:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}.app{position:fixed;inset:0;background:linear-gradient(180deg,#f8fbff,#eef5ff);display:flex;align-items:center;justify-content:center}.card{width:320px;background:#fff;border-radius:24px;padding:24px;box-shadow:0 20px 40px #00000014;text-align:center}.title{font-size:22px;font-weight:600;color:#333}.subtitle{font-size:14px;color:#777;margin-bottom:20px}.bottle-area{display:flex;justify-content:center;margin:20px 0}.bottle{width:80px;height:200px;border:3px solid #cfe6ff;border-radius:20px;position:relative;overflow:hidden}.water{position:absolute;bottom:0;width:100%;height:0%;background:linear-gradient(180deg,#7ec8e3,#4da6ff);transition:height .6s ease;overflow:hidden}.water:after{content:"";position:absolute;top:-8px;left:-50%;width:200%;height:16px;background:#ffffff59;border-radius:50%;animation:wave 3s linear infinite}@keyframes wave{0%{transform:translate(0)}to{transform:translate(100%)}}.count{margin:16px 0;font-size:16px;color:#444}.drink-btn{width:100%;padding:12px;border-radius:14px;border:none;background:#4da6ff;color:#fff;font-size:16px;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease}.drink-btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px #4da6ff66}.drink-btn:disabled{background:#b9d9ff;cursor:default;box-shadow:none}.reset-btn{margin-top:12px;background:transparent;border:none;color:#18418e;font-size:14px;cursor:pointer}.reset-btn:hover{text-decoration:underline}.bubbles{position:fixed;inset:0;pointer-events:none;overflow:hidden}.bubble{position:absolute;bottom:-60px;width:18px;height:18px;background:#4da6ff2e;border-radius:50%;animation:floatUp 12s linear infinite}.b1{left:20%;animation-duration:14s}.b2{left:40%;animation-duration:10s;width:12px;height:12px}.b3{left:65%;animation-duration:16s;width:22px;height:22px}.b4{left:80%;animation-duration:11s;width:14px;height:14px}@keyframes floatUp{0%{transform:translateY(0);opacity:.6}to{transform:translateY(-110vh);opacity:0}}.date{font-size:.85rem;color:#6b7280;margin-top:4px}.goal{font-size:.9rem;color:#3b82f6;margin-bottom:14px}.goal-options{display:flex;gap:12px;justify-content:center;margin-top:20px}.goal-options button{padding:12px 16px;border-radius:14px;border:1px solid #cfe6ff;background:#f4f9ff;color:#3b82f6;cursor:pointer;font-size:16px}.goal-options button:hover{background:#e9f2ff}.goal-options{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}.goal-card{padding:16px 12px;border-radius:18px;background:#f4f9ff;border:1px solid #cfe6ff;text-align:center;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease}.goal-card h3{font-size:18px;color:#2563eb;margin-bottom:4px}.goal-card p{font-size:12px;color:#6b7280}.goal-card:hover{transform:translateY(-4px);box-shadow:0 10px 20px #2563eb26}.goal-card.active{border-color:#3b82f6;background:#eef5ff;box-shadow:0 12px 24px #3b82f640}.goal-card.active h3{color:#3d1eaf}.theme-toggle{position:absolute;top:16px;right:16px;background:transparent;border:none;font-size:18px;cursor:pointer}.app.dark{background:linear-gradient(180deg,#0f172a,#020617)}.app.dark .card{background:#020617;color:#e5e7eb}.app.dark .subtitle,.app.dark .count{color:#9ca3af}.app.dark .goal-card{background:#020617;border-color:#334155}.app.dark .goal-card.active{background:#0f172a}.drink-options{display:flex;gap:10px;justify-content:center;margin:14px 0}.drink-option{padding:8px 14px;border-radius:999px;border:1px solid #cfe6ff;background:#f4f9ff;color:#2563eb;cursor:pointer;font-size:14px;transition:all .2s ease}.drink-option.active{background:#2563eb;color:#fff;border-color:#2563eb}.drink-option:hover{transform:translateY(-2px)}