:root{--bg:#f5f6f8;--card:#fff;--ink:#1a1d29;--muted:#6b7280;--line:#e5e7eb;--brand:#5b5bd6;--brand-ink:#fff;--ok:#16a34a;--danger:#dc2626}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Apple SD Gothic Neo,sans-serif;-webkit-font-smoothing:antialiased}a{color:var(--brand)}.container{max-width:860px;margin:0 auto;padding:40px 20px}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:28px;box-shadow:0 1px 2px rgba(0,0,0,.04)}.h1{font-size:24px;font-weight:700;margin:0 0 6px}.sub{margin:0 0 24px;font-size:15px}.label,.sub{color:var(--muted)}.label{font-size:13px;font-weight:600;margin:18px 0 8px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(96px,1fr));grid-gap:8px;gap:8px}.chip{border:1px solid var(--line);background:#fff;border-radius:10px;padding:10px 4px;font-size:14px;cursor:pointer;text-align:center;transition:all .12s}.chip.active,.chip:hover{border-color:var(--brand)}.chip.active{background:var(--brand);color:var(--brand-ink)}.chip:disabled{opacity:.4;cursor:not-allowed}.field{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-size:15px;font-family:inherit}.field:focus{outline:2px solid var(--brand);border-color:var(--brand)}.btn{width:100%;background:var(--brand);color:#fff;border:none;border-radius:10px;padding:14px;font-size:16px;font-weight:600;cursor:pointer;margin-top:20px}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.secondary{background:#fff;color:var(--brand);border:1px solid var(--brand)}.empty{font-size:14px;padding:16px 0}.empty,.note{color:var(--muted)}.note{font-size:13px;margin-top:6px}.banner{padding:12px 16px;border-radius:10px;font-size:14px;margin-bottom:16px}.banner.ok{background:#ecfdf5;color:#065f46}.banner.err{background:#fef2f2;color:#991b1b}.success-icon{font-size:44px}table.list{width:100%;border-collapse:collapse;font-size:14px}table.list td,table.list th{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line)}table.list th{color:var(--muted);font-weight:600;font-size:12px}.pill{font-size:11px;padding:2px 8px;border-radius:999px;background:#eef2ff;color:var(--brand)}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.muted-link{color:var(--muted);font-size:13px;text-decoration:none}:root{--bk-blue:#1f6bff;--bk-blue-soft:#e8f0ff}.bk-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:32px 16px}.bk-card{width:100%;max-width:960px;min-height:560px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 8px 40px rgba(0,0,0,.06);display:flex;overflow:hidden}.bk-side{width:300px;flex-shrink:0;padding:28px 26px;border-right:1px solid var(--line);position:relative}.bk-back{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:#fff;font-size:18px;cursor:pointer;margin-bottom:18px;color:#333}.bk-promo{background:linear-gradient(135deg,#1f6bff,#4f8bff);color:#fff;border-radius:10px;padding:14px 16px;font-size:13px;font-weight:600;line-height:1.5;display:flex;flex-direction:column}.bk-promo span{font-size:11px;opacity:.8;font-weight:500;margin-top:4px}.bk-host{gap:10px;margin-top:22px}.bk-avatar,.bk-host{display:flex;align-items:center}.bk-avatar{width:40px;height:40px;border-radius:50%;background:var(--bk-blue);color:#fff;justify-content:center;font-weight:700}.bk-hostname{font-size:16px;font-weight:600}.bk-title{font-size:22px;font-weight:800;margin:18px 0 14px;line-height:1.35}.bk-desc{color:var(--muted);font-size:14px;line-height:1.6;white-space:pre-line}.bk-when{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:600;margin-top:16px;color:#1a1d29}.bk-when-ico{font-size:16px}.bk-duration{color:var(--muted);font-size:13px;margin-top:10px}.bk-cal{flex:1 1;padding:30px 28px;border-right:1px solid var(--line)}.bk-h{font-size:19px;font-weight:800;margin:0 0 22px}.bk-cal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.bk-month{font-size:15px;font-weight:700}.bk-nav button{border:none;background:none;font-size:22px;cursor:pointer;color:#333;width:34px;height:34px;border-radius:8px;line-height:1}.bk-nav button:hover:not(:disabled){background:#f1f3f5}.bk-nav button:disabled{color:#d0d4da;cursor:default}.bk-week{display:grid;grid-template-columns:repeat(7,1fr);margin-bottom:6px}.bk-week span{text-align:center;font-size:12px;color:var(--muted);padding:6px 0}.bk-days{display:grid;grid-template-columns:repeat(7,1fr);grid-gap:4px 0;gap:4px 0}.bk-day{aspect-ratio:1;border:none;border-radius:50%;font-size:14px;display:flex;align-items:center;justify-content:center;margin:0 auto;width:40px;height:40px}.bk-day,.bk-day.empty{background:none}.bk-day.off{color:#c2c7cf;text-decoration:line-through;cursor:not-allowed}.bk-day.on{color:var(--bk-blue);font-weight:700;cursor:pointer;background:var(--bk-blue-soft)}.bk-day.on:hover{background:#d6e3ff}.bk-day.sel{background:var(--bk-blue)!important;color:#fff!important}.bk-day.today{position:relative}.bk-day.today:after{content:"";position:absolute;bottom:5px;left:50%;transform:translateX(-50%);width:4px;height:4px;border-radius:50%;background:currentColor}.bk-tz{margin-top:22px;font-size:13px;color:var(--muted)}.bk-times{width:240px;flex-shrink:0;padding:30px 22px;display:flex;flex-direction:column}.bk-subdate{margin:-12px 0 12px}.bk-hint,.bk-subdate{font-size:13px;color:var(--muted)}.bk-timelist{overflow-y:auto;display:flex;flex-direction:column;gap:8px;max-height:420px;padding-right:2px}.bk-slot{display:flex;align-items:center;justify-content:space-between;border:1px solid var(--bk-blue);color:var(--bk-blue);border-radius:8px;padding:13px 16px;font-size:15px;font-weight:600;cursor:pointer}.bk-slot:hover{background:var(--bk-blue-soft)}.bk-slot.active{background:var(--bk-blue);color:#fff}.bk-pick{background:#fff;color:var(--bk-blue);border:none;border-radius:6px;padding:6px 16px;font-size:14px;font-weight:700;cursor:pointer}.bk-form{flex:1 1;padding:30px 34px;overflow-y:auto}.bk-label{display:block;font-size:14px;font-weight:600;margin:18px 0 8px}.bk-label b{color:var(--bk-blue)}.bk-input{width:100%;border:1px solid var(--line);border-radius:8px;padding:12px 14px;font-size:15px;font-family:inherit}.bk-input:focus{outline:none;border-color:var(--bk-blue);box-shadow:0 0 0 3px var(--bk-blue-soft)}.bk-radio{display:flex;align-items:center;gap:10px;padding:10px 0;font-size:15px;cursor:pointer}.bk-radio input{width:18px;height:18px;accent-color:var(--bk-blue)}.bk-error{background:#fef2f2;color:#991b1b;border-radius:8px;padding:11px 14px;font-size:14px;margin-bottom:6px}.bk-submit{width:100%;margin-top:26px;background:var(--bk-blue);color:#fff;border:none;border-radius:8px;padding:15px;font-size:16px;font-weight:700;cursor:pointer}.bk-submit:disabled{opacity:.5;cursor:not-allowed}.bk-done{flex:1 1;padding:60px 40px;text-align:center}.bk-done-ico{font-size:52px}.bk-done-when{font-size:16px;font-weight:600;margin:8px 0 6px}@media (max-width:820px){.bk-card{flex-direction:column;min-height:0}.bk-cal,.bk-side,.bk-times{width:100%;border-right:none;border-bottom:1px solid var(--line)}.bk-times{max-height:none}}