/* LCRD design system (from stellar.lcrd.fi): glass surfaces over a navy page,
   indigo→violet accent, cyan focus, tier colours, Inter + mono numerals. */
:root {
  --navy-950: #0a0e1a;
  --indigo-300: #a5b4fc;
  --indigo-600: #5b4fe9;
  --violet-600: #6d3fea;
  --cyan-300: #67e8f9;
  --emerald-400: #34d399;
  --amber-300: #fcd34d;
  --red-400: #f87171;

  --color-bg: var(--navy-950);
  --color-bg-surface: rgba(255, 255, 255, 0.06);
  --color-bg-raised: rgba(255, 255, 255, 0.1);
  --color-text-primary: #f5f7ff;
  --color-text-secondary: rgba(255, 255, 255, 0.64);
  --color-text-disabled: rgba(255, 255, 255, 0.38);
  --color-border-subtle: rgba(255, 255, 255, 0.1);
  --color-border-strong: rgba(255, 255, 255, 0.2);
  --color-focus-ring: var(--cyan-300);
  --color-accent-subtle-bg: rgba(99, 102, 241, 0.2);
  --color-accent-text: var(--indigo-300);
  --gradient-accent: linear-gradient(135deg, var(--indigo-600), var(--violet-600));
  --gradient-text: linear-gradient(120deg, var(--indigo-300), var(--cyan-300));
  --color-success-subtle-bg: rgba(16, 185, 129, 0.18);
  --color-success-text: var(--emerald-400);
  --color-warn-subtle-bg: rgba(252, 211, 77, 0.14);
  --color-warn-text: var(--amber-300);
  --color-neutral-subtle-bg: rgba(255, 255, 255, 0.08);

  --color-tier-a-bg: var(--color-success-subtle-bg);
  --color-tier-a-text: var(--color-success-text);
  --color-tier-b-bg: var(--color-accent-subtle-bg);
  --color-tier-b-text: var(--color-accent-text);
  --color-tier-c-bg: var(--color-neutral-subtle-bg);
  --color-tier-c-text: var(--color-text-secondary);
  --color-tier-s-bg: rgba(103, 232, 249, 0.14);
  --color-tier-s-text: var(--cyan-300);

  --glass-blur: blur(14px) saturate(180%);
  --shadow-border: 0 0 0 1px var(--color-border-subtle), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  --shadow-border-hover: 0 0 0 1px var(--color-border-strong), inset 0 1px 0 rgba(255, 255, 255, 0.12);
  --shadow-elevated: 0 0 0 1px rgba(255, 255, 255, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.1),
    0 4px 8px rgba(0, 0, 0, 0.18), 0 16px 32px rgba(0, 0, 0, 0.3), 0 32px 64px rgba(0, 0, 0, 0.35);

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", Menlo, monospace;
  --text-label: 11px;
  --text-caption: 12px;
  --text-body-sm: 13.5px;
  --text-body: 15px;
  --text-title: 18px;
  --text-display: clamp(2rem, 1.2rem + 3vw, 2.9rem);

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;

  --ease-out: cubic-bezier(0.2, 0, 0, 1);
  --duration-fast: 150ms;
  --duration-base: 240ms;
}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  :root { --color-bg-surface: #141a2d; --color-bg-raised: #1b2238; }
}

* { box-sizing: border-box; }
/* Component display rules (e.g. .card's flex) must never override the hidden attribute. */
[hidden] { display: none !important; }
html { color-scheme: dark; }
html, body { margin: 0; }
body {
  position: relative;
  isolation: isolate;
  background: var(--color-bg);
  color: var(--color-text-primary);
  font: var(--text-body) / 1.55 var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
/* Ambient colour glows behind everything; decorative only. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(60% 45% at 15% 0%, rgba(99, 102, 241, 0.3), transparent 70%),
    radial-gradient(45% 40% at 95% 12%, rgba(6, 182, 212, 0.18), transparent 70%),
    radial-gradient(55% 45% at 50% 108%, rgba(139, 92, 246, 0.22), transparent 70%);
}

a { color: var(--color-accent-text); text-decoration: none; }
a:hover { color: var(--color-text-primary); }
code, pre, .mono { font-family: var(--font-mono); }
code { font-size: 0.92em; color: var(--color-accent-text); }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 var(--space-4); }
:focus-visible { outline: 2px solid var(--color-focus-ring); outline-offset: 2px; border-radius: 8px; }

/* ---- header ---- */
.top {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(10, 14, 26, 0.72);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--color-border-subtle);
}
.top-row { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); height: 60px; }
.brand { display: flex; align-items: center; gap: var(--space-3); font-weight: 700; letter-spacing: 0.04em; }
.logo { width: 28px; height: 28px; display: block; filter: drop-shadow(0 4px 12px rgba(91, 79, 233, 0.45)); }
.net {
  font-size: var(--text-label);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-success-text);
  background: var(--color-success-subtle-bg);
  padding: 3px 9px;
  border-radius: 999px;
}

/* ---- buttons ---- */
button {
  font-family: inherit;
  font-size: var(--text-body-sm);
  font-weight: 600;
  cursor: pointer;
  color: #fff;
  background: var(--gradient-accent);
  border: none;
  border-radius: 12px;
  padding: 11px 20px;
  white-space: nowrap;
  box-shadow: 0 4px 14px rgba(91, 79, 233, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.22);
  transition-property: transform, box-shadow, background-color, color, opacity;
  transition-duration: var(--duration-fast);
  transition-timing-function: var(--ease-out);
}
button:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 8px 22px rgba(109, 63, 234, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.28); }
button:active:not(:disabled) { transform: scale(0.96); }
button.ghost {
  color: var(--color-text-primary);
  background: var(--color-bg-surface);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-border);
}
button.ghost:hover:not(:disabled) { color: var(--color-accent-text); box-shadow: var(--shadow-border-hover); transform: none; }
button:disabled { opacity: 0.45; cursor: not-allowed; transform: none; box-shadow: none; }

/* ---- inputs ---- */
input, select {
  font: inherit;
  font-size: var(--text-body-sm);
  color: var(--color-text-primary);
  background: rgba(255, 255, 255, 0.04);
  border: none;
  border-radius: 12px;
  padding: 11px 14px;
  min-width: 0;
  box-shadow: var(--shadow-border);
  transition: box-shadow var(--duration-fast) var(--ease-out);
}
input::placeholder { color: var(--color-text-disabled); }
input:focus-visible, select:focus-visible { outline: none; box-shadow: 0 0 0 2px var(--color-focus-ring); }
input:disabled { opacity: 0.45; cursor: not-allowed; }
input[type="number"] { font-family: var(--font-mono); }

/* ---- hero ---- */
.hero { padding: var(--space-12) 0 var(--space-4); }
.eyebrow { font-size: var(--text-label); font-weight: 600; letter-spacing: 0.2em; text-transform: uppercase; color: var(--color-text-secondary); margin: 0 0 var(--space-4); }
h1 { font-size: var(--text-display); line-height: 1.1; font-weight: 700; letter-spacing: -0.02em; margin: 0 0 var(--space-4); max-width: 820px; text-wrap: balance; }
.accent { background: var(--gradient-text); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: var(--color-accent-text); }
.lede { color: var(--color-text-secondary); max-width: 760px; margin: 0 0 var(--space-8); text-wrap: pretty; }
h2 { font-size: var(--text-title); font-weight: 600; letter-spacing: -0.01em; margin: 0; }
h3 { font-size: var(--text-body); font-weight: 600; margin: 0; }
section { padding: var(--space-6) 0 0; }
.hint { color: var(--color-text-secondary); font-size: var(--text-body-sm); margin: var(--space-1) 0 var(--space-3); max-width: 780px; }
section > .hint { margin-bottom: var(--space-4); }

/* ---- stat tiles ---- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: var(--space-3); margin-bottom: var(--space-4); }
.stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-4);
  border-radius: 18px;
  background: var(--color-bg-surface);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-border);
}
.stat .n { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-size: 24px; font-weight: 600; line-height: 1.2; }
.stat .l { font-size: var(--text-label); color: var(--color-text-secondary); text-transform: uppercase; letter-spacing: 0.05em; }
.meta { color: var(--color-text-secondary); font-size: var(--text-caption); overflow-wrap: anywhere; }
.meta a { font-family: var(--font-mono); }

/* ---- cards ---- */
.card {
  background: var(--color-bg-surface);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-elevated);
  border-radius: 24px;
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); padding-top: var(--space-4); }
.kv { display: flex; justify-content: space-between; align-items: baseline; gap: var(--space-3); font-size: var(--text-body-sm); padding: 6px 0; border-bottom: 1px solid var(--color-border-subtle); }
.kv:last-of-type { border-bottom: none; }
.kv span { color: var(--color-text-secondary); }
.kv b { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-weight: 600; text-align: right; }
.row { display: flex; gap: var(--space-2); }
.row input { flex: 1; }
.note { margin: 0; font-size: var(--text-body-sm); color: var(--color-warn-text); }
.note:empty { display: none; }
.next {
  margin: 0;
  font-size: var(--text-body-sm);
  color: var(--color-success-text);
  background: var(--color-success-subtle-bg);
  border-radius: 12px;
  padding: 10px 12px;
}
.next:empty { display: none; }
#apply-result.bad { color: var(--color-warn-text); background: var(--color-warn-subtle-bg); }
.status { min-height: 22px; font-size: var(--text-body-sm); color: var(--color-text-secondary); overflow-wrap: anywhere; margin: var(--space-3) 0 0; }
.banner {
  margin: var(--space-4) 0 0;
  padding: 12px 16px;
  border-radius: 14px;
  font-size: var(--text-body-sm);
  color: var(--color-warn-text);
  background: var(--color-warn-subtle-bg);
  box-shadow: 0 0 0 1px rgba(252, 211, 77, 0.25);
}

/* ---- score block (borrow card) ---- */
.score-card { --tier-bg: var(--color-tier-c-bg); --tier-fg: var(--color-tier-c-text); display: flex; align-items: center; gap: var(--space-4); padding: var(--space-2) 0 var(--space-3); }
.score-card[data-tier="A"] { --tier-bg: var(--color-tier-a-bg); --tier-fg: var(--color-tier-a-text); }
.score-card[data-tier="B"] { --tier-bg: var(--color-tier-b-bg); --tier-fg: var(--color-tier-b-text); }
.score-card[data-tier="S"] { --tier-bg: var(--color-tier-s-bg); --tier-fg: var(--color-tier-s-text); }
.tier-badge {
  flex: 0 0 auto;
  width: 60px;
  height: 60px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  font-size: 28px;
  font-weight: 700;
  background: var(--tier-bg);
  color: var(--tier-fg);
  box-shadow: 0 0 28px color-mix(in oklab, var(--tier-fg) 32%, transparent), inset 0 1px 0 rgba(255, 255, 255, 0.16);
}
.score-block { flex: 1 1 auto; min-width: 0; }
.score-number { display: flex; align-items: baseline; gap: 6px; font-family: var(--font-mono); font-size: 32px; font-weight: 600; line-height: 1; font-variant-numeric: tabular-nums; }
.score-number .out-of { font-size: 14px; font-weight: 400; color: var(--color-text-secondary); }
.score-caption { font-size: var(--text-caption); color: var(--color-text-secondary); margin-top: 4px; }
.score-track { margin-top: var(--space-2); height: 5px; border-radius: 999px; background: var(--color-border-subtle); overflow: hidden; }
.score-fill {
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--tier-fg), color-mix(in oklab, var(--tier-fg) 55%, var(--cyan-300)));
  box-shadow: 0 0 12px color-mix(in oklab, var(--tier-fg) 60%, transparent);
  transition: width 600ms var(--ease-out);
}

/* ---- apply / routes ---- */
.apply { margin-top: var(--space-4); box-shadow: 0 0 0 1px rgba(165, 180, 252, 0.35), var(--shadow-elevated); }
.routes { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.route {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
  box-shadow: var(--shadow-border);
}
.route .hint { margin: 0; }
.route .row { margin-top: auto; }
.route h3 { display: flex; gap: var(--space-2); align-items: center; flex-wrap: wrap; }
.route-num { display: inline-grid; place-items: center; width: 24px; height: 24px; border-radius: 8px; background: var(--gradient-accent); font-size: 12px; color: #fff; }


/* ---- how it works ---- */
.how { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
.how .card { gap: var(--space-3); }
.how p { margin: 0; font-size: var(--text-body-sm); color: var(--color-text-secondary); }
.how p b { color: var(--color-text-primary); }
.step-n { font-size: var(--text-label); font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-accent-text); }
.mono-sm {
  font-family: var(--font-mono);
  font-size: 12.5px !important;
  line-height: 1.7;
  color: var(--color-text-primary) !important;
  background: rgba(0, 0, 0, 0.22);
  border-radius: 12px;
  padding: 10px 12px;
}

/* ---- tags ---- */
.tag {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: var(--text-caption);
  font-weight: 600;
  background: var(--color-accent-subtle-bg);
  color: var(--color-accent-text);
}
.tag.ok { background: var(--color-success-subtle-bg); color: var(--color-success-text); }
.tag.warn { background: var(--color-warn-subtle-bg); color: var(--color-warn-text); }
.tag.sec { background: var(--color-tier-s-bg); color: var(--color-tier-s-text); }
.tag.tier-A { background: var(--color-tier-a-bg); color: var(--color-tier-a-text); }
.tag.tier-B { background: var(--color-tier-b-bg); color: var(--color-tier-b-text); }
.tag.tier-C { background: var(--color-tier-c-bg); color: var(--color-tier-c-text); }

/* ---- tables ---- */
.table-wrap {
  border-radius: 20px;
  overflow-x: auto;
  background: var(--color-bg-surface);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-border);
}
table { width: 100%; border-collapse: collapse; font-size: var(--text-body-sm); }
th, td { padding: 11px 14px; text-align: left; white-space: nowrap; border-bottom: 1px solid var(--color-border-subtle); }
th { font-size: var(--text-label); text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-text-secondary); font-weight: 600; }
tbody tr:last-child td { border-bottom: none; }
tbody tr { transition: background-color var(--duration-fast) var(--ease-out); }
tbody tr:hover { background: rgba(255, 255, 255, 0.03); }
td.num, th.num { text-align: right; font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
th.num { font-family: var(--font-sans); }
td.empty { color: var(--color-text-secondary); text-align: center; padding: var(--space-6); font-family: var(--font-sans); }

/* ---- footer ---- */
.foot { display: flex; justify-content: space-between; gap: var(--space-3); flex-wrap: wrap; color: var(--color-text-secondary); font-size: var(--text-caption); padding-top: var(--space-12); padding-bottom: var(--space-12); }

@media (max-width: 860px) {
  .grid2, .routes, .how { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .brand { white-space: nowrap; font-size: var(--text-body-sm); gap: var(--space-2); }
  .net { display: none; }
  #connect { padding: 9px 14px; }
  .stats { grid-template-columns: 1fr 1fr; gap: var(--space-2); }
  .stat { padding: var(--space-3); }
  .stat .n { font-size: 19px; }
  .hero { padding-top: var(--space-8); }
  .card { padding: var(--space-4); border-radius: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}