:root {
  --bg-primary: #0b0f19;
  --bg-surface: #151d30;
  --bg-surface-elevated: #1e2942;
  --accent: #0ea5e9;
  --accent-hover: #38bdf8;
  --accent-glow: rgba(14, 165, 233, 0.35);
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --border: #2d3b55;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-family);
  user-select: none;
}

#app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  position: relative;
}

/* Header */
header {
  padding: 12px 16px;
  background-color: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
  flex-shrink: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  font-size: 1.5rem;
  background: linear-gradient(135deg, #f59e0b, #ef4444);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-text h1 {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #fff;
}

.brand-text p {
  font-size: 0.7rem;
  color: var(--text-muted);
}

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

.btn-icon {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border);
  color: var(--text-main);
  border-radius: 8px;
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-icon:hover {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

/* Status Pill */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(148, 163, 184, 0.15);
  color: var(--text-muted);
  border: 1px solid rgba(148, 163, 184, 0.25);
  transition: all 0.3s ease;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #94a3b8;
}

.status-pill.active {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border-color: rgba(16, 185, 129, 0.4);
}

.status-pill.active .status-dot {
  background: #10b981;
  box-shadow: 0 0 10px #10b981;
  animation: pulse-dot 1.5s infinite;
}

.status-pill.alarm {
  background: rgba(239, 68, 68, 0.2);
  color: #f87171;
  border-color: rgba(239, 68, 68, 0.5);
  animation: pulse-alarm-bar 0.8s infinite alternate;
}

.status-pill.alarm .status-dot {
  background: #ef4444;
  box-shadow: 0 0 12px #ef4444;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

/* Main map area */
#map-wrapper {
  position: relative;
  flex: 1;
  width: 100%;
  min-height: 200px;
}

#map {
  width: 100%;
  height: 100%;
  background: #192231;
}

/* Floating Search Bar */
.search-container {
  position: absolute;
  top: 12px;
  left: 12px;
  right: 12px;
  z-index: 500;
  display: flex;
  gap: 8px;
}

.search-input-wrapper {
  position: relative;
  flex: 1;
}

.search-input {
  width: 100%;
  padding: 10px 14px 10px 38px;
  background: rgba(15, 23, 42, 0.88);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: #fff;
  font-size: 0.85rem;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
  outline: none;
  transition: border-color 0.2s;
}

.search-input:focus {
  border-color: var(--accent);
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.btn-locate {
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  color: var(--text-main);
  border-radius: 12px;
  padding: 0 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.4);
  cursor: pointer;
}

.btn-locate:active {
  transform: scale(0.95);
}

/* Controls Bottom Sheet / Panel */
#controls-panel {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 900;
  flex-shrink: 0;
  box-shadow: 0 -10px 25px rgba(0, 0, 0, 0.35);
  max-height: 48dvh;
  overflow-y: auto;
}

.info-cards-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.info-card {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 12px;
}

.info-card-label {
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}

.info-card-val {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
}

.info-card-sub {
  font-size: 0.7rem;
  color: var(--accent-hover);
  margin-top: 2px;
}

/* Radius Control */
.radius-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.section-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-main);
}

.radius-chips {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 2px;
}

.chip {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 0.78rem;
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s;
  flex: 1;
  text-align: center;
}

.chip.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  font-weight: 600;
  box-shadow: 0 0 12px var(--accent-glow);
}

/* Action Button */
.btn-toggle-alarm {
  width: 100%;
  padding: 14px;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.btn-toggle-alarm.activate {
  background: linear-gradient(135deg, #0ea5e9, #0284c7);
  color: #fff;
}

.btn-toggle-alarm.activate:hover {
  background: linear-gradient(135deg, #38bdf8, #0ea5e9);
  box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-toggle-alarm.activate:active {
  transform: scale(0.98);
}

.btn-toggle-alarm.deactivate {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  color: #fff;
  animation: pulse-danger-btn 2s infinite;
}

@keyframes pulse-danger-btn {
  0%, 100% { box-shadow: 0 0 10px rgba(239, 68, 68, 0.3); }
  50% { box-shadow: 0 0 20px rgba(239, 68, 68, 0.6); }
}

/* Footer / Sound & Pocket mode */
footer {
  padding: 8px 16px;
  background: #090d16;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

.sound-picker-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sound-select {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border);
  color: var(--text-main);
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.75rem;
  outline: none;
}

.btn-small {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border);
  color: var(--text-main);
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.75rem;
  cursor: pointer;
}

/* FULLSCREEN ALARM OVERLAY */
#alarm-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: #000;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 24px;
  text-align: center;
  animation: flashing-bg 0.6s infinite alternate;
}

#alarm-modal.show {
  display: flex;
}

@keyframes flashing-bg {
  0% { background: #b91c1c; }
  100% { background: #1e1b4b; }
}

.alarm-bell-icon {
  font-size: 5rem;
  margin-bottom: 20px;
  animation: shake 0.3s infinite;
}

@keyframes shake {
  0% { transform: rotate(-15deg); }
  50% { transform: rotate(15deg); }
  100% { transform: rotate(-15deg); }
}

.alarm-title {
  font-size: 2.2rem;
  font-weight: 900;
  color: #fff;
  text-transform: uppercase;
  margin-bottom: 12px;
  text-shadow: 0 4px 10px rgba(0,0,0,0.8);
}

.alarm-subtitle {
  font-size: 1.1rem;
  color: #fde047;
  font-weight: 600;
  margin-bottom: 30px;
}

.btn-stop-alarm {
  background: #22c55e;
  color: #052e16;
  border: none;
  font-size: 1.4rem;
  font-weight: 900;
  padding: 20px 40px;
  border-radius: 9999px;
  cursor: pointer;
  box-shadow: 0 0 35px #22c55e;
  animation: pulse-button 0.8s infinite alternate;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

@keyframes pulse-button {
  0% { transform: scale(1); box-shadow: 0 0 20px #22c55e; }
  100% { transform: scale(1.08); box-shadow: 0 0 45px #22c55e; }
}

/* Pocket Mode Overlay */
#pocket-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: #020408;
  z-index: 8000;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 30px;
  text-align: center;
}

#pocket-overlay.show {
  display: flex;
}

.pocket-hint {
  font-size: 0.9rem;
  color: #475569;
  line-height: 1.5;
  margin-top: 15px;
}