:root{--bg: #f5f5f0;--surface: #ffffff;--text: #2c2c2c;--text-muted: #7a7a7a;--focus: #5b8a72;--focus-light: #e8f0ec;--break: #7a6e9e;--break-light: #ece8f5;--border: #e0e0dc;--shadow: 0 2px 12px rgba(0, 0, 0, .06);--radius: 12px;--font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--mono: ui-monospace, SFMono-Regular, Menlo, monospace}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{min-height:100vh;background:var(--bg);color:var(--text);font-family:var(--font);line-height:1.5;-webkit-font-smoothing:antialiased}.app{max-width:480px;margin:0 auto;padding:2rem 1.25rem 3rem;display:flex;flex-direction:column;gap:1.5rem}.header{text-align:center;padding-top:.5rem}.header h1{font-size:1.6rem;font-weight:700;letter-spacing:-.03em;color:var(--text)}.subtitle{font-size:.85rem;color:var(--text-muted);margin-top:.15rem}.mode-toggle{display:flex;justify-content:center;gap:.5rem}.mode-btn{padding:.45rem 1.4rem;border:1.5px solid var(--border);border-radius:999px;background:var(--surface);font-family:var(--font);font-size:.85rem;font-weight:500;color:var(--text-muted);cursor:pointer;transition:all .2s}.mode-btn:hover{border-color:var(--focus);color:var(--focus)}.mode-btn.active{background:var(--focus);border-color:var(--focus);color:#fff}.mode-btn.active:nth-child(2){background:var(--break);border-color:var(--break)}.timer-section{display:flex;flex-direction:column;align-items:center;gap:1.5rem}.timer-ring-wrap{position:relative;width:240px;height:240px}.timer-ring{width:100%;height:100%}.ring-bg{stroke:var(--border)}.ring-fg{transition:stroke-dashoffset .5s ease}.ring-fg.focus{stroke:var(--focus)}.ring-fg.break{stroke:var(--break)}.timer-display{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center}.timer-time{font-family:var(--mono);font-size:3.2rem;font-weight:600;letter-spacing:-.02em;line-height:1}.timer-mode-label{font-size:.8rem;color:var(--text-muted);margin-top:.35rem;text-transform:uppercase;letter-spacing:.08em;font-weight:500}.controls{display:flex;gap:.75rem}.btn{padding:.6rem 2rem;border:none;border-radius:999px;font-family:var(--font);font-size:.9rem;font-weight:600;cursor:pointer;transition:all .2s;letter-spacing:.01em}.btn-start{background:var(--focus);color:#fff}.btn-start:hover{background:#4a7a62}.btn-pause{background:#c9a44a;color:#fff}.btn-pause:hover{background:#b8933a}.btn-reset{background:var(--surface);color:var(--text-muted);border:1.5px solid var(--border)}.btn-reset:hover{border-color:var(--text-muted);color:var(--text)}.stats-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;box-shadow:var(--shadow)}.stats-card h2{font-size:.85rem;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;margin-bottom:.75rem}.stats-grid{display:flex;gap:2rem}.stat{display:flex;flex-direction:column}.stat-value{font-family:var(--mono);font-size:1.6rem;font-weight:600;line-height:1.1}.stat-label{font-size:.78rem;color:var(--text-muted);margin-top:.15rem}.streak-grid{display:flex;justify-content:space-between;gap:.4rem}.streak-day{display:flex;flex-direction:column;align-items:center;gap:.4rem;flex:1}.streak-label{font-size:.7rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;font-weight:500}.streak-dot{width:36px;height:36px;border-radius:50%;background:var(--bg);border:2px solid var(--border);display:flex;align-items:center;justify-content:center;transition:all .2s;position:relative}.streak-dot.filled{background:var(--focus-light);border-color:var(--focus)}.streak-dot.today{border-width:2.5px}.streak-dot.today.filled{box-shadow:0 0 0 3px #5b8a7233}.streak-count{font-family:var(--mono);font-size:.72rem;font-weight:700;color:var(--focus)}.settings-section{text-align:center}.settings-toggle{background:none;border:none;color:var(--text-muted);font-family:var(--font);font-size:.8rem;cursor:pointer;letter-spacing:.04em;padding:.4rem 0}.settings-toggle:hover{color:var(--text)}.settings-panel{display:flex;justify-content:center;gap:1.5rem;margin-top:.75rem;padding:1rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}.settings-panel label{display:flex;flex-direction:column;align-items:center;gap:.35rem;font-size:.78rem;color:var(--text-muted);font-weight:500}.settings-panel input{width:70px;padding:.4rem .5rem;border:1.5px solid var(--border);border-radius:8px;font-family:var(--mono);font-size:.95rem;text-align:center;background:var(--bg);color:var(--text);outline:none;transition:border-color .2s}.settings-panel input:focus{border-color:var(--focus)}@media(max-width:500px){.app{padding:1.25rem 1rem 2rem;gap:1.25rem}.header h1{font-size:1.35rem}.timer-ring-wrap{width:200px;height:200px}.timer-time{font-size:2.6rem}.btn{padding:.5rem 1.5rem;font-size:.85rem}.stats-grid{gap:1.5rem}.stat-value{font-size:1.35rem}.streak-dot{width:30px;height:30px}.streak-label{font-size:.62rem}.settings-panel{flex-direction:column;align-items:center;gap:1rem}}