/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; background: #1a1a2e; color: #eee; }

.hidden { display: none !important; }

/* ── Login View ── */
#login-view {
  display: flex; align-items: center; justify-content: center;
  height: 100%; background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}
.login-card {
  background: rgba(255,255,255,0.05); backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.1); border-radius: 16px;
  padding: 48px 40px; width: 100%; max-width: 400px; text-align: center;
}
.login-card h1 { font-size: 2rem; font-weight: 700; margin-bottom: 4px; letter-spacing: -0.5px; }
.login-subtitle { color: #8892b0; font-size: 0.9rem; margin-bottom: 32px; }

#login-form { display: flex; flex-direction: column; gap: 14px; }
#login-form input {
  padding: 12px 16px; border-radius: 10px; border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.06); color: #eee; font-size: 1rem; outline: none;
  transition: border-color 0.2s;
}
#login-form input:focus { border-color: #e94560; }
#login-form input::placeholder { color: #5a6080; }

#login-btn {
  margin-top: 4px; padding: 13px; border-radius: 10px; border: none;
  background: #e94560; color: #fff; font-size: 1rem; font-weight: 600; cursor: pointer;
  transition: background 0.2s;
}
#login-btn:hover { background: #d63851; }
#login-btn:disabled { opacity: 0.6; cursor: not-allowed; }

.error-text { color: #ff6b6b; font-size: 0.85rem; margin-top: 8px; }
.success-text { color: #4caf50; font-size: 0.85rem; margin-top: 8px; }
.login-forgot { margin-top: 16px; font-size: 0.85rem; }
.login-forgot a { color: #8892b0; text-decoration: none; }
.login-forgot a:hover { color: #e94560; text-decoration: underline; }

#change-password-btn {
  padding: 6px 10px; border-radius: 8px; border: 1px solid rgba(255,255,255,0.2);
  background: transparent; color: #ffc107; font-size: 0.9rem; cursor: pointer;
  transition: background 0.2s;
}
#change-password-btn:hover { background: rgba(255,193,7,0.12); }

/* ── Map View ── */
#map-view { height: 100%; position: relative; }
#map { height: 100%; width: 100%; }

#top-bar {
  position: absolute; top: 12px; left: 50%; transform: translateX(-50%); z-index: 1000;
  display: flex; align-items: center; gap: 12px;
  background: rgba(26,26,46,0.92); backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.12); border-radius: 12px;
  padding: 10px 20px; font-size: 0.9rem; white-space: nowrap;
}
#device-summary { color: #a8b2d1; }
#logout-btn, #add-device-btn, #admin-btn {
  padding: 6px 14px; border-radius: 8px; border: 1px solid rgba(255,255,255,0.2);
  background: transparent; font-size: 0.85rem; cursor: pointer;
  transition: background 0.2s;
}
#logout-btn { color: #e94560; }
#logout-btn:hover { background: rgba(233,69,96,0.12); }
#add-device-btn { color: #4caf50; }
#add-device-btn:hover { background: rgba(76,175,80,0.12); }
#admin-btn { color: #ff9800; }
#admin-btn:hover { background: rgba(255,152,0,0.12); }

#connection-banner {
  position: absolute; top: 70px; left: 50%; transform: translateX(-50%); z-index: 1001;
  background: rgba(255,193,7,0.9); color: #1a1a2e; padding: 8px 20px;
  border-radius: 8px; font-size: 0.85rem; font-weight: 500;
}

/* ── Modals ── */
.modal {
  position: fixed; inset: 0; z-index: 2000;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,0.6); backdrop-filter: blur(4px);
}
.modal-card {
  background: #1e2040; border: 1px solid rgba(255,255,255,0.12); border-radius: 16px;
  padding: 32px; width: 100%; max-width: 420px; display: flex; flex-direction: column; gap: 14px;
}
.modal-card h2 { font-size: 1.3rem; font-weight: 600; }
.modal-subtitle { color: #8892b0; font-size: 0.85rem; margin-top: -8px; }

.modal-card input {
  padding: 10px 14px; border-radius: 8px; border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.06); color: #eee; font-size: 0.95rem; outline: none;
}
.modal-card input:focus { border-color: #e94560; }

.modal-buttons { display: flex; gap: 10px; justify-content: flex-end; margin-top: 6px; }
.btn-primary, .btn-secondary, .btn-danger {
  padding: 8px 18px; border-radius: 8px; border: none; font-size: 0.9rem; font-weight: 500; cursor: pointer;
}
.btn-primary { background: #e94560; color: #fff; }
.btn-primary:hover { background: #d63851; }
.btn-secondary { background: rgba(255,255,255,0.1); color: #a8b2d1; border: 1px solid rgba(255,255,255,0.15); }
.btn-secondary:hover { background: rgba(255,255,255,0.18); }
.btn-danger { background: transparent; color: #ff6b6b; border: 1px solid rgba(255,107,107,0.3); font-size: 0.78rem; padding: 4px 10px; }
.btn-danger:hover { background: rgba(255,107,107,0.12); }
.btn-sm { font-size: 0.8rem; padding: 6px 14px; }
.btn-primary:disabled, .btn-secondary:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── Admin Panel ── */
.admin-modal-card { max-width: 640px; max-height: 80vh; overflow-y: auto; }
.admin-tabs { display: flex; gap: 0; margin-bottom: 8px; }
.admin-tab {
  padding: 8px 18px; border: 1px solid rgba(255,255,255,0.12); background: transparent;
  color: #8892b0; cursor: pointer; font-size: 0.85rem; border-radius: 0;
}
.admin-tab:first-child { border-radius: 8px 0 0 8px; }
.admin-tab:last-child { border-radius: 0 8px 8px 0; }
.admin-tab.active { background: rgba(233,69,96,0.15); color: #e94560; border-color: rgba(233,69,96,0.3); }

.admin-toolbar { margin-bottom: 8px; }
.admin-table-wrap { overflow-x: auto; }
.admin-table-wrap table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.admin-table-wrap th { text-align: left; color: #8892b0; padding: 8px 10px; border-bottom: 1px solid rgba(255,255,255,0.08); font-weight: 500; }
.admin-table-wrap td { padding: 8px 10px; border-bottom: 1px solid rgba(255,255,255,0.05); }
.admin-badge {
  display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 0.72rem; font-weight: 600;
}
.admin-badge.active { background: #e94560; color: #fff; }
.admin-badge.inactive { background: #424242; color: #9e9e9e; }

/* ── Loading Overlay ── */
#loading-overlay {
  position: fixed; inset: 0; z-index: 9999;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px;
  background: rgba(26,26,46,0.85); color: #8892b0;
}
.spinner {
  width: 36px; height: 36px; border: 3px solid rgba(233,69,96,0.2);
  border-top-color: #e94560; border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Map Popup Overrides ── */
.leaflet-popup-content { font-size: 0.9rem; line-height: 1.5; min-width: 190px; }
.leaflet-popup-content strong { display: block; font-size: 1rem; margin-bottom: 2px; }
.popup-label { color: #8892b0; font-size: 0.75rem; }
.popup-status { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 0.75rem; font-weight: 600; }
.popup-status.online { background: #1b5e20; color: #81c784; }
.popup-status.offline { background: #424242; color: #9e9e9e; }
.popup-acc-on { color: #4caf50; }
.popup-acc-off { color: #f44336; }

/* ── Responsive ── */
@media (max-width: 480px) {
  .login-card { padding: 32px 24px; margin: 16px; }
  #top-bar { font-size: 0.78rem; padding: 8px 14px; gap: 10px; }
  .modal-card { margin: 16px; max-height: 90vh; overflow-y: auto; }
  .admin-modal-card { max-width: 100%; }
}