:root {
  --bg-color: #1a2639;
  --neon-white: #ffffff;
  --neon-white-glow: 0 0 5px #ffffff, 0 0 10px #ffffff;
  --neon-pink: #ff33cc;
  --neon-pink-glow: 0 0 5px #ff33cc, 0 0 15px #ff33cc;
  --bar-bg: rgba(255, 255, 255, 0.1);
}

body {
  background-color: var(--bg-color);
  color: var(--neon-white);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  text-shadow: var(--neon-white-glow);
}

.container {
  padding: 10px;
  max-width: 1200px;
  margin: 0 auto;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0;
  border-bottom: 1px solid rgba(255,255,255,0.2);
  margin-bottom: 20px;
}

h1 {
  margin: 0;
  font-size: 1.5rem;
  letter-spacing: 2px;
}

.settings-btn {
  background: none;
  border: 1px solid var(--neon-white);
  color: var(--neon-white);
  padding: 5px 15px;
  cursor: pointer;
  border-radius: 5px;
  box-shadow: var(--neon-white-glow);
  text-shadow: var(--neon-white-glow);
  transition: all 0.3s;
}
.settings-btn:active {
  transform: scale(0.95);
}

.settings-panel {
  display: none;
  background: rgba(0,0,0,0.3);
  padding: 20px;
  border-radius: 10px;
  margin-bottom: 20px;
  border: 1px solid rgba(255,255,255,0.1);
}

.settings-panel.active {
  display: block;
}

.form-group {
  margin-bottom: 15px;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  font-size: 0.9rem;
}

.form-group input, .form-group textarea {
  width: 100%;
  padding: 10px;
  box-sizing: border-box;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--neon-white);
  border-radius: 5px;
  outline: none;
}
.form-group input:focus, .form-group textarea:focus {
  border-color: var(--neon-white);
  box-shadow: var(--neon-white-glow);
}

.btn-save {
  background: var(--neon-white);
  color: var(--bg-color);
  border: none;
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
  font-weight: bold;
  box-shadow: var(--neon-white-glow);
  width: 100%;
}

.monitor-card {
  background: rgba(0,0,0,0.2);
  border-radius: 10px;
  padding: 15px;
  margin-bottom: 15px;
  border: 1px solid rgba(255,255,255,0.1);
  display: flex;
  flex-direction: column;
}

.monitor-card.error {
  border-color: var(--neon-pink);
  box-shadow: var(--neon-pink-glow);
  color: var(--neon-pink);
  text-shadow: var(--neon-pink-glow);
}

.monitor-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.url-title {
  font-size: 1.1rem;
  font-weight: bold;
  word-break: break-all;
}

.status-badge {
  padding: 3px 8px;
  border-radius: 3px;
  font-size: 0.8rem;
  border: 1px solid var(--neon-white);
  text-transform: uppercase;
}
.monitor-card.error .status-badge {
  border-color: var(--neon-pink);
  color: var(--neon-pink);
}

.stats {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  margin-bottom: 15px;
}

/* Battery Health Bar - Refined */
.battery-wrapper {
  margin-bottom: 15px;
}
.battery-container {
  width: 100%;
  height: 26px;
  border: 2px solid var(--neon-white);
  border-radius: 4px;
  padding: 2px;
  box-sizing: border-box;
  position: relative;
  background: rgba(0,0,0,0.2);
}
.battery-container::after {
  content: '';
  position: absolute;
  right: -7px;
  top: 5px;
  width: 5px;
  height: 12px;
  background: var(--neon-white);
  border-radius: 0 2px 2px 0;
  box-shadow: var(--neon-white-glow);
}
.monitor-card.error .battery-container { border-color: var(--neon-pink); }
.monitor-card.error .battery-container::after { 
  background: var(--neon-pink); 
  box-shadow: var(--neon-pink-glow);
}

.battery-level {
  height: 100%;
  background: var(--neon-white);
  width: 100%;
  transition: width 0.4s cubic-bezier(0.1, 0.7, 0.1, 1);
  box-shadow: var(--neon-white-glow);
  border-radius: 1px;
}
.monitor-card.error .battery-level {
  background: var(--neon-pink);
  box-shadow: var(--neon-pink-glow);
}

.battery-text {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: bold;
  color: var(--bg-color);
  text-shadow: none;
  z-index: 2;
  mix-blend-mode: screen; /* Inverts color over the filled bar vs empty background */
}
/* Fallback for mix-blend-mode if unsupported/hard to read */
@supports not (mix-blend-mode: screen) {
  .battery-text {
    color: #fff;
    mix-blend-mode: normal;
  }
}
.monitor-card.error .battery-text {
  mix-blend-mode: normal;
  color: #fff;
}

/* Candlestick Chart (simulated) */
.chart-container {
  height: 80px;
  display: flex;
  align-items: flex-end;
  gap: 2px;
  overflow: hidden;
  border-bottom: 2px solid rgba(255,255,255,0.4);
  padding-bottom: 2px;
  border-radius: 0 0 4px 4px;
  background: rgba(0,0,0,0.1);
  padding: 5px;
}
.monitor-card.error .chart-container {
  border-bottom-color: rgba(255,51,204,0.6);
}

.chart-bar-container {
  flex: 1;
  height: 100%;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}
.chart-bar-container.empty {
  /* empty placeholder */
}

.chart-bar {
  width: 80%;
  background: var(--neon-white);
  min-height: 2px; /* Minimum visual height even for 0ms */
  transition: height 0.2s ease-out;
  box-shadow: var(--neon-white-glow);
  border-radius: 1px 1px 0 0;
}
.chart-bar.error {
  background: var(--neon-pink);
  box-shadow: var(--neon-pink-glow);
}

@media (min-width: 768px) {
  .dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
  }
}