:root{color-scheme:light;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;--bg:#eef4ff;--surface:#ffffff;--surface-soft:#f8fbff;--text:#0f172a;--muted:#64748b;--primary:#1a63e7;--primary-dark:#124bb4;--danger:#b42318;--success:#027a48;--warning:#92400e;--border:#d9e2f3;--shadow:0 18px 40px rgba(15,23,42,0.08)}*{box-sizing:border-box}body,html{min-height:100%}body{margin:0;background:radial-gradient(circle at top left,rgba(26,99,231,.18),transparent 28rem),linear-gradient(180deg,#f8fbff,var(--bg));color:var(--text)}button,input{font:inherit}button{border:0;border-radius:16px;background:var(--primary);color:#fff;min-height:48px;padding:12px 18px;font-weight:800;cursor:pointer}button:disabled{opacity:.62;cursor:not-allowed}input{width:100%;border:1px solid var(--border);border-radius:14px;background:#fff;color:var(--text);min-height:48px;padding:12px 14px}label{display:grid;grid-gap:6px;gap:6px;font-size:.9rem;font-weight:800;color:#334155}a{color:inherit}.public-main,main{width:min(100%,760px);margin:0 auto;padding:18px 16px 96px}.card,.hero-card{border:1px solid var(--border);border-radius:28px;background:rgba(255,255,255,.96);box-shadow:var(--shadow);padding:20px;margin:14px 0}.hero-card{background:linear-gradient(135deg,#0f172a,#1d4ed8);color:#fff}.hero-card p{color:#dbeafe}.hero-card button{background:#fff;color:var(--primary)}.login-card{margin-top:42px}.card h2,.hero-card h2,.login-card h1{margin:0 0 8px;font-size:clamp(2rem,8vw,3.4rem);line-height:1;letter-spacing:-.05em}.login-card form{display:grid;grid-gap:10px;gap:10px;margin-top:18px}.password-input-wrap{position:relative}.password-input-wrap input{padding-right:104px}.password-toggle-button{position:absolute;top:7px;right:7px;min-height:34px;border-radius:12px;padding:6px 10px;background:#e8f0ff;color:var(--primary);box-shadow:none}.app-header{width:min(100%,760px);margin:0 auto;padding:calc(14px + env(safe-area-inset-top)) 16px 8px;display:flex;align-items:center;justify-content:space-between;gap:12px}.app-header h1{margin:0;letter-spacing:-.04em}.app-header small,.muted{color:var(--muted)}.eyebrow{margin:0 0 4px;color:var(--primary);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;font-weight:900}.hero-card .eyebrow{color:#93c5fd}.bottom-nav{position:fixed;left:50%;bottom:10px;z-index:20;transform:translateX(-50%);width:min(calc(100% - 20px),720px);padding:8px max(8px,env(safe-area-inset-left)) calc(8px + env(safe-area-inset-bottom)) max(8px,env(safe-area-inset-right));display:grid;grid-template-columns:repeat(4,1fr);grid-gap:6px;gap:6px;border:1px solid var(--border);border-radius:24px;background:rgba(255,255,255,.94);box-shadow:0 18px 48px rgba(15,23,42,.18);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.bottom-nav a{text-align:center;text-decoration:none;padding:10px 4px;border-radius:16px;color:#475569;font-size:.86rem;font-weight:800}.bottom-nav a.active{background:#e8f0ff;color:var(--primary)}.status-strip{display:flex;align-items:center;justify-content:space-between;gap:10px;border:1px solid var(--border);border-radius:18px;background:rgba(255,255,255,.82);padding:10px 12px;color:#475569}.link-button,.status-strip strong{color:var(--primary)}.link-button{min-height:auto;padding:0;background:transparent}.ghost-button{border:1px solid var(--border);background:#fff;color:var(--primary)}.danger-button{background:var(--danger)}.full-width{width:100%;margin-top:14px}.button-row{display:flex;gap:10px;flex-wrap:wrap}.badge{display:inline-flex;align-items:center;border-radius:999px;background:#e8f0ff;color:var(--primary);padding:5px 9px;font-weight:800;font-size:.78rem}.warning{border:1px solid #fbbf24;border-radius:16px;background:#fffbeb;color:var(--warning);padding:10px 12px}.error{color:var(--danger)}.success{color:var(--success)}.feedback-message,.page-message{display:block;margin:10px 0}.section-heading{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.exercise-card,.history-item,.summary-card{border:1px solid var(--border);border-radius:20px;background:var(--surface-soft);padding:14px}.summary-card{display:grid;grid-gap:4px;gap:4px}.exercise-list,.history-list{display:grid;grid-gap:12px;gap:12px;margin-top:14px}.exercise-card{display:grid;grid-gap:14px;gap:14px}.exercise-card h3{margin:0}.note{border-left:3px solid var(--primary);padding-left:10px;color:#334155}.record-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:10px;gap:10px;align-items:end}.record-form button,.record-form small{grid-column:1/-1}.history-item{display:grid;grid-gap:4px;gap:4px}.update-card{border-color:#fbbf24}.consent-card ul{padding-left:18px}@media (max-width:520px){.app-header{align-items:flex-start}.app-header .ghost-button{min-height:40px;padding:8px 12px}.button-row,.section-heading{display:grid}.record-form{grid-template-columns:1fr}.card h2,.hero-card h2,.login-card h1{font-size:clamp(1.8rem,10vw,2.6rem)}}