/* ===== HILTON NIAGARA FALLS — ELECTRICAL PANEL MANAGEMENT SYSTEM ===== */
/* Dark Industrial Theme */

:root {
  --charcoal: #1a1a2e;
  --charcoal-light: #16213e;
  --charcoal-mid: #0f3460;
  --yellow: #f5c518;
  --yellow-dim: #c9a114;
  --blue: #4a90d9;
  --blue-dark: #2c6fad;
  --red: #e74c3c;
  --green: #27ae60;
  --orange: #f39c12;
  --text: #e0e0e0;
  --text-dim: #9aa0a6;
  --border: #2a2a4a;
  --card-bg: #1e1e38;
  --input-bg: #12122a;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--charcoal);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}

/* ===== HEADER ===== */
.app-header {
  background: linear-gradient(135deg, var(--charcoal-light), var(--charcoal-mid));
  border-bottom: 2px solid var(--yellow);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 20px rgba(245,197,24,0.15);
}

.app-header h1 {
  font-size: 1rem;
  color: var(--yellow);
  font-weight: 700;
  letter-spacing: 0.5px;
}

.app-header .header-sub {
  font-size: 0.7rem;
  color: var(--text-dim);
  display: block;
  margin-top: 1px;
}

.header-logo {
  width: 36px;
  height: 36px;
  background: var(--yellow);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1rem;
  color: var(--charcoal);
  flex-shrink: 0;
}

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

.btn-icon {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.2s;
  text-decoration: none;
}
.btn-icon:hover { border-color: var(--yellow); color: var(--yellow); }

/* ===== MAIN CONTENT ===== */
.main-content { padding: 16px; max-width: 900px; margin: 0 auto; }

/* ===== STATS BAR ===== */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 20px;
}

.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 10px;
  text-align: center;
}

.stat-card .stat-value {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--yellow);
  display: block;
}

.stat-card .stat-label {
  font-size: 0.65rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 2px;
}

/* ===== SECTION TITLE ===== */
.section-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-dim);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ===== TOWER CARDS ===== */
.tower-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.tower-card {
  background: linear-gradient(145deg, var(--card-bg), var(--charcoal-light));
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 12px;
  text-align: center;
  cursor: pointer;
  transition: all 0.25s;
  text-decoration: none;
  display: block;
  position: relative;
  overflow: hidden;
}

.tower-card::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: var(--blue);
  transform: scaleX(0);
  transition: transform 0.25s;
}

.tower-card:hover {
  border-color: var(--blue);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(74,144,217,0.2);
}
.tower-card:hover::before { transform: scaleX(1); }

.tower-icon { font-size: 2.2rem; margin-bottom: 8px; }
.tower-name { font-size: 0.85rem; font-weight: 700; color: var(--text); }
.tower-floors { font-size: 0.7rem; color: var(--text-dim); margin-top: 4px; }
.tower-count {
  font-size: 0.7rem;
  color: var(--yellow);
  margin-top: 6px;
  font-weight: 600;
}

/* ===== QUICK ACTIONS ===== */
.quick-actions {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 24px;
}

.action-btn {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 12px;
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  color: var(--text);
}
.action-btn:hover {
  border-color: var(--yellow);
  background: var(--charcoal-light);
}
.action-btn .action-icon { font-size: 1.4rem; }
.action-btn .action-label { font-size: 0.85rem; font-weight: 600; }
.action-btn .action-sub { font-size: 0.65rem; color: var(--text-dim); margin-top: 1px; }

/* ===== ACTIVITY FEED ===== */
.activity-feed { margin-bottom: 24px; }

.activity-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-left: 3px solid var(--blue);
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.activity-item .activity-info { flex: 1; }
.activity-item .activity-id { font-size: 0.8rem; font-weight: 700; color: var(--yellow); }
.activity-item .activity-desc { font-size: 0.75rem; color: var(--text-dim); margin-top: 2px; }
.activity-item .activity-time { font-size: 0.65rem; color: var(--text-dim); }

/* ===== PANEL CARDS ===== */
.panel-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  margin-bottom: 10px;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  display: block;
  color: var(--text);
}
.panel-card:hover {
  border-color: var(--blue);
  transform: translateX(4px);
}

.panel-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.panel-id { font-size: 0.9rem; font-weight: 800; color: var(--yellow); font-family: monospace; }
.panel-name { font-size: 0.8rem; color: var(--text); margin-top: 2px; }
.panel-location { font-size: 0.7rem; color: var(--text-dim); margin-top: 4px; }

.status-badge {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.status-active { background: rgba(39,174,96,0.2); color: var(--green); border: 1px solid var(--green); }
.status-flagged { background: rgba(231,76,60,0.2); color: var(--red); border: 1px solid var(--red); }
.status-unknown { background: rgba(243,156,18,0.2); color: var(--orange); border: 1px solid var(--orange); }
.status-inactive { background: rgba(154,160,166,0.2); color: var(--text-dim); border: 1px solid var(--text-dim); }

.panel-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.voltage-tag {
  font-size: 0.65rem;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(74,144,217,0.2);
  color: var(--blue);
  border: 1px solid rgba(74,144,217,0.3);
  font-family: monospace;
  font-weight: 600;
}

/* ===== FLOOR SELECTOR ===== */
.floor-selector {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.floor-btn {
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text-dim);
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.15s;
  font-weight: 600;
}
.floor-btn:hover { border-color: var(--blue); color: var(--blue); }
.floor-btn.active { background: var(--blue); color: white; border-color: var(--blue); }

/* ===== FORMS ===== */
.form-group { margin-bottom: 16px; }
.form-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}
.form-control {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 12px 14px;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s;
}
.form-control:focus { border-color: var(--blue); }
.form-control option { background: var(--charcoal); }

textarea.form-control { min-height: 80px; resize: vertical; }

/* ===== BUTTONS ===== */
.btn {
  padding: 14px 24px;
  border-radius: 8px;
  border: none;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  display: inline-block;
  text-align: center;
}
.btn-primary {
  background: var(--blue);
  color: white;
}
.btn-primary:hover { background: var(--blue-dark); transform: translateY(-1px); }

.btn-yellow {
  background: var(--yellow);
  color: var(--charcoal);
}
.btn-yellow:hover { background: var(--yellow-dim); }

.btn-danger {
  background: var(--red);
  color: white;
}
.btn-danger:hover { opacity: 0.85; }

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-outline:hover { border-color: var(--yellow); color: var(--yellow); }

.btn-sm { padding: 8px 14px; font-size: 0.8rem; }
.btn-full { width: 100%; }

/* ===== TABLES ===== */
.data-table { width: 100%; border-collapse: collapse; font-size: 0.8rem; }
.data-table th {
  background: var(--charcoal-light);
  color: var(--text-dim);
  padding: 10px 12px;
  text-align: left;
  text-transform: uppercase;
  font-size: 0.65rem;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
}
.data-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
.data-table tr:hover td { background: rgba(74,144,217,0.05); }
.data-table .mono { font-family: monospace; font-size: 0.85rem; }

/* ===== SEARCH ===== */
.search-bar {
  position: relative;
  margin-bottom: 16px;
}
.search-bar input {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  padding: 14px 14px 14px 44px;
  font-size: 0.95rem;
  outline: none;
}
.search-bar input:focus { border-color: var(--blue); }
.search-bar .search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.1rem;
  color: var(--text-dim);
}

/* ===== FILTERS ===== */
.filter-row {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.filter-select {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  padding: 8px 12px;
  font-size: 0.8rem;
  outline: none;
  flex: 1;
  min-width: 120px;
}
.filter-select option { background: var(--charcoal); }

/* ===== DETAIL PAGE ===== */
.detail-header {
  background: linear-gradient(135deg, var(--charcoal-light), var(--charcoal-mid));
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
  border-top: 3px solid var(--yellow);
}

.detail-id { font-size: 1.8rem; font-weight: 900; color: var(--yellow); font-family: monospace; }
.detail-name { font-size: 1rem; color: var(--text); margin-top: 4px; }
.detail-location { font-size: 0.8rem; color: var(--text-dim); margin-top: 4px; }

.info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

.info-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
}

.info-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-dim);
  margin-bottom: 4px;
}
.info-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
}
.info-value.voltage { color: var(--yellow); font-family: monospace; font-size: 1.1rem; }
.info-value.link-value { color: var(--blue); cursor: pointer; }
.info-value.link-value:hover { text-decoration: underline; }

/* ===== QR CODE ===== */
.qr-section {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  margin-bottom: 20px;
}
.qr-section img {
  border: 3px solid var(--yellow);
  border-radius: 8px;
  margin: 12px 0;
}

/* ===== BREAKER TABLE WRAPPER ===== */
.table-wrapper {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 20px;
}
.table-title {
  background: var(--charcoal-light);
  padding: 12px 16px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--yellow);
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ===== ACTION ROW ===== */
.action-row {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

/* ===== BOTTOM NAV ===== */
.bottom-nav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--charcoal-light);
  border-top: 1px solid var(--border);
  display: flex;
  padding: 8px 0;
  padding-bottom: calc(8px + env(safe-area-inset-bottom));
  z-index: 100;
}
.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  text-decoration: none;
  color: var(--text-dim);
  padding: 6px 4px;
  font-size: 0.6rem;
  transition: color 0.2s;
}
.nav-item.active { color: var(--yellow); }
.nav-item:hover { color: var(--text); }
.nav-item .nav-icon { font-size: 1.2rem; }

body.has-bottom-nav .main-content { padding-bottom: 90px; }

/* ===== ALERTS ===== */
.alert {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 0.85rem;
}
.alert-success { background: rgba(39,174,96,0.15); border: 1px solid var(--green); color: var(--green); }
.alert-danger { background: rgba(231,76,60,0.15); border: 1px solid var(--red); color: var(--red); }
.alert-info { background: rgba(74,144,217,0.15); border: 1px solid var(--blue); color: var(--blue); }
.alert-warning { background: rgba(243,156,18,0.15); border: 1px solid var(--orange); color: var(--orange); }

/* ===== EMPTY STATE ===== */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-dim);
}
.empty-icon { font-size: 3rem; margin-bottom: 12px; }
.empty-state h3 { font-size: 1rem; color: var(--text); margin-bottom: 8px; }
.empty-state p { font-size: 0.85rem; }

/* ===== LOADING ===== */
.loading-spinner {
  width: 32px; height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--yellow);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 24px auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== RESPONSIVE ===== */
@media (max-width: 480px) {
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .tower-grid { grid-template-columns: 1fr; }
  .info-grid { grid-template-columns: 1fr; }
  .quick-actions { grid-template-columns: 1fr; }
  .detail-id { font-size: 1.4rem; }
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--charcoal); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--blue); }

/* ===== TOAST ===== */
.toast-container {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  pointer-events: none;
}
.toast {
  background: var(--charcoal-mid);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 20px;
  font-size: 0.85rem;
  margin-top: 8px;
  animation: toastIn 0.3s ease;
  pointer-events: all;
}
.toast.success { border-color: var(--green); }
.toast.error { border-color: var(--red); }
@keyframes toastIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}