:root {
  --bg: #15171c;
  --bg-soft: #101217;
  --panel: #1b1e25;
  --card: #232833;
  --card-hover: #2c323f;
  --fg: #e7eaf1;
  --muted: #8a93a6;
  --accent: #3d8bfd;
  --accent-hover: #5b9dff;
  --border: #2a3040;
  --radius: 14px;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--fg);
  text-decoration-color: rgba(138, 147, 166, 0.5);
  text-underline-offset: 3px;
}

a:hover {
  color: #fff;
  text-decoration-color: var(--accent);
}

code,
kbd {
  font-family: ui-monospace, "Cascadia Code", "SFMono-Regular", Consolas, monospace;
  font-size: 0.9em;
}

code {
  background: rgba(61, 139, 253, 0.1);
  border: 1px solid rgba(61, 139, 253, 0.18);
  color: #cfe0ff;
  padding: 0.1em 0.4em;
  border-radius: 6px;
}

kbd {
  background: var(--card);
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 5px;
  padding: 0.05em 0.35em;
  color: var(--fg);
}

h1,
h2,
h3 {
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0;
}

h2 {
  font-size: clamp(1.7rem, 3.2vw, 2.5rem);
}

p {
  margin: 0;
}

.wrap {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  background: var(--accent);
  color: #fff;
  padding: 10px 16px;
  border-radius: 8px;
  z-index: 20;
  transition: top 0.15s ease;
}

.skip-link:focus {
  top: 16px;
}

/* ---------- header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(21, 23, 28, 0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(42, 48, 64, 0.7);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-decoration: none;
  font-size: 1.02rem;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: linear-gradient(150deg, rgba(61, 139, 253, 0.28), rgba(61, 139, 253, 0.08));
  border: 1px solid rgba(61, 139, 253, 0.35);
  color: var(--accent-hover);
}

.brand-mark svg {
  width: 17px;
  height: 17px;
}

.nav {
  display: flex;
  gap: 22px;
  margin-left: auto;
  font-size: 0.94rem;
}

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

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

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 10px;
  font-size: 0.98rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
  white-space: nowrap;
}

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

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 24px rgba(61, 139, 253, 0.28);
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff;
}

.btn-ghost {
  background: rgba(35, 40, 51, 0.6);
  border-color: var(--border);
  color: var(--fg);
}

.btn-ghost:hover {
  background: var(--card-hover);
  color: #fff;
  border-color: #3a4358;
}

.btn-small {
  padding: 9px 15px;
  font-size: 0.9rem;
}

/* ---------- hero ---------- */

.hero {
  position: relative;
  padding: clamp(56px, 9vw, 104px) 0 0;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: -30% 10% auto;
  height: 620px;
  background: radial-gradient(closest-side, rgba(61, 139, 253, 0.22), transparent 72%);
  pointer-events: none;
}

.hero-copy {
  position: relative;
  max-width: 780px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 0.84rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--muted);
  background: rgba(35, 40, 51, 0.55);
  border: 1px solid var(--border);
  padding: 7px 13px;
  border-radius: 999px;
  margin-bottom: 26px;
}

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(61, 139, 253, 0.16);
}

h1 {
  font-size: clamp(2.5rem, 6.4vw, 4.35rem);
  letter-spacing: -0.035em;
  margin-bottom: 22px;
}

.accent {
  color: var(--accent-hover);
}

.lede {
  font-size: clamp(1.02rem, 1.5vw, 1.16rem);
  color: #b7bfd0;
  max-width: 660px;
}

.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.fineprint {
  margin-top: 18px;
  font-size: 0.9rem;
  color: var(--muted);
}

.hero-figure {
  position: relative;
  margin-top: clamp(38px, 6vw, 64px);
}

.hero-figure img {
  width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow), 0 0 0 1px rgba(255, 255, 255, 0.02) inset;
}

figcaption {
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.92rem;
}

/* ---------- sections ---------- */

.section {
  padding: clamp(64px, 9vw, 108px) 0 0;
}

.section-head {
  max-width: 700px;
  margin-bottom: 34px;
}

.kicker {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-hover);
  margin-bottom: 12px;
}

.section-head h2,
.format-grid h2 {
  margin-bottom: 14px;
}

.section-lede {
  color: var(--muted);
  font-size: 1.02rem;
}

.shots {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}

.shot img {
  width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel);
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.shot:hover img {
  border-color: #3a4358;
  transform: translateY(-2px);
}

.shot figcaption {
  padding-right: 8px;
}

.shot strong {
  color: var(--fg);
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card {
  background: linear-gradient(180deg, rgba(35, 40, 51, 0.85), rgba(27, 30, 37, 0.85));
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px 22px 24px;
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.card:hover {
  border-color: #3a4358;
  transform: translateY(-2px);
}

.card h3 {
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  margin-bottom: 9px;
}

.card p {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.55;
}

.proof {
  margin-top: 26px;
  padding: 18px 22px;
  border-left: 3px solid var(--accent);
  background: rgba(35, 40, 51, 0.5);
  border-radius: 0 10px 10px 0;
  color: #b7bfd0;
  font-size: 0.95rem;
}

.proof strong {
  color: var(--fg);
}

/* ---------- format ---------- */

.format-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.95fr);
  gap: clamp(28px, 5vw, 60px);
  align-items: start;
}

.ticks {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: grid;
  gap: 12px;
  color: var(--muted);
  font-size: 0.98rem;
}

.ticks li {
  position: relative;
  padding-left: 28px;
}

.ticks li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0.52em;
  width: 10px;
  height: 6px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}

.code-card {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.code-head {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  font-family: ui-monospace, Consolas, monospace;
  font-size: 0.82rem;
  color: var(--muted);
  background: rgba(35, 40, 51, 0.35);
}

.code-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(61, 139, 253, 0.14);
}

.code-card pre {
  margin: 0;
  padding: 18px 18px 6px;
  overflow-x: auto;
  font-size: 0.84rem;
  line-height: 1.75;
}

.code-card pre code,
.snippet code {
  background: none;
  border: 0;
  padding: 0;
  color: #c9d3e6;
  font-size: inherit;
}

.code-note {
  padding: 10px 18px 20px;
  color: var(--muted);
  font-size: 0.86rem;
}

/* ---------- download ---------- */

.download-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 20px;
  background:
    radial-gradient(120% 160% at 0% 0%, rgba(61, 139, 253, 0.16), transparent 55%),
    linear-gradient(180deg, rgba(35, 40, 51, 0.9), rgba(27, 30, 37, 0.95));
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: clamp(26px, 4vw, 42px);
}

.download-copy p {
  color: var(--muted);
  font-size: 1rem;
}

.download-copy h2 {
  margin-bottom: 14px;
}

.download-copy strong {
  color: var(--fg);
}

.download-side {
  border-left: 1px solid var(--border);
  padding-left: clamp(20px, 3vw, 34px);
}

.steps {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 12px;
  font-size: 0.95rem;
}

.steps li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: #c3cad8;
}

.steps span {
  flex: 0 0 26px;
  height: 26px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(61, 139, 253, 0.16);
  border: 1px solid rgba(61, 139, 253, 0.35);
  color: var(--accent-hover);
  font-size: 0.8rem;
  font-weight: 700;
}

.side-note {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.snippet {
  margin: 0;
  padding: 14px 16px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow-x: auto;
  font-size: 0.82rem;
  line-height: 1.7;
}

/* ---------- footer ---------- */

.site-footer {
  margin-top: clamp(64px, 9vw, 104px);
  border-top: 1px solid var(--border);
  padding: 30px 0 40px;
  background: rgba(16, 18, 23, 0.6);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 28px;
  font-size: 0.9rem;
  color: var(--muted);
}

.footer-inner nav {
  display: flex;
  gap: 20px;
  margin-left: auto;
}

.footer-inner a {
  color: var(--muted);
  text-decoration: none;
}

.footer-inner a:hover {
  color: var(--fg);
}

.footer-note {
  flex-basis: 100%;
  font-size: 0.82rem;
  color: #6f7889;
}

@media (max-width: 900px) {
  .cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .format-grid,
  .download-panel {
    grid-template-columns: minmax(0, 1fr);
  }

  .download-side {
    border-left: 0;
    border-top: 1px solid var(--border);
    padding-left: 0;
    padding-top: 22px;
  }

  .nav {
    display: none;
  }

  .header-cta {
    margin-left: auto;
  }
}

@media (max-width: 680px) {
  body {
    font-size: 16px;
  }

  .shots,
  .cards {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-inner nav {
    margin-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition: none !important;
  }
}