:root{--blue:#1d61d5;--ink:#17212d;--muted:#657083;--line:#e5eaf0}*{box-sizing:border-box}body{margin:0;background:linear-gradient(180deg,#edf4ff,#f5f8fc 230px);font-family:Arial,sans-serif;color:var(--ink)}button,a{font:inherit}.shell{max-width:680px;margin:auto;padding:24px 18px 36px}header{display:flex;align-items:center;gap:13px;margin-bottom:22px}header img{width:58px;height:58px;border-radius:50%;object-fit:cover;box-shadow:0 10px 24px #174c9b3d}header p,.subscription p{margin:0 0 3px;color:var(--blue);font-size:12px;font-weight:700;letter-spacing:.06em}h1{margin:0;font-size:21px}h2{margin:0;font-size:17px}section{margin-top:26px}.welcome,.help{display:flex;gap:10px;padding:16px;border:1px solid #d8e6ff;border-radius:18px;background:#edf5ff;flex-direction:column}.welcome span,.help span{color:var(--muted);font-size:14px}.subscription{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:18px;border-radius:22px;background:linear-gradient(135deg,#1d3d74,#2858a6);color:#fff}.subscription h2{margin:3px 0 5px;font-size:21px}.subscription p{color:#b7cbff}.subscription span{color:#e0e9ff;line-height:1.35}.subscription-actions{display:grid;gap:8px;min-width:144px}.subscription button{border:0;border-radius:14px;background:#fff;color:#17386e;padding:12px 14px;font-weight:800}.subscription button.contact{background:#d8e7ff}.row{display:flex;gap:8px;overflow:auto;padding-top:12px}.row button{border:1px solid var(--line);border-radius:13px;background:white;padding:10px 14px;color:var(--muted);cursor:pointer;white-space:nowrap}.row button.selected{background:var(--blue);border-color:var(--blue);color:#fff}.heading{display:flex;justify-content:space-between}.heading span{color:var(--muted);font-size:14px}.lesson,.result{display:grid;grid-template-columns:60px 1fr auto;align-items:center;gap:12px;margin-top:10px;padding:14px;border:1px solid var(--line);border-radius:18px;background:#fff}.time{color:var(--blue);font-size:17px;font-weight:800;align-self:start}.lesson h3{margin:0;font-size:16px}.lesson p{margin:5px 0;color:var(--muted);font-size:13px}.free{color:#19865a;font-size:12px;font-weight:700}.book,.confirm{border:0;border-radius:11px;background:var(--blue);color:#fff;padding:10px 12px;font-size:13px;font-weight:700}.book:disabled{opacity:.55}.notice{margin-top:16px;padding:12px 14px;border-radius:13px;background:#e9f8ef;color:#177248;line-height:1.35}.confirmation{margin-top:18px;padding:17px;border:1px solid #bdd3ff;border-radius:18px;background:#eef5ff}.confirmation p{line-height:1.5;color:#43526a}.cancel{margin-left:8px;border:1px solid #a9bddf;border-radius:11px;padding:10px 12px;background:#fff;color:#31517f}.subscription-item{display:grid;gap:5px;margin-top:9px;padding:15px 17px;border-radius:18px;background:#fff;box-shadow:0 6px 22px #182d5714}.help{flex-direction:row;align-items:center;justify-content:space-between;border-color:var(--line);background:white}.help a{padding:10px 12px;border-radius:11px;color:var(--blue);background:#edf4ff;text-decoration:none;font-weight:700}@media(max-width:430px){.shell{padding:18px 13px}.subscription{align-items:flex-start;flex-direction:column}.subscription-actions{width:100%;grid-template-columns:1fr 1fr}.lesson{grid-template-columns:54px 1fr}.book{grid-column:2;justify-self:start}}