.nntb {
--nntb-ink: #000;
--nntb-muted: #6b6b6b;
--nntb-line: #d9d9d9;
--nntb-soft: #f5f5f5;
--nntb-error: #b00020;
max-width: 980px;
margin: 0 auto;
font-size: 15px;
line-height: 1.6;
color: var(--nntb-ink);
}
.nntb *, .nntb *::before, .nntb *::after { box-sizing: border-box; }
.nntb [hidden] { display: none !important; }
.nntb button { font: inherit; color: inherit; cursor: pointer; }
.nntb button:disabled { cursor: default; }
.nntb :focus-visible { outline: 2px solid var(--nntb-ink); outline-offset: 2px; }
.nntb-welcome { max-width: 640px; margin: 0 auto 28px; text-align: center; color: var(--nntb-muted); }
.nntb-small { font-size: 13px; color: var(--nntb-muted); text-align: center; margin-top: 24px; }
.nntb-small a { color: inherit; } .nntb-tiles { list-style: none !important; margin: 0 !important; padding: 0 !important; display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.nntb-tiles li { margin: 0 !important; padding: 0 !important; list-style: none !important; }
.nntb-tiles li::before { display: none !important; }
.nntb-tile {
display: flex; flex-direction: column; gap: 6px; width: 100%; height: 100%;
padding: 22px 22px 18px; text-align: left; background: #fff;
border: 1px solid var(--nntb-line); border-radius: 0; text-decoration: none !important; color: var(--nntb-ink) !important;
transition: border-color .15s, box-shadow .15s;
}
.nntb-tile:hover { border-color: var(--nntb-ink); box-shadow: 0 2px 10px rgba(0,0,0,.06); }
.nntb-tile-title { font-weight: 700; font-size: 17px; line-height: 1.3; }
.nntb-tile-meta { font-size: 13px; color: var(--nntb-muted); }
.nntb-tile-desc { font-size: 14px; color: #333; flex: 1; }
.nntb-tile-cta { align-self: flex-start; margin-top: 8px; padding: 6px 14px; border: 1px solid var(--nntb-ink); font-size: 14px; font-weight: 600; }
.nntb-tile:hover .nntb-tile-cta { background: var(--nntb-ink); color: #fff; }
.nntb-tile-link .nntb-tile-cta::after { content: " ↗"; } .nntb-head { margin-bottom: 16px; }
.nntb-back { background: none; border: 0; padding: 4px 0; color: var(--nntb-muted); font-size: 14px; text-decoration: underline; }
.nntb-back:hover { color: var(--nntb-ink); }
.nntb-title { margin: 8px 0 4px !important; padding: 0 !important; }
.nntb-meta { margin: 0; color: var(--nntb-muted); font-size: 14px; }
.nntb-desc { color: #333; max-width: 680px; } .nntb-picker { display: grid; grid-template-columns: minmax(280px, 380px) 1fr; gap: 32px; align-items: start; margin-top: 8px; }
.nntb-cal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.nntb-cal-head h3, .nntb-slots-title { margin: 0 !important; padding: 0 !important; font-family: inherit !important; font-size: 17px !important; font-weight: 700 !important; }
.nntb-nav { width: 40px; height: 40px; border: 1px solid var(--nntb-line); background: #fff; font-size: 22px; line-height: 1; }
.nntb-nav:disabled { opacity: .3; }
.nntb-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.nntb-wd { text-align: center; font-size: 12px; color: var(--nntb-muted); padding: 4px 0; }
.nntb-day { aspect-ratio: 1; min-height: 40px; border: 0; background: none; border-radius: 50%; color: #bbb; font-size: 15px; }
.nntb-day.is-free { color: var(--nntb-ink); font-weight: 700; background: var(--nntb-soft); }
.nntb-day.is-free:hover { background: #e6e6e6; }
.nntb-day.is-selected { background: var(--nntb-ink) !important; color: #fff; }
.nntb-loading, .nntb-hint { color: var(--nntb-muted); }
.nntb-error, .nntb-msg, .nntb-flash { color: var(--nntb-error); }
.nntb-flash { border: 1px solid var(--nntb-error); padding: 10px 14px; }
.nntb-slots-title { margin-bottom: 12px !important; }
.nntb-slot-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: 8px; margin-top: 12px; }
.nntb-slot { padding: 12px 8px; border: 1px solid var(--nntb-ink); background: #fff; font-weight: 600; }
.nntb-slot:hover { background: var(--nntb-ink); color: #fff; } .nntb-summary { background: var(--nntb-soft); padding: 14px 18px; margin: 12px 0 16px; }
.nntb-notes { border-left: 3px solid var(--nntb-ink); padding: 4px 0 4px 14px; margin-bottom: 20px; font-size: 14px; }
.nntb-notes p { margin: 0 0 6px; padding: 0; }
.nntb-form { max-width: 640px; }
.nntb-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.nntb-field { margin-bottom: 16px; }
.nntb-field > label, .nntb-label { display: block; font-weight: 600; font-size: 14px; margin-bottom: 4px; }
.nntb-req { color: var(--nntb-muted); }
.nntb-form input[type=text], .nntb-form input[type=email], .nntb-form input[type=tel], .nntb-form input[type=date], .nntb-form textarea {
width: 100%; padding: 11px 12px; border: 1px solid #bbb; border-radius: 0; background: #fff; font: inherit; font-size: 16px; color: var(--nntb-ink);
}
.nntb-form input:focus, .nntb-form textarea:focus { border-color: var(--nntb-ink); outline: none; }
.nntb-radios { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.nntb-radio { font-weight: 400 !important; font-size: 15px; display: inline-flex !important; gap: 8px; align-items: flex-start; }
.nntb-check { font-weight: 400 !important; font-size: 14px; display: grid !important; grid-template-columns: auto 1fr; gap: 10px; align-items: start; }
.nntb-radio input, .nntb-check input { margin-top: 5px; width: 18px; height: 18px; accent-color: #000; }
.nntb-check a { color: inherit; text-decoration: underline; }
.has-error input, .has-error textarea { border-color: var(--nntb-error) !important; }
.nntb-ferr { color: var(--nntb-error); font-size: 13px; margin: 4px 0 0; padding: 0; }
.nntb-ferr:empty { display: none; }
.nntb-hp { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; overflow: hidden; }
.nntb-btn { display: inline-block; padding: 14px 28px; background: var(--nntb-ink); color: #fff !important; border: 1px solid var(--nntb-ink); font-weight: 600; font-size: 16px; }
.nntb-btn:hover { background: #fff; color: var(--nntb-ink) !important; }
.nntb-btn:disabled { opacity: .6; }
.nntb-done, .nntb-card { max-width: 640px; margin: 0 auto; text-align: center; }
.nntb-done .nntb-summary, .nntb-card .nntb-summary { text-align: left; } @media (max-width: 720px) {
.nntb-tiles { grid-template-columns: 1fr; gap: 12px; }
.nntb-tile { padding: 18px; }
.nntb-picker { grid-template-columns: 1fr; gap: 20px; }
.nntb-row { grid-template-columns: 1fr; gap: 0; }
.nntb-btn { width: 100%; }
.nntb-slot-list { grid-template-columns: repeat(3, 1fr); }
} .nntb-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin: 20px 0; }
.nntb-btn-ghost { background: #fff; color: var(--nntb-ink) !important; }
.nntb-btn-ghost:hover { background: var(--nntb-ink); color: #fff !important; }
.nntb-old { color: var(--nntb-muted); font-size: 14px; }
.nntb-msg.nntb-ok { color: var(--nntb-ink); font-weight: 600; }
@media (max-width: 720px) { .nntb-actions .nntb-btn { width: 100%; } } .nntb-intro { display: flex; align-items: center; gap: 32px; max-width: 760px; margin: 0 auto 32px; }
.nntb-photo { flex: 0 0 240px; margin: 0 !important; padding: 0; }
.nntb-photo img { display: block; width: 100%; height: auto; aspect-ratio: 4 / 5; object-fit: cover; object-position: 45% 20%; border-radius: 0; }
.nntb-intro .nntb-welcome { margin: 0; text-align: left; flex: 1; }
@media (max-width: 720px) {
.nntb-intro { flex-direction: column; gap: 18px; margin-bottom: 24px; }
.nntb-photo { flex-basis: auto; width: 180px; }
.nntb-intro .nntb-welcome { text-align: center; }
} .nntb-courses { max-width: 760px; margin: 0; }
.nntb-course { border: 1px solid var(--nntb-line); padding: 22px; margin: 0 0 20px; background: #fff; }
.nntb-course-title { margin: 0 0 6px !important; padding: 0 !important; }
.nntb-course-meta { margin: 0 0 8px !important; padding: 0 !important; }
.nntb-course-status { display: inline-block; margin: 0 0 12px !important; padding: 4px 12px !important; border: 1px solid var(--nntb-ink); font-weight: 600; font-size: 14px; }
.nntb-course-status.is-full { border-color: var(--nntb-muted); color: var(--nntb-muted); }
.nntb-course-desc { margin-bottom: 12px; }
.nntb-course-form { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--nntb-line); }
.nntb-form-h { font-family: inherit !important; font-size: 16px !important; font-weight: 700 !important; margin: 18px 0 10px !important; padding: 0 !important; }
.nntb-form-h:first-child { margin-top: 0 !important; }
.nntb-fhint { font-size: 13px; color: var(--nntb-muted); margin: 4px 0 0; padding: 0; }
.nntb-courses .nntb-done { text-align: left; margin: 0; }
@media (max-width: 720px) { .nntb-course { padding: 16px; } }