:root {
  --black: #000000;
  --white: #ffffff;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-700: #374151;
  --gray-900: #111827;
  --blue-400: #60a5fa;
  --footer-bg: #000000;
  --footer-border: rgba(255, 255, 255, 0.06);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --font-sans: "Plus Jakarta Sans", ui-sans-serif, system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  min-height: 100vh;
  background: #000000;
  color: var(--white);
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid rgba(255, 255, 255, 0.55);
  outline-offset: 3px;
}

.shell {
  position: relative;
  display: flex;
  min-height: 100vh;
  flex-direction: column;
  background: transparent;
  color: var(--white);
}

.scene-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  background-color: #000000;
  background-image: none;
}

.scene-bg::after {
  position: absolute;
  inset: 0;
  content: "";
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.28), rgba(0, 0, 0, 0.56));
}

.scene-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  opacity: 0.9;
  filter: contrast(0.95) saturate(0.9) brightness(0.68);
}

.nav-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  transition: background-color 0.3s ease;
}

.nav-bar.is-scrolled {
  background-color: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(12px);
}

.nav-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  max-width: 100%;
  padding: 1rem 2rem;
}

.nav-mark {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--white);
  white-space: nowrap;
  text-transform: none;
}

.nav-panel {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  flex-direction: column;
  gap: 0;
  padding: 0.75rem 2rem 1rem;
  background: rgba(0, 0, 0, 0.92);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-panel a {
  display: block;
  padding: 0.65rem 0;
  font-size: 0.95rem;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--white);
  transition: color 0.2s ease;
}

.nav-panel a:hover {
  color: var(--gray-300);
}

.nav-panel a[aria-current="page"] {
  color: var(--white);
}

.nav-panel.is-open {
  display: flex;
}

.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 0.5rem;
  border: none;
  background: transparent;
  color: var(--white);
  cursor: pointer;
}

.nav-toggle-icon {
  display: block;
}

@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }

  .nav-panel {
    display: flex;
    position: static;
    flex-direction: row;
    align-items: center;
    gap: 2rem;
    padding: 0;
    background: transparent;
    border: none;
  }

  .nav-panel a {
    display: inline;
    padding: 0;
  }
}

.hero {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  min-height: 100dvh;
  padding: 5rem 1rem 2.5rem;
  text-align: center;
}

.hero-inner {
  position: relative;
  z-index: 10;
  display: flex;
  max-width: 56rem;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.hero-title {
  margin: 0 0 1.5rem;
  font-size: clamp(2.5rem, 7vw, 3.75rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.025em;
  color: var(--white);
  text-transform: none;
}

.hero-tagline {
  margin: 0 0 2rem;
  max-width: 40rem;
  padding: 0 1rem;
  font-family: var(--font-sans);
  font-size: clamp(1.125rem, 2.4vw, 1.25rem);
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: 0;
  color: var(--white);
  text-transform: none;
}

.signup {
  width: 100%;
  max-width: 36rem;
  padding: 0 1rem;
}

.signup-row {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 0.5rem;
  border-radius: 1.5rem;
  background: rgba(255, 255, 255, 0.1);
}

@media (min-width: 640px) {
  .signup-row {
    flex-direction: row;
    align-items: stretch;
    gap: 0.5rem;
    border-radius: 9999px;
  }
}

.signup-input {
  width: 100%;
  min-height: 3rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 9999px;
  background: transparent;
  padding: 0.75rem 1.5rem;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 400;
  color: var(--white);
  text-align: center;
}

@media (min-width: 640px) {
  .signup-input {
    flex: 1 1 auto;
    min-height: auto;
    text-align: left;
  }
}

.signup-input::placeholder {
  color: rgba(255, 255, 255, 0.55);
}

.signup-input:focus {
  border-color: rgba(255, 255, 255, 0.4);
  outline: none;
}

.signup-btn {
  width: 100%;
  flex-shrink: 0;
  margin: 0;
  padding: 0.75rem 2rem;
  border: none;
  border-radius: 9999px;
  background: var(--white);
  color: var(--black);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color 0.2s ease;
}

@media (min-width: 640px) {
  .signup-btn {
    width: auto;
  }
}

.signup-btn:hover {
  background: #e5e7eb;
}

.signup-btn-label {
  display: inline-block;
}

.signup-hint {
  margin: 1rem 0 0;
  min-height: 1.25rem;
  font-size: 0.875rem;
  color: var(--gray-400);
}

.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;
}

.site-footer {
  position: relative;
  z-index: 20;
  padding: 1.75rem 1rem 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(12px);
  color: var(--white);
}

.footer-inner {
  display: flex;
  max-width: 72rem;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
    align-items: flex-start;
  }
}

.footer-brand-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.5rem;
}

@media (min-width: 768px) {
  .footer-brand-block {
    align-items: flex-start;
    text-align: left;
  }
}

.footer-brand {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.footer-brand a:hover {
  text-decoration: underline;
}

.footer-line {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--gray-300);
}

.footer-link {
  color: var(--gray-300);
  transition: color 0.2s ease;
}

.footer-link:hover,
.footer-link:focus-visible {
  color: var(--white);
  text-decoration: underline;
}

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

.footer-social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.72);
  transition: color 0.2s ease;
}

.footer-social-link:hover,
.footer-social-link:focus-visible {
  color: var(--white);
}

.footer-social-icon {
  display: block;
  width: 1.5rem;
  height: 1.5rem;
}

.footer-copy {
  margin: 1.25rem 0 0;
  text-align: center;
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.38);
}

.content-page {
  position: relative;
  z-index: 10;
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  align-items: center;
  max-width: 42rem;
  margin: 0 auto;
  padding: 6.25rem 1.5rem 2.5rem;
  width: 100%;
  text-align: center;
}

.content-title {
  margin: 0 0 1.25rem;
  font-size: clamp(1.5rem, 4vw, 1.875rem);
  font-weight: 600;
  letter-spacing: -0.03em;
}

.content-copy {
  margin: 0;
  max-width: 34rem;
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--gray-300);
}

@media (prefers-reduced-motion: reduce) {
  .signup-btn:hover {
    background: #cbd5e1;
  }
}