/* ============================================================
   Variables & Reset
   ============================================================ */
:root {
  --color-primary:    #2563EB;
  --color-primary-dk: #1D4ED8;
  --color-danger:     #EF4444;
  --color-danger-dk:  #DC2626;
  --color-bg:         #F1F5F9;
  --color-surface:    #FFFFFF;
  --color-border:     #E2E8F0;
  --color-text:       #1E293B;
  --color-text-sub:   #64748B;
  --radius:           10px;
  --shadow:           0 1px 4px rgba(0,0,0,.10);
  --shadow-lg:        0 8px 32px rgba(0,0,0,.16);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans",
               "Yu Gothic UI", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
}

a { color: var(--color-primary); }
a:hover { text-decoration: underline; }

/* ============================================================
   Header
   ============================================================ */
header {
  background: #1E293B;
  color: #fff;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  position: sticky;
  top: 0;
  z-index: 10;
}

header h1 {
  font-size: 1.1rem;
  font-weight: 700;
  white-space: nowrap;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 16px;
  border: none;
  border-radius: 6px;
  font-size: .875rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s;
  white-space: nowrap;
}
.btn-primary   { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dk); }
.btn-secondary { background: var(--color-border); color: var(--color-text); }
.btn-secondary:hover { background: #CBD5E1; }
.btn-danger    { background: var(--color-danger); color: #fff; }
.btn-danger:hover { background: var(--color-danger-dk); }
.btn-sm { padding: 4px 10px; font-size: .8rem; }

/* ============================================================
   Utilities
   ============================================================ */
.hidden { display: none !important; }

.loading, .empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--color-text-sub);
  font-size: 1rem;
}

/* ============================================================
   Status Badge
   ============================================================ */
.status-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .02em;
}
/* JS側でインラインスタイル（color / background-color）を設定 */

/* ============================================================
   Venue Grid
   ============================================================ */
main { padding: 20px; max-width: 1200px; margin: 0 auto; }

#venue-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.venue-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  cursor: pointer;
  transition: box-shadow .2s, transform .15s;
  border: 1px solid var(--color-border);
}
.venue-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card-name {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 8px 0 12px;
  line-height: 1.4;
}

.card-info { display: flex; flex-direction: column; gap: 4px; }
.card-info p { font-size: .85rem; color: var(--color-text-sub); }
.card-info .label { color: var(--color-text); font-weight: 600; }

/* ============================================================
   Modal Overlay
   ============================================================ */
#modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  z-index: 100;
  padding: 20px;
  overflow-y: auto;
}

#venue-modal {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 640px;
  position: relative;
  margin: auto;
}

.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 20px 20px 0;
}

.modal-header h2 { font-size: 1.2rem; font-weight: 700; line-height: 1.4; }

#modal-close {
  position: absolute;
  top: 14px;
  right: 16px;
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--color-text-sub);
  padding: 0 4px;
  line-height: 1;
  z-index: 1;
}
#modal-close:hover { color: var(--color-text); }

/* ============================================================
   View Mode
   ============================================================ */
#view-mode { padding: 16px 20px 0; }

.view-actions {
  display: flex;
  gap: 8px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.view-fields {
  display: grid;
  grid-template-columns: 7em 1fr;
  gap: 6px 12px;
  margin-top: 16px;
  font-size: .9rem;
}
.view-fields dt {
  color: var(--color-text-sub);
  font-weight: 600;
  padding-top: 2px;
}
.view-fields dd { word-break: break-all; }

/* ============================================================
   Edit Form
   ============================================================ */
#edit-mode { padding: 0 20px; }

#edit-mode h2 { font-size: 1.1rem; font-weight: 700; margin-bottom: 16px; }

.form-section { margin-bottom: 20px; }

.form-section-title {
  font-size: .8rem;
  font-weight: 700;
  color: var(--color-text-sub);
  text-transform: uppercase;
  letter-spacing: .06em;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 4px;
  margin-bottom: 12px;
}

.form-group { margin-bottom: 12px; }
.form-group label {
  display: block;
  font-size: .83rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: .9rem;
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color .15s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(37,99,235,.15);
}
.form-group textarea { resize: vertical; min-height: 72px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  padding: 16px 20px;
  border-top: 1px solid var(--color-border);
  margin-top: 8px;
}

/* ============================================================
   Visits Section
   ============================================================ */
#visits-section {
  margin: 0 20px;
  padding: 16px 0;
  border-top: 1px solid var(--color-border);
}

#visits-section h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.visits-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 16px; }

.visit-item {
  background: var(--color-bg);
  border-radius: 8px;
  padding: 12px;
  border: 1px solid var(--color-border);
}
.visit-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}
.visit-date { font-size: .85rem; font-weight: 700; color: var(--color-text); }
.visit-memo { font-size: .9rem; color: var(--color-text-sub); white-space: pre-wrap; }
.no-visits { font-size: .9rem; color: var(--color-text-sub); margin-bottom: 12px; }

.visit-add-form { display: flex; flex-direction: column; gap: 8px; }
.visit-add-form input,
.visit-add-form textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: .9rem;
}
.visit-add-form textarea { resize: vertical; min-height: 60px; }
.visit-add-form button { align-self: flex-start; }

/* modal bottom spacing */
.modal-bottom-pad { height: 20px; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 480px) {
  header h1 { font-size: .95rem; }
  main { padding: 12px; }
  #venue-grid { grid-template-columns: 1fr; gap: 12px; }
  #modal-overlay { padding: 0; align-items: flex-end; }
  #venue-modal {
    border-radius: var(--radius) var(--radius) 0 0;
    max-height: 92vh;
    overflow-y: auto;
  }
  .form-row { grid-template-columns: 1fr; }
  .view-fields { grid-template-columns: 6em 1fr; }
}