html { 
  overflow-y: scroll;        /* vedno pokaži scrollbar (rezervira prostor) */
}
:root { font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif; }
body { margin: 0; background: #0b0c10; color: #e6e6e6; }
.wrap { max-width: 1300px; margin: 0 auto; padding: 16px; }
h1 { margin: 0 0 6px; font-size: 22px; }
h2 { margin: 0 0 12px; font-size: 18px; }
.grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 16px;
  align-items: start;
}
.leftcol {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-self: start;
  grid-column: 1; /* stay in first column */
  position: relative;
  z-index: 2; /* sit above right panel */
}
.challenge {
  grid-column: 2;
  align-self: start;
}
.card_left { grid-column: 1; }
/* right-hand column card spans second column */
/*.card_right { grid-column: 2; grid-row: 1 / span 2; }*/
.card_right {
  grid-column: 2;
  grid-row: 1 / span 2;
  position: sticky;
  top: 16px;                 /* enako kot .wrap padding */
  max-height: calc(100vh - 32px);
  overflow: auto;
  z-index: 1; /* sit below left column */
}
/* challenge list scroll when long */
/*.card_left.model-list { overflow-y: auto; max-height: calc(100vh - 180px); }*/
.card_left.model-list { 
  overflow-y: auto; 
  max-height: calc(100vh - 180px);
  align-self: start;
}
.card { background: #14161c; border: 1px solid #232633;
        border-radius: 14px; padding: 14px; box-shadow: 0 8px 24px rgba(0,0,0,.35); }
/* .card.wide removed: layout now controlled via card_left/card_right */
.muted { color: #aeb3c2; }
.small { font-size: 12px; }
label { display: block; margin: 10px 0; }
input {
  width: 40%; padding: 5px 8px; border-radius: 8px;
  border: 1px solid #2a2e3f; background: #0f1117; color: #e6e6e6;
}
button {
  padding: 10px 12px; border-radius: 10px; border: 1px solid #2a2e3f;
  background: #1f6feb; color: white; cursor: pointer;
}
button.ghost { background: transparent; color: #e6e6e6; }
button:disabled, input:disabled { opacity: .55; cursor: not-allowed; }
.row { display: flex; gap: 10px; align-items: end; }
.grow { flex: 1; }

.list { display: grid; gap: 8px; }
.list button { width: 100%; text-align: left; background: #10131a; }

.challenge-row { display: flex; gap: 10px; align-items: center; }
.challenge-row button { flex: 1; }
.challenge-stats { white-space: nowrap; min-width: 140px; text-align: right; }
.canvas { position: relative; background: #0f1117; border-radius: 14px;
          overflow: auto; border: 1px solid #2a2e3f;
          display: flex; align-items: center; justify-content: center; padding: 10px; }
#pdfCanvas { max-height: 100%; display: block; max-width: 100%; filter: blur(4px); }
.canvas.revealed #pdfCanvas { filter: none; transform: none; }

/* fancy scoreboard overlay */
.scoreboard {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.92);
  color: #e6e6e6;
  padding: 16px;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 13px;
  font-family: 'Courier New', monospace;
  border: 2px solid #2a6fff;
  border-radius: 4px;
}

.sb-header { text-align: center; border-bottom: 2px solid #2a6fff; padding-bottom: 8px; }
.sb-header h2 { margin: 0; font-size: 18px; }

.sb-summary { background: #1a1e2e; padding: 8px 10px; border-left: 3px solid #00e5ff; margin: 0 0 8px 0; }

.sb-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.sb-left, .sb-right { background: #0f1117; padding: 10px; border: 1px solid #2a2e3f; border-radius: 4px; }
.sb-left h4, .sb-right h4 { margin: 0 0 8px 0; font-size: 13px; }
.sb-left ul, .sb-right ul { margin: 0; padding-left: 1.5em; }
.sb-left li, .sb-right li { margin: 4px 0; }

.sb-leaderboard { margin: 0; padding-left: 1.5em; }
.sb-leaderboard li { margin: 2px 0; line-height: 1.4; }

.sb-bottom { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.sb-bottom-left, .sb-bottom-right { background: #0f1117; padding: 10px; border: 1px solid #2a2e3f; border-radius: 4px; }
.sb-bottom-left h4, .sb-bottom-right h4 { margin: 0 0 8px 0; font-size: 13px; }
.sb-bottom-left ul, .sb-bottom-right ul { margin: 0; padding-left: 1.5em; }
.sb-bottom-left li, .sb-bottom-right li { margin: 4px 0; }

.sb-footer { text-align: center; padding-top: 8px; border-top: 1px solid #2a2e3f; }
.sb-footer button { padding: 8px 16px; background: #1f6feb; color: white; border: none; border-radius: 6px; cursor: pointer; font-size: 13px; }
.sb-footer button:hover { background: #388bfd; }


.meta { display: flex; gap: 16px; margin: 10px 0; flex-wrap: wrap; }
.result { margin-top: 10px; padding: 10px; border-radius: 12px; border: 1px solid #2a2e3f; background: #0f1117; min-height: 22px; }
pre { white-space: pre-wrap; word-break: break-word; }
.btnlink {
  display: inline-block;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid #2a2e3f;
  background: #10131a;
  color: #e6e6e6;
  text-decoration: none;
}
.btnlink:hover { filter: brightness(1.1); }