.app{min-height:100dvh;display:flex;flex-direction:column}.app-main{flex:1;padding:1.25rem 1rem calc(var(--nav-height) + var(--safe-bottom) + 1rem);max-width:480px;margin:0 auto;width:100%}.screen{display:flex;flex-direction:column;gap:1rem}.screen-header h1{font-size:1.75rem;font-weight:700;letter-spacing:-.02em}.eyebrow{font-size:.75rem;text-transform:uppercase;letter-spacing:.12em;color:var(--accent);font-weight:600;margin-bottom:.25rem}.subtitle{color:var(--text-muted);margin-top:.35rem;font-size:.95rem}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem}.card h2{font-size:1rem;margin-bottom:1rem}.picker-row{display:grid;grid-template-columns:1fr 1fr;gap:.75rem;margin-bottom:1rem}.picker-row label{display:flex;flex-direction:column;gap:.35rem;font-size:.85rem;color:var(--text-muted)}select{background:var(--bg-elevated);color:var(--text);border:1px solid var(--border);border-radius:10px;padding:.65rem .75rem}.workout-summary{background:var(--bg-elevated);border-radius:12px;padding:.85rem 1rem;margin-bottom:1rem}.workout-label{font-weight:600}.workout-meta{color:var(--text-muted);font-size:.9rem;margin-top:.2rem}.tips-list{display:flex;flex-direction:column;gap:.6rem;color:var(--text-muted);font-size:.9rem}.tips-list li:before{content:"• ";color:var(--accent)}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:12px;padding:.7rem 1.1rem;font-weight:600;transition:transform .15s,opacity .15s}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-dim));color:#042f2e}.btn-secondary{background:var(--bg-elevated);color:var(--text);border:1px solid var(--border)}.btn-ghost{color:var(--text-muted)}.btn-large{width:100%;padding:1rem;font-size:1.05rem}.btn-small{padding:.4rem .75rem;font-size:.85rem;margin-top:.75rem}.bottom-nav{position:fixed;bottom:0;left:0;right:0;height:calc(var(--nav-height) + var(--safe-bottom));padding-bottom:var(--safe-bottom);display:flex;background:#0c1222eb;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:1px solid var(--border)}.nav-item{flex:1;color:var(--text-muted);font-weight:600;font-size:.9rem}.nav-item.active{color:var(--accent)}.workout-screen{min-height:100dvh;padding:1.5rem 1.25rem 2rem;max-width:480px;margin:0 auto;transition:background .4s}.workout-screen.phase-run{background:radial-gradient(circle at top,rgba(249,115,22,.18),var(--bg) 50%)}.workout-screen.phase-walk{background:radial-gradient(circle at top,rgba(56,189,248,.15),var(--bg) 50%)}.workout-top{text-align:center;margin-bottom:1.5rem}.phase-title{font-size:2rem;font-weight:800;letter-spacing:-.03em;margin:.25rem 0}.workout-screen.phase-run .phase-title{color:var(--run)}.workout-screen.phase-walk .phase-title{color:var(--walk)}.timer-display{font-size:4rem;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.04em;line-height:1;margin:.5rem 0}.timer-sub{color:var(--text-muted)}.progress-ring-wrap{position:relative;width:200px;height:200px;margin:0 auto 1.5rem}.progress-ring{width:100%;height:100%;transform:rotate(-90deg)}.progress-ring-bg{fill:none;stroke:var(--bg-elevated);stroke-width:8}.progress-ring-fill{fill:none;stroke:var(--accent);stroke-width:8;stroke-linecap:round;transition:stroke-dashoffset .3s linear}.progress-ring-label{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:1.25rem;font-weight:700;font-variant-numeric:tabular-nums}.progress-ring-label small{font-size:.75rem;color:var(--text-muted);font-weight:500}.workout-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(90px,1fr));gap:.75rem;margin-bottom:1rem}.workout-stats>div{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:.75rem;text-align:center}.stat-label{display:block;font-size:.75rem;color:var(--text-muted);margin-bottom:.25rem}.stat-value{font-weight:700;font-variant-numeric:tabular-nums}.workout-actions{display:flex;flex-direction:column;gap:.75rem;margin-top:auto}.hint{font-size:.85rem;color:var(--text-muted);text-align:center}.hint.warning{color:var(--danger)}.hint.success{color:var(--success)}.run-list{display:flex;flex-direction:column;gap:.75rem}.run-card-header{display:flex;justify-content:space-between;align-items:flex-start;gap:.75rem}.run-card h3{font-size:1rem}.run-date{color:var(--text-muted);font-size:.85rem;margin-top:.2rem}.run-stats{display:flex;gap:1rem;margin-top:.75rem;font-weight:600;font-variant-numeric:tabular-nums}.badge{font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;padding:.25rem .5rem;border-radius:999px;white-space:nowrap}.badge-success{background:#4ade8026;color:var(--success)}.badge-muted{background:#94a3b826;color:var(--text-muted)}.empty-card{text-align:center;color:var(--text-muted)}.settings-card{display:flex;flex-direction:column;gap:1rem}.toggle-row{display:flex;align-items:center;justify-content:space-between;gap:1rem;cursor:pointer}.toggle-row span{display:flex;flex-direction:column;gap:.15rem}.toggle-row small{color:var(--text-muted);font-size:.8rem}.toggle-row input[type=checkbox]{width:1.25rem;height:1.25rem;accent-color:var(--accent);flex-shrink:0}:root{--bg: #0c1222;--bg-elevated: #151d32;--bg-card: #1a2440;--text: #f0f4ff;--text-muted: #94a3b8;--accent: #14b8a6;--accent-dim: #0f766e;--run: #f97316;--walk: #38bdf8;--danger: #f87171;--success: #4ade80;--border: rgba(148, 163, 184, .15);--radius: 16px;--nav-height: 64px;--safe-bottom: env(safe-area-inset-bottom, 0px);font-family:Segoe UI,system-ui,-apple-system,sans-serif;line-height:1.5;font-weight:400;color:var(--text);background-color:var(--bg);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*,*:before,*:after{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100dvh;background:radial-gradient(ellipse at top,#132038 0%,var(--bg) 55%)}#root{min-height:100dvh}button,select{font:inherit}button{cursor:pointer;border:none;background:none}h1,h2,h3,p{margin:0}ul{margin:0;padding:0;list-style:none}