.tracker-circle-wrap{position:relative;width:220px;height:220px}.wave-container{position:relative;width:220px;height:220px;border-radius:50%;border:6px solid var(--bg-surface);overflow:hidden;box-shadow:inset 0 0 20px #00000026,0 8px 32px var(--brand-glow);background:#06a1ef05}.water-percentage{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-family:var(--font-header);font-size:2.25rem;font-weight:700;z-index:3;color:var(--text-primary);text-shadow:0 2px 10px rgba(255,255,255,.6)}:root[data-theme=dark] .water-percentage{text-shadow:0 2px 10px rgba(0,0,0,.6)}.water-fill{position:absolute;bottom:0;left:0;width:100%;height:100%;transform:translateY(100%);filter:saturate(.35) brightness(.78);transition:transform .8s cubic-bezier(.4,0,.2,1),filter .8s ease}.wave-crest{position:absolute;bottom:0;left:0;width:200%;height:100%;transform-origin:center bottom;display:block}.wave-back{fill:var(--bg-wave-back);animation:wave-float-back 6s linear infinite;z-index:1}.wave-front{fill:var(--bg-wave-front);animation:wave-float 8s linear infinite;z-index:2}@keyframes wave-float{0%{transform:translate(0) scaleY(1)}50%{transform:translate(-25%) scaleY(.95)}to{transform:translate(-50%) scaleY(1)}}@keyframes wave-float-back{0%{transform:translate(0) scaleY(1)}50%{transform:translate(-15%) scaleY(1.05)}to{transform:translate(-30%) scaleY(1)}}.splash-layer{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none;overflow:visible;z-index:5}.droplet{position:absolute;top:50%;left:50%;width:var(--size, 12px);height:var(--size, 12px);margin:calc(var(--size, 12px) / -2) 0 0 calc(var(--size, 12px) / -2);background:radial-gradient(circle at 35% 30%,hsl(190,95%,72%),var(--brand-primary));border-radius:50%;box-shadow:0 0 8px var(--brand-glow);opacity:0;animation:droplet-burst var(--dur, .9s) cubic-bezier(.22,.61,.36,1) var(--delay, 0s) forwards}@keyframes droplet-burst{0%{transform:translate(0) scale(.35);opacity:0}12%{opacity:1}70%{transform:translate(calc(var(--dx) * .9),calc(var(--dy) * .9)) scale(1);opacity:1}to{transform:translate(var(--dx),var(--dy)) scale(.25);opacity:0}}@media (prefers-reduced-motion: reduce){.droplet{display:none}.wave-back,.wave-front{animation:none}}.app-shell{min-height:100vh;display:flex;flex-direction:column}.topbar{display:flex;align-items:center;justify-content:space-between;padding:18px 24px;gap:16px}.brand{display:flex;align-items:center;gap:8px;font-family:var(--font-header);font-weight:700;font-size:1.25rem;color:var(--text-primary);text-decoration:none}.brand-drop{color:var(--brand-primary)}.topbar-actions{display:flex;align-items:center;gap:10px}.topbar-link{color:var(--text-secondary);font-size:.9rem;font-weight:600;text-decoration:none;padding:6px 10px;border-radius:8px;transition:color .2s ease,background-color .2s ease}.topbar-link:hover{color:var(--text-primary)}.topbar-link.active{color:var(--brand-primary);background:var(--bg-surface)}.lang-switch{display:inline-flex;gap:4px;padding:4px;background:var(--bg-surface);border:1px solid var(--border-glow);border-radius:10px}.lang-switch button{border:none;background:transparent;color:var(--text-secondary);font-family:inherit;font-size:.8rem;font-weight:600;padding:5px 9px;border-radius:7px;cursor:pointer;transition:background-color .2s ease,color .2s ease}.lang-switch button:hover{color:var(--text-primary)}.lang-switch button.active{background:var(--brand-primary);color:#fff}.theme-toggle{border:1px solid var(--border-glow);background:var(--bg-surface);color:var(--text-primary);width:38px;height:38px;border-radius:10px;cursor:pointer;font-size:1.1rem;line-height:1;transition:background-color .2s ease,transform .2s ease}.theme-toggle:hover{transform:translateY(-1px)}.auth-screen{flex:1;display:flex;align-items:center;justify-content:center;padding:24px}.auth-card{width:100%;max-width:400px;text-align:center}.auth-card h1{font-size:1.75rem;margin-bottom:6px}.auth-subtitle{color:var(--text-secondary);font-size:.9rem;margin-bottom:24px}.auth-actions{display:flex;flex-direction:column;gap:14px}.auth-switch{margin-top:20px;font-size:.875rem;color:var(--text-secondary)}.dashboard{flex:1;display:flex;justify-content:center;padding:24px 24px 48px}.dashboard-stack{width:100%;max-width:440px;display:flex;flex-direction:column;gap:24px}.tracker-card{text-align:center;padding-bottom:40px}.tracker-card h1{font-size:1.6rem;margin-bottom:22px}.tracker-card .tracker-circle-wrap{margin:0 auto 22px}.tracker-progress{font-size:1.125rem;font-weight:600;margin-bottom:6px}.tracker-message{font-size:.9rem;color:var(--text-secondary);min-height:1.2em;margin-bottom:20px}.tracker-message.is-goal{color:var(--brand-success);font-weight:600}.tracker-actions{display:flex;flex-direction:column;align-items:stretch;gap:4px}.settings-card h2{font-size:1.25rem;margin-bottom:18px}.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:end}@media (max-width: 380px){.settings-grid{grid-template-columns:1fr}}.form-success{color:var(--brand-success);font-size:.875rem;margin-bottom:14px}.account{flex:1;display:flex;justify-content:center;padding:24px 24px 48px}.account-stack{width:100%;max-width:440px;display:flex;flex-direction:column;gap:24px}.account-card h2{font-size:1.25rem;margin-bottom:18px}.account-info{display:flex;flex-direction:column;gap:14px;margin:0}.account-row{display:flex;justify-content:space-between;align-items:baseline;gap:12px}.account-row dt{color:var(--text-secondary);font-size:.875rem}.account-row dd{margin:0;font-weight:600;color:var(--text-primary);text-align:right;overflow-wrap:anywhere}.password-card h2{font-size:1.25rem;margin-bottom:18px}.password-fields{display:flex;flex-direction:column;gap:14px;margin-bottom:4px}.history-card h2{font-size:1.25rem;margin-bottom:18px}.history-chart{display:flex;align-items:flex-end;gap:4px;margin-bottom:18px}.history-bar{flex:1;min-width:0;display:flex;flex-direction:column;align-items:center;gap:5px}.history-bar-track{width:100%;height:80px;display:flex;align-items:flex-end;background:var(--bg-surface);border-radius:5px;overflow:hidden}.history-bar-fill{width:100%;min-height:2px;background:var(--brand-primary);border-radius:5px 5px 0 0;transition:height .3s ease}.history-bar-fill.is-hit{background:var(--brand-success)}.history-bar-label{font-size:.65rem;color:var(--text-secondary)}.history-stats{display:flex;gap:12px}.stat-tile{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;padding:12px 6px;background:var(--bg-surface);border-radius:12px;text-align:center}.stat-value{font-family:var(--font-header);font-weight:700;font-size:1.25rem;color:var(--brand-primary)}.stat-label{font-size:.7rem;color:var(--text-secondary)}.history-empty{color:var(--text-secondary);font-size:.9rem}.center-screen{flex:1;display:flex;align-items:center;justify-content:center;color:var(--text-secondary)}:root{--bg-primary: hsl(210, 40%, 98%);--bg-surface: hsla(210, 40%, 100%, .7);--text-primary: hsl(222, 47%, 12%);--text-secondary: hsl(215, 16%, 47%);--brand-primary: hsl(200, 95%, 48%);--brand-glow: hsla(200, 95%, 48%, .15);--brand-success: hsl(150, 80%, 40%);--brand-danger: hsl(352, 80%, 55%);--border-glow: hsla(210, 40%, 80%, .4);--bg-wave-front: hsla(200, 90%, 55%, .85);--bg-wave-back: hsla(200, 80%, 65%, .5);--font-primary: "Inter", system-ui, -apple-system, sans-serif;--font-header: "Outfit", "Inter", sans-serif;--transition-speed: .3s}:root[data-theme=dark]{--bg-primary: hsl(222, 47%, 6%);--bg-surface: hsla(222, 47%, 12%, .65);--text-primary: hsl(210, 40%, 98%);--text-secondary: hsl(215, 20%, 65%);--brand-primary: hsl(190, 95%, 50%);--brand-glow: hsla(190, 95%, 50%, .3);--brand-success: hsl(150, 80%, 45%);--brand-danger: hsl(352, 85%, 62%);--border-glow: hsla(190, 95%, 50%, .15);--bg-wave-front: hsla(190, 95%, 45%, .85);--bg-wave-back: hsla(190, 80%, 30%, .5)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-primary);background-color:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.5;transition:background-color var(--transition-speed) ease,color var(--transition-speed) ease;background-image:radial-gradient(at 0% 0%,hsla(200,95%,48%,.06) 0px,transparent 50%),radial-gradient(at 100% 100%,hsla(190,95%,50%,.06) 0px,transparent 50%);background-attachment:fixed}h1,h2,h3{font-family:var(--font-header);line-height:1.2;color:var(--text-primary)}.glass-card{background:var(--bg-surface);backdrop-filter:blur(12px) saturate(180%);-webkit-backdrop-filter:blur(12px) saturate(180%);border:1px solid var(--border-glow);border-radius:24px;box-shadow:0 8px 32px #00000014;padding:32px;transition:background-color var(--transition-speed) ease,box-shadow .3s ease}.glass-input-container{margin-bottom:18px;text-align:left}.glass-input-label{display:block;font-size:.875rem;font-weight:500;color:var(--text-secondary);margin-bottom:6px}.glass-input{width:100%;padding:14px 16px;background:#f8fafc66;border:1.5px solid var(--border-glow);border-radius:12px;font-family:inherit;font-size:1rem;color:var(--text-primary);outline:none;transition:border-color .25s ease,box-shadow .25s ease,background-color .25s ease}:root[data-theme=dark] .glass-input{background:#1b294b66}.glass-input:focus{border-color:var(--brand-primary);box-shadow:0 0 12px var(--brand-glow)}.glass-input::placeholder{color:var(--text-secondary);opacity:.7}.btn-primary{display:inline-flex;align-items:center;justify-content:center;width:100%;padding:14px 28px;background:linear-gradient(135deg,var(--brand-primary),hsl(210,95%,48%));color:#fff;font-family:inherit;font-size:1rem;font-weight:600;border:none;border-radius:14px;cursor:pointer;box-shadow:0 4px 14px var(--brand-glow);transition:transform .2s cubic-bezier(.34,1.56,.64,1),box-shadow .2s ease,filter .2s ease,opacity .2s ease}.btn-primary:hover:not(:disabled){transform:scale(1.02);box-shadow:0 6px 20px var(--brand-glow);filter:brightness(.9)}.btn-primary:active:not(:disabled){transform:scale(.98)}.btn-primary:disabled{opacity:.6;cursor:default}.btn-quiet{align-self:center;margin-top:4px;padding:6px 16px;background:transparent;border:none;border-radius:8px;color:var(--text-secondary);font-family:inherit;font-size:.875rem;font-weight:500;cursor:pointer;transition:color .2s ease,background-color .2s ease}.btn-quiet:hover:not(:disabled){color:var(--text-primary);background:var(--brand-glow)}.btn-quiet:disabled{opacity:.45;cursor:default}.link{color:var(--brand-primary);font-size:.875rem;font-weight:500;text-decoration:none;cursor:pointer;background:none;border:none;font-family:inherit}.link:hover{text-decoration:underline}.form-error{color:var(--brand-danger);font-size:.875rem;margin-bottom:14px;min-height:1.2em}