/* Tarea 3 · Monta el equipo — estilos */

:root {
  --color-bg: #f5f3ec;
  --color-surface: #ffffff;
  --color-border: #e2ddcf;
  --color-text: #1a2130;
  --color-text-muted: #5c6577;
  --color-accent: #16243f;
  --color-accent-2: #223559;
  --color-accent-contrast: #ffffff;
  --color-accent-soft: #e8ecf3;
  --color-gold: #a97c1f;
  --color-gold-bright: #c9992f;
  --color-gold-soft: #f6eed9;
  --color-warm: #a97c1f;
  --color-warm-soft: #f6eed9;
  --color-success-bg: #e9f4ec;
  --color-success-border: #4c8c62;
  --color-success-text: #205c37;
  --color-error-bg: #fbeeea;
  --color-error-border: #c15b45;
  --color-error-text: #8a3a26;
  --radius: 14px;
  --radius-sm: 9px;
  --max-width: 820px;
  --focus-ring: 3px solid #0b63c5;
  --shadow-sm: 0 1px 2px rgba(20, 24, 35, 0.08), 0 1px 1px rgba(20, 24, 35, 0.06);
  --shadow-md: 0 10px 24px rgba(20, 24, 35, 0.12), 0 2px 6px rgba(20, 24, 35, 0.07);
  --shadow-lg: 0 20px 44px rgba(20, 24, 35, 0.16), 0 4px 10px rgba(20, 24, 35, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--color-bg);
  background-image:
    radial-gradient(circle at 100% 0%, rgba(169, 124, 31, 0.06), transparent 45%),
    radial-gradient(circle at 0% 100%, rgba(22, 36, 63, 0.05), transparent 40%);
  background-attachment: fixed;
  color: var(--color-text);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16.5px;
  line-height: 1.55;
  overflow-x: hidden;
}

h1, h2, h3 {
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.01em;
}

a {
  color: var(--color-accent);
}

code {
  background: var(--color-accent-soft);
  padding: 0.1em 0.4em;
  border-radius: 4px;
  font-size: 0.95em;
}

:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

.app-header {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2) 60%, #1c2c4a);
  color: var(--color-accent-contrast);
  padding: 1.75rem 1rem;
  text-align: center;
  position: relative;
  box-shadow: var(--shadow-lg);
}

.app-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--color-gold-bright), transparent);
}

.app-header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.9rem;
}

.app-crest {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  object-fit: contain;
}

.app-header-inner > div {
  text-align: left;
}

.app-header h1 {
  margin: 0.2rem 0 0;
  font-size: 1.55rem;
  letter-spacing: -0.015em;
}

.eyebrow {
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-gold-bright);
  font-weight: 600;
}

.progress-nav {
  max-width: var(--max-width);
  margin: 1.5rem auto 0;
  padding: 0 1rem;
}

.progress-nav ol {
  list-style: none;
  display: flex;
  align-items: flex-start;
  padding: 0;
  margin: 0;
  counter-reset: step;
}

.progress-nav li {
  flex: 1;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  text-align: center;
  color: var(--color-text-muted);
  counter-increment: step;
}

.progress-nav li::before {
  content: counter(step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  color: var(--color-text-muted);
  font-weight: 700;
  font-size: 0.78rem;
  z-index: 1;
}

.progress-nav li::after {
  content: "";
  position: absolute;
  top: 13px;
  left: calc(-50% + 13px);
  width: calc(100% - 26px);
  height: 2px;
  background: var(--color-border);
  z-index: 0;
}

.progress-nav li:first-child::after {
  display: none;
}

.progress-nav li[data-state="current"] {
  color: var(--color-accent);
  font-weight: 700;
}

.progress-nav li[data-state="current"]::before {
  border-color: var(--color-gold);
  color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-gold-soft);
}

.progress-nav li[data-state="done"] {
  color: var(--color-text);
}

.progress-nav li[data-state="done"]::before {
  content: "✓";
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

.progress-nav li[data-state="done"]::after {
  background: var(--color-accent);
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.25rem 1.25rem 4rem;
}

.screen h2 {
  font-size: 1.55rem;
  margin: 0 0 1.5rem;
  padding-left: 0.9rem;
  border-left: 4px solid var(--color-gold);
}

.screen > p {
  margin: 0 0 1.4rem;
  max-width: 60ch;
}

.instructions {
  color: var(--color-text-muted);
  font-size: 1.02rem;
  margin: 0 0 1.75rem;
  max-width: 60ch;
}

.privacy-note {
  background: var(--color-warm-soft);
  border: 1px solid #eddcc2;
  border-radius: var(--radius);
  padding: 1.15rem 1.4rem;
  font-size: 0.94rem;
  margin: 2rem 0 2.25rem;
}

.field {
  margin: 2rem 0;
}

.field label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.field-hint {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  margin: 0.15rem 0 0.5rem;
}

.field input[type="text"],
.field textarea {
  width: 100%;
  max-width: 320px;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: inherit;
  background: var(--color-surface);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}

.field input[type="text"]:focus-visible,
.field textarea:focus-visible {
  border-color: var(--color-accent);
}

.field textarea {
  max-width: 100%;
  resize: vertical;
}

.field-error {
  color: var(--color-error-text);
  font-size: 0.9rem;
  min-height: 1.2em;
  margin: 0.35rem 0 0;
}

.btn {
  font-size: 0.98rem;
  font-weight: 600;
  font-family: inherit;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  min-height: 46px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.12s ease, box-shadow 0.12s ease, background-color 0.12s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn:active {
  transform: translateY(0);
}

.btn:disabled,
.option-btn:disabled,
.component-chip:disabled,
.order-controls button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none;
}

.is-locked {
  opacity: 0.7;
  pointer-events: none;
  filter: grayscale(0.15);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-2));
  color: var(--color-accent-contrast);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #1c3050, var(--color-accent-2));
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-accent);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-accent-soft);
  border-color: var(--color-accent);
}

.link-button {
  background: none;
  border: none;
  color: var(--color-accent);
  text-decoration: underline;
  cursor: pointer;
  font-size: 0.9rem;
  padding: 0.4rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2rem;
}

.feedback {
  margin-top: 1.25rem;
  font-weight: 600;
  min-height: 1.4em;
}

/* ---- Reto 1: placa base ---- */

.reto1-layout {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.components-tray {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.component-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.5rem 0.9rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  cursor: grab;
  font-size: 0.92rem;
  min-height: 48px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.12s ease, box-shadow 0.12s ease, border-color 0.12s ease;
}

.component-chip:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.component-chip[aria-pressed="true"] {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
}

.component-chip[data-placed="true"] {
  opacity: 0.45;
}

.component-chip .chip-icon {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
}

.board-wrap {
  position: relative;
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}

.board {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
}

.board-label {
  fill: #cfe3f2;
  font-size: 11px;
}

.drop-zone {
  position: absolute;
  border-radius: 8px;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.2rem;
  cursor: pointer;
  box-shadow: none;
  transition: box-shadow 0.15s ease;
}

/* Antes de interactuar, la placa se ve como una imagen normal: sin aros
   permanentes. Solo al seleccionar o arrastrar un componente aparece un
   resalte muy discreto sobre las cinco zonas posibles, sin indicar cuál
   es la correcta. */
.board-wrap.selecting .drop-zone:not([data-filled="true"]) {
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.3);
}

.drop-zone:hover,
.drop-zone:focus-visible {
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.55);
}

.drop-zone[data-selected-target="true"] {
  box-shadow: 0 0 0 3px var(--color-warm);
}

.drop-zone[data-filled="true"] {
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.65);
}

.drop-zone[data-result="correct"] {
  box-shadow: 0 0 0 3px var(--color-success-border);
}

.drop-zone[data-result="incorrect"] {
  box-shadow: 0 0 0 3px var(--color-error-border);
}

.zone-number {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.88);
  color: #0a3327;
  font-size: 0.65rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.board-wrap.selecting .zone-number,
.drop-zone:hover .zone-number,
.drop-zone:focus-visible .zone-number,
.drop-zone[data-filled="true"] .zone-number,
.drop-zone[data-result] .zone-number {
  opacity: 1;
}

.zone-badge {
  background: rgba(10, 51, 39, 0.88);
  color: #ffffff;
  font-weight: 600;
  font-size: 0.72rem;
  line-height: 1.2;
  padding: 0.3rem 0.55rem;
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
  max-width: 94%;
  text-align: center;
}

.drop-zone[data-result="correct"] .zone-badge::after {
  content: " ✓";
}

.drop-zone[data-result="incorrect"] .zone-badge::after {
  content: " ✗";
}

/* ---- Reto 2: escenarios ---- */

.scenario-list, .situation-list, .order-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

.scenario-item, .situation-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  padding: 1.35rem 1.5rem;
  box-shadow: var(--shadow-sm);
}

.scenario-item p, .situation-item p {
  margin: 0 0 0.9rem;
  font-size: 1.02rem;
}

.option-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.option-btn {
  border: 2px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  border-radius: var(--radius-sm);
  padding: 0.55rem 1.05rem;
  cursor: pointer;
  font-size: 0.92rem;
  min-height: 44px;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.option-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.option-btn[aria-pressed="true"] {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
  font-weight: 600;
}

.option-btn[data-result="correct"] {
  border-color: var(--color-success-border);
  background: var(--color-success-bg);
  color: var(--color-success-text);
}

.option-btn[data-result="incorrect"] {
  border-color: var(--color-error-border);
  background: var(--color-error-bg);
  color: var(--color-error-text);
}

.result-mark {
  font-weight: 700;
  margin-left: 0.4rem;
}

.situation-explanation {
  margin-top: 0.9rem;
  padding: 0.85rem 1.05rem;
  background: var(--color-accent-soft);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.94rem;
  line-height: 1.55;
  display: none;
}

.situation-explanation[data-visible="true"] {
  display: block;
}

/* ---- Reto 4: orden ---- */

.order-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  padding: 1rem 1.3rem;
  box-shadow: var(--shadow-sm);
}

.order-item[data-result="correct"] {
  border-color: var(--color-success-border);
  box-shadow: 0 0 0 1px var(--color-success-border);
}

.order-item[data-result="incorrect"] {
  border-color: var(--color-error-border);
  box-shadow: 0 0 0 1px var(--color-error-border);
}

.order-position {
  font-weight: 700;
  min-width: 1.8rem;
  height: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.order-text {
  flex: 1;
}

.order-controls {
  display: flex;
  gap: 0.3rem;
}

.order-controls button {
  min-width: 40px;
  min-height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  cursor: pointer;
  font-size: 1rem;
  transition: background-color 0.12s ease;
}

.order-controls button:not(:disabled):hover {
  background: var(--color-accent-soft);
  border-color: var(--color-accent);
}

.order-controls button:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

/* ---- Resultado ---- */

.result-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-gold);
  border-radius: var(--radius);
  padding: 2rem;
  max-width: 480px;
  margin: 0 auto;
  box-shadow: var(--shadow-lg);
}

.result-card .eyebrow {
  color: var(--color-gold);
}

.result-id {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 0.15rem 0 1.1rem;
  color: var(--color-accent);
}

.result-card h2 {
  font-size: 1.15rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  border-left: none;
  padding-left: 0;
}

.result-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem 1rem;
  margin: 0.5rem 0 1rem;
  font-size: 1.02rem;
}

.result-grid dt {
  color: var(--color-text-muted);
}

.result-grid dd {
  margin: 0;
  font-weight: 700;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.result-total {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-accent);
  background: var(--color-gold-soft);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.result-corrected {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.result-final-answer {
  margin-top: 1.25rem;
  border-top: 1px solid var(--color-border);
  padding-top: 1rem;
}

.result-final-answer h3 {
  font-size: 1rem;
  margin: 0 0 0.35rem;
}

.result-final-answer p {
  margin: 0;
  white-space: pre-wrap;
}

.result-note {
  margin-top: 1.25rem;
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

.copy-block {
  max-width: 480px;
  margin: 1.5rem auto 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-sm);
}

.copy-block h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
}

.copy-block .instructions {
  margin: 0 0 0.75rem;
  font-size: 0.88rem;
}

.result-plain-text {
  width: 100%;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.85rem;
  line-height: 1.5;
  padding: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  resize: vertical;
}

.copy-confirm {
  font-size: 0.88rem;
  color: var(--color-success-text);
  align-self: center;
}

/* ---- Modal créditos ---- */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 20, 30, 0.55);
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 10;
}

.modal-backdrop:not([hidden]) {
  display: flex;
}

.modal {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 1.5rem;
  max-width: 480px;
  width: 100%;
  box-shadow: var(--shadow-md);
}

.app-footer {
  text-align: center;
  padding: 1rem;
}

/* ---- Modo captura ---- */

body.capture-mode .no-print,
body.capture-mode .app-header,
body.capture-mode .progress-nav,
body.capture-mode #btn-restart {
  display: none !important;
}

body.capture-mode main {
  padding-top: 2rem;
}

body.capture-mode .result-card {
  border-width: 2px;
}

/* ---- Responsive ---- */

@media (min-width: 640px) {
  .reto1-layout {
    flex-direction: row;
    align-items: flex-start;
  }

  .components-tray {
    flex-direction: column;
    flex: 0 0 190px;
  }

  .board-wrap {
    flex: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}