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

:root {
  --bg: #0a0c14;
  --bg-80: rgba(10, 12, 20, 0.8);
  --fg: #e8ecf4;
  --card: #101320;
  --card-fg: #e8ecf4;
  --primary: #3b82f6;
  --primary-fg: #0a0c14;
  --primary-10: rgba(59, 130, 246, 0.1);
  --primary-30: rgba(59, 130, 246, 0.3);
  --primary-5: rgba(59, 130, 246, 0.05);
  --primary-90: rgba(59, 130, 246, 0.9);
  --secondary: #181c2a;
  --muted: #181c2a;
  --muted-fg: #7a849a;
  --accent-fg: #bfc6d4;
  --border: #1c2030;
  --radius: 0.625rem;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

/* ===== Utilities ===== */
.container {
  max-width: 80rem;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

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

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  border-bottom: 1px solid var(--border);
  background: var(--bg-80);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1rem;
}

.header__logo img {
  height: 2.5rem;
  width: auto;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.header__nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted-fg);
  transition: color 0.2s;
}

.header__nav a:hover {
  color: var(--fg);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Language Switcher */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.lang-switch__icon {
  width: 1rem;
  height: 1rem;
  color: var(--muted-fg);
}

.lang-switch__buttons {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.lang-btn {
  padding: 0.25rem 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 0.375rem;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font-sans);
  background: transparent;
  color: var(--muted-fg);
}

.lang-btn:hover {
  color: var(--fg);
  background: var(--muted);
}

.lang-btn.active {
  background: var(--primary);
  color: var(--primary-fg);
}

/* Mobile menu toggle */
.mobile-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.375rem;
  border: none;
  background: transparent;
  color: var(--muted-fg);
  cursor: pointer;
  transition: color 0.2s;
}

.mobile-toggle:hover {
  color: var(--fg);
}

.mobile-toggle svg {
  width: 1.25rem;
  height: 1.25rem;
}

.mobile-menu {
  display: none;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.mobile-menu.open {
  display: block;
}

.mobile-menu nav {
  display: flex;
  flex-direction: column;
  padding: 1rem 1.5rem;
}

.mobile-menu nav a {
  padding-block: 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted-fg);
  transition: color 0.2s;
}

.mobile-menu nav a:hover {
  color: var(--fg);
}

.mobile-menu .lang-switch {
  padding-top: 1rem;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 5rem 1.5rem 0;
  overflow: hidden;
}

.hero__glow {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 37.5rem;
  height: 37.5rem;
  border-radius: 50%;
  background: var(--primary-5);
  filter: blur(100px);
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 56rem;
  text-align: center;
}

.hero__tagline {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--border);
  background: var(--muted);
  border-radius: 9999px;
  padding: 0.375rem 1rem;
  margin-bottom: 1.5rem;
}

.hero__tagline span {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-fg);
}

.hero h1 {
  font-size: clamp(2.25rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--fg);
  text-wrap: balance;
}

.hero__subtitle {
  max-width: 42rem;
  margin: 1.5rem auto 0;
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--muted-fg);
  text-wrap: pretty;
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 2.5rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--primary);
  color: var(--primary-fg);
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  font-family: var(--font-sans);
  border: none;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-primary:hover {
  background: var(--primary-90);
}

.btn-primary svg {
  width: 1rem;
  height: 1rem;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg);
  color: var(--fg);
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  font-family: var(--font-sans);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.2s;
}

.btn-secondary:hover {
  background: var(--muted);
}

.hero__scroll {
  position: absolute;
  bottom: 2.5rem;
  color: var(--muted-fg);
  transition: color 0.2s;
  animation: bounce 2s infinite;
}

.hero__scroll:hover {
  color: var(--fg);
}

.hero__scroll svg {
  width: 1.5rem;
  height: 1.5rem;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-0.5rem); }
}

/* ===== Sections shared ===== */
.section {
  padding: 6rem 1.5rem;
}

.section__label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-fg);
}

.section__title {
  margin-top: 0.75rem;
  font-size: clamp(1.875rem, 4vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--fg);
  text-wrap: balance;
}

.section__subtitle {
  margin-top: 1rem;
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--muted-fg);
  text-wrap: pretty;
}

/* ===== Services ===== */
.services__header {
  max-width: 42rem;
  margin-bottom: 4rem;
}

.services__grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}

.service-card {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: var(--radius);
  padding: 2rem;
  transition: border-color 0.2s, background-color 0.2s;
}

.service-card:hover {
  border-color: var(--primary-30);
  background: rgba(24, 28, 42, 0.5);
}

.service-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.5rem;
  background: var(--primary-10);
  margin-bottom: 1rem;
}

.service-card__icon svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--primary);
}

.service-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--card-fg);
}

.service-card p {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--muted-fg);
}

/* ===== About ===== */
.about__grid {
  display: grid;
  gap: 4rem;
  grid-template-columns: 1fr;
}

.about__description {
  margin-top: 1.5rem;
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--muted-fg);
  text-wrap: pretty;
}

.company-card {
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: var(--radius);
  padding: 2rem;
}

.company-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--card-fg);
  margin-bottom: 2rem;
}

.company-info-row {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.25rem;
}

.company-info-row:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.company-info-row dt {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted-fg);
}

.company-info-row dd {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--card-fg);
}

.company-info-row dd a {
  transition: color 0.2s;
}

.company-info-row dd a:hover {
  color: var(--primary);
}

/* ===== Contact ===== */
.contact__header {
  max-width: 42rem;
  margin-inline: auto;
  text-align: center;
  margin-bottom: 4rem;
}

.contact__grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr;
  max-width: 56rem;
  margin-inline: auto;
}

.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: var(--radius);
  padding: 2rem;
  transition: border-color 0.2s, background-color 0.2s;
}

.contact-card:hover {
  border-color: var(--primary-30);
  background: rgba(24, 28, 42, 0.5);
}

.contact-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 0.5rem;
  background: var(--primary-10);
}

.contact-card__icon svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--primary);
}

.contact-card__label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted-fg);
}

.contact-card__value {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--card-fg);
  text-align: center;
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 1.5rem;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.footer__logo img {
  height: 2rem;
  width: auto;
}

.footer__copy {
  font-size: 0.75rem;
  color: var(--muted-fg);
}

/* ===== Responsive ===== */
@media (min-width: 640px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .company-info-row {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
  }
}

@media (min-width: 768px) {
  .header__nav,
  .header__actions {
    display: flex;
  }

  .mobile-toggle {
    display: none !important;
  }

  .mobile-menu {
    display: none !important;
  }

  .section {
    padding: 8rem 1.5rem;
  }

  .footer__inner {
    flex-direction: row;
  }
}

@media (max-width: 767.98px) {
  .header__nav,
  .header__actions {
    display: none;
  }

  .mobile-toggle {
    display: flex;
  }
}

@media (min-width: 1024px) {
  .services__grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .company-card {
    padding: 2.5rem;
  }
}