:root {
  color-scheme: light dark;
  --ink: #0f1b2d;
  --muted: #5b6b80;
  --line: rgba(15, 27, 45, 0.1);
  --panel: rgba(255, 255, 255, 0.78);
  --panel-solid: #ffffff;
  --bg0: #e8eef8;
  --bg1: #eef4ff;
  --blue: #2563eb;
  --blue-deep: #1d4ed8;
  --sky: #38bdf8;
  --bubble-in: #f3f6fb;
  --bubble-out: #2563eb;
  --out-text: #fff;
  --shadow: 0 28px 60px rgba(15, 27, 45, 0.12);
  --font-display: "Outfit", sans-serif;
  --font-body: "Manrope", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e8eef8;
    --muted: #9aa8bc;
    --line: rgba(232, 238, 248, 0.1);
    --panel: rgba(16, 24, 40, 0.72);
    --panel-solid: #121a2b;
    --bg0: #0b1220;
    --bg1: #101a2e;
    --bubble-in: #1a2538;
    --bubble-out: #2563eb;
    --out-text: #fff;
    --shadow: 0 28px 60px rgba(0, 0, 0, 0.35);
  }
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--bg0);
  line-height: 1.55;
}

h1, h2, h3, .brand strong, .eyebrow, .pill {
  font-family: var(--font-display);
}

a { color: inherit; }

.bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(900px 480px at 12% -8%, rgba(56, 189, 248, 0.28), transparent 60%),
    radial-gradient(700px 420px at 92% 8%, rgba(37, 99, 235, 0.2), transparent 55%),
    linear-gradient(165deg, var(--bg1) 0%, var(--bg0) 55%, var(--bg0) 100%);
}

@media (prefers-color-scheme: dark) {
  .bg {
    background:
      radial-gradient(800px 420px at 10% -10%, rgba(37, 99, 235, 0.28), transparent 55%),
      radial-gradient(640px 380px at 100% 0%, rgba(14, 165, 233, 0.16), transparent 50%),
      linear-gradient(165deg, #0e1728 0%, #0b1220 50%, #0a101c 100%);
  }
}

.bg::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.28;
  background-image:
    linear-gradient(rgba(15, 27, 45, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 27, 45, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at 50% 28%, #000 18%, transparent 72%);
}

@media (prefers-color-scheme: dark) {
  .bg::after {
    background-image:
      linear-gradient(rgba(232, 238, 248, 0.05) 1px, transparent 1px),
      linear-gradient(90deg, rgba(232, 238, 248, 0.05) 1px, transparent 1px);
  }
}

.top {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  padding: 0.9rem 6vw;
  backdrop-filter: blur(16px);
  background: color-mix(in srgb, var(--bg0) 72%, transparent);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
}

.brand img { border-radius: 10px; }

.brand strong {
  display: block;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.brand small {
  color: var(--muted);
  font-size: 0.78rem;
}

.top nav {
  margin-left: auto;
  display: flex;
  gap: 1.1rem;
  font-size: 0.92rem;
  color: var(--muted);
}

.top nav a { text-decoration: none; }
.top nav a:hover { color: var(--ink); }

.pill {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--blue) 14%, transparent);
  color: var(--blue-deep);
  border: 1px solid color-mix(in srgb, var(--blue) 28%, transparent);
}

@media (prefers-color-scheme: dark) {
  .pill { color: #93c5fd; }
}

.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3.5rem;
  align-items: center;
  padding: 4.5rem 6vw 3rem;
  max-width: 1180px;
  margin: 0 auto;
}

.eyebrow {
  margin: 0 0 0.7rem;
  color: var(--blue);
  font-weight: 600;
  letter-spacing: 0.02em;
}

h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.1rem, 4.4vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.lead {
  margin: 0 0 1.6rem;
  color: var(--muted);
  font-size: 1.08rem;
  max-width: 36rem;
}

.cta { display: flex; flex-wrap: wrap; gap: 0.7rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.2rem;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 700;
  font-family: var(--font-display);
}

.btn-primary {
  background: linear-gradient(135deg, var(--blue), #0ea5e9);
  color: #fff;
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.28);
}

.btn-ghost {
  border: 1px solid var(--line);
  background: var(--panel);
}

.facts {
  margin: 1.6rem 0 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 0.92rem;
  display: grid;
  gap: 0.35rem;
}

.phone-shell {
  background: var(--panel-solid);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  overflow: hidden;
  max-width: 380px;
  margin-left: auto;
}

.phone-bar, .composer {
  display: flex;
  align-items: center;
  padding: 0.95rem 1rem;
  border-bottom: 1px solid var(--line);
}

.composer {
  border-bottom: 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

.chat-head { display: flex; align-items: center; gap: 0.7rem; }

.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--blue), var(--sky));
  color: #fff;
  font-weight: 700;
}

.chat-head b { display: block; font-size: 0.92rem; }
.chat-head small { color: var(--muted); font-size: 0.75rem; }

.lock {
  margin-left: auto;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--blue);
  border: 1px solid color-mix(in srgb, var(--blue) 35%, transparent);
  border-radius: 999px;
  padding: 0.2rem 0.5rem;
}

.thread {
  padding: 1rem 0.9rem 1.1rem;
  display: grid;
  gap: 0.55rem;
  min-height: 290px;
  background:
    radial-gradient(280px 120px at 80% 0%, color-mix(in srgb, var(--sky) 16%, transparent), transparent);
}

.bubble {
  max-width: 86%;
  padding: 0.7rem 0.85rem;
  border-radius: 16px;
  font-size: 0.9rem;
}

.bubble.in {
  background: var(--bubble-in);
  border-bottom-left-radius: 6px;
}

.bubble.out {
  margin-left: auto;
  background: var(--bubble-out);
  color: var(--out-text);
  border-bottom-right-radius: 6px;
}

.voice, .media {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.play {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--blue);
  position: relative;
  flex: none;
}

.play::after {
  content: "";
  position: absolute;
  left: 11px;
  top: 8px;
  border-style: solid;
  border-width: 6px 0 6px 9px;
  border-color: transparent transparent transparent #fff;
}

.wave {
  flex: 1;
  height: 18px;
  background: repeating-linear-gradient(
    90deg,
    var(--blue) 0 3px,
    transparent 3px 6px
  );
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  opacity: 0.7;
}

.voice em { font-style: normal; color: var(--muted); font-size: 0.78rem; }

.thumb {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background:
    linear-gradient(135deg, rgba(255,255,255,0.35), transparent),
    linear-gradient(160deg, #7dd3fc, #2563eb 60%, #1e3a8a);
  flex: none;
}

.call {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  justify-content: center;
  font-size: 0.8rem;
  color: var(--muted);
  padding: 0.35rem;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.18);
}

.block {
  padding: 1.5rem 6vw 4rem;
  max-width: 1180px;
  margin: 0 auto;
}

h2 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.6rem, 2.6vw, 2.2rem);
  letter-spacing: -0.03em;
}

.sub { margin: 0 0 1.6rem; color: var(--muted); max-width: 40rem; }

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.9rem;
}

.grid article {
  padding: 1.15rem 1.15rem 1.2rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  backdrop-filter: blur(10px);
}

.grid h3 { margin: 0 0 0.4rem; font-size: 1.05rem; }
.grid p { margin: 0; color: var(--muted); font-size: 0.95rem; }

.split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 1.5rem;
  align-items: start;
}

.checks {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.55rem;
}

.checks li {
  padding-left: 1.5rem;
  position: relative;
}

.checks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45rem;
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--sky));
}

.card {
  background: var(--panel-solid);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 1.4rem 1.4rem 1.5rem;
  box-shadow: var(--shadow);
}

.card-kicker {
  margin: 0 0 0.5rem;
  color: var(--blue);
  font-weight: 700;
  font-family: var(--font-display);
}

.card p:last-child { margin: 0; color: var(--muted); }

.platforms {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.platforms span {
  padding: 0.7rem 1rem;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--panel);
  font-weight: 600;
}

.soon { color: var(--muted); margin: 1rem 0 0; }

footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: end;
  padding: 1.6rem 6vw 2.2rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

footer strong { color: var(--ink); }
footer p { margin: 0.2rem 0 0; }
footer a { color: var(--blue); text-decoration: none; }

@media (max-width: 900px) {
  .hero, .split, .grid { grid-template-columns: 1fr; }
  .top nav { display: none; }
  .phone-shell { margin: 0 auto; }
}