/* ==========================================
   contests.css
   コンテストページ固有スタイル
========================================== */
/* ---- 共通ユーティリティ ---- */
.state-msg {
  font-family: 'Silkscreen', cursive;
  font-size: 0.75rem;
  color: var(--nav-link-color);
  letter-spacing: 0.1em;
  text-align: center;
  padding: 2rem;
  margin: 0;
}
.error-msg {
  font-family: 'Silkscreen', cursive;
  font-size: 0.75rem;
  color: #dc2626;
  letter-spacing: 0.05em;
  text-align: center;
  padding: 2rem;
  margin: 0;
}
/* ======================================
   一覧ページ
====================================== */
.contests-page {
  max-width: 1152px;
  width: 100%;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  flex: 1;
}
.page-heading {
  font-family: 'Silkscreen', cursive;
  font-size: 1.5rem;
  letter-spacing: 0.1em;
  margin: 0 0 1.5rem 0;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--text-color);
}
/* フィルタータブ */
.filter-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}
.filter-tab {
  font-family: 'Silkscreen', cursive;
  font-size: 0.7rem;
  padding: 0.4rem 1rem;
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--nav-link-color);
  cursor: pointer;
  letter-spacing: 0.05em;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.filter-tab:hover  { color: var(--text-color); border-color: var(--text-color); }
.filter-tab.active { background: var(--btn-bg); color: var(--btn-text); border-color: var(--btn-bg); }
/* コンテストカード */
.contest-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px dashed var(--border-color);
  text-decoration: none;
  color: var(--text-color);
  transition: opacity 0.2s;
}
.contest-card:last-child { border-bottom: none; }
.contest-card:hover { opacity: 0.7; }
.contest-card-badge {
  font-family: 'Silkscreen', cursive;
  font-size: 0.6rem;
  padding: 0.3rem 0;
  width: 72px;
  flex-shrink: 0;
  text-align: center;
  color: #fff;
  letter-spacing: 0.05em;
}
.badge-live     { background: #dc2626; }
.badge-upcoming { background: #16a34a; }
.badge-finished { background: #64748b; }
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.7; }
}
.contest-card-info { flex: 1; }
.contest-card-title {
  font-size: 0.9rem;
  font-weight: bold;
  margin-bottom: 0.2rem;
}
.contest-card-meta {
  font-family: 'Silkscreen', cursive;
  font-size: 0.65rem;
  color: var(--nav-link-color);
  letter-spacing: 0.04em;
}
.contest-card-date {
  font-family: 'Silkscreen', cursive;
  font-size: 0.65rem;
  color: var(--nav-link-color);
  flex-shrink: 0;
}
/* ページネーション */
.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
  margin-top: 1.0rem;
  padding-bottom: 1.0rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}
.page-btn {
  background-color: var(--bg-color);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  padding: 0.25rem 0.75rem;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
}
.page-btn:hover:not(:disabled) {
  border-color: var(--text-color);
  color: var(--bg-color);
  background-color: var(--text-color);
}
.page-btn:disabled {
  opacity: 0.2;
  cursor: not-allowed;
}
.page-info {
  font-size: 0.875rem;
  color: var(--nav-link-color);
}
/* ======================================
   詳細ページ (共通レイアウト)
====================================== */
.detail-page {
  max-width: 1152px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
/* コンテスト情報バー */
.contest-header {
  padding: 1.25rem 1.5rem;
}
.contest-header-top {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.6rem;
  flex-wrap: wrap;
}
.type-badge {
  font-family: 'Silkscreen', cursive;
  font-size: 0.6rem;
  padding: 0.2rem 0.6rem;
  border: 1px solid var(--border-color);
  color: var(--nav-link-color);
  letter-spacing: 0.05em;
}
.status-badge {
  font-family: 'Silkscreen', cursive;
  font-size: 0.6rem;
  padding: 0.2rem 0.6rem;
  color: #fff;
  letter-spacing: 0.05em;
}
.rated-badge {
  font-family: 'Silkscreen', cursive;
  font-size: 0.6rem;
  padding: 0.2rem 0.6rem;
  border: 1px solid var(--nav-link-color);
  color: var(--nav-link-color);
  letter-spacing: 0.05em;
}
.contest-title-large {
  font-size: 1.1rem;
  font-weight: 900;
  margin: 0 0 0.4rem 0;
}
.contest-header-meta {
  font-family: 'Silkscreen', cursive;
  font-size: 0.65rem;
  color: var(--nav-link-color);
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.timer-display {
  font-family: 'Silkscreen', cursive;
  font-size: 1.4rem;
  font-weight: bold;
  letter-spacing: 0.08em;
  margin-left: auto;
}
.timer-display.urgent { color: #dc2626; animation: blink 1s infinite; }
/* ======================================
   UPCOMING カウントダウン
====================================== */
.upcoming-overlay {
  text-align: center;
  padding: 3rem 1.5rem;
  border: 1px dashed var(--border-color);
}
.upcoming-label {
  font-family: 'Silkscreen', cursive;
  font-size: 0.7rem;
  color: var(--nav-link-color);
  letter-spacing: 0.15em;
  margin: 0 0 1rem 0;
}
.countdown-display {
  font-family: 'Silkscreen', cursive;
  font-size: 3rem;
  font-weight: bold;
  letter-spacing: 0.12em;
  margin: 0 0 0.5rem 0;
}
@media (min-width: 768px) {
  .countdown-display { font-size: 4rem; }
}
.countdown-sub {
  font-family: 'Silkscreen', cursive;
  font-size: 0.6rem;
  color: var(--nav-link-color);
  letter-spacing: 0.2em;
  margin: 0 0 2rem 0;
}
.upcoming-note {
  font-size: 0.85rem;
  color: var(--nav-link-color);
  margin: 0;
}
/* ======================================
   問題エリア (タブ + パネル)
====================================== */
.detail-main {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 1.5rem;
  align-items: start;
}
@media (max-width: 767px) {
  .detail-main { grid-template-columns: 1fr; }
}
/* 左: 問題タブ */
.problem-tabs {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
@media (max-width: 767px) {
  .problem-tabs {
    flex-direction: row;
    overflow-x: auto;
    gap: 0.4rem;
    padding-bottom: 0.25rem;
  }
}
.problem-tab {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--nav-link-color);
  cursor: pointer;
  font-family: 'Silkscreen', cursive;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  transition: all 0.15s;
  white-space: nowrap;
  flex-shrink: 0;
}
.problem-tab:hover           { border-color: var(--text-color); color: var(--text-color); }
.problem-tab.active          { background: var(--btn-bg); color: var(--btn-text); border-color: var(--btn-bg); }
.problem-tab.ac              { border-color: #16a34a; color: #16a34a; }
.problem-tab.wa              { border-color: #dc2626; color: #dc2626; }
.problem-tab.active.ac       { background: #16a34a; color: #fff; border-color: #16a34a; }
.problem-tab.active.wa       { background: #dc2626; color: #fff; border-color: #dc2626; }
.tab-label  { font-size: 0.85rem; }
.tab-pts    { font-size: 0.6rem; opacity: 0.7; }
.tab-status { font-size: 0.65rem; margin-left: 0.25rem; }
/* 右: 問題パネル */
.problem-panel {
  border: 1px solid var(--border-color);
  background: var(--header-bg);
}
.problem-panel-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
}
.problem-label-badge {
  font-family: 'Silkscreen', cursive;
  font-size: 0.75rem;
  font-weight: bold;
  background: var(--btn-bg);
  color: var(--btn-text);
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.problem-pts-label {
  font-family: 'Silkscreen', cursive;
  font-size: 0.7rem;
  color: var(--nav-link-color);
}
.problem-body { padding: 1.5rem 1.25rem; }
.problem-statement {
  font-size: 0.9rem;
  line-height: 1.9;
  margin: 0 0 1rem 0;
  border-left: 3px solid var(--border-color);
  padding-left: 1rem;
}
.problem-formula {
  margin: 1.5rem 0;
  padding: 1.25rem;
  border: 1px dashed var(--border-color);
  background: var(--bg-color);
  overflow-x: auto;
  text-align: center;
  font-size: 1.1rem;
}
/* 提出履歴 */
.history-area {
  padding: 0.75rem 1.25rem;
  border-top: 1px solid var(--border-color);
}
.history-title {
  font-family: 'Silkscreen', cursive;
  font-size: 0.65rem;
  color: var(--nav-link-color);
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}
.history-list {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.history-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: 'Silkscreen', cursive;
  font-size: 0.65rem;
}
.history-time { color: var(--nav-link-color); width: 3.5rem; flex-shrink: 0; }
.history-ac   { color: #16a34a; width: 2rem; flex-shrink: 0; }
.history-wa   { color: #dc2626; width: 2rem; flex-shrink: 0; }
.history-val  { color: var(--text-color); }
/* 解答フォーム */
.submit-area {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border-color);
}
.submit-area-label {
  font-family: 'Silkscreen', cursive;
  font-size: 0.65rem;
  color: var(--nav-link-color);
  letter-spacing: 0.05em;
  margin-bottom: 0.6rem;
}
.submit-row {
  display: flex;
  gap: 0.75rem;
  align-items: stretch;
}
.answer-input {
  flex: 1;
  max-width: 200px;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  background: var(--bg-color);
  color: var(--text-color);
  font-family: 'Silkscreen', cursive;
  font-size: 1rem;
  letter-spacing: 0.05em;
  transition: border-color 0.15s;
  /* スピンボタンを消す */
  -moz-appearance: textfield;
  appearance: textfield;
}
.answer-input::-webkit-outer-spin-button,
.answer-input::-webkit-inner-spin-button { -webkit-appearance: none; }
.answer-input:focus   { outline: none; border-color: var(--text-color); }
.answer-input:disabled { opacity: 0.4; cursor: not-allowed; }
.submit-btn {
  padding: 0.75rem 1.5rem;
  background: var(--btn-bg);
  color: var(--btn-text);
  border: none;
  font-family: 'Silkscreen', cursive;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: opacity 0.2s;
  flex-shrink: 0;
}
.submit-btn:hover    { opacity: 0.8; }
.submit-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.submit-msg {
  margin-top: 0.6rem;
  font-family: 'Silkscreen', cursive;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  min-height: 1.2em;
}
.submit-msg.ac   { color: #16a34a; }
.submit-msg.wa   { color: #dc2626; }
.submit-msg.info { color: var(--nav-link-color); }
/* ログイン要求 */
.login-required {
  padding: 0.75rem 0 0 0;
  font-family: 'Silkscreen', cursive;
  font-size: 0.7rem;
  color: var(--nav-link-color);
  letter-spacing: 0.04em;
}
.login-required a { color: var(--text-color); text-decoration: underline; }
/* 終了メッセージ */
.finished-note {
  padding: 0.75rem 0 0 0;
  font-family: 'Silkscreen', cursive;
  font-size: 0.7rem;
  color: var(--nav-link-color);
  letter-spacing: 0.04em;
}
/* ======================================
   スコアボード
====================================== */

.scoreboard-heading {
  font-family: 'Silkscreen', cursive;
  font-size: 1rem;
  letter-spacing: 0.1em;
  border-bottom: 2px solid var(--text-color);
  padding-bottom: 0.5rem;
  margin: 0 0 1rem 0;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.live-dot {
  width: 8px;
  height: 8px;
  background: #dc2626;
  border-radius: 50%;
  animation: blink 1s infinite;
  flex-shrink: 0;
}
.scoreboard-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
}
.scoreboard-table th {
  font-family: 'Silkscreen', cursive;
  font-size: 0.6rem;
  color: var(--nav-link-color);
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border-color);
  text-align: left;
  white-space: nowrap;
  letter-spacing: 0.05em;
}
.scoreboard-table td {
  padding: 0.6rem 0.75rem;
  border-bottom: 1px dashed var(--border-color);
  white-space: nowrap;
}
.scoreboard-table tr:last-child td { border-bottom: none; }
.scoreboard-table tr.me td { background: rgba(22, 163, 74, 0.07); }
.td-rank         { font-family: 'Silkscreen', cursive; font-size: 0.7rem; color: var(--nav-link-color); }
.td-rank.rank-1  { color: #f59e0b; }
.td-rank.rank-2  { color: #94a3b8; }
.td-rank.rank-3  { color: #b45309; }
.td-user         { font-weight: bold; }
.td-solved       { font-family: 'Silkscreen', cursive; font-size: 0.7rem; letter-spacing: 0.04em; }
.td-solved .s-ac { color: #16a34a; }
.td-score        { font-family: 'Silkscreen', cursive; font-weight: bold; }
.td-time         { font-family: 'Silkscreen', cursive; font-size: 0.7rem; color: var(--nav-link-color); }
.td-perf         { font-family: 'Silkscreen', cursive; font-size: 0.7rem; }