:root {
  color-scheme: dark;
  --bg: #06080d;
  --bg-alt: #0b0f17;
  --surface: rgba(255, 255, 255, 0.035);
  --surface-strong: rgba(255, 255, 255, 0.06);
  --text: #e8edf5;
  --muted: #8f9bb0;
  --accent: #22d3ee;
  --accent-2: #7c5cff;
  --accent-dark: #67e8f9;
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);
  --glow: 0 0 0 1px rgba(34, 211, 238, 0.35), 0 12px 48px rgba(34, 211, 238, 0.18);
  --gradient: linear-gradient(120deg, #22d3ee 0%, #5b8cff 50%, #a78bfa 100%);
  --radius: 16px;
  --max: 1120px;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

::selection { background: rgba(34, 211, 238, 0.35); color: #fff; }

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-dark); text-decoration: underline; text-underline-offset: 3px; }
a:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}
.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--border);
  background: rgba(6, 8, 13, 0.72);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  backdrop-filter: saturate(160%) blur(14px);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 14px;
  padding-bottom: 14px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  letter-spacing: -0.01em;
}
.brand::before {
  content: "";
  width: 22px;
  height: 22px;
  border-radius: 7px;
  background: var(--gradient);
  box-shadow: 0 0 18px rgba(34, 211, 238, 0.45);
}
.brand:hover { text-decoration: none; color: var(--text); }
.nav { display: flex; gap: 6px; flex-wrap: wrap; }
.nav a {
  color: var(--muted);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 6px 12px;
  border-radius: 999px;
  transition: color 0.15s, background 0.15s;
}
.nav a:hover { color: var(--text); background: var(--surface-strong); text-decoration: none; }
.nav a[aria-current="page"] { color: var(--text); background: var(--surface-strong); box-shadow: inset 0 0 0 1px var(--border); }

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  padding: 112px 0 96px;
  border-bottom: 1px solid var(--border);
  isolation: isolate;
}
.hero::before {
  /* grid */
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 30%, transparent 75%);
  mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 30%, transparent 75%);
}
.hero::after {
  /* glow */
  content: "";
  position: absolute;
  z-index: -1;
  width: 900px;
  height: 600px;
  top: -260px;
  left: 50%;
  transform: translateX(-30%);
  background:
    radial-gradient(closest-side, rgba(34, 211, 238, 0.22), transparent),
    radial-gradient(closest-side at 70% 60%, rgba(124, 92, 255, 0.22), transparent);
  filter: blur(20px);
  pointer-events: none;
}
.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  line-height: 1.05;
  margin: 0 0 22px;
  letter-spacing: -0.035em;
  font-weight: 750;
  max-width: 820px;
}
.hero p {
  font-size: 1.2rem;
  color: var(--muted);
  max-width: 640px;
  margin: 0;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 36px; }

/* Sections */
section { padding: 88px 0; position: relative; }
section h2 {
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
  line-height: 1.15;
  margin: 0 0 28px;
  letter-spacing: -0.025em;
}
.lead { color: var(--muted); max-width: 700px; font-size: 1.05rem; }

.alt {
  background:
    radial-gradient(ellipse 60% 50% at 100% 0%, rgba(124, 92, 255, 0.08), transparent),
    var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.card {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  background: linear-gradient(180deg, var(--surface-strong), var(--surface));
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}
.card:hover { border-color: rgba(34, 211, 238, 0.4); box-shadow: var(--glow); transform: translateY(-2px); }
.card h3 { margin: 0 0 10px; font-size: 1.4rem; letter-spacing: -0.015em; }
.card .icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  margin-bottom: 22px;
  color: var(--accent);
  background: rgba(34, 211, 238, 0.08);
  box-shadow: inset 0 0 0 1px rgba(34, 211, 238, 0.3), 0 0 24px rgba(34, 211, 238, 0.15);
}
.card .icon.violet {
  color: #a78bfa;
  background: rgba(124, 92, 255, 0.1);
  box-shadow: inset 0 0 0 1px rgba(124, 92, 255, 0.4), 0 0 24px rgba(124, 92, 255, 0.18);
}
.card .icon svg { width: 24px; height: 24px; }
.card .tag {
  font-family: var(--mono);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: 8px;
}
.card p { margin: 0 0 24px; color: var(--muted); flex: 1; }
.card .actions { display: flex; gap: 12px; flex-wrap: wrap; }

.button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 10px;
  background: var(--gradient);
  color: #04121a;
  font-weight: 650;
  font-size: 0.97rem;
  box-shadow: 0 6px 24px rgba(34, 211, 238, 0.25);
  transition: box-shadow 0.2s, transform 0.2s;
}
.button:hover { color: #04121a; text-decoration: none; box-shadow: 0 8px 32px rgba(34, 211, 238, 0.4); transform: translateY(-1px); }
.button.secondary {
  background: var(--surface-strong);
  color: var(--text);
  box-shadow: inset 0 0 0 1px var(--border-strong);
}
.button.secondary:hover { color: var(--text); box-shadow: inset 0 0 0 1px var(--accent), 0 0 24px rgba(34, 211, 238, 0.2); }

.features {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.features li {
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 22px 22px 24px;
  background: var(--surface);
  overflow: hidden;
  transition: border-color 0.2s, background 0.2s;
}
.features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 2px;
  border-radius: 2px;
  background: var(--gradient);
  opacity: 0.7;
}
.features li:hover { border-color: var(--border-strong); background: var(--surface-strong); }
.features strong { display: block; margin-bottom: 6px; font-weight: 650; }
.features span { color: var(--muted); font-size: 0.95rem; }

.contact-box {
  border: 1px solid rgba(34, 211, 238, 0.3);
  border-radius: var(--radius);
  padding: 32px;
  background: linear-gradient(180deg, rgba(34, 211, 238, 0.06), var(--surface));
  box-shadow: 0 0 48px rgba(34, 211, 238, 0.08);
  max-width: 640px;
}
.contact-box .email { font-size: 1.5rem; font-weight: 650; letter-spacing: -0.01em; }

.faq { max-width: 760px; margin: 0; }
.faq dt { font-weight: 650; margin-top: 24px; }
.faq dt:first-child { margin-top: 0; }
.faq dd { margin: 6px 0 0; color: var(--muted); }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  color: var(--muted);
  font-size: 0.9rem;
}
.site-footer .container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.site-footer a { color: var(--muted); }
.site-footer a:hover { color: var(--text); }

.hero-split {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 56px;
}
.hero-split .device {
  width: 260px;
  height: auto;
  border-radius: 36px;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.12),
    0 30px 80px rgba(0, 0, 0, 0.6),
    0 0 90px rgba(34, 211, 238, 0.3);
}
@media (max-width: 720px) {
  .hero { padding: 72px 0 64px; }
  section { padding: 64px 0; }
  .hero-split { grid-template-columns: 1fr; gap: 40px; }
  .hero-split .device { width: 210px; justify-self: center; border-radius: 30px; }
}

/* Total Return page */
.hero .hero-cta { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin: 36px 0 20px; }
.fine { font-size: 0.9rem; color: var(--muted); margin-top: 12px; }
.hero .fine { font-size: 0.88rem; margin-top: 0; font-family: var(--mono); letter-spacing: 0.02em; }

.appstore-badge { display: inline-block; line-height: 0; border-radius: 10px; transition: box-shadow 0.2s, transform 0.2s; }
.appstore-badge img { height: 50px; width: auto; }
.appstore-badge:hover { box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.3), 0 0 32px rgba(34, 211, 238, 0.35); transform: translateY(-1px); }


.shots {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1.45fr;
  align-items: end;
  gap: 20px;
  margin-top: 48px;
}
.shot { margin: 0; text-align: center; }
.shot img {
  width: 100%;
  height: auto;
  border-radius: 22px;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1), 0 20px 50px rgba(0, 0, 0, 0.55), 0 0 40px rgba(124, 92, 255, 0.12);
  transition: transform 0.25s, box-shadow 0.25s;
}
.shot:hover img { transform: translateY(-4px); box-shadow: 0 0 0 1px rgba(34, 211, 238, 0.4), 0 24px 60px rgba(0, 0, 0, 0.6), 0 0 48px rgba(34, 211, 238, 0.25); }
.shot figcaption { margin-top: 12px; font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
@media (max-width: 720px) {
  .shots { grid-template-columns: 1fr 1fr; }
}

.faq-list { max-width: 780px; }
.faq-list details {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  margin-bottom: 10px;
  transition: border-color 0.2s, background 0.2s;
}
.faq-list details[open] { border-color: rgba(34, 211, 238, 0.35); background: var(--surface-strong); }
.faq-list summary {
  cursor: pointer;
  padding: 16px 20px;
  font-weight: 600;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+";
  font-family: var(--mono);
  font-size: 1.2rem;
  color: var(--accent);
  transition: transform 0.2s;
}
.faq-list details[open] summary::after { transform: rotate(45deg); }
.faq-list details > :not(summary) { margin: 0 20px 16px; color: var(--muted); }
.faq-list details ul { padding-left: 20px; }

.disclaimer { margin-top: 12px; font-size: 0.85rem; }
.site-footer .container.disclaimer { display: block; }

.legal { max-width: 760px; }
.legal h1 { font-size: clamp(2rem, 4vw, 2.6rem); letter-spacing: -0.025em; margin: 0 0 16px; }
.legal h2 { font-size: 1.2rem; margin: 36px 0 8px; letter-spacing: -0.01em; }
.legal p { color: #c4ccda; }

@media (max-width: 400px) {
  .container { padding: 0 16px; }
  .nav a { padding: 6px 9px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}