/* ==============================
   プロジェクト共通カスタムCSS
   ============================== */

/* --- カラーパレット --- */
:root {
    --mc-primary: #1e3a5f;
    --mc-primary-light: #2c5282;
    --mc-accent: #0ea5e9;
    --mc-accent-light: #e0f2fe;
    --mc-surface: #f8fafc;
    --mc-border: #e2e8f0;
    --mc-text: #1e293b;
    --mc-text-muted: #64748b;
    --mc-success: #10b981;
    --mc-success-light: #ecfdf5;
    --mc-warning: #f59e0b;
    --mc-warning-light: #fffbeb;
    --mc-danger: #ef4444;
    --mc-danger-light: #fef2f2;
    --mc-info: #06b6d4;
    --mc-info-light: #ecfeff;
    --mc-card-radius: 10px;
    --mc-transition: 0.2s ease;
}

/* --- スキップリンク --- */
.skip-link {
    position: absolute;
    top: -100%;
    left: 0;
    z-index: 9999;
    padding: 12px 24px;
    background-color: var(--mc-primary);
    color: #fff;
    font-weight: 600;
    text-decoration: none;
    border-radius: 0 0 8px 0;
}

.skip-link:focus {
    top: 0;
    outline: 3px solid var(--mc-accent);
}

/* --- フォント・ベース --- */
body {
    font-family: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--mc-text);
    background-color: var(--mc-surface);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* --- 見出し --- */
h1, h2, h3, h4, h5, h6,
.fs-1, .fs-2, .fs-3, .fs-4, .fs-5 {
    font-weight: 600;
    color: var(--mc-text);
}

/* --- ヒーローセクション --- */
.hero {
    background: linear-gradient(135deg, var(--mc-primary) 0%, var(--mc-primary-light) 40%, var(--mc-accent) 100%);
    position: relative;
    overflow: hidden;
    padding: 28px 16px;
    text-align: center;
    color: #fff;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(ellipse at 30% 50%, rgba(255,255,255,0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 20%, rgba(255,255,255,0.06) 0%, transparent 50%);
    pointer-events: none;
}

.hero-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.hero-icon {
    width: 64px;
    height: 64px;
    color: #fff;
    flex-shrink: 0;
    filter: drop-shadow(0 2px 8px rgba(0,0,0,0.18));
}

.hero-text {
    text-align: left;
}

.hero-title {
    font-family: 'M PLUS 1', 'Noto Sans JP', sans-serif;
    font-size: 2rem;
    font-weight: 900;
    letter-spacing: 0.15em;
    margin: 0;
    position: relative;
    text-shadow: 0 2px 12px rgba(0,0,0,0.2);
    color: #fff;
}

.hero-accent-line {
    width: 120px;
    height: 3px;
    background: linear-gradient(90deg, #0ea5e9, #38bdf8 60%, transparent);
    border-radius: 2px;
    margin: 6px 0 4px;
}

.hero-subtitle {
    font-family: 'M PLUS 1', 'Noto Sans JP', sans-serif;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    margin: 0;
    opacity: 0.8;
    position: relative;
    text-transform: uppercase;
}

@media (min-width: 768px) {
    .hero { padding: 40px 24px; }
    .hero-icon { width: 80px; height: 80px; }
    .hero-brand { gap: 28px; }
    .hero-title { font-size: 2.6rem; }
    .hero-accent-line { width: 160px; margin: 8px 0 6px; }
    .hero-subtitle { font-size: 0.95rem; }
}

/* --- ナビバー --- */
.navbar.bg-dark {
    background: linear-gradient(135deg, var(--mc-primary), var(--mc-primary-light)) !important;
    border-bottom: 3px solid var(--mc-accent);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    padding-top: 0.4rem;
    padding-bottom: 0.4rem;
}

.navbar .navbar-brand {
    font-weight: 700;
    letter-spacing: 0.02em;
    font-size: 0.95rem;
}

.navbar .nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    transition: color var(--mc-transition), background-color var(--mc-transition);
    border-radius: 6px;
    padding: 6px 12px !important;
}

.navbar .nav-link:hover,
.navbar .nav-link:focus {
    background-color: rgba(255, 255, 255, 0.1);
}

.navbar .dropdown-menu {
    border: none;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    padding: 6px 0;
    font-size: 0.875rem;
    margin-top: 0;
}

.navbar .dropdown-item {
    border-radius: 4px;
    margin: 0 6px;
    padding: 7px 12px;
    transition: background-color var(--mc-transition);
}

.navbar .dropdown-item:hover {
    background-color: var(--mc-accent-light);
    color: var(--mc-primary);
}

/* --- メインコンテンツ --- */
main {
    min-height: 60vh;
}

/* --- カード --- */
.card {
    border: 1px solid var(--mc-border);
    border-radius: var(--mc-card-radius);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
    transition: box-shadow var(--mc-transition);
}

.card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.card-header {
    font-weight: 600;
    letter-spacing: 0.02em;
    border-bottom: 1px solid var(--mc-border);
}

.card-header.bg-light {
    background-color: #f1f5f9 !important;
}

.card-header.bg-info {
    background: linear-gradient(135deg, #06b6d4, #0ea5e9) !important;
    color: #fff;
    border-bottom: none;
    border-radius: var(--mc-card-radius) var(--mc-card-radius) 0 0 !important;
}

.card-header.bg-warning {
    background: linear-gradient(135deg, #f59e0b, #d97706) !important;
    color: #fff;
    border-bottom: none;
    border-radius: var(--mc-card-radius) var(--mc-card-radius) 0 0 !important;
}

.card-header.bg-primary {
    background: linear-gradient(135deg, var(--mc-primary), var(--mc-primary-light)) !important;
    color: #fff;
    border-bottom: none;
    border-radius: var(--mc-card-radius) var(--mc-card-radius) 0 0 !important;
}

.card-header.bg-success {
    border-radius: var(--mc-card-radius) var(--mc-card-radius) 0 0 !important;
}

.card-header.bg-danger {
    border-radius: var(--mc-card-radius) var(--mc-card-radius) 0 0 !important;
}

.card-footer {
    background-color: transparent;
    border-top: 1px solid var(--mc-border);
}

/* --- セクションヘッダー（ダッシュボード等の帯） --- */
div.bg-info.text-center,
h1.bg-info, h2.bg-info, h3.bg-info, h4.bg-info, h5.bg-info, h6.bg-info {
    background: linear-gradient(135deg, #06b6d4, #0ea5e9) !important;
    color: #fff;
    font-weight: 600;
    border-radius: 8px;
    padding: 10px 0;
    letter-spacing: 0.04em;
}

div.bg-warning.text-center,
h1.bg-warning, h2.bg-warning, h3.bg-warning, h4.bg-warning, h5.bg-warning, h6.bg-warning {
    background: linear-gradient(135deg, #f59e0b, #d97706) !important;
    color: #fff;
    font-weight: 600;
    border-radius: 8px;
    padding: 10px 0;
    letter-spacing: 0.04em;
}

/* --- テーブル --- */
.table {
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.9rem;
}

.table thead th {
    background-color: #f1f5f9;
    color: var(--mc-text);
    border-bottom: 2px solid var(--mc-border);
    padding: 10px 14px;
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.table thead.thead-dark th,
.table thead.table-dark th {
    background-color: var(--mc-primary);
    color: #fff;
    border-bottom: none;
}

.table thead.table-light th {
    background-color: #f1f5f9;
    color: var(--mc-text);
    border-bottom: 2px solid var(--mc-border);
}

.table tbody td {
    padding: 9px 14px;
    border-bottom: 1px solid var(--mc-border);
    vertical-align: middle;
}

.table tbody tr {
    transition: background-color var(--mc-transition);
}

.table-hover tbody tr:hover {
    background-color: var(--mc-accent-light) !important;
}

.table-striped > tbody > tr:nth-of-type(odd) > * {
    --bs-table-bg-type: rgba(0, 0, 0, 0.018);
}

/* --- ボタン --- */
.btn {
    border-radius: 8px;
    font-weight: 500;
    font-size: 0.875rem;
    padding: 7px 16px;
    transition: all var(--mc-transition);
    letter-spacing: 0.01em;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

.btn:active {
    transform: translateY(0);
    box-shadow: none;
}

.btn-sm {
    padding: 4px 10px;
    font-size: 0.8rem;
}

.btn-primary {
    background-color: var(--mc-primary);
    border-color: var(--mc-primary);
}

.btn-primary:hover {
    background-color: var(--mc-primary-light);
    border-color: var(--mc-primary-light);
}

.btn-success {
    background-color: var(--mc-success);
    border-color: var(--mc-success);
}

.btn-warning {
    background-color: var(--mc-warning);
    border-color: var(--mc-warning);
    color: #fff;
}

.btn-warning:hover {
    background-color: #d97706;
    border-color: #d97706;
    color: #fff;
}

.btn-danger {
    background-color: var(--mc-danger);
    border-color: var(--mc-danger);
}

.btn-outline-primary {
    border-color: var(--mc-primary);
    color: var(--mc-primary);
}

.btn-outline-primary:hover {
    background-color: var(--mc-primary);
    border-color: var(--mc-primary);
    color: #fff;
}

.btn-outline-secondary {
    border-color: var(--mc-border);
    color: var(--mc-text-muted);
}

.btn-outline-secondary:hover {
    background-color: #f1f5f9;
    border-color: var(--mc-border);
    color: var(--mc-text);
}

.btn-outline-danger {
    border-color: var(--mc-danger);
    color: var(--mc-danger);
}

.btn-outline-danger:hover {
    background-color: var(--mc-danger);
    border-color: var(--mc-danger);
    color: #fff;
}

/* bg-primary のリンクボタン用 */
a.bg-primary {
    background-color: var(--mc-primary) !important;
    color: #fff !important;
    text-decoration: none;
    border-radius: 8px;
    transition: all var(--mc-transition);
}

a.bg-primary:hover {
    background-color: var(--mc-primary-light) !important;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

/* --- メッセージ/アラート --- */
.messages {
    padding: 0;
    margin: 0;
}

.messages li {
    list-style: none;
    border-radius: 8px;
    padding: 12px 16px;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.messages li.success {
    background-color: var(--mc-success-light);
    color: #065f46;
    border-left: 4px solid var(--mc-success);
}

.messages li.error {
    background-color: var(--mc-danger-light);
    color: #991b1b;
    border-left: 4px solid var(--mc-danger);
}

.messages li.warning {
    background-color: var(--mc-warning-light);
    color: #92400e;
    border-left: 4px solid var(--mc-warning);
}

.messages li.info {
    background-color: var(--mc-info-light);
    color: #155e75;
    border-left: 4px solid var(--mc-info);
}

/* --- バッジ --- */
.badge {
    font-weight: 500;
    letter-spacing: 0.02em;
    padding: 5px 10px;
}

.badge.bg-primary {
    background-color: var(--mc-primary) !important;
}

.badge.bg-info {
    background-color: var(--mc-accent) !important;
}

/* --- ページネーション --- */
.pagination .page-link {
    border-radius: 8px;
    margin: 0 3px;
    border: 1px solid var(--mc-border);
    color: var(--mc-primary);
    font-weight: 500;
    font-size: 0.875rem;
    padding: 6px 12px;
    transition: all var(--mc-transition);
}

.pagination .page-link:hover {
    background-color: var(--mc-primary);
    border-color: var(--mc-primary);
    color: #fff;
}

.pagination .page-item.disabled .page-link {
    background-color: var(--mc-surface);
    color: var(--mc-text-muted);
}

.pagination .page-item.active .page-link {
    background-color: var(--mc-primary);
    border-color: var(--mc-primary);
}

/* --- フォーム --- */
.form-control,
.form-select {
    border-radius: 8px;
    border: 1px solid var(--mc-border);
    padding: 8px 14px;
    font-size: 0.9rem;
    transition: border-color var(--mc-transition), box-shadow var(--mc-transition);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--mc-accent);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

.form-label {
    font-weight: 500;
    font-size: 0.85rem;
    color: var(--mc-text-muted);
    margin-bottom: 4px;
}

/* --- ログインページ --- */
.login-container {
    margin: 0 auto;
}

.login-card {
    border: none;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.login-card:hover {
    transform: none;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.login-card .card-header {
    background: linear-gradient(135deg, var(--mc-primary), var(--mc-primary-light)) !important;
    color: #fff;
    text-align: center;
    padding: 24px;
    font-size: 1.25rem;
}

.login-card .card-body {
    padding: 32px;
}

/* --- フッター --- */
footer {
    background-color: #f1f5f9;
    border-top: 1px solid var(--mc-border);
    color: var(--mc-text-muted);
    margin-top: 2rem;
}

/* --- shadow-sm 統一 --- */
.shadow-sm {
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06) !important;
}

/* --- code タグ --- */
code {
    background-color: #f1f5f9;
    color: var(--mc-primary);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.85em;
}

/* --- テキスト装飾 --- */
.text-decoration-underline {
    text-decoration: none !important;
    border-bottom: 2px solid var(--mc-accent);
    padding-bottom: 2px;
}

/* --- 既存（後方互換） --- */
.highlighted-border {
    border: 1px solid var(--mc-border);
    border-radius: 8px;
    padding: 5px;
}

.bg-silver {
    background-color: #e2e8f0;
}

textarea {
    width: 100%;
    box-sizing: border-box;
}

/* --- Plotly グラフ --- */
.js-plotly-plot,
.plotly-graph-div {
    width: 100% !important;
    z-index: 0;
}

/* --- 印刷時 --- */
@media print {
    body {
        background: #fff;
    }

    .card,
    .card:hover {
        transform: none !important;
        box-shadow: none !important;
        border: 1px solid #ddd;
    }

    .navbar, .hero, footer {
        display: none !important;
    }

    .btn:hover {
        transform: none;
        box-shadow: none;
    }

    .text-decoration-underline {
        border-bottom: 1px solid #000;
    }
}