/* ==========================================================================
   GoliathPrep Marketing - Main Stylesheet

   A modern SaaS marketing page stylesheet built to match the GoliathPrep
   brand system. Colors, shadows, and animations are derived from the
   existing Tailwind configuration in GoliathPrep-Frontend.

   Typography: Inter (sans), Fira Code (mono) via Google Fonts
   Primary: Purple 600 (#9333ea) spectrum
   Accent: Fuchsia 600 (#c026d3) spectrum
   Surface: Dark theme (#0c0a14 base)

   Table of Contents:
   1.  CSS Custom Properties
   2.  Reset & Base
   3.  Typography
   4.  Layout & Container
   5.  Navigation
   6.  Buttons
   7.  Cards
   8.  Shadows
   9.  Backgrounds & Gradients
   10. Hero Section
   11. Screenshots & Media
   12. Comparison Table
   13. Pricing Cards
   14. Badges & Tags
   15. Forms & Inputs
   16. Footer
   17. Animations & Keyframes
   18. Scroll & Intersection Observer
   19. Utilities
   20. Responsive Breakpoints
   21. Accessibility & Reduced Motion
   ========================================================================== */


/* ==========================================================================
   1. CSS Custom Properties
   ========================================================================== */

:root {
  /* --- Primary (Purple) --- */
  --color-primary-50: #faf5ff;
  --color-primary-100: #f3e8ff;
  --color-primary-200: #e9d5ff;
  --color-primary-300: #d8b4fe;
  --color-primary-400: #c084fc;
  --color-primary-500: #a855f7;
  --color-primary-600: #9333ea;
  --color-primary-700: #7c22ce;
  --color-primary-800: #6b21a8;
  --color-primary-900: #581c87;
  --color-primary-950: #3b0764;

  /* --- Accent (Fuchsia) --- */
  --color-accent-50: #fdf4ff;
  --color-accent-100: #fae8ff;
  --color-accent-200: #f5d0fe;
  --color-accent-300: #f0abfc;
  --color-accent-400: #e879f9;
  --color-accent-500: #d946ef;
  --color-accent-600: #c026d3;
  --color-accent-700: #a21caf;
  --color-accent-800: #86198f;
  --color-accent-900: #701a75;
  --color-accent-950: #4a044e;

  /* --- Success (Green) --- */
  --color-success-50: #f0fdf4;
  --color-success-100: #dcfce7;
  --color-success-200: #bbf7d0;
  --color-success-300: #86efac;
  --color-success-400: #4ade80;
  --color-success-500: #10b981;
  --color-success-600: #059669;
  --color-success-700: #047857;
  --color-success-800: #065f46;
  --color-success-900: #064e3b;

  /* --- Danger (Red) --- */
  --color-danger-50: #fef2f2;
  --color-danger-100: #fee2e2;
  --color-danger-200: #fecaca;
  --color-danger-300: #fca5a5;
  --color-danger-400: #f87171;
  --color-danger-500: #ef4444;
  --color-danger-600: #dc2626;
  --color-danger-700: #b91c1c;
  --color-danger-800: #991b1b;
  --color-danger-900: #7f1d1d;

  /* --- Surfaces (Dark Theme) --- */
  --surface-dark: #0c0a14;
  --surface-elevated: #1a1625;
  --surface-subtle: #241f32;
  --surface-border: rgba(147, 51, 234, 0.12);
  --surface-border-strong: rgba(147, 51, 234, 0.25);

  /* --- Text --- */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-tertiary: #64748b;
  --text-inverted: #0c0a14;

  /* --- Gradients --- */
  --gradient-primary: linear-gradient(135deg, var(--color-primary-600), var(--color-accent-600));
  --gradient-primary-subtle: linear-gradient(135deg, var(--color-primary-500), var(--color-accent-500));
  --gradient-hero: radial-gradient(ellipse 80% 60% at 50% -20%, rgba(147, 51, 234, 0.15) 0%, transparent 60%),
                   radial-gradient(ellipse 60% 40% at 80% 50%, rgba(192, 38, 211, 0.08) 0%, transparent 50%);
  --gradient-hero-bold: radial-gradient(ellipse 80% 50% at 50% -10%, rgba(147, 51, 234, 0.25) 0%, transparent 55%),
                        radial-gradient(ellipse 50% 30% at 80% 60%, rgba(192, 38, 211, 0.12) 0%, transparent 45%);

  /* --- Shadows (matching Tailwind config) --- */
  --shadow-premium: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
                    0 2px 4px -1px rgba(0, 0, 0, 0.06),
                    0 0 0 1px rgba(147, 51, 234, 0.05);
  --shadow-premium-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
                       0 4px 6px -2px rgba(0, 0, 0, 0.05),
                       0 0 0 1px rgba(147, 51, 234, 0.1);
  --shadow-glow: 0 0 20px rgba(147, 51, 234, 0.15),
                 0 0 40px rgba(147, 51, 234, 0.1);
  --shadow-glow-primary: 0 0 20px rgba(147, 51, 234, 0.2),
                         0 0 40px rgba(147, 51, 234, 0.1);
  --shadow-glow-accent: 0 0 20px rgba(217, 70, 239, 0.2),
                        0 0 40px rgba(217, 70, 239, 0.1);
  --shadow-dark-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
  --shadow-dark-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4),
                    0 2px 4px -1px rgba(0, 0, 0, 0.3);
  --shadow-dark-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5),
                    0 4px 6px -2px rgba(0, 0, 0, 0.4);

  /* --- Spacing --- */
  --section-py: clamp(4rem, 8vw, 7rem);
  --section-py-lg: clamp(5rem, 10vw, 9rem);

  /* --- Borders --- */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.25rem;
  --radius-3xl: 1.5rem;
  --radius-full: 9999px;

  /* --- Transitions --- */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* --- Z-Index Scale --- */
  --z-base: 1;
  --z-dropdown: 10;
  --z-sticky: 50;
  --z-overlay: 100;
  --z-modal: 200;
}


/* ==========================================================================
   2. Reset & Base
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--surface-dark);
  overflow-x: hidden;
  min-height: 100vh;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-primary-400);
  text-decoration: none;
  transition: color var(--transition-base);
}

a:hover {
  color: var(--color-primary-300);
}

::selection {
  background-color: rgba(147, 51, 234, 0.3);
  color: var(--text-primary);
}


/* ==========================================================================
   3. Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--text-primary);
}

h1 {
  font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
  letter-spacing: -0.035em;
  font-weight: 700;
}

h2 {
  font-size: clamp(1.875rem, 4vw + 0.5rem, 3rem);
  letter-spacing: -0.03em;
  font-weight: 700;
}

h3 {
  font-size: clamp(1.25rem, 2vw + 0.5rem, 1.875rem);
  font-weight: 600;
}

h4 {
  font-size: clamp(1.125rem, 1.5vw + 0.5rem, 1.5rem);
  font-weight: 600;
}

h5 {
  font-size: 1.125rem;
  font-weight: 600;
}

h6 {
  font-size: 1rem;
  font-weight: 600;
}

p {
  color: var(--text-secondary);
  line-height: 1.7;
}

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

.text-gradient-subtle {
  background: linear-gradient(135deg, var(--text-primary) 40%, var(--color-primary-400));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-balance {
  text-wrap: balance;
}

.font-mono {
  font-family: 'Fira Code', 'Menlo', 'Monaco', 'Consolas', monospace;
}

.lead {
  font-size: clamp(1.125rem, 1.5vw + 0.5rem, 1.375rem);
  line-height: 1.7;
  color: var(--text-secondary);
}

.overline {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary-400);
}


/* ==========================================================================
   4. Layout & Container
   ========================================================================== */

.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

.container-narrow {
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

.container-wide {
  max-width: 1440px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

@media (min-width: 640px) {
  .container,
  .container-narrow,
  .container-wide {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .container,
  .container-narrow,
  .container-wide {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

/* --- Section Spacing --- */

.section {
  padding-top: var(--section-py);
  padding-bottom: var(--section-py);
}

.section-lg {
  padding-top: var(--section-py-lg);
  padding-bottom: var(--section-py-lg);
}

/* --- Grid System --- */

.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-2 {
  grid-template-columns: 1fr;
}

.grid-3 {
  grid-template-columns: 1fr;
}

.grid-4 {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid {
    gap: 2rem;
  }

  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .grid-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

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

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

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

.gap-sm { gap: 0.5rem; }
.gap-md { gap: 1rem; }
.gap-lg { gap: 1.5rem; }
.gap-xl { gap: 2rem; }
.gap-2xl { gap: 3rem; }

.stack > * + * {
  margin-top: 1rem;
}

.stack-lg > * + * {
  margin-top: 1.5rem;
}

.stack-xl > * + * {
  margin-top: 2rem;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mx-auto { margin-left: auto; margin-right: auto; }
.max-w-prose { max-width: 65ch; }
.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }


/* ==========================================================================
   5. Navigation
   ========================================================================== */

.nav {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  width: 100%;
  background: rgba(12, 10, 20, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--surface-border);
  transition: background var(--transition-slow),
              border-color var(--transition-slow),
              box-shadow var(--transition-slow);
}

.nav--scrolled {
  background: rgba(12, 10, 20, 0.92);
  border-bottom-color: var(--surface-border-strong);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3),
              0 0 20px rgba(147, 51, 234, 0.04);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

@media (min-width: 768px) {
  .nav__inner {
    height: 4.5rem;
  }
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav__logo:hover {
  color: var(--text-primary);
}

.nav__logo img {
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-md);
}

.nav__links {
  display: none;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 768px) {
  .nav__links {
    display: flex;
  }
}

.nav__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-base);
  position: relative;
}

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

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
}

.nav__link:hover::after {
  width: 100%;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Mobile menu toggle */
.nav__menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: color var(--transition-base), background var(--transition-base);
}

.nav__menu-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

@media (min-width: 768px) {
  .nav__menu-btn {
    display: none;
  }
}

/* Mobile navigation overlay */
.nav__mobile {
  display: none;
  position: fixed;
  inset: 0;
  top: 4rem;
  z-index: var(--z-overlay);
  background: rgba(12, 10, 20, 0.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 2rem 1.5rem;
}

.nav__mobile.is-open {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  animation: fadeIn 200ms ease-out;
}

.nav__mobile a {
  display: block;
  padding: 0.875rem 0;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  border-bottom: 1px solid var(--surface-border);
  transition: color var(--transition-base);
}

.nav__mobile a:hover {
  color: var(--text-primary);
}


/* ==========================================================================
   6. Buttons
   ========================================================================== */

/* --- Base Button --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-primary);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: 0.5;
  pointer-events: none;
}

/* --- Gradient Button --- */
.btn-gradient {
  color: #fff;
  background: var(--gradient-primary);
  border: none;
  box-shadow: var(--shadow-dark-sm),
              0 0 0 1px rgba(147, 51, 234, 0.2);
}

.btn-gradient::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-accent-500));
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: -1;
}

.btn-gradient:hover {
  box-shadow: var(--shadow-dark-md),
              var(--shadow-glow-primary);
  transform: translateY(-1px);
}

.btn-gradient:hover::before {
  opacity: 1;
}

.btn-gradient:active {
  transform: translateY(0);
  box-shadow: var(--shadow-dark-sm);
}

/* --- Outline Button --- */
.btn-outline {
  color: var(--text-primary);
  background: transparent;
  border: 1px solid var(--surface-border-strong);
}

.btn-outline:hover {
  background: rgba(147, 51, 234, 0.08);
  border-color: var(--color-primary-600);
  color: var(--text-primary);
  box-shadow: var(--shadow-glow);
}

.btn-outline:active {
  background: rgba(147, 51, 234, 0.12);
}

/* --- Ghost Button --- */
.btn-ghost {
  color: var(--text-secondary);
  background: transparent;
  border: none;
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

/* --- White/Light Button (for dark backgrounds) --- */
.btn-white {
  color: var(--text-inverted);
  background: #fff;
  border: none;
  font-weight: 600;
}

.btn-white:hover {
  background: var(--color-primary-50);
  color: var(--color-primary-700);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* --- Button Sizes --- */
.btn-sm {
  padding: 0.4375rem 0.875rem;
  font-size: 0.8125rem;
  border-radius: var(--radius-md);
}

.btn-lg {
  padding: 0.8125rem 1.75rem;
  font-size: 1rem;
  border-radius: var(--radius-xl);
}

.btn-xl {
  padding: 1rem 2.25rem;
  font-size: 1.0625rem;
  border-radius: var(--radius-xl);
}

/* --- Icon-only button --- */
.btn-icon {
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border-radius: var(--radius-md);
}

.btn-icon.btn-lg {
  width: 3rem;
  height: 3rem;
}

/* --- Button Group --- */
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

@media (max-width: 639px) {
  .btn-group--stack-mobile {
    flex-direction: column;
    width: 100%;
  }

  .btn-group--stack-mobile .btn {
    width: 100%;
  }
}


/* ==========================================================================
   7. Cards
   ========================================================================== */

/* --- Base Card --- */
.card {
  background: var(--surface-elevated);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-2xl);
  padding: 1.5rem;
  transition: border-color var(--transition-base),
              box-shadow var(--transition-base),
              transform var(--transition-base);
}

/* --- Premium Card --- */
.card-premium {
  background: var(--surface-elevated);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-2xl);
  padding: 2rem;
  box-shadow: var(--shadow-premium);
  transition: border-color var(--transition-base),
              box-shadow var(--transition-slow),
              transform var(--transition-spring);
}

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

/* --- Featured Card (accent border, glow) --- */
.card-featured {
  background: var(--surface-elevated);
  border: 1px solid rgba(192, 38, 211, 0.3);
  border-radius: var(--radius-2xl);
  padding: 2rem;
  box-shadow: var(--shadow-glow-accent);
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition-base),
              box-shadow var(--transition-slow),
              transform var(--transition-spring);
}

.card-featured::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
}

.card-featured:hover {
  border-color: rgba(192, 38, 211, 0.45);
  box-shadow: 0 0 30px rgba(192, 38, 211, 0.2),
              0 0 60px rgba(147, 51, 234, 0.08);
  transform: translateY(-4px);
}

/* --- Glass Card --- */
.card-glass {
  background: rgba(26, 22, 37, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-2xl);
  padding: 2rem;
  transition: border-color var(--transition-base),
              background var(--transition-base);
}

.card-glass:hover {
  border-color: rgba(255, 255, 255, 0.1);
  background: rgba(26, 22, 37, 0.75);
}

/* --- Card Content Utilities --- */
.card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(147, 51, 234, 0.15), rgba(192, 38, 211, 0.1));
  color: var(--color-primary-400);
  margin-bottom: 1rem;
}

.card__title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.card__description {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}


/* ==========================================================================
   8. Shadows
   ========================================================================== */

.shadow-premium {
  box-shadow: var(--shadow-premium);
}

.shadow-premium-lg {
  box-shadow: var(--shadow-premium-lg);
}

.shadow-glow {
  box-shadow: var(--shadow-glow);
}

.shadow-glow-primary {
  box-shadow: var(--shadow-glow-primary);
}

.shadow-glow-accent {
  box-shadow: var(--shadow-glow-accent);
}

.shadow-dark-sm {
  box-shadow: var(--shadow-dark-sm);
}

.shadow-dark-md {
  box-shadow: var(--shadow-dark-md);
}

.shadow-dark-lg {
  box-shadow: var(--shadow-dark-lg);
}


/* ==========================================================================
   9. Backgrounds & Gradients
   ========================================================================== */

.bg-surface-dark { background-color: var(--surface-dark); }
.bg-surface-elevated { background-color: var(--surface-elevated); }
.bg-surface-subtle { background-color: var(--surface-subtle); }

.bg-gradient-hero {
  position: relative;
  background-color: var(--surface-dark);
}

.bg-gradient-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
  pointer-events: none;
  z-index: 0;
}

.bg-gradient-hero > * {
  position: relative;
  z-index: 1;
}

.bg-gradient-premium {
  background: var(--gradient-primary);
}

.bg-gradient-premium-subtle {
  background: linear-gradient(135deg, rgba(147, 51, 234, 0.08), rgba(192, 38, 211, 0.05));
}

/* Subtle mesh gradient overlay */
.bg-mesh {
  position: relative;
}

.bg-mesh::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle 600px at 10% 20%, rgba(147, 51, 234, 0.06), transparent),
    radial-gradient(circle 500px at 90% 80%, rgba(192, 38, 211, 0.04), transparent),
    radial-gradient(circle 400px at 50% 50%, rgba(168, 85, 247, 0.03), transparent);
  pointer-events: none;
  z-index: 0;
}

.bg-mesh > * {
  position: relative;
  z-index: 1;
}

/* Decorative divider line between sections */
.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--surface-border-strong), transparent);
  border: none;
  margin: 0;
}


/* ==========================================================================
   10. Hero Section
   ========================================================================== */

.hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(5rem, 12vw, 9rem);
  padding-bottom: clamp(4rem, 10vw, 8rem);
}

/* Animated gradient orbs */
.hero__orbs {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  will-change: transform;
}

.hero__orb--primary {
  width: clamp(300px, 50vw, 700px);
  height: clamp(300px, 50vw, 700px);
  background: radial-gradient(circle, rgba(147, 51, 234, 0.2), transparent 70%);
  top: -20%;
  left: -10%;
  animation: orbFloat1 20s ease-in-out infinite;
}

.hero__orb--accent {
  width: clamp(250px, 40vw, 550px);
  height: clamp(250px, 40vw, 550px);
  background: radial-gradient(circle, rgba(192, 38, 211, 0.15), transparent 70%);
  top: 10%;
  right: -15%;
  animation: orbFloat2 25s ease-in-out infinite;
}

.hero__orb--subtle {
  width: clamp(200px, 35vw, 500px);
  height: clamp(200px, 35vw, 500px);
  background: radial-gradient(circle, rgba(168, 85, 247, 0.1), transparent 70%);
  bottom: -10%;
  left: 30%;
  animation: orbFloat3 18s ease-in-out infinite;
}

.hero__content {
  position: relative;
  z-index: 1;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 1rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-primary-300);
  background: rgba(147, 51, 234, 0.1);
  border: 1px solid rgba(147, 51, 234, 0.2);
  border-radius: var(--radius-full);
  margin-bottom: 1.5rem;
}

.hero__title {
  margin-bottom: 1.5rem;
}

.hero__subtitle {
  font-size: clamp(1.0625rem, 1.5vw + 0.5rem, 1.25rem);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 48ch;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.5rem;
}

@media (max-width: 639px) {
  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }
}

/* Hero visual / screenshot area */
.hero__visual {
  position: relative;
  margin-top: clamp(3rem, 6vw, 5rem);
  z-index: 1;
}

.hero__visual-glow {
  position: absolute;
  inset: -20%;
  background: radial-gradient(ellipse 50% 50% at center, rgba(147, 51, 234, 0.12), transparent 70%);
  pointer-events: none;
  z-index: 0;
}


/* ==========================================================================
   11. Screenshots & Media
   ========================================================================== */

.screenshot-frame {
  position: relative;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  border: 1px solid var(--surface-border);
  box-shadow: var(--shadow-premium-lg),
              0 0 60px rgba(147, 51, 234, 0.06);
  transition: transform var(--transition-slow),
              box-shadow var(--transition-slow);
}

.screenshot-frame img {
  display: block;
  width: 100%;
  height: auto;
}

.screenshot-frame:hover {
  transform: perspective(1000px) rotateY(-2deg) rotateX(1deg) scale(1.01);
  box-shadow: var(--shadow-premium-lg),
              var(--shadow-glow);
}

/* Browser-style frame decoration */
.screenshot-frame--browser {
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.screenshot-frame--browser::before {
  content: '';
  display: block;
  height: 2.5rem;
  background: var(--surface-subtle);
  border-bottom: 1px solid var(--surface-border);
  background-image:
    radial-gradient(circle 4px at 1rem 50%, rgba(255, 255, 255, 0.1) 4px, transparent 4px),
    radial-gradient(circle 4px at 2rem 50%, rgba(255, 255, 255, 0.1) 4px, transparent 4px),
    radial-gradient(circle 4px at 3rem 50%, rgba(255, 255, 255, 0.1) 4px, transparent 4px);
  background-size: 100% 100%;
  background-repeat: no-repeat;
}

/* Screenshot gallery grid */
.screenshot-gallery {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .screenshot-gallery {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
}

@media (min-width: 1024px) {
  .screenshot-gallery--featured {
    grid-template-columns: 1.2fr 0.8fr;
  }
}


/* ==========================================================================
   12. Comparison Table
   ========================================================================== */

.comparison-table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-2xl);
  border: 1px solid var(--surface-border);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
  min-width: 600px;
}

.comparison-table thead {
  position: sticky;
  top: 0;
  z-index: 2;
}

.comparison-table th {
  padding: 1rem 1.25rem;
  text-align: left;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-secondary);
  background: var(--surface-subtle);
  border-bottom: 1px solid var(--surface-border);
  white-space: nowrap;
}

.comparison-table td {
  padding: 0.875rem 1.25rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--surface-border);
  vertical-align: middle;
}

.comparison-table tbody tr {
  transition: background var(--transition-fast);
}

.comparison-table tbody tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.015);
}

.comparison-table tbody tr:hover {
  background: rgba(147, 51, 234, 0.04);
}

.comparison-table tbody tr:last-child td {
  border-bottom: none;
}

/* Feature column (first col, left-aligned) */
.comparison-table td:first-child {
  font-weight: 500;
  color: var(--text-primary);
}

/* --- Highlighted Column (GoliathPrep) --- */
.comparison-table th.col-highlight {
  background: linear-gradient(180deg, rgba(147, 51, 234, 0.12), rgba(147, 51, 234, 0.06));
  color: var(--color-primary-300);
  border-bottom-color: rgba(147, 51, 234, 0.2);
}

.comparison-table td.col-highlight {
  background: rgba(147, 51, 234, 0.04);
  color: var(--text-primary);
}

.comparison-table tbody tr:nth-child(even) td.col-highlight {
  background: rgba(147, 51, 234, 0.06);
}

/* Check and X marks */
.check-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.375rem;
  height: 1.375rem;
  border-radius: var(--radius-full);
  background: rgba(16, 185, 129, 0.12);
  color: var(--color-success-400);
  font-size: 0.75rem;
  font-weight: 700;
}

.check-mark::before {
  content: '\2713';
}

.x-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.375rem;
  height: 1.375rem;
  border-radius: var(--radius-full);
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-danger-400);
  font-size: 0.75rem;
  font-weight: 700;
}

.x-mark::before {
  content: '\2717';
}

.partial-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.375rem;
  height: 1.375rem;
  border-radius: var(--radius-full);
  background: rgba(251, 191, 36, 0.1);
  color: #fbbf24;
  font-size: 0.8125rem;
  font-weight: 700;
}

.partial-mark::before {
  content: '\2013';
}


/* ==========================================================================
   13. Pricing Cards
   ========================================================================== */

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: start;
}

@media (min-width: 768px) {
  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
  }
}

/* --- Base Pricing Card --- */
.pricing-card {
  background: var(--surface-elevated);
  border: 1px solid var(--surface-border);
  padding: 2rem;
  position: relative;
  transition: border-color var(--transition-base),
              box-shadow var(--transition-slow);
}

@media (min-width: 768px) {
  .pricing-card:first-child {
    border-radius: var(--radius-2xl) 0 0 var(--radius-2xl);
    border-right: none;
  }

  .pricing-card:last-child {
    border-radius: 0 var(--radius-2xl) var(--radius-2xl) 0;
    border-left: none;
  }
}

@media (max-width: 767px) {
  .pricing-card {
    border-radius: var(--radius-2xl);
  }
}

.pricing-card:hover {
  border-color: var(--surface-border-strong);
}

/* --- Featured/Pro Pricing Card (Middle) --- */
.pricing-card--featured {
  background: var(--surface-elevated);
  border: 1px solid rgba(147, 51, 234, 0.3);
  box-shadow: var(--shadow-glow),
              var(--shadow-premium-lg);
  z-index: 2;
  padding: 2.5rem 2rem;
}

@media (min-width: 768px) {
  .pricing-card--featured {
    border-radius: var(--radius-2xl);
    transform: scale(1.04);
  }
}

@media (max-width: 767px) {
  .pricing-card--featured {
    border-radius: var(--radius-2xl);
  }
}

.pricing-card--featured::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
}

.pricing-card--featured:hover {
  border-color: rgba(147, 51, 234, 0.45);
  box-shadow: 0 0 30px rgba(147, 51, 234, 0.2),
              0 0 60px rgba(147, 51, 234, 0.08),
              var(--shadow-premium-lg);
}

/* --- Pricing Content --- */
.pricing-card__badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #fff;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

.pricing-card__name {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.375rem;
}

.pricing-card__description {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin-bottom: 1.5rem;
}

.pricing-card__price {
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
  margin-bottom: 0.25rem;
}

.pricing-card__amount {
  font-size: 3rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.035em;
  line-height: 1;
}

.pricing-card__period {
  font-size: 0.9375rem;
  color: var(--text-tertiary);
}

.pricing-card__billing {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  margin-bottom: 2rem;
}

.pricing-card__features {
  list-style: none;
  padding: 0;
  margin: 0 0 2rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.pricing-card__feature {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.pricing-card__feature::before {
  content: '\2713';
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  margin-top: 0.125rem;
  font-size: 0.6875rem;
  font-weight: 700;
  color: var(--color-success-400);
  background: rgba(16, 185, 129, 0.1);
  border-radius: var(--radius-full);
}

.pricing-card--featured .pricing-card__feature::before {
  color: var(--color-primary-400);
  background: rgba(147, 51, 234, 0.12);
}

.pricing-card__cta {
  width: 100%;
}


/* ==========================================================================
   14. Badges & Tags
   ========================================================================== */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  line-height: 1.4;
  white-space: nowrap;
}

.badge-primary {
  color: var(--color-primary-300);
  background: rgba(147, 51, 234, 0.12);
  border: 1px solid rgba(147, 51, 234, 0.2);
}

.badge-accent {
  color: var(--color-accent-300);
  background: rgba(192, 38, 211, 0.12);
  border: 1px solid rgba(192, 38, 211, 0.2);
}

.badge-success {
  color: var(--color-success-400);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.15);
}

.badge-danger {
  color: var(--color-danger-400);
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.15);
}

.badge-neutral {
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

/* Tag with dot indicator */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.3125rem 0.75rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--surface-subtle);
  border-radius: var(--radius-full);
}

.tag__dot {
  width: 0.375rem;
  height: 0.375rem;
  border-radius: var(--radius-full);
  background: var(--color-primary-500);
}


/* ==========================================================================
   15. Forms & Inputs
   ========================================================================== */

.input {
  width: 100%;
  padding: 0.6875rem 1rem;
  font-family: inherit;
  font-size: 0.9375rem;
  color: var(--text-primary);
  background: var(--surface-subtle);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  outline: none;
  transition: border-color var(--transition-base),
              box-shadow var(--transition-base);
}

.input::placeholder {
  color: var(--text-tertiary);
}

.input:focus {
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px rgba(147, 51, 234, 0.15);
}

/* Email capture combo (input + button inline) */
.input-group {
  display: flex;
  gap: 0.5rem;
}

.input-group .input {
  flex: 1;
  min-width: 0;
}

@media (max-width: 639px) {
  .input-group--stack-mobile {
    flex-direction: column;
  }
}


/* ==========================================================================
   16. Footer
   ========================================================================== */

.footer {
  padding-top: clamp(3rem, 6vw, 5rem);
  padding-bottom: 2rem;
  border-top: 1px solid var(--surface-border);
  background: var(--surface-dark);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

@media (min-width: 640px) {
  .footer__grid {
    grid-template-columns: 1.5fr repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer__grid {
    grid-template-columns: 1.5fr repeat(3, 1fr);
  }
}

.footer__brand p {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  margin-top: 0.75rem;
  max-width: 28ch;
  line-height: 1.6;
}

.footer__heading {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.footer__links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.footer__links a {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  text-decoration: none;
  transition: color var(--transition-base);
}

.footer__links a:hover {
  color: var(--text-primary);
}

.footer__bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding-top: 2rem;
  border-top: 1px solid var(--surface-border);
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

@media (min-width: 640px) {
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

.footer__socials {
  display: flex;
  gap: 1rem;
}

.footer__socials a {
  color: var(--text-tertiary);
  transition: color var(--transition-base);
}

.footer__socials a:hover {
  color: var(--color-primary-400);
}


/* ==========================================================================
   17. Animations & Keyframes
   ========================================================================== */

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-24px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(24px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-12px);
  }
}

@keyframes floatSlow {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
  }
  25% {
    transform: translateY(-6px) rotate(0.5deg);
  }
  75% {
    transform: translateY(6px) rotate(-0.5deg);
  }
}

@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(147, 51, 234, 0.2);
  }
  50% {
    box-shadow: 0 0 30px rgba(147, 51, 234, 0.4);
  }
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

@keyframes gradientShift {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

/* Orb floating animations for the hero */
@keyframes orbFloat1 {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  25% {
    transform: translate(30px, -40px) scale(1.05);
  }
  50% {
    transform: translate(-20px, 20px) scale(0.95);
  }
  75% {
    transform: translate(15px, 30px) scale(1.02);
  }
}

@keyframes orbFloat2 {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  33% {
    transform: translate(-40px, 25px) scale(1.08);
  }
  66% {
    transform: translate(25px, -30px) scale(0.96);
  }
}

@keyframes orbFloat3 {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  20% {
    transform: translate(20px, -15px) scale(1.03);
  }
  40% {
    transform: translate(-25px, -25px) scale(0.97);
  }
  60% {
    transform: translate(15px, 20px) scale(1.06);
  }
  80% {
    transform: translate(-10px, 10px) scale(0.98);
  }
}

/* Named animation utility classes */
.animate-fade-in {
  animation: fadeIn 400ms ease-out both;
}

.animate-fade-in-up {
  animation: fadeInUp 600ms ease-out both;
}

.animate-fade-in-down {
  animation: fadeInDown 500ms ease-out both;
}

.animate-fade-in-left {
  animation: fadeInLeft 600ms ease-out both;
}

.animate-fade-in-right {
  animation: fadeInRight 600ms ease-out both;
}

.animate-scale-in {
  animation: scaleIn 400ms ease-out both;
}

.animate-float {
  animation: float 6s ease-in-out infinite;
}

.animate-float-slow {
  animation: floatSlow 8s ease-in-out infinite;
}

.animate-pulse-glow {
  animation: pulseGlow 2s ease-in-out infinite;
}

.animate-shimmer {
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(147, 51, 234, 0.06) 50%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: shimmer 2s linear infinite;
}

/* Staggered animation delays for child items */
.stagger-children > *:nth-child(1) { animation-delay: 0ms; }
.stagger-children > *:nth-child(2) { animation-delay: 80ms; }
.stagger-children > *:nth-child(3) { animation-delay: 160ms; }
.stagger-children > *:nth-child(4) { animation-delay: 240ms; }
.stagger-children > *:nth-child(5) { animation-delay: 320ms; }
.stagger-children > *:nth-child(6) { animation-delay: 400ms; }
.stagger-children > *:nth-child(7) { animation-delay: 480ms; }
.stagger-children > *:nth-child(8) { animation-delay: 560ms; }


/* ==========================================================================
   18. Scroll & Intersection Observer (animate-on-scroll)
   ========================================================================== */

/*
 * Elements with .animate-on-scroll start invisible and translate down.
 * When an IntersectionObserver (from JS) adds .is-visible, they animate in.
 *
 * JS example:
 *   const observer = new IntersectionObserver((entries) => {
 *     entries.forEach(e => { if (e.isIntersecting) e.target.classList.add('is-visible'); });
 *   }, { threshold: 0.1 });
 *   document.querySelectorAll('.animate-on-scroll').forEach(el => observer.observe(el));
 */

.animate-on-scroll {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 700ms cubic-bezier(0.4, 0, 0.2, 1),
              transform 700ms cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Directional variants */
.animate-on-scroll--left {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity 700ms cubic-bezier(0.4, 0, 0.2, 1),
              transform 700ms cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll--left.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.animate-on-scroll--right {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity 700ms cubic-bezier(0.4, 0, 0.2, 1),
              transform 700ms cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll--right.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.animate-on-scroll--scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 700ms cubic-bezier(0.4, 0, 0.2, 1),
              transform 700ms cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll--scale.is-visible {
  opacity: 1;
  transform: scale(1);
}

/* Staggered scroll animations for lists / grids */
.animate-on-scroll.delay-1 { transition-delay: 100ms; }
.animate-on-scroll.delay-2 { transition-delay: 200ms; }
.animate-on-scroll.delay-3 { transition-delay: 300ms; }
.animate-on-scroll.delay-4 { transition-delay: 400ms; }
.animate-on-scroll.delay-5 { transition-delay: 500ms; }
.animate-on-scroll.delay-6 { transition-delay: 600ms; }


/* ==========================================================================
   19. Utilities
   ========================================================================== */

/* --- Visibility --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.hidden { display: none; }

/* --- Spacing Helpers --- */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mt-12 { margin-top: 3rem; }
.mt-16 { margin-top: 4rem; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-16 { margin-bottom: 4rem; }

/* --- Width Constraints --- */
.w-full { width: 100%; }

/* --- Rounded --- */
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-2xl { border-radius: var(--radius-2xl); }
.rounded-full { border-radius: var(--radius-full); }

/* --- Overflow --- */
.overflow-hidden { overflow: hidden; }

/* --- Relative / Absolute Positioning --- */
.relative { position: relative; }

/* --- Decorative Gradient Line --- */
.gradient-line {
  height: 2px;
  background: var(--gradient-primary);
  border: none;
  border-radius: var(--radius-full);
}

.gradient-line--thin {
  height: 1px;
}

/* --- Shimmer Skeleton (loading state) --- */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--surface-subtle) 25%,
    var(--surface-elevated) 50%,
    var(--surface-subtle) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s linear infinite;
  border-radius: var(--radius-md);
}

/* --- Testimonial / Quote --- */
.testimonial {
  position: relative;
  padding: 2rem;
  padding-left: 2.5rem;
}

.testimonial::before {
  content: '\201C';
  position: absolute;
  top: 0.75rem;
  left: 0;
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--color-primary-600);
  opacity: 0.4;
}

.testimonial__text {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--text-secondary);
  font-style: italic;
  margin-bottom: 1rem;
}

.testimonial__author {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.testimonial__role {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

/* --- Logo Cloud / Social Proof Strip --- */
.logo-cloud {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  opacity: 0.5;
  transition: opacity var(--transition-slow);
}

.logo-cloud:hover {
  opacity: 0.7;
}

.logo-cloud img {
  height: 1.75rem;
  filter: grayscale(1) brightness(2);
  transition: filter var(--transition-base);
}

.logo-cloud img:hover {
  filter: grayscale(0) brightness(1);
}

/* --- Stat / Metric Display --- */
.stat {
  text-align: center;
}

.stat__number {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 0.25rem;
}

.stat__label {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  font-weight: 500;
}

/* --- FAQ Accordion-like styles --- */
.faq-item {
  border-bottom: 1px solid var(--surface-border);
  padding: 1.25rem 0;
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  padding: 0;
  font-family: inherit;
  transition: color var(--transition-base);
}

.faq-question:hover {
  color: var(--color-primary-400);
}

.faq-question__icon {
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-tertiary);
  transition: transform var(--transition-base), color var(--transition-base);
}

.faq-item.is-open .faq-question__icon {
  transform: rotate(45deg);
  color: var(--color-primary-400);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow), opacity var(--transition-slow);
  opacity: 0;
}

.faq-item.is-open .faq-answer {
  max-height: 500px;
  opacity: 1;
}

.faq-answer__content {
  padding-top: 1rem;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* --- CTA (Call to Action) Banner --- */
.cta-banner {
  position: relative;
  overflow: hidden;
  padding: clamp(3rem, 6vw, 5rem) clamp(1.5rem, 4vw, 3rem);
  border-radius: var(--radius-3xl);
  text-align: center;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-primary);
  z-index: 0;
}

.cta-banner::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle 300px at 20% 30%, rgba(255, 255, 255, 0.08), transparent),
    radial-gradient(circle 200px at 80% 70%, rgba(255, 255, 255, 0.05), transparent);
  z-index: 0;
}

.cta-banner > * {
  position: relative;
  z-index: 1;
}

.cta-banner h2,
.cta-banner h3 {
  color: #fff;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.8);
}

/* --- Number Counter Animation Placeholder --- */
.counter {
  font-variant-numeric: tabular-nums;
}


/* ==========================================================================
   20. Responsive Breakpoints
   ========================================================================== */

/* Mobile-first approach: base styles are mobile, then we scale up */

/* --- Small (sm): 640px --- */
@media (min-width: 640px) {
  .sm\:hidden { display: none; }
  .sm\:block { display: block; }
  .sm\:flex { display: flex; }
  .sm\:grid-2 { grid-template-columns: repeat(2, 1fr); }
  .sm\:text-left { text-align: left; }
}

/* --- Medium (md): 768px --- */
@media (min-width: 768px) {
  .md\:hidden { display: none; }
  .md\:block { display: block; }
  .md\:flex { display: flex; }
  .md\:grid-2 { grid-template-columns: repeat(2, 1fr); }
  .md\:grid-3 { grid-template-columns: repeat(3, 1fr); }
  .md\:text-left { text-align: left; }

  .hero__subtitle {
    font-size: 1.25rem;
  }
}

/* --- Large (lg): 1024px --- */
@media (min-width: 1024px) {
  .lg\:hidden { display: none; }
  .lg\:block { display: block; }
  .lg\:flex { display: flex; }
  .lg\:grid-3 { grid-template-columns: repeat(3, 1fr); }
  .lg\:grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* --- Extra Large (xl): 1280px --- */
@media (min-width: 1280px) {
  .xl\:hidden { display: none; }
  .xl\:block { display: block; }
  .xl\:flex { display: flex; }
  .xl\:grid-4 { grid-template-columns: repeat(4, 1fr); }
}


/* ==========================================================================
   21. Accessibility & Reduced Motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .animate-on-scroll {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .animate-on-scroll--left,
  .animate-on-scroll--right,
  .animate-on-scroll--scale {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .hero__orb {
    animation: none;
    opacity: 0.3;
  }

  .screenshot-frame:hover {
    transform: none;
  }
}

/* High contrast mode adjustments */
@media (prefers-contrast: high) {
  :root {
    --surface-border: rgba(255, 255, 255, 0.2);
    --surface-border-strong: rgba(255, 255, 255, 0.4);
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
  }

  .btn-gradient {
    border: 2px solid #fff;
  }

  .card,
  .card-premium,
  .card-featured,
  .card-glass {
    border-width: 2px;
  }
}

/* Focus-visible styling for keyboard navigation */
:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* Remove outline for mouse clicks */
:focus:not(:focus-visible) {
  outline: none;
}


/* ==========================================================================
   22. Page-Specific Styles
   ========================================================================== */

/* --- Nav Logo Mark --- */
.nav__logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  font-weight: 800;
  font-size: 0.9375rem;
  color: #fff;
  flex-shrink: 0;
}

/* --- Section Alternating Background --- */
.section--alt {
  background-color: var(--surface-elevated);
}

/* --- Section Header --- */
.section-header {
  text-align: center;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-header h2 {
  margin-bottom: 0.75rem;
}

.section-header p {
  max-width: 50ch;
  margin-left: auto;
  margin-right: auto;
}

/* Section Badge */
.section-header__badge {
  display: inline-flex;
  align-items: center;
  padding: 0.3125rem 0.875rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-primary-300);
  background: rgba(147, 51, 234, 0.1);
  border: 1px solid rgba(147, 51, 234, 0.2);
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

/* --- Problem Cards --- */
.problem-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-bottom: clamp(3rem, 6vw, 5rem);
}

@media (min-width: 768px) {
  .problem-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.problem-card {
  background: rgba(26, 22, 37, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-2xl);
  padding: 2rem;
}

.problem-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-lg);
  margin-bottom: 1rem;
}

.problem-card__icon--danger {
  background: rgba(239, 68, 68, 0.12);
  color: var(--color-danger-400);
}

.problem-card h3 {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.problem-card p {
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* --- Solution Banner --- */
.solution-banner {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(147, 51, 234, 0.08), rgba(192, 38, 211, 0.05));
  border: 1px solid rgba(147, 51, 234, 0.15);
  border-radius: var(--radius-3xl);
  padding: clamp(2rem, 5vw, 3.5rem);
}

.solution-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
}

.solution-banner h3 {
  font-size: clamp(1.25rem, 2vw + 0.5rem, 1.625rem);
  margin-bottom: 0.75rem;
}

.solution-banner p {
  max-width: 60ch;
  margin-bottom: 2rem;
}

.solution-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .solution-stats {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* --- Question Types Grid --- */
.qt-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 640px) {
  .qt-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .qt-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .qt-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

.qt-card {
  background: var(--surface-elevated);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-2xl);
  padding: 1.5rem;
  text-align: center;
  transition: border-color var(--transition-base),
              box-shadow var(--transition-slow),
              transform var(--transition-spring);
}

.qt-card:hover {
  border-color: var(--surface-border-strong);
  box-shadow: var(--shadow-premium);
  transform: translateY(-4px);
}

.qt-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-lg);
  margin-bottom: 1rem;
}

.qt-card__icon--primary {
  background: linear-gradient(135deg, rgba(147, 51, 234, 0.15), rgba(147, 51, 234, 0.08));
  color: var(--color-primary-400);
}

.qt-card__icon--accent {
  background: linear-gradient(135deg, rgba(192, 38, 211, 0.15), rgba(192, 38, 211, 0.08));
  color: var(--color-accent-400);
}

.qt-card h3 {
  font-size: 1rem;
  margin-bottom: 0.375rem;
}

.qt-card p {
  font-size: 0.8125rem;
  line-height: 1.5;
}

/* --- Showcase (alternating text + image rows) --- */
.showcase {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
  margin-bottom: clamp(4rem, 8vw, 6rem);
}

.showcase:last-child {
  margin-bottom: 0;
}

@media (min-width: 768px) {
  .showcase {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}

@media (min-width: 1024px) {
  .showcase {
    gap: 4rem;
  }
}

@media (min-width: 768px) {
  .showcase--reverse .showcase__media {
    order: -1;
  }
}

.showcase__label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary-400);
  margin-bottom: 0.625rem;
}

.showcase__content h3 {
  font-size: clamp(1.25rem, 2vw + 0.5rem, 1.625rem);
  margin-bottom: 0.75rem;
}

.showcase__content > p {
  margin-bottom: 1.5rem;
}

.showcase__list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.showcase__list li {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.showcase__list li svg {
  flex-shrink: 0;
  margin-top: 0.125rem;
  color: var(--color-success-400);
}

/* --- Pricing Toggle --- */
.pricing-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.pricing-toggle__label {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pricing-toggle__switch {
  position: relative;
  width: 3.25rem;
  height: 1.75rem;
  background: var(--surface-subtle);
  border: 1px solid var(--surface-border-strong);
  border-radius: var(--radius-full);
  cursor: pointer;
  padding: 0;
  appearance: none;
  -webkit-appearance: none;
  transition: background var(--transition-base), border-color var(--transition-base);
}

.pricing-toggle__switch::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 1.25rem;
  height: 1.25rem;
  background: var(--text-primary);
  border-radius: var(--radius-full);
  transition: transform var(--transition-base);
}

.pricing-toggle__switch.is-active {
  background: var(--color-primary-600);
  border-color: var(--color-primary-500);
}

.pricing-toggle__switch.is-active::after {
  transform: translateX(1.5rem);
}

.pricing-save {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--color-success-400);
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.15);
  border-radius: var(--radius-full);
  padding: 0.125rem 0.5rem;
}

/* Pricing yearly note */
.pricing-card__billing-note {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  margin-bottom: 1.5rem;
  display: none;
}

.pricing-card__billing-note.is-visible {
  display: block;
}

/* Pricing comparison note */
.pricing-note {
  text-align: center;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-top: 2.5rem;
}

/* --- Testimonial Grid --- */
.testimonial-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .testimonial-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.testimonial-card {
  background: rgba(26, 22, 37, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-2xl);
  padding: 2rem;
}

.testimonial__stars {
  color: #fbbf24;
  font-size: 1rem;
  letter-spacing: 0.125rem;
  margin-bottom: 1rem;
}

.testimonial__quote {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-secondary);
  font-style: italic;
  margin-bottom: 1.25rem;
}

.testimonial__footer {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.testimonial__avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, rgba(147, 51, 234, 0.2), rgba(192, 38, 211, 0.15));
  color: var(--color-primary-300);
  font-weight: 700;
  font-size: 0.875rem;
  flex-shrink: 0;
}

.testimonial__name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.testimonial__info {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
}

/* --- CTA Section --- */
.section-cta {
  padding: var(--section-py-lg) 0;
}

.section-cta .cta-banner {
  max-width: 1280px;
  margin: 0 auto;
}

/* Button variant: outline on gradient background */
.btn-outline-light {
  color: rgba(255, 255, 255, 0.9);
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
}

/* --- Hero Note --- */
.hero__note {
  font-size: 0.8125rem;
  color: var(--text-tertiary);
  margin-top: 1rem;
}

/* --- Footer Columns --- */
.footer__cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 640px) {
  .footer__cols {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer__col {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.footer__col a {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  text-decoration: none;
  transition: color var(--transition-base);
}

.footer__col a:hover {
  color: var(--text-primary);
}

/* --- Comparison Table Icon Helpers --- */
.comparison-table td .icon-with-text {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}

.icon-check {
  color: var(--color-success-400);
}

.icon-cross {
  color: var(--color-danger-400);
}

.icon-partial {
  color: #fbbf24;
}

/* --- Price Animation --- */
.price--animating {
  transition: transform 100ms ease-out;
  transform: scale(1.05);
}

/* --- Lazy Image Fade --- */
img[loading="lazy"] {
  opacity: 0;
  transition: opacity 400ms ease-out;
}

img[loading="lazy"].img--loaded,
img[loading="eager"] {
  opacity: 1;
}

/* --- Nav Active Link --- */
.nav__link.is-active {
  color: var(--text-primary);
}

.nav__link.is-active::after {
  width: 100%;
}