/* Rozszerzenia istniejącego wyglądu Matematycznie. */
.hero-note { margin: 1rem 0 0; font-size: .9rem; color: var(--muted); }
.hero-note a { font-weight: 600; }
.apps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.app { min-width: 0; }
.app-card { display: grid; grid-template-columns: 3rem minmax(0, 1fr); align-content: start; gap: .85rem 1rem; padding: 0; overflow: hidden; }
.app-shot { display: block; grid-column: 1 / -1; border-bottom: 1px solid var(--line); background: var(--soft); }
.app-shot img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: contain; }
.app-card .app-art { width: 3rem; height: 3rem; margin-left: 1rem; border-radius: 12px; }
.app-card .app-art svg { width: 2.5rem; height: 2.5rem; }
.app-card .app-body { padding: 0 1rem 1rem; padding-left: 1rem; }
.app-go { display: block; min-height: 2.75rem; padding-top: .55rem; margin-top: .2rem; }
.app-actions { display: flex; flex-wrap: wrap; gap: .75rem 1rem; align-items: center; margin: 1.1rem 0 .5rem; }
.app-actions a { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; }
.app-actions .btn { gap: .5rem; }
.app-author { font-size: .88rem; color: var(--muted); margin: .75rem 0 0; }
.app-overview { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 1.5rem; align-items: start; margin: .5rem 0 1.5rem; }
.app-figure { margin: 0; min-width: 0; }
.app-figure img { display: block; width: 100%; height: auto; border: 1px solid var(--line); border-radius: 14px; background: var(--soft); }
.app-figure figcaption { margin-top: .5rem; color: var(--muted); font-size: .82rem; line-height: 1.5; }
.quick-start { min-width: 0; border: 1px solid var(--line); background: var(--soft); border-radius: 14px; padding: 1.1rem 1.25rem; scroll-margin-top: 1rem; }
.quick-start h2 { font-size: 1.1rem; }
.quick-start p { margin: .65rem 0; }
.quick-start ol { margin: .8rem 0 0; padding-left: 1.3rem; }
.quick-start li { margin: .5rem 0; }
.quick-start .btn { display: inline-flex; align-items: center; min-height: 44px; }
.progress-note { background: var(--soft); border-left: 3px solid var(--accent); padding: .8rem 1rem; margin: 1rem 0 1.5rem; border-radius: 0 10px 10px 0; font-size: .9rem; }
.progress-note p { margin: 0; }
.app-embed { margin: 1rem 0 1.5rem; border: 1px solid var(--line); border-radius: 14px; }
.app-embed > summary { padding: .9rem 1.1rem; font-weight: 600; cursor: pointer; min-height: 48px; }
.app-embed > p { padding: 0 1.1rem; font-size: .9rem; color: var(--muted); }
.app-embed .app-frame { margin: 0; border: 0; border-top: 1px solid var(--line); border-radius: 0 0 14px 14px; }
.app-embed iframe { width: 100%; min-height: 560px; height: 85vh; height: 85svh; }
.app-feedback { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: .75rem 1.5rem; padding: 1.1rem 0 1.75rem; border-top: 1px solid var(--line); }
.app-feedback h2 { font-size: 1.05rem; }
.app-feedback p { margin: .3rem 0 0; color: var(--muted); font-size: .9rem; max-width: 40rem; }
.app-feedback a { display: inline-flex; align-items: center; min-height: 44px; }
.practice-next { border: 1px solid var(--line); background: var(--soft); border-radius: 14px; padding: 1.1rem 1.25rem; margin: 1.5rem 0; }
.practice-next h2 { font-size: 1.15rem; }
.practice-next p { margin: .7rem 0; }
.practice-next .btn { margin: .3rem .5rem .3rem 0; min-height: 44px; }
@media (max-width: 767px) {
  .app-overview { grid-template-columns: minmax(0, 1fr); gap: 1rem; }
  .app-actions .btn { width: 100%; }
  .app-actions > a:not(.btn) { padding-inline: .4rem; }
  .quick-start { padding: 1rem; }
  .app-feedback { align-items: flex-start; }
  .app-feedback .btn { width: 100%; justify-content: center; }
}
@media (max-width: 639px) {
  .apps { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 400px) {
  .app-card { gap: .8rem .5rem; }
  .app-card .app-body { padding-left: .5rem; }
  .app-card .app-name { font-size: 1rem; }
}