:root {
  --bg: #07111f;
  --panel: #0d1b2e;
  --panel-2: #10243a;
  --ink: #f7fbff;
  --muted: #9fb0c5;
  --line: rgba(255, 255, 255, 0.13);
  --cyan: #67e8f9;
  --green: #5eead4;
  --amber: #fbbf24;
  --red: #fb7185;
  --paper: #f6f8fb;
  --dark: #101828;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid var(--line);
  background: rgba(7, 17, 31, 0.84);
  backdrop-filter: blur(18px);
}

.brand,
nav,
.hero-actions,
.input-row {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 850;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: 8px;
  color: #07111f;
  background: var(--green);
  font-size: 12px;
}

nav {
  gap: clamp(14px, 2vw, 28px);
  color: var(--muted);
  font-size: 14px;
  font-weight: 750;
}

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.75fr);
  gap: clamp(32px, 6vw, 96px);
  align-items: center;
  min-height: 86vh;
  padding: clamp(72px, 10vw, 128px) clamp(20px, 5vw, 72px);
  background:
    radial-gradient(circle at 78% 22%, rgba(103, 232, 249, 0.18), transparent 34%),
    radial-gradient(circle at 20% 86%, rgba(94, 234, 212, 0.16), transparent 28%),
    var(--bg);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 880px;
  margin-bottom: 24px;
  font-size: clamp(46px, 7vw, 94px);
  line-height: 0.94;
  letter-spacing: 0;
}

.lede {
  max-width: 720px;
  margin-bottom: 34px;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.6;
}

.hero-actions {
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0 18px;
  font: inherit;
  font-size: 14px;
  font-weight: 850;
  cursor: pointer;
}

.button.primary {
  color: #07111f;
  background: var(--green);
}

.button.secondary {
  color: var(--ink);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.08);
}

.terminal-card,
.scanner-panel,
.result-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(13, 27, 46, 0.88);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
}

.terminal-card {
  overflow: hidden;
}

.terminal-header {
  display: flex;
  gap: 8px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.05);
}

.terminal-header span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--red);
}

.terminal-header span:nth-child(2) {
  background: var(--amber);
}

.terminal-header span:nth-child(3) {
  background: var(--green);
}

pre {
  margin: 0;
  padding: 28px;
  overflow: auto;
  color: #bdf8ea;
  font-size: 15px;
  line-height: 1.8;
}

.hero-visual {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.04);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
}

.hero-visual img,
.gallery img {
  display: block;
  width: 100%;
  height: auto;
}

.scanner-section,
.signals,
.architecture,
.gallery {
  padding: clamp(64px, 9vw, 118px) clamp(20px, 5vw, 72px);
}

.scanner-section,
.gallery {
  color: var(--dark);
  background: var(--paper);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(280px, 0.6fr);
  gap: 32px;
  align-items: end;
  margin-bottom: 36px;
}

.section-heading h2,
.architecture h2 {
  margin-bottom: 0;
  font-size: clamp(32px, 4.6vw, 60px);
  line-height: 1.02;
  letter-spacing: 0;
}

.section-copy,
.arch-copy {
  margin: 12px 0 0;
  color: #5b6678;
  font-size: 17px;
  line-height: 1.65;
}

.scanner-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.65fr);
  gap: 18px;
}

.scanner-panel,
.result-panel {
  padding: clamp(22px, 3vw, 34px);
  color: var(--ink);
}

.scanner-panel label {
  display: block;
  margin-bottom: 12px;
  color: #d9e7f5;
  font-weight: 850;
}

.input-row {
  gap: 10px;
}

input {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 14px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.08);
  font: inherit;
}

.hint {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.risk-score {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 18px;
}

.risk-score svg {
  width: 112px;
  height: 112px;
  transform: rotate(-90deg);
}

.gauge-bg,
.gauge-value {
  fill: none;
  stroke-width: 12;
}

.gauge-bg {
  stroke: rgba(255, 255, 255, 0.12);
}

.gauge-value {
  stroke: var(--amber);
  stroke-linecap: round;
  stroke-dasharray: 314;
  stroke-dashoffset: 101;
  transition: stroke-dashoffset 220ms ease, stroke 220ms ease;
}

.risk-score span {
  display: block;
  font-size: 54px;
  font-weight: 950;
  line-height: 1;
}

.risk-score small {
  color: var(--muted);
  font-weight: 850;
}

.gallery {
  border-top: 1px solid rgba(16, 24, 40, 0.08);
}

.gallery-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.gallery figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(16, 24, 40, 0.1);
  border-radius: 10px;
  background: #ffffff;
  box-shadow: 0 18px 54px rgba(16, 24, 40, 0.1);
}

.gallery figure.wide {
  grid-column: 1 / -1;
}

.gallery figcaption {
  border-top: 1px solid rgba(16, 24, 40, 0.08);
  padding: 14px 16px;
  color: #30394a;
  font-size: 14px;
  font-weight: 850;
}

.finding-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.finding-list li {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  color: #dce8f4;
  background: rgba(255, 255, 255, 0.05);
  font-size: 14px;
}

.signals {
  background: #07111f;
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
}

.signal-grid article {
  min-height: 260px;
  padding: 28px;
  background: #0b1627;
}

.signal-grid span {
  color: var(--green);
  font-weight: 900;
}

.signal-grid h3 {
  margin: 54px 0 14px;
  font-size: 22px;
}

.signal-grid p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.6;
}

.architecture {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(320px, 0.9fr);
  gap: 40px;
  align-items: center;
  color: var(--dark);
  background: var(--paper);
}

.architecture-steps {
  display: grid;
  gap: 14px;
}

.architecture-steps div {
  border-left: 5px solid var(--green);
  border-radius: 8px;
  padding: 20px;
  background: #ffffff;
  box-shadow: 0 14px 40px rgba(16, 24, 40, 0.08);
  font-weight: 900;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 26px clamp(20px, 5vw, 72px);
  color: var(--muted);
  font-weight: 750;
}

@media (max-width: 900px) {
  nav {
    display: none;
  }

  .hero,
  .section-heading,
  .scanner-grid,
  .architecture,
  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .signal-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  h1 {
    font-size: 42px;
  }

  .input-row,
  .button {
    width: 100%;
  }

  .input-row {
    display: grid;
  }

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

  footer {
    display: grid;
  }
}