@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap");

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

:root {
  --primary: #0c99e9;
  --primary-dark: #0079c7;
  --primary-light: #e0effe;
  --secondary: #36b2f8;
  --accent: #22c55e;
  --dark: #0f172a;
  --dark-mid: #1e293b;
  --gray: #64748b;
  --light-gray: #f1f5f9;
  --white: #ffffff;
  --gradient: linear-gradient(135deg, #36b2f8 0%, #0c99e9 100%);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", system-ui, sans-serif;
  color: var(--dark);
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

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

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.1);
  z-index: 1000;
  padding: 0 5%;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
  max-width: 1400px;
  margin: 0 auto;
}

.logo h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
}

.logo h1 .highlight {
  color: var(--primary);
}

.nav-bar ul {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-bar ul li a {
  font-weight: 500;
  color: #94a3b8;
  transition: color 0.3s ease;
  font-size: 0.95rem;
}

.nav-bar ul li a:hover {
  color: var(--white);
}

.nav-cta {
  background: var(--gradient);
  color: var(--white) !important;
  padding: 8px 20px;
  border-radius: 25px;
}

.nav-cta:hover {
  opacity: 0.9;
}

.hamburger {
  display: none;
  cursor: pointer;
}

.hamburger .line {
  width: 25px;
  height: 3px;
  background: var(--white);
  margin: 5px 0;
  border-radius: 3px;
  transition: 0.3s;
}

/* Hero Section */
.hero {
  padding: 120px 5% 80px;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero-content {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.badge {
  display: inline-block;
  background: rgba(12, 153, 233, 0.15);
  color: var(--secondary);
  padding: 8px 16px;
  border-radius: 25px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1rem;
  border: 1px solid rgba(54, 178, 248, 0.2);
}

.hero-text h1 {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: var(--white);
}

.hero-text h1 .highlight {
  color: var(--secondary);
  position: relative;
}

.hero-text p {
  font-size: 1.1rem;
  color: #94a3b8;
  margin-bottom: 2rem;
  max-width: 520px;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.3s ease;
  cursor: pointer;
}

.btn-primary {
  background: var(--gradient);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(12, 153, 233, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(12, 153, 233, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

.hero-stats {
  display: flex;
  gap: 2.5rem;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--secondary);
}

.stat-label {
  font-size: 0.85rem;
  color: #64748b;
}

/* Phone Mockup */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.phone-mockup {
  width: 300px;
  height: 600px;
  background: #1e293b;
  border-radius: 40px;
  padding: 12px;
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.1);
  position: relative;
}

.phone-mockup::before {
  content: '';
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 28px;
  background: #0f172a;
  border-radius: 20px;
  z-index: 2;
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, #0f172a 0%, #1a1a2e 100%);
  border-radius: 30px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 20px;
}

.mock-video-card {
  width: 100%;
}

.mock-question {
  color: var(--white);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.4;
  margin-bottom: 8px;
}

.mock-category {
  color: var(--secondary);
  font-size: 0.75rem;
  font-weight: 500;
  margin-bottom: 16px;
}

.mock-actions {
  display: flex;
  gap: 12px;
}

.mock-action {
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

.mock-action i {
  margin-right: 4px;
}

/* Section Headers */
.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 1rem;
}

.section-header p {
  font-size: 1.1rem;
  color: var(--gray);
  max-width: 600px;
  margin: 0 auto;
}

/* Features Section */
.features {
  padding: 100px 5%;
  background: var(--white);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.feature-card {
  background: var(--white);
  padding: 2.5rem;
  border-radius: 20px;
  box-shadow: 0 5px 30px rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
  border: 1px solid #e2e8f0;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(12, 153, 233, 0.12);
  border-color: var(--primary-light);
}

.feature-icon {
  width: 70px;
  height: 70px;
  background: var(--primary-light);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.feature-icon i {
  font-size: 1.8rem;
  color: var(--primary);
}

.feature-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--dark);
}

.feature-card p {
  color: var(--gray);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* How It Works Section */
.how-it-works {
  padding: 100px 5%;
  background: var(--light-gray);
}

.steps {
  display: flex;
  justify-content: center;
  gap: 3rem;
  max-width: 1200px;
  margin: 0 auto;
}

.step {
  flex: 1;
  max-width: 350px;
  text-align: center;
  position: relative;
}

.step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 40px;
  right: -1.5rem;
  width: 3rem;
  height: 2px;
  background: var(--primary);
}

.step-number {
  width: 80px;
  height: 80px;
  background: var(--gradient);
  color: var(--white);
  font-size: 2rem;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  box-shadow: 0 10px 30px rgba(12, 153, 233, 0.3);
}

.step-content h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--dark);
}

.step-content p {
  color: var(--gray);
  font-size: 0.95rem;
}

/* Benefits Section */
.benefits {
  padding: 100px 5%;
  background: var(--white);
}

.benefits-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  max-width: 1200px;
  margin: 0 auto;
  align-items: center;
}

.benefits-text h2 {
  font-size: 2.2rem;
  font-weight: 700;
  margin-bottom: 2rem;
  color: var(--dark);
}

.benefits-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.benefits-list li {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.benefits-list li i {
  color: var(--accent);
  font-size: 1.5rem;
  margin-top: 0.2rem;
}

.benefits-list li strong {
  display: block;
  font-size: 1.1rem;
  color: var(--dark);
  margin-bottom: 0.3rem;
}

.benefits-list li p {
  color: var(--gray);
  font-size: 0.95rem;
}

.benefits-image {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.benefits-card {
  background: var(--primary-light);
  padding: 2rem;
  border-radius: 16px;
  text-align: center;
}

.benefits-card:first-child {
  grid-column: span 2;
  background: var(--gradient);
  color: var(--white);
}

.benefits-card:first-child i,
.benefits-card:first-child h3,
.benefits-card:first-child p {
  color: var(--white);
}

.benefits-card i {
  font-size: 2.5rem;
  color: var(--primary);
  margin-bottom: 1rem;
}

.benefits-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--dark);
}

.benefits-card p {
  color: var(--gray);
  font-size: 0.9rem;
}

/* Trust Section */
.trust-section {
  padding: 80px 5%;
  background: var(--dark);
  color: var(--white);
}

.trust-content {
  max-width: 1000px;
  margin: 0 auto;
  text-align: center;
}

.trust-content h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.trust-content > p {
  color: #94a3b8;
  margin-bottom: 3rem;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.trust-badges {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.trust-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
}

.trust-badge i {
  font-size: 2.5rem;
  color: var(--secondary);
}

.trust-badge span {
  font-size: 0.9rem;
  color: #cbd5e1;
}

/* CTA Section */
.cta-section {
  padding: 100px 5%;
  background: var(--gradient);
  text-align: center;
}

.cta-content {
  max-width: 800px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 1rem;
}

.cta-content p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

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

.cta-buttons .btn-primary {
  background: var(--white);
  color: var(--primary);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.cta-buttons .btn-primary:hover {
  background: #f9fafb;
}

.cta-buttons .btn-secondary {
  background: transparent;
  border: 2px solid var(--white);
  color: var(--white);
}

.cta-buttons .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* Footer */
footer {
  background: #0a0f1a;
  color: var(--white);
  padding: 60px 5% 30px;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  max-width: 1200px;
  margin: 0 auto;
}

.footer-brand h3 {
  font-size: 1.5rem;
  color: var(--white);
  margin-bottom: 1rem;
}

.footer-brand p {
  color: #94a3b8;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}

.footer-brand .copyright {
  margin-top: 1.5rem;
  font-size: 0.85rem;
  color: #475569;
}

.footer-links h4,
.footer-social h4 {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  color: var(--white);
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.footer-links ul li a {
  color: #94a3b8;
  font-size: 0.95rem;
  transition: color 0.3s ease;
}

.footer-links ul li a:hover {
  color: var(--secondary);
}

.social-icons {
  display: flex;
  gap: 1rem;
}

.social-icons a {
  width: 40px;
  height: 40px;
  background: #1e293b;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}

.social-icons a:hover {
  background: var(--primary);
}

.social-icons a i {
  color: var(--white);
  font-size: 1.1rem;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-text h1 {
    font-size: 2.5rem;
  }

  .hero-text p {
    margin: 0 auto 2rem;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-visual {
    display: none;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps {
    flex-direction: column;
    align-items: center;
  }

  .step:not(:last-child)::after {
    display: none;
  }

  .benefits-content {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .hamburger {
    display: block;
  }

  .nav-bar {
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.98);
    height: 0;
    overflow: hidden;
    transition: height 0.3s ease;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
  }

  .nav-bar.active {
    height: auto;
    padding: 20px 0;
  }

  .nav-bar ul {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }

  .hero {
    padding: 100px 5% 60px;
  }

  .hero-text h1 {
    font-size: 2rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .hero-stats {
    flex-direction: column;
    gap: 1.5rem;
  }

  .section-header h2 {
    font-size: 2rem;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .benefits-image {
    grid-template-columns: 1fr;
  }

  .benefits-card:first-child {
    grid-column: span 1;
  }

  .trust-badges {
    flex-direction: column;
    gap: 2rem;
  }

  .cta-content h2 {
    font-size: 1.8rem;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-links ul {
    align-items: center;
  }

  .social-icons {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero-text h1 {
    font-size: 1.8rem;
  }

  .btn {
    padding: 12px 24px;
    font-size: 0.95rem;
  }

  .feature-card {
    padding: 2rem;
  }

  .step-number {
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
  }
}