@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --bg-primary: #07090e;
  --bg-secondary: rgba(15, 18, 28, 0.75);
  --bg-card: rgba(18, 22, 36, 0.55);
  --bg-card-hover: rgba(26, 32, 50, 0.7);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(0, 230, 118, 0.3);
  --border-focus: rgba(10, 132, 255, 0.5);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --color-success: #00e676;
  --color-success-rgb: 0, 230, 118;
  --color-warning: #ff9100;
  --color-warning-rgb: 255, 145, 0;
  --color-danger: #ff1744;
  --color-danger-rgb: 255, 23, 68;
  --color-info: #00e5ff;
  --color-info-rgb: 0, 229, 255;
  --color-accent: #7c4dff;
  --color-accent-rgb: 124, 77, 255;
  
  --font-title: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 12px 40px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 30px rgba(0, 230, 118, 0.2);
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(124, 77, 255, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 85% 20%, rgba(0, 229, 255, 0.07) 0%, transparent 40%),
    radial-gradient(circle at 50% 80%, rgba(0, 230, 118, 0.05) 0%, transparent 50%);
  background-attachment: fixed;
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow-x: hidden;
  position: relative;
}

/* Header style */
header {
  max-width: 1240px;
  width: 100%;
  margin: 0 auto;
  padding: 1.75rem 1.5rem 0.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-section {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.logo-icon {
  width: 2.2rem;
  height: 2.2rem;
  color: var(--color-info);
  filter: drop-shadow(0 0 8px rgba(0, 229, 255, 0.5));
  animation: pulse-slow 3.5s infinite ease-in-out;
}

h1 {
  font-family: var(--font-title);
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 60%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.badge-version {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.25rem 0.6rem;
  background: rgba(0, 229, 255, 0.1);
  border: 1px solid rgba(0, 229, 255, 0.25);
  border-radius: 99px;
  color: var(--color-info);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Main Dashboard layout */
main {
  max-width: 1240px;
  width: 100%;
  margin: 0 auto;
  padding: 1rem 1.5rem 3rem;
  flex-grow: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 900px) {
  main {
    grid-template-columns: 3fr 1fr;
  }
  
  .full-width-section {
    grid-column: 1 / -1;
    width: 100%;
  }
}

/* Glassmorphism Card style */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal), transform var(--transition-fast);
}

.card:hover {
  border-color: rgba(255, 255, 255, 0.16);
}

/* Connection Status Hero Banner */
.status-hero {
  grid-column: 1 / -1;
  width: 100%;
  box-sizing: border-box;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 2.25rem 2.5rem;
  background: linear-gradient(135deg, rgba(20, 26, 42, 0.8) 0%, rgba(12, 16, 26, 0.85) 100%);
  border: 1px solid var(--border-color);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
  min-height: 140px; /* Lock height to prevent layout shifts */
}

.status-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-success), transparent);
  transition: background var(--transition-normal);
}

.status-hero.state-warning::before {
  background: linear-gradient(90deg, transparent, var(--color-warning), transparent);
}

.status-hero.state-disconnected::before {
  background: linear-gradient(90deg, transparent, var(--color-danger), transparent);
}

.status-info-wrapper {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  min-height: 70px; /* Reserved space for status text transitions */
}

.status-glow-container {
  position: relative;
  width: 4.5rem;
  height: 4.5rem;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.status-glow-ring {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: rgba(var(--color-success-rgb), 0.15);
  animation: pulse-ring 2s infinite cubic-bezier(0.215, 0.610, 0.355, 1);
  transition: background-color var(--transition-normal);
}

.status-dot {
  width: 1.65rem;
  height: 1.65rem;
  border-radius: 50%;
  background-color: var(--color-success);
  box-shadow: 0 0 20px var(--color-success);
  z-index: 1;
  transition: background-color var(--transition-normal), box-shadow var(--transition-normal);
}

.status-text-title {
  font-family: var(--font-title);
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.35rem;
}

.status-subtitle {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.4;
  min-height: 2.8em; /* Reserve exactly 2 lines on desktop and mobile to prevent layout shift */
  display: flex;
  align-items: center;
}

.hero-right-side {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

/* Circular Stability Score Widget */
.stability-widget {
  position: relative;
  width: 110px;
  height: 110px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stability-ring {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.stability-ring-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.08);
  stroke-width: 8;
}

.stability-ring-bar {
  fill: none;
  stroke: var(--color-success);
  stroke-width: 8;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.6s cubic-bezier(0.16, 1, 0.3, 1), stroke var(--transition-normal);
  filter: drop-shadow(0 0 6px rgba(var(--color-success-rgb), 0.5));
}

.stability-content {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.stability-value {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.stability-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  margin-top: 0.25rem;
  font-weight: 600;
}

.quick-stats {
  display: flex;
  gap: 2rem;
}

.quick-stat-item {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.quick-stat-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: 700;
}

.quick-stat-value {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Recommendations Box */
.recommendations-box {
  display: flex;
  gap: 0.6rem;
  margin-top: 0.85rem;
  flex-wrap: wrap;
}

.recommendation-badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  transition: all var(--transition-normal);
}

.recommendation-badge.badge-active {
  background: rgba(0, 230, 118, 0.12);
  border-color: rgba(0, 230, 118, 0.3);
  color: var(--color-success);
}

.recommendation-badge.badge-warning {
  background: rgba(255, 145, 0, 0.12);
  border-color: rgba(255, 145, 0, 0.3);
  color: var(--color-warning);
}

.recommendation-badge.badge-inactive {
  background: rgba(255, 23, 68, 0.12);
  border-color: rgba(255, 23, 68, 0.3);
  color: var(--color-danger);
}

/* Dashboard View Switcher Tabs */
.dashboard-switcher {
  display: flex;
  gap: 0.75rem;
  background: rgba(15, 19, 30, 0.7);
  backdrop-filter: blur(20px);
  padding: 0.4rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.switch-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.75rem 1.25rem;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: calc(var(--radius-md) - 4px);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.switch-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.switch-btn.active {
  background: linear-gradient(135deg, rgba(30, 40, 65, 0.8) 0%, rgba(20, 28, 48, 0.9) 100%);
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

/* Target Tabs Selector */
.target-tabs-container {
  display: flex;
  gap: 0.75rem;
  overflow-x: auto;
  padding-bottom: 0.25rem;
}

.target-tab {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.65rem 1.2rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-family: var(--font-title);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  white-space: nowrap;
}

.target-tab:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.15);
}

.target-tab.active {
  background: rgba(24, 30, 48, 0.9);
  color: var(--text-primary);
  border-color: rgba(0, 229, 255, 0.4);
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.15);
}

.tab-dot {
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
  background: var(--text-muted);
}

.dot-google { background: var(--color-info); box-shadow: 0 0 8px var(--color-info); }
.dot-cloudflare { background: var(--color-accent); box-shadow: 0 0 8px var(--color-accent); }
.dot-custom { background: var(--color-success); box-shadow: 0 0 8px var(--color-success); }

/* Metrics Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.25rem;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  transition: all var(--transition-normal);
}

.metric-card:hover {
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.metric-icon-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  font-weight: 600;
}

.metric-icon-label svg {
  width: 1.1rem;
  height: 1.1rem;
  color: var(--color-info);
}

.metric-value {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.metric-unit {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}

/* Real-time Chart Card */
.chart-card {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.chart-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-title);
  font-size: 1.1rem;
  font-weight: 700;
}

.chart-title svg {
  color: var(--color-info);
}

.chart-container {
  position: relative;
  width: 100%;
  height: 280px;
}

/* Histogram Card */
.histogram-card {
  display: flex;
  flex-direction: column;
}

.histogram-segments {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.histogram-segment-wrapper {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.segment-label-wrapper {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
}

.segment-label {
  color: var(--text-secondary);
  font-weight: 500;
}

.segment-pct {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-primary);
}

.segment-bar-bg {
  height: 10px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 99px;
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.segment-bar-fill {
  height: 100%;
  border-radius: 99px;
  transition: width 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.fill-green { background: linear-gradient(90deg, #00e676, #69f0ae); }
.fill-blue { background: linear-gradient(90deg, #00e5ff, #40c4ff); }
.fill-warning { background: linear-gradient(90deg, #ff9100, #ffd740); }
.fill-danger { background: linear-gradient(90deg, #ff1744, #ff5252); }

/* Heatmap Calendar Card */
.heatmap-card {
  display: flex;
  flex-direction: column;
}

.heatmap-grid-container {
  display: flex;
  width: 100%;
}

.heatmap-grid-scroll {
  width: 100%;
}

.heatmap-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
  width: 100%;
}

.heatmap-cell {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.04);
  border: none;
  transition: transform var(--transition-fast), background-color 0.2s ease;
}

.heatmap-cell:hover {
  transform: scale(2.2);
  z-index: 10;
}

.cell-empty { background: rgba(255, 255, 255, 0.04); }
.cell-green { background: #00e676; box-shadow: 0 0 4px rgba(0, 230, 118, 0.4); }
.cell-lightgreen { background: #69f0ae; }
.cell-orange { background: #ff9100; }
.cell-red { background: #ff1744; box-shadow: 0 0 4px rgba(255, 23, 68, 0.4); }

.cell-live-pulsing {
  animation: defragPulse 1.2s infinite ease-in-out;
  z-index: 5;
}

@keyframes defragPulse {
  0% { transform: scale(1); opacity: 0.4; box-shadow: 0 0 0px currentColor; }
  50% { transform: scale(1.6); opacity: 1; box-shadow: 0 0 8px currentColor; }
  100% { transform: scale(1); opacity: 0.4; box-shadow: 0 0 0px currentColor; }
}

.heatmap-x-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-top: 0.5rem;
}

.heatmap-legend {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1rem;
}

.legend-text {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.legend-colors {
  display: flex;
  gap: 4px;
}

.legend-color-cell {
  width: 12px;
  height: 12px;
  border-radius: 2px;
}

/* SPEEDTEST VIEW */
.speedtest-main-card {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding: 2.5rem;
}

.speedtest-header-pane {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.speedtest-status-text {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.speedtest-gauges-container {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
  margin: 1rem 0;
}

.speed-gauge-card {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.gauge-ring-container {
  position: relative;
  width: 170px;
  height: 170px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gauge-ring-svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.gauge-ring-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.06);
  stroke-width: 10;
}

.gauge-ring-fill {
  fill: none;
  stroke-width: 10;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.4s ease;
}

.download-fill {
  stroke: var(--color-info);
  filter: drop-shadow(0 0 8px rgba(0, 229, 255, 0.5));
}

.upload-fill {
  stroke: var(--color-accent);
  filter: drop-shadow(0 0 8px rgba(124, 77, 255, 0.5));
}

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

.gauge-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.gauge-value {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0.1rem 0;
}

.gauge-unit {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.speedtest-progress-bar-wrapper {
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
}

.speedtest-progress-track {
  height: 8px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 99px;
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.speedtest-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--color-info), var(--color-accent));
  border-radius: 99px;
  transition: width 0.2s ease;
}

.speedtest-action-area {
  display: flex;
  justify-content: center;
}

.btn-large-speedtest {
  padding: 1rem 3rem !important;
  font-size: 1.1rem !important;
  border-radius: 99px !important;
  box-shadow: 0 0 24px rgba(0, 229, 255, 0.3) !important;
}

/* Speedtest Diagnostics */
.speedtest-diag-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 1.25rem;
}

@media (min-width: 768px) {
  .speedtest-diag-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.diag-section {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
}

.diag-section h3 {
  font-family: var(--font-title);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.diag-details-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.diag-detail-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

.diag-item-label {
  color: var(--text-secondary);
}

.diag-item-value {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-primary);
}

.ua-value {
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.75rem;
}

/* Sidebar Controls */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-title);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.section-title svg {
  width: 1.1rem;
  height: 1.1rem;
  color: var(--color-info);
}

.control-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.control-label {
  font-size: 0.88rem;
  font-weight: 600;
}

.control-desc {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 0.15rem;
}

/* Toggle Switch */
.switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.12);
  transition: .3s cubic-bezier(0.16, 1, 0.3, 1);
  border-radius: 24px;
  border: 1px solid var(--border-color);
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 2px;
  bottom: 2px;
  background-color: white;
  transition: .3s cubic-bezier(0.16, 1, 0.3, 1);
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--color-success);
  border-color: transparent;
}

input:checked + .slider:before {
  transform: translateX(20px);
}

/* Inputs & Buttons */
.select-input {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.45rem 0.75rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.85rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.select-input:focus {
  border-color: var(--color-info);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-title);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  transition: all var(--transition-normal);
}

.btn:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-info) 0%, #00b0ff 100%);
  border-color: transparent;
  color: #000;
  font-weight: 700;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #40c4ff 0%, #00e5ff 100%);
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.4);
}

.btn-group {
  display: flex;
  gap: 0.5rem;
  margin-top: 1.25rem;
}

/* Incident Log */
.incidents-container {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  max-height: 240px;
  overflow-y: auto;
}

.incident-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 0.8rem;
  background: rgba(255, 23, 68, 0.08);
  border: 1px solid rgba(255, 23, 68, 0.2);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
}

.incident-time {
  font-family: var(--font-mono);
  color: var(--text-secondary);
}

.incident-duration {
  font-weight: 600;
  color: var(--color-danger);
}

/* Footer */
footer {
  max-width: 1240px;
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-color);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.footer-link {
  color: var(--color-info);
  text-decoration: none;
}

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

/* View Switcher Visibility Rules */
body.active-view-latency .speedtest-only {
  display: none !important;
}

body.active-view-speedtest .latency-only {
  display: none !important;
}

/* Animations */
@keyframes pulse-slow {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.05); }
}

@keyframes pulse-ring {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.25); opacity: 0.3; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

/* ==========================================
   Responsive Breakpoints: Mobile & Tablet
   ========================================== */
@media (max-width: 768px) {
  header {
    padding: 1.25rem 1rem 0.5rem;
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  h1 {
    font-size: 1.35rem;
  }

  .logo-icon {
    width: 1.8rem;
    height: 1.8rem;
  }

  main {
    padding: 0.75rem 0.85rem 2rem;
    gap: 1rem;
  }

  /* Status Hero Mobile Card */
  .status-hero {
    flex-direction: column;
    align-items: stretch;
    gap: 1.25rem;
    padding: 1.25rem 1rem;
    text-align: center;
  }

  .status-info-wrapper {
    flex-direction: column;
    gap: 0.75rem;
    min-height: 110px;
  }

  .status-text-title {
    font-size: 1.5rem;
  }

  .status-subtitle {
    font-size: 0.85rem;
    justify-content: center;
    min-height: 2.8em;
  }

  .hero-right-side {
    flex-direction: column;
    width: 100%;
    gap: 1.25rem;
    align-items: center;
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
  }

  .quick-stats {
    width: 100%;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
  }

  .quick-stat-item {
    padding: 0.5rem 0.25rem;
  }

  .quick-stat-label {
    font-size: 0.65rem;
  }

  .quick-stat-value {
    font-size: 0.85rem;
  }

  /* Target & Switcher Tabs on Mobile */
  .target-tabs-container {
    flex-wrap: wrap;
    gap: 0.4rem;
  }

  .target-tab {
    flex: 1 1 calc(50% - 0.4rem);
    padding: 0.5rem 0.6rem;
    font-size: 0.75rem;
    justify-content: center;
  }

  .dashboard-switcher {
    gap: 0.5rem;
  }

  .switch-btn {
    padding: 0.6rem 0.75rem;
    font-size: 0.8rem;
  }

  /* Latency & Speed Gauges Cards */
  .card {
    padding: 1rem;
    border-radius: 14px;
  }

  .speedtest-gauges-container {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  /* Speed Test History & Diagnostic Grid */
  .speedtest-diag-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .diag-detail-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
    padding-bottom: 0.4rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  }

  .diag-detail-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }

  .diag-item-label {
    font-size: 0.78rem;
    font-weight: 500;
  }

  .diag-item-value {
    text-align: left;
    word-break: break-word;
    font-size: 0.82rem;
  }

  .ua-value {
    max-width: 100%;
    white-space: normal;
    word-break: break-all;
  }

  /* Heatmap Cell Touch Targets */
  .heatmap-cell {
    width: 7px;
    height: 7px;
  }

  /* Footer Mobile Layout */
  footer {
    flex-direction: column;
    gap: 0.75rem;
    padding: 1.25rem 1rem;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .quick-stats {
    grid-template-columns: 1fr 1fr;
  }

  .target-tab {
    flex: 1 1 100%;
  }

  .stability-widget {
    width: 95px;
    height: 95px;
  }

  .stability-value {
    font-size: 1.15rem;
  }

  .stability-label {
    font-size: 0.6rem;
    letter-spacing: 0.05em;
  }
}