/* ZAROX CORE — OS shell (aligned with Expo brand) */
@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=Manrope:wght@400;500;600&family=Syne:wght@600;700&display=swap");

:root {
  --os-bg: #080808;
  --os-panel: #121212;
  --os-ink: #f5f5f5;
  --os-mute: #8a8a8a;
  --os-line: rgba(255, 255, 255, 0.08);
  --os-accent: #ff5a1f;
  --os-accent-dim: rgba(255, 90, 31, 0.28);
  --os-font: "Manrope", "Helvetica Neue", Helvetica, sans-serif;
  --os-display: "Syne", "Manrope", sans-serif;
  --os-mono: "IBM Plex Mono", ui-monospace, monospace;
}

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

html, body.core-os {
  min-height: 100%;
  background: var(--os-bg);
  color: var(--os-ink);
  font-family: var(--os-font);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.os-aurora {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 70% 45% at 72% 8%, rgba(255, 90, 31, 0.14), transparent 62%),
    radial-gradient(ellipse 50% 40% at 8% 88%, rgba(255, 120, 60, 0.07), transparent 65%),
    linear-gradient(180deg, #0a0a0a 0%, #070707 100%);
}
.os-aurora canvas {
  display: block;
  width: 100%;
  height: 100%;
  opacity: 0.85;
}
.os-aurora.is-static {
  background:
    radial-gradient(ellipse 60% 40% at 70% 10%, rgba(255, 90, 31, 0.16), transparent 70%),
    #080808;
}

.os-shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}

.os-nav {
  border-right: 1px solid var(--os-line);
  padding: 1.65rem 1.1rem 1.35rem;
  display: flex;
  flex-direction: column;
  gap: 2.1rem;
  background: rgba(6, 6, 7, 0.72);
  backdrop-filter: blur(12px);
}

.os-brand {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.2rem 0.4rem;
  text-decoration: none;
  color: inherit;
}

.os-brand-mark-img {
  width: 30px;
  height: 30px;
  display: block;
  flex-shrink: 0;
  filter: drop-shadow(0 0 12px var(--os-accent-dim));
}

.os-brand-name {
  font-family: var(--os-display);
  font-size: 0.95rem;
  letter-spacing: 0.26em;
  font-weight: 700;
  margin-left: 0.1em;
}
.os-brand-sub {
  font-family: var(--os-mono);
  font-size: 0.62rem;
  letter-spacing: 0.42em;
  color: var(--os-accent);
  margin-top: 0.2rem;
}

.os-tagline {
  margin-top: 0.85rem;
  font-family: var(--os-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--os-mute);
}

.os-lockup {
  width: min(360px, 82vw);
  height: auto;
  display: block;
  border-radius: 2px;
  border: 1px solid rgba(255, 90, 31, 0.22);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.45);
}

.os-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.os-nav-item {
  text-align: left;
  background: transparent;
  border: 0;
  color: var(--os-mute);
  font-family: var(--os-font);
  font-size: 0.84rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  padding: 0.6rem 0.75rem;
  border-radius: 2px;
  cursor: pointer;
  transition: color 0.2s, background 0.2s, box-shadow 0.2s;
  position: relative;
  text-decoration: none;
  display: block;
}
.os-nav-item:hover { color: var(--os-ink); background: rgba(255, 255, 255, 0.03); }
.os-nav-item.is-active {
  color: var(--os-ink);
  background: rgba(255, 90, 31, 0.08);
  box-shadow: inset 2px 0 0 var(--os-accent);
}

.os-nav-foot {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 0 0.65rem;
}
.os-nav-foot a,
.os-lang {
  color: var(--os-mute);
  text-decoration: none;
  font-family: var(--os-mono);
  font-size: 0.65rem;
  letter-spacing: 0.06em;
}
.os-lang {
  background: transparent;
  border: 1px solid var(--os-line);
  border-radius: 2px;
  padding: 0.28rem 0.5rem;
  cursor: pointer;
  align-self: flex-start;
  transition: border-color 0.2s, color 0.2s;
}
.os-nav-foot a:hover,
.os-lang:hover {
  color: var(--os-accent);
  border-color: rgba(255, 90, 31, 0.4);
}

.os-main {
  padding: 1.4rem 2rem 2.75rem;
  max-width: 1120px;
}

.os-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.85rem;
}

.os-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--os-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--os-mute);
  border: 1px solid var(--os-line);
  padding: 0.35rem 0.7rem;
  border-radius: 2px;
  background: rgba(18, 18, 18, 0.55);
}
.os-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--os-accent);
  box-shadow: 0 0 10px var(--os-accent-dim);
  animation: os-pulse 2.8s ease-in-out infinite;
}
@keyframes os-pulse {
  0%, 100% { opacity: 0.55; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.15); }
}

.os-clock {
  font-family: var(--os-mono);
  font-size: 0.72rem;
  color: var(--os-mute);
  letter-spacing: 0.08em;
}

.os-panel[hidden] { display: none !important; }
.os-panel h2 {
  font-family: var(--os-display);
  font-weight: 600;
  font-size: clamp(1.35rem, 2.4vw, 1.7rem);
  letter-spacing: 0.04em;
  margin-bottom: 0.45rem;
}
.os-lead {
  color: var(--os-mute);
  font-size: 0.95rem;
  max-width: 34rem;
  margin-bottom: 1.6rem;
  line-height: 1.55;
}

.os-stage {
  display: grid;
  grid-template-columns: minmax(220px, 360px) 1fr;
  gap: 2.4rem;
  align-items: center;
  min-height: min(52vh, 420px);
  margin-bottom: 2.1rem;
}

.os-stage-copy .os-kicker {
  font-family: var(--os-mono);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--os-accent);
  margin-bottom: 0.75rem;
}

.os-stage-copy h1 {
  font-family: var(--os-display);
  font-weight: 700;
  font-size: clamp(2rem, 4.2vw, 3rem);
  letter-spacing: 0.02em;
  line-height: 1.05;
  margin-bottom: 0.85rem;
}
.os-stage-copy > p {
  color: var(--os-mute);
  max-width: 30rem;
  line-height: 1.6;
  font-size: 1.02rem;
}

.os-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.4rem;
}
.os-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.72rem 1.15rem;
  text-decoration: none;
  font-family: var(--os-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 2px;
  transition: background 0.2s, border-color 0.2s, color 0.2s, transform 0.2s;
}
.os-cta-primary {
  background: var(--os-accent);
  color: #0a0a0a;
  border: 1px solid var(--os-accent);
  font-weight: 500;
}
.os-cta-primary:hover {
  filter: brightness(1.06);
  transform: translateY(-1px);
}
.os-cta-ghost {
  background: transparent;
  color: var(--os-ink);
  border: 1px solid rgba(255, 255, 255, 0.16);
}
.os-cta-ghost:hover {
  border-color: rgba(255, 90, 31, 0.55);
  color: var(--os-accent);
}

.os-activity {
  border-top: 1px solid var(--os-line);
  padding-top: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-family: var(--os-mono);
  font-size: 0.7rem;
  color: var(--os-mute);
  letter-spacing: 0.04em;
  min-height: 6rem;
}
.os-activity div {
  opacity: 0;
  animation: os-fade-in 0.6s ease forwards;
  border-left: 2px solid transparent;
  padding-left: 0.55rem;
}
.os-activity div:first-child {
  border-left-color: var(--os-accent);
  color: #cfcfcf;
}
@keyframes os-fade-in {
  to { opacity: 1; }
}

.os-about {
  max-width: 40rem;
  margin: 0 0 2rem;
  padding: 1.25rem 0 0;
  border-top: 1px solid var(--os-line);
}
.os-about h2 {
  font-size: 1.05rem;
  margin-bottom: 0.55rem;
}
.os-about p {
  color: var(--os-mute);
  line-height: 1.65;
  font-size: 0.95rem;
}

.faq-page .faq-wrap {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0 auto;
  padding: 1.6rem 1.25rem 4rem;
}
.faq-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.2rem;
}
.faq-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.1rem;
}
.faq-nav a {
  color: var(--os-mute);
  text-decoration: none;
  font-size: 0.84rem;
}
.faq-nav a:hover { color: var(--os-accent); }
.faq-kicker {
  font-family: var(--os-mono);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--os-accent);
  margin-bottom: 0.7rem;
}
.faq-page h1 {
  font-family: var(--os-display);
  font-weight: 700;
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  letter-spacing: 0.02em;
  margin-bottom: 0.85rem;
}
.faq-lead {
  color: var(--os-mute);
  line-height: 1.65;
  margin-bottom: 2rem;
  max-width: 40rem;
}
.faq-lead a, .faq-item a { color: var(--os-accent); }
.faq-item {
  padding: 1.15rem 0;
  border-top: 1px solid var(--os-line);
}
.faq-item h2 {
  font-family: var(--os-display);
  font-size: 1.08rem;
  font-weight: 600;
  margin-bottom: 0.45rem;
}
.faq-item p {
  color: var(--os-mute);
  line-height: 1.65;
  font-size: 0.95rem;
}

.os-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--os-line);
}
.os-list li {
  display: grid;
  grid-template-columns: 1.2fr 1.6fr auto;
  gap: 1rem;
  align-items: center;
  padding: 1.05rem 0.15rem;
  border-bottom: 1px solid var(--os-line);
  font-size: 0.9rem;
  transition: background 0.2s;
}
.os-list li:hover { background: rgba(255, 90, 31, 0.03); }
.os-list strong { font-weight: 600; font-family: var(--os-display); letter-spacing: 0.02em; }
.os-list span { color: var(--os-mute); }
.os-list em {
  font-style: normal;
  font-family: var(--os-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--os-accent);
}
.os-list a {
  color: var(--os-ink);
  text-decoration: none;
  font-family: var(--os-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.os-list a:hover { color: var(--os-accent); }

.os-actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 0.75rem;
}
.os-action {
  background: rgba(18, 18, 18, 0.72);
  border: 1px solid var(--os-line);
  padding: 1.4rem 1.25rem;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  border-radius: 2px;
  transition: border-color 0.22s, background 0.22s, transform 0.22s;
  min-height: 118px;
}
.os-action:hover {
  background: rgba(255, 90, 31, 0.06);
  border-color: rgba(255, 90, 31, 0.4);
  transform: translateY(-2px);
}
.os-action span {
  font-family: var(--os-mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--os-accent);
}
.os-action strong {
  font-family: var(--os-display);
  font-weight: 600;
  font-size: 1.08rem;
  letter-spacing: 0.01em;
  line-height: 1.25;
}

/* Products — 4 clean surfaces */
.os-products {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}
.os-product {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-height: 168px;
  padding: 1.35rem 1.3rem 1.4rem;
  text-decoration: none;
  color: inherit;
  background: rgba(14, 14, 14, 0.82);
  border: 1px solid var(--os-line);
  border-radius: 4px;
  overflow: hidden;
  transition: border-color 0.22s, background 0.22s, transform 0.22s, box-shadow 0.22s;
}
.os-product::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: transparent;
  transition: background 0.22s;
}
.os-product:hover {
  background: rgba(255, 90, 31, 0.05);
  border-color: rgba(255, 90, 31, 0.42);
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
}
.os-product:hover::before { background: var(--os-accent); }
.os-product.is-soon {
  opacity: 0.72;
  cursor: default;
  pointer-events: none;
}
.os-product.is-soon:hover {
  transform: none;
  box-shadow: none;
  background: rgba(14, 14, 14, 0.82);
  border-color: var(--os-line);
}
.os-product-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.85rem;
}
.os-product-code {
  font-family: var(--os-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  color: var(--os-mute);
}
.os-badge {
  font-family: var(--os-mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.28rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--os-line);
  color: var(--os-mute);
}
.os-badge.is-live {
  color: #ffb199;
  border-color: rgba(255, 90, 31, 0.35);
  background: rgba(255, 90, 31, 0.08);
}
.os-badge.is-soon {
  color: var(--os-mute);
  border-color: rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
}
.os-product h3 {
  font-family: var(--os-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.04em;
  margin: 0;
}
.os-product-ch {
  font-family: var(--os-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--os-accent);
  margin: 0.15rem 0 0.45rem;
}
.os-product-d {
  margin: 0;
  margin-top: auto;
  color: var(--os-mute);
  font-size: 0.88rem;
  line-height: 1.45;
  max-width: 28rem;
}

@media (max-width: 900px) {
  .os-products { grid-template-columns: 1fr; }
}

/* Enter motion */
.os-enter .os-brand,
.os-enter .os-nav-item,
.os-enter .os-stage,
.os-enter .os-top {
  opacity: 0;
  transform: translateY(10px);
}
.os-enter-active .os-brand,
.os-enter-active .os-nav-item,
.os-enter-active .os-stage,
.os-enter-active .os-top {
  opacity: 1;
  transform: none;
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.os-enter-active .os-brand { transition-delay: 0.05s; }
.os-enter-active .os-nav-item:nth-child(1) { transition-delay: 0.1s; }
.os-enter-active .os-nav-item:nth-child(2) { transition-delay: 0.15s; }
.os-enter-active .os-nav-item:nth-child(3) { transition-delay: 0.2s; }
.os-enter-active .os-nav-item:nth-child(4) { transition-delay: 0.25s; }
.os-enter-active .os-nav-item:nth-child(5) { transition-delay: 0.3s; }
.os-enter-active .os-top { transition-delay: 0.12s; }
.os-enter-active .os-stage { transition-delay: 0.18s; }

@media (prefers-reduced-motion: reduce) {
  .os-dot { animation: none; }
  .os-enter .os-brand,
  .os-enter .os-nav-item,
  .os-enter .os-stage,
  .os-enter .os-top,
  .os-enter-active .os-brand,
  .os-enter-active .os-nav-item,
  .os-enter-active .os-stage,
  .os-enter-active .os-top {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .os-action:hover { transform: none; }
}

@media (max-width: 860px) {
  .os-shell { grid-template-columns: 1fr; }
  .os-nav {
    border-right: 0;
    border-bottom: 1px solid var(--os-line);
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    padding: 1rem;
  }
  .os-nav-list {
    flex-direction: row;
    flex-wrap: wrap;
    width: 100%;
    gap: 0.15rem;
  }
  .os-nav-item { padding: 0.45rem 0.55rem; font-size: 0.8rem; }
  .os-nav-item.is-active { box-shadow: inset 0 -2px 0 var(--os-accent); }
  .os-nav-foot { width: 100%; flex-direction: row; align-items: center; gap: 1rem; margin-top: 0; }
  .os-main { padding: 1rem 1.1rem 2rem; }
  .os-stage {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
    min-height: 0;
    gap: 1.35rem;
  }
  .os-stage-copy p { margin-left: auto; margin-right: auto; }
  .os-cta-row { justify-content: center; }
  .os-list li { grid-template-columns: 1fr; gap: 0.25rem; }
}

@media (max-width: 480px) {
  .os-panel h2 { font-size: 1.2rem; }
  .os-clock { font-size: 0.62rem; }
  .os-top { margin-bottom: 1.1rem; }
  .os-lockup { width: min(280px, 86vw); }
  .os-stage-copy h1 { font-size: 1.7rem; }
}