/* ===== CSS VARIABLES ===== */
:root {
  /* Colors */
  --primary-white: #FFFFFF;
  --tropical-green: #2ECC71;
  --tropical-blue: #3498DB;
  --tropical-teal: #1ABC9C;
  --accent-orange: #F39C12;
  --dark-footer: #1A252F;
  --text-dark: #2C3E50;
  --text-light: #7F8C8D;
  --whatsapp-green: #25D366;
  --shadow-soft: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-hover: 0 8px 30px rgba(0,0,0,0.12);
  
  /* Typography */
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Montserrat', sans-serif;
  --font-size-base: 16px;
  --line-height: 1.6;
  
  /* Spacing */
  --container-max: 1200px;
  --section-padding: 80px 0;
  --section-padding-mobile: 50px 0;
  --card-padding: 24px;
  
  /* Border */
  --border-radius: 12px;
  --border-radius-sm: 8px;
  
  /* Transitions */
  --transition: all 0.3s ease;
}

/* ===== RESET & BASE ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: var(--font-size-base);
}

body {
  font-family: var(--font-body);
  color: var(--text-dark);
  background: var(--primary-white);
  line-height: var(--line-height);
  overflow-x: hidden;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

p { margin-bottom: 1rem; }

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

a:hover { color: var(--tropical-teal); }

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ===== UTILITIES ===== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: var(--section-padding);
}

.section--mobile {
  padding: var(--section-padding-mobile);
}

.text-center { text-align: center; }
.text-white { color: var(--primary-white); }

.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--border-radius-sm);
  font-weight: 500;
  font-family: var(--font-heading);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  text-align: center;
}

.btn-primary {
  background: var(--accent-orange);
  color: var(--primary-white);
}

.btn-primary:hover {
  background: #e67e22;
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn-secondary {
  background: transparent;
  color: var(--tropical-blue);
  border: 2px solid var(--tropical-blue);
}

.btn-secondary:hover {
  background: var(--tropical-blue);
  color: var(--primary-white);
}

.btn-whatsapp {
  background: var(--whatsapp-green);
  color: white;
}

.btn-whatsapp:hover {
  background: #1ebc57;
  transform: translateY(-2px);
}

/* ===== CARD ===== */
.card {
  background: var(--primary-white);
  border-radius: var(--border-radius);
  padding: var(--card-padding);
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.75rem; }
  .section { padding: var(--section-padding-mobile); }
}

@media (max-width: 480px) {
  h1 { font-size: 1.75rem; }
  .btn { width: 100%; }
}

/* Fix sticky header overlap on anchor scroll */
#booking {
  scroll-margin-top: 100px; /* Adjust based on header height */
}

/* Error state for form inputs */
.form-group input.error,
.form-group select.error,
.form-group textarea.error {
  border-color: #e74c3c !important;
}

/* Logo Container */
.logo {
  display: flex;
  align-items: center;
  height: 60px; /* Sedikit lebih tinggi untuk menampung lingkaran */
}

/* Logo Image */
.logo img {
  height: 100%;
  width: auto;
  max-width: 200px; /* Batasi lebar */
  object-fit: contain;
  transition: var(--transition);
}

/* Hover Effect */
.logo:hover img {
  opacity: 0.9;
  transform: scale(1.02);
}

/* Mobile: Kecilkan proporsional */
@media (max-width: 768px) {
  .logo { height: 50px; }
  .logo img { max-width: 160px; }
}

@media (max-width: 480px) {
  .logo { height: 45px; }
  .logo img { max-width: 140px; }
}