/* ==========================================================================
   main.css — All Component Styles
   Kogtek Agency Website
   ========================================================================== */

/* --------------------------------------------------------------------------
   Base — Body & Typography
   -------------------------------------------------------------------------- */
body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--font-regular);
  color: var(--text-primary);
  background-color: var(--bg-base);
  line-height: 1.65;
  transition: background-color var(--transition-slow), color var(--transition-slow);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: var(--font-bold);
  line-height: 1.2;
  color: var(--text-primary);
}

h1 {
  font-size: var(--text-5xl);
  font-weight: var(--font-extrabold);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

h2 {
  font-size: var(--text-3xl);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

h3 {
  font-size: var(--text-2xl);
  font-weight: var(--font-semibold);
  letter-spacing: -0.005em;
  line-height: 1.3;
}

h4 {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  line-height: 1.4;
}

p {
  line-height: 1.65;
}

a {
  color: var(--accent-primary);
  transition: color var(--transition-base);
}

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

::selection {
  background: var(--accent-primary);
  color: var(--text-on-accent);
}

/* --------------------------------------------------------------------------
   Layout — Container & Section
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-8);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.container--wide {
  max-width: var(--container-wide);
}

@media (max-width: 768px) {
  .container {
    padding-inline: var(--space-5);
  }
}

@media (max-width: 480px) {
  .container {
    padding-inline: var(--space-4);
  }
}

/* Section rhythm */
.section {
  padding-block: var(--space-24);
}

@media (max-width: 768px) {
  .section {
    padding-block: var(--space-16);
  }
}

@media (max-width: 480px) {
  .section {
    padding-block: var(--space-12);
  }
}

/* Section header */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-12);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.section-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--accent-primary);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.section-title {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  color: var(--text-primary);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0;
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: 1.65;
  margin: 0;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  line-height: 1;
  letter-spacing: 0.01em;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition:
    background-color var(--transition-base),
    border-color var(--transition-base),
    color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
}

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

.btn:active {
  transform: translateY(0) !important;
}

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  border-radius: var(--radius-sm);
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  border-radius: 10px;
}

/* Primary */
.btn--primary {
  background: var(--accent-primary);
  color: var(--text-on-accent);
  border-color: var(--accent-primary);
}

.btn--primary:hover {
  background: var(--accent-primary-hover);
  border-color: var(--accent-primary-hover);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
  color: var(--text-on-accent);
}

/* Secondary */
.btn--secondary {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-strong);
}

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

/* Ghost (for dark backgrounds) */
.btn--ghost {
  background: transparent;
  color: var(--text-on-dark);
  border-color: rgba(255, 255, 255, 0.25);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.45);
  color: var(--text-on-dark);
  transform: translateY(-1px);
}

@media (prefers-reduced-motion: reduce) {
  .btn {
    transition: background-color var(--transition-base), border-color var(--transition-base), color var(--transition-base);
  }
  .btn:hover {
    transform: none !important;
  }
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  width: 100%;
  height: 72px;
  background: var(--bg-nav);
  border-bottom: 1px solid var(--border-muted);
  transition: background var(--transition-slow), box-shadow var(--transition-slow), border-color var(--transition-slow);
}

.navbar.scrolled {
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: var(--bg-nav); /* fallback: opaque */
  background: color-mix(in srgb, var(--bg-nav) 90%, transparent);
  box-shadow: var(--shadow-md);
  border-color: var(--border-default);
}

.navbar__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-8);
  gap: var(--space-8);
}

.navbar__logo {
  font-family: var(--font-sans);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--accent-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

.navbar__logo:hover {
  color: var(--accent-primary-hover);
}

.navbar__links {
  display: flex;
  list-style: none;
  gap: var(--space-8);
  margin: 0;
  padding: 0;
  flex: 1;
  justify-content: center;
}

.navbar__link {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-secondary);
  text-decoration: none;
  letter-spacing: 0.01em;
  padding: var(--space-2) 0;
  position: relative;
  transition: color var(--transition-base);
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-primary);
  transition: width 0.25s ease;
}

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

.navbar__link:hover::after,
.navbar__link.active::after {
  width: 100%;
}

.navbar__link.active {
  color: var(--text-primary);
}

.navbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* Theme Toggle Button */
.btn-theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-default);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base);
  flex-shrink: 0;
}

.btn-theme-toggle:hover {
  background: var(--bg-surface-alt);
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.btn-theme-toggle:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

.btn-theme-toggle svg {
  width: 18px;
  height: 18px;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.2s ease;
}

.btn-theme-toggle.switching svg {
  transform: rotate(30deg) scale(0.5);
  opacity: 0;
}

/* Hamburger */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  flex-shrink: 0;
}

.navbar__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition-slow), opacity var(--transition-slow);
}

.navbar__hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.navbar__hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.navbar__hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Navigation Drawer */
.navbar__mobile-menu {
  display: none;
  flex-direction: column;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-nav);
  padding: var(--space-8);
  gap: var(--space-4);
  z-index: var(--z-overlay);
  overflow-y: auto;
  border-top: 1px solid var(--border-muted);
}

.navbar__mobile-menu.open {
  display: flex;
}

.navbar__mobile-link {
  font-size: var(--text-lg);
  font-weight: var(--font-medium);
  color: var(--text-secondary);
  text-decoration: none;
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--border-muted);
  transition: color var(--transition-base);
}

.navbar__mobile-link:hover,
.navbar__mobile-link.active {
  color: var(--accent-primary);
}

/* Responsive nav */
@media (max-width: 768px) {
  .navbar__links {
    display: none;
  }

  .navbar__actions .btn {
    display: none;
  }

  .navbar__hamburger {
    display: flex;
  }
}

@media (max-width: 480px) {
  .navbar__container {
    padding: 0 var(--space-4);
  }
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-hero);
  overflow: hidden;
}

/* Subtle CSS grid overlay */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border-strong) 1px, transparent 1px),
    linear-gradient(90deg, var(--border-strong) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.06;
  pointer-events: none;
}

/* Radial gradient vignette */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 80% at 50% 40%, transparent 40%, var(--bg-hero) 100%);
  pointer-events: none;
}

.hero__container {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  padding: var(--space-24) var(--space-6);
  animation: heroIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--accent-primary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-6);
  padding: var(--space-2) var(--space-4);
  border: 1px solid rgba(0, 197, 168, 0.3);
  border-radius: var(--radius-full);
  background: rgba(0, 197, 168, 0.08);
}

.hero__headline {
  font-size: clamp(2.25rem, 5vw + 1rem, 3.75rem);
  font-weight: var(--font-extrabold);
  color: var(--text-on-dark);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-6);
}

.hero__headline em {
  font-style: normal;
  color: var(--accent-primary);
}

.hero__subheadline {
  font-size: clamp(1rem, 2vw + 0.5rem, 1.25rem);
  font-weight: var(--font-regular);
  color: rgba(232, 237, 245, 0.75);
  line-height: 1.65;
  max-width: 640px;
  margin: 0 auto var(--space-10);
}

.hero__cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-8);
}

.hero__supporting {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: rgba(232, 237, 245, 0.45);
  letter-spacing: 0.03em;
  margin-top: var(--space-4);
}

.hero__scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: rgba(232, 237, 245, 0.4);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  animation: bounce 2s ease-in-out infinite;
  text-decoration: none;
}

.hero__scroll-indicator svg {
  width: 20px;
  height: 20px;
}

@keyframes heroIn {
  from {
    transform: translateY(16px);
  }
  to {
    transform: translateY(0);
  }
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

@media (prefers-reduced-motion: reduce) {
  .hero__container {
    animation: none;
  }
  .hero__scroll-indicator {
    animation: none;
  }
}

/* --------------------------------------------------------------------------
   About Section
   -------------------------------------------------------------------------- */
.about {
  background: var(--bg-surface-alt);
  padding: var(--space-24) 0;
}

.about__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}

.about__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.about__lead {
  font-size: var(--text-lg);
  font-weight: var(--font-regular);
  color: var(--text-primary);
  line-height: 1.7;
  margin: 0;
}

.about__body {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.65;
  margin: 0;
}

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

.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-muted);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  border-left: 4px solid var(--accent-primary);
  transition: box-shadow var(--transition-slow);
}

.stat-card:hover {
  box-shadow: var(--shadow-md);
}

.stat-card__value {
  font-size: var(--text-3xl);
  font-weight: var(--font-extrabold);
  color: var(--accent-primary);
  letter-spacing: -0.02em;
  line-height: 1;
}

.stat-card__label {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

@media (max-width: 768px) {
  .about {
    padding: var(--space-16) 0;
  }

  .about__layout {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }

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

  .stat-card__value {
    font-size: var(--text-2xl);
  }
}

@media (max-width: 480px) {
  .about {
    padding: var(--space-12) 0;
  }

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

/* --------------------------------------------------------------------------
   Services Section
   -------------------------------------------------------------------------- */
.services {
  background: var(--bg-base);
  padding: var(--space-24) 0;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 1fr;
  gap: var(--space-6);
  margin-top: var(--space-12);
}

.service-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-muted);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition: border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
  position: relative;
  overflow: hidden;
}

/* Teal accent top line */
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
}

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

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: rgba(0, 197, 168, 0.1);
  color: var(--accent-primary);
  font-size: 1.5rem;
  flex-shrink: 0;
}

.service-card__title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
  line-height: 1.3;
  margin: 0;
}

.service-card__description {
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: 1.65;
  margin: 0;
  flex: 1;
}

/* Tablet: 2 columns */
@media (max-width: 1023px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: auto;
  }

  .services__grid > :last-child:nth-child(odd) {
    grid-column: 1 / -1;
    max-width: calc(50% - var(--space-3));
    margin-inline: auto;
  }
}

/* Mobile: 1 column */
@media (max-width: 639px) {
  .services {
    padding: var(--space-12) 0;
  }

  .services__grid {
    grid-template-columns: 1fr;
    margin-top: var(--space-8);
  }

  .services__grid > :last-child:nth-child(odd) {
    grid-column: auto;
    max-width: none;
  }
}

@media (max-width: 768px) {
  .services {
    padding: var(--space-16) 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .service-card {
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
  }
  .service-card:hover {
    transform: none;
  }
}

/* --------------------------------------------------------------------------
   Contact Section
   -------------------------------------------------------------------------- */
.contact {
  background: var(--bg-base);
  padding: var(--space-24) 0;
  text-align: center;
}

.contact__inner {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-6);
}

.contact__description {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  line-height: 1.65;
  margin: 0;
}

.contact__email {
  font-size: var(--text-2xl);
  font-weight: var(--font-semibold);
  color: var(--accent-primary);
  text-decoration: none;
  position: relative;
  transition: color var(--transition-base);
}

.contact__email::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-primary);
  transform: scaleX(0);
  transition: transform 0.25s ease;
}

.contact__email:hover {
  color: var(--accent-primary-hover);
}

.contact__email:hover::after {
  transform: scaleX(1);
}

.contact__socials-label {
  font-size: var(--text-sm);
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.contact__socials {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-2);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border-default);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 1.1rem;
  transition: background var(--transition-base), color var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
}

.social-link:hover {
  background: var(--accent-primary);
  color: var(--text-on-accent);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
}

.social-link:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .social-link:hover {
    transform: none;
  }
}

@media (max-width: 768px) {
  .contact {
    padding: var(--space-16) 0;
  }

  .contact__email {
    font-size: var(--text-xl);
  }
}

@media (max-width: 480px) {
  .contact {
    padding: var(--space-12) 0;
  }
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  background: var(--bg-footer);
  padding: var(--space-12) 0 var(--space-8);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-12);
  padding-bottom: var(--space-10);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__logo {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--accent-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.footer__logo:hover {
  color: var(--accent-primary-hover);
}

.footer__tagline {
  font-size: var(--text-sm);
  color: rgba(232, 237, 245, 0.5);
  line-height: 1.5;
  max-width: 240px;
}

.footer__nav-title {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: rgba(232, 237, 245, 0.4);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}

.footer__nav-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__nav-link {
  font-size: var(--text-sm);
  color: rgba(232, 237, 245, 0.6);
  text-decoration: none;
  transition: color var(--transition-base);
}

.footer__nav-link:hover {
  color: var(--accent-primary);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-6);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer__copyright {
  font-size: var(--text-xs);
  color: rgba(232, 237, 245, 0.35);
}

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

  .footer__brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 480px) {
  .footer__grid {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   Scroll Reveal Animations
   -------------------------------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.55s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.55s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
[data-reveal-group] [data-reveal]:nth-child(1) { transition-delay: 0ms; }
[data-reveal-group] [data-reveal]:nth-child(2) { transition-delay: 80ms; }
[data-reveal-group] [data-reveal]:nth-child(3) { transition-delay: 160ms; }
[data-reveal-group] [data-reveal]:nth-child(4) { transition-delay: 240ms; }
[data-reveal-group] [data-reveal]:nth-child(5) { transition-delay: 320ms; }
[data-reveal-group] [data-reveal]:nth-child(6) { transition-delay: 400ms; }

@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

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

/* --------------------------------------------------------------------------
   Skip to main content (accessibility)
   -------------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  background: var(--accent-primary);
  color: var(--text-on-accent);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-weight: var(--font-semibold);
  z-index: 9999;
  text-decoration: none;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-4);
}