:root{color-scheme:light;--page-max-width: 1200px;--page-content-padding: 16px;--color-text: #1f2937;--color-text-muted: #4b5563;--color-bg: #fdfbf8;--color-surface: #fff;--color-surface-alt: #f7f3ed;--color-border: #e5e7eb;--color-success: #16a34a;--color-danger: #ef4444;--color-warning: #fb923c;--font-base: Noto Sans JP, Inter, Hiragino Sans, Yu Gothic, Meiryo, sans-serif;--radius-lg: 12px;--radius-xl: 16px;--shadow-soft: 0 24px 60px rgba(31, 41, 55, .08);--cls-color-1: #f78fb3;--cls-color-2: #8c7dff;--cls-color-3: #34c759;--cls-color-4: #4ec4eb;--cls-color-5: #fb7185;--cls-color-6: #fbbf24;--cls-color-7: #f97316;--cls-color-8: #8cc63f;--cls-color-9: #3b82f6;--cls-color-10: #1e40af;--cls-color-11: #f472b6;--cls-color-12: #94a3b8}:root{--card-rotation: .3deg}input[type=email],input[type=password]{width:100%;padding:14px 16px;border-radius:10px;border:1px solid #d1d5db;font-size:.95rem;transition:border-color .2s ease,box-shadow .2s ease;background:#fff}input[type=email]:focus,input[type=password]:focus{outline:none;border-color:var(--auth-accent);box-shadow:0 0 0 3px #1118271f}.password-meta{margin-top:12px;font-size:.85rem;color:#4b5563}.strength-gauge{display:flex;gap:6px;margin-top:10px}.strength-bar{flex:1;height:6px;border-radius:3px;background:#e5e7eb;transition:background-color .2s ease}.strength-weak .strength-bar[data-level="1"],.strength-weak .strength-bar[data-level="2"],.strength-weak .strength-bar[data-level="3"]{background:#f87171}.strength-medium .strength-bar[data-level="1"],.strength-medium .strength-bar[data-level="2"]{background:#fbbf24}.strength-medium .strength-bar[data-level="3"]{background:#e5e7eb}.strength-strong .strength-bar[data-level="1"],.strength-strong .strength-bar[data-level="2"],.strength-strong .strength-bar[data-level="3"]{background:#34d399}.strength-label{margin-top:8px;font-size:.85rem}.strength-label-weak{color:#f87171}.strength-label-medium{color:#f59e0b}.strength-label-strong{color:#10b981}.validation-message{margin-top:8px;font-size:.85rem;min-height:18px}.validation-message.error{color:#f87171}.validation-message.success{color:#10b981}button[type=submit]{margin-top:12px}button[type=submit][disabled]{background:#9ca3af;cursor:not-allowed}.terms-consent{margin-bottom:24px;font-size:.85rem;color:#4b5563}.terms-checkbox{display:flex;align-items:flex-start;gap:10px}.terms-checkbox input[type=checkbox]{margin-top:3px;width:18px;height:18px;accent-color:var(--auth-accent);cursor:pointer}.terms-checkbox span{line-height:1.5}.terms-checkbox a{color:var(--auth-accent);font-weight:600}.terms-checkbox a:hover{text-decoration:underline}.terms-links{margin-top:18px;text-align:center;font-size:.85rem;color:#6b7280}.terms-links a{color:var(--auth-accent);font-weight:600}.terms-links a:hover{text-decoration:underline}