/* ===================================================================
   RealizeOS Landing Page — Design System
   Aligned with Realization brand: calm authority, professional warmth
   =================================================================== */

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

:root {
  /* Color palette — sophisticated, dark-forward */
  --color-bg: #0a0a0f;
  --color-bg-elevated: #12121a;
  --color-bg-card: #1a1a24;
  --color-bg-card-hover: #22222e;
  --color-surface: #2a2a36;

  --color-text: #e8e8ed;
  --color-text-secondary: #9a9ab0;
  --color-text-muted: #6b6b80;

  --color-accent: #ffcc00;        /* Yellow — bold, energetic */
  --color-accent-hover: #ffd633;
  --color-accent-subtle: rgba(255, 204, 0, 0.10);
  --color-accent-text: #0a0a0f;  /* Dark text on yellow backgrounds */

  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-hover: rgba(255, 255, 255, 0.15);

  /* Typography */
  --font-body: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Layout */
  --max-width: 1200px;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.65;
}

/* --- Container --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.section__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  text-align: center;
  margin-bottom: var(--space-md);
}

.section__subtitle {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-3xl);
  line-height: 1.7;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s var(--ease);
  white-space: nowrap;
}

.btn--sm { padding: 0.5rem 1rem; font-size: 0.875rem; }
.btn--lg { padding: 0.875rem 1.75rem; font-size: 1rem; }

.btn--primary {
  background: var(--color-accent);
  color: var(--color-accent-text);
}
.btn--primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 0 20px rgba(255, 204, 0, 0.3), 0 0 60px rgba(255, 204, 0, 0.1);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-hover);
}
.btn--outline:hover {
  background: var(--color-bg-card);
  border-color: var(--color-accent);
  color: var(--color-accent-hover);
}

/* --- Nav --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}

.nav__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav__logo {
  text-decoration: none;
  font-size: 1.25rem;
  font-weight: 700;
}
.nav__logo-realize { color: var(--color-text); }
.nav__logo-os { color: var(--color-accent); }

.nav__links {
  display: flex;
  gap: var(--space-xl);
}
.nav__links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}
.nav__links a:hover { color: var(--color-text); }

.nav__toggle { display: none; background: none; border: none; cursor: pointer; }
.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  margin: 5px 0;
  transition: 0.3s;
}

/* --- Hero --- */
.hero {
  padding: calc(64px + var(--space-4xl)) 0 var(--space-4xl);
  text-align: center;
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-elevated) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 204, 0, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero__badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-accent);
  background: var(--color-accent-subtle);
  padding: 0.35rem 1rem;
  border-radius: 100px;
  margin-bottom: var(--space-xl);
  letter-spacing: 0.02em;
}

.hero__title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  margin-bottom: var(--space-lg);
  letter-spacing: -0.03em;
}
.hero__accent { color: var(--color-accent); }

.hero__subtitle {
  font-size: 1.2rem;
  color: var(--color-text-secondary);
  max-width: 620px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-3xl);
}

.hero__proof {
  display: flex;
  justify-content: center;
  gap: var(--space-2xl);
  flex-wrap: wrap;
}

.hero__stat {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}
.hero__stat strong {
  display: block;
  font-size: 1.5rem;
  color: var(--color-text);
  font-weight: 700;
  margin-bottom: 2px;
}

/* --- Pain Section --- */
.pain {
  padding: var(--space-4xl) 0;
}

.pain__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.pain__card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-xl);
  transition: border-color 0.2s;
}
.pain__card:hover { border-color: var(--color-border-hover); }

.pain__icon {
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.pain__card h3 {
  font-size: 1.15rem;
  margin-bottom: var(--space-sm);
}

.pain__card p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

.pain__transition {
  text-align: center;
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 640px;
  margin: 0 auto;
  font-style: italic;
}

/* --- FABRIC Section --- */
.fabric {
  padding: var(--space-4xl) 0;
  background: var(--color-bg-elevated);
}

.fabric__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: var(--space-lg);
}

.fabric__item {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
  padding: var(--space-lg);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: all 0.25s var(--ease);
}
.fabric__item:hover {
  border-color: var(--color-accent);
  background: var(--color-bg-card-hover);
  transform: translateY(-2px);
}

.fabric__letter {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
  min-width: 48px;
  text-align: center;
  line-height: 1;
  padding-top: 2px;
}

.fabric__content h3 {
  font-size: 1.1rem;
  margin-bottom: var(--space-xs);
}
.fabric__content p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

/* --- Features --- */
.features {
  padding: var(--space-4xl) 0;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-xl);
}

.feature__card {
  padding: var(--space-xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: all 0.25s var(--ease);
}
.feature__card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-2px);
}

.feature__icon {
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.feature__card h3 {
  font-size: 1.1rem;
  margin-bottom: var(--space-sm);
}

.feature__card p {
  color: var(--color-text-secondary);
  font-size: 0.93rem;
  line-height: 1.65;
}

/* --- Pricing --- */
.pricing {
  padding: var(--space-4xl) 0;
  background: var(--color-bg-elevated);
}

.pricing__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  align-items: start;
  margin-bottom: var(--space-2xl);
}

.pricing__card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  position: relative;
  transition: all 0.25s var(--ease);
}
.pricing__card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-2px);
}

.pricing__card--featured {
  border-color: var(--color-accent);
  background: linear-gradient(180deg, var(--color-bg-card) 0%, rgba(255, 204, 0, 0.04) 100%);
}

.pricing__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: var(--color-accent-text);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.3rem 1rem;
  border-radius: 100px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.pricing__header h3 {
  font-size: 1.3rem;
  margin-bottom: var(--space-xs);
}
.pricing__desc {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  margin-bottom: var(--space-lg);
}

.pricing__price {
  margin-bottom: var(--space-xl);
}
.pricing__amount {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}
.pricing__period {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-left: var(--space-xs);
}

.pricing__features {
  list-style: none;
  margin-bottom: var(--space-xl);
}
.pricing__features li {
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.93rem;
  color: var(--color-text-secondary);
}
.pricing__features li:last-child { border-bottom: none; }
.pricing__features li strong { color: var(--color-text); }

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

.pricing__comparison {
  text-align: center;
}
.pricing__compare-note {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  font-style: italic;
  max-width: 640px;
  margin: 0 auto;
}

/* --- How It Works --- */
.how {
  padding: var(--space-4xl) 0;
}

.how__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-2xl);
}

.how__step { text-align: center; }

.how__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-lg);
}

.how__step h3 {
  font-size: 1.15rem;
  margin-bottom: var(--space-sm);
}

.how__step p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  max-width: 340px;
  margin: 0 auto;
}

/* --- FAQ --- */
.faq {
  padding: var(--space-4xl) 0;
  background: var(--color-bg-elevated);
}

.faq__list {
  max-width: 720px;
  margin: 0 auto;
}

.faq__item {
  border-bottom: 1px solid var(--color-border);
}

.faq__question {
  width: 100%;
  padding: var(--space-lg) 0;
  background: none;
  border: none;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color 0.2s;
}
.faq__question:hover { color: var(--color-accent-hover); }

.faq__question::after {
  content: '+';
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--color-text-muted);
  transition: transform 0.3s var(--ease);
}
.faq__question[aria-expanded="true"]::after {
  content: '\2212';
  color: var(--color-accent);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s var(--ease), padding 0.35s var(--ease);
}
.faq__answer.open {
  max-height: 500px;
  padding-bottom: var(--space-lg);
}

.faq__answer p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: var(--space-sm);
}
.faq__answer p:last-child { margin-bottom: 0; }

/* --- Final CTA + Email --- */
.final-cta {
  padding: var(--space-4xl) 0;
  text-align: center;
}

.final-cta__main {
  margin-bottom: var(--space-3xl);
}

.final-cta__main h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: var(--space-md);
}

.final-cta__main p {
  color: var(--color-text-secondary);
  font-size: 1.1rem;
  margin-bottom: var(--space-xl);
}

.final-cta__email {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  max-width: 540px;
  margin: 0 auto;
}

.final-cta__email h3 {
  font-size: 1.2rem;
  margin-bottom: var(--space-sm);
}

.final-cta__email p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  margin-bottom: var(--space-lg);
}

.email-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.email-form__fields {
  display: flex;
  gap: var(--space-sm);
}

.email-form__input {
  flex: 1;
  padding: 0.75rem 1rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border-hover);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s;
}
.email-form__input--full { width: 100%; }
.email-form__input:focus { border-color: var(--color-accent); }
.email-form__input::placeholder { color: var(--color-text-muted); }

.email-form__btn { width: 100%; }

.email-form__success {
  text-align: center;
  padding: var(--space-lg) 0;
}
.email-form__success p {
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: 0;
}
.email-form__error p {
  color: #ef4444;
  font-size: 0.9rem;
  text-align: center;
}

/* --- Demo Video --- */
.demo {
  padding: var(--space-3xl) 0;
}

.demo__player {
  max-width: 800px;
  margin: 0 auto;
  aspect-ratio: 16/9;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color 0.3s;
  overflow: hidden;
}
.demo__player:hover { border-color: var(--color-accent); }

.demo__placeholder {
  text-align: center;
  color: var(--color-text-muted);
}
.demo__play-btn {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-accent-text);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
  transition: transform 0.2s, box-shadow 0.2s;
}
.demo__player:hover .demo__play-btn {
  transform: scale(1.1);
  box-shadow: 0 0 30px rgba(255, 204, 0, 0.35);
}
.demo__duration {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
  display: block;
}

/* --- Use Cases --- */
.usecases {
  padding: var(--space-4xl) 0;
  background: var(--color-bg-elevated);
}

.usecases__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-lg);
}

.usecase__card {
  padding: var(--space-xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-align: center;
  transition: all 0.25s var(--ease);
}
.usecase__card:hover {
  border-color: var(--color-accent);
  transform: translateY(-3px);
}

.usecase__icon {
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.usecase__card h3 {
  font-size: 1rem;
  margin-bottom: var(--space-sm);
}
.usecase__card p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* --- Comparison --- */
.comparison {
  padding: var(--space-4xl) 0;
}

.comparison__table {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  max-width: 900px;
  margin: var(--space-2xl) auto 0;
}

.comparison__col {
  padding: var(--space-xl);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-align: center;
}
.comparison__col--featured {
  border-color: var(--color-accent);
  background: linear-gradient(180deg, var(--color-bg-card) 0%, rgba(255, 204, 0, 0.04) 100%);
}

.comparison__header {
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: var(--space-md);
  color: var(--color-accent);
}
.comparison__header--muted { color: var(--color-text-muted); }

.comparison__price {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: var(--space-lg);
}
.comparison__price span {
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--color-text-muted);
}

.comparison__col ul {
  list-style: none;
  text-align: left;
}
.comparison__col li {
  padding: var(--space-xs) 0;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
}
.comparison__col li:last-child { border-bottom: none; }

/* --- Testimonials --- */
.testimonials {
  padding: var(--space-4xl) 0;
  background: var(--color-bg-elevated);
}

.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.testimonial__card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-xl);
}

.testimonial__text {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
  font-style: italic;
}

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

.testimonial__avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.testimonial__author strong {
  display: block;
  font-size: 0.9rem;
}
.testimonial__author span {
  color: var(--color-text-muted);
  font-size: 0.8rem;
}

.testimonials__note {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-style: italic;
}

/* --- Founder --- */
.founder {
  padding: var(--space-4xl) 0;
}

.founder__content {
  max-width: 720px;
  margin: 0 auto;
}

.founder__text h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: var(--space-lg);
}

.founder__text p {
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: var(--space-md);
}

.founder__meta {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}
.founder__meta strong {
  display: block;
  font-size: 1.1rem;
  margin-bottom: 2px;
}
.founder__meta span {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}
.founder__meta a {
  color: var(--color-accent);
  text-decoration: none;
}

.founder__links {
  display: flex;
  gap: var(--space-lg);
  margin-top: var(--space-sm);
}
.founder__links a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.2s;
}
.founder__links a:hover { color: var(--color-accent); }

/* --- Guarantee Badge --- */
.pricing__guarantee {
  text-align: center;
  margin-top: var(--space-md);
  color: var(--color-text-muted);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
}
.pricing__guarantee::before {
  content: '\2713 ';
  color: var(--color-accent);
}

/* --- Exit-Intent Popup --- */
.popup-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.popup {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  max-width: 440px;
  width: 100%;
  position: relative;
  animation: popupIn 0.3s var(--ease);
}

@keyframes popupIn {
  from { opacity: 0; transform: scale(0.95) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.popup__close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
}
.popup__close:hover { color: var(--color-text); }

.popup h3 {
  font-size: 1.3rem;
  margin-bottom: var(--space-sm);
}
.popup p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  margin-bottom: var(--space-lg);
  line-height: 1.6;
}

.popup__note {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: var(--space-sm);
  margin-bottom: 0;
}

/* --- Mobile Sticky CTA --- */
.mobile-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 90;
  background: rgba(10, 10, 15, 0.95);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--color-border);
  padding: var(--space-sm) var(--space-lg);
  text-align: center;
}
.mobile-cta .btn { width: 100%; }

/* --- Scroll Animations --- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}
.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Footer --- */
.footer {
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--color-border);
}

.footer__content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.footer__brand p {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  margin-top: var(--space-xs);
}
.footer__brand a { color: var(--color-accent); text-decoration: none; }

.footer__links {
  display: flex;
  gap: var(--space-xl);
}
.footer__links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}
.footer__links a:hover { color: var(--color-text); }

.footer__bottom {
  text-align: center;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}
.footer__bottom p {
  color: var(--color-text-muted);
  font-size: 0.8rem;
}

/* --- Design Enhancements --- */

/* Gradient glow text on section titles */
.section__title {
  background: linear-gradient(135deg, #ffcc00 0%, #fff5cc 50%, #ffcc00 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Glowing CTA buttons */
.btn--primary {
  box-shadow: 0 0 20px rgba(255, 204, 0, 0.2), 0 0 60px rgba(255, 204, 0, 0.05);
  transition: all 0.3s var(--ease);
}
.btn--primary:hover {
  box-shadow: 0 0 25px rgba(255, 204, 0, 0.4), 0 0 80px rgba(255, 204, 0, 0.1);
}

/* Glass morphism on cards */
.pricing__card,
.testimonial__card,
.feature__card,
.pain__card,
.fabric__item,
.usecase__card {
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(26, 26, 36, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.06);
}
.pricing__card:hover,
.testimonial__card:hover,
.feature__card:hover,
.pain__card:hover,
.fabric__item:hover,
.usecase__card:hover {
  border-color: rgba(255, 204, 0, 0.15);
  background: rgba(34, 34, 46, 0.8);
}

/* Animated gradient border on featured pricing card */
@property --border-angle {
  syntax: '<angle>';
  inherits: false;
  initial-value: 0deg;
}

.pricing__card--featured {
  border: 2px solid transparent;
  background-origin: border-box;
  background-clip: padding-box, border-box;
  background-image:
    linear-gradient(var(--color-bg-card), var(--color-bg-card)),
    conic-gradient(from var(--border-angle), #ffcc00, transparent 30%, transparent 70%, #ffcc00);
  animation: rotateBorder 4s linear infinite;
}

@keyframes rotateBorder {
  to { --border-angle: 360deg; }
}

/* Dot grid background on hero */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 204, 0, 0.07) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

/* Staggered scroll animations */
.animate-on-scroll {
  transition-delay: calc(var(--stagger, 0) * 100ms);
}

/* Counter animation keyframe helper */
@keyframes countUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero__stat strong {
  display: block;
  font-size: 1.5rem;
  color: var(--color-accent);
  font-weight: 700;
  margin-bottom: 2px;
}

/* Subtle glow on hero accent text */
.hero__accent {
  text-shadow: 0 0 40px rgba(255, 204, 0, 0.3);
}

/* Email form focus glow */
.email-form__input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 12px rgba(255, 204, 0, 0.1);
}

/* Nav logo "OS" in accent with subtle glow */
.nav__logo-os {
  text-shadow: 0 0 20px rgba(255, 204, 0, 0.2);
}

/* FABRIC letters glow */
.fabric__letter {
  text-shadow: 0 0 20px rgba(255, 204, 0, 0.25);
}

/* How step numbers glow */
.how__number {
  box-shadow: 0 0 20px rgba(255, 204, 0, 0.15);
}

/* Smooth hover lift for all interactive cards */
.pain__card,
.feature__card,
.usecase__card,
.fabric__item {
  transition: all 0.3s var(--ease);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__cta { display: none; }
  .nav__toggle { display: block; }

  .nav__links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-lg);
    gap: var(--space-md);
  }

  .hero__title { font-size: 2.2rem; }
  .hero__proof { gap: var(--space-lg); }
  .hero__stat strong { font-size: 1.2rem; }

  .fabric__grid { grid-template-columns: 1fr; }
  .fabric__item { gap: var(--space-md); }

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

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

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

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

  .email-form {
    flex-direction: column;
  }

  .mobile-cta { display: block; }
  .footer { padding-bottom: calc(var(--space-2xl) + 60px); }

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

@media (max-width: 480px) {
  .hero { padding-top: calc(64px + var(--space-2xl)); padding-bottom: var(--space-2xl); }
  .hero__title { font-size: 1.8rem; }
  .hero__actions { flex-direction: column; align-items: center; }
  .btn--lg { width: 100%; max-width: 320px; }
}