/* ==========================================================================
   Training booking dialog (/training/). Prefix .sbtb-  ·  behaviour: js/training-booking.js
   Desktop: centred panel. Phones: full-height sheet.
   ========================================================================== */
html.sbtb-lock { overflow: hidden; }
.sbtb { --tb-navy: #0A1F38; --tb-ink: #0B63BE; --tb-orange: #FF8A00; --tb-muted: #64748B; --tb-line: #D5DEE8; --tb-err: #E5452F;
  width: min(760px, calc(100vw - 32px)); max-width: none; max-height: calc(100dvh - 48px); margin: auto; padding: 0; border: 0; border-radius: 18px;
  background: #FFFFFF; color: var(--sb-charcoal, #1F2937); font-family: var(--sb-font-body); box-shadow: 0 40px 90px -30px rgba(7, 28, 51, .55); overflow: hidden; }
.sbtb::backdrop { background: rgba(7, 28, 51, .62); backdrop-filter: blur(3px); }
.sbtb[open] { animation: sbtb-in .25s ease-out; }
@keyframes sbtb-in { from { opacity: 0; transform: translateY(16px) scale(.985); } }
.sbtb *, .sbtb *::before, .sbtb *::after { box-sizing: border-box; }
.sbtb :where(h2, h3, p, ol, dl, dd, fieldset) { margin: 0; }
.sbtb-panel { position: relative; max-height: calc(100dvh - 48px); overflow-y: auto; overscroll-behavior: contain; padding: 36px 40px 32px; }
.sbtb-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.sbtb-close { position: absolute; top: 18px; right: 18px; z-index: 2; display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; border: 0; border-radius: 50%; background: #F1F5F9; color: var(--tb-navy); font-size: 1.125rem; cursor: pointer; transition: background-color .2s; }
.sbtb-close:hover { background: #E2E8F0; }
.sbtb-close:focus-visible, .sbtb-btn:focus-visible, .sbtb-done:focus-visible { outline: 3px solid #8EC0FF; outline-offset: 3px; }

.sbtb-head { padding-right: 48px; }
.sbtb-eyebrow { display: inline-flex; align-items: center; gap: 12px; font: 600 .75rem/1 var(--sb-font-mono); letter-spacing: .2em; text-transform: uppercase; color: var(--tb-navy); }
.sbtb-eyebrow span { width: 32px; height: 2px; background: var(--tb-orange); }
.sbtb-title { margin-top: 14px; font: 800 clamp(1.625rem, 2.6vw, 2rem)/1.12 var(--sb-font-heading); font-stretch: 100%; letter-spacing: -.025em; color: var(--tb-navy); }
.sbtb-lede { margin-top: 8px; font-size: 1rem; line-height: 1.5; color: var(--tb-muted); }

.sbtb-form { display: grid; gap: 26px; }
.sbtb-group { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 20px; padding: 0; border: 0; min-width: 0; }
.sbtb-legend { grid-column: 1 / -1; display: flex; align-items: center; gap: 12px; margin-bottom: 18px; padding: 0; font: 700 1.0625rem/1.2 var(--sb-font-heading); font-stretch: 100%; color: var(--tb-navy); }
.sbtb-legend b { display: inline-flex; align-items: center; justify-content: center; width: 26px; height: 26px; border-radius: 50%; background: #FFF1E3; color: #C2410C; font: 700 .8125rem/1 var(--sb-font-mono); }
.sbtb-field { display: grid; gap: 8px; align-content: start; min-width: 0; }
.sbtb-field[hidden] { display: none; }
.sbtb-field--full { grid-column: 1 / -1; }
.sbtb-field > label, .sbtb-label { font-weight: 600; font-size: .9375rem; color: var(--tb-navy); }
.sbtb-field > label > span, .sbtb-label > span { color: var(--tb-err); }
.sbtb-field > label small { margin-left: 6px; font-weight: 500; font-size: .8125rem; color: var(--tb-muted); }
.sbtb-hint { font: 500 .8125rem/1.3 var(--sb-font-mono); color: var(--tb-ink); }

.sbtb input:where([type="text"], [type="email"], [type="tel"], [type="number"]), .sbtb select, .sbtb textarea {
  width: 100%; min-height: 50px; padding: 0 16px; border-radius: 10px; border: 1px solid var(--tb-line); background: #FFFFFF;
  font: 400 1rem/1.4 var(--sb-font-body); color: var(--tb-navy); transition: border-color .2s, box-shadow .2s; }
.sbtb textarea { min-height: 92px; padding: 12px 16px; resize: vertical; }
.sbtb select { appearance: none; padding-right: 42px; background: #FFFFFF url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%230A1F38' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 16px center / 12px; cursor: pointer; }
.sbtb select:invalid { color: #94A3B8; }
.sbtb ::placeholder { color: #94A3B8; }
.sbtb :where(input, select, textarea):focus { outline: none; border-color: var(--tb-ink); box-shadow: 0 0 0 4px rgba(11, 99, 190, .14); }
.sbtb [aria-invalid="true"]:where(input, select, textarea) { border-color: var(--tb-err); box-shadow: 0 0 0 4px rgba(229, 69, 47, .1); }
.sbtb-phone { display: flex; }
.sbtb-phone select { width: auto; flex: 0 0 auto; padding: 0 34px 0 14px; border-radius: 10px 0 0 10px; border-right: 0; background-position: right 12px center; font-weight: 600; }
.sbtb-phone input { min-width: 0; border-radius: 0 10px 10px 0; }

/* segmented choices (who, format) */
.sbtb-seg { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; border-radius: 12px; }
.sbtb-seg--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.sbtb-seg label { position: relative; cursor: pointer; }
.sbtb-seg input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.sbtb-seg span { display: flex; align-items: center; justify-content: center; gap: 10px; min-height: 50px; padding: 0 12px; border-radius: 10px; border: 1px solid var(--tb-line); background: #FFFFFF; font-weight: 600; font-size: .9375rem; color: var(--tb-navy); text-align: center; transition: border-color .2s, background-color .2s, box-shadow .2s; }
.sbtb-seg span i { color: var(--tb-muted); transition: color .2s; }
.sbtb-seg label:hover span { border-color: #A9C4E4; }
.sbtb-seg input:checked + span { border-color: var(--tb-ink); background: #EEF5FD; box-shadow: inset 0 0 0 1px var(--tb-ink); }
.sbtb-seg input:checked + span i { color: var(--tb-ink); }
.sbtb-seg input:focus-visible + span { box-shadow: 0 0 0 4px rgba(11, 99, 190, .2); }
.sbtb-seg[aria-invalid="true"] span { border-color: var(--tb-err); }

.sbtb-consent { display: flex; align-items: flex-start; gap: 12px; padding: 14px 16px; border-radius: 10px; background: #F6F9FC; border: 1px solid #EDF1F6; font-size: .9375rem; line-height: 1.45; color: #334155; cursor: pointer; }
.sbtb-consent input { flex-shrink: 0; width: 20px; height: 20px; margin: 1px 0 0; accent-color: var(--tb-ink); cursor: pointer; }
.sbtb-consent a { color: var(--tb-ink); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; }
.sbtb-consent[aria-invalid="true"] { border-color: var(--tb-err); background: #FDF3F1; }
.sbtb-hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.sbtb-status { padding: 12px 16px; border-radius: 10px; font-weight: 600; font-size: .9375rem; }
.sbtb-status[hidden] { display: none; }
.sbtb-status.is-err { background: #FDEEEC; color: #B42318; }
.sbtb-status.is-info { background: #EAF2FC; color: #0B4F96; }
.sbtb-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; }
.sbtb-btn { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 54px; padding: 0 30px; border: 0; border-radius: 8px; background: linear-gradient(180deg, #FF9A1F, #FF8400); color: var(--tb-navy); font: 700 1.0625rem/1 var(--sb-font-heading); font-stretch: 100%; cursor: pointer; box-shadow: 0 12px 26px -14px rgba(255, 138, 0, .95); transition: transform .2s, opacity .2s; }
.sbtb-btn:hover { transform: translateY(-1px); }
.sbtb-btn i { font-size: .875rem; transition: transform .2s; } .sbtb-btn:hover i { transform: translateX(4px); }
.sbtb-btn[disabled] { opacity: .65; cursor: progress; transform: none; }
.sbtb-btn--ghost { background: #FFFFFF; border: 1px solid var(--tb-line); box-shadow: none; }
.sbtb-note { display: flex; align-items: center; gap: 8px; font-size: .875rem; color: var(--tb-muted); }
.sbtb-note i { color: #16A34A; }

/* success */
.sbtb-done { display: grid; justify-items: start; gap: 0; outline: none; }
.sbtb-done[hidden], .sbtb-form[hidden] { display: none; }
.sbtb-done__icon { display: flex; align-items: center; justify-content: center; width: 56px; height: 56px; border-radius: 50%; background: #EAF7EF; color: #16A34A; font-size: 1.5rem; }
.sbtb-done .sbtb-title { margin-top: 18px; }
.sbtb-summary { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; width: 100%; margin-top: 22px; border-radius: 12px; overflow: hidden; border: 1px solid #E6ECF3; background: #E6ECF3; }
.sbtb-summary div { padding: 14px 16px; background: #F8FAFC; }
.sbtb-summary div:last-child:nth-child(odd) { grid-column: 1 / -1; }
.sbtb-summary dt { font: 600 .6875rem/1.2 var(--sb-font-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--tb-muted); }
.sbtb-summary dd { margin-top: 6px; font-weight: 600; color: var(--tb-navy); }
.sbtb-next__title { margin-top: 26px; font: 700 1.0625rem/1.2 var(--sb-font-heading); font-stretch: 100%; color: var(--tb-navy); }
.sbtb-next { display: grid; gap: 10px; margin-top: 12px; padding-left: 20px; color: #334155; line-height: 1.5; }
.sbtb-next li::marker { font-weight: 700; color: var(--tb-orange); }
.sbtb-done .sbtb-btn { margin-top: 26px; }

@media (max-width: 767px) {
  .sbtb { width: 100vw; max-height: 100dvh; height: 100dvh; border-radius: 0; }
  .sbtb-panel { max-height: 100dvh; height: 100%; padding: 28px 16px 24px; }
  .sbtb-close { top: 14px; right: 12px; }
  .sbtb-group { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .sbtb-seg--3 { grid-template-columns: minmax(0, 1fr); }
  .sbtb-seg--3 span { justify-content: flex-start; padding: 0 16px; }
  .sbtb-btn { width: 100%; }
  .sbtb-summary { grid-template-columns: minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  .sbtb[open] { animation: none; }
  .sbtb-btn, .sbtb-btn i, .sbtb-seg span, .sbtb-close { transition: none; }
}