:root {
  --color-bg: #0b0f17;
  --color-bg-elevated: #111827;
  --color-bg-soft: #151c2a;
  --color-primary: #f97316;
  --color-primary-soft: #fb923c;
  --color-ai: #38bdf8;
  --color-cta: #22c55e;
  --color-text: #f8fafc;
  --color-muted: #94a3b8;
  --color-border: rgba(248, 250, 252, 0.1);
  --font-display: "Barlow Condensed", system-ui, sans-serif;
  --font-body: "Barlow", system-ui, sans-serif;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4.5rem;
  --radius: 12px;
  --shell: 1120px;
  --header-h: 72px;
  --ease: 200ms ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.05;
  margin: 0;
  text-wrap: balance;
}

p {
  margin: 0;
}

.shell {
  width: min(100% - 2rem, var(--shell));
  margin-inline: auto;
}

.shell.narrow {
  width: min(100% - 2rem, 720px);
  text-align: center;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100px;
  z-index: 100;
  background: var(--color-cta);
  color: #04120a;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  font-weight: 600;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(11, 15, 23, 0.82);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--header-h);
}

.brand img {
  width: 140px;
  height: auto;
}

.nav {
  display: none;
  gap: 1.5rem;
  color: var(--color-muted);
  font-size: 0.95rem;
  font-weight: 500;
}

.nav a {
  transition: color var(--ease);
  cursor: pointer;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--color-text);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.75rem 1.25rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.98rem;
  border: 2px solid transparent;
  transition:
    opacity var(--ease),
    transform var(--ease),
    background var(--ease),
    border-color var(--ease),
    color var(--ease);
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:focus-visible {
  outline: 2px solid var(--color-ai);
  outline-offset: 3px;
}

.btn-primary {
  background: var(--color-cta);
  color: #052e16;
}

.btn-primary:hover {
  opacity: 0.92;
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary-soft);
  border-color: var(--color-primary);
}

.btn-secondary:hover {
  background: rgba(249, 115, 22, 0.12);
}

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

.btn-ghost:hover {
  border-color: rgba(248, 250, 252, 0.28);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  padding: 3px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.03);
}

.lang-btn {
  min-width: 40px;
  min-height: 36px;
  padding: 0 0.65rem;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition:
    color var(--ease),
    background var(--ease);
}

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

.lang-btn:focus-visible {
  outline: 2px solid var(--color-ai);
  outline-offset: 2px;
}

.lang-btn.is-active {
  background: rgba(249, 115, 22, 0.18);
  color: var(--color-primary-soft);
}

.header-cta {
  display: none;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(3rem, 8vw, 5.5rem) 0 clamp(4rem, 10vw, 6rem);
  isolation: isolate;
}

.hero-glow {
  position: absolute;
  inset: -20% -10% auto;
  height: 70%;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(249, 115, 22, 0.22), transparent 55%),
    radial-gradient(ellipse at 80% 0%, rgba(56, 189, 248, 0.16), transparent 50%),
    linear-gradient(180deg, #121a28 0%, transparent 100%);
  z-index: -1;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  gap: 3rem;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 1rem;
  color: var(--color-primary-soft);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow.accent-ai,
.accent-ai {
  color: var(--color-ai);
}

.hero h1 {
  font-size: clamp(2.6rem, 8vw, 4.6rem);
  margin-bottom: 1.25rem;
}

.lede,
.section-copy {
  color: var(--color-muted);
  font-size: 1.125rem;
  max-width: 38rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.hero-note {
  margin-top: 1rem;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.phone {
  width: min(100%, 300px);
  margin-inline: auto;
  padding: 12px;
  border-radius: 36px;
  background: linear-gradient(160deg, #1f2937, #0b0f17 60%);
  border: 1px solid rgba(248, 250, 252, 0.14);
  box-shadow:
    0 24px 60px rgba(0, 0, 0, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.phone-notch {
  width: 96px;
  height: 8px;
  margin: 6px auto 12px;
  border-radius: 999px;
  background: #0a0e16;
}

.phone-screen {
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(249, 115, 22, 0.08), transparent 30%),
    var(--color-bg-elevated);
  padding: 1.25rem;
  min-height: 460px;
}

.phone-top {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.phone-top img {
  width: 36px;
  height: 36px;
}

.phone-kicker {
  font-size: 0.75rem;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.phone-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
}

.muscle-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.muscle-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border);
}

.muscle-list li span {
  font-weight: 600;
}

.muscle-list li em {
  font-style: normal;
  color: var(--color-muted);
  font-size: 0.85rem;
}

.muscle-list li.active {
  border-color: rgba(249, 115, 22, 0.55);
  background: rgba(249, 115, 22, 0.12);
  box-shadow: 0 0 0 1px rgba(249, 115, 22, 0.15);
}

.section {
  padding: var(--space-3xl) 0;
}

.section.alt {
  background: linear-gradient(180deg, rgba(21, 28, 42, 0.65), rgba(11, 15, 23, 0));
}

.section.problem {
  padding-block: 3rem;
  border-block: 1px solid var(--color-border);
  background: rgba(17, 24, 39, 0.55);
}

.problem h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 1rem;
}

.problem p {
  color: var(--color-muted);
  font-size: 1.1rem;
}

.section-head {
  margin-bottom: 2.5rem;
  max-width: 40rem;
}

.section-head h2 {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: 0.75rem;
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
}

.steps li {
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-bg-soft);
}

.step-num {
  display: block;
  margin-bottom: 0.75rem;
  color: var(--color-primary);
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.steps h3,
.feature h3,
.roadmap h3 {
  font-size: 1.45rem;
  margin-bottom: 0.5rem;
}

.steps p,
.feature p,
.roadmap p {
  color: var(--color-muted);
}

.features {
  display: grid;
  gap: 1.25rem;
}

.feature {
  padding: 1.5rem;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--color-border);
}

.feature-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  margin-bottom: 1rem;
  border-radius: 12px;
  color: var(--color-primary);
  background: rgba(249, 115, 22, 0.12);
}

.feature-icon.ai {
  color: var(--color-ai);
  background: rgba(56, 189, 248, 0.12);
}

.roadmap {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.roadmap li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: start;
  padding: 1.25rem 1.35rem;
  border-radius: var(--radius);
  border: 1px dashed rgba(56, 189, 248, 0.28);
  background: rgba(56, 189, 248, 0.04);
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #052e16;
  background: var(--color-cta);
}

.badge.ai {
  color: #082f49;
  background: var(--color-ai);
}

.cta-band {
  padding: 4.5rem 0;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(34, 197, 94, 0.18), transparent 55%),
    var(--color-bg-elevated);
  border-block: 1px solid var(--color-border);
}

.cta-inner {
  text-align: center;
}

.cta-inner h2 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  margin-bottom: 0.75rem;
}

.cta-inner p {
  color: var(--color-muted);
  margin-bottom: 0.25rem;
}

.cta-inner .hero-actions {
  justify-content: center;
}

.site-footer {
  padding: 3rem 0 2.5rem;
}

.footer-inner {
  display: grid;
  gap: 1.5rem;
}

.footer-brand p {
  margin-top: 0.85rem;
  color: var(--color-muted);
  font-size: 0.92rem;
  max-width: 28rem;
}

.footer-brand img {
  width: 120px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  color: var(--color-muted);
  font-size: 0.95rem;
}

.footer-links a {
  transition: color var(--ease);
  cursor: pointer;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--color-text);
}

.copyright {
  color: #64748b;
  font-size: 0.85rem;
}

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

  .header-cta {
    display: inline-flex;
  }

  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 2.5rem;
  }

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

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

  .footer-inner {
    grid-template-columns: 1.4fr 1fr;
    align-items: start;
  }

  .copyright {
    grid-column: 1 / -1;
  }
}

@media (max-width: 767px) {
  .brand img {
    width: 120px;
  }
}

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

  .btn:hover {
    transform: none;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition-duration: 0.01ms !important;
  }
}