:root {
  --bg: #0b0b10;
  --surface: #14141c;
  --surface-2: #1c1c27;
  --border: #2a2a38;
  --text: #f5f3ff;
  --muted: #a7a3b8;
  --primary: #ff5a1f;
  --primary-soft: rgba(255, 90, 31, 0.14);
  --accent: #ffd23f;
  --radius: 20px;
  --max: 1120px;
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: inherit;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0;
}

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 11, 16, 0.82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  text-decoration: none;
}

.logo img {
  width: 28px;
  height: 28px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 15px;
}

.nav-links a:not(.btn) {
  text-decoration: none;
  color: var(--muted);
}

.nav-links a:not(.btn):hover {
  color: var(--text);
}

.lang {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 12px;
  font-weight: 600;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease;
}

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

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 10px 30px rgba(255, 90, 31, 0.35);
}

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

.nav .btn {
  padding: 10px 18px;
  font-size: 14px;
}

/* Hero */
.hero {
  padding: 72px 0 96px;
  position: relative;
}

.hero::before {
  content: "";
  position: absolute;
  inset: -200px 0 auto;
  height: 700px;
  background: radial-gradient(circle at 70% 30%, var(--primary-soft), transparent 60%);
  pointer-events: none;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 56px;
  align-items: center;
  position: relative;
}

.eyebrow {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(40px, 6vw, 68px);
}

.hero h1 em {
  font-style: normal;
  color: var(--primary);
}

.hero p.lead {
  font-size: 19px;
  color: var(--muted);
  max-width: 560px;
  margin: 22px 0 32px;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.specs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 28px;
  color: var(--muted);
  font-size: 14px;
}

.specs span::before {
  content: "●";
  color: var(--primary);
  margin-right: 8px;
  font-size: 10px;
  vertical-align: 2px;
}

/* Phone mockup */
.phone {
  width: 100%;
  max-width: 300px;
  aspect-ratio: 9 / 16;
  margin: 0 auto;
  border-radius: 36px;
  border: 8px solid #26262f;
  background: #000;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6), 0 0 0 1px #3a3a46;
  position: relative;
}

.phone video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.phone-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px;
  color: var(--muted);
  font-size: 14px;
  background: linear-gradient(160deg, #15151d, #2a1a14);
}

/* Sections */
section {
  padding: 88px 0;
}

.section-head {
  max-width: 680px;
  margin-bottom: 48px;
}

.section-head h2 {
  font-size: clamp(30px, 4vw, 44px);
}

.section-head p {
  color: var(--muted);
  font-size: 18px;
  margin: 14px 0 0;
}

.alt {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  counter-reset: step;
}

.card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

.alt .card {
  background: var(--bg);
}

.step {
  counter-increment: step;
}

.step::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--primary);
  margin-bottom: 16px;
}

.card h3 {
  font-size: 21px;
  margin-bottom: 10px;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

/* Demos */
.demos {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.demo figcaption {
  text-align: center;
  margin-top: 14px;
  font-size: 15px;
  color: var(--muted);
}

.demo figcaption strong {
  display: block;
  color: var(--text);
}

.demo {
  margin: 0;
}

.note {
  margin-top: 28px;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

/* Features */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 18px;
}

/* Contact form */
.contact {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: start;
}

.contact ul {
  padding: 0;
  margin: 24px 0 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.contact li::before {
  content: "✓";
  color: var(--primary);
  font-weight: 700;
  margin-right: 10px;
}

form {
  display: grid;
  gap: 16px;
}

.field {
  display: grid;
  gap: 6px;
}

label {
  font-size: 14px;
  font-weight: 600;
}

input,
select,
textarea {
  width: 100%;
  padding: 13px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font: inherit;
  font-size: 16px;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--primary);
  outline-offset: 1px;
}

.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-note {
  font-size: 13px;
  color: var(--muted);
  margin: 0;
}

.form-status {
  font-weight: 600;
  margin: 0;
}

.form-status.ok {
  color: #5ee0a0;
}

.form-status.err {
  color: #ff8a7a;
}

/* FAQ */
.faq {
  display: grid;
  gap: 12px;
  max-width: 820px;
}

details {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px 22px;
}

summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 17px;
}

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

/* Footer */
footer {
  padding: 48px 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 14px;
}

footer .container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 20px;
}

footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

footer a {
  text-decoration: none;
}

footer a:hover {
  color: var(--text);
}

.legal {
  flex-basis: 100%;
  font-size: 13px;
}

/* Legal pages */
.legal-page {
  max-width: 760px;
}

.legal-page h1 {
  font-size: clamp(32px, 5vw, 44px);
  margin-bottom: 8px;
}

.legal-page h2 {
  font-size: 22px;
  margin: 36px 0 8px;
}

.legal-page p {
  color: var(--muted);
  margin: 0;
}

.legal-page a,
.form-note a {
  color: var(--text);
}

/* Responsive */
@media (max-width: 900px) {
  .hero .container,
  .contact {
    grid-template-columns: 1fr;
  }

  .steps,
  .features {
    grid-template-columns: 1fr 1fr;
  }

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

  .nav-links a:not(.lang):not(.btn) {
    display: none;
  }
}

@media (max-width: 600px) {
  .container {
    padding: 0 16px;
  }

  .hero {
    padding: 48px 0 64px;
  }

  section {
    padding: 64px 0;
  }

  .steps,
  .features,
  .demos,
  .row {
    grid-template-columns: 1fr;
  }

  .nav-links {
    gap: 12px;
  }
}