:root {
  --bg: #0b1220;
  --panel: #0f1a30;
  --panel-2: #132341;
  --text: #e8eefc;
  --muted: #a7b3cf;
  --border: rgba(255, 255, 255, 0.08);
  --accent: #63e6be;
  --danger: #ff6b6b;
  --warn: #ffd43b;
  --ok: #69db7c;
  --radius: 14px;
  --shadow: 0 14px 40px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica,
    Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: radial-gradient(1200px 900px at 15% 0%, #1a2b55 0%, var(--bg) 55%),
    var(--bg);
  color: var(--text);
  line-height: 1.45;
}

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

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1100px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(10px);
  background: rgba(11, 18, 32, 0.7);
  border-bottom: 1px solid var(--border);
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  gap: 16px;
}

.brand {
  display: flex;
  gap: 10px;
  align-items: center;
  font-weight: 800;
  letter-spacing: 0.2px;
}

.brand-badge {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, #63e6be 0%, #4dabf7 55%, #845ef7 100%);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.25);
}

.nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a {
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid transparent;
  color: var(--muted);
  font-weight: 600;
  font-size: 14px;
}

.nav a:hover {
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  text-decoration: none;
}

.hero {
  padding: 44px 0 22px;
}

.hero h1 {
  margin: 0 0 10px;
  font-size: clamp(28px, 3.6vw, 44px);
  line-height: 1.1;
}

.hero p {
  margin: 0;
  color: var(--muted);
  max-width: 70ch;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 18px;
  padding: 18px 0 44px;
}

.card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent),
    var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.card-inner {
  padding: 18px;
}

.card h2,
.card h3 {
  margin: 0 0 8px;
}

.muted {
  color: var(--muted);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.tool-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 18px;
  padding: 18px 0 44px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 14px;
}

.field {
  grid-column: span 12;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field label {
  font-weight: 700;
  color: var(--text);
  font-size: 14px;
}

.field .hint {
  font-size: 12px;
  color: var(--muted);
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 12px;
  outline: none;
  font-size: 14px;
}

textarea {
  min-height: 110px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: rgba(99, 230, 190, 0.55);
  box-shadow: 0 0 0 4px rgba(99, 230, 190, 0.15);
}

.row-6 {
  grid-column: span 6;
}

.row-4 {
  grid-column: span 4;
}

.row-3 {
  grid-column: span 3;
}

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.btn {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 14px;
  font-weight: 800;
  cursor: pointer;
}

.btn.primary {
  border-color: rgba(99, 230, 190, 0.55);
  background: linear-gradient(135deg, rgba(99, 230, 190, 0.25), rgba(77, 171, 247, 0.18));
}

.btn:hover {
  filter: brightness(1.05);
}

.results {
  display: grid;
  gap: 12px;
}

.result-item {
  padding: 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
}

.result-item .k {
  color: var(--muted);
  font-weight: 700;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.7px;
}

.result-item .v {
  margin-top: 6px;
  font-size: 18px;
  font-weight: 900;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-weight: 900;
  font-size: 12px;
  letter-spacing: 0.4px;
}

.badge.low {
  color: var(--ok);
  border-color: rgba(105, 219, 124, 0.35);
  background: rgba(105, 219, 124, 0.1);
}

.badge.medium {
  color: var(--warn);
  border-color: rgba(255, 212, 59, 0.35);
  background: rgba(255, 212, 59, 0.1);
}

.badge.high {
  color: #ffa94d;
  border-color: rgba(255, 169, 77, 0.35);
  background: rgba(255, 169, 77, 0.1);
}

.badge.extreme {
  color: var(--danger);
  border-color: rgba(255, 107, 107, 0.35);
  background: rgba(255, 107, 107, 0.1);
}

.notice {
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px dashed rgba(255, 255, 255, 0.18);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.03);
  font-size: 13px;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 20px 0;
  color: var(--muted);
  font-size: 13px;
}

.footer-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--muted);
  font-weight: 700;
}

@media (max-width: 920px) {
  .tool-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .row-6,
  .row-4,
  .row-3 {
    grid-column: span 12;
  }
  .nav a {
    padding: 6px 8px;
  }
}