/* DIVIRO — калькулятор длины реза. Самодостаточный виджет для встраивания. */
:root {
  --dv-bg: #ffffff;
  --dv-fg: #1b1f24;
  --dv-muted: #6b7785;
  --dv-line: #e6e9ee;
  --dv-soft: #f5f7fa;
  --dv-accent: #e2231a;      /* фирменный красный DIVIRO */
  --dv-accent-d: #b81a13;
  --dv-cut: #1a9e5f;         /* слой реза */
  --dv-skip: #b6bdc7;        /* исключённый слой */
  --dv-warn-bg: #fff6e6;
  --dv-warn-fg: #8a5a00;
  --dv-radius: 12px;
  --dv-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }

.dv-calc {
  font-family: var(--dv-font);
  color: var(--dv-fg);
  background: var(--dv-bg);
  max-width: 1040px;
  margin: 0 auto;
  line-height: 1.45;
}
.dv-calc h2 { font-size: 1.5rem; margin: 0 0 .25rem; }
.dv-calc h3 { font-size: 1rem; margin: 0 0 .6rem; }
.dv-sub { color: var(--dv-muted); margin: 0 0 1.25rem; font-size: .93rem; }

/* dropzone */
.dv-drop {
  border: 2px dashed var(--dv-line);
  border-radius: var(--dv-radius);
  padding: 2.4rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  background: var(--dv-soft);
}
.dv-drop:hover, .dv-drop.drag { border-color: var(--dv-accent); background: #fff; }
.dv-drop svg { width: 40px; height: 40px; color: var(--dv-muted); margin-bottom: .5rem; }
.dv-drop b { color: var(--dv-accent); }
.dv-drop small { display: block; color: var(--dv-muted); margin-top: .4rem; font-size: .82rem; }
.dv-hidden { display: none !important; }

/* layout */
.dv-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 1.4rem; margin-top: 1.3rem; }
@media (max-width: 760px) { .dv-grid { grid-template-columns: 1fr; } }

.dv-card { border: 1px solid var(--dv-line); border-radius: var(--dv-radius); padding: 1rem 1.1rem; }
.dv-card + .dv-card { margin-top: 1rem; }

/* preview */
.dv-preview { position: relative; background: var(--dv-soft); border-radius: var(--dv-radius); overflow: hidden; }
.dv-preview canvas { display: block; width: 100%; height: auto; }
.dv-filebar { display: flex; align-items: center; gap: .5rem; font-size: .85rem; color: var(--dv-muted); margin-bottom: .6rem; }
.dv-filebar .dv-name { color: var(--dv-fg); font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dv-relink { margin-left: auto; color: var(--dv-accent); background: none; border: none; cursor: pointer; font-size: .85rem; }

/* warnings */
.dv-warn { background: var(--dv-warn-bg); color: var(--dv-warn-fg); border-radius: 8px; padding: .55rem .7rem; font-size: .85rem; margin-top: .6rem; }
.dv-warn b { font-weight: 700; }

/* layers table */
.dv-layers { width: 100%; border-collapse: collapse; font-size: .88rem; }
.dv-layers th { text-align: left; color: var(--dv-muted); font-weight: 500; font-size: .78rem; padding: .2rem .4rem; }
.dv-layers td { padding: .32rem .4rem; border-top: 1px solid var(--dv-line); vertical-align: middle; }
.dv-layers td.dv-num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.dv-swatch { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: .45rem; vertical-align: baseline; }
.dv-badge { font-size: .7rem; padding: .1rem .4rem; border-radius: 999px; background: var(--dv-soft); color: var(--dv-muted); }

/* controls */
.dv-field { margin-bottom: .8rem; }
.dv-field label { display: block; font-size: .8rem; color: var(--dv-muted); margin-bottom: .25rem; }
.dv-field select, .dv-field input {
  width: 100%; padding: .55rem .6rem; border: 1px solid var(--dv-line); border-radius: 8px;
  font: inherit; background: #fff; color: var(--dv-fg);
}
.dv-row2 { display: grid; grid-template-columns: 1fr 1fr; gap: .8rem; }

/* result */
.dv-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: .1rem .8rem; font-size: .9rem; margin: .2rem 0 .8rem; }
.dv-metrics div { display: flex; justify-content: space-between; padding: .28rem 0; border-bottom: 1px dashed var(--dv-line); }
.dv-metrics span:first-child { color: var(--dv-muted); }
.dv-metrics b { font-variant-numeric: tabular-nums; }

.dv-price { display: flex; align-items: baseline; gap: .5rem; margin: .5rem 0; }
.dv-price .dv-amount { font-size: 2rem; font-weight: 800; color: var(--dv-fg); }
.dv-price .dv-cur { font-size: 1.1rem; color: var(--dv-muted); }
.dv-rate { color: var(--dv-muted); font-size: .82rem; }

.dv-quote { background: var(--dv-warn-bg); color: var(--dv-warn-fg); border-radius: 8px; padding: .7rem .8rem; font-size: .9rem; }

.dv-disclaimer { color: var(--dv-muted); font-size: .78rem; margin-top: .7rem; }

/* form + button */
.dv-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  width: 100%; padding: .8rem 1rem; border: none; border-radius: 10px;
  background: var(--dv-accent); color: #fff; font: inherit; font-weight: 700; cursor: pointer;
  transition: background .15s;
}
.dv-btn:hover { background: var(--dv-accent-d); }
.dv-btn:disabled { background: var(--dv-skip); cursor: default; }
.dv-hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.dv-ok { background: #eaf7ef; color: #1a7a48; border-radius: 8px; padding: .8rem; text-align: center; font-size: .92rem; }
.dv-err { color: var(--dv-accent-d); font-size: .85rem; margin-top: .4rem; }