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

:root {
  --blue: #0066ff;
  --blue-hover: #0052cc;
  --white: #ffffff;
  --black: #0a0a0a;
  --gray-50: #f8f9fa;
  --gray-100: #f1f3f5;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --dark-bg: #0d1117;
  --dark-card: #161b22;
  --dark-border: #30363d;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
  --transition: 0.2s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--black);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

address {
  font-style: normal;
}

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

.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;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--gray-100);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1280px;
  margin: 0 auto;
  padding: 1rem 2rem;
  gap: 2rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  line-height: 0;
}

.logo img {
  height: 2rem;
  width: auto;
  display: block;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2rem;
  margin-left: auto;
  margin-right: 1.5rem;
}

.nav__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-600);
  transition: color var(--transition);
}

.nav__link:hover {
  color: var(--black);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--font);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
  white-space: nowrap;
}

.btn--sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
}

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

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

.btn--outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.6);
}

.btn--outline:hover {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

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

.btn__arrow {
  font-size: 1.1em;
  line-height: 1;
}

/* Hero */
.hero {
  position: relative;
  min-height: calc(100vh - 65px);
  min-height: calc(100dvh - 65px);
  display: flex;
  align-items: center;
  background:
    url('https://images.unsplash.com/photo-1550751827-4bd374c3f58b?w=1920&q=80') center / cover no-repeat;
  overflow: hidden;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    rgba(0, 0, 0, 0.82) 0%,
    rgba(0, 0, 0, 0.65) 50%,
    rgba(0, 0, 0, 0.45) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 4rem 2rem;
  width: 100%;
}

.hero__label {
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 1.25rem;
}

.hero__title {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--white);
  max-width: 18ch;
  margin-bottom: 1.5rem;
}

.hero__highlight {
  color: var(--blue);
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: rgba(255, 255, 255, 0.85);
  max-width: 52ch;
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Notify strip */
.notify {
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-100);
}

.notify__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 3rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.notify__title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.375rem;
}

.notify__desc {
  color: var(--gray-600);
  font-size: 0.9375rem;
}

.notify__form {
  display: flex;
  gap: 0.75rem;
  flex: 1;
  min-width: 280px;
  max-width: 480px;
}

.notify__form input {
  flex: 1;
  padding: 0.75rem 1rem;
  font-family: var(--font);
  font-size: 0.9375rem;
  border: 1px solid var(--gray-400);
  border-radius: var(--radius);
  background: var(--white);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.notify__form input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.15);
}

/* Contact */
.contact {
  background: var(--dark-bg);
  color: var(--white);
  padding: 5rem 0;
}

.contact__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

.contact__title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.contact__intro {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1rem;
  margin-bottom: 2.5rem;
  max-width: 52ch;
}

.contact__details {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.contact__item {
  min-width: 0;
}

.contact__label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 0.375rem;
}

.contact__value {
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.9);
  transition: color var(--transition);
}

a.contact__value:hover {
  color: var(--blue);
}

/* Footer */
.footer {
  background: var(--black);
  color: rgba(255, 255, 255, 0.6);
  padding: 2rem 0;
}

.footer__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer__copy {
  font-size: 0.875rem;
}

/* Form success state */
.form-success {
  padding: 1rem 1.25rem;
  background: rgba(0, 102, 255, 0.12);
  border: 1px solid rgba(0, 102, 255, 0.3);
  border-radius: var(--radius);
  color: var(--blue);
  font-size: 0.9375rem;
  font-weight: 500;
}

/* Responsive */
@media (max-width: 900px) {
  .nav {
    display: none;
  }

  .contact__details {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }
}

@media (max-width: 600px) {
  .header__inner {
    padding: 1rem 1.25rem;
  }

  .hero__content {
    padding: 3rem 1.25rem;
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero__actions .btn {
    justify-content: center;
  }

  .notify__inner {
    padding: 2.5rem 1.25rem;
    flex-direction: column;
    align-items: stretch;
  }

  .notify__form {
    max-width: none;
    flex-direction: column;
  }

  .contact {
    padding: 3.5rem 0;
  }

  .contact__inner {
    padding: 0 1.25rem;
  }
}