:root {
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --success: #10b981;
  --info: #3b82f6;
  --danger: #b91c1c;
  --bg: #f8fafc;
  --bg-accent: #e0e7ff;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #475569;
  --border: #e2e8f0;
  --tabs-bg: #e2e8f0;
  --tabs-active-border: #c7d2fe;
  --tabs-inner-bg: #eef2ff;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --shadow: rgba(15, 23, 42, 0.15);
}

:root[data-theme='dark'] {
  --primary: #818cf8;
  --primary-hover: #6366f1;
  --success: #34d399;
  --info: #60a5fa;
  --danger: #f87171;
  --bg: #0b1020;
  --bg-accent: #1f2340;
  --card: #0f172a;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --border: #334155;
  --tabs-bg: #1f2937;
  --tabs-active-border: #4f46e5;
  --tabs-inner-bg: #232b47;
  --surface: #111827;
  --surface-soft: #1e293b;
  --shadow: rgba(2, 6, 23, 0.7);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg);
}

body {
  margin: 0;
  padding: 20px;
  min-height: 100vh;
  background: radial-gradient(circle at top right, var(--bg-accent), var(--bg) 45%);
  font-family: 'Inter', sans-serif;
  color: var(--text);
  display: flex;
  justify-content: center;
  transition: background 0.25s ease, color 0.25s ease;
}

main {
  width: 100%;
  max-width: 1120px;
}

.card {
  position: relative;
  overflow: hidden;
  background: var(--card);
  border-radius: 20px;
  border: 1px solid var(--border);
  padding: 24px;
  box-shadow: 0 15px 40px var(--shadow);
  transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.card::before {
  content: '';
  position: absolute;
  inset: -100px auto auto -100px;
  width: 240px;
  height: 240px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.2), transparent 68%);
  pointer-events: none;
}

.topbar {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

h1 {
  margin: 0;
  font-size: 1.8rem;
}

p.lead {
  position: relative;
  z-index: 1;
  margin: 6px 0 20px;
  color: var(--muted);
}

.proto-tabs {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 10px;
  background: var(--tabs-bg);
  border-radius: 12px;
  padding: 6px;
  margin-bottom: 18px;
}

.proto-tab {
  flex: 1;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 12px 16px;
  font-weight: 600;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

.proto-tab[aria-selected='true'] {
  background: var(--surface);
  color: var(--primary);
  border-color: var(--tabs-active-border);
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.2);
}

.panel {
  display: none;
  margin-top: 12px;
}

.panel.active {
  display: block;
}

.status {
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid transparent;
  font-size: 0.9rem;
  margin-bottom: 14px;
  display: none;
}

.status.info {
  background: #eff6ff;
  border-color: #bfdbfe;
  color: #1d4ed8;
}

.status.error {
  background: #fef2f2;
  border-color: #fecaca;
  color: #991b1b;
}

:root[data-theme='dark'] .status.info {
  background: #172554;
  border-color: #1d4ed8;
  color: #bfdbfe;
}

:root[data-theme='dark'] .status.error {
  background: #3f1d24;
  border-color: #7f1d1d;
  color: #fecaca;
}

.input-row {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 20px;
  margin-bottom: 12px;
}

.field-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--muted);
}

input,
select,
textarea {
  width: 100%;
  border-radius: 10px;
  border: 2px solid var(--border);
  padding: 12px 14px;
  font-size: 1rem;
  font-family: inherit;
  background: var(--surface);
  color: var(--text);
}

.btn-main,
.copy-btn {
  border: none;
  border-radius: 10px;
  padding: 14px 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease;
}

.btn-main {
  width: 100%;
  background: var(--primary);
  color: #fff;
  margin-bottom: 12px;
}

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

.copy-btn {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 10px 14px;
}

.copy-btn:hover {
  background: var(--surface-soft);
}

.row-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.row-top-compact {
  margin-bottom: 8px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid color-mix(in srgb, var(--border) 84%, var(--primary) 16%);
  background: color-mix(in srgb, var(--surface) 92%, var(--bg-accent) 8%);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.row-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
}

.truncate-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 12px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: color-mix(in srgb, var(--surface-soft) 82%, transparent);
  font-size: 0.78rem;
  color: var(--muted);
}

.truncate-info p {
  margin: 0;
}

.truncate-info .copy-btn {
  flex: 0 0 auto;
}

.role-view {
  margin-top: 12px;
  display: grid;
  gap: 12px;
}

.role-view .role-caption {
  grid-column: 1 / -1;
}

.role-caption {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.35px;
  text-transform: uppercase;
  color: var(--muted);
}

.routing-view {
  margin: 0 0 14px;
}

.routing-card {
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--info) 28%, var(--border));
  border-radius: 12px;
  background: color-mix(in srgb, var(--info) 4%, var(--surface));
  box-shadow: 0 6px 18px color-mix(in srgb, var(--info) 8%, transparent);
}

.routing-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 13px 9px;
  border-bottom: 1px solid color-mix(in srgb, var(--info) 18%, var(--border));
}

.routing-card-eyebrow {
  display: block;
  margin-bottom: 2px;
  color: var(--info);
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.routing-card-title {
  margin: 0;
  color: var(--text);
  font-size: 0.9rem;
}

.routing-card-source {
  flex: 0 0 auto;
  padding: 3px 8px;
  border: 1px solid color-mix(in srgb, var(--info) 28%, var(--border));
  border-radius: 999px;
  color: var(--info);
  font-size: 0.68rem;
  font-weight: 700;
}

.routing-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border-bottom: 1px solid color-mix(in srgb, var(--info) 14%, var(--border));
  background: color-mix(in srgb, var(--border) 70%, transparent);
}

.routing-metric {
  min-width: 0;
  padding: 9px 13px;
  background: var(--surface);
}

.routing-metric-label {
  display: block;
  margin-bottom: 3px;
  color: var(--muted);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.045em;
  text-transform: uppercase;
}

.routing-metric-value {
  display: block;
  color: var(--text);
  font-family: ui-monospace, Consolas, Monaco, monospace;
  font-size: 0.84rem;
  overflow-wrap: anywhere;
}

.routing-origins {
  display: grid;
  gap: 6px;
  padding: 9px 13px 11px;
}

.routing-origin {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  align-items: center;
  gap: 9px;
}

.routing-origin-asn {
  padding: 3px 7px;
  border-radius: 6px;
  background: color-mix(in srgb, var(--info) 13%, transparent);
  color: var(--info);
  font-family: ui-monospace, Consolas, Monaco, monospace;
  font-size: 0.75rem;
  font-weight: 800;
}

.routing-origin-holder {
  min-width: 0;
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 600;
  overflow-wrap: anywhere;
}

.routing-card-message {
  padding: 12px 13px;
  color: var(--muted);
  font-size: 0.8rem;
}

.routing-card--loading .routing-card-message::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 8px;
  border: 2px solid color-mix(in srgb, var(--info) 30%, transparent);
  border-top-color: var(--info);
  border-radius: 50%;
  animation: routing-spin 0.8s linear infinite;
}

.routing-card-message--error {
  color: var(--danger);
}

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

/* --- Novo Design Minimalista de Subnets --- */
.v4-sub-shell {
  display: grid;
  gap: 20px;
}

#v4SubRoles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 360px), 1fr));
  gap: 10px;
  margin-top: 10px;
}

#v6SubRoles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 360px), 1fr));
  gap: 10px;
  margin-top: 10px;
}

/* --- Cores por Classe de IP --- */
:root {
  --cls-a: #3b82f6;
  /* Blue */
  --cls-b: #8b5cf6;
  /* Violet */
  --cls-c: #10b981;
  /* Emerald */
  --cls-d: #f59e0b;
  /* Amber */
  --cls-e: #ef4444;
  /* Red */
  --cls-special: #64748b;
  /* Slate */
}

.subnet-card {
  --card-padding-y: 12px;
  --card-padding-x: 16px;
  --card-gap: 10px;
  --card-line: 1.2;
  --card-label-width: 90px;
  --card-value-width: minmax(170px, 240px);
  --card-bits-size: 0.8rem;
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 3px solid var(--primary);
  border-radius: 12px;
  padding: var(--card-padding-y) var(--card-padding-x);
  overflow: hidden;
  box-shadow: 0 1px 2px color-mix(in srgb, var(--shadow) 35%, transparent);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.subnet-card--dense {
  --card-padding-y: 10px;
  --card-padding-x: 12px;
  --card-gap: 8px;
  --card-line: 1.05;
  --card-label-width: 82px;
  --card-value-width: minmax(150px, 210px);
  --card-bits-size: 0.72rem;
}

.subnet-card--cozy {
  --card-padding-y: 14px;
  --card-padding-x: 16px;
  --card-gap: 10px;
  --card-line: 1.3;
  --card-label-width: 96px;
  --card-value-width: minmax(180px, 260px);
  --card-bits-size: 0.82rem;
}

/* Variações por Classe */
.card-cls-a {
  --current-cls-color: var(--cls-a);
}

.card-cls-b {
  --current-cls-color: var(--cls-b);
}

.card-cls-c {
  --current-cls-color: var(--cls-c);
}

.card-cls-d {
  --current-cls-color: var(--cls-d);
}

.card-cls-e {
  --current-cls-color: var(--cls-e);
}

.card-cls-special {
  --current-cls-color: var(--cls-special);
}

.subnet-card[class*="card-cls-"] {
  border-top-color: var(--current-cls-color);
}

/* Bloco Principal: Cores mais fortes */
.main-block-card {
  background: linear-gradient(145deg, color-mix(in srgb, var(--current-cls-color) 6%, var(--surface)), var(--surface) 56%);
  border-color: color-mix(in srgb, var(--current-cls-color) 30%, var(--border));
  border-top-color: var(--current-cls-color);
  box-shadow: 0 8px 20px color-mix(in srgb, var(--current-cls-color) 10%, transparent);
}

/* Subnets: Escala mais clara */
.subnet-card:not(.main-block-card) {
  background: color-mix(in srgb, var(--current-cls-color) 3%, var(--surface));
  border-color: color-mix(in srgb, var(--current-cls-color) 15%, var(--border));
}

.subnet-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 18px color-mix(in srgb, var(--current-cls-color) 16%, var(--shadow));
  border-color: var(--current-cls-color);
}

.subnet-card-content {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--card-gap);
}

.subnet-card-header {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 9px;
  padding-bottom: 7px;
  border-bottom: 1px solid color-mix(in srgb, var(--current-cls-color) 20%, var(--border));
}

.subnet-card-title {
  color: var(--text);
  font-size: 0.88rem;
  letter-spacing: -0.01em;
}

.subnet-card-meta {
  flex: 0 0 auto;
  padding: 2px 8px;
  border: 1px solid color-mix(in srgb, var(--current-cls-color) 32%, transparent);
  border-radius: 999px;
  background: color-mix(in srgb, var(--current-cls-color) 10%, transparent);
  color: var(--current-cls-color);
  font-size: 0.72rem;
  font-weight: 700;
}

.subnet-card--dense .subnet-card-header {
  margin-bottom: 7px;
  padding-bottom: 6px;
}

.subnet-card--dense .subnet-card-title {
  font-size: 0.8rem;
}

.subnet-card-primary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.subnet-card-details {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--border) 80%, transparent);
  border-radius: 9px;
  background: color-mix(in srgb, var(--border) 72%, transparent);
}

.subnet-card--dense .subnet-card-details {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.subnet-detail-item {
  display: flex;
  min-width: 0;
  flex-direction: column;
  justify-content: center;
  gap: 3px;
  padding: 8px 10px;
  line-height: var(--card-line);
}

.subnet-card-details .subnet-detail-item {
  min-height: 56px;
  background: var(--surface);
}

.detail-label {
  font-size: 0.66rem;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.045em;
}

.detail-value {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
  font-family: ui-monospace, Consolas, Monaco, monospace;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.subnet-detail-item--network,
.subnet-detail-item--broadcast {
  min-height: 58px;
  margin: 0;
  padding: 9px 11px;
  border: 1px solid color-mix(in srgb, var(--current-cls-color) 24%, var(--border));
  border-radius: 9px;
  background: color-mix(in srgb, var(--current-cls-color) 7%, var(--surface));
}

.subnet-card--dense .subnet-detail-item--network,
.subnet-card--dense .subnet-detail-item--broadcast {
  min-height: 52px;
  margin: 0;
  padding: 7px 9px;
}

.subnet-detail-item--network .detail-label,
.subnet-detail-item--broadcast .detail-label {
  color: var(--current-cls-color);
}

.subnet-detail-item--network .detail-value,
.subnet-detail-item--broadcast .detail-value {
  color: var(--current-cls-color);
  font-size: 1rem;
}

.subnet-detail-item--wildcard .detail-value {
  color: var(--primary);
}

.detail-bits {
  display: flex;
  align-items: center;
}

code.bits {
  display: inline-block;
  font-family: ui-monospace, Consolas, Monaco, monospace;
  font-size: var(--card-bits-size);
  padding: 3px 8px;
  border-radius: 6px;
  background: color-mix(in srgb, var(--surface-soft) 80%, transparent);
  color: var(--muted);
  letter-spacing: 0.5px;
  white-space: pre-wrap;
  border: 1px solid color-mix(in srgb, var(--border) 75%, transparent);
}

.binary-details {
  position: relative;
  z-index: 1;
  margin-top: 10px;
  border-top: 1px solid color-mix(in srgb, var(--current-cls-color) 18%, var(--border));
  color: var(--muted);
}

.binary-details summary {
  padding: 8px 0 0;
  cursor: pointer;
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--current-cls-color);
  user-select: none;
}

.binary-details-grid {
  display: grid;
  gap: 2px;
  margin-top: 8px;
  padding: 8px;
  border-radius: 8px;
  background: color-mix(in srgb, var(--surface-soft) 72%, transparent);
}

.binary-details .subnet-detail-item {
  display: grid;
  grid-template-columns: var(--card-label-width) minmax(0, 1fr);
  padding: 1px 0;
}

.binary-details .detail-value {
  display: none;
}

.binary-details .detail-bits {
  grid-column: 2;
}

.binary-details code.bits {
  width: 100%;
  overflow-x: auto;
}

@media (max-width: 768px) {
  #v4SubRoles {
    grid-template-columns: 1fr;
  }

  #v6SubRoles {
    grid-template-columns: 1fr;
  }

  .subnet-card {
    --card-padding-x: 12px;
  }

  .subnet-card-details {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .routing-metrics {
    grid-template-columns: 1fr;
  }

  .binary-details .subnet-detail-item {
    grid-template-columns: 82px minmax(0, 1fr);
  }

  .binary-details code.bits {
    width: 100%;
    overflow-x: auto;
  }

  .truncate-info {
    align-items: stretch;
    flex-direction: column;
  }

  .truncate-info .copy-btn {
    width: 100%;
  }
}


.tabs-inner {
  display: flex;
  gap: 8px;
  background: var(--tabs-inner-bg);
  padding: 4px;
  border-radius: 10px;
  margin-bottom: 12px;
}

.tabs-inner button {
  flex: 1;
  background: var(--surface);
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 10px;
  font-weight: 600;
  cursor: pointer;
  transition: border 0.2s ease, color 0.2s ease;
  color: var(--text);
}

.tabs-inner button[aria-selected='true'] {
  border-color: var(--primary);
  color: var(--primary);
}

.ptp-item {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 16px;
  margin-bottom: 12px;
  background: var(--surface);
}

.ptp-item.gw {
  border-left: 5px solid var(--success);
  background: #ecfdf5;
}

.ptp-item.cli {
  border-left: 5px solid var(--info);
  background: #eff6ff;
}

:root[data-theme='dark'] .ptp-item.gw {
  background: #052e25;
}

:root[data-theme='dark'] .ptp-item.cli {
  background: #172554;
}

.ptp-item .role-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #fff;
  border-radius: 999px;
  padding: 4px 8px;
  margin-bottom: 6px;
}

.bg-gw {
  background: var(--success);
}

.bg-cli {
  background: var(--info);
}

.bg-res {
  background: #64748b;
}

.ip-friendly {
  font-size: 1.1rem;
  font-weight: 600;
}

.ip-expanded {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 4px;
  font-family: ui-monospace, Consolas, Monaco, 'Liberation Mono', monospace;
}

.hidden {
  display: none !important;
}

.theme-toggle {
  position: relative;
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 999px;
  padding: 0;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s ease;
}

.theme-toggle:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(79, 70, 229, 0.22);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.theme-icon {
  position: absolute;
  width: 24px;
  height: 24px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(1);
  transition: opacity 0.28s ease, transform 0.28s ease;
}

.theme-icon svg {
  width: 100%;
  height: 100%;
}

.theme-icon-sun {
  opacity: 1;
}

.theme-icon-moon {
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.5) rotate(-30deg);
}

:root[data-theme='dark'] .theme-icon-sun {
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.5) rotate(45deg);
}

:root[data-theme='dark'] .theme-icon-moon {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1) rotate(0deg);
}

.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;
}

@media (max-width: 760px) {
  body {
    padding: 12px;
  }

  .input-row {
    grid-template-columns: 1fr;
  }

  .card {
    padding: 18px;
  }

  .theme-toggle {
    width: 48px;
  }

  .v4-sub-shell {
    grid-template-columns: 1fr;
  }

  #v4SubRoles {
    grid-template-columns: 1fr;
  }

  #v6SubRoles {
    grid-template-columns: 1fr;
  }
}
/* --- Prompt de Geração e Carregamento de Subnets --- */
.generate-prompt {
  background: var(--surface-soft);
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 40px;
  text-align: center;
  margin: 20px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.generate-prompt p {
  font-size: 1.1rem;
  color: var(--text);
  margin: 0;
}

.generate-prompt strong {
  color: var(--primary);
  font-weight: 700;
}

#v4TruncateInfo {
  margin-top: 24px;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  text-align: center;
}

#v4TruncateInfo p {
  margin: 0 0 12px 0;
  font-size: 0.9rem;
  color: var(--muted);
}