:root {
  --bg-page: #f4f4f6;
  --bg-card: #ffffff;
  --bg-subtle: #f8f8fa;
  --bg-header: rgba(255, 255, 255, 0.96);

  --border-light: #e4e4e7;
  --border-strong: #d4d4d8;
  --border-ink: #18181b;

  --text-primary: #09090b;
  --text-secondary: #52525b;
  --text-muted: #71717a;

  --accent-ink: #09090b;
  --accent-blue: #0052cc;

  --color-success: #047857;
  --color-success-bg: #ecfdf5;
  --color-success-border: #6ee7b7;

  --color-warning: #b45309;
  --color-warning-bg: #fffbeb;
  --color-warning-border: #fcd34d;

  --color-danger: #b91c1c;
  --color-danger-bg: #fef2f2;
  --color-danger-border: #fca5a5;

  --color-info: #1d4ed8;
  --color-info-bg: #eff6ff;
  --color-info-border: #93c5fd;

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", "Menlo", "Consolas", monospace;

  --radius-lg: 2px;
  --radius-md: 2px;
  --radius-sm: 2px;

  --shadow-hard: 0 1px 2px rgba(9, 9, 11, 0.05);
}

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

body {
  background-color: var(--bg-page);
  background-image:
    linear-gradient(to right, rgba(24, 24, 27, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(24, 24, 27, 0.035) 1px, transparent 1px);
  background-size: 24px 24px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.5;
  min-height: 100vh;
  padding-bottom: 64px;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1380px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header & Search Controls — Stark Industrial White */
.top-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg-header);
  backdrop-filter: blur(8px);
  border-bottom: 2px solid var(--border-ink);
  padding: 14px 0;
  margin-bottom: 20px;
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--text-primary);
  border: 1px solid var(--border-ink);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.04em;
}

.brand-title h1 {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  text-transform: uppercase;
}

.brand-badge {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  background: #f4f4f5;
  color: var(--text-primary);
  border: 1px solid var(--border-ink);
  text-transform: uppercase;
}

.brand-title p {
  font-size: 0.76rem;
  color: var(--text-secondary);
  margin-top: 1px;
}

.search-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  max-width: 820px;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.ip-input-wrap {
  position: relative;
  flex: 1;
  max-width: 310px;
}

.ip-input {
  width: 100%;
  background: #ffffff;
  border: 1px solid var(--border-ink);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.84rem;
  outline: none;
  transition: box-shadow 0.15s;
}

.ip-input::placeholder {
  color: var(--text-muted);
}

.ip-input:focus {
  box-shadow: 3px 3px 0px var(--border-ink);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  border: 1px solid var(--border-ink);
  transition: all 0.12s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--text-primary);
  color: #ffffff;
}

.btn-primary:hover {
  background: #27272a;
  box-shadow: 2px 2px 0px rgba(9, 9, 11, 0.25);
  transform: translate(-1px, -1px);
}

.btn-secondary {
  background: #ffffff;
  border-color: var(--border-strong);
  color: var(--text-primary);
}

.btn-secondary:hover {
  border-color: var(--border-ink);
  background: #f4f4f5;
  box-shadow: 2px 2px 0px var(--border-ink);
  transform: translate(-1px, -1px);
}

.lang-switcher {
  display: inline-flex;
  align-items: center;
  background: #ffffff;
  border: 1px solid var(--border-ink);
  border-radius: var(--radius-sm);
  padding: 2px;
  gap: 2px;
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 5px 8px;
  border-radius: 1px;
  cursor: pointer;
  transition: all 0.12s ease;
}

.lang-btn:hover {
  color: var(--text-primary);
  background: #f4f4f5;
}

.lang-btn.active {
  background: var(--text-primary);
  color: #ffffff;
}

/* Status Banner */
.status-bar-inline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background: #ffffff;
  border: 1px solid var(--border-strong);
  border-left: 4px solid var(--border-ink);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  margin-bottom: 20px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-primary);
  box-shadow: var(--shadow-hard);
}

.status-banner {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 0;
  background: var(--color-success);
}

/* Section Headings — Stark Swiss Grid Style */
.section-heading {
  font-size: 0.92rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  margin: 28px 0 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--border-ink);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Multi-Exit Simultaneous Exposure Grid */
.exits-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 24px;
}

@media (max-width: 1180px) {
  .exits-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 680px) {
  .exits-grid {
    grid-template-columns: 1fr;
  }
}

.exit-card {
  background: #ffffff;
  border: 1px solid var(--border-strong);
  border-top: 3px solid var(--border-ink);
  border-radius: var(--radius-md);
  padding: 16px;
  box-shadow: var(--shadow-hard);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 10px;
  position: relative;
}

.exit-card.exit-domestic {
  border-top-color: var(--color-success);
}

.exit-card.exit-cf {
  border-top-color: var(--color-warning);
}

.exit-card.exit-webrtc {
  border-top-color: var(--accent-blue);
}

.exit-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-light);
}

.exit-channel-name {
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--text-secondary);
}

.exit-ip-num {
  font-family: var(--font-mono);
  font-size: 1.22rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin: 4px 0 2px;
  word-break: break-all;
}

.exit-geo-line {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
  min-height: 1.25em;
}

.exit-isp-line {
  font-size: 0.74rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.exit-tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
  padding-top: 10px;
  border-top: 1px solid var(--border-light);
}

/* Main Cards & Grid */
.hero-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-top: 2px solid var(--border-ink);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-hard);
}

.card-col-4 {
  grid-column: span 4;
}

.card-col-6 {
  grid-column: span 6;
}

.card-col-8 {
  grid-column: span 8;
}

.card-col-12 {
  grid-column: span 12;
}

@media (max-width: 1120px) {
  .card-col-4, .card-col-6, .card-col-8 {
    grid-column: span 12;
  }
}

.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-light);
}

.card-title {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.card-subtitle {
  font-size: 0.74rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

/* Score Gauge Card */
.score-gauge-layout {
  display: flex;
  align-items: center;
  gap: 18px;
}

.gauge-box {
  position: relative;
  width: 120px;
  height: 120px;
  flex-shrink: 0;
}

.gauge-svg {
  width: 120px;
  height: 120px;
  transform: rotate(-90deg);
}

.gauge-bg {
  fill: none;
  stroke: #e4e4e7;
  stroke-width: 10;
}

.gauge-progress {
  fill: none;
  stroke: var(--text-primary);
  stroke-width: 10;
  stroke-linecap: butt;
  stroke-dasharray: 339.292;
  stroke-dashoffset: 339.292;
  transition: stroke-dashoffset 0.6s ease, stroke 0.3s;
}

.gauge-center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.gauge-number {
  font-size: 1.95rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--text-primary);
  line-height: 1;
}

.gauge-unit {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-top: 4px;
}

.score-details {
  flex: 1;
}

.verdict-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.pill-success {
  background: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid var(--color-success-border);
}

.pill-warning {
  background: var(--color-warning-bg);
  color: var(--color-warning);
  border: 1px solid var(--color-warning-border);
}

.pill-danger {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border: 1px solid var(--color-danger-border);
}

.pill-info {
  background: var(--color-info-bg);
  color: var(--color-info);
  border: 1px solid var(--color-info-border);
}

.score-desc {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.mini-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.mini-metric {
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
}

.mini-metric-label {
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--text-muted);
}

.mini-metric-val {
  font-size: 0.82rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--text-primary);
}

/* IP Identity & Datacenter Verdict Card */
.ip-hero-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-subtle);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  margin-bottom: 12px;
}

.ip-address-big {
  font-family: var(--font-mono);
  font-size: 1.28rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.ip-location-text {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-top: 2px;
}

.type-badges-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.type-badge-box {
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
}

.type-badge-label {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.type-badge-value {
  font-size: 0.84rem;
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Key-Value List */
.kv-list {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.kv-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 12px;
  background: #ffffff;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.81rem;
}

.kv-row:last-child {
  border-bottom: none;
}

.kv-row:nth-child(even) {
  background: var(--bg-subtle);
}

.kv-key {
  color: var(--text-secondary);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.kv-val {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--text-primary);
  text-align: right;
  word-break: break-all;
}

/* Multi-Database Matrix Table */
.matrix-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border-strong);
}

.matrix-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.81rem;
  background: #ffffff;
}

.matrix-table th,
.matrix-table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border-light);
  border-right: 1px solid var(--border-light);
  white-space: nowrap;
}

.matrix-table th:last-child,
.matrix-table td:last-child {
  border-right: none;
}

.matrix-table th {
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  background: #f4f4f5;
  border-bottom: 2px solid var(--border-ink);
}

.matrix-table tr:hover td {
  background: #f8fafc;
}

.db-name {
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.db-tag {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  padding: 1px 5px;
  border-radius: 1px;
  background: #f4f4f5;
  color: var(--text-secondary);
  border: 1px solid var(--border-strong);
  font-weight: 700;
}

/* Industrial Badges / Tags */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 7px;
  border-radius: var(--radius-sm);
  font-size: 0.72rem;
  font-weight: 700;
  font-family: var(--font-mono);
}

.tag-clean {
  background: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid var(--color-success-border);
}

.tag-warn {
  background: var(--color-warning-bg);
  color: var(--color-warning);
  border: 1px solid var(--color-warning-border);
}

.tag-risk {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border: 1px solid var(--color-danger-border);
}

.tag-neutral {
  background: #f4f4f5;
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
}

.tag-info {
  background: var(--color-info-bg);
  color: var(--color-info);
  border: 1px solid var(--color-info-border);
}

/* Blacklist Bar */
.blacklist-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border-light);
}

.preset-label {
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--text-primary);
}

/* Timezone & Consistency Comparison Box */
.compare-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 12px;
}

.compare-box {
  background: var(--bg-subtle);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 12px;
}

.compare-box-title {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.compare-box-main {
  font-family: var(--font-mono);
  font-size: 0.96rem;
  font-weight: 800;
  color: var(--text-primary);
}

.compare-box-sub {
  font-size: 0.74rem;
  color: var(--text-secondary);
  margin-top: 4px;
  font-family: var(--font-mono);
}

/* Browser Fingerprint Visuals */
.fp-master-banner {
  background: #ffffff;
  border: 1px solid var(--border-ink);
  border-left: 5px solid var(--border-ink);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  margin-bottom: 16px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  box-shadow: var(--shadow-hard);
}

.fp-hash-value {
  font-family: var(--font-mono);
  font-size: 0.98rem;
  font-weight: 800;
  color: var(--text-primary);
  word-break: break-all;
}

.canvas-preview-box {
  background: var(--bg-subtle);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  margin-bottom: 12px;
}

#fp-canvas-display {
  max-width: 100%;
  height: auto;
  border-radius: 1px;
  border: 1px solid var(--border-ink);
}

.font-chips-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  max-height: 185px;
  overflow-y: auto;
  padding: 6px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
}

.font-chip {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 1px;
  background: #ffffff;
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
}

.font-chip.os-mac {
  background: var(--color-info-bg);
  border-color: var(--color-info-border);
  color: var(--color-info);
}

.font-chip.os-win {
  background: #f3e8ff;
  border-color: #d8b4fe;
  color: #6b21a8;
}

/* Diagnosis List */
.diagnosis-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.diagnosis-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-strong);
  background: #ffffff;
}

.diagnosis-item.diag-danger {
  border-left: 4px solid var(--color-danger);
  background: #fffafa;
}

.diagnosis-item.diag-warning {
  border-left: 4px solid var(--color-warning);
  background: #fffdf5;
}

.diagnosis-item.diag-success {
  border-left: 4px solid var(--color-success);
  background: #f8fdfa;
}

.diag-icon {
  font-size: 1.15rem;
  line-height: 1.2;
}

.diag-content h4 {
  font-size: 0.88rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 3px;
}

.diag-content p {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--text-primary);
  color: #ffffff;
  border: 1px solid var(--border-ink);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  box-shadow: 4px 4px 0px rgba(9, 9, 11, 0.2);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: all 0.2s ease;
  z-index: 100;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}