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

/* Root Variables */
:root {
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --text-dark: #1f2937;
  --text-gray: #6b7280;
  --bg-light: #f9fafb;
  --border-color: #e5e7eb;
  --success-color: #059669;
  --white: #ffffff;
}

/* Typography */
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--white);
}

h1, h2, h3, h4 {
  line-height: 1.2;
  margin-bottom: 1rem;
  font-weight: 700;
}

h1 {
  font-size: 2.5rem;
  color: var(--text-dark);
}

h2 {
  font-size: 2rem;
  color: var(--text-dark);
}

h3 {
  font-size: 1.5rem;
  color: var(--text-dark);
}

p {
  margin-bottom: 1rem;
}

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

a:hover {
  text-decoration: underline;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */
.header {
  background-color: var(--white);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-dark);
  text-decoration: none;
}

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

.nav a {
  color: var(--text-gray);
  font-weight: 500;
  text-decoration: none;
  transition: color 0.2s;
}

.nav a:hover {
  color: var(--primary-color);
  text-decoration: none;
}

/* Hero Section */
.hero {
  padding: 4rem 0;
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero-subheading {
  font-size: 1.25rem;
  color: var(--text-gray);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.disclaimer {
  background-color: #fef3c7;
  border: 1px solid #fbbf24;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  margin: 1.5rem 0;
  font-size: 0.95rem;
  color: #92400e;
}

.trust-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}

.trust-item {
  text-align: center;
  padding: 1rem;
}

.trust-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.trust-item h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.trust-item p {
  font-size: 0.875rem;
  color: var(--text-gray);
  margin-bottom: 0;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  font-size: 1.125rem;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  border-radius: 0.5rem;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

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

.btn-primary:hover {
  background-color: var(--primary-hover);
  text-decoration: none;
}

.btn-large {
  padding: 1.25rem 2.5rem;
  font-size: 1.25rem;
}

/* Recharge Widget */
.recharge-widget {
  background-color: var(--white);
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  max-width: 600px;
  margin: 2rem auto;
}

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

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-dark);
}

.form-input {
  width: 100%;
  padding: 0.875rem 1rem;
  font-size: 1rem;
  border: 2px solid var(--border-color);
  border-radius: 0.5rem;
  transition: border-color 0.2s;
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-color);
}

.amount-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.chip {
  padding: 0.75rem 1.5rem;
  border: 2px solid var(--border-color);
  border-radius: 0.5rem;
  background-color: var(--white);
  cursor: pointer;
  font-weight: 600;
  transition: all 0.2s;
}

.chip:hover {
  border-color: var(--primary-color);
  background-color: #eff6ff;
}

.chip.selected {
  border-color: var(--primary-color);
  background-color: var(--primary-color);
  color: var(--white);
}

.microcopy {
  font-size: 0.875rem;
  color: var(--text-gray);
  margin-top: 0.5rem;
}

/* Sections */
.section {
  padding: 4rem 0;
}

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

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.step {
  text-align: center;
  padding: 1.5rem;
}

.step-number {
  display: inline-block;
  width: 3rem;
  height: 3rem;
  line-height: 3rem;
  background-color: var(--primary-color);
  color: var(--white);
  border-radius: 50%;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.step h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.step p {
  color: var(--text-gray);
  margin-bottom: 0;
}

/* Content Block */
.content-block {
  max-width: 800px;
  margin: 0 auto;
}

.content-block h2 {
  margin-bottom: 1.5rem;
}

.content-block h3 {
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.content-block ul {
  margin-left: 1.5rem;
  margin-bottom: 1rem;
}

.content-block li {
  margin-bottom: 0.5rem;
  color: var(--text-gray);
}

/* FAQ */
.faq {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  margin-bottom: 2rem;
  padding: 1.5rem;
  background-color: var(--white);
  border-radius: 0.5rem;
  border: 1px solid var(--border-color);
}

.faq-item h3 {
  color: var(--primary-color);
  margin-bottom: 0.75rem;
}

.faq-item p {
  color: var(--text-gray);
  margin-bottom: 0;
}

/* Footer */
.footer {
  background-color: var(--text-dark);
  color: #9ca3af;
  padding: 3rem 0 2rem;
  margin-top: 4rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h4 {
  color: var(--white);
  margin-bottom: 1rem;
}

.footer-section p {
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: #9ca3af;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 2rem;
  text-align: center;
  font-size: 0.875rem;
}

.footer-disclaimer {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid #374151;
  font-size: 0.875rem;
  color: #9ca3af;
}

/* Sticky CTA */
.sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--white);
  border-top: 1px solid var(--border-color);
  padding: 1rem;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
  z-index: 99;
  display: none;
}

.sticky-cta-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.sticky-cta-text {
  flex: 1;
}

.sticky-cta-text p {
  margin: 0;
  font-weight: 600;
}

.sticky-cta .btn {
  white-space: nowrap;
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2rem;
  }

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

  .nav {
    display: none;
  }

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

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

  .amount-chips {
    justify-content: center;
  }

  .sticky-cta {
    display: block;
  }

  .sticky-cta-content {
    flex-direction: column;
    text-align: center;
  }

  .sticky-cta .btn {
    width: 100%;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.5rem;
  }
}

@media (min-width: 769px) {
  .sticky-cta {
    display: none;
  }
}