/* OrbitNet — dark, clean, no-nonsense styles */

:root {
  --paper: #16161a;
  --paper-2: #1e1e24;
  --ink: #e8e8ea;
  --muted: #9a9aa2;
  --line: #2c2c33;
  --accent: #6ecfa0;
  --accent-dim: #14382a;
  --card: #1c1c21;
  --danger: #f28b82;
  --warning: #f5c66b;
  --radius: 8px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html {
  background: var(--paper);
  color-scheme: dark;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
}

a { color: var(--accent); }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }

.wrap { width: min(1080px, calc(100% - 32px)); margin: 0 auto; }

/* Header */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--ink);
}
.brand-mark { display: none; }
.nav { display: flex; align-items: center; gap: 18px; font-size: .9rem; }
.nav a { text-decoration: none; color: var(--ink); }
.nav a:hover { text-decoration: underline; }
.status { font-size: .8rem; color: var(--muted); }

/* Page head */
.page-head { padding: 34px 0 8px; }
.page-head h1 { font-size: 1.9rem; margin: 8px 0; line-height: 1.2; }
.page-head p { color: var(--muted); margin: 0; max-width: 680px; }
.page-head .tagline strong { color: var(--accent); }

/* Your IP widget */
.ip-card {
  margin-top: 22px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px 32px;
  align-items: center;
  justify-content: space-between;
}
.ip-card .ip-main { min-width: 0; }
.ip-card .ip-title { font-weight: 700; margin: 0 0 4px; }
.ip-card .ip-value { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 1.5rem; font-weight: 700; }
.ip-card .ip-meta { margin: 6px 0 0; color: var(--muted); font-size: .88rem; }
.ip-card .ip-error { color: var(--danger); font-size: .9rem; }

.ip-geo {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px 28px;
  margin: 0;
  flex: 1 1 320px;
}
.ip-geo .ip-geo-item { min-width: 0; }
.ip-geo dt {
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--muted);
  font-weight: 700;
  margin: 0;
}
.ip-geo dd { margin: 3px 0 0; font-size: .92rem; color: var(--ink); word-break: break-word; }

/* Search */
.searchbox {
  margin-top: 22px;
  display: flex;
  gap: 8px;
  max-width: 640px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}
.searchbox .magnify, .searchbox .key { display: none; }
.searchbox input { min-width: 0; flex: 1; border: 0; outline: 0; background: transparent; padding: 8px; color: var(--ink); }
.searchbox button { border: 0; border-radius: 6px; padding: 9px 16px; background: var(--accent); color: #0d1310; font-weight: 600; }

/* Tools section */
section#tools { margin-top: 34px; }
.section-head h2 { font-size: 1.4rem; margin: 0 0 6px; }
.section-head p { color: var(--muted); margin: 0 0 16px; max-width: 640px; }
.category-links { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 18px; }
.category-links a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  color: var(--ink);
  text-decoration: none;
  font-size: .85rem;
  transition: border-color .2s ease, background-color .2s ease, color .2s ease;
}
.category-links a:hover,
.category-links a:focus-visible {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: var(--accent);
  outline: none;
}
.category-links a:focus-visible { box-shadow: 0 0 0 2px var(--accent); }
.category-links .filter-icon { font-size: .9rem; line-height: 1; }

.layout { display: grid; grid-template-columns: 220px 1fr; gap: 20px; align-items: start; }

/* Filters sidebar */
.filters { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; position: sticky; top: 16px; }
.filters h3 { margin: 0 0 12px; font-size: .95rem; }
.filter-list { display: grid; gap: 4px; }
.filter-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  text-align: left;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--ink);
  padding: 7px 10px;
  font-size: .88rem;
}
.filter-btn:hover { background: var(--paper-2); }
.filter-btn.active { background: var(--accent-dim); color: var(--accent); font-weight: 600; }
.filter-btn .filter-icon { width: 20px; font-size: .9rem; text-align: center; }
.filter-count { margin-left: auto; font-size: .78rem; opacity: .7; }
.filter-btn.active .filter-count { opacity: 1; }
.filter-note { margin: 14px 0 0; padding-top: 12px; border-top: 1px solid var(--line); color: var(--muted); font-size: .8rem; }

/* Tools area */
.tools-area { min-width: 0; }
.tools-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin: 0 0 14px; }
.results-count { font-size: .88rem; color: var(--muted); }
.sort { border: 1px solid var(--line); border-radius: 6px; padding: 7px 10px; background: var(--card); color: var(--ink); font-size: .85rem; }

.tool-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.tool-card-wrap { position: relative; display: flex; min-width: 0; }
.tool-card-wrap .tool-card { flex: 1; padding-right: 44px; }
.fav-btn {
  position: absolute;
  top: 9px;
  right: 9px;
  z-index: 1;
  width: 30px;
  height: 30px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  color: var(--muted);
  font-size: 1rem;
  line-height: 1;
}
.fav-btn:hover, .fav-btn:focus-visible { color: var(--warning); border-color: var(--warning); }
.fav-btn.active { color: var(--warning); border-color: var(--warning); background: rgba(245, 198, 107, .12); }
.tool-card {
  min-width: 0;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
  color: inherit;
  text-decoration: none;
  transition: border-color .2s ease, background-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.tool-card:hover,
.tool-card:focus-visible {
  border-color: var(--accent);
  background: var(--paper-2);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(110, 207, 160, 0.15);
  outline: none;
}
.tool-card:focus-visible { box-shadow: 0 0 0 2px var(--accent); }
.tool-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.tool-icon { display: none; }
.pill { border: 1px solid var(--line); border-radius: 999px; padding: 3px 8px; color: var(--muted); font-size: .72rem; }
.tool-card h3 { margin: 10px 0 6px; font-size: 1.05rem; }
.tool-card p { margin: 0; color: var(--muted); font-size: .88rem; flex: 1; }

.empty { display: none; padding: 40px 20px; text-align: center; border: 1px dashed var(--line); border-radius: var(--radius); color: var(--muted); }
.empty strong { display: block; color: var(--ink); margin-bottom: 6px; }

/* About */
.below { margin: 56px 0 0; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.info-card { padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); }
.info-card .info-icon { display: none; }
.info-card h2 { margin: 0 0 8px; font-size: 1.2rem; }
.info-card p { margin: 0; color: var(--muted); font-size: .92rem; }
#faq { grid-template-columns: 1fr; }
.faq-list { margin: 0; }
.faq-list dt { margin: 14px 0 4px; font-weight: 600; }
.faq-list dt:first-child { margin-top: 0; }
.faq-list dd { margin: 0; color: var(--muted); font-size: .92rem; }

/* Footer */
.footer { margin-top: 56px; border-top: 1px solid var(--line); padding: 22px 0 34px; display: flex; justify-content: space-between; gap: 20px; color: var(--muted); font-size: .82rem; }
.footer strong { color: var(--ink); }
.footer-links { display: flex; gap: 17px; }
.footer a { text-decoration: none; }
.footer a:hover { text-decoration: underline; }

/* Accessibility */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* ------------------------------------------------ */
/* Shared tool-page styles (used by /tools/*)        */
/* ------------------------------------------------ */
.tool-page { padding: 34px 0 0; }
.tool-header { margin-bottom: 30px; }
.tool-header h1 { font-size: 1.9rem; margin: 8px 0; }
.tool-header .breadcrumb { font-size: .85rem; color: var(--muted); margin-bottom: 8px; }
.tool-header .breadcrumb a { text-decoration: underline; text-underline-offset: 2px; }
.tool-header p { color: var(--muted); max-width: 700px; }

.tool-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.tool-panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; margin-bottom: 20px; }
.tool-panel h2 { font-size: 1.15rem; margin: 0 0 16px; }

.input-group { margin-bottom: 18px; }
.input-group label { display: block; font-weight: 600; margin-bottom: 6px; font-size: .9rem; }
.input-group input, .input-group select, .input-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
  font-size: 1rem;
}
.input-group input:focus, .input-group select:focus, .input-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(110, 207, 160, .35);
}

/* Keyboard focus must not rely on colour alone. */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.btn:focus-visible,
.mode-btn:focus-visible,
.cat-btn:focus-visible,
.filter-btn:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.input-group small { display: block; margin-top: 5px; color: var(--muted); font-size: .8rem; }

.btn {
  display: inline-block;
  padding: 10px 20px;
  background: var(--accent);
  color: #0d1310;
  border: 0;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  font-size: .92rem;
}
.btn:hover { filter: brightness(1.1); }
.btn-secondary { background: var(--paper-2); color: var(--ink); border: 1px solid var(--line); }
.btn-success { background: var(--accent); color: #0d1310; }

.result-box { background: var(--paper); border: 1px solid var(--line); border-radius: 8px; padding: 14px; margin-bottom: 12px; }
.result-box.highlight { border-color: var(--accent); }
.result-label { font-size: .78rem; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; font-weight: 700; margin-bottom: 4px; }
.result-value { font-size: 1.2rem; font-weight: 700; color: var(--ink); word-break: break-all; }
.result-value.large { font-size: 1.7rem; color: var(--accent); }
.result-value.warning {
  padding: 11px 14px;
  border-radius: 6px;
  margin-bottom: 16px;
  color: var(--warning);
  background: rgba(245,198,107,.12);
  border: 1px solid rgba(245,198,107,.4);
}
.result-sub { font-size: .85rem; color: var(--muted); margin-top: 4px; }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }

.error, .success, .info { padding: 11px 14px; border-radius: 6px; margin-bottom: 16px; font-size: .9rem; }
.error { color: var(--danger); background: rgba(242,139,130,.12); border: 1px solid rgba(242,139,130,.4); }
.success { color: var(--accent); background: rgba(110,207,160,.12); border: 1px solid rgba(110,207,160,.4); }
.info { color: #8ab4f8; background: rgba(138,180,248,.12); border: 1px solid rgba(138,180,248,.4); }

.info-section { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin-top: 24px; }
.info-section h2 { font-size: 1.25rem; margin: 0 0 12px; }
.info-section h3 { font-size: 1.05rem; margin: 18px 0 8px; }
.info-section h3:first-of-type { margin-top: 12px; }
.info-section p { margin: 0 0 10px; color: var(--muted); font-size: .9rem; line-height: 1.6; }
.info-section ul { margin: 10px 0; padding-left: 20px; color: var(--muted); font-size: .9rem; }

.mode-btn, .cat-btn {
  padding: 10px; border: 1px solid var(--line); border-radius: 6px; background: var(--paper); color: var(--ink); font-weight: 600; cursor: pointer; font-size: .85rem;
}
.mode-btn.active, .cat-btn.active { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }

/* Tool-specific components */
.mode-selector, .category-selector { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-bottom: 20px; }
.category-selector { grid-template-columns: repeat(3, 1fr); }

.input-row { display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: end; }
.input-group input:disabled { opacity: .5; cursor: not-allowed; background: var(--paper-2); }

.captcha-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.captcha-row img {
  display: block;
  width: 160px;
  height: 56px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--card);
  cursor: pointer;
}
.captcha-row .btn { padding: 8px 12px; }

.textarea-wrapper { flex: 1; display: flex; flex-direction: column; }
.json-textarea, .text-textarea {
  flex: 1; width: 100%; padding: 12px; border: 1px solid var(--line); border-radius: 6px;
  background: var(--paper); color: var(--ink); font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: .9rem; resize: vertical; min-height: 280px; line-height: 1.5;
}
.toolbar, .controls, .stats { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; align-items: center; }
.controls { margin-bottom: 12px; }
.stats { gap: 18px; font-size: .8rem; color: var(--muted); }
.stats span { font-weight: 700; color: var(--ink); }

.status-box { margin-top: 14px; padding: 11px 14px; border-radius: 6px; font-size: .88rem; }
.status-box.success { background: rgba(110,207,160,.12); border: 1px solid rgba(110,207,160,.4); color: var(--accent); }
.status-box.error { background: rgba(242,139,130,.12); border: 1px solid rgba(242,139,130,.4); color: var(--danger); }
.status-box.warning { background: rgba(245,198,107,.12); border: 1px solid rgba(245,198,107,.4); color: var(--warning); }
.status-box.info { background: rgba(138,180,248,.10); border: 1px solid rgba(138,180,248,.35); color: var(--muted); }
.error-detail { font-family: monospace; margin-top: 8px; font-size: .8rem; opacity: .9; }

.uuid-display { background: var(--paper); border: 1px solid var(--accent); border-radius: 8px; padding: 18px; margin-bottom: 18px; text-align: center; }
.uuid-value { font-size: 1.5rem; font-weight: 700; font-family: ui-monospace, Menlo, Consolas, monospace; color: var(--accent); word-break: break-all; margin: 10px 0; user-select: all; }
.uuid-label { font-size: .78rem; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; font-weight: 700; }
.uuid-list { background: var(--paper); border: 1px solid var(--line); border-radius: 8px; padding: 14px; max-height: 400px; overflow-y: auto; }
.uuid-item { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: .9rem; padding: 9px; margin: 4px 0; background: var(--card); border-radius: 6px; display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.uuid-text { flex: 1; user-select: all; word-break: break-all; }
.uuid-copy { background: transparent; border: 1px solid var(--line); color: var(--muted); padding: 5px 11px; border-radius: 5px; cursor: pointer; font-size: .8rem; white-space: nowrap; }

.loading { text-align: center; padding: 40px 20px; color: var(--muted); }

.equation-preview { background: var(--paper); border: 1px solid var(--line); padding: 14px; border-radius: 6px; text-align: center; font-size: 1.2rem; font-weight: 700; margin-bottom: 18px; }

.formula-box { background: var(--paper); border-radius: 6px; padding: 14px; margin: 0 0 12px; text-align: center; }
.formula { font-size: 1.2rem; font-weight: 700; font-family: Georgia, serif; margin: 6px 0; }
.formula-desc { font-size: .85rem; color: var(--muted); }

.conversion-arrow { text-align: center; font-size: 1.2rem; margin: 8px 0; color: var(--muted); }

.diagram { background: var(--paper); border-radius: 6px; padding: 16px; margin: 18px 0; text-align: center; font-family: ui-monospace, Menlo, Consolas, monospace; font-size: .82rem; line-height: 1.7; color: var(--muted); overflow-x: auto; }

.info-section code { background: var(--card); border: 1px solid var(--line); padding: 1px 5px; border-radius: 4px; font-family: monospace; }

/* Responsive */
@media (max-width: 850px) {
  .layout { grid-template-columns: 1fr; }
  .filters { position: static; }
  .filter-list { display: flex; flex-wrap: wrap; }
  .filter-btn { width: auto; }
  .tool-layout { grid-template-columns: 1fr; }
}

@media (max-width: 580px) {
  .wrap { width: min(1080px, calc(100% - 24px)); }
  .nav .optional { display: none; }
  .tool-grid { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .category-selector { grid-template-columns: repeat(2, 1fr); }
  .below { grid-template-columns: 1fr; }
  .footer { display: block; }
  .footer-links { margin-top: 10px; flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .tool-card:hover,
  .tool-card:focus-visible { transform: none; }
}
/* Shared data/code presentation used by developer and network tools. */
.data-table { width: 100%; border-collapse: collapse; font-size: .84rem; margin-top: 8px; }
.data-table th, .data-table td { text-align: left; padding: 7px 9px; border-bottom: 1px solid var(--line); vertical-align: top; }
.data-table th { color: var(--muted); font-weight: 600; white-space: nowrap; }
.data-table td { font-family: ui-monospace, Menlo, Consolas, monospace; word-break: break-word; }
.data-table tr:last-child td { border-bottom: 0; }
.mono { font-family: ui-monospace, Menlo, Consolas, monospace; word-break: break-all; }
.code-block { margin: 8px 0 0; padding: 12px; background: var(--paper); border: 1px solid var(--line); border-radius: 6px; overflow: auto; white-space: pre; font-family: ui-monospace, Menlo, Consolas, monospace; font-size: .82rem; line-height: 1.55; }
.result-box + .result-box { margin-top: 10px; }