html,body{width:100%;height:100%;margin:0;padding:0;overflow-x:hidden}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color .3s ease,color .3s ease}:root{--color-primary: #f76c6c;--color-secondary: #f8a5a5;--color-background: #ffffff;--color-text: #333333;--color-text-muted: #666666;--color-button-bg: #e0e0e0;--color-button-text: #333333;--color-button-hover-bg: #d0d0d0;--color-settings-bg: #f9f9f9;--color-border: #cccccc;--shadow-color: rgba(0, 0, 0, .1)}body.theme-blue{--color-primary: #6c99f7;--color-secondary: #a5c1f8}body.theme-green{--color-primary: #6cf789;--color-secondary: #a5f8b8}body.theme-purple{--color-primary: #a96cf7;--color-secondary: #cda5f8}body.dark-mode{--color-background: #1e1e1e;--color-text: #e0e0e0;--color-text-muted: #aaaaaa;--color-button-bg: #444444;--color-button-text: #e0e0e0;--color-button-hover-bg: #555555;--color-settings-bg: #2a2a2a;--color-border: #555555;--shadow-color: rgba(255, 255, 255, .1)}body{background-color:var(--color-background);color:var(--color-text)}.app-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;width:100%;padding:20px;box-sizing:border-box}.timer-display{margin-left:auto;margin-right:auto;text-align:center;width:100%;max-width:800px}.progress-bar-container,.progress-circular-container{margin-left:auto;margin-right:auto;width:100%;max-width:800px}@media (min-width: 768px){.timer-display,.controls,.progress-bar-container{width:80%;max-width:1200px}}.progress-circular-container{width:400px;height:400px}.timer-text-linear{font-size:8rem}.timer-text-circular{font-size:6rem}.app-title{color:var(--color-primary);margin-bottom:2rem;text-align:center;font-size:2rem;font-weight:600}.timer-display{max-width:400px}.timer-text-linear{font-size:clamp(4rem,15vw,6rem);font-weight:700;margin-bottom:10px;color:var(--color-primary);line-height:1.1}.progress-bar-container{width:100%;height:20px;background-color:var(--color-button-bg);border-radius:10px;overflow:hidden;border:1px solid var(--color-border);margin:0 auto}.progress-bar{height:100%;background-color:var(--color-primary);width:100%;transition:width .5s linear,background-color .3s ease;border-radius:10px 0 0 10px}.progress-circular-container{position:relative;width:clamp(200px,60vw,300px);height:clamp(200px,60vw,300px);margin:0 auto}.progress-circular-svg{width:100%;height:100%;transform:rotate(-90deg)}.progress-circular-bg,.progress-circular-fg{fill:none;stroke-width:15}.progress-circular-bg{stroke:var(--color-button-bg)}.progress-circular-fg{stroke:var(--color-primary);stroke-linecap:round;transition:stroke-dashoffset .5s linear,stroke .3s ease}.timer-text-circular{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:clamp(3rem,10vw,4.5rem);font-weight:700;color:var(--color-primary);line-height:1}.controls{display:flex;gap:10px;margin-bottom:20px;flex-wrap:wrap;justify-content:center;width:100%;max-width:800px}.control-button,.settings-button-component{padding:15px 25px;font-size:1.1rem;cursor:pointer;border:1px solid var(--color-border);border-radius:6px;background-color:var(--color-button-bg);color:var(--color-button-text);transition:background-color .2s ease,transform .1s ease,box-shadow .2s ease;box-shadow:0 2px 4px var(--shadow-color)}.control-button:hover,.settings-button-component:hover{background-color:var(--color-button-hover-bg);transform:translateY(-1px);box-shadow:0 4px 6px var(--shadow-color)}.control-button:active,.settings-button-component:active{transform:translateY(0);box-shadow:0 1px 2px var(--shadow-color)}.control-button.active{background-color:var(--color-primary);color:#fff;border-color:var(--color-primary)}.session-counter{color:var(--color-text-muted);font-size:.9rem;margin-top:10px;text-align:center;width:100%}.settings-button-container{position:absolute;top:15px;right:15px;z-index:20}.settings-panel{background-color:var(--color-settings-bg);border:1px solid var(--color-border);padding:20px;border-radius:8px;box-shadow:0 5px 20px var(--shadow-color);position:fixed;top:60px;right:15px;width:90%;max-width:320px;z-index:10;transform:translate(110%);opacity:0;transition:transform .4s cubic-bezier(.25,.8,.25,1),opacity .4s ease-in-out;max-height:calc(100vh - 80px);overflow-y:auto}.settings-panel.show{transform:translate(0);opacity:1}.settings-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#0000004d;z-index:5;opacity:0;visibility:hidden;transition:opacity .4s ease-in-out,visibility 0s linear .4s}.settings-overlay.show{opacity:1;visibility:visible;transition:opacity .4s ease-in-out,visibility 0s linear 0s}body.dark-mode .settings-overlay{background:#ffffff1a}.settings-panel h3{margin-top:0;margin-bottom:20px;color:var(--color-primary);text-align:center;border-bottom:1px solid var(--color-border);padding-bottom:10px;font-weight:600}.setting-item{margin-bottom:18px;display:flex;flex-direction:column;gap:8px}.setting-item-header{display:flex;justify-content:space-between;align-items:center;width:100%}.setting-item label{color:var(--color-text-muted);font-size:.9rem;font-weight:500}.setting-controls{display:flex;align-items:center;gap:8px;width:100%;justify-content:flex-end}.setting-controls.full-width{justify-content:space-between}.setting-controls button{width:32px;height:32px;font-size:1.4rem;line-height:1;padding:0;cursor:pointer;border:1px solid var(--color-border);background-color:var(--color-button-bg);color:var(--color-button-text);border-radius:4px;transition:background-color .2s ease}.setting-controls button:hover{background-color:var(--color-button-hover-bg)}.setting-controls button:disabled{opacity:.5;cursor:not-allowed;background-color:var(--color-button-bg)}.setting-controls span,.setting-controls input[type=number]{min-width:35px;text-align:center;font-weight:700;font-size:1rem}.setting-controls input[type=number]{width:55px;padding:6px;border:1px solid var(--color-border);background-color:var(--color-background);color:var(--color-text);border-radius:4px;text-align:center}.setting-controls input[type=number]::-webkit-inner-spin-button,.setting-controls input[type=number]::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}input[type=range]{flex-grow:1;cursor:pointer;accent-color:var(--color-primary);height:6px;background:var(--color-button-bg);border-radius:3px;outline:none;margin:0 10px}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:18px;height:18px;background:var(--color-primary);border-radius:50%;cursor:pointer}input[type=range]::-moz-range-thumb{width:18px;height:18px;background:var(--color-primary);border-radius:50%;cursor:pointer;border:none}select{padding:6px 10px;border:1px solid var(--color-border);background-color:var(--color-background);color:var(--color-text);border-radius:4px;cursor:pointer;flex-grow:1;margin-left:10px}.toggle-switch{position:relative;display:inline-block;width:50px;height:26px;flex-shrink:0}.toggle-switch input{opacity:0;width:0;height:0}.slider{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background-color:var(--color-button-bg);transition:.4s;border-radius:26px;border:1px solid var(--color-border)}.slider:before{position:absolute;content:"";height:20px;width:20px;left:2px;bottom:2px;background-color:#fff;box-shadow:0 1px 3px #0003;transition:.4s;border-radius:50%}body.dark-mode .slider:before{background-color:#ccc}input:checked+.slider{background-color:var(--color-primary);border-color:var(--color-primary)}input:checked+.slider:before{transform:translate(24px)}.settings-close-button{margin-top:20px;width:100%}@media (max-width: 600px){.app-title{font-size:1.5rem;margin-bottom:1.5rem}.controls{gap:8px}.control-button,.settings-button-component{padding:8px 12px;font-size:.85rem}.settings-panel{width:calc(100% - 30px);right:15px;left:15px;top:55px;max-height:calc(100vh - 70px)}.setting-item{margin-bottom:15px}}