/* Reset & Base */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  color: #1a1a2e;
  line-height: 1.7;
  background: #fff;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
}

/* Container */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Nav */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  transition: box-shadow 0.3s, background 0.3s;
}

.nav.scrolled {
  box-shadow: 0 2px 24px rgba(0, 0, 0, 0.1);
  background: rgba(255, 255, 255, 0.97);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-size: 1.3rem;
  font-weight: 700;
  color: #1a1a2e;
}

.logo span {
  color: #2563eb;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: #2563eb;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 14px 32px;
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  color: #fff;
  border-radius: 10px;
  font-weight: 600;
  font-size: 1rem;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
}

.btn-sm {
  padding: 8px 20px;
  font-size: 0.85rem;
  box-shadow: none;
}

.btn-outline {
  background: transparent;
  color: #2563eb;
  border: 2px solid #2563eb;
  box-shadow: none;
}

.btn-outline:hover {
  background: #2563eb;
  color: #fff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

/* Hero */
.hero {
  padding: 140px 0 90px;
  background: linear-gradient(160deg, #0f172a 0%, #1e3a5f 40%, #2563eb 100%);
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(96, 165, 250, 0.2) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  max-width: 750px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-photo {
  width: 240px;
  height: 240px;
  border-radius: 50%;
  object-fit: cover;
  border: 5px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  margin: 0 auto 28px;
  display: block;
}

.hero-tag {
  display: inline-block;
  padding: 10px 24px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 24px;
  letter-spacing: 0.3px;
}

.hero h1 {
  font-size: 2.6rem;
  margin-bottom: 10px;
  color: #fff;
}

.hero-exp {
  font-size: 1.15rem;
  color: #93c5fd;
  margin-bottom: 16px;
  font-weight: 500;
}

.hero-sub {
  font-size: 1.1rem;
  color: #cbd5e1;
  margin-bottom: 28px;
  max-width: 550px;
  margin-left: auto;
  margin-right: auto;
}

.hero-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.95rem;
  color: #94a3b8;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero .btn {
  background: #fff;
  color: #1e3a5f;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
}

.hero .btn:hover {
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.3);
}

.hero .btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
  box-shadow: none;
}

.hero .btn-outline:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: #fff;
}

/* Sections */
.section {
  padding: 80px 0;
}

.section-alt {
  background: #f8fafc;
}

.section h2 {
  font-size: 1.85rem;
  text-align: center;
  margin-bottom: 48px;
  position: relative;
  color: #0f172a;
}

.section h2::after {
  content: '';
  display: block;
  width: 50px;
  height: 3px;
  background: linear-gradient(90deg, #2563eb, #7c3aed);
  margin: 14px auto 0;
  border-radius: 2px;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.about-text p {
  color: #475569;
}

.about-text h3 {
  font-size: 1.05rem;
  margin: 24px 0 8px;
  color: #2563eb;
}

.about-text ul {
  padding-left: 20px;
}

.about-text ul li {
  list-style: disc;
  margin-bottom: 4px;
  color: #475569;
}

.highlights h3 {
  margin-bottom: 16px;
  color: #0f172a;
}

.highlight-cards {
  display: grid;
  gap: 14px;
}

.card {
  background: #fff;
  padding: 20px;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: transform 0.2s, box-shadow 0.2s;
  border: 1px solid #f1f5f9;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
}

.card-icon {
  font-size: 1.5rem;
}

.card p {
  color: #475569;
}

/* Courses & Options */
.courses-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.course-card {
  background: #fff;
  padding: 36px;
  border-radius: 16px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
  border-top: 4px solid #2563eb;
  transition: transform 0.2s, box-shadow 0.2s;
}

.course-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.course-card h3 {
  margin-bottom: 18px;
  font-size: 1.2rem;
}

.course-card ul {
  padding-left: 20px;
}

.course-card ul li {
  list-style: disc;
  margin-bottom: 10px;
  color: #475569;
}

/* Approach */
.approach-grid {
  max-width: 640px;
  margin: 0 auto;
  display: grid;
  gap: 14px;
}

.approach-item {
  display: flex;
  align-items: center;
  gap: 14px;
  background: #fff;
  padding: 18px 24px;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  transition: transform 0.2s;
  border: 1px solid #f1f5f9;
}

.approach-item:hover {
  transform: translateX(4px);
}

.approach-item span {
  font-size: 1.3rem;
}

.approach-item p {
  color: #475569;
}

/* Outcomes */
.outcomes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.outcome {
  background: linear-gradient(135deg, #eff6ff, #e0e7ff);
  padding: 24px;
  border-radius: 14px;
  font-weight: 500;
  text-align: center;
  font-size: 1rem;
  transition: transform 0.2s;
  border: 1px solid #dbeafe;
}

.outcome:hover {
  transform: translateY(-2px);
}

/* Testimonials */
.testimonial {
  background: #fff;
  padding: 36px;
  border-radius: 16px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
  border-left: 4px solid #2563eb;
  transition: transform 0.2s;
}

.testimonial:hover {
  transform: translateY(-2px);
}

.testimonial p {
  font-style: italic;
  font-size: 1.08rem;
  margin-bottom: 14px;
  color: #374151;
  line-height: 1.8;
}

.testimonial cite {
  font-size: 0.9rem;
  color: #6b7280;
  font-style: normal;
  font-weight: 600;
}

/* Contact */
.section-contact {
  background: linear-gradient(160deg, #0f172a 0%, #1e3a5f 60%, #2563eb 100%);
  color: #fff;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.section-contact::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -15%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(96, 165, 250, 0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.section-contact h2 {
  color: #fff;
}

.section-contact h2::after {
  background: linear-gradient(90deg, #60a5fa, #a78bfa);
}

.contact-content {
  position: relative;
  z-index: 1;
}

.contact-content p {
  font-size: 1.1rem;
  color: #cbd5e1;
  margin-bottom: 32px;
}

.contact-content strong {
  color: #fff;
}

.contact-details {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.contact-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  padding: 14px 28px;
  border-radius: 10px;
  font-weight: 500;
  transition: background 0.2s, transform 0.2s;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-item:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}

/* Footer */
.footer {
  padding: 24px 0;
  text-align: center;
  font-size: 0.85rem;
  color: #64748b;
  background: #0f172a;
}

/* Floating WhatsApp */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 99;
  width: 60px;
  height: 60px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  transition: transform 0.2s, box-shadow 0.2s;
  animation: pulse-wa 2s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.5);
}

@keyframes pulse-wa {

  0%,
  100% {
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  }

  50% {
    box-shadow: 0 4px 24px rgba(37, 211, 102, 0.6);
  }
}

/* Tablet */
@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    padding: 20px;
    gap: 16px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    text-align: center;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    font-size: 1rem;
    padding: 4px 0;
  }

  /* Hero mobile */
  .hero {
    padding: 100px 0 50px;
  }

  .hero-photo {
    width: 160px;
    height: 160px;
    border-width: 4px;
  }

  .hero-tag {
    font-size: 0.85rem;
    padding: 8px 18px;
  }

  .hero h1 {
    font-size: 1.6rem;
  }

  .hero-exp {
    font-size: 1rem;
  }

  .hero-sub {
    font-size: 0.95rem;
    margin-bottom: 20px;
  }

  .hero-info {
    font-size: 0.85rem;
    margin-bottom: 24px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }

  .hero-actions .btn {
    width: 100%;
    max-width: 280px;
    text-align: center;
  }

  /* Sections mobile */
  .section {
    padding: 50px 0;
  }

  .section h2 {
    font-size: 1.45rem;
    margin-bottom: 32px;
  }

  /* Grids to single column */
  .about-grid,
  .courses-grid,
  .outcomes {
    grid-template-columns: 1fr;
  }

  .courses-grid {
    gap: 16px;
  }

  .course-card {
    padding: 24px;
  }

  .course-card h3 {
    font-size: 1.05rem;
  }

  /* Approach */
  .approach-grid {
    max-width: 100%;
  }

  .approach-item {
    padding: 14px 16px;
  }

  /* Outcomes */
  .outcomes {
    gap: 12px;
  }

  .outcome {
    padding: 18px;
    font-size: 0.9rem;
  }

  /* Testimonials */
  .testimonial {
    padding: 24px;
  }

  .testimonial p {
    font-size: 0.95rem;
  }

  /* Contact */
  .contact-details {
    flex-direction: column;
    align-items: center;
    gap: 12px;
  }

  .contact-item {
    width: 100%;
    max-width: 280px;
    justify-content: center;
    padding: 14px 20px;
  }

  .contact-content p {
    font-size: 0.95rem;
  }

  /* Cards */
  .card {
    padding: 16px;
  }

  .highlight-cards {
    gap: 10px;
  }
}

/* Small phones */
@media (max-width: 380px) {
  .hero-photo {
    width: 130px;
    height: 130px;
  }

  .hero h1 {
    font-size: 1.35rem;
  }

  .hero-tag {
    font-size: 0.78rem;
    padding: 6px 14px;
  }

  .section h2 {
    font-size: 1.3rem;
  }
}