:root {
  --bg: #fbfbfd;
  --surface: rgba(255, 255, 255, 0.7);
  --surface-solid: #ffffff;
  --ink: #1d1d1f;
  --ink-soft: #424248;
  --muted: #6e6e76;
  --rule: rgba(0, 0, 0, 0.08);
  --accent: #5b5bf0;
  --accent-2: #06b6d4;
  --accent-ink: #ffffff;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04), 0 4px 12px -6px rgba(20, 20, 50, 0.12);
  --shadow: 0 12px 40px -16px rgba(20, 20, 60, 0.22);
  --shadow-lg: 0 28px 70px -24px rgba(20, 20, 60, 0.32);
  --radius: 22px;
  --radius-sm: 14px;
  --maxw: 72rem;
  --pad: clamp(1.25rem, 4vw, 3rem);
  --font: "SF Pro Text", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  --font-display: "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  letter-spacing: -0.003em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Decorative gradient backdrop */
.backdrop {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(70rem 46rem at 8% -12%, rgba(91, 91, 240, 0.16), transparent 60%),
    radial-gradient(58rem 40rem at 104% -4%, rgba(6, 182, 212, 0.14), transparent 56%),
    radial-gradient(60rem 60rem at 50% 128%, rgba(99, 102, 241, 0.08), transparent 62%);
}

a { color: var(--accent); text-decoration: none; }
a:hover, a:focus-visible { text-decoration: underline; }

h1, h2, h3 { font-family: var(--font-display); }

/* ---------- Nav ---------- */
.nav {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 1.6rem var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink);
  font-weight: 600;
  letter-spacing: -0.01em;
}
.brand:hover { text-decoration: none; }

.brand-mark {
  display: block;
  width: 2rem;
  height: 2rem;
  filter: drop-shadow(0 2px 4px rgba(20, 20, 60, 0.18));
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  font-size: 0.95rem;
  font-weight: 500;
}
.nav-links a { color: var(--muted); }
.nav-links a:hover,
.nav-links a[aria-current="page"] { color: var(--ink); text-decoration: none; }

/* ---------- Main ---------- */
main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad) 5rem;
}

/* ---------- Hero ---------- */
.hero {
  padding: clamp(3rem, 8vw, 5.5rem) 0 clamp(2.5rem, 6vw, 4rem);
  text-align: center;
}
.hero-compact { padding: clamp(2.25rem, 6vw, 4rem) 0 2rem; }

.eyebrow,
.section-eyebrow {
  margin: 0 0 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--accent);
}

.hero h1 {
  margin: 0 auto 1.5rem;
  max-width: 18ch;
  font-size: clamp(2.6rem, 6.2vw, 4.4rem);
  line-height: 1.04;
  letter-spacing: -0.035em;
  font-weight: 700;
}
.grad {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lede {
  max-width: 40rem;
  margin: 0 auto;
  font-size: clamp(1.1rem, 2.2vw, 1.32rem);
  line-height: 1.55;
  color: var(--ink-soft);
}

.hero-actions {
  display: flex;
  gap: 0.8rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 2.2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.78rem 1.6rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  transition: transform 0.15s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--accent-ink);
  box-shadow: var(--shadow);
}
.btn-primary:hover { opacity: 0.94; }
.btn-ghost {
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--rule);
  backdrop-filter: blur(10px);
}

.platforms {
  display: flex;
  gap: 1.6rem;
  justify-content: center;
  list-style: none;
  margin: 2.4rem 0 0;
  padding: 0;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 500;
}
.platforms li { display: inline-flex; align-items: center; gap: 0.45rem; }
.platforms span { font-size: 1.05rem; line-height: 1; }

/* ---------- Sections ---------- */
.section {
  padding: clamp(2.5rem, 6vw, 3.5rem) 0;
  border-top: 1px solid var(--rule);
}
.section-title {
  margin: 0 0 1rem;
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  line-height: 1.1;
  letter-spacing: -0.025em;
  font-weight: 700;
}
.section-intro {
  margin: 0 0 2.4rem;
  font-size: 1.12rem;
  color: var(--ink-soft);
}

/* ---------- Cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 1.3rem;
}
.card {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(12px);
  transition: transform 0.2s ease, box-shadow 0.25s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card-icon {
  display: grid;
  place-items: center;
  width: 2.9rem;
  height: 2.9rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.1rem;
  font-size: 1.3rem;
  color: var(--accent);
  background: linear-gradient(135deg, rgba(91, 91, 240, 0.12), rgba(6, 182, 212, 0.12));
}
.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.22rem;
  letter-spacing: -0.015em;
  font-weight: 600;
}
.card p { margin: 0; color: var(--muted); }

.personal-note {
  margin: 2.6rem 0 0;
  padding-left: 1.2rem;
  border-left: 3px solid var(--accent);
  font-size: 1.18rem;
  font-style: italic;
  line-height: 1.55;
  color: var(--ink-soft);
}

/* ---------- Apps panel ---------- */
.apps-panel {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 1.8rem;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(12px);
}
.app-row { display: flex; gap: 1.2rem; align-items: center; }
.app-icon {
  flex: none;
  display: grid;
  place-items: center;
  width: 3.6rem;
  height: 3.6rem;
  border-radius: var(--radius-sm);
  font-size: 1.6rem;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: var(--shadow-sm);
}
.app-meta h3 {
  margin: 0 0 0.3rem;
  font-size: 1.15rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}
.app-meta p { margin: 0; color: var(--muted); }

.badge {
  display: inline-block;
  padding: 0.18rem 0.65rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--accent-2);
  background: rgba(6, 182, 212, 0.12);
}

/* ---------- Support band ---------- */
.band {
  margin-top: 1rem;
  padding: 3.2rem;
  background: linear-gradient(135deg, rgba(91, 91, 240, 0.07), rgba(6, 182, 212, 0.07));
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  scroll-margin-top: 1.5rem;
}
.band .section-intro { margin-bottom: 1.8rem; }

/* ---------- Contact form ---------- */
.form-wrap { max-width: 38rem; margin: 0 auto; }
.form {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(12px);
}
.field { margin-bottom: 1.1rem; }
.field label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--ink-soft);
}
.field input,
.field textarea {
  width: 100%;
  padding: 0.7rem 0.85rem;
  font: inherit;
  color: var(--ink);
  background: var(--surface-solid);
  border: 1px solid var(--rule);
  border-radius: 12px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.field textarea { resize: vertical; min-height: 7rem; }
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(91, 91, 240, 0.18);
}
.form .btn { margin-top: 0.3rem; border: none; cursor: pointer; font: inherit; font-weight: 600; }

/* Honeypot: hidden from humans, tempting to bots */
.hp { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; }

.form-result { margin: 0.9rem 0 0; font-size: 0.95rem; min-height: 1.2em; }
.form-result.is-success { color: #0a7d4d; }
.form-result.is-error { color: #c0392b; }

.form-note { margin: 1rem 0 0; font-size: 0.9rem; color: var(--muted); }

/* ---------- Privacy prose ---------- */
.updated { margin: 0; color: var(--muted); font-size: 0.95rem; }
.prose {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 2.8rem;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(12px);
}
.prose h2 {
  margin: 2rem 0 0.5rem;
  font-size: 1.25rem;
  letter-spacing: -0.015em;
  font-weight: 600;
}
.prose h2:first-child { margin-top: 0; }
.prose p { margin: 0 0 0.75rem; color: var(--ink-soft); }
.prose p:last-child { margin-bottom: 0; }
.prose ul {
  margin: 0 0 0.75rem;
  padding-left: 1.3rem;
  color: var(--ink-soft);
}
.prose li { margin: 0.3rem 0; }
.back-link { margin-top: 1.8rem; }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--rule);
  background: rgba(255, 255, 255, 0.4);
}
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 2.6rem var(--pad) 3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
}
.footer-links {
  display: flex;
  gap: 1.4rem;
  justify-content: center;
  flex-wrap: wrap;
  font-size: 0.95rem;
}
.footer-links a { color: var(--muted); }
.copyright { margin: 0; color: var(--muted); font-size: 0.88rem; }

/* ---------- Dark mode ---------- */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0b0f;
    --surface: rgba(28, 28, 36, 0.6);
    --surface-solid: #17171d;
    --ink: #f5f5f7;
    --ink-soft: #c7c7cf;
    --muted: #93939e;
    --rule: rgba(255, 255, 255, 0.1);
    --accent: #7c7cff;
    --accent-2: #2ad4ee;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px -10px rgba(0, 0, 0, 0.5);
    --shadow: 0 16px 48px -18px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 32px 80px -26px rgba(0, 0, 0, 0.7);
  }
  .backdrop {
    background:
      radial-gradient(70rem 46rem at 8% -12%, rgba(124, 124, 255, 0.2), transparent 60%),
      radial-gradient(58rem 40rem at 104% -4%, rgba(42, 212, 238, 0.14), transparent 56%),
      radial-gradient(60rem 60rem at 50% 128%, rgba(99, 102, 241, 0.1), transparent 62%);
  }
  .footer { background: rgba(255, 255, 255, 0.02); }
  .card-icon {
    background: linear-gradient(135deg, rgba(124, 124, 255, 0.16), rgba(42, 212, 238, 0.16));
  }
  .band {
    background: linear-gradient(135deg, rgba(124, 124, 255, 0.1), rgba(42, 212, 238, 0.08));
  }
  .badge { background: rgba(42, 212, 238, 0.16); }
}

/* ---------- Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .card { transition: none; }
}

/* ---------- Responsive ---------- */
/* Wider canvas on very large displays */
@media (min-width: 100rem) {
  :root { --maxw: 84rem; }
}

/* Tablets and large phones */
@media (max-width: 48rem) {
  .cards { gap: 1rem; }
  .band { padding: 2rem; }
}

/* Phones */
@media (max-width: 34rem) {
  .nav { justify-content: center; gap: 0.75rem; }
  .nav-links { gap: 1.1rem; }
  .band, .prose { padding: 1.6rem; }
  .platforms { gap: 1.1rem; flex-wrap: wrap; }
  .hero-actions { width: 100%; }
  .hero-actions .btn { flex: 1 1 auto; justify-content: center; }
  .form { padding: 1.5rem; }
  .form .btn { width: 100%; justify-content: center; }
  .app-row { flex-direction: column; text-align: center; }
  .app-meta h3 { justify-content: center; }
}