:root {
  --bg: #07141f;
  --surface: #0f2233;
  --surface-soft: #132b41;
  --ink: #f4f6f8;
  --muted: #bbcad8;
  --accent: #ff7a00;
  --accent-dark: #d66200;
  --line: rgba(255, 255, 255, 0.1);
  --ok: #27c7a8;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Outfit", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 15% 15%, #18324a 0, transparent 45%),
    radial-gradient(circle at 80% 5%, #173956 0, transparent 40%), var(--bg);
  min-height: 100vh;
  line-height: 1.5;
}

.aurora {
  position: fixed;
  z-index: -1;
  filter: blur(70px);
  opacity: 0.55;
  border-radius: 999px;
}

.aurora-a {
  width: 320px;
  height: 320px;
  background: #1ea7ff;
  left: -120px;
  top: 180px;
}

.aurora-b {
  width: 300px;
  height: 300px;
  background: #ff7a00;
  right: -110px;
  top: 90px;
}

.site-header,
.section,
.site-footer {
  width: min(1120px, calc(100% - 2.2rem));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0.75rem;
  z-index: 20;
  margin-top: 0.75rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(7, 20, 31, 0.72);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  text-decoration: none;
  color: var(--ink);
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 6px rgba(255, 122, 0, 0.22);
}

.header-actions {
  display: flex;
  gap: 0.8rem;
  align-items: center;
}

.lang-switch {
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
}

.lang-btn {
  font: inherit;
  color: var(--muted);
  background: transparent;
  border: 0;
  padding: 0.35rem 0.65rem;
  cursor: pointer;
}

.lang-btn.active {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.1);
}

.section {
  padding: 4.6rem 0;
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 2.2rem;
  align-items: center;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--ok);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
}

h1,
h2,
h3 {
  font-family: "Space Grotesk", sans-serif;
  line-height: 1.15;
  margin: 0;
}

h1 {
  font-size: clamp(2rem, 4.7vw, 3.9rem);
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
}

h3 {
  font-size: 1.15rem;
}

p {
  margin: 0;
}

.lead {
  margin-top: 1rem;
  color: var(--muted);
  max-width: 58ch;
  font-size: 1.08rem;
}

.cta-row {
  margin-top: 1.7rem;
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 0.75rem 1.15rem;
  font-weight: 600;
  transition: 180ms ease;
}

.btn-primary {
  background: var(--accent);
  color: #111;
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

.btn-ghost {
  border-color: var(--line);
  color: var(--ink);
}

.btn-ghost:hover {
  border-color: rgba(255, 255, 255, 0.28);
  transform: translateY(-1px);
}

.btn-block {
  width: 100%;
}

.form-status {
  min-height: 1.25rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.form-status.ok {
  color: var(--ok);
}

.form-status.error {
  color: #ff9a9a;
}

.hero-metrics {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

.hero-metrics article {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 12px;
  padding: 0.85rem 0.9rem;
}

.hero-metrics strong {
  display: block;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.15rem;
  margin-bottom: 0.1rem;
}

.hero-metrics span {
  color: var(--muted);
  font-size: 0.88rem;
}

.hero-media img {
  width: 100%;
  height: auto;
  display: block;
  filter: drop-shadow(0 18px 36px rgba(0, 0, 0, 0.3));
}

.section-title {
  margin-bottom: 1.4rem;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.95rem;
}

.card {
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
  border-radius: 14px;
  padding: 1.1rem;
}

.card p {
  margin-top: 0.5rem;
  color: var(--muted);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.helps-grid article {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 12px;
  padding: 0.85rem 0.8rem 0.85rem 1rem;
}

.steps article {
  border-left: 3px solid var(--accent);
  padding: 0.35rem 0 0.35rem 0.8rem;
}

.steps span {
  color: var(--ok);
  font-weight: 600;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
}

.steps p {
  margin-top: 0.45rem;
  color: var(--muted);
}

.demo {
  margin-bottom: 2.5rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(8, 23, 35, 0.75);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.4rem;
  padding: 1.4rem;
}

.demo-copy p,
.demo-copy li {
  color: var(--muted);
}

.demo-copy ul {
  margin: 1rem 0 0;
  padding-left: 1.1rem;
}

.demo-copy li + li {
  margin-top: 0.3rem;
}

.demo-form {
  display: grid;
  gap: 0.82rem;
}

.demo-form label {
  display: grid;
  gap: 0.35rem;
}

.demo-form span {
  font-size: 0.9rem;
  color: var(--muted);
}

input,
textarea {
  font: inherit;
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--ink);
  padding: 0.65rem 0.75rem;
}

input::placeholder,
textarea::placeholder {
  color: rgba(244, 246, 248, 0.4);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.3rem 0 1.8rem;
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  color: var(--muted);
}

.site-footer a {
  color: var(--ink);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

@media (max-width: 980px) {
  .hero,
  .demo {
    grid-template-columns: 1fr;
  }

  .cards-grid,
  .steps,
  .hero-metrics {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .site-header {
    flex-wrap: wrap;
    gap: 0.65rem;
    top: 0.5rem;
  }

  .header-actions {
    width: 100%;
    justify-content: space-between;
  }

  .section {
    padding: 3.6rem 0;
  }

  .cards-grid,
  .steps,
  .hero-metrics {
    grid-template-columns: 1fr;
  }
}