/* Catalyst Campus — public site. Palette taken from the folded-map logo. */
:root {
  --navy: #1a3257;
  --navy-2: #24426f;
  --blue: #3f63b0;
  --blue-soft: #e7ecf3;
  --sky: #74b4ec;
  --paper: #f8f4ee;
  --paper-2: #fffdf9;
  --ink: #1a2a40;
  --muted: #56647a;
  --line: #dcd5c8;
  --line-soft: #ebe5da;
  --ok: #2f7a55;
  --ok-soft: #e4f2ea;
  --bad: #a3392f;
  --bad-soft: #f8e6e3;
  --warn-soft: #fbf0d9;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(26, 50, 87, .06), 0 8px 24px rgba(26, 50, 87, .08);
  --font: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --display: "Nunito", "Inter", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.6 var(--font); }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue); text-underline-offset: 3px; }
a:hover { color: var(--navy); }
:focus-visible { outline: 3px solid var(--sky); outline-offset: 3px; border-radius: 6px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--navy); color: #fff; padding: 10px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 12px; }
h1, h2, h3 { font-family: var(--display); color: var(--navy); line-height: 1.15; margin: 0 0 .5em; }
h1 { font-size: clamp(2.2rem, 5.4vw, 3.6rem); font-weight: 800; letter-spacing: -.02em; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); font-weight: 800; letter-spacing: -.01em; }
h3 { font-size: 1.2rem; font-weight: 800; }
p { margin: 0 0 1em; }
.wrap { width: min(1120px, 100% - 32px); margin-inline: auto; }
.eyebrow { font: 700 .78rem/1 var(--font); letter-spacing: .14em; text-transform: uppercase; color: var(--blue); margin-bottom: 14px; }
.muted { color: var(--muted); }
.small { font-size: .9rem; }

/* ---------------------------------------------------------------- buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 0 20px; border-radius: 999px;
  border: 1.5px solid var(--navy); background: transparent; color: var(--navy); font: 700 1rem/1 var(--font); text-decoration: none; cursor: pointer;
  transition: background .15s, color .15s, transform .15s; }
.btn:hover { background: var(--blue-soft); color: var(--navy); }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-2); color: #fff; }
.btn-sm { min-height: 38px; padding: 0 16px; font-size: .92rem; }
.btn[disabled], .btn[aria-disabled="true"] { opacity: .55; cursor: not-allowed; pointer-events: none; }
.btn-link { background: none; border: 0; color: var(--blue); font: inherit; text-decoration: underline; cursor: pointer; padding: 0; }

/* ---------------------------------------------------------------- nav */
.nav { position: sticky; top: 0; z-index: 20; background: rgba(248, 244, 238, .92); backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid transparent; }
.nav.scrolled { border-bottom-color: var(--line-soft); }
.nav .wrap { display: flex; align-items: center; gap: 20px; min-height: 68px; }
.nav .logo img { height: 40px; width: auto; }
.nav ul { display: flex; gap: 4px; list-style: none; margin: 0 0 0 auto; padding: 0; align-items: center; }
.nav ul a { display: block; padding: 8px 12px; border-radius: 999px; color: var(--ink); text-decoration: none; font-weight: 600; font-size: .95rem; }
.nav ul a:hover { background: var(--blue-soft); }
.nav .nav-cta { margin-left: 6px; }
.nav-toggle { display: none; margin-left: auto; background: none; border: 1.5px solid var(--line); border-radius: 10px; width: 44px; height: 44px; cursor: pointer; color: var(--navy); }
@media (max-width: 760px) {
  .nav-toggle { display: inline-grid; place-items: center; }
  .nav ul { display: none; position: absolute; left: 0; right: 0; top: 68px; flex-direction: column; align-items: stretch; background: var(--paper-2); border-bottom: 1px solid var(--line); padding: 10px 16px 16px; gap: 2px; }
  .nav.open ul { display: flex; }
  .nav ul a { padding: 12px; }
  .nav .nav-cta { margin: 6px 0 0; }
  .nav .nav-cta .btn { width: 100%; }
}

/* ---------------------------------------------------------------- hero */
.hero { padding: 64px 0 40px; }
.hero .wrap { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; }
.hero p.lead { font-size: 1.2rem; color: var(--muted); max-width: 34ch; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0 18px; }
.hero .note { font-size: .88rem; color: var(--muted); max-width: 46ch; }
.hero-art { position: relative; aspect-ratio: 16/9; border-radius: 22px; overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--line-soft); background: var(--blue-soft); }
.hero-art img { width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 880px) {
  .hero { padding-top: 36px; }
  .hero .wrap { grid-template-columns: 1fr; gap: 28px; }
}

/* ---------------------------------------------------------------- sections */
section.block { padding: 72px 0; }
section.block.alt { background: var(--paper-2); border-block: 1px solid var(--line-soft); }
.section-head { max-width: 640px; margin-bottom: 36px; }

/* product preview */
.preview-grid { display: grid; grid-template-columns: 1.35fr 1fr; gap: 22px; align-items: start; }
.frame { background: #fff; border-radius: 16px; border: 1px solid var(--line-soft); box-shadow: var(--shadow); overflow: hidden; margin: 0; }
.frame .chrome { display: flex; gap: 6px; padding: 10px 12px; background: var(--blue-soft); border-bottom: 1px solid var(--line-soft); }
.frame .chrome span { width: 10px; height: 10px; border-radius: 50%; background: #c5cfdf; }
.frame figcaption { padding: 12px 16px; font-size: .9rem; color: var(--muted); border-top: 1px solid var(--line-soft); }
@media (max-width: 880px) { .preview-grid { grid-template-columns: 1fr; } }

/* steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: step; list-style: none; padding: 0; margin: 0; }
.steps li { background: #fff; border: 1px solid var(--line-soft); border-radius: var(--radius); padding: 24px; position: relative; }
.steps li::before { counter-increment: step; content: counter(step); display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%;
  background: var(--navy); color: #fff; font: 800 1.05rem/1 var(--display); margin-bottom: 14px; }
.steps li:not(:last-child)::after { content: ""; position: absolute; top: 42px; right: -16px; width: 12px; height: 2px; border-top: 2px dashed var(--blue); }
@media (max-width: 820px) { .steps { grid-template-columns: 1fr; } .steps li:not(:last-child)::after { display: none; } }

/* subjects */
.subjects { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
.card { background: #fff; border: 1px solid var(--line-soft); border-radius: var(--radius); padding: 24px; }
.subject h3 { margin-bottom: 2px; }
.subject .code { font: 800 .8rem/1 var(--font); letter-spacing: .1em; color: var(--blue); }
.subject ul { margin: 14px 0 0; padding-left: 1.1em; }
.subject li { margin: 4px 0; }
.badge { display: inline-block; font: 700 .72rem/1 var(--font); letter-spacing: .08em; text-transform: uppercase; padding: 6px 9px; border-radius: 999px; }
.badge-now { background: var(--ok-soft); color: var(--ok); }
.badge-soon { background: var(--warn-soft); color: #7a5a14; }
.badge-lock { background: var(--blue-soft); color: var(--navy); }
.subject-top { display: flex; justify-content: space-between; gap: 12px; align-items: start; margin-bottom: 10px; }
.soon { margin-top: 28px; }
.soon-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; list-style: none; padding: 0; margin: 14px 0 0; }
.soon-list li { background: transparent; border: 1.5px dashed var(--line); border-radius: 12px; padding: 14px 16px; }
@media (max-width: 760px) { .subjects { grid-template-columns: 1fr; } }

/* pricing */
.plans { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; max-width: 900px; }
.plan { display: flex; flex-direction: column; }
.plan.featured { border: 2px solid var(--navy); }
.plan .price { font: 800 2.2rem/1.1 var(--display); color: var(--navy); margin: 8px 0 4px; }
.plan .price small { font: 600 1rem var(--font); color: var(--muted); }
.plan ul { padding-left: 1.1em; margin: 16px 0 22px; }
.plan li { margin: 6px 0; }
.plan .btn { margin-top: auto; }
@media (max-width: 760px) { .plans { grid-template-columns: 1fr; } }

/* faq */
.faq { max-width: 760px; }
.faq details { border-bottom: 1px solid var(--line); padding: 4px 0; }
.faq summary { cursor: pointer; list-style: none; padding: 16px 36px 16px 0; font-weight: 700; position: relative; color: var(--navy); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 6px; top: 12px; font: 400 1.6rem/1 var(--font); color: var(--blue); }
.faq details[open] summary::after { content: "–"; }
.faq details > div { padding: 0 0 18px; color: var(--muted); }

/* footer */
footer.site { padding: 44px 0 56px; border-top: 1px solid var(--line-soft); background: var(--paper-2); }
footer.site .wrap { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 28px; }
footer.site h2 { font-size: 1rem; margin-bottom: 10px; }
footer.site ul { list-style: none; padding: 0; margin: 0; }
footer.site li { margin: 6px 0; }
footer.site .legal { grid-column: 1 / -1; font-size: .85rem; color: var(--muted); border-top: 1px solid var(--line-soft); padding-top: 18px; }
@media (max-width: 760px) { footer.site .wrap { grid-template-columns: 1fr; } }

/* ---------------------------------------------------------------- forms / small pages */
.page { padding: 48px 0 72px; }
.panel { width: min(460px, 100%); margin-inline: auto; background: #fff; border: 1px solid var(--line-soft); border-radius: 18px; padding: 32px; box-shadow: var(--shadow); }
.panel h1 { font-size: 1.9rem; }
@media (max-width: 480px) { .panel { padding: 24px 20px; } }
label { display: block; font-weight: 600; margin: 16px 0 6px; }
input[type=email], input[type=password], input[type=text] { width: 100%; min-height: 48px; padding: 10px 14px; border: 1.5px solid var(--line); border-radius: 12px; font: inherit; background: var(--paper-2); color: var(--ink); }
input:focus { border-color: var(--blue); outline: none; box-shadow: 0 0 0 3px rgba(116, 180, 236, .45); }
.hint { font-size: .85rem; color: var(--muted); margin-top: 6px; }
.form-actions { margin-top: 22px; display: grid; gap: 12px; }
.form-actions .btn { width: 100%; }
.alert { border-radius: 12px; padding: 12px 14px; margin: 14px 0; font-size: .95rem; }
.alert-error { background: var(--bad-soft); color: var(--bad); }
.alert-ok { background: var(--ok-soft); color: var(--ok); }
.alert-info { background: var(--blue-soft); color: var(--navy); }
.alert-warn { background: var(--warn-soft); color: #6b4e0f; }
.demo-ribbon { background: #6b4e0f; color: #fff8e6; text-align: center; font-size: .85rem; padding: 7px 12px; }
.demo-ribbon a { color: #fff; }
.prose { max-width: 760px; }
.prose h2 { font-size: 1.35rem; margin-top: 1.8em; }
.prose li { margin: 6px 0; }
.draft-note { border: 2px dashed #c79a36; background: var(--warn-soft); border-radius: 12px; padding: 14px 16px; margin-bottom: 26px; }

/* account */
.acct-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 760px) { .acct-grid { grid-template-columns: 1fr; } }
table.t { width: 100%; border-collapse: collapse; font-size: .95rem; }
table.t th, table.t td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
table.t th { font-size: .78rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.table-scroll { overflow-x: auto; }
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
[hidden] { display: none !important; }
.nav ul a.btn-primary, .nav ul a.btn-primary:hover { color: #fff; background: var(--navy); }
.nav ul a.btn-primary:hover { background: var(--navy-2); }
.nav ul a.btn { border-radius: 999px; padding: 0 16px; display: inline-flex; }
textarea { width: 100%; padding: 10px 12px; border: 1.5px solid var(--line); border-radius: 12px; font: inherit; background: var(--paper-2); color: var(--ink); resize: vertical; }
textarea:focus { border-color: var(--blue); outline: none; box-shadow: 0 0 0 3px rgba(116, 180, 236, .45); }
.refund-req summary { list-style: none; cursor: pointer; }
.refund-req summary::-webkit-details-marker { display: none; }
.refund-req form { margin-top: 10px; min-width: 220px; }
.refund-req form .btn { margin-top: 8px; }
.refund-req label { margin: 0 0 4px; }