:root {
  --bg: #05070b;
  --text: #eef2f7;
  --muted: #8b93a3;
  --dim: #545b68;
  --line: rgba(255, 255, 255, 0.07);
  --line-2: rgba(255, 255, 255, 0.13);
  --glass: linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.02));
  --cyan: #22d3ee;
  --sky: #60a5fa;
  --violet: #a78bfa;
  --green: #34d399;
  --amber: #fbbf24;
  --red: #fb7185;
  --accent-grad: linear-gradient(135deg, #22d3ee 0%, #60a5fa 55%, #a78bfa 100%);
  --glow: rgba(34, 211, 238, 0.45);
  --font-display: "Segoe UI Variable Display", "Segoe UI", Inter, system-ui, sans-serif;
  --font: "Segoe UI Variable Text", "Segoe UI", Inter, system-ui, sans-serif;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a {
  color: inherit;
  text-decoration: none;
}
[dir="rtl"] body {
  font-family: "Segoe UI", Arial, sans-serif;
}

/* background */
.aurora {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}
.aurora::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: radial-gradient(ellipse at 30% 0%, #000 10%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 30% 0%, #000 10%, transparent 70%);
}
.aurora i {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.55;
}
.aurora .a1 {
  width: 720px;
  height: 720px;
  left: -220px;
  top: -300px;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.55), transparent 65%);
  animation: drift1 26s ease-in-out infinite alternate;
}
.aurora .a2 {
  width: 800px;
  height: 800px;
  right: -300px;
  top: 10%;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.5), transparent 65%);
  animation: drift2 32s ease-in-out infinite alternate;
}
.aurora .a3 {
  width: 520px;
  height: 520px;
  left: 35%;
  top: 60%;
  background: radial-gradient(circle, rgba(96, 165, 250, 0.32), transparent 65%);
  animation: drift3 22s ease-in-out infinite alternate;
}
@keyframes drift1 {
  to {
    transform: translate(120px, 60px);
  }
}
@keyframes drift2 {
  to {
    transform: translate(-120px, -80px);
  }
}
@keyframes drift3 {
  to {
    transform: translate(60px, -40px) scale(1.15);
  }
}

/* nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px clamp(16px, 5vw, 64px);
  background: rgba(5, 7, 11, 0.7);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
}
.brand img {
  width: 30px;
  height: 30px;
  border-radius: 8px;
}
.nav nav {
  display: flex;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
  margin-inline-start: 8px;
}
.nav nav a:hover {
  color: var(--text);
}
.nav-right {
  margin-inline-start: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}
.lang {
  height: 32px;
  padding: 0 12px;
  border-radius: 9px;
  border: 1px solid var(--line-2);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
}
.lang:hover {
  color: var(--text);
}

/* buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 11px 20px;
  border-radius: 12px;
  background: var(--accent-grad);
  color: #04121a;
  font-weight: 700;
  font-size: 14px;
  transition: transform 0.15s var(--spring), filter 0.15s, box-shadow 0.2s;
  box-shadow: 0 10px 30px rgba(34, 211, 238, 0.25);
}
.btn:hover {
  filter: brightness(1.08);
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(34, 211, 238, 0.35);
}
.btn:active {
  transform: scale(0.97);
}
.btn.sm {
  padding: 8px 14px;
  font-size: 13px;
  border-radius: 10px;
  box-shadow: none;
}
.btn.big {
  padding: 16px 28px;
  font-size: 16px;
  border-radius: 14px;
}

/* hero */
main {
  position: relative;
  z-index: 1;
}
.hero {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 40px;
  align-items: center;
  padding: clamp(40px, 8vh, 90px) clamp(16px, 5vw, 64px) 30px;
  max-width: 1240px;
  margin: 0 auto;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan);
  font-weight: 600;
}
.eyebrow i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan);
}
.eyebrow.violet {
  color: var(--violet);
}
.eyebrow.violet i {
  background: var(--violet);
  box-shadow: 0 0 12px var(--violet);
}
h1 {
  font-family: var(--font-display);
  font-size: clamp(38px, 5.2vw, 62px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 16px 0 18px;
  font-weight: 800;
}
.grad {
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p {
  color: var(--muted);
  font-size: 17px;
  max-width: 520px;
}
.cta {
  margin-top: 28px;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.meta {
  color: var(--dim);
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.meta .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--dim);
}
.trust {
  margin-top: 22px;
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 13px;
}
.trust b {
  color: var(--text);
}
.hero-shot {
  position: relative;
}
.shot {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line-2);
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(255, 255, 255, 0.03);
  transform: perspective(1400px) rotateY(-8deg) rotateX(3deg);
  transition: transform 0.6s var(--ease);
  animation: rise 0.8s var(--ease) both;
  mask-image: linear-gradient(180deg, #000 78%, transparent);
  -webkit-mask-image: linear-gradient(180deg, #000 78%, transparent);
}
[dir="rtl"] .shot {
  transform: perspective(1400px) rotateY(8deg) rotateX(3deg);
}
.hero-shot:hover .shot {
  transform: perspective(1400px) rotateY(0) rotateX(0);
}
.shot img {
  display: block;
  width: 100%;
}
.shot-glow {
  position: absolute;
  inset: 10% -10% -20% -10%;
  background: radial-gradient(ellipse, rgba(34, 211, 238, 0.25), transparent 65%);
  filter: blur(40px);
  z-index: -1;
}

/* stats strip */
.strip {
  max-width: 1240px;
  margin: 10px auto 0;
  padding: 0 clamp(16px, 5vw, 64px);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.stat {
  padding: 16px 18px;
  border-radius: 14px;
  background: var(--glass);
  border: 1px solid var(--line);
}
.stat b {
  display: block;
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 700;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat span {
  color: var(--dim);
  font-size: 12px;
}

/* features */
.features {
  max-width: 1240px;
  margin: 0 auto;
  padding: 90px clamp(16px, 5vw, 64px) 30px;
}
h2 {
  font-family: var(--font-display);
  font-size: clamp(26px, 3.4vw, 38px);
  letter-spacing: -0.02em;
  font-weight: 800;
}
.sub {
  color: var(--muted);
  margin-top: 8px;
  font-size: 16px;
}
.grid {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.card {
  padding: 22px;
  border-radius: 18px;
  background: var(--glass);
  border: 1px solid var(--line);
  transition: transform 0.25s var(--spring), border-color 0.2s, box-shadow 0.25s;
}
.card:hover {
  transform: translateY(-4px);
  border-color: rgba(34, 211, 238, 0.35);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
}
.card .ic {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 20px;
  background: rgba(255, 255, 255, 0.06);
  margin-bottom: 14px;
}
.card b {
  display: block;
  font-size: 16px;
  margin-bottom: 6px;
}
.card p {
  color: var(--muted);
  font-size: 14px;
}
.rise {
  animation: rise 0.6s var(--ease) both;
  animation-delay: var(--d, 0ms);
}
@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* browser */
.browser {
  max-width: 1240px;
  margin: 0 auto;
  padding: 60px clamp(16px, 5vw, 64px);
}
.browser-card {
  display: flex;
  gap: 32px;
  align-items: center;
  padding: 34px;
  border-radius: 24px;
  background: linear-gradient(120deg, rgba(167, 139, 250, 0.12), transparent 55%), var(--glass);
  border: 1px solid rgba(167, 139, 250, 0.3);
}
.b-logo {
  width: 140px;
  height: 140px;
  border-radius: 32px;
  flex: none;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  animation: float 5s ease-in-out infinite;
}
@keyframes float {
  50% {
    transform: translateY(-8px);
  }
}
.b-text h2 {
  margin: 6px 0 8px;
  background: linear-gradient(90deg, #fff, #c4b5fd);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.b-text p {
  color: var(--muted);
  max-width: 620px;
}
.b-text .cta {
  margin-top: 20px;
}

/* faq */
.faq {
  max-width: 820px;
  margin: 0 auto;
  padding: 40px clamp(16px, 5vw, 64px) 90px;
}
.faq h2 {
  margin-bottom: 18px;
}
details {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--glass);
  margin-bottom: 10px;
  padding: 0 18px;
}
summary {
  cursor: pointer;
  padding: 16px 0;
  font-weight: 600;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
summary::after {
  content: "+";
  color: var(--dim);
  font-size: 20px;
}
details[open] summary::after {
  content: "–";
}
details p {
  color: var(--muted);
  padding: 0 0 16px;
  font-size: 14.5px;
}
details p b {
  color: var(--text);
}

footer {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 22px clamp(16px, 5vw, 64px);
  border-top: 1px solid var(--line);
  color: var(--dim);
  font-size: 13px;
}
footer a:hover {
  color: var(--text);
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
  }
  .shot,
  [dir="rtl"] .shot {
    transform: none;
  }
  .grid {
    grid-template-columns: 1fr 1fr;
  }
  .strip {
    grid-template-columns: 1fr 1fr;
  }
  .nav nav {
    display: none;
  }
}
@media (max-width: 560px) {
  .grid {
    grid-template-columns: 1fr;
  }
  .browser-card {
    flex-direction: column;
    text-align: center;
  }
  .b-text .cta {
    justify-content: center;
  }
}