/* Heilsan – Website (heilsan.de). Eigenständig: keine externen Schriften oder Skripte (keine Datenübertragung an Dritte). */
:root {
  --bg: #eef1f5; --panel: #ffffff; --panel2: #f4f6f9; --line: rgba(15, 23, 42, 0.08);
  --text: #0f172a; --text2: #334155; --muted: #4b5563;
  --accent: #0b6a63; --accent-soft: rgba(11, 106, 99, 0.09); --ink: #0f172a; --ink-text: #ffffff;
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 12px 32px rgba(15, 23, 42, 0.06);
  --r: 24px; --max: 1120px;
  color-scheme: light dark;
}
/* Dunkel: folgt dem System, solange niemand gewählt hat; der Schalter oben rechts setzt data-theme (site.js) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --bg: #0a101c; --panel: #111a2b; --panel2: #162236; --line: rgba(148, 163, 184, 0.16); --text: #e8eef7; --text2: #c6d1e1; --muted: #a3b0c2;
    --accent: #2dd4bf; --accent-soft: rgba(45, 212, 191, 0.12); --ink: #e8eef7; --ink-text: #0a101c; --shadow: 0 10px 30px rgba(0, 0, 0, 0.35); color-scheme: dark; }
}
:root[data-theme="dark"] { --bg: #0a101c; --panel: #111a2b; --panel2: #162236; --line: rgba(148, 163, 184, 0.16); --text: #e8eef7; --text2: #c6d1e1; --muted: #a3b0c2;
    --accent: #2dd4bf; --accent-soft: rgba(45, 212, 191, 0.12); --ink: #e8eef7; --ink-text: #0a101c; --shadow: 0 10px 30px rgba(0, 0, 0, 0.35); color-scheme: dark; }
:root[data-theme="light"] { color-scheme: light; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; }
a { color: var(--accent); }
a:focus-visible, button:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 8px; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 16px; }
.skip { position: absolute; left: -9999px; } .skip:focus { left: 16px; top: 12px; z-index: 10; background: var(--panel); padding: 8px 12px; border-radius: 10px; }

header.top { position: sticky; top: 0; z-index: 5; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(10px); }
header.top .wrap { display: flex; align-items: center; gap: 16px; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 700; font-size: 18px; letter-spacing: -0.01em; }
.brand img { width: 34px; height: 34px; }
nav.main { margin-left: auto; display: flex; gap: 4px; align-items: center; }
nav.main a { color: var(--text2); text-decoration: none; padding: 8px 12px; border-radius: 999px; font-weight: 500; font-size: 15px; }
nav.main a:hover { background: var(--panel); }
.btn { display: inline-flex; align-items: center; gap: 8px; height: 44px; padding: 0 20px; border-radius: 999px; font-weight: 600; text-decoration: none; border: 1px solid var(--line); background: var(--panel); color: var(--text); }
.btn.primary { background: var(--ink); color: var(--ink-text); border-color: transparent; }
nav.main .btn { height: 38px; padding: 0 16px; margin-left: 6px; color: var(--ink-text); }
nav.main .btn:hover { background: var(--ink); opacity: .9; }
@media (max-width: 760px) { nav.main a:not(.btn):not(.login) { display: none; } nav.main .btn { padding: 0 14px; font-size: 14px; } }

.hero { padding: 56px 0 40px; }
.hero .wrap { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 32px; align-items: center; }
.eyebrow { display: inline-block; font-size: 13px; font-weight: 600; color: var(--accent); background: var(--accent-soft); padding: 4px 12px; border-radius: 999px; }
h1 { font-size: clamp(34px, 5vw, 54px); line-height: 1.08; letter-spacing: -0.035em; margin: 16px 0 16px; font-weight: 650; }
h2 { font-size: clamp(26px, 3.4vw, 36px); line-height: 1.15; letter-spacing: -0.025em; margin: 0 0 12px; font-weight: 650; }
h3 { font-size: 18px; margin: 0 0 6px; letter-spacing: -0.01em; }
.lead { font-size: 18px; color: var(--text2); max-width: 36em; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.note { font-size: 14px; color: var(--muted); margin-top: 14px; }
.panel { background: var(--panel); border-radius: var(--r); box-shadow: var(--shadow); padding: 24px; }
.phone { padding: 22px; }
.phone .sig { border-radius: 20px; padding: 20px; color: #fff; background: linear-gradient(140deg, #0d6b64, #134e4a); }
.phone .sig small { display: block; font-size: 14px; opacity: .95; }
.phone .sig b { display: block; font-size: 34px; letter-spacing: -0.03em; margin: 4px 0; }
.phone ul { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 10px; }
.phone li { display: flex; justify-content: space-between; gap: 12px; padding: 12px 14px; border-radius: 14px; background: var(--panel2); font-size: 15px; }
.phone li span:last-child { color: var(--muted); }
@media (max-width: 860px) { .hero .wrap { grid-template-columns: 1fr; } }

section { padding: 48px 0; }
.sec-head { max-width: 44em; margin-bottom: 24px; }
.sec-head p { color: var(--text2); margin: 0; }
.grid { display: grid; gap: 16px; }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 860px) { .g3, .g2 { grid-template-columns: 1fr; } }
.card { background: var(--panel); border-radius: var(--r); box-shadow: var(--shadow); padding: 24px; }
.card p { margin: 0; color: var(--text2); }
.step { font-size: 13px; font-weight: 700; color: var(--accent); }
.tag { display: inline-block; font-size: 12.5px; font-weight: 600; padding: 3px 10px; border-radius: 999px; background: var(--panel2); color: var(--text2); margin-bottom: 10px; }
.card ul { margin: 12px 0 0; padding-left: 18px; color: var(--text2); }
.card li { margin: 4px 0; }
.ic { width: 40px; height: 40px; border-radius: 999px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); margin-bottom: 12px; }
.ic svg { width: 20px; height: 20px; }
.band { background: var(--ink); color: var(--ink-text); border-radius: 28px; padding: 32px; display: flex; gap: 24px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.band p { margin: 6px 0 0; opacity: .9; max-width: 40em; }
.band .btn { background: var(--ink-text); color: var(--ink); border-color: transparent; }
.fine { font-size: 14px; color: var(--muted); }

footer { padding: 32px 0 48px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; gap: 16px; flex-wrap: wrap; justify-content: space-between; border-top: 1px solid var(--line); padding-top: 24px; }
footer a { color: var(--text2); }
footer nav { display: flex; gap: 16px; }

.doc { max-width: 760px; }
.doc h1 { font-size: 36px; }
.doc h2 { font-size: 22px; margin-top: 32px; }
.doc .todo { background: #fff7e6; color: #7a4a00; border-radius: 8px; padding: 1px 6px; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .doc .todo { background: #3a2a0a; color: #ffd28c; } :root:not([data-theme="light"]) .brand img { filter: invert(1); } }
:root[data-theme="dark"] .doc .todo { background: #3a2a0a; color: #ffd28c; }
:root[data-theme="dark"] .brand img { filter: invert(1); }

/* Schalter hell/dunkel */
.theme-toggle { width: 40px; height: 40px; border-radius: 999px; border: 1px solid var(--line); background: var(--panel); color: var(--text); display: inline-grid; place-items: center; cursor: pointer; margin-left: 6px; padding: 0; }
.theme-toggle:hover { background: var(--panel2); }
.theme-toggle svg { width: 18px; height: 18px; }
/* Das Symbol zeigt, wohin der Klick schaltet: Mond im hellen, Sonne im dunklen Design */
.theme-toggle .sun { display: none; }
:root[data-theme="dark"] .theme-toggle .moon { display: none; } :root[data-theme="dark"] .theme-toggle .sun { display: block; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .theme-toggle .moon { display: none; } :root:not([data-theme="light"]) .theme-toggle .sun { display: block; } }
.theme-toggle[hidden] { display: none; }
.theme-toggle.push { margin-left: auto; }
header.top .theme-toggle { flex: 0 0 auto; }

/* Erklärvideo */
.video { margin: 0 0 16px; background: var(--panel); border-radius: var(--r); box-shadow: var(--shadow); overflow: hidden; }
.video video { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; background: var(--panel2); }
.video figcaption { padding: 14px 24px 18px; color: var(--text2); }
.video summary { cursor: pointer; font-weight: 600; color: var(--accent); }
.video details p { margin: 10px 0 0; max-width: 60em; }
section { scroll-margin-top: 80px; }
/* Anmelden: schlichter Textlink neben dem Hauptknopf, führt zur geschützten Demo auf app.heilsan.de */
a.login, nav.main a.login { color: var(--text); text-decoration: none; font-weight: 600; font-size: 15px; padding: 8px 12px; border-radius: 999px; white-space: nowrap; }
nav.main a.login { margin-left: 10px; position: relative; }
nav.main a.login::before { content: ""; position: absolute; left: -8px; top: 9px; bottom: 9px; border-left: 1px solid var(--line); }
a.login:hover, nav.main a.login:hover { background: var(--panel); }
a.login:focus-visible { outline: 2px solid var(--accent, currentColor); outline-offset: 2px; }
a.login.push { margin-left: auto; }
/* schmale Handys: der Hauptknopf steht direkt darunter im Kopfbereich der Seite, oben bleibt nur „Anmelden“ */
@media (max-width: 480px) { nav.main .btn { display: none; } nav.main a.login { margin-left: 0; } nav.main a.login::before { display: none; } }
/* Demo-Zugang (Abschnitt #demo): Erklärung links, Zugangsdaten und Knopf rechts */
.demo { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 32px; align-items: center; }
.demo p + p { margin-top: 12px; }
.zugang { margin: 0 0 12px; border: 1px solid var(--line); border-radius: var(--r-sm, 14px); overflow: hidden; }
.zugang div { display: flex; justify-content: space-between; gap: 16px; padding: 12px 16px; }
.zugang div + div { border-top: 1px solid var(--line); }
.zugang dt { color: var(--muted); margin: 0; }
.zugang dd { margin: 0; font-weight: 600; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; user-select: all; }
.demo .btn { margin-top: 12px; }
@media (max-width: 860px) { .demo { grid-template-columns: 1fr; gap: 20px; } }