/* Design tokens: dark NOC theme by default, clean daylight theme in light mode. */
:root {
  --bg-base: #06090e;
  --bg-card: rgba(13, 20, 31, 0.75);
  --border-card: rgba(30, 58, 86, 0.6);
  --accent-best: #00ff88;
  --accent-backup: #00e5ff;
  --accent-local: #ff5722;
  --accent-transit: #c084fc;
  --accent-invalid: #ff4d4d;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --bg-input: rgba(6, 9, 14, 0.8);
  --bg-pre: rgba(6, 9, 14, 0.85);
  --bg-topbar: rgba(6, 9, 14, 0.9);
  --bg-grid: rgba(30, 58, 86, 0.25);
  --bg-community: rgba(192, 132, 252, 0.15);
  --btn-submit-text: #04110a;
  --btn-clear-bg: rgba(255, 255, 255, 0.06);
  --btn-clear-hover: rgba(255, 255, 255, 0.12);
  --captcha-bg: #06090e;
  --captcha-modal-bg: rgba(13, 20, 31, 0.95);
  --captcha-modal-shadow: 0 12px 36px rgba(0, 0, 0, 0.6), 0 0 20px rgba(0, 229, 255, 0.2);
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", ui-monospace, "SFMono-Regular", monospace;
  --logo-height: 76px;
  --bg-blur: 1px;
  --bg-opacity: 0.35;
  --graph-node-bg: rgba(13, 20, 31, 0.95);
  --graph-node-text: var(--text-main);
  --graph-node-border: var(--border-card);
  --graph-shadow: rgba(0, 0, 0, 0.5);
  --notice-error-bg: rgba(255, 77, 77, 0.12);
  --notice-error-border: rgba(255, 77, 77, 0.6);
  --notice-error-text: #ffd0d0;
  --notice-mock-bg: rgba(255, 87, 34, 0.12);
  --notice-mock-border: rgba(255, 87, 34, 0.5);
  --notice-mock-text: #ffccbc;
  color-scheme: dark;
}

html[data-theme="light"] {
  --bg-base: #f8fafc;
  --bg-card: rgba(255, 255, 255, 0.90);
  --border-card: rgba(203, 213, 225, 0.85);
  --accent-best: #059669;
  --accent-backup: #0284c7;
  --accent-local: #ea580c;
  --accent-transit: #7c3aed;
  --accent-invalid: #dc2626;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --bg-input: #ffffff;
  --bg-pre: #ffffff;
  --bg-topbar: rgba(255, 255, 255, 0.92);
  --bg-grid: rgba(148, 163, 184, 0.25);
  --bg-community: rgba(124, 58, 237, 0.12);
  --btn-submit-text: #ffffff;
  --btn-clear-bg: rgba(0, 0, 0, 0.05);
  --btn-clear-hover: rgba(0, 0, 0, 0.1);
  --captcha-bg: #f8fafc;
  --captcha-modal-bg: rgba(255, 255, 255, 0.98);
  --captcha-modal-shadow: 0 12px 36px rgba(0, 0, 0, 0.12), 0 0 20px rgba(2, 132, 199, 0.12);
  --graph-node-bg: #ffffff;
  --graph-node-text: #0f172a;
  --graph-node-border: #cbd5e1;
  --graph-shadow: rgba(0, 0, 0, 0.08);
  --notice-error-bg: #fee2e2;
  --notice-error-border: #ef4444;
  --notice-error-text: #991b1b;
  --notice-mock-bg: #fff7ed;
  --notice-mock-border: #fb923c;
  --notice-mock-text: #9a3412;
  color-scheme: light;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 0 0 env(safe-area-inset-bottom, 0px);
  background: var(--bg-base);
  color: var(--text-main);
  font: 15px/1.5 var(--font-sans);
  min-height: 100vh;
  position: relative;
}

body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-image:
    linear-gradient(var(--bg-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--bg-grid) 1px, transparent 1px),
    url("/assets/nogglass.png");
  background-size: 48px 48px, 48px 48px, cover;
  background-position: center, center, center;
  background-repeat: repeat, repeat, no-repeat;
  filter: blur(var(--bg-blur, 1px));
  transform: scale(1.005);
  opacity: var(--bg-opacity, 0.35);
  pointer-events: none;
  z-index: -1;
}

main { padding: 24px 16px 48px; max-width: 1280px; margin: 0 auto; }

/* --- top bar --- */
.topbar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  padding: calc(12px + env(safe-area-inset-top, 0px)) 24px 12px;
  border-bottom: 1px solid var(--border-card);
  background: var(--bg-topbar);
  backdrop-filter: blur(12px);
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 10;
}

.brand { display: flex; align-items: center; gap: 16px; }
.brand-logo {
  height: var(--logo-height, 76px);
  width: auto;
  max-width: min(80vw, 600px);
  display: block;
  object-fit: contain;
}
.brand-tagline, .meta { color: var(--text-muted); font-size: 15px; }

.locales { display: flex; gap: 4px; }
.locales a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 13px;
  border: 1px solid transparent;
}
.locales a[aria-current="true"] {
  color: var(--text-main);
  border-color: var(--border-card);
  background: var(--bg-card);
}

/* --- form --- */
.query {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-end;
  padding: 16px;
  border: 1px solid var(--border-card);
  border-radius: 12px;
  background: var(--bg-card);
}
.field { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--text-muted); }
.field-grow { flex: 1 1 260px; }
select, input {
  font: 14px var(--font-mono);
  color: var(--text-main);
  background: var(--bg-input);
  border: 1px solid var(--border-card);
  border-radius: 8px;
  padding: 9px 10px;
  min-width: 0;
}
input:focus, select:focus, button:focus-visible {
  outline: 2px solid var(--accent-backup);
  outline-offset: 1px;
}
input:disabled, select:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
button {
  font: 600 14px var(--font-sans);
  color: var(--btn-submit-text, #04110a);
  background: var(--accent-best);
  border: 0;
  border-radius: 8px;
  padding: 10px 20px;
  cursor: pointer;
  transition: opacity 0.15s ease, background 0.15s ease;
}
button[disabled] { opacity: 0.6; cursor: progress; }

.form-actions {
  display: flex;
  gap: 8px;
  align-items: center;
}
.btn-clear {
  background: var(--btn-clear-bg);
  color: var(--text-muted);
  border: 1px solid var(--border-card);
}
.btn-clear:hover {
  background: var(--btn-clear-hover);
  color: var(--text-main);
  border-color: var(--border-card);
}

/* --- notices --- */
.notice {
  margin: 16px 0 0;
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid var(--border-card);
  font-size: 14px;
}
.notice-mock {
  background: var(--notice-mock-bg);
  border-color: var(--notice-mock-border);
  color: var(--notice-mock-text);
  font-weight: 500;
}
.notice-error {
  background: var(--notice-error-bg);
  border-color: var(--notice-error-border);
  color: var(--notice-error-text);
  font-weight: 600;
}

html[data-theme="light"] .notice-error,
html[data-theme="light"] #error {
  background: #fee2e2 !important;
  border-color: #ef4444 !important;
  color: #991b1b !important;
  font-weight: 600 !important;
}

html[data-theme="light"] .notice-mock,
html[data-theme="light"] #mock-warning {
  background: #fff7ed !important;
  border-color: #fb923c !important;
  color: #9a3412 !important;
  font-weight: 600 !important;
}

/* --- panels --- */
.panel {
  margin-top: 20px;
  padding: 16px;
  border: 1px solid var(--border-card);
  border-radius: 12px;
  background: var(--bg-card);
}
.panel h2 { margin: 0 0 12px; font-size: 14px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.08em; }

#graph { width: 100%; overflow-x: auto; }
#graph svg { display: block; min-width: 520px; }

.table-scroll { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font: 13px var(--font-mono); }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border-card); white-space: nowrap; }
th { color: var(--text-muted); font: 600 12px var(--font-sans); text-transform: uppercase; letter-spacing: 0.06em; }
tr[data-best="true"] td { color: var(--accent-best); }
td.unknown { color: var(--text-muted); font-style: italic; }

td.cell-communities {
  white-space: normal;
  min-width: 260px;
}
.communities-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.badge { padding: 2px 8px; border-radius: 999px; font-size: 12px; border: 1px solid currentColor; }
.badge-valid { color: var(--accent-best); }
.badge-invalid { color: var(--accent-invalid); }
.badge-not_found, .badge-not_checked { color: var(--text-muted); }

.community { display: inline-block; margin: 0; padding: 2px 8px; border-radius: 999px; background: var(--bg-community); color: var(--accent-transit); font-size: 12px; }

pre {
  margin: 0;
  padding: 12px;
  overflow-x: auto;
  background: var(--bg-pre);
  border: 1px solid var(--border-card);
  border-radius: 8px;
  font: 12.5px/1.5 var(--font-mono);
  color: var(--text-main);
}

.raw-best-route {
  color: var(--accent-best);
  font-weight: 500;
}

.raw-best-badge {
  display: inline-block;
  background: var(--accent-best);
  color: var(--btn-submit-text);
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 700;
  padding: 1px 7px;
  border-radius: 4px;
  margin-left: 8px;
  vertical-align: middle;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

footer {
  padding: 16px;
  border-top: 1px solid var(--border-card);
  color: var(--text-muted);
  font-size: 13px;
  display: flex;
  gap: 8px;
  align-items: baseline;
  flex-wrap: wrap;
}
footer a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
footer a:hover {
  color: var(--accent);
  text-decoration: underline;
}

/* Animation is decoration: a visitor who asked for less motion gets a solid
   line instead of a pulsing one. */
@media (prefers-reduced-motion: no-preference) {
  .edge-best { animation: pulse 2.4s ease-in-out infinite; }
  @keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.55; }
  }
}

@media (max-width: 640px) {
  .query { flex-direction: column; align-items: stretch; }
  button { width: 100%; }
}

/* --- global view --- */
.verdict { margin: 0 0 12px; font-size: 14px; }
.verdict-agrees { color: var(--accent-best); }
.verdict-mismatch, .verdict-not_seen_by_router { color: var(--accent-invalid); }
.verdict-not_announced_globally { color: var(--accent-local); }
.verdict-unknown { color: var(--text-muted); }

.facts { display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; margin: 0; font-size: 13px; }
.facts dt { color: var(--text-muted); }
.facts dd { margin: 0; font-family: var(--font-mono); }

/* A session that is not established is the reason someone opened the page. */
tr[data-established="false"] td { color: var(--accent-invalid); }

/* --- captcha modal --- */
.captcha-modal {
  border: 1px solid var(--border-card);
  border-radius: 12px;
  background: var(--captcha-modal-bg);
  backdrop-filter: blur(16px);
  color: var(--text-main);
  padding: 0;
  max-width: 360px;
  width: 90vw;
  box-shadow: var(--captcha-modal-shadow);
}
.captcha-modal::backdrop {
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
}
.captcha-box {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.captcha-box h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-main);
}
.captcha-desc {
  margin: 0;
  font-size: 13px;
  color: var(--text-muted);
}
.captcha-visual {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--captcha-bg);
  padding: 8px;
  border-radius: 8px;
  border: 1px solid var(--border-card);
  justify-content: center;
}
.captcha-svg {
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: 4px;
}
.captcha-svg svg {
  display: block;
  max-width: 100%;
  height: auto;
}
.btn-refresh {
  background: transparent;
  border: 1px solid var(--border-card);
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  font-size: 18px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.2s ease;
}
.btn-refresh:hover {
  color: var(--accent-backup);
  border-color: var(--accent-backup);
  background: rgba(0, 229, 255, 0.1);
}
.captcha-input-row {
  display: flex;
  gap: 8px;
}
#captcha-input {
  flex: 1;
  text-align: center;
  letter-spacing: 4px;
  font-family: var(--font-mono);
  font-size: 18px;
  text-transform: uppercase;
}
.btn-submit {
  padding: 8px 16px;
}
.captcha-error-text {
  color: var(--accent-invalid);
  font-size: 12px;
  margin: 0;
}