/* ============================================================
   AboundCloud Design System
   Futuristic SaaS — Dark, Sophisticated, Premium
   ============================================================ */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimeLegibility;
  overflow-x: hidden;
}

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

input, button, textarea, select {
  font: inherit;
}

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

ul, ol {
  list-style: none;
}

/* ---- Design Tokens ---- */
:root {
  /* Colors */
  --color-bg: #0a0a1a;
  --color-bg-elevated: #0f0f2a;
  --color-surface: rgba(255,255,255,0.04);
  --color-surface-hover: rgba(255,255,255,0.08);
  --color-border: rgba(255,255,255,0.08);
  --color-border-hover: rgba(255,255,255,0.15);
  --color-text-primary: #ffffff;
  --color-text-secondary: #94a3b8;
  --color-text-muted: #64748b;
  --color-accent: #3b82f6;
  --color-accent-2: #06b6d4;
  --color-violet: #8b5cf6;
  --color-success: #10b981;

  /* Gradients */
  --gradient-accent: linear-gradient(135deg, #3b82f6, #06b6d4);
  --gradient-violet: linear-gradient(135deg, #8b5cf6, #a855f7);
  --gradient-hero: linear-gradient(180deg, rgba(59,130,246,0.08) 0%, transparent 50%);
  --gradient-text: linear-gradient(135deg, #3b82f6, #06b6d4);

  /* Typography */
  --font-heading: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-glow-blue: 0 0 60px rgba(59, 130, 246, 0.15);
  --shadow-glow-violet: 0 0 60px rgba(139, 92, 246, 0.15);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-card-hover: 0 8px 40px rgba(0, 0, 0, 0.4);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-base: 200ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 350ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);

  /* Layout */
  --max-width: 1200px;
  --nav-height: 72px;
}

/* ---- Base ---- */
body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text-primary);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.125rem; }

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

/* ---- Gradient Text Utility ---- */
.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

/* ---- Glow Utility ---- */
.glow {
  position: relative;
}

.glow::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120%;
  height: 120%;
  background: radial-gradient(ellipse, rgba(59,130,246,0.12) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
}

/* ---- Badge ---- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: var(--radius-full);
}

/* ============================================================
   Navigation
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: background var(--transition-base),
              border-color var(--transition-base),
              backdrop-filter var(--transition-base);
  border-bottom: 1px solid transparent;
}

.nav--scrolled {
  background: rgba(10, 10, 26, 0.8);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  border-bottom-color: var(--color-border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.nav__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.nav__logo-img {
  height: 32px;
  width: auto;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav__links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

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

.nav__cta {
  margin-left: var(--space-lg);
}

.nav__toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-primary);
  cursor: pointer;
  padding: var(--space-sm);
  z-index: 1001;
}

.nav__toggle svg {
  width: 24px;
  height: 24px;
}

.nav__toggle-icon--close {
  display: none;
}

.nav__toggle.active .nav__toggle-icon--menu {
  display: none;
}

.nav__toggle.active .nav__toggle-icon--close {
  display: block;
}

/* Mobile nav */
@media (max-width: 768px) {
  .nav__toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .nav__links {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 280px;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: calc(var(--nav-height) + var(--space-xl)) var(--space-xl) var(--space-xl);
    background: var(--color-bg-elevated);
    border-left: 1px solid var(--color-border);
    transform: translateX(100%);
    visibility: hidden;
    transition: transform 300ms var(--ease-out), visibility 0s 300ms;
    z-index: 1000;
    overflow-y: auto;
  }

  .nav__links.open {
    transform: translateX(0);
    visibility: visible;
    transition: transform 300ms var(--ease-out), visibility 0s 0s;
  }

  .nav__links a {
    display: block;
    width: 100%;
    padding: var(--space-md) 0;
    font-size: 1rem;
    border-bottom: 1px solid var(--color-border);
  }

  .nav__cta {
    margin-left: 0;
    margin-top: var(--space-lg);
    width: 100%;
  }

  .nav__cta .btn {
    width: 100%;
    justify-content: center;
  }
}

/* Nav overlay for mobile */
.nav__overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 300ms var(--ease-out);
}

.nav__overlay.open {
  opacity: 1;
  pointer-events: auto;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: transform var(--transition-fast),
              box-shadow var(--transition-fast),
              background var(--transition-fast),
              border-color var(--transition-fast),
              opacity var(--transition-fast);
}

.btn:active {
  transform: translateY(0) scale(0.98);
}

.btn--primary {
  background: var(--gradient-accent);
  color: #fff;
  box-shadow: 0 2px 16px rgba(59, 130, 246, 0.25);
}

.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 24px rgba(59, 130, 246, 0.35);
}

.btn--secondary {
  background: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

.btn--secondary:hover {
  color: var(--color-text-primary);
  border-color: var(--color-border-hover);
  background: var(--color-surface);
  transform: translateY(-1px);
}

.btn--large {
  padding: 14px 32px;
  font-size: 1rem;
  border-radius: var(--radius-lg);
}

.btn--large.btn--primary {
  box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
}

.btn--large.btn--primary:hover {
  box-shadow: 0 6px 32px rgba(59, 130, 246, 0.4);
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: calc(var(--nav-height) + var(--space-4xl)) var(--space-xl) var(--space-4xl);
  text-align: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* Dot grid pattern */
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(ellipse 60% 60% at 50% 40%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 60% 60% at 50% 40%, black 20%, transparent 70%);
}

/* Glow orbs */
.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.5;
}

.hero__glow--blue {
  width: 600px;
  height: 600px;
  top: -10%;
  left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(59,130,246,0.15), transparent 70%);
}

.hero__glow--violet {
  width: 400px;
  height: 400px;
  top: 20%;
  right: -5%;
  background: radial-gradient(circle, rgba(139,92,246,0.1), transparent 70%);
}

.hero__glow--cyan {
  width: 350px;
  height: 350px;
  bottom: 10%;
  left: -5%;
  background: radial-gradient(circle, rgba(6,182,212,0.08), transparent 70%);
}

/* Gradient wash at top */
.hero__gradient {
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
}

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

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: var(--space-xl);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
}

.hero__title {
  margin-bottom: var(--space-lg);
  font-size: clamp(2.75rem, 7vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.hero__subtitle {
  max-width: 600px;
  margin: 0 auto var(--space-2xl);
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* ============================================================
   Sections
   ============================================================ */
.section {
  position: relative;
  padding: var(--space-5xl) var(--space-xl);
}

.section__inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section__header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto var(--space-3xl);
}

.section__eyebrow {
  display: inline-block;
  margin-bottom: var(--space-md);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
}

.section__title {
  margin-bottom: var(--space-md);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.section__subtitle {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ============================================================
   Grid Helpers
   ============================================================ */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

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

/* ============================================================
   Cards
   ============================================================ */
.card {
  position: relative;
  padding: var(--space-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: transform var(--transition-base),
              border-color var(--transition-base),
              box-shadow var(--transition-base),
              background var(--transition-base);
}

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

/* Feature card */
.card--feature {
  padding: var(--space-2xl) var(--space-xl);
}

.card--feature .card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-lg);
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.15);
  border-radius: var(--radius-md);
  color: var(--color-accent);
}

.card--feature .card__icon svg,
.card--feature .card__icon i {
  width: 22px;
  height: 22px;
}

.card--feature .card__title {
  margin-bottom: var(--space-sm);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.card--feature .card__desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ============================================================
   Pricing Card
   ============================================================ */
.pricing-card {
  position: relative;
  padding: var(--space-3xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  overflow: hidden;
}

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

.pricing-card__header {
  margin-bottom: var(--space-2xl);
}

.pricing-card__name {
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.pricing-card__price {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-text-primary);
}

.pricing-card__price span {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

.pricing-card__annual {
  margin-top: var(--space-xs);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.pricing-card__annual strong {
  color: var(--color-success);
}

.pricing-card__divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-xl) 0;
}

.pricing-card__features {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.pricing-card__feature {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.pricing-card__feature svg {
  width: 18px;
  height: 18px;
  color: var(--color-success);
  flex-shrink: 0;
}

.pricing-card__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: center;
}

.pricing-card__actions .btn {
  width: 100%;
}

.pricing-card__link {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.pricing-card__link:hover {
  color: var(--color-accent);
}

/* ============================================================
   Testimonial
   ============================================================ */
.testimonial {
  position: relative;
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.testimonial__quote {
  font-size: clamp(1.15rem, 2.5vw, 1.4rem);
  font-style: italic;
  color: var(--color-text-primary);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
}

.testimonial__quote::before {
  content: '\201C';
  display: block;
  font-size: 4rem;
  line-height: 1;
  margin-bottom: var(--space-sm);
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-style: normal;
}

.testimonial__author {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.testimonial__role {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.testimonial__stars {
  display: flex;
  justify-content: center;
  gap: 4px;
  margin-bottom: var(--space-lg);
  color: #fbbf24;
}

.testimonial__stars svg {
  width: 20px;
  height: 20px;
}

/* ============================================================
   CTA Banner
   ============================================================ */
.cta-banner {
  position: relative;
  text-align: center;
  padding: var(--space-4xl) var(--space-xl);
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent, rgba(59,130,246,0.06) 50%, transparent);
  pointer-events: none;
}

.cta-banner__inner {
  position: relative;
  z-index: 1;
  max-width: 600px;
  margin: 0 auto;
}

.cta-banner__title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  margin-bottom: var(--space-lg);
  letter-spacing: -0.02em;
}

.cta-banner__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* ============================================================
   Value Props (Why section)
   ============================================================ */
.value-card {
  padding: var(--space-2xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: border-color var(--transition-base);
}

.value-card:hover {
  border-color: var(--color-border-hover);
}

.value-card__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin-bottom: var(--space-lg);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-accent);
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: var(--radius-sm);
}

.value-card__title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  color: var(--color-text-primary);
}

.value-card__desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-4xl) var(--space-xl) var(--space-2xl);
  background: var(--color-bg);
}

.footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer__brand {
  max-width: 300px;
}

.footer__brand-logo {
  height: 28px;
  width: auto;
  margin-bottom: var(--space-md);
}

.footer__brand p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.footer__links {
  display: flex;
  gap: var(--space-3xl);
}

.footer__link-group h4 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.footer__link-group a {
  display: block;
  padding: 4px 0;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

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

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--color-border);
}

.footer__copyright {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.footer__legal-links {
  display: flex;
  gap: var(--space-lg);
}

.footer__legal-links a {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer__legal-links a:hover {
  color: var(--color-text-secondary);
}

.footer__partner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding-top: var(--space-xl);
}

.footer__partner-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.footer__partner a {
  display: inline-flex;
  align-items: center;
  opacity: 0.5;
  transition: opacity var(--transition-fast);
}

.footer__partner a:hover {
  opacity: 0.8;
}

.footer__partner img {
  height: 20px;
  width: auto;
}

.footer__attribution {
  width: 100%;
  text-align: center;
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.footer__attribution a {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer__attribution a:hover {
  color: var(--color-text-secondary);
}

@media (max-width: 768px) {
  .footer__top {
    flex-direction: column;
    gap: var(--space-2xl);
  }

  .footer__links {
    flex-direction: column;
    gap: var(--space-xl);
  }

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

  .footer__legal-links {
    justify-content: center;
  }
}

/* ============================================================
   Scroll Animations
   ============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease-out),
              transform 0.6s var(--ease-out);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered delays for children */
.fade-in[data-delay="1"] { transition-delay: 0.05s; }
.fade-in[data-delay="2"] { transition-delay: 0.1s; }
.fade-in[data-delay="3"] { transition-delay: 0.15s; }
.fade-in[data-delay="4"] { transition-delay: 0.2s; }
.fade-in[data-delay="5"] { transition-delay: 0.25s; }
.fade-in[data-delay="6"] { transition-delay: 0.3s; }
.fade-in[data-delay="7"] { transition-delay: 0.35s; }
.fade-in[data-delay="8"] { transition-delay: 0.4s; }

/* ============================================================
   Pricing Toggle (for pricing page)
   ============================================================ */
.pricing-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-md);
  padding: 4px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
}

.pricing-toggle__option {
  padding: 8px 20px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--transition-fast),
              color var(--transition-fast);
}

.pricing-toggle__option.active {
  background: var(--gradient-accent);
  color: #fff;
}

/* ============================================================
   FAQ (for pricing page)
   ============================================================ */
.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-xl) 0;
}

.faq-item__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text-primary);
  text-align: left;
}

.faq-item__question svg {
  width: 20px;
  height: 20px;
  color: var(--color-text-muted);
  transition: transform var(--transition-base);
  flex-shrink: 0;
}

.faq-item.open .faq-item__question svg {
  transform: rotate(180deg);
}

.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 350ms var(--ease-out),
              padding 350ms var(--ease-out);
}

.faq-item.open .faq-item__answer {
  max-height: 300px;
  padding-top: var(--space-md);
}

.faq-item__answer p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ============================================================
   Feature Detail Cards (for features page)
   ============================================================ */
.feature-category {
  margin-bottom: var(--space-4xl);
}

.feature-category__header {
  margin-bottom: var(--space-2xl);
}

.feature-category__title {
  font-size: 1.75rem;
  font-weight: 700;
}

.feature-detail-card {
  padding: var(--space-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-base);
}

.feature-detail-card:hover {
  border-color: var(--color-border-hover);
}

.feature-detail-card__title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-xs);
}

.feature-detail-card__desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ============================================================
   Calendar Embed (for demo page)
   ============================================================ */
.calendar-embed {
  width: 100%;
  max-width: 700px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}

.calendar-embed iframe {
  width: 100%;
  height: 700px;
  border: none;
}

/* ============================================================
   Utility Classes
   ============================================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-muted { color: var(--color-text-muted); }
.text-secondary { color: var(--color-text-secondary); }
.text-accent { color: var(--color-accent); }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }

.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

.mx-auto { margin-left: auto; margin-right: auto; }
.max-w-sm { max-width: 480px; }
.max-w-md { max-width: 640px; }
.max-w-lg { max-width: 800px; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

/* Section dividers */
.section--border-top {
  border-top: 1px solid var(--color-border);
}

/* Responsive section spacing */
@media (max-width: 768px) {
  .section {
    padding: var(--space-3xl) var(--space-md);
  }

  .hero {
    padding: calc(var(--nav-height) + var(--space-2xl)) var(--space-md) var(--space-2xl);
    min-height: auto;
    min-height: 100svh;
  }

  .hero__title {
    font-size: clamp(2.25rem, 8vw, 3.5rem);
  }
}