@font-face {
  font-family: "Chakra Petch";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../assets/fonts/chakra-petch-500.woff2") format("woff2");
}
@font-face {
  font-family: "Chakra Petch";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../assets/fonts/chakra-petch-700.woff2") format("woff2");
}
@font-face {
  font-family: "Manrope";
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url("../assets/fonts/manrope.woff2") format("woff2");
}

:root {
  --bg: #0a0a0c;
  --surface: #131316;
  --surface-2: #1a1a1f;
  --border: rgba(255, 255, 255, .08);
  --border-strong: rgba(255, 255, 255, .14);
  --text: #f4f4f6;
  --muted: #a0a0ab;
  --red: #ff2e3f;
  --red-soft: #ff5a67;
  --red-deep: #c2121f;
  --glow: rgba(255, 46, 63, .35);
  --radius: 16px;
  --radius-lg: 22px;
  --font-display: "Chakra Petch", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, "Segoe UI", sans-serif;
  --maxw: 1140px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.1; letter-spacing: -.01em; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 780px; }
.grad {
  background: linear-gradient(120deg, var(--red-soft), var(--red));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
kbd {
  font-family: var(--font-body); font-size: .82em; font-weight: 700;
  background: var(--surface-2); border: 1px solid var(--border-strong);
  border-bottom-width: 2px; border-radius: 6px; padding: 1px 7px; white-space: nowrap;
}
code {
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace;
  font-size: .9em; background: rgba(255,46,63,.1); color: var(--red-soft);
  padding: 1px 6px; border-radius: 6px;
}

.btn {
  display: inline-flex; align-items: center; gap: 9px; justify-content: center;
  font-family: var(--font-display); font-weight: 700; font-size: .95rem;
  letter-spacing: .01em; line-height: 1; cursor: pointer; border: 0;
  padding: 14px 24px; border-radius: 12px; transition: transform .15s ease, box-shadow .25s ease, background .2s ease;
}
.btn-sm { padding: 10px 18px; font-size: .85rem; }
.btn-lg { padding: 17px 32px; font-size: 1.02rem; }
.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--red), var(--red-deep));
  box-shadow: 0 8px 26px -8px var(--glow), inset 0 1px 0 rgba(255,255,255,.18);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 38px -8px var(--glow), inset 0 1px 0 rgba(255,255,255,.25); }
.btn-ghost {
  color: var(--text); background: rgba(255,255,255,.04);
  border: 1px solid var(--border-strong);
}
.btn-ghost:hover { background: rgba(255,255,255,.08); transform: translateY(-2px); }

.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  transition: background .3s ease, border-color .3s ease, backdrop-filter .3s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(10, 10, 12, .72);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; letter-spacing: .12em; }
.site-nav { display: flex; align-items: center; gap: 30px; }
.site-nav a:not(.btn) { color: var(--muted); font-weight: 600; font-size: .95rem; transition: color .2s ease; }
.site-nav a:not(.btn):hover { color: var(--text); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: transform .25s ease, opacity .2s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.hero { position: relative; padding: 170px 0 110px; text-align: center; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: 0; opacity: .5;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 0%, #000 30%, transparent 75%);
          mask-image: radial-gradient(ellipse 70% 60% at 50% 0%, #000 30%, transparent 75%);
}
.hero-glow {
  position: absolute; top: -120px; left: 50%; transform: translateX(-50%);
  width: 720px; height: 520px; z-index: 0; pointer-events: none;
  background: radial-gradient(circle, var(--glow) 0%, transparent 65%);
  filter: blur(20px);
}
.hero-inner { position: relative; z-index: 1; }
.badge {
  display: inline-block; font-size: .82rem; font-weight: 700; letter-spacing: .03em;
  color: var(--red-soft); background: rgba(255,46,63,.1);
  border: 1px solid rgba(255,46,63,.3); border-radius: 100px; padding: 7px 16px; margin-bottom: 28px;
}
.hero h1 { font-size: clamp(2.6rem, 7vw, 5rem); font-weight: 700; }
.hero-sub { max-width: 620px; margin: 24px auto 0; color: var(--muted); font-size: clamp(1.02rem, 2.2vw, 1.2rem); }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 38px; }
.hero-fine { margin-top: 22px; color: var(--muted); font-size: .85rem; }

.section { padding: 96px 0; position: relative; }
.section-alt { background: linear-gradient(180deg, transparent, rgba(255,255,255,.015), transparent); }
.section-title { font-size: clamp(2rem, 4.5vw, 3rem); font-weight: 700; text-align: center; }
.section-lead { text-align: center; color: var(--muted); max-width: 620px; margin: 16px auto 0; font-size: 1.05rem; }
.section [id], section[id] { scroll-margin-top: 90px; }

.grid { display: grid; gap: 20px; margin-top: 56px; }
.features-grid { grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); }

.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px; transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.card:hover { transform: translateY(-4px); border-color: var(--border-strong); background: var(--surface-2); }
.icon-box {
  width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center;
  color: var(--red-soft); background: rgba(255,46,63,.1); border: 1px solid rgba(255,46,63,.22);
  margin-bottom: 20px;
}
.icon-box svg { width: 24px; height: 24px; }
.card h3 { font-size: 1.2rem; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: .96rem; }

.modules-grid { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.module-cat {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 28px; transition: border-color .2s ease, transform .2s ease;
}
.module-cat:hover { border-color: rgba(255,46,63,.3); transform: translateY(-3px); }
.module-cat h3 { font-size: 1.1rem; display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.module-cat .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--red); box-shadow: 0 0 10px var(--glow); }
.module-cat ul { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 16px; }
.module-cat li { color: var(--muted); font-size: .92rem; font-weight: 500; position: relative; padding-left: 14px; }
.module-cat li::before { content: ""; position: absolute; left: 0; top: .62em; width: 5px; height: 5px; border-radius: 1px; background: rgba(255,46,63,.55); }
.module-cat-more { display: flex; flex-direction: column; justify-content: center; background: linear-gradient(135deg, rgba(255,46,63,.07), var(--surface)); }
.module-cat-more p { color: var(--muted); font-size: .95rem; }

.shots-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.shot {
  aspect-ratio: 16 / 9; border-radius: var(--radius); display: grid; place-items: center;
  border: 1px solid var(--border);
  background:
    radial-gradient(circle at 30% 20%, rgba(255,46,63,.18), transparent 55%),
    linear-gradient(135deg, var(--surface-2), var(--surface));
  color: var(--muted); font-family: var(--font-display); font-weight: 500; letter-spacing: .04em; font-size: .92rem;
  position: relative; overflow: hidden;
}
.shot::after {
  content: ""; position: absolute; inset: 0;
  background: repeating-linear-gradient(45deg, transparent, transparent 14px, rgba(255,255,255,.015) 14px, rgba(255,255,255,.015) 28px);
}
.shot span { position: relative; z-index: 1; }

.download-card {
  position: relative; max-width: 720px; margin: 0 auto; text-align: center;
  background: var(--surface); border: 1px solid rgba(255,46,63,.25); border-radius: var(--radius-lg);
  padding: 56px 40px; overflow: hidden;
}
.download-card > * { position: relative; z-index: 1; }
.download-card .download-glow {
  position: absolute; top: -20%; left: 50%; transform: translateX(-50%);
  width: 440px; height: 440px; max-width: 90%; pointer-events: none; z-index: 0;
  background: radial-gradient(circle, var(--glow), transparent 60%); filter: blur(10px);
}
.download-logo {
  width: 84px; height: 84px; margin: 0 auto 22px;
  filter: drop-shadow(0 10px 26px var(--glow));
  animation: floaty 5s ease-in-out infinite;
}
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
.download-card h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
.download-req a, .install-steps a, .faq a { color: var(--red-soft); text-decoration: underline; text-underline-offset: 2px; }
.download-req a:hover, .install-steps a:hover, .faq a:hover { color: #fff; }
.download-version { color: var(--muted); margin: 12px 0 28px; }
.download-req { color: var(--muted); font-size: .85rem; margin-top: 14px; }
.install-steps { display: grid; gap: 14px; margin-top: 40px; text-align: left; max-width: 540px; margin-left: auto; margin-right: auto; }
.install-steps li { display: flex; align-items: flex-start; gap: 14px; color: var(--muted); font-size: .98rem; }
.install-steps li span {
  flex: none; width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 700; font-size: .9rem; color: var(--red-soft);
  background: rgba(255,46,63,.12); border: 1px solid rgba(255,46,63,.25);
}

.faq { margin-top: 48px; display: grid; gap: 12px; }
.faq details {
  background: var(--surface); border: 1px solid var(--border); border-radius: 12px;
  padding: 4px 22px; transition: border-color .2s ease;
}
.faq details[open] { border-color: rgba(255,46,63,.3); }
.faq summary {
  list-style: none; cursor: pointer; padding: 18px 0; font-family: var(--font-display);
  font-weight: 500; font-size: 1.05rem; display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; font-family: var(--font-body); font-weight: 700; font-size: 1.4rem; color: var(--red-soft);
  transition: transform .25s ease; line-height: 1;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: var(--muted); padding: 0 0 20px; font-size: .98rem; }

.site-footer { border-top: 1px solid var(--border); padding: 48px 0; text-align: center; }
.site-footer .brand { justify-content: center; margin-bottom: 16px; color: var(--text); }
.site-footer p { color: var(--muted); font-size: .9rem; }
.footer-fine { font-size: .8rem; margin-top: 6px; opacity: .7; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .site-nav {
    position: fixed; inset: 68px 0 auto 0; flex-direction: column; align-items: stretch; gap: 6px;
    background: rgba(10,10,12,.96); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border); padding: 18px 24px 26px;
    transform: translateY(-130%); transition: transform .3s ease; visibility: hidden;
  }
  .site-nav.open { transform: translateY(0); visibility: visible; }
  .site-nav a:not(.btn) { padding: 12px 4px; font-size: 1.05rem; border-bottom: 1px solid var(--border); }
  .site-nav .btn { margin-top: 12px; }
}
@media (max-width: 600px) {
  .section { padding: 72px 0; }
  .hero { padding: 140px 0 80px; }
  .card, .module-cat { padding: 24px; }
  .download-card { padding: 40px 24px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
}