:root{--bg-color: #0f172a;--bg-surface: #1e293b;--bg-surface-hover: #334155;--text-main: #f8fafc;--text-muted: #94a3b8;--primary: #3b82f6;--primary-hover: #2563eb;--danger: #ef4444;--danger-hover: #dc2828;--border-color: #334155;--font-sans: "Inter", -apple-system, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-color);color:var(--text-main);line-height:1.5;-webkit-font-smoothing:antialiased}.app-container{display:flex;flex-direction:column;min-height:100vh}.app-header{padding:1rem 2rem;background:#1e293b80;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border-color);display:flex;align-items:baseline;gap:1rem}.logo{font-size:1.5rem;font-weight:800;background:linear-gradient(135deg,#60a5fa,#c084fc);-webkit-background-clip:text;color:transparent;letter-spacing:-.5px}.tagline{color:var(--text-muted);font-size:.9rem}.app-main{flex:1;padding:2rem}button{font-family:inherit;cursor:pointer;border:none;border-radius:6px;font-weight:600;transition:all .2s ease}.btn-primary{background-color:var(--primary);color:#fff;padding:.6rem 1.2rem;font-size:.95rem}.btn-primary:hover:not(:disabled){background-color:var(--primary-hover);transform:translateY(-1px)}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{background-color:transparent;color:var(--text-main);border:1px solid var(--border-color);padding:.6rem 1.2rem}.btn-secondary:hover{background-color:var(--bg-surface-hover)}.btn-danger{background-color:transparent;color:var(--danger);border:1px solid var(--danger);padding:.6rem 1.2rem}.btn-danger:hover{background-color:var(--danger);color:#fff}.icon-btn{background:transparent;color:var(--text-muted);font-size:1.25rem;width:28px;height:28px;display:flex;align-items:center;justify-content:center;border-radius:4px}.icon-btn:hover{background-color:var(--bg-surface-hover);color:var(--text-main)}.icon-btn.danger:hover{background-color:#ef44441a;color:var(--danger)}.home-container{max-width:600px;margin:4rem auto;text-align:center}.hero h1{font-size:3rem;margin-bottom:1rem;letter-spacing:-1px}.hero p{color:var(--text-muted);font-size:1.1rem;margin-bottom:3rem}.create-board-form{display:flex;gap:1rem;background:var(--bg-surface);padding:.5rem;border-radius:8px;border:1px solid var(--border-color);box-shadow:0 4px 20px #0003}.create-board-form input{flex:1;background:transparent;border:none;color:var(--text-main);font-size:1.1rem;padding:.5rem 1rem;outline:none}.board-container{max-width:1400px;margin:0 auto}.board-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:2rem}.board-title{font-size:2rem;margin-bottom:.25rem}.board-meta{color:var(--text-muted);font-size:.9rem}.board-meta .divider{margin:0 .5rem;opacity:.5}.board-actions{display:flex;gap:1rem}.kanban-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}.kanban-column{background:var(--bg-surface);border-radius:12px;padding:1.25rem;border:1px solid var(--border-color);display:flex;flex-direction:column;height:calc(100vh - 220px)}.column-title{font-size:1.1rem;font-weight:600;margin-bottom:1.5rem;display:flex;align-items:center;gap:.5rem}.task-count{background:var(--bg-color);padding:.1rem .6rem;border-radius:999px;font-size:.8rem;color:var(--text-muted)}.task-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:1rem;padding-right:.25rem}.empty-column{padding:2rem;text-align:center;color:var(--text-muted);border:2px dashed var(--border-color);border-radius:8px;font-size:.9rem}.task-card{background:var(--bg-color);border:1px solid var(--border-color);border-radius:8px;padding:1rem;transition:transform .2s,box-shadow .2s}.task-card:hover{transform:translateY(-2px);box-shadow:0 4px 12px #0000004d;border-color:var(--bg-surface-hover)}.task-header{display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;margin-bottom:.5rem}.task-title{font-size:1rem;font-weight:500;line-height:1.4}.task-desc{color:var(--text-muted);font-size:.9rem;margin-bottom:1rem;line-height:1.5}.task-footer{display:flex;justify-content:space-between;align-items:center;margin-top:1rem}.status-dropdown{background:var(--bg-surface);color:var(--text-main);border:1px solid var(--border-color);padding:.3rem .6rem;border-radius:4px;font-size:.8rem;outline:none;cursor:pointer}.task-date{font-size:.8rem;color:var(--text-muted)}.modal-overlay{position:fixed;inset:0;background:#0f172acc;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:50}.modal-content{background:var(--bg-surface);border:1px solid var(--border-color);border-radius:12px;padding:2rem;width:100%;max-width:500px;box-shadow:0 20px 40px #0006}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.form-group{margin-bottom:1.5rem}.form-group label{display:block;font-size:.9rem;color:var(--text-muted);margin-bottom:.5rem}.form-group input,.form-group textarea{width:100%;background:var(--bg-color);border:1px solid var(--border-color);border-radius:6px;padding:.8rem;color:var(--text-main);outline:none;font-family:inherit}.form-group input:focus,.form-group textarea:focus{border-color:var(--primary)}.modal-actions{display:flex;justify-content:flex-end;gap:1rem;margin-top:2rem}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--bg-surface-hover);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--border-color)}