/* ===== Reset & Base ===== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-primary: #2c1810;
  --color-primary-light: #4a2c1a;
  --color-accent: #c8956c;
  --color-accent-light: #e8c9a8;
  --color-bg: #faf6f1;
  --color-card: #ffffff;
  --color-text: #333333;
  --color-text-light: #777777;
  --color-border: #e0d6cc;
  --color-tag: #f5ebe0;
  --color-tag-text: #6b4226;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.25s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP",
    "Yu Gothic", "Meiryo", sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ===== Header ===== */
.site-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #fff;
  padding: 2rem 1.5rem;
  text-align: center;
  z-index: 100;
  box-shadow: var(--shadow-md);
}

.site-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.site-header h1 .icon {
  margin-right: 0.4rem;
}

.site-header p {
  font-size: 0.9rem;
  opacity: 0.85;
  font-weight: 300;
}

/* ===== Disclaimer Banner ===== */
.disclaimer-banner {
  background: #fff8e1;
  border-bottom: 2px solid #ffe082;
  padding: 0.75rem 1.5rem;
  text-align: center;
  font-size: 0.82rem;
  line-height: 1.65;
  color: #4a3728;
}

.disclaimer-banner strong {
  color: #e65100;
}

/* ===== Layout ===== */
.main-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 1.5rem;
  align-items: start;
}

/* ===== Filter Sidebar ===== */
.filter-sidebar {
  background: var(--color-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 1rem;
  border: 1px solid var(--color-border);
  max-height: calc(100vh - 2rem);
  overflow-y: auto;
}

.filter-sidebar h2 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.filter-group {
  margin-bottom: 1.25rem;
  position: relative;
}

.filter-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.4rem;
}

.filter-group select,
.filter-group input {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  background: #fff;
  color: var(--color-text);
  transition: border-color var(--transition);
  font-family: inherit;
}

.filter-group select.is-expanded {
  position: absolute;
  z-index: 50;
  width: 100%;
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}


.filter-group select:focus,
.filter-group input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(200, 149, 108, 0.2);
}

.filter-checkbox-group {
  padding-top: 0.25rem;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.filter-reset-btn {
  width: 100%;
  padding: 0.65rem;
  background: var(--color-tag);
  color: var(--color-tag-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition);
  font-family: inherit;
}

.filter-reset-btn:hover {
  background: var(--color-accent-light);
}

/* ===== Results Area ===== */
.results-area {
  min-height: 400px;
}

.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.results-count {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

.results-count strong {
  color: var(--color-primary);
}

/* ===== Restaurant Cards ===== */
.restaurant-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.restaurant-card {
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}

.restaurant-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card-body {
  padding: 1.25rem;
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.75rem;
  gap: 0.75rem;
}

.card-top h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.4;
}

.badge-genre {
  flex-shrink: 0;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: 20px;
  white-space: nowrap;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-bottom: 0.75rem;
}

.card-meta span {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.card-description {
  font-size: 0.9rem;
  color: var(--color-text);
  margin-bottom: 1rem;
  line-height: 1.65;
}

.card-features {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.feature-tag {
  background: var(--color-tag);
  color: var(--color-tag-text);
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 20px;
  font-weight: 500;
}

.room-type-tag {
  background: var(--color-primary);
  color: #fff;
}

.card-map {
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 1rem;
  border: 1px solid var(--color-border);
}

.card-map iframe {
  width: 100%;
  height: 200px;
  border: none;
  display: block;
}

.card-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-primary-light);
  transform: translateY(-1px);
}

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

.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
}

.btn-disabled {
  background: var(--color-border);
  color: var(--color-text-light);
  cursor: default;
  pointer-events: none;
}

/* ===== No Results ===== */
.no-results {
  text-align: center;
  padding: 4rem 1rem;
  color: var(--color-text-light);
}

.no-results .icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
}

.no-results p {
  font-size: 1rem;
}

/* ===== Feedback Section ===== */
.feedback-section {
  max-width: 720px;
  margin: 3rem auto 0;
  padding: 0 1.5rem;
}

.feedback-inner {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}

.feedback-section h2 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.feedback-description {
  font-size: 0.88rem;
  color: var(--color-text-light);
  margin-bottom: 1.5rem;
  line-height: 1.65;
}

.feedback-form .form-group {
  margin-bottom: 1.25rem;
}

.feedback-form label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.35rem;
}

.feedback-form .required {
  color: #c0392b;
}

.feedback-form select,
.feedback-form input,
.feedback-form textarea {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  background: #fff;
  color: var(--color-text);
  font-family: inherit;
  transition: border-color var(--transition);
}

.feedback-form textarea {
  resize: vertical;
  min-height: 100px;
}

.feedback-form select:focus,
.feedback-form input:focus,
.feedback-form textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(200, 149, 108, 0.2);
}

.feedback-submit {
  padding: 0.7rem 2rem;
  font-size: 0.95rem;
}

.feedback-success {
  background: #e8f5e9;
  border: 1px solid #a5d6a7;
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  text-align: center;
  color: #2e7d32;
  font-size: 0.95rem;
  margin-top: 1rem;
}

/* ===== Footer ===== */
.site-footer {
  text-align: center;
  padding: 2rem 1rem;
  margin-top: 3rem;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-light);
  font-size: 0.8rem;
}

.site-footer a {
  color: var(--color-accent);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.disclaimer {
  max-width: 700px;
  margin: 0 auto 0.75rem;
  font-size: 0.75rem;
  line-height: 1.6;
  color: #999;
}

.footer-nav {
  margin-bottom: 1rem;
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  font-size: 0.85rem;
}

.footer-nav a {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 500;
}

.footer-nav a:hover {
  text-decoration: underline;
}

.footer-nav span {
  color: var(--color-border);
}

/* ===== Mobile Toggle ===== */
.filter-toggle-btn {
  display: none;
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  z-index: 200;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: 50px;
  padding: 0.85rem 1.25rem;
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  font-family: inherit;
}

/* ===== Responsive ===== */
@media (max-width: 800px) {
  .site-header h1 {
    font-size: 1.35rem;
  }

  .main-container {
    grid-template-columns: 1fr;
    padding: 1rem;
  }

  .filter-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 300;
    border-radius: 0;
    overflow-y: auto;
    transform: translateY(100%);
    transition: transform 0.35s ease;
  }

  .filter-sidebar.is-open {
    transform: translateY(0);
  }

  .filter-sidebar .filter-close-btn {
    display: block;
    text-align: right;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-text);
    margin-bottom: 0.5rem;
  }

  .filter-toggle-btn {
    display: flex;
    align-items: center;
    gap: 0.4rem;
  }

  .card-map iframe {
    height: 180px;
  }

  body {
    padding-bottom: 80px;
  }

  .btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.9rem;
    min-height: 48px;
  }
}

@media (min-width: 801px) {
  .filter-sidebar .filter-close-btn {
    display: none;
  }
}

/* ===== Loading ===== */
.loading {
  text-align: center;
  padding: 3rem;
  color: var(--color-text-light);
}

/* ===== Accessibility ===== */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Skip to content */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 0.5rem 1rem;
  z-index: 999;
  font-size: 0.9rem;
}

.skip-link:focus {
  top: 0;
}