:root{--bg:#ffffff;--fg:#1a1a1a;--muted:#6b7280;--border:#e5e7eb;--accent:#2563eb;--accent-fg:#ffffff;--danger:#dc2626}*{box-sizing:border-box}body,html{margin:0;height:100%;background:var(--bg);color:var(--fg);font-family:system-ui,-apple-system,Segoe UI,sans-serif}body.no-overscroll,html.no-overscroll{overscroll-behavior:none}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}.btn{padding:6px 12px;border:1px solid var(--border);border-radius:6px;background:#fff}.btn:hover{background:#f3f4f6}.btn-primary{background:var(--accent);color:var(--accent-fg);border-color:var(--accent)}.btn-primary:hover{background:#1d4ed8}.btn-danger{color:var(--danger)}.btn:disabled{opacity:.6;cursor:default}@media (max-width:767px){input,select,textarea{font-size:16px}.btn{min-height:44px}}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(1200px 600px at 50% -10%,#dbeafe 0,#f8fafc 60%,#ffffff 100%)}.login-card{width:100%;max-width:400px;padding:40px 32px 28px;background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:0 12px 40px rgba(15,23,42,.08);text-align:center}.login-mark{display:block;margin:0 auto 16px}.login-card h1{margin:0 0 6px;font-size:26px;letter-spacing:-.01em}.login-lead{margin:0 0 24px;color:var(--muted)}.login-form{display:flex;flex-direction:column;gap:12px;align-items:stretch}.login-google{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:44px;padding:0 16px;border:1px solid var(--border);border-radius:10px;background:#fff;color:var(--fg);font-weight:600;font-size:15px;cursor:pointer}.login-google:hover{background:#f8fafc;border-color:#cbd5e1}.login-google:disabled{opacity:.7;cursor:default}.login-error{margin:0 0 12px;padding:10px 12px;border-radius:8px;background:#fef2f2;color:var(--danger);font-size:14px}.login-note{margin:20px 0 0;font-size:12px;color:var(--muted)}@media (max-width:479px){.login-page{padding:16px}.login-card{padding:28px 20px 20px}}.dialog-head{display:flex;align-items:center;justify-content:space-between;gap:8px}.dialog-head h2{margin:0}.dialog-close{min-width:36px}@media (max-width:767px){.settings-backdrop>.settings-dialog,.share-backdrop>.share-dialog{position:fixed;inset:0;width:auto;max-width:none;height:auto;max-height:none;border-radius:0;padding:calc(12px + env(safe-area-inset-top, 0px)) 16px calc(12px + env(safe-area-inset-bottom, 0px))}.dialog-head{min-height:44px}.dialog-close,.settings-actions .btn,.share-actions .btn{min-height:44px;min-width:44px}.share-dialog .share-link{flex-wrap:wrap}.share-dialog .share-link input{flex:1 1 100%}.settings-list li,.share-people li{min-height:44px}.settings-dialog .settings-split{flex-direction:column}.settings-dialog .settings-nav{width:auto;flex-direction:row;overflow-x:auto;border-right:0;border-bottom:1px solid var(--border);padding:8px 0}.settings-dialog .settings-nav-item{flex:0 0 auto;white-space:nowrap;min-height:44px}.settings-backdrop>.settings-dialog>.dialog-head{padding:0 0 8px}.settings-dialog .settings-content{padding:16px 0 0}}