:root {
  --green-dark: #0f5132;
  --green-mid: #146c43;
  --green-bright: #198754;
  --green-faint: #edf7f1;
  --amber: #f59e0b;
  --bg: #f5f8f6;
  --surface: #ffffff;
  --surface2: #f3f7f4;
  --border: #b9d8c8;
  --border-strong: #8fbfa8;
  --text: #14231b;
  --text-dim: #345646;
  --text-mid: #1f4f39;
  --red: #e74c3c;
  --red-dark: #c0392b;
  --red-faint: #fff5f5;
}

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

body {
  background: var(--bg);
  font-family: "Inter", Arial, sans-serif;
  color: var(--text);
  min-height: 100vh;
  padding: 24px;
}

.wrapper { max-width: 1240px; margin: 0 auto; }

.header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 24px;
  background: var(--surface);
  border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow: 0 8px 28px rgba(15, 118, 78, 0.08);
  margin-bottom: 12px;
}

.logo-container {
  width: 180px;
  display: flex;
  align-items: center;
}

.site-logo {
  max-width: 80px;
  height: auto;
}

.logo-text { flex: 1; text-align: center; }
.logo-title { font-size: 20px; font-weight: 800; letter-spacing: 1px; text-transform: uppercase; color: var(--green-dark); }
.logo-desc { font-size: 20px; font-weight: 800; letter-spacing: 1px; text-transform: uppercase; color: var(--green-dark); margin-top: 4px; }

.mode-block {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 16px;
  min-width: 180px;
}

.mode-title { font-size: 13px; letter-spacing: 1px; text-transform: uppercase; color: var(--text-dim); text-align: center; }
.mode-toggle { display: flex; border: 1px solid var(--border-strong); border-radius: 8px; overflow: hidden; }
.mode-btn { flex: 1; border: none; background: var(--surface); padding: 6px 8px; cursor: pointer; }
.mode-btn.active { background: var(--green-bright); color: #fff; }
.mode-on-row { display: flex; align-items: center; gap: 8px; }
.mode-led {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #d1fae5;
  border: 1.5px solid var(--border-strong);
}
.mode-led.on {
  background: var(--green-bright);
  border-color: var(--green-dark);
  box-shadow: 0 0 6px rgba(34, 192, 105, 0.6);
}
.btn-on {
  flex: 1;
  border: 1.5px solid var(--green-bright);
  background: transparent;
  color: var(--green-dark);
  border-radius: 6px;
  padding: 6px 0;
  cursor: pointer;
}
.btn-on.on { background: var(--green-bright); color: #fff; border-color: var(--green-dark); }

.nav-tabs {
  display: flex;
  margin-bottom: 12px;
  background: var(--surface);
  border-radius: 12px;
  border: 1px solid var(--border);
  overflow: hidden;
}

.nav-tab {
  flex: 1;
  padding: 10px;
  text-align: center;
  text-decoration: none;
  color: #2f4f40;
  text-transform: uppercase;
  border-right: 1px solid var(--border);
}

.nav-tab:last-child { border-right: none; }
.nav-tab.active { background: #e3f3ea; color: #0f5132; font-weight: 700; border-bottom: 3px solid var(--green-bright); }

.section-label {
  font-size: 16px;
  text-transform: uppercase;
  color: var(--text-mid);
  padding-left: 10px;
  border-left: 3px solid var(--green-bright);
  margin: 12px 0 8px;
  font-weight: 600;
}

/* ===== DELETE TOOLBAR ===== */
.delete-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 16px;
  margin-bottom: 8px;
  gap: 12px;
  flex-wrap: wrap;
}

.toolbar-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

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

.selected-count {
  font-size: 13px;
  color: var(--text-dim);
  font-weight: 500;
}

/* Custom checkbox */
.checkbox-label,
.row-checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}

.checkbox-label input[type="checkbox"],
.row-checkbox-label input[type="checkbox"] {
  display: none;
}

.custom-checkbox {
  width: 17px;
  height: 17px;
  border: 2px solid var(--border-strong);
  border-radius: 4px;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, border-color 0.15s;
  flex-shrink: 0;
}

.checkbox-label input:checked + .custom-checkbox,
.row-checkbox-label input:checked + .custom-checkbox {
  background: var(--green-bright);
  border-color: var(--green-dark);
}

.checkbox-label input:checked + .custom-checkbox::after,
.row-checkbox-label input:checked + .custom-checkbox::after {
  content: '';
  display: block;
  width: 5px;
  height: 9px;
  border: 2px solid #fff;
  border-top: none;
  border-left: none;
  transform: rotate(45deg) translate(-1px, -1px);
}

.checkbox-label input:indeterminate + .custom-checkbox {
  background: var(--green-bright);
  border-color: var(--green-dark);
}

.checkbox-label input:indeterminate + .custom-checkbox::after {
  content: '';
  display: block;
  width: 8px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
}

.label-text {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-mid);
}

/* Delete buttons */
.btn-delete-selected,
.btn-delete-all {
  display: flex;
  align-items: center;
  gap: 6px;
  border: none;
  border-radius: 8px;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.18s, opacity 0.18s, transform 0.12s;
  font-family: "Inter", Arial, sans-serif;
}

.btn-delete-selected {
  background: var(--red-faint);
  color: var(--red);
  border: 1.5px solid #f5c6c2;
}

.btn-delete-selected:hover:not(:disabled) {
  background: var(--red);
  color: #fff;
  border-color: var(--red-dark);
  transform: translateY(-1px);
}

.btn-delete-selected:disabled {
  opacity: 0.42;
  cursor: not-allowed;
}

.btn-delete-all {
  background: var(--red);
  color: #fff;
  border: 1.5px solid var(--red-dark);
}

.btn-delete-all:hover {
  background: var(--red-dark);
  transform: translateY(-1px);
}

/* ===== TABLE ===== */
.hist-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.table-wrap {
  overflow-x: auto;
  border-radius: 12px;
}

.hist-table th {
  background: var(--green-faint);
  color: var(--green-dark);
  padding: 9px 12px;
  text-align: center;
  text-transform: uppercase;
  border-bottom: 2px solid var(--border-strong);
  font-size: 12px;
}

.hist-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  text-align: center;
  white-space: nowrap;
  font-size: 13px;
}

.hist-table tr:last-child td { border-bottom: none; }

.hist-table tr:hover td {
  background: #f0faf5;
}

.col-check {
  width: 38px;
  padding: 0 8px !important;
}

.col-action {
  width: 60px;
}

/* Per-row delete button */
.btn-row-delete {
  background: transparent;
  border: 1.5px solid #f5c6c2;
  color: var(--red);
  border-radius: 6px;
  padding: 4px 7px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  transition: background 0.15s, color 0.15s, transform 0.12s;
}

.btn-row-delete:hover {
  background: var(--red);
  color: #fff;
  border-color: var(--red-dark);
  transform: scale(1.1);
}

/* ===== BOTTOM ROW ===== */
.bottom-row {
  display: flex;
  align-items: center;
  margin-top: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 16px;
}

.timestamp { font-size: 14px; color: var(--text-dim); text-transform: uppercase; }
.timestamp span { color: #0f5132; font-weight: 700; }

/* ===== MODAL ===== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10, 30, 20, 0.48);
  backdrop-filter: blur(3px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal-overlay.visible {
  display: flex;
  animation: fadeInOverlay 0.2s ease;
}

@keyframes fadeInOverlay {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-box {
  background: #fff;
  border-radius: 18px;
  padding: 32px 28px 24px;
  max-width: 400px;
  width: 90%;
  text-align: center;
  box-shadow: 0 20px 60px rgba(10, 30, 20, 0.22);
  animation: slideUpModal 0.22s ease;
}

@keyframes slideUpModal {
  from { transform: translateY(24px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-icon { margin-bottom: 12px; }

.modal-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.modal-msg {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.55;
  margin-bottom: 24px;
}

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
}

.modal-btn-cancel,
.modal-btn-confirm {
  flex: 1;
  padding: 10px 0;
  border-radius: 9px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  font-family: "Inter", Arial, sans-serif;
  transition: background 0.15s, transform 0.12s;
}

.modal-btn-cancel {
  background: #f0f4f2;
  color: var(--text-dim);
  border: 1.5px solid var(--border-strong);
}

.modal-btn-cancel:hover {
  background: #e2ece8;
}

.modal-btn-confirm {
  background: var(--red);
  color: #fff;
}

.modal-btn-confirm:hover {
  background: var(--red-dark);
  transform: translateY(-1px);
}

/* ===== TOAST ===== */
.toast {
  position: fixed;
  bottom: 28px;
  right: 28px;
  background: #1e3a2b;
  color: #fff;
  padding: 12px 20px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  z-index: 2000;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  max-width: 320px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.18);
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.toast.error {
  background: var(--red-dark);
}

.toast.success {
  background: var(--green-mid);
}