:root {
  --color-primary: #111827;
  --color-primary-light: #1f2937;
  --color-accent: #0f766e;
  --color-accent-hover: #115e59;
  --color-accent-subtle: #f0fdfa;
  --color-sand: #d97706;
  --color-sand-light: #fef3c7;
  --color-bg: #fafaf9;
  --color-surface: #ffffff;
  --color-surface-alt: #f5f5f4;
  --color-text-main: #1c1917;
  --color-text-muted: #57534e;
  --color-border: #e7e5e4;
  --color-border-light: #f5f5f4;
  --font-family: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --container-max: 1180px;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--color-bg);
  color: var(--color-text-main);
  font-family: var(--font-family);
  -webkit-font-smoothing: antialiased;
}

body {
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img, svg {
  display: block;
  max-width: 100%;
}

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

ul {
  list-style: none;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

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

/* Typography */
h1, h2, h3, h4 {
  color: var(--color-primary);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.25rem, 4vw + 1rem, 3.5rem); }
h2 { font-size: clamp(1.85rem, 2.5vw + 1rem, 2.5rem); }
h3 { font-size: 1.3rem; }
p { color: var(--color-text-muted); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}

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

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-primary);
  border-color: var(--color-border);
}
.btn-secondary:hover {
  background-color: var(--color-surface-alt);
  border-color: var(--color-text-muted);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}
.btn-outline:hover {
  background: var(--color-surface-alt);
  color: var(--color-primary);
}

.btn-block { width: 100%; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(250, 250, 249, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--color-primary);
}
.brand-logo svg { color: var(--color-accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-muted);
}
.nav-link:hover, .nav-link.active { color: var(--color-accent); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--color-primary);
}

/* Sections */
.section { padding: 5rem 0; }
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3.5rem;
}
.section-header h1, .section-header h2 { margin-bottom: 0.75rem; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background-color: var(--color-accent-subtle);
  color: var(--color-accent);
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
  border: 1px solid rgba(15, 118, 110, 0.15);
}

/* Hero Section */
.hero { padding: 4.5rem 0 3.5rem; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3.5rem;
  align-items: center;
}
.hero p { font-size: 1.15rem; margin: 1.25rem 0 2rem; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 1rem; }

.hero-visual {
  background: linear-gradient(135deg, #111827 0%, #1f2937 100%);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  color: #ffffff;
  box-shadow: var(--shadow-xl);
}
.visual-quote { font-size: 1.45rem; font-style: italic; margin-bottom: 1.5rem; color: #f3f4f6; }
.visual-tagline { font-size: 0.85rem; color: #9ca3af; margin-bottom: 1.5rem; letter-spacing: 0.05em; text-transform: uppercase; }
.visual-pills { display: flex; flex-direction: column; gap: 0.75rem; }
.visual-pill-item { display: flex; align-items: center; gap: 0.75rem; font-size: 0.95rem; color: #e5e7eb; }
.visual-pill-item svg { color: var(--color-sand); flex-shrink: 0; }

/* Stats Band */
.stats-band {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 2.25rem 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  text-align: center;
}
.stat-item .stat-number { font-size: 2.25rem; font-weight: 800; color: var(--color-primary); line-height: 1.1; }
.stat-item .stat-label { font-size: 0.875rem; font-weight: 500; color: var(--color-text-muted); margin-top: 0.25rem; }

/* Multi-Step Booking Form */
.booking-card {
  max-width: 780px;
  margin: 0 auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-xl);
}
.step-progress {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}
.progress-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}
.progress-secure {
  color: var(--color-text-muted);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.progress-bar-track { display: flex; gap: 0.5rem; height: 6px; }
.progress-bar-segment {
  flex: 1;
  background-color: var(--color-surface-alt);
  border-radius: var(--radius-full);
  transition: background-color 0.3s ease;
}
.progress-bar-segment.active { background-color: var(--color-accent); }

.form-step { display: none; }
.form-step.active { display: block; animation: fadeIn 0.3s ease; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.step-heading { font-size: 1.35rem; font-weight: 700; color: var(--color-primary); margin-bottom: 0.25rem; }
.step-desc { color: var(--color-text-muted); font-size: 0.925rem; margin-bottom: 1.75rem; }
.form-group { margin-bottom: 1.5rem; }
.form-label { display: block; font-size: 0.9rem; font-weight: 600; color: var(--color-primary); margin-bottom: 0.5rem; }

.radio-tiles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.radio-tile {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  transition: var(--transition);
}
.radio-tile:hover {
  border-color: var(--color-accent);
  background-color: var(--color-accent-subtle);
}
.radio-tile input[type="radio"] { accent-color: var(--color-accent); width: 18px; height: 18px; }
.radio-tile span { font-weight: 600; font-size: 0.95rem; color: var(--color-primary); }

.form-control {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  background-color: var(--color-surface);
  transition: var(--transition);
}
.form-control:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.12);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.step-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}
.success-screen { display: none; text-align: center; padding: 2.5rem 1rem; }
.success-screen svg { color: var(--color-accent); margin: 0 auto 1.5rem; }

/* Program Cards */
.programs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}
.program-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2.25rem;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}
.program-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(15, 118, 110, 0.3);
}
.program-audience {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}
.program-card h3 { margin-bottom: 0.75rem; }
.program-card p { font-size: 0.95rem; margin-bottom: 1.5rem; flex-grow: 1; }
.program-features {
  margin-bottom: 1.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border-light);
}
.program-features li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 0.4rem;
}
.program-features li svg { color: var(--color-accent); width: 16px; height: 16px; flex-shrink: 0; }

/* Why Us */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}
.why-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: var(--transition);
}
.why-card h3 { font-size: 1.15rem; margin-bottom: 0.5rem; color: var(--color-primary); }
.why-card p { font-size: 0.9rem; }

/* Steps */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.step-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
}
.step-num { font-size: 2rem; font-weight: 800; color: var(--color-accent); opacity: 0.3; margin-bottom: 1rem; }
.step-card h3 { font-size: 1.15rem; margin-bottom: 0.5rem; }
.step-card p { font-size: 0.9rem; }

/* Pricing */
.pricing-banner {
  background: var(--color-accent-subtle);
  border: 1px solid rgba(15, 118, 110, 0.2);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  text-align: center;
  margin-bottom: 3rem;
  font-size: 0.95rem;
  color: var(--color-accent-hover);
  font-weight: 600;
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
}
.pricing-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.pricing-card.featured {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
  position: relative;
  background-color: #ffffff;
}
.featured-tag {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-accent);
  color: #ffffff;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--radius-full);
}
.pricing-frequency { font-size: 1.1rem; font-weight: 700; color: var(--color-primary); margin-bottom: 1rem; }
.pricing-amount { font-size: 2.5rem; font-weight: 800; color: var(--color-primary); line-height: 1; }
.pricing-term { font-size: 0.8rem; color: var(--color-text-muted); margin-top: 0.25rem; margin-bottom: 1.5rem; }
.pricing-inclusions {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  margin-top: 2.5rem;
}
.inclusions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 1.25rem;
}
.inclusion-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-primary);
}
.inclusion-item svg { color: var(--color-accent); flex-shrink: 0; }

/* FAQ Accordions */
.faq-container { max-width: 840px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 0.85rem;
  background-color: var(--color-surface);
  overflow: hidden;
}
.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 1.25rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}
.faq-question svg { transition: transform 0.25s ease; flex-shrink: 0; }
.faq-question[aria-expanded="true"] svg { transform: rotate(180deg); }
.faq-answer {
  display: none;
  padding: 0 1.5rem 1.25rem;
  font-size: 0.925rem;
  line-height: 1.6;
  color: var(--color-text-muted);
}
.faq-answer.show { display: block; }

/* Floating WhatsApp */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background-color: #25d366;
  color: #ffffff;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-xl);
  z-index: 99;
  transition: var(--transition);
}
.whatsapp-float:hover { transform: scale(1.08); box-shadow: 0 10px 20px rgba(37, 211, 102, 0.35); }

/* Footer */
.site-footer {
  background-color: var(--color-primary);
  color: #e7e5e4;
  padding: 4.5rem 0 2rem;
  margin-top: auto;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.25fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}
.footer-brand p { color: #a8a29e; margin: 1rem 0 1.5rem; font-size: 0.95rem; }
.footer-col h4 { color: #ffffff; font-size: 1rem; margin-bottom: 1.25rem; }
.footer-col ul li { margin-bottom: 0.6rem; }
.footer-col ul li a { color: #a8a29e; font-size: 0.9rem; }
.footer-col ul li a:hover { color: #ffffff; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: #a8a29e;
}

/* Responsiveness */
@media (max-width: 992px) {
  .hero-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

@media (max-width: 768px) {
  .nav-links, .nav-actions .btn { display: none; }
  .mobile-toggle { display: block; }
  .nav-links.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 4.5rem;
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 1.5rem;
    gap: 1rem;
    box-shadow: var(--shadow-lg);
  }
  .radio-tiles, .form-row, .steps-grid, .stats-grid, .footer-grid { grid-template-columns: 1fr; }
  .booking-card { padding: 1.5rem; }
  .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
  .whatsapp-float { bottom: 1.25rem; right: 1.25rem; width: 52px; height: 52px; }
}