/* aus elektrochemie-prototyp.html übernommen */
/* Layout: Journal-Satzspiegel (eine Textspalte ~65ch) + Marginalien im Stil einer Konstruktionszeichnung */
:root{
  --paper:#f6f7f5; --ink:#1b2129; --muted:#5a6370; --rule:#c9cfd6; --accent:#1f4f8f; --accent-soft:#e3eaf4; --warn:#8a5a12;
  --serif:"EB Garamond", Garamond, "Times New Roman", serif;
  --mono:"IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --paper:#14181d; --ink:#e4e7eb; --muted:#9aa4b0; --rule:#323a44; --accent:#86a9de; --accent-soft:#1d2836; --warn:#d6a85a; color-scheme:dark}}
:root[data-theme="dark"]{--paper:#14181d; --ink:#e4e7eb; --muted:#9aa4b0; --rule:#323a44; --accent:#86a9de; --accent-soft:#1d2836; --warn:#d6a85a; color-scheme:dark}

body{background:var(--paper);color:var(--ink);font-family:var(--serif);font-size:19px;line-height:1.55;margin:0}
.wrap{max-width:46rem;margin:0 auto;padding-inline:20px;padding-block:0 3rem}
a{color:var(--accent);text-underline-offset:3px}
a:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
h1,h2,h3{font-weight:500;text-wrap:balance;line-height:1.15;margin:0}
h1{font-size:clamp(2rem,5.5vw,3.1rem);letter-spacing:-.01em}
h2{font-size:1.55rem}
h3{font-size:1.18rem;font-weight:600}
p{margin:0}
.mono,.eyebrow,.label{font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.stack{display:flex;flex-direction:column;gap:1rem}
.section{display:flex;flex-direction:column;gap:1rem;padding-block:2.2rem;border-top:1px solid var(--rule)}

/* Kopf */
header.top{position:sticky;top:env(safe-area-inset-top,0px);background:var(--paper);border-bottom:1px solid var(--rule);z-index:5}
.topin{max-width:46rem;margin:0 auto;padding-inline:20px;padding-block:.7rem;display:flex;gap:1rem;align-items:baseline;justify-content:space-between;flex-wrap:wrap}
.brand{font-family:var(--mono);font-size:.82rem;letter-spacing:.04em;color:var(--ink);text-decoration:none}
.brand b{color:var(--accent);font-weight:500}
nav{display:flex;gap:1.1rem;flex-wrap:wrap}
nav a{font-family:var(--mono);font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;text-decoration:none;color:var(--muted)}
nav a[aria-current="page"]{color:var(--accent)}
nav a.login{border-left:1px solid var(--rule);padding-left:1.1rem}

/* Hero */
.hero{display:flex;flex-direction:column;gap:1.1rem;padding-block:3rem 2.2rem}
.lede{font-size:1.2rem;color:var(--muted);max-width:38rem}
.thesis{border-left:2px solid var(--accent);padding-left:1rem;font-style:italic}

/* Drei Sätze */
ol.three{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.8rem;counter-reset:s}
ol.three li{display:grid;grid-template-columns:2.2rem 1fr;gap:.4rem;counter-increment:s}
ol.three li::before{content:counter(s);font-family:var(--mono);font-size:.8rem;color:var(--accent);padding-top:.35rem}

/* Hypothese-Marke */
.hyp{font-family:var(--mono);font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;color:var(--warn);border:1px solid currentColor;padding:.05rem .35rem;border-radius:2px;white-space:nowrap;vertical-align:.15em}

/* Abbildungen */
figure{margin:0;display:flex;flex-direction:column;gap:.5rem}
.fig{border:1px solid var(--rule);padding:.8rem;overflow-x:auto;background:var(--paper)}
figcaption{font-size:.92rem;color:var(--muted)}
figcaption .label{margin-right:.4rem}
svg text{font-family:var(--mono)}

/* Methodenlandkarte */
.map{display:grid;grid-template-columns:repeat(auto-fit,minmax(13.5rem,1fr));gap:1px;background:var(--rule);border:1px solid var(--rule)}
.tile{background:var(--paper);padding:1rem 1rem 1.1rem;display:flex;flex-direction:column;gap:.45rem;text-decoration:none;color:var(--ink);min-width:0}
.tile .q{font-size:1rem;color:var(--muted);line-height:1.4}
.tile .go{font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--accent);margin-top:auto}
.tile.off .go{color:var(--muted)}
a.tile:hover{background:var(--accent-soft)}

/* Ehrlich-Liste */
dl.honest{margin:0;display:grid;grid-template-columns:minmax(8rem,12rem) 1fr;gap:.7rem 1.2rem}
dl.honest dt{font-family:var(--mono);font-size:.76rem;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);padding-top:.3rem}
dl.honest dd{margin:0}
@media (max-width:560px){dl.honest{grid-template-columns:1fr}dl.honest dd{margin-bottom:.4rem}}

/* Experiment */
.outcomes{display:grid;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));gap:1rem}
.out{border:1px solid var(--rule);padding:1rem;display:flex;flex-direction:column;gap:.4rem;min-width:0}
.out .label{color:var(--accent)}
ol.steps{margin:0;padding-left:1.3rem;display:flex;flex-direction:column;gap:.45rem}
ul.plain{margin:0;padding-left:1.2rem;display:flex;flex-direction:column;gap:.45rem}
.formula{font-family:var(--mono);font-size:.92rem;background:var(--accent-soft);padding:.7rem .9rem;overflow-x:auto}
.back{font-family:var(--mono);font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;text-decoration:none}
.cta{display:inline-block;border:1px solid var(--accent);color:var(--accent);padding:.55rem 1rem;font-family:var(--mono);font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;text-decoration:none;align-self:flex-start}
.cta:hover{background:var(--accent-soft)}
.note{font-size:.92rem;color:var(--muted)}

/* Fuß */
footer.foot{border-top:1px solid var(--rule)}
.footin{max-width:46rem;margin:0 auto;padding-inline:20px;padding-block:1.6rem 2.4rem;display:grid;grid-template-columns:repeat(auto-fit,minmax(12rem,1fr));gap:1.2rem;font-size:.95rem}
.footin .stack{gap:.35rem}
.footin a{text-decoration:none}
.internal{font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)!important}

.view[hidden]{display:none!important}
@media (prefers-reduced-motion:no-preference){.view{animation:in .25s ease-out}@keyframes in{from{opacity:.4}to{opacity:1}}}

/* Ergänzt beim Zerlegen: Sprachumschalter und Hell/Dunkel-Schalter im Kopf */
.tools{display:flex;gap:.9rem;align-items:baseline;border-left:1px solid var(--rule);padding-left:1.1rem}
.tools .lang{font-family:var(--mono);font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.tools .lang a{text-decoration:none;color:var(--muted)}
.tools .lang b{font-weight:500;color:var(--accent)}
.tools button{font:inherit;font-family:var(--mono);font-size:.9rem;line-height:1;background:none;border:0;padding:0;color:var(--muted);cursor:pointer}
.tools button:hover,.tools .lang a:hover{color:var(--accent)}
.tools button:focus-visible{outline:2px solid var(--accent);outline-offset:3px}