:root {
  color-scheme: dark;
  --bg: #0b0d12;
  --bg-soft: #121520;
  --ink: #f5f7fb;
  --muted: #9aa3b2;
  --accent: #24d18b;
  --accent-dark: #0f8f5b;
  --accent-soft: rgba(36, 209, 139, 0.18);
  --card: #12151f;
  --border: rgba(255, 255, 255, 0.08);
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.55);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "DM Sans", system-ui, sans-serif;
}

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

body {
  font-family: var(--font-body);
  background: radial-gradient(circle at top, #111425 0%, var(--bg) 55%);
  color: var(--ink);
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

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

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

button {
  font-family: inherit;
}

.container {
  width: min(1100px, 92vw);
  margin: 0 auto;
}

.bg-orb {
  position: absolute;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  filter: blur(0px);
  opacity: 0.4;
  z-index: -2;
}

.orb-a {
  top: -160px;
  left: -120px;
  background: radial-gradient(circle at 30% 30%, rgba(36, 209, 139, 0.4), transparent 70%);
  animation: float 8s ease-in-out infinite;
}

.orb-b {
  bottom: -200px;
  right: -120px;
  background: radial-gradient(circle at 60% 40%, rgba(72, 129, 255, 0.35), transparent 70%);
  animation: float 9s ease-in-out infinite reverse;
}

.bg-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
      transparent 0,
      transparent 28px,
      rgba(255, 255, 255, 0.04) 28px,
      rgba(255, 255, 255, 0.04) 29px
    ),
    linear-gradient(
      90deg,
      transparent 0,
      transparent 28px,
      rgba(255, 255, 255, 0.04) 28px,
      rgba(255, 255, 255, 0.04) 29px
    );
  background-size: 29px 29px;
  opacity: 0.35;
  z-index: -3;
}

.bg-stars {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(#ffffff66 1px, transparent 1px),
    radial-gradient(#ffffff33 1px, transparent 1px);
  background-size: 120px 120px, 180px 180px;
  background-position: 0 0, 60px 80px;
  opacity: 0.25;
  z-index: -4;
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(12px);
  background: rgba(11, 13, 18, 0.85);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  z-index: 10;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 700;
}

.brand-mark {
  background: #fff;
  color: #0b0d12;
  padding: 6px 10px;
  border-radius: 12px;
  letter-spacing: 1px;
  font-size: 0.85rem;
}

.brand-name {
  font-size: 1.2rem;
}

.nav-links {
  display: flex;
  gap: 20px;
  font-size: 0.95rem;
  color: var(--muted);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(20, 17, 15, 0.12);
}

.btn-primary {
  background: linear-gradient(135deg, #2af598, #1fbf76);
  color: #fff;
  box-shadow: 0 12px 30px rgba(36, 209, 139, 0.25);
}

.btn-outline {
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.02);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: rgba(255, 255, 255, 0.2);
}

.hero {
  padding: 140px 0 120px;
}

.hero-shell {
  display: grid;
  gap: 44px;
  max-width: 920px;
  margin: 0 auto;
  justify-items: center;
}

.hero-title {
  text-align: center;
}

.hero-title h1 {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 4vw, 3.6rem);
  line-height: 1.05;
  margin: 16px 0;
}

.hero-title p {
  color: var(--muted);
  font-size: 1.05rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--muted);
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.85rem;
}

.hero-panel {
  background: rgba(18, 21, 31, 0.92);
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 30px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  width: min(720px, 100%);
}

.panel-title h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-bottom: 6px;
}

.panel-title p {
  color: var(--muted);
  font-size: 0.95rem;
}

.channel-picker {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin: 22px 0 18px;
}

.channel-option {
  border-radius: 16px;
  background: rgba(15, 18, 26, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  text-align: left;
  color: inherit;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.channel-option:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.2);
}

.channel-option.is-active {
  border-color: rgba(36, 209, 139, 0.7);
  box-shadow: 0 0 0 1px rgba(36, 209, 139, 0.3);
}

.channel-logo {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-family: var(--font-display);
  color: #fff;
}

.channel-logo.telegram {
  background: #2aabee;
}

.channel-logo.whatsapp {
  background: #25d366;
}

.channel-text strong {
  display: block;
  font-size: 0.95rem;
}

.channel-text small {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
}

.btn-login {
  width: 100%;
  justify-content: center;
  font-size: 1rem;
}

.panel-note {
  margin-top: 10px;
  font-size: 0.85rem;
  color: var(--muted);
  text-align: center;
}


.section-head {
  text-align: center;
  margin-bottom: 32px;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3vw, 2.6rem);
  margin-bottom: 10px;
}

.section-head p {
  color: var(--muted);
  font-size: 1rem;
}

.usecases,
.cta {
  padding: 80px 0;
}

.usecase-marquee {
  margin: 26px 0 28px;
  display: grid;
  gap: 14px;
  position: relative;
  border-radius: 28px;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(
    180deg,
    transparent 0%,
    #000 12%,
    #000 88%,
    transparent 100%
  );
  mask-image: linear-gradient(
    180deg,
    transparent 0%,
    #000 12%,
    #000 88%,
    transparent 100%
  );
}

.usecase-marquee::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  box-shadow: inset 0 0 45px rgba(11, 13, 18, 0.8);
}

.usecase-row {
  position: relative;
  overflow: hidden;
  padding: 6px 0;
  contain: layout paint;
  -webkit-mask-image: linear-gradient(
    90deg,
    transparent 0%,
    #000 10%,
    #000 90%,
    transparent 100%
  );
  mask-image: linear-gradient(
    90deg,
    transparent 0%,
    #000 10%,
    #000 90%,
    transparent 100%
  );
}

.usecase-row::before,
.usecase-row::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 80px;
  z-index: 2;
  pointer-events: none;
  filter: blur(6px);
  opacity: 0.45;
}

.usecase-row::before {
  left: 0;
  background: linear-gradient(to right, rgba(11, 13, 18, 0.95), rgba(11, 13, 18, 0));
}

.usecase-row::after {
  right: 0;
  background: linear-gradient(to left, rgba(11, 13, 18, 0.95), rgba(11, 13, 18, 0));
}

.usecase-track {
  display: inline-flex;
  gap: 12px;
  width: max-content;
  animation: marquee var(--duration, 34s) linear infinite;
  will-change: transform;
  transform: translate3d(0, 0, 0);
  pointer-events: none;
}

.usecase-row:hover .usecase-track {
  animation-play-state: paused;
}

.row-right .usecase-track {
  animation-direction: reverse;
}

.usecase-set {
  display: inline-flex;
  gap: 12px;
  padding-right: 12px;
}

.usecase-chip {
  background: rgba(15, 18, 26, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--ink);
  padding: 10px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02);
  pointer-events: none;
}

.chip-icon {
  width: 18px;
  height: 18px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.04);
  display: inline-block;
}

.usecase-note {
  margin-top: 20px;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  font-style: italic;
}

.cta-box {
  background: var(--card);
  border-radius: var(--radius-xl);
  padding: 36px;
  border: 1px solid var(--border);
  display: grid;
  gap: 24px;
  box-shadow: var(--shadow);
}

.cta-form {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) auto;
  gap: 12px;
}

.cta-form input {
  padding: 14px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-size: 1rem;
  font-family: var(--font-body);
  background: rgba(15, 18, 26, 0.9);
  color: var(--ink);
}

.cta-form input::placeholder {
  color: rgba(245, 247, 251, 0.6);
}

.cta-note {
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer {
  padding: 50px 0 60px;
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  color: var(--muted);
}

.footer-links {
  display: grid;
  gap: 8px;
}

.reveal {
  opacity: 1;
  transform: none;
}

@keyframes float {
  0% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(0, 20px, 0);
  }
  100% {
    transform: translate3d(0, 0, 0);
  }
}

@keyframes marquee {
  0% {
    transform: translate3d(0, 0, 0);
  }
  100% {
    transform: translate3d(-50%, 0, 0);
  }
}

@media (max-width: 900px) {
  .nav-links {
    display: none;
  }

  .hero {
    padding-top: 70px;
  }

  .cta-form {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .btn {
    width: 100%;
  }

  .chat-card {
    border-radius: var(--radius-lg);
  }
}

@media (max-width: 700px) {
  .usecase-row::before,
  .usecase-row::after {
    width: 60px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .usecase-track {
    animation: none;
  }
}