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

:root {
  /* ヘッダー：固定（切り替えで変わらない） */
  --header-bg:  #2D2A4A;
  --header-txt: #ffffff;

  /* 金沢テーマ：スカイブルー */
  --kanazawa-primary: #38BDF8;
  --kanazawa-dark:    #0284C7;
  --kanazawa-light:   #E0F4FF;
  --kanazawa-btn-bg:  #38BDF8;

  /* 野々市テーマ：ミントターコイズ */
  --nonoichi-primary: #00BFA5;
  --nonoichi-dark:    #009688;
  --nonoichi-light:   #E8FAF7;
  --nonoichi-btn-bg:  #00BFA5;

  /* アクセント（共通） */
  --accent-red:    #FF4757;
  --accent-orange: #FFA502;
  --sumi:          #2D2D2D;
  --bg:            #F8F7FF;
  --card-bg:       #ffffff;
  --shadow:        0 2px 12px rgba(0,0,0,.08);
  --radius:        16px;
  --radius-sm:     10px;

  /* アクティブ図書館（JS で body クラスにより切り替え） */
  --lib-primary: var(--kanazawa-primary);
  --lib-dark:    var(--kanazawa-dark);
  --lib-light:   var(--kanazawa-light);
}

body.lib-nonoichi {
  --lib-primary: var(--nonoichi-primary);
  --lib-dark:    var(--nonoichi-dark);
  --lib-light:   var(--nonoichi-light);
}

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  font-family: 'M PLUS Rounded 1c', sans-serif;
  background: var(--bg);
  color: var(--sumi);
  min-height: 100vh;
}

/* ========== Header（固定色・切り替えで変わらない） ========== */
header {
  background: var(--header-bg);
  color: var(--header-txt);
  padding: 16px 16px 13px;
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 3px 12px rgba(45,42,74,.35);
}

header h1 {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: .03em;
}

.header-sub {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 5px;
}

.timestamp { font-size: .72rem; opacity: .75; flex: 1; font-weight: 400; }

.refresh-btn {
  background: rgba(255,255,255,.15);
  border: 1.5px solid rgba(255,255,255,.35);
  color: #fff;
  border-radius: 20px;
  padding: 4px 14px;
  font-size: .78rem;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
  letter-spacing: .03em;
  transition: background .15s;
}
.refresh-btn:active { background: rgba(255,255,255,.28); }
.refresh-btn:disabled { opacity: .45; cursor: default; }

/* ========== Library Switcher ========== */
.lib-switcher {
  display: flex;
  gap: 0;
  background: #EEEDF8;
  padding: 8px 10px;
  gap: 8px;
}

.lib-btn {
  flex: 1;
  padding: 9px 8px;
  border: none;
  border-radius: 12px;
  font-family: 'M PLUS Rounded 1c', sans-serif;
  font-size: .83rem;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: .02em;
  transition: opacity .15s, transform .1s, box-shadow .15s;
}

/* 金沢ボタン：常時ピンク */
.lib-btn.kanazawa {
  background: var(--kanazawa-btn-bg);
  color: #fff;
}
/* 野々市ボタン：常時ミント */
.lib-btn.nonoichi {
  background: var(--nonoichi-btn-bg);
  color: #fff;
}

/* 非アクティブは薄く */
.lib-btn:not(.active) {
  opacity: .42;
}
/* アクティブは影つき・浮いた感じ */
.lib-btn.active {
  opacity: 1;
  box-shadow: 0 4px 12px rgba(0,0,0,.18);
  transform: translateY(-1px);
}

/* ========== Tabs ========== */
.tabs {
  display: flex;
  background: #fff;
  border-bottom: 2px solid var(--lib-light);
  transition: border-color .25s;
}

.tab {
  flex: 1;
  padding: 13px 8px;
  background: none;
  border: none;
  font-family: 'M PLUS Rounded 1c', sans-serif;
  font-size: .9rem;
  font-weight: 700;
  color: #aaa;
  cursor: pointer;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  letter-spacing: .02em;
  transition: color .2s, border-color .2s;
}

.tab.active {
  color: var(--lib-dark);
  border-bottom-color: var(--lib-primary);
}

.badge {
  display: inline-block;
  background: var(--lib-light);
  color: var(--lib-dark);
  border-radius: 999px;
  padding: 1px 8px;
  font-size: .73rem;
  font-weight: 800;
  min-width: 24px;
  text-align: center;
  transition: background .25s, color .25s;
}

.tab.active .badge {
  background: var(--lib-primary);
  color: #fff;
}

/* ========== Main ========== */
main { padding: 14px 12px 36px; max-width: 600px; margin: 0 auto; }

.panel.hidden { display: none; }

/* ========== Error banner ========== */
.error-banner {
  background: #FFF0F0;
  border: 1.5px solid #FFBDBD;
  color: #C0392B;
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin-bottom: 12px;
  font-size: .88rem;
  font-weight: 500;
}
.error-banner.hidden { display: none; }

/* ========== Cards ========== */
.member-section { margin-bottom: 6px; }

.member-name {
  font-size: .75rem;
  font-weight: 800;
  color: var(--lib-primary);
  padding: 10px 4px 5px;
  letter-spacing: .06em;
  text-transform: uppercase;
  transition: color .25s;
}

.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 15px 16px;
  margin-bottom: 10px;
  box-shadow: var(--shadow);
  border-left: 5px solid transparent;
  transition: border-color .25s;
}

.card-title {
  font-size: .95rem;
  font-weight: 700;
  line-height: 1.45;
  margin-bottom: 7px;
  color: var(--sumi);
}

.card-meta { font-size: .8rem; color: #888; font-weight: 500; }
.card-meta strong { color: var(--sumi); font-weight: 700; }

/* normal card: lib color left border */
.card.normal-card { border-left-color: var(--lib-light); }

/* Overdue */
.card.overdue {
  border-left-color: var(--accent-red);
  background: #FFF5F5;
}

.overdue-badge {
  display: inline-block;
  background: var(--accent-red);
  color: #fff;
  font-size: .68rem;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 20px;
  margin-left: 7px;
  vertical-align: middle;
  letter-spacing: .03em;
}

/* Urgent reservation */
.card.urgent {
  border-left-color: var(--accent-orange);
  background: #FFF8EE;
}

.days-left {
  margin-top: 6px;
  font-size: .8rem;
  font-weight: 800;
  color: var(--accent-orange);
}

/* Member error */
.card.member-error { border-left-color: #ddd; background: #FAFAFA; }
.card.member-error .card-title { color: #aaa; font-size: .85rem; font-weight: 500; }

/* ========== Empty state ========== */
.empty {
  text-align: center;
  padding: 52px 20px;
  color: #bbb;
  font-size: .9rem;
  font-weight: 500;
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.empty-icon { font-size: 2rem; margin-bottom: 10px; display: block; }

/* ========== Skeleton ========== */
@keyframes shimmer {
  0%   { background-position: -300px 0; }
  100% { background-position: 300px 0; }
}

.skeleton {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 15px 16px;
  margin-bottom: 10px;
  box-shadow: var(--shadow);
}

.skel-line {
  border-radius: 6px;
  background: linear-gradient(90deg, #eee 25%, #f7f7f7 50%, #eee 75%);
  background-size: 600px 100%;
  animation: shimmer 1.4s infinite;
}

.skel-title { height: 15px; width: 72%; margin-bottom: 12px; }
.skel-meta  { height: 11px; width: 42%; }