/* ============================================
   RxMonitor Landing Page Styles
   Self-contained - no imports from style.css
   ============================================ */

/* --- Custom Properties --- */
:root {
  --landing-primary: #4f46e5;
  --landing-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --landing-bg: #ffffff;
  --landing-text: #1f2937;
  --landing-muted: #6b7280;
  --landing-surface: #f9fafb;
  --landing-border: #e5e7eb;
  --landing-radius: 12px;
  --landing-max-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
    Ubuntu, Cantarell, sans-serif;
  background: var(--landing-bg);
  color: var(--landing-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

ul {
  list-style: none;
}

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

/* --- Utility --- */
.landing-container {
  max-width: var(--landing-max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Navigation --- */
.landing-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--landing-bg);
  border-bottom: 1px solid var(--landing-border);
  backdrop-filter: blur(8px);
  background: rgba(255, 255, 255, 0.95);
}

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

.landing-nav__logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--landing-text);
}

.landing-nav__logo-icon {
  font-size: 1.5rem;
}

.landing-nav__links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.landing-nav__link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--landing-muted);
  transition: color 0.2s ease;
}

.landing-nav__link:hover {
  color: var(--landing-primary);
}

.landing-nav__cta {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  font-size: 0.9rem;
  font-weight: 600;
  color: #ffffff;
  background: var(--landing-primary);
  border-radius: 8px;
  transition: background 0.2s ease, transform 0.2s ease;
}

.landing-nav__cta:hover {
  background: #4338ca;
  transform: translateY(-1px);
}

/* Hamburger Toggle */
.landing-nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.landing-nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--landing-text);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* Mobile nav open state */
.landing-nav__links--open {
  display: flex !important;
}

/* --- Hero Section --- */
.hero {
  padding: 140px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(102, 126, 234, 0.12) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -15%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(118, 75, 162, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.hero__headline {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--landing-text);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero__headline-accent {
  background: var(--landing-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__subheadline {
  font-size: 1.25rem;
  color: var(--landing-muted);
  margin-bottom: 12px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero__free-message {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--landing-primary);
  margin-bottom: 32px;
}

.hero__cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.hero__reassurance {
  font-size: 0.9rem;
  color: var(--landing-muted);
}

/* --- Button Styles --- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  color: #ffffff;
  background: var(--landing-primary);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary:hover {
  background: #4338ca;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(79, 70, 229, 0.3);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--landing-primary);
  background: transparent;
  border: 2px solid var(--landing-primary);
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.btn-secondary:hover {
  background: var(--landing-primary);
  color: #ffffff;
  transform: translateY(-2px);
}

/* --- Features Section --- */
.features {
  padding: 80px 0;
  background: var(--landing-bg);
}

.features__heading {
  text-align: center;
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--landing-text);
}

.features__subheading {
  text-align: center;
  font-size: 1.1rem;
  color: var(--landing-muted);
  margin-bottom: 48px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

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

@media (min-width: 1200px) {
  .features__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.feature-card {
  background: var(--landing-bg);
  border: 1px solid var(--landing-border);
  border-radius: var(--landing-radius);
  padding: 32px 24px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.feature-card__icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.feature-card__title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--landing-text);
}

.feature-card__desc {
  font-size: 0.95rem;
  color: var(--landing-muted);
  line-height: 1.5;
}

.feature-card--link {
  display: block;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

.feature-card__cta {
  display: inline-block;
  margin-top: 12px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--landing-primary);
  transition: transform 0.2s ease;
}

.feature-card--link:hover .feature-card__cta {
  transform: translateX(4px);
}

/* --- How It Works Section --- */
.how-it-works {
  padding: 80px 0;
  background: var(--landing-surface);
  border-top: 1px solid var(--landing-border);
  border-bottom: 1px solid var(--landing-border);
}

.how-it-works__heading {
  text-align: center;
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--landing-text);
}

.how-it-works__subheading {
  text-align: center;
  font-size: 1.1rem;
  color: var(--landing-muted);
  margin-bottom: 48px;
}

.how-it-works__steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
}

.how-it-works__step {
  text-align: center;
  padding: 24px;
}

.how-it-works__step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--landing-gradient);
  color: #ffffff;
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.how-it-works__step-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--landing-text);
}

.how-it-works__step-desc {
  font-size: 0.95rem;
  color: var(--landing-muted);
  line-height: 1.5;
}

/* --- Trust Section --- */
.trust {
  padding: 64px 0;
  background: var(--landing-surface);
  border-top: 1px solid var(--landing-border);
  border-bottom: 1px solid var(--landing-border);
}

.trust__heading {
  text-align: center;
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 40px;
  color: var(--landing-text);
}

.trust__stats {
  display: flex;
  justify-content: center;
  align-items: stretch;
  gap: 48px;
  flex-wrap: wrap;
}

.trust__stat {
  text-align: center;
  min-width: 180px;
}

.trust__stat-value {
  font-size: 2.5rem;
  font-weight: 800;
  background: var(--landing-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.trust__stat-label {
  font-size: 0.95rem;
  color: var(--landing-muted);
  font-weight: 500;
}

/* --- Pricing Section --- */
.pricing {
  padding: 80px 0;
  background: var(--landing-bg);
}

.pricing__heading {
  text-align: center;
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--landing-text);
}

.pricing__subheading {
  text-align: center;
  font-size: 1.1rem;
  color: var(--landing-muted);
  margin-bottom: 48px;
}

.pricing__cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  max-width: 800px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--landing-bg);
  border: 2px solid var(--landing-border);
  border-radius: var(--landing-radius);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.pricing-card--premium {
  border-color: var(--landing-primary);
  position: relative;
}

.pricing-card--premium::before {
  content: 'Popular';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--landing-gradient);
  color: #ffffff;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 16px;
  border-radius: 20px;
}

.pricing-card__label {
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--landing-primary);
  margin-bottom: 8px;
}

.pricing-card__price {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--landing-text);
  margin-bottom: 4px;
}

.pricing-card__price-period {
  font-size: 1rem;
  font-weight: 400;
  color: var(--landing-muted);
}

.pricing-card__desc {
  font-size: 0.95rem;
  color: var(--landing-muted);
  margin-bottom: 24px;
}

.pricing-card__features {
  flex: 1;
  margin-bottom: 32px;
}

.pricing-card__features li {
  padding: 8px 0;
  font-size: 0.95rem;
  color: var(--landing-text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.pricing-card__features li::before {
  content: '✓';
  color: var(--landing-primary);
  font-weight: 700;
  font-size: 1rem;
}

.pricing-card__note {
  font-size: 0.85rem;
  color: var(--landing-muted);
  text-align: center;
  margin-top: 12px;
}

.pricing-card__cta {
  width: 100%;
  text-align: center;
}

/* --- Final CTA Section --- */
.final-cta {
  padding: 80px 0;
  background: var(--landing-gradient);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.final-cta::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
  pointer-events: none;
}

.final-cta__content {
  position: relative;
  z-index: 1;
}

.final-cta__headline {
  font-size: 2.5rem;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 16px;
  line-height: 1.2;
}

.final-cta__reassurance {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 32px;
}

.final-cta .btn-primary {
  background: #ffffff;
  color: var(--landing-primary);
  font-size: 1.1rem;
  padding: 16px 40px;
}

.final-cta .btn-primary:hover {
  background: #f3f4f6;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

/* --- Footer --- */
.landing-footer {
  padding: 48px 0 32px;
  background: var(--landing-surface);
  border-top: 1px solid var(--landing-border);
}

.landing-footer .landing-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

.landing-footer__columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  width: 100%;
  max-width: 700px;
}

.landing-footer__col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.landing-footer__col-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--landing-text);
  margin-bottom: 4px;
}

.landing-footer__brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--landing-text);
}

.landing-footer__brand-icon {
  font-size: 1.3rem;
}

.landing-footer__links {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
}

.landing-footer__link {
  font-size: 0.9rem;
  color: var(--landing-muted);
  transition: color 0.2s ease;
}

.landing-footer__link:hover {
  color: var(--landing-primary);
}

.landing-footer__copy {
  font-size: 0.85rem;
  color: var(--landing-muted);
}

/* ============================================
   Responsive Breakpoints
   ============================================ */

/* Tablet: 768px */
@media (max-width: 1024px) {
  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero__headline {
    font-size: 2.75rem;
  }

  .trust__stats {
    gap: 32px;
  }
}

/* Mobile: below 768px */
@media (max-width: 768px) {
  .landing-nav__links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--landing-bg);
    border-bottom: 1px solid var(--landing-border);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  }

  .landing-nav__hamburger {
    display: flex;
  }

  .hero {
    padding: 120px 0 60px;
  }

  .hero__headline {
    font-size: 2.25rem;
  }

  .hero__subheadline {
    font-size: 1.1rem;
  }

  .hero__cta-group {
    flex-direction: column;
    gap: 12px;
  }

  .hero__cta-group .btn-primary,
  .hero__cta-group .btn-secondary {
    width: 100%;
    max-width: 300px;
  }

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

  .features__heading,
  .pricing__heading {
    font-size: 1.75rem;
  }

  .how-it-works__steps {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .how-it-works__heading {
    font-size: 1.75rem;
  }

  .trust__stats {
    flex-direction: column;
    align-items: center;
    gap: 24px;
  }

  .trust__stat-value {
    font-size: 2rem;
  }

  .pricing__cards {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .pricing-card {
    padding: 32px 24px;
  }

  .final-cta__headline {
    font-size: 1.75rem;
  }

  .final-cta__reassurance {
    font-size: 1rem;
  }

  .landing-footer__columns {
    grid-template-columns: 1fr;
    gap: 24px;
    text-align: center;
  }

  .landing-footer__col {
    align-items: center;
  }
}

/* Small mobile: below 480px */
@media (max-width: 480px) {
  .landing-container {
    padding: 0 16px;
  }

  .hero__headline {
    font-size: 1.85rem;
  }

  .hero__subheadline {
    font-size: 1rem;
  }

  .feature-card {
    padding: 24px 20px;
  }

  .pricing-card__price {
    font-size: 2rem;
  }

  .final-cta {
    padding: 60px 0;
  }

  .final-cta__headline {
    font-size: 1.5rem;
  }
}

/* Wide screens: 1920px+ */
@media (min-width: 1920px) {
  .landing-container {
    max-width: 1400px;
  }

  .hero__headline {
    font-size: 4rem;
  }

  .hero__subheadline {
    font-size: 1.4rem;
  }

  .features__grid {
    gap: 32px;
  }

  .trust__stats {
    gap: 64px;
  }
}