:root {
  --bg: #050810;
  --panel: rgba(15, 22, 34, 0.78);
  --panel-alt: rgba(17, 28, 46, 0.84);
  --line: rgba(135, 170, 224, 0.26);
  --line-strong: rgba(135, 170, 224, 0.45);
  --text: #edf3ff;
  --muted: #a6b7d4;
  --accent: #36d6ff;
  --accent-2: #9dff7a;
  --danger: #ff6a88;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  font-family: "Bahnschrift", "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(1300px 720px at 15% -15%, rgba(54, 214, 255, 0.17), transparent 68%),
    radial-gradient(900px 650px at 100% 8%, rgba(157, 255, 122, 0.09), transparent 70%),
    var(--bg);
  line-height: 1.5;
}

a {
  color: inherit;
}

code {
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.92rem;
  background: rgba(14, 23, 37, 0.9);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.14rem 0.35rem;
}

.scan-backdrop {
  position: fixed;
  inset: 0;
  overflow: hidden;
  z-index: -1;
  pointer-events: none;
}

.grid-glow {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(114, 153, 214, 0.06) 1px, transparent 1px) 0 0 / 36px 36px,
    linear-gradient(90deg, rgba(114, 153, 214, 0.06) 1px, transparent 1px) 0 0 / 36px 36px;
  mask-image: radial-gradient(circle at 50% 5%, black 0%, transparent 74%);
}

.pulse {
  position: absolute;
  width: 50vmax;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  border: 1px solid rgba(54, 214, 255, 0.18);
  animation: pulse 15s ease-in-out infinite;
}

.pulse--a {
  top: -14vmax;
  left: -12vmax;
}

.pulse--b {
  top: -19vmax;
  right: -18vmax;
  animation-delay: -4.5s;
}

.pulse--c {
  left: 30%;
  top: 52vmax;
  animation-delay: -9s;
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(0.92);
    opacity: 0.28;
  }
  50% {
    transform: scale(1.06);
    opacity: 0.64;
  }
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  backdrop-filter: blur(10px);
  background: rgba(3, 8, 16, 0.78);
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.62rem;
  text-decoration: none;
}

.brand__tag {
  display: inline-grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 8px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(130deg, rgba(54, 214, 255, 0.18), rgba(157, 255, 122, 0.16));
  font-weight: 700;
}

.brand__text {
  font-size: 1.04rem;
  letter-spacing: 0.08em;
  font-weight: 700;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 1.1rem;
}

.site-nav a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 600;
}

.site-nav a:hover {
  color: var(--text);
}

main {
  width: min(1280px, calc(100% - 2rem));
  margin-inline: auto;
  padding-bottom: 4rem;
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.2rem;
  margin-top: 1.15rem;
}

.hero__copy,
.hero__stats {
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.hero__copy {
  padding: 1.5rem;
}

.kicker {
  display: inline-block;
  margin: 0 0 0.65rem;
  font-size: 0.82rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--accent);
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 4.8vw, 3.25rem);
  line-height: 1.04;
}

.lead {
  margin: 0.95rem 0 0;
  color: var(--muted);
  max-width: 70ch;
}

.hero__actions {
  margin-top: 1.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 2.6rem;
  padding: 0.5rem 1rem;
  border-radius: 0.76rem;
  border: 1px solid var(--line);
  text-decoration: none;
  font-weight: 700;
  transition: transform 0.16s ease, border-color 0.16s ease, background-color 0.16s ease;
}

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

.btn--solid {
  background: linear-gradient(130deg, rgba(54, 214, 255, 0.96), rgba(85, 152, 255, 0.88));
  color: #001328;
  border-color: rgba(54, 214, 255, 0.78);
}

.btn--solid:hover {
  border-color: #78e5ff;
}

.btn--ghost {
  background: rgba(16, 27, 45, 0.9);
  color: var(--text);
}

.btn--ghost:hover {
  border-color: var(--line-strong);
}

.hero__highlights {
  margin: 1.2rem 0 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.hero__highlights li + li {
  margin-top: 0.26rem;
}

.signal-panel {
  margin-top: 1rem;
  border: 1px solid var(--line);
  background: rgba(10, 17, 30, 0.88);
  border-radius: 0.72rem;
  padding: 0.75rem 0.9rem;
}

.signal-panel__label {
  margin: 0;
  color: var(--accent);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.signal-panel__line {
  margin: 0.45rem 0 0;
  min-height: 1.5rem;
  font-weight: 600;
}

.hero__stats {
  padding: 1rem;
  display: grid;
  gap: 0.72rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-content: start;
}

.hero-shot {
  margin: 0;
  grid-column: 1 / -1;
  border: 1px solid var(--line);
  border-radius: 0.72rem;
  background: rgba(10, 17, 30, 0.92);
  overflow: hidden;
}

.hero-shot img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 300px;
  object-fit: cover;
}

.hero-shot figcaption {
  margin: 0;
  padding: 0.45rem 0.6rem 0.58rem;
  font-size: 0.82rem;
  color: var(--muted);
}

.stat-card {
  border: 1px solid var(--line);
  border-radius: 0.72rem;
  padding: 0.95rem;
  background: rgba(11, 19, 33, 0.92);
}

.stat-card__value {
  margin: 0;
  font-size: 1.58rem;
  font-weight: 800;
  color: var(--accent-2);
}

.stat-card__label {
  margin: 0.3rem 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.section {
  margin-top: 1.2rem;
  padding: 1.4rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.section--alt {
  background: var(--panel-alt);
}

.section__head h2 {
  margin: 0;
  font-size: clamp(1.4rem, 3.6vw, 2.1rem);
}

.section__kicker {
  margin: 0 0 0.45rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.75rem;
  color: var(--accent);
}

.section__head p {
  color: var(--muted);
  margin-top: 0.55rem;
  max-width: 74ch;
}

.chip-row {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.chip {
  border-radius: 999px;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--line);
  background: rgba(13, 21, 36, 0.85);
  color: var(--muted);
  cursor: pointer;
  font-weight: 700;
}

.chip--active,
.chip:hover {
  color: var(--text);
  border-color: var(--line-strong);
}

.feature-grid {
  margin-top: 0.95rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 0.72rem;
}

.feature-card {
  border: 1px solid var(--line);
  border-radius: 0.72rem;
  padding: 0.92rem;
  background: rgba(10, 17, 30, 0.85);
}

.feature-card h3 {
  margin: 0;
  font-size: 1.05rem;
}

.feature-card p {
  margin: 0.5rem 0 0;
  color: var(--muted);
}

.release-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0.78rem;
}

.release-card {
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  padding: 0.95rem;
  background: rgba(10, 17, 30, 0.9);
}

.release-card h3 {
  margin-top: 0;
}

.release-card ul,
.release-card ol {
  margin: 0.6rem 0 0;
  padding-left: 1.12rem;
  color: var(--muted);
}

.release-card li + li {
  margin-top: 0.32rem;
}

.meta-line {
  margin-top: 0.64rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.tutorial-shell {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 0.8rem;
}

.tutorial-shell__panel {
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  padding: 0.95rem;
  background: rgba(10, 17, 30, 0.88);
}

.tutorial-shell__panel h3 {
  margin-top: 0;
}

.tutorial-shell__panel ul {
  margin: 0.6rem 0 0;
  padding-left: 1.15rem;
  color: var(--muted);
}

.dictionary-intro {
  margin-top: 0.95rem;
  border: 1px solid var(--line);
  border-radius: 0.72rem;
  padding: 0.74rem 0.88rem;
  background: rgba(10, 17, 30, 0.8);
}

.dictionary-grid {
  margin-top: 0.9rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0.72rem;
}

.dictionary-card {
  border: 1px solid var(--line);
  border-radius: 0.74rem;
  padding: 0.92rem;
  background: rgba(10, 17, 30, 0.9);
}

.dictionary-card h3 {
  margin: 0;
}

.dictionary-card p {
  margin: 0.5rem 0 0;
  color: var(--muted);
}

.dictionary-card__meta {
  margin-top: 0.55rem;
  color: var(--muted);
  font-size: 0.86rem;
}

.tag-list {
  margin-top: 0.62rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.tag-pill {
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
  padding: 0.22rem 0.5rem;
  font-size: 0.74rem;
}

.faq-list {
  margin-top: 0.8rem;
  display: grid;
  gap: 0.56rem;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: 0.65rem;
  background: rgba(10, 17, 30, 0.9);
  padding: 0.74rem 0.84rem;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 700;
}

.faq-list p {
  margin: 0.62rem 0 0;
  color: var(--muted);
}

.site-footer {
  width: min(1280px, calc(100% - 2rem));
  margin: 0 auto 1.1rem;
  border: 1px solid var(--line);
  border-radius: 0.85rem;
  padding: 0.78rem 1rem;
  text-align: center;
  color: var(--muted);
  background: rgba(9, 15, 26, 0.9);
}

.is-hidden {
  display: none !important;
}

@media (max-width: 980px) {
  .hero {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  body {
    font-size: 0.96rem;
  }

  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero__copy,
  .section {
    padding: 1rem;
  }

  .hero__stats {
    grid-template-columns: 1fr;
  }
}