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

:root {
  --color-primary:   #1a56a0;
  --color-primary-light: #e8f0fb;
  --color-setsumeikai:  #2563eb;
  --color-open-campus: #059669;
  --color-joint:        #d97706;
  --color-pretest:      #dc2626;
  --color-personal:     #7c3aed;

  --bg-app:    #f1f5f9;
  --bg-card:   #ffffff;
  --border:    #e2e8f0;
  --text-main: #1e293b;
  --text-sub:  #64748b;
  --text-sm:   0.8125rem;
  --radius:    8px;
  --shadow:    0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
}

.hidden { display: none !important; }

body {
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  background: var(--bg-app);
  color: var(--text-main);
  font-size: 0.9375rem;
  line-height: 1.6;
}

img { display: block; }
button { cursor: pointer; }

/* ==============================
   Header
============================== */
.site-header {
  background: #660066;
  color: #fff;
  padding: 0.875rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.site-header h1 {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.site-header .subtitle {
  font-size: var(--text-sm);
  opacity: 0.8;
  margin-left: auto;
}

/* ==============================
   Main Layout
============================== */
.app-layout {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 1rem;
  padding: 1rem;
  max-width: 1280px;
  margin: 0 auto;
  align-items: start;
}

/* ==============================
   Calendar Section
============================== */
.calendar-section {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
}

.calendar-toolbar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.calendar-toolbar .legend {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-left: auto;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  color: var(--text-sub);
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.btn-add {
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0.4rem 0.875rem;
  font-size: var(--text-sm);
  font-weight: 600;
  transition: background .15s;
}
.btn-add:hover { background: #1446880; filter: brightness(1.1); }

/* FullCalendar overrides */
.fc .fc-toolbar-title { font-size: 1rem; font-weight: 700; }
.fc .fc-button { font-size: 0.8125rem !important; }
.fc .fc-button-primary {
  background-color: var(--color-primary) !important;
  border-color: var(--color-primary) !important;
}
.fc .fc-button-primary:hover {
  filter: brightness(1.1) !important;
}
/* 月/リスト切り替え: 選択中のビューが分かるよう色分けする */
.fc .fc-dayGridMonth-button,
.fc .fc-listMonth-button {
  background-color: #fff !important;
  color: var(--color-primary) !important;
}
.fc .fc-dayGridMonth-button:hover,
.fc .fc-listMonth-button:hover {
  background-color: var(--color-primary-light) !important;
}
.fc .fc-dayGridMonth-button.fc-button-active,
.fc .fc-listMonth-button.fc-button-active {
  background-color: var(--color-primary) !important;
  color: #fff !important;
}
.fc .fc-day-today { background: var(--color-primary-light) !important; }
.fc .fc-event {
  border: none !important;
  font-size: 0.75rem;
  padding: 1px 4px;
  border-radius: 3px;
  cursor: pointer;
  color: #fff !important;
  font-weight: 400 !important;
}
.fc .fc-event:hover { filter: brightness(1.1); }
.fc-daygrid-event-dot { display: none; }

/* Holiday name label */
.fc .fc-daygrid-day-top { align-items: center; }
.holiday-name {
  font-size: 0.6rem;
  color: #dc2626;
  line-height: 1.2;
  padding-left: 4px;
}

/* Sat / Sun / Holiday colors */
.fc .fc-col-header-cell.fc-day-sat a { color: #1d4ed8; }
.fc .fc-col-header-cell.fc-day-sun a { color: #dc2626; }
.fc .fc-day-sat .fc-daygrid-day-number { color: #1d4ed8; }
.fc .fc-day-sun .fc-daygrid-day-number,
.fc .fc-day-holiday .fc-daygrid-day-number { color: #dc2626; }

/* Personal events: dashed left border to distinguish from public */
.fc .fc-event.ev-personal {
  opacity: 0.85;
  border-left: 3px dashed rgba(255,255,255,.6) !important;
}

/* Category colors */
.cat-説明会           { background-color: var(--color-setsumeikai) !important; }
.cat-オープンキャンパス { background-color: var(--color-open-campus) !important; }
.cat-合同説明会        { background-color: var(--color-joint) !important; }
.cat-プレテスト        { background-color: var(--color-pretest) !important; }
.cat-個人メモ          { background-color: var(--color-personal) !important; }

/* ==============================
   Map + Detail Section
============================== */
.map-section {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.map-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.map-card-header {
  padding: 0.625rem 1rem;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-sub);
  background: #f8fafc;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.map-tabs {
  display: flex;
  overflow-x: auto;
  border-bottom: 1px solid var(--border);
  background: #f8fafc;
}

.map-tab {
  flex-shrink: 0;
  padding: 0.4rem 0.875rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-sub);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: color .15s, border-color .15s;
}
.map-tab:hover { color: var(--color-primary); }
.map-tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.map-card iframe {
  width: 100%;
  height: 320px;
  border: none;
  display: block;
}

.btn-map-reset {
  font-size: 0.75rem;
  color: var(--color-primary);
  background: none;
  border: none;
  padding: 0;
  text-decoration: underline;
}

/* Event Detail Panel */
.event-detail {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
}

.event-detail.hidden { display: none; }

.event-detail-header {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  margin-bottom: 0.75rem;
}

.event-detail-header .category-badge {
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 12px;
  color: #fff;
  white-space: nowrap;
  margin-top: 2px;
  flex-shrink: 0;
}

.event-detail-header h2 {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.4;
}

.event-meta {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  font-size: var(--text-sm);
  color: var(--text-sub);
  margin-bottom: 0.75rem;
}

.event-meta span { display: flex; align-items: center; gap: 0.375rem; }

.event-description {
  font-size: var(--text-sm);
  color: var(--text-main);
  padding: 0.5rem 0.75rem;
  background: #f8fafc;
  border-radius: 4px;
  margin-bottom: 0.75rem;
  line-height: 1.6;
}
.event-description:empty { display: none; }

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

.btn-map-view {
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0.4rem 0.875rem;
  font-size: var(--text-sm);
  font-weight: 600;
}
.btn-map-view:hover { filter: brightness(1.1); }
.btn-map-view.hidden { display: none; }

.btn-edit-event {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.4rem 0.875rem;
  font-size: var(--text-sm);
  color: var(--text-main);
}
.btn-edit-event:hover { background: #f8fafc; }
.btn-edit-event.hidden { display: none; }

.btn-delete-event {
  background: none;
  border: 1px solid #fecaca;
  border-radius: 6px;
  padding: 0.4rem 0.875rem;
  font-size: var(--text-sm);
  color: var(--color-nyushi);
}
.btn-delete-event:hover { background: #fff5f5; }
.btn-delete-event.hidden { display: none; }

.storage-note {
  font-size: 0.75rem;
  color: var(--text-sub);
  padding: 0.5rem 0.75rem;
  border-left: 2px solid var(--border);
  line-height: 1.5;
}

/* Placeholder before event selected */
.event-placeholder {
  text-align: center;
  padding: 1.5rem 1rem;
  color: var(--text-sub);
  font-size: var(--text-sm);
}

/* ==============================
   Modal
============================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
}
.modal-overlay.hidden { display: none; }

.modal-box {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: 0 20px 40px rgba(0,0,0,.2);
  width: 100%;
  max-width: 440px;
  padding: 1.5rem;
}

.modal-box h2 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 1.125rem;
}

.form-group {
  margin-bottom: 0.875rem;
}

.form-group label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-sub);
  margin-bottom: 0.25rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  font-size: 0.9375rem;
  font-family: inherit;
  color: var(--text-main);
  background: #fff;
  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 3px rgba(26,86,160,.12);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.form-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
  margin-top: 1.125rem;
}

.btn-cancel {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.5rem 1.25rem;
  font-size: 0.9375rem;
  color: var(--text-main);
}
.btn-cancel:hover { background: #f8fafc; }

.btn-save {
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0.5rem 1.25rem;
  font-size: 0.9375rem;
  font-weight: 600;
}
.btn-save:hover { filter: brightness(1.1); }

/* ==============================
   Share Panel
============================== */
.share-panel {
  display: none;
}

.share-panel-title {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text-sub);
  margin-bottom: 0.875rem;
  letter-spacing: 0.03em;
}

.btn-generate-code {
  width: 100%;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0.5rem 1rem;
  font-size: var(--text-sm);
  font-weight: 600;
  text-align: center;
}
.btn-generate-code:hover { filter: brightness(1.1); }

.share-or {
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-sub);
  margin: 0.625rem 0;
  position: relative;
}
.share-or::before,
.share-or::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 30%;
  height: 1px;
  background: var(--border);
}
.share-or::before { left: 0; }
.share-or::after  { right: 0; }

.share-join-row {
  display: flex;
  gap: 0.5rem;
}

.input-room-code {
  flex: 1;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.45rem 0.75rem;
  font-size: var(--text-sm);
  font-family: "SF Mono", "Fira Code", monospace;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-main);
}
.input-room-code:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26,86,160,.12);
}

.btn-join-room {
  background: #f1f5f9;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.45rem 0.875rem;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
}
.btn-join-room:hover { background: #e2e8f0; }

/* Active state */
.share-code-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--color-primary-light);
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.625rem;
}

.share-code-label {
  font-size: 0.75rem;
  color: var(--text-sub);
  white-space: nowrap;
}

.share-code-value {
  font-family: "SF Mono", "Fira Code", monospace;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  flex: 1;
}

.btn-copy-code {
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: 4px;
  padding: 0.2rem 0.625rem;
  font-size: 0.75rem;
  white-space: nowrap;
}
.btn-copy-code:hover { filter: brightness(1.1); }

.share-active-note {
  font-size: 0.75rem;
  color: var(--text-sub);
  margin-bottom: 0.625rem;
  line-height: 1.5;
}

.btn-leave-room {
  background: none;
  border: 1px solid #fecaca;
  border-radius: 6px;
  padding: 0.375rem 0.875rem;
  font-size: 0.75rem;
  color: var(--color-nyushi);
  width: 100%;
}
.btn-leave-room:hover { background: #fff5f5; }

/* ==============================
   Mobile Event Detail Modal
============================== */
.ev-detail-modal { display: none; }

@media (max-width: 820px) {
  .ev-detail-modal {
    position: fixed;
    inset: 0;
    background: rgba(15,23,42,.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 900;
    padding: 1rem;
  }
  .ev-detail-modal.hidden { display: none !important; }

  .ev-detail-modal-box {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: 0 20px 40px rgba(0,0,0,.2);
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    padding: 1.25rem;
    position: relative;
  }

  .ev-detail-close {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--text-sub);
    line-height: 1;
    padding: 0.25rem 0.5rem;
  }
}

/* ==============================
   Responsive: Tablet (820px)
============================== */
@media (max-width: 820px) {
  .app-layout {
    grid-template-columns: 1fr;
  }

  .map-card iframe {
    height: 260px;
  }

  .site-header .subtitle { display: none; }
}

/* ==============================
   Responsive: Mobile (560px)
============================== */
@media (max-width: 560px) {
  .site-header { padding: 0.75rem 1rem; }
  .site-header h1 { font-size: 1rem; }

  .app-layout { padding: 0.75rem; gap: 0.75rem; }

  .calendar-section { padding: 0.75rem; }

  .calendar-toolbar .legend { display: none; }

  .map-card iframe { height: 220px; }

  .form-row { grid-template-columns: 1fr; }
}