/*
 * CaseTrack Landing Pages CSS
 * Design System: Professional Legal SaaS
 */

/* ============================================
   1. CSS CUSTOM PROPERTIES (Design Tokens)
   ============================================ */
:root {
  /* Primary Colors */
  --color-primary: #1e40af;
  --color-primary-dark: #1e3a8a;
  --color-primary-light: #dbeafe;
  --color-primary-lighter: #eff6ff;

  /* Secondary Colors */
  --color-accent: #f59e0b;
  --color-success: #10b981;
  --color-danger: #ef4444;
  --color-warning: #f59e0b;
  --color-info: #3b82f6;

  /* Neutral Colors */
  --color-text-dark: #1f2937;
  --color-text-medium: #6b7280;
  --color-text-light: #9ca3af;
  --color-border: #e5e7eb;
  --color-background: #f9fafb;
  --color-white: #ffffff;

  /* Typography */
  --font-family-primary: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-xs: 0.75rem;     /* 12px */
  --font-size-sm: 0.875rem;    /* 14px */
  --font-size-base: 1rem;      /* 16px */
  --font-size-lg: 1.125rem;    /* 18px */
  --font-size-xl: 1.25rem;     /* 20px */
  --font-size-2xl: 1.5rem;     /* 24px */
  --font-size-3xl: 1.875rem;   /* 30px */
  --font-size-4xl: 2.25rem;    /* 36px */
  --font-size-5xl: 3rem;       /* 48px */

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Spacing (8px grid) */
  --spacing-xs: 0.25rem;   /* 4px */
  --spacing-sm: 0.5rem;    /* 8px */
  --spacing-md: 1rem;      /* 16px */
  --spacing-lg: 1.5rem;    /* 24px */
  --spacing-xl: 2rem;      /* 32px */
  --spacing-2xl: 3rem;     /* 48px */
  --spacing-3xl: 4rem;     /* 64px */
  --spacing-4xl: 6rem;     /* 96px */

  /* Border Radius */
  --radius-sm: 0.25rem;    /* 4px */
  --radius-md: 0.375rem;   /* 6px */
  --radius-lg: 0.5rem;     /* 8px */
  --radius-xl: 0.75rem;    /* 12px */
  --radius-2xl: 1rem;      /* 16px */
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0, 0, 0.2, 1);
  --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Container */
  --container-max-width: 1280px;
  --container-padding: 1.5rem;
}

/* ============================================
   2. BASE STYLES & RESET
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-dark);
  background-color: var(--color-white);
}

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

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

a:hover {
  color: var(--color-primary-dark);
}

/* ============================================
   3. TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text-dark);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: var(--font-size-5xl);
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-semibold);
  letter-spacing: -0.01em;
}

h3 {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-semibold);
}

h4 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
}

h5 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}

p {
  margin-bottom: var(--spacing-md);
  line-height: var(--line-height-normal);
  color: var(--color-text-medium);
}

.text-large {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
}

.text-muted {
  color: var(--color-text-medium);
}

.text-light {
  color: var(--color-text-light);
}

/* ============================================
   4. LAYOUT
   ============================================ */
.landing-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.landing-section {
  padding: var(--spacing-4xl) 0;
}

.landing-section-sm {
  padding: var(--spacing-3xl) 0;
}

.landing-section-lg {
  padding: 6rem 0;
}

/* ============================================
   5. NAVIGATION
   ============================================ */
.landing-navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: transparent;
  transition: all var(--transition-normal);
  padding: var(--spacing-lg) 0;
}

.landing-navbar.scrolled {
  background-color: var(--color-white);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-md) 0;
}

.landing-navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.landing-navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.landing-navbar-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  list-style: none;
}

.landing-navbar-link {
  color: var(--color-text-dark);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-base);
  transition: color var(--transition-fast);
}

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

.landing-navbar-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.landing-navbar-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

/* Mobile Menu */
.landing-navbar-mobile {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-white);
  z-index: 999;
  padding: var(--spacing-2xl);
  overflow-y: auto;
}

.landing-navbar-mobile.active {
  display: block;
}

.landing-navbar-mobile-menu {
  list-style: none;
  margin-top: var(--spacing-3xl);
}

.landing-navbar-mobile-item {
  margin-bottom: var(--spacing-lg);
}

.landing-navbar-mobile-link {
  display: block;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-dark);
  padding: var(--spacing-md) 0;
}

/* ============================================
   6. BUTTONS
   ============================================ */
.btn-landing {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 0.75rem 1.5rem;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-landing-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.btn-landing-primary:hover {
  background-color: var(--color-primary-dark);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
  color: var(--color-white);
}

.btn-landing-secondary {
  background-color: var(--color-white);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-landing-secondary:hover {
  background-color: var(--color-primary-light);
  color: var(--color-primary-dark);
}

.btn-landing-outline {
  background-color: transparent;
  color: var(--color-text-dark);
  border: 2px solid var(--color-border);
}

.btn-landing-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-landing-ghost {
  background-color: transparent;
  color: var(--color-primary);
  padding: 0.5rem 1rem;
}

.btn-landing-ghost:hover {
  background-color: var(--color-primary-lighter);
}

.btn-landing-lg {
  padding: 1rem 2rem;
  font-size: var(--font-size-lg);
}

.btn-landing-sm {
  padding: 0.5rem 1rem;
  font-size: var(--font-size-sm);
}

/* ============================================
   7. CARDS
   ============================================ */
.card-landing {
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  border: 1px solid var(--color-border);
}

.card-landing:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.card-landing-header {
  margin-bottom: var(--spacing-lg);
}

.card-landing-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-2xl);
}

.card-landing-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-dark);
  margin-bottom: var(--spacing-sm);
}

.card-landing-description {
  color: var(--color-text-medium);
  line-height: var(--line-height-normal);
  margin-bottom: 0;
}

/* ============================================
   8. HERO SECTION
   ============================================ */
.hero-section {
  padding: 8rem 0 6rem;
  background: linear-gradient(135deg, var(--color-primary-lighter) 0%, var(--color-white) 100%);
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: 700px;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: var(--font-weight-bold);
  line-height: 1.1;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-dark);
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-medium);
  margin-bottom: var(--spacing-2xl);
  line-height: var(--line-height-relaxed);
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-xl);
}

.hero-trust-badges {
  display: flex;
  gap: var(--spacing-xl);
  flex-wrap: wrap;
  align-items: center;
  margin-top: var(--spacing-xl);
}

.hero-badge {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-medium);
}

.hero-badge i {
  color: var(--color-success);
}

.hero-image {
  position: relative;
  z-index: 1;
}

.hero-image img {
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
}

/* ============================================
   9. FEATURES GRID
   ============================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-3xl);
}

.feature-card {
  background-color: var(--color-white);
  padding: var(--spacing-2xl);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  transition: all var(--transition-normal);
}

.feature-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.feature-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-3xl);
}

.feature-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-md);
}

.feature-description {
  color: var(--color-text-medium);
  line-height: var(--line-height-normal);
  margin-bottom: 0;
}

/* ============================================
   10. STATS SECTION
   ============================================ */
.stats-section {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-3xl) 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-2xl);
  text-align: center;
}

.stat-item {
  padding: var(--spacing-lg);
}

.stat-number {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-sm);
  color: var(--color-white);
}

.stat-label {
  font-size: var(--font-size-base);
  color: var(--color-primary-light);
  opacity: 0.9;
}

/* ============================================
   11. PRICING CARDS
   ============================================ */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-2xl);
  margin-top: var(--spacing-3xl);
}

.pricing-card {
  background-color: var(--color-white);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  transition: all var(--transition-normal);
  position: relative;
}

.pricing-card.popular {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-xl);
  transform: scale(1.05);
}

.pricing-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

.pricing-card.popular:hover {
  transform: scale(1.05) translateY(-4px);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  right: var(--spacing-xl);
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}

.pricing-name {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-sm);
}

.pricing-tagline {
  color: var(--color-text-medium);
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-sm);
}

.pricing-price {
  margin-bottom: var(--spacing-xl);
}

.pricing-amount {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-dark);
}

.pricing-period {
  font-size: var(--font-size-base);
  color: var(--color-text-medium);
}

.pricing-features {
  list-style: none;
  margin-bottom: var(--spacing-xl);
}

.pricing-feature {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) 0;
  color: var(--color-text-medium);
}

.pricing-feature i {
  color: var(--color-success);
  flex-shrink: 0;
  margin-top: 4px;
}

/* Pricing Toggle */
.pricing-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-3xl);
}

.pricing-toggle-label {
  font-weight: var(--font-weight-medium);
  color: var(--color-text-medium);
}

.pricing-toggle-label.active {
  color: var(--color-text-dark);
  font-weight: var(--font-weight-semibold);
}

.pricing-toggle-switch {
  position: relative;
  width: 56px;
  height: 28px;
  background-color: var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.pricing-toggle-switch.active {
  background-color: var(--color-primary);
}

.pricing-toggle-slider {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 24px;
  height: 24px;
  background-color: var(--color-white);
  border-radius: var(--radius-full);
  transition: transform var(--transition-fast);
}

.pricing-toggle-switch.active .pricing-toggle-slider {
  transform: translateX(28px);
}

/* ============================================
   12. TESTIMONIALS
   ============================================ */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-3xl);
}

.testimonial-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
}

.testimonial-rating {
  color: var(--color-accent);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-lg);
}

.testimonial-quote {
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-medium);
  margin-bottom: var(--spacing-lg);
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background-color: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
}

.testimonial-author-info {
  flex: 1;
}

.testimonial-author-name {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-dark);
  margin-bottom: 2px;
}

.testimonial-author-title {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

/* ============================================
   13. CTA SECTIONS
   ============================================ */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  padding: var(--spacing-4xl) 0;
  text-align: center;
  border-radius: var(--radius-2xl);
  margin: var(--spacing-3xl) var(--container-padding);
}

.cta-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--spacing-md);
  color: var(--color-white);
}

.cta-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-primary-light);
  margin-bottom: var(--spacing-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

.cta-note {
  font-size: var(--font-size-sm);
  color: var(--color-primary-light);
  margin-top: var(--spacing-lg);
  opacity: 0.9;
}

/* ============================================
   14. FORMS
   ============================================ */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-dark);
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-sm);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-family: var(--font-family-primary);
  transition: all var(--transition-fast);
  background-color: var(--color-white);
  color: var(--color-text-dark);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-lighter);
}

.form-input.error {
  border-color: var(--color-danger);
}

.form-error {
  color: var(--color-danger);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
}

.form-success {
  color: var(--color-success);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-xs);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* ============================================
   15. FOOTER
   ============================================ */
.landing-footer {
  background-color: var(--color-text-dark);
  color: var(--color-text-light);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-3xl);
}

.footer-column-title {
  color: var(--color-white);
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-base);
  margin-bottom: var(--spacing-lg);
}

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

.footer-link {
  display: block;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-sm);
  transition: color var(--transition-fast);
  font-size: var(--font-size-sm);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer-copyright {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

.footer-social {
  display: flex;
  gap: var(--spacing-md);
}

.footer-social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
  transition: all var(--transition-fast);
}

.footer-social-link:hover {
  background-color: var(--color-primary);
  transform: translateY(-2px);
}

/* ============================================
   16. UTILITIES
   ============================================ */
.text-center {
  text-align: center;
}

.text-primary {
  color: var(--color-primary) !important;
}

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

.mt-auto {
  margin-top: auto;
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-medium);
  text-align: center;
  margin-bottom: var(--spacing-3xl);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.section-badge {
  display: inline-block;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Alert Messages */
.alert-landing {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
  border: 1px solid transparent;
}

.alert-landing-success {
  background-color: #d1fae5;
  border-color: var(--color-success);
  color: #065f46;
}

.alert-landing-error {
  background-color: #fee2e2;
  border-color: var(--color-danger);
  color: #991b1b;
}

/* ============================================
   17. ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

.hover-lift {
  transition: transform var(--transition-normal);
}

.hover-lift:hover {
  transform: translateY(-4px);
}

/* ============================================
   18. RESPONSIVE DESIGN
   ============================================ */

/* Tablet (768px and below) */
@media (max-width: 768px) {
  :root {
    --container-padding: 1rem;
  }

  h1 {
    font-size: var(--font-size-4xl);
  }

  h2 {
    font-size: var(--font-size-3xl);
  }

  .landing-navbar-menu {
    display: none;
  }

  .landing-navbar-toggle {
    display: block;
  }

  .hero-section {
    padding: 6rem 0 4rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: var(--font-size-base);
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn-landing {
    width: 100%;
  }

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

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

  .pricing-card.popular {
    transform: scale(1);
  }

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

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

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .cta-title {
    font-size: var(--font-size-3xl);
  }
}

/* Mobile (480px and below) */
@media (max-width: 480px) {
  .hero-title {
    font-size: 1.75rem;
  }

  .section-title {
    font-size: var(--font-size-3xl);
  }

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

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

  .pricing-toggle {
    font-size: var(--font-size-sm);
  }
}

/* Large Desktop (1440px and above) */
@media (min-width: 1440px) {
  :root {
    --container-max-width: 1400px;
  }
}

/* ============================================
   19. ENHANCED SCROLL ANIMATIONS
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal-left.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal-right.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal-scale.active {
  opacity: 1;
  transform: scale(1);
}

/* Stagger animations for grid items */
.reveal:nth-child(1) { transition-delay: 0.1s; }
.reveal:nth-child(2) { transition-delay: 0.2s; }
.reveal:nth-child(3) { transition-delay: 0.3s; }
.reveal:nth-child(4) { transition-delay: 0.4s; }
.reveal:nth-child(5) { transition-delay: 0.5s; }
.reveal:nth-child(6) { transition-delay: 0.6s; }

/* ============================================
   20. ENHANCED MICRO-INTERACTIONS
   ============================================ */

/* Button ripple effect */
.btn-landing {
  position: relative;
  overflow: hidden;
}

.btn-landing::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn-landing:active::before {
  width: 300px;
  height: 300px;
}

/* Card 3D tilt on hover */
.card-landing,
.feature-card,
.pricing-card,
.testimonial-card {
  transition: all var(--transition-normal), transform 0.3s ease;
  transform-style: preserve-3d;
}

.card-landing:hover,
.feature-card:hover,
.testimonial-card:hover {
  transform: translateY(-8px) rotateX(2deg);
}

.pricing-card:hover {
  transform: translateY(-8px) scale(1.02);
}

/* Smooth shadow transitions */
.card-landing,
.feature-card,
.pricing-card,
.testimonial-card,
.btn-landing {
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-normal);
}

.card-landing:hover,
.feature-card:hover,
.pricing-card:hover,
.testimonial-card:hover {
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* Icon animations */
.feature-icon,
.card-landing-icon {
  transition: all var(--transition-normal);
}

.feature-card:hover .feature-icon,
.card-landing:hover .card-landing-icon {
  transform: scale(1.1) rotate(5deg);
}

/* Link underline animation */
.footer-link {
  position: relative;
  display: inline-block;
}

.footer-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: currentColor;
  transition: width var(--transition-normal);
}

.footer-link:hover::after {
  width: 100%;
}

/* Navbar link hover effect */
.landing-navbar-link {
  position: relative;
}

.landing-navbar-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-fast);
}

.landing-navbar-link:hover::after {
  width: 100%;
}

/* Image hover zoom */
.hero-image img,
.feature-card img {
  transition: transform var(--transition-slow);
}

.hero-image:hover img,
.feature-card:hover img {
  transform: scale(1.05);
}

/* Pulse animation for badges */
@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.8;
  }
}

.pricing-badge,
.section-badge {
  animation: pulse 2s ease-in-out infinite;
}

.pricing-badge:hover,
.section-badge:hover {
  animation: none;
}

/* Smooth color transitions */
* {
  transition-property: background-color, border-color, color, fill, stroke;
  transition-duration: var(--transition-fast);
  transition-timing-function: ease-in-out;
}

/* Override for elements that shouldn't transition */
.pricing-toggle-slider,
.video-modal,
.landing-navbar-mobile {
  transition: all var(--transition-normal);
}

/* Loading skeleton animation */
@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 1000px 100%;
  animation: shimmer 2s infinite;
}

/* Tooltip styles */
.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip::before {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 125%;
  left: 50%;
  transform: translateX(-50%) translateY(-10px);
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-text-dark);
  color: white;
  font-size: var(--font-size-sm);
  border-radius: var(--radius-md);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  z-index: 1000;
}

.tooltip::after {
  content: '';
  position: absolute;
  bottom: 115%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--color-text-dark);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.tooltip:hover::before,
.tooltip:hover::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Floating animation for CTAs */
@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.hero-actions .btn-landing-primary {
  animation: float 3s ease-in-out infinite;
}

/* Focus visible improvements for accessibility */
*:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Smooth page transitions */
@keyframes pageEnter {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

body {
  animation: pageEnter 0.6s ease-out;
}

/* Stats number counting animation */
.stat-number {
  display: inline-block;
  font-variant-numeric: tabular-nums;
}

/* Gradient text animation */
@keyframes gradientShift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.gradient-text {
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent), var(--color-primary));
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: gradientShift 3s ease infinite;
}

/* Glowing effect for important elements */
@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(30, 64, 175, 0.3);
  }
  50% {
    box-shadow: 0 0 30px rgba(30, 64, 175, 0.6);
  }
}

.btn-landing-primary:hover {
  animation: glow 2s ease-in-out infinite;
}