html, body { height: 100%; overflow: hidden; }
body { display: flex; flex-direction: column; }

.stup-page-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.55rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--navy-800);
  flex-shrink: 0;
}
.stup-page-header-left  { display: flex; align-items: center; gap: 0.75rem; }
.stup-page-header-right { display: flex; align-items: center; gap: 0.75rem; }
.stup-page-header-center {
  flex: 1; display: flex; align-items: center; gap: 0.5rem;
  padding: 0 2rem; min-width: 0;
}
.stup-page-header-center label {
  font-size: 0.78rem; color: var(--text-dim); font-family: var(--font-mono);
  white-space: nowrap; flex-shrink: 0;
}
.stup-page-header-center input {
  flex: 1; min-width: 0;
  background: transparent; border: none; border-bottom: 1px solid var(--border);
  color: var(--text); font-size: 0.85rem; font-family: var(--font-mono);
  padding: 0.1rem 0.25rem; outline: none; transition: border-color 0.15s;
}
.stup-page-header-center input:focus { border-bottom-color: var(--accent); }

@media (max-width: 900px) {
  html, body { height: auto; overflow-x: hidden; overflow-y: auto; }
  body { display: block; }
  .stup-title-text { display: none; }
  .result-strip { display: flex !important; }
}

@media (max-width: 768px) {
  .stup-page-header {
    display: grid;
    grid-template-areas: "left right" "center center";
    grid-template-columns: auto 1fr;
    align-items: center;
    padding: 0.4rem 0.75rem;
    gap: 0.3rem 0.5rem;
  }
  .stup-page-header-left   { grid-area: left;  gap: 0.5rem; }
  .stup-page-header-right  { grid-area: right; justify-self: end; gap: 0.25rem !important; }
  .stup-page-header-center {
    grid-area: center; flex: unset;
    padding: 0.2rem 0 0; border-top: 1px solid var(--border);
  }
}

/* Det zones + tab buttons: wrap on mobile */
@media (max-width: 600px) {
  .det-zones-row { flex-wrap: wrap !important; }
  .det-zones-row > div { flex: 1 1 100% !important; border-right: none !important; border-bottom: 1px solid var(--border); }
  .det-zones-row > div:last-child { border-bottom: none; }
  /* "DIMENZIONIRANJE" prewide for 33% at 320px — force 50% (2 per row) */
  .tab-btn { flex: 0 0 50% !important; }
}
@media (max-width: 400px) {
  .tab-btn { white-space: normal !important; line-height: 1.15; text-align: center; min-height: 2rem; }
}

/* Toggle rect/circ */
.section-toggle { display: flex; gap: 0.4rem; margin-bottom: 0.5rem; }
.section-toggle button {
  flex: 1; padding: 0.3rem 0.6rem; font-size: 0.82rem;
  background: var(--navy-700, #0d2137); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-dim); cursor: pointer;
}
.section-toggle button.active {
  background: var(--blueprint); color: #fff; border-color: var(--blueprint);
}

/* SVG panels — 2-column (core flex:1 ostavlja SVG panelima sav preostali prostor) */
.drawings-row { grid-template-columns: 1fr 1fr; }

/* Tooltip (data-tip) na labelima */
[data-tip] { position: relative; cursor: help; }
[data-tip]::after {
  content: attr(data-tip);
  position: absolute;
  bottom: 130%; left: 0;
  transform: none;
  background: var(--navy-800, #0d2137);
  color: var(--text, #e0e0e0);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.35rem 0.6rem;
  font-size: 0.71rem;
  font-family: var(--font-mono);
  line-height: 1.55;
  white-space: pre-line;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.12s;
  z-index: 500;
  min-width: 210px;
  max-width: 290px;
  text-align: left;
  font-weight: 400;
  box-shadow: 0 4px 14px rgba(0,0,0,0.45);
}
[data-tip]:hover::after { opacity: 1; }

/* Result table */
.result-table-wrap { padding: 0.5rem; }
.result-table { width: 100%; border-collapse: collapse; font-size: 0.83rem; }
.result-table th {
  background: var(--navy-800); color: var(--text-dim);
  padding: 0.3rem 0.5rem; text-align: left; font-weight: 600; font-size: 0.78rem;
}
.result-table td { padding: 0.28rem 0.5rem; border-bottom: 1px solid var(--border); }
.result-divider { height: 1rem; }
.check-ok { color: #43a047; }
.check-err { color: #e53935; }
.badge-ok { background: rgba(67,160,71,0.2); color: #43a047; padding: 0.15rem 0.4rem; border-radius: 3px; }
.badge-err { background: rgba(229,57,53,0.2); color: #e53935; padding: 0.15rem 0.4rem; border-radius: 3px; }
.badge-warn { background: rgba(255,160,0,0.2); color: #ffa000; padding: 0.15rem 0.4rem; border-radius: 3px; }
.tab-content { overflow-y: auto; flex-shrink: 0; padding: 0.5rem 0.75rem; }
.tab-content.active { display: flex; flex-direction: column; gap: 0.4rem; }
.result-card.card-ok  { border-left-color: #58d68d; }
.result-card.card-err { border-left-color: #ff5757; }