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

:root {
  --navy: #0A1628;
  --navy-2: #0F2040;
  --navy-3: #1E3A5F;
  --cyan: #00D4FF;
  --red: #FF3B3B;
  --green: #00C896;
  --text: #FFFFFF;
  --text-muted: #8BA8CC;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

body {
  font-family: var(--font);
  background: var(--navy);
  color: var(--text);
  min-height: 100vh;
  max-width: 480px;
  margin: 0 auto;
  padding-bottom: 80px;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  position: sticky;
  top: 0;
  background: var(--navy);
  z-index: 100;
  border-bottom: 0.5px solid var(--navy-3);
}
.header-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 500;
  color: var(--text);
}
.header-logo i { color: var(--cyan); font-size: 22px; }
.header-btn {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1.5px solid var(--navy-3);
  background: transparent;
  color: var(--text);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; font-size: 18px;
}

.bottom-nav {
  position: fixed;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 100%; max-width: 480px;
  background: var(--navy-2);
  border-top: 0.5px solid var(--navy-3);
  display: flex;
  z-index: 100;
}
.nav-item {
  flex: 1;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 10px 0;
  color: var(--text-muted);
  font-size: 11px; gap: 4px;
  cursor: pointer;
  border: none; background: transparent;
  transition: color 0.2s;
}
.nav-item i { font-size: 22px; }
.nav-item.active { color: var(--cyan); }

.page { display: none; padding: 1.25rem; }
.page.active { display: block; }

.login-page {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  min-height: 100vh; padding: 2rem;
}
.login-logo { text-align: center; margin-bottom: 2.5rem; }
.login-logo .shield {
  width: 80px; height: 80px;
  background: var(--cyan);
  border-radius: 20px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 1rem;
}
.login-logo .shield i { font-size: 44px; color: var(--navy); }
.login-logo h1 { font-size: 28px; font-weight: 500; }
.login-logo p { color: var(--text-muted); font-size: 13px; letter-spacing: 2px; margin-top: 4px; }

.form-group { width: 100%; margin-bottom: 1rem; }
.form-group label { font-size: 12px; color: var(--text-muted); display: block; margin-bottom: 6px; letter-spacing: 0.5px; }
.form-group input {
  width: 100%; padding: 14px 16px;
  background: var(--navy-2);
  border: 1px solid var(--navy-3);
  border-radius: 12px;
  color: var(--text); font-size: 15px;
  outline: none;
}
.form-group input:focus { border-color: var(--cyan); }

.btn-primary {
  width: 100%; padding: 15px;
  background: var(--cyan);
  color: var(--navy);
  border: none; border-radius: 12px;
  font-size: 16px; font-weight: 500;
  cursor: pointer; margin-top: 0.5rem;
}
.btn-primary:active { opacity: 0.9; transform: scale(0.99); }

.card {
  background: var(--navy-2);
  border-radius: 16px;
  border: 0.5px solid var(--navy-3);
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.status-card {
  border-radius: 16px;
  padding: 1.25rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.status-card.armed { background: var(--green); }
.status-card.disarmed { background: var(--navy-3); }
.status-card .status-info { display: flex; align-items: center; gap: 12px; }
.status-card .status-info i { font-size: 36px; }
.status-card.armed i { color: var(--navy); }
.status-card.disarmed i { color: var(--text-muted); }
.status-card .status-label { font-size: 11px; opacity: 0.7; }
.status-card.armed .status-label { color: var(--navy); }
.status-card.disarmed .status-label { color: var(--text-muted); }
.status-card .status-text { font-size: 22px; font-weight: 500; }
.status-card.armed .status-text { color: var(--navy); }
.status-card.disarmed .status-text { color: var(--text); }
.btn-toggle {
  padding: 8px 18px;
  border-radius: 20px;
  border: none;
  font-size: 13px; font-weight: 500;
  cursor: pointer;
}
.armed .btn-toggle { background: rgba(10,22,40,0.25); color: var(--navy); }
.disarmed .btn-toggle { background: var(--cyan); color: var(--navy); }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px; margin-bottom: 1rem;
}
.stat-card {
  background: var(--navy-2);
  border-radius: 12px;
  border: 0.5px solid var(--navy-3);
  padding: 14px;
}
.stat-card i { font-size: 20px; margin-bottom: 6px; display: block; }
.stat-card .stat-label { font-size: 11px; color: var(--text-muted); margin-bottom: 2px; }
.stat-card .stat-value { font-size: 22px; font-weight: 500; }

.event-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 0;
  border-bottom: 0.5px solid var(--navy-3);
  cursor: pointer;
}
.event-item:last-child { border-bottom: none; }
.event-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--red); flex-shrink: 0; }
.event-info { flex: 1; }
.event-info .event-title { font-size: 13px; font-weight: 500; }
.event-info .event-sub { font-size: 11px; color: var(--text-muted); margin-top: 2px; }
.event-item i { color: var(--text-muted); font-size: 16px; }

.section-title { font-size: 12px; color: var(--text-muted); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 10px; }

.camera-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 0;
  border-bottom: 0.5px solid var(--navy-3);
}
.camera-item:last-child { border-bottom: none; }
.camera-thumb {
  width: 64px; height: 44px;
  background: var(--navy-3);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.camera-thumb i { font-size: 20px; color: var(--text-muted); }
.camera-info { flex: 1; }
.camera-info .camera-name { font-size: 14px; font-weight: 500; }
.camera-info .camera-status { font-size: 11px; margin-top: 2px; }
.camera-online { color: var(--green); }
.camera-offline { color: var(--red); }

.badge-alert {
  background: var(--red);
  color: white; font-size: 10px;
  padding: 2px 7px; border-radius: 10px;
  font-weight: 500;
}

.toast {
  position: fixed; top: 70px; left: 50%;
  transform: translateX(-50%);
  background: var(--navy-2);
  border: 1px solid var(--cyan);
  color: var(--cyan);
  padding: 10px 20px; border-radius: 20px;
  font-size: 13px; z-index: 999;
  opacity: 0; transition: opacity 0.3s;
  white-space: nowrap;
}
.toast.show { opacity: 1; }

.greeting { margin-bottom: 1.25rem; }
.greeting .greeting-sub { font-size: 12px; color: var(--cyan); letter-spacing: 1px; text-transform: uppercase; }
.greeting h2 { font-size: 20px; font-weight: 500; }