:root{--bg:#111827;--bg-card:rgba(31,41,55,0.7);--bg-surface:#1f2937;--text:#f3f4f6;--text-muted:#9ca3af;--primary:#f43f5e;--secondary:#10b981;--tertiary:#3b82f6;--accent:var(--primary);--border:rgba(255,255,255,0.1);--radius:16px;--font:'Inter',sans-serif;--mono:'JetBrains Mono',monospace}
[data-theme="light"]{--bg:#f3f4f6;--bg-card:rgba(255,255,255,0.8);--bg-surface:#fff;--text:#111827;--text-muted:#4b5563;--border:rgba(0,0,0,0.1)}
.theme-pomodoro{--accent:var(--primary);--theme-bg:rgba(244,63,94,0.1)}.theme-shortBreak{--accent:var(--secondary);--theme-bg:rgba(16,185,129,0.1)}.theme-longBreak{--accent:var(--tertiary);--theme-bg:rgba(59,130,246,0.1)}
*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font);background:var(--bg);color:var(--text);min-height:100vh;transition:background-color 0.5s ease}
.bg-blur{position:fixed;inset:0;z-index:-1;background:var(--theme-bg);transition:background 0.5s ease}
.container{max-width:1000px;margin:0 auto;padding:0 1.5rem}
.navbar{padding:1rem 0;margin-bottom:1rem}.nav-inner{display:flex;justify-content:space-between;align-items:center}.brand{font-weight:700;font-size:1.2rem;color:var(--text);text-decoration:none}.nav-links{display:flex;gap:1rem;align-items:center}.nav-links a{color:var(--text-muted);text-decoration:none;font-size:0.9rem;font-weight:500;transition:color 0.2s}.nav-links a:hover{color:var(--text)}.kofi-link{color:#f43f5e!important}.icon-btn{background:none;border:none;cursor:pointer;font-size:1.2rem;opacity:0.7;transition:opacity 0.2s}.icon-btn:hover{opacity:1}.theme-btn{background:none;border:1px solid var(--border);border-radius:50%;width:36px;height:36px;cursor:pointer;display:flex;align-items:center;justify-content:center}
.main-layout{display:grid;grid-template-columns:1fr 340px;gap:2rem;align-items:start}@media(max-width:800px){.main-layout{grid-template-columns:1fr}}
.glass-card{background:var(--bg-card);backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem}
.mode-tabs{display:flex;justify-content:center;gap:0.5rem;margin-bottom:2rem;background:var(--bg-surface);padding:0.4rem;border-radius:100px;border:1px solid var(--border);width:fit-content;margin-left:auto;margin-right:auto}
.mode-btn{background:transparent;border:none;color:var(--text-muted);font-weight:600;font-family:var(--font);padding:0.5rem 1rem;border-radius:100px;cursor:pointer;transition:all 0.3s}.mode-btn.active{background:var(--accent);color:#fff}
.timer-display{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:3rem 2rem;position:relative;margin-bottom:2rem}
.progress-ring{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%) rotate(-90deg)}.progress-ring-circle{transition:stroke-dashoffset 0.1s linear,stroke 0.5s ease}
.time-readout{font-size:5rem;font-weight:700;font-family:var(--mono);line-height:1;z-index:2;color:var(--text)}
.current-task-display{margin-top:1.5rem;font-size:1rem;color:var(--text-muted);z-index:2;text-align:center}.current-task-display span{font-weight:600;color:var(--text)}
.timer-controls{display:flex;justify-content:center;gap:1rem;align-items:center}
.btn{font-family:var(--font);font-weight:600;border:none;border-radius:12px;cursor:pointer;transition:transform 0.1s,box-shadow 0.2s,background 0.5s}
.btn-primary{background:var(--text);color:var(--bg);box-shadow:0 4px 12px rgba(0,0,0,0.1)}.btn-primary:hover{transform:translateY(-2px)}
.btn-large{padding:1rem 3rem;font-size:1.25rem}
.btn-secondary{background:var(--bg-surface);color:var(--text);border:1px solid var(--border)}.icon-only{width:56px;height:56px;display:flex;align-items:center;justify-content:center;font-size:1.2rem}
.ambient-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.ambient-header h3{font-size:1rem;font-weight:600}
.vol-control{display:flex;align-items:center;gap:0.5rem;font-size:0.9rem}.vol-slider{width:80px;accent-color:var(--accent)}
.sound-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0.5rem}.sound-btn{background:var(--bg-surface);border:1px solid var(--border);color:var(--text-muted);padding:0.75rem 0.5rem;border-radius:8px;font-size:0.85rem;cursor:pointer;transition:all 0.2s}.sound-btn:hover{border-color:var(--accent)}.sound-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}
.task-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.task-header h3{font-size:1.1rem}.pomodoros-total{font-size:0.9rem;color:var(--text-muted);font-weight:600}
.task-form{display:flex;gap:0.5rem;margin-bottom:1.5rem}#taskInput{flex:1;background:var(--bg-surface);border:1px solid var(--border);color:var(--text);padding:0.75rem 1rem;border-radius:8px;font-family:var(--font);outline:none}#taskInput:focus{border-color:var(--accent)}
.est-input{width:60px;background:var(--bg-surface);border:1px solid var(--border);color:var(--text);padding:0.75rem 0.5rem;border-radius:8px;font-family:var(--mono);text-align:center;outline:none}.task-form .btn-primary{padding:0 1.2rem;border-radius:8px}
.task-list{list-style:none;max-height:400px;overflow-y:auto;padding-right:0.5rem}.task-list::-webkit-scrollbar{width:6px}.task-list::-webkit-scrollbar-thumb{background:var(--border);border-radius:6px}
.task-item{display:flex;align-items:flex-start;gap:0.75rem;padding:0.75rem;background:var(--bg-surface);border:1px solid transparent;border-bottom-color:var(--border);border-radius:8px;margin-bottom:0.5rem;transition:all 0.2s;cursor:pointer}.task-item:hover{border-color:var(--border)}.task-item.active{border-left:3px solid var(--accent);border-color:var(--border)}
.task-check{width:20px;height:20px;border-radius:50%;border:2px solid var(--text-muted);cursor:pointer;display:flex;align-items:center;justify-content:center;margin-top:2px;flex-shrink:0}.task-item.completed .task-check{background:var(--secondary);border-color:var(--secondary);color:#fff}.task-item.completed .task-title{text-decoration:line-through;color:var(--text-muted)}
.task-content{flex:1}.task-title{font-size:0.95rem;word-break:break-word}.task-pomo{display:flex;gap:0.2rem;margin-top:0.4rem}.pomo-dot{width:8px;height:8px;border-radius:50%;background:var(--border)}.pomo-dot.done{background:var(--primary)}
.task-actions{opacity:0;transition:opacity 0.2s}.task-item:hover .task-actions{opacity:1}.task-actions button{background:none;border:none;cursor:pointer;color:var(--text-muted);font-size:1.1rem}.task-actions button:hover{color:var(--primary)}
.stats-card h3{font-size:1.1rem;margin-bottom:0.5rem}.stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.stat-box{background:var(--bg-surface);padding:1rem;border-radius:8px;text-align:center}.sb-val{font-size:1.5rem;font-weight:700;font-family:var(--mono);color:var(--accent)}.sb-lbl{font-size:0.75rem;color:var(--text-muted);text-transform:uppercase;margin-top:0.3rem}
.streak-box{display:flex;align-items:center;gap:1rem;background:var(--bg-surface);padding:1rem;border-radius:8px}.streak-icon{font-size:2rem}.streak-val{font-size:1.2rem;font-weight:700}.streak-lbl{font-size:0.8rem;color:var(--text-muted)}
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.5);backdrop-filter:blur(4px);z-index:1000;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity 0.2s}.modal-overlay.active{opacity:1;pointer-events:all}.modal-content{width:90%;max-width:400px;transform:translateY(20px);transition:transform 0.3s}.modal-overlay.active .modal-content{transform:translateY(0)}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.setting-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;padding-bottom:1rem;border-bottom:1px solid var(--border)}.setting-row:last-child{border:none;margin-bottom:0}.toggle-label{display:flex;justify-content:space-between;width:100%;cursor:pointer}.mt-2{margin-top:0.5rem}.mt-3{margin-top:1rem}.mt-4{margin-top:1.5rem}.w-100{width:100%}
.footer{margin-top:4rem;border-top:1px solid var(--border);padding:2rem 0;font-size:0.85rem}.footer-inner{display:flex;justify-content:space-between;flex-wrap:wrap;gap:2rem}.footer-brand span{font-weight:700;font-size:1rem}.footer-brand p{color:var(--text-muted);margin-top:0.3rem}.footer-brand a{color:var(--accent);text-decoration:none}.footer-links-grid{display:flex;gap:3rem}.footer-links-grid h4{margin-bottom:0.75rem}.footer-links-grid a{display:block;color:var(--text-muted);text-decoration:none;margin-bottom:0.4rem}.footer-links-grid a:hover{color:var(--accent)}.copyright{width:100%;text-align:center;color:var(--text-muted);margin-top:1rem;padding-top:1rem;border-top:1px solid var(--border)}