/* calc.css — calculadora de reconstituição */
.calc-head { padding-top: calc(var(--nav-h) + clamp(36px, 6vw, 72px)); padding-bottom: 28px; }
.calc-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 20px; align-items: start; }
.calc-form { display: flex; flex-direction: column; gap: 12px; }
.step-card { position: relative; padding: 22px; border-radius: 22px; border: 1px solid var(--line); background: var(--bg-2); transition: border-color 0.3s; }
.step-card:focus-within { border-color: var(--line-2); }
.step-card .st { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.step-card .st .n { width: 26px; height: 26px; border-radius: 8px; display: grid; place-items: center; font-family: var(--font-mono); font-size: 12px; font-weight: 700; color: var(--c, var(--cyan)); border: 1px solid var(--line-2); }
.step-card .st h2 { font-size: 15.5px; font-weight: 800; letter-spacing: -0.005em; }
.step-card .st .hint { margin-left: auto; font-size: 12.5px; color: var(--ink-3); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip-btn { min-height: 40px; padding: 0 14px; border-radius: 12px; border: 1px solid var(--line-2); background: var(--surface); font-weight: 700; font-size: 14px; color: var(--ink-2); transition: all 0.2s var(--ease); }
.chip-btn:hover { color: var(--ink); border-color: var(--line-3); }
.chip-btn[aria-pressed="true"] { color: #021116; background: var(--ink); border-color: var(--ink); }
.chip-btn small { font-weight: 500; opacity: 0.7; margin-left: 4px; font-size: 12px; }
.chip-btn.sug::after { content: 'sugerido'; margin-left: 6px; font-family: var(--font-mono); font-size: 9.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--mint); }
.chip-btn.sug[aria-pressed="true"]::after { color: #0a6b45; }
.num-row { display: flex; gap: 10px; align-items: stretch; margin-top: 10px; }
.num-input { position: relative; flex: 1; }
.num-input .input { font-family: var(--font-mono); font-size: 20px; font-weight: 700; min-height: 56px; padding-right: 64px; }
.num-input .suffix { position: absolute; right: 16px; top: 50%; transform: translateY(-50%); font-family: var(--font-mono); font-size: 13px; color: var(--ink-3); pointer-events: none; }
.stepper { display: flex; flex-direction: column; gap: 4px; }
.stepper button { flex: 1; width: 44px; border-radius: 10px; border: 1px solid var(--line-2); background: var(--surface); font-size: 18px; font-weight: 700; color: var(--ink-2); }
.stepper button:hover { color: var(--ink); border-color: var(--line-3); }
.presets { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px; margin-top: 12px; }
.preset { text-align: left; padding: 12px 14px; border-radius: 14px; border: 1px solid var(--line); background: var(--surface); transition: all 0.2s var(--ease); }
.preset:hover { border-color: var(--line-2); }
.preset[aria-pressed="true"] { border-color: var(--c, var(--cyan)); background: color-mix(in srgb, var(--c, var(--cyan)) 10%, transparent); }
.preset .k { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); }
.preset .v { font-weight: 800; font-size: 15px; margin-top: 2px; }
.preset .f { font-size: 12px; color: var(--ink-3); }

/* Resultado */
.result { position: sticky; top: calc(var(--nav-h) + 28px); border-radius: 26px; border: 1px solid var(--line-2); background: var(--bg-2); overflow: hidden; }
.result-top { padding: 26px 26px 8px; background: radial-gradient(600px 260px at 100% 0%, color-mix(in srgb, var(--c, var(--cyan)) 14%, transparent), transparent 70%); }
.result-top .label { display: block; margin-bottom: 8px; }
.big-units { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.big-units b { font-family: var(--font-display); font-weight: 700; font-size: clamp(64px, 9vw, 108px); letter-spacing: -0.05em; line-height: 0.9; font-variant-numeric: tabular-nums; }
.big-units span { font-size: 17px; color: var(--ink-2); font-weight: 600; }
.big-sub { margin-top: 12px; font-size: 15px; color: var(--ink-2); }
.big-sub strong { color: var(--ink); }
.syr-wrap { padding: 8px 20px 4px; }
.syr-wrap .syr-svg { width: 100%; }
.syr-cap { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 0 26px 16px; flex-wrap: wrap; }
.stats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: var(--line); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.stats > div { background: var(--bg-2); padding: 16px 22px; }
.stats .k { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-3); }
.stats .v { font-family: var(--font-mono); font-size: 18px; font-weight: 700; margin-top: 4px; font-variant-numeric: tabular-nums; }
.stats .v small { font-size: 12px; color: var(--ink-3); font-weight: 500; margin-left: 4px; }
.alerts { display: flex; flex-direction: column; gap: 8px; padding: 16px 20px 0; }
.alerts:empty { display: none; }
.conv { padding: 18px 22px 22px; }
.conv summary { cursor: pointer; font-weight: 800; font-size: 14.5px; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.conv summary::-webkit-details-marker { display: none; }
.conv summary::after { content: '+'; font-family: var(--font-mono); color: var(--cyan); font-size: 18px; }
.conv[open] summary::after { content: '−'; }
.conv table { margin-top: 12px; }
.conv td, .conv th { padding: 9px 10px; font-family: var(--font-mono); font-size: 13.5px; }
.conv tr.on td { background: color-mix(in srgb, var(--c, var(--cyan)) 12%, transparent); color: var(--ink); }
.result-actions { display: flex; gap: 8px; padding: 0 22px 22px; flex-wrap: wrap; }

.formula { margin-top: 18px; padding: 18px 20px; border-radius: 18px; border: 1px dashed var(--line-2); font-family: var(--font-mono); font-size: 13.5px; color: var(--ink-2); line-height: 1.9; overflow-x: auto; }
.formula b { color: var(--ink); }
.mobile-bar { display: none; }

@media (max-width: 960px) {
  .calc-grid { grid-template-columns: minmax(0, 1fr); }
  .calc-grid > * { min-width: 0; }
  .result { position: static; order: -1; }
  .mobile-bar {
    display: flex; position: fixed; left: 10px; right: 10px; bottom: max(10px, env(safe-area-inset-bottom)); z-index: 90;
    align-items: center; justify-content: space-between; gap: 12px; padding: 10px 12px 10px 18px; border-radius: 18px;
    background: rgba(6, 12, 18, 0.94); border: 1px solid var(--line-2); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
    transform: translateY(140%); transition: transform 0.4s var(--ease);
  }
  .mobile-bar.show { transform: none; }
  .mobile-bar b { font-family: var(--font-display); font-size: 26px; letter-spacing: -0.03em; }
  .mobile-bar span { font-size: 13px; color: var(--ink-2); }
}
@media (max-width: 640px) {
  .step-card { padding: 18px 16px; border-radius: 18px; }
  .result-top { padding: 22px 18px 6px; }
  .syr-wrap { padding: 6px 8px 0; }
  .syr-cap { padding: 0 18px 14px; }
  .stats > div { padding: 14px 16px; }
  .stats .v { font-size: 16px; }
  .conv { padding: 16px 16px 18px; }
  .result-actions { padding: 0 16px 18px; }
  .presets { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .step-card .st .hint { display: none; }
  .mobile-bar { right: 74px; }
}
@media (max-width: 640px) {
  .syr-wrap .syr-svg { transform: scale(1.08); transform-origin: center; margin: 6px 0; }
  .big-units b { font-size: 72px; }
}