:root {
  --font: 'Courier New', Courier, ui-monospace, monospace;
  --font-ip: ui-monospace, 'SF Mono', 'Cascadia Mono', Consolas, monospace;
  --dash: 1px dotted;
  --r: 8px;
  --t: 0.22s ease;
}

[data-theme='dark'] {
  --bg: #080b10;
  --surface: #0e131b;
  --surface2: #131a24;
  --border: #3a5570;
  --border-dim: #1c2836;
  --text: #f0f6fc;
  --muted: #8ba3bc;
  --accent: #7dd8ff;
  --accent2: #d4b0ff;
  --green: #5eff9a;
  --yellow: #ffd060;
  --red: #ff8a8a;
  --ip: #7dffb8;
  --ip-bg: rgba(125, 255, 184, 0.12);
  --tooltip-bg: #162030;
  --map-filter: none;
  --hover-glow: rgba(125, 216, 255, 0.12);
}

[data-theme='light'] {
  --bg: #e8edf4;
  --surface: #ffffff;
  --surface2: #f5f8fc;
  --border: #6a8aab;
  --border-dim: #d4dde8;
  --text: #0a1520;
  --muted: #3d556d;
  --accent: #0055aa;
  --accent2: #6d28d9;
  --green: #0a7a42;
  --yellow: #a16207;
  --red: #c81e1e;
  --ip: #006b45;
  --ip-bg: rgba(0, 107, 69, 0.1);
  --tooltip-bg: #ffffff;
  --map-filter: saturate(0.85);
  --hover-glow: rgba(0, 85, 170, 0.1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 19px; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  line-height: 1.5;
  background-image: radial-gradient(ellipse 70% 50% at 50% -10%, rgba(94, 196, 255, 0.07), transparent);
}

.sym, .sym-sm, .box-sym { opacity: 0.85; }

.box-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1.1rem;
}

.site-header {
  margin-bottom: 1rem;
}

.box-header:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 20px var(--hover-glow);
}

.logo {
  display: flex;
  align-items: center;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.2rem 0.35rem;
  border-radius: 6px;
  transition: background var(--t), transform var(--t);
  flex-shrink: 0;
}

.logo-mark {
  display: block;
  height: 1.85rem;
  width: auto;
}

.logo-bracket { fill: var(--border); }
.logo-three { fill: var(--ip); transition: fill var(--t); }
.logo-dot { fill: var(--accent); }
.logo-vu { fill: var(--muted); font-weight: 400; transition: fill var(--t); }

.logo:hover {
  background: var(--hover-glow);
  transform: translateY(-1px);
}

.logo:hover .logo-three { fill: var(--accent); }
.logo:hover .logo-vu { fill: var(--text); }

.top-right {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-left: auto;
  flex-shrink: 0;
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.lang-dropdown {
  position: relative;
  opacity: 0.75;
  transition: opacity var(--t);
}

.lang-dropdown:hover,
.lang-dropdown.is-open {
  opacity: 1;
}

.lang-dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  font-family: var(--font);
  font-size: 0.85rem;
  line-height: 1;
  padding: 0.35rem 0.5rem;
  border: var(--dash) var(--border-dim);
  border-radius: 6px;
  background: var(--surface2);
  color: var(--text);
  cursor: pointer;
  transition: all var(--t);
}

.lang-dropdown-toggle:hover,
.lang-dropdown.is-open .lang-dropdown-toggle {
  border-color: var(--accent);
  background: var(--hover-glow);
}

.lang-dropdown-caret {
  font-size: 0.55rem;
  color: var(--muted);
  transition: transform var(--t);
}

.lang-dropdown.is-open .lang-dropdown-caret {
  transform: rotate(180deg);
  color: var(--accent);
}

.lang-dropdown-menu {
  position: absolute;
  top: calc(100% + 0.35rem);
  right: 0;
  min-width: 2.4rem;
  padding: 0.25rem;
  border: var(--dash) var(--border);
  border-radius: 6px;
  background: var(--surface);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.lang-dropdown-menu[hidden] {
  display: none;
}

.lang-option {
  font-family: var(--font);
  font-size: 0.85rem;
  line-height: 1;
  padding: 0.35rem 0.45rem;
  border: none;
  border-radius: 4px;
  background: transparent;
  cursor: pointer;
  transition: background var(--t), transform var(--t);
}

.lang-option:hover {
  background: var(--hover-glow);
  transform: scale(1.08);
}

.lang-option.active {
  background: var(--surface2);
  outline: 1px dotted var(--border);
}

.conn-badge {
  font-size: 0.78rem;
  color: var(--muted);
  transition: color var(--t);
}

.conn-badge.online { color: var(--green); }
.conn-badge.error { color: var(--red); }

.icon-btn {
  font-family: var(--font);
  font-size: 0.95rem;
  padding: 0.4rem 0.6rem;
  border: var(--dash) var(--border);
  border-radius: 6px;
  background: var(--surface2);
  color: var(--muted);
  cursor: pointer;
  transition: all var(--t);
}

.icon-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--hover-glow);
  transform: translateY(-1px);
}

.dashboard {
  max-width: 1320px;
  margin: 0 auto;
  padding: 1.25rem 1.5rem 2.5rem;
}

.dashboard > .box-hero,
.dashboard > .boxes-grid > .box {
  width: 100%;
}

.hero-curl-tip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  width: 100%;
  margin-top: 0.85rem;
  padding: 0.65rem 1rem;
  font-family: var(--font-ip);
  font-size: 0.82rem;
  color: var(--muted);
  border: var(--dash) var(--border-dim);
  border-radius: 6px;
  background: var(--surface2);
  cursor: pointer;
  transition: all var(--t);
}

.hero-curl-tip:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--hover-glow);
  transform: translateY(-1px);
}

.hero-curl-label {
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  opacity: 0.85;
}

.hero-curl-prefix {
  color: var(--accent);
  font-weight: 700;
  opacity: 0.85;
}

.hero-curl-cmd {
  color: var(--ip);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.hero-curl-tip:hover .hero-curl-label {
  color: var(--accent);
  opacity: 1;
}

.box {
  border: var(--dash) var(--border);
  border-radius: var(--r);
  background: var(--surface);
  transition: border-color var(--t), box-shadow var(--t), transform var(--t);
}

.box-hero {
  padding: 1.15rem 1.35rem 1.1rem;
  margin-bottom: 1rem;
}

.box-hero:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 20px var(--hover-glow);
}

.data-box {
  padding: 1.1rem 1.25rem 1rem;
  display: flex;
  flex-direction: column;
}

.data-box:hover {
  border-color: var(--accent);
  box-shadow: 0 2px 14px var(--hover-glow);
  transform: translateY(-1px);
}

.box-head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.9rem;
  padding-bottom: 0.65rem;
  border-bottom: var(--dash) var(--border-dim);
  transition: border-color var(--t);
  flex-shrink: 0;
}

.data-box .box-head {
  margin-bottom: 0.75rem;
  padding-bottom: 0.55rem;
}

.box:hover .box-head { border-color: var(--border); }

.box-title {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.data-box .box-head .box-title { flex: 1; }

.data-box .box-head .sym-sm {
  font-size: 0.62rem;
  color: var(--muted);
}

.box-hero .map-status { margin-left: auto; }

.box-head-sep {
  color: var(--muted);
  font-size: 0.7rem;
  opacity: 0.5;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(220px, 0.9fr) minmax(280px, 1.1fr);
  gap: 1rem;
  align-items: stretch;
}

.hero-ip {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  text-align: center;
  min-height: 100%;
}

.hero-metrics {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
  min-height: 260px;
}

.hero-map {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  min-height: 100%;
  height: 100%;
}

.ip-display {
  width: 100%;
  flex: 1;
  background: var(--ip-bg);
  border: var(--dash) var(--border);
  border-radius: var(--r);
  padding: 0.85rem 1rem;
  cursor: pointer;
  transition: all var(--t);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  min-height: 0;
}

.ip-display.is-scanning {
  cursor: default;
}

.ip-display.is-scanning:hover {
  border-color: var(--border);
  box-shadow: none;
  transform: none;
}

.ip-display:hover {
  border-color: var(--ip);
  box-shadow: 0 0 28px rgba(110, 255, 168, 0.15);
  transform: scale(1.01);
}

.ip-value {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font);
  font-size: clamp(1.25rem, 3.8vw, 1.85rem);
  font-weight: 400;
  color: var(--ip);
  letter-spacing: 0.08em;
  word-break: break-all;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  transition: text-shadow var(--t), opacity var(--t), filter var(--t);
  max-width: 100%;
  text-align: center;
  min-height: 1.25em;
  box-sizing: content-box;
}

.ip-value.ip-scanning {
  color: var(--muted);
  letter-spacing: 0.06em;
}

.ip-scan {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.12em;
  height: 1em;
  line-height: 1;
  flex-shrink: 0;
}

.ip-oct {
  display: inline-block;
  width: 3ch;
  height: 1em;
  line-height: 1;
  text-align: center;
  position: relative;
  overflow: hidden;
  white-space: nowrap;
  color: var(--accent);
  opacity: 0.85;
  flex-shrink: 0;
}

.ip-oct::after {
  content: '';
  position: absolute;
  inset: -2px 0;
  background: linear-gradient(
    100deg,
    transparent 0%,
    rgba(94, 196, 255, 0.08) 35%,
    rgba(110, 255, 168, 0.45) 50%,
    rgba(94, 196, 255, 0.08) 65%,
    transparent 100%
  );
  transform: translateX(-130%);
  animation: ip-beam 0.45s ease-in-out infinite;
}

.ip-oct:nth-child(1)::after { animation-delay: 0s; }
.ip-oct:nth-child(3)::after { animation-delay: 0.06s; }
.ip-oct:nth-child(5)::after { animation-delay: 0.12s; }
.ip-oct:nth-child(7)::after { animation-delay: 0.18s; }

.ip-sep {
  width: 0.45ch;
  color: var(--muted);
  opacity: 0.35;
  animation: ip-pulse 0.45s ease-in-out infinite;
}

@keyframes ip-beam {
  0%, 100% { transform: translateX(-130%); opacity: 0; }
  15% { opacity: 1; }
  50% { transform: translateX(130%); opacity: 1; }
  85% { opacity: 0; }
}

@keyframes ip-pulse {
  0%, 100% { opacity: 0.2; }
  50% { opacity: 0.7; }
}

.ip-value.ip-revealed {
  animation: ip-reveal 0.12s ease;
}

@keyframes ip-reveal {
  0% { opacity: 0.4; filter: blur(2px); }
  100% { opacity: 1; filter: none; }
}

.ip-display:hover .ip-value:not(.ip-scanning) {
  text-shadow: 0 0 36px color-mix(in srgb, var(--ip) 45%, transparent);
}

.ipv6-strip {
  padding: 0.4rem 0.55rem;
  border: var(--dash) var(--border-dim);
  border-radius: 6px;
  font-size: 0.74rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
  justify-content: center;
  transition: border-color var(--t), background var(--t);
}

.ipv6-strip:hover {
  border-color: var(--border);
  background: var(--surface2);
}

.ipv6-strip.hidden { display: none; }
.ipv6-strip code { word-break: break-all; color: var(--muted); }

.map-container {
  flex: 1 1 auto;
  min-height: 260px;
  border: var(--dash) var(--border-dim);
  border-radius: 6px;
  overflow: hidden;
  filter: var(--map-filter);
  transition: border-color var(--t);
  background: var(--surface2);
  position: relative;
  padding: 0;
}

.map-iframe {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 260px;
  border: 0;
}

.map-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 260px;
  color: var(--muted);
  font-size: 0.74rem;
}

.geo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.2rem 0.5rem;
  font-size: 0.72rem;
  flex-shrink: 0;
}

.geo-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.35rem;
  padding: 0.25rem 0.35rem;
  border-radius: 4px;
  cursor: help;
  transition: background var(--t);
}

.geo-item:hover { background: var(--hover-glow); }

.geo-key {
  color: var(--muted);
  white-space: nowrap;
}

.geo-val {
  word-break: break-word;
  text-align: right;
}

.live-clock {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  flex: 1;
  padding: 0.85rem 1rem;
  border: var(--dash) var(--border);
  border-radius: var(--r);
  background: var(--surface2);
  text-align: center;
  transition: all var(--t);
  min-height: 0;
}

.live-clock:hover {
  border-color: var(--accent);
  background: var(--hover-glow);
}

.clock-body {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  min-width: 0;
}

.clock-date {
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.clock-time {
  font-family: var(--font);
  font-size: clamp(1.25rem, 3.8vw, 1.85rem);
  font-weight: 400;
  color: var(--text);
  letter-spacing: 0.08em;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  min-height: 1.25em;
}

.clock-tz {
  font-size: 0.62rem;
  color: var(--accent);
  opacity: 0.85;
  letter-spacing: 0.04em;
}

.overview-panel {
  margin-top: 0.85rem;
  padding: 0.9rem 1rem;
  border: var(--dash) var(--border-dim);
  border-radius: var(--r);
  background: var(--surface2);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.overview-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.overview-group-title {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  padding-bottom: 0.35rem;
  border-bottom: var(--dash) var(--border-dim);
}

.overview-group-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(10.5rem, 1fr));
  gap: 0.45rem;
}

.overview-item {
  display: flex;
  flex-direction: column;
  gap: 0.28rem;
  padding: 0.55rem 0.65rem;
  border: var(--dash) var(--border-dim);
  border-radius: 6px;
  background: var(--surface);
  cursor: help;
  transition: border-color var(--t), background var(--t), box-shadow var(--t);
  min-width: 0;
}

.overview-item:hover {
  border-color: var(--border);
  background: var(--hover-glow);
  box-shadow: 0 2px 10px var(--hover-glow);
}

.overview-key {
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  line-height: 1.2;
}

.overview-val {
  color: var(--text);
  font-size: 0.76rem;
  font-weight: 600;
  line-height: 1.35;
  word-break: break-word;
}

.overview-val.is-mono {
  font-family: var(--font-ip);
  font-size: 0.68rem;
  font-weight: 500;
  word-break: break-all;
  color: var(--muted);
}

.stat-inline:hover {
  border-color: var(--border);
  background: var(--hover-glow);
}

.stat-inline .stat-label {
  display: block;
  font-size: 0.58rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  line-height: 1.2;
}

.stat-inline .stat-value {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  word-break: break-word;
  line-height: 1.25;
}

.map-status {
  font-size: 0.68rem;
  color: var(--muted);
}

.box-advanced {
  margin-top: 1rem;
  overflow: hidden;
}

.advanced-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.75rem 1.1rem;
  border: none;
  background: transparent;
  color: var(--text);
  font-family: var(--font);
  cursor: pointer;
  text-align: left;
  transition: background var(--t), color var(--t);
}

.advanced-toggle:hover {
  background: var(--hover-glow);
  color: var(--accent);
}

.advanced-toggle .box-title {
  flex: 1;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.advanced-chevron {
  color: var(--muted);
  font-size: 0.72rem;
  transition: transform var(--t), color var(--t);
}

.box-advanced:not(.is-collapsed) .advanced-chevron {
  transform: rotate(90deg);
  color: var(--accent);
}

.advanced-panel {
  padding: 0 1rem 1rem;
}

.boxes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
  align-items: stretch;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.74rem;
  flex: 1;
}

.data-box .data-table thead th {
  padding: 0.45rem 0.55rem;
  font-size: 0.64rem;
}

.data-table thead th {
  text-align: left;
  padding: 0.4rem 0.5rem;
  border-bottom: var(--dash) var(--border);
  color: var(--muted);
  font-weight: 700;
  font-size: 0.64rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.data-table tbody tr {
  border-bottom: 1px dotted var(--border-dim);
  transition: background var(--t), border-color var(--t);
  cursor: help;
}

.data-table tbody tr:last-child { border-bottom: none; }

.data-table tbody tr:hover {
  background: var(--hover-glow);
  box-shadow: inset 3px 0 0 var(--accent);
}

.data-box .data-table td {
  padding: 0.45rem 0.55rem;
}

.data-table td {
  padding: 0.5rem 0.65rem;
  vertical-align: top;
  transition: color var(--t);
  line-height: 1.35;
}

.data-table td:first-child {
  color: var(--muted);
  width: 42%;
  word-break: break-word;
}

.data-table td:last-child {
  word-break: break-all;
  white-space: pre-wrap;
}

.data-table tbody tr:hover td:first-child { color: var(--text); }

.data-table .val-ipv4 { color: var(--ip); font-weight: 700; }
.data-table .val-null { color: var(--muted); font-style: italic; }
.data-table .val-mono { font-size: 0.72rem; }

.data-table.compact td { padding: 0.4rem 0.55rem; }

.tooltip {
  position: fixed;
  z-index: 10000;
  max-width: 340px;
  padding: 0.65rem 0.85rem;
  background: var(--tooltip-bg);
  border: var(--dash) var(--border);
  border-radius: 6px;
  font-size: 0.76rem;
  line-height: 1.45;
  color: var(--text);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.3);
  pointer-events: none;
}

.copy-toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(1rem);
  z-index: 10001;
  padding: 0.65rem 1.1rem;
  background: var(--surface);
  border: var(--dash) var(--green);
  border-radius: 8px;
  color: var(--green);
  font-size: 0.82rem;
  font-weight: 700;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.25);
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
}

.copy-toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.box-footer {
  margin-top: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  flex-wrap: wrap;
  padding: 0.85rem 1.1rem;
  font-size: 0.72rem;
  color: var(--muted);
  transition: border-color var(--t), box-shadow var(--t), opacity var(--t);
  opacity: 0.85;
}

.footer-copy { opacity: 0.85; }

.footer-contact {
  color: var(--muted);
  text-decoration: none;
  opacity: 0.7;
  transition: color var(--t), opacity var(--t);
}

.footer-contact:hover {
  color: var(--accent);
  opacity: 1;
}

.footer-contact::before {
  content: '·';
  margin-right: 0.65rem;
  opacity: 0.5;
}

.box-footer:hover {
  opacity: 1;
  border-color: var(--accent);
  box-shadow: 0 2px 14px var(--hover-glow);
}

@media (max-width: 800px) {
  .dashboard { padding-left: 0.75rem; padding-right: 0.75rem; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-map { height: auto; min-height: 0; }
  .hero-metrics { min-height: 0; flex: none; }
  .live-clock, .ip-display { flex: none; min-height: 5rem; }
  .map-container { flex: none; height: 220px; min-height: 220px; }
  .overview-group-grid { grid-template-columns: repeat(2, 1fr); }
  .box-hero { padding-left: 0.9rem; padding-right: 0.9rem; }
  .advanced-panel { padding-left: 0.75rem; padding-right: 0.75rem; }
}

@media (max-width: 768px) {
  .desktop-only { display: none !important; }
  .mobile-only { display: block; }
  .boxes-grid { grid-template-columns: 1fr; }
}

@media (max-width: 540px) {
  html { font-size: 16px; }
  .dashboard {
    padding-left: max(0.45rem, env(safe-area-inset-left, 0.45rem));
    padding-right: max(0.45rem, env(safe-area-inset-right, 0.45rem));
  }
  .box-header,
  .box-hero,
  .box-advanced,
  .box-footer {
    padding-left: 0.7rem;
    padding-right: 0.7rem;
  }
  .data-box { padding-left: 0.75rem; padding-right: 0.75rem; }
  .advanced-panel { padding-left: 0.55rem; padding-right: 0.55rem; }
  .overview-panel { padding-left: 0.65rem; padding-right: 0.65rem; }
  .logo { font-size: 1.2rem; }
  .overview-group-grid { grid-template-columns: 1fr; }
}