/* ===== テーマ変数 ===== */
:root {
  --bg: #f5f6fa;
  --surface: #ffffff;
  --surface-alt: #f8fafc;
  --text-primary: #333;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --link-color: #2563eb;
  --btn-bg: #fff;
  --btn-text: #333;
  --btn-border: #ccc;
  --btn-hover: #f0f0f0;
  --btn-primary-bg: #2563eb;
  --btn-primary-hover: #1d4ed8;
  --input-bg: #fff;
  --input-border: #ccc;
  --header-title: #1e3a5f;
  --filter-bg: #e5e7eb;
  --filter-text: #374151;
  --filter-hover: #d1d5db;
  --shadow: rgba(0,0,0,0.08);
  --msg-user-bg: #fff;
  --msg-admin-bg: #fefce8;
  --alert-success-bg: #d1fae5;
  --alert-success-border: #6ee7b7;
  --alert-success-text: #065f46;
  --alert-error-bg: #fee2e2;
  --alert-error-border: #fca5a5;
  --alert-error-text: #991b1b;
  --alert-info-bg: #dbeafe;
  --alert-info-border: #93c5fd;
  --alert-info-text: #1e40af;
  --qa-answer-bg: #f0fdf4;
  --qa-body-q: #555;
  --tag-bg: #e5e7eb;
  --tag-text: #374151;
  --tag-hover: #d1d5db;
  --tag-reset-bg: #fee2e2;
  --tag-reset-text: #991b1b;
  --card-register-bg: #eff6ff;
  --card-register-border: #1a56db;
  --card-qa-bg: #f0fdf4;
  --card-qa-border: #0f6e56;
  --closed-notice-bg: #f3f4f6;
  --status-open-bg: #ef4444;
  --status-progress-bg: #f59e0b;
  --status-progress-text: #333;
  --status-resolved-bg: #10b981;
}

body.mode-dark {
  --bg: #111827;
  --surface: #1f2937;
  --surface-alt: #1e293b;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border: #374151;
  --border-light: #1e293b;
  --link-color: #60a5fa;
  --btn-bg: #374151;
  --btn-text: #e5e7eb;
  --btn-border: #4b5563;
  --btn-hover: #4b5563;
  --btn-primary-bg: #3b82f6;
  --btn-primary-hover: #2563eb;
  --input-bg: #1f2937;
  --input-border: #4b5563;
  --header-title: #93c5fd;
  --filter-bg: #374151;
  --filter-text: #d1d5db;
  --filter-hover: #4b5563;
  --shadow: rgba(0,0,0,0.3);
  --msg-user-bg: #1f2937;
  --msg-admin-bg: #292524;
  --alert-success-bg: #052e16;
  --alert-success-border: #166534;
  --alert-success-text: #86efac;
  --alert-error-bg: #450a0a;
  --alert-error-border: #991b1b;
  --alert-error-text: #fca5a5;
  --alert-info-bg: #172554;
  --alert-info-border: #1e40af;
  --alert-info-text: #93c5fd;
  --qa-answer-bg: #052e16;
  --qa-body-q: #9ca3af;
  --tag-bg: #374151;
  --tag-text: #d1d5db;
  --tag-hover: #4b5563;
  --tag-reset-bg: #450a0a;
  --tag-reset-text: #fca5a5;
  --card-register-bg: #1e3a5f;
  --card-register-border: #3b82f6;
  --card-qa-bg: #052e16;
  --card-qa-border: #22c55e;
  --closed-notice-bg: #1f2937;
  --status-open-bg: #dc2626;
  --status-progress-bg: #d97706;
  --status-progress-text: #fef3c7;
  --status-resolved-bg: #059669;
}

/* ===== リセット・ベース ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: 'Hiragino Kaku Gothic ProN', 'Yu Gothic', 'Meiryo', sans-serif;
    background: var(--bg);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 1.07em;
}
a { color: var(--link-color); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ===== コンテナ ===== */
.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 20px;
}

/* ===== ヘッダー ===== */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
    border-bottom: 2px solid var(--btn-primary-bg);
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
}
.header h1 { font-size: 1.4em; color: var(--header-title); }
.header h1 a { color: inherit; }
.header-right { display: flex; align-items: center; gap: 12px; font-size: 14px; }
.header-sub { color: var(--text-secondary); font-size: 14px; }

/* ===== ボタン ===== */
.btn {
    display: inline-block;
    padding: 8px 18px;
    border: 1px solid var(--btn-border);
    border-radius: 4px;
    background: var(--btn-bg);
    color: var(--btn-text);
    font-size: 14px;
    cursor: pointer;
    text-decoration: none;
}
.btn:hover { background: var(--btn-hover); text-decoration: none; }
.btn-primary { background: var(--btn-primary-bg); color: #fff; border-color: var(--btn-primary-bg); }
.btn-primary:hover { background: var(--btn-primary-hover); }
.btn-secondary { background: #059669; color: #fff; border-color: #059669; }
.btn-secondary:hover { background: #047857; }
.btn-sm { padding: 4px 12px; font-size: 0.93em; }

/* ===== フォーム ===== */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-weight: bold; margin-bottom: 4px; font-size: 14px; color: var(--text-primary); }
.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--input-border);
    border-radius: 4px;
    font-size: 1.07em;
    font-family: inherit;
    background: var(--input-bg);
    color: var(--text-primary);
}
.form-group textarea { resize: vertical; }
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus { outline: none; border-color: var(--btn-primary-bg); box-shadow: 0 0 0 2px rgba(37,99,235,0.2); }
.form-actions { display: flex; gap: 8px; margin-top: 16px; flex-wrap: wrap; }

/* ===== アラート ===== */
.alert { padding: 14px 18px; border-radius: 4px; margin-bottom: 20px; }
.alert p { margin: 4px 0; }
.alert-success { background: var(--alert-success-bg); border: 1px solid var(--alert-success-border); color: var(--alert-success-text); }
.alert-error { background: var(--alert-error-bg); border: 1px solid var(--alert-error-border); color: var(--alert-error-text); }
.alert-info { background: var(--alert-info-bg); border: 1px solid var(--alert-info-border); color: var(--alert-info-text); }

/* ===== フィルターナビ ===== */
.filter-nav { display: flex; gap: 4px; margin-bottom: 20px; flex-wrap: wrap; }
.filter-nav a {
    padding: 6px 14px;
    border-radius: 20px;
    background: var(--filter-bg);
    color: var(--filter-text);
    font-size: 0.93em;
}
.filter-nav a:hover { background: var(--filter-hover); text-decoration: none; }
.filter-nav a.active { background: var(--btn-primary-bg); color: #fff; }

/* ===== ステータスバッジ ===== */
.status-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: bold;
    color: #fff;
}
.status-open { background: var(--status-open-bg); }
.status-progress { background: var(--status-progress-bg); color: var(--status-progress-text); }
.status-resolved { background: var(--status-resolved-bg); }

/* ===== テーブル ===== */
.ticket-table { width: 100%; border-collapse: collapse; background: var(--surface); border-radius: 6px; overflow: hidden; box-shadow: 0 1px 3px var(--shadow); }
.ticket-table th { background: var(--surface-alt); text-align: left; padding: 10px 12px; font-size: 0.93em; color: var(--text-secondary); border-bottom: 2px solid var(--border); }
.ticket-table td { padding: 10px 12px; border-bottom: 1px solid var(--border-light); font-size: 14px; }
.ticket-table tr:hover { background: var(--surface-alt); }
.ticket-table a { font-weight: 500; }

/* ===== チケット詳細 ===== */
.ticket-header { margin-bottom: 20px; }
.ticket-header h2 { margin-bottom: 8px; }
.ticket-meta { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; font-size: 0.93em; color: var(--text-secondary); }
.ticket-no { font-family: monospace; font-weight: bold; }

/* ===== メッセージ ===== */
.messages { margin: 20px 0; }
.message { padding: 14px 18px; margin-bottom: 12px; border-radius: 6px; border: 1px solid var(--border); }
.message-user { background: var(--msg-user-bg); border-left: 4px solid var(--btn-primary-bg); }
.message-admin { background: var(--msg-admin-bg); border-left: 4px solid #f59e0b; }
.message-header { display: flex; justify-content: space-between; margin-bottom: 8px; font-size: 0.93em; }
.message-header strong { color: var(--header-title); }
.message-date { color: var(--text-muted); }
.message-body { white-space: pre-wrap; word-wrap: break-word; }

/* ===== 返信フォーム ===== */
.reply-form { background: var(--surface); padding: 20px; border-radius: 6px; border: 1px solid var(--border); margin: 20px 0; }
.closed-notice { text-align: center; color: var(--text-secondary); padding: 20px; background: var(--closed-notice-bg); border-radius: 6px; }

/* ===== 管理者アクション ===== */
.admin-actions { display: flex; gap: 12px; align-items: center; margin-bottom: 20px; padding: 12px 16px; background: var(--surface-alt); border-radius: 6px; flex-wrap: wrap; }
.inline-form { display: flex; gap: 8px; align-items: center; }
.inline-form select { padding: 4px 8px; border-radius: 4px; border: 1px solid var(--input-border); background: var(--input-bg); color: var(--text-primary); }

/* ===== 統計カード ===== */
.stats-row { display: flex; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.stat-card { flex: 1; min-width: 120px; background: var(--surface); padding: 16px; border-radius: 8px; text-align: center; box-shadow: 0 1px 3px var(--shadow); }
.stat-number { font-size: 2em; font-weight: bold; color: var(--btn-primary-bg); }
.stat-label { font-size: 0.93em; color: var(--text-secondary); margin-top: 4px; }

/* ===== QAページ ===== */
.search-form { margin-bottom: 20px; }
.search-box { display: flex; gap: 8px; }
.search-box input { flex: 1; padding: 10px 14px; border: 1px solid var(--input-border); border-radius: 4px; font-size: 1.07em; background: var(--input-bg); color: var(--text-primary); }

.tag-list { margin-bottom: 20px; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.tag-label { font-size: 0.93em; color: var(--text-secondary); margin-right: 4px; }
.tag { display: inline-block; padding: 3px 10px; background: var(--tag-bg); border-radius: 12px; font-size: 12px; color: var(--tag-text); }
.tag:hover { background: var(--tag-hover); text-decoration: none; }
.tag-active { background: var(--btn-primary-bg); color: #fff; }
.tag-reset { background: var(--tag-reset-bg); color: var(--tag-reset-text); }

.qa-list { margin: 20px 0; }
.qa-item { background: var(--surface); padding: 20px 24px; margin-bottom: 16px; border-radius: 8px; box-shadow: 0 1px 3px var(--shadow); }
.qa-question { font-size: 1.1em; margin-bottom: 8px; display: flex; align-items: flex-start; gap: 10px; }
.qa-icon { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; border-radius: 50%; background: var(--btn-primary-bg); color: #fff; font-weight: bold; font-size: 14px; flex-shrink: 0; }
.qa-icon-a { background: #059669; }
.qa-body-q { color: var(--qa-body-q); margin-bottom: 14px; padding-left: 38px; }
.qa-answer { display: flex; gap: 10px; align-items: flex-start; background: var(--qa-answer-bg); padding: 14px; border-radius: 6px; }
.qa-body-a { flex: 1; }
.qa-tags { margin-top: 10px; padding-left: 38px; }
.qa-date { margin-top: 8px; font-size: 12px; color: var(--text-muted); padding-left: 38px; }

/* ===== チケット参照（QA編集画面） ===== */
.ticket-reference { margin-bottom: 16px; }
.ticket-reference summary { cursor: pointer; color: var(--link-color); font-size: 14px; }
.ticket-messages { background: var(--surface-alt); padding: 12px; border-radius: 4px; font-size: 0.93em; white-space: pre-wrap; max-height: 300px; overflow-y: auto; }

/* ===== フッター ===== */
.footer { margin-top: 30px; padding-top: 16px; border-top: 1px solid var(--border); text-align: center; font-size: 14px; color: var(--text-secondary); }
.qa-footer { background: var(--surface-alt); padding: 20px; border-radius: 6px; border-top: none; }
.qa-footer a { font-weight: bold; }

.empty-message { text-align: center; padding: 40px 20px; color: var(--text-muted); }
.text-center { text-align: center; margin-top: 16px; }

/* ===== テーマトグル ===== */
.theme-toggle {
  background: none; border: none; font-size: 20px;
  cursor: pointer; padding: 0 8px; line-height: 1;
}

/* ===== ログインページ カードリンク ===== */
.login-sub { font-size: 0.93em; color: var(--text-secondary); margin: 2px 0 20px; }

.portal-link-card {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none;
  border-radius: 8px; padding: 10px 14px;
  margin-top: 10px;
  transition: opacity 0.2s;
}
.portal-link-card:hover { opacity: 0.85; text-decoration: none; }

.portal-link-register {
  background: var(--card-register-bg);
  border: 1.5px solid var(--card-register-border);
}
.portal-link-register strong { color: var(--card-register-border); }
.portal-link-register .portal-link-arrow { color: var(--card-register-border); }

.portal-link-qa {
  background: var(--card-qa-bg);
  border: 1.5px solid var(--card-qa-border);
}
.portal-link-qa strong { color: var(--card-qa-border); }
.portal-link-qa .portal-link-arrow { color: var(--card-qa-border); }

.portal-link-text { display: flex; flex-direction: column; flex: 1; }
.portal-link-text strong { font-size: 0.93em; font-weight: 600; }
.portal-link-text small { font-size: 11px; color: var(--text-secondary); margin-top: 2px; }
.portal-link-icon { font-size: 16px; }
.portal-link-arrow { font-size: 14px; margin-left: auto; }

/* ===== ポータルヘッダー ===== */
.portal-header { padding: 14px 16px; border-bottom: 2px solid var(--btn-primary-bg); margin-bottom: 24px; }
.portal-header-top {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 10px;
}
.portal-title { font-size: 18px; font-weight: 700; color: var(--header-title); }
.portal-title a { color: inherit; text-decoration: none; }
.portal-title a:hover { text-decoration: none; }
.portal-header-links { display: flex; gap: 16px; font-size: 14px; align-items: center; }
.portal-header-links a { color: var(--link-color); text-decoration: none; }
.portal-header-bottom {
  display: flex; justify-content: space-between; align-items: center;
}
.portal-user { font-size: 0.93em; color: var(--text-secondary); }
.btn-new-ticket {
  background: var(--btn-primary-bg); color: #fff; border: none;
  border-radius: 8px; padding: 10px 16px;
  font-size: 14px; font-weight: 600;
  text-decoration: none; white-space: nowrap;
}
.btn-new-ticket:hover { background: var(--btn-primary-hover); text-decoration: none; }

/* ===== フィルター行 ===== */
.filter-row {
  display: flex; align-items: center; justify-content: space-between;
  margin: 14px 0;
}
.filter-buttons { display: flex; gap: 8px; flex-wrap: wrap; }
.filter-btn {
  padding: 6px 14px; border-radius: 20px; background: var(--filter-bg);
  color: var(--filter-text); font-size: 0.93em; text-decoration: none;
}
.filter-btn:hover { background: var(--filter-hover); text-decoration: none; }
.filter-btn.active { background: var(--btn-primary-bg); color: #fff; }
.btn-mypage {
  text-decoration: none;
  font-size: 0.93em;
  color: var(--card-mypage-border);
  border: 1.5px solid var(--card-mypage-border);
  border-radius: 20px;
  padding: 6px 14px;
  white-space: nowrap;
  margin-left: 12px;
}
.btn-mypage:hover { background: var(--card-mypage-bg); text-decoration: none; }

/* ===== 再オープンボタン ===== */
.btn-reopen {
  font-size: 12px;
  color: #b45309;
  background: #fffbeb;
  border: 1.5px solid #b45309;
  border-radius: 20px;
  padding: 4px 12px;
  cursor: pointer;
}
body.mode-dark .btn-reopen {
  color: #fbbf24;
  background: #422006;
  border-color: #fbbf24;
}
.btn-reopen:hover { background: #fef3c7; }
body.mode-dark .btn-reopen:hover { background: #78350f; }

/* ===== レスポンシブ ===== */
@media (max-width: 640px) {
    .header { flex-direction: column; align-items: flex-start; }
    .stats-row { flex-direction: column; }
    .ticket-table { font-size: 0.93em; }
    .ticket-table th:nth-child(5),
    .ticket-table td:nth-child(5),
    .ticket-table th:nth-child(6),
    .ticket-table td:nth-child(6) { display: none; }
    .admin-actions { flex-direction: column; align-items: flex-start; }
}

/* ===== チケット番号・テーブルスクロール ===== */
.ticket-number { white-space: nowrap; font-size: 0.93em; }
.ticket-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.ticket-subject { white-space: nowrap; }
.status-badge { white-space: nowrap; display: inline-block; }

/* ===== ガイドページ ===== */
.guide-step {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--card-bg);
  border: 0.5px solid var(--border-color);
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 12px;
}
.guide-step-num {
  min-width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #E6F1FB;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 500;
  color: #0C447C;
}
.guide-step-title {
  font-size: 1.07em;
  font-weight: 500;
  margin: 0 0 4px;
  color: var(--color-text);
}
.guide-step-desc {
  font-size: 0.93em;
  color: var(--color-muted);
  margin: 0;
  line-height: 1.6;
}
.guide-qa-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--card-bg);
  border: 0.5px solid var(--border-color);
  border-radius: 12px;
  padding: 14px 16px;
  margin-top: 4px;
}
.badge-preparing {
  white-space: nowrap;
  font-size: 12px;
  font-weight: 500;
  color: #A32D2D;
  background: #FCEBEB;
  padding: 4px 10px;
  border-radius: 6px;
  border: 0.5px solid #F09595;
}

.portal-header-top > a { font-size: 15px !important; font-weight: 500 !important; }

/* ===== フォントサイズ切替 ===== */
body.fs-normal { font-size: 14px; }
body.fs-large  { font-size: 17px; }
body.fs-xl     { font-size: 20px; }

#fsSizeBtn {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 0.5px solid var(--border-color);
  background: var(--card-bg);
  color: var(--color-text);
  cursor: pointer;
  font-weight: 500;
  font-size: 16px;
  display: flex; align-items: center; justify-content: center;
}

/* ===== 認証ページ（ログイン・登録等） ===== */
.auth-page {
  max-width: 480px;
  margin: 0 auto;
  padding: 40px 24px;
}
.auth-page form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px 24px;
}
.auth-page .form-group label {
  color: var(--text-primary);
}
.auth-page .form-group input {
  background: var(--input-bg);
  border-color: var(--input-border);
  color: var(--text-primary);
}

/* ===== チケット発行ボタン ===== */
.ticket-actions { margin-bottom: 1.5rem; }

/* ===== ログアウトボタン ===== */
.nav-logout { color: #f87171 !important; border: 1px solid #f87171; border-radius: 4px; padding: 2px 10px !important; }
.nav-logout:hover { background: #f87171; color: #fff !important; }

/* ===== 画像添付UI ===== */
.image-upload-area { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.btn-upload { padding: 8px 16px; border: 1px dashed #4b8af0; border-radius: 6px; background: transparent; color: #4b8af0; cursor: pointer; }
.btn-upload:hover { background: rgba(75,138,240,0.1); }
.upload-hint { font-size: 12px; color: var(--text-muted, #888); }
.preview-area { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.preview-img { width: 80px; height: 80px; object-fit: cover; border-radius: 4px; border: 1px solid var(--border); }
.ticket-images { margin-top: 1rem; }
.ticket-img { max-width: 200px; max-height: 200px; object-fit: cover; border-radius: 4px; border: 1px solid var(--border); cursor: pointer; }
.ticket-img:hover { opacity: 0.85; }

/* ===== パンくずリスト ===== */
.breadcrumb { font-size: 13px; padding: 8px 0 16px; color: var(--text-muted, #888); }
.breadcrumb a { color: var(--link-color, #58a6ff); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }

/* ===== チケッ���ツールバー ===== */
.ticket-toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; flex-wrap: wrap; gap: 8px; }
.filter-btns { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.btn-new-ticket { padding: 8px 18px; background: #059669; color: #fff; border-radius: 6px; text-decoration: none; font-size: 14px; font-weight: 500; white-space: nowrap; }
.btn-new-ticket:hover { background: #047857; text-decoration: none; }


/* ===== 掲示板カード ===== */
.board-card { border: 1px solid #7c3aed !important; background: rgba(124,58,237,0.15) !important; }
.board-card strong { color: #a78bfa !important; }
.board-card small { color: #c4b5fd !important; }
.board-card:hover { background: rgba(124,58,237,0.3) !important; }
body.mode-light .board-card { background: #f5f0ff !important; border-color: #7c3aed !important; }
body.mode-light .board-card strong { color: #5b21b6 !important; }
body.mode-light .board-card small { color: #7c3aed !important; }