body,html{margin:0;padding:0}.wave-bg{position:absolute;bottom:0;left:0;width:100%;height:100%;background:radial-gradient(circle at 50% 50%,rgba(255,255,255,.07) 10%,transparent 70%);opacity:.2;z-index:0;animation:waveMotion 10s ease-in-out infinite}@keyframes waveMotion{0%{transform:translate(0) translateY(0)}50%{transform:translate(-20%) translateY(5px)}to{transform:translate(0) translateY(0)}}.bubbles{position:absolute;top:0;left:0;width:100%;height:100%;overflow:hidden;z-index:0;pointer-events:none}.bubble{position:absolute;bottom:-100px;border-radius:50%;opacity:.1;background:radial-gradient(circle at 30% 30%,white,transparent);width:var(--size);height:var(--size);left:var(--left);animation:rise var(--time) ease-in infinite;animation-delay:var(--delay)}@keyframes rise{0%{bottom:-100px;transform:translate(0) scale(.05);opacity:.01}50%{transform:translate(calc(20px * (.5 - Math.random()))) scale(.1);opacity:.05}to{bottom:100vh;transform:translate(calc(50px * (.5 - Math.random()))) scale(.02);opacity:.02}}.deep-waves{position:absolute;bottom:0;left:0;width:100%;height:200px;overflow:hidden;z-index:0;pointer-events:none}.cta-text{font-size:1.1rem;font-weight:300;color:#aacbd6;opacity:.95;margin-top:5px}.breathing-app{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background:linear-gradient(180deg,#002d40,#005373);width:100vw;min-height:100vh;display:flex;flex-direction:column;align-items:center;padding:0;color:#cde8f6;position:relative;overflow:hidden}.volume-wrapper{position:relative}.volume-panel{position:absolute;left:60px;top:100px;background-color:#0003;border-radius:12px;padding:15px;width:250px;z-index:20;box-shadow:0 4px 12px #00000040}.breathing-app:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 15% 15%,rgba(255,255,255,.1) 5px,transparent 50px),radial-gradient(circle at 85% 25%,rgba(255,255,255,.1) 8px,transparent 60px),radial-gradient(circle at 15% 85%,rgba(255,255,255,.1) 10px,transparent 30px),radial-gradient(circle at 75% 75%,rgba(255,255,255,.1) 7px,transparent 55px);z-index:0;pointer-events:none}.breathing-app:after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 20%,rgba(255,255,255,.1) 8px,transparent 40px),radial-gradient(circle at 80% 70%,rgba(255,255,255,.1) 6px,transparent 55px);z-index:0;pointer-events:none}.app-header{text-align:center;margin-bottom:10px;z-index:1}.app-header h1{font-size:2.2rem;margin-bottom:0;font-weight:300}.yellow-text{color:gold;font-weight:400}.app-header h2{font-size:1.1rem;font-weight:300;margin-top:0;opacity:.9}.breathing-display{display:flex;flex-direction:column;align-items:center;justify-content:center;margin:10px 0;position:relative;z-index:1;width:100%}.breathing-circle{width:150px;height:150px;border-radius:50%;box-shadow:0 0 25px #ffffff4d;display:flex;flex-direction:column;align-items:center;justify-content:center;transition:all .5s ease;z-index:2;text-align:center;padding:20px;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);border:1px solid rgba(255,255,255,.2);box-shadow:0 0 25px #69cfff66,inset 0 0 15px #fff3;position:relative;overflow:hidden}.breathing-circle:after{content:"";position:absolute;top:50%;left:50%;width:150%;height:150%;background:radial-gradient(circle,rgba(255,255,255,.2) 0%,transparent 70%);transform:translate(-50%,-50%);opacity:0;animation:ripple 4s ease-out infinite}@keyframes ripple{0%{opacity:0;transform:translate(-50%,-50%) scale(.3)}30%{opacity:.3}to{opacity:0;transform:translate(-50%,-50%) scale(1.5)}}@keyframes inhale{0%{transform:scale(.8);background-color:#69cfff99}to{transform:scale(1.2);background-color:#69cfffe6}}@keyframes exhale{0%{transform:scale(1.2);background-color:#69cfffe6}to{transform:scale(.8);background-color:#69cfff99}}@keyframes hold{0%{box-shadow:0 0 15px #ffffff4d}50%{box-shadow:0 0 30px #ffffff80}to{box-shadow:0 0 15px #ffffff4d}}.breathing-circle.inhale{animation:inhale ease-in forwards;animation-iteration-count:1}.breathing-circle.exhale{animation:exhale ease-out forwards;animation-iteration-count:1}.breathing-circle.hold{animation:hold ease-in-out infinite}.breathing-circle.hold-full{transform:scale(1.2)}.breathing-circle.hold-empty{transform:scale(.75)}.phase-display{font-size:2rem;font-weight:300;margin-bottom:5px}.subtitle-display{font-size:.9rem;opacity:.9}.timer-display{font-size:1.5rem;margin-top:10px;font-weight:300}.round-counter{display:none}.pattern-desc{font-size:.75rem;opacity:.8;margin-top:4px;line-height:1.2}.controls-row{display:flex;align-items:center;justify-content:center;margin:15px 0 30px;z-index:2;width:100%;max-width:450px}.start-button{background-color:#cde8f6;color:#004c6d;border:none;border-radius:50px;padding:12px 35px;font-size:1.2rem;font-weight:700;cursor:pointer;transition:all .3s ease;box-shadow:0 4px 10px #0000001a;z-index:2;margin-right:15px}.start-button:hover{background-color:#f0f0f0;transform:translateY(-2px);box-shadow:0 6px 15px #00000026}.volume-toggle{background-color:#fff3;border:none;border-radius:50%;width:40px;height:40px;font-size:1.2rem;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:10;position:relative}.volume-panel{position:absolute;top:-120px;right:-105px;background-color:#0003;border-radius:10px;padding:15px;width:250px;z-index:20}.pattern-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;width:100%;max-width:450px;margin-bottom:15px;z-index:2}.pattern-btn{background-color:#fff3;border:1px solid rgba(255,255,255,.3);color:#cde8f6;border-radius:8px;padding:10px;font-size:.9rem;cursor:pointer;transition:all .2s ease}.ambient-controls{display:flex;justify-content:space-between;width:100%;max-width:450px;margin-bottom:15px;z-index:2}.ambient-btn{background-color:#fff3;border:1px solid rgba(255,255,255,.3);color:#cde8f6;border-radius:8px;padding:10px 15px;font-size:.9rem;cursor:pointer;transition:all .2s ease;display:flex;align-items:center;gap:8px}.ambient-btn i{font-size:1.1rem}.pattern-btn:hover,.ambient-btn:hover{background-color:#ffffff4d}.pattern-btn.active,.ambient-btn.active{background-color:#fff6;border-color:#fff;font-weight:700}.rounds-control{background-color:#0000001a;border-radius:10px;padding:15px;width:100%;max-width:450px;margin-bottom:15px;z-index:2}.rounds-label{display:inline-block;margin-right:10px;font-size:.95rem;vertical-align:middle}.rounds-slider{display:inline-block;width:calc(100% - 180px);vertical-align:middle}.custom-panel{background-color:#0000001a;border-radius:10px;padding:15px;width:100%;max-width:375px;margin-bottom:15px;z-index:2}.slider-control{margin-bottom:15px;display:flex;align-items:center}input[type=range]{width:95%}.slider-control:last-child{margin-bottom:0}.slider-control label{width:130px;font-size:.95rem}.slider-control input[type=range]{flex:1;background:#ffffff4d;height:5px;border-radius:5px;outline:none;-webkit-appearance:none}.slider-control input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;background:#fff;border-radius:50%;cursor:pointer}.volume-control{margin-bottom:10px;display:flex;align-items:center}.volume-control:last-child{margin-bottom:0}.volume-control label{width:120px;font-size:.9rem}.volume-control input[type=range]{flex:1;background:#ffffff4d;height:5px;border-radius:5px;outline:none;-webkit-appearance:none}.volume-control input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;background:#fff;border-radius:50%;cursor:pointer}.donate-link{text-align:center;margin-top:30px;z-index:10;position:relative}@media (max-width: 500px){.app-header h1{font-size:1.8rem}.breathing-circle{width:180px;height:180px}.phase-display{font-size:1.8rem}.pattern-grid{grid-template-columns:1fr}.ambient-controls{flex-wrap:wrap;gap:8px;justify-content:center}.ambient-btn{flex:0 0 auto}.start-button{padding:10px 25px;font-size:1rem}.slider-control,.volume-control{flex-direction:column;align-items:flex-start}.slider-control label,.volume-control label{width:100%;margin-bottom:5px}.rounds-label{display:block;margin-bottom:5px}.rounds-slider{width:100%}}