:root {
  --primary: #FDC800;
  --secondary: #432DD7;
  --success: #16A34A;
  --warning: #D97706;
  --danger: #DC2626;
  --surface: #FBFBF9;
  --text: #1C293C;
  --neutral: #FBFBF9;
  --border: #1C293C;
  --border-radius: 0;
  --border-width: 3px;
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --container: 1200px;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 24px;
  --space-2xl: 32px;
  --space-3xl: 48px;
  --space-4xl: 64px;
  --space-5xl: 80px;
  --transition: 200ms ease;
}

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

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

body {
  font-family: var(--font-primary);
  color: var(--text);
  background: var(--surface);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul {
  list-style: none;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section {
  padding: var(--space-5xl) 0;
}

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

.section--dark .section__tag {
  background: var(--primary);
  color: var(--text);
}

.section--dark .section__title,
.section--dark .section__desc {
  color: var(--surface);
}

.section--accent {
  background: var(--secondary);
  color: var(--surface);
}

.section--accent .section__tag {
  background: var(--primary);
  color: var(--text);
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.section__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  padding: var(--space-xs) var(--space-lg);
  background: var(--secondary);
  color: var(--surface);
  margin-bottom: var(--space-lg);
  border: var(--border-width) solid var(--border);
}

.section__title {
  font-size: 2.1875rem;
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: var(--space-lg);
}

.section__desc {
  font-size: 1.0625rem;
  max-width: 600px;
  margin: 0 auto;
  opacity: 0.85;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-primary);
  font-size: 1rem;
  font-weight: 600;
  padding: var(--space-md) var(--space-2xl);
  border: var(--border-width) solid var(--border);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  gap: var(--space-sm);
}

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

.btn--primary:hover {
  background: var(--text);
  color: var(--surface);
  border-color: var(--text);
}

.btn--outline {
  background: transparent;
  color: var(--text);
  border-color: var(--text);
}

.btn--outline:hover {
  background: var(--text);
  color: var(--surface);
}

.btn--full {
  width: 100%;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--surface);
  border-bottom: var(--border-width) solid var(--border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.3125rem;
  font-weight: 800;
  color: var(--text);
  text-decoration: none;
}

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

.logo__icon {
  font-size: 1.5rem;
  color: var(--primary);
  text-shadow: 2px 2px 0 var(--border);
}

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

.nav__link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text);
  position: relative;
}

.nav__link::after {
  content: '';
  display: block;
  width: 0;
  height: 3px;
  background: var(--primary);
  transition: width var(--transition);
  position: absolute;
  bottom: -4px;
  left: 0;
}

.nav__link:hover::after,
.nav__link[aria-current="page"]::after {
  width: 100%;
}

.nav__link--cta {
  background: var(--primary);
  padding: var(--space-sm) var(--space-lg);
  font-weight: 700;
  border: var(--border-width) solid var(--border);
}

.nav__link--cta::after {
  display: none;
}

.nav__link--cta:hover {
  background: var(--text);
  color: var(--surface);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.nav__toggle-bar {
  display: block;
  width: 24px;
  height: 3px;
  background: var(--text);
  transition: all var(--transition);
}

/* Hero */
.hero {
  padding: var(--space-5xl) 0;
  position: relative;
  overflow: hidden;
  border-bottom: var(--border-width) solid var(--border);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.hero__title {
  font-size: 2.7rem;
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -1px;
  margin-bottom: var(--space-xl);
}

.hero__subtitle {
  font-size: 1.0625rem;
  line-height: 1.6;
  margin-bottom: var(--space-2xl);
  opacity: 0.85;
}

.hero__actions {
  display: flex;
  gap: var(--space-lg);
  margin-bottom: var(--space-3xl);
  flex-wrap: wrap;
}

.hero__stats {
  display: flex;
  gap: var(--space-2xl);
}

.stat {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  align-items: baseline;
}

.stat__number {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--secondary);
}

.stat__unit {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--secondary);
  margin-left: 2px;
}

.stat__label {
  font-size: 0.8125rem;
  font-weight: 500;
  display: block;
  width: 100%;
  opacity: 0.7;
  margin-top: var(--space-xs);
}

.hero__visual {
  position: relative;
}

.hero__img {
  width: 100%;
  border: var(--border-width) solid var(--border);
  position: relative;
  z-index: 1;
}

.hero__shape {
  position: absolute;
  z-index: 0;
}

.hero__shape--1 {
  width: 100px;
  height: 100px;
  background: var(--primary);
  top: -20px;
  right: -20px;
  border: var(--border-width) solid var(--border);
}

.hero__shape--2 {
  width: 60px;
  height: 60px;
  background: var(--success);
  bottom: -15px;
  left: -15px;
  border: var(--border-width) solid var(--border);
}

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

.service-card {
  background: var(--surface);
  border: var(--border-width) solid var(--border);
  padding: var(--space-2xl);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition);
}

.service-card:hover {
  transform: translate(-4px, -4px);
  box-shadow: 8px 8px 0 var(--border);
}

.service-card__icon {
  margin-bottom: var(--space-xl);
}

.service-card__title {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.service-card__desc {
  font-size: 0.9375rem;
  opacity: 0.8;
  margin-bottom: var(--space-xl);
  line-height: 1.5;
  flex: 1;
}

.service-card__link {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--secondary);
}

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

.project-card {
  background: var(--surface);
  border: var(--border-width) solid var(--border);
  color: var(--text);
  transition: transform var(--transition);
}

.project-card:hover {
  transform: translate(-4px, -4px);
  box-shadow: 8px 8px 0 var(--primary);
}

.project-card__image {
  position: relative;
  border-bottom: var(--border-width) solid var(--border);
}

.project-card__image img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.project-card__badge {
  position: absolute;
  top: var(--space-md);
  left: var(--space-md);
  background: var(--primary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  padding: var(--space-xs) var(--space-sm);
  border: 2px solid var(--border);
}

.project-card__body {
  padding: var(--space-xl);
}

.project-card__title {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.project-card__desc {
  font-size: 0.9375rem;
  opacity: 0.8;
  margin-bottom: var(--space-lg);
  line-height: 1.5;
}

.project-card__stat {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  border-top: 2px solid var(--border);
  padding-top: var(--space-lg);
}

.project-card__stat-number {
  font-size: 1.3125rem;
  font-weight: 800;
  color: var(--success);
}

.project-card__stat-label {
  font-size: 0.8125rem;
  opacity: 0.7;
}

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

.blog-card {
  background: var(--surface);
  border: var(--border-width) solid var(--border);
  transition: transform var(--transition);
}

.blog-card:hover {
  transform: translate(-4px, -4px);
  box-shadow: 8px 8px 0 var(--border);
}

.blog-card__image img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-bottom: var(--border-width) solid var(--border);
}

.blog-card__body {
  padding: var(--space-xl);
}

.blog-card__date {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  opacity: 0.6;
  margin-bottom: var(--space-sm);
}

.blog-card__title {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
  line-height: 1.3;
}

.blog-card__excerpt {
  font-size: 0.9375rem;
  opacity: 0.8;
  margin-bottom: var(--space-lg);
  line-height: 1.5;
}

.blog-card__link {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--secondary);
}

/* Contact */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: start;
}

.contact__title {
  font-size: 2.1875rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
}

.contact__desc {
  font-size: 1.0625rem;
  opacity: 0.85;
  margin-bottom: var(--space-2xl);
}

.contact__details {
  font-style: normal;
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.contact__detail {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  font-size: 0.9375rem;
}

.contact__detail a {
  color: var(--surface);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.contact__detail svg {
  flex-shrink: 0;
}

.contact__form {
  background: var(--surface);
  padding: var(--space-2xl);
  border: var(--border-width) solid var(--border);
}

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

.form__label {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--space-sm);
}

.form__input {
  width: 100%;
  font-family: var(--font-primary);
  font-size: 1rem;
  padding: var(--space-md) var(--space-lg);
  border: var(--border-width) solid var(--border);
  background: var(--surface);
  color: var(--text);
  transition: border-color var(--transition);
  outline: none;
}

.form__input:focus-visible {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(253, 200, 0, 0.3);
}

.form__textarea {
  resize: vertical;
  min-height: 100px;
}

/* Footer */
.footer {
  background: var(--text);
  color: var(--surface);
  padding: var(--space-4xl) 0 var(--space-2xl);
  border-top: var(--border-width) solid var(--border);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-3xl);
  margin-bottom: var(--space-3xl);
}

.footer .logo {
  color: var(--surface);
  margin-bottom: var(--space-lg);
}

.footer__tagline {
  font-size: 0.9375rem;
  opacity: 0.7;
  max-width: 280px;
}

.footer__heading {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-lg);
  text-transform: uppercase;
  letter-spacing: 1px;
}

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

.footer__nav a {
  color: var(--surface);
  opacity: 0.7;
  font-size: 0.9375rem;
}

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

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

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 2px solid var(--surface);
  color: var(--surface);
  transition: all var(--transition);
}

.social-link:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--text);
}

.footer__bottom {
  border-top: 2px solid rgba(251, 251, 249, 0.15);
  padding-top: var(--space-xl);
  display: flex;
  justify-content: space-between;
  font-size: 0.8125rem;
  opacity: 0.6;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

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

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

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

@media (max-width: 768px) {
  .section {
    padding: var(--space-4xl) 0;
  }

  .section__title {
    font-size: 1.75rem;
  }

  .nav__toggle {
    display: flex;
  }

  .nav__list {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--surface);
    border-bottom: var(--border-width) solid var(--border);
    padding: var(--space-xl);
    gap: var(--space-lg);
    z-index: 999;
  }

  .nav__list.nav__list--open {
    display: flex;
  }

  .hero__grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .hero__title {
    font-size: 2rem;
  }

  .hero__stats {
    flex-wrap: wrap;
    gap: var(--space-lg);
  }

  .services__grid,
  .projects__grid,
  .blog__grid {
    grid-template-columns: 1fr;
  }

  .contact__grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

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

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

  .hero__actions {
    flex-direction: column;
  }

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