:root {
  --bg: #10141c;
  --bg-elevated: #171d29;
  --surface: #1c2333;
  --surface-hover: #242c40;
  --border: #2b3348;
  --text: #e8ecf6;
  --text-dim: #9aa7c4;
  --text-faint: #66708f;
  --accent: #f5b942;
  --accent-soft: rgba(245, 185, 66, .13);
  --folder: #5fd0c0;
  --c-pdf: #ef6461;
  --c-doc: #5f8df5;
  --c-slide: #ff9f5a;
  --c-archive: #c792ea;
  --c-data: #e0a63c;
  --c-image: #f2789f;
  --c-video: #8f8bf0;
  --c-code: #6fd08c;
  --c-bin: #8993ad;
  --c-font: #d0d8e8;
  --c-text: #9aa7c4;
  --c-file: #9aa7c4;
  --radius: 10px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f5f7fb;
    --bg-elevated: #ffffff;
    --surface: #ffffff;
    --surface-hover: #eef1f9;
    --border: #dfe4f0;
    --text: #1b2233;
    --text-dim: #565f7a;
    --text-faint: #8791ab;
    --accent: #b9790f;
    --accent-soft: rgba(185, 121, 15, .1);
    --folder: #0f8f7d;
    --c-pdf: #c8453f;
    --c-doc: #3564d6;
    --c-slide: #d97a2c;
    --c-archive: #9558c9;
    --c-data: #b17a12;
    --c-image: #c94c74;
    --c-video: #6a63d6;
    --c-code: #24915a;
    --c-bin: #5b6580;
    --c-font: #4a5372;
    --c-text: #5b6580;
    --c-file: #5b6580;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

body {
  font-family: 'Manrope', system-ui, -apple-system, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: inherit; text-decoration: none; }

/* ---- header ---- */
.site-header {
  display: flex;
  align-items: baseline;
  gap: .75rem;
  padding: 1.1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: .4rem;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  font-size: 1.15rem;
}

.brand-mark { color: var(--accent); }
.brand-text { color: var(--text); }

.cursor {
  color: var(--accent);
  animation: blink 1.1s step-end infinite;
}

@keyframes blink { 50% { opacity: 0; } }

.header-sub {
  font-size: .85rem;
  color: var(--text-faint);
}

/* ---- breadcrumb ---- */
.breadcrumb {
  font-family: 'JetBrains Mono', monospace;
  font-size: .82rem;
  padding: .75rem 1.5rem;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  white-space: nowrap;
}

.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { margin: 0 .4rem; color: var(--text-faint); }

/* ---- main ---- */
main {
  flex: 1;
  max-width: 1080px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
}

.page-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 .3rem;
  text-wrap: balance;
}

.page-lede {
  color: var(--text-dim);
  margin: 0 0 1.75rem;
  max-width: 60ch;
}

.section-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: .78rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin: 2rem 0 .8rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}

section:first-of-type .section-label { margin-top: 0; }

.section-label .count {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: .05rem .5rem;
  font-size: .72rem;
  color: var(--text-dim);
}

/* ---- folder grid ---- */
.folder-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: .7rem;
}

.folder-card {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  transition: background .12s, border-color .12s, transform .12s;
}

.folder-card:hover {
  background: var(--surface-hover);
  border-color: var(--folder);
  transform: translateY(-1px);
}

.folder-icon {
  width: 26px;
  height: 26px;
  color: var(--folder);
}

.folder-name {
  font-weight: 600;
  font-size: .95rem;
  text-wrap: balance;
}

.folder-meta {
  font-size: .78rem;
  color: var(--text-faint);
  display: flex;
  align-items: center;
  gap: .5rem;
}

.badge {
  font-style: normal;
  font-size: .68rem;
  padding: .1rem .45rem;
  border-radius: 999px;
  letter-spacing: .02em;
}

.badge-zadania { background: var(--accent-soft); color: var(--accent); }
.badge-materiały { background: rgba(95, 208, 192, .13); color: var(--folder); }

/* ---- file list ---- */
.file-list {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.file-row {
  display: grid;
  grid-template-columns: 22px 1fr auto auto auto;
  align-items: center;
  gap: .85rem;
  padding: .65rem .9rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  font-size: .88rem;
}

.file-row:last-child { border-bottom: none; }
.file-row:hover { background: var(--surface-hover); }

.file-icon { width: 20px; height: 20px; flex-shrink: 0; }
.icon-pdf { color: var(--c-pdf); }
.icon-doc { color: var(--c-doc); }
.icon-slide { color: var(--c-slide); }
.icon-archive { color: var(--c-archive); }
.icon-data { color: var(--c-data); }
.icon-image { color: var(--c-image); }
.icon-video { color: var(--c-video); }
.icon-code { color: var(--c-code); }
.icon-bin { color: var(--c-bin); }
.icon-font { color: var(--c-font); }
.icon-text { color: var(--c-text); }
.icon-file { color: var(--c-file); }

.file-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  min-width: 0;
}

.file-ext {
  font-family: 'JetBrains Mono', monospace;
  font-size: .68rem;
  color: var(--text-faint);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: .1rem .4rem;
}

.file-size, .file-date {
  font-variant-numeric: tabular-nums;
  color: var(--text-dim);
  font-size: .8rem;
  white-space: nowrap;
}

.empty-state {
  color: var(--text-faint);
  font-style: italic;
}

.site-footer {
  text-align: center;
  padding: 1.5rem;
  font-size: .78rem;
  color: var(--text-faint);
  border-top: 1px solid var(--border);
}

/* ---- mobile ---- */
@media (max-width: 640px) {
  .site-header { padding: .9rem 1rem; }
  .breadcrumb { padding: .65rem 1rem; }
  main { padding: 1.4rem 1rem 2.5rem; }
  .folder-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
  .file-row {
    grid-template-columns: 20px 1fr auto;
    grid-template-areas:
      "icon name name"
      "icon ext meta";
    row-gap: .2rem;
  }
  .file-icon { grid-area: icon; }
  .file-name { grid-area: name; white-space: normal; }
  .file-ext { grid-area: ext; justify-self: start; }
  .file-size { grid-area: meta; justify-self: end; }
  .file-date { display: none; }
}