/* Landingpage – gleiche Farben/Schriften wie die App (src/theme/). */
@font-face { font-family: 'Sora'; font-weight: 600; font-display: swap; src: url('../fonts/Sora_600SemiBold.woff2') format('woff2'); }
@font-face { font-family: 'Sora'; font-weight: 700; font-display: swap; src: url('../fonts/Sora_700Bold.woff2') format('woff2'); }
@font-face { font-family: 'Inter'; font-weight: 400; font-display: swap; src: url('../fonts/Inter_400Regular.woff2') format('woff2'); }
@font-face { font-family: 'Inter'; font-weight: 600; font-display: swap; src: url('../fonts/Inter_600SemiBold.woff2') format('woff2'); }

:root {
  --bg: #081215;
  --surface: #10232A;
  --surface-elevated: #0E2A28;
  --border: rgba(43, 228, 196, 0.28);
  --accent: #2BE4C4;
  --accent-soft: rgba(43, 228, 196, 0.14);
  --text: #EAF6F2;
  --text-secondary: #9DB8B3;
  --text-muted: #7C9B97;
  --radius: 16px;
  --radius-lg: 22px;
  --display: 'Sora', system-ui, sans-serif;
  --body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --glow: 0 0 18px rgba(43, 228, 196, 0.35);
  --success: #5FD98A;
  --warning: #E8B14F;
  --danger: #E8899B;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font: 400 17px/1.6 var(--body); }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); }
h1, h2, h3, h4 { font-family: var(--display); font-weight: 700; line-height: 1.15; letter-spacing: -0.01em; margin: 0 0 0.6em; }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.3rem); }
h3 { font-size: 1.2rem; font-weight: 600; }
h4 { font-size: 1.05rem; font-weight: 600; }
p { margin: 0 0 1em; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.wrap { width: 100%; max-width: 1160px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 780px; }
.center { text-align: center; }
.section { padding: 72px 0; }
.section h2 { margin-bottom: 1.1em; }

/* Kopfzeile */
.topbar { position: sticky; top: 0; z-index: 10; background: rgba(8, 18, 21, 0.86); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(43, 228, 196, 0.12); }
.topbar-inner { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font: 700 1.25rem var(--display); }
.brand img { width: 26px; height: 36px; }
.topnav { display: flex; gap: 22px; margin-left: auto; }
.topnav a, .lang { color: var(--text-secondary); text-decoration: none; font-size: 0.95rem; }
.topnav a:hover, .lang:hover { color: var(--text); }
.lang { border: 1px solid var(--border); border-radius: 999px; padding: 3px 12px; font-weight: 600; }
.login { display: inline-flex; align-items: center; gap: 6px; padding: 7px 14px; border-radius: 999px; background: var(--accent); color: var(--bg); font-weight: 600; font-size: 0.95rem; text-decoration: none; }
.login:hover { box-shadow: var(--glow); }
.login .icon-sm { color: var(--bg); }
@media (max-width: 760px) { .topnav { display: none; } .lang { margin-left: auto; } }

/* Hero */
.hero { position: relative; overflow: hidden; padding: 64px 0 40px; }
.hero-bg { position: absolute; inset: 0; background: center / cover no-repeat; opacity: 0.35; }
.hero-bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(8,18,21,0.3) 0%, rgba(8,18,21,0.75) 60%, var(--bg) 100%), linear-gradient(90deg, var(--bg) 0%, rgba(8,18,21,0.4) 70%); }
.hero-inner { position: relative; display: grid; grid-template-columns: 1.25fr 0.75fr; gap: 48px; align-items: center; }
.eyebrow { color: var(--accent); font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; font-size: 0.8rem; margin-bottom: 1em; }
.lead { font-size: 1.15rem; color: var(--text-secondary); max-width: 38em; }
.hero-points { list-style: none; padding: 0; margin: 24px 0 0; display: flex; flex-wrap: wrap; gap: 8px 22px; color: var(--text-secondary); font-size: 0.95rem; }
.hero-points li { display: flex; align-items: center; gap: 6px; }
.hero-phone { display: flex; justify-content: center; }
.hero-phone .phone { max-width: 300px; }
@media (max-width: 860px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-phone .phone { max-width: 260px; }
}

/* Telefon-Rahmen um Screenshots */
.phone { margin: 0; padding: 8px; border-radius: 38px; background: #050b0d; border: 1px solid var(--border); box-shadow: var(--glow), 0 30px 60px rgba(0, 0, 0, 0.5); }
.phone img { border-radius: 30px; width: 100%; }

/* Store-Knöpfe */
.stores { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.center .stores { justify-content: center; }
.store { display: inline-flex; flex-direction: column; justify-content: center; min-width: 170px; height: 54px; padding: 0 18px; border-radius: 12px; background: var(--text); color: var(--bg); text-decoration: none; line-height: 1.15; }
.store-small { font-size: 0.72rem; }
.store-big { font: 600 1.15rem var(--display); }
.store-soon { background: transparent; color: var(--text-secondary); border: 1px dashed var(--border); }
.store-web { background: var(--accent); }
.beta-heading { margin: 20px 0 0; font: 600 1.15rem var(--display); }
.beta-row { margin-top: 12px; }
.beta-title { margin: 0; font-weight: 600; }
.beta-row .stores { margin-top: 8px; }
.store-badge img { height: 54px; width: auto; }
.store-note { color: var(--text-muted); font-size: 0.9rem; margin-top: 10px; }

/* Screenshots */
.section-lead { color: var(--text-secondary); max-width: 46em; margin: -0.6em 0 2em; font-size: 1.05rem; }
.screens { display: grid; grid-template-columns: repeat(3, minmax(0, 260px)); justify-content: center; gap: 36px 44px; }
.screen { margin: 0; text-align: center; }
.screen figcaption { margin-top: 14px; color: var(--text-secondary); font-weight: 600; }
@media (max-width: 900px) {
  .screens { grid-template-columns: none; grid-auto-flow: column; grid-auto-columns: 62%; overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 12px; }
  .screen { scroll-snap-align: center; }
}

/* Karten */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 900px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid { grid-template-columns: 1fr; } }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 26px; }
.card p { color: var(--text-secondary); margin: 0; }
.icon { width: 30px; height: 30px; color: var(--accent); margin-bottom: 14px; filter: drop-shadow(0 0 6px rgba(43, 228, 196, 0.5)); }
.icon-sm { width: 18px; height: 18px; margin: 0; flex: none; filter: none; }

/* KI */
.ai { background: linear-gradient(180deg, transparent, rgba(43,228,196,0.05) 30%, transparent); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .grid-3 { grid-template-columns: 1fr; } }
.card-ai .cost { display: inline-block; margin: -0.3em 0 0.8em; padding: 2px 10px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-size: 0.85rem; font-weight: 600; }
.rules { list-style: none; padding: 0; margin: 28px 0 0; display: flex; flex-wrap: wrap; gap: 10px 28px; color: var(--text-secondary); }
.rules li { display: flex; gap: 8px; align-items: center; }

/* Konto */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 900px) { .steps { grid-template-columns: 1fr; } }
.step { position: relative; padding: 26px 26px 26px 76px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); }
.step p { color: var(--text-secondary); margin: 0; }
.step-no { position: absolute; left: 24px; top: 24px; width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); font: 700 1.1rem var(--display); }
.a11y-note { color: var(--text-muted); font-size: 0.95rem; margin: 18px 0 0; }
.switcher { margin-top: 40px; padding: 28px; border-radius: var(--radius-lg); border: 1px solid var(--accent); background: var(--surface-elevated); box-shadow: var(--glow); }
.switcher p { color: var(--text-secondary); max-width: 52em; }
.button { display: inline-block; padding: 11px 20px; border-radius: 12px; background: var(--accent); color: var(--bg); font-weight: 600; text-decoration: none; }
.button:hover { box-shadow: var(--glow); }

/* Planung */
.split { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 48px; align-items: start; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }
.split p { color: var(--text-secondary); }
.checklist { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.checklist li { display: flex; gap: 10px; align-items: flex-start; }
.checklist .icon-sm { margin-top: 4px; }
.soon { background: var(--surface-elevated); border: 1px dashed var(--border); border-radius: var(--radius-lg); padding: 26px; }
.soon h3 { color: var(--accent); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.06em; }
.soon-item + .soon-item { margin-top: 18px; }
.soon-item p { color: var(--text-secondary); margin: 0; font-size: 0.95rem; }

/* Preise */
.plans { display: grid; grid-template-columns: repeat(2, minmax(0, 380px)); gap: 20px; }
@media (max-width: 700px) { .plans { grid-template-columns: 1fr; } }
.plan .price { font: 700 2rem var(--display); color: var(--text); margin: 0 0 0.1em; }
.plan .price-note { font-size: 0.9rem; margin-bottom: 18px; }
.plan .checklist { margin-top: 18px; }
.plan .checklist li { color: var(--text-secondary); }
.plan-pro { border-color: var(--accent); box-shadow: var(--glow); }
.price-extra { color: var(--text-secondary); margin-top: 20px; }

/* FAQ */
.faq { border-bottom: 1px solid rgba(43, 228, 196, 0.15); }
.faq summary { cursor: pointer; padding: 18px 0; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; color: var(--accent); font-size: 1.4rem; line-height: 1; }
.faq[open] summary::after { content: '–'; }
.faq p { color: var(--text-secondary); margin: 0 0 18px; }

.cta-mark { margin: 0 auto 18px; width: 59px; height: auto; }
.cta { background: radial-gradient(ellipse at center, var(--accent-soft), transparent 70%); }
.cta p { color: var(--text-secondary); }

/* Rechtliches */
.legal h1 { hyphens: auto; overflow-wrap: break-word; }
.legal .fill { display: inline-block; max-width: 100%; overflow: hidden; vertical-align: bottom; }
.legal h2 { font-size: 1.25rem; margin-top: 1.8em; }
.legal p { color: var(--text-secondary); }
.legal h3 { font-size: 1.05rem; margin-top: 1.4em; }
.legal li { color: var(--text-secondary); margin: 0.3em 0; }

/* Fußzeile */
.footer { border-top: 1px solid rgba(43, 228, 196, 0.12); padding: 28px 0 40px; color: var(--text-muted); font-size: 0.9rem; }
.footer-inner { display: flex; flex-wrap: wrap; gap: 12px 28px; justify-content: space-between; }
.footer p { margin: 0; }
.footer nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.footer a { display: inline-block; padding: 10px 0; color: var(--text-secondary); text-decoration: none; }
.footer a:hover { color: var(--text); }

/* Rechner auf der Startseite */
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 700px) { .grid-2 { grid-template-columns: 1fr; } }
.card-link { display: block; color: var(--text); text-decoration: none; transition: box-shadow 0.15s, border-color 0.15s; }
.card-link:hover { border-color: var(--accent); box-shadow: var(--glow); }
.card-link h3::after { content: ' →'; color: var(--accent); }
.footer-tools { width: 100%; }

/* Rechner-Seiten */
.calc-hero { padding-bottom: 24px; }
.crumbs { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 18px; }
.crumbs a { display: inline-block; padding: 10px 0; color: var(--text-secondary); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.calc-section { padding: 0 0 24px; }
.calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.calc-wide { grid-column: 1 / -1; }
@media (max-width: 860px) { .calc-grid { grid-template-columns: 1fr; } }
.calc-card { margin: 0; min-width: 0; }
fieldset.calc-card { border: 1px solid var(--border); }
.calc-card legend { float: left; width: 100%; padding: 0; margin-bottom: 14px; font: 600 1.15rem var(--display); color: var(--text); }
.calc-card legend + * { clear: both; }
.calc-card .choices legend { float: none; width: auto; margin: 22px 0 10px; font: 600 0.9rem var(--body); color: var(--text-secondary); }
.fields { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 14px; align-items: end; }
.fields-4 { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 0.9rem; color: var(--text-secondary); font-weight: 600; }
.field input, .field select { width: 100%; min-height: 48px; padding: 10px 12px; border-radius: 12px; border: 1px solid var(--text-muted); background: var(--bg); color: var(--text); font: 400 1.05rem var(--body); }
.field input:focus, .field select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.field-note, .opt { font-size: 0.82rem; color: var(--text-muted); font-weight: 400; }
.card .group-label, .group-label { margin: 22px 0 10px; font-weight: 600; color: var(--text-secondary); font-size: 0.9rem; }
.choices { display: grid; gap: 8px; }
.choices { border: 0; margin: 0; padding: 0; min-width: 0; }
.choice, .check { display: flex; align-items: center; gap: 10px; min-height: 44px; padding: 8px 12px; border: 1px solid var(--text-muted); border-radius: 12px; cursor: pointer; color: var(--text); }
.choice input, .check input { width: 20px; height: 20px; accent-color: var(--accent); flex: none; }
.choice:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); }
.check { margin-top: 12px; }
.card .calc-hint, .card .calc-sub, .card .calc-note { color: var(--text-muted); font-size: 0.92rem; margin-top: 14px; }
.card .calc-note { margin-top: 18px; }
.calc-error { color: var(--danger); margin-top: 14px; }
.calc-result { margin-top: 18px; }
.calc-target { color: var(--text-secondary); margin-top: 14px; }
.card .calc-advice, .card .calc-strong { color: var(--text); margin-top: 12px; }
.big-label { margin: 0; font-weight: 600; color: var(--text-secondary); }
.card .big { margin: 0; font: 700 2.6rem/1.1 var(--display); color: var(--accent); }
.big .unit { font: 600 1rem var(--body); color: var(--text-secondary); }
.card .calc-warn, .calc-warn { margin-top: 14px; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--warning); background: rgba(232, 177, 79, 0.08); color: var(--text); font-size: 0.95rem; }
.calc-warn p { color: var(--text); margin: 6px 0 0; }
.level { display: inline-flex; align-items: center; gap: 8px; margin: 10px 0 0; padding: 4px 12px 4px 4px; border-radius: 999px; font-weight: 600; border: 1px solid currentColor; }
.card .level { color: var(--text); }
.level-mark { display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; color: var(--bg); font-size: 0.85rem; }
.level-ok { border-color: var(--success); } .level-ok .level-mark { background: var(--success); }
.level-low, .level-high { border-color: var(--warning); } .level-low .level-mark, .level-high .level-mark { background: var(--warning); }
.level-tooLow, .level-tooHigh { border-color: var(--danger); } .level-tooLow .level-mark, .level-tooHigh .level-mark { background: var(--danger); }
.scale { position: relative; height: 10px; margin-top: 18px; border-radius: 999px; background: rgba(157, 184, 179, 0.2); }
.scale-band { position: absolute; top: 0; bottom: 0; border-radius: 999px; background: var(--success); opacity: 0.75; }
.scale-marker { position: absolute; top: -5px; width: 4px; height: 20px; margin-left: -2px; border-radius: 2px; background: var(--text); box-shadow: 0 0 0 2px var(--bg); }
.scale-ticks { display: flex; justify-content: space-between; margin-top: 6px; font-size: 0.75rem; color: var(--text-muted); }
.mixbar { height: 12px; margin: 14px 0; border-radius: 999px; background: var(--text-secondary); overflow: hidden; }
.mixbar-ro { display: block; height: 100%; background: var(--accent); }
.mix { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 0; }
.mix-3 { grid-template-columns: repeat(3, 1fr); }
.mix div { padding: 10px 12px; border-radius: 12px; background: var(--bg); }
.mix dt { font-size: 0.82rem; color: var(--text-muted); }
.mix dd { margin: 2px 0 0; font: 600 1.15rem var(--display); color: var(--text); }
@media (max-width: 420px) { .mix-3 { grid-template-columns: 1fr 1fr; } }
.prose p, .prose li { color: var(--text-secondary); }
.prose strong { color: var(--text); }
.plain { padding-left: 1.2em; }
.plain li { margin-bottom: 0.5em; }
.app-box { margin-top: 0; }
.app-box img { width: 56px; margin-bottom: 14px; }
.app-box .rules { margin-top: 12px; }
.related { margin-top: 28px; color: var(--text-secondary); }

/* Einwilligungs-Banner */
.consent { position: fixed; left: 0; right: 0; bottom: 0; z-index: 20; padding: 64px 12px 12px; pointer-events: none;
  /* Nur der Bereich hinter dem Banner wird dunkler; die Seite bleibt bedienbar (keine Cookie-Wand). */
  background: linear-gradient(to top, rgba(4, 10, 12, 0.92), rgba(4, 10, 12, 0.75) 55%, rgba(4, 10, 12, 0)); }
.consent-inner { pointer-events: auto; max-width: 760px; margin: 0 auto; padding: 18px 20px; border-radius: var(--radius-lg); border: 1px solid var(--accent); background: var(--surface-elevated); box-shadow: var(--glow), 0 -10px 40px rgba(0, 0, 0, 0.6); }
.consent-inner p { color: var(--text-secondary); font-size: 0.92rem; margin: 0 0 12px; }
.consent-inner .consent-title { color: var(--text); font-weight: 600; font-size: 1rem; margin-bottom: 6px; }
.consent-buttons { display: flex; flex-wrap: wrap; gap: 10px; justify-content: flex-end; }
.consent-buttons .button { border: 1px solid var(--accent); font: 600 1rem var(--body); cursor: pointer; min-height: 44px; }
.button-ghost { background: transparent; color: var(--text); }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

/* Weitere Rechner (pages/*.mjs) */
/* hidden gilt immer, auch gegen display aus Klassen wie .fields (sonst bleiben versteckte Felder sichtbar) */
[hidden] { display: none !important; }
.fields-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 420px) { .fields-3 { grid-template-columns: 1fr 1fr; } }
.calc-card .fields + .fields { margin-top: 14px; }
.check + .fields { margin-top: 12px; }
.stock-row { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr) 44px; margin-bottom: 14px; }
@media (max-width: 560px) { .stock-row { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) 44px; } .stock-name { grid-column: 1 / -1; } }
.stock-remove { width: 44px; height: 48px; border-radius: 12px; border: 1px solid var(--text-muted); background: transparent; color: var(--text); font-size: 1.4rem; cursor: pointer; }
.stock-remove:hover, .stock-remove:focus-visible { border-color: var(--danger); color: var(--danger); }
.calc-add { min-height: 44px; padding: 8px 16px; border: 1px solid var(--accent); border-radius: 12px; font: 600 1rem var(--body); cursor: pointer; }
.calc-warn p:first-child { margin-top: 0; }
.choice-sub { font-size: 0.88rem; color: var(--text-muted); }
.choice:has(input:checked) .choice-sub { color: var(--text-secondary); }
.quiz-questions { display: grid; gap: 16px; align-content: start; }
.quiz-q { border: 1px solid var(--border); }
.calc-card .choices .quiz-legend { float: left; width: 100%; display: flex; gap: 10px; align-items: baseline; margin-bottom: 12px; font: 600 1.05rem var(--display); color: var(--text); }
.quiz-legend + * { clear: both; }
.quiz-num { display: inline-grid; place-items: center; flex: none; width: 26px; height: 26px; border-radius: 50%; background: var(--accent); color: var(--bg); font-size: 0.85rem; }
.quiz-result { position: sticky; top: 16px; align-self: start; }
@media (max-width: 860px) { .quiz-result { position: static; } }
.quiz-result-h { font-size: 1.3rem; margin: 0 0 8px; }
.quiz-set { margin-top: 14px; padding: 12px 14px; border-radius: 12px; background: var(--bg); border: 1px solid var(--border); }
.quiz-set-main { border-color: var(--accent); }
.card .quiz-set-label { margin: 0; font-size: 0.8rem; font-weight: 600; color: var(--accent); text-transform: uppercase; letter-spacing: 0.04em; }
.card .quiz-set-name { margin: 2px 0 0; font: 600 1.15rem var(--display); color: var(--text); }
.quiz-set .calc-sub { margin-top: 4px; }
.quiz-hints { margin-top: 14px; }
.algae-desc { display: block; margin-top: 4px; font-weight: 400; font-size: 0.92rem; color: var(--text-muted); }