:root{
  --navy:#1d3557; --blue:#457b9d; --sky:#a8dadc; --cream:#f1faee; --red:#e63946;
  --gold:#ffb703; --green:#2a9d8f; --ink:#21303b; --card:#ffffff;
  --shadow:0 6px 18px rgba(29,53,87,.12);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
.btn-word{font:inherit;color:var(--navy);background:var(--cream);border:1px solid var(--sky);
  border-radius:10px;padding:.15rem .55rem;cursor:pointer}
.btn-word:active{background:var(--sky)}
html,body{margin:0;height:100%}
body{
  font-family:"Segoe UI",system-ui,-apple-system,sans-serif;
  background:linear-gradient(180deg,#eef6f7,#f1faee);
  color:var(--ink);display:flex;flex-direction:column;height:100dvh;overflow:hidden;
}
.topbar{
  display:flex;align-items:center;gap:.6rem;padding:.55rem .9rem;
  background:var(--navy);color:#fff;box-shadow:var(--shadow);
  padding-top:calc(.55rem + env(safe-area-inset-top));
}
.brand{font-family:"Palatino Linotype",Georgia,serif;font-size:1.15rem;font-weight:700;
  background:none;border:none;color:var(--gold);cursor:pointer;letter-spacing:.3px;
  white-space:nowrap;flex:none}
.chapter-title{flex:1;font-size:.95rem;opacity:.9;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.app-version{font-family:system-ui,sans-serif;font-size:.6rem;font-weight:700;color:#fff;
  background:rgba(255,255,255,.2);border-radius:999px;padding:.1rem .4rem;margin-left:.4rem;vertical-align:middle}
.streak{background:rgba(255,255,255,.15);padding:.25rem .6rem;border-radius:999px;font-weight:700;font-size:.95rem;
  border:none;color:#fff;cursor:pointer;font-family:inherit}
.xp-info{position:fixed;top:3rem;right:.6rem;z-index:50;max-width:min(260px,80vw);
  background:#1d3557;color:#fff;padding:.6rem .8rem;border-radius:.6rem;font-size:.85rem;line-height:1.3;
  box-shadow:0 4px 14px rgba(0,0,0,.25)}
.xp-info.hidden{display:none}
.xp-tap{cursor:pointer}
.pron-btn{background:rgba(255,255,255,.15);color:#fff;border:none;border-radius:999px;
  padding:.25rem .6rem;font-size:.8rem;font-weight:700;cursor:pointer;white-space:nowrap}
.pron-btn:active{transform:translateY(1px)}

.view{flex:1;overflow-y:auto;padding:1rem;padding-bottom:5.5rem;-webkit-overflow-scrolling:touch}

.tabbar{
  position:fixed;left:0;right:0;bottom:0;display:flex;background:#fff;
  box-shadow:0 -4px 16px rgba(29,53,87,.12);padding-bottom:env(safe-area-inset-bottom);
}
.tab{flex:1;border:none;background:none;padding:.5rem 0 .65rem;font-size:1.4rem;color:#9bb0bd;
  display:flex;flex-direction:column;align-items:center;gap:.15rem;cursor:pointer;position:relative;
  border-top:3px solid transparent;transition:background .15s}
.tab span{font-size:.7rem;font-weight:600}
/* Emoji ignore CSS `color`, so colour alone can't show the active tab — use a pill
   + top accent bar + bolder label so it's unmistakable which section you're in. */
.tab.active{color:var(--blue);border-top-color:var(--gold);background:#fff6dd}
.tab.active span{color:var(--navy);font-weight:800}
.tab.active::after{content:"";position:absolute;bottom:.28rem;width:5px;height:5px;
  border-radius:50%;background:var(--gold)}

/* Cards / generic */
.card{background:var(--card);border-radius:18px;box-shadow:var(--shadow);padding:1.1rem 1.2rem;margin:0 auto 1rem;max-width:680px}
.greek{font-family:"Palatino Linotype","GFS Didot",Georgia,serif}
h2.kefalaion{font-family:"Palatino Linotype",Georgia,serif;color:var(--navy);margin:.2rem 0 .1rem;font-size:1.5rem}
.subtitle{color:var(--blue);font-weight:600;margin:0 0 .8rem}
.blurb{background:var(--sky);border-radius:14px;padding:.7rem .9rem;color:#264653;font-size:.95rem;line-height:1.5}

/* Reader */
.reading-part{font-weight:700;color:var(--gold);font-size:1.1rem;margin:.4rem 0}
.reading p{font-size:1.32rem;line-height:1.95;margin:.4rem 0;letter-spacing:.2px}
.w{cursor:pointer;border-radius:6px;padding:0 1px;transition:background .12s}
.w:hover{background:#fff3cd}
.w.tapped{background:var(--gold);color:#3a2c00}
.w.now{background:#ffb703;color:#1d3557}
.hint-tip{font-size:.85rem;color:var(--blue);margin-top:.4rem}
.para-row{display:flex;align-items:flex-start;gap:.5rem}
.say{flex:none;border:none;background:var(--sky);color:#1d3557;border-radius:50%;width:38px;height:38px;
  font-size:1.1rem;cursor:pointer;margin-top:.55rem;box-shadow:var(--shadow);transition:transform .1s,background .15s}
.say:active{transform:scale(.9)}
.say.playing{background:var(--gold);animation:pulse .9s}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(255,183,3,.6)}100%{box-shadow:0 0 0 14px rgba(255,183,3,0)}}
.big-say{width:54px;height:54px;font-size:1.6rem;background:var(--gold);margin-top:1rem}
.sent{border-radius:8px;padding:.05em .1em;transition:background .2s}
.sent.now{background:#fff3c4;box-shadow:0 0 0 3px #ffe08a}
/* Single-sentence view: a roomy stage that vertically centres the line, but the
   text itself flows/wraps normally so spaces show and long Greek never overflows. */
.sent-stage{min-height:20vh;display:flex;align-items:center;justify-content:center;padding:.4rem .2rem}
.sent.solo{font-size:1.7rem;line-height:2.05;text-align:center;max-width:100%;word-spacing:.12em}
.sent.solo.now{background:none;box-shadow:none} /* no giant box — the per-word gold is the cue */
.sent-say{width:26px;height:26px;font-size:.8rem;margin:0 .25em 0 0;vertical-align:middle;background:var(--sky)}
.para-say{width:26px;height:26px;font-size:.8rem;margin:0 .3em 0 0;vertical-align:middle;background:var(--sky)}
.para{border-radius:10px;padding:.15em .35em;transition:background .2s}
.para.now{background:#eef7ff;box-shadow:0 0 0 3px #bcdcff}
.para.now .sent.now{background:#fff3c4}

/* Popup */
.popup{position:fixed;left:50%;bottom:5.2rem;transform:translateX(-50%);
  background:var(--navy);color:#fff;border-radius:14px;padding:.7rem 1rem;box-shadow:var(--shadow);
  z-index:30;max-width:88vw;text-align:center;transition:opacity .15s;
  display:flex;align-items:center;gap:.7rem}
.popup.hidden{opacity:0;pointer-events:none}
.popup-text{text-align:left}
.popup-word{font-family:"Palatino Linotype",Georgia,serif;font-size:1.3rem;color:var(--gold)}
.popup-gloss{font-size:1rem;margin-top:.15rem}
.popup-add{flex:none;border:none;border-radius:999px;padding:.45rem .7rem;font-weight:700;
  font-size:.85rem;cursor:pointer;background:var(--gold);color:#3a2c00;white-space:nowrap}
.popup-add.saved{background:#6bbf59;color:#fff}
.popup-add:active{transform:translateY(1px)}

/* My Words (personal deck + spaced-repetition review) */
.grade-row .btn{font-size:.95rem}
.grade-again{background:#e07a5f}
.grade-good{background:var(--blue)}
.grade-easy{background:#6bbf59}
.myadd .mw-in{display:block;width:100%;box-sizing:border-box;margin:0 0 .5rem;padding:.6rem .7rem;
  font-size:1.05rem;border:2px solid var(--sky);border-radius:10px;background:var(--cream)}
.myadd .btn{width:100%}
.mw-row{display:flex;align-items:center;gap:.5rem;padding:.4rem 0;border-bottom:1px solid #eef1f2}
.mw-row:last-of-type{border-bottom:none}
.mw-say{flex:none;border:none;background:var(--sky);color:#1d3557;border-radius:50%;
  width:30px;height:30px;font-size:.85rem;cursor:pointer}
.mw-w{font-size:1.15rem;color:var(--navy)}
.mw-en{flex:1;color:#516;font-size:.95rem;color:var(--blue)}
.mw-box{flex:none;font-size:.75rem;font-weight:700;color:#fff;background:var(--gold);
  border-radius:999px;padding:.1rem .45rem}
.mw-del{flex:none;border:none;background:none;color:#c44;font-size:1rem;cursor:pointer;padding:.2rem .3rem}
.back-btn{margin:.2rem 0 .6rem}

/* Buttons */
.btn{display:inline-block;border:none;border-radius:999px;padding:.7rem 1.3rem;font-size:1rem;
  font-weight:700;cursor:pointer;background:var(--blue);color:#fff;box-shadow:var(--shadow)}
.btn.alt{background:#fff;color:var(--navy);border:2px solid var(--sky)}
.btn.big{display:block;width:100%;max-width:680px;margin:.5rem auto;font-size:1.15rem;padding:.9rem}
.btn:active{transform:translateY(1px)}

/* Practice */
.q-text{font-size:1.5rem;font-family:"Palatino Linotype",Georgia,serif;color:var(--navy);margin:.2rem 0 1rem;line-height:1.6}
.options{display:flex;flex-direction:column;gap:.6rem}
.opt{font-size:1.3rem;text-align:center;padding:.8rem;border-radius:14px;border:2px solid var(--sky);
  background:#fff;cursor:pointer;font-family:"Palatino Linotype",Georgia,serif}
.opt.correct{background:var(--green);color:#fff;border-color:var(--green)}
.opt.wrong{background:var(--red);color:#fff;border-color:var(--red)}
.opt.disabled{pointer-events:none;opacity:.85}
.progress{height:10px;background:#dfeef0;border-radius:999px;overflow:hidden;margin-bottom:1rem;max-width:680px}
.progress>div{height:100%;background:var(--gold);width:0;transition:width .3s}
.feedback{font-size:1.1rem;font-weight:700;margin-top:.9rem;min-height:1.4rem}
.feedback.ok{color:var(--green)} .feedback.no{color:var(--red)}

/* Match */
.match-grid{display:grid;grid-template-columns:1fr 1fr;gap:.6rem;margin-top:.5rem}
.chip{padding:.7rem;border-radius:12px;border:2px solid var(--sky);background:#fff;text-align:center;
  font-size:1.2rem;cursor:pointer;font-family:"Palatino Linotype",Georgia,serif}
.chip.sel{background:var(--gold);border-color:var(--gold)}
.chip.done{background:var(--green);color:#fff;border-color:var(--green);pointer-events:none}

/* Flashcards */
.flash{height:46vh;max-width:680px;margin:1rem auto;perspective:1200px}
.flash-inner{position:relative;width:100%;height:100%;transition:transform .5s;transform-style:preserve-3d;cursor:pointer}
.flash-inner.flip{transform:rotateY(180deg)}
.flash-face{position:absolute;inset:0;backface-visibility:hidden;border-radius:22px;box-shadow:var(--shadow);
  display:flex;flex-direction:column;align-items:center;justify-content:center;padding:1rem;text-align:center}
.flash-front{background:#fff}
.flash-back{background:var(--navy);color:#fff;transform:rotateY(180deg)}
.flash-gr{font-family:"Palatino Linotype",Georgia,serif;font-size:2.4rem;color:var(--navy)}
.flash-back .flash-gr{color:var(--gold)}
.flash-en{font-size:1.6rem;margin-top:.3rem}
.flash-note{font-size:.95rem;color:var(--blue);margin-top:.5rem}
.flash-back .flash-note{color:var(--sky)}
.flash-hint{text-align:center;color:var(--blue);font-size:.9rem}
.row{display:flex;gap:.6rem;max-width:680px;margin:.5rem auto}
.row .btn{flex:1}

/* Home */
.hero{text-align:center;padding:1rem}
.hero .big-greek{font-family:"Palatino Linotype",Georgia,serif;font-size:3rem;color:var(--navy)}
.chapter-card{display:flex;align-items:center;gap:.9rem;text-align:left;cursor:pointer}
.chapter-card .num{background:var(--gold);color:#3a2c00;font-weight:800;border-radius:14px;
  min-width:48px;height:48px;display:flex;align-items:center;justify-content:center;font-size:1.3rem}
.locked{opacity:.5}
.small{font-size:.85rem;color:var(--blue)}
.center{text-align:center}
ul{margin:.4rem 0 .2rem 1.1rem;padding:0}
li{margin:.25rem 0;line-height:1.5}
.tag{display:inline-block;background:var(--sky);color:#264653;border-radius:999px;padding:.1rem .6rem;font-size:.8rem;font-weight:700;margin-left:.4rem}

/* Alphabet */
.abc-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:.4rem;max-width:680px;margin:.5rem auto}
.letter{background:#fff;border:2px solid var(--sky);border-radius:14px;padding:.5rem .1rem;cursor:pointer;
  box-shadow:var(--shadow);transition:transform .1s,background .15s}
.letter:active{transform:scale(.95)}
.letter.now{background:var(--gold);border-color:var(--gold)}
.letter-glyph{font-family:"Palatino Linotype",Georgia,serif;font-size:1.5rem;color:var(--navy);line-height:1.1}
.letter-name{font-family:"Palatino Linotype",Georgia,serif;font-size:.62rem;color:var(--blue);line-height:1.1}
.letter-big{font-family:"Palatino Linotype",Georgia,serif;font-size:4rem;color:var(--navy);line-height:1}
.options-grid{grid-template-columns:repeat(2,1fr)}
.big-opt .letter-glyph{font-size:2.6rem}
.big-opt.ok{background:var(--green);border-color:var(--green)}
.big-opt.ok .letter-glyph{color:#fff}
.big-opt.bad{background:var(--red);border-color:var(--red)}
.big-opt.bad .letter-glyph{color:#fff}
.big-opt.disabled{pointer-events:none}

/* Segmented view toggle */
.seg{display:flex;gap:.4rem;margin-top:.8rem;background:#e7f1f2;border-radius:999px;padding:.25rem}
.seg-btn{flex:1;border:none;background:none;border-radius:999px;padding:.5rem;font-weight:700;
  font-size:.9rem;color:var(--blue);cursor:pointer}
.seg-btn.on{background:#fff;color:var(--navy);box-shadow:var(--shadow)}
.sentence-card .row{margin-top:1rem}

/* Tracing pad */
.trace-wrap{position:relative;max-width:340px;margin:.4rem auto;aspect-ratio:1;
  border:3px dashed var(--sky);border-radius:18px;background:#fff;overflow:hidden}
.trace-wrap canvas{width:100%;height:100%;display:block;cursor:crosshair;touch-action:none}
.trace-pair{display:flex;gap:.6rem;justify-content:center;flex-wrap:wrap;margin:.4rem 0}
.trace-col{flex:1 1 230px;max-width:300px}
.trace-col .trace-wrap{max-width:none}
.nav{font-size:1.3rem;padding:.5rem .9rem;flex:none}

/* Home hero — laurel emblem + wordmark */
.emblem{display:block;width:190px;max-width:70%;height:auto;margin:.2rem auto 0}
.wordmark{font-family:"Palatino Linotype",Georgia,serif;font-size:2.1rem;font-weight:700;
  color:var(--navy);letter-spacing:.5px;margin:.1rem 0 .1rem}
.tagline{color:var(--blue);font-weight:600;font-size:.95rem;margin:.1rem auto .3rem;max-width:22rem}

/* Language switch */
.lang-switch{display:flex;gap:.7rem;max-width:680px;margin:0 auto 1rem}
.lang-btn{flex:1;display:flex;flex-direction:column;align-items:center;gap:.15rem;
  background:#fff;border:2px solid var(--sky);border-radius:16px;padding:.7rem .4rem;cursor:pointer;
  box-shadow:var(--shadow);transition:transform .1s,border-color .15s,background .15s}
.lang-btn:active{transform:translateY(1px)}
.lang-btn.on{border-color:var(--gold);background:#fffaf0}
.lang-emoji{font-size:1.6rem;line-height:1}
.lang-name{font-weight:800;color:var(--navy);font-size:1.05rem}
.lang-native{color:var(--blue);font-size:.95rem}
.lang-btn.on .lang-name{color:var(--navy)}

/* "Start here" letters card */
.start-card{background:linear-gradient(135deg,var(--blue),var(--navy));color:#fff}
.start-num{background:#fff;font-size:1.5rem}

/* Etymology / Roots */
.etym-head{display:flex;align-items:baseline;flex-wrap:wrap;gap:.5rem;margin-bottom:.5rem}
.etym-word{font-family:"Palatino Linotype",Georgia,serif;font-size:1.7rem;color:var(--navy);
  background:var(--cream);border:1px solid var(--sky);border-radius:10px;padding:.1rem .55rem;cursor:pointer}
.etym-word:active{background:var(--sky)}
.etym-gloss{color:var(--blue);font-size:.95rem}
.etym-say{color:#7a94a3;font-style:italic}
.etym-line{margin:.4rem 0;line-height:1.9}
.etym-lbl{font-weight:700;color:var(--navy);font-size:.8rem;text-transform:uppercase;letter-spacing:.4px;margin-right:.3rem}
.etym-cousin{background:#f4f9fa;border-radius:12px;padding:.4rem .6rem}
.etym-cousin.warn{background:#fdf1f1;border:1px dashed #e0a3a3}
.etym-cnote{font-size:.82rem;color:#6a5252;margin-top:.25rem;line-height:1.5;font-style:italic}
.etym-cw{font-size:1.15rem;color:var(--navy)}
.root-chip{display:inline-block;background:var(--sky);color:#22414d;border-radius:999px;
  padding:.12rem .6rem;font-size:.92rem;font-weight:600;margin:.12rem .18rem}
.root-chip.alt{background:#e7ddc6;color:#5b4a24}
.root-chip.live{background:#e6f2e0;color:#3c5a2b}
.root-chip.kin{background:#efe4f4;color:#523a5e}
.etym-morph{font-size:.85rem;color:#6b7f8a;font-style:italic;margin:-.2rem 0 .5rem;
  font-family:"Palatino Linotype",Georgia,serif}
.tswitch-row{display:flex;flex-wrap:wrap;justify-content:center;gap:.5rem;margin-top:.7rem}
.tswitch{margin:0;font-size:.92rem;padding:.4rem .9rem}
.tswitch.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.trans{color:#3f6b52;font-style:italic;font-size:.98rem;line-height:1.5;
  margin:.2rem 0 .9rem;padding-left:.75rem;border-left:3px solid #bcd8c4}
.trans.center{text-align:center;border-left:none;padding:0;margin:.2rem auto .6rem;max-width:34rem}
.trans-note{color:#8a97a0;font-style:italic;font-size:.9rem;text-align:center;margin:.5rem 0}
.chapter-flow p{margin:.55rem 0;line-height:2}
/* Glossary (cross-language lexicon) */
.gloss-btn .lang-native{color:#7a6a92}
.lex-filters{display:flex;gap:.4rem;flex-wrap:wrap;margin:.6rem 0 .55rem}
.chip-btn{background:var(--cream);border:1px solid var(--sky);color:var(--navy);border-radius:999px;
  padding:.3rem .8rem;font-size:.9rem;font-weight:600;cursor:pointer}
.chip-btn.on{background:var(--navy);color:#fff;border-color:var(--navy)}
.gloss-search{width:100%;box-sizing:border-box;padding:.6rem .8rem;font-size:1rem;
  border:1px solid var(--sky);border-radius:12px;margin-top:.1rem}
.lex-top{display:flex;align-items:baseline;flex-wrap:wrap;gap:.5rem;margin-bottom:.5rem}
.lex-word{font-family:"Palatino Linotype",Georgia,serif;font-size:1.5rem;color:var(--navy);
  background:var(--cream);border:1px solid var(--sky);border-radius:10px;padding:.05rem .5rem;cursor:pointer}
.lex-word:active{background:var(--sky)}
.lex-gloss{color:var(--blue);font-size:.95rem}
.lex-tag{margin-left:auto;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.4px;
  padding:.15rem .55rem;border-radius:999px}
.lex-tag.greek{background:#e7eef7;color:#274b73}
.lex-tag.latin{background:#f3e9df;color:#6b4a24}
.lex-chain{display:flex;flex-wrap:wrap;align-items:stretch;gap:.35rem}
.lex-stage{display:inline-flex;flex-direction:column;justify-content:center;gap:.15rem;
  background:#f6fafb;border-radius:10px;padding:.32rem .55rem;font-size:.95rem}
.lex-stage.pie{background:#efeaf5}
.lex-stage.live{background:#e9f3e3}
.lex-stage.eng{background:#eaf4f6}
.lex-slbl{font-size:.6rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:#8a97a0}
.lex-arrow{align-self:center;color:#b7c4cc;font-weight:700;font-size:1.1rem}
.lex-kin{margin-top:.5rem;font-size:.92rem;color:#523a5e;background:#f4eef8;border-radius:8px;padding:.35rem .6rem}
.lex-cousin{margin-top:.4rem;font-size:.92rem;color:#22414d;background:#f4f9fa;border-radius:8px;padding:.35rem .6rem}
.lex-cousin.warn{background:#fdf1f1;border:1px dashed #e0a3a3;color:#6a3b3b}
.lex-cnote{font-style:italic;color:#7a5a5a}
.card.lex{cursor:pointer}
.card.lex:not(.open) .lex-top{margin-bottom:0}
.lex-caret{color:#8a97a0;font-size:.8rem;flex:none}
.lex-random{white-space:nowrap}
.etym-fun{margin-top:.6rem;background:#fff7e6;border-left:4px solid var(--gold);
  border-radius:8px;padding:.5rem .7rem;font-size:.95rem;line-height:1.55;color:#5b4a24}