:root {
  --primary-color: #6366f1;
  --secondary-color: #4f46e5;
  --bg-gradient-start: #0f172a;
  --bg-gradient-end: #1e1b4b;
  --card-bg: rgba(30, 41, 59, 0.45);
  --card-border: rgba(255, 255, 255, 0.08);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --input-bg: rgba(15, 23, 42, 0.6);
  --accent-alert: #ef4444;
}

.light-theme {
  --primary-color: #4f46e5;
  --secondary-color: #312e81;
  --bg-gradient-start: #f8fafc;
  --bg-gradient-end: #e2e8f0;
  --card-bg: rgba(255, 255, 255, 0.65);
  --card-border: rgba(0, 0, 0, 0.06);
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --input-bg: rgba(255, 255, 255, 0.9);
  --accent-alert: #dc2626;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Outfit', sans-serif;
  transition: background-color 0.3s ease, color 0.3s ease;
}

body {
  background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
  min-height: 100vh;
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
}

.background-decorations {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

.circle {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
}

.circle-1 {
  width: 400px;
  height: 400px;
  background: rgba(99, 102, 241, 0.15);
  top: -10%;
  right: -5%;
}

.circle-2 {
  width: 500px;
  height: 500px;
  background: rgba(239, 68, 68, 0.08);
  bottom: -10%;
  left: -10%;
}

.navbar {
  padding: 1.5rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--card-border);
  backdrop-filter: blur(8px);
}

.logo {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.logo span {
  color: var(--primary-color);
}

.nav-controls {
  display: flex;
  gap: 1rem;
}

.btn {
  padding: 0.6rem 1.2rem;
  border-radius: 12px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-icon {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-primary);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  cursor: pointer;
}

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

.btn-primary:hover {
  background: var(--secondary-color);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--card-bg);
  color: var(--text-primary);
  border: 1px solid var(--card-border);
}

.btn-logout {
  background: var(--accent-alert);
  color: #fff;
  border: none;
  padding: 0.6rem 1.2rem;
  border-radius: 12px;
  cursor: pointer;
}

.hidden {
  display: none !important;
}

.main-container {
  flex: 1;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

/* Glassmorphism Card Style */
.glass-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 24px;
  padding: 2rem;
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.2);
}

#auth-section {
  max-width: 450px;
  margin: 4rem auto;
}

h2, h3 {
  margin-bottom: 1.5rem;
  font-weight: 600;
}

.form-group {
  margin-bottom: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

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

label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 600;
}

input, select {
  padding: 0.8rem 1rem;
  border-radius: 12px;
  background: var(--input-bg);
  border: 1px solid var(--card-border);
  color: var(--text-primary);
  font-size: 1rem;
  outline: none;
}

input:focus, select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.auth-toggle {
  margin-top: 1.5rem;
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.auth-toggle span {
  color: var(--primary-color);
  cursor: pointer;
  font-weight: 600;
}

/* Dashboard Panel Layout */
.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
  padding: 1.2rem 2rem;
}

.selector-container {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.header-actions {
  display: flex;
  gap: 0.8rem;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.metric-card {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  padding: 1.5rem;
}

.metric-icon {
  font-size: 2.2rem;
}

.metric-info {
  display: flex;
  flex-direction: column;
}

.metric-info .label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.metric-info .value {
  font-size: 1.4rem;
  font-weight: 800;
  margin: 0.2rem 0;
}

.metric-info .sub-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* Map Grid and Layout */
.map-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

@media (max-width: 900px) {
  .map-grid {
    grid-template-columns: 1fr;
  }
}

.map-container {
  height: 450px;
  display: flex;
  flex-direction: column;
}

#map {
  flex: 1;
  width: 100%;
  border-radius: 16px;
  margin-top: 1rem;
  z-index: 1;
}

.logs-container {
  display: flex;
  flex-direction: column;
  max-height: 450px;
}

.log-list {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  margin-top: 1rem;
}

.log-item {
  padding: 0.8rem 1rem;
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.3);
  border-left: 4px solid var(--primary-color);
  font-size: 0.85rem;
  line-height: 1.4;
}

.log-item.sos {
  border-left-color: var(--accent-alert);
  background: rgba(239, 68, 68, 0.1);
}

.log-item.empty {
  border: none;
  text-align: center;
  color: var(--text-secondary);
  background: none;
}

.charts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

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

.chart-card {
  min-height: 300px;
}

/* SOS Banner */
.sos-banner {
  background: linear-gradient(90deg, #ef4444 0%, #b91c1c 100%);
  color: white;
  padding: 1rem 2rem;
  border-radius: 16px;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  box-shadow: 0 10px 15px -3px rgba(239, 68, 68, 0.4);
}

/* Modal styles */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  width: 90%;
  max-width: 400px;
  position: relative;
}

.close-btn {
  position: absolute;
  top: 1rem;
  right: 1.2rem;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-secondary);
}

.modal-input {
  width: 100%;
  margin: 1rem 0;
}

.pairing-key-display {
  margin-top: 1.5rem;
  text-align: center;
  padding: 1rem;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 12px;
}

#pairing-code-code {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: 4px;
  color: var(--primary-color);
  margin: 0.8rem 0;
}

.expires-info {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.footer {
  text-align: center;
  padding: 2rem;
  border-top: 1px solid var(--card-border);
  color: var(--text-secondary);
  font-size: 0.85rem;
}