:root {
    --bg: #060b19;
    --card-bg: rgba(16, 26, 51, 0.65);
    --text: #eaf1ff;
    --muted: #93a8d6;
    --border: rgba(0, 212, 255, 0.25);
    --primary: #0a5fd9;
    --primary-hover: #0d7ae0;
    --primary-soft: rgba(0, 170, 255, 0.16);
    --link: #7fc4ff;
    --danger: #ff6b85;
    --danger-soft: rgba(255, 90, 120, 0.15);
    --good: #4fe0a5;
    --good-soft: rgba(60, 220, 150, 0.15);
    --warn: #ffc44d;
    --warn-soft: rgba(255, 171, 0, 0.15);
    --radius-lg: 16px;
    --radius-md: 10px;
    --shadow-card: 0 15px 30px rgba(0,0,0,0.55), 0 0 16px rgba(0,170,255,0.12);
    --shadow-card-hover: 0 18px 36px rgba(0,0,0,0.6), 0 0 24px rgba(0,170,255,0.22);
}

* { box-sizing: border-box; }

html, body {
    max-width: 100%;
    overflow-x: hidden;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Hiragino Sans, sans-serif;
    background-color: var(--bg);
    background-image:
        linear-gradient(to bottom, rgba(6, 11, 25, 0.4) 0%, rgba(6, 11, 25, 0.9) 60%),
        linear-gradient(rgba(0, 180, 255, 0.16) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 180, 255, 0.16) 1px, transparent 1px);
    background-size: 100% 100%, 30px 30px, 30px 30px;
    background-attachment: fixed;
    color: var(--text);
    -webkit-font-smoothing: antialiased;
}

@media (max-width: 600px) {
    input, select, textarea { font-size: 16px; }
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary) !important;
    box-shadow: 0 0 0 3px var(--primary-soft);
}

.input-group { display: block; margin-bottom: 16px; }
.input-group label { display: block; margin-bottom: 6px; font-size: 13px; color: var(--muted); font-weight: 500; }
.input-group input, .input-group select {
    display: block;
    width: 100%;
    padding: 11px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 15px;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
/* select は input と違いブラウザ既定の背景・文字色を引き継がないと
   ダークテーマ内で「白い小さな四角」のように浮いて見えるため明示指定する */
.input-group select {
    background: rgba(8, 15, 33, 0.6);
    color: var(--text);
}
.input-group select option { background: #0d1226; color: var(--text); }

.btn {
    display: inline-block;
    border: none;
    border-radius: var(--radius-md);
    padding: 11px 20px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease, transform 0.1s ease, box-shadow 0.15s ease;
}
.btn:active { transform: translateY(1px); }

.btn-primary { background: var(--primary); color: white; width: 100%; box-shadow: 0 1px 2px rgba(0,140,255,0.3), 0 4px 14px rgba(0,140,255,0.25); }
.btn-primary:hover { background: var(--primary-hover); box-shadow: 0 2px 4px rgba(0,170,255,0.35), 0 6px 20px rgba(0,170,255,0.35); }
.btn-secondary { background: var(--card-bg); color: var(--muted); border: 1px solid var(--border); }
.btn-secondary:hover { background: rgba(0, 212, 255, 0.12); color: var(--text); border-color: var(--primary-hover); }

.review-actions { display: flex; gap: 10px; }
.review-actions .btn-primary { width: auto; flex: 1; }

.error { color: var(--danger); font-size: 13px; margin-bottom: 12px; }
.success-banner { color: var(--good); background: var(--good-soft); border: 1px solid rgba(79,224,165,0.35); border-radius: var(--radius-md); padding: 10px 14px; font-size: 13px; font-weight: 600; }

.passkey-divider {
    text-align: center;
    color: var(--muted);
    font-size: 12px;
    margin: 20px 0;
    position: relative;
}
.passkey-divider::before, .passkey-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 40%;
    border-top: 1px solid var(--border);
}
.passkey-divider::before { left: 0; }
.passkey-divider::after { right: 0; }

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: rgba(10, 16, 34, 0.75);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}

.topbar h1 { font-size: 18px; font-weight: 700; letter-spacing: -0.01em; margin: 0; }

@media (max-width: 420px) {
    .topbar { flex-wrap: wrap; gap: 12px; padding: 22px 18px; }
    .topbar h1 { font-size: 18px; }
    .logout-link { padding: 12px 20px; font-size: 15px; }
}
.logout-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid transparent;
    padding: 9px 16px;
    border-radius: 999px;
    transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
    white-space: nowrap;
}
.logout-link:hover { background: var(--primary-soft); color: #7fc4ff; border-color: var(--border); text-decoration: none; }
.logout-link svg { flex-shrink: 0; display: block; }

.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.upload-card, .summary-card, .table-card, .chart-card {
    background: var(--card-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: var(--radius-lg);
    padding: 22px;
    box-shadow: var(--shadow-card);
    border: 1px solid var(--border);
    transition: box-shadow 0.2s ease;
}

.upload-card h2, .table-card h2, .chart-card h2 {
    margin-top: 0;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: -0.01em;
    display: flex;
    align-items: center;
    gap: 8px;
}
.hint { color: var(--muted); font-size: 13px; line-height: 1.6; }
.reveal-email { cursor: pointer; color: var(--muted); border-bottom: 1px dashed var(--border); user-select: none; }
.reveal-email:hover { color: var(--text); }

#upload-btn { margin-left: 8px; }
#upload-status { margin-top: 12px; font-size: 13px; color: var(--muted); }

.total-amount {
    text-align: center;
    margin-bottom: 20px;
}
.total-amount .label { display: block; font-size: 13px; color: var(--muted); font-weight: 500; letter-spacing: 0.02em; }
.total-amount .value { display: block; font-size: 36px; font-weight: 800; letter-spacing: -0.02em; margin-top: 4px; }
.total-amount .diff {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    margin-top: 8px;
    padding: 3px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--muted);
}
.total-amount .diff-up { color: var(--good); background: var(--good-soft); }
.total-amount .diff-down { color: var(--danger); background: var(--danger-soft); }

#category-chart, #fx-chart, #total-trend-chart { max-height: 280px; }

.doughnut-chart-wrap {
    max-width: 200px;
    margin: 4px auto 16px;
    aspect-ratio: 1 / 1;
}
.doughnut-legend {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    font-size: 13px;
    color: var(--muted);
}
.doughnut-legend-item { display: flex; align-items: center; gap: 6px; }
.doughnut-legend-item strong { color: var(--text); font-variant-numeric: tabular-nums; }
.doughnut-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }

/* 資産推移シミュレーターのスライダー */
.sim-controls { display: flex; flex-direction: column; gap: 20px; margin-bottom: 18px; }
.sim-control label {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 8px;
    font-size: 13px;
    color: var(--muted);
    margin-bottom: 8px;
}
.sim-control-value { color: var(--text); font-weight: 700; font-variant-numeric: tabular-nums; white-space: nowrap; }
.sim-control input[type="range"] {
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.12);
    outline: none;
    cursor: pointer;
}
.sim-control input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 2px 8px rgba(0, 140, 255, 0.5);
    cursor: pointer;
    border: 2px solid rgba(255, 255, 255, 0.2);
}
.sim-control input[type="range"]::-moz-range-thumb {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--primary);
    box-shadow: 0 2px 8px rgba(0, 140, 255, 0.5);
    cursor: pointer;
    border: 2px solid rgba(255, 255, 255, 0.2);
}
.sim-highlight {
    text-align: center;
    font-size: 17px;
    font-weight: 800;
    color: var(--good);
    background: var(--good-soft);
    padding: 14px;
    border-radius: var(--radius-md);
    margin-top: 18px;
}
@media (max-width: 480px) {
    .sim-control label { flex-direction: column; align-items: flex-start; gap: 2px; }
    .sim-highlight { font-size: 15px; }
}

/* 資産・家計分析カード内の折りたたみ(将来シミュレーション) */
.sim-accordion {
    margin-top: 18px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}
.sim-accordion summary {
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: 14px;
    font-weight: 600;
    color: var(--link);
    user-select: none;
}
.sim-accordion summary::-webkit-details-marker { display: none; }
.sim-accordion summary::before {
    content: '▶';
    display: inline-block;
    font-size: 10px;
    transition: transform 0.15s ease;
}
.sim-accordion[open] summary::before { transform: rotate(90deg); }
.sim-accordion-body { margin-top: 18px; }

/* 収支サマリータブ: 収入 vs 支出の比較バー */
.income-expense-bar-wrap { display: flex; flex-direction: column; gap: 14px; margin-top: 20px; }
.income-expense-bar-row { display: flex; align-items: center; gap: 12px; }
.income-expense-bar-label { flex: 0 0 40px; font-size: 13px; color: var(--muted); }
.income-expense-bar-track {
    flex: 1 1 auto;
    height: 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    overflow: hidden;
}
.income-expense-bar-fill { height: 100%; border-radius: 999px; transition: width 0.3s ease; }
.income-expense-bar-income { background: var(--good); }
.income-expense-bar-expense { background: var(--danger); }
.income-expense-bar-value {
    flex: 0 0 auto;
    min-width: 90px;
    text-align: right;
    font-size: 13px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}
@media (max-width: 420px) {
    .income-expense-bar-value { min-width: 72px; font-size: 12px; }
}

.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
/* table自体にmin-widthを持たせて内容に応じて広がるようにし、.table-scroll側の
   overflow-xで横スクロールさせる(列を無理やり100%幅に収めようとすると、
   「支払い元」列などのテキストが「楽\n天\nカ\nー\nド」のように1文字ずつ
   縦に潰れてしまう不具合につながる)。th/tdは全列nowrapにして折り返しを防ぐ。 */
table { width: 100%; min-width: 640px; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid var(--border); white-space: nowrap; }
td.amount { text-align: right; font-variant-numeric: tabular-nums; }

/* スマホ幅では横スクロールの表ではなく、行ごとに「利用先+金額」を1行目、
   残りの項目(日付・カテゴリ・支払い元・種別)を小さい文字で2行目にまとめた
   コンパクトなカード風レイアウトに切り替える。 */
@media (max-width: 600px) {
    .expense-table-card, .expense-table-all { min-width: 0; }
    .expense-table-card thead, .expense-table-all thead { display: none; }
    .expense-table-card, .expense-table-card tbody,
    .expense-table-all, .expense-table-all tbody { display: block; width: 100%; }
    .expense-table-card tr, .expense-table-all tr {
        display: flex;
        flex-wrap: wrap;
        align-items: baseline;
        column-gap: 8px;
        row-gap: 2px;
        padding: 10px 0;
        border-bottom: 1px solid var(--border);
    }
    .expense-table-card td, .expense-table-all td {
        display: block;
        border: none;
        padding: 0;
        white-space: normal;
    }
    .expense-table-card td.e-view-description, .expense-table-all td.e-view-description {
        order: 1; flex: 1 1 auto; min-width: 0; font-weight: 700;
        overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    }
    .expense-table-card td.amount, .expense-table-all td.amount { order: 2; flex: 0 0 auto; margin-left: auto; font-weight: 700; }
    .expense-table-card td.e-view-date, .expense-table-all td.e-view-date,
    .expense-table-card td.e-view-category, .expense-table-all td.e-view-category,
    .expense-table-all td.e-view-source,
    .expense-table-card td.e-view-type, .expense-table-all td.e-view-type {
        order: 3; font-size: 12px; color: var(--muted); white-space: nowrap;
    }
    .expense-table-card td.e-view-date::after, .expense-table-all td.e-view-date::after,
    .expense-table-all td.e-view-source::after,
    .expense-table-card td.e-view-category::after, .expense-table-all td.e-view-category::after {
        content: "・"; margin: 0 1px; color: var(--muted);
    }
    .expense-table-card td.e-view-type .expense-badge, .expense-table-all td.e-view-type .expense-badge { font-size: 11px; padding: 2px 8px; }
    .expense-table-card td.e-view-actions, .expense-table-all td.e-view-actions { order: 4; flex: 0 0 100%; margin-top: 6px; }
}

.topbar nav { display: flex; gap: 8px; align-items: center; }
.logout-confirm { background: var(--danger-soft); color: var(--danger); }
.logout-confirm:hover { background: rgba(255, 90, 120, 0.25); color: var(--danger); border-color: transparent; }

.review-row {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-bottom: 16px;
    background: rgba(255, 255, 255, 0.03);
}

.review-summary {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
}
.review-icon { font-size: 28px; }
.review-summary-text { flex: 1; min-width: 0; }
.review-summary-name { font-size: 16px; font-weight: 700; }
.review-summary-meta { font-size: 12px; color: var(--muted); margin-top: 2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.review-summary-amount { font-size: 20px; font-weight: 700; color: var(--link); white-space: nowrap; }

.review-match-note {
    font-size: 13px;
    background: var(--primary-soft);
    color: #7fc4ff;
    padding: 8px 12px;
    border-radius: 8px;
    margin-bottom: 14px;
    font-weight: 500;
}

.review-fields {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 12px;
}
.review-fields .input-group-wide { grid-column: 1 / -1; }
.review-fields .input-group { margin-bottom: 0; }
.review-fields label { display: flex; align-items: baseline; gap: 4px; }
.field-note { font-size: 11px; color: var(--muted); font-weight: 400; }

.review-row select, .review-row input {
    width: 100%;
    padding: 9px 11px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    background: rgba(8, 15, 33, 0.6);
    color: var(--text);
}
.review-row select option { background: #0d1226; color: var(--text); }

@media (max-width: 480px) {
    .review-fields { grid-template-columns: 1fr; }
}

/* 支出の編集モーダル */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(4, 8, 20, 0.72);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 1000;
}
.modal-overlay[hidden] {
    display: none;
}
.modal-box {
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    background: #0d1430;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
    padding: 24px;
}
.modal-box h3 { margin: 0 0 16px; font-size: 17px; }
.modal-box select, .modal-box input {
    width: 100%;
    padding: 9px 11px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    background: rgba(8, 15, 33, 0.6);
    color: var(--text);
}
.modal-box select option { background: #0d1226; color: var(--text); }
.modal-box .input-group { margin-bottom: 0; }
.modal-box .input-group label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; }

@media (max-width: 480px) {
    .modal-box .review-fields { grid-template-columns: 1fr; }
}

/* 金融機関・カードの検索欄: フォーカス/入力した時だけ候補をドロップダウンで出す
   (全件を縦に並べたままだと対応先が増えるほど画面が縦長になってしまうため)。
   実際の位置合わせ(position:fixed の left/top/width)は common.js の
   bindSearchDropdown() が表示のたびにJSで計算して当てる。ここでは見た目
   (不透明な背景・枠線・影)と最前面に出すためのz-indexだけを担保する。
   親カード(.upload-card等)のbackdrop-filterがスタッキングコンテキストを
   作るため、表示中は候補リストをdocument.body直下へ移動させて完全に
   最前面へ逃がしている(でないと後続セクションの背後に回り込んで透けて見える)。 */
.search-dropdown-wrap { position: relative; }
.search-dropdown-list {
    z-index: 9999;
    max-height: 280px;
    overflow-y: auto;
    background: #0d1226;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: 0 12px 32px rgba(0,0,0,0.6);
    padding: 8px;
}

/* 口座管理: シンプルなクリッカブルタイル一覧 */
.account-tile-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
}

.account-tile {
    --accent-bg: var(--primary-soft);
    --accent-text: var(--primary);
    display: flex;
    flex-direction: column;
    background: var(--accent-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    padding: 20px;
    text-decoration: none;
    color: inherit;
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}
.account-tile:hover { transform: translateY(-2px); box-shadow: var(--shadow-card-hover); border-color: var(--accent-text); }

.account-tile-name { font-weight: 700; font-size: 15px; color: var(--text); }
.account-tile-divider { height: 1px; background: rgba(255,255,255,0.1); margin: 12px 0; }
.account-tile-balance { font-size: 22px; font-weight: 800; letter-spacing: -0.01em; color: var(--accent-text); }
.account-tile-balance-empty { font-size: 14px; font-weight: 500; color: var(--muted); }

/* 口座詳細ページのヒーロー(名前・現在残高) */
.account-hero {
    --accent-bg: var(--primary-soft);
    --accent-text: var(--primary);
    background: var(--accent-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    padding: 24px;
}
.account-hero-title { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.account-hero-divider { height: 1px; background: rgba(255,255,255,0.1); margin: 16px 0; }
.account-hero-balance { display: block; font-size: 30px; font-weight: 800; letter-spacing: -0.01em; color: var(--accent-text); }
.account-hero-date { display: block; font-size: 13px; color: var(--muted); margin-top: 4px; }

.account-name { font-weight: 700; font-size: 17px; }
.account-name-input { padding: 4px 8px; border: 1px solid var(--border); border-radius: 8px; font-size: 15px; background: rgba(8,15,33,0.6); color: var(--text); }
.account-type-badge {
    font-size: 11px;
    font-weight: 600;
    background: rgba(255,255,255,0.12);
    color: var(--accent-text);
    padding: 3px 9px;
    border-radius: 999px;
}

.btn-rounded { border-radius: 999px; }

.btn-link {
    background: none;
    border: none;
    color: var(--link);
    font-size: 13px;
    cursor: pointer;
    padding: 0;
    text-decoration: none;
}
.btn-link:hover { color: #a9d8ff; text-decoration: underline; }

.manual-status { font-size: 12px; color: var(--muted); }

/* 初回利用者向けの空状態(0件)の案内。控えめな.hintより目立たせ、
   「まず何をすればいいか」がひと目でわかるようにする。 */
.empty-state-notice {
    background: rgba(255, 184, 76, 0.12);
    border: 1px solid rgba(255, 184, 76, 0.35);
    border-radius: var(--radius-md);
    padding: 12px 14px;
    font-size: 13px;
    font-weight: 600;
    color: #ffcf85;
    margin-bottom: 16px;
}

/* 自動読み取りの精度についての常時案内(警告ではなく情報提供のため、
   .empty-state-noticeより落ち着いた青系のトーンにする) */
.info-notice {
    background: var(--primary-soft);
    border: 1px solid rgba(0, 170, 255, 0.3);
    border-radius: var(--radius-md);
    padding: 12px 14px;
    margin-top: 16px;
    font-size: 12px;
    color: var(--muted);
}
.info-notice-title {
    font-weight: 700;
    font-size: 13px;
    color: var(--text);
    margin-bottom: 4px;
}
.info-notice p { margin: 4px 0; }
.info-notice p:first-child { margin-top: 0; }
.info-notice p:last-child { margin-bottom: 0; }

/* アップロード完了メッセージに添える、手動修正を促す補足(取り込み結果の直下に小さく表示) */
.upload-result-note {
    display: block;
    font-size: 11px;
    color: var(--muted);
    margin-top: 2px;
}

/* 一括アップロード完了後のバナー。自動では消えず、閉じる(×)ボタンで手動で消すまで残る */
.result-banner {
    position: relative;
    background: var(--good-soft);
    border: 1px solid rgba(79, 224, 165, 0.35);
    border-radius: var(--radius-md);
    padding: 12px 34px 12px 14px;
    font-size: 13px;
    line-height: 1.6;
}
.result-banner-close {
    position: absolute;
    top: 6px;
    right: 8px;
    background: none;
    border: none;
    font-size: 18px;
    line-height: 1;
    color: var(--muted);
    cursor: pointer;
    padding: 6px;
}
.result-banner-close:hover { color: var(--text); }

.passkey-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}
.passkey-row:last-of-type { border-bottom: none; }

.back-to-top {
    position: fixed;
    right: 20px;
    bottom: 24px;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0,140,255,0.35), 0 8px 24px rgba(0,170,255,0.35);
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity 0.2s ease, transform 0.2s ease, background-color 0.15s ease;
}
.back-to-top svg { width: 22px; height: 22px; }
.back-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--primary-hover); transform: translateY(-2px); }

@media (max-width: 420px) {
    .back-to-top { width: 64px; height: 64px; right: 18px; bottom: 20px; }
    .back-to-top svg { width: 28px; height: 28px; }
}

.chart-mode-toggle {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 12px;
}
.mode-btn {
    background: none;
    border: 1px solid var(--border);
    color: var(--muted);
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 13px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.mode-btn:hover { background: rgba(0, 212, 255, 0.12); border-color: var(--primary-hover); color: var(--text); }
.mode-btn.active { background: var(--primary); color: white; border-color: var(--primary); }

.month-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 16px;
}
.month-nav-label { font-size: 16px; font-weight: 700; min-width: 8em; text-align: center; }
.month-nav-btn {
    background: none;
    border: 1px solid var(--border);
    color: var(--text);
    width: 32px;
    height: 32px;
    border-radius: 999px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    text-decoration: none;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}
.month-nav-btn:hover { background: rgba(0, 212, 255, 0.12); border-color: var(--primary-hover); }

.breakdown-list { display: flex; flex-direction: column; gap: 14px; }
.breakdown-row-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-size: 14px;
    margin-bottom: 4px;
    gap: 8px;
}
.breakdown-name { flex: 1 1 auto; min-width: 0; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.breakdown-amount { flex-shrink: 0; white-space: nowrap; font-variant-numeric: tabular-nums; }
.breakdown-pct { color: var(--muted); font-size: 12px; }
.breakdown-bar-track { background: rgba(255, 255, 255, 0.08); border-radius: 999px; height: 10px; overflow: hidden; }
.breakdown-bar { height: 100%; border-radius: 999px; }

/* 認証系ページ(ログイン・登録・パスワード関連)共通のカードレイアウト。
   背景の暗いグリッド柄は body 自体に定義済みなので、ここではカードの中央寄せだけを担う。 */
.cyber-login-bg {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    position: relative;
    overflow: hidden;
    box-sizing: border-box;
}
/* 縦に長い画面ではカードが中央にポツンと浮いて見えるため、少し上寄りに配置する */
@media (min-height: 700px) {
    .cyber-login-bg { align-items: flex-start; padding-top: 14vh; }
}
.cyber-glow {
    position: absolute;
    width: 320px;
    height: 320px;
    background: radial-gradient(circle, rgba(0, 162, 255, 0.45) 0%, rgba(6, 11, 25, 0) 70%);
    top: 25%;
    left: 50%;
    transform: translate(-50%, -50%);
    filter: blur(50px);
    pointer-events: none;
}
.cyber-login-card {
    width: 100%;
    max-width: 360px;
    background: rgba(16, 26, 51, 0.65);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 212, 255, 0.35);
    border-radius: 20px;
    padding: 32px 24px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6), 0 0 20px rgba(0, 170, 255, 0.15);
    position: relative;
    z-index: 1;
    box-sizing: border-box;
}
.cyber-login-card .brand-header { text-align: center; margin-bottom: 24px; }
.cyber-login-card .brand-icon {
    width: 72px;
    height: 72px;
    border-radius: 18px;
    box-shadow: 0 8px 20px rgba(0, 102, 255, 0.4);
    margin-bottom: 12px;
}
.cyber-login-card .brand-title {
    color: #ffffff;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 1px;
    margin: 0;
    text-shadow: 0 0 12px rgba(0, 195, 255, 0.5);
}
.cyber-login-card .form-group { margin-bottom: 16px; }
.cyber-login-card .form-group label { display: block; font-size: 13px; color: #a5c2f0; margin-bottom: 6px; }
.cyber-login-card .form-group input {
    width: 100%;
    padding: 12px 14px;
    background: rgba(8, 15, 33, 0.7);
    border: 1px solid rgba(0, 212, 255, 0.6);
    border-radius: 10px;
    color: #ffffff;
    font-size: 15px;
    box-sizing: border-box;
    outline: none;
    transition: all 0.25s ease;
}
.cyber-login-card .form-group input:focus { border-color: #00e1ff; box-shadow: 0 0 12px rgba(0, 225, 255, 0.5); }
.cyber-login-card .form-group input::placeholder { color: rgba(255, 255, 255, 0.3); }
.cyber-login-card .forgot-wrap { text-align: center; margin: 12px 0 20px; }
.cyber-login-card .forgot-link { color: #8bb7f0; font-size: 12px; text-decoration: none; }
.cyber-login-card .forgot-link:hover { text-decoration: underline; }
.cyber-login-card .btn-login {
    width: 100%;
    padding: 13px;
    background: linear-gradient(135deg, #00d2ff 0%, #0055ff 100%);
    border: none;
    border-radius: 12px;
    color: #ffffff;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(0, 140, 255, 0.45);
    margin-bottom: 12px;
    transition: opacity 0.2s ease, transform 0.1s ease;
}
.cyber-login-card .btn-login:hover { background: linear-gradient(135deg, #33ddff 0%, #2277ff 100%); box-shadow: 0 6px 24px rgba(0, 170, 255, 0.6); }
.cyber-login-card .btn-login:active { transform: scale(0.98); }
.cyber-login-card .btn-passkey:hover { background: rgba(255, 255, 255, 0.14); border-color: rgba(255, 255, 255, 0.35); }
.cyber-login-card .btn-passkey {
    width: 100%;
    padding: 11px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    color: #e2eeff;
    font-size: 13px;
    cursor: pointer;
    transition: background 0.2s ease;
}
.cyber-login-card .btn-passkey:active { background: rgba(255, 255, 255, 0.15); }
/* 既存の.error/.hintをこのカード内だけ暗い背景向けに上書き */
.cyber-login-card .error { color: #ff8fa3; font-size: 13px; margin-bottom: 12px; text-align: center; }
.cyber-login-card .hint { color: #8bb7f0; font-size: 12px; text-align: center; margin-top: 10px; }

/* 支出管理画面 */
.expense-summary-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    text-align: center;
}
.expense-summary-stat { display: flex; flex-direction: column; gap: 6px; }
.expense-summary-label { font-size: 12px; color: var(--muted); font-weight: 500; letter-spacing: 0.02em; }
.expense-summary-value { font-size: 22px; font-weight: 800; letter-spacing: -0.01em; }
.expense-summary-fixed { color: var(--warn); }
.expense-summary-variable { color: var(--link); }
@media (max-width: 480px) {
    .expense-summary-grid { grid-template-columns: 1fr; gap: 14px; }
}

.expense-checkbox-label {
    display: flex !important;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text);
    cursor: pointer;
}
.expense-checkbox-label input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--primary); }

.expense-badge {
    font-size: 11px;
    font-weight: 600;
    padding: 3px 9px;
    border-radius: 999px;
    white-space: nowrap;
}
.expense-badge-fixed { background: var(--warn-soft); color: var(--warn); }
.expense-badge-variable { background: var(--primary-soft); color: var(--link); }