/* =============================================
   用例収集アプリ — common.css
   国語辞典世界観
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@300;400;500;700&family=Shippori+Mincho:wght@400;500;700;800&family=Libre+Baskerville:ital,wght@0,400;1,400&display=swap');

:root {
  --clr-paper:      #f0e8cc;
  --clr-paper-dk:   #e4d8b0;
  --clr-paper-deep: #d8cb98;
  --clr-ink:        #1a120a;
  --clr-ink-mid:    #3a2c18;
  --clr-ink-light:  #6b5538;
  --clr-vermilion:  #c0392b;
  --clr-cobalt:     #1a4a7a;
  --clr-cobalt-lt:  rgba(26,74,122,0.1);
  --clr-gold:       #9a7a32;
  --clr-rule:       #c0a870;
  --clr-rule-lt:    #d8c898;
  --clr-muted:      #a08060;
  --clr-green:      #2e7d50;

  --font-m: 'Shippori Mincho','Noto Serif JP','Yu Mincho',serif;
  --font-e: 'Libre Baskerville',Georgia,serif;
  --ease-book: cubic-bezier(0.25,0.46,0.45,0.94);

  --nav-h: 3rem;
  --content-max: 62rem;
  --content-pad: clamp(0.85rem,4vw,2rem);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-m);
  background: var(--clr-paper-dk);
  color: var(--clr-ink);
  min-height: 100svh;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
}

/* ─── 横罫線テクスチャ ─── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent 27px,
    rgba(139,110,60,0.07) 27px,
    rgba(139,110,60,0.07) 28px
  );
}

/* ─── ナビゲーション ─── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  background: var(--clr-ink);
  border-bottom: 3px solid var(--clr-vermilion);
  display: flex;
  align-items: stretch;
  box-shadow: 0 2px 12px rgba(0,0,0,0.28);
  flex-shrink: 0;
}

.nav-brand {
  display: flex;
  align-items: center;
  padding: 0 clamp(0.75rem,2.5vw,1.5rem);
  border-right: 1px solid rgba(192,168,112,0.15);
  text-decoration: none;
  flex-shrink: 0;
}
.nav-brand-text {
  font-size: clamp(0.72rem,1.4vw,0.85rem);
  font-weight: 700;
  color: var(--clr-paper);
  letter-spacing: 0.15em;
  line-height: 1.3;
}
.nav-brand-sub {
  font-family: var(--font-e);
  font-style: italic;
  font-size: 0.6em;
  color: var(--clr-rule);
  letter-spacing: 0.1em;
  display: block;
}

.nav-links {
  display: flex;
  align-items: stretch;
  flex: 1;
  overflow-x: auto;
  scrollbar-width: none;
}
.nav-links::-webkit-scrollbar { display: none; }

.nav-link {
  display: flex;
  align-items: center;
  padding: 0 clamp(0.65rem,2vw,1.1rem);
  text-decoration: none;
  font-size: clamp(0.62rem,1.2vw,0.75rem);
  color: var(--clr-rule);
  letter-spacing: 0.1em;
  white-space: nowrap;
  transition: color 0.15s, background 0.15s;
  border-bottom: 2px solid transparent;
}
.nav-link:hover { color: var(--clr-paper); }
.nav-link.active {
  color: var(--clr-paper);
  border-bottom-color: var(--clr-vermilion);
}

.nav-auth {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0 clamp(0.65rem,2vw,1.1rem);
  margin-left: auto;
  border-left: 1px solid rgba(192,168,112,0.15);
  flex-shrink: 0;
}
.nav-username {
  font-size: clamp(0.6rem,1.1vw,0.7rem);
  color: var(--clr-rule);
  letter-spacing: 0.06em;
}

.nav-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.28em 0.75em;
  font-size: clamp(0.58rem,1vw,0.68rem);
  font-family: var(--font-m);
  letter-spacing: 0.08em;
  border-radius: 2px;
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.15s, background 0.15s;
  border: none;
}
.nav-btn:hover { opacity: 0.85; }
.nav-btn { background: var(--clr-cobalt); color: var(--clr-paper); }
.nav-btn--ghost {
  background: transparent;
  color: var(--clr-rule);
  border: 1px solid rgba(192,168,112,0.35);
}
.nav-btn--ghost:hover { background: rgba(192,168,112,0.1); opacity: 1; }

/* ─── メイン ─── */
main {
  position: relative;
  z-index: 1;
  flex: 1;
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: clamp(1.25rem,3vw,2rem) var(--content-pad) clamp(2rem,5vw,3.5rem);
}

/* ─── ページヘッダー ─── */
.page-header {
  margin-bottom: clamp(1.25rem,3vw,2rem);
  border-bottom: 1px solid var(--clr-rule);
  padding-bottom: 0.85rem;
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.page-title {
  font-size: clamp(1.1rem,2.8vw,1.5rem);
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--clr-ink);
}
.page-title-en {
  font-family: var(--font-e);
  font-style: italic;
  font-size: clamp(0.62rem,1.2vw,0.75rem);
  color: var(--clr-muted);
  letter-spacing: 0.15em;
}

/* ─── 用例カード ─── */
.card {
  background: var(--clr-paper);
  border: 1px solid var(--clr-rule);
  border-left: 4px solid var(--clr-cobalt);
  padding: clamp(0.85rem,2.5vw,1.25rem) clamp(1rem,3vw,1.5rem);
  position: relative;
  transition: border-left-color 0.18s var(--ease-book), box-shadow 0.18s;
  overflow-wrap: anywhere;
  min-width: 0;
}
.card:hover {
  border-left-color: var(--clr-vermilion);
  box-shadow: 2px 2px 0 var(--clr-rule-lt);
}

.card-headword {
  font-size: clamp(1.1rem,2.5vw,1.4rem);
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--clr-ink);
  margin-bottom: 0.25rem;
  line-height: 1.3;
}
.card-role {
  display: inline-block;
  font-size: clamp(0.58rem,1vw,0.68rem);
  color: var(--clr-paper);
  background: var(--clr-cobalt);
  padding: 0.08em 0.45em;
  border-radius: 2px;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}
.card-meaning {
  font-size: clamp(0.72rem,1.3vw,0.82rem);
  color: var(--clr-ink-mid);
  line-height: 1.85;
  letter-spacing: 0.04em;
  margin-bottom: 0.5rem;
  padding-left: 0.5rem;
  border-left: 2px solid var(--clr-rule-lt);
}
.card-example {
  font-size: clamp(0.78rem,1.5vw,0.9rem);
  color: var(--clr-ink-mid);
  line-height: 2;
  letter-spacing: 0.05em;
  margin-bottom: 0.65rem;
}
.card-example em {
  font-style: normal;
  font-weight: 700;
  color: var(--clr-ink);
  border-bottom: 1.5px solid var(--clr-vermilion);
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  font-size: clamp(0.55rem,0.95vw,0.65rem);
  color: var(--clr-muted);
  letter-spacing: 0.06em;
  font-family: var(--font-e);
  font-style: italic;
  border-top: 1px dotted var(--clr-rule-lt);
  padding-top: 0.5rem;
  margin-top: 0.5rem;
}
.card-meta-item::before { content: '〔'; }
.card-meta-item::after  { content: '〕'; }

.card-private-badge {
  position: absolute;
  top: 0.5rem;
  right: 0.65rem;
  font-size: 0.55rem;
  color: rgba(106,32,64,0.5);
  border: 1px solid rgba(106,32,64,0.25);
  padding: 0.1em 0.4em;
  border-radius: 2px;
  letter-spacing: 0.1em;
}

/* ─── カードグリッド ─── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 28rem), 1fr));
  gap: 0.85rem;
}

/* ─── ボタン ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1.2rem;
  font-family: var(--font-m);
  font-size: clamp(0.72rem,1.4vw,0.82rem);
  letter-spacing: 0.1em;
  border-radius: 2px;
  border: none;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.1s;
  text-decoration: none;
  min-height: 2.2rem;
}
.btn:hover  { opacity: 0.85; }
.btn:active { transform: scale(0.97); }
.btn--primary { background: var(--clr-cobalt);    color: var(--clr-paper); }
.btn--vermilion { background: var(--clr-vermilion); color: var(--clr-paper); }
.btn--gold    { background: var(--clr-gold);      color: var(--clr-paper); }
.btn--ghost {
  background: transparent;
  color: var(--clr-muted);
  border: 1.5px solid var(--clr-rule);
}
.btn--ghost:hover { background: var(--clr-paper); opacity: 1; }
.btn--sm { padding: 0.3rem 0.75rem; font-size: clamp(0.62rem,1.1vw,0.7rem); min-height: 1.8rem; }

/* 用例カード作成ページへのFABボタン */
.fab-create {
  position: fixed;
  bottom: clamp(1.25rem,4vw,2rem);
  right: clamp(1.25rem,4vw,2rem);
  z-index: 50;
  padding: 0.65rem 1.4rem;
  background: var(--clr-vermilion);
  color: var(--clr-paper);
  font-family: var(--font-m);
  font-size: clamp(0.72rem,1.4vw,0.82rem);
  font-weight: 700;
  letter-spacing: 0.12em;
  border: none;
  border-radius: 2rem;
  cursor: pointer;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(192,57,43,0.35);
  transition: opacity 0.15s, transform 0.15s, box-shadow 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.fab-create:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(192,57,43,0.4);
}

/* ─── フォーム ─── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1rem;
}
.form-label {
  font-size: clamp(0.65rem,1.2vw,0.75rem);
  font-weight: 700;
  color: var(--clr-gold);
  letter-spacing: 0.2em;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.form-required {
  font-size: 0.7em;
  color: var(--clr-vermilion);
  font-weight: 400;
}
.form-control {
  width: 100%;
  padding: 0.55rem 0.8rem;
  font-family: var(--font-m);
  font-size: clamp(0.8rem,1.5vw,0.92rem);
  letter-spacing: 0.04em;
  background: var(--clr-paper);
  border: 1.5px solid var(--clr-rule);
  border-radius: 2px;
  color: var(--clr-ink);
  outline: none;
  transition: border-color 0.18s, box-shadow 0.18s;
  overflow-wrap: anywhere;
  min-width: 0;
}
.form-control:focus {
  border-color: var(--clr-cobalt);
  box-shadow: 0 0 0 2px var(--clr-cobalt-lt);
}
textarea.form-control {
  resize: vertical;
  min-height: 5rem;
  line-height: 1.9;
}
.form-hint {
  font-size: clamp(0.58rem,1vw,0.65rem);
  color: var(--clr-muted);
  letter-spacing: 0.04em;
  font-family: var(--font-e);
  font-style: italic;
}

/* ─── トグル（公開/非公開） ─── */
.toggle-wrap {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}
.toggle {
  position: relative;
  width: 2.8rem;
  height: 1.4rem;
  flex-shrink: 0;
}
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-track {
  position: absolute;
  inset: 0;
  background: var(--clr-rule);
  border-radius: 2rem;
  cursor: pointer;
  transition: background 0.2s;
}
.toggle input:checked + .toggle-track { background: var(--clr-cobalt); }
.toggle-track::after {
  content: '';
  position: absolute;
  left: 3px; top: 3px;
  width: 1rem; height: 1rem;
  background: white;
  border-radius: 50%;
  transition: left 0.2s;
}
.toggle input:checked + .toggle-track::after { left: 1.5rem; }
.toggle-label {
  font-size: clamp(0.72rem,1.3vw,0.82rem);
  color: var(--clr-ink-mid);
  letter-spacing: 0.06em;
}

/* ─── セクション区切り ─── */
.section-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1.25rem 0 0.85rem;
}
.section-divider::before,
.section-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--clr-rule), transparent);
}
.section-divider-text {
  font-size: clamp(0.6rem,1.1vw,0.7rem);
  color: var(--clr-gold);
  letter-spacing: 0.35em;
  font-weight: 700;
  white-space: nowrap;
}

/* ─── メッセージ ─── */
.msg {
  padding: 0.65rem 1rem;
  border-radius: 2px;
  font-size: clamp(0.72rem,1.3vw,0.82rem);
  letter-spacing: 0.04em;
  margin-bottom: 1rem;
}
.msg--ok    { background: rgba(46,125,80,0.08);  border: 1px solid rgba(46,125,80,0.3);  color: var(--clr-green); }
.msg--err   { background: rgba(192,57,43,0.08);  border: 1px solid rgba(192,57,43,0.3);  color: var(--clr-vermilion); }
.msg--info  { background: var(--clr-cobalt-lt);  border: 1px solid rgba(26,74,122,0.25); color: var(--clr-cobalt); }

/* ─── ローディング ─── */
.loading {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--clr-muted);
  font-size: clamp(0.75rem,1.4vw,0.88rem);
  letter-spacing: 0.15em;
}
.loading::after {
  content: '……';
  animation: ellipsis 1.5s infinite;
}
@keyframes ellipsis {
  0%   { content: '．'; }
  33%  { content: '．．'; }
  66%  { content: '．．．'; }
  100% { content: ''; }
}

/* ─── 空状態 ─── */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--clr-muted);
}
.empty-icon { font-size: 2.5rem; margin-bottom: 0.75rem; opacity: 0.35; }
.empty-text { font-size: clamp(0.75rem,1.4vw,0.88rem); letter-spacing: 0.1em; }

/* ─── ページネーション ─── */
.pagination {
  display: flex;
  justify-content: center;
  gap: 0.4rem;
  margin-top: 1.5rem;
}

/* ─── モーダル ─── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(26,18,10,0.6);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  backdrop-filter: blur(2px);
}
.modal-overlay[hidden] { display: none; }
.modal {
  background: var(--clr-paper);
  border: 1px solid var(--clr-rule);
  border-top: 3px solid var(--clr-cobalt);
  width: 100%;
  max-width: 36rem;
  max-height: 90svh;
  overflow-y: auto;
  padding: clamp(1.25rem,4vw,2rem);
  position: relative;
  box-shadow: 4px 4px 0 var(--clr-rule-lt);
}
.modal-close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: none;
  border: none;
  font-size: 1.2rem;
  color: var(--clr-muted);
  cursor: pointer;
  line-height: 1;
}
.modal-close:hover { color: var(--clr-vermilion); }
.modal-title {
  font-size: clamp(0.9rem,2vw,1.1rem);
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--clr-ink);
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--clr-rule-lt);
}

/* ─── フッター ─── */
.site-footer {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 1.25rem;
  border-top: 1px solid var(--clr-rule-lt);
  font-family: var(--font-e);
  font-style: italic;
  font-size: clamp(0.55rem,1vw,0.65rem);
  color: var(--clr-muted);
  letter-spacing: 0.1em;
}

/* ─── レスポンシブ ─── */
@media (max-width: 480px) {
  .cards-grid { grid-template-columns: 1fr; }
}

/* ─── Focus ─── */
:focus-visible { outline: 2px solid var(--clr-cobalt); outline-offset: 2px; }

/* ─── Reduced Motion ─── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}