:root {
  --primary: #1E3A8A;
  --accent: #10B981;
  --highlight: #F59E0B;
  --light: #F8FAFC;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: #1F2937;
}

/* Navbar */
.navbar {
  background: white;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 48px;
  height: 48px;
  background: var(--primary);
  color: white;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 1.8rem;
}

.logo h1 {
  font-size: 1.65rem;
  color: var(--primary);
  font-weight: 700;
}

.nav-links a {
  margin: 0 1.2rem;
  text-decoration: none;
  color: #374151;
  font-weight: 500;
  transition: color 0.3s;
}

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

.btn-primary {
  background: var(--accent);
  color: white;
  border: none;
  padding: 12px 28px;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
}

.btn-primary:hover {
  background: #059669;
  transform: translateY(-2px);
}

/* Hero */
.hero {
  background: linear-gradient(rgba(30, 58, 138, 0.88), rgba(30, 58, 138, 0.92)), 
              url('https://picsum.photos/id/1015/2000/1200') center/cover no-repeat;
  color: white;
  padding: 160px 20px 100px;
  text-align: center;
}

.hero-content h2 {
  font-size: 3.2rem;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.highlight {
  color: var(--accent);
}

.hero-subtitle {
  font-size: 1.35rem;
  max-width: 700px;
  margin: 0 auto 2.5rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.big-btn {
  padding: 18px 36px;
  font-size: 1.3rem;
}

.btn-secondary {
  border: 2px solid white;
  color: white;
  padding: 18px 36px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s;
}

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

.trust-badges {
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  margin-top: 3rem;
  font-size: 1.1rem;
}

/* Sections */
.section {
  padding: 100px 20px;
}

.bg-light {
  background: var(--light);
}

.container {
  max-width: 1280px;
  margin: 0 auto;
}

.section-title {
  text-align: center;
  font-size: 2.6rem;
  color: var(--primary);
  margin-bottom: 3rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text {
  font-size: 1.2rem;
  color: #4B5563;
  margin-bottom: 2rem;
}

.features li {
  margin: 1rem 0;
  font-size: 1.15rem;
}

.check {
  color: var(--accent);
  margin-right: 10px;
}

.image-container img {
  width: 100%;
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Courses */
.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.course-card {
  background: white;
  padding: 2.5rem 2rem;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
  transition: all 0.4s;
  text-align: center;
}

.course-card:hover {
  transform: translateY(-12px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.course-icon {
  font-size: 3.5rem;
  margin-bottom: 1rem;
}

.course-card h4 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--primary);
}

.btn-outline {
  width: 100%;
  padding: 14px;
  border: 2px solid var(--accent);
  color: var(--accent);
  background: transparent;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 1.5rem;
}

/* Program & Testimonials */
.program-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.program-step {
  background: white;
  padding: 2.5rem;
  border-radius: 20px;
  text-align: center;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.06);
}

.highlight {
  background: var(--accent);
  color: white;
}

.step-number {
  font-size: 3.5rem;
  font-weight: bold;
  margin-bottom: 1rem;
  opacity: 0.9;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.testimonial-card {
  background: white;
  padding: 2.5rem;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
}

/* Final CTA */
.final-cta {
  background: var(--primary);
  color: white;
  text-align: center;
  padding: 120px 20px;
}

.final-cta h3 {
  font-size: 2.8rem;
  margin-bottom: 1rem;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.7);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background: white;
  max-width: 520px;
  width: 90%;
  border-radius: 20px;
  padding: 2.5rem;
  position: relative;
}

.close-btn {
  position: absolute;
  top: 15px;
  right: 25px;
  font-size: 2rem;
  background: none;
  border: none;
  cursor: pointer;
  color: #6b7280;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
}

.form-group input, .form-group select {
  width: 100%;
  padding: 16px;
  border: 2px solid #e5e7eb;
  border-radius: 12px;
  font-size: 1rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.submit-btn {
  width: 100%;
  padding: 18px;
  font-size: 1.25rem;
  margin-top: 1rem;
}