:root {
  --bg: #020617;
  --panel: #0f172a;
  --panel-soft: #111827;
  --border: #1e293b;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --accent-strong: #0284c7;
  --green: #22c55e;
  --red: #ef4444;
  --yellow: #f59e0b;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.18), transparent 35%),
    radial-gradient(circle at top right, rgba(34, 197, 94, 0.12), transparent 30%),
    var(--bg);
  color: var(--text);
}

.layout {
  max-width: 1180px;
  margin: 0 auto;
  padding: 48px 22px;
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  align-items: center;
  margin-bottom: 32px;
}

.badge {
  display: inline-flex;
  padding: 8px 12px;
  border: 1px solid rgba(56, 189, 248, 0.4);
  border-radius: 999px;
  color: var(--accent);
  background: rgba(56, 189, 248, 0.08);
  font-size: 13px;
  font-weight: 700;
}

h1 {
  margin: 18px 0 12px;
  font-size: clamp(38px, 6vw, 68px);
  line-height: 0.95;
  letter-spacing: -0.06em;
}

h2 {
  margin: 0 0 8px;
  font-size: 24px;
}

h3 {
  margin: 0 0 12px;
}

.subtitle {
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.6;
}

.hero-card,
.stat-card,
.panel,
.architecture {
  border: 1px solid var(--border);
  background: rgba(15, 23, 42, 0.82);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  backdrop-filter: blur(16px);
}

.hero-card {
  min-width: 240px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px;
  border-radius: 18px;
}

.hero-card p,
.stat-card p,
.panel-header p,
.architecture p,
.technical-flow li {
  color: var(--muted);
}

.status-dot {
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: var(--green);
  box-shadow: 0 0 22px var(--green);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-bottom: 24px;
}

.stat-card {
  padding: 20px;
  border-radius: 20px;
}

.stat-label {
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.stat-card strong {
  display: block;
  margin-top: 12px;
  font-size: 20px;
}

.main-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(320px, 0.8fr);
  gap: 24px;
  margin-bottom: 24px;
}

.panel {
  padding: 28px;
  border-radius: 24px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}

.presets {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.presets button {
  border: 1px solid var(--border);
  background: rgba(30, 41, 59, 0.8);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 999px;
  font-weight: 700;
  cursor: pointer;
}

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

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

label span {
  font-weight: 800;
}

label small {
  color: var(--muted);
  line-height: 1.35;
}

input[type="number"] {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  background: #020617;
  color: var(--text);
  font-size: 16px;
  outline: none;
}

input[type="number"]:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.12);
}

.switch-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 24px 0;
}

.switch {
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px;
  background: rgba(2, 6, 23, 0.55);
  cursor: pointer;
}

.switch input {
  accent-color: var(--accent);
}

.primary-btn {
  width: 100%;
  border: none;
  border-radius: 16px;
  padding: 16px 22px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #00111f;
  font-weight: 900;
  font-size: 16px;
  cursor: pointer;
}

.primary-btn:hover {
  filter: brightness(1.08);
}

.risk-card {
  border-radius: 22px;
  padding: 24px;
  border: 1px solid var(--border);
  background: rgba(2, 6, 23, 0.55);
  margin: 22px 0;
}

.risk-card strong {
  display: block;
  margin: 12px 0;
  font-size: 34px;
  line-height: 1;
}

.risk-label {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 900;
}

.risk-card.neutral .risk-label {
  color: var(--yellow);
}

.risk-card.safe {
  border-color: rgba(34, 197, 94, 0.45);
  box-shadow: inset 0 0 40px rgba(34, 197, 94, 0.08);
}

.risk-card.safe .risk-label,
.risk-card.safe strong {
  color: var(--green);
}

.risk-card.fraud {
  border-color: rgba(239, 68, 68, 0.5);
  box-shadow: inset 0 0 40px rgba(239, 68, 68, 0.08);
}

.risk-card.fraud .risk-label,
.risk-card.fraud strong {
  color: var(--red);
}

.risk-card.error {
  border-color: rgba(245, 158, 11, 0.5);
}

.risk-card.error .risk-label,
.risk-card.error strong {
  color: var(--yellow);
}

.technical-flow {
  border-top: 1px solid var(--border);
  padding-top: 20px;
}

.technical-flow ol {
  padding-left: 20px;
}

code {
  color: var(--accent);
  background: rgba(56, 189, 248, 0.1);
  padding: 2px 6px;
  border-radius: 6px;
}

.architecture {
  padding: 28px;
  border-radius: 24px;
}

.architecture-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 20px;
}

.architecture-grid div {
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px;
  background: rgba(2, 6, 23, 0.45);
}

.architecture-grid strong {
  color: var(--accent);
}

@media (max-width: 920px) {
  .hero,
  .main-grid {
    grid-template-columns: 1fr;
    display: grid;
  }

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

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

@media (max-width: 560px) {
  .stats-grid,
  .architecture-grid {
    grid-template-columns: 1fr;
  }

  .layout {
    padding: 28px 16px;
  }

  .panel {
    padding: 20px;
  }
}