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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

h1, h2, h3, h4 {
  color: var(--text-main);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 3.8rem); line-height: 1.15; margin-bottom: 1rem; }
h2 { font-size: clamp(2rem, 4vw, 2.5rem); line-height: 1.25; margin-bottom: 0.75rem;}
h3 { font-size: 1.25rem; line-height: 1.4; margin-bottom: 0.5rem;}

p {
  color: var(--text-muted);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition);
}

section {
  padding: 5rem 0; /* Memberi ruang nafas (whitespace) yang lega antar seksi */
}

.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }

.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 3.5rem auto;
}

.section-header p {
  font-size: 1.15rem;
}

.site-main {
  flex: 1;
  padding-top: 7rem; /* Kompensasi tinggi fixed header */
  padding-bottom: 5rem;
}

.spa-view {
  display: block;
  animation: fadeIn 0.4s ease-in-out;
}

.spa-view.hidden {
  display: none;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}