:root {
  --bg: #0a0c0f;
  --surface: #111417;
  --surface2: #161b22;
  --border: #1e2329;
  --border2: #2a2f38;
  --accent: #00e5b4;
  --accent-dim: rgba(0, 229, 180, 0.08);
  --accent-glow: rgba(0, 229, 180, 0.28);
  --accent2: #ff5f40;
  --text: #e8eaf0;
  --muted: #606876;
  --subdued: #9aa2b4;
  color-scheme: dark;
}

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

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-weight: 300;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 229, 180, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 180, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
}

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

code,
pre,
.brand,
nav a,
.badge,
.section-label,
.scope-note,
.btn-primary,
.btn-secondary,
.step-tag,
.step-sub,
.install-copy code,
.pill,
.doc-tag,
.doc-grid strong,
.layer,
.mono-small,
.platform-item,
footer,
.waveform-text-row {
  font-family: "SFMono-Regular", "Roboto Mono", Consolas, "Liberation Mono", monospace;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(20px, 5vw, 72px);
  background: rgba(10, 12, 15, 0.9);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.03em;
}

nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 3vw, 32px);
}

nav a {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.06em;
  transition: color 0.15s;
}

nav a:hover {
  color: var(--accent);
}

.container {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 28px;
}

#top,
#how,
#try,
#developers {
  scroll-margin-top: 72px;
}

.section-label {
  margin-bottom: 14px;
  color: var(--accent);
  font-size: 11px;
  letter-spacing: 0.15em;
}

.section-h,
h1,
.cta-block h2,
.privacy-title {
  font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-weight: 800;
  letter-spacing: 0;
}

.section-h {
  margin-bottom: 20px;
  color: var(--text);
  font-size: clamp(24px, 4vw, 38px);
  line-height: 1.05;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 22px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  transition: border-color 0.15s, box-shadow 0.15s, color 0.15s, transform 0.15s;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg);
}

.btn-primary:hover {
  box-shadow: 0 8px 28px var(--accent-glow);
  transform: translateY(-2px);
}

.btn-secondary {
  color: var(--text);
  background: transparent;
  border: 1px solid var(--border2);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero {
  padding: clamp(40px, 6vw, 72px) 0 32px;
  animation: fadeUp 0.5s ease both;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 32px;
  padding: 5px 12px;
  border: 1px solid rgba(0, 229, 180, 0.2);
  border-radius: 4px;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: blink 2s infinite;
}

h1 {
  display: grid;
  margin-bottom: 24px;
  color: var(--text);
  font-size: clamp(48px, 6.8vw, 78px);
  line-height: 1.02;
  overflow-wrap: break-word;
}

.accent-line {
  display: block;
  color: var(--accent);
}

.tagline {
  max-width: 600px;
  margin-bottom: 36px;
  color: var(--subdued);
  font-size: clamp(15px, 2vw, 18px);
  line-height: 1.7;
  overflow-wrap: break-word;
}

.hero .cta-row {
  margin-bottom: 20px;
}

.scope-note {
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.flow-block,
.features,
.commands-block,
.docs-block,
.safety-block,
.platform-block {
  padding: 0 0 56px;
}

.flow-block {
  padding-top: 32px;
  animation: fadeUp 0.5s 0.08s ease both;
}

.waveform-wrap {
  overflow: hidden;
  margin-bottom: 18px;
  padding: 20px 20px 16px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.waveform-top {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.waveform-mic,
.feature-icon,
.privacy-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(0, 229, 180, 0.22);
  border-radius: 6px;
  background: var(--accent-dim);
  color: var(--accent);
  font-family: "SFMono-Regular", "Roboto Mono", Consolas, "Liberation Mono", monospace;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.waveform-mic {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
}

#voiceWave {
  display: block;
  flex: 1;
  min-width: 0;
  height: 72px;
}

.waveform-text-row {
  display: flex;
  align-items: center;
  min-height: 22px;
  padding: 0 2px;
  font-size: 13px;
}

.waveform-cmd {
  color: var(--subdued);
  letter-spacing: 0.02em;
}

.waveform-cursor {
  margin-left: 1px;
  color: var(--accent);
  animation: cursorBlink 0.8s step-end infinite;
  opacity: 0;
}

.waveform-result {
  margin-left: 16px;
  color: var(--accent);
  font-size: 12px;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.waveform-result.show {
  opacity: 1;
  transform: translateY(0);
}

.flow-row {
  display: flex;
  align-items: stretch;
  overflow-x: auto;
  padding-bottom: 4px;
}

.flow-step {
  position: relative;
  flex: 1;
  min-width: 130px;
  padding: 18px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.flow-step + .flow-step {
  margin-left: 28px;
}

.flow-step + .flow-step::before {
  content: ">";
  position: absolute;
  top: 50%;
  left: -18px;
  color: var(--muted);
  font-family: "SFMono-Regular", "Roboto Mono", Consolas, "Liberation Mono", monospace;
  font-size: 13px;
  transform: translateY(-50%);
}

.flow-step.highlight {
  background: rgba(0, 229, 180, 0.04);
  border-color: rgba(0, 229, 180, 0.25);
}

.step-tag {
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.step-main {
  margin-bottom: 6px;
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.4;
}

.step-sub {
  color: var(--accent);
  font-size: 10px;
  line-height: 1.4;
}

.intro-block {
  padding: 0 0 56px;
  animation: fadeUp 0.5s 0.12s ease both;
}

.intro-block p,
.install-copy p,
.docs-sub,
.commands-sub,
.arch-copy p,
.privacy-body,
.safety-intro {
  color: var(--subdued);
  line-height: 1.75;
}

.intro-block p {
  max-width: 680px;
  font-size: 15px;
}

.intro-block p + p {
  margin-top: 12px;
}

.features {
  animation: fadeUp 0.5s 0.16s ease both;
}

.features-split {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 16px;
  align-items: start;
}

.feature-col {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.feature-card,
.privacy-panel,
.install-block,
.doc-grid a,
.safety-card {
  background: var(--surface);
  border: 1px solid var(--border);
}

.feature-card {
  padding: 22px;
  border-radius: 10px;
  transition: border-color 0.2s, transform 0.2s;
}

.feature-card:hover {
  border-color: rgba(0, 229, 180, 0.3);
  transform: translateY(-3px);
}

.feature-icon {
  width: 42px;
  height: 28px;
  margin-bottom: 12px;
}

.feature-card h3 {
  margin-bottom: 7px;
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
}

.feature-card p,
.doc-grid small,
.safety-card p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.privacy-panel {
  padding: 28px;
  border-color: rgba(0, 229, 180, 0.22);
  border-radius: 14px;
  background: linear-gradient(145deg, #0d1a16 0%, #0a1410 100%);
  box-shadow: 0 0 48px rgba(0, 229, 180, 0.06), inset 0 0 32px rgba(0, 229, 180, 0.03);
}

.privacy-panel-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.privacy-icon {
  width: 46px;
  height: 34px;
  flex-shrink: 0;
}

.privacy-title {
  color: var(--text);
  font-size: 22px;
  line-height: 1.1;
}

.privacy-sub {
  margin-top: 4px;
  color: var(--accent);
  font-family: "SFMono-Regular", "Roboto Mono", Consolas, "Liberation Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.privacy-body {
  margin-bottom: 20px;
  font-size: 13px;
}

.privacy-list {
  display: flex;
  flex-direction: column;
  gap: 11px;
  list-style: none;
}

.privacy-list li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  color: var(--subdued);
  font-size: 13px;
  line-height: 1.5;
}

.privacy-check {
  flex-shrink: 0;
  color: var(--accent);
  font-family: "SFMono-Regular", "Roboto Mono", Consolas, "Liberation Mono", monospace;
  font-size: 12px;
  font-weight: 600;
}

.privacy-list strong {
  color: var(--text);
  font-weight: 600;
}

.install-block {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  gap: 32px;
  align-items: center;
  margin-bottom: 56px;
  padding: 36px;
  border-radius: 14px;
  animation: fadeUp 0.5s 0.2s ease both;
}

.install-copy p {
  margin-bottom: 10px;
  font-size: 13px;
}

.install-copy code {
  padding: 1px 5px;
  border-radius: 3px;
  background: var(--accent-dim);
  color: var(--accent);
  font-size: 12px;
}

pre {
  overflow-x: auto;
  margin: 0;
  padding: 22px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-size: 12px;
  line-height: 1.85;
}

.commands-block {
  animation: fadeUp 0.5s 0.24s ease both;
}

.commands-sub {
  margin-bottom: 22px;
  color: var(--muted);
  font-size: 13px;
}

.pill-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pill {
  padding: 8px 15px;
  border: 1px solid var(--border);
  border-radius: 100px;
  background: var(--surface);
  color: var(--subdued);
  cursor: default;
  font-size: 12px;
  transition: border-color 0.15s, color 0.15s;
}

.pill:hover {
  border-color: rgba(0, 229, 180, 0.35);
  color: var(--accent);
}

.docs-block {
  animation: fadeUp 0.5s 0.28s ease both;
}

.docs-sub {
  max-width: 580px;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 13px;
}

.doc-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.doc-grid a {
  display: grid;
  gap: 6px;
  min-height: 130px;
  padding: 18px;
  border-radius: 10px;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.doc-grid a:hover {
  border-color: rgba(0, 229, 180, 0.35);
  box-shadow: 0 6px 20px rgba(0, 229, 180, 0.07);
}

.doc-tag {
  color: var(--accent);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.doc-grid strong {
  color: var(--text);
  font-size: 11px;
  font-weight: 500;
  word-break: break-all;
}

.arch-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.9fr);
  gap: 40px;
  align-items: center;
  padding: 0 0 56px;
  animation: fadeUp 0.5s 0.32s ease both;
}

.arch-copy p {
  max-width: 520px;
  margin-bottom: 12px;
  font-size: 14px;
}

.arch-note {
  padding: 10px 14px;
  border-left: 2px solid var(--border2);
  border-radius: 0 6px 6px 0;
  color: var(--muted);
  font-size: 12px;
}

.layers {
  display: grid;
  gap: 8px;
}

.layer {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  border: 1px solid rgba(0, 229, 180, 0.14);
  border-radius: 8px;
  background: linear-gradient(90deg, rgba(0, 229, 180, 0.07), rgba(17, 20, 23, 0.5));
  color: var(--text);
  font-size: 12px;
}

.layer-n {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--bg);
  font-size: 10px;
  font-weight: 700;
}

.safety-block {
  animation: fadeUp 0.5s 0.36s ease both;
}

.safety-block .section-label {
  color: var(--accent2);
}

.safety-intro {
  max-width: 680px;
  margin-bottom: 28px;
  font-size: 14px;
}

.safety-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.safety-card {
  display: flex;
  gap: 14px;
  padding: 20px;
  border-radius: 10px;
}

.safety-x {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  margin-top: 1px;
  border: 1px solid rgba(255, 95, 64, 0.2);
  border-radius: 50%;
  background: rgba(255, 95, 64, 0.1);
  color: var(--accent2);
  font-size: 12px;
  font-weight: 700;
}

.safety-card strong {
  display: block;
  margin-bottom: 5px;
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
}

.platform-block {
  animation: fadeUp 0.5s 0.4s ease both;
}

.platform-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.platform-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 6px;
  font-size: 12px;
}

.platform-item.active {
  background: var(--accent-dim);
  border: 1px solid rgba(0, 229, 180, 0.25);
  color: var(--accent);
}

.platform-item.soon {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--muted);
}

.cta-block {
  padding: 64px 0 80px;
  border-top: 1px solid var(--border);
  text-align: center;
  animation: fadeUp 0.5s 0.44s ease both;
}

.cta-block h2 {
  margin-bottom: 12px;
  color: var(--text);
  font-size: clamp(28px, 5vw, 48px);
  line-height: 1.05;
}

.cta-block > p {
  margin-bottom: 28px;
  color: var(--muted);
  font-family: "SFMono-Regular", "Roboto Mono", Consolas, "Liberation Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.06em;
}

.cta-block .cta-row {
  justify-content: center;
}

.mono-small {
  margin-top: 22px;
  color: var(--border2);
  font-size: 11px;
  letter-spacing: 0.04em;
}

footer {
  position: relative;
  z-index: 1;
  padding: 28px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
  text-align: center;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.2;
  }
}

@keyframes cursorBlink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}

@media (max-width: 860px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    flex-wrap: wrap;
  }

  .features-split,
  .install-block,
  .arch-block,
  .doc-grid,
  .safety-grid {
    grid-template-columns: 1fr;
  }

  .flow-row {
    flex-direction: column;
  }

  .flow-step + .flow-step {
    margin-top: 24px;
    margin-left: 0;
  }

  .flow-step + .flow-step::before {
    content: "v";
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
  }
}

@media (max-width: 520px) {
  .container {
    width: 100%;
    max-width: 390px;
    margin: 0;
    overflow: hidden;
    padding: 0 24px;
  }

  .hero {
    padding-top: 44px;
  }

  h1 {
    font-size: clamp(32px, 8.2vw, 38px);
    line-height: 1.02;
  }

  .tagline {
    width: 100%;
    max-width: 100%;
    font-size: 15px;
  }

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

  .btn-primary,
  .btn-secondary {
    width: 100%;
    max-width: 100%;
    justify-content: center;
    text-align: center;
  }

  .scope-note {
    line-height: 1.5;
    overflow-wrap: break-word;
  }

  .waveform-wrap,
  .install-block,
  .privacy-panel,
  .feature-card,
  .safety-card,
  .doc-grid a,
  .flow-step {
    width: 100%;
    max-width: 100%;
  }

  .waveform-wrap {
    padding: 18px 16px 14px;
  }

  .waveform-top {
    gap: 12px;
  }

  .waveform-text-row {
    flex-wrap: wrap;
    row-gap: 6px;
  }

  .waveform-result {
    width: 100%;
    margin-left: 0;
  }
}