/* =============================================================================
   HoldemClub 共通部品(設計書 v2.8 §9.1.1 / docs/ui.md「全画面に共通する意匠」)

   Client(Blazor WASM)と Identity(Razor Components 静的SSR)の双方が読む。
   色・寸法は theme.css の変数だけを使い、ここでも直書きしない。
   ============================================================================= */

/* =========================== アプリシェル =========================== */

/* .hc-page がビューポート全体。スクロールは .hc-content の内側に閉じる。 */
.hc-page {
    height: 100vh;
    height: 100dvh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--hc-bg);
}

.hc-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 0;
}

/* PC でもスマホ幅の縦カラムに収める(ロビーの .lobby-phone / 卓の .tbl-phone と同じ幅) */
.hc-content {
    flex: 1;
    min-height: 0;
    width: 100%;
    max-width: var(--hc-col);
    overflow-y: auto;
    background: var(--hc-bg);
}

/* 卓・ロビーは自分で1画面に収める(内部スクロールを持たない)ため全幅に開ける */
.hc-content:has(> .table-screen),
.hc-content:has(> .lobby-screen) {
    max-width: none;
    overflow: hidden;
}

/* AppBar の下の本文領域 */
.app-page {
    padding: var(--hc-pad) var(--hc-pad) calc(1.1rem + env(safe-area-inset-bottom));
    display: flex;
    flex-direction: column;
    gap: var(--hc-gap-l);
}

/* =========================== 上部クローム =========================== */

.hc-appbar {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: var(--hc-gap);
    padding: calc(0.6rem + env(safe-area-inset-top)) 0.7rem 0.6rem;
    min-height: 3.25rem;
    color: var(--hc-ink);
    background: linear-gradient(180deg, var(--hc-room-1), var(--hc-room-2));
    border-bottom: 1px solid rgba(201, 164, 92, 0.28);
}

.hc-appbar-back,
.hc-appbar-avatar,
.hc-round {
    flex: none;
    width: 2rem;
    height: 2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.14);
    background: rgba(255, 255, 255, 0.08);
    color: var(--hc-ink);
    text-decoration: none;
    line-height: 1;
    cursor: pointer;
    outline-offset: 0.35rem;
}

/* 見た目は 32px のままで、当たり判定だけを 44px に広げる */
.hc-appbar-back::before,
.hc-appbar-avatar::before,
.hc-round::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    width: var(--hc-tap);
    height: var(--hc-tap);
    transform: translate(-50%, -50%);
}

.hc-appbar-back,
.hc-appbar-avatar,
.hc-round {
    position: relative;
}

.hc-appbar-back {
    font-size: 1.3rem;
}

.hc-appbar-avatar {
    font-weight: 700;
    font-size: 0.85rem;
    border-color: rgba(201, 164, 92, 0.5);
    color: var(--hc-gold-hi);
}

/* 通知のベル(v2.9 / M19)。数字は赤ではなく金 —— この製品で赤は危険
   (キック・卓の解散)に割り当ててあり、「対応してほしい」を赤で出すと
   危険の語彙が薄まる。 */
.hc-bell svg {
    width: 1.05rem;
    height: 1.05rem;
}

.hc-bell-badge {
    position: absolute;
    top: -0.3rem;
    right: -0.3rem;
    min-width: 1.05rem;
    height: 1.05rem;
    padding: 0 0.22rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 99px;
    background: linear-gradient(180deg, var(--hc-gold-hi), var(--hc-gold));
    color: var(--hc-ink-invert);
    font-size: 0.62rem;
    font-weight: 900;
    font-variant-numeric: tabular-nums;
}

.hc-appbar-title {
    flex: 1;
    min-width: 0;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.hc-appbar-sub {
    flex: none;
    font-size: 0.7rem;
    color: var(--hc-muted);
}

.hc-appbar-actions {
    display: flex;
    align-items: center;
    gap: var(--hc-gap-s);
}

.hc-appbar-login {
    color: var(--hc-gold-text);
    font-size: 0.85rem;
}

.hc-appbar-menu-backdrop {
    position: fixed;
    inset: 0;
    z-index: 110;
}

.hc-appbar-menu {
    position: absolute;
    top: calc(100% - 0.2rem);
    right: 0.6rem;
    z-index: 120;
    min-width: 12rem;
    padding: 0.35rem;
    background: var(--hc-bg-raised);
    border: 1px solid var(--hc-line);
    border-radius: var(--hc-radius-l);
    box-shadow: var(--hc-shadow-float);
}

.hc-appbar-menu-name {
    padding: 0.5rem 0.7rem;
    font-size: 0.78rem;
    color: var(--hc-muted);
    border-bottom: 1px solid var(--hc-line);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.hc-appbar-menu-item {
    display: block;
    width: 100%;
    min-height: var(--hc-tap);
    padding: 0.6rem 0.7rem;
    text-align: left;
    border: none;
    background: none;
    color: var(--hc-ink);
    font: inherit;
    font-size: 0.9rem;
    border-radius: var(--hc-radius-m);
    cursor: pointer;
}

.hc-appbar-menu-item:hover {
    background: rgba(255, 255, 255, 0.07);
}

/* =========================== 銘板(認証画面) =========================== */

.hc-brand {
    text-align: center;
}

.hc-crest {
    width: 3.4rem;
    height: 3.4rem;
    margin: 0 auto 0.55rem;
    display: grid;
    place-items: center;
    font-size: 1.55rem;
    color: var(--hc-gold-hi);
    background: linear-gradient(160deg, var(--hc-felt-1), var(--hc-felt-2));
    border: 1.5px solid var(--hc-gold);
    border-radius: var(--hc-radius-xl);
    box-shadow: var(--hc-shadow-float), inset 0 0 0 2px rgba(0, 0, 0, 0.28);
}

.hc-crest-sm {
    width: 2.6rem;
    height: 2.6rem;
    font-size: 1.15rem;
    border-radius: var(--hc-radius-l);
}

.hc-wordmark {
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--hc-gold-text);
}

.hc-tagline {
    font-size: 0.62rem;
    letter-spacing: 0.16em;
    color: var(--hc-muted);
}

/* 認証画面の地。ラウンジの入口を思わせる暗い床と中央のスポット。 */
.hc-auth {
    min-height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.4rem 1.1rem calc(1.2rem + env(safe-area-inset-bottom));
    background:
        radial-gradient(115% 62% at 50% 6%, rgba(184, 68, 127, 0.30), transparent 62%),
        radial-gradient(85% 45% at 50% 100%, rgba(201, 164, 92, 0.12), transparent 70%),
        var(--hc-bg);
}

.hc-auth-card {
    width: 100%;
    max-width: 22rem;
    margin-top: 1rem;
}

.hc-auth-links {
    width: 100%;
    max-width: 22rem;
    margin-top: 0.9rem;
    text-align: center;
    font-size: 0.78rem;
    color: var(--hc-muted);
    line-height: 2;
}

/* =========================== カード・行 =========================== */

.hc-card {
    background: var(--hc-surface);
    border: 1px solid var(--hc-line);
    border-radius: var(--hc-radius-xl);
    padding: 0.8rem;
    box-shadow: var(--hc-shadow-card);
}

.hc-card-title {
    margin: 0 0 0.6rem;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: var(--hc-gold-text);
}

.hc-section-label {
    margin: 0.2rem 0 0;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--hc-muted);
}

/* 一覧の行。行のどこを押しても主動作(ロビーの卓行と同じ規則)。 */
.hc-row {
    display: flex;
    align-items: center;
    gap: var(--hc-gap);
    width: 100%;
    min-height: var(--hc-row-h);
    padding: 0.55rem 0.65rem;
    text-align: left;
    color: var(--hc-ink);
    background: var(--hc-surface);
    border: 1px solid var(--hc-line);
    border-radius: var(--hc-radius-l);
    font: inherit;
    cursor: pointer;
}

.hc-row:hover {
    background: var(--hc-surface-2);
}

.hc-row-static {
    cursor: default;
}

.hc-row-static:hover {
    background: var(--hc-surface);
}

.hc-row-danger {
    border-color: rgba(224, 87, 107, 0.4);
}

.hc-row-label {
    flex: 1;
    min-width: 0;
}

.hc-row-label > b {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
}

.hc-row-label > span {
    display: block;
    font-size: 0.68rem;
    color: var(--hc-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.hc-chevron {
    flex: none;
    color: var(--hc-muted);
}

/* 行頭のアイコン枠 */
.hc-tile {
    flex: none;
    width: 2rem;
    height: 2rem;
    display: grid;
    place-items: center;
    border-radius: var(--hc-radius-m);
    color: var(--hc-gold-hi);
    background: rgba(201, 164, 92, 0.12);
    border: 1px solid rgba(201, 164, 92, 0.34);
}

.hc-tile-neon {
    color: var(--hc-neon);
    background: rgba(47, 224, 138, 0.12);
    border-color: rgba(47, 224, 138, 0.34);
}

.hc-tile-danger {
    color: var(--hc-danger);
    background: rgba(224, 87, 107, 0.12);
    border-color: rgba(224, 87, 107, 0.34);
}

/* 人のアバター */
.hc-avatar {
    flex: none;
    width: 2rem;
    height: 2rem;
    display: grid;
    place-items: center;
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 700;
    color: #cfd8e6;
    background: linear-gradient(160deg, #33405a, #1d2433);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.hc-avatar-owner {
    color: var(--hc-gold-hi);
    border-color: var(--hc-gold);
}

/* 右端の数字(残高・レーキ) */
.hc-amount {
    flex: none;
    text-align: right;
}

.hc-amount > b {
    display: block;
    font-size: 0.85rem;
    color: var(--hc-gold-text);
    font-variant-numeric: tabular-nums;
}

.hc-amount > span {
    display: block;
    font-size: 0.62rem;
    color: var(--hc-muted);
}

/* =========================== チップ(状態バッジ) =========================== */

.hc-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.1rem 0.55rem;
    border-radius: 99px;
    border: 1px solid transparent;
    font-size: 0.68rem;
    font-weight: 700;
    white-space: nowrap;
}

.hc-chip-role,
.hc-chip-gray {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--hc-line);
    color: var(--hc-muted);
}

.hc-chip-live,
.hc-chip-neon {
    background: rgba(47, 224, 138, 0.16);
    border-color: rgba(47, 224, 138, 0.4);
    color: var(--hc-neon);
}

.hc-chip-gold,
.hc-chip-wait {
    background: rgba(201, 164, 92, 0.16);
    border-color: rgba(201, 164, 92, 0.4);
    color: var(--hc-gold-text);
}

.hc-chip-danger {
    background: rgba(224, 87, 107, 0.16);
    border-color: rgba(224, 87, 107, 0.4);
    color: var(--hc-danger-ink);
}

/* =========================== ボタン =========================== */

.hc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    min-height: var(--hc-tap);
    padding: 0 0.9rem;
    border: 1px solid transparent;
    border-radius: var(--hc-radius-l);
    font: inherit;
    font-size: 0.87rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    text-decoration: none;
    cursor: pointer;
    transition: filter 0.12s ease;
}

.hc-btn:hover:not(:disabled) {
    filter: brightness(1.08);
    text-decoration: none;
}

.hc-btn:disabled,
.hc-btn[disabled] {
    opacity: 0.5;
    cursor: not-allowed;
}

.hc-btn-gold {
    background: linear-gradient(180deg, var(--hc-gold-hi), var(--hc-gold));
    color: var(--hc-ink-invert);
}

.hc-btn-neon {
    background: linear-gradient(180deg, #56f0a8, #24b774);
    color: #06251a;
}

.hc-btn-ghost {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--hc-line-control);
    color: var(--hc-ink);
}

.hc-btn-danger {
    background: rgba(224, 87, 107, 0.14);
    border-color: rgba(224, 87, 107, 0.5);
    color: var(--hc-danger-ink);
}

.hc-btn-quiet {
    background: none;
    border-color: transparent;
    color: var(--hc-muted);
    font-weight: 600;
}

.hc-btn-sm {
    min-height: 2rem;
    padding: 0 0.65rem;
    font-size: 0.77rem;
    border-radius: var(--hc-radius-m);
}

.hc-btn-lg {
    min-height: 3rem;
    font-size: 0.95rem;
}

.hc-btn-block {
    display: flex;
    width: 100%;
}

/* ボタンを横に並べる(等分) */
.hc-btn-row {
    display: flex;
    gap: var(--hc-gap);
}

.hc-btn-row > * {
    flex: 1;
}

/* 画面右下の主動作(卓作成など) */
.hc-fab {
    position: absolute;
    right: 0.9rem;
    bottom: calc(1.1rem + env(safe-area-inset-bottom));
    width: 3rem;
    height: 3rem;
    display: grid;
    place-items: center;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    font-weight: 300;
    background: linear-gradient(180deg, var(--hc-gold-hi), var(--hc-gold));
    color: var(--hc-ink-invert);
    box-shadow: var(--hc-shadow-float);
    cursor: pointer;
}

/* =========================== 入力 =========================== */

.hc-field {
    display: block;
    margin-bottom: var(--hc-gap-l);
}

.hc-label {
    display: block;
    margin-bottom: 0.25rem;
    font-size: 0.68rem;
    color: var(--hc-muted);
}

.hc-input,
.hc-select,
.hc-textarea {
    display: block;
    width: 100%;
    min-height: 2.5rem;
    padding: 0.45rem 0.7rem;
    color: var(--hc-ink);
    background: var(--hc-sunken);
    border: 1px solid var(--hc-line-control);
    border-radius: var(--hc-radius-m);
    font: inherit;
    font-size: 0.9rem;
}

.hc-textarea {
    min-height: 5rem;
    resize: vertical;
}

.hc-select {
    appearance: none;
    padding-right: 1.8rem;
    background-image: linear-gradient(45deg, transparent 50%, var(--hc-muted) 50%),
                      linear-gradient(135deg, var(--hc-muted) 50%, transparent 50%);
    background-position: right 0.85rem center, right 0.6rem center;
    background-size: 5px 5px, 5px 5px;
    background-repeat: no-repeat;
}

.hc-input::placeholder,
.hc-textarea::placeholder {
    color: #5c6674;
}

.hc-input:focus,
.hc-select:focus,
.hc-textarea:focus {
    outline: none;
    border-color: var(--hc-gold);
    box-shadow: 0 0 0 3px rgba(201, 164, 92, 0.22);
}

.hc-input.invalid,
.hc-select.invalid,
.hc-textarea.invalid {
    border-color: rgba(224, 87, 107, 0.65);
}

.hc-hint {
    margin-top: 0.25rem;
    font-size: 0.66rem;
    color: var(--hc-muted);
}

.hc-error,
.validation-message {
    margin-top: 0.25rem;
    font-size: 0.7rem;
    color: var(--hc-danger-ink);
}

.hc-input.valid.modified,
.hc-select.valid.modified,
.hc-textarea.valid.modified {
    border-color: rgba(47, 224, 138, 0.5);
}

/* トグル行(設定の ON/OFF) */
.hc-toggle {
    display: flex;
    align-items: center;
    gap: var(--hc-gap);
    width: 100%;
    min-height: var(--hc-tap);
    padding: 0.4rem 0;
    background: none;
    border: none;
    border-top: 1px solid var(--hc-line);
    color: inherit;
    font: inherit;
    text-align: left;
    cursor: pointer;
}

.hc-toggle:first-of-type {
    border-top: none;
}

.hc-toggle-label {
    flex: 1;
    min-width: 0;
}

.hc-toggle-label > b {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
}

.hc-toggle-label > span {
    display: block;
    font-size: 0.66rem;
    color: var(--hc-muted);
}

.hc-switch {
    position: relative;
    flex: none;
    width: 2.4rem;
    height: 1.35rem;
    border-radius: 99px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid var(--hc-line-control);
    transition: background 0.15s ease;
}

.hc-switch::after {
    content: "";
    position: absolute;
    top: 0.1rem;
    left: 0.1rem;
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
    background: #8b96a5;
    transition: transform 0.15s ease, background 0.15s ease;
}

.hc-switch-on {
    background: rgba(47, 224, 138, 0.28);
    border-color: rgba(47, 224, 138, 0.55);
}

.hc-switch-on::after {
    transform: translateX(1.05rem);
    background: var(--hc-neon);
}

/* チェック行 */
.hc-check {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    min-height: var(--hc-tap);
    font-size: 0.85rem;
    cursor: pointer;
}

.hc-check input[type="checkbox"] {
    width: 1.15rem;
    height: 1.15rem;
    accent-color: var(--hc-gold);
    flex: none;
}

/* ==== スライダー(0〜100 の度合いを持つ設定) ====
   数値入力と併置して使う。バーで大まかに、数値で正確に —— どちらか一方だと
   「だいたい強め」も「ちょうど 50」も出しにくい。 */
.hc-range-row {
    display: flex;
    align-items: center;
    gap: var(--hc-gap);
}

.hc-range {
    flex: 1;
    min-width: 0;
    height: var(--hc-tap);
    margin: 0;
    accent-color: var(--hc-gold);
    background: transparent;
    cursor: pointer;
}

.hc-range:focus-visible {
    outline: 2px solid var(--hc-gold);
    outline-offset: 2px;
    border-radius: var(--hc-radius-s);
}

/* 数値入力はバーの隣に置くので、幅を内容ぶんに絞る。 */
.hc-range-row .hc-input {
    flex: none;
    width: 4.5rem;
    text-align: center;
}

/* 目盛りの意味づけ。数字だけでは「大きいと何がどうなるか」が分からない。 */
.hc-range-scale {
    display: flex;
    justify-content: space-between;
    margin-top: 0.15rem;
    font-size: 0.62rem;
    color: var(--hc-muted);
}

.hc-range-scale span:nth-child(2) {
    color: var(--hc-gold-text);
}

/* 「または」の区切り(パスキーとパスワードの間) */
.hc-or {
    display: flex;
    align-items: center;
    gap: var(--hc-gap);
    margin: var(--hc-gap-l) 0;
    font-size: 0.68rem;
    color: var(--hc-muted);
}

.hc-or::before,
.hc-or::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--hc-line);
}

/* =========================== 帯・注意書き =========================== */

.hc-alert {
    padding: 0.5rem 0.65rem;
    margin-bottom: var(--hc-gap-l);
    border: 1px solid rgba(224, 87, 107, 0.45);
    border-radius: var(--hc-radius-m);
    background: rgba(224, 87, 107, 0.10);
    color: var(--hc-danger-ink);
    font-size: 0.78rem;
}

.hc-alert-ok {
    border-color: rgba(47, 224, 138, 0.45);
    background: rgba(47, 224, 138, 0.09);
    color: #9df0c4;
}

.hc-alert-info {
    border-color: rgba(201, 164, 92, 0.42);
    background: rgba(201, 164, 92, 0.08);
    color: var(--hc-gold-text);
}

.hc-danger-area {
    padding: 0.65rem 0.8rem;
    border: 1px solid rgba(224, 87, 107, 0.45);
    border-radius: var(--hc-radius-m);
    background: rgba(224, 87, 107, 0.08);
}

/* =========================== タブ =========================== */

.hc-tabs {
    display: flex;
    gap: 0.25rem;
    padding: 0.5rem 0.8rem 0;
    border-bottom: 1px solid var(--hc-line);
}

.hc-tab {
    flex: 1;
    min-height: var(--hc-tap);
    padding: 0.4rem 0 0.35rem;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--hc-muted);
    font: inherit;
    font-size: 0.8rem;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
}

.hc-tab-on {
    color: var(--hc-gold-text);
    border-bottom-color: var(--hc-gold);
}

/* =========================== 数字の3連 =========================== */

.hc-kpi {
    display: flex;
    gap: var(--hc-gap-s);
}

.hc-kpi > * {
    flex: 1;
    padding: 0.4rem 0.25rem;
    text-align: center;
    background: rgba(0, 0, 0, 0.34);
    border: 1px solid var(--hc-line);
    border-radius: var(--hc-radius-m);
}

.hc-kpi b {
    display: block;
    font-size: 0.92rem;
    font-variant-numeric: tabular-nums;
}

.hc-kpi span {
    font-size: 0.62rem;
    color: var(--hc-muted);
}

/* =========================== モーダル / ボトムシート =========================== */

/* スマホ(既定)はボトムシート、641px 以上では中央モーダル */
.hc-modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1050;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    background: rgba(3, 5, 9, 0.68);
}

.hc-modal {
    width: 100%;
    max-height: 90dvh;
    overflow-y: auto;
    padding: 0.6rem 0.9rem calc(1rem + env(safe-area-inset-bottom));
    background: var(--hc-bg-raised);
    border: 1px solid var(--hc-line);
    border-bottom: none;
    border-top-color: rgba(201, 164, 92, 0.34);
    border-radius: var(--hc-radius-xl) var(--hc-radius-xl) 0 0;
    box-shadow: var(--hc-shadow-float);
}

.hc-modal::before {
    content: "";
    display: block;
    width: 2.6rem;
    height: 4px;
    margin: 0.15rem auto 0.7rem;
    border-radius: 2px;
    background: #39414e;
}

@media (min-width: 641px) {
    .hc-modal-backdrop {
        align-items: center;
        padding: 1rem;
    }

    .hc-modal {
        max-width: 30rem;
        border: 1px solid var(--hc-line);
        border-radius: var(--hc-radius-xl);
        padding-bottom: 1.1rem;
    }

    .hc-modal::before {
        display: none;
    }
}

/* =========================== 読み込み中 =========================== */

.hc-spinner {
    width: 2.1rem;
    height: 2.1rem;
    margin: 0 auto;
    border: 3px solid rgba(201, 164, 92, 0.22);
    border-top-color: var(--hc-gold-hi);
    border-radius: 50%;
    animation: hc-spin 0.9s linear infinite;
}

@keyframes hc-spin {
    to { transform: rotate(360deg); }
}

.hc-center {
    display: grid;
    place-items: center;
    min-height: 60dvh;
    text-align: center;
    padding: 1rem;
}

/* =========================== 互換ユーティリティ =========================== */
/* Bootstrap を撤去したため、既存画面が使っている分だけを最小限で置き換える。
   新しい画面では hc-* の部品クラスを使い、ここは増やさない。 */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    min-height: var(--hc-tap);
    padding: 0 0.9rem;
    border: 1px solid transparent;
    border-radius: var(--hc-radius-l);
    font: inherit;
    font-size: 0.87rem;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
}

.btn:disabled,
.btn[disabled] {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: linear-gradient(180deg, var(--hc-gold-hi), var(--hc-gold));
    color: var(--hc-ink-invert);
}

.btn-success,
.btn-green {
    background: linear-gradient(180deg, #56f0a8, #24b774);
    color: #06251a;
}

.btn-outline-primary,
.btn-outline-secondary {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--hc-line-control);
    color: var(--hc-ink);
}

.btn-outline-warning {
    background: rgba(232, 180, 92, 0.12);
    border-color: rgba(232, 180, 92, 0.5);
    color: var(--hc-warn);
}

.btn-danger,
.btn-outline-danger {
    background: rgba(224, 87, 107, 0.14);
    border-color: rgba(224, 87, 107, 0.5);
    color: var(--hc-danger-ink);
}

.btn-sm {
    min-height: 2rem;
    padding: 0 0.65rem;
    font-size: 0.77rem;
    border-radius: var(--hc-radius-m);
}

.btn-lg {
    min-height: 3rem;
    font-size: 0.95rem;
}

.form-control,
.form-select {
    display: block;
    width: 100%;
    min-height: 2.5rem;
    padding: 0.45rem 0.7rem;
    color: var(--hc-ink);
    background: var(--hc-sunken);
    border: 1px solid var(--hc-line-control);
    border-radius: var(--hc-radius-m);
    font: inherit;
    font-size: 0.9rem;
}

.form-control-lg {
    min-height: 3rem;
    font-size: 1rem;
}

.form-select {
    appearance: none;
    padding-right: 1.8rem;
    background-image: linear-gradient(45deg, transparent 50%, var(--hc-muted) 50%),
                      linear-gradient(135deg, var(--hc-muted) 50%, transparent 50%);
    background-position: right 0.85rem center, right 0.6rem center;
    background-size: 5px 5px, 5px 5px;
    background-repeat: no-repeat;
}

.form-control:focus,
.form-select:focus {
    outline: none;
    border-color: var(--hc-gold);
    box-shadow: 0 0 0 3px rgba(201, 164, 92, 0.22);
}

.form-control::placeholder {
    color: #5c6674;
}

.form-control.invalid,
.form-select.invalid {
    border-color: rgba(224, 87, 107, 0.65);
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 calc(var(--hc-gap-s) * -1);
}

.row > [class^="col-"],
.row > [class*=" col-"] {
    padding: 0 var(--hc-gap-s);
}

.col-4 { flex: 0 0 33.3333%; max-width: 33.3333%; }
.col-6 { flex: 0 0 50%; max-width: 50%; }
.col-12 { flex: 0 0 100%; max-width: 100%; }
.g-2 { row-gap: var(--hc-gap); }

.d-flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.flex-grow-1 { flex-grow: 1; }
.align-items-center { align-items: center; }
.justify-content-between { justify-content: space-between; }
.gap-2 { gap: var(--hc-gap); }
.w-100 { width: 100%; }

.small { font-size: 0.78rem; }
.h5 { font-size: 1rem; font-weight: 700; }
.text-muted { color: var(--hc-muted); }
.text-danger { color: var(--hc-danger-ink); }
.text-warning { color: var(--hc-warn); }

.m-4 { margin: 1.25rem; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.ms-2 { margin-left: 0.5rem; }

/* =========================== Blazor の枠組み =========================== */

#blazor-error-ui {
    position: fixed;
    left: 0;
    bottom: 0;
    z-index: 1000;
    display: none;
    width: 100%;
    padding: 0.6rem 1.25rem 0.7rem;
    background: var(--hc-bg-raised);
    color: var(--hc-ink);
    border-top: 1px solid rgba(224, 87, 107, 0.5);
    box-shadow: 0 -1px 8px rgba(0, 0, 0, 0.5);
}

#blazor-error-ui .dismiss {
    position: absolute;
    top: 0.5rem;
    right: 0.75rem;
    cursor: pointer;
}

.blazor-error-boundary {
    padding: 1rem;
    background: rgba(224, 87, 107, 0.14);
    border: 1px solid rgba(224, 87, 107, 0.5);
    border-radius: var(--hc-radius-m);
    color: var(--hc-danger-ink);
}

.blazor-error-boundary::after {
    content: "エラーが発生しました。";
}

.loading-progress {
    position: absolute;
    display: block;
    width: 8rem;
    height: 8rem;
    inset: 20vh 0 auto 0;
    margin: 0 auto;
}

.loading-progress circle {
    fill: none;
    stroke: rgba(255, 255, 255, 0.1);
    stroke-width: 0.5rem;
    transform-origin: 50% 50%;
    transform: rotate(-90deg);
}

.loading-progress circle:last-child {
    stroke: var(--hc-gold);
    stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
    transition: stroke-dasharray 0.05s ease-in-out;
}

.loading-progress-text {
    position: absolute;
    inset: calc(20vh + 3.25rem) 0 auto 0.2rem;
    text-align: center;
    font-weight: 700;
    color: var(--hc-muted);
}

.loading-progress-text::after {
    content: var(--blazor-load-percentage-text, "読み込み中");
}