:root {
  --calc-bg: var(--black-1000);
  --calc-surface: rgba(9, 17, 34, .82);
  --calc-surface-strong: rgba(14, 26, 49, .92);
  --calc-border: rgba(126, 182, 138, .22);
  --calc-border-strong: rgba(82, 152, 102, .58);
  --calc-text: var(--ivory-50);
  --calc-muted: var(--green-200);
  --calc-accent: var(--celtic-400);
  --calc-green: var(--celtic-600);
  --calc-warn: #facc15;
  --calc-shadow: 0 30px 90px rgba(0, 0, 0, .38);
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(rgba(126, 182, 138, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126, 182, 138, .035) 1px, transparent 1px),
    radial-gradient(circle at 12% 0%, rgba(82, 152, 102, .18), transparent 34%),
    radial-gradient(circle at 86% 12%, rgba(36, 95, 59, .16), transparent 38%),
    var(--calc-bg);
  background-size: 44px 44px, 44px 44px, auto, auto, auto;
  color: var(--calc-text);
  font-family: "Inter", "Segoe UI", system-ui, sans-serif;
}

.calc-ped-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.calc-ped-bg span {
  position: absolute;
  width: 34vw;
  aspect-ratio: 1;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(82, 152, 102, .13), transparent 65%);
  filter: blur(16px);
  animation: calcPulse 12s ease-in-out infinite alternate;
}

.calc-ped-bg span:nth-child(1) { left: -12vw; top: 6vh; }
.calc-ped-bg span:nth-child(2) { right: -10vw; top: 20vh; animation-delay: -4s; }
.calc-ped-bg span:nth-child(3) { left: 34vw; bottom: -20vw; animation-delay: -8s; }

@keyframes calcPulse {
  from { transform: translate3d(0, 0, 0) scale(.96); opacity: .54; }
  to { transform: translate3d(28px, -18px, 0) scale(1.08); opacity: .86; }
}

.calc-ped-topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px clamp(18px, 4vw, 54px);
  border-bottom: 1px solid rgba(126, 182, 138, .14);
  background: rgba(5, 7, 6, .78);
  backdrop-filter: blur(18px);
}

.calc-ped-brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: inherit;
  text-decoration: none;
}

.calc-ped-brand img {
  width: 48px;
  height: 48px;
  border: 1px solid var(--calc-border);
  border-radius: 16px;
  padding: 8px;
  background: rgba(8, 16, 31, .7);
  box-shadow: 0 0 30px rgba(82, 152, 102, .12);
}

.calc-ped-brand strong {
  display: block;
  font-size: 1.05rem;
  letter-spacing: .08em;
}

.calc-ped-brand span,
.calc-ped-topbar nav a {
  color: var(--calc-muted);
  font-size: .92rem;
}

.calc-ped-topbar nav {
  display: flex;
  gap: 10px;
}

.calc-ped-topbar nav a {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--calc-border);
  border-radius: 999px;
  padding: 0 16px;
  text-decoration: none;
  background: rgba(14, 20, 17, .56);
  transition: transform .18s ease, border-color .18s ease, color .18s ease;
}

.calc-ped-topbar nav a:hover,
.calc-ped-topbar nav a:focus-visible {
  color: var(--calc-text);
  border-color: var(--calc-border-strong);
  transform: translateY(-1px);
  outline: none;
}

.calc-ped-shell {
  width: min(1420px, calc(100% - 32px));
  margin: 0 auto;
  padding: 36px 0 72px;
}

.calc-ped-hero {
  border: 1px solid var(--calc-border);
  border-radius: 30px;
  padding: clamp(24px, 4vw, 42px);
  background: linear-gradient(135deg, rgba(14, 20, 17, .9), rgba(8, 18, 38, .62));
  box-shadow: var(--calc-shadow), inset 0 1px 0 rgba(255, 255, 255, .05);
  animation: fadeUp .45s ease both;
}

.calc-ped-kicker,
.calc-ped-eyebrow {
  color: var(--celtic-300);
  font-size: .76rem;
  font-weight: 900;
  letter-spacing: .22em;
  text-transform: uppercase;
}

.calc-ped-hero h1 {
  max-width: 820px;
  margin: 14px 0 12px;
  font-size: clamp(2.3rem, 6vw, 5.6rem);
  line-height: .95;
  letter-spacing: 0;
}

.calc-ped-hero p {
  max-width: 820px;
  color: var(--gray-200);
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  line-height: 1.7;
}

.calc-ped-alert {
  max-width: 980px;
  margin-top: 22px;
  border: 1px solid rgba(250, 204, 21, .35);
  border-radius: 18px;
  padding: 14px 16px;
  color: #fde68a;
  background: rgba(120, 53, 15, .16);
}

.calc-ped-layout {
  display: grid;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  gap: 20px;
  margin-top: 20px;
  align-items: start;
}

.calc-ped-sidebar,
.calc-ped-detail {
  border: 1px solid var(--calc-border);
  border-radius: 28px;
  background: var(--calc-surface);
  box-shadow: var(--calc-shadow);
  backdrop-filter: blur(18px);
}

.calc-ped-sidebar {
  position: sticky;
  top: 96px;
  max-height: calc(100vh - 120px);
  overflow: auto;
  padding: 18px;
}

.calc-ped-search span {
  display: block;
  margin-bottom: 8px;
  color: var(--green-200);
  font-size: .82rem;
  font-weight: 800;
}

.calc-ped-search input,
.calc-ped-form input,
.calc-ped-form select,
.calc-ped-form textarea {
  width: 100%;
  min-height: 46px;
  border: 1px solid rgba(126, 182, 138, .22);
  border-radius: 14px;
  padding: 0 14px;
  color: var(--calc-text);
  background: rgba(14, 20, 17, .78);
  outline: none;
}

.calc-ped-form textarea {
  min-height: 90px;
  padding: 12px 14px;
  resize: vertical;
}

.calc-ped-search input:focus,
.calc-ped-form input:focus,
.calc-ped-form select:focus,
.calc-ped-form textarea:focus {
  border-color: var(--calc-border-strong);
  box-shadow: 0 0 0 3px rgba(82, 152, 102, .13);
}

.calc-ped-categorias {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0;
}

.calc-ped-chip,
.calc-ped-copy,
.calc-ped-card button {
  border: 1px solid var(--calc-border);
  border-radius: 999px;
  color: var(--ivory-100);
  background: rgba(14, 20, 17, .68);
  cursor: pointer;
  font-weight: 850;
  transition: transform .16s ease, border-color .16s ease, background .16s ease;
}

.calc-ped-chip {
  min-height: 34px;
  padding: 0 12px;
  font-size: .78rem;
}

.calc-ped-chip.activa,
.calc-ped-chip:hover,
.calc-ped-chip:focus-visible,
.calc-ped-card button:hover,
.calc-ped-card button:focus-visible {
  border-color: rgba(82, 152, 102, .62);
  background: linear-gradient(135deg, rgba(36, 95, 59, .55), rgba(82, 152, 102, .28));
  transform: translateY(-1px);
  outline: none;
}

.calc-ped-lista {
  display: grid;
  gap: 10px;
}

.calc-ped-card {
  width: 100%;
  text-align: left;
  border: 1px solid rgba(126, 182, 138, .16);
  border-radius: 18px;
  padding: 14px;
  color: inherit;
  background: rgba(14, 20, 17, .52);
  cursor: pointer;
  transition: transform .16s ease, border-color .16s ease, background .16s ease;
}

.calc-ped-card:hover,
.calc-ped-card:focus-visible,
.calc-ped-card.activa {
  border-color: rgba(82, 152, 102, .58);
  background: rgba(52, 122, 77, .12);
  transform: translateY(-1px);
  outline: none;
}

.calc-ped-card strong {
  display: block;
  font-size: .98rem;
}

.calc-ped-card span {
  display: block;
  margin-top: 6px;
  color: var(--calc-muted);
  font-size: .82rem;
  line-height: 1.45;
}

.calc-ped-detail {
  min-height: 680px;
  padding: clamp(20px, 3vw, 30px);
  animation: fadeUp .5s ease both;
}

.calc-ped-detail h2 {
  margin: 10px 0 8px;
  font-size: clamp(1.8rem, 3vw, 3rem);
}

.calc-ped-detail > p {
  max-width: 850px;
  color: var(--gray-200);
  line-height: 1.65;
}

.calc-ped-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 22px;
}

.calc-ped-field {
  display: grid;
  gap: 8px;
}

.calc-ped-field label {
  color: var(--green-200);
  font-weight: 800;
  font-size: .88rem;
}

.calc-ped-field small {
  color: var(--calc-muted);
}

.calc-ped-results {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, .95fr);
  gap: 16px;
  margin-top: 20px;
}

.calc-ped-panel {
  border: 1px solid rgba(126, 182, 138, .18);
  border-radius: 22px;
  padding: 18px;
  background: rgba(14, 20, 17, .54);
}

.calc-ped-panel h3 {
  margin: 0 0 12px;
  color: var(--ivory-50);
}

.calc-ped-result-grid {
  display: grid;
  gap: 10px;
}

.calc-ped-result-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  border-bottom: 1px solid rgba(126, 182, 138, .12);
  padding: 9px 0;
}

.calc-ped-result-row span:first-child {
  color: var(--calc-muted);
}

.calc-ped-result-row strong {
  text-align: right;
  color: var(--white-1000);
}

.calc-ped-interpretacion {
  color: var(--ivory-100);
  line-height: 1.7;
}

.calc-ped-note {
  margin: 12px 0 0;
  color: var(--calc-muted);
  font-size: .86rem;
  line-height: 1.55;
}

.calc-ped-copy {
  min-height: 42px;
  margin-top: 14px;
  padding: 0 16px;
}

.percentil-card {
  display: grid;
  gap: 14px;
}

.percentil-track {
  position: relative;
  height: 18px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--celtic-300), var(--celtic-400) 40%, #bef264 50%, var(--celtic-400) 60%, var(--celtic-300));
  box-shadow: inset 0 0 14px rgba(5, 7, 6, .38);
}

.percentil-marker {
  position: absolute;
  top: 50%;
  width: 22px;
  height: 22px;
  border: 3px solid var(--white-1000);
  border-radius: 999px;
  background: var(--celtic-500);
  box-shadow: 0 0 22px rgba(82, 152, 102, .75);
  transform: translate(-50%, -50%);
}

.percentil-labels {
  display: flex;
  justify-content: space-between;
  color: var(--calc-muted);
  font-size: .76rem;
}

.percentil-svg {
  width: 100%;
  min-height: 130px;
  border: 1px solid rgba(126, 182, 138, .12);
  border-radius: 18px;
  background: rgba(5, 7, 6, .24);
}

.calc-ped-empty {
  color: var(--calc-muted);
  border: 1px dashed rgba(126, 182, 138, .26);
  border-radius: 18px;
  padding: 18px;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 980px) {
  .calc-ped-layout { grid-template-columns: 1fr; }
  .calc-ped-sidebar { position: static; max-height: none; }
  .calc-ped-results { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .calc-ped-topbar { align-items: flex-start; flex-direction: column; }
  .calc-ped-form { grid-template-columns: 1fr; }
  .calc-ped-shell { width: min(100% - 20px, 1420px); padding-top: 18px; }
}