:root {
  --bg: #0d0d15;
  --bg2: #111119;
  --text: #f5f4fb;
  --muted: rgba(245, 244, 251, .55);
  --muted-soft: rgba(245, 244, 251, .45);
  --border: rgba(255, 255, 255, .06);
  --surface: rgba(255, 255, 255, .03);
  --accent: #6c5ce7;
  --accent2: #a29bfe;
  --pink: #fd79a8;
  --teal: #00cec9;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Manrope', system-ui, sans-serif;
  overflow-x: hidden;
}

h1, h2, h3, .brand, .btn { font-family: 'Plus Jakarta Sans', system-ui, sans-serif; }

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

.grad-text {
  background: linear-gradient(135deg, var(--accent2), var(--pink));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.btn {
  display: inline-block;
  font-weight: 700;
  text-decoration: none;
  border-radius: 100px;
  padding: 16px 30px;
  font-size: 16px;
  transition: transform .15s ease, opacity .15s ease;
}
.btn:active { transform: scale(.97); }
.btn-primary {
  color: var(--bg);
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 10px 30px -8px rgba(108, 92, 231, .6);
}
.btn-primary:hover { opacity: .92; }
.btn-light {
  color: var(--text);
  background: var(--bg);
}
.btn-sm { padding: 10px 20px; font-size: 14px; font-weight: 600; }
.btn-lg { padding: 16px 32px; }

/* ===== NAV ===== */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(13, 13, 21, .7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1180px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 24px;
}
.brand { display: flex; align-items: center; gap: 9px; font-size: 18px; font-weight: 800; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  flex-shrink: 0;
}

/* ===== HERO ===== */
.hero { position: relative; padding: 56px 24px 80px; overflow: hidden; }
.hero-glow {
  position: absolute; top: -140px; right: -160px;
  width: 420px; height: 420px; border-radius: 50%;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
  opacity: .35; filter: blur(10px);
  pointer-events: none;
}
.hero-inner {
  position: relative; z-index: 1;
  max-width: 1180px; margin: 0 auto;
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center;
}
.badge {
  display: inline-flex; align-items: center; gap: 7px;
  font: 600 12px 'Plus Jakarta Sans', sans-serif; color: var(--accent2);
  background: rgba(108, 92, 231, .14); border: 1px solid rgba(108, 92, 231, .35);
  padding: 7px 14px; border-radius: 100px; margin-bottom: 22px;
}
.hero-copy h1 {
  font-size: 48px; font-weight: 800; line-height: 1.1; margin-bottom: 20px;
  text-wrap: pretty;
}
.hero-copy .lead {
  font-size: 17px; line-height: 1.6; color: var(--muted);
  max-width: 480px; margin-bottom: 32px;
}
.hero-actions { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.hero-note { font-size: 13px; font-weight: 500; color: var(--muted-soft); }

.hero-visual { display: flex; justify-content: center; }
.brain-stage {
  width: 550px; height: 480px; touch-action: none; cursor: grab;
}
.brain-stage:active { cursor: grabbing; }
.brain-stage canvas { display: block; width: 100%; height: 100%; }

/* ===== PROBLEM / SOLUTION ===== */
.problem-solution {
  max-width: 1180px; margin: 0 auto; padding: 48px 24px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
}
.ps-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 20px; padding: 32px;
}
.ps-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.ps-card p { font-size: 15px; line-height: 1.6; color: var(--muted); }
.ps-emoji { font-size: 26px; margin-bottom: 12px; }
.ps-highlight {
  background: linear-gradient(160deg, rgba(108, 92, 231, .16), rgba(253, 121, 168, .1));
  border-color: rgba(162, 155, 254, .3);
}
.ps-highlight p { color: rgba(245, 244, 251, .75); }

/* ===== FEATURES ===== */
.features { max-width: 1180px; margin: 0 auto; padding: 56px 24px; text-align: center; }
.features h2 { font-size: 32px; font-weight: 800; margin-bottom: 12px; }
.section-sub { font-size: 15px; color: var(--muted-soft); margin-bottom: 40px; }
.feature-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; text-align: left;
}
.feature-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 18px; padding: 22px; transition: border-color .2s ease;
}
.feature-card:hover { border-color: rgba(162, 155, 254, .4); }
.f-icon { font-size: 24px; margin-bottom: 12px; }
.f-title { font: 700 16px 'Plus Jakarta Sans', sans-serif; margin-bottom: 6px; }
.f-desc { font-size: 13.5px; line-height: 1.5; color: var(--muted); }

/* ===== HOW IT WORKS ===== */
.how { background: var(--bg2); padding: 56px 24px; }
.how h2 { max-width: 1180px; margin: 0 auto 40px; font-size: 28px; font-weight: 800; text-align: center; }
.how-grid { max-width: 1180px; margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.how-step { text-align: center; }
.how-num {
  width: 46px; height: 46px; border-radius: 14px; margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: var(--bg); font: 800 18px 'Plus Jakarta Sans', sans-serif;
  display: flex; align-items: center; justify-content: center;
}
.how-title { font: 600 14px 'Plus Jakarta Sans', sans-serif; margin-bottom: 6px; }
.how-desc { font-size: 12.5px; color: var(--muted-soft); }

/* ===== INTERACTIVE DEMO (real ilova kartasi namunasi) ===== */
.demo-row {
  max-width: 1180px; margin: 64px auto 0; padding-top: 56px;
  border-top: 1px solid var(--border);
  display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 48px; align-items: center;
}
.demo-eyebrow {
  display: inline-flex; font: 700 12px 'Plus Jakarta Sans', sans-serif; color: var(--teal);
  background: rgba(0, 206, 201, .12); border: 1px solid rgba(0, 206, 201, .3);
  padding: 6px 14px; border-radius: 100px; margin-bottom: 18px;
}
.demo-caption {
  font: 600 19px/1.5 'Plus Jakarta Sans', sans-serif; color: var(--text);
  margin-bottom: 18px; min-height: 90px; transition: opacity .2s ease;
}
.demo-progress { font-size: 13px; color: var(--muted-soft); font-weight: 700; margin-bottom: 12px; }
.demo-dots { display: flex; gap: 7px; flex-wrap: wrap; }
.demo-dot {
  width: 9px; height: 9px; border-radius: 50%; background: var(--border);
  cursor: pointer; transition: background .2s ease, transform .2s ease;
}
.demo-dot.active { background: var(--accent2); transform: scale(1.3); }

.demo-visual { display: flex; justify-content: center; }
.demo-phone {
  width: 260px; height: 480px; border-radius: 36px;
  background: #15151f; border: 1px solid rgba(255, 255, 255, .08);
  padding: 14px; box-shadow: 0 40px 80px -30px rgba(0, 0, 0, .7);
}
.demo-card {
  width: 100%; height: 100%; position: relative;
  transform-style: preserve-3d; transition: transform .6s cubic-bezier(.4, .2, .2, 1);
  cursor: pointer;
}
.demo-card.flipped { transform: rotateY(180deg); }
.demo-face {
  position: absolute; inset: 0; backface-visibility: hidden; -webkit-backface-visibility: hidden;
  border-radius: 24px; padding: 28px 22px; display: flex; flex-direction: column;
  justify-content: center; align-items: center; text-align: center;
  border: 1px solid rgba(255, 255, 255, .08);
}
.demo-front { background: repeating-linear-gradient(135deg, #1c1c2a 0 10px, #191926 10px 20px); }
.demo-image { width: 100%; max-width: 190px; margin-bottom: 16px; position: relative; }
.demo-image img {
  width: 100%; height: 110px; object-fit: cover; border-radius: 16px; display: block;
  border: 1px solid rgba(255, 255, 255, .1); transition: height .15s ease;
}
.demo-image.portrait img { height: 210px; }
.demo-image-credit {
  position: absolute; bottom: 6px; right: 8px; font-size: .55rem; font-weight: 600;
  color: rgba(255, 255, 255, .85); background: rgba(0, 0, 0, .45); padding: 2px 6px;
  border-radius: 8px; backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
}
.demo-word {
  font: 800 30px 'Plus Jakarta Sans', sans-serif;
  background: linear-gradient(45deg, var(--teal), #81ecec);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  margin-bottom: 8px;
}
.demo-phon { font-size: 15px; color: var(--muted); }
.demo-audio {
  position: absolute; bottom: 20px; left: 20px; width: 46px; height: 46px;
  border-radius: 50%; background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .18);
  display: flex; align-items: center; justify-content: center; font-size: 18px; cursor: pointer;
}
.demo-audio:active { transform: scale(.9); }
.demo-hint { position: absolute; bottom: 26px; right: 22px; font-size: 11px; color: var(--muted-soft); font-weight: 600; }
.demo-back {
  background: linear-gradient(145deg, #1f1f33, #141424); transform: rotateY(180deg);
  justify-content: space-between;
}
.demo-tap-hint { font-size: 11px; color: var(--accent2); text-transform: uppercase; letter-spacing: 1px; font-weight: 700; }
.demo-trans {
  font: 700 22px 'Plus Jakarta Sans', sans-serif; color: var(--pink);
  border-bottom: 1px solid var(--border); padding-bottom: 14px; width: 100%; margin-top: 10px;
}
.demo-mnem {
  font-size: 14.5px; line-height: 1.55; color: var(--text); background: rgba(0, 0, 0, .3);
  padding: 14px; border-radius: 14px; border-left: 3px solid var(--teal); text-align: left; width: 100%; margin-top: 14px;
}
.demo-flip-hint { font-size: 11px; color: var(--muted-soft); font-weight: 600; }

/* ===== STATS ===== */
.stats {
  max-width: 1180px; margin: 0 auto; padding: 56px 24px;
  display: flex; justify-content: space-around; text-align: center; gap: 16px; flex-wrap: wrap;
}
.stat-num {
  font: 800 40px 'Plus Jakarta Sans', sans-serif;
  background: linear-gradient(135deg, var(--accent2), var(--pink));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat-lbl { font-size: 13px; color: var(--muted-soft); margin-top: 6px; }

/* ===== CTA FINAL ===== */
.cta-final { max-width: 1180px; margin: 0 auto; padding: 0 24px 56px; }
.cta-box {
  padding: 48px 24px; border-radius: 28px; text-align: center;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
}
.cta-box h2 { color: var(--bg); font-size: 30px; font-weight: 800; margin-bottom: 14px; }
.cta-box p { color: rgba(13, 13, 21, .7); font-size: 15px; font-weight: 500; margin-bottom: 26px; }

/* ===== FOOTER ===== */
.footer {
  max-width: 1180px; margin: 0 auto; padding: 24px;
  border-top: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px;
}
.brand-small { font: 700 14px 'Plus Jakarta Sans', sans-serif; }
.footer-copy { font-size: 12.5px; color: var(--muted-soft); }

/* ===================== RESPONSIVE ===================== */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .brain-stage { width: 400px; height: 400px; }
  .hero-copy h1 { font-size: 38px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .how-grid { grid-template-columns: repeat(2, 1fr); }
  .demo-row { grid-template-columns: 1fr; margin-top: 48px; padding-top: 40px; }
  .demo-visual { order: -1; }
  .demo-copy { text-align: center; }
  .demo-dots { justify-content: center; }
}

@media (max-width: 560px) {
  .hero { padding: 40px 18px 56px; }
  .hero-copy h1 { font-size: 32px; }
  .hero-copy .lead { font-size: 15.5px; }
  .problem-solution { grid-template-columns: 1fr; padding: 32px 18px; }
  .features, .cta-final, .stats { padding-left: 18px; padding-right: 18px; }
  .feature-grid { grid-template-columns: 1fr; }
  .how { padding: 40px 18px; }
  .how-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
  .stats { gap: 24px; }
  .stat-num { font-size: 32px; }
  .cta-box { padding: 36px 20px; }
  .cta-box h2 { font-size: 24px; }
  .brain-stage { width: 320px; height: 300px; }
  .demo-phone { width: 220px; height: 400px; }
  .demo-caption { font-size: 16px; min-height: 0; }
  .demo-word { font-size: 24px; }
}

/* ===== SAHIFA OXIRIDAGI XABAR (bottom alert) ===== */
.bottom-alert-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(5, 5, 8, .7); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center; padding: 24px;
  opacity: 0; pointer-events: none; transition: opacity .3s ease;
}
.bottom-alert-overlay.show { opacity: 1; pointer-events: auto; }
.bottom-alert-box {
  position: relative; max-width: 420px; width: 100%; text-align: center;
  background: linear-gradient(160deg, #1c1c2a, #15151f);
  border: 1px solid rgba(255, 255, 255, .1); border-radius: 26px;
  padding: 44px 32px 36px;
  box-shadow: 0 30px 70px -20px rgba(0, 0, 0, .6);
  transform: scale(.85) translateY(20px); transition: transform .35s cubic-bezier(.34, 1.56, .64, 1);
}
.bottom-alert-overlay.show .bottom-alert-box { transform: scale(1) translateY(0); }
.bottom-alert-close {
  position: absolute; top: 16px; right: 16px; width: 32px; height: 32px;
  border-radius: 10px; border: none; background: var(--surface); color: var(--text);
  font-size: 14px; cursor: pointer;
}
.bottom-alert-icon { font-size: 42px; margin-bottom: 16px; }
.bottom-alert-box h3 {
  font: 800 22px/1.4 'Plus Jakarta Sans', sans-serif; margin-bottom: 26px;
}

@media (max-width: 560px) {
  .bottom-alert-box { padding: 36px 22px 28px; }
  .bottom-alert-box h3 { font-size: 19px; }
}

@media (prefers-reduced-motion: reduce) {
  .demo-card { transition: none; }
  .bottom-alert-box { transition: none; }
}