:root,
[data-theme="dark"] {
  --bg: #0f1419;
  --surface: #1a2332;
  --surface-elevated: #243044;
  --border: #2d3a4f;
  --text: #e7ecf3;
  --text-muted: #8b9cb3;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --public: #22c55e;
  --private: #f59e0b;
  --reserved: #a855f7;
  --special: #06b6d4;
  --error: #ef4444;
  --radius: 12px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "Cascadia Code", "Consolas", "Courier New", monospace;
  --content-max: 1200px;
  --page-gutter: 1.25rem;
  --touch-min: 44px;
  --topbar-bg: #0c1a2e;
  --topbar-end: #0a1525;
  --topbar-accent: #1e4a7a;
  --shadow-bar: 0 4px 16px rgba(0, 0, 0, 0.35);
  --tab-active-text: #fff;
  --tab-hover-bg: rgba(59, 130, 246, 0.12);
  --tab-active-bg: rgba(59, 130, 246, 0.22);
  --btn-primary-text: #fff;
  --error-bg: rgba(239, 68, 68, 0.15);
  --error-text: #fecaca;
  --error-border: rgba(239, 68, 68, 0.4);
  --scrollbar-size: 10px;
  --scrollbar-track: var(--bg);
  --scrollbar-thumb: #3a4a62;
  --scrollbar-thumb-hover: var(--accent);
}

[data-theme="light"] {
  --bg: #eef2f7;
  --surface: #ffffff;
  --surface-elevated: #f8fafc;
  --border: #c5d0de;
  --text: #1a2332;
  --text-muted: #5a6b82;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --public: #15803d;
  --private: #b45309;
  --reserved: #7e22ce;
  --special: #0e7490;
  --error: #dc2626;
  --topbar-bg: #dbeafe;
  --topbar-end: #eff6ff;
  --topbar-accent: #3b82f6;
  --shadow-bar: 0 2px 10px rgba(15, 23, 42, 0.08);
  --tab-active-text: #1e3a8a;
  --tab-hover-bg: rgba(37, 99, 235, 0.1);
  --tab-active-bg: rgba(255, 255, 255, 0.9);
  --btn-primary-text: #fff;
  --error-bg: rgba(220, 38, 38, 0.1);
  --error-text: #991b1b;
  --error-border: rgba(220, 38, 38, 0.35);
  --scrollbar-track: var(--bg);
  --scrollbar-thumb: #b8c5d6;
  --scrollbar-thumb-hover: var(--accent);
}

[data-theme="light"] .theme-toggle__sun {
  display: none;
}

[data-theme="light"] .theme-toggle__moon {
  display: block;
}

[data-theme="dark"] .theme-toggle__sun {
  display: block;
}

[data-theme="dark"] .theme-toggle__moon {
  display: none;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scrollbar-gutter: stable;
}

/* Scrollbar acoplada al tema (Firefox + Chromium) */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

*::-webkit-scrollbar {
  width: var(--scrollbar-size);
  height: var(--scrollbar-size);
}

*::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}

*::-webkit-scrollbar-thumb {
  background-color: var(--scrollbar-thumb);
  border: 2px solid var(--scrollbar-track);
  border-radius: 999px;
  background-clip: padding-box;
}

*::-webkit-scrollbar-thumb:hover {
  background-color: var(--scrollbar-thumb-hover);
}

*::-webkit-scrollbar-corner {
  background: var(--scrollbar-track);
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  overflow-x: hidden;
}

/* Barra superior 100% con color distintivo; menú alineado al contenedor 1200px */
.tabs-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  padding-top: env(safe-area-inset-top, 0);
  background: linear-gradient(180deg, var(--topbar-bg) 0%, var(--topbar-end) 100%);
  border-bottom: 2px solid var(--topbar-accent);
  box-shadow: var(--shadow-bar);
}

.tabs-bar__row {
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
  width: 100%;
  max-width: min(var(--content-max), 100%);
  margin: 0 auto;
  padding: 0.35rem max(var(--page-gutter), env(safe-area-inset-right)) 0
    max(var(--page-gutter), env(safe-area-inset-left));
}

.nav-drawer {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.nav-menu-toggle,
.nav-drawer__head,
.nav-menu-title,
.nav-backdrop {
  display: none;
}

.nav-menu-toggle svg,
.nav-drawer__close svg {
  width: 1.35rem;
  height: 1.35rem;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.tabs-bar__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  justify-content: flex-start;
  gap: 0.25rem;
  flex: 1;
  min-width: 0;
}

/* Contenido centrado con ancho máximo */
.page {
  width: 100%;
  max-width: min(var(--content-max), 100%);
  margin: 0 auto;
  padding: 2rem max(var(--page-gutter), env(safe-area-inset-right))
    max(3rem, env(safe-area-inset-bottom))
    max(var(--page-gutter), env(safe-area-inset-left));
}

.tab {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  flex: 0 0 auto;
  width: auto;
  padding: 0.75rem 1.15rem;
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font);
  color: var(--text-muted);
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  border-radius: 6px 6px 0 0;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.15s, background 0.15s, border-color 0.15s;
}

.tab__icon {
  display: inline-flex;
  flex-shrink: 0;
  line-height: 0;
}

.tab__icon svg {
  width: 1.15rem;
  height: 1.15rem;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.tab[data-tab="home"] .tab__icon svg {
  fill: currentColor;
  stroke: none;
}

.tab:hover {
  color: var(--text);
  background: var(--tab-hover-bg);
}

.tab--active {
  color: var(--tab-active-text);
  background: var(--tab-active-bg);
  border-bottom-color: var(--accent);
}

.theme-toggle {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 0.15rem;
  padding: 0;
  color: var(--text-muted);
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}

.theme-toggle:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.theme-toggle svg {
  width: 1.2rem;
  height: 1.2rem;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.theme-toggle__moon path {
  fill: currentColor;
  stroke: none;
}

.tab-panel[hidden] {
  display: none;
}

.page .header[hidden] {
  display: none;
}

.home-hero__title {
  margin: 0 0 0.5rem;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text);
  text-align: center;
}

.home-hero__subtitle {
  margin: 0;
  color: var(--text-muted);
  text-align: center;
}

.home-about__text {
  margin: 0 0 1rem;
  line-height: 1.55;
  color: var(--text);
}

.home-about__text--muted {
  margin-bottom: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.home-about__subtitle {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
}

.home-about__list {
  margin: 0 0 1rem;
  padding-left: 1.25rem;
  line-height: 1.55;
  color: var(--text-muted);
}

.home-about__list li {
  margin-bottom: 0.45rem;
}

.home-about__list strong {
  color: var(--text);
}

.home-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.home-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 1.25rem;
  text-align: left;
  font-family: var(--font);
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, transform 0.15s;
}

@media (hover: hover) {
  .home-card:hover {
    border-color: var(--accent);
    background: var(--surface-elevated);
    transform: translateY(-2px);
  }
}

.home-card:active {
  background: var(--surface-elevated);
  border-color: var(--accent);
}

.home-card__icon svg {
  width: 1.75rem;
  height: 1.75rem;
  stroke: var(--accent);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.home-card__title {
  font-size: 1.05rem;
  font-weight: 700;
}

.home-card__desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.home-section-title {
  margin: 0 0 1rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.home-widget__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.home-widget__head .home-section-title {
  margin: 0;
}

.home-ip-value {
  margin: 0 0 0.35rem;
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--mono);
  letter-spacing: 0.02em;
}

.btn-secondary--sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
}

.result-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.tool-result-block {
  margin-top: 0.75rem;
}

.result-toast {
  position: fixed;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  padding: 0.6rem 1rem;
  border-radius: var(--radius);
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  font-size: 0.9rem;
  color: var(--text);
}

.btn-link {
  margin-top: 0.75rem;
  padding: 0;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font);
  color: var(--accent);
  background: none;
  border: none;
  cursor: pointer;
}

.btn-link:hover {
  text-decoration: underline;
}

.home-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-top: 1.25rem;
}


.home-widget,
.home-columns,
.home-chips,
.home-tips {
  margin-top: 1.25rem;
}

.table-scroll {
  overflow-x: auto;
}

.tool-table--compact th,
.tool-table--compact td {
  padding: 0.4rem 0.55rem;
  font-size: 0.8rem;
}

.home-range-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.home-range-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0;
  font-size: 0.88rem;
  border-top: 1px solid var(--border);
}

.home-range-list li:first-child {
  border-top: none;
}

.home-range-list code {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--text);
}

.badge--sm {
  padding: 0.2rem 0.5rem;
  font-size: 0.7rem;
  margin-bottom: 0;
}

.home-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.home-chip {
  padding: 0.45rem 0.85rem;
  font-size: 0.85rem;
  font-weight: 500;
  font-family: var(--font);
  color: var(--text);
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}

.home-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.home-tips-list {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.home-tips-list li {
  margin-bottom: 0.5rem;
}

.home-tips-list li:last-child {
  margin-bottom: 0;
}

.home-tips-list code {
  font-family: var(--mono);
  font-size: 0.85em;
  color: var(--text);
}

.header {
  text-align: center;
  margin-bottom: 2rem;
}

.header h1 {
  margin: 0 0 0.5rem;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.subtitle {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}

.card h2 {
  margin: 0 0 1rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.field label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}

.field input[type="text"],
.field input[type="number"] {
  width: 100%;
  padding: 0.65rem 0.85rem;
  font-size: 1rem;
  font-family: var(--mono);
  color: var(--text);
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  outline: none;
  transition: border-color 0.15s;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--accent);
}

.field-select,
.field-textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  font-size: 1rem;
  font-family: var(--font);
  color: var(--text);
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  outline: none;
}

.field-textarea {
  font-family: var(--mono);
  font-size: 0.9rem;
  resize: vertical;
  min-height: 5rem;
}

.tool-output {
  margin-top: 1rem;
}

.tool-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  font-family: var(--mono);
}

.tool-table th,
.tool-table td {
  padding: 0.5rem 0.65rem;
  text-align: left;
  border-top: 1px solid var(--border);
}

.dns-health-summary {
  margin: 0 0 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
}

.dns-prop-hint {
  margin: 0 0 0.75rem;
}

.dns-prop-summary {
  margin: 0 0 0.35rem;
  font-weight: 600;
  font-size: 0.95rem;
}

.dns-prop-status {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  font-weight: 700;
  font-size: 0.95rem;
  border-radius: 999px;
}

.dns-prop-status--ok {
  color: #166534;
  background: rgba(34, 197, 94, 0.15);
}

.dns-prop-status--fail {
  color: #991b1b;
  background: rgba(239, 68, 68, 0.12);
}

.dns-prop-table td:first-child,
.dns-prop-table th:first-child {
  width: 3rem;
  text-align: center;
}

.field-optional {
  font-weight: 400;
  color: var(--text-muted);
  font-size: 0.85em;
}

.tool-form--wrap {
  flex-wrap: wrap;
}

.dns-health-score--good {
  color: #22c55e;
}

.dns-health-score--mid {
  color: #eab308;
}

.dns-health-score--low {
  color: #ef4444;
}

.dns-health-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0 0 0.75rem;
}

.dns-health-filter {
  padding: 0.35rem 0.7rem;
  font-size: 0.8rem;
  font-family: var(--font);
  font-weight: 600;
  color: var(--text-muted);
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}

.dns-health-filter:hover {
  color: var(--text);
  border-color: var(--accent);
}

.dns-health-filter--active {
  color: var(--accent);
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
}

.dns-health-empty {
  text-align: center;
  color: var(--text-muted);
  font-style: italic;
}

.tool-form,
.dns-health-form {
  display: flex;
  align-items: flex-end;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.tool-form .field-grow,
.dns-health-form .field-grow {
  flex: 1 1 12rem;
  min-width: 0;
  margin: 0;
}

.tool-form__btn,
.dns-health-form__btn {
  flex: 0 0 auto;
  white-space: nowrap;
  min-height: 2.75rem;
}

.tool-form--end {
  justify-content: flex-end;
  margin-top: 0.5rem;
}

.tool-form--toolbar {
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.field-narrow {
  flex: 0 1 5.5rem;
  min-width: 4.5rem;
}

.field-select-wrap {
  flex: 0 1 7.5rem;
  min-width: 6rem;
}

.card-input--compact {
  padding-top: 1rem;
  padding-bottom: 1rem;
  margin-bottom: 0.65rem;
}

.card-input--compact + .card-input--compact {
  margin-top: 0;
}

.field-narrow input,
.field-select-wrap .field-select {
  width: 100%;
}

.card-input--compact .field-row {
  margin-top: 0.75rem;
}

.card-tool-label {
  margin: 0 0 0.65rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.dns-health-loading[aria-busy="true"] {
  border-color: var(--accent);
}

.dns-health-loading__inner {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.dns-health-loading__spinner {
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  margin-top: 0.1rem;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: dns-health-spin 0.85s linear infinite;
}

@keyframes dns-health-spin {
  to {
    transform: rotate(360deg);
  }
}

.dns-health-loading__title {
  margin: 0 0 0.35rem;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text);
}

.dns-health-loading__msg {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.dns-health-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.dns-health-table th,
.dns-health-table td {
  padding: 0.5rem 0.65rem;
  text-align: left;
  border-top: 1px solid var(--border);
  vertical-align: top;
}

.dns-health-cat td {
  background: var(--surface-elevated);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-top: 2px solid var(--border);
}

.dns-health-th-status {
  width: 2.5rem;
}

.dns-health-status {
  width: 2.5rem;
  text-align: center;
  font-weight: 700;
  font-size: 1rem;
}

.dns-health-status--pass {
  color: #22c55e;
}

.dns-health-status--warn {
  color: #eab308;
}

.dns-health-status--fail {
  color: #ef4444;
}

.dns-health-status--info {
  color: var(--accent);
}

.dns-health-name {
  font-weight: 600;
  white-space: nowrap;
  width: 28%;
}

.dns-health-info {
  font-family: var(--mono);
  font-size: 0.8rem;
  white-space: pre-line;
  word-break: break-word;
}

.tool-table td {
  white-space: pre-line;
  vertical-align: top;
}

.tool-table th {
  color: var(--text-muted);
  font-family: var(--font);
  font-weight: 600;
  font-size: 0.8rem;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}


.prefix-control {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.prefix-control input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
}

.prefix-control input[type="number"] {
  width: 4rem;
  text-align: center;
}

.prefix-suffix {
  font-family: var(--mono);
  color: var(--text-muted);
  font-size: 0.9rem;
}

.hint {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.btn-primary {
  padding: 0.75rem 1.25rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--btn-primary-text);
  background: var(--accent);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-secondary {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
}

.btn-secondary:hover {
  border-color: var(--accent);
}

.ip-public-display {
  margin: 0 0 0.5rem;
  font-size: 1.75rem;
  font-weight: 700;
  font-family: var(--mono);
  letter-spacing: 0.02em;
}

.ip-public-display--sm {
  margin: 0.15rem 0 0.75rem;
  font-size: 1.25rem;
}

/* Inicio: IP pública + datos ISP (una sola cuadrícula) */
#home-ip-card .home-widget__head {
  margin-bottom: 0.35rem;
}

#home-ip-card .home-ip-grid {
  grid-template-columns: 6.5rem 1fr;
  gap: 0.2rem 0.75rem;
  margin: 0;
}

#home-ip-card .home-ip-grid dt {
  margin-top: 0;
  font-size: 0.82rem;
}

#home-ip-card .home-ip-grid dd {
  margin: 0;
  padding: 0;
  border: none;
  font-size: 0.88rem;
}

#home-ip-card .home-ip-grid__addr {
  font-size: 0.95rem;
  font-weight: 700;
  font-family: var(--mono);
  word-break: break-all;
}

.ip-dual-display {
  margin: 0.75rem 0 0;
}

.ip-dual-display dt,
.ip-dual-display__heading {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.ip-error {
  margin: 0.5rem 0 0;
  font-size: 0.9rem;
  color: var(--danger, #c44);
}

.ip-error[hidden] {
  display: none;
}

.ip-dual-display dd {
  margin: 0;
}

.ip-stack {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.ip-stack__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 0.75rem;
}

.ip-stack__row[hidden],
.ip-dual-display__heading[hidden],
.ip-stack[hidden] {
  display: none;
}

.ip-stack__label {
  flex: 0 0 2.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: var(--font);
  color: var(--text-muted);
}

.ip-stack .ip-public-display--sm {
  flex: 1 1 auto;
  margin: 0;
  min-width: 0;
  word-break: break-all;
}

.field-inline {
  max-width: 8rem;
}

.field-inline input {
  width: 100%;
  padding: 0.65rem 0.85rem;
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--text);
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.card-note h2 {
  text-transform: none;
  letter-spacing: normal;
  color: var(--text);
  font-size: 0.95rem;
}

.ping-results {
  margin-top: 1rem;
}

.ping-log {
  margin: 0.5rem 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: 0.9rem;
}

.ping-log li {
  padding: 0.35rem 0;
  border-top: 1px solid var(--border);
}

.error {
  margin: 1rem 0 0;
  padding: 0.65rem 0.85rem;
  font-size: 0.9rem;
  color: var(--error-text);
  background: var(--error-bg);
  border: 1px solid var(--error-border);
  border-radius: 8px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  font-size: 1.1rem;
  font-weight: 700;
  border-radius: 999px;
  margin-bottom: 0.75rem;
}

.badge--public {
  background: rgba(34, 197, 94, 0.2);
  color: var(--public);
  border: 1px solid rgba(34, 197, 94, 0.45);
}

.badge--private {
  background: rgba(245, 158, 11, 0.2);
  color: var(--private);
  border: 1px solid rgba(245, 158, 11, 0.45);
}

.badge--reserved {
  background: rgba(168, 85, 247, 0.2);
  color: var(--reserved);
  border: 1px solid rgba(168, 85, 247, 0.45);
}

.badge--special {
  background: rgba(6, 182, 212, 0.2);
  color: var(--special);
  border: 1px solid rgba(6, 182, 212, 0.45);
}

.classification-compact {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: -0.35rem 0 0.75rem;
  padding: 0.5rem 0.65rem;
  font-size: 0.85rem;
  line-height: 1.45;
  background: var(--surface-elevated);
  border-radius: 8px;
  border: 1px solid var(--border);
}

.classification-compact .badge {
  margin-bottom: 0;
  flex-shrink: 0;
}

.classification-compact__text {
  margin: 0;
  color: var(--text-muted);
  min-width: 0;
}

.card-results-primary h2 {
  margin-bottom: 0.65rem;
}

.results .card {
  margin-bottom: 0.75rem;
  padding: 1rem 1.15rem;
}

.classification-detail {
  margin: 0 0 0.75rem;
  color: var(--text);
  font-size: 0.95rem;
}

.range-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.range-list li {
  padding: 0.4rem 0;
  font-size: 0.85rem;
  font-family: var(--mono);
  color: var(--text-muted);
  border-top: 1px solid var(--border);
}

.range-list li:first-child {
  border-top: none;
}

.data-grid {
  display: grid;
  grid-template-columns: minmax(140px, 38%) 1fr;
  gap: 0.5rem 1rem;
  margin: 0;
}

.data-grid dt {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.data-grid dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.9rem;
  word-break: break-word;
  white-space: pre-line;
}

.data-grid-binary dd {
  font-size: 0.78rem;
  line-height: 1.6;
}

.footer {
  text-align: center;
  margin-top: 2rem;
}

.footer p {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-link {
  padding: 0;
  font-size: inherit;
  font-family: inherit;
  font-weight: 600;
  color: var(--accent);
  background: none;
  border: none;
  cursor: pointer;
  text-decoration: underline;
}

.footer-link:hover {
  color: var(--accent-hover);
}

.sources-intro {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.55;
}

.sources-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.sources-item {
  padding: 0.85rem 0;
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
  line-height: 1.5;
}

.sources-item:first-child {
  border-top: none;
  padding-top: 0;
}

.sources-item strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--text);
  font-size: 0.95rem;
}

.sources-item span {
  color: var(--text-muted);
}

.sources-list--links a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.sources-list--links a:hover {
  text-decoration: underline;
}

.card .home-section-title {
  margin-bottom: 0.75rem;
}

/* ——— Diseño móvil y tablet ——— */
@media (max-width: 900px) {
  .field-row {
    grid-template-columns: 1fr;
  }

  .home-columns {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root,
  [data-theme="dark"],
  [data-theme="light"] {
    --page-gutter: 1rem;
  }

  .page {
    padding-top: 1.25rem;
    padding-bottom: max(2rem, env(safe-area-inset-bottom));
  }

  .header {
    margin-bottom: 1.25rem;
  }

  .header h1,
  .home-hero__title {
    font-size: 1.4rem;
  }

  .subtitle,
  .home-hero__subtitle {
    font-size: 0.88rem;
  }

  .card {
    padding: 1.15rem;
    margin-bottom: 1rem;
  }

  .tool-form,
  .dns-health-form {
    flex-direction: column;
    align-items: stretch;
  }

  /* En columna, flex-grow estira el campo y deja hueco vacío bajo el input */
  .tool-form .field-grow,
  .dns-health-form .field-grow {
    flex: 0 1 auto;
  }

  .tool-form__btn,
  .dns-health-form__btn {
    width: 100%;
  }

  .tabs-bar__row {
    align-items: center;
    gap: 0.5rem;
    padding-top: 0.35rem;
    padding-bottom: 0.35rem;
  }

  .nav-menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: var(--touch-min);
    height: var(--touch-min);
    padding: 0;
    color: var(--text);
    background: var(--surface-elevated);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
  }

  .nav-menu-toggle:hover {
    color: var(--accent);
    border-color: var(--accent);
  }

  .nav-menu-title {
    display: block;
    flex: 1;
    min-width: 0;
    margin: 0;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .nav-drawer {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 120;
    width: min(18.5rem, 88vw);
    flex: none;
    background: linear-gradient(180deg, var(--topbar-bg) 0%, var(--surface) 35%);
    border-right: 1px solid var(--border);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.25);
    transform: translateX(-105%);
    transition: transform 0.22s ease;
    padding-top: env(safe-area-inset-top, 0);
    padding-bottom: env(safe-area-inset-bottom, 0);
    padding-left: env(safe-area-inset-left, 0);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  body.nav-open .nav-drawer {
    transform: translateX(0);
  }

  .nav-drawer__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.85rem 1rem 0.5rem;
    border-bottom: 1px solid var(--border);
  }

  .nav-drawer__title {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-muted);
  }

  .nav-drawer__close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    padding: 0;
    color: var(--text-muted);
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
  }

  .nav-drawer__close:hover {
    color: var(--accent);
    border-color: var(--accent);
  }

  .nav-backdrop {
    position: fixed;
    inset: 0;
    z-index: 110;
    background: rgba(0, 0, 0, 0.45);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.22s ease, visibility 0.22s ease;
  }

  body.nav-open .nav-backdrop {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  body.nav-open {
    overflow: hidden;
  }

  .tabs-bar__inner {
    flex-direction: column;
    flex-wrap: nowrap;
    overflow: visible;
    gap: 0.2rem;
    padding: 0.65rem 0.75rem 1rem;
    mask-image: none;
  }

  .tab {
    flex-shrink: 0;
    width: 100%;
    justify-content: flex-start;
    min-height: var(--touch-min);
    padding: 0.75rem 0.9rem;
    font-size: 0.92rem;
    border-bottom: none;
    border-left: 3px solid transparent;
    border-radius: 8px;
  }

  .tab--active {
    border-bottom-color: transparent;
    border-left-color: var(--accent);
  }

  .tab__label {
    position: static;
    width: auto;
    height: auto;
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: nowrap;
  }

  .theme-toggle {
    align-self: center;
    min-width: var(--touch-min);
    min-height: var(--touch-min);
    margin-bottom: 0;
    margin-left: auto;
  }

  .home-grid {
    grid-template-columns: 1fr;
  }

  .home-widget__head {
    flex-direction: column;
    align-items: stretch;
    gap: 0.65rem;
  }

  .home-widget__head .btn-secondary {
    width: 100%;
    min-height: var(--touch-min);
  }

  .home-ip-value,
  .ip-public-display {
    font-size: 1.35rem;
    word-break: break-all;
  }

  .field-inline {
    max-width: none;
  }

  .data-grid {
    grid-template-columns: 1fr;
    gap: 0.2rem 0;
  }

  #home-ip-card .home-ip-grid {
    grid-template-columns: 1fr;
  }

  .data-grid dt {
    margin-top: 0.65rem;
    font-size: 0.8rem;
  }

  .data-grid dt:first-child {
    margin-top: 0;
  }

  .data-grid dd {
    font-size: 0.88rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
  }

  .data-grid dd:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }

  .data-grid-binary dd {
    font-size: 0.72rem;
    line-height: 1.55;
  }

  .prefix-control {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .prefix-control input[type="range"] {
    width: 100%;
    min-height: 28px;
  }

  .prefix-control input[type="number"] {
    width: 3.5rem;
    min-height: var(--touch-min);
    font-size: 16px;
  }

  .field input[type="text"],
  .field input[type="number"],
  .field-select,
  .field-textarea,
  .field-inline input {
    font-size: 16px;
    min-height: var(--touch-min);
  }

  .btn-primary,
  .btn-secondary {
    width: 100%;
    min-height: var(--touch-min);
  }

  .home-chip {
    min-height: 2.25rem;
    padding: 0.5rem 0.9rem;
  }

  .btn-link {
    min-height: var(--touch-min);
    display: inline-flex;
    align-items: center;
  }

  .tool-table {
    font-size: 0.78rem;
  }

  .table-scroll {
    margin: 0 -0.25rem;
    padding: 0 0.25rem;
  }

  .badge {
    font-size: 1rem;
  }
}

@media (max-width: 420px) {
  .home-range-list li {
    flex-direction: column;
    align-items: flex-start;
  }

  .home-range-list code {
    word-break: break-all;
  }
}