:root{--color-bg:#f4f6fb;--color-surface:#fff;--color-surface-alt:#f0f2f7;--color-overlay:#0f172a0a;--color-text:#111827;--color-text-muted:#4b5563;--color-text-subtle:#6b7280;--color-text-inverse:#fff;--color-primary:#2563eb;--color-primary-hover:#1d4ed8;--color-primary-active:#1e40af;--color-on-primary:#fff;--color-border:#d1d5db;--color-border-strong:#9ca3af;--color-divider:#e5e7eb;--color-danger:#b91c1c;--color-danger-bg:#fef2f2;--color-danger-border:#f1b0b0;--color-focus-ring:#1d4ed8;--input-bg:#fff;--input-border:#c2c8d2;--input-border-hover:#9aa3b2;--input-border-focus:var(--color-primary);--input-placeholder:#8b93a1;--btn-secondary-bg:#fff;--btn-secondary-border:#c2c8d2;--btn-secondary-text:#1f2937;--btn-secondary-hover-bg:#f3f4f6;--btn-ghost-hover-bg:#0f172a0f;--shadow-card:0 1px 2px #0f172a0f, 0 12px 28px -8px #0f172a2e;--shadow-focus:0 0 0 4px #2563eb2e;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-pill:999px;--font-sans:"Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji", sans-serif;--font-size-xs:.8125rem;--font-size-sm:.875rem;--font-size-md:1rem;--font-size-lg:1.25rem;--font-size-xl:1.75rem;--line-tight:1.2;--line-normal:1.5;--space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-7:2rem;--space-8:2.5rem;--transition-fast:.12s ease;--transition-base:.18s ease;--card-max-width:26rem;--control-height:2.875rem}[data-theme=dark]{--color-bg:#0b1120;--color-surface:#151c2c;--color-surface-alt:#1c2436;--color-overlay:#ffffff0d;--color-text:#f3f5fa;--color-text-muted:#c0c7d4;--color-text-subtle:#98a1b3;--color-text-inverse:#0b1120;--color-primary:#60a5fa;--color-primary-hover:#7cb4fb;--color-primary-active:#93c2fc;--color-on-primary:#0b1120;--color-border:#313a4f;--color-border-strong:#475066;--color-divider:#283146;--color-danger:#fca5a5;--color-danger-bg:#2a1416;--color-danger-border:#7f3a3a;--color-focus-ring:#93c2fc;--input-bg:#0f1626;--input-border:#3a445b;--input-border-hover:#4d5869;--input-border-focus:var(--color-primary);--input-placeholder:#7b8597;--btn-secondary-bg:#1c2436;--btn-secondary-border:#3a445b;--btn-secondary-text:#e7eaf1;--btn-secondary-hover-bg:#232c41;--btn-ghost-hover-bg:#ffffff14;--shadow-card:0 1px 2px #0006, 0 18px 40px -12px #0009;--shadow-focus:0 0 0 4px #60a5fa47}@media (prefers-color-scheme:dark){:root:not([data-theme=light]):not([data-theme=dark]){--color-bg:#0b1120;--color-surface:#151c2c;--color-surface-alt:#1c2436;--color-overlay:#ffffff0d;--color-text:#f3f5fa;--color-text-muted:#c0c7d4;--color-text-subtle:#98a1b3;--color-text-inverse:#0b1120;--color-primary:#60a5fa;--color-primary-hover:#7cb4fb;--color-primary-active:#93c2fc;--color-on-primary:#0b1120;--color-border:#313a4f;--color-border-strong:#475066;--color-divider:#283146;--color-danger:#fca5a5;--color-danger-bg:#2a1416;--color-danger-border:#7f3a3a;--color-focus-ring:#93c2fc;--input-bg:#0f1626;--input-border:#3a445b;--input-border-hover:#4d5869;--input-border-focus:var(--color-primary);--input-placeholder:#7b8597;--btn-secondary-bg:#1c2436;--btn-secondary-border:#3a445b;--btn-secondary-text:#e7eaf1;--btn-secondary-hover-bg:#232c41;--btn-ghost-hover-bg:#ffffff14;--shadow-card:0 1px 2px #0006, 0 18px 40px -12px #0009;--shadow-focus:0 0 0 4px #60a5fa47}}.auth-layout{min-height:100svh;padding:var(--space-6);background:var(--color-bg);color:var(--color-text);font-family:var(--font-sans);justify-content:center;align-items:center;display:flex}.login-card{width:100%;max-width:var(--card-max-width);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:var(--space-7)}.login-card__header{justify-content:space-between;align-items:flex-start;gap:var(--space-4);margin-bottom:var(--space-6);display:flex}.login-card__title{font-size:var(--font-size-xl);line-height:var(--line-tight);color:var(--color-text);margin:0}.login-card__subtitle{margin:var(--space-2) 0 0;color:var(--color-text-subtle);font-size:var(--font-size-sm)}.login-card__body{flex-direction:column;display:flex}.muted{color:var(--color-text-muted);font-size:var(--font-size-sm);line-height:var(--line-normal)}.login-form{gap:var(--space-5);flex-direction:column;display:flex}.login-form__fields{gap:var(--space-4);flex-direction:column;display:flex}.login-form__meta{justify-content:space-between;align-items:center;gap:var(--space-3);flex-wrap:wrap;display:flex}.login-form__forgot,.login-form__footer-link{color:var(--color-primary);font-size:var(--font-size-sm);text-decoration:none}.login-form__forgot:hover,.login-form__footer-link:hover{text-decoration:underline}.login-form__footer{text-align:center;color:var(--color-text-subtle);font-size:var(--font-size-sm);margin:0}.alert{background:var(--color-danger-bg);border:1px solid var(--color-danger-border);color:var(--color-danger);border-radius:var(--radius-sm);padding:var(--space-3) var(--space-4);font-size:var(--font-size-sm)}.field{gap:var(--space-2);flex-direction:column;display:flex}.field__label-row{justify-content:space-between;align-items:center;gap:var(--space-3);display:flex}.field__label{font-size:var(--font-size-sm);color:var(--color-text-muted);font-weight:500}.field__control{align-items:center;display:flex;position:relative}.field__input{width:100%;height:var(--control-height);box-sizing:border-box;padding:0 var(--space-4);background:var(--input-bg);border:1px solid var(--input-border);border-radius:var(--radius-sm);color:var(--color-text);font-size:var(--font-size-md);transition:border-color var(--transition-fast), box-shadow var(--transition-fast)}.field__input::placeholder{color:var(--input-placeholder)}.field__input:hover{border-color:var(--input-border-hover)}.field__input:focus{border-color:var(--input-border-focus);box-shadow:var(--shadow-focus);outline:none}.field__input--has-affix{padding-right:2.75rem}.field__input--error{border-color:var(--color-danger)}.field__affix{right:var(--space-2);width:2rem;height:2rem;color:var(--color-text-subtle);cursor:pointer;border-radius:var(--radius-sm);background:0 0;border:none;justify-content:center;align-items:center;padding:0;display:inline-flex;position:absolute}.field__affix:hover{color:var(--color-text);background:var(--btn-ghost-hover-bg)}.field__affix svg{width:1.25rem;height:1.25rem}.field__error{color:var(--color-danger);font-size:var(--font-size-xs);margin:0}.btn{justify-content:center;align-items:center;gap:var(--space-2);height:var(--control-height);padding:0 var(--space-5);border-radius:var(--radius-sm);font-size:var(--font-size-md);cursor:pointer;transition:background var(--transition-fast), border-color var(--transition-fast);border:1px solid #0000;font-family:inherit;font-weight:600;text-decoration:none;display:inline-flex}.btn--full-width{width:100%}.btn--primary{background:var(--color-primary);color:var(--color-on-primary)}.btn--primary:hover:not(:disabled){background:var(--color-primary-hover)}.btn--secondary{background:var(--btn-secondary-bg);border-color:var(--btn-secondary-border);color:var(--btn-secondary-text)}.btn--secondary:hover:not(:disabled){background:var(--btn-secondary-hover-bg)}.btn--ghost{color:var(--color-text);background:0 0}.btn--ghost:hover:not(:disabled){background:var(--btn-ghost-hover-bg)}.btn:disabled{opacity:.6;cursor:not-allowed}.btn:focus-visible{box-shadow:var(--shadow-focus);outline:none}.btn__spinner{border:2px solid;border-top-color:#0000;border-radius:50%;width:1rem;height:1rem;animation:.6s linear infinite btn-spin}@keyframes btn-spin{to{transform:rotate(360deg)}}.divider{align-items:center;gap:var(--space-3);color:var(--color-text-subtle);font-size:var(--font-size-xs);display:flex}.divider__line{border:none;border-top:1px solid var(--color-divider);flex:1;height:0}.oauth-buttons{gap:var(--space-3);flex-direction:column;display:flex}.oauth-buttons__icon{width:1.25rem;height:1.25rem}.save-session{align-items:center;gap:var(--space-3);display:flex}.save-session__select{height:2.25rem;padding:0 var(--space-2);background:var(--input-bg);border:1px solid var(--input-border);border-radius:var(--radius-sm);color:var(--color-text);font-size:var(--font-size-sm)}.checkbox{align-items:center;gap:var(--space-2);font-size:var(--font-size-sm);color:var(--color-text-muted);cursor:pointer;display:inline-flex}.checkbox--inline{gap:var(--space-1)}.checkbox__input{width:1rem;height:1rem;accent-color:var(--color-primary);cursor:pointer}.theme-toggle{border:1px solid var(--color-border);border-radius:var(--radius-sm);width:2.25rem;height:2.25rem;color:var(--color-text-muted);cursor:pointer;background:0 0;justify-content:center;align-items:center;display:inline-flex}.theme-toggle:hover{background:var(--btn-ghost-hover-bg);color:var(--color-text)}.theme-toggle svg{width:1.25rem;height:1.25rem}:root{font-family:var(--font-sans,system-ui, sans-serif);color:var(--color-text,#111827);background:var(--color-bg,#f4f6fb)}*{box-sizing:border-box}body{background:var(--color-bg,#f4f6fb);min-height:100svh;color:var(--color-text,#111827);margin:0}#root{min-height:100svh}.app{background:var(--color-surface,#fff);border:1px solid var(--color-border,#e3e5e8);border-radius:var(--radius-lg,16px);width:100%;max-width:520px;padding:var(--space-7,2rem);box-shadow:var(--shadow-card);margin:48px auto}.todo-header{justify-content:space-between;align-items:flex-start;gap:var(--space-4,1rem);margin-bottom:var(--space-5,1.25rem);flex-wrap:wrap;display:flex}.todo-header__actions{justify-content:flex-end;align-items:center;gap:var(--space-3,.75rem);flex-wrap:nowrap;display:flex}.btn{white-space:nowrap}.app h1{font-size:var(--font-size-xl,1.75rem);margin:0}.note{margin:var(--space-1,.25rem) 0 0;color:var(--color-text-subtle,#6b7280);font-size:var(--font-size-sm,.875rem)}.error{color:var(--color-danger,#b91c1c);font-size:var(--font-size-sm,.875rem)}.add{gap:var(--space-2,.5rem);margin:var(--space-5,1.25rem) 0;display:flex}.add input{height:var(--control-height,2.875rem);padding:0 var(--space-4,1rem);border:1px solid var(--input-border,#c2c8d2);border-radius:var(--radius-sm,8px);background:var(--input-bg,#fff);color:var(--color-text,#111827);font-size:var(--font-size-md,1rem);flex:1}.add input:focus{border-color:var(--input-border-focus,#2563eb);box-shadow:var(--shadow-focus);outline:none}.todos{gap:var(--space-2,.5rem);flex-direction:column;margin:0;padding:0;list-style:none;display:flex}.todos li{align-items:center;gap:var(--space-3,.75rem);padding:var(--space-3,.75rem) var(--space-4,1rem);border:1px solid var(--color-divider,#ececf0);border-radius:var(--radius-sm,8px);display:flex}.todos li .title{flex:1}.todos li.completed .title{color:var(--color-text-subtle,#9ca3af);text-decoration:line-through}.todos li .delete{color:var(--color-danger,#b91c1c);min-height:44px;padding:0 var(--space-3,.75rem);font-size:var(--font-size-sm,.875rem);cursor:pointer;border-radius:var(--radius-sm,8px);background:0 0;border:none;align-items:center;display:inline-flex}.todos li .delete:hover{background:var(--color-danger-bg,#fee2e2)}.todos li .delete:focus-visible{outline:2px solid var(--color-focus-ring,#1d4ed8);outline-offset:2px}.empty{color:var(--color-text-subtle,#9ca3af);justify-content:center;border-style:dashed!important}.todos li .check{min-width:44px;min-height:44px;margin-left:calc(-1 * var(--space-4,1rem));margin-right:calc(-1 * var(--space-3,.75rem));cursor:pointer;flex:none;justify-content:center;align-items:center;display:inline-flex}input[type=checkbox]{width:18px;height:18px;accent-color:var(--color-primary,#2563eb);cursor:pointer}.admin{width:100%;max-width:880px;padding:0 var(--space-4,1rem);margin:48px auto}.admin h1{font-size:var(--font-size-xl,1.75rem);margin:0}.admin-panel{background:var(--color-surface,#fff);border:1px solid var(--color-border,#e3e5e8);border-radius:var(--radius-lg,16px);padding:var(--space-6,1.5rem);margin-bottom:var(--space-5,1.25rem);box-shadow:var(--shadow-card)}.admin-panel h2{margin:0 0 var(--space-4,1rem);font-size:var(--font-size-lg,1.25rem)}.admin-panel__head{justify-content:space-between;align-items:center;gap:var(--space-4,1rem);display:flex}.admin-panel__head h2{margin:0}.admin-panel__actions{margin-top:var(--space-4,1rem)}.admin-create{gap:var(--space-2,.5rem);flex-wrap:wrap;display:flex}.admin-credential{margin-top:var(--space-4,1rem);padding:var(--space-4,1rem);border:1px solid var(--color-primary,#2563eb);border-radius:var(--radius-sm,8px);background:var(--color-surface-alt,#f0f2f7)}.admin-credential p{margin:0 0 var(--space-2,.5rem)}.admin-credential code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:var(--font-size-md,1rem);background:var(--color-overlay,#0f172a0f);border-radius:4px;padding:2px 6px;font-weight:600}.admin-credential__actions{gap:var(--space-2,.5rem);display:flex}.admin-create input{height:var(--control-height,2.875rem);padding:0 var(--space-4,1rem);border:1px solid var(--input-border,#c2c8d2);border-radius:var(--radius-sm,8px);background:var(--input-bg,#fff);color:var(--color-text,#111827);font-size:var(--font-size-md,1rem);flex:12rem}.admin-form{gap:var(--space-3,.75rem);margin-top:var(--space-4,1rem);flex-direction:column;display:flex}.admin-field{gap:var(--space-1,.25rem);font-size:var(--font-size-sm,.875rem);color:var(--color-text-subtle,#6b7280);flex-direction:column;display:flex}.admin-field input{height:var(--control-height,2.875rem);padding:0 var(--space-4,1rem);border:1px solid var(--input-border,#c2c8d2);border-radius:var(--radius-sm,8px);background:var(--input-bg,#fff);color:var(--color-text,#111827);font-size:var(--font-size-md,1rem)}.admin-check{align-items:center;gap:var(--space-2,.5rem);font-size:var(--font-size-md,1rem);color:var(--color-text,#111827);display:flex}.admin-table{border-collapse:collapse;width:100%;font-size:var(--font-size-sm,.875rem)}.admin-table th,.admin-table td{text-align:left;padding:var(--space-3,.75rem) var(--space-3,.75rem);border-bottom:1px solid var(--color-divider,#e5e7eb);vertical-align:middle}.admin-table th{color:var(--color-text-subtle,#6b7280);font-weight:600}.admin-table__actions{gap:var(--space-2,.5rem);flex-wrap:wrap;justify-content:flex-start;display:flex}.admin-table .btn{min-height:44px;padding:0 var(--space-3,.75rem);font-size:var(--font-size-sm,.875rem)}:root{--color-danger-solid:#b91c1c;--color-danger-solid-hover:#991b1b;--color-on-danger:#fff}[data-theme=dark]{--color-danger-solid:#dc2626;--color-danger-solid-hover:#b91c1c}@media (prefers-color-scheme:dark){:root:not([data-theme=light]):not([data-theme=dark]){--color-danger-solid:#dc2626;--color-danger-solid-hover:#b91c1c}}.btn--danger{background:var(--color-danger-solid,#b91c1c);border:1px solid var(--color-danger-solid,#b91c1c);color:var(--color-on-danger,#fff)}.btn--danger:hover{background:var(--color-danger-solid-hover,#991b1b);border-color:var(--color-danger-solid-hover,#991b1b)}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.001ms!important;animation-duration:.001ms!important;animation-iteration-count:1!important}}