/* ZimmerpflanzenRechner — "Botanik" design: leaf green + terracotta, airy, botanical line-art. */
:root {
  --leaf: #3f7a4e; --leaf-deep: #2a5a36; --leaf-ink: #1e4028;
  --sage: #eef5ec; --sage-line: #dfe9dc;
  --terra: #c2703e; --terra-deep: #a2552b; --terra-pale: #fbeedf;
  --cream: #fbfaf5; --paper: #ffffff; --ink: #2d3a2f; --mut: #687a6c; --line: #e2e8df;
  --radius: 18px;
  --serif: Georgia, "Times New Roman", serif;
  --sans: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "Roboto Mono", Menlo, Consolas, monospace;
  --shadow: 0 6px 22px rgba(42,90,54,.09); --lift: 0 18px 44px rgba(42,90,54,.16);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--sans); background: var(--cream); color: var(--ink); line-height: 1.75; -webkit-font-smoothing: antialiased; }
.container { max-width: 1080px; margin: 0 auto; padding: 0 26px; }
h1, h2, h3 { font-family: var(--serif); font-weight: 700; line-height: 1.25; color: var(--leaf-ink); }
header.site { background: rgba(251,250,245,.96); backdrop-filter: blur(6px); position: sticky; top: 0; z-index: 50; border-bottom: 1px solid var(--line); }
header.site .bar { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; padding: 16px 0; }
.brand { font-family: var(--serif); font-size: 1.4rem; font-weight: 700; color: var(--leaf-ink); text-decoration: none; display: inline-flex; align-items: center; }
.brand .leaf { width: 40px; height: 40px; border-radius: 50%; background: linear-gradient(135deg, var(--leaf), var(--leaf-deep)); margin-right: 12px; display: inline-flex; align-items: center; justify-content: center; box-shadow: 0 6px 16px rgba(42,90,54,.3); }
.brand .leaf svg { width: 22px; height: 22px; fill: #fff; }
.brand em { font-style: italic; color: var(--terra); }
nav.main a { color: var(--mut); text-decoration: none; margin-left: 22px; font-size: .94rem; font-weight: 600; }
nav.main a:hover { color: var(--terra); }
.hero { position: relative; padding: 104px 0 100px; background: var(--sage); overflow: hidden; }
.hero .vine { position: absolute; right: -40px; top: -30px; width: 420px; opacity: .35; pointer-events: none; }
.hero .vine.left { right: auto; left: -70px; top: auto; bottom: -40px; transform: scaleX(-1); width: 360px; }
.hero .container { position: relative; z-index: 1; }
.hero .kicker { display: inline-flex; align-items: center; gap: 10px; background: #fff; border: 1px solid var(--sage-line); color: var(--leaf-deep); font-size: .78rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; padding: 9px 20px; border-radius: 999px; margin-bottom: 20px; box-shadow: var(--shadow); }
.hero h1 { font-size: 3rem; max-width: 700px; margin-bottom: 18px; }
.hero h1 .terra { color: var(--terra); font-style: italic; }
.hero p.lead { font-size: 1.14rem; color: var(--mut); max-width: 640px; margin-bottom: 34px; }
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-terra { display: inline-block; background: linear-gradient(135deg, var(--terra), var(--terra-deep)); color: #fff; text-decoration: none; padding: 16px 38px; border-radius: 999px; font-weight: 700; box-shadow: 0 12px 28px rgba(194,112,62,.4); transition: transform .16s; }
.btn-terra:hover { transform: translateY(-3px); }
.btn-leaf { display: inline-block; border: 2px solid var(--leaf); color: var(--leaf-deep); text-decoration: none; padding: 14px 36px; border-radius: 999px; font-weight: 700; background: #fff; }
.btn-leaf:hover { background: var(--sage); }
.vinediv { display: block; margin: 0 auto; width: 220px; height: 26px; opacity: .6; }
section.block { padding: 72px 0; }
.sec-kicker { color: var(--terra); font-size: .78rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.sec-title { font-size: 2.3rem; margin: 10px 0 14px; }
.sec-sub { color: var(--mut); max-width: 720px; margin-bottom: 38px; font-size: 1.03rem; }
.tgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 24px; }
.tcard { background: var(--paper); border-radius: var(--radius); text-decoration: none; color: var(--ink); box-shadow: var(--shadow); transition: transform .16s, box-shadow .16s; display: flex; flex-direction: column; overflow: hidden; border: 1px solid var(--line); border-top: 6px solid var(--leaf); }
.tcard:hover { transform: translateY(-7px); box-shadow: var(--lift); border-top-color: var(--terra); }
.tcard .ph { height: 150px; background-size: cover; background-position: center; }
.tcard .tx { padding: 22px 26px 26px; flex: 1; }
.tcard .no { font-family: var(--mono); font-size: .72rem; color: var(--terra); letter-spacing: .08em; font-weight: 700; }
.tcard .tx h3 { font-size: 1.28rem; margin: 8px 0 8px; }
.tcard .tx p { font-size: .93rem; color: var(--mut); margin-bottom: 14px; }
.tcard .go { font-weight: 700; color: var(--leaf-deep); font-size: .92rem; }
.tcard .go span { color: var(--terra); }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 52px; align-items: center; margin: 54px 0; }
.split.flip > div:first-child { order: 2; }
.split img { width: 100%; border-radius: var(--radius); box-shadow: var(--lift); display: block; }
.split h3 { font-size: 1.7rem; margin-bottom: 14px; }
.split p { color: var(--mut); margin-bottom: 12px; }
.split .more { font-weight: 700; color: var(--terra); text-decoration: none; border-bottom: 2px solid var(--terra); font-size: .95rem; }
.honest { background: var(--sage); border: 1px dashed var(--leaf); border-radius: var(--radius); padding: 22px 26px; margin: 28px 0; font-size: .93rem; color: var(--leaf-ink); }
.honest strong { color: var(--leaf-deep); }
.crumbs { font-size: .85rem; color: var(--mut); margin: 24px 0 8px; font-family: var(--mono); }
.crumbs a { color: var(--terra); text-decoration: none; font-weight: 700; }
.pagehead { max-width: 800px; }
.pagehead h1 { font-size: 2.5rem; margin-bottom: 12px; }
.pagehead h1 .terra { color: var(--terra); font-style: italic; }
.pagehead p { color: var(--mut); }
.pagehead .pimg { margin: 26px 0 0; max-width: 660px; }
.pagehead .pimg img { width: 100%; max-height: 320px; object-fit: cover; border-radius: var(--radius); box-shadow: var(--lift); }
.calc { background: var(--paper); border-radius: var(--radius); padding: 38px; margin: 32px 0; box-shadow: var(--shadow); border: 1px solid var(--line); max-width: 740px; border-left: 8px solid var(--terra); }
.field { margin-bottom: 20px; }
.field label { display: block; font-weight: 700; margin-bottom: 8px; font-size: .9rem; color: var(--leaf-ink); }
.field input, .field select { width: 100%; padding: 14px 16px; border: 2px solid var(--line); border-radius: 12px; font-size: 1rem; font-family: var(--sans); background: var(--cream); }
.field input:focus, .field select:focus { outline: none; border-color: var(--leaf); background: #fff; }
.field input.invalid { border-color: #b3402e; background: #fdf3f0; }
.field .hint { font-size: .83rem; color: var(--mut); margin-top: 6px; }
.field .error { font-size: .83rem; color: #b3402e; margin-top: 6px; display: none; font-weight: 600; }
.btn-row { display: flex; gap: 12px; margin-top: 10px; }
button.calc-btn { background: linear-gradient(135deg, var(--terra), var(--terra-deep)); color: #fff; border: none; padding: 16px 30px; border-radius: 999px; font-size: 1rem; font-weight: 700; cursor: pointer; flex: 1; box-shadow: 0 10px 24px rgba(194,112,62,.35); transition: transform .15s; }
button.calc-btn:hover { transform: translateY(-2px); }
button.reset-btn { background: transparent; color: var(--mut); border: 2px solid var(--line); padding: 16px 26px; border-radius: 999px; cursor: pointer; font-weight: 700; }
button.reset-btn:hover { border-color: var(--mut); }
.result { display: none; margin-top: 28px; background: linear-gradient(135deg, var(--leaf-deep), var(--leaf)); border-radius: 14px; padding: 30px; color: #fff; }
.result.show { display: block; animation: sprout .35s ease; }
.result .big { font-family: var(--serif); font-size: 2.1rem; font-weight: 700; color: #fff; }
.result .big small { font-size: 1rem; font-family: var(--sans); color: #d5e8d8; }
.result .rrow { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,.2); font-size: .95rem; }
.result .rrow:last-child { border-bottom: none; }
.result .rrow span:first-child { color: #d5e8d8; }
.result .note { font-size: .85rem; color: #d5e8d8; margin-top: 12px; }
article.prose { margin: 40px 0; max-width: 820px; }
article.prose h2 { font-size: 1.6rem; margin: 36px 0 14px; }
article.prose h3 { font-size: 1.15rem; margin: 26px 0 10px; }
article.prose p, article.prose li { margin-bottom: 10px; color: #3d4a3f; }
article.prose ul, article.prose ol { padding-left: 22px; }
article.prose a { color: var(--terra); font-weight: 700; }
table.ref { width: 100%; border-collapse: collapse; margin: 14px 0 26px; font-size: .93rem; background: var(--paper); border-radius: 12px; overflow: hidden; box-shadow: var(--shadow); }
table.ref th { background: var(--leaf-deep); color: #fff; padding: 12px 14px; text-align: left; font-size: .85rem; }
table.ref td { padding: 11px 14px; border-bottom: 1px solid var(--line); }
table.ref tr:last-child td { border-bottom: none; }
table.ref tr:nth-child(even) td { background: #f3f8f1; }
.example { background: var(--terra-pale); border-radius: var(--radius); padding: 22px 26px; margin: 24px 0; border-left: 8px solid var(--terra); font-size: .93rem; }
.example strong { color: var(--terra-deep); }
.tipbox { background: var(--sage); border-radius: var(--radius); padding: 20px 24px; margin: 24px 0; font-size: .92rem; color: var(--leaf-ink); border: 1px solid var(--sage-line); }
.faq details { background: var(--paper); border-radius: var(--radius); margin-bottom: 12px; padding: 18px 24px; box-shadow: var(--shadow); border: 1px solid var(--line); }
.faq summary { font-weight: 700; cursor: pointer; color: var(--leaf-ink); font-family: var(--serif); font-size: 1.05rem; }
.faq p { margin-top: 10px; color: var(--mut); font-size: .94rem; }
.cta-band { background: linear-gradient(120deg, var(--leaf-deep), var(--leaf)); border-radius: var(--radius); padding: 58px 38px; text-align: center; color: #e4f1e6; margin: 64px 0; }
.cta-band h2 { color: #fff; font-size: 2.2rem; margin-bottom: 12px; }
.cta-band h2 .terra { color: #f0c9a5; font-style: italic; }
.cta-band p { margin-bottom: 28px; }
footer.site { background: var(--leaf-ink); color: #a9c2ad; padding: 58px 0 30px; margin-top: 70px; font-size: .9rem; }
footer.site .fgrid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 30px; margin-bottom: 30px; }
footer.site h4 { color: #f0c9a5; font-size: .82rem; text-transform: uppercase; letter-spacing: .1em; margin-bottom: 12px; font-family: var(--sans); }
footer.site a { color: #cfdfd2; text-decoration: none; display: block; margin-bottom: 8px; }
footer.site a:hover { color: #f0c9a5; }
footer.site .brand { color: #fff; }
footer.site .bottom { border-top: 1px solid rgba(255,255,255,.14); padding-top: 22px; color: #7d967f; font-size: .82rem; font-family: var(--mono); }
@keyframes sprout { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } html { scroll-behavior: auto; } }
@media (max-width: 760px) {
  .hero { padding: 70px 0; } .hero h1 { font-size: 2.1rem; }
  .split { grid-template-columns: 1fr; gap: 28px; } .split.flip > div:first-child { order: 0; }
  .calc { padding: 28px 22px; } .btn-row { flex-direction: column; }
  nav.main a { margin-left: 14px; } footer.site .fgrid { grid-template-columns: 1fr 1fr; }
  .pagehead h1 { font-size: 1.9rem; } .hero .vine { width: 240px; }
}