/* Bausteine — extras page for the portfolio. */
:root {
  --paper: #f4f0e7;
  --card: #fffdf8;
  --ink: #171a18;
  --muted: #6c675e;
  --line: #d8d0c2;
  --accent: #b7f34a;
  --copper: #b4633a;
  --max: 1120px;
  --gutter: clamp(18px, 4vw, 40px);
  --sans: "Saira Semi Condensed", "Arial Narrow", sans-serif;
  --body: "Archivo", system-ui, sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: var(--sans); line-height: .98; margin: 0; letter-spacing: -.01em; }
p { margin: 0; }
a { color: inherit; }
.wrap { width: min(100% - (2 * var(--gutter)), var(--max)); margin-inline: auto; }

.head { border-bottom: 1px solid var(--line); }
.head-in { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 16px 0; font-size: 13px; }
.brand { font-family: var(--sans); font-weight: 700; letter-spacing: .06em; text-transform: uppercase; text-decoration: none; }
.back { color: var(--muted); text-decoration: none; }

.hero { padding: clamp(44px, 7vw, 84px) 0 clamp(30px, 4vw, 48px); }
.kicker { font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin-bottom: 12px; }
.hero h1 { font-size: clamp(2.8rem, 6vw, 5.6rem); max-width: 12ch; }
.hero-foot { display: flex; justify-content: space-between; gap: 28px; margin-top: 26px; align-items: end; }
.hero p { max-width: 56ch; color: var(--muted); font-size: 15.5px; }
.hero-mark { font-family: var(--sans); font-size: 13px; color: var(--copper); white-space: nowrap; }

.modules { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; padding-bottom: clamp(50px, 7vw, 90px); }
.module { background: var(--card); border: 1px solid var(--line); padding: 24px; display: flex; flex-direction: column; gap: 14px; }
.module--wide { grid-column: 1 / -1; display: grid; grid-template-columns: 1.05fr .95fr; gap: 28px; align-items: center; }
.num { font-family: var(--sans); font-size: 12px; letter-spacing: .12em; color: var(--muted); }
.module h2 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); }
.module p { font-size: 14px; color: var(--muted); max-width: 52ch; }
.module-tag { display: inline-block; margin-top: 2px; padding: 4px 8px; border: 1px solid var(--line); font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }

label { display: block; font-size: 12px; letter-spacing: .04em; color: var(--muted); margin-bottom: 5px; }
select, input { width: 100%; min-height: 44px; border: 1px solid var(--ink); background: transparent; color: inherit; font: inherit; padding: 9px 10px; border-radius: 0; }
select:focus, input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.checks { display: grid; gap: 7px; margin: 12px 0; }
.check { display: flex; gap: 8px; align-items: center; font-size: 13.5px; color: var(--ink); }
.check input { width: auto; min-height: 0; accent-color: var(--copper); }
.calc-out { border-top: 1px solid var(--ink); padding-top: 12px; margin-top: 4px; }
.calc-out strong { display: block; font-family: var(--sans); font-size: 2.1rem; line-height: 1; }
.calc-out span { font-size: 12px; color: var(--muted); }
.hint { font-size: 11.5px; color: var(--muted); }

.qr-box { display: flex; gap: 16px; align-items: center; }
.qr-box img { width: 132px; height: 132px; border: 1px solid var(--line); background: #fff; padding: 5px; }
.qr-box p { font-size: 12.5px; }
.qr-link { display: inline-block; margin-top: 8px; font-size: 13px; text-decoration: underline; text-underline-offset: 3px; }

.book-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.btn { display: inline-block; min-height: 44px; padding: 10px 14px; border: 1px solid var(--ink); background: var(--ink); color: var(--paper); font: inherit; font-size: 13.5px; cursor: pointer; }
.btn:hover { background: var(--copper); border-color: var(--copper); }
.btn--ghost { background: transparent; color: var(--ink); }
.out { min-height: 22px; margin-top: 10px; font-size: 13px; color: var(--copper); }
.code-row { display: flex; gap: 8px; }
.code-row input { text-transform: uppercase; }
.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin-top: 14px; background: var(--line); border: 1px solid var(--line); }
.stats div { background: var(--card); padding: 11px 12px; }
.stats span { display: block; font-size: 10.5px; color: var(--muted); }
.stats b { display: block; font-family: var(--sans); font-size: 1.55rem; line-height: 1.1; margin-top: 2px; }
@media (max-width: 520px) { .stats { grid-template-columns: 1fr 1fr; } .stats b { font-size: 1.25rem; } }
.channels { display: grid; gap: 0; border-top: 1px solid var(--line); }
.channel { display: grid; grid-template-columns: 120px 1fr; gap: 10px; padding: 12px 0; border-bottom: 1px solid var(--line); align-items: start; }
.channel b { font-family: var(--sans); font-size: 13px; }
.channel span { font-size: 12.5px; color: var(--muted); }
.channel em { grid-column: 2; font-style: normal; font-size: 10px; letter-spacing: .08em; text-transform: uppercase; color: var(--copper); }
@media (max-width: 520px) { .channel { grid-template-columns: 1fr; gap: 3px; } .channel em { grid-column: 1; } }
.foot { border-top: 1px solid var(--line); padding: 20px 0 34px; font-size: 11.5px; color: var(--muted); display: flex; justify-content: space-between; gap: 20px; }
@media (max-width: 760px) {
  .modules, .module--wide { grid-template-columns: 1fr; }
  .hero-foot { display: block; }
  .hero-mark { margin-top: 14px; }
  .calc-grid, .book-grid { grid-template-columns: 1fr; }
  .module { padding: 20px; }
}