:root{
  --bg:#f6f5f1; --surface:#ffffff; --surface-2:#efede7; --text:#1f2328; --muted:#646a73;
  --border:#dedbd2; --accent:#c2410c; --accent-soft:#fdeee5; --accent-text:#ffffff;
  --ok:#15803d; --ok-soft:#e7f6ec; --warn:#b45309; --warn-soft:#fdf3e1; --bad:#b91c1c; --bad-soft:#fdeaea;
  --shadow:0 1px 2px rgba(0,0,0,.06),0 4px 14px rgba(0,0,0,.05);
  --radius:14px; --nav-h:64px;
  /* Safe Areas (Dynamic Island, Home-Indikator, Querformat) */
  --sat:env(safe-area-inset-top,0px); --sab:env(safe-area-inset-bottom,0px);
  --sal:env(safe-area-inset-left,0px); --sar:env(safe-area-inset-right,0px);
  --gutter-l:max(16px,var(--sal)); --gutter-r:max(16px,var(--sar));
  color-scheme:light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#15171a; --surface:#1e2125; --surface-2:#272b30; --text:#e8e6e1; --muted:#9aa0a8;
    --border:#33383e; --accent:#f97316; --accent-soft:#3a2416; --accent-text:#1b0f06;
    --ok:#4ade80; --ok-soft:#183223; --warn:#fbbf24; --warn-soft:#3a2e14; --bad:#f87171; --bad-soft:#3b1d1d;
    --shadow:0 1px 2px rgba(0,0,0,.4); color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#15171a; --surface:#1e2125; --surface-2:#272b30; --text:#e8e6e1; --muted:#9aa0a8;
  --border:#33383e; --accent:#f97316; --accent-soft:#3a2416; --accent-text:#1b0f06;
  --ok:#4ade80; --ok-soft:#183223; --warn:#fbbf24; --warn-soft:#3a2e14; --bad:#f87171; --bad-soft:#3b1d1d;
  --shadow:0 1px 2px rgba(0,0,0,.4); color-scheme:dark;
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;min-height:100dvh}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{background:var(--bg);color:var(--text);font:16px/1.45 -apple-system,BlinkMacSystemFont,system-ui,"Segoe UI",Roboto,sans-serif;-webkit-tap-highlight-color:transparent;-webkit-font-smoothing:antialiased}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
.app{max-width:680px;margin:0 auto;min-height:100%;display:flex;flex-direction:column}
.icon-btn{flex:none;border:1px solid var(--border);background:var(--surface);border-radius:12px;width:44px;height:44px;display:grid;place-items:center;font-size:18px}
main{flex:1;padding:calc(16px + var(--sat)) var(--gutter-r) calc(var(--nav-h) + var(--sab) + 24px) var(--gutter-l)}
section.view{display:none}
section.view.active{display:block}
nav.tabs{position:fixed;bottom:0;left:0;right:0;z-index:6;background:color-mix(in srgb,var(--surface) 90%,transparent);-webkit-backdrop-filter:saturate(180%) blur(16px);backdrop-filter:saturate(180%) blur(16px);border-top:1px solid var(--border);padding:0 var(--sar) var(--sab) var(--sal)}
nav.tabs .inner{max-width:680px;margin:0 auto;display:grid;grid-template-columns:repeat(5,1fr);height:var(--nav-h)}
nav.tabs button{border:0;background:none;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:var(--muted);font-size:12px}
nav.tabs button .ico{font-size:20px;line-height:1}
nav.tabs button.active{color:var(--accent);font-weight:600}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:14px;box-shadow:var(--shadow)}
.stack>*+*{margin-top:12px}
h2{font-size:20px;margin:0 0 4px}
h3{font-size:16px;margin:0 0 8px}
.muted{color:var(--muted)}
.small{font-size:13px}
.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.grow{flex:1;min-width:0}
.btn{border:1px solid var(--border);background:var(--surface);border-radius:10px;padding:9px 14px;font-weight:550}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-text)}
.btn.ghost{background:transparent}
.btn.sm{padding:5px 10px;font-size:14px}
.btn:disabled{opacity:.5;cursor:default}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:1px solid var(--border);background:var(--surface);border-radius:999px;padding:7px 13px;font-size:14px}
.chip.active{background:var(--accent-soft);border-color:var(--accent);color:var(--accent);font-weight:600}
/* iOS zoomt bei Eingabefeldern unter 16px automatisch hinein – daher immer 16px */
input[type=text],input[type=password],input[type=number],select,textarea{width:100%;border:1px solid var(--border);background:var(--surface);border-radius:12px;padding:11px 12px;font-size:16px;min-height:44px;-webkit-appearance:none;appearance:none}
select{background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 18px) 50%,calc(100% - 13px) 50%;background-size:5px 5px;background-repeat:no-repeat;padding-right:32px}
input[type=checkbox]{width:22px;height:22px;accent-color:var(--accent);flex:none}
textarea{resize:vertical;min-height:80px}
label.field{display:block}
label.field>span{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}
.notice{border-radius:10px;padding:10px 12px;font-size:14px;background:var(--warn-soft);color:var(--text);border:1px solid var(--border)}
.notice.err{background:var(--bad-soft)}
/* chat */
.chat{display:flex;flex-direction:column;gap:10px;padding-bottom:8px}
.msg{max-width:88%;padding:10px 12px;border-radius:14px;position:relative}
.msg.me{align-self:flex-end;background:var(--accent-soft);border:1px solid var(--border);border-bottom-right-radius:4px}
.msg.bot{align-self:flex-start;background:var(--surface);border:1px solid var(--border);border-bottom-left-radius:4px}
.msg .es{font-size:17px}
.msg .de{font-size:14px;color:var(--muted);margin-top:6px;display:none}
.msg.show-de .de{display:block}
.msg .tools{display:flex;gap:6px;margin-top:6px}
.mini{border:1px solid var(--border);background:var(--surface-2);border-radius:8px;padding:3px 8px;font-size:13px}
.corr{align-self:flex-end;max-width:88%;font-size:14px;border-radius:10px;padding:8px 10px;border:1px solid var(--border)}
.corr.bad{background:var(--warn-soft)}
.corr.good{background:var(--ok-soft)}
.corr b{font-weight:600}
.corr .lbl{color:var(--muted)}
.typing{align-self:flex-start;color:var(--muted);font-size:14px;padding:4px 8px}
.composer{position:sticky;bottom:calc(var(--nav-h) + var(--sab));background:var(--bg);padding:10px 0 4px;margin-top:8px}
.mic-wrap{display:flex;flex-direction:column;align-items:center;gap:6px;margin-bottom:10px}
.mic{width:84px;height:84px;border-radius:50%;border:0;background:var(--accent);color:var(--accent-text);font-size:34px;box-shadow:var(--shadow);touch-action:none;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;transition:transform .1s}
.mic.listening{animation:pulse 1.2s infinite;transform:scale(1.06)}
.mic.sm{width:44px;height:44px;font-size:20px}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(249,115,22,.5)}70%{box-shadow:0 0 0 18px rgba(249,115,22,0)}100%{box-shadow:0 0 0 0 rgba(249,115,22,0)}}
.interim{min-height:20px;font-size:14px;color:var(--muted);text-align:center}
.de-row{margin-bottom:8px;display:flex;justify-content:center;flex-wrap:wrap;gap:8px}
.sugg{margin-bottom:8px;text-align:center}
.tip{margin-bottom:8px}
.tip summary{cursor:pointer;font-size:14px}
.tip-body{margin-top:6px}
.de-toggle{font-size:13px}
.msg .tr{margin-top:6px;padding-top:6px;border-top:1px dashed var(--border)}
.textrow{display:flex;gap:8px}
.textrow input{flex:1}
/* scenarios */
.grid2{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}
.scen{text-align:left;border:1px solid var(--border);background:var(--surface);border-radius:12px;padding:12px}
.scen.active{border-color:var(--accent);background:var(--accent-soft)}
.scen .em{font-size:24px}
.scen b{display:block;margin-top:4px}
.scen span{font-size:13px;color:var(--muted)}
.grade{font-size:44px;font-weight:700;color:var(--accent);line-height:1}
.list{list-style:none;padding:0;margin:0}
.list li{padding:8px 0;border-top:1px solid var(--border)}
.list li:first-child{border-top:0}
/* flashcards */
.deck{display:flex;align-items:center;gap:10px}
.badge{display:inline-block;font-size:12px;padding:2px 8px;border-radius:999px;background:var(--surface-2);color:var(--muted)}
.badge.due{background:var(--accent-soft);color:var(--accent);font-weight:600}
.flash{perspective:1000px;height:260px;cursor:pointer}
.flash-inner{position:relative;width:100%;height:100%;transition:transform .45s;-webkit-transform-style:preserve-3d;transform-style:preserve-3d}
.flash.flipped .flash-inner{transform:rotateY(180deg)}
.face{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;border-radius:16px;border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:18px;text-align:center}
.face.back{transform:rotateY(180deg)}
.face .big{font-size:28px;font-weight:650}
.face .ex{margin-top:12px;font-size:15px}
.rate{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.rate .btn{padding:12px 6px;font-size:14px}
.rate .no{border-color:var(--bad);color:var(--bad)}
.rate .mid{border-color:var(--warn);color:var(--warn)}
.rate .yes{border-color:var(--ok);color:var(--ok)}
.boxes{display:flex;gap:4px}
.boxes div{flex:1;text-align:center;font-size:12px;background:var(--surface-2);border-radius:6px;padding:4px 0}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;text-align:center}
.stats div b{display:block;font-size:20px}
.stats div span{font-size:12px;color:var(--muted)}
/* translator */
.word{border:1px solid var(--border);border-radius:12px;padding:10px 12px;background:var(--surface)}
.word .w{font-weight:650;font-size:17px}
.word .meta{font-size:13px;color:var(--muted)}
.word .verb{font-size:13px;margin-top:4px;background:var(--surface-2);border-radius:8px;padding:4px 8px;display:inline-block}
.trans-out{font-size:19px}
/* modal */
.modal-bg{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:20;display:none;align-items:flex-end;justify-content:center;overscroll-behavior:contain}
.modal-bg.open{display:flex}
.modal{background:var(--bg);width:100%;max-width:680px;max-height:calc(100dvh - var(--sat) - 24px);overflow:auto;-webkit-overflow-scrolling:touch;overscroll-behavior:contain;border-radius:20px 20px 0 0;padding:18px calc(16px + var(--sar)) calc(18px + var(--sab)) calc(16px + var(--sal))}
@media (min-width:700px){.modal-bg{align-items:center}.modal{border-radius:18px}}
.toast{position:fixed;left:50%;bottom:calc(var(--nav-h) + var(--sab) + 16px);transform:translateX(-50%);background:var(--text);color:var(--bg);padding:9px 14px;border-radius:10px;font-size:14px;z-index:30;opacity:0;transition:opacity .2s;pointer-events:none;max-width:90vw}
.toast.show{opacity:1}
.hidden{display:none!important}
details summary{cursor:pointer;color:var(--muted);font-size:14px}
hr{border:0;border-top:1px solid var(--border);margin:14px 0}
/* language switch */
.lang-option{display:flex;align-items:center;gap:12px;width:100%;text-align:left;border:1px solid var(--border);background:var(--surface);border-radius:12px;padding:12px}
.lang-option.active{border-color:var(--accent);background:var(--accent-soft)}
.lang-option .flag{font-size:28px}
/* login */
.login-bg{background:var(--bg)}
.login-box{max-width:380px;border-radius:18px;margin:auto}
/* utilities (statt Inline-Styles, wegen Content-Security-Policy) */
.mb-12{margin-bottom:12px}
.mb-10{margin-bottom:10px}
.mb-6{margin-bottom:6px}
.mt-4{margin-top:4px}
.mt-6{margin-top:6px}
.mt-8{margin-top:8px}
.mt-14{margin-top:14px}
.m-0{margin:0}
.center{text-align:center}
.justify-center{justify-content:center}
.gap-16{gap:16px}
.w-110{width:110px}
.w-auto{width:auto}
.fw-normal{font-weight:400}
.big-emoji{font-size:42px}
.ml-4{margin-left:4px}
.voice-warn{margin-top:6px}
.invisible{visibility:hidden}
input[type=range]{width:100%}

/* ================= iPhone / Safari ================= */
button{touch-action:manipulation}
/* Größere Touch-Ziele auf Touch-Geräten (Apple empfiehlt mind. 44 pt) */
@media (pointer:coarse){
  .btn{min-height:44px;padding:10px 16px}
  .btn.sm{min-height:40px;padding:8px 12px;font-size:15px}
  .chip{min-height:40px;padding:9px 15px;font-size:15px}
  .mini{min-width:40px;min-height:36px;padding:6px 10px;font-size:15px;border-radius:10px}
  nav.tabs button{font-size:11px}
  nav.tabs button .ico{font-size:24px}
  .scen{padding:14px}
  .rate .btn{min-height:56px;font-size:15px}
  .list li{padding:10px 0}
}
/* Große iPhones (Pro Max: 430–440 pt breit) */
@media (min-width:414px) and (max-width:699px){
  .msg{max-width:84%}
  .msg .es{font-size:18px}
  .mic{width:92px;height:92px;font-size:38px}
  .flash{height:300px}
  .face .big{font-size:32px}
  .grid2{grid-template-columns:1fr 1fr}
}
/* Tastatur offen: Tab-Leiste ausblenden, Eingabe direkt über der Tastatur */
body.kb-open nav.tabs{display:none}
body.kb-open .composer{bottom:0;padding-bottom:6px}
body.kb-open main{padding-bottom:16px}
body.kb-open .mic-wrap{display:none}
/* Hintergrund nicht mitscrollen, solange ein Dialog offen ist */
html.modal-open,html.modal-open body{overflow:hidden}
/* Querformat: Tab-Leiste flacher */
@media (orientation:landscape) and (max-height:500px){
  :root{--nav-h:52px}
  nav.tabs button{flex-direction:row;gap:6px}
  .mic{width:64px;height:64px;font-size:28px}
  .flash{height:200px}
}

a{color:var(--accent)}