/* ============================================
   Taatal — Global Styles
   ============================================
   Black & white. Premium minimal.
   Design tokens are in :root for easy rebranding.
   ============================================ */

/* --- Design Tokens --- */
:root {
  /* Colors — monochrome palette */
  --color-primary: #000000;
  --color-primary-light: #1d1d1f;
  --color-accent: #000000;
  --color-accent-dark: #1d1d1f;
  --color-accent-light: #f5f5f7;
  --color-text: #1d1d1f;
  --color-text-light: #86868b;
  --color-text-inverse: #ffffff;
  --color-bg: #ffffff;
  --color-bg-alt: #f5f5f7;
  --color-bg-dark: #000000;
  --color-border: #d2d2d7;
  --color-shadow: rgba(0, 0, 0, 0.04);

  /* Accent colors */
  --color-accent-blue: #0071e3;
  --color-accent-purple: #7c3aed;
  --color-accent-green: #059669;
  --color-accent-orange: #ea580c;

  /* Gradients */
  --gradient-ai: linear-gradient(135deg, #7c3aed 0%, #0071e3 100%);
  --gradient-cloud: linear-gradient(135deg, #0071e3 0%, #0891b2 100%);
  --gradient-adobe: linear-gradient(135deg, #ea580c 0%, #db2777 100%);
  --gradient-product: linear-gradient(135deg, #059669 0%, #0891b2 100%);

  /* Typography — Inter + system fallback */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', monospace;
  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1.0625rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.3125rem;
  --fs-xl: 1.5rem;
  --fs-2xl: 2rem;
  --fs-3xl: 2.8rem;
  --fs-4xl: 3.5rem;
  --fs-hero: 4.5rem;
  --line-height: 1.65;
  --line-height-tight: 1.12;

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

  /* Layout */
  --max-width: 1080px;
  --max-width-wide: 1280px;
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
  --transition-slow: 0.8s cubic-bezier(0.25, 0.1, 0.25, 1);

  /* Header */
  --header-height: 52px;
}

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

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

body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--line-height);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

a:hover {
  opacity: 0.7;
}

ul, ol {
  list-style: none;
}

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

h1 { font-size: var(--fs-4xl); }
h2 { font-size: var(--fs-3xl); }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); }

p + p { margin-top: var(--space-sm); }

/* --- Scroll Reveal Animations () --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1),
              transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.reveal-fade {
  opacity: 0;
  transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-fade.revealed {
  opacity: 1;
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1),
              transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Staggered children */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-stagger.revealed > *:nth-child(1) { transition-delay: 0s; }
.reveal-stagger.revealed > *:nth-child(2) { transition-delay: 0.1s; }
.reveal-stagger.revealed > *:nth-child(3) { transition-delay: 0.2s; }
.reveal-stagger.revealed > *:nth-child(4) { transition-delay: 0.3s; }
.reveal-stagger.revealed > *:nth-child(5) { transition-delay: 0.4s; }
.reveal-stagger.revealed > *:nth-child(6) { transition-delay: 0.5s; }

.reveal-stagger.revealed > * {
  opacity: 1;
  transform: translateY(0);
}

/* --- Utility --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

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

.section {
  padding: var(--space-2xl) 0;
}

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

.section--dark {
  background: var(--color-bg-dark);
  color: var(--color-text-inverse);
}

.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--color-text-inverse);
}

.section__header {
  text-align: center;
  max-width: 660px;
  margin: 0 auto var(--space-xl);
}

.section__header p {
  margin-top: var(--space-md);
  color: var(--color-text-light);
  font-size: var(--fs-lg);
  line-height: 1.5;
}

.section--dark .section__header p {
  color: #86868b;
}

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

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

/* --- Buttons (pill) --- */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: 980px;
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-align: center;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

.btn--primary:hover {
  background: var(--color-primary-light);
  color: var(--color-text-inverse);
  opacity: 1;
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  box-shadow: inset 0 0 0 1.5px var(--color-primary);
}

.btn--outline:hover {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  opacity: 1;
}

.btn--white {
  background: var(--color-bg);
  color: var(--color-primary);
}

.btn--white:hover {
  background: rgba(255, 255, 255, 0.85);
  color: var(--color-primary);
  opacity: 1;
}

.btn--ghost {
  background: transparent;
  color: var(--color-primary);
  padding: 0;
  font-size: var(--fs-base);
}

.btn--ghost::after {
  content: ' \203A';
  transition: margin-left var(--transition);
  margin-left: 0.15em;
}

.btn--ghost:hover::after {
  margin-left: 0.4em;
}

.btn--lg {
  padding: 1rem 2.25rem;
  font-size: var(--fs-base);
}

/* --- Header / Navigation (translucent) --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 3000;
  background: rgba(255, 255, 255, 0.92);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width-wide);
}

.logo:hover {
  opacity: 1;
}

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

.nav__link {
  color: var(--color-text);
  font-size: var(--fs-xs);
  font-weight: 500;
  padding: 0.4rem 0;
  position: relative;
  letter-spacing: 0;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 1.5px;
  background: var(--color-primary);
  transition: all var(--transition);
  transform: translateX(-50%);
}

.nav__link:hover,
.nav__link--active {
  opacity: 1;
}

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

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

.nav__cta.btn {
  font-size: var(--fs-xs);
  padding: 0.5rem 1.25rem;
  color: var(--color-text-inverse);
}

.nav__cta.btn:hover,
.nav__cta.btn.nav__link--active {
  color: var(--color-text-inverse);
  opacity: 1;
}

.nav__cta.btn::after {
  display: none;
}

/* Mobile menu toggle */
.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 5px;
}

.nav__toggle span {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav__toggle[aria-expanded="true"] span:nth-child(1) {
  transform: rotate(45deg) translate(4.5px, 4.5px);
}

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

.nav__toggle[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg) translate(4.5px, -4.5px);
}

/* --- Hero (large type, centered) --- */
.hero {
  padding-top: calc(var(--header-height) + var(--space-2xl));
  padding-bottom: var(--space-2xl);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--color-bg-dark);
  color: var(--color-text-inverse);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-ai);
  opacity: 0.06;
}

.hero .container {
  position: relative;
}

.hero__content {
  max-width: 820px;
  margin: 0 auto;
}

.hero__tagline {
  display: inline-block;
  color: #86868b;
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.hero__title {
  font-size: var(--fs-hero);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: var(--space-lg);
  color: var(--color-text-inverse);
  -webkit-text-fill-color: unset;
}

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

.hero__subtitle {
  font-size: var(--fs-xl);
  color: #a1a1a6;
  margin-bottom: var(--space-lg);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.5;
}

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

/* --- Grid --- */
.grid {
  display: grid;
  gap: var(--space-md);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* --- Card (glass) --- */
.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.card:hover {
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
  transform: translateY(-4px);
}

.card__icon {
  width: 52px;
  height: 52px;
  background: var(--color-bg-alt);
  color: var(--color-primary);
  border-radius: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.65rem;
  line-height: 1;
  margin-bottom: var(--space-md);
  font-weight: 700;
}

.card__icon svg,
.card__icon img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

/* Brand logo icon — larger visual in detail sections */
.service-detail__visual svg {
  width: 80px;
  height: 80px;
  opacity: 0.8;
}

.service-detail__visual--branded {
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.service-detail:hover .service-detail__visual--branded {
  transform: scale(1.02);
}

.service-detail__visual--branded img,
.service-detail__visual--branded svg {
  max-width: 120px;
  max-height: 120px;
  width: auto;
  height: auto;
  opacity: 1;
  object-fit: contain;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.service-detail:hover .service-detail__visual--branded img,
.service-detail:hover .service-detail__visual--branded svg {
  transform: scale(1.06);
}

.card__title {
  margin-bottom: var(--space-xs);
  font-size: var(--fs-lg);
}

.card__text {
  color: var(--color-text-light);
  font-size: var(--fs-sm);
  line-height: 1.6;
}

/* --- Intro (split) --- */
.intro__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.intro__text p {
  color: var(--color-text-light);
  font-size: var(--fs-md);
  line-height: 1.6;
}

.intro__text h2 {
  margin-bottom: var(--space-md);
  font-size: var(--fs-3xl);
}

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

.stat {
  text-align: center;
  padding: var(--space-lg);
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
}

.stat__number {
  font-size: var(--fs-4xl);
  font-weight: 800;
  color: var(--color-primary);
  display: block;
  letter-spacing: -0.04em;
}

.stat__label {
  font-size: var(--fs-xs);
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-top: 0.25rem;
}

/* --- Value Props (centered icons) --- */
.values__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.value {
  text-align: center;
  padding: var(--space-lg) var(--space-md);
}

.value__icon {
  width: 72px;
  height: 72px;
  background: var(--color-bg-alt);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
  font-size: var(--fs-2xl);
  color: var(--color-primary);
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.value:hover .value__icon {
  transform: scale(1.08);
}

.value h3 {
  margin-bottom: var(--space-xs);
}

.value p {
  color: var(--color-text-light);
  font-size: var(--fs-sm);
  line-height: 1.6;
}

/* --- CTA Banner (dark full-bleed) --- */
.cta-banner {
  text-align: center;
  padding: var(--space-2xl) 0;
  background: var(--color-bg-dark);
  color: var(--color-text-inverse);
}

.cta-banner h2 {
  color: var(--color-text-inverse);
  margin-bottom: var(--space-sm);
  font-size: var(--fs-3xl);
}

.cta-banner p {
  color: #86868b;
  font-size: var(--fs-lg);
  margin-bottom: var(--space-lg);
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.5;
}

/* --- Footer (minimal ) --- */
.footer {
  background: var(--color-bg-alt);
  color: var(--color-text-light);
  padding: var(--space-xl) 0 var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer__brand .logo {
  color: var(--color-primary);
}

.footer__brand p {
  margin-top: var(--space-sm);
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--color-text-light);
}

.footer h4 {
  color: var(--color-primary);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-md);
  font-weight: 600;
}

.footer__links li + li {
  margin-top: var(--space-xs);
}

.footer__links a {
  color: var(--color-text-light);
  font-size: var(--fs-sm);
}

.footer__links a:hover {
  color: var(--color-primary);
  opacity: 1;
}

.footer__bottom {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--fs-xs);
  color: var(--color-text-light);
}

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

.footer__bottom a:hover {
  color: var(--color-primary);
  opacity: 1;
}

/* --- Page Header (inner pages) --- */
.page-header {
  background: var(--color-bg);
  padding-top: calc(var(--header-height) + var(--space-2xl));
  padding-bottom: var(--space-xl);
  text-align: center;
}

.page-header--dark {
  background: var(--color-bg-dark);
  color: var(--color-text-inverse);
  position: relative;
  overflow: hidden;
}

.page-header--dark::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-ai);
  opacity: 0.06;
}

.page-header--dark .container {
  position: relative;
}

.page-header--dark h1 {
  color: var(--color-text-inverse);
}

.page-header--dark p {
  color: #a1a1a6;
}

.page-header h1 {
  margin-bottom: var(--space-sm);
  font-size: var(--fs-4xl);
  letter-spacing: -0.04em;
}

.page-header p {
  color: var(--color-text-light);
  font-size: var(--fs-lg);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.5;
}

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

/* Colored card icons */
.card__icon--ai {
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(0, 113, 227, 0.1));
  color: var(--color-accent-purple);
}

.card__icon--cloud {
  background: linear-gradient(135deg, rgba(0, 113, 227, 0.1), rgba(8, 145, 178, 0.1));
  color: var(--color-accent-blue);
}

.card__icon--adobe {
  background: linear-gradient(135deg, rgba(234, 88, 12, 0.1), rgba(219, 39, 119, 0.1));
  color: var(--color-accent-orange);
}

.card__icon--product {
  background: linear-gradient(135deg, rgba(5, 150, 105, 0.1), rgba(8, 145, 178, 0.1));
  color: var(--color-accent-green);
}

/* --- About Page --- */
.about-content {
  max-width: 760px;
}

.about-content h2 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}

.about-content p {
  color: var(--color-text-light);
  font-size: var(--fs-md);
  line-height: 1.65;
}

.timeline {
  margin-top: var(--space-lg);
  border-left: 1.5px solid var(--color-primary);
  padding-left: var(--space-lg);
}

.timeline__item {
  margin-bottom: var(--space-lg);
  position: relative;
}

.timeline__item::before {
  content: '';
  width: 10px;
  height: 10px;
  background: var(--color-primary);
  border-radius: 50%;
  position: absolute;
  left: calc(-1 * var(--space-lg) - 5.5px);
  top: 5px;
}

.timeline__year {
  font-weight: 700;
  color: var(--color-text-light);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.35rem;
}

.timeline__item h3 {
  margin-bottom: 0.35rem;
}

.timeline__item p {
  color: var(--color-text-light);
  font-size: var(--fs-sm);
  line-height: 1.6;
}

/* --- Services Page --- */
.service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  padding: var(--space-xl) 0;
}

.service-detail + .service-detail {
  border-top: 1px solid var(--color-border);
}

.service-detail:nth-child(even) {
  direction: rtl;
}

.service-detail:nth-child(even) > * {
  direction: ltr;
}

.service-detail__content h3 {
  font-size: var(--fs-2xl);
  margin-bottom: var(--space-sm);
}

.service-detail__content p {
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
  line-height: 1.6;
}

.service-detail__content ul {
  list-style: none;
  padding: 0;
}

.service-detail__content li {
  padding: 0.5rem 0;
  color: var(--color-text-light);
  font-size: var(--fs-sm);
  padding-left: 1.5rem;
  position: relative;
}

.service-detail__content li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  border-radius: 50%;
  position: absolute;
  left: 0;
  top: 0.85rem;
}

.service-detail__visual {
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.service-detail:hover .service-detail__visual {
  transform: scale(1.02);
}

/* --- Contact Page --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

.contact-info h3 {
  margin-bottom: var(--space-md);
}

.contact-info p {
  color: var(--color-text-light);
  margin-bottom: var(--space-lg);
  line-height: 1.6;
}

.contact-item {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  align-items: flex-start;
}

.contact-item__icon {
  width: 44px;
  height: 44px;
  background: var(--color-bg-alt);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: var(--fs-lg);
  flex-shrink: 0;
}

.contact-item__text strong {
  display: block;
  color: var(--color-primary);
  margin-bottom: 0.15rem;
  font-size: var(--fs-sm);
}

.contact-item__text span,
.contact-item__text a {
  font-size: var(--fs-sm);
  color: var(--color-text-light);
}

.form {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

.form__group {
  margin-bottom: var(--space-md);
}

.form__label {
  display: block;
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.form__input,
.form__textarea,
select.form__input {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: 'Inter', var(--font-sans);
  font-size: var(--fs-sm);
  color: var(--color-text);
  background: var(--color-bg-alt);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form__input:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.08);
  background: var(--color-bg);
}

.form__textarea {
  min-height: 140px;
  resize: vertical;
}

select.form__input {
  display: none;
}

/* Custom dropdown */
.dropdown {
  position: relative;
  width: 100%;
}

.dropdown__trigger {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: 'Inter', var(--font-sans);
  font-size: var(--fs-sm);
  color: var(--color-text-light);
  background: var(--color-bg-alt);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
  -webkit-user-select: none;
  user-select: none;
}

.dropdown__trigger.has-value {
  color: var(--color-text);
}

.dropdown__trigger:hover {
  border-color: #b0b0b5;
}

.dropdown.open .dropdown__trigger {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.08);
  background: var(--color-bg);
}

.dropdown__arrow {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.dropdown.open .dropdown__arrow {
  transform: rotate(180deg);
}

.dropdown__menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
  padding: 0.35rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px) scale(0.98);
  transition: opacity 0.25s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.25s cubic-bezier(0.16, 1, 0.3, 1),
              visibility 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.dropdown.open .dropdown__menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.dropdown__option {
  padding: 0.65rem 0.85rem;
  border-radius: 8px;
  font-family: 'Inter', var(--font-sans);
  font-size: var(--fs-sm);
  color: var(--color-text);
  cursor: pointer;
  transition: background 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dropdown__option:hover {
  background: var(--color-bg-alt);
}

.dropdown__option.selected {
  font-weight: 600;
}

.dropdown__option.selected::after {
  content: '';
  width: 16px;
  height: 16px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath d='M3 8.5L6.5 12L13 4' stroke='%231d1d1f' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-size: contain;
  flex-shrink: 0;
}

.form .btn {
  width: 100%;
}

.form__consent {
  margin-bottom: var(--space-md);
}

.form__checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  cursor: pointer;
  font-size: var(--fs-sm);
  color: var(--color-text-light);
  line-height: 1.5;
}

.form__checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 0.15rem;
  flex-shrink: 0;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.form__checkbox a {
  text-decoration: underline;
}

.form__error {
  display: block;
  font-size: 0.8rem;
  color: #ef4444;
  margin-top: 0.35rem;
  padding-left: 0.25rem;
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  transition: opacity 0.2s ease, max-height 0.2s ease;
}

.form__error--visible {
  opacity: 1;
  max-height: 2rem;
}

.form__input--error,
select.form__input--error,
textarea.form__input--error {
  border-color: #ef4444 !important;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1) !important;
}

.dropdown--error .dropdown__trigger {
  border-color: #ef4444 !important;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1) !important;
}

/* --- Modal Dialog --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 5000;
  background: rgba(0, 0, 0, 0.5);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-md);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1),
              visibility 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  max-width: 640px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  padding: var(--space-lg);
  position: relative;
  transform: scale(0.96) translateY(10px);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.15);
}

.modal-overlay.open .modal {
  transform: scale(1) translateY(0);
}

.modal__close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  background: var(--color-bg-alt);
  border: none;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-lg);
  color: var(--color-text-light);
  transition: background var(--transition), color var(--transition);
  line-height: 1;
}

.modal__close:hover {
  background: var(--color-border);
  color: var(--color-primary);
}

.modal h2 {
  font-size: var(--fs-xl);
  margin-bottom: var(--space-md);
  padding-right: var(--space-lg);
}

.modal h3 {
  font-size: var(--fs-md);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-xs);
}

.modal p {
  color: var(--color-text-light);
  font-size: var(--fs-sm);
  line-height: 1.7;
}

.modal ul {
  margin-top: 0.4rem;
  margin-bottom: 0.4rem;
  padding-left: 1.25rem;
  list-style: disc;
}

.modal li {
  color: var(--color-text-light);
  font-size: var(--fs-sm);
  line-height: 1.7;
  padding: 0.1rem 0;
}

/* --- 404 Page --- */
.error-page {
  text-align: center;
  padding-top: calc(var(--header-height) + var(--space-2xl));
  padding-bottom: var(--space-2xl);
  min-height: 80vh;
  display: flex;
  align-items: center;
}

.error-page__code {
  font-size: 10rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-sm);
  letter-spacing: -0.06em;
}

.error-page h1 {
  font-size: var(--fs-3xl);
  margin-bottom: var(--space-sm);
}

.error-page p {
  color: var(--color-text-light);
  font-size: var(--fs-md);
  margin-bottom: var(--space-lg);
}

/* --- Product Showcase --- */
.product-card {
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.product-card__content h3 {
  font-size: var(--fs-2xl);
  margin-bottom: var(--space-xs);
}

.product-card__badge {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-light);
  margin-bottom: var(--space-md);
}

.product-card__content p {
  color: var(--color-text-light);
  font-size: var(--fs-md);
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.product-card__visual {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  min-height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.product-card:hover .product-card__visual {
  transform: scale(1.02);
}

.product-card + .product-card {
  margin-top: var(--space-lg);
}

.product-card--dark {
  background: var(--color-bg-dark);
  color: var(--color-text-inverse);
}

.product-card--dark h3 {
  color: var(--color-text-inverse);
}

.product-card--dark .product-card__badge {
  color: #86868b;
}

.product-card--dark .product-card__content p {
  color: #86868b;
}

.product-card--dark .product-card__visual {
  background: var(--color-primary-light);
  border-color: rgba(255, 255, 255, 0.1);
  color: var(--color-text-inverse);
}

.product-card__features {
  list-style: none;
  padding: 0;
  margin-bottom: var(--space-md);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem var(--space-md);
}

.product-card__features li {
  font-size: var(--fs-sm);
  color: var(--color-text-light);
  padding-left: 1.25rem;
  position: relative;
}

.product-card__features li::before {
  content: '';
  width: 5px;
  height: 5px;
  background: var(--color-primary);
  border-radius: 50%;
  position: absolute;
  left: 0;
  top: 0.55rem;
}

.product-card--dark .product-card__features li {
  color: #86868b;
}

.product-card--dark .product-card__features li::before {
  background: #86868b;
}

.products-coming {
  text-align: center;
  margin-top: var(--space-lg);
  padding: var(--space-lg);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
}

.products-coming p {
  color: var(--color-text-light);
  font-size: var(--fs-sm);
}

/* --- Product roadmap items --- */
.roadmap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.roadmap__item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.roadmap__item:hover {
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
  transform: translateY(-4px);
}

.roadmap__icon {
  font-size: var(--fs-3xl);
  margin-bottom: var(--space-sm);
}

.roadmap__status {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-light);
  margin-bottom: var(--space-sm);
  padding: 0.2rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 980px;
}

.roadmap__item h3 {
  margin-bottom: var(--space-xs);
}

.roadmap__item p {
  color: var(--color-text-light);
  font-size: var(--fs-sm);
  line-height: 1.6;
}

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

/* --- AI Page --- */
.ai-pillars {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.ai-pillar {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.ai-pillar:hover {
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
  transform: translateY(-4px);
}

.ai-pillar__label {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-light);
  margin-bottom: var(--space-sm);
}

.ai-pillar h3 {
  font-size: var(--fs-xl);
  margin-bottom: var(--space-xs);
}

.ai-pillar p {
  color: var(--color-text-light);
  font-size: var(--fs-sm);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .product-card {
    grid-template-columns: 1fr;
  }
  .ai-pillars {
    grid-template-columns: 1fr;
  }
}

/* --- Cookie Consent --- */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2000;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: var(--space-md) 0;
  box-shadow: 0 -4px 30px rgba(0, 0, 0, 0.06);
  transform: translateY(100%);
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.cookie-banner.visible {
  transform: translateY(0);
}

.cookie-banner .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.cookie-banner__text {
  font-size: var(--fs-sm);
  color: var(--color-text-light);
  line-height: 1.5;
  flex: 1;
}

.cookie-banner__text a {
  text-decoration: underline;
}

.cookie-banner__actions {
  display: flex;
  gap: var(--space-xs);
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .cookie-banner .container {
    flex-direction: column;
    text-align: center;
  }
}

/* --- Logo with mark --- */
.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo__mark {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.logo__text {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.04em;
}

/* --- Divider line --- */
.divider {
  width: 100%;
  height: 1px;
  background: var(--color-border);
  border: none;
  margin: 0;
}

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

@media (max-width: 768px) {
  :root {
    --fs-hero: 2.75rem;
    --fs-4xl: 2.25rem;
    --fs-3xl: 1.875rem;
    --fs-2xl: 1.5rem;
    --space-2xl: 5rem;
  }

  .nav__toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: #ffffff;
    padding: var(--space-xl) var(--space-lg);
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 3000;
    overflow-y: auto;
    border-top: 1px solid var(--color-border);
  }

  .nav--open {
    transform: translateX(0);
  }

  .nav__list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }

  .nav__link {
    font-size: var(--fs-xl);
    font-weight: 600;
    padding: 0.25rem 0;
  }

  .nav__link::after {
    display: none;
  }

  .header {
    background: #ffffff;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    z-index: 3001;
  }

  .nav__cta {
    margin-left: 0;
    margin-top: var(--space-sm);
  }

  .nav__cta.btn {
    font-size: var(--fs-base);
    padding: 0.75rem 1.75rem;
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--header-height) + var(--space-xl));
    padding-bottom: var(--space-xl);
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }

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

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

  .service-detail {
    grid-template-columns: 1fr;
  }

  .service-detail:nth-child(even) {
    direction: ltr;
  }

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

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

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-xs);
    text-align: center;
  }
}

@media (max-width: 480px) {
  :root {
    --fs-hero: 2.25rem;
    --fs-4xl: 1.875rem;
    --fs-3xl: 1.5rem;
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }

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

/* --- Reduced motion --- */
@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal-fade,
  .reveal-scale,
  .reveal-stagger > * {
    opacity: 1;
    transform: none;
    transition: none;
  }
}