:root {
  --sh-black: #041014;
  --sh-navy: #061b22;
  --sh-navy-2: #092d38;
  --sh-cyan: #19c8ec;
  --sh-cyan-soft: #9eeafa;
  --sh-red: #d62d2d;
  --sh-white: #f1f5f5;
  --sh-paper: #e7eef0;
  --sh-muted: #65777d;
  --sh-line: rgba(25,200,236,.2);
  --sh-shell: min(1160px, calc(100% - 48px));
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--sh-black); background: var(--sh-white); font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; font-size: 16px; line-height: 1.65; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
.sh-shell { width: var(--sh-shell); margin-inline: auto; }
.sh-skip-link { position: fixed; z-index: 1000; top: 10px; left: 10px; padding: 10px 16px; color: var(--sh-black); background: var(--sh-cyan); transform: translateY(-150%); }
.sh-skip-link:focus { transform: none; }

.sh-header { position: absolute; z-index: 20; inset: 0 0 auto; border-bottom: 1px solid rgba(255,255,255,.1); }
.sh-header-inner { min-height: 86px; display: flex; align-items: center; justify-content: space-between; gap: 30px; }
.sh-brand { display: inline-flex; align-items: center; gap: 11px; color: var(--sh-white); text-decoration: none; }
.sh-brand img { width: 34px; height: 47px; object-fit: contain; }
.sh-brand > span { display: grid; gap: 4px; line-height: 1; }
.sh-brand strong { font-size: 16px; letter-spacing: .07em; }
.sh-brand small { color: var(--sh-cyan); font-size: 8px; font-weight: 800; letter-spacing: .35em; text-transform: uppercase; }
.sh-back { color: rgba(241,245,245,.68); font-size: 13px; font-weight: 700; text-decoration: none; }
.sh-back:hover { color: var(--sh-cyan); }

.sh-hero { position: relative; min-height: 900px; display: grid; align-items: center; overflow: hidden; color: var(--sh-white); background: radial-gradient(circle at 76% 40%, rgba(25,200,236,.17), transparent 27%), linear-gradient(125deg, #02090c 0%, #061b22 55%, #0a3440 100%); }
.sh-hero::before { content: ""; position: absolute; inset: 0; opacity: .15; pointer-events: none; background-image: linear-gradient(rgba(25,200,236,.1) 1px, transparent 1px), linear-gradient(90deg, rgba(25,200,236,.1) 1px, transparent 1px); background-size: 68px 68px; mask-image: linear-gradient(to right, transparent 8%, black 72%, transparent); }
.sh-hero::after { content: ""; position: absolute; width: 560px; height: 560px; right: -250px; bottom: -280px; border: 1px solid rgba(25,200,236,.22); border-radius: 50%; box-shadow: 0 0 0 80px rgba(25,200,236,.025), 0 0 0 160px rgba(25,200,236,.018); }
.sh-hero-grid { position: relative; z-index: 2; display: grid; grid-template-columns: 1.06fr .94fr; gap: 78px; align-items: center; padding: 148px 0 78px; }
.sh-overline { margin: 0 0 20px; color: var(--sh-cyan); font-size: 11px; font-weight: 900; letter-spacing: .2em; text-transform: uppercase; }
.sh-overline--dark { color: #087e98; }
.sh-hero h1 { max-width: 690px; margin: 0; font-size: clamp(58px, 7vw, 91px); font-weight: 760; line-height: .9; letter-spacing: -.065em; }
.sh-hero h1 span { display: block; color: var(--sh-red); }
.sh-subtitle { max-width: 650px; margin: 28px 0 0; color: var(--sh-white); font-size: 22px; font-weight: 650; line-height: 1.38; }
.sh-intro { max-width: 665px; margin: 23px 0 0; color: rgba(241,245,245,.62); }
.sh-intro strong { color: var(--sh-white); }
.sh-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.sh-button { min-height: 52px; display: inline-flex; align-items: center; justify-content: center; padding: 0 24px; border: 1px solid transparent; border-radius: 4px; font-size: 13px; font-weight: 850; letter-spacing: .035em; text-decoration: none; transition: transform .2s, background .2s, color .2s; }
.sh-button:hover { transform: translateY(-2px); }
.sh-button--primary { color: var(--sh-black); background: var(--sh-cyan); box-shadow: 0 0 30px rgba(25,200,236,.16); }
.sh-button--primary:hover { background: var(--sh-cyan-soft); }
.sh-button--outline { color: var(--sh-white); border-color: rgba(241,245,245,.3); }
.sh-button--outline:hover { border-color: var(--sh-cyan); }
.sh-cover-wrap { position: relative; min-height: 640px; display: grid; place-items: center; margin: 0; background: transparent; }
.sh-cover { position: relative; z-index: 2; width: min(100%, 450px); max-height: 680px; object-fit: contain; filter: drop-shadow(0 44px 60px rgba(0,0,0,.55)); transform: rotate(1deg); }
.sh-scan-lines { position: absolute; z-index: 1; width: 510px; max-width: 100%; aspect-ratio: 1; border: 1px solid rgba(25,200,236,.22); border-radius: 50%; box-shadow: inset 0 0 70px rgba(25,200,236,.06), 0 0 0 50px rgba(25,200,236,.025), 0 0 0 100px rgba(25,200,236,.015); }
.sh-scan-lines::before, .sh-scan-lines::after { content: ""; position: absolute; background: rgba(25,200,236,.18); }
.sh-scan-lines::before { inset: 50% 0 auto; height: 1px; }
.sh-scan-lines::after { inset: 0 auto 0 50%; width: 1px; }
.sh-cover-wrap figcaption { position: absolute; z-index: 3; bottom: -5px; color: rgba(241,245,245,.38); font-size: 10px; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }

.sh-progress { color: var(--sh-white); background: var(--sh-red); }
.sh-progress-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.sh-progress article { min-height: 135px; display: grid; grid-template-columns: auto 1fr; column-gap: 18px; align-content: center; padding: 28px 38px; border-right: 1px solid rgba(255,255,255,.2); }
.sh-progress article:last-child { border-right: 0; }
.sh-progress span { grid-row: 1 / 3; align-self: center; color: rgba(255,255,255,.55); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
.sh-progress h2 { margin: 0; font-size: 22px; line-height: 1.2; }
.sh-progress small { color: rgba(255,255,255,.65); }

.sh-section { padding: 118px 0; }
.sh-reading-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 100px; align-items: start; }
.sh-section-heading { position: sticky; top: 40px; }
.sh-section-heading h2 { max-width: 470px; margin: 0; font-size: clamp(43px, 5vw, 64px); line-height: 1.03; letter-spacing: -.045em; }
.sh-reading-grid > .sh-prose { padding-top: 38px; }
.sh-prose { max-width: 700px; color: #4d6066; font-size: 18px; line-height: 1.82; }
.sh-prose p { margin: 0 0 28px; }
.sh-prose strong { color: var(--sh-black); }

.sh-surface { padding: 110px 0; color: var(--sh-white); background: radial-gradient(circle at 80% 15%, rgba(25,200,236,.12), transparent 24%), var(--sh-navy); }
.sh-surface-heading { display: grid; grid-template-columns: 1.15fr .85fr; gap: 80px; align-items: start; margin-bottom: 52px; }
.sh-surface-heading h2 { max-width: 700px; margin: 0; font-size: clamp(42px, 4.7vw, 62px); line-height: 1.04; letter-spacing: -.045em; }
.sh-surface-heading > p { max-width: 480px; margin: 0; padding-top: 38px; color: rgba(241,245,245,.56); }
.sh-asset-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.sh-asset-grid article { min-height: 170px; display: flex; flex-direction: column; justify-content: space-between; padding: 24px; border: 1px solid rgba(255,255,255,.1); background: rgba(255,255,255,.025); }
.sh-asset-grid article:last-child { grid-column: span 2; }
.sh-asset-grid span { color: var(--sh-cyan); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; font-weight: 800; letter-spacing: .1em; }
.sh-asset-grid h3 { margin: 34px 0 0; font-size: 17px; line-height: 1.3; }

.sh-toolkit { background: var(--sh-paper); }
.sh-toolkit-heading { max-width: 900px; margin-bottom: 56px; }
.sh-toolkit-heading h2 { margin: 0; font-size: clamp(42px, 4.8vw, 64px); line-height: 1.04; letter-spacing: -.045em; }
.sh-toolkit-heading > p:last-child { max-width: 820px; margin: 22px 0 0; color: var(--sh-muted); font-size: 17px; }
.sh-toolkit-heading strong { color: var(--sh-black); }
.sh-tool-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.sh-tool-grid article { min-height: 285px; padding: 28px; border: 1px solid rgba(6,27,34,.12); background: rgba(255,255,255,.72); }
.sh-tool-grid article > span { min-height: 42px; display: inline-flex; align-items: center; padding: 0 12px; color: #057c95; border: 1px solid rgba(25,200,236,.32); background: rgba(25,200,236,.08); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11px; }
.sh-tool-grid h3 { margin: 48px 0 12px; font-size: 20px; }
.sh-tool-grid p { margin: 0; color: var(--sh-muted); font-size: 14px; }

.sh-observe { padding: 108px 0; color: var(--sh-white); background: var(--sh-black); }
.sh-observe-grid { display: grid; grid-template-columns: 420px 1fr; gap: 100px; align-items: center; }
.sh-radar { position: relative; width: 390px; max-width: 100%; aspect-ratio: 1; display: grid; place-items: center; border: 1px solid rgba(25,200,236,.28); border-radius: 50%; background: radial-gradient(circle, rgba(25,200,236,.13), transparent 66%); box-shadow: inset 0 0 60px rgba(25,200,236,.06); }
.sh-radar::before, .sh-radar::after { content: ""; position: absolute; border: 1px solid rgba(25,200,236,.22); border-radius: 50%; }
.sh-radar::before { inset: 18%; }
.sh-radar::after { inset: 36%; }
.sh-radar span:first-child { position: absolute; inset: 50% 0 auto; border-top: 1px solid rgba(25,200,236,.18); }
.sh-radar span:nth-child(2) { position: absolute; inset: 0 auto 0 50%; border-left: 1px solid rgba(25,200,236,.18); }
.sh-radar span:nth-child(3) { position: absolute; width: 12px; height: 12px; top: 28%; right: 26%; border-radius: 50%; background: var(--sh-red); box-shadow: 0 0 0 7px rgba(214,45,45,.12), 0 0 24px rgba(214,45,45,.7); }
.sh-radar strong { position: relative; z-index: 2; color: var(--sh-cyan); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; letter-spacing: .16em; }
.sh-observe h2 { max-width: 660px; margin: 0; font-size: clamp(43px, 5vw, 67px); line-height: 1.02; letter-spacing: -.05em; }
.sh-observe p:not(.sh-overline) { max-width: 670px; margin: 24px 0 0; color: rgba(241,245,245,.62); font-size: 18px; }
.sh-observe strong { color: var(--sh-white); }

.sh-paths { background: var(--sh-white); }
.sh-path-list { display: flex; flex-wrap: wrap; gap: 9px; margin: 34px 0; }
.sh-path-list span { padding: 9px 14px; color: #076f86; border: 1px solid rgba(25,200,236,.28); border-radius: 999px; background: rgba(25,200,236,.07); font-family: Inter, ui-sans-serif, sans-serif; font-size: 12px; font-weight: 800; }

.sh-download { padding: 100px 0; color: var(--sh-white); background: radial-gradient(circle at 85% 20%, rgba(25,200,236,.14), transparent 25%), var(--sh-navy); }
.sh-download-grid { display: grid; grid-template-columns: 1fr 300px; gap: 90px; align-items: center; }
.sh-download h2 { margin: 0; font-size: clamp(54px, 6vw, 82px); line-height: 1; letter-spacing: -.05em; }
.sh-download p:not(.sh-overline) { max-width: 560px; margin: 22px 0 30px; color: rgba(241,245,245,.58); font-size: 17px; }
.sh-button--disabled { color: rgba(241,245,245,.45); border-color: rgba(241,245,245,.18); cursor: default; }
.sh-button--disabled:hover { transform: none; }
.sh-download small { display: block; margin-top: 13px; color: rgba(241,245,245,.34); }
.sh-download img { width: 280px; max-height: 405px; object-fit: contain; filter: drop-shadow(0 28px 44px rgba(0,0,0,.48)); transform: rotate(1.5deg); }

.sh-footer { color: rgba(241,245,245,.48); background: #02090c; }
.sh-footer .sh-shell { min-height: 92px; display: flex; align-items: center; justify-content: space-between; gap: 24px; border-top: 1px solid rgba(255,255,255,.08); font-size: 12px; }
.sh-footer a { color: var(--sh-cyan); text-decoration: none; }

@media (max-width: 920px) {
  .sh-hero-grid { grid-template-columns: 1fr; gap: 54px; padding-top: 150px; }
  .sh-hero-copy { max-width: 780px; }
  .sh-cover-wrap { min-height: 600px; }
  .sh-reading-grid { grid-template-columns: 1fr; gap: 44px; }
  .sh-reading-grid > .sh-prose { padding-top: 0; }
  .sh-section-heading { position: static; }
  .sh-asset-grid, .sh-tool-grid { grid-template-columns: repeat(2, 1fr); }
  .sh-observe-grid { grid-template-columns: 330px 1fr; gap: 60px; }
  .sh-radar { width: 320px; }
  .sh-download-grid { grid-template-columns: 1fr 250px; gap: 54px; }
}

@media (max-width: 640px) {
  :root { --sh-shell: min(100% - 28px, 1160px); }
  .sh-header-inner { min-height: 72px; }
  .sh-brand img { width: 29px; height: 40px; }
  .sh-brand strong { font-size: 14px; }
  .sh-back { font-size: 12px; }
  .sh-hero { min-height: auto; }
  .sh-hero-grid { gap: 38px; padding: 118px 0 66px; }
  .sh-hero h1 { font-size: clamp(47px, 15vw, 65px); }
  .sh-subtitle { font-size: 19px; }
  .sh-actions, .sh-actions .sh-button { width: 100%; }
  .sh-cover-wrap { min-height: 500px; }
  .sh-cover { max-height: 520px; }
  .sh-progress-grid { grid-template-columns: 1fr; }
  .sh-progress article { min-height: 100px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.2); }
  .sh-progress article:last-child { border-bottom: 0; }
  .sh-section, .sh-surface { padding: 78px 0; }
  .sh-surface-heading { grid-template-columns: 1fr; gap: 20px; }
  .sh-surface-heading > p { padding-top: 0; }
  .sh-asset-grid, .sh-tool-grid { grid-template-columns: 1fr; }
  .sh-asset-grid article:last-child { grid-column: auto; }
  .sh-tool-grid article { min-height: 235px; }
  .sh-tool-grid h3 { margin-top: 36px; }
  .sh-observe { padding: 80px 0; }
  .sh-observe-grid { grid-template-columns: 1fr; gap: 50px; }
  .sh-radar { width: min(100%, 330px); margin-inline: auto; }
  .sh-download { padding: 78px 0; }
  .sh-download-grid { grid-template-columns: 1fr; gap: 50px; }
  .sh-download img { width: min(100%, 270px); margin-inline: auto; }
  .sh-footer .sh-shell { align-items: flex-start; flex-direction: column; justify-content: center; gap: 6px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}