:root {
  --primary: #0f766e;
  --primary-dark: #115e59;
  --whatsapp: #25d366;
  --navy: #0f172a;
  --text: #374151;
  --muted: #6b7280;
  --background: #f8fafc;
  --white: #ffffff;
  --line: #e5e7eb;
  --shadow: 0 18px 45px rgba(15, 23, 42, 0.1);
  --radius: 24px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: Poppins, Arial, sans-serif;
  color: var(--text);
  background: var(--background);
  line-height: 1.55;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
.container { width: min(1180px, 92%); margin: 0 auto; }

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  line-height: 1.05;
  color: var(--navy);
  font-weight: 900;
}

.brand span {
  display: block;
  color: var(--primary);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-weight: 900;
}

.brand b { font-size: 1.1rem; }

.nav-links {
  display: flex;
  gap: 22px;
  align-items: center;
  font-weight: 800;
  color: var(--navy);
}

.nav-links a:hover { color: var(--primary); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 14px 22px;
  font-weight: 900;
  border: 2px solid transparent;
  transition: 0.2s;
  cursor: pointer;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 12px 28px rgba(15, 118, 110, 0.24);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background: var(--whatsapp);
  color: var(--white);
  box-shadow: 0 12px 28px rgba(37, 211, 102, 0.24);
}

.btn-full { width: 100%; }

.hero {
  padding: 32px 0;
  background: linear-gradient(180deg, #ffffff, #f8fafc);
}

.hero-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 30px;
  align-items: center;
}

.eyebrow {
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 8px;
}

.hero h1 {
  font-size: clamp(2.35rem, 5vw, 4.65rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
  color: var(--navy);
  margin: 0 0 14px;
}

.hero h1 span { color: var(--primary); }

.lead {
  font-size: 1.08rem;
  color: #4b5563;
  margin: 0 0 18px;
  max-width: 650px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.delivery-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 18px;
}

.delivery-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.06);
}

.delivery-card .icon { font-size: 1.55rem; margin-bottom: 4px; }
.delivery-card h3 { margin: 0; color: var(--navy); font-size: 0.96rem; line-height: 1.2; }
.delivery-card p { margin: 2px 0 0; color: var(--muted); font-size: 0.82rem; }

.hero-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.hero-image-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 26px;
  padding: 18px;
  box-shadow: var(--shadow);
  min-height: 315px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-image-card img {
  max-height: 230px;
  width: auto;
  margin: auto;
  object-fit: contain;
}

.hero-image-card h3 {
  text-align: center;
  color: var(--navy);
  font-size: 1rem;
  margin: 16px 0 0;
}

.section { padding: 42px 0; }
.section-white { background: var(--white); }

.section-title {
  max-width: 790px;
  margin: 0 auto 24px;
  text-align: center;
}

.section-title h2 {
  font-size: clamp(1.8rem, 3.6vw, 3rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
  color: var(--navy);
  margin: 0 0 10px;
}

.section-title p { margin: 0; color: var(--muted); }

.about-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 22px;
}

.panel {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 26px;
  box-shadow: 0 12px 34px rgba(15, 23, 42, 0.06);
}

.panel h1, .panel h2, .panel h3 { color: var(--navy); margin-top: 0; }
.panel p { margin: 0 0 12px; }
.highlight-panel { background: linear-gradient(180deg, #ecfdf5, #ffffff); }

.learn-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 22px;
}

.learn-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 20px;
  box-shadow: 0 10px 26px rgba(15, 23, 42, 0.05);
}

.learn-card span { color: var(--primary); font-weight: 900; letter-spacing: 0.12em; }
.learn-card h3 { color: var(--navy); font-size: 1.05rem; margin: 8px 0; }
.learn-card p { font-size: 0.94rem; margin: 0; }

.route-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.info-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 24px;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.06);
}

.info-card .icon {
  width: 48px;
  height: 48px;
  border-radius: 15px;
  background: #dcfce7;
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.15rem;
  margin-bottom: 12px;
}

.info-card h3 { color: var(--navy); margin: 0 0 8px; }
.info-card p { margin: 0; }

.video-box {
  max-width: 850px;
  margin: auto;
  aspect-ratio: 16 / 9;
  background: var(--navy);
  border-radius: 26px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.video-box iframe { width: 100%; height: 100%; border: 0; }

.course-facts {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}

.fact {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
  text-align: center;
  box-shadow: 0 8px 22px rgba(15, 23, 42, 0.05);
}

.fact span { display: block; color: var(--muted); font-size: 0.8rem; }
.fact strong { display: block; color: var(--navy); font-size: 0.95rem; margin-top: 3px; }

.calendar-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.calendar-heading {
  display: flex;
  gap: 12px;
  align-items: center;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 16px;
  margin-bottom: 14px;
  box-shadow: 0 10px 26px rgba(15, 23, 42, 0.05);
}

.calendar-heading span {
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 15px;
  background: #dcfce7;
  font-size: 1.4rem;
}

.calendar-heading h3 { margin: 0; color: var(--navy); }
.calendar-heading p { margin: 0; color: var(--muted); font-size: 0.9rem; }

.dates-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.date-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 20px;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.06);
}

.date-label {
  display: inline-block;
  color: var(--primary);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 900;
}

.date-card h3 { color: var(--navy); font-size: 1.45rem; margin: 8px 0 2px; }
.date-card p { margin: 0; color: var(--muted); }

.date-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
  margin: 14px 0;
}

.coming {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.coming-card {
  background: #f3f4f6;
  border: 1px dashed #cbd5e1;
  border-radius: 20px;
  padding: 22px;
}

.coming-card span {
  color: var(--primary);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.12em;
}

.coming-card h3 { color: var(--navy); margin: 6px 0 0; }

.faq { max-width: 850px; margin: auto; }

.faq details {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 16px 18px;
  margin-bottom: 10px;
}

.faq summary { font-weight: 900; color: var(--navy); cursor: pointer; }

.booking-panel {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 26px;
  align-items: start;
}

.form-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 26px;
  box-shadow: var(--shadow);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.form-card label { font-weight: 800; color: var(--navy); font-size: 0.9rem; }

.form-card input,
.form-card select,
.form-card textarea {
  width: 100%;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 14px;
  margin-top: 6px;
  font: inherit;
}

.full { grid-column: 1 / -1; }

.secure-list { display: grid; gap: 9px; margin: 18px 0; }

.secure-list div {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 11px 13px;
  font-weight: 800;
  color: var(--navy);
}

.payment-note {
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 13px;
  color: var(--muted);
  margin: 0;
}

.cta-box {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 26px;
  padding: 32px;
  text-align: center;
  box-shadow: var(--shadow);
}

.cta-box h2 { color: var(--navy); font-size: clamp(1.9rem, 3.5vw, 2.8rem); margin: 0 0 8px; }

.footer {
  background: var(--navy);
  color: #cbd5e1;
  padding: 42px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 24px;
}

.footer h3, .footer h4 { color: var(--white); margin-top: 0; }

.whatsapp-float {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--whatsapp);
  color: var(--white);
  font-size: 1.6rem;
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.22);
  z-index: 40;
}

.reveal { opacity: 0; transform: translateY(18px); transition: 0.55s ease; }
.reveal.show { opacity: 1; transform: none; }

@media (max-width: 1000px) {
  .hero-grid,
  .about-grid,
  .booking-panel,
  .calendar-split {
    grid-template-columns: 1fr;
  }

  .delivery-strip,
  .course-facts {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-images,
  .route-grid,
  .learn-grid,
  .coming,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .nav-links { display: none; }
  .hero { padding-top: 26px; }
  .section { padding: 34px 0; }
  .form-grid { grid-template-columns: 1fr; }
}


/* V6 booking system */
.booking-steps {
  display: grid;
  gap: 10px;
  margin: 22px 0;
}

.booking-steps div {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 12px 14px;
  font-weight: 800;
  color: var(--navy);
  display: flex;
  align-items: center;
  gap: 10px;
}

.booking-steps span {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #dcfce7;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
}

.summary-card {
  background: linear-gradient(180deg, #ecfdf5, #ffffff);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 20px;
  margin: 22px 0;
  box-shadow: 0 12px 34px rgba(15, 23, 42, 0.06);
}

.summary-card h3 {
  color: var(--navy);
  margin: 0 0 12px;
}

#bookingSummary {
  display: grid;
  gap: 8px;
}

button:disabled {
  opacity: 0.7;
  cursor: wait;
}