/* ─────────────────────────────────────────────
   Design tokens — matching smc.li palette
───────────────────────────────────────────── */
:root {
  --bg-primary:    #0a0f0d;
  --bg-secondary:  #0f1612;
  --bg-tertiary:   #151d18;
  --bg-card:       #111916;
  --bg-card-hover: #182420;

  --text-primary:  #f0fdf4;
  --text-secondary:#a7f3d0;
  --text-muted:    #6b8f7a;
  --text-dim:      #3d5a4a;

  --border-color:  #1e3a2f;
  --border-glow:   rgba(16,185,129,.3);

  --accent:        #10b981;
  --accent-bright: #34d399;
  --accent-glow:   rgba(16,185,129,.15);
  --accent-dim:    rgba(16,185,129,.08);

  --red:           #f87171;
  --red-dim:       rgba(248,113,113,.15);
  --yellow:        #fbbf24;
  --yellow-dim:    rgba(251,191,36,.12);
  --blue:          #60a5fa;

  --shadow-sm:  0 2px 8px rgba(0,0,0,.35);
  --shadow-md:  0 4px 20px rgba(0,0,0,.45);
  --shadow-lg:  0 8px 40px rgba(0,0,0,.55);
  --shadow-glow:0 0 40px rgba(16,185,129,.12);

  --font-sans: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --nav-height: 60px;
  --page-pad:   2rem;
}

/* ─────────────────────────────────────────────
   Reset
───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}
::selection { background: #065f46; color: var(--text-primary); }

/* ─────────────────────────────────────────────
   Background decorations
───────────────────────────────────────────── */
.bg-grid {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(16,185,129,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16,185,129,.03) 1px, transparent 1px);
  background-size: 60px 60px;
}
.bg-glow {
  position: fixed; z-index: 0; pointer-events: none;
  top: -50%; left: -50%; width: 200%; height: 200%;
  background:
    radial-gradient(circle at 20% 20%, rgba(16,185,129,.07) 0%, transparent 45%),
    radial-gradient(circle at 80% 80%, rgba(16,185,129,.04) 0%, transparent 40%);
  animation: glowMove 22s ease-in-out infinite alternate;
}
@keyframes glowMove {
  from { transform: translate(0,0); }
  to   { transform: translate(-4%,-4%); }
}

/* ─────────────────────────────────────────────
   Navigation
───────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-height); z-index: 1000;
  background: rgba(10,15,13,.88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border-color);
}
.nav-inner {
  max-width: 100%; height: 100%;
  padding: 0 var(--page-pad);
  display: flex; align-items: center; gap: 1.5rem;
}
.nav-logo {
  font-family: var(--font-mono); font-size: .95rem; font-weight: 700;
  color: var(--text-primary); text-decoration: none;
  transition: color .2s; white-space: nowrap;
}
.nav-logo:hover { color: var(--accent); }
.nav-logo-bracket { color: var(--accent); }

.nav-center {
  display: flex; align-items: center; gap: .6rem;
  font-family: var(--font-mono); font-size: .9rem;
}
.nav-title { color: var(--accent); font-weight: 600; }
.nav-sep { color: var(--text-dim); }
.nav-subtitle { color: var(--text-muted); }

.nav-right { margin-left: auto; }

.limits-badge {
  font-family: var(--font-mono); font-size: .72rem;
  color: var(--text-muted);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: .2rem .55rem;
  white-space: nowrap;
}

/* ─────────────────────────────────────────────
   Page layout
───────────────────────────────────────────── */
.page-wrap {
  position: relative; z-index: 1;
  margin-top: var(--nav-height);
  padding: 2rem var(--page-pad) 1rem;
  max-width: 1600px;
  margin-left: auto; margin-right: auto;
}

/* ─────────────────────────────────────────────
   SEO intro block
───────────────────────────────────────────── */
.seo-intro {
  padding: 1rem 0 .25rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 1.25rem;
}
.seo-intro h1 {
  font-family: var(--font-mono); font-size: .72rem; font-weight: 600;
  color: var(--text-dim); text-transform: uppercase; letter-spacing: .1em;
  margin-bottom: .35rem;
}
.seo-intro p {
  font-size: .8rem; color: var(--text-muted); line-height: 1.55;
}
.seo-intro p strong { color: var(--text-secondary); font-weight: 500; }
.seo-intro p a { color: var(--text-muted); text-decoration: underline; text-underline-offset: 3px; }
.seo-intro p a:hover { color: var(--accent); }

/* ─────────────────────────────────────────────
   Query panel
───────────────────────────────────────────── */
.query-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 1.5rem;
  display: flex; flex-direction: column; gap: 1.25rem;
  box-shadow: var(--shadow-md);
  margin-bottom: 1.5rem;
}

/* Top row: target + tabs + run */
.query-top-row {
  display: flex; align-items: center; gap: .75rem; flex-wrap: wrap;
}

.target-wrap {
  flex: 1 1 280px;
  display: flex; align-items: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0 .75rem;
  transition: border-color .2s, box-shadow .2s;
}
.target-wrap:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.target-prefix {
  font-family: var(--font-mono); font-size: .9rem;
  color: var(--accent); margin-right: .5rem; user-select: none;
}
.target-input {
  flex: 1; background: transparent; border: none; outline: none;
  font-family: var(--font-mono); font-size: .9rem;
  color: var(--text-primary); padding: .65rem 0;
  caret-color: var(--accent);
}
.target-input::placeholder { color: var(--text-dim); }

/* Type tabs */
.type-tabs {
  display: flex; gap: .3rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: .25rem;
}
.type-tab {
  font-family: var(--font-mono); font-size: .78rem; font-weight: 600;
  color: var(--text-muted);
  background: transparent; border: none; cursor: pointer;
  padding: .35rem .75rem; border-radius: 5px;
  transition: all .15s;
  letter-spacing: .02em;
}
.type-tab:hover { color: var(--text-secondary); background: var(--bg-tertiary); }
.type-tab.active {
  color: var(--bg-primary);
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
}

/* Run button */
.run-btn {
  display: flex; align-items: center; gap: .45rem;
  font-family: var(--font-mono); font-size: .85rem; font-weight: 700;
  padding: .65rem 1.4rem; border-radius: 8px;
  background: var(--accent); color: var(--bg-primary);
  border: none; cursor: pointer;
  transition: all .2s;
  white-space: nowrap;
  box-shadow: 0 0 20px var(--accent-glow);
  letter-spacing: .02em;
}
.run-btn:hover:not(:disabled) {
  background: var(--accent-bright);
  box-shadow: 0 0 30px rgba(16,185,129,.35);
  transform: translateY(-1px);
}
.run-btn:disabled {
  opacity: .4; cursor: not-allowed; box-shadow: none;
}
.run-spinner { display: flex; align-items: center; gap: .4rem; }
.spin { animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ─────────────────────────────────────────────
   Locations bar (search + chips)
───────────────────────────────────────────── */
.locations-bar {
  display: flex; flex-direction: column; gap: .6rem;
}

/* Search */
.loc-search-wrap {
  position: relative;
  display: flex; align-items: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0 .75rem;
  transition: border-color .2s, box-shadow .2s;
}
.loc-search-wrap:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.loc-search-icon {
  flex-shrink: 0; color: var(--text-muted);
  width: 15px; height: 15px; margin-right: .5rem;
}
.loc-search-input {
  flex: 1; background: transparent; border: none; outline: none;
  font-family: var(--font-sans); font-size: .875rem;
  color: var(--text-primary); padding: .6rem 0;
  caret-color: var(--accent);
}
.loc-search-input::placeholder { color: var(--text-dim); }

/* Dropdown */
.loc-search-dropdown {
  position: absolute; top: calc(100% + 6px); left: 0; right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  box-shadow: var(--shadow-lg);
  z-index: 200;
  max-height: 380px; overflow-y: auto;
  padding: .4rem 0;
}
.loc-search-dropdown::-webkit-scrollbar { width: 5px; }
.loc-search-dropdown::-webkit-scrollbar-track { background: transparent; }
.loc-search-dropdown::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }

.loc-suggest-group {
  padding: .3rem 0;
}
.loc-suggest-group + .loc-suggest-group {
  border-top: 1px solid var(--border-color);
  margin-top: .2rem; padding-top: .5rem;
}
.loc-suggest-label {
  font-family: var(--font-mono); font-size: .65rem; font-weight: 600;
  color: var(--text-dim); text-transform: uppercase; letter-spacing: .1em;
  padding: .1rem .9rem .35rem;
}
.loc-suggest-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: .45rem .9rem;
  cursor: pointer; gap: .75rem;
  transition: background .12s;
}
.loc-suggest-item:hover,
.loc-suggest-item.highlighted { background: var(--accent-dim); }

.loc-suggest-main { display: flex; align-items: center; gap: .5rem; flex: 1; min-width: 0; }
.loc-suggest-name { font-size: .875rem; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.loc-suggest-meta { font-family: var(--font-mono); font-size: .72rem; color: var(--text-muted); white-space: nowrap; }
.loc-suggest-count { font-family: var(--font-mono); font-size: .72rem; color: var(--accent); white-space: nowrap; }
.loc-suggest-drill {
  flex-shrink: 0;
  background: transparent; border: 1px solid var(--border-color);
  border-radius: 4px; padding: .15rem .45rem;
  font-size: .7rem; color: var(--text-muted); cursor: pointer;
  transition: all .12s;
}
.loc-suggest-drill:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }

/* Drill-down */
.loc-drill-header {
  display: flex; align-items: center; gap: .6rem;
  padding: .4rem .9rem .55rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: .3rem;
}
.loc-drill-back {
  background: transparent; border: none; cursor: pointer;
  color: var(--text-muted); padding: .15rem .35rem;
  border-radius: 4px; transition: all .12s; font-size: .8rem;
  display: flex; align-items: center; gap: .25rem;
}
.loc-drill-back:hover { color: var(--accent); background: var(--accent-dim); }
.loc-drill-title { font-weight: 600; font-size: .875rem; color: var(--text-primary); }
.loc-drill-all {
  margin-left: auto;
  background: transparent; border: 1px solid var(--border-color);
  border-radius: 4px; padding: .15rem .5rem;
  font-size: .72rem; color: var(--text-muted); cursor: pointer;
  transition: all .12s;
}
.loc-drill-all:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }
.loc-drill-notice {
  padding: .5rem .9rem; font-size: .8rem;
  color: var(--text-muted); font-style: italic;
}

/* Chips */
.loc-chips {
  display: flex; flex-wrap: wrap; gap: .4rem; align-items: center;
}
.loc-chip {
  display: inline-flex; align-items: center; gap: .35rem;
  font-family: var(--font-mono); font-size: .75rem;
  background: var(--accent-dim);
  border: 1px solid var(--border-glow);
  color: var(--accent-bright);
  border-radius: 20px; padding: .25rem .65rem;
}
.loc-chip-remove {
  background: transparent; border: none; cursor: pointer;
  color: var(--text-muted); font-size: .85rem; line-height: 1;
  padding: 0; display: flex; align-items: center;
  transition: color .12s;
}
.loc-chip-remove:hover { color: var(--red); }

/* ─────────────────────────────────────────────
   Locations grid
───────────────────────────────────────────── */
.locations-section {
  border-top: 1px solid var(--border-color);
  padding-top: 1.1rem;
}
.locations-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: .85rem;
}
.section-label {
  font-family: var(--font-mono); font-size: .72rem; font-weight: 600;
  color: var(--text-dim); text-transform: uppercase; letter-spacing: .1em;
}
.location-actions { display: flex; align-items: center; gap: .4rem; }
.link-btn {
  background: transparent; border: none; cursor: pointer;
  font-family: var(--font-mono); font-size: .72rem;
  color: var(--text-muted); padding: 0;
  transition: color .15s;
}
.link-btn:hover { color: var(--accent); }
.sep { color: var(--text-dim); font-size: .72rem; }

.locations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: .4rem;
}
.loading-locations {
  font-family: var(--font-mono); font-size: .8rem;
  color: var(--text-dim); padding: .5rem 0;
}

/* Group headers */
.loc-group-header {
  grid-column: 1 / -1;
  font-family: var(--font-mono); font-size: .68rem; font-weight: 600;
  color: var(--text-dim); text-transform: uppercase; letter-spacing: .1em;
  padding: .6rem 0 .2rem;
  border-top: 1px solid var(--border-color);
  margin-top: .3rem;
}
.loc-group-header:first-child { border-top: none; padding-top: 0; margin-top: 0; }

/* Location checkbox items */
.loc-item {
  display: flex; align-items: flex-start; gap: .5rem;
  padding: .5rem .65rem;
  border-radius: 7px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .12s, border-color .12s;
  user-select: none;
}
.loc-item:hover { background: var(--bg-tertiary); border-color: var(--border-color); }
.loc-item:has(input:checked) {
  background: var(--accent-dim);
  border-color: var(--border-glow);
}
.loc-item input[type="checkbox"] {
  accent-color: var(--accent);
  margin-top: .15rem; flex-shrink: 0;
  width: 14px; height: 14px;
  cursor: pointer;
}
.loc-text { display: flex; flex-direction: column; gap: .1rem; min-width: 0; }
.loc-name {
  font-size: .825rem; font-weight: 500;
  color: var(--text-primary); line-height: 1.2;
}
.loc-desc {
  font-family: var(--font-mono); font-size: .68rem;
  color: var(--text-muted); line-height: 1.3;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.loc-asn-tag {
  font-family: var(--font-mono); font-size: .63rem;
  color: var(--accent); background: var(--accent-dim);
  border-radius: 3px; padding: .05rem .25rem;
  display: inline-block; margin-top: .1rem;
}

/* ─────────────────────────────────────────────
   Options panel
───────────────────────────────────────────── */
.options-panel {
  border-top: 1px solid var(--border-color);
  padding-top: .9rem;
}
.options-summary {
  display: flex; align-items: center; gap: .45rem;
  font-family: var(--font-mono); font-size: .75rem; font-weight: 600;
  color: var(--text-muted); text-transform: uppercase; letter-spacing: .1em;
  cursor: pointer; list-style: none; user-select: none;
  transition: color .15s;
}
.options-summary::-webkit-details-marker { display: none; }
.options-summary:hover { color: var(--accent); }
details[open] .options-summary { color: var(--text-secondary); margin-bottom: .75rem; }

.options-grid {
  display: flex; flex-wrap: wrap; gap: .6rem;
}
.opt-group {
  display: flex; align-items: center; gap: .4rem; flex-wrap: wrap;
}
.opt-label {
  font-family: var(--font-mono); font-size: .75rem; font-weight: 600;
  color: var(--text-muted); white-space: nowrap;
}
.opt-input, .opt-select {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px; outline: none;
  font-family: var(--font-mono); font-size: .8rem;
  color: var(--text-primary); padding: .3rem .55rem;
  transition: border-color .2s;
}
.opt-input:focus, .opt-select:focus { border-color: var(--accent); }
.opt-input { width: 110px; }
.opt-select { background-image: none; cursor: pointer; }
option { background: var(--bg-card); }

/* ─────────────────────────────────────────────
   Results
───────────────────────────────────────────── */
.results-section {
  margin-bottom: 2rem;
}

.results-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: .75rem 0 .9rem; gap: 1rem; flex-wrap: wrap;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 1rem;
}
.results-meta { display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; }
.results-type-badge {
  font-family: var(--font-mono); font-size: .7rem; font-weight: 700;
  background: var(--accent-dim); border: 1px solid var(--border-glow);
  color: var(--accent); border-radius: 5px; padding: .2rem .5rem;
  text-transform: uppercase; letter-spacing: .06em;
}
.results-title {
  font-family: var(--font-mono); font-size: 1rem; font-weight: 600;
  color: var(--text-primary);
}
.results-time {
  font-family: var(--font-mono); font-size: .72rem;
  color: var(--text-muted);
}

.status-pill {
  font-family: var(--font-mono); font-size: .72rem; font-weight: 600;
  padding: .2rem .65rem; border-radius: 20px;
  background: var(--bg-tertiary); border: 1px solid var(--border-color);
  color: var(--text-muted);
  white-space: nowrap;
}
.status-pill.running { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }
.status-pill.done    { border-color: #065f46; color: var(--accent-bright); background: var(--accent-dim); }
.status-pill.error   { border-color: var(--red); color: var(--red); background: var(--red-dim); }

/* Results list */
.results-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

/* Individual result card */
.result-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  min-width: 0;          /* prevent grid bleed */
  transition: border-color .2s;
}
.result-card:hover { border-color: var(--border-glow); }

.result-card-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: .7rem 1rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  gap: .6rem;
}
.result-probe-name {
  font-weight: 600; font-size: .875rem; color: var(--text-primary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.result-probe-meta {
  font-family: var(--font-mono); font-size: .7rem;
  color: var(--text-muted); white-space: nowrap;
}
.result-status-dot {
  width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
  background: var(--text-dim);
}
.result-status-dot.ok      { background: var(--accent); box-shadow: 0 0 6px var(--accent-glow); }
.result-status-dot.warn    { background: var(--yellow); }
.result-status-dot.error   { background: var(--red); }
.result-status-dot.loading { background: var(--text-dim); animation: pulse 1.2s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity:.4; } 50% { opacity: 1; } }

.result-card-body { padding: .8rem 1rem; }

/* MTR / traceroute table */
.result-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.result-table {
  width: 100%; border-collapse: collapse;
  font-family: var(--font-mono); font-size: .75rem;
}
.result-table th {
  text-align: right; color: var(--text-dim);
  padding: .1rem .4rem; font-weight: 500;
  font-size: .65rem; text-transform: uppercase; letter-spacing: .06em;
  white-space: nowrap;
}
.result-table th:first-child,
.result-table th:nth-child(2) { text-align: left; }
.result-table td {
  padding: .22rem .4rem; color: var(--text-secondary);
  border-top: 1px solid rgba(30,58,47,.5);
  text-align: right; white-space: nowrap;
}
.result-table td:first-child { text-align: left; color: var(--text-muted); }
.result-table td.hop-host { color: var(--text-primary); }
.hop-host-name,
.hop-host-ip {
  max-width: 240px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.hop-host-ip { color: var(--text-muted); font-size: .7em; margin-top: .1rem; }
.result-table td.loss-hi  { color: var(--red); }
.result-table td.loss-med { color: var(--yellow); }
.result-table td.rtt-good { color: var(--accent); }
.result-table td.rtt-med  { color: var(--yellow); }
.result-table td.rtt-hi   { color: var(--red); }

/* Ping result */
.ping-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: .5rem;
}
.ping-stat { text-align: center; }
.ping-stat-label {
  font-family: var(--font-mono); font-size: .62rem; font-weight: 600;
  color: var(--text-dim); text-transform: uppercase; letter-spacing: .08em;
  display: block; margin-bottom: .15rem;
}
.ping-stat-value {
  font-family: var(--font-mono); font-size: 1.05rem; font-weight: 700;
  color: var(--accent-bright); display: block;
}
.ping-stat-unit {
  font-family: var(--font-mono); font-size: .65rem;
  color: var(--text-dim); margin-left: .2rem;
}

/* DNS result */
.dns-result { font-family: var(--font-mono); font-size: .8rem; }
.dns-answer { display: flex; gap: .75rem; padding: .2rem 0; flex-wrap: wrap; }
.dns-type   { color: var(--accent); min-width: 48px; }
.dns-ttl    { color: var(--text-dim); min-width: 60px; }
.dns-value  { color: var(--text-primary); }

/* HTTP result */
.http-result { font-size: .83rem; }
.http-status {
  font-family: var(--font-mono); font-size: 1.1rem; font-weight: 700;
  display: block; margin-bottom: .35rem;
}
.http-status.ok   { color: var(--accent); }
.http-status.warn { color: var(--yellow); }
.http-status.err  { color: var(--red); }
.http-meta {
  display: flex; gap: .75rem; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: .72rem; color: var(--text-muted);
}
.http-meta span { display: flex; gap: .3rem; align-items: center; }

/* Raw / pre output */
.result-pre {
  font-family: var(--font-mono); font-size: .75rem; line-height: 1.55;
  color: var(--text-secondary);
  overflow-x: auto; white-space: pre;
  max-height: 320px; overflow-y: auto;
}
.result-pre::-webkit-scrollbar { height: 5px; width: 5px; }
.result-pre::-webkit-scrollbar-track { background: transparent; }
.result-pre::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }

.result-error {
  font-family: var(--font-mono); font-size: .8rem;
  color: var(--red); background: var(--red-dim);
  border-radius: 6px; padding: .6rem .8rem;
}
.result-loading {
  font-family: var(--font-mono); font-size: .8rem;
  color: var(--text-dim); padding: .6rem 0;
  display: flex; align-items: center; gap: .5rem;
}

/* ─────────────────────────────────────────────
   Footer
───────────────────────────────────────────── */
.site-footer {
  position: relative; z-index: 1;
  text-align: center;
  padding: 1.2rem var(--page-pad);
  font-family: var(--font-mono); font-size: .72rem;
  color: var(--text-dim);
  border-top: 1px solid var(--border-color);
  display: flex; align-items: center; justify-content: center; gap: .5rem; flex-wrap: wrap;
}
.site-footer a { color: var(--text-muted); text-decoration: none; transition: color .15s; }
.site-footer a:hover { color: var(--accent); }
.footer-sep { color: var(--text-dim); }

/* ─────────────────────────────────────────────
   Scrollbar (global)
───────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

/* ─────────────────────────────────────────────
   Responsive (desktop first, graceful mobile)
───────────────────────────────────────────── */
@media (max-width: 900px) {
  :root { --page-pad: 1rem; }
  .query-top-row { flex-direction: column; align-items: stretch; }
  /* Reset flex-basis so it doesn't become a 280px HEIGHT in column layout */
  .target-wrap { flex: 0 0 auto; }
  .type-tabs { overflow-x: auto; }
  .results-list { grid-template-columns: 1fr; }
  .ping-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  :root { --page-pad: .75rem; }
  .nav-right  { display: none; }
  .nav-logo   { font-size: .8rem; }
  .nav-center { gap: .3rem; }
  .nav-title  { font-size: .85rem; }
  .nav-subtitle { font-size: .7rem; }
  .locations-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }

  /* Tighten up result cards on small screens */
  .result-card-header { padding: .55rem .75rem; }
  .result-card-body   { padding: .6rem .75rem; }
  .result-probe-name  { font-size: .8rem; }
  .result-probe-meta  { font-size: .65rem; }

  /* MTR table: hide low-priority columns, keep # | HOST | LOSS% | AVG | WORST */
  .result-table { font-size: .7rem; }
  .result-table th:nth-child(3),  /* ASN   */
  .result-table td:nth-child(3),
  .result-table th:nth-child(5),  /* SNT   */
  .result-table td:nth-child(5),
  .result-table th:nth-child(6),  /* RCV   */
  .result-table td:nth-child(6),
  .result-table th:nth-child(7),  /* BEST  */
  .result-table td:nth-child(7),
  .result-table th:nth-child(10), /* STDEV */
  .result-table td:nth-child(10),
  .result-table th:nth-child(11), /* JTTR  */
  .result-table td:nth-child(11) { display: none; }

  .hop-host-name, .hop-host-ip { max-width: 130px; }
}