:root {
  --bg: #020617;
  --bg-soft: #020617;
  --bg-muted: #020617;
  --card-bg: #020617;
  --border-subtle: rgba(148, 163, 184, 0.35);
  --accent: #38bdf8;
  --accent-soft: rgba(56, 189, 248, 0.12);
  --accent-strong: #0ea5e9;
  --text-main: #e5e7eb;
  --text-muted: #9ca3af;
  --text-softer: #6b7280;
  --danger: #f97373;
  --radius-lg: 20px;
  --radius-xl: 24px;
  --shadow-soft: 0 24px 80px rgba(15, 23, 42, 0.85);
}

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

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
  background: radial-gradient(circle at top, #0f172a 0, #020617 45%, #000 100%);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(2, 6, 23, 0.9), rgba(2, 6, 23, 0.6));
  border-bottom: 1px solid rgba(30, 64, 175, 0.6);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  gap: 16px;
}

.logo {
  font-weight: 700;
  letter-spacing: 0.14em;
  font-size: 0.9rem;
  text-transform: uppercase;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.45);
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.24), rgba(15, 23, 42, 0.9));
}

.main-nav {
  display: flex;
  gap: 18px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.main-nav a {
  padding: 4px 0;
  position: relative;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: linear-gradient(to right, var(--accent), #a855f7);
  border-radius: 999px;
  transition: width 0.2s ease-out;
}

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

.main-nav a:hover::after {
  width: 100%;
}

.lang-switcher select {
  background: rgba(15, 23, 42, 0.9);
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  color: var(--text-main);
  padding: 6px 12px;
  font-size: 0.8rem;
}

/* Hero */

.hero {
  padding: 52px 0 40px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 40px;
  align-items: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  color: var(--accent);
  border: 1px solid rgba(56, 189, 248, 0.45);
  background: radial-gradient(circle at left, rgba(56, 189, 248, 0.18), rgba(15, 23, 42, 0.85));
}

.hero h1 {
  font-size: clamp(2.4rem, 4vw, 3.1rem);
  line-height: 1.08;
  margin: 18px 0 12px;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-size: 0.98rem;
  color: var(--text-softer);
  max-width: 32rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.9rem;
  cursor: pointer;
  transition: transform 0.15s ease-out, box-shadow 0.15s ease-out, background 0.15s ease-out,
    border-color 0.15s ease-out;
}

.btn.primary {
  background: linear-gradient(to right, var(--accent-strong), #a855f7);
  box-shadow: 0 18px 40px rgba(56, 189, 248, 0.5);
}

.btn.primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 22px 50px rgba(37, 99, 235, 0.65);
}

.btn.ghost {
  border-color: rgba(148, 163, 184, 0.6);
  background: radial-gradient(circle at top left, rgba(148, 163, 184, 0.28), rgba(15, 23, 42, 0.95));
  color: var(--text-main);
}

.btn.ghost:hover {
  border-color: rgba(248, 250, 252, 0.7);
}

.hero-note {
  font-size: 0.8rem;
  color: var(--text-softer);
  margin-top: 8px;
}

/* Hero right */

.hero-media {
  position: relative;
}

.hero-card {
  border-radius: 22px;
  background: radial-gradient(circle at top, rgba(15, 23, 42, 0.9), #020617);
  border: 1px solid rgba(30, 64, 175, 0.7);
  box-shadow: var(--shadow-soft);
  padding: 16px 16px 18px;
}

.hero-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.hero-status {
  font-size: 0.75rem;
  color: var(--accent);
}

.hero-card-body {
  border-radius: 18px;
  padding: 12px;
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.16), rgba(15, 23, 42, 0.98));
  border: 1px solid rgba(148, 163, 184, 0.35);
}

.hero-waveform {
  font-size: 0.85rem;
  margin-bottom: 12px;
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(148, 163, 184, 0.4);
  text-align: center;
}

.hero-bullets {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.hero-bullets li::before {
  content: "•";
  color: var(--accent);
  margin-right: 6px;
}

/* Sections */

.section {
  padding: 40px 0;
}

.section.muted {
  background: radial-gradient(circle at top, rgba(15, 23, 42, 0.95), rgba(2, 6, 23, 0.98));
}

.section h2 {
  font-size: 1.6rem;
  margin: 0 0 8px;
}

.section-intro {
  font-size: 0.96rem;
  color: var(--text-softer);
  max-width: 32rem;
  margin: 0 0 24px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: radial-gradient(circle at top left, rgba(15, 23, 42, 0.96), rgba(15, 23, 42, 1));
  padding: 14px 14px 16px;
}

.card h3 {
  font-size: 0.98rem;
  margin: 0 0 6px;
}

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

/* Steps */

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.step {
  position: relative;
  border-radius: var(--radius-lg);
  background: radial-gradient(circle at top left, rgba(30, 64, 175, 0.5), rgba(15, 23, 42, 0.98));
  padding: 16px 14px 16px 18px;
  border: 1px solid rgba(59, 130, 246, 0.65);
}

.step-number {
  position: absolute;
  top: 10px;
  right: 12px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.step h3 {
  font-size: 0.98rem;
  margin: 0 0 8px;
}

.step p {
  font-size: 0.9rem;
  color: var(--text-main);
}

/* Pricing */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.pricing-card {
  position: relative;
}

.pricing-card.popular {
  border-color: rgba(248, 250, 252, 0.8);
  box-shadow: 0 18px 55px rgba(59, 130, 246, 0.65);
}

.tag {
  position: absolute;
  top: 10px;
  right: 12px;
  font-size: 0.7rem;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(248, 250, 252, 0.1);
  border: 1px solid rgba(248, 250, 252, 0.7);
}

.pricing-price {
  font-weight: 600;
  margin: 6px 0 8px;
}

.pricing-features {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.86rem;
  color: var(--text-softer);
}

.pricing-features li {
  margin-bottom: 4px;
}

/* Form */

.waitlist-form {
  margin-top: 24px;
  max-width: 420px;
}

.waitlist-form label {
  font-size: 0.86rem;
  color: var(--text-muted);
}

.waitlist-input-row {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.waitlist-input-row input {
  flex: 1;
  border-radius: 999px;
  padding: 9px 12px;
  border: 1px solid rgba(148, 163, 184, 0.7);
  background: rgba(15, 23, 42, 0.98);
  color: var(--text-main);
  font-size: 0.86rem;
}

.waitlist-input-row input:focus {
  outline: none;
  border-color: var(--accent);
}

.form-note {
  margin-top: 6px;
  font-size: 0.78rem;
  color: var(--text-softer);
}

/* Footer */

.site-footer {
  border-top: 1px solid rgba(30, 64, 175, 0.6);
  padding: 16px 0 22px;
  margin-top: 20px;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  font-size: 0.8rem;
  color: var(--text-softer);
}

/* RTL support */

html[dir="rtl"] body {
  direction: rtl;
}

html[dir="rtl"] .header-inner,
html[dir="rtl"] .hero-inner {
  flex-direction: row-reverse;
}

html[dir="rtl"] .main-nav {
  flex-direction: row-reverse;
}

/* Responsive */

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-media {
    order: -1;
  }

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

  .pricing-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 640px) {
  .header-inner {
    flex-wrap: wrap;
  }

  .main-nav {
    display: none;
  }

  .waitlist-input-row {
    flex-direction: column;
  }

  .hero {
    padding-top: 32px;
  }
}