:root {
  --bg: #0b0f14;
  --surface: rgba(255, 255, 255, 0.06);
  --surface-2: rgba(255, 255, 255, 0.10);
  --border: rgba(255, 255, 255, 0.12);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.72);
  --muted-2: rgba(255, 255, 255, 0.56);

  --brand: #30c67c;
  --brand-2: #38bdf8;
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.55);

  --radius: 16px;
  --radius-lg: 24px;

  --max: 1120px;
  --pad: 24px;

  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto,
    Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f6f7fb;
    --surface: rgba(0, 0, 0, 0.04);
    --surface-2: rgba(0, 0, 0, 0.06);
    --border: rgba(0, 0, 0, 0.10);
    --text: rgba(0, 0, 0, 0.90);
    --muted: rgba(0, 0, 0, 0.70);
    --muted-2: rgba(0, 0, 0, 0.55);
    --shadow: 0 18px 60px rgba(0, 0, 0, 0.12);
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}

.bg-glow {
  position: fixed;
  inset: -20%;
  z-index: -1;
  background:
    radial-gradient(900px 500px at 20% 20%, rgba(48, 198, 124, 0.28), transparent 60%),
    radial-gradient(700px 500px at 80% 25%, rgba(56, 189, 248, 0.22), transparent 60%),
    radial-gradient(900px 650px at 50% 85%, rgba(48, 198, 124, 0.16), transparent 60%);
  filter: blur(18px);
  transform: translateZ(0);
  pointer-events: none;
}

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

a:focus-visible, button:focus-visible {
  outline: 3px solid rgba(56, 189, 248, 0.8);
  outline-offset: 3px;
  border-radius: 12px;
}

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad);
}

/* NAVBAR */

header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;

  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  height: 72px;
  flex-wrap: nowrap; /* never wrap */
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  flex: 1 1 auto;
}

.brand img {
  width: 36px;
  height: 36px;
  flex: 0 0 auto;
}

.brand .name {
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 20px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-right {
  display: flex;
  align-items: center; /* vertically center */
  gap: 10px;
  flex: 0 0 auto;
  white-space: nowrap;
}

.nav-link {
  color: var(--muted);
  font-weight: 700;
  font-size: 14px;
  padding: 10px 10px;
  border-radius: 10px;
  flex: 0 0 auto;
}

.nav-link:hover {
  background: var(--surface);
  color: var(--text);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 2px solid var(--border);
  background: var(--surface);
  font-weight: 800;
  font-size: 14px;
  cursor: pointer;
  transition: transform 0.08s ease, background 0.12s ease, border-color 0.12s ease;
  flex: 0 0 auto;
}

.btn:hover {
  background: var(--surface-2);
  border-color: color-mix(in srgb, var(--border) 40%, var(--brand) 60%);
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: linear-gradient(
    135deg,
    rgba(48, 198, 124, 0.92),
    rgba(56, 189, 248, 0.72)
  );
  border-color: rgba(255, 255, 255, 0.18);
  color: rgba(0, 0, 0, 0.92);
}

.x-icon { width: 16px; height: 16px; display: inline-block; }

main {
  padding: 116px 0 64px; /* 72px header + breathing room */
}

.hero {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 32px;
  align-items: center;
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 75%, transparent);
  box-shadow: var(--shadow);
}

.hero-copy { order: 1; }
.hero-media { order: 2; }

h1 {
  margin: 14px 0 10px;
  font-size: clamp(34px, 4vw, 54px);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.lead {
  margin: 0 0 18px;
  font-size: 17px;
  line-height: 1.55;
  color: var(--muted);
  max-width: 52ch;
}

.cta-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
  margin-top: 12px;
}

.appstore-badge {
  display: inline-block;
  transition: transform 0.08s ease, opacity 0.12s ease;
}

.appstore-badge img {
  height: 52px; /* adjust size here */
  width: auto;
  display: block;
}

.appstore-badge:hover {
  opacity: 0.85;
}

.appstore-badge:active {
  transform: translateY(1px);
}

.fineprint {
  margin-top: 10px;
  color: var(--muted-2);
  font-size: 13px;
}

/* CAROUSEL */
.carousel {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.06),
    rgba(255, 255, 255, 0.02)
  );
}

.carousel::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    600px 280px at 20% 0%,
    rgba(255, 255, 255, 0.18),
    transparent 55%
  );
  pointer-events: none;
  z-index: 2;
}

.carousel img {
  width: 100%;
  height: auto;
  display: block;
}

.carousel .slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 420ms ease;
  will-change: opacity;
}

.carousel .slide.is-active {
  opacity: 1;
  position: relative;
}

/* FEATURES */
.features {
  margin-top: 26px;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(4, minmax(0, 1fr)); /* desktop: 4 */
}

.card {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--radius);
  padding: 16px;
  min-height: 140px;

  /* robust internal layout (prevents any odd flow issues) */
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
}

.card-icon {
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  font-size: 40px;  /* controls emoji size */
  line-height: 1;
}

.card-title {
  font-weight: 900;
  letter-spacing: -0.01em;
  margin: 0;
}

.card-body { }

.card-sub {
  color: var(--muted);
  line-height: 1.6;
  margin: 0;
  padding-bottom: 6px; /* breathing room from bottom edge */
}

/* CARD HOVER */

.card {
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.25);
}

.card-icon {
  transition: transform 0.25s ease;
}

.card:hover .card-icon {
  transform: scale(1.1);
}

.card:hover {
  background: color-mix(in srgb, var(--surface) 60%, var(--brand) 6%);
}

/* CTA SECTION */

.cta-section {
  margin-top: 60px;
  margin-bottom: 0;
  display: flex;
  justify-content: center;
}

.cta-box {
  text-align: center;
  padding: 40px 32px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 75%, transparent);
  box-shadow: var(--shadow);
  max-width: 720px;
  width: 100%;
}

.cta-box h2 {
  font-size: clamp(26px, 3vw, 36px);
  letter-spacing: -0.03em;
  margin: 0 0 12px;
}

.cta-box p {
  color: var(--muted);
  font-size: 18px;
  margin: 0 0 24px;
}

.cta-actions {
  display: flex;
  justify-content: center;
}

/* PRIVACY PAGE */
.page {
  max-width: 820px;
  margin: 0 auto;
}

.page h1 {
  font-size: clamp(30px, 4vw, 44px);
  margin-bottom: 10px;
}

.page h2 {
  margin-top: 32px;
  font-size: 20px;
  letter-spacing: -0.01em;
}

.page p {
  color: var(--muted);
  margin: 12px 0;
}

.page ul {
  padding-left: 18px;
  color: var(--muted);
}

.page li { margin: 6px 0; }

/* FOOTER */
footer {
  padding: 28px 0 44px;
  color: var(--muted-2);
  font-size: 13px;
}

.footer-row {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.footer-links { display: flex; gap: 12px; flex-wrap: wrap; }

/* Responsive */
@media (max-width: 920px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 22px;
  }
  .hero-copy { order: 1; }
  .hero-media { order: 2; } /* carousel below text */
}

@media (max-width: 720px) {
  .features { grid-template-columns: repeat(2, minmax(0, 1fr)); } /* mobile: 2 */

  .card-head {
    flex-direction: column; /* icon on top */
    align-items: flex-start;
    gap: 10px;
  }

  .card-icon { width: 44px; height: 44px; }

  .nav { gap: 10px; }
  .nav-link { padding: 8px 8px; font-size: 13px; }
  .btn { padding: 9px 12px; font-size: 13px; gap: 8px; }
}

@media (max-width: 460px) {
  .brand .name { max-width: 120px; }
  .nav-link { padding: 8px 6px; }
  .btn span { display: none; } /* hide "Follow" label, keep X icon */
  .btn { padding: 9px 10px; }
}