/* ── Nagłówek modułu ────────────────────────────────────────────────── */
.mod-head { padding: 40px 0 24px; max-width: 760px; }
.back {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px; color: var(--muted-foreground); text-decoration: none; margin-bottom: 16px;
}
.back:hover { color: var(--foreground); }
.mod-head h1 { font-size: 30px; font-weight: 500; letter-spacing: -.015em; margin: 0 0 10px; }
.mod-head p  { margin: 0 0 16px; color: var(--muted-foreground); font-size: 16px; }

.pill {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--card-glass); border: 1px solid var(--border); border-radius: 999px;
  padding: 6px 14px 6px 11px; font-size: 13px; box-shadow: var(--shadow-soft);
}
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--primary); position: relative; }
.dot::after {
  content: ''; position: absolute; inset: -4px; border-radius: 50%;
  border: 1px solid var(--primary); opacity: .35; animation: ping 2.6s ease-out infinite;
}
@keyframes ping {
  0%   { transform: scale(.6); opacity: .5 }
  70%  { transform: scale(1.5); opacity: 0 }
  100% { opacity: 0 }
}

/* ── Strefa upuszczania ─────────────────────────────────────────────── */
.dropzone {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px;
  padding: 46px 24px; text-align: center; cursor: pointer;
  background: var(--card-glass); border: 1px dashed var(--border-soft); border-radius: var(--radius-card);
  transition: border-color .15s, background .15s;
  box-shadow: var(--shadow-soft); backdrop-filter: blur(10px);
}
.dropzone:hover,
.dropzone:focus-visible { border-color: var(--primary); outline: none; }
.dropzone.over { border-color: var(--primary); background: var(--primary-soft); border-style: solid; }
.dz-icon  { font-size: 30px; color: var(--primary); }
.dz-title { margin: 4px 0 0; font-size: 17px; }
.dz-sub   { margin: 0; font-size: 14px; color: var(--muted-foreground); }

/* ── Obszar roboczy ─────────────────────────────────────────────────── */
.workspace { margin-top: 18px; display: flex; flex-direction: column; gap: 14px; max-width: 1200px; margin-inline: auto; }

/* ── Informacja o pliku ─────────────────────────────────────────────── */
.file-info {
  display: flex; align-items: center; gap: 12px;
  padding: 13px 16px;
  background: var(--card-glass); border: 1px solid var(--border-soft); border-radius: var(--radius-card);
  box-shadow: var(--shadow-soft); backdrop-filter: blur(10px); font-size: 14px;
}
.file-info .ti { font-size: 20px; color: var(--primary); flex-shrink: 0; }
.file-info-name { font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; }
.file-info-size { font-size: 13px; color: var(--muted-foreground); flex-shrink: 0; }

/* ── Wybór jakości ──────────────────────────────────────────────────── */
.quality-section { display: flex; flex-direction: column; gap: 10px; }
.quality-label { font-size: 13.5px; font-weight: 500; margin: 0; }

.quality-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }

.quality-btn {
  display: flex; flex-direction: column; align-items: flex-start; gap: 5px;
  padding: 16px; border-radius: var(--radius-card);
  background: var(--card-glass); border: 1px solid var(--border-soft);
  box-shadow: var(--shadow-soft); backdrop-filter: blur(10px);
  cursor: pointer; text-align: left; font: inherit;
  transition: border-color .15s, background .15s;
}
.quality-btn:hover { border-color: var(--primary); }
.quality-btn.active {
  border-color: var(--primary); background: var(--primary-soft);
}
.quality-btn:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }

.qb-icon { font-size: 20px; color: var(--primary); line-height: 1; }
.quality-btn:not(.active) .qb-icon { color: var(--muted-foreground); }
.qb-title { font-size: 14px; font-weight: 500; color: var(--foreground); }
.qb-desc  { font-size: 12px; color: var(--muted-foreground); line-height: 1.45; }

/* ── Pasek akcji ────────────────────────────────────────────────────── */
.compress-bar {
  display: flex; align-items: center; gap: 10px;
  padding: 13px 16px;
  background: var(--card-glass); border: 1px solid var(--border-soft); border-radius: var(--radius-card);
  box-shadow: var(--shadow-soft); backdrop-filter: blur(10px);
}
.btn-sm { padding: 7px 13px; font-size: 13px; }

/* ── Pasek postępu ──────────────────────────────────────────────────── */
.load-progress {
  display: flex; align-items: center; gap: 14px;
  padding: 12px 16px;
  background: var(--card-glass); border: 1px solid var(--border-soft); border-radius: var(--radius-card);
  box-shadow: var(--shadow-soft); backdrop-filter: blur(10px);
}
.lp-bar  { flex: 1; height: 4px; background: var(--border); border-radius: 2px; overflow: hidden; }
.lp-fill { height: 100%; width: 0%; background: var(--primary); border-radius: 2px; transition: width .2s ease; }
.lp-label { font-size: 13px; color: var(--muted-foreground); white-space: nowrap; }

/* ── Karta wyniku ───────────────────────────────────────────────────── */
.result-card {
  padding: 20px;
  background: var(--card-glass); border: 1px solid var(--border-soft); border-radius: var(--radius-card);
  box-shadow: var(--shadow-soft); backdrop-filter: blur(10px);
  display: flex; flex-direction: column; gap: 16px;
}
.result-card[hidden] { display: none; }

.result-sizes {
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
}
.result-size { display: flex; flex-direction: column; gap: 3px; }
.rs-label { font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted-foreground); }
.rs-value { font-size: 22px; font-weight: 500; color: var(--foreground); }
.rs-value-after { color: var(--primary); }
.result-arrow { font-size: 18px; color: var(--muted-foreground); margin-top: 14px; }
.result-badge {
  margin-left: auto; padding: 6px 14px;
  background: var(--primary-soft); color: var(--primary);
  border-radius: 999px; font-size: 14px; font-weight: 500;
}

/* ── Notatka ────────────────────────────────────────────────────────── */
.compress-note {
  margin: 0; font-size: 13px; color: var(--muted-foreground); line-height: 1.5;
}

/* ── Sekcja wyjaśniająca ────────────────────────────────────────────── */
.explainer { margin-top: 46px; }
.explainer h2 { font-size: 19px; font-weight: 500; margin: 0 0 16px; }
.ex-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.ex-item {
  background: var(--card-glass); border: 1px solid var(--border-soft);
  border-radius: var(--radius-card); padding: 20px;
  box-shadow: var(--shadow-soft); backdrop-filter: blur(10px);
}
.ex-item .ti { font-size: 20px; color: var(--primary); }
.ex-item h3  { font-size: 15px; font-weight: 500; margin: 8px 0 5px; }
.ex-item p   { margin: 0; font-size: 13.5px; line-height: 1.55; color: var(--muted-foreground); }

/* ── Komunikaty błędów ──────────────────────────────────────────────── */
.file-error {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 12px 16px; margin-top: 10px;
  background: rgba(140,36,56,.06); border: 1px solid rgba(140,36,56,.2);
  border-radius: var(--radius); font-size: 14px; color: var(--danger);
}
.file-error .ti { font-size: 18px; flex-shrink: 0; margin-top: 1px; }
.file-error-body { min-width: 0; }
.file-error-name { font-weight: 500; margin-bottom: 2px; }
.file-error-msg  { color: var(--muted-foreground); font-size: 13px; }
.file-error-close {
  margin-left: auto; background: none; border: 0; cursor: pointer;
  color: var(--muted-foreground); font-size: 16px; padding: 0 0 0 8px; flex-shrink: 0;
}
.file-error-close:hover { color: var(--foreground); }
.errors-list { display: flex; flex-direction: column; gap: 6px; margin-top: 12px; }

/* ── Responsywność ──────────────────────────────────────────────────── */
@media (max-width: 900px) { .ex-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) {
  .ex-grid { grid-template-columns: 1fr; }
  .mod-head h1 { font-size: 25px; }
  .quality-grid { grid-template-columns: 1fr; }
  .result-sizes { flex-direction: column; gap: 10px; }
  .result-badge { margin-left: 0; }
}