html, body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

a, .btn-link {
    color: #006bb7;
}

.btn-primary {
    color: #fff;
    background-color: #1b6ec2;
    border-color: #1861ac;
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

.content {
    padding-top: 1.1rem;
}

h1:focus {
    outline: none;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid #e50000;
}

.validation-message {
    color: #e50000;
}

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.darker-border-checkbox.form-check-input {
    border-color: #929292;
}
<style >
:root {
    --bg: #f3f4f6;
    --card: #ffffff;
    --muted: #64748b;
    --text: #0f172a;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --accent-2: #06b6d4;
    --ok: #16a34a;
    --warn: #f59e0b;
    --danger-bg: #fef2f2;
    --danger-text: #991b1b;
    --line: #e2e8f0;
    --chip: #f1f5f9;
    --radius: 12px;
}

* {
    box-sizing: border-box;
}

html, body {
    height: 100%;
}

body {
    margin: 0;
    font-family: Inter, system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

/* Nav */
.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--card);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    flex-wrap: wrap;
    gap: 16px;
}

.brand {
    display: flex;
    gap: 12px;
    align-items: center;
}

.logo {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.brand h1 {
    font-size: 18px;
    margin: 0;
    font-weight: 700;
}

.tabs {
    display: flex;
    gap: 4px;
    background: var(--chip);
    padding: 4px;
    border-radius: 99px;
}

.tab {
    padding: 8px 16px;
    border-radius: 99px;
    border: none;
    color: var(--muted);
    cursor: pointer;
    background: transparent;
    font-weight: 500;
    transition: all 0.2s;
}

    .tab.active {
        background: #fff;
        color: var(--accent);
        box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    }

/* Layout */
.layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 20px;
    margin-top: 20px;
}

.card {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--card);
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    border-bottom: 1px solid var(--line);
    background: #fff;
    flex-shrink: 0;
}

.title {
    font-weight: 600;
    font-size: 16px;
}

/* Buttons & Inputs */
.controls {
    display: flex;
    gap: 8px;
    align-items: center;
}

.btn {
    padding: 8px 14px;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: #fff;
    color: var(--text);
    cursor: pointer;
    font-weight: 500;
    transition: 0.2s;
}

    .btn:hover {
        background: var(--chip);
    }

    .btn.primary {
        border-color: transparent;
        background: var(--accent);
        color: #fff;
    }

        .btn.primary:hover {
            background: var(--accent-hover);
        }

input, textarea {
    width: 100%;
    padding: 10px;
    border-radius: 8px;
    border: 1px solid var(--line);
    outline: none;
    font-family: inherit;
    transition: border-color 0.2s;
}

    input:focus, textarea:focus {
        border-color: var(--accent);
    }

/* Calendar Grid */
.calendar {
    padding: 20px;
}

.cal-head {
    display: flex;
    justify-content: space-between;
    margin-bottom: 16px;
}

.cal-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 8px;
}

.weekday {
    text-align: center;
    color: var(--muted);
    font-size: 12px;
    padding-bottom: 8px;
}

.cell {
    border: 1px solid var(--line);
    border-radius: 10px;
    min-height: 100px;
    padding: 8px;
    position: relative;
    background: #fff;
    cursor: pointer;
    transition: all 0.2s;
}

    .cell:hover {
        border-color: var(--accent);
        box-shadow: 0 4px 12px rgba(59,130,246,0.15);
        z-index: 1;
    }

    .cell.selected {
        border: 2px solid var(--accent);
    }

    .cell.outside {
        opacity: 0.4;
        background: #f9fafb;
        pointer-events: none;
    }

    /* Status Styles */
    .cell.zero {
        background: var(--danger-bg);
        border-color: #fee2e2;
    }

        .cell.zero .date {
            color: var(--danger-text);
        }

    .cell.has-cap {
        background: #eff6ff;
        border-color: #dbeafe;
    }

    .cell .date {
        font-weight: 600;
        font-size: 13px;
        color: var(--muted);
        margin-bottom: 4px;
    }

    .cell .cap-badge {
        position: absolute;
        bottom: 8px;
        right: 8px;
        background: #fff;
        padding: 2px 8px;
        border-radius: 12px;
        font-size: 12px;
        font-weight: 700;
        border: 1px solid var(--line);
        box-shadow: 0 1px 2px rgba(0,0,0,0.05);
    }

    .cell.zero .cap-badge {
        color: var(--danger-text);
        border-color: #fca5a5;
    }

    .cell.has-cap .cap-badge {
        color: var(--accent);
        border-color: #bfdbfe;
    }

/* Side Panel */
.side {
    padding: 20px;
}

.field {
    margin-bottom: 16px;
}

    .field label {
        display: block;
        margin-bottom: 6px;
        font-weight: 500;
        font-size: 13px;
        color: var(--muted);
    }

/* Admin Specific */
.admin-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr;
    gap: 20px;
    align-items: start;
}

.scrollable-list-container {
    height: 600px;
    overflow: hidden;
}

.list {
    padding: 0;
    flex-grow: 1;
    overflow-y: auto;
}

.list-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--line);
}

    .list-item:last-child {
        border-bottom: none;
    }

/* Tags & Badges */
.tag {
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 4px;
    background: var(--chip);
    color: var(--muted);
    border: 1px solid var(--line);
    margin-left: 8px;
}

    .tag.warn {
        background: #fffbeb;
        color: var(--warn);
        border-color: #fcd34d;
    }

.ng-name {
    display: block;
    font-size: 11px;
    background: #fee2e2;
    color: #991b1b;
    padding: 2px 6px;
    border-radius: 4px;
    margin-top: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    border: 1px solid #fecaca;
}

/* User Management Table Styles */
.table-container {
    overflow-x: auto;
    padding: 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 800px;
}

th {
    text-align: left;
    padding: 12px 16px;
    color: var(--muted);
    font-weight: 500;
    font-size: 13px;
    border-bottom: 1px solid var(--line);
    background: #f8fafc;
}

td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--line);
    font-size: 14px;
    vertical-align: middle;
}

tr:last-child td {
    border-bottom: none;
}

/* Status Badge in Table */
.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 8px;
    border-radius: 99px;
    font-size: 12px;
    font-weight: 600;
}

    .status-badge.done {
        background: #dcfce7;
        color: #166534;
    }

    .status-badge.wip {
        background: #fff7ed;
        color: #9a3412;
    }

    .status-badge.none {
        background: #f1f5f9;
        color: #64748b;
    }

/* Progress Bar in Table */
.progress-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
}

.progress-bg {
    flex: 1;
    height: 6px;
    background: var(--chip);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 3px;
}

/* --- Blazor Server 接続エラー画面のカスタマイズ --- */

/* エラーモーダル全体 */
#components-reconnect-modal {
    background-color: rgba(255, 255, 255, 0.9) !important;
    opacity: 1 !important;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    display: none; /* 初期状態は非表示 */
    align-items: center;
    justify-content: center;
    z-index: 9999;
    position: fixed;
}

    /* 接続切れ・再接続失敗時の表示 */
    #components-reconnect-modal.components-reconnect-show,
    #components-reconnect-modal.components-reconnect-failed,
    #components-reconnect-modal.components-reconnect-rejected {
        display: flex !important;
    }

    /* デフォルトの英語テキストを消す */
    #components-reconnect-modal h5,
    #components-reconnect-modal p {
        display: none;
    }

    /* 日本語メッセージを表示 */
    #components-reconnect-modal::after {
        content: "サーバーとの接続が切れました。再読み込みしています...";
        font-weight: bold;
        color: #333;
        font-size: 1.2rem;
    }

    /* 再接続失敗時はメッセージを変える */
    #components-reconnect-modal.components-reconnect-failed::after {
        content: "接続が切れました。自動で再読み込みします...";
        color: #d32f2f;
    }

/* リロードボタン（自動リロードを入れるなら隠してもOKだが、念のため残す） */
.components-reconnect-reload {
    display: none; /* 自動リロードを入れたのでボタンは隠す */
}

/* Toast Notification */
#toast {
    visibility: hidden;
    min-width: 250px;
    background-color: #333;
    color: #fff;
    text-align: center;
    border-radius: 8px;
    padding: 12px;
    position: fixed;
    z-index: 99;
    left: 50%;
    bottom: 30px;
    transform: translateX(-50%);
    font-size: 14px;
}

    #toast.show {
        visibility: visible;
        animation: fadein 0.5s, fadeout 0.5s 2.5s;
    }

@keyframes fadein {
    from {
        bottom: 0;
        opacity: 0;
    }

    to {
        bottom: 30px;
        opacity: 1;
    }
}

@keyframes fadeout {
    from {
        bottom: 30px;
        opacity: 1;
    }

    to {
        bottom: 0;
        opacity: 0;
    }
}

.hidden {
    display: none;
}

@media (max-width: 1024px) {
    .layout, .admin-grid {
        grid-template-columns: 1fr;
    }

    .scrollable-list-container {
        height: auto;
        max-height: 500px;
    }
}

/* --- Blazor Server 接続エラー画面のカスタマイズ --- */

/* エラーモーダル全体 */
#components-reconnect-modal {
    background-color: rgba(255, 255, 255, 0.9) !important;
    opacity: 1 !important;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    display: none; /* 初期状態は非表示 */
    align-items: center;
    justify-content: center;
    z-index: 9999;
    position: fixed;
}

    /* 接続切れ・再接続失敗時の表示 */
    #components-reconnect-modal.components-reconnect-show,
    #components-reconnect-modal.components-reconnect-failed,
    #components-reconnect-modal.components-reconnect-rejected {
        display: flex !important;
    }

    /* デフォルトの英語テキストを消す */
    #components-reconnect-modal h5,
    #components-reconnect-modal p {
        display: none;
    }

    /* 日本語メッセージを表示 */
    #components-reconnect-modal::after {
        content: "サーバーとの接続が切れました。再読み込みしています...";
        font-weight: bold;
        color: #333;
        font-size: 1.2rem;
    }

    /* 再接続失敗時はメッセージを変える */
    #components-reconnect-modal.components-reconnect-failed::after {
        content: "接続が切れました。自動で再読み込みします...";
        color: #d32f2f;
    }

/* リロードボタン（自動リロードを入れるなら隠してもOKだが、念のため残す） */
.components-reconnect-reload {
    display: none; /* 自動リロードを入れたのでボタンは隠す */
}



</style >