/* Verbatype landing v1 — hand-written CSS, no framework, no external fonts/CDNs. */

:root {
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial,
    sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;

  --max-width: 1120px;
  --gap: 24px;

  /* Light theme (default) */
  --color-bg: #fbfaf8;
  --color-bg-raised: #ffffff;
  --color-bg-sunken: #f2f0eb;
  --color-text: #1a1a1a;
  --color-text-muted: #5a5a58;
  --color-border: #e3e0d8;
  --color-accent: #b5472b;
  --color-accent-contrast: #ffffff;
  --color-accent-soft: #f5e3dc;
  --color-ru: #b5472b;
  --color-en: #2a5a7a;
  --color-success: #2e6b3e;
  --color-error: #b3261e;
  --shadow-card: 0 1px 2px rgba(20, 20, 20, 0.04), 0 8px 24px rgba(20, 20, 20, 0.05);
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #16151a;
    --color-bg-raised: #1e1d23;
    --color-bg-sunken: #111014;
    --color-text: #f1efe9;
    --color-text-muted: #b0ada4;
    --color-border: #34323a;
    --color-accent: #e08a67;
    --color-accent-contrast: #1a1006;
    --color-accent-soft: #3a2620;
    --color-ru: #e08a67;
    --color-en: #7cb0d6;
    --color-success: #6fcf87;
    --color-error: #ff8a80;
    --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
  }
}

/* Explicit overrides win over prefers-color-scheme when a page-level theme toggle is present. */
:root[data-theme="dark"] {
  --color-bg: #16151a;
  --color-bg-raised: #1e1d23;
  --color-bg-sunken: #111014;
  --color-text: #f1efe9;
  --color-text-muted: #b0ada4;
  --color-border: #34323a;
  --color-accent: #e08a67;
  --color-accent-contrast: #1a1006;
  --color-accent-soft: #3a2620;
  --color-ru: #e08a67;
  --color-en: #7cb0d6;
  --color-success: #6fcf87;
  --color-error: #ff8a80;
  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
}
:root[data-theme="light"] {
  --color-bg: #fbfaf8;
  --color-bg-raised: #ffffff;
  --color-bg-sunken: #f2f0eb;
  --color-text: #1a1a1a;
  --color-text-muted: #5a5a58;
  --color-border: #e3e0d8;
  --color-accent: #b5472b;
  --color-accent-contrast: #ffffff;
  --color-accent-soft: #f5e3dc;
  --color-ru: #b5472b;
  --color-en: #2a5a7a;
  --color-success: #2e6b3e;
  --color-error: #b3261e;
  --shadow-card: 0 1px 2px rgba(20, 20, 20, 0.04), 0 8px 24px rgba(20, 20, 20, 0.05);
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Header ---------- */

.site-header {
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: color-mix(in srgb, var(--color-bg) 92%, transparent);
  backdrop-filter: saturate(140%) blur(8px);
  z-index: 10;
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 64px;
}

.logo {
  display: flex;
  align-items: baseline;
  gap: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-text);
}

.logo-glyphs {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--color-accent);
  letter-spacing: -0.02em;
}

.site-nav {
  display: flex;
  gap: 28px;
  font-size: 0.95rem;
}

.site-nav a {
  text-decoration: none;
  color: var(--color-text-muted);
}

.site-nav a:hover {
  color: var(--color-text);
}

.nav-cta {
  text-decoration: none;
  background: var(--color-accent);
  color: var(--color-accent-contrast);
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
}

@media (max-width: 640px) {
  .site-nav {
    display: none;
  }
}

/* ---------- Sections generic ---------- */

section {
  padding: 72px 0;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-accent);
  margin: 0 0 12px;
}

h1,
h2,
h3 {
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2rem, 4.2vw, 3rem);
  margin: 0 0 20px;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  margin: 0 0 28px;
  max-width: 44ch;
}

h3 {
  font-size: 1.15rem;
  margin: 0 0 8px;
}

p {
  margin: 0 0 12px;
  color: var(--color-text-muted);
}

.lead {
  font-size: 1.1rem;
  max-width: 62ch;
}

/* ---------- Hero ---------- */

.hero {
  padding-top: 64px;
  padding-bottom: 56px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.hero-copy h1 {
  color: var(--color-text);
}

.hero-sub {
  font-size: 1.15rem;
  max-width: 48ch;
  margin-bottom: 32px;
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-visual {
    order: -1;
    max-width: 360px;
    margin: 0 auto;
  }
}

/* ---------- Waitlist form ---------- */

.waitlist-form .field-row {
  display: flex;
  gap: 10px;
  max-width: 420px;
}

.waitlist-form input[type="email"] {
  flex: 1;
  min-width: 0;
  font-family: inherit;
  font-size: 1rem;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-raised);
  color: var(--color-text);
}

.waitlist-form input[type="email"]:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}

.waitlist-form input[type="email"].is-invalid {
  border-color: var(--color-error);
}

.waitlist-form button {
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  padding: 12px 20px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: var(--color-accent-contrast);
  cursor: pointer;
  white-space: nowrap;
}

.waitlist-form button:hover {
  filter: brightness(1.06);
}

.waitlist-form button:disabled {
  opacity: 0.6;
  cursor: default;
}

.hp-field {
  position: absolute !important;
  left: -9999px !important;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.form-status {
  min-height: 1.4em;
  margin: 10px 0 0;
  font-size: 0.9rem;
}

.form-status[data-state="success"] {
  color: var(--color-success);
}

.form-status[data-state="error"] {
  color: var(--color-error);
}

@media (max-width: 480px) {
  .waitlist-form .field-row {
    flex-direction: column;
    max-width: 100%;
  }

  .waitlist-form button {
    width: 100%;
  }
}

/* ---------- Hero product visual: bilingual keyboard mock ---------- */
/* Placeholder illustration only — see HTML comment above for replacement note. */

.kb-mock {
  border-radius: var(--radius-lg);
  background: var(--color-bg-raised);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  padding: 16px;
}

.kb-mock-screen {
  background: var(--color-bg-sunken);
  border-radius: var(--radius-md);
  padding: 20px 18px;
  margin-bottom: 16px;
  font-size: 1.05rem;
  min-height: 76px;
}

.kb-mock-line--ru {
  color: var(--color-ru);
  font-weight: 600;
}

.kb-mock-line--en {
  color: var(--color-en);
  font-weight: 600;
}

.kb-mock-cursor {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--color-text-muted);
  vertical-align: middle;
  margin-left: 2px;
  animation: kb-blink 1.1s steps(1) infinite;
}

@keyframes kb-blink {
  50% {
    opacity: 0;
  }
}

.kb-mock-keys {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.kb-mock-row {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 6px;
}

.kb-mock-row span {
  background: var(--color-bg-sunken);
  border-radius: 6px;
  text-align: center;
  padding: 10px 0;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text);
}

.kb-mock-row--bottom {
  grid-template-columns: 44px 1fr 60px;
  align-items: center;
}

.kb-mock-mic {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  border-radius: 6px;
  padding: 8px 0;
}

.kb-mock-space {
  background: var(--color-bg-sunken);
  border-radius: 6px;
  height: 36px;
}

.kb-mock-lang {
  background: var(--color-bg-sunken);
  border-radius: 6px;
  text-align: center;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
  padding: 10px 4px;
}

/* ---------- Problem ---------- */

.problem {
  background: var(--color-bg-sunken);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

/* ---------- How it works ---------- */

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 32px;
  grid-template-columns: repeat(3, 1fr);
}

.steps li {
  display: flex;
  gap: 16px;
}

.step-num {
  flex: none;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
}

@media (max-width: 860px) {
  .steps {
    grid-template-columns: 1fr;
  }
}

/* ---------- Cards (differentiators + plans) ---------- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}

.card {
  background: var(--color-bg-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-card);
}

.card-glyphs {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-accent);
  background: var(--color-accent-soft);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 10px;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}

@media (max-width: 860px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- Roadmap ---------- */

.roadmap {
  background: var(--color-bg-sunken);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.roadmap-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
  max-width: 64ch;
}

.roadmap-list li {
  padding-left: 22px;
  position: relative;
  color: var(--color-text-muted);
}

.roadmap-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
}

.roadmap-list strong {
  color: var(--color-text);
  display: block;
  margin-bottom: 4px;
}

/* ---------- Plans ---------- */

.plan-card h3 {
  color: var(--color-accent);
}

/* ---------- Waitlist CTA ---------- */

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

.waitlist-cta h2 {
  margin-left: auto;
  margin-right: auto;
}

.waitlist-cta p {
  max-width: 46ch;
  margin-left: auto;
  margin-right: auto;
}

.waitlist-form--footer .field-row {
  margin: 0 auto;
}

.waitlist-form--footer .form-status {
  text-align: center;
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 32px 0 48px;
}

.footer-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  align-items: baseline;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.footer-row p {
  margin: 0;
}

.footer-privacy {
  flex-basis: 100%;
  font-size: 0.82rem;
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  .kb-mock-cursor {
    animation: none;
  }
}