/**
 * style.css - Dibuja la Tendencia: Adivina la evolución de gráficas históricas
 * fijate.com/tools/dibuja-la-tendencia/
 */

:root {
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Tema claro por defecto */
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --bg-subtle: #f1f5f9;
  --border-card: #e2e8f0;
  --border-focus: #3b82f6;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-dim: #94a3b8;

  --accent-cyan: #0284c7;
  --accent-cyan-bg: #e0f2fe;
  --accent-amber: #d97706;
  --accent-amber-bg: #fef3c7;
  --accent-green: #059669;
  --accent-green-bg: #d1fae5;
  --accent-red: #dc2626;

  --canvas-bg: #ffffff;
  --canvas-border: #cbd5e1;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
}

[data-theme="dark"],
.dark {
  --bg-page: #0b0f17;
  --bg-card: #131b2a;
  --bg-subtle: #1e293b;
  --border-card: #1e293b;
  --border-focus: #60a5fa;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --accent-cyan: #38bdf8;
  --accent-cyan-bg: rgba(56, 189, 248, 0.15);
  --accent-amber: #f59e0b;
  --accent-amber-bg: rgba(245, 158, 11, 0.15);
  --accent-green: #10b981;
  --accent-green-bg: rgba(16, 185, 129, 0.15);
  --accent-red: #f87171;

  --canvas-bg: #0f172a;
  --canvas-border: #334155;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 20px -3px rgba(0, 0, 0, 0.5);
}

/* Base obligatoria */
body {
  font-family: var(--font-main);
  background-color: var(--bg-page);
  color: var(--text-main);
  margin: 0;
  padding: 0;
  overflow-x: clip;
  width: 100%;
  max-width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6,
.brand-title,
.section-title,
.trend-title,
.result-heading {
  font-family: var(--font-heading);
  letter-spacing: -0.015em;
  font-weight: 700;
  color: var(--text-main);
}

.mono, code, .accuracy-digits {
  font-family: var(--font-mono);
}

/* Layout AdSense y contención */
.tool-layout {
  max-width: 1200px;
  margin: 1.5rem auto 3rem;
  padding: 0 1rem;
  box-sizing: border-box;
  flex: 1 0 auto;
  width: 100%;
}

.tool-with-sidebar {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  width: 100%;
}

.tool-main-content {
  flex: 1 1 0%;
  min-width: 0;
  width: 100%;
}

/* Tarjeta principal */
.card-main {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 2rem;
  box-sizing: border-box;
}

@media (max-width: 640px) {
  .card-main {
    padding: 1rem;
    border-radius: 12px;
  }
}

/* Barra superior de herramientas y modos */
.game-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-card);
}

.mode-selector-segmented {
  display: inline-flex;
  background: var(--bg-subtle);
  padding: 3px;
  border-radius: 10px;
  border: 1px solid var(--border-card);
}

.segmented-btn {
  background: transparent;
  border: none;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  border-radius: 7px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.segmented-btn:hover {
  color: var(--text-main);
}

.segmented-btn.active {
  background: var(--bg-card);
  color: var(--accent-cyan);
  box-shadow: var(--shadow-sm);
}

.game-utility-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-game-icon {
  background: var(--bg-subtle);
  border: 1px solid var(--border-card);
  color: var(--text-main);
  width: 38px;
  height: 38px;
  border-radius: 9px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-game-icon:hover {
  background: var(--border-card);
  transform: translateY(-1px);
}

/* Barra de navegación secundaria de modo libre */
.free-mode-nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.btn-pill {
  background: var(--bg-subtle);
  border: 1px solid var(--border-card);
  color: var(--text-main);
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 20px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.15s ease;
}

.btn-pill:hover {
  background: var(--accent-cyan-bg);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* Cabecera del reto actual */
.trend-header-box {
  margin-bottom: 1.25rem;
}

.trend-badge-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.category-tag {
  background: var(--accent-cyan-bg);
  color: var(--accent-cyan);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
}

.trend-source-text {
  font-size: 0.8rem;
  color: var(--text-dim);
}

.trend-title {
  font-size: 1.45rem;
  margin: 0 0 0.5rem 0;
  line-height: 1.25;
}

@media (min-width: 640px) {
  .trend-title {
    font-size: 1.75rem;
  }
}

.trend-prompt-box {
  background: var(--bg-subtle);
  border-left: 4px solid var(--accent-amber);
  padding: 0.85rem 1.1rem;
  border-radius: 0 8px 8px 0;
  font-size: 0.975rem;
  line-height: 1.5;
  color: var(--text-main);
}

/* Contenedor del Canvas */
.canvas-interactive-wrapper {
  position: relative;
  width: 100%;
  background: var(--canvas-bg);
  border: 1px solid var(--canvas-border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.04);
  touch-action: none;
}

.canvas-progress-bar-container {
  position: relative;
  width: 100%;
  height: 6px;
  background: var(--bg-subtle);
  border-bottom: 1px solid var(--border-card);
}

.canvas-progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #f59e0b, #10b981);
  transition: width 0.15s ease-out;
}

#trend-canvas {
  display: block;
  width: 100%;
  height: 420px;
  cursor: crosshair;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

@media (max-width: 520px) {
  #trend-canvas {
    height: 330px;
  }
}

/* Barra de controles de dibujo */
.drawing-controls-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.progress-guidance-text {
  font-size: 0.875rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.buttons-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

@media (max-width: 640px) {
  .drawing-controls-bar {
    flex-direction: column;
    align-items: stretch;
  }
  .buttons-group {
    width: 100%;
  }
  .buttons-group .btn-action {
    flex: 1 1 0%;
  }
}

.btn-action {
  min-height: 44px;
  padding: 0.65rem 1.25rem;
  border-radius: 9px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all 0.2s ease;
  border: none;
}

.btn-secondary {
  background: var(--bg-subtle);
  border: 1px solid var(--border-card);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: var(--border-card);
}

.btn-primary {
  background: #0284c7;
  color: #ffffff;
}

.btn-primary:hover:not(:disabled) {
  background: #0369a1;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.35);
  transform: translateY(-1px);
}

.btn-primary:disabled {
  background: var(--bg-subtle);
  border: 1px solid var(--border-card);
  color: var(--text-dim);
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-primary.pulse {
  animation: pulseGlow 2s infinite;
}

@keyframes pulseGlow {
  0% {
    box-shadow: 0 0 0 0 rgba(2, 132, 199, 0.7);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(2, 132, 199, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(2, 132, 199, 0);
  }
}

/* Spinner sutil */
.spinner-small {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ====================================================
   TARJETA DE RESULTADOS Y REVELACIÓN HISTÓRICA
==================================================== */
.result-card {
  margin-top: 1.75rem;
  background: var(--bg-subtle);
  border: 1px solid var(--border-card);
  border-radius: 14px;
  padding: 1.5rem;
  animation: slideFadeUp 0.4s ease-out;
}

@keyframes slideFadeUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.result-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.result-score-block {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
}

.accuracy-digits {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1;
  color: var(--accent-green);
}

.accuracy-label {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
}

.accuracy-badge {
  display: inline-block;
  padding: 0.4rem 0.85rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 700;
}

.badge-master {
  background: var(--accent-green-bg);
  color: var(--accent-green);
  border: 1px solid var(--accent-green);
}

.badge-great {
  background: var(--accent-cyan-bg);
  color: var(--accent-cyan);
  border: 1px solid var(--accent-cyan);
}

.badge-good {
  background: var(--accent-amber-bg);
  color: var(--accent-amber);
  border: 1px solid var(--accent-amber);
}

.badge-learning {
  background: rgba(239, 68, 68, 0.12);
  color: var(--accent-red);
  border: 1px solid var(--accent-red);
}

/* Barra de precisión */
.accuracy-bar-track {
  width: 100%;
  height: 8px;
  background: var(--border-card);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 1.5rem;
}

.accuracy-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--accent-green);
  transition: width 1s cubic-bezier(0.1, 0.9, 0.2, 1);
}

/* Comparativa de valores finales */
.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

@media (max-width: 480px) {
  .comparison-grid {
    grid-template-columns: 1fr;
  }
}

.comparison-box {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 10px;
  padding: 1rem;
}

.comparison-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.35rem;
}

.user-comparison-box {
  border-left: 4px solid var(--accent-amber);
}

.user-comparison-box .comparison-label {
  color: var(--accent-amber);
}

.real-comparison-box {
  border-left: 4px solid var(--accent-green);
}

.real-comparison-box .comparison-label {
  color: var(--accent-green);
}

.comparison-val {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
}

/* Relato histórico contextual */
.reveal-story-box {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 12px;
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.story-heading {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.05rem;
  margin: 0 0 0.6rem 0;
  color: var(--text-main);
}

.story-heading svg {
  color: var(--accent-cyan);
}

.story-text {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-main);
  margin: 0;
}

/* Botones de compartir y siguiente */
.result-actions-bar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  flex-wrap: wrap;
}

@media (max-width: 540px) {
  .result-actions-bar {
    flex-direction: column;
    align-items: stretch;
  }
  .result-actions-bar .btn-action {
    width: 100%;
  }
}

.btn-share {
  background: #10b981;
  color: #ffffff;
}

.btn-share:hover {
  background: #059669;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.35);
  transform: translateY(-1px);
}

/* ====================================================
   MODALES ACCESIBLES
==================================================== */
.trend-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.trend-modal-overlay.open {
  display: flex;
}

.trend-modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 16px;
  max-width: 600px;
  width: 100%;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  animation: modalPop 0.25s cubic-bezier(0.1, 0.9, 0.2, 1);
}

.trend-modal-card-large {
  max-width: 820px;
}

@keyframes modalPop {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.trend-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-card);
}

.trend-modal-title {
  margin: 0;
  font-size: 1.25rem;
}

.btn-close-modal {
  background: transparent;
  border: none;
  color: var(--text-muted);
  width: 32px;
  height: 32px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-close-modal:hover {
  background: var(--bg-subtle);
  color: var(--text-main);
}

.trend-modal-body {
  padding: 1.5rem;
  overflow-y: auto;
  line-height: 1.6;
}

/* Contenido modal de ayuda */
.help-steps-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.help-step-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.help-step-num {
  background: var(--accent-cyan-bg);
  color: var(--accent-cyan);
  width: 34px;
  height: 34px;
  border-radius: 50%;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1rem;
}

.help-step-text h4 {
  margin: 0 0 0.25rem 0;
  font-size: 1rem;
}

.help-step-text p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Contenido modal de estadísticas */
.stats-grid-boxes {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 1rem;
}

@media (min-width: 480px) {
  .stats-grid-boxes {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat-box-item {
  background: var(--bg-subtle);
  border: 1px solid var(--border-card);
  border-radius: 10px;
  padding: 1rem;
  text-align: center;
}

.stat-box-val {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--accent-cyan);
  line-height: 1.1;
  margin-bottom: 0.35rem;
}

.stat-box-lbl {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
}

/* Modal de catálogo */
.catalog-filters-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.catalog-filter-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-card);
  color: var(--text-muted);
  padding: 0.35rem 0.75rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.catalog-filter-btn.active,
.catalog-filter-btn:hover {
  background: var(--accent-cyan);
  color: #ffffff;
  border-color: var(--accent-cyan);
}

.catalog-grid-items {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

@media (min-width: 580px) {
  .catalog-grid-items {
    grid-template-columns: 1fr 1fr;
  }
}

.catalog-item-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 10px;
  padding: 1rem;
  text-align: left;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
}

.catalog-item-card:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.catalog-item-card.active {
  border-color: var(--accent-cyan);
  background: var(--accent-cyan-bg);
}

.catalog-item-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.4rem;
}

.catalog-item-cat {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent-cyan);
  text-transform: uppercase;
}

.catalog-item-years {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

.catalog-item-title {
  margin: 0 0 0.35rem 0;
  font-size: 0.95rem;
  color: var(--text-main);
  line-height: 1.3;
}

.catalog-item-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin: 0 0 0.5rem 0;
  flex-grow: 1;
}

.catalog-item-cut {
  font-size: 0.78rem;
  color: var(--accent-amber);
}

/* Toast flotante */
.toast-bubble {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(30px);
  background: #0f172a;
  color: #ffffff;
  padding: 0.75rem 1.4rem;
  border-radius: 30px;
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  z-index: 10000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
  pointer-events: none;
}

.toast-bubble.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  visibility: visible;
}