@import url("https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&display=swap");

:root {
  --navy: #0a0e1a;
  --navy-light: #111827;
  --navy-mid: #151d30;
  --text: #f0f4fa;
  --muted: #8a94a8;
  --accent: #d40000;
  --accent-blue: #ffeb3b;
  --font: "Outfit", system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--navy);
  color: var(--text);
  line-height: 1.5;
}

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

/* ── Header ── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 48px;
  height: 72px;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo__text {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.logo__x { color: var(--accent); }

.logo__binary {
  width: 32px;
  height: 32px;
  display: inline-flex;
  flex-shrink: 0;
}

.logo__binary-svg {
  width: 100%;
  height: 100%;
}

.logo__binary-spin {
  transform-box: view-box;
  transform-origin: center;
  animation: logo-binary-spin 14s linear infinite;
}

@keyframes logo-binary-spin {
  to { transform: rotate(360deg); }
}

.nav {
  display: flex;
  gap: 32px;
}

.nav__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.nav__link:hover,
.nav__link.is-active {
  color: var(--text);
}

.nav__link.is-active {
  border-bottom-color: var(--accent);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

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

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

.btn-login {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: #fff;
  color: #0a0e1a;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}

.btn-login:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(255, 255, 255, 0.12);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
}

/* ── Hero ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 48px 80px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: var(--navy);
}

.hero__wave {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 55%;
  background: var(--navy-mid);
  clip-path: polygon(0 35%, 100% 0, 100% 100%, 0 100%);
}

.hero__graphic {
  position: absolute;
  left: 2%;
  top: 50%;
  transform: translateY(-48%);
  pointer-events: none;
}

.hero__visual-wrap {
  width: min(720px, 68vw);
  aspect-ratio: 1;
  filter: drop-shadow(0 0 64px rgba(0, 212, 170, 0.16)) drop-shadow(0 0 24px rgba(255, 32, 64, 0.08));
}

.hero__visual {
  width: 100%;
  height: 100%;
  display: block;
}

.hero__ring {
  transform-box: view-box;
  transform-origin: center;
}

.hero__ring--outer {
  animation: hero-orbit 16s linear infinite;
}

.hero__ring--inner {
  animation: hero-orbit-reverse 12s linear infinite;
}

.hero__x {
  transform-box: view-box;
  transform-origin: center;
  animation: hero-x-breathe 5s ease-in-out infinite;
}

.hero__brand {
  font-family: var(--font);
  font-size: 42px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.hero__brand-dot {
  fill: #f2f7ff;
}

.hero__brand-x {
  fill: #ff2040;
}

@keyframes hero-orbit {
  to { transform: rotate(360deg); }
}

@keyframes hero-orbit-reverse {
  to { transform: rotate(-360deg); }
}

@keyframes hero-x-breathe {
  0%, 100% { opacity: 0.82; }
  50% { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .hero__ring--outer,
  .hero__ring--inner,
  .logo__binary-spin,
  .hero__x {
    animation: none;
  }
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 720px;
}

.hero__eyebrow {
  font-size: 0.9375rem;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.hero__title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero__highlight {
  background: linear-gradient(135deg, var(--accent), var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__desc {
  font-size: 1.0625rem;
  color: var(--muted);
  max-width: 540px;
  margin: 0 auto 32px;
  line-height: 1.65;
}

.hero__cta {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  padding: 14px 28px;
  background: var(--accent);
  color: #041510;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 700;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}

.btn-primary:hover {
  background: #e80000;
  transform: translateY(-1px);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  padding: 14px 28px;
  background: transparent;
  color: var(--text);
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.btn-outline:hover {
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.04);
}

/* ── Sections ── */
.features,
.pricing,
.faq {
  padding: 80px 48px;
  max-width: 1100px;
  margin: 0 auto;
}

.section-title {
  font-size: 1.75rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 48px;
  letter-spacing: -0.02em;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  padding: 28px;
  background: var(--navy-light);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 14px;
  transition: border-color 0.2s;
}

.feature-card:hover {
  border-color: rgba(0, 212, 170, 0.25);
}

.feature-card__icon {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 14px;
  letter-spacing: 0.1em;
}

.feature-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.6;
}

.pricing__card {
  max-width: 400px;
  margin: 0 auto;
  padding: 36px;
  background: var(--navy-light);
  border: 1px solid rgba(0, 212, 170, 0.2);
  border-radius: 16px;
  text-align: center;
}

.pricing__badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 12px;
}

.pricing__price {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 20px;
}

.pricing__price span {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
}

.pricing__list {
  list-style: none;
  text-align: left;
  margin-bottom: 28px;
}

.pricing__list li {
  font-size: 0.875rem;
  color: var(--muted);
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding-left: 20px;
  position: relative;
}

.pricing__list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.faq__item {
  background: var(--navy-light);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 10px;
  margin-bottom: 10px;
  overflow: hidden;
}

.faq__item summary {
  padding: 16px 20px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

.faq__item summary::-webkit-details-marker { display: none; }

.faq__item p {
  padding: 0 20px 16px;
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.6;
}

/* ── Footer ── */
.footer {
  padding: 40px 48px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  text-align: center;
}

.footer__brand {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.footer__brand span { color: var(--accent); }

.footer__copy {
  font-size: 0.8125rem;
  color: var(--muted);
}

.footer__copy a {
  color: var(--accent);
}

.footer__copy a:hover { text-decoration: underline; }

/* ── Responsive ── */
@media (max-width: 900px) {
  .header { padding: 0 24px; }

  .nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--navy-light);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding: 12px 0;
  }

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

  .nav__link {
    padding: 14px 24px;
    border-bottom: none;
  }

  .menu-toggle { display: flex; }

  .hero__graphic { display: none; }

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

  .features, .pricing, .faq { padding: 60px 24px; }
}