:root {
  --bg-main: #111821;
  --bg-nav: #0f141c;
  --line: #2a3a4f;
  --text: #d9e0ea;
  --text-soft: #aeb8c6;
  --accent: #2f8fff;
  --success: #1dc47d;
  --danger: #ff5a76;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Manrope", sans-serif;
  background:
    radial-gradient(1200px 500px at 50% -10%, #213145 0%, transparent 55%),
    linear-gradient(180deg, #0d141d 0%, var(--bg-main) 100%);
  color: var(--text);
  min-height: 100vh;
}

.top-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--line);
  background: rgba(12, 18, 26, 0.9);
  backdrop-filter: blur(8px);
}

.nav-link,
.nav-button {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.95rem;
}

.nav-button {
  position: absolute;
  left: 24px;
  border: 1px solid var(--accent);
  padding: 6px 12px;
  border-radius: 8px;
}

.nav-link {
  position: absolute;
  right: 24px;
}

.page-shell {
  width: min(1200px, 96vw);
  margin: 0 auto;
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
  padding: 64px 46px 56px;
}

.hero h1,
.demo-card h2,
.fraud-card h2 {
  margin: 0 0 18px;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 500;
  letter-spacing: 0.4px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2rem, 3vw, 3.2rem);
}

.hero p {
  max-width: 900px;
  margin: 0 auto 14px;
  text-align: center;
  line-height: 1.75;
  font-size: 1.04rem;
  color: var(--text-soft);
}

.primary-cta {
  display: inline-block;
  margin: 12px auto 0;
  padding: 10px 14px;
  border: 1px solid var(--accent);
  border-radius: 10px;
  color: #d8e9ff;
  text-decoration: none;
  font-weight: 600;
  background: rgba(47, 143, 255, 0.14);
}

.hero .primary-cta {
  display: block;
  width: fit-content;
}

.demo-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 46px;
}

.demo-card,
.fraud-card {
  background: linear-gradient(180deg, #18212e 0%, #131b26 100%);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px;
}

.demo-card h2,
.fraud-card h2 {
  font-size: clamp(1.5rem, 2.3vw, 2.2rem);
}

.video-placeholder {
  border: 1px solid #354559;
  border-radius: 10px;
  min-height: 210px;
  background:
    linear-gradient(140deg, rgba(47, 143, 255, 0.12), rgba(47, 143, 255, 0.02)),
    linear-gradient(0deg, #0c1118, #111a25);
  display: grid;
  place-items: center;
  color: #bcd4f4;
  font-weight: 600;
}

.team-grid {
  margin-top: 52px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.profile-card {
  background: linear-gradient(180deg, #182330 0%, #121a24 100%);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  transition: transform 200ms ease, box-shadow 200ms ease;
}

.profile-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
}

.profile-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
}

.profile-card h3 {
  margin: 10px 12px 2px;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.05rem;
}

.profile-card p {
  margin: 0 12px 14px;
  color: var(--text-soft);
  font-size: 0.9rem;
}

.fraud-hero {
  margin-bottom: 28px;
}

.fraud-layout {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 20px;
}

.fraud-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.fraud-form label {
  display: block;
  color: var(--text-soft);
  font-size: 0.92rem;
}

.fraud-form input,
.fraud-form select {
  width: 100%;
  margin-top: 6px;
  border: 1px solid #30425a;
  background: #0f1722;
  color: var(--text);
  border-radius: 9px;
  padding: 10px;
}

.fraud-form label:first-child,
.fraud-form .primary-cta,
.check-row {
  grid-column: 1 / -1;
}

.check-row {
  display: flex;
  gap: 16px;
  margin-top: 4px;
}

.check-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.check-item input {
  width: auto;
  margin: 0;
}

.fraud-form .primary-cta {
  border: 1px solid var(--accent);
  cursor: pointer;
}

.result-note {
  text-align: center;
  color: var(--text-soft);
  margin-top: -4px;
}

.result-box {
  border-radius: 12px;
  border: 1px solid #31445a;
  padding: 16px;
  line-height: 1.6;
  margin-top: 12px;
}

.status-line {
  font-weight: 700;
}

.result-box.neutral {
  background: rgba(92, 112, 139, 0.15);
}

.result-box.safe {
  background: rgba(27, 103, 75, 0.2);
  border-color: rgba(29, 196, 125, 0.5);
}

.result-box.flagged {
  background: rgba(122, 29, 54, 0.24);
  border-color: rgba(255, 90, 118, 0.6);
}

@media (max-width: 1100px) {
  .team-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .fraud-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .page-shell {
    padding: 38px 20px 34px;
  }

  .demo-grid,
  .fraud-form {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .team-grid {
    grid-template-columns: 1fr;
  }

  .profile-card img {
    height: 300px;
  }
}