:root {
    --bg-color: #f8fafc;
    --card-bg: rgba(255, 255, 255, 0.9);
    --border-color: rgba(148, 163, 184, 0.12);
    --text-main: #0f172a;
    --text-muted: #64748b;
    --accent-blue: #2563eb;
    --accent-teal: #0d9488;
    --accent-indigo: #4f46e5;
    --glass-bg: rgba(255, 255, 255, 0.75);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    min-height: 100vh;
    padding: 2rem 1.5rem;
    line-height: 1.6;
    background-image: 
        radial-gradient(at 0% 0%, rgba(37, 99, 235, 0.04) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(79, 70, 229, 0.04) 0px, transparent 50%);
}

.container {
    max-width: 1440px;
    margin: 0 auto;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-badge {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-teal));
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.65rem;
    border-radius: 6px;
    font-family: 'Outfit', sans-serif;
    letter-spacing: 0.5px;
}

h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-indigo));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

.mode-badge {
    padding: 0.45rem 1rem;
    border-radius: 9999px;
    font-size: 0.8rem;
    font-weight: 600;
    background: rgba(37, 99, 235, 0.08);
    color: var(--accent-blue);
    border: 1px solid rgba(37, 99, 235, 0.15);
    backdrop-filter: blur(4px);
}

/* 3カラムグリッドレイアウト (左右幅の最適化) */
.grid-layout {
    display: grid;
    grid-template-columns: 340px 1fr 340px; /* 左右に十分な幅を確保 */
    gap: 1.5rem;
    margin-bottom: 2rem;
    align-items: start;
}

@media (max-width: 1100px) {
    .grid-layout {
        grid-template-columns: 1fr;
    }
}

.column-left, .column-center, .column-right {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 1.5rem;
    box-shadow: 0 15px 35px -10px rgba(148, 163, 184, 0.1);
    backdrop-filter: blur(16px);
}

.card-title {
    font-family: 'Outfit', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-title::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 18px;
    background: var(--accent-blue);
    border-radius: 2px;
}

.story-box {
    background: rgba(37, 99, 235, 0.04);
    border: 1px dashed rgba(37, 99, 235, 0.2);
    border-radius: 12px;
    padding: 0.75rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 1.25rem;
}

/* 縦型障害シミュレーター */
.paxos-network-vertical {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    padding: 0.5rem 0;
}

.network-timeline-line {
    position: absolute;
    left: 27px; /* アイコンの中心に合わせる */
    top: 1.5rem;
    bottom: 1.5rem;
    width: 4px;
    background: var(--accent-blue);
    z-index: 1;
    border-radius: 2px;
    transition: all 0.5s ease;
}

.network-timeline-line.full-online {
    background: var(--accent-blue);
    box-shadow: 0 0 8px rgba(37, 99, 235, 0.4);
}

.network-timeline-line.partial-online {
    background: #f59e0b;
    box-shadow: 0 0 8px rgba(245, 158, 11, 0.4);
}

.network-timeline-line.offline {
    background: #ef4444;
    box-shadow: 0 0 8px rgba(239, 68, 68, 0.4);
}

/* 縦長さを抑え、ボタンを底に敷き詰めた新レイアウト */
.node-vertical-item {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column; /* 上下にスタック */
    gap: 0.5rem; /* 極小ギャップ */
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 0.65rem 0.75rem; /* 縦パディングを縮小 */
    box-shadow: 0 4px 12px rgba(148, 163, 184, 0.04);
    transition: all 0.3s ease;
}

.node-vertical-item.OFFLINE {
    border-color: #fca5a5;
    background: #fef2f2;
}

.node-top-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
}

.node-icon-wrapper {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(37, 99, 235, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    border: 1px solid rgba(37, 99, 235, 0.12);
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.node-vertical-item.OFFLINE .node-icon-wrapper {
    background: rgba(239, 68, 68, 0.06);
    border-color: rgba(239, 68, 68, 0.12);
}

.node-vertical-info {
    flex: 1;
    display: flex;
    flex-direction: row; /* 横に並べて十分な幅を持たせる */
    align-items: center;
    justify-content: space-between; /* タイトルを左、バッジを右 */
    gap: 0.5rem;
    min-width: 0;
}

.node-vertical-title {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.node-badge-row {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    flex-shrink: 0; /* 縮まないように固定 */
}

/* 役割バッジ */
.role-badge {
    font-size: 0.6rem;
    font-weight: 700;
    padding: 0.05rem 0.3rem;
    border-radius: 4px;
    text-transform: uppercase;
}

.role-badge.leader {
    background: rgba(37, 99, 235, 0.08);
    color: var(--accent-blue);
    border: 1px solid rgba(37, 99, 235, 0.15);
}

.role-badge.replica {
    background: rgba(13, 148, 136, 0.08);
    color: var(--accent-teal);
    border: 1px solid rgba(13, 148, 136, 0.15);
}

.role-badge.witness {
    background: rgba(79, 70, 229, 0.08);
    color: var(--accent-indigo);
    border: 1px solid rgba(79, 70, 229, 0.15);
}

.node-status {
    font-size: 0.6rem;
    font-weight: 800;
    padding: 0.05rem 0.3rem;
    border-radius: 4px;
    border: 1px solid transparent;
}

.node-status.ONLINE {
    background: rgba(16, 185, 129, 0.08);
    color: #10b981;
    border-color: rgba(16, 185, 129, 0.15);
}

.node-status.OFFLINE {
    background: rgba(239, 68, 68, 0.08);
    color: #ef4444;
    border-color: rgba(239, 68, 68, 0.15);
}

/* プレミアム底敷き詰め立体グロッシーボタン */
.node-toggle-btn {
    font-family: inherit;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.4rem; /* 縦高さを抑えるためのパディング */
    border-radius: 8px;
    border: none;
    color: white;
    cursor: pointer;
    transition: all 0.2s ease;
    outline: none;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%; /* 横幅一杯に敷き詰める */
}

.node-toggle-btn.active-state {
    background: linear-gradient(135deg, #f87171, #ef4444);
    box-shadow: 0 3px 10px rgba(239, 68, 68, 0.15);
    border-bottom: 2px solid #b91c1c;
}

.node-toggle-btn.active-state:hover {
    transform: translateY(-1px);
    box-shadow: 0 5px 14px rgba(239, 68, 68, 0.28);
    background: linear-gradient(135deg, #ef4444, #dc2626);
}

.node-toggle-btn.active-state:active {
    transform: translateY(1px);
    border-bottom: 0px solid transparent;
}

.node-toggle-btn.recover-state {
    background: linear-gradient(135deg, #34d399, #10b981);
    box-shadow: 0 3px 10px rgba(16, 185, 129, 0.15);
    border-bottom: 2px solid #047857;
}

.node-toggle-btn.recover-state:hover {
    transform: translateY(-1px);
    box-shadow: 0 5px 14px rgba(16, 185, 129, 0.28);
    background: linear-gradient(135deg, #10b981, #059669);
}

.node-toggle-btn.recover-state:active {
    transform: translateY(1px);
    border-bottom: 0px solid transparent;
}

.node-toggle-btn:disabled {
    background: #94a3b8;
    box-shadow: none;
    cursor: not-allowed;
    transform: none;
    border-bottom: none;
}

/* Paxos ターミナル */
.paxos-terminal {
    background: #0f172a;
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 480px;
    border: 1px solid #1e293b;
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.6);
}

.terminal-header {
    background: #1e293b;
    padding: 0.5rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    border-bottom: 1px solid #334155;
}

.terminal-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.terminal-dot.red { background: #ef4444; }
.terminal-dot.yellow { background: #f59e0b; }
.terminal-dot.green { background: #10b981; }

.terminal-title {
    color: #94a3b8;
    font-size: 0.7rem;
    font-family: monospace;
    font-weight: 600;
    margin-left: 0.5rem;
}

.terminal-body {
    padding: 0.75rem 1rem;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.75rem;
    color: #e2e8f0;
    overflow-y: auto;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.terminal-line {
    line-height: 1.4;
    word-break: break-all;
}

.terminal-line.system {
    color: #64748b;
}

.terminal-line.text-green {
    color: #4ade80;
}

.terminal-line.text-red {
    color: #f87171;
}

.terminal-line.text-yellow {
    color: #fbbf24;
}

/* フォーム要素 */
.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(148, 163, 184, 0.25);
    border-radius: 10px;
    font-size: 0.95rem;
    font-family: inherit;
    outline: none;
    transition: all 0.25s ease;
}

.form-control:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

textarea.form-control {
    resize: vertical;
}

.btn-submit {
    width: 100%;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-indigo));
    color: white;
    border: none;
    padding: 0.85rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.15);
}

.btn-submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.25);
}

.btn-submit:disabled {
    background: var(--text-muted);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* お問い合わせログ */
.contact-logs {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-height: 400px;
    overflow-y: auto;
    padding-right: 0.5rem;
}

.log-item {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem 1.25rem;
    box-shadow: 0 4px 12px rgba(148, 163, 184, 0.03);
    animation: fadeIn 0.3s ease;
}

.log-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    border-bottom: 1px solid rgba(148, 163, 184, 0.06);
    padding-bottom: 0.25rem;
}

.log-id {
    font-family: monospace;
    font-weight: 600;
    color: var(--accent-blue);
}

.log-sender {
    font-size: 0.9rem;
    color: var(--text-main);
    margin-bottom: 0.4rem;
}

.log-msg {
    font-size: 0.85rem;
    color: #475569;
    font-style: italic;
    background: #f8fafc;
    padding: 0.6rem 0.85rem;
    border-radius: 8px;
    border-left: 3px solid var(--accent-teal);
}

.loading-state, .empty-state {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--text-muted);
    font-style: italic;
}

footer {
    margin-top: 3rem;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Order Table styles */
.order-table-container {
    width: 100%;
    overflow-x: auto;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    margin-top: 10px;
}

.order-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
    text-align: left;
    background: white;
}

.order-table th, .order-table td {
    padding: 10px 8px;
    border-bottom: 1px solid var(--border-color);
}

.order-table th {
    background-color: #f8fafc;
    font-weight: 600;
    color: var(--text-main);
    border-bottom: 2px solid var(--border-color);
}

.order-table tr:hover {
    background-color: #f8fafc;
}

.order-table td {
    color: #334155;
    vertical-align: middle;
}

.order-table .badge-menu {
    font-weight: bold;
    color: var(--accent-blue);
}

.order-table .badge-notes {
    color: #e65100;
    font-weight: bold;
    background: #fff3e0;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.75rem;
    display: inline-block;
}

.order-table .db-verify-box {
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.72rem;
    background: #f1f3f4;
    padding: 6px;
    border-radius: 6px;
    border: 1px solid #dadce0;
    line-height: 1.3;
    min-width: 250px;
}

.order-table .db-verify-status {
    margin-top: 4px;
    border-top: 1px dashed #dadce0;
    padding-top: 4px;
    font-weight: bold;
    color: #137333;
    display: flex;
    justify-content: space-between;
}