/* Sagax — antrenament cognitiv · stil */
:root {
  --bg: #F0F2F5; --surface: #FFFFFF; --surface2: #E4E6EB; --line: #CED0D4;
  --ink: #050505; --ink-soft: #65676B; --ink-mute: #73777D;
  --accent: #1668E3; --accent-ink: #FFFFFF; --accent-soft: #E7F0FD;
  --good: #177D35; --good-soft: #E3F3E8; --bad: #E41E3F; --bad-soft: #FDE8EC; --warn: #B54708; --warn-soft: #FDF0E4;
  --radius: 14px; --shadow: 0 1px 2px rgba(0,0,0,.06), 0 4px 16px rgba(0,0,0,.05);
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #18191A; --surface: #242526; --surface2: #3A3B3C; --line: #3E4042;
  --ink: #E4E6EB; --ink-soft: #B0B3B8; --ink-mute: #8A8D91;
  --accent: #4C9AFF; --accent-ink: #061A33; --accent-soft: #1B2A40;
  --good: #5AD07A; --good-soft: #14301C; --bad: #FF6B81; --bad-soft: #3A1620; --warn: #F5A45B; --warn-soft: #3A2612;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 4px 16px rgba(0,0,0,.3);
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body { background: var(--bg); color: var(--ink); font-family: 'Barlow', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; font-size: 17px; line-height: 1.45; -webkit-font-smoothing: antialiased; min-height: 100dvh; }
button { font: inherit; color: inherit; cursor: pointer; }
button:disabled { cursor: default; }
a { color: var(--accent); }
h1, h2, h3 { font-family: 'Barlow Condensed', 'Barlow', sans-serif; letter-spacing: .01em; margin: 0; line-height: 1.15; }
.wrap { max-width: 720px; margin: 0 auto; padding: 0 16px 48px; }

/* top bar */
.topbar { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.topbar .wrap { display: flex; align-items: center; gap: 12px; padding-top: 10px; padding-bottom: 10px; }
.brand { white-space: nowrap; display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-family: 'Barlow Condensed', sans-serif; font-weight: 700; font-size: 22px; letter-spacing: .04em; text-transform: uppercase; }
.brand svg { width: 28px; height: 28px; }
.brand small { font-family: 'Barlow', sans-serif; font-weight: 500; text-transform: none; letter-spacing: 0; font-size: 13px; color: var(--ink-soft); }
.spacer { flex: 1; }
.pill { display: inline-flex; align-items: center; gap: 6px; background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 5px 11px; font-size: 14px; font-weight: 600; color: var(--ink-soft); white-space: nowrap; }
.pill b { color: var(--ink); }
.icon-btn { background: var(--surface); border: 1px solid var(--line); border-radius: 999px; width: 36px; height: 36px; display: inline-grid; place-items: center; color: var(--ink-soft); }
.icon-btn svg { width: 18px; height: 18px; }

/* cards */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); }
.card + .card { margin-top: 14px; }
.section-title { font-size: 14px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-mute); margin: 26px 0 10px; }
.muted { color: var(--ink-soft); }
.small { font-size: 14px; }

/* home */
.hero { display: grid; grid-template-columns: 1fr auto; gap: 14px; align-items: center; }
.hero h1 { font-size: 34px; }
.hero p { margin: 6px 0 0; color: var(--ink-soft); }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 14px; }
.stat { background: var(--surface2); border-radius: 12px; padding: 12px; text-align: center; }
.stat b { display: block; font-family: 'Barlow Condensed', sans-serif; font-size: 28px; line-height: 1; }
.stat span { font-size: 12px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .06em; }
.xpbar { height: 8px; background: var(--surface2); border-radius: 999px; overflow: hidden; margin-top: 12px; }
.xpbar i { display: block; height: 100%; background: var(--accent); border-radius: 999px; transition: width .5s ease; }
.daily { display: flex; align-items: center; justify-content: space-between; gap: 12px; border-left: 4px solid var(--accent); }
.daily h3 { font-size: 20px; }
.daily.done { border-left-color: var(--good); }

.academy { display: grid; grid-template-columns: 56px 1fr auto; gap: 14px; align-items: center; text-decoration: none; color: inherit; transition: transform .12s ease; }
.academy:active { transform: scale(.99); }
.ring { width: 56px; height: 56px; position: relative; }
.ring svg { width: 56px; height: 56px; transform: rotate(-90deg); }
.ring circle { fill: none; stroke-width: 6; }
.ring .bgc { stroke: var(--surface2); }
.ring .fgc { stroke: var(--ac, var(--accent)); stroke-linecap: round; transition: stroke-dashoffset .6s ease; }
.ring b { position: absolute; inset: 0; display: grid; place-items: center; font-size: 13px; font-family: 'Barlow Condensed', sans-serif; }
.academy h3 { font-size: 22px; }
.academy p { margin: 2px 0 0; font-size: 14px; color: var(--ink-soft); }
.chev { color: var(--ink-mute); font-size: 22px; }

/* game list */
.game { display: grid; grid-template-columns: 44px 1fr auto; gap: 14px; align-items: center; text-decoration: none; color: inherit; }
.game .gicon { width: 44px; height: 44px; border-radius: 12px; background: var(--accent-soft); color: var(--ac, var(--accent)); display: grid; place-items: center; }
.game .gicon svg { width: 24px; height: 24px; }
.game h3 { font-size: 20px; }
.game p { margin: 2px 0 0; font-size: 14px; color: var(--ink-soft); }
.game .gstat { text-align: right; font-size: 13px; color: var(--ink-soft); }
.game .gstat b { display: block; font-family: 'Barlow Condensed', sans-serif; font-size: 22px; color: var(--ink); line-height: 1; }

/* intro */
.intro h1 { font-size: 30px; }
.intro .blurb { font-size: 18px; margin: 10px 0 0; }
.intro .howto { background: var(--accent-soft); border-radius: 12px; padding: 12px 14px; margin-top: 14px; font-size: 15px; }
.intro .src { margin-top: 12px; font-size: 13px; color: var(--ink-mute); }
.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; }

/* buttons */
.btn { border: 1px solid var(--line); background: var(--surface); border-radius: 12px; padding: 12px 18px; font-weight: 700; font-size: 16px; transition: transform .1s ease, background .15s; }
.btn:active { transform: scale(.98); }
.btn-primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn-ghost { background: transparent; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .45; }

/* round */
.round-head { display: flex; align-items: center; gap: 12px; margin: 14px 0 12px; font-size: 14px; color: var(--ink-soft); }
.round-head .bar { flex: 1; height: 6px; background: var(--surface2); border-radius: 999px; overflow: hidden; }
.round-head .bar i { display: block; height: 100%; background: var(--ac, var(--accent)); transition: width .4s ease; }
.round-head b { color: var(--ink); }
.item-context { background: var(--surface2); border-radius: 12px; padding: 12px 14px; font-size: 16px; margin-bottom: 12px; white-space: pre-line; }
.item-label { font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-mute); margin: 12px 0 6px; }
.item-prompt { font-size: 22px; margin: 6px 0 14px; }
.choices { display: grid; gap: 10px; }
.choice { text-align: left; background: var(--surface); border: 1.5px solid var(--line); border-radius: 12px; padding: 13px 14px; font-size: 16px; line-height: 1.35; transition: border-color .15s, background .15s; }
.choice:not(:disabled):hover { border-color: var(--accent); }
.choice.is-correct { border-color: var(--good); background: var(--good-soft); }
.choice.is-wrong { border-color: var(--bad); background: var(--bad-soft); }
.choice:disabled:not(.is-correct):not(.is-wrong) { opacity: .55; }
.h-tag { display: inline-block; font-family: 'Barlow Condensed', sans-serif; font-weight: 700; background: var(--surface2); border-radius: 6px; padding: 1px 7px; margin-right: 8px; font-size: 14px; }
.evidence { margin: 0 0 4px; padding-left: 22px; font-size: 15.5px; }
.evidence li { margin: 4px 0; }

/* calibrate bands */
.bands { display: grid; gap: 8px; }
.band { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; text-align: left; background: var(--surface); border: 1.5px solid var(--line); border-radius: 12px; padding: 11px 14px; border-left-width: 6px; border-left-color: color-mix(in srgb, var(--accent) calc(var(--k) * 14% + 10%), var(--surface2)); }
.band-ro { font-weight: 700; }
.band-en { font-size: 13px; color: var(--ink-soft); }
.band.is-correct { border-color: var(--good); background: var(--good-soft); }
.band.is-wrong { border-color: var(--bad); background: var(--bad-soft); }
.band:disabled:not(.is-correct):not(.is-wrong) { opacity: .55; }

/* order */
.seq { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; counter-reset: s; min-height: 20px; }
.seq li { counter-increment: s; display: flex; gap: 10px; align-items: center; background: var(--accent-soft); border-radius: 12px; padding: 10px 12px; font-size: 15.5px; }
.seq .seq-n::before { content: counter(s); display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 999px; background: var(--accent); color: var(--accent-ink); font-family: 'Barlow Condensed', sans-serif; font-weight: 700; }
.seq li.is-correct { background: var(--good-soft); } .seq li.is-correct .seq-n::before { background: var(--good); color: #fff; }
.seq li.is-wrong { background: var(--bad-soft); } .seq li.is-wrong .seq-n::before { background: var(--bad); color: #fff; }
.seq-answer li { background: var(--surface2); } .seq-answer .seq-n::before { background: var(--ink-soft); }
.pool { display: flex; flex-wrap: wrap; gap: 8px; min-height: 24px; }
.chip { background: var(--surface); border: 1.5px solid var(--line); border-radius: 999px; padding: 9px 14px; font-size: 15px; text-align: left; }
.chip:hover { border-color: var(--accent); }
.order-actions { display: flex; gap: 10px; margin-top: 14px; }
.order-actions .btn { flex: 1; }

/* feedback */
.feedback { margin-top: 16px; border-radius: var(--radius); padding: 16px; border: 1.5px solid var(--line); background: var(--surface); animation: pop .25s ease; }
@keyframes pop { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.fb-ok { border-color: var(--good); background: var(--good-soft); }
.fb-bad { border-color: var(--bad); background: var(--bad-soft); }
.fb-mid { border-color: var(--warn); background: var(--warn-soft); }
.fb-head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.fb-title { font-family: 'Barlow Condensed', sans-serif; font-weight: 700; font-size: 21px; }
.fb-points { font-family: 'Barlow Condensed', sans-serif; font-weight: 700; font-size: 20px; }
.fb-explain { margin: 10px 0 0; font-size: 16px; }
.fb-meta { margin-top: 8px; font-size: 14px; color: var(--ink-soft); }
.fb-source { margin: 8px 0 0; font-size: 12.5px; color: var(--ink-mute); text-transform: uppercase; letter-spacing: .05em; }
.fb-next { margin-top: 14px; width: 100%; }
.ach-wrap { overflow-x: auto; margin-top: 10px; }
.ach { border-collapse: collapse; width: 100%; font-size: 14px; background: var(--surface); border-radius: 10px; overflow: hidden; }
.ach th, .ach td { border: 1px solid var(--line); padding: 6px 8px; text-align: center; }
.ach td:first-child, .ach th:first-child { text-align: left; }
.ach-C { background: var(--good-soft); color: var(--good); font-weight: 700; }
.ach-I { background: var(--bad-soft); color: var(--bad); font-weight: 700; }
.ach-N { color: var(--ink-mute); }
.ach-total td { font-weight: 700; background: var(--surface2); }
.ach-win { outline: 2px solid var(--good); outline-offset: -2px; }
.ach-legend { font-size: 12px; color: var(--ink-mute); margin-top: 6px; }

/* summary */
.summary { text-align: center; }
.summary .big { font-family: 'Barlow Condensed', sans-serif; font-size: 64px; font-weight: 700; line-height: 1; color: var(--ac, var(--accent)); }
.summary h1 { font-size: 28px; margin-top: 6px; }
.summary .row { display: flex; justify-content: center; gap: 22px; margin: 14px 0; flex-wrap: wrap; }
.summary .row div b { display: block; font-family: 'Barlow Condensed', sans-serif; font-size: 26px; line-height: 1; }
.summary .row div span { font-size: 12px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .06em; }
.badges { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-top: 8px; }
.badge { background: var(--warn-soft); color: var(--warn); border-radius: 999px; padding: 6px 12px; font-weight: 700; font-size: 14px; }
.badge.locked { background: var(--surface2); color: var(--ink-mute); font-weight: 500; }
.levelup { background: var(--accent); color: var(--accent-ink); border-radius: 12px; padding: 10px 14px; font-weight: 700; margin: 10px 0; }

/* progress page */
.plist { display: grid; gap: 8px; }
.prow { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 15px; }
.prow:last-child { border-bottom: 0; }
.prow .acc { font-family: 'Barlow Condensed', sans-serif; font-weight: 700; font-size: 20px; min-width: 52px; text-align: right; }
.prow .n { font-size: 13px; color: var(--ink-soft); min-width: 64px; text-align: right; }

.back { display: inline-flex; align-items: center; gap: 6px; text-decoration: none; color: var(--ink-soft); font-weight: 600; font-size: 15px; margin: 14px 0 8px; }
.error { background: var(--bad-soft); color: var(--bad); border-radius: 12px; padding: 14px; margin-top: 20px; }
.loading { text-align: center; padding: 60px 0; color: var(--ink-soft); }
.foot { text-align: center; font-size: 12.5px; color: var(--ink-mute); margin-top: 40px; line-height: 1.6; }

@media (max-width: 480px) {
  body { font-size: 16px; }
  .brand small { display: none; }
  .brand { font-size: 20px; }
  .hero h1 { font-size: 28px; }
  .item-prompt { font-size: 20px; }
  .summary .big { font-size: 54px; }
  .hero { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }

/* antrenament adaptiv */
.adaptive { border-left: 4px solid var(--good); }
.adaptive .gicon { background: var(--good-soft); color: var(--good); }
.adaptive h3 { font-size: 22px; }
.adaptive .actions { margin-top: 12px; }
.boxes { display: grid; grid-template-columns: repeat(6, 1fr); gap: 6px; }
.box { background: var(--surface2); border-radius: 10px; padding: 8px 4px; text-align: center; }
.box b { display: block; font-family: 'Barlow Condensed', sans-serif; font-size: 22px; line-height: 1; }
.box span { font-size: 10.5px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .04em; line-height: 1.2; display: block; margin-top: 3px; }
.box:first-child { background: var(--bad-soft); } .box:first-child b { color: var(--bad); }
.box:last-child { background: var(--good-soft); } .box:last-child b { color: var(--good); }
@media (max-width: 480px) { .boxes { grid-template-columns: repeat(3, 1fr); } }