@font-face {
  font-family: 'Pacifico';
  src: url('../../../fonts/Pacifico-Regular.ttf') format('truetype');
  font-display: swap;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  color: var(--azul-noche);
  background:
    radial-gradient(circle at 7% 8%, rgba(255,183,3,.2), transparent 22rem),
    radial-gradient(circle at 92% 28%, rgba(78,198,255,.2), transparent 25rem),
    linear-gradient(180deg, #fffdf7 0%, var(--crema-papel) 54%, #eaffea 100%);
  font-family: var(--font-cuerpo);
  line-height: 1.55;
}

button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { color: inherit; }

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 12px;
  color: #fff;
  background: var(--azul-noche);
  transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.activity-header {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 76px;
  padding: 12px clamp(16px, 4vw, 56px);
  border-bottom: 1px solid rgba(26,58,122,.1);
  background: rgba(255,255,255,.9);
  box-shadow: 0 8px 30px rgba(26,58,122,.07);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  min-width: 0;
  flex-direction: column;
  color: inherit;
  text-decoration: none;
  line-height: 1.05;
}
.brand__collection {
  font-family: var(--font-titulo);
  font-size: clamp(.88rem, 2vw, 1.05rem);
  font-weight: 800;
}
.brand__signature,
.signature {
  color: var(--naranja-texto);
  font-family: var(--font-firma);
  font-weight: 400;
}
.brand__signature { font-size: 1.3rem; }

.back-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 9px 16px;
  border: 2px solid rgba(26,58,122,.12);
  border-radius: 999px;
  color: var(--azul-noche);
  background: #fff;
  font-family: var(--font-titulo);
  font-weight: 700;
  text-decoration: none;
  transition: transform .2s ease, border-color .2s ease;
}
.back-link:hover { transform: translateY(-2px); border-color: var(--cielo-renzo); }

.editor-page {
  width: min(1460px, 100%);
  margin: 0 auto;
  padding: clamp(30px, 5vw, 68px) clamp(14px, 3vw, 42px) 64px;
}

.editor-intro {
  max-width: 820px;
  margin: 0 auto clamp(30px, 4vw, 48px);
  text-align: center;
}
.eyebrow {
  display: inline-block;
  margin-bottom: 8px;
  padding: 7px 14px;
  border-radius: 999px;
  color: var(--azul-noche);
  background: var(--amarillo-sol);
  font-family: var(--font-titulo);
  font-size: .8rem;
  font-weight: 800;
  letter-spacing: .07em;
  text-transform: uppercase;
}
.editor-intro h1 {
  margin: 0 0 12px;
  color: var(--azul-noche);
  font-family: var(--font-titulo);
  font-size: clamp(2.2rem, 6vw, 4.6rem);
  line-height: 1.04;
}
.editor-intro p {
  max-width: 720px;
  margin: 0 auto;
  color: var(--gris-suave);
  font-size: clamp(1rem, 2vw, 1.18rem);
}

.editor-layout {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: clamp(18px, 3vw, 36px);
  align-items: start;
}

.figure-panel,
.toolbar,
.canvas-card,
.export-panel,
.help-card {
  border: 1px solid rgba(26,58,122,.1);
  background: rgba(255,255,255,.94);
  box-shadow: 0 16px 40px rgba(26,58,122,.09);
}

.figure-panel {
  position: sticky;
  top: 18px;
  max-height: calc(100vh - 36px);
  padding: 18px;
  overflow-y: auto;
  border-radius: 26px;
  scrollbar-color: rgba(26,58,122,.25) transparent;
}

.panel-heading,
.canvas-heading,
.export-panel > div:first-child {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.panel-heading h2,
.toolbar__label,
.help-card h2 {
  margin: 0;
  font-family: var(--font-titulo);
  font-weight: 800;
}
.panel-heading h2 { font-size: 1.1rem; }
.panel-heading p {
  margin: 2px 0 0;
  color: var(--gris-suave);
  font-size: .82rem;
}
.step-number {
  display: inline-grid;
  width: 28px;
  height: 28px;
  flex: 0 0 28px;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--naranja-icono);
  font-family: var(--font-titulo);
  font-size: .84rem;
  font-weight: 800;
}

.figure-filter {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-top: 16px;
  padding: 4px;
  border-radius: 14px;
  background: var(--crema-papel);
}
.figure-filter__button {
  min-height: 38px;
  padding: 6px 8px;
  border: 0;
  border-radius: 11px;
  background: transparent;
  cursor: pointer;
  font-family: var(--font-titulo);
  font-size: .76rem;
  font-weight: 800;
}
.figure-filter__button.is-active {
  color: var(--azul-noche);
  background: #fff;
  box-shadow: 0 4px 12px rgba(26,58,122,.1);
}

.figure-list {
  display: grid;
  gap: 12px;
  margin-top: 12px;
}
.figure-option[hidden] { display: none; }
.figure-option {
  display: grid;
  grid-template-columns: 62px 1fr;
  align-items: center;
  gap: 10px;
  min-height: 74px;
  padding: 6px 10px 6px 6px;
  border: 2px solid transparent;
  border-radius: 18px;
  background: var(--crema-papel);
  cursor: pointer;
  font-family: var(--font-titulo);
  font-weight: 800;
  text-align: left;
  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.figure-option:hover { transform: translateY(-2px); border-color: rgba(78,198,255,.55); }
.figure-option.is-selected {
  border-color: var(--cielo-renzo);
  background: var(--celeste-claro);
  box-shadow: 0 6px 16px rgba(78,198,255,.2);
}
.figure-option__preview {
  display: grid;
  width: 60px;
  height: 60px;
  place-items: center;
  overflow: hidden;
  border-radius: 14px;
  background: #fff;
}
.figure-option__preview img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  mix-blend-mode: multiply;
}

.studio { min-width: 0; }

.toolbar {
  display: grid;
  grid-template-columns: auto minmax(260px, 1fr) minmax(180px, .65fr);
  gap: 16px;
  align-items: center;
  margin-bottom: 20px;
  padding: 16px;
  border-radius: 24px;
}
.toolbar__section { min-width: 0; }
.toolbar__section + .toolbar__section {
  padding-left: 16px;
  border-left: 1px solid rgba(26,58,122,.1);
}
.toolbar__label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  font-size: .82rem;
}
.toolbar__label output {
  margin-left: auto;
  color: var(--gris-suave);
  font-family: var(--font-cuerpo);
  font-weight: 700;
}
.color-fieldset { width: 100%; min-width: 0; margin: 0; padding: 0; border: 0; }
.color-fieldset legend { padding: 0; }
.tool-buttons { display: flex; gap: 8px; }
.tool-button,
.action-button,
.primary-button,
.secondary-button {
  min-height: 44px;
  border-radius: 14px;
  cursor: pointer;
  font-family: var(--font-titulo);
  font-weight: 800;
  transition: transform .18s ease, background .18s ease, opacity .18s ease;
}
.tool-button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border: 2px solid rgba(26,58,122,.1);
  background: var(--crema-papel);
}
.tool-button.is-active {
  border-color: var(--cielo-renzo);
  background: var(--celeste-claro);
}

.color-palette { display: flex; flex-wrap: wrap; gap: 8px; }
.color-swatch,
.custom-color {
  position: relative;
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  border-radius: 50%;
  cursor: pointer;
}
.color-swatch {
  border: 3px solid #fff;
  background: var(--swatch);
  box-shadow: 0 0 0 1px rgba(26,58,122,.16);
}
.color-swatch.is-selected {
  box-shadow: 0 0 0 3px var(--azul-noche), 0 5px 12px rgba(26,58,122,.2);
  transform: scale(1.06);
}
.custom-color {
  display: grid;
  place-items: center;
  overflow: hidden;
  color: #fff;
  background: conic-gradient(#ff5a5a, #ffd43b, #52b848, #4ec6ff, #a66cff, #ff5a5a);
  box-shadow: inset 0 0 0 3px #fff, 0 0 0 1px rgba(26,58,122,.15);
  font-size: 1.35rem;
  font-weight: 800;
}
.custom-color input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.size-control input {
  width: 100%;
  min-height: 28px;
  accent-color: var(--naranja-icono);
  cursor: pointer;
}

.canvas-card {
  padding: clamp(12px, 2vw, 20px);
  border-radius: 28px;
}
.canvas-heading {
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  font-family: var(--font-titulo);
}
.canvas-heading > div { display: flex; align-items: center; gap: 9px; }
.touch-hint { color: var(--gris-suave); font-size: .8rem; font-weight: 700; }

.canvas-shell {
  position: relative;
  width: min(100%, 700px);
  aspect-ratio: 210 / 297;
  margin: 0 auto;
  overflow: hidden;
  border: 3px solid rgba(26,58,122,.12);
  border-radius: 18px;
  background: #fff;
  box-shadow: inset 0 0 26px rgba(26,58,122,.05);
}
.canvas-shell canvas {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
}
#paint-canvas {
  z-index: 1;
  cursor: crosshair;
  touch-action: none;
}
#outline-canvas {
  z-index: 2;
  pointer-events: none;
  mix-blend-mode: multiply;
}
.canvas-loading {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: grid;
  place-items: center;
  color: var(--azul-noche);
  background: rgba(255,255,255,.9);
  font-family: var(--font-titulo);
  font-weight: 800;
}
.canvas-loading.is-hidden { display: none; }
.canvas-help {
  margin: 12px 0 0;
  color: var(--gris-suave);
  font-size: .84rem;
  text-align: center;
}

.history-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: 16px 0;
}
.action-button {
  padding: 9px 16px;
  border: 2px solid rgba(26,58,122,.12);
  background: #fff;
}
.action-button--danger { color: #a5382d; }
.action-button:disabled { cursor: not-allowed; opacity: .42; }
.action-button:not(:disabled):hover,
.tool-button:hover,
.primary-button:hover,
.secondary-button:hover { transform: translateY(-2px); }

.export-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px;
  border-radius: 24px;
}
.export-panel strong { font-family: var(--font-titulo); font-size: 1.05rem; }
.export-panel p { margin: 2px 0 0; color: var(--gris-suave); font-size: .84rem; }
.export-actions { display: flex; gap: 10px; flex: 0 0 auto; }
.primary-button,
.secondary-button { padding: 10px 18px; }
.primary-button { border: 2px solid var(--naranja-icono); color: #fff; background: var(--naranja-icono); }
.secondary-button { border: 2px solid var(--cielo-renzo); background: var(--celeste-claro); }
.status-message { min-height: 1.5em; margin: 12px 0 0; color: var(--verde-texto); font-weight: 800; text-align: center; }

.help-card {
  max-width: 900px;
  margin: 34px auto 0;
  padding: 22px clamp(20px, 4vw, 38px);
  border-radius: 24px;
}
.help-card h2 { font-size: 1.2rem; }
.help-card ul {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}
.help-card li {
  position: relative;
  padding-left: 28px;
  color: var(--gris-suave);
  font-size: .9rem;
}
.help-card li::before { content: '★'; position: absolute; left: 0; color: var(--amarillo-sol); }

.activity-footer {
  padding: 28px 16px;
  color: rgba(255,255,255,.8);
  background: var(--azul-noche);
  text-align: center;
}
.activity-footer p { margin: 0; }
.activity-footer .signature { color: var(--amarillo-sol); font-size: 1.2rem; }

:focus-visible {
  outline: 3px solid var(--naranja-icono);
  outline-offset: 3px;
}

@media (max-width: 1080px) {
  .editor-layout { grid-template-columns: 1fr; }
  .figure-panel { position: static; max-height: none; overflow: visible; }
  .figure-list { grid-template-columns: repeat(3, 1fr); }
  .figure-option { grid-template-columns: 56px 1fr; }
}

@media (max-width: 820px) {
  .toolbar { grid-template-columns: 1fr 1fr; }
  .toolbar__section + .toolbar__section { padding-left: 0; border-left: 0; }
  .color-fieldset { grid-column: 1 / -1; grid-row: 2; }
  .help-card ul { grid-template-columns: 1fr; gap: 10px; }
}

@media (max-width: 620px) {
  .activity-header { align-items: flex-start; gap: 8px; }
  .back-link { padding: 8px 12px; font-size: .78rem; }
  .back-link__wide { display: none; }
  .brand__collection { max-width: 160px; }
  .editor-page { padding-top: 30px; }
  .editor-intro { text-align: left; }
  .editor-intro h1 { font-size: 2rem; }
  .figure-panel { padding: 14px; }
  .figure-list { gap: 8px; }
  .figure-option {
    grid-template-columns: 1fr;
    justify-items: center;
    gap: 5px;
    padding: 7px 4px;
    font-size: .82rem;
    text-align: center;
  }
  .figure-option__preview { width: 58px; height: 58px; }
  .toolbar { grid-template-columns: 1fr; padding: 14px; }
  .color-fieldset { grid-column: auto; grid-row: auto; }
  .color-palette { justify-content: center; }
  .tool-buttons { width: 100%; }
  .tool-button { flex: 1; justify-content: center; }
  .canvas-heading { align-items: flex-start; flex-direction: column; gap: 4px; }
  .canvas-card { border-radius: 20px; }
  .canvas-shell { border-width: 2px; border-radius: 12px; }
  .history-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .history-actions .action-button--danger { grid-column: 1 / -1; }
  .export-panel { align-items: stretch; flex-direction: column; }
  .export-actions { display: grid; grid-template-columns: 1fr; }
  .primary-button, .secondary-button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}

:root { --verde-texto:#397522; --cielo-texto:#176B9A; }