[hidden] { display: none !important; }
:root {
  --red: #e63946; --red-d: #c1121f; --yellow: #ffb703; --yellow-l: #fff3c4;
  --teal: #2a9d8f; --teal-l: #d8f3ef; --ink: #1d2433; --muted: #667085;
  --bg: #fffaf2; --card: #ffffff; --line: #eee3d3; --ok: #2f9e44; --ok-l: #e3f7e8;
  --bad: #e03131; --bad-l: #ffe8e8; --purple: #7048e8; --purple-l: #efe9ff;
  --r: 18px; --shadow: 0 2px 0 rgba(0,0,0,.04), 0 6px 18px rgba(80,50,0,.07);
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font-family: 'Rubik', system-ui, -apple-system, 'Segoe UI', Arial, sans-serif;
  background: var(--bg); color: var(--ink); font-size: 17px; line-height: 1.55;
  min-height: 100vh; display: flex; flex-direction: column;
}
[lang="es"], .es { direction: ltr; unicode-bidi: isolate; }
a { color: var(--teal); }
button { font-family: inherit; font-size: inherit; cursor: pointer; }
h1, h2, h3 { line-height: 1.25; margin: 0 0 .5em; }
h1 { font-size: 1.8rem; font-weight: 800; }
h2 { font-size: 1.35rem; font-weight: 700; }
h3 { font-size: 1.1rem; font-weight: 700; }
main { flex: 1; width: 100%; max-width: 980px; margin: 0 auto; padding: 18px 16px 40px; }

/* top bar */
.topbar {
  position: sticky; top: 0; z-index: 10; background: #fff; border-bottom: 3px solid var(--yellow);
  display: flex; align-items: center; gap: 12px; padding: 8px 16px; flex-wrap: wrap;
}
.brand { font-weight: 800; font-size: 1.3rem; color: var(--red); text-decoration: none; }
.mainnav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.mainnav a {
  text-decoration: none; color: var(--ink); padding: 7px 12px; border-radius: 999px; font-weight: 500; font-size: .95rem;
}
.mainnav a:hover { background: var(--yellow-l); }
.mainnav a.on { background: var(--red); color: #fff; }
.userbox { font-size: .9rem; color: var(--muted); }
.linkbtn { background: none; border: 0; color: var(--teal); text-decoration: underline; padding: 0 4px; }
@media (max-width: 720px) {
  .topbar { padding-bottom: 0; }
  .mainnav { order: 3; flex-basis: 100%; overflow-x: auto; flex-wrap: nowrap; padding-bottom: 6px; }
  .mainnav a { white-space: nowrap; padding: 6px 10px; }
  .brand { flex: 1; }
}
.foot { text-align: center; color: var(--muted); font-size: .85rem; padding: 18px; }
.foot a { color: var(--muted); }

/* cards & buttons */
.card { background: var(--card); border-radius: var(--r); box-shadow: var(--shadow); padding: 20px; margin-bottom: 16px; border: 1px solid var(--line); }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 0; border-radius: 14px; padding: 12px 22px; font-weight: 700; text-decoration: none;
  background: var(--red); color: #fff; box-shadow: 0 4px 0 var(--red-d); transition: transform .08s;
}
.btn:active { transform: translateY(3px); box-shadow: 0 1px 0 var(--red-d); }
.btn.big { font-size: 1.15rem; padding: 15px 28px; }
.btn.alt { background: var(--teal); box-shadow: 0 4px 0 #1f776c; }
.btn.ghost { background: #fff; color: var(--ink); border: 2px solid var(--line); box-shadow: 0 3px 0 var(--line); }
.btn[disabled] { opacity: .45; pointer-events: none; }
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.between { justify-content: space-between; }
.muted { color: var(--muted); }
.small { font-size: .88rem; }
.center { text-align: center; }
.pill { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: .82rem; font-weight: 700; background: var(--yellow-l); color: #8a5a00; }
.pill.ok { background: var(--ok-l); color: var(--ok); }
.pill.bad { background: var(--bad-l); color: var(--bad); }
.pill.purple { background: var(--purple-l); color: var(--purple); }
.grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); }

/* login */
.login { max-width: 460px; margin: 40px auto; text-align: center; }
.login .hero { font-size: 4rem; }
.login input {
  width: 100%; font: inherit; padding: 14px 16px; border-radius: 14px; border: 2px solid var(--line); margin: 8px 0 14px; text-align: right;
}
.login input[type=email] { direction: ltr; text-align: left; }
.login input:focus { outline: 3px solid var(--yellow); border-color: var(--yellow); }
.err { color: var(--bad); font-weight: 500; min-height: 1.5em; }

/* home */
.hello { background: linear-gradient(135deg, #ffefd0, #ffe0e3); border: 0; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; margin-top: 14px; }
.stat { background: #fff; border-radius: 14px; padding: 12px; text-align: center; }
.stat b { display: block; font-size: 1.7rem; font-weight: 800; color: var(--red); }
.bar { height: 14px; background: #f1e7d6; border-radius: 999px; overflow: hidden; }
.bar > i { display: block; height: 100%; background: linear-gradient(90deg, var(--yellow), var(--red)); border-radius: 999px; transition: width .4s; }
.tracker { display: grid; grid-template-columns: repeat(auto-fill, minmax(78px, 1fr)); gap: 8px; }
.day {
  border-radius: 14px; padding: 8px 4px; text-align: center; background: #fff; border: 2px dashed var(--line);
  text-decoration: none; color: var(--muted); font-size: .8rem; min-height: 84px; display: flex; flex-direction: column; justify-content: center;
}
.day .n { font-weight: 800; font-size: 1.2rem; color: var(--ink); }
.day .e { font-size: 1.3rem; }
.day.done { background: var(--ok-l); border: 2px solid #b2e5c0; color: var(--ok); }
.day.next { background: var(--yellow-l); border: 2px solid var(--yellow); color: #8a5a00; animation: pulse 1.8s infinite; }
.day.locked { opacity: .55; }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 0 rgba(255,183,3,.5); } 50% { box-shadow: 0 0 0 6px rgba(255,183,3,0); } }

/* lesson list */
.lcard { display: flex; gap: 14px; align-items: center; text-decoration: none; color: inherit; }
.lcard .em { font-size: 2.2rem; width: 56px; height: 56px; display: grid; place-items: center; background: var(--yellow-l); border-radius: 16px; flex: none; }
.lcard.locked { opacity: .5; pointer-events: none; }
.lcard h3 { margin: 0 0 2px; font-size: 1rem; }

/* lesson player */
.steps { display: flex; gap: 6px; margin: 10px 0 18px; }
.steps span { flex: 1; height: 8px; border-radius: 99px; background: #eee3d3; }
.steps span.on { background: var(--red); }
.steps span.done { background: var(--yellow); }
.steplabel { font-weight: 700; color: var(--red); }
.vocab { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.word { display: flex; align-items: center; gap: 12px; background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 12px 14px; box-shadow: var(--shadow); }
.word .em { font-size: 2rem; flex: none; }
.word .txt { flex: 1; min-width: 0; }
.word .es { font-weight: 800; font-size: 1.15rem; color: var(--ink); text-align: right; display: block; }
.word .he { font-size: .95rem; }
.word .pr { font-size: .8rem; color: var(--muted); }
.say { border: 0; background: var(--teal-l); color: var(--teal); width: 44px; height: 44px; border-radius: 50%; font-size: 1.2rem; flex: none; }
.say.slow { width: 34px; height: 34px; font-size: .9rem; background: #f3efe7; }
.say:active, .say.playing { background: var(--teal); color: #fff; }
.gpoints { padding-inline-start: 1.1em; }
.gpoints li { margin-bottom: 8px; }
.gtable { width: 100%; border-collapse: separate; border-spacing: 0 6px; }
.gtable td { background: #fbf6ee; padding: 9px 12px; }
.gtable td:first-child { border-radius: 0 12px 12px 0; font-weight: 700; }
.gtable td:last-child { border-radius: 12px 0 0 12px; }
.gtable td.es { text-align: left; }
.tip { background: var(--purple-l); color: #3d2a8a; border-radius: 14px; padding: 12px 14px; margin-top: 12px; }
.dlg { display: flex; flex-direction: column; gap: 10px; }
.bubble { max-width: 85%; padding: 10px 14px; border-radius: 18px; background: #fff; border: 1px solid var(--line); display: flex; gap: 10px; align-items: center; }
.bubble.b { align-self: flex-end; background: var(--teal-l); border-color: #bfe7e0; }
.bubble .who { font-size: .78rem; color: var(--muted); font-weight: 700; }
.bubble .es { font-weight: 700; display: block; text-align: right; }
.navrow { display: flex; justify-content: space-between; gap: 12px; margin-top: 18px; }

/* matching */
.match { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.match .col { display: flex; flex-direction: column; gap: 8px; }
.mbtn { background: #fff; border: 2px solid var(--line); border-radius: 14px; padding: 12px; font-weight: 700; min-height: 52px; }
.mbtn.sel { border-color: var(--yellow); background: var(--yellow-l); }
.mbtn.ok { border-color: #b2e5c0; background: var(--ok-l); color: var(--ok); pointer-events: none; }
.mbtn.no { animation: shake .35s; border-color: var(--bad); }
@keyframes shake { 25% { transform: translateX(5px); } 50% { transform: translateX(-5px); } 75% { transform: translateX(3px); } }

/* quiz */
.qhead { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 8px; }
.qtext { font-size: 1.3rem; font-weight: 700; margin: 6px 0 14px; }
.opts { display: grid; gap: 10px; }
.opt {
  text-align: right; background: #fff; border: 2px solid var(--line); border-radius: 16px; padding: 14px 16px; font-weight: 500; font-size: 1.05rem;
  box-shadow: 0 3px 0 var(--line); transition: transform .06s;
}
.opt:hover { border-color: var(--yellow); }
.opt.right { background: var(--ok-l); border-color: var(--ok); color: #1b6b2e; box-shadow: 0 3px 0 #9fd8ad; }
.opt.wrong { background: var(--bad-l); border-color: var(--bad); color: #a51d1d; box-shadow: 0 3px 0 #f2b0b0; }
.opt[disabled] { cursor: default; }
.feedback { margin-top: 14px; border-radius: 16px; padding: 14px 16px; font-weight: 500; }
.feedback.ok { background: var(--ok-l); color: #1b6b2e; }
.feedback.bad { background: var(--bad-l); color: #a51d1d; }
.feedback b { font-size: 1.1rem; display: block; margin-bottom: 4px; }
.bigsay { width: 70px; height: 70px; font-size: 2rem; margin: 6px auto 10px; display: block; }
.score { font-size: 3.2rem; font-weight: 800; color: var(--red); }
.stars { font-size: 2.4rem; letter-spacing: 4px; }
.review { border-inline-start: 4px solid var(--bad); padding: 8px 12px; margin: 10px 0; background: #fff; border-radius: 8px; }

/* flashcards */
.flip { perspective: 1000px; max-width: 420px; margin: 0 auto; height: 260px; cursor: pointer; }
.flip .in { position: relative; width: 100%; height: 100%; transition: transform .5s; transform-style: preserve-3d; }
.flip.on .in { transform: rotateY(180deg); }
.flip .face {
  position: absolute; inset: 0; backface-visibility: hidden; border-radius: 22px; display: flex; flex-direction: column; align-items: center; justify-content: center;
  background: #fff; border: 3px solid var(--yellow); box-shadow: var(--shadow); padding: 20px; text-align: center;
}
.flip .back { transform: rotateY(180deg); background: var(--teal-l); border-color: var(--teal); }
.flip .face .em { font-size: 3rem; }
.flip .face .w { font-size: 1.9rem; font-weight: 800; }

/* badges */
.badge { text-align: center; }
.badge .ic { font-size: 3rem; filter: grayscale(1); opacity: .35; }
.badge.got .ic { filter: none; opacity: 1; }
.badge.got { border-color: var(--yellow); background: linear-gradient(180deg, #fff, var(--yellow-l)); }

/* tables */
.tbl { width: 100%; border-collapse: collapse; font-size: .92rem; }
.tbl th, .tbl td { padding: 9px 8px; border-bottom: 1px solid var(--line); text-align: right; vertical-align: top; }
.tbl th { color: var(--muted); font-weight: 500; }
.scroll { overflow-x: auto; }

.search { width: 100%; font: inherit; padding: 12px 16px; border-radius: 14px; border: 2px solid var(--line); margin-bottom: 14px; }

.toast {
  position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%); background: var(--ink); color: #fff;
  padding: 12px 20px; border-radius: 14px; z-index: 50; box-shadow: 0 10px 30px rgba(0,0,0,.25); max-width: 90vw; text-align: center;
}

/* certificate */
.cert { text-align: center; border: 10px double var(--yellow); background: #fffdf6; padding: 40px 24px; border-radius: 10px; }
.cert .name { font-size: 2.4rem; font-weight: 800; color: var(--red); margin: 10px 0; }
@media print {
  .topbar, .foot, .noprint { display: none !important; }
  body { background: #fff; }
}

.tabs { display: flex; background: #f3ece0; border-radius: 14px; padding: 4px; margin: 10px 0 16px; }
.tabs button { flex: 1; border: 0; background: none; padding: 10px; border-radius: 11px; font-weight: 700; color: var(--muted); }
.tabs button.on { background: #fff; color: var(--red); box-shadow: var(--shadow); }
.login label { display: block; text-align: right; }