
  bottom: 60px;
  left: 50px;
  font-size: 4rem;
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.3rem;
  }

  .attendance-options {
    flex-direction: column;
  }

  .attendance-btn {
    width: 100%;
  }
}