/* Try Synsema — estilos.
   Dirección: "el estudio que automatiza negocios de barrio". Base carbón CÁLIDO
   (madera y luz de local a la noche), papelería comercial como firma visual
   (ticket térmico + sello de goma), 4 tonos por personaje/curso (estructurales).
   Oscuro por defecto; [data-theme=light] = la papelería de día. */

:root, :root[data-theme=dark] {
  --bg: #12100d; --bg2: #16130f; --panel: #1c1813; --panel2: #232019;
  --ink: #f1ece1; --muted: #a89f8f;
  --line: #2e2a22; --line2: #3d372c; --code-bg: #171410; --code-ink: #e9e2d3;
  --violet: #a291fa; --violet-soft: #262041; --rose: #f279b2; --rose-soft: #3a1c2d;
  --amber: #f2a33c; --amber-soft: #382a12; --teal: #38d3bd; --teal-soft: #11332e;
  --star: #f7c845; --gem: #6fe8d4; --ok: #4fd598; --bad: #f7796f;
  --accent: var(--violet); --accent-soft: var(--violet-soft);
  /* papelería (constante en ambos temas: el papel es papel) */
  --paper: #f4edda; --paper-2: #ece2c8; --paper-ink: #2b2416; --paper-muted: #7c7157;
  --paper-line: #d9cdae; --stamp: #c8452a;
  --radius: 14px; --shadow: 0 12px 34px rgba(8, 5, 0, .45);
  --font: "Instrument Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --display: "Bricolage Grotesque", var(--font);
  --mono: "JetBrains Mono", ui-monospace, "Cascadia Code", "Fira Code", Consolas, Menlo, monospace;
}
:root[data-theme=light] {
  --bg: #faf6ec; --bg2: #f3edde; --panel: #fffdf6; --panel2: #f5efe1;
  --ink: #241f15; --muted: #6d6452;
  --line: #e5dcc6; --line2: #d2c7ab; --code-bg: #f5efe1; --code-ink: #241f15;
  --violet: #6a55d0; --violet-soft: #ebe6ff; --rose: #cf3f85; --rose-soft: #ffe3f0;
  --amber: #b06f14; --amber-soft: #fdeed0; --teal: #0d9384; --teal-soft: #d5f5ee;
  --star: #d9a406; --gem: #0d9384; --ok: #148a52; --bad: #cc3a2f;
  --shadow: 0 10px 28px rgba(90, 70, 30, .14);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.6 var(--font); -webkit-font-smoothing: antialiased; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
h1, h2, h3 { line-height: 1.12; letter-spacing: -.015em; margin: 0 0 .5rem; }
h1, h2 { font-family: var(--display); font-weight: 750; }
h1 { font-size: clamp(1.7rem, 3.4vw, 2.6rem); }
h2 { font-size: 1.55rem; margin-top: 2.2rem; }
h3 { font-size: 1.1rem; font-weight: 700; }
p { margin: 0 0 .8rem; }
code, pre, kbd, textarea { font-family: var(--mono); }
code { font-size: .9em; background: var(--code-bg); border: 1px solid var(--line); border-radius: 6px; padding: .05em .35em; color: var(--code-ink); }
pre.code { background: var(--code-bg); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; overflow: auto; margin: 0 0 .8rem; font-size: 13.5px; line-height: 1.55; }
pre.code code { background: none; border: 0; padding: 0; }
pre.code.big { font-size: 15px; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.eyebrow { font-size: .74rem; letter-spacing: .14em; text-transform: uppercase; color: var(--accent); font-weight: 700; margin-bottom: .4rem; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 24px 22px 60px; }
.wrap.narrow { max-width: 480px; }
.wrap.narrow-md { max-width: 760px; }
.center { text-align: center; }
.lead { font-size: 1.15rem; color: var(--muted); }
.lead-sm { font-size: 1.05rem; }
.notice { background: var(--panel2); border: 1px solid var(--line); border-radius: 10px; padding: 10px 14px; font-size: .92rem; }
kbd { font-size: .7em; border: 1px solid var(--line2); border-radius: 4px; padding: 0 4px; margin-left: 4px; opacity: .75; }

/* tonos por personaje / curso */
.tone-violet { --accent: var(--violet); --accent-soft: var(--violet-soft); }
.tone-rose { --accent: var(--rose); --accent-soft: var(--rose-soft); }
.tone-amber { --accent: var(--amber); --accent-soft: var(--amber-soft); }
.tone-teal { --accent: var(--teal); --accent-soft: var(--teal-soft); }

/* botones */
.btn { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--line2); background: var(--panel2); color: var(--ink); border-radius: 10px; padding: 8px 14px; font: 600 .92rem var(--font); cursor: pointer; text-decoration: none !important; transition: transform .08s, background .12s, border-color .12s, box-shadow .12s; white-space: nowrap; }
.btn:hover { border-color: var(--accent); }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; box-shadow: 0 4px 14px color-mix(in srgb, var(--accent) 28%, transparent); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; }
.btn.small { padding: 5px 10px; font-size: .82rem; }
.btn.big { padding: 12px 22px; font-size: 1.02rem; border-radius: 12px; }
.btn[disabled] { opacity: .45; cursor: not-allowed; }
button.btn.primary.pulse { animation: pulse 1.2s ease-in-out infinite; }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 50%, transparent);} 50% { box-shadow: 0 0 0 8px transparent; } }

/* barra superior */
.top { display: flex; align-items: center; gap: 18px; padding: 0 22px; height: 58px; border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 86%, transparent); backdrop-filter: blur(10px); }
.brand { color: var(--ink); font-family: var(--display); font-weight: 700; font-size: 1.02rem; letter-spacing: -.01em; display: inline-flex; align-items: center; gap: 6px; }
.brand:hover { text-decoration: none; }
.brand-mark { color: var(--violet); font-size: 1.15rem; }
.top-nav { display: flex; gap: 14px; font-size: .9rem; }
.top-nav a { color: var(--muted); font-weight: 600; }
.top-nav a:hover { color: var(--ink); text-decoration: none; }
.top-right { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.theme-toggle { background: transparent; border: 1px solid var(--line); color: var(--ink); border-radius: 8px; width: 32px; height: 30px; cursor: pointer; }
.stat-chip { display: inline-flex; align-items: center; gap: 4px; font-size: .8rem; font-weight: 700; color: var(--ink); background: var(--panel2); border: 1px solid var(--line); border-radius: 999px; padding: 3px 10px; }
.stat-chip.gem { color: var(--gem); }
.stat-chip:hover { text-decoration: none; border-color: var(--accent); }
.user-chip { font-weight: 700; color: var(--ink); font-size: .9rem; }
@media (max-width: 760px) { .top-nav { display: none; } .user-chip { display: none; } }

/* pie */
.foot { border-top: 1px solid var(--line); margin-top: 40px; }
.foot-inner { max-width: 1180px; margin: 0 auto; padding: 18px 22px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: .82rem; color: var(--muted); }

/* toast */
.toast { position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%); background: var(--panel); border: 1px solid var(--line2); border-radius: 12px; padding: 10px 16px; box-shadow: var(--shadow); z-index: 50; font-size: .92rem; }

/* ─── sello de goma (firma, junto al ticket) ─── */
.stamp { display: inline-block; font-family: var(--display); font-weight: 800; font-size: 1rem; letter-spacing: .1em; text-transform: uppercase; color: var(--stamp); border: 3px solid var(--stamp); border-radius: 8px; padding: 4px 14px; transform: rotate(-8deg); opacity: .92; }

/* ─── home ─── */
.hero { display: grid; grid-template-columns: 1.12fr .88fr; gap: 44px; align-items: center; padding-top: 48px; padding-bottom: 20px; }
.hero h1 { font-size: clamp(2rem, 4.2vw, 3.3rem); font-weight: 800; }
.hl { color: var(--violet); }
.hero-cta { display: flex; gap: 12px; margin: 22px 0 10px; flex-wrap: wrap; }
.hero-meta { color: var(--muted); font-size: .85rem; }
@media (max-width: 860px) { .hero { grid-template-columns: 1fr; padding-top: 24px; } }

/* el ticket térmico: papel real en los dos temas */
.ticket-stage { position: relative; display: grid; justify-items: center; padding: 10px 6px 26px; }
.ticket { position: relative; width: min(340px, 100%); background: var(--paper); color: var(--paper-ink); font-family: var(--mono); font-size: 12.5px; line-height: 1.55; padding: 20px 18px 16px; border-left: 1px solid var(--paper-line); border-right: 1px solid var(--paper-line); transform: rotate(-1.2deg); box-shadow: var(--shadow); animation: print .7s ease-out both; }
.ticket::before, .ticket::after { content: ""; position: absolute; left: 0; right: 0; height: 10px;
  background: linear-gradient(-45deg, transparent 7px, var(--paper) 0) 0 0 / 14px 10px repeat-x,
              linear-gradient(45deg, transparent 7px, var(--paper) 0) 7px 0 / 14px 10px repeat-x; }
.ticket::before { top: -9px; transform: scaleY(-1); }
.ticket::after { bottom: -9px; }
.t-head { display: grid; justify-items: center; gap: 2px; text-align: center; border-bottom: 1px dashed var(--paper-line); padding-bottom: 10px; margin-bottom: 12px; }
.t-store { font-family: var(--display); font-weight: 800; font-size: 1.05rem; letter-spacing: .06em; }
.t-line { font-size: 10.5px; color: var(--paper-muted); }
.t-code { margin: 0; white-space: pre; overflow-x: auto; }
.t-code .k { color: #5c43c9; font-weight: 600; } .t-code .n { color: #9a5d0a; } .t-code .s { color: #0c6e5f; } .t-code .c { color: var(--paper-muted); font-style: italic; }
.t-sep { border-bottom: 1px dashed var(--paper-line); margin: 12px 0 10px; }
.t-label { display: block; font-size: 10px; letter-spacing: .16em; color: var(--paper-muted); }
.t-print { font-weight: 600; }
.t-total { display: flex; justify-content: space-between; margin-top: 10px; padding-top: 8px; border-top: 1px dashed var(--paper-line); font-weight: 600; }
.t-total .t-stars { color: #b8860b; letter-spacing: 2px; }
.t-total .t-gem { color: #0c6e5f; }
.t-barcode { height: 30px; margin: 12px 6px 6px; background: repeating-linear-gradient(90deg, var(--paper-ink) 0 2px, transparent 2px 4px, var(--paper-ink) 4px 7px, transparent 7px 9px, var(--paper-ink) 9px 10px, transparent 10px 13px); opacity: .85; }
.t-thanks { display: block; text-align: center; font-size: 10.5px; letter-spacing: .12em; color: var(--paper-muted); }
.ticket-stage .stamp { position: absolute; right: 8%; bottom: 66px; z-index: 2; animation: stamp-in .35s cubic-bezier(.2, 1.4, .4, 1) .75s both; }
@keyframes print { from { transform: translateY(-16px) rotate(-1.2deg); opacity: 0; } }
@keyframes stamp-in { from { transform: rotate(-8deg) scale(1.7); opacity: 0; } to { transform: rotate(-8deg) scale(1); opacity: .92; } }

.stars-inline i, .stars i { font-style: normal; color: var(--line2); font-size: 1rem; }
.stars-inline i { color: var(--star); }
.stars.s1 i:nth-child(-n+1), .stars.s2 i:nth-child(-n+2), .stars.s3 i:nth-child(-n+3) { color: var(--star); }
.badge { font-size: .78rem; font-weight: 700; padding: 3px 9px; border-radius: 999px; border: 1px solid var(--line2); }
.badge.ok { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 40%, transparent); }
.badge.gem { color: var(--gem); border-color: color-mix(in srgb, var(--gem) 40%, transparent); }

.team-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.team-card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; border-top: 3px solid var(--accent); }
.team-card .avatar { width: 56px; height: 56px; margin-bottom: 8px; }
@media (max-width: 760px) { .team-grid { grid-template-columns: 1fr; } }

.courses-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.course-card { display: block; color: var(--ink); background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; position: relative; overflow: hidden; transition: transform .12s, border-color .12s, box-shadow .15s; }
.course-card::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 4px; background: var(--accent); }
.course-card:hover { transform: translateY(-3px); border-color: var(--accent); text-decoration: none; box-shadow: var(--shadow); }
.course-card.locked { opacity: .6; }
.course-card.complete { border-color: color-mix(in srgb, var(--ok) 50%, var(--line)); }
.course-card.complete::after { content: "Entregado"; position: absolute; top: 14px; right: -8px; font-family: var(--display); font-weight: 800; font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--stamp); border: 2px solid var(--stamp); border-radius: 6px; padding: 1px 8px; transform: rotate(8deg); opacity: .85; }
.course-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.course-icon { font-size: 1.7rem; }
.course-icon.big { font-size: 2.6rem; }
.course-num { font-size: .75rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); font-weight: 700; }
.course-tag { color: var(--muted); font-size: .92rem; min-height: 2.6em; }
.course-goal { font-size: .88rem; }
.course-foot { display: flex; justify-content: space-between; font-size: .8rem; color: var(--muted); margin-top: 8px; }
.pct { font-weight: 700; color: var(--accent); }
.bar { height: 6px; background: var(--line); border-radius: 999px; overflow: hidden; margin-top: 8px; }
.bar i { display: block; height: 100%; background: var(--accent); border-radius: 999px; transition: width .4s; }
.bar.level { max-width: 420px; }
.how-list { padding-left: 1.2rem; display: grid; gap: 8px; max-width: 760px; }

/* ─── auth ─── */
.auth-card { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 28px; margin-top: 30px; box-shadow: var(--shadow); }
.form { display: grid; gap: 14px; margin: 18px 0; }
.form label { display: grid; gap: 6px; font-weight: 600; font-size: .9rem; }
.form input { font: 1rem var(--font); padding: 10px 12px; border-radius: 10px; border: 1px solid var(--line2); background: var(--bg); color: var(--ink); }
.form input:focus { outline: 2px solid color-mix(in srgb, var(--accent) 60%, transparent); border-color: var(--accent); }
.form-error { color: var(--bad); font-size: .9rem; margin: 0; }

/* ─── escritorio ─── */
.dash-head { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: end; margin-bottom: 20px; }
.stat-grid { display: grid; grid-template-columns: repeat(5, auto); gap: 10px; }
.stat { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 10px 14px; text-align: center; min-width: 90px; }
.stat .v { display: block; font-family: var(--display); font-size: 1.45rem; font-weight: 800; letter-spacing: -.02em; }
.stat .v.star { color: var(--star); } .stat .v.gem { color: var(--gem); }
.stat .l { font-size: .72rem; color: var(--muted); }
@media (max-width: 860px) { .dash-head { grid-template-columns: 1fr; } .stat-grid { grid-template-columns: repeat(3, 1fr); } }
.continue { display: flex; justify-content: space-between; align-items: center; gap: 20px; background: linear-gradient(120deg, var(--accent-soft), var(--panel)); border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--line)); border-radius: 16px; padding: 22px 24px; margin: 10px 0 18px; }
.continue h2 { margin-top: 0; }
@media (max-width: 700px) { .continue { flex-direction: column; align-items: flex-start; } }
.badges-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
.badge-pill { font-size: .82rem; background: var(--panel); border: 1px solid var(--line); border-radius: 999px; padding: 4px 10px; }
.badges-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 12px; }
.badge-card { display: grid; gap: 2px; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 14px; opacity: .45; }
.badge-card.earned { opacity: 1; border-color: color-mix(in srgb, var(--star) 50%, var(--line)); }
.badge-icon { font-size: 1.6rem; }
.table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.table th, .table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.table th { color: var(--muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; }
.table tr.me td { background: var(--accent-soft); }

/* ─── curso ─── */
.crumbs { font-size: .85rem; color: var(--muted); margin-bottom: 14px; }
.crumbs a { color: var(--muted); }
.course-head { display: grid; grid-template-columns: 1.1fr .9fr; gap: 24px; align-items: stretch; }
.course-head-text { display: flex; gap: 18px; align-items: flex-start; }
.northstar { background: linear-gradient(135deg, var(--accent-soft), var(--panel)); border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--line)); border-radius: 16px; padding: 18px 20px; }
.northstar .goal { font-family: var(--display); font-size: 1.15rem; font-weight: 700; line-height: 1.35; }
.course-progress { display: flex; justify-content: space-between; font-size: .85rem; color: var(--muted); margin-top: 8px; }
@media (max-width: 860px) { .course-head { grid-template-columns: 1fr; } }
.brief { margin: 22px 0 6px; max-width: 820px; }
.step-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.step-item a { display: grid; grid-template-columns: 44px 1fr auto; gap: 14px; align-items: center; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 10px 14px; color: var(--ink); transition: border-color .12s, transform .1s; }
.step-item a:hover { border-color: var(--accent); text-decoration: none; transform: translateX(3px); }
.step-item.done a { border-left: 3px solid var(--ok); }
.step-item.capstone a { background: linear-gradient(120deg, var(--amber-soft), var(--panel)); }
.step-avatar .avatar { width: 40px; height: 40px; }
.step-text { display: grid; }
.step-kind { font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); font-weight: 700; }
.step-title { font-weight: 600; }
.step-right { display: flex; align-items: center; gap: 10px; }
.check { color: var(--ok); font-weight: 800; }
.xp-tag, .gem-tag, .done-tag, .kind-pill { font-size: .75rem; font-weight: 700; padding: 2px 8px; border-radius: 999px; border: 1px solid var(--line2); white-space: nowrap; }
.gem-tag { color: var(--gem); }
.done-tag { color: var(--ok); display: inline-flex; gap: 6px; align-items: center; }
.kind-pill { background: var(--accent-soft); border-color: transparent; color: var(--accent); margin-left: auto; }

/* ─── avatares ─── */
.avatar { display: inline-block; width: 44px; height: 44px; flex: none; }
.avatar svg { width: 100%; height: 100%; }
.av-bg { fill: var(--accent-soft); }
.av-face { fill: #f6d3b8; }
.av-eye { fill: #2b2b2b; }
.av-mouth, .av-beard { stroke: #2b2b2b; stroke-width: 1.6; fill: none; stroke-linecap: round; }
.av-glass { fill: none; stroke: var(--accent); stroke-width: 1.5; }
.av-star { fill: var(--star); }
.av-vera .av-hair { fill: #3b2a55; } .av-nadia .av-hair { fill: #b3346e; } .av-tomas .av-hair { fill: #6b4a2b; }
.av-vera .av-bg { fill: var(--violet-soft); } .av-nadia .av-bg { fill: var(--rose-soft); } .av-tomas .av-bg { fill: var(--amber-soft); }

/* ─── paso ─── */
.step-page { display: grid; grid-template-columns: minmax(300px, 420px) 1fr; gap: 0; min-height: calc(100vh - 58px); }
.step-side { border-right: 1px solid var(--line); padding: 20px 22px 40px; background: var(--bg2); }
.step-main { padding: 20px 26px 60px; min-width: 0; }
@media (max-width: 960px) { .step-page { grid-template-columns: 1fr; } .step-side { border-right: 0; border-bottom: 1px solid var(--line); } }
.char-card { background: var(--panel); border: 1px solid var(--line); border-left: 4px solid var(--accent); border-radius: 12px; padding: 12px 14px; margin-bottom: 14px; }
.char-head { display: flex; align-items: center; gap: 10px; }
.char-head > div { display: grid; line-height: 1.2; }
.bubble { margin-top: 10px; background: var(--accent-soft); border-radius: 10px; padding: 10px 12px; position: relative; font-size: .95rem; }
.bubble::before { content: ""; position: absolute; top: -8px; left: 18px; border: 8px solid transparent; border-top: 0; border-bottom-color: var(--accent-soft); }
.bubble p:last-child { margin-bottom: 0; }
.prose p { margin-bottom: .7rem; }
.prose ul, .prose ol { padding-left: 1.2rem; margin: 0 0 .7rem; }
.prose li { margin: .2rem 0; }
.prose pre { background: var(--code-bg); border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; overflow: auto; font-size: 13px; line-height: 1.55; margin: 0 0 .8rem; }
.prose pre code { background: none; border: 0; padding: 0; }
.prose h3, .prose h4 { margin: 1rem 0 .4rem; }
.prose table { border-collapse: collapse; font-size: .9rem; margin-bottom: .8rem; }
.prose td, .prose th { border: 1px solid var(--line); padding: 4px 8px; text-align: left; }
.prose .tip { background: var(--panel2); border-left: 3px solid var(--accent); padding: 8px 12px; border-radius: 0 8px 8px 0; font-size: .92rem; margin-bottom: .8rem; }
.prose .warn { background: color-mix(in srgb, var(--bad) 12%, var(--panel)); border-left: 3px solid var(--bad); padding: 8px 12px; border-radius: 0 8px 8px 0; font-size: .92rem; margin-bottom: .8rem; }
.theory { font-size: .95rem; margin-bottom: 14px; }
.brief-card { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; margin-bottom: 14px; font-size: .95rem; }
.brief-card .prose ul { margin-bottom: 0; }
.mode-help { margin-bottom: 12px; }
.help-box { border-top: 1px dashed var(--line2); padding-top: 12px; margin-top: 8px; }
.help-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.hints { padding-left: 1.2rem; font-size: .92rem; margin: 8px 0; }
.hints li { background: var(--amber-soft); border-radius: 8px; padding: 6px 10px; margin: 6px 0; list-style-position: inside; }
.step-nav { display: flex; justify-content: space-between; gap: 8px; margin-top: 18px; flex-wrap: wrap; }
.step-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 14px; flex-wrap: wrap; }
.step-meta { display: flex; gap: 8px; align-items: center; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 14px; }
.question { font-weight: 600; font-size: 1.05rem; }
.options { display: grid; gap: 8px; }
.option { text-align: left; background: var(--bg); border: 1px solid var(--line2); border-radius: 10px; padding: 10px 14px; cursor: pointer; color: var(--ink); font: inherit; }
.option:hover:not([disabled]) { border-color: var(--accent); }
.option.correct { border-color: var(--ok); background: color-mix(in srgb, var(--ok) 14%, var(--bg)); }
.option.wrong { border-color: var(--bad); background: color-mix(in srgb, var(--bad) 12%, var(--bg)); }
.option code { background: none; border: 0; white-space: pre-wrap; }
.read-actions { margin-top: 14px; display: flex; justify-content: flex-end; }

/* editor */
.editor-wrap { border: 1px solid var(--line2); border-radius: 12px; overflow: hidden; background: var(--code-bg); }
.editor-bar { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 8px 10px; background: var(--panel2); border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.editor-title { font-size: .82rem; color: var(--muted); font-weight: 600; }
.editor-actions { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.editor { display: grid; grid-template-columns: 44px 1fr; min-height: 260px; max-height: 60vh; overflow: auto; }
.tall .editor { min-height: 400px; max-height: 65vh; }
.gutter { margin: 0; padding: 12px 6px 12px 0; text-align: right; color: var(--muted); font-size: 13.5px; line-height: 1.55; user-select: none; background: var(--panel2); border-right: 1px solid var(--line); }
.editor textarea { border: 0; outline: 0; resize: none; padding: 12px 14px; background: transparent; color: var(--code-ink); font-size: 13.5px; line-height: 1.55; min-height: 100%; width: 100%; white-space: pre; overflow: hidden; tab-size: 4; }
.output { border-top: 1px solid var(--line); padding: 10px 12px; font-family: var(--mono); font-size: 13px; white-space: pre-wrap; word-break: break-word; max-height: 300px; overflow: auto; }
.output .out-title { font-family: var(--font); font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); font-weight: 700; margin-bottom: 4px; }
.output .err { color: var(--bad); }
.output .okline { color: var(--ok); }
.output .running { color: var(--muted); font-style: italic; }
.blocks { position: relative; }
.blocks-menu { position: absolute; top: 34px; left: 0; z-index: 30; background: var(--panel); border: 1px solid var(--line2); border-radius: 10px; box-shadow: var(--shadow); padding: 6px; display: grid; grid-template-columns: 1fr 1fr; gap: 4px; width: 320px; }
.blocks-menu button { text-align: left; font: 12.5px var(--mono); background: var(--code-bg); border: 1px solid var(--line); border-radius: 6px; padding: 5px 8px; color: var(--ink); cursor: pointer; }
.blocks-menu button:hover { border-color: var(--accent); }
.tests-box { margin-top: 12px; }
.tests-box summary { cursor: pointer; font-size: .9rem; font-weight: 600; color: var(--muted); }
.tests-box pre { margin-top: 8px; }

/* juego: ordenar */
.order-list { list-style: none; padding: 0; margin: 0 0 12px; display: grid; gap: 6px; }
.order-list li { display: grid; grid-template-columns: 24px 1fr auto; align-items: center; gap: 8px; background: var(--code-bg); border: 1px solid var(--line2); border-radius: 8px; padding: 6px 10px; cursor: grab; }
.order-list li.dragging { opacity: .5; }
.order-list li.over { border-color: var(--accent); }
.order-list code { background: none; border: 0; white-space: pre; font-size: 13.5px; }
.grip { color: var(--muted); }
.order-btns button { background: transparent; border: 1px solid var(--line); border-radius: 6px; color: var(--ink); cursor: pointer; padding: 1px 6px; font-size: .75rem; }

/* juego: huecos */
.blanks { white-space: pre-wrap; }
.blank { display: inline-block; min-width: 90px; font: inherit; color: var(--ink); background: var(--panel); border: 1px dashed var(--accent); border-radius: 6px; padding: 1px 6px; margin: 0 2px; }
.blank.filled { border-style: solid; }
.chips { display: flex; gap: 6px; flex-wrap: wrap; margin: 6px 0 12px; }
.chip { font-family: var(--mono); font-size: 13px; background: var(--panel2); border: 1px solid var(--line2); border-radius: 999px; padding: 3px 10px; }

/* resultado */
.result { margin-top: 14px; border-radius: 14px; padding: 16px 18px; border: 1px solid var(--line2); background: var(--panel); position: relative; overflow: hidden; }
.result.ok { border-color: color-mix(in srgb, var(--ok) 55%, var(--line)); background: linear-gradient(120deg, color-mix(in srgb, var(--ok) 12%, var(--panel)), var(--panel)); }
.result.ok::after { content: "Aprobado"; position: absolute; top: 14px; right: 14px; font-family: var(--display); font-weight: 800; font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: var(--stamp); border: 2.5px solid var(--stamp); border-radius: 8px; padding: 2px 10px; transform: rotate(-8deg); opacity: .9; animation: stamp-in .35s cubic-bezier(.2, 1.4, .4, 1) .2s both; }
.result.bad { border-color: color-mix(in srgb, var(--bad) 45%, var(--line)); }
.result h3 { margin-top: 0; }
.result .stars-big { font-size: 2rem; letter-spacing: 4px; }
.result .stars-big i { font-style: normal; color: var(--line2); animation: pop .5s ease both; }
.result .stars-big i.on { color: var(--star); }
.result .stars-big i:nth-child(2) { animation-delay: .15s; } .result .stars-big i:nth-child(3) { animation-delay: .3s; }
@keyframes pop { 0% { transform: scale(.3); opacity: 0; } 70% { transform: scale(1.25); opacity: 1; } 100% { transform: scale(1); } }
.result .gains { display: flex; gap: 10px; flex-wrap: wrap; margin: 6px 0 10px; }
.result .gain { font-weight: 700; font-size: .9rem; padding: 3px 10px; border-radius: 999px; background: var(--panel2); border: 1px solid var(--line2); }
.result .gain.gem { color: var(--gem); }
.result ul.fails { padding-left: 1.2rem; font-family: var(--mono); font-size: 13px; color: var(--bad); }
.result pre { font-size: 12.5px; }
.result .diff { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.result .diff pre { margin: 0; }
@media (max-width: 700px) { .result .diff { grid-template-columns: 1fr; } }
.result .actions { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }

/* playground */
.play-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; margin-bottom: 14px; flex-wrap: wrap; }

/* accesibilidad: sin movimiento para quien lo pide */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .ticket, .ticket-stage .stamp, .result.ok::after, .result .stars-big i { animation: none; }
  button.btn.primary.pulse { animation: none; }
  .bar i, .btn, .course-card, .step-item a { transition: none; }
}