:root {
  --ink: #071014;
  --ink-soft: #203036;
  --muted: #617076;
  --line: #dbe5e4;
  --surface: #ffffff;
  --surface-alt: #f4faf9;
  --teal: #23c7bd;
  --teal-dark: #0d766f;
  --coral: #ff5b4a;
  --coral-soft: #ffe6e2;
  --shadow: 0 24px 70px rgba(7, 16, 20, 0.12);
  --radius: 8px;
  --max: 1180px;
  color-scheme: light;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--surface);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: 0;
}

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

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

button,
select {
  font: inherit;
  letter-spacing: 0;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 30;
  padding: 10px 12px;
  background: var(--ink);
  color: white;
  border-radius: var(--radius);
  transform: translateY(-160%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 28px;
  align-items: center;
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px 28px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(219, 229, 228, 0.75);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: max-content;
  font-size: 1.03rem;
  font-weight: 800;
}

.site-nav,
.header-actions,
.language-switcher {
  display: flex;
  align-items: center;
}

.site-nav {
  justify-content: center;
  gap: 24px;
}

.site-nav a,
.language-link,
.site-footer a {
  color: var(--ink-soft);
  font-size: 0.92rem;
  font-weight: 650;
}

.site-nav a.active,
.site-nav a:hover,
.language-link.active,
.language-link:hover,
.site-footer a:hover {
  color: var(--ink);
}

.header-actions {
  gap: 14px;
}

.language-switcher {
  gap: 4px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.language-link {
  padding: 6px 8px;
  border-radius: 6px;
  font-size: 0.76rem;
}

.language-link.active {
  background: var(--ink);
  color: white;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--ink);
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-size: 0.94rem;
  font-weight: 800;
  line-height: 1.1;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    background 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button.primary {
  background: var(--ink);
  color: white;
  box-shadow: 0 10px 24px rgba(7, 16, 20, 0.18);
}

.button.secondary {
  border-color: var(--line);
  background: white;
  color: var(--ink);
}

.button.compact {
  min-height: 38px;
  padding: 10px 14px;
  font-size: 0.86rem;
}

main {
  overflow: hidden;
}

.hero,
.page-hero,
.band,
.report-section,
.latency-band,
.final-cta,
.feature-rail,
.dimension-grid,
.pricing-grid,
.faq-list,
.center-hero,
.site-footer {
  max-width: var(--max);
  margin: 0 auto;
  padding-right: 28px;
  padding-left: 28px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.96fr) minmax(380px, 0.86fr);
  gap: 56px;
  align-items: center;
  min-height: calc(100vh - 76px);
  padding-top: 42px;
  padding-bottom: 50px;
}

.hero-copy h1,
.page-hero h1,
.center-hero h1 {
  max-width: 830px;
  margin: 0;
  font-size: clamp(3.2rem, 4.9rem, 4.9rem);
  line-height: 0.94;
  letter-spacing: 0;
}

.hero-copy p,
.page-hero p,
.center-hero p,
.section-heading p,
.band p,
.latency-band p,
.final-cta p {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-size: 1.16rem;
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.proof-list {
  display: grid;
  gap: 10px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
}

.proof-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink-soft);
  font-weight: 700;
}

.proof-list li::before {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--teal);
  content: "";
}

.interview-mockup,
.report-preview,
.price-card,
.dimension-card,
.session-form {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
  box-shadow: var(--shadow);
}

.interview-mockup {
  position: relative;
  min-height: 520px;
  padding: 22px;
  background:
    linear-gradient(140deg, rgba(35, 199, 189, 0.14), transparent 42%),
    linear-gradient(320deg, rgba(255, 91, 74, 0.12), transparent 34%),
    white;
}

.mockup-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.86rem;
  font-weight: 800;
}

.demo-control {
  min-width: 76px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
  color: var(--ink);
  font-size: 0.8rem;
  font-weight: 800;
  cursor: pointer;
}

.voice-state {
  display: grid;
  place-items: center;
  min-height: 240px;
}

.pulse-ring {
  position: absolute;
  width: 132px;
  height: 132px;
  border: 2px solid rgba(35, 199, 189, 0.55);
  border-radius: 50%;
  animation: pulse 1800ms ease-in-out infinite;
}

.paused .pulse-ring,
.paused .waveform i {
  animation-play-state: paused;
}

.waveform,
.mini-wave {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  height: 92px;
}

.waveform i,
.mini-wave i,
.principle-visual i {
  display: block;
  width: 5px;
  height: var(--h);
  min-height: 18px;
  border-radius: 999px;
  background: var(--teal);
  animation: floatbar 1400ms ease-in-out infinite alternate;
}

.waveform i:nth-child(3n),
.mini-wave i:nth-child(3n),
.principle-visual i:nth-child(3n) {
  background: var(--coral);
  animation-delay: 220ms;
}

.transcript {
  display: grid;
  gap: 12px;
}

.transcript p {
  margin: 0;
  padding: 14px;
  border-left: 3px solid var(--teal);
  background: rgba(255, 255, 255, 0.74);
  color: var(--ink-soft);
  font-size: 0.96rem;
}

.transcript p:nth-child(2) {
  border-color: var(--coral);
}

.band {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 0.85fr);
  gap: 58px;
  align-items: start;
  padding-top: 92px;
  padding-bottom: 92px;
  border-top: 1px solid var(--line);
}

h2 {
  margin: 0;
  font-size: 2.25rem;
  line-height: 1.02;
  letter-spacing: 0;
}

.process-list {
  display: grid;
  gap: 12px;
}

.process-step,
.feature-row {
  display: grid;
  grid-template-columns: 68px 1fr;
  gap: 20px;
  align-items: start;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.process-step span,
.feature-row span {
  color: var(--coral);
  font-size: 0.82rem;
  font-weight: 900;
}

.process-step strong {
  color: var(--ink);
  font-size: 1.18rem;
}

.report-section {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(340px, 0.7fr);
  gap: 54px;
  align-items: center;
  padding-top: 86px;
  padding-bottom: 86px;
  background: var(--surface-alt);
  box-shadow: 0 0 0 100vmax var(--surface-alt);
  clip-path: inset(0 -100vmax);
}

.report-preview {
  padding: 24px;
}

.report-header,
.recommendation {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.report-header strong,
.recommendation span {
  color: var(--ink);
  font-size: 0.86rem;
  font-weight: 900;
}

.report-header span {
  color: var(--coral);
  font-weight: 900;
}

.score-lines {
  display: grid;
  gap: 10px;
  margin: 22px 0;
}

.score-lines span {
  width: var(--w);
  height: 12px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--teal), var(--coral));
}

.report-preview p {
  margin: 0 0 22px;
  color: var(--ink-soft);
}

.recommendation {
  align-items: flex-start;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.recommendation strong {
  max-width: 180px;
  text-align: right;
}

.latency-band {
  display: grid;
  grid-template-columns: minmax(280px, 0.7fr) minmax(0, 1fr);
  gap: 56px;
  align-items: center;
  padding-top: 92px;
  padding-bottom: 92px;
}

.latency-band .waveform {
  height: 190px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--ink);
}

.final-cta,
.center-hero {
  padding-top: 92px;
  padding-bottom: 92px;
  text-align: center;
}

.final-cta h2,
.center-hero h1,
.center-hero p,
.final-cta p {
  margin-right: auto;
  margin-left: auto;
}

.final-cta .button {
  margin-top: 28px;
}

.page-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 0.78fr);
  gap: 58px;
  align-items: center;
  padding-top: 76px;
  padding-bottom: 76px;
}

.page-hero .interview-mockup {
  min-height: 470px;
}

.feature-rail {
  padding-top: 32px;
  padding-bottom: 86px;
}

.feature-row h2 {
  font-size: 1.35rem;
}

.feature-row p {
  max-width: 760px;
  margin: 8px 0 0;
  color: var(--ink-soft);
}

.dimension-grid,
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  padding-top: 26px;
  padding-bottom: 92px;
}

.dimension-card,
.price-card {
  padding: 22px;
  box-shadow: none;
}

.dimension-card h2,
.price-card h2 {
  font-size: 1.24rem;
}

.dimension-card p,
.price-card p,
.faq-list p {
  color: var(--ink-soft);
}

.mini-wave {
  justify-content: flex-start;
  height: 54px;
  margin-bottom: 18px;
}

.pricing-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.price-card {
  display: grid;
  gap: 14px;
  align-content: start;
}

.price-card.featured {
  border-color: var(--ink);
  background: linear-gradient(180deg, white, #effefd);
}

.price {
  margin: 0;
  color: var(--ink);
  font-size: 2.6rem;
  font-weight: 900;
  line-height: 1;
}

.price-card strong {
  color: var(--coral);
}

.faq-list {
  padding-bottom: 92px;
}

.faq-list h2 {
  margin-bottom: 18px;
}

details {
  border-top: 1px solid var(--line);
}

details:last-child {
  border-bottom: 1px solid var(--line);
}

summary {
  cursor: pointer;
  padding: 18px 0;
  color: var(--ink);
  font-weight: 850;
}

details p {
  max-width: 760px;
  margin: 0 0 18px;
}

.principle-visual {
  display: grid;
  gap: 28px;
  align-content: center;
  min-height: 360px;
  padding: 28px;
  border-radius: var(--radius);
  background: var(--ink);
  color: white;
}

.principle-visual div {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 140px;
}

.principle-visual p {
  margin: 0;
  color: white;
  font-size: 1.45rem;
  font-weight: 850;
}

.session-form {
  display: grid;
  gap: 12px;
  padding: 24px;
}

.session-form label {
  color: var(--ink);
  font-size: 0.84rem;
  font-weight: 900;
}

.session-form select {
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
  color: var(--ink);
}

.form-status {
  min-height: 48px;
  margin: 0;
  color: var(--teal-dark);
  font-weight: 750;
}

.site-footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: end;
  padding-top: 34px;
  padding-bottom: 34px;
  border-top: 1px solid var(--line);
}

.site-footer p {
  max-width: 360px;
  margin: 12px 0 0;
  color: var(--muted);
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 16px;
}

.language-gate,
.noscript {
  display: grid;
  min-height: 100vh;
  place-items: center;
  align-content: center;
  gap: 16px;
  padding: 28px;
  text-align: center;
}

.language-gate h1,
.noscript h1 {
  margin: 0;
  font-size: 3rem;
}

.language-gate nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

@keyframes pulse {
  0% {
    transform: scale(0.8);
    opacity: 0.8;
  }
  100% {
    transform: scale(1.25);
    opacity: 0.18;
  }
}

@keyframes floatbar {
  from {
    transform: scaleY(0.7);
  }
  to {
    transform: scaleY(1.1);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: auto auto;
    justify-content: space-between;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 73px;
    right: 28px;
    left: 28px;
    display: none;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: white;
    box-shadow: var(--shadow);
  }

  .site-nav.open {
    display: grid;
    justify-items: start;
  }

  .header-actions {
    grid-column: 1 / -1;
    justify-content: space-between;
  }

  .hero,
  .page-hero,
  .band,
  .report-section,
  .latency-band {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .interview-mockup {
    min-height: 460px;
  }

  .dimension-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .site-header,
  .hero,
  .page-hero,
  .band,
  .report-section,
  .latency-band,
  .final-cta,
  .feature-rail,
  .dimension-grid,
  .pricing-grid,
  .faq-list,
  .center-hero,
  .site-footer {
    padding-right: 18px;
    padding-left: 18px;
  }

  .site-header {
    gap: 16px;
    padding-top: 14px;
    padding-bottom: 14px;
  }

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

  .language-switcher {
    justify-content: center;
  }

  .hero-copy h1,
  .page-hero h1,
  .center-hero h1 {
    font-size: 3.05rem;
    line-height: 0.98;
  }

  h2 {
    font-size: 2rem;
  }

  .proof-list li {
    align-items: flex-start;
  }

  .process-step,
  .feature-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .dimension-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .interview-mockup {
    min-height: auto;
    padding: 18px;
  }

  .voice-state {
    min-height: 190px;
  }

  .pulse-ring {
    width: 104px;
    height: 104px;
  }

  .recommendation {
    display: grid;
  }

  .recommendation strong {
    max-width: none;
    text-align: left;
  }

  .site-footer {
    grid-template-columns: 1fr;
  }

  .site-footer nav {
    justify-content: flex-start;
  }
}