/* ============================================================
   DAILY CHALLENGE pages -- redesign 2026-09-30, `dx-` prefix.
   Home, guest home, guest result and the public leaderboard. Loaded
   after storefront.css + story.css: the ticket (`sx-daily` + `sx-board`),
   tiles, section heads and reveal come from the story system; only the
   daily-specific pieces live here.
   Text on the accent is `--bg-main`. Motion: ease-out, UI under 300ms,
   reduced motion = final state.
   ============================================================ */

.dx-page .sh-greeting { flex-direction: column; align-items: flex-start; gap: 2px; }
.dx-top-links { display: flex; gap: 8px; flex-wrap: wrap; }
.dx-top-links .sx-btn { min-height: 40px; font-size: .82rem; }
.dx-narrow { max-width: 980px; }

/* ── Today bento tweaks ── */
.dx-today .sx-daily-title { -webkit-line-clamp: 2; display: -webkit-box; -webkit-box-orient: vertical; overflow: hidden; overflow-wrap: anywhere; }
.dx-free-chip {
  display: inline-flex; align-items: center; gap: 5px; font-size: .74rem; font-weight: 700;
  color: var(--primary); background: color-mix(in srgb, var(--primary) 12%, transparent);
  padding: 4px 10px; border-radius: 999px;
}
.dx-big {
  font-family: var(--font-display); font-size: 2rem; font-weight: 800; letter-spacing: -.03em; line-height: 1;
  color: var(--text-main); font-variant-numeric: tabular-nums; margin: 2px 0;
}
.dx-score-tile .sx-tile-icon { color: var(--reading-color); background: color-mix(in srgb, var(--reading-color) 12%, transparent); }
.dx-reward-tile .sx-tile-icon { color: var(--writing-color); background: color-mix(in srgb, var(--writing-color) 13%, transparent); }
.dx-week .sx-tile-icon, .dx-join-tile .sx-tile-icon { color: var(--general-color); background: color-mix(in srgb, var(--general-color) 12%, transparent); }

.dx-week-strip { list-style: none; margin: 6px 0 2px; padding: 0; display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 4px; }
.dx-day { display: flex; flex-direction: column; align-items: center; gap: 5px; }
.dx-day-dot {
  width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; font-size: .8rem;
  border: 2px dashed var(--border-color); color: var(--bg-main);
}
.dx-day.is-done .dx-day-dot { border: 0; background: var(--primary); }
.dx-day.is-today:not(.is-done) .dx-day-dot { border-style: solid; border-color: var(--primary); }
.dx-day-name { font-size: .66rem; font-weight: 700; color: var(--text-muted); text-transform: uppercase; }
.dx-day.is-today .dx-day-name { color: var(--text-main); }

.dx-gains { list-style: none; margin: 4px 0 0; padding: 0; display: grid; gap: 6px; font-size: .82rem; }
.dx-gains i { color: var(--primary); margin-right: 6px; }

/* ── Segmented control (Everyone / cohort) ── */
.dx-seg { display: inline-flex; gap: 4px; padding: 4px; border-radius: 999px; background: var(--card-bg); border: 1px solid var(--border-color); }
.dx-seg-btn {
  display: inline-flex; align-items: center; min-height: 32px; padding: 0 14px; border-radius: 999px;
  font-size: .8rem; font-weight: 700; color: var(--text-muted); text-decoration: none; white-space: nowrap;
  transition: background-color .2s var(--sx-ease), color .15s;
}
.dx-seg-btn.on { background: var(--text-main); color: var(--bg-main); }

/* ── Ranked list ── */
.dx-list {
  list-style: none; margin: 0; padding: 8px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 4px 16px;
  border-radius: 16px; background: var(--card-bg); border: 1px solid var(--border-color); box-shadow: var(--sx-shadow);
}
.dx-row {
  display: grid; grid-template-columns: 30px minmax(0, 1fr) auto auto auto; align-items: center; gap: 10px;
  padding: 8px 10px; border-radius: 10px; min-height: 52px; transition: background-color .15s;
}
.dx-row.is-me { background: color-mix(in srgb, var(--primary) 12%, transparent); }
.dx-rank { text-align: center; font-family: var(--font-display); font-weight: 800; font-size: .95rem; color: var(--text-muted); font-variant-numeric: tabular-nums; }
.dx-row.r1 .dx-rank { color: var(--writing-color); }
.dx-row.r2 .dx-rank, .dx-row.r3 .dx-rank { color: var(--text-main); }
.dx-person { display: flex; align-items: center; gap: 10px; min-width: 0; text-decoration: none; color: var(--text-main); }
.dx-name { font-weight: 700; font-size: .86rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dx-row-meta { font-size: .74rem; color: var(--text-muted); white-space: nowrap; font-variant-numeric: tabular-nums; }
.dx-score { font-family: var(--font-display); font-weight: 800; font-size: 1rem; color: var(--text-main); text-align: right; min-width: 3ch; font-variant-numeric: tabular-nums; }
.dx-add, .dx-friend {
  width: 32px; height: 32px; border-radius: 9px; display: grid; place-items: center; font-size: .82rem;
  color: var(--text-muted); background: transparent; border: 1px solid var(--border-color); padding: 0;
}
.dx-friend { border-color: transparent; }
.dx-add { cursor: pointer; transition: color .15s, border-color .15s, transform .16s var(--sx-ease); }
.dx-add:active { transform: scale(.92); }
/* Rows without a friend control still line up with rows that have one. */
.dx-row > :last-child:not(.dx-add):not(.dx-friend) { grid-column: 4 / -1; }

/* ── History chart ── */
.dx-chart {
  display: flex; align-items: flex-end; gap: 10px; min-height: 210px; padding: 18px 18px 14px;
  border-radius: 16px; background: var(--card-bg); border: 1px solid var(--border-color); box-shadow: var(--sx-shadow);
  overflow-x: auto; scrollbar-width: none;
}
.dx-chart::-webkit-scrollbar { display: none; }
.dx-bar { flex: 1 0 52px; max-width: 88px; display: flex; flex-direction: column; align-items: center; gap: 6px; text-decoration: none; color: var(--text-main); }
.dx-bar-val { font-size: .78rem; font-weight: 800; font-variant-numeric: tabular-nums; }
.dx-bar-track { position: relative; width: 100%; height: 130px; border-radius: 10px; background: var(--notif-bg); overflow: hidden; }
.dx-bar-fill {
  position: absolute; left: 0; right: 0; bottom: 0; height: var(--h); border-radius: 10px;
  background: linear-gradient(180deg, var(--primary), color-mix(in srgb, var(--primary) 55%, var(--writing-color)));
  transform-origin: bottom;
}
.dx-bar-date { font-size: .7rem; color: var(--text-muted); white-space: nowrap; }

/* ── How it works ── */
.dx-how { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.dx-how-card {
  display: flex; flex-direction: column; gap: 6px; padding: 20px; border-radius: 16px;
  background: var(--card-bg); border: 1px solid var(--border-color); box-shadow: var(--sx-shadow);
}
.dx-how-card strong { font-family: var(--font-display); font-size: 1rem; }
.dx-how-card > span:last-child { font-size: .84rem; line-height: 1.5; color: var(--text-muted); }

.dx-note {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin: 0 0 var(--sx-gap);
  padding: 12px 16px; border-radius: 12px; font-size: .84rem; color: var(--text-muted);
  background: var(--card-bg); border: 1px dashed var(--border-color);
}
.dx-note a { margin-left: auto; font-weight: 700; color: var(--primary); text-decoration: none; }

/* ── Leaderboard page ── */
.dx-daynav { display: inline-flex; align-items: center; gap: 4px; padding: 4px; border-radius: 999px; background: var(--card-bg); border: 1px solid var(--border-color); }
.dx-day-btn {
  width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; color: var(--text-main); text-decoration: none;
  transition: background-color .15s, transform .16s var(--sx-ease);
}
.dx-day-btn:active { transform: scale(.92); }
.dx-day-btn.is-off { color: var(--text-muted); opacity: .35; }
.dx-day-label { min-width: 64px; text-align: center; font-size: .84rem; font-weight: 700; }

.dx-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 26px; }
.dx-stat {
  display: flex; flex-direction: column; gap: 2px; padding: 16px 18px; border-radius: 14px;
  background: var(--card-bg); border: 1px solid var(--border-color); box-shadow: var(--sx-shadow);
}
.dx-stat.is-me { border-color: color-mix(in srgb, var(--primary) 45%, var(--border-color)); }
.dx-stat-val { font-family: var(--font-display); font-size: 1.6rem; font-weight: 800; letter-spacing: -.02em; line-height: 1.1; font-variant-numeric: tabular-nums; }
.dx-stat-lbl { font-size: .72rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; color: var(--text-muted); }

.dx-podium {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); align-items: end; gap: 12px;
  max-width: 720px; margin: 0 auto var(--sx-gap); padding-top: 8px;
}
.dx-place { display: flex; flex-direction: column; align-items: stretch; min-width: 0; }
.dx-place.p1 { order: 2; }
.dx-place.p2 { order: 1; }
.dx-place.p3 { order: 3; }
.dx-place-who { display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 0 4px 12px; text-align: center; min-width: 0; }
.dx-place-av { display: inline-grid; padding: 3px; border-radius: 50%; border: 2px solid var(--border-color); }
.dx-place.p1 .dx-place-av { border-color: var(--writing-color); transform: scale(1.15); margin-bottom: 4px; }
.dx-place-name { max-width: 100%; font-weight: 700; font-size: .88rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dx-place.is-me .dx-place-name { color: var(--primary); }
.dx-place-score { font-family: var(--font-display); font-weight: 800; font-size: 1.15rem; font-variant-numeric: tabular-nums; }
.dx-step {
  display: grid; place-items: start center; padding-top: 12px; border-radius: 14px 14px 6px 6px;
  background: var(--card-bg); border: 1px solid var(--border-color); box-shadow: var(--sx-shadow); transform-origin: bottom;
}
.dx-place.p1 .dx-step { height: 150px; background: color-mix(in srgb, var(--writing-color) 12%, var(--card-bg)); border-color: color-mix(in srgb, var(--writing-color) 35%, var(--border-color)); }
.dx-place.p2 .dx-step { height: 110px; }
.dx-place.p3 .dx-step { height: 84px; }
.dx-step-rank { font-family: var(--font-display); font-size: 2rem; font-weight: 900; color: var(--text-muted); line-height: 1; }
.dx-place.p1 .dx-step-rank { color: var(--writing-color); font-size: 2.6rem; }

.dx-cta {
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding: 22px 24px; border-radius: 16px; background: var(--text-main); color: var(--bg-main);
}
.dx-cta-text { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.dx-cta-text strong { font-family: var(--font-display); font-size: 1.1rem; }
.dx-cta-text span { font-size: .84rem; opacity: .75; }
.dx-cta-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.dx-cta .sx-btn-soft { background: transparent; color: inherit; border-color: color-mix(in srgb, var(--bg-main) 30%, transparent); }

/* ── Guest result ── */
.dx-score-card {
  position: relative; overflow: hidden; isolation: isolate; display: grid; grid-template-columns: minmax(0, 1fr) auto;
  align-items: center; gap: 20px; margin-bottom: 18px; padding: 28px; border-radius: 16px; --lang: var(--primary);
  background: var(--card-bg); border: 1px solid var(--border-color); box-shadow: var(--sx-shadow);
  animation: sx-rise .45s var(--sx-ease) both;
}
.dx-score-card.sx-lang-ielts { --lang: var(--reading-color); }
.dx-score-card.sx-lang-german { --lang: var(--general-color); }
.dx-score-main { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.dx-score-main .sx-kicker { margin: 0; color: var(--primary); }
.dx-score-big { font-family: var(--font-display); font-size: clamp(3rem, 8vw, 4.4rem); font-weight: 900; letter-spacing: -.04em; line-height: 1; font-variant-numeric: tabular-nums; }
.dx-score-sub { font-size: .9rem; color: var(--text-muted); }
.dx-score-side { display: flex; flex-direction: column; align-items: center; gap: 10px; max-width: 230px; text-align: center; }
.dx-ring {
  --p: 0; width: 108px; height: 108px; border-radius: 50%; display: grid; place-items: center;
  background: conic-gradient(var(--lang) calc(var(--p) * 1%), var(--notif-bg) 0);
}
.dx-ring > span {
  width: 84px; height: 84px; border-radius: 50%; display: grid; place-items: center; background: var(--card-bg);
  font-family: var(--font-display); font-weight: 800; font-size: 1.2rem; font-variant-numeric: tabular-nums;
}
.dx-expire { margin: 0; font-size: .76rem; color: var(--text-muted); line-height: 1.4; }

.dx-join {
  position: relative; overflow: hidden; isolation: isolate; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 24px; align-items: center; margin-bottom: 18px; padding: 26px; border-radius: 16px; background: var(--text-main); color: var(--bg-main);
}
.dx-join::after {
  content: ""; position: absolute; z-index: -1; right: -120px; top: -160px; width: 360px; height: 360px; border-radius: 50%;
  background: radial-gradient(closest-side, color-mix(in srgb, var(--primary) 42%, transparent), transparent);
}
.dx-join .sx-kicker { color: inherit; opacity: .72; }
.dx-join-title { font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; line-height: 1.35; margin: 0 0 16px; }
.dx-join-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.dx-join-list li { display: flex; gap: 12px; align-items: flex-start; }
.dx-join-list i { color: var(--primary); font-size: 1.05rem; margin-top: 1px; }
.dx-join-list strong { display: block; font-size: .9rem; }
.dx-join-list span { display: block; font-size: .8rem; opacity: .74; }

.dx-two { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-bottom: 14px; }
.dx-panel {
  display: flex; flex-direction: column; gap: 10px; padding: 20px; border-radius: 16px;
  background: var(--card-bg); border: 1px solid var(--border-color); box-shadow: var(--sx-shadow);
}
.dx-panel-title { font-family: var(--font-display); font-size: 1rem; font-weight: 700; margin: 0; display: flex; align-items: center; gap: 8px; }
.dx-panel-title i { color: var(--primary); }
.dx-panel-text { margin: 0; font-size: .84rem; color: var(--text-muted); line-height: 1.5; }
.dx-panel-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.dx-panel-actions .sx-btn { min-height: 40px; font-size: .82rem; }
.dx-channel {
  display: flex; align-items: center; gap: 12px; margin-top: 4px; padding: 12px 14px; border-radius: 12px;
  text-decoration: none; color: var(--text-main); background: var(--notif-bg);
}
.dx-channel-icon { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; color: #229ED9; background: rgba(34, 158, 217, .12); flex-shrink: 0; }
.dx-channel-text { display: flex; flex-direction: column; min-width: 0; flex: 1; }
.dx-channel-text strong { font-size: .84rem; }
.dx-channel-text span { font-size: .74rem; color: var(--text-muted); }
.dx-back { margin: 8px 0 0; }

/* ── Hover (fine pointers only) ── */
@media (hover: hover) and (pointer: fine) {
  .dx-seg-btn:not(.on):hover, .dx-day-btn:not(.is-off):hover { color: var(--primary); }
  .dx-day-btn:not(.is-off):hover { background: var(--notif-bg); }
  .dx-person:hover .dx-name { color: var(--primary); }
  .dx-row:not(.is-me):hover { background: var(--notif-bg); }
  .dx-add:hover { color: var(--primary); border-color: var(--primary); }
  .dx-bar:hover .dx-bar-fill { filter: brightness(1.08); }
  .dx-bar:hover .dx-bar-date { color: var(--primary); }
  .dx-channel:hover { background: var(--notif-hover); }
}

/* ── Motion: rows, bars and podium steps arrive once, in order ── */
.sx-anim .dx-page [data-reveal]:not(.is-in) .dx-row { opacity: 0; transform: translateY(8px); }
.sx-anim .dx-page [data-reveal].is-in .dx-row {
  transition: opacity .4s var(--sx-ease), transform .4s var(--sx-ease), background-color .15s;
  transition-delay: calc(min(var(--i, 0), 12) * 30ms);
}
.sx-anim .dx-page [data-reveal]:not(.is-in) .dx-bar-fill { transform: scaleY(0); }
.sx-anim .dx-page [data-reveal].is-in .dx-bar-fill {
  transition: transform .7s var(--sx-ease), filter .15s;
  transition-delay: calc(var(--i, 0) * 50ms + .1s);
}
.dx-podium .dx-step { animation: dx-grow .6s var(--sx-ease) both; }
.dx-podium .dx-place-who { animation: sx-rise .5s var(--sx-ease) both; }
.dx-podium .p2 .dx-step, .dx-podium .p2 .dx-place-who { animation-delay: .08s; }
.dx-podium .p1 .dx-step, .dx-podium .p1 .dx-place-who { animation-delay: .16s; }
.dx-podium .p3 .dx-step, .dx-podium .p3 .dx-place-who { animation-delay: .24s; }
@keyframes dx-grow { from { transform: scaleY(.2); opacity: 0; } }
.dx-page .sx-today > * { animation: sx-rise .45s var(--sx-ease) both; }

/* ── Responsive ── */
@media (max-width: 980px) {
  .dx-list { grid-template-columns: 1fr; }
  .dx-how { grid-template-columns: 1fr 1fr; }
  .dx-how > :last-child { grid-column: 1 / -1; }
}
@media (max-width: 760px) {
  .dx-join, .dx-two { grid-template-columns: 1fr; }
  .dx-score-card { grid-template-columns: 1fr; padding: 22px; }
  .dx-score-side { flex-direction: row; max-width: none; text-align: left; }
  .dx-ring { width: 84px; height: 84px; flex-shrink: 0; }
  .dx-ring > span { width: 64px; height: 64px; font-size: 1rem; }
}
@media (max-width: 640px) {
  .dx-top-links { width: 100%; }
  .dx-top-links .sx-btn { flex: 1 1 0; }
  .dx-how { grid-template-columns: 1fr; gap: 10px; }
  .dx-how-card { padding: 16px; }
  .dx-row { grid-template-columns: 26px minmax(0, 1fr) auto auto; gap: 8px; padding: 8px 6px; }
  .dx-row-meta { display: none; }
  .dx-row > :last-child:not(.dx-add):not(.dx-friend) { grid-column: 3 / -1; }
  .dx-list { padding: 6px; }
  .dx-chart { gap: 8px; padding: 14px 12px 10px; min-height: 180px; }
  .dx-bar { flex-basis: 44px; }
  .dx-bar-track { height: 110px; }
  .dx-podium { gap: 8px; }
  .dx-place.p1 .dx-step { height: 118px; }
  .dx-place.p2 .dx-step { height: 88px; }
  .dx-place.p3 .dx-step { height: 66px; }
  .dx-place-name { font-size: .8rem; }
  .dx-daynav { margin-left: auto; }
  .dx-cta { padding: 18px; }
  .dx-cta-actions { width: 100%; }
  .dx-cta-actions .sx-btn { flex: 1 1 auto; }
  .dx-note a { margin-left: 0; }
  .dx-join { padding: 20px 18px; }
  .dx-join .sx-btn { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  .dx-podium .dx-step, .dx-podium .dx-place-who, .dx-score-card, .dx-page .sx-today > * { animation: none; }
  .sx-anim .dx-page [data-reveal]:not(.is-in) .dx-row { opacity: 1; transform: none; }
  .sx-anim .dx-page [data-reveal]:not(.is-in) .dx-bar-fill { transform: none; }
}