/* bitbcash.com: one small stylesheet, no framework. */
:root {
  --ink: #12151a;
  --ink-2: #3b424d;
  --muted: #6b7380;
  --line: #e3e6ea;
  --bg: #ffffff;
  --bg-soft: #f4f6f8;
  --dark: #0d0f12;
  --green: #1dbf1c;
  --green-ink: #138a12;
  --green-soft: #e7f8e7;
  --warn: #b7791f;
  --warn-soft: #fdf3e1;
  --bad: #c53030;
  --bad-soft: #fde8e8;
  --radius: 10px;
  --wrap: 1180px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 4px 16px rgba(16, 24, 40, 0.06);
  font-family: Inter, system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font-size: 16px; line-height: 1.6; background: var(--bg); color: var(--ink); }
img { max-width: 100%; height: auto; }
a { color: var(--green-ink); text-underline-offset: 2px; }
a:hover { color: var(--ink); }
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.01em; }
h1 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); margin: 0.2em 0 0.5em; }
h2 { font-size: 1.45rem; margin: 1.6em 0 0.6em; }
h3 { font-size: 1.1rem; margin: 1.2em 0 0.4em; }
code, .mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.92em; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 16px; }
.main { max-width: 860px; margin: 0 auto; padding: 32px 16px 64px; }
.main.wide { max-width: none; padding: 0 0 64px; }
.lead { font-size: 1.12rem; color: var(--ink-2); }
.narrow { max-width: 720px; }
.muted { color: var(--muted); }
.small { font-size: 0.875rem; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.inline { display: inline; }

/* header */
.site-header { background: var(--dark); color: #fff; position: sticky; top: 0; z-index: 10; }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.site-nav { display: flex; align-items: center; gap: 22px; }
.site-nav a { color: #d6dae0; text-decoration: none; font-size: 0.95rem; }
.site-nav a:hover, .site-nav a.active { color: #fff; }
.site-nav .btn { color: #0b0d10; }
.nav-toggle, .nav-burger { display: none; }
.wordmark { display: inline-flex; align-items: baseline; gap: 8px; text-decoration: none; color: #fff; font-weight: 800; }
.wm-bitb { font-size: 1.55rem; letter-spacing: -0.03em; }
.wm-cash { display: inline-flex; align-items: center; gap: 6px; background: #000; color: var(--green); font-size: 0.8rem; padding: 2px 8px; border-radius: 3px; letter-spacing: 0.08em; }
.wm-stripes { width: 22px; height: 10px; background: repeating-linear-gradient(115deg, var(--green) 0 3px, transparent 3px 6px); }
.site-footer .wordmark { color: var(--ink); }
.site-footer .wm-cash { background: var(--ink); }

@media (max-width: 860px) {
  .nav-burger { display: block; width: 40px; height: 40px; cursor: pointer; position: relative; }
  .nav-burger span, .nav-burger span::before, .nav-burger span::after {
    position: absolute; left: 9px; width: 22px; height: 2px; background: #fff; content: '';
  }
  .nav-burger span { top: 19px; }
  .nav-burger span::before { top: -7px; left: 0; }
  .nav-burger span::after { top: 7px; left: 0; }
  .site-nav { display: none; position: absolute; top: 64px; left: 0; right: 0; background: var(--dark); flex-direction: column; align-items: flex-start; padding: 12px 16px 20px; gap: 14px; }
  .nav-toggle:checked ~ .site-nav { display: flex; }
}

/* buttons */
.btn {
  display: inline-block; background: var(--green); color: #07130a; border: 0; border-radius: 8px; padding: 10px 18px;
  font: inherit; font-weight: 700; text-decoration: none; cursor: pointer; line-height: 1.3;
}
.btn:hover { background: #18a917; color: #07130a; }
.btn:disabled { opacity: 0.55; cursor: default; }
.btn-lg { padding: 14px 24px; font-size: 1.05rem; }
.btn-sm { padding: 6px 12px; font-size: 0.9rem; }
.btn-ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1.5px var(--line); }
.btn-ghost:hover { background: var(--bg-soft); }
.btn-danger { background: var(--bad); color: #fff; }
.btn-danger:hover { background: #9b2c2c; color: #fff; }
.linklike { background: none; border: 0; padding: 0; color: var(--green-ink); text-decoration: underline; font: inherit; cursor: pointer; }

/* home */
.hero { background: radial-gradient(1200px 400px at 80% -10%, #1f3a1f 0%, transparent 60%), var(--dark); color: #fff; padding: 72px 0 80px; }
.hero h1 { font-size: clamp(2rem, 5vw, 3.4rem); max-width: 16ch; }
.hero .lead { color: #c9ced6; max-width: 62ch; }
.hero .btn-ghost { color: #fff; box-shadow: inset 0 0 0 1.5px #3a414c; }
.hero .btn-ghost:hover { background: #1a1f26; }
.hero-inner { display: grid; grid-template-columns: 1fr auto; gap: 48px; align-items: center; }
.hero-badge { width: 240px; filter: invert(1); opacity: 0.9; }
.eyebrow { text-transform: uppercase; letter-spacing: 0.14em; font-size: 0.8rem; color: var(--green); font-weight: 700; }
@media (max-width: 760px) { .hero-inner { grid-template-columns: 1fr; } .hero-badge { display: none; } }
.section { padding: 56px 16px; }
.section-title { margin-top: 0; }
.band { background: var(--bg-soft); }
.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); margin-bottom: 18px; }
.grid > .card { margin-bottom: 0; }
.card h3 { margin-top: 0; }
.mm-card { display: flex; gap: 20px; align-items: center; justify-content: space-between; border-left: 4px solid var(--green); }
.mm-card p { margin-bottom: 0; }
.mm-card .btn { flex-shrink: 0; }
@media (max-width: 640px) { .mm-card { flex-direction: column; align-items: flex-start; } }
.card-link { display: block; color: inherit; text-decoration: none; transition: border-color 0.15s, transform 0.15s; }
.card-link:hover { border-color: var(--green); transform: translateY(-1px); color: inherit; }
.quote p:first-child { font-size: 1.05rem; }
.quote .who { margin-bottom: 0; color: var(--muted); font-size: 0.9rem; }
.result { float: right; color: var(--green-ink); font-weight: 800; }
.result-big { font-size: 1.6rem; font-weight: 800; color: var(--green-ink); margin: 0 0 6px; }
.stats { display: flex; flex-wrap: wrap; gap: 32px; margin-top: 28px; }
.stats div, .stats a { display: flex; flex-direction: column; }
.stats strong { font-size: 2.2rem; line-height: 1; }
.stats span { color: var(--muted); }
.stats.tiles a { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 20px; min-width: 170px; text-decoration: none; color: inherit; }
.coach-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 18px; margin-top: 24px; }
.coach { display: flex; flex-direction: column; align-items: center; text-align: center; text-decoration: none; color: inherit; padding: 16px 8px; border-radius: var(--radius); }
.coach:hover { background: #fff; color: inherit; }
.coach img { border-radius: 50%; width: 104px; height: 104px; object-fit: cover; margin-bottom: 10px; background: #ddd; }
.coach span { color: var(--muted); font-size: 0.9rem; }
.coach-head { display: flex; gap: 20px; align-items: center; }
.coach-head img { border-radius: 50%; }
.coach-head h1 { margin: 0; }
.cta-band { background: var(--dark); color: #fff; text-align: center; padding: 48px 16px; margin-top: 48px; border-radius: var(--radius); }
.main.wide .cta-band { border-radius: 0; }
.cta-band h2 { margin-top: 0; }
.crumbs { font-size: 0.9rem; color: var(--muted); margin: 0; }

/* prose */
.prose { font-size: 1.04rem; }
.prose img { border-radius: 6px; margin: 12px 0; }
.prose blockquote { border-left: 4px solid var(--green); margin: 1.4em 0; padding: 4px 18px; color: var(--ink-2); background: var(--bg-soft); border-radius: 0 6px 6px 0; }
.prose figure { margin: 1.5em 0; }
.prose figcaption { color: var(--muted); font-size: 0.9rem; }
.prose h6 { font-size: 1.05rem; margin: 1.2em 0 0.3em; }
.legal { font-size: 0.95rem; }
.faq { border-bottom: 1px solid var(--line); padding: 12px 0; }
.faq summary { font-weight: 700; cursor: pointer; }
.note { background: var(--green-soft); border-radius: 8px; padding: 14px 18px; margin: 24px 0; }
.video-embed { position: relative; aspect-ratio: 16 / 9; margin: 0 0 24px; border-radius: var(--radius); overflow: hidden; background: #000; }
.video-embed iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* forms */
.form { display: flex; flex-direction: column; gap: 14px; }
.form label { display: flex; flex-direction: column; gap: 6px; font-weight: 600; font-size: 0.95rem; }
.form label.check { flex-direction: row; align-items: flex-start; gap: 10px; font-weight: 400; }
.form label.check input { margin-top: 5px; }
input, select, textarea {
  font: inherit; font-weight: 400; padding: 10px 12px; border: 1px solid #c9ced6; border-radius: 8px; background: #fff; color: var(--ink); width: 100%;
}
input[type='checkbox'], input[type='radio'] { width: auto; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--green); outline-offset: 1px; border-color: var(--green); }
fieldset { border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin: 0 0 8px; display: flex; flex-direction: column; gap: 14px; }
legend { font-weight: 800; padding: 0 6px; }
fieldset.radios { border: 0; padding: 0; gap: 6px; }
fieldset.radios legend { padding: 0; font-weight: 600; font-size: 0.95rem; }
.row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; }
.inline-form { display: inline-flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.inline-form input, .inline-form select { width: auto; }
.narrow-form { max-width: 520px; }
.flash { padding: 12px 16px; border-radius: 8px; }
.flash-error { background: var(--bad-soft); color: #7b1d1d; }
.flash-ok { background: var(--green-soft); color: #0f5e0f; }
.auth-card { max-width: 420px; margin: 24px auto; }
.auth-card.wide { max-width: 620px; }
.steps li { margin-bottom: 18px; }
.qr { width: 200px; margin: 12px 0; background: #fff; }
.qr svg { width: 100%; height: auto; display: block; }
.key { word-break: break-all; }
.codes { background: var(--bg-soft); padding: 16px; border-radius: 8px; font-size: 1.1rem; line-height: 1.8; }

/* footer */
.site-footer { background: var(--bg-soft); border-top: 1px solid var(--line); padding: 48px 0 24px; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 28px; }
.footer-grid h4 { margin: 0 0 10px; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.footer-grid > div > a { display: block; color: var(--ink-2); text-decoration: none; margin-bottom: 6px; font-size: 0.95rem; }
.footer-grid > div > a.btn { display: inline-block; }
.footer-grid a:hover { color: var(--green-ink); }
.social { display: flex; gap: 14px; }
.partner { margin-top: 18px; }
.footer-base { margin-top: 32px; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr 1fr; } }

/* members */
.members-head { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.search input { min-width: 240px; }
.lesson-list { padding-left: 1.3em; }
.lesson-list li { padding: 4px 0; }
.lesson-list li.done a { color: var(--muted); }
.lesson-list li.done::marker { color: var(--green); content: '✓  '; }
.section { border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 16px; margin-bottom: 10px; background: #fff; }
.section summary { font-weight: 700; cursor: pointer; }
.progress { height: 6px; background: var(--bg-soft); border-radius: 3px; overflow: hidden; }
.progress span { display: block; height: 100%; background: var(--green); }
.course-card h3 { margin-bottom: 4px; }
.vdo { position: relative; aspect-ratio: 16 / 9; background: #0b0d10; border-radius: var(--radius); overflow: hidden; margin: 12px 0 20px; display: flex; align-items: center; justify-content: center; }
.vdo iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.vdo-play { background: var(--green); color: #07130a; border: 0; border-radius: 999px; padding: 14px 26px; font: inherit; font-weight: 800; cursor: pointer; }
.lesson-nav { display: grid; grid-template-columns: 1fr auto 1fr; gap: 16px; align-items: center; margin-top: 36px; border-top: 1px solid var(--line); padding-top: 18px; }
.lesson-nav > :last-child { text-align: right; }

/* tables and admin */
.table { width: 100%; border-collapse: collapse; margin: 8px 0 16px; }
.table th, .table td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.table th { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); }
.pill { display: inline-block; font-size: 0.75rem; font-weight: 700; padding: 2px 8px; border-radius: 999px; margin-left: 4px; background: var(--bg-soft); color: var(--ink-2); }
.pill-ok { background: var(--green-soft); color: #0f5e0f; }
.pill-warn { background: var(--warn-soft); color: #7a4f0f; }
.pill-bad { background: var(--bad-soft); color: #7b1d1d; }
.admin { display: grid; grid-template-columns: 210px 1fr; min-height: 70vh; }
.admin-nav { background: var(--bg-soft); border-right: 1px solid var(--line); padding: 24px 12px; display: flex; flex-direction: column; gap: 2px; }
.admin-nav a { color: var(--ink-2); text-decoration: none; padding: 7px 12px; border-radius: 6px; }
.admin-nav a.active, .admin-nav a:hover { background: #fff; color: var(--ink); }
.admin-main { padding: 24px 28px 48px; min-width: 0; }
.admin-main h1 { font-size: 1.7rem; }
@media (max-width: 860px) { .admin { grid-template-columns: 1fr; } .admin-nav { flex-direction: row; flex-wrap: wrap; border-right: 0; } .admin-main { padding: 16px; } }
.toolbar { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; }
.plain { list-style: none; padding: 0; }
.plain li { padding: 4px 0; }
.board { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(240px, 1fr); gap: 14px; overflow-x: auto; padding-bottom: 8px; }
.board-col { background: var(--bg-soft); border-radius: var(--radius); padding: 12px; }
.board-col h2 { font-size: 1rem; margin: 0 0 10px; }
.deal { display: flex; flex-direction: column; gap: 2px; padding: 12px; margin-bottom: 10px; }
.answers dt { font-weight: 700; margin-top: 12px; }
.answers dd { margin: 2px 0 0; white-space: pre-wrap; }
.tag { display: inline-flex; align-items: center; gap: 2px; background: var(--bg-soft); border-radius: 999px; padding: 2px 4px 2px 10px; margin: 0 6px 6px 0; }
.tag .btn { padding: 0 6px; box-shadow: none; }
.steps-list { padding-left: 1.4em; }
.step { display: flex; justify-content: space-between; gap: 12px; align-items: center; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; margin-bottom: 8px; background: #fff; }
.step-wait { background: var(--bg-soft); }
.step-send_email { border-left: 4px solid var(--green); }
.step-stop_if { border-left: 4px solid var(--warn); }
.step-actions { display: flex; gap: 4px; flex-shrink: 0; }
.email-preview { width: 100%; height: 520px; border: 1px solid var(--line); border-radius: 8px; background: #fff; }
.new-user { position: relative; }
.new-user[open] form { position: absolute; right: 0; z-index: 5; width: 340px; margin-top: 8px; }
.pager { display: flex; gap: 16px; }
details > summary.btn { list-style: none; }