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

:root {
  --teal: #4df8d4;
  --purple: #8fa3ff;
  --bg: #081012;
  --surface: rgba(255,255,255,0.05);
  --border: rgba(255,255,255,0.10);
  --text: #effaf8;
  --text-muted: rgba(239,250,248,0.55);
  --radius: 1rem;
}

html { scroll-behavior: smooth; }

body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(64,224,208,0.18), transparent 40rem),
    radial-gradient(circle at bottom right, rgba(144,76,255,0.15), transparent 36rem),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
}

/* NAV */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: rgba(8,16,18,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-weight: 800;
  font-size: 1.1rem;
  background: linear-gradient(135deg, var(--teal), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

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

/* LANGUAGE SWITCHER */
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.15rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.15rem;
}

.lang-switch a {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s, background 0.2s;
}

.lang-switch a:hover { color: var(--text); }

.lang-switch a[aria-current="true"] {
  color: #061011;
  background: linear-gradient(135deg, var(--teal), var(--purple));
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: filter 0.2s, transform 0.15s, box-shadow 0.2s;
}

.btn-primary {
  background: linear-gradient(135deg, var(--teal), var(--purple));
  color: #061011;
}

.btn-primary:hover {
  filter: brightness(1.12);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(77,248,212,0.3);
}

.btn-ghost {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.09);
  transform: translateY(-1px);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.05rem;
}

/* HERO */
.hero {
  text-align: center;
  padding: 6rem 1.5rem 5rem;
  max-width: 860px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 1rem;
  border-radius: 999px;
  background: rgba(77,248,212,0.1);
  border: 1px solid rgba(77,248,212,0.25);
  color: var(--teal);
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 2rem;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

.gradient-text {
  background: linear-gradient(135deg, var(--teal), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-note {
  margin-top: 1rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* DEMO PREVIEW */
.preview {
  max-width: 820px;
  margin: 0 auto 6rem;
  padding: 0 1.5rem;
}

.preview-window {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  overflow: hidden;
  box-shadow: 0 32px 80px rgba(0,0,0,0.5);
}

.preview-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--border);
}

.preview-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.preview-dot:nth-child(1) { background: #ff5f57; }
.preview-dot:nth-child(2) { background: #ffbd2e; }
.preview-dot:nth-child(3) { background: #28c840; }

.preview-url {
  flex: 1;
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.preview-body {
  padding: 2rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.preview-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.preview-lang {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--teal);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.preview-bubble {
  background: rgba(77,248,212,0.08);
  border: 1px solid rgba(77,248,212,0.15);
  border-radius: 0.5rem;
  padding: 0.6rem 0.8rem;
  font-size: 0.88rem;
}

.preview-bubble.translated {
  background: rgba(143,163,255,0.08);
  border-color: rgba(143,163,255,0.15);
}

.preview-bubble .label {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

/* FEATURES */
section { padding: 5rem 1.5rem; }

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 3.5rem;
}

.section-tag {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--teal);
  margin-bottom: 0.75rem;
}

h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.section-sub {
  margin-top: 0.75rem;
  color: var(--text-muted);
  font-size: 1rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  max-width: 1000px;
  margin: 0 auto;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: border-color 0.2s, transform 0.2s;
}

.feature-card:hover {
  border-color: rgba(77,248,212,0.3);
  transform: translateY(-3px);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.feature-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* HOW IT WORKS */
.steps-bg { background: rgba(255,255,255,0.02); }

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
  position: relative;
}

.step {
  text-align: center;
  padding: 1.5rem;
}

.step-num {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--teal), var(--purple));
  color: #061011;
  font-weight: 900;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
}

.step h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.step p {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* PRICING */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.25rem;
  max-width: 860px;
  margin: 0 auto;
}

.plan-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
}

.plan-card.featured {
  border-color: rgba(77,248,212,0.4);
  background: rgba(77,248,212,0.05);
  position: relative;
}

.plan-badge {
  position: absolute;
  top: -0.6rem;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--teal), var(--purple));
  color: #061011;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 0.2rem 0.8rem;
  border-radius: 999px;
  white-space: nowrap;
}

.plan-name {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.plan-price {
  font-size: 2rem;
  font-weight: 900;
  margin-bottom: 0.25rem;
}

.plan-price span {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text-muted);
}

.plan-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex: 1;
  margin-bottom: 1.75rem;
}

.plan-features li {
  font-size: 0.88rem;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.plan-features li::before {
  content: "✓";
  color: var(--teal);
  font-weight: 700;
  flex-shrink: 0;
}

/* CTA BANNER */
.cta-banner {
  background: linear-gradient(135deg, rgba(77,248,212,0.1), rgba(143,163,255,0.08));
  border: 1px solid rgba(77,248,212,0.2);
  border-radius: 1.5rem;
  padding: 4rem 2rem;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.cta-banner h2 { margin-bottom: 1rem; }

.cta-banner p {
  color: var(--text-muted);
  margin-bottom: 2rem;
  font-size: 1rem;
}

/* FOOTER */
footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 1.5rem;
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  list-style: none;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.2s;
}

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

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* LANG COUNT STAT */
.stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
  margin: 3.5rem 0;
  padding: 0 1.5rem;
}

.stat {
  text-align: center;
}

.stat-num {
  font-size: 2.2rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--teal), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* RESPONSIVE */
@media (max-width: 640px) {
  nav { padding: 0.9rem 1.25rem; }
  .nav-links { gap: 0.75rem; }
  .nav-links li.nav-hide-mobile { display: none; }
  .preview-body { grid-template-columns: 1fr; }
  .stats { gap: 2rem; }
  .cta-banner { padding: 2.5rem 1.25rem; }
}