/* === Design System: Monochrome + Rounded === */
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #f7f7f7;
    color: #222;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

a { color: #222; }

/* --- Layout --- */
.container {
    max-width: 760px;
    margin: 0 auto;
    padding: 32px 20px 40px;
    flex: 1 0 auto;
}

.container-narrow {
    max-width: 480px;
    margin: 0 auto;
    padding: 32px 20px 40px;
    flex: 1 0 auto;
}

/* --- Typography --- */
h1 { font-size: 28px; margin-bottom: 20px; color: #111; }
h2 { font-size: 22px; margin-bottom: 16px; color: #111; font-weight: 700; }
h3 { font-size: 18px; margin-bottom: 12px; color: #111; font-weight: 700; }

/* --- Header (sticky) --- */
.header {
    background: #fff;
    border-bottom: 1px solid #e0e0e0;
    padding: 14px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    flex-shrink: 0;
}

.header h1 { font-size: 18px; margin-bottom: 0; font-weight: 700; }
.header h1 a { text-decoration: none; color: #111; }
.header nav { display: flex; align-items: center; gap: 16px; }
.header nav a {
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    color: #555;
    transition: color .15s;
}
.header nav a:hover { color: #111; }
.nav-user-name { font-weight: 600; font-size: 14px; color: #111; }

/* --- Hamburger Menu --- */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 28px;
    height: 28px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
    z-index: 110;
}
.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: #333;
    border-radius: 1px;
    transition: transform .2s, opacity .2s;
}
.hamburger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.hamburger.active span:nth-child(2) {
    opacity: 0;
}
.hamburger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav Overlay */
.nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.4);
    z-index: 99;
}
.nav-overlay.active { display: block; }

/* Mobile Nav Menu */
.mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    right: -280px;
    width: 280px;
    height: 100%;
    background: #fff;
    z-index: 105;
    padding: 60px 24px 24px;
    box-shadow: -4px 0 20px rgba(0,0,0,0.1);
    transition: right .25s ease;
    overflow-y: auto;
}
.mobile-nav.active { right: 0; }

.mobile-nav a,
.mobile-nav .nav-user-name {
    display: block;
    padding: 14px 0;
    border-bottom: 1px solid #eee;
    color: #333;
    text-decoration: none;
    font-size: 15px;
}
.mobile-nav a:hover { color: #111; }
.mobile-nav .nav-user-name {
    font-weight: 600;
    color: #111;
    border-bottom: 1px solid #ddd;
    margin-bottom: 8px;
}

/* --- Responsive Header --- */
@media (max-width: 600px) {
    .header { padding: 12px 16px; }
    .header h1 { font-size: 15px; }
    .header nav { display: none; }
    .hamburger { display: flex; }
    .mobile-nav { display: block; }
}

/* --- Card --- */
.card {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 16px;
}

.card h3 { font-size: 18px; margin-bottom: 10px; }
.card .price { font-size: 24px; font-weight: 700; margin: 12px 0; color: #111; }

/* --- Form --- */
.form-group {
    margin-bottom: 18px;
}

.form-group > label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 14px;
    color: #333;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group input[type="url"],
.form-group input[type="tel"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    background: #fff;
    color: #222;
    transition: border-color .15s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #999;
}

.form-group textarea { resize: vertical; min-height: 80px; }
.form-group small { font-size: 12px; color: #888; display: block; margin-top: 5px; }

/* Radio / Checkbox label — override the block label style */
.form-group .choice-label {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 6px 0;
    font-weight: 400;
    font-size: 14px;
    color: #333;
    cursor: pointer;
}

.form-group .choice-label input[type="radio"],
.form-group .choice-label input[type="checkbox"] {
    width: auto;
    margin: 0;
    flex-shrink: 0;
}

/* Inline label override for radio/checkbox in rendered HTML (style attribute fallback) */
.form-group label[style*="font-weight:normal"],
.form-group label[style*="font-weight: normal"] {
    font-weight: 400 !important;
}

/* --- Buttons --- */
.btn {
    padding: 10px 22px;
    background: #111;
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    text-decoration: none;
    transition: background .15s;
}

.btn:hover { background: #333; }
.btn-secondary { background: #f2f2f2; color: #333; border: 1px solid #ddd; }
.btn-secondary:hover { background: #e8e8e8; }
.btn-danger { background: transparent; color: #c00; border: 1px solid #e0c0c0; }
.btn-danger:hover { background: #fef2f2; }
.btn-block { width: 100%; text-align: center; }
.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn-ghost { background: transparent; color: #888; }
.btn-ghost:hover { background: #f0f0f0; color: #333; }

/* --- Plan Grid --- */
.plan-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

/* --- Nav Links --- */
.nav-links { margin-top: 16px; }
.nav-links a {
    margin-right: 16px;
    font-size: 14px;
    color: #666;
    text-decoration: none;
}
.nav-links a:hover { color: #111; text-decoration: underline; }

/* --- Table --- */
table { width: 100%; border-collapse: collapse; }
table th, table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid #eee;
    font-size: 13px;
}
table th {
    background: #fafafa;
    color: #666;
    font-weight: 600;
    border-bottom: 1px solid #e0e0e0;
}

/* --- Pagination --- */
.pagination { display: flex; gap: 4px; justify-content: center; margin-top: 20px; }
.page-btn {
    padding: 6px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    background: #fff;
    cursor: pointer;
    font-size: 13px;
    transition: background .15s;
}
.page-btn:hover { background: #f0f0f0; }
.page-btn.active { background: #111; color: #fff; border-color: #111; }

/* --- Messages --- */
.error-message { color: #c00; font-size: 14px; margin-top: 10px; }
.success-message { color: #28a745; font-size: 14px; margin-top: 10px; }

/* --- Footer --- */
footer {
    border-top: 1px solid #e0e0e0;
    padding: 14px 20px;
    text-align: center;
    font-size: 12px;
    color: #999;
    background: #fff;
    flex-shrink: 0;
}

footer a {
    color: #999;
    margin: 0 12px;
    text-decoration: none;
}
footer a:hover { color: #333; text-decoration: underline; }

/* プラン一覧: フッター固定 */
body.footer-fixed { padding-bottom: 52px; }
body.footer-fixed footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 100;
}

/* --- Dashboard Cards (shared) --- */
.dash-card {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 16px;
}

.dash-card-title {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: #888;
    margin-bottom: 16px;
}

/* --- Plan Card Meta --- */
.plan-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
    flex-wrap: wrap;
}

.plan-name { font-size: 18px; font-weight: 700; color: #111; }

.plan-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}
.badge-active   { background: #111; color: #fff; }
.badge-trialing { background: #e0e0e0; color: #333; }
.badge-cancel   { background: #fff; color: #999; border: 1px solid #ccc; }
.badge-pastdue  { background: #f5f5f5; color: #666; }

.plan-meta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 20px;
}

.meta-label { font-size: 12px; color: #999; margin-bottom: 4px; }
.meta-value { font-size: 16px; font-weight: 600; color: #222; }

.plan-actions {
    margin-top: 20px;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* --- Answer Rows --- */
.answer-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 10px 0;
    border-bottom: 1px solid #f0f0f0;
}
.answer-row:last-child { border-bottom: none; }
.answer-label { font-size: 13px; color: #666; flex-shrink: 0; min-width: 100px; }
.answer-value { font-size: 14px; color: #222; text-align: right; word-break: break-word; }
.answer-carried { font-size: 11px; color: #999; font-style: italic; }

.answers-plan-title {
    font-size: 15px;
    font-weight: 600;
    color: #333;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid #eee;
}

/* --- Edit Form Toggle --- */
.edit-form { margin-top: 12px; display: none; }
.edit-form.open { display: block; }

.edit-form .form-group { margin-bottom: 14px; }
.edit-form .form-group > label {
    font-size: 13px;
    font-weight: 500;
    color: #555;
    margin-bottom: 6px;
}
.edit-form input,
.edit-form textarea,
.edit-form select {
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 14px;
}
.edit-form textarea { min-height: 60px; }

/* --- History Table --- */
.history-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 12px;
    font-size: 13px;
}
.history-table th {
    background: #fafafa;
    color: #666;
    font-weight: 600;
    padding: 8px 10px;
    text-align: left;
    border-bottom: 1px solid #e0e0e0;
}
.history-table td {
    padding: 8px 10px;
    border-bottom: 1px solid #f0f0f0;
    color: #333;
    background: #fff;
}

/* --- History Tabs & Timeline --- */
.history-tabs {
    display: flex;
    gap: 0;
    flex-wrap: wrap;
    margin-bottom: 16px;
    border-bottom: 2px solid #e0e0e0;
}

.history-tab {
    padding: 8px 16px;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    background: none;
    color: #888;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all .15s;
    white-space: nowrap;
}

.history-tab:hover {
    color: #333;
    background: #f8f8f8;
}

.history-tab.active {
    color: #111;
    font-weight: 700;
    border-bottom-color: #111;
    background: none;
}

.history-panel {
    display: none;
}

.history-panel.active {
    display: block;
}

.history-timeline {
    position: relative;
    padding-left: 20px;
}

.history-timeline::before {
    content: '';
    position: absolute;
    left: 6px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: #e0e0e0;
}

.tl-row {
    position: relative;
    padding: 8px 0 16px 16px;
}

.tl-row:last-child {
    padding-bottom: 4px;
}

.tl-dot {
    position: absolute;
    left: -18px;
    top: 12px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ccc;
    border: 2px solid #fff;
    box-shadow: 0 0 0 1px #ccc;
}

.tl-current .tl-dot {
    background: #111;
    box-shadow: 0 0 0 1px #111;
}

.tl-content {
    display: flex;
    align-items: baseline;
    gap: 10px;
    flex-wrap: wrap;
}

.tl-date {
    font-size: 12px;
    color: #999;
    min-width: 130px;
    flex-shrink: 0;
}

.tl-value {
    font-size: 14px;
    font-weight: 600;
    color: #222;
    word-break: break-word;
}

.tl-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 600;
    background: #f0f0f0;
    color: #888;
    margin-left: 4px;
}

.tl-current .tl-badge {
    background: #111;
    color: #fff;
}

/* --- Settings Grid --- */
.settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.settings-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    border: 1px solid #e8e8e8;
    border-radius: 10px;
    text-decoration: none;
    color: #333;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    background: #fff;
    transition: background .15s;
}
.settings-link:hover { background: #fafafa; }

.settings-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: #f2f2f2;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    flex-shrink: 0;
}

/* --- Dashboard Buttons --- */
.d-btn {
    padding: 8px 18px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: background .15s;
}
.d-btn-primary   { background: #111; color: #fff; }
.d-btn-primary:hover { background: #333; }
.d-btn-secondary { background: #f2f2f2; color: #333; }
.d-btn-secondary:hover { background: #e8e8e8; }
.d-btn-ghost     { background: transparent; color: #888; }
.d-btn-ghost:hover { background: #f5f5f5; color: #333; }
.d-btn-danger    { background: transparent; color: #c00; border: 1px solid #e0c0c0; }
.d-btn-danger:hover { background: #fef2f2; }
.d-btn-sm { padding: 6px 12px; font-size: 12px; }
.d-msg { font-size: 13px; margin-left: 8px; color: #28a745; }

/* --- Empty State --- */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: #999;
}
.empty-state p { margin-bottom: 16px; }
.empty-state a {
    display: inline-block;
    padding: 10px 24px;
    background: #111;
    color: #fff;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
}
.empty-state a:hover { background: #333; }

/* --- Danger Zone --- */
.danger-zone { border-color: #e8d0d0; }

/* --- Page Card (centered form pages) --- */
.page-card {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    padding: 32px;
    margin-top: 8px;
}

/* --- Responsive --- */
@media (max-width: 600px) {
    /* Layout */
    .plan-grid { grid-template-columns: 1fr; }
    .plan-meta { grid-template-columns: 1fr; gap: 10px; }
    .settings-grid { grid-template-columns: 1fr; }
    .container { padding: 20px 14px 28px; }
    .container-narrow { padding: 20px 14px 28px; }
    .page-card { padding: 20px 16px; }

    /* Typography */
    h1 { font-size: 22px; }
    h2 { font-size: 18px; }
    h3 { font-size: 16px; }

    /* Cards */
    .card { padding: 18px; border-radius: 10px; }
    .card h3 { font-size: 16px; }
    .card .price { font-size: 20px; }
    .dash-card { padding: 18px; border-radius: 10px; }

    /* Buttons */
    .btn { padding: 10px 18px; font-size: 13px; }
    .plan-actions { flex-direction: column; gap: 8px; }
    .plan-actions .btn { width: 100%; }

    /* Tables */
    table { font-size: 12px; }
    table th, table td { padding: 8px 6px; }

    /* History */
    .history-tabs { overflow-x: auto; flex-wrap: nowrap; -webkit-overflow-scrolling: touch; }
    .history-tab { padding: 6px 12px; font-size: 12px; flex-shrink: 0; }
    .tl-content { flex-direction: column; gap: 2px; }
    .tl-date { min-width: auto; }

    /* Answer Rows */
    .answer-row { flex-direction: column; gap: 4px; align-items: flex-start; }
    .answer-value { text-align: left; }

    /* Footer */
    footer { padding: 12px 16px; }
    footer a { margin: 0 8px; font-size: 11px; }

    /* Inline grids in forms */
    div[style*="grid-template-columns: 1fr 1fr"],
    div[style*="grid-template-columns:1fr 1fr"] {
        display: block !important;
    }
    div[style*="grid-template-columns: 1fr 1fr"] > *,
    div[style*="grid-template-columns:1fr 1fr"] > * {
        margin-bottom: 12px;
    }
}

/* 更に小さい画面 */
@media (max-width: 400px) {
    .header { padding: 10px 12px; }
    .header h1 { font-size: 14px; }
    .container { padding: 16px 12px 24px; }
    .container-narrow { padding: 16px 12px 24px; }
    .page-card { padding: 18px 14px; }
    h1 { font-size: 20px; }
    h2 { font-size: 16px; }
    .card { padding: 14px; }
    .card .price { font-size: 18px; }
    .btn { padding: 9px 14px; font-size: 13px; }
    .settings-link { padding: 12px 14px; font-size: 13px; }
    .settings-icon { width: 28px; height: 28px; font-size: 14px; }
    footer a { margin: 0 6px; font-size: 10px; }
    .mobile-nav { width: 260px; right: -260px; padding: 50px 20px 20px; }
    .mobile-nav a,
    .mobile-nav .nav-user-name { padding: 12px 0; font-size: 14px; }
}