:root {
  --body-bg: #f0f2f5;
  --text-color: #495057;
  --container-bg: #ffffff;
  --container-shadow: rgba(0, 0, 0, 0.06);
  --header-bg-start: #007991;
  --header-bg-end: #78ffd6;
  --header-text: #ffffff;
  --content-border: #dee2e6;
  --menu-item-border: #e9ecef;
  --menu-item-hover-bg: #f7fafb;
  --menu-item-name-text: #343a40;
  --menu-item-price-text: #007991;
  --menu-item-price-border: rgba(0, 121, 145, 0.35);
  --menu-item-price-bg: rgba(0, 121, 145, 0.06);
  --menu-item-desc-text: #6b7280;
  --menu-item-soup-bg: #f5fbfc;
  --menu-item-soup-accent: #78ffd6;
  --menu-item-type-label-text: #007991;
  --menu-section-label-text: #9ca3af;
  --heading-color: #007991;
  --link-color: #007991;
  --link-hover-bg: #007991;
  --link-hover-text: #ffffff;
  --error-text: #d8000c;
  --error-bg: #ffd2d2;
  --loading-text: #888;
  --switch-bg: #ccc;
  --switch-bg-active: #007991;
  --switch-slider: #fff;
  --btn-bg: #e9ecef;
  --btn-text: #495057;
  --btn-hover-bg: #dee2e6;
  --btn-active-bg: #007991;
  --btn-active-text: #ffffff;
  --card-border: #e2e6ea;
  --badge-walk-bg: #d4edda;
  --badge-walk-text: #155724;
  --badge-car-bg: #fff3cd;
  --badge-car-text: #856404;
  --area-text: #9ca3af;
}

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

body {
  font-family: "Segoe UI", Roboto, Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-color);
  background-color: var(--body-bg);
  transition: background-color 0.3s, color 0.3s;
}

body.dark-theme {
  --body-bg: #1a1d24;
  --text-color: #c5c8d2;
  --container-bg: #2c2f3a;
  --container-shadow: rgba(0, 0, 0, 0.2);
  --header-bg-start: #005f73;
  --header-bg-end: #1d9a8a;
  --content-border: #3a3f51;
  --menu-item-border: #3a3f51;
  --menu-item-hover-bg: #353945;
  --menu-item-name-text: #e1e3e9;
  --menu-item-price-text: #78ffd6;
  --menu-item-price-border: rgba(120, 255, 214, 0.3);
  --menu-item-price-bg: rgba(120, 255, 214, 0.07);
  --menu-item-desc-text: #8891a5;
  --menu-item-soup-bg: #2a2e3d;
  --menu-item-soup-accent: #1d9a8a;
  --menu-item-type-label-text: #1d9a8a;
  --menu-section-label-text: #52586f;
  --heading-color: #78ffd6;
  --link-color: #78ffd6;
  --link-hover-bg: #78ffd6;
  --link-hover-text: #1a1d24;
  --error-text: #ff9e96;
  --error-bg: #5c2b29;
  --loading-text: #8891a5;
  --switch-bg: #52586f;
  --switch-bg-active: #1d9a8a;
  --switch-slider: #f1f1f1;
  --btn-bg: #353945;
  --btn-text: #c5c8d2;
  --btn-hover-bg: #3a3f51;
  --btn-active-bg: #1d9a8a;
  --btn-active-text: #ffffff;
  --card-border: #3a3f51;
  --badge-walk-bg: #1e3a2f;
  --badge-walk-text: #78ffd6;
  --badge-car-bg: #3a3520;
  --badge-car-text: #ffd666;
  --area-text: #52586f;
  background-color: var(--body-bg);
}

/* Layout */
.container {
  max-width: 1100px;
  margin: 20px auto;
  padding: 0;
}

/* Header */
header {
  background-image: linear-gradient(to right, var(--header-bg-start), var(--header-bg-end));
  padding: 18px 25px;
  color: var(--header-text);
  border-radius: 8px 8px 0 0;
}
header h1 {
  text-align: center;
  font-weight: 700;
  font-size: 1.5em;
}
.header-date {
  text-align: center;
  font-size: 0.85em;
  opacity: 0.9;
  margin-top: 2px;
}

/* Toolbar */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background-color: var(--container-bg);
  border-bottom: 1px solid var(--content-border);
  gap: 10px;
  flex-wrap: wrap;
}
.filters {
  display: flex;
  gap: 6px;
}
.filter-btn {
  padding: 6px 14px;
  border: 1px solid var(--content-border);
  border-radius: 16px;
  background: var(--btn-bg);
  color: var(--btn-text);
  font-size: 0.82em;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}
.filter-btn:hover { background: var(--btn-hover-bg); }
.filter-btn.active {
  background: var(--btn-active-bg);
  color: var(--btn-active-text);
  border-color: var(--btn-active-bg);
}
.toolbar-right {
  display: flex;
  align-items: center;
}

/* Theme Switch */
.theme-switch-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
}
.theme-label {
  font-size: 0.82em;
  color: var(--text-color);
  cursor: pointer;
}
.theme-switch {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 22px;
}
.theme-switch input { opacity: 0; width: 0; height: 0; }
.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: var(--switch-bg);
  transition: 0.3s;
}
.slider:before {
  position: absolute;
  content: "";
  height: 16px; width: 16px;
  left: 3px; bottom: 3px;
  background-color: var(--switch-slider);
  transition: 0.3s;
}
input:checked + .slider { background-color: var(--switch-bg-active); }
input:checked + .slider:before { transform: translateX(18px); }
.slider.round { border-radius: 22px; }
.slider.round:before { border-radius: 50%; }

/* Cards Grid */
.cards-container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  background-color: var(--container-bg);
  border-radius: 0 0 8px 8px;
  overflow: hidden;
}

.restaurant-card {
  padding: 18px;
  border: 1px solid var(--card-border);
  margin: -0.5px;
  transition: background-color 0.3s;
  background: var(--container-bg);
}

/* Card Header */
.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 2px;
}
.card-header h2 {
  font-size: 1.1em;
  font-weight: 700;
  color: var(--heading-color);
  margin: 0;
  line-height: 1.3;
}
.card-area {
  font-size: 0.72em;
  color: var(--area-text);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  margin-bottom: 12px;
}

/* Distance Badge */
.distance-badge {
  flex-shrink: 0;
  font-size: 0.72em;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 10px;
  white-space: nowrap;
}
.distance-badge.walk {
  background: var(--badge-walk-bg);
  color: var(--badge-walk-text);
}
.distance-badge.car {
  background: var(--badge-car-bg);
  color: var(--badge-car-text);
}

/* Menu Items */
.menu-list {
  list-style: none;
  padding-left: 0;
}
.menu-list-section-label {
  font-size: 0.68em;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--menu-section-label-text);
  padding: 10px 4px 4px;
  border-bottom: 1px solid var(--menu-item-border);
}
.menu-item {
  border-bottom: 1px solid var(--menu-item-border);
  padding: 8px 6px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  transition: background-color 0.15s;
}
.menu-item:last-child { border-bottom: none; }
.menu-item:hover { background-color: var(--menu-item-hover-bg); }

.menu-item--soup {
  padding: 6px 6px 6px 10px;
  border-left: 3px solid var(--menu-item-soup-accent);
  background-color: var(--menu-item-soup-bg);
  border-radius: 0 3px 3px 0;
  margin-bottom: 2px;
}
.menu-item--soup:hover { background-color: var(--menu-item-soup-bg); }
.menu-item--main { padding: 9px 6px; }

.menu-item-info { flex: 1; min-width: 0; }
.menu-item-type-label {
  display: block;
  font-size: 0.65em;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--menu-item-type-label-text);
  margin-bottom: 1px;
}
.menu-item--soup .menu-item-name {
  font-size: 0.85em;
  font-weight: 400;
  color: var(--menu-item-desc-text);
}
.menu-item--main .menu-item-name {
  font-size: 0.92em;
  font-weight: 600;
  color: var(--menu-item-name-text);
  line-height: 1.3;
}
.menu-item-name {
  font-size: 0.9em;
  font-weight: 500;
  color: var(--menu-item-name-text);
}
.menu-item-desc {
  display: block;
  margin-top: 3px;
  color: var(--menu-item-desc-text);
  font-size: 0.75em;
  font-style: italic;
}
.price {
  flex-shrink: 0;
  align-self: flex-start;
  font-weight: 600;
  white-space: nowrap;
  color: var(--menu-item-price-text);
  font-size: 0.78em;
  padding: 2px 6px;
  border: 1px solid var(--menu-item-price-border);
  background-color: var(--menu-item-price-bg);
  border-radius: 8px;
  margin-top: 1px;
}
.menu-item--soup .price {
  font-size: 0.72em;
  padding: 1px 5px;
}
.empty-menu {
  color: var(--menu-item-desc-text);
  font-style: italic;
  padding: 10px 0;
  font-size: 0.9em;
}

/* Loading & Error */
.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 25px 15px;
  color: var(--loading-text);
  text-align: center;
  font-size: 0.85em;
}
.loader-spinner {
  border: 3px solid var(--menu-item-border);
  border-top: 3px solid var(--heading-color);
  border-radius: 50%;
  width: 28px;
  height: 28px;
  animation: spin 1s linear infinite;
  margin-bottom: 8px;
}
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}
.error-message {
  color: var(--error-text);
  background-color: var(--error-bg);
  border: 1px solid var(--error-text);
  padding: 12px;
  border-radius: 5px;
  font-size: 0.85em;
  line-height: 1.5;
}
.retry-btn {
  display: inline-block;
  margin-top: 8px;
  padding: 4px 12px;
  border: 1px solid var(--error-text);
  border-radius: 4px;
  background: transparent;
  color: var(--error-text);
  cursor: pointer;
  font-size: 0.82em;
}
.retry-btn:hover { background: var(--error-text); color: #fff; }
.source-link {
  display: inline-block;
  margin-top: 10px;
  font-size: 0.78em;
  color: var(--link-color);
  text-decoration: none;
  border: 1px solid var(--link-color);
  padding: 3px 10px;
  border-radius: 4px;
  transition: background-color 0.2s, color 0.2s;
}
.source-link:hover {
  background-color: var(--link-hover-bg);
  color: var(--link-hover-text);
}

/* Footer */
footer {
  text-align: center;
  padding: 15px;
  font-size: 0.8em;
  color: var(--area-text);
}
footer a { color: var(--link-color); text-decoration: none; }
footer a:hover { text-decoration: underline; }
.app-info { font-size: 0.75em; margin-top: 4px; }
.app-info a { color: var(--link-color); text-decoration: none; }

/* Mobile */
@media (max-width: 700px) {
  .container { margin: 0; border-radius: 0; }
  header { border-radius: 0; }
  header h1 { font-size: 1.2em; }
  .cards-container {
    grid-template-columns: 1fr;
    border-radius: 0;
  }
  .toolbar { padding: 8px 12px; }
  .restaurant-card { padding: 14px; }
  .card-header h2 { font-size: 1em; }
}