/* learn.tegritywork.com — Tegrity brand tokens (warm mono ramp) + page styles */
@font-face { font-family: "Inter"; src: url("../fonts/InterVariable.woff2") format("woff2"); font-weight: 100 900; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url("../fonts/JetBrainsMono-Regular.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url("../fonts/JetBrainsMono-Medium.woff2") format("woff2"); font-weight: 500; font-display: swap; }

:root {
  --bg: #FAFAF7; --ink: #050505; --body: #1A1A1A; --fn: #767369; --hair: #B8B6B0; --surface: #E8E6E0; --paper2: #F2F1EC;
  --green: #15803D; --blue: #1E3A8A; --orange: #B45309; --red: #B91C1C;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --radius: 4px; --container: 1120px; --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --ease: cubic-bezier(0.2, 0, 0, 1); --fast: 140ms; --dur: 320ms;
}
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { font-family: var(--font); font-size: 1.0625rem; line-height: 1.6; color: var(--body); background: var(--bg); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--ink); color: var(--bg); }
h1, h2, h3 { line-height: 1.08; text-wrap: balance; color: var(--ink); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 650; letter-spacing: -0.015em; }
h3 { font-size: 1.125rem; font-weight: 600; }
p { max-width: 62ch; text-wrap: pretty; }
.mono { font-family: var(--mono); }
.muted { color: var(--fn); }
.eyebrow { font-family: var(--mono); font-size: 0.75rem; font-weight: 500; letter-spacing: 0.1em; text-transform: uppercase; color: var(--fn); margin-bottom: 0.9rem; }
.eyebrow--on-dark { color: #9a968c; }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--green); margin-right: 0.55rem; vertical-align: 1px; box-shadow: 0 0 0 3px color-mix(in srgb, var(--green) 18%, transparent); }
body.is-soldout .dot { background: var(--red); box-shadow: 0 0 0 3px color-mix(in srgb, var(--red) 18%, transparent); }
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(3.5rem, 8vw, 6.5rem); }
.section__title { margin-bottom: 2rem; }
[hidden] { display: none !important; }

/* wordmark */
.wordmark { font-family: var(--font); font-weight: 900; font-size: 1.2rem; letter-spacing: -0.02em; color: var(--ink); display: inline-flex; align-items: baseline; }
.wordmark .pipe { color: var(--fn); font-weight: 700; margin-inline: 0.06em; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.6rem; font-family: var(--font); font-size: 0.9375rem; font-weight: 600; height: 48px; padding: 0 1.4rem; border-radius: var(--radius); border: 1px solid var(--ink); cursor: pointer; white-space: nowrap; transition: background var(--fast) var(--ease), color var(--fast) var(--ease), transform var(--fast) var(--ease), opacity var(--fast); }
.btn--primary { background: var(--ink); color: var(--bg); }
.btn--primary:hover { background: #1f1f1f; }
.btn--paper { background: var(--bg); color: var(--ink); border-color: var(--bg); }
.btn--paper:hover { background: #fff; }
.btn--sm { height: 40px; padding: 0 1rem; font-size: 0.875rem; }
.btn--lg { height: 56px; padding: 0 1.75rem; font-size: 1.0625rem; }
.btn--block { width: 100%; }
.btn .arrow { transition: transform var(--fast) var(--ease); }
.btn:hover .arrow { transform: translateX(3px); }
.btn:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
.btn[disabled], .btn.is-busy { opacity: 0.55; cursor: default; }
.btn.is-busy { position: relative; color: transparent; }
.btn.is-busy::after { content: ""; position: absolute; width: 18px; height: 18px; border: 2px solid currentColor; border-color: var(--bg) transparent var(--bg) transparent; border-radius: 50%; animation: spin 0.8s linear infinite; }
.btn--paper.is-busy::after { border-color: var(--ink) transparent var(--ink) transparent; }
@keyframes spin { to { transform: rotate(360deg); } }

/* top bar */
.top { position: sticky; top: 0; z-index: 40; background: color-mix(in srgb, var(--bg) 86%, transparent); -webkit-backdrop-filter: saturate(1.4) blur(14px); backdrop-filter: saturate(1.4) blur(14px); border-bottom: 1px solid var(--hair); }
.top__row { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.top__right { display: flex; align-items: center; gap: 1rem; }
.top__meta { font-size: 0.8125rem; color: var(--fn); }

/* hero */
.hero { padding-block: clamp(3rem, 7vw, 6rem) clamp(3rem, 6vw, 5rem); border-bottom: 1px solid var(--hair); }
.hero__grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(320px, 0.9fr); gap: clamp(2rem, 6vw, 5rem); align-items: start; }
.hero__title { font-size: clamp(2.25rem, 4.6vw, 3.6rem); font-weight: 800; letter-spacing: -0.03em; line-height: 1.02; }
.hero__title span { display: block; }
.hero__sub { font-size: clamp(1.0625rem, 1.6vw, 1.25rem); margin-top: 1.5rem; max-width: 52ch; color: var(--body); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem 1.5rem; align-items: center; margin-top: 2.25rem; }
.hero__alt { font-size: 0.9375rem; color: var(--fn); border-bottom: 1px solid var(--hair); padding-bottom: 1px; transition: color var(--fast), border-color var(--fast); }
.hero__alt:hover { color: var(--ink); border-color: var(--ink); }
.hero__fine { margin-top: 1.75rem; font-size: 0.8125rem; color: var(--fn); max-width: none; }

/* ticket card */
.ticket { position: relative; background: var(--paper2); border: 1px solid var(--hair); border-radius: var(--radius); padding: 1.5rem; align-self: start; }
.ticket__head { position: relative; display: flex; justify-content: space-between; align-items: baseline; padding-bottom: 1rem; border-bottom: 1px dashed var(--hair); }
.ticket__label { font-size: 0.75rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--fn); font-weight: 500; }
.ticket__price { font-size: 1.75rem; font-weight: 500; color: var(--ink); letter-spacing: -0.02em; }
.ticket__rows { display: grid; gap: 0.85rem; padding-block: 1.25rem; }
.ticket__rows > div { display: grid; grid-template-columns: 4.5rem 1fr; gap: 0.75rem; align-items: baseline; }
.ticket__rows dt { font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fn); font-weight: 500; }
.ticket__rows dd { font-size: 0.9375rem; color: var(--ink); line-height: 1.45; }
.ticket__rows dd .muted { font-size: 0.875rem; }
.ticket__cta { padding-top: 1.25rem; border-top: 1px dashed var(--hair); }
.ticket__fine { font-size: 0.8125rem; color: var(--fn); margin-top: 0.75rem; text-align: center; }
.ticket__notch { position: absolute; width: 18px; height: 18px; background: var(--bg); border: 1px solid var(--hair); border-radius: 50%; bottom: -9px; }
.ticket__notch--l { left: calc(-1.5rem - 10px); clip-path: inset(0 0 0 50%); }
.ticket__notch--r { right: calc(-1.5rem - 10px); clip-path: inset(0 50% 0 0); }
.seatgrid { display: inline-flex; gap: 3px; margin-top: 0.5rem; }
.seatgrid i { width: 10px; height: 14px; border: 1px solid var(--ink); border-radius: 2px; background: transparent; }
.seatgrid i.is-sold { background: var(--ink); }
.seatgrid--dark i { border-color: #6d6a63; }
.seatgrid--dark i.is-sold { background: var(--bg); border-color: var(--bg); }
.ticket__rows dd .seatgrid { display: flex; }

/* cancel notice */
.notice { background: var(--paper2); border-bottom: 1px solid var(--hair); padding-block: 0.9rem; }
.notice p { font-size: 0.9375rem; color: var(--body); max-width: none; }

/* who */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 6vw, 5rem); align-items: start; }
.roles { list-style: none; padding: 0; margin: 1.75rem 0 0; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.roles li { font-family: var(--mono); font-size: 0.8125rem; padding: 0.45rem 0.8rem; border: 1px solid var(--hair); border-radius: 999px; color: var(--body); background: var(--bg); }
.calm { border-left: 1px solid var(--hair); padding-left: clamp(1.25rem, 3vw, 2.5rem); display: grid; gap: 1rem; }
.calm__lead { font-size: 1.25rem; font-weight: 600; color: var(--ink); letter-spacing: -0.01em; }
.calm__src { display: block; font-size: 0.75rem; margin-top: 0.4rem; }
.calm__close { color: var(--ink); }

/* outcomes */
.outcomes { list-style: none; padding: 0; counter-reset: out; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.outcomes li { counter-increment: out; border-top: 1px solid var(--ink); padding-top: 1.25rem; }
.outcomes li::before { content: "0" counter(out); font-family: var(--mono); font-size: 0.75rem; color: var(--fn); letter-spacing: 0.08em; display: block; margin-bottom: 0.9rem; }
.outcomes h3 { margin-bottom: 0.5rem; }
.outcomes p { font-size: 0.9375rem; color: var(--body); }

/* agenda */
.section--agenda { background: var(--paper2); border-block: 1px solid var(--hair); }
.agenda { list-style: none; padding: 0; display: grid; gap: 0; border-top: 1px solid var(--hair); }
.agenda li { display: grid; grid-template-columns: 5rem 6rem 1fr; gap: 1.5rem; padding: 1.4rem 0; border-bottom: 1px solid var(--hair); align-items: baseline; }
.agenda__time { font-family: var(--mono); font-size: 0.9375rem; color: var(--ink); font-weight: 500; }
.agenda__mins { font-family: var(--mono); font-size: 0.75rem; color: var(--fn); letter-spacing: 0.06em; text-transform: uppercase; }
.agenda h3 { margin-bottom: 0.35rem; }
.agenda p { font-size: 0.9375rem; }

/* examples */
.examples { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.75rem 2.5rem; }
.examples li { display: grid; grid-template-columns: 7.5rem 1fr; gap: 1rem; padding: 0.9rem 0; border-bottom: 1px solid var(--hair); align-items: baseline; }
.examples__role { font-family: var(--mono); font-size: 0.8125rem; color: var(--ink); font-weight: 500; }
.examples p { font-size: 0.9375rem; }
.notfor { margin-top: 3.5rem; max-width: 62ch; }
.notfor__list { list-style: none; padding: 0; display: grid; gap: 0.6rem; }
.notfor__list li { padding-left: 1.4rem; position: relative; font-size: 0.9375rem; }
.notfor__list li::before { content: ""; position: absolute; left: 0; top: 0.75em; width: 12px; height: 1px; background: var(--fn); }

/* instructor */
.section--instructor { border-top: 1px solid var(--hair); }
.instructor { display: grid; grid-template-columns: minmax(200px, 300px) 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.instructor__photo img { border-radius: var(--radius); aspect-ratio: 699 / 1050; object-fit: cover; filter: grayscale(12%); }
.instructor__copy { display: grid; gap: 1rem; }
.instructor__title { font-size: 0.8125rem; margin-top: -0.4rem; }
.instructor__line { color: var(--ink); font-weight: 600; }

/* band (dark details + reserve) */
.band { background: var(--ink); color: var(--bg); padding-block: clamp(3.5rem, 8vw, 6.5rem); }
.band__grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(2rem, 6vw, 5rem); align-items: start; }
.band__title { color: var(--bg); font-size: clamp(1.75rem, 3.6vw, 2.5rem); font-weight: 700; letter-spacing: -0.02em; }
.band__venue { margin-top: 1.5rem; color: #d9d7d0; }
.band__venue a { border-bottom: 1px solid #4a4843; transition: border-color var(--fast); }
.band__venue a:hover { border-color: var(--bg); }
.band__seats { margin-top: 1.5rem; font-size: 0.875rem; color: #9a968c; margin-bottom: 0.25rem; }
.bring { list-style: none; padding: 0; display: grid; gap: 0.75rem; }
.bring li { padding-left: 1.4rem; position: relative; color: #d9d7d0; font-size: 0.9375rem; }
.bring li::before { content: ""; position: absolute; left: 0; top: 0.8em; width: 12px; height: 1px; background: #6d6a63; }
.band__cta { margin-top: 2.25rem; }
.band__fine { margin-top: 0.85rem; font-size: 0.8125rem; color: #9a968c; }

/* faq */
.faq { border-top: 1px solid var(--hair); max-width: 760px; }
.faq details { border-bottom: 1px solid var(--hair); }
.faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 1.5rem; padding: 1.1rem 0; font-weight: 600; color: var(--ink); font-size: 1.0625rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { color: var(--fn); }
.faq summary::after { content: "+"; font-family: var(--mono); color: var(--fn); font-size: 1.1rem; flex: none; transition: transform var(--dur) var(--ease); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq .faq__a { padding: 0 0 1.25rem; font-size: 0.9375rem; color: var(--body); max-width: 62ch; }

/* interest form */
.section--interest { background: var(--paper2); border-top: 1px solid var(--hair); }
.interest { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: clamp(2rem, 6vw, 5rem); align-items: start; }
.interest__copy { display: grid; gap: 1rem; }
.form { display: grid; gap: 1.25rem; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.field { display: grid; gap: 0.45rem; border: 0; padding: 0; margin: 0; min-width: 0; }
.field legend { padding: 0; float: left; width: 100%; margin-bottom: 0.45rem; }
.field__label { font-size: 0.875rem; font-weight: 600; color: var(--ink); }
.field input[type="text"], .field input[type="email"], .field textarea { font: inherit; font-size: 1rem; color: var(--ink); background: var(--bg); border: 1px solid var(--hair); border-radius: var(--radius); padding: 0.75rem 0.9rem; width: 100%; min-height: 48px; transition: border-color var(--fast); }
.field textarea { resize: vertical; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--ink); }
.field input::placeholder, .field textarea::placeholder { color: #a5a29a; }
.field.is-invalid input { border-color: var(--red); }
.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.chip { position: relative; }
.chip input { position: absolute; opacity: 0; inset: 0; }
.chip span { display: inline-flex; align-items: center; min-height: 40px; padding: 0 0.9rem; border: 1px solid var(--hair); border-radius: 999px; font-size: 0.875rem; color: var(--body); background: var(--bg); cursor: pointer; transition: background var(--fast), color var(--fast), border-color var(--fast); }
.chip input:checked + span { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.chip input:focus-visible + span { outline: 2px solid var(--blue); outline-offset: 2px; }
.hp { position: absolute; left: -9999px; }
.form__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.5rem; }
.form__msg { font-size: 0.9375rem; color: var(--red); max-width: none; }
.form__msg.is-ok { color: var(--green); }
.form__done { background: var(--bg); border: 1px solid var(--hair); border-radius: var(--radius); padding: 1.5rem; display: grid; gap: 0.5rem; }
.form__done-title { font-weight: 700; color: var(--ink); font-size: 1.125rem; }

/* footer */
.footer { border-top: 1px solid var(--hair); padding: 2.5rem 0 calc(2.5rem + env(safe-area-inset-bottom)); }
.footer__row { display: flex; flex-wrap: wrap; gap: 1rem 2rem; align-items: center; justify-content: space-between; }
.footer__meta { font-size: 0.75rem; color: var(--fn); max-width: none; }
.footer__meta a { border-bottom: 1px solid transparent; }
.footer__meta a:hover { border-color: var(--fn); }

/* sticky mobile bar */
.sticky { position: fixed; left: 0; right: 0; bottom: 0; z-index: 45; display: none; align-items: center; justify-content: space-between; gap: 1rem; padding: 0.75rem var(--gutter) calc(0.75rem + env(safe-area-inset-bottom)); background: color-mix(in srgb, var(--bg) 92%, transparent); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); border-top: 1px solid var(--hair); transform: translateY(110%); transition: transform var(--dur) var(--ease); }
.sticky.is-on { transform: none; }
.sticky__text { font-size: 1rem; display: flex; align-items: baseline; gap: 0.6rem; }
.sticky__text strong { font-family: var(--mono); font-weight: 500; font-size: 1.125rem; color: var(--ink); }
.sticky__text .mono { font-size: 0.75rem; white-space: nowrap; }

/* toast */
.toast { position: fixed; left: 50%; bottom: 5.5rem; transform: translateX(-50%); z-index: 60; background: var(--ink); color: var(--bg); padding: 0.8rem 1.1rem; border-radius: var(--radius); font-size: 0.9375rem; max-width: min(92vw, 420px); box-shadow: 0 8px 24px rgba(5,5,5,0.16); }

/* sold-out state */
body.is-soldout [data-checkout] { opacity: 0.5; pointer-events: none; }
body.is-soldout .ticket__fine::before { content: "Sold out. "; color: var(--red); font-weight: 600; }

/* responsive */
@media (max-width: 960px) {
  .hero__grid, .split, .band__grid, .interest, .instructor { grid-template-columns: 1fr; }
  .outcomes { grid-template-columns: 1fr; gap: 1.25rem; }
  .examples { grid-template-columns: 1fr; gap: 0; }
  .instructor__photo { max-width: 240px; }
  .calm { border-left: 0; padding-left: 0; border-top: 1px solid var(--hair); padding-top: 1.5rem; }
}
@media (max-width: 640px) {
  body { font-size: 1rem; }
  .top__meta { display: none; }
  .top__right .btn { display: none; }
  .hero { padding-top: 2.5rem; }
  .hero__title { font-size: clamp(2.1rem, 9.5vw, 2.9rem); max-width: none; }
  .hero__actions .btn { width: 100%; }
  .agenda li { grid-template-columns: 4rem 1fr; gap: 0.35rem 1rem; }
  .agenda__mins { grid-column: 2; }
  .agenda li > div { grid-column: 1 / -1; }
  .examples li { grid-template-columns: 1fr; gap: 0.25rem; }
  .form__row { grid-template-columns: 1fr; }
  .sticky { display: flex; }
  .footer { padding-bottom: calc(6rem + env(safe-area-inset-bottom)); }
  .ticket { padding: 1.25rem; }
  .ticket__notch--l { left: calc(-1.25rem - 10px); }
  .ticket__notch--r { right: calc(-1.25rem - 10px); }
}