:root{color-scheme:dark;--color-bg: #0d1017;--color-surface: #151a23;--color-raised: #1c2230;--color-raised-hover: #232a38;--color-field: #0f131b;--color-border: #2a3242;--color-border-control: #69748a;--color-text: #e6eaf2;--color-text-muted: #9aa5ba;--color-accent: #6ea8fe;--color-accent-strong: #8fc0ff;--color-accent-ink: #0d1017;--color-focus: #8ab4ff;--color-danger: #ff9d9d;--color-danger-border: #a35862;--color-danger-surface: #2f191d;--color-danger-strong: #ffc4c4;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.5rem;--space-6: 2rem;--space-7: 3rem;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--radius-pill: 999px;--control-size: 2.75rem;--control-size-compact: 2.25rem;--font-sans: ui-sans-serif, system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--shadow-panel: 0 1px 2px rgb(0 0 0 / .4);--shadow-lifted: 0 8px 24px rgb(0 0 0 / .45);--transition: .14s ease;font-family:var(--font-sans);font-size:16px;line-height:1.5}*,*:before,*:after{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--color-bg);color:var(--color-text);-webkit-font-smoothing:antialiased}h1,h2,h3,p{margin:0;overflow-wrap:anywhere}:focus-visible{outline:2px solid var(--color-focus);outline-offset:2px;border-radius:var(--radius-sm)}@media(prefers-reduced-motion:reduce){*,*:before,*:after{transition-duration:0ms!important;animation-duration:0ms!important;animation-iteration-count:1!important}}button{font:inherit;min-height:var(--control-size);min-width:var(--control-size);padding:0 var(--space-4);border-radius:var(--radius-md);border:1px solid var(--color-border-control);background:var(--color-raised);color:var(--color-text);cursor:pointer;transition:background-color var(--transition),border-color var(--transition),color var(--transition)}button:hover:not(:disabled){background:var(--color-raised-hover);border-color:var(--color-accent)}button:disabled{opacity:.55;cursor:not-allowed}button[type=submit],.button-primary{border-color:var(--color-accent);background:var(--color-accent);color:var(--color-accent-ink);font-weight:600}button[type=submit]:hover:not(:disabled),.button-primary:hover:not(:disabled){background:var(--color-accent-strong);border-color:var(--color-accent-strong)}input,textarea{font:inherit;color:var(--color-text);background:var(--color-field);border:1px solid var(--color-border-control);border-radius:var(--radius-md);padding:var(--space-2) var(--space-3);min-height:var(--control-size);width:100%;transition:border-color var(--transition),background-color var(--transition)}textarea{resize:vertical;line-height:1.5}input::placeholder,textarea::placeholder{color:var(--color-text-muted)}input:hover,textarea:hover{border-color:var(--color-accent)}label{font-size:.8125rem;font-weight:600;letter-spacing:.01em;color:var(--color-text-muted)}.link-button{min-width:0;padding:0 var(--space-2);background:none;border-color:transparent;color:var(--color-accent-strong);text-decoration:underline;text-underline-offset:3px}.link-button:hover:not(:disabled){background:none;border-color:transparent;color:var(--color-text)}.form-error{color:var(--color-danger);font-size:.875rem}.skip-link{position:absolute;left:var(--space-2);top:var(--space-2);z-index:20;display:inline-flex;align-items:center;min-height:var(--control-size);padding:var(--space-2) var(--space-4);border-radius:var(--radius-md);background:var(--color-accent);color:var(--color-accent-ink);font-weight:600;text-decoration:none;transform:translateY(-200%);transition:transform var(--transition)}.skip-link:focus{transform:translateY(0)}.centered-screen{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:var(--space-4);padding:var(--space-5) var(--space-4)}.brand{display:flex;align-items:center;gap:var(--space-2);font-weight:700;letter-spacing:-.01em}.brand-mark{display:grid;place-items:center;width:1.75rem;height:1.75rem;border-radius:var(--radius-sm);background:var(--color-accent);color:var(--color-accent-ink);font-size:.875rem;font-weight:700}.auth-form{display:flex;flex-direction:column;gap:var(--space-2);width:min(24rem,100%);background:var(--color-surface);border:1px solid var(--color-border);padding:var(--space-5);border-radius:var(--radius-lg);box-shadow:var(--shadow-panel)}.auth-form h1{font-size:1.5rem;letter-spacing:-.02em}.auth-form .auth-hint{color:var(--color-text-muted);font-size:.875rem;margin-bottom:var(--space-2)}.auth-form label{margin-top:var(--space-2)}.auth-form button[type=submit]{margin-top:var(--space-4)}.auth-switch{display:flex;justify-content:center;margin-top:var(--space-1)}.app-header{position:sticky;top:0;z-index:10;background:#0d1017eb;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--color-border)}.app-header-inner{max-width:72rem;margin:0 auto;padding:var(--space-3) var(--space-4);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:var(--space-3)}.app-user{color:var(--color-text-muted);font-size:.875rem;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.app-header-account{display:flex;align-items:center;justify-content:flex-end;gap:var(--space-3);flex:1 1 auto;min-width:0}.app-header-account>button{flex-shrink:0}.board-page{max-width:72rem;margin:0 auto;padding:var(--space-5) var(--space-4) var(--space-7);display:flex;flex-direction:column;gap:var(--space-5)}.add-task-form{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:var(--space-3);background:var(--color-surface);border:1px solid var(--color-border);padding:var(--space-4);border-radius:var(--radius-lg);box-shadow:var(--shadow-panel)}.add-task-fields{display:flex;flex-direction:column;gap:var(--space-2);min-width:0}.add-task-form label{display:block}.add-task-form button[type=submit]{align-self:end}.add-task-form .form-error{grid-column:1 / -1}@media(max-width:40rem){.add-task-form{grid-template-columns:minmax(0,1fr)}.add-task-form button[type=submit]{align-self:stretch}}.board-columns{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-4);align-items:start}.board-column{display:flex;flex-direction:column;gap:var(--space-3);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-4);min-width:0}.board-column-heading{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2);font-size:.8125rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--color-text-muted)}.board-column-count{display:inline-grid;place-items:center;min-width:1.5rem;padding:0 var(--space-2);border-radius:var(--radius-pill);background:var(--color-raised);border:1px solid var(--color-border);color:var(--color-text);font-size:.75rem;letter-spacing:0}.board-column-empty{margin:0;padding:var(--space-4);border:1px dashed var(--color-border-control);border-radius:var(--radius-md);color:var(--color-text-muted);font-size:.875rem;text-align:center}.task-list{list-style:none;margin:0;padding:0;min-height:1.5rem;display:flex;flex-direction:column;gap:var(--space-3);border-radius:var(--radius-md);transition:background-color var(--transition),box-shadow var(--transition)}.task-list-drag-over{box-shadow:inset 0 0 0 2px var(--color-accent);background:#6ea8fe14}.task-card{display:flex;flex-direction:column;gap:var(--space-2);background:var(--color-raised);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-3);cursor:grab;transition:border-color var(--transition),box-shadow var(--transition),transform var(--transition)}.task-card:hover,.task-card:focus-within{border-color:var(--color-border-control);box-shadow:var(--shadow-lifted)}.task-card-dragging{opacity:.6;border-color:var(--color-accent);transform:rotate(-1deg);cursor:grabbing}.task-title{font-weight:600;letter-spacing:-.01em}.task-description{color:var(--color-text-muted);font-size:.875rem;white-space:pre-wrap}.task-actions{display:flex;flex-wrap:wrap;justify-content:space-between;gap:var(--space-2);margin-top:var(--space-1);padding-top:var(--space-2);border-top:1px solid var(--color-border)}.task-move-controls{display:flex;gap:0;border:1px solid var(--color-border-control);border-radius:var(--radius-md)}.task-edit-controls{display:flex;gap:var(--space-2)}.task-move-button,.task-edit-controls button{min-height:var(--control-size-compact);min-width:var(--control-size-compact);padding:0 var(--space-2);background:transparent;color:var(--color-text-muted);font-size:.8125rem}.task-move-button{border:0;border-left:1px solid var(--color-border);border-radius:0;font-size:.9375rem;line-height:1}.task-move-button:first-child{border-left:0;border-top-left-radius:var(--radius-md);border-bottom-left-radius:var(--radius-md)}.task-move-button:last-child{border-top-right-radius:var(--radius-md);border-bottom-right-radius:var(--radius-md)}.task-edit-controls button{display:inline-flex;align-items:center;gap:var(--space-2);border-color:var(--color-border-control)}.task-action-label{font-size:.8125rem;font-weight:600;white-space:nowrap}.task-edit-controls .task-delete-button{color:var(--color-danger);border-color:var(--color-danger-border)}.icon{display:block;width:1rem;height:1rem;flex:none}.task-move-button:hover:not(:disabled),.task-edit-button:hover:not(:disabled){color:var(--color-text);background:var(--color-raised-hover);border-color:var(--color-border-control)}.task-edit-controls .task-delete-button:hover:not(:disabled){color:var(--color-danger-strong);background:var(--color-danger-surface);border-color:var(--color-danger)}.task-edit-form{display:flex;flex-direction:column;gap:var(--space-2)}.task-edit-actions{display:flex;gap:var(--space-2);margin-top:var(--space-1)}.task-edit-actions button{flex:1;padding:0 var(--space-3)}.state-panel{display:flex;flex-direction:column;align-items:center;gap:var(--space-3);text-align:center;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-6) var(--space-4)}.state-panel-error{border-color:var(--color-danger)}.state-panel h2{font-size:1.125rem}.state-panel p{color:var(--color-text-muted);font-size:.9375rem;max-width:34rem}.state-icon{font-size:1.75rem;line-height:1}.skeleton-card{display:flex;flex-direction:column;gap:var(--space-2);background:var(--color-raised);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-3)}.skeleton-line{height:.75rem;border-radius:var(--radius-pill);background:linear-gradient(90deg,#232a38,#303950,#232a38);background-size:200% 100%;animation:skeleton-shimmer 1.4s linear infinite}.skeleton-line-short{width:55%}@keyframes skeleton-shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap}@media(max-width:60rem){.board-columns{grid-template-columns:minmax(0,1fr)}}@media(pointer:coarse),(max-width:60rem){:root{--control-size-compact: var(--control-size)}}@media(max-width:30rem){.app-header-inner{padding:var(--space-3)}.board-page{padding:var(--space-4) var(--space-3) var(--space-6)}.task-actions{row-gap:var(--space-3)}}