/* ==== Theme ==== */
:root {
  --clr-background: #101624;
  --clr-light: #161e2e;
  --clr-primary: #3b82f6;
  --clr-primary-hover: #2563eb;
  --clr-secondary: #ff8000;
  --clr-accent: #3b82f6;
  --clr-text: #EEE;
  --clr-header: #EEE;
  --clr-success: #10b981;
  --clr-warning: #f59e0b;
  --clr-danger: #ef4444;
  --transition: .3s ease;
  --select-arrow: var(--clr-primary-hover);
}

/* ==== Base ==== */
*,
*::before,
*::after { box-sizing: border-box; }

body {
  font-family: 'Inter', system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 1.125rem;
  background: var(--clr-background);
  color: var(--clr-text);
  line-height: 1.6;
  margin: 0;
  overflow-x: hidden;
}

.page { max-width: 750px; margin: 0 auto; padding: 0 1rem; }

h1 {
  text-align: center;
  color: var(--clr-header);
  margin: 1.5rem 0 2rem;
  opacity: 0.8;
}

/* ==== Header bar ==== */
.top-bar {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.top-bar h1 {
  margin: 1.5rem 0 1.25rem;
}

.logout-btn {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  background: var(--clr-primary-hover);
  color: #fff;
  border: none;
  padding: 0 8px;
  border-radius: 6px;
  height: 20px;
  font-size: .9rem;
  line-height: 20px;
  cursor: pointer;
}

.logout-btn:hover { filter: brightness(1.1); }

/* ==== Search container ==== */
.search-container {
  position: relative;
  margin: 0 0 1.5rem 0;
}

.search-container input {
  width: 100%;
  padding: 0.75rem 2.5rem 0.75rem 1rem;
  font-size: 1.05rem;
  border-radius: 6px;
  border: 1px solid #2e3540;
  background: #1d232b;
  color: var(--clr-text);
  transition: border-color var(--transition);
}

.search-container input:focus {
  outline: none;
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, .25);
}

.clear-search-btn {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--clr-text);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 4px 8px;
  opacity: 0.6;
  transition: opacity var(--transition);
}

.clear-search-btn:hover {
  opacity: 1;
}

/* ==== Add form ==== */
.add-row {
  display: flex;
  gap: .5rem;
  align-items: center;
  width: 100%;
  flex-wrap: wrap;
}

.add-row select,
.add-row input,
.add-row button {
  font-size: 1.05rem;
  height: 44px;
  line-height: 44px;
  border-radius: 6px;
  border: 1px solid #2e3540;
  background: #1d232b;
  color: var(--clr-text);
  padding: 0 12px;
}

.add-row select {
  appearance: none;
  -webkit-appearance: none;
  background-image: none;
  min-height: 44px;
  max-height: 44px;
}

.add-row input {
  flex: 1;
}

.add-row button[type="submit"] {
  background: var(--clr-primary-hover);
  border: none;
  cursor: pointer;
  padding: 0 16px;
  min-width: 80px;
  font-weight: 600;
}

.add-row button[type="submit"]:hover {
  filter: brightness(1.1);
}

/* Select wrapper with chevron */
.select-wrap {
  position: relative;
  display: inline-block;
  flex: 0 0 170px;
}

.select-wrap select {
  width: 100%;
  padding-right: 44px;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--select-arrow) 50%),
    linear-gradient(-45deg, transparent 50%, var(--select-arrow) 50%);
  background-position:
    right 16px center,
    right 10px center;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}

/* ==== Secondary button ==== */
.secondary-btn {
  background: var(--clr-light);
  border: 1px solid var(--clr-accent);
  color: var(--clr-text);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1rem;
  transition: var(--transition);
}

.secondary-btn:hover {
  background: #1f2937;
  border-color: var(--clr-primary-hover);
}

/* ==== Install button ==== */
.install-btn {
  background: var(--clr-primary-hover);
  color: #fff;
  border: none;
  padding: .75rem 1.25rem;
  font-size: 1rem;
  border-radius: 6px;
  cursor: pointer;
}

.install-btn:hover {
  filter: brightness(1.1);
}

/* ==== Last updated ==== */
#lastUpdated {
  text-align: center;
  font-size: .9rem;
  opacity: .7;
  color: var(--clr-primary);
}

/* ==== Location groups ==== */
.location-group {
  margin: 0 auto 2rem auto;
  background: var(--clr-light);
  border-radius: 8px;
  padding: 0.8rem 1rem 1rem;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.location-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--clr-accent);
}

.location-header h2 {
  margin: 0;
  color: var(--clr-header);
  font-size: 1.4rem;
}

.location-actions {
  display: flex;
  gap: 0.5rem;
}

.edit-location-btn,
.delete-location-btn {
  background: none;
  border: none;
  color: var(--clr-text);
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.9rem;
  opacity: 0.7;
  transition: var(--transition);
}

.edit-location-btn:hover {
  opacity: 1;
  background: rgba(59, 130, 246, 0.2);
}

.delete-location-btn:hover {
  opacity: 1;
  background: rgba(239, 68, 68, 0.2);
  color: var(--clr-danger);
}

/* ==== Item list ==== */
.item-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.item-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--clr-background);
  margin: 0.5rem 0;
  padding: 0.75rem;
  border-radius: 6px;
  transition: background var(--transition);
}

.item-row:hover {
  background: #1a2030;
}

.item-info {
  flex: 1;
  min-width: 0;
}

.item-name {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: var(--clr-text);
}

.item-details {
  font-size: 0.85rem;
  opacity: 0.7;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.item-expiration {
  color: var(--clr-text);
}

.item-expiration.expiring-soon {
  color: var(--clr-warning);
  font-weight: 600;
}

.item-expiration.expired {
  color: var(--clr-danger);
  font-weight: 600;
}

.item-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.quantity-control {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: #1d232b;
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  border: 1px solid #2e3540;
}

.qty-btn {
  background: var(--clr-primary-hover);
  color: #fff;
  border: none;
  width: 28px;
  height: 28px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1.1rem;
  font-weight: bold;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.qty-btn:hover {
  filter: brightness(1.2);
}

.qty-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.qty-display {
  min-width: 32px;
  text-align: center;
  font-weight: 600;
  font-size: 1.05rem;
}

.delete-item-btn {
  background: none;
  border: none;
  color: var(--clr-danger);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 4px;
  font-size: 1.2rem;
  opacity: 0.7;
  transition: var(--transition);
}

.delete-item-btn:hover {
  opacity: 1;
  background: rgba(239, 68, 68, 0.2);
}

/* ==== Empty state ==== */
.empty-location {
  text-align: center;
  padding: 2rem 1rem;
  opacity: 0.6;
  font-style: italic;
}

/* ==== Modal ==== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .65);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 400;
  padding: 1rem;
}

.modal {
  background: #1d232b;
  border: 1px solid #2e3540;
  border-radius: 12px;
  max-width: 420px;
  width: 100%;
  padding: 1.5rem;
  color: var(--clr-text);
  box-shadow: 0 8px 28px rgba(0, 0, 0, .4);
  animation: modalIn .25s ease;
}

.modal h3 {
  margin: 0 0 1rem;
  font-size: 1.3rem;
  color: var(--clr-text);
}

.modal-message {
  margin: 0 0 1rem;
  color: var(--clr-text);
  opacity: 0.85;
  line-height: 1.5;
}

.modal-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.modal-form input {
  padding: 0.75rem;
  font-size: 1rem;
  border-radius: 6px;
  border: 1px solid #2e3540;
  background: var(--clr-background);
  color: var(--clr-text);
}

.modal-form input:focus {
  outline: none;
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, .25);
}

.modal-input {
  padding: 0.75rem;
  font-size: 1rem;
  border-radius: 6px;
  border: 1px solid #2e3540;
  background: var(--clr-background);
  color: var(--clr-text);
  width: 100%;
  margin-bottom: 1rem;
}

.modal-input:focus {
  outline: none;
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 2px rgba(59, 130, 246, .25);
}

.modal-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.modal-actions button {
  flex: 1;
  padding: 0.65rem;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.modal-confirm {
  background: var(--clr-primary-hover);
  border: none;
  color: #fff;
}

.modal-confirm:hover {
  filter: brightness(1.1);
}

.modal-cancel {
  background: var(--clr-light);
  border: 1px solid #2e3540;
  color: var(--clr-text);
}

.modal-cancel:hover {
  background: #1f2937;
}

.modal-delete {
  background: var(--clr-danger);
  border: none;
  color: #fff;
}

.modal-delete:hover {
  filter: brightness(1.1);
}

@keyframes modalIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ==== Responsive ==== */
@media (max-width: 768px) {
  .page { max-width: 95vw; }

  .add-row {
    flex-direction: column;
    align-items: stretch;
  }

  .add-row > * {
    width: 100%;
  }

  .select-wrap {
    flex: 0 0 100%;
  }

  .add-row select,
  .add-row input,
  .add-row button {
    font-size: 1.05rem;
    height: 46px !important;
    min-height: 46px !important;
    line-height: 46px !important;
  }

  .item-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .item-controls {
    width: 100%;
    justify-content: space-between;
  }

  .location-header {
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-start;
  }
}

@media (max-width: 600px) {
  body { font-size: 1rem; }
  h1 { font-size: 1.9rem; margin: 1rem 0 1.25rem; }

  .location-group {
    margin: 0 0 1.25rem;
    padding: .6rem .75rem .75rem;
    border-radius: 6px;
    box-shadow: 0 2px 6px rgba(0,0,0,.25);
  }

  .location-header h2 {
    font-size: 1.15rem;
  }

  .item-row {
    padding: .6rem;
    margin: .35rem 0;
  }

  .item-name {
    font-size: 1rem;
  }

  .item-details {
    font-size: 0.8rem;
  }

  .qty-btn {
    width: 32px;
    height: 32px;
  }

  .modal {
    max-width: 360px;
    padding: 1.25rem;
  }

  .modal h3 {
    font-size: 1.1rem;
  }
}