/* ==========================================================================
   Fijate Tools - Guía de variedades de tomate: Huerta, cata y usos culinarios
   Estilos corporativos canónicos, tema claro / oscuro, radar SVG y controles táctiles
   ========================================================================== */

:root {
  /* Paleta tomate de huerta: rojo maduro, verde tomatera y oro solar */
  --tomato-950: #290808;
  --tomato-900: #450a0a;
  --tomato-800: #7f1d1d;
  --tomato-700: #991b1b;
  --tomato-600: #b91c1c;
  --tomato-500: #dc2626;
  --tomato-400: #ef4444;
  --tomato-300: #f87171;
  --tomato-200: #fca5a5;
  --tomato-100: #fee2e2;
  --tomato-50:  #fef2f2;

  --vine-800: #14532d;
  --vine-700: #15803d;
  --vine-600: #16a34a;
  --vine-500: #22c55e;
  --vine-100: #dcfce7;
  --vine-50:  #f0fdf4;

  --sun-gold: #eab308;
  --sun-gold-bg: #fefce8;

  /* Tema claro por defecto: Vine Sunlight */
  --bg-page: #faf8f5;
  --card-bg: #ffffff;
  --card-border: #e8e2d8;
  --card-border-hover: #cfc5b4;
  --card-shadow: 0 4px 20px -2px rgba(41, 8, 8, 0.05), 0 2px 6px -1px rgba(0, 0, 0, 0.03);
  --card-shadow-hover: 0 10px 25px -4px rgba(41, 8, 8, 0.1), 0 4px 10px -2px rgba(0, 0, 0, 0.04);

  --text-main: #241816;
  --text-muted: #5e4f4a;
  --text-subtle: #87766f;

  --primary: #dc2626;
  --primary-hover: #b91c1c;
  --primary-light: #fef2f2;
  --primary-text: #ffffff;

  --accent-green: #15803d;
  --accent-green-bg: #f0fdf4;

  --danger-bg: #fdf2f2;
  --danger-border: #f8b4b4;
  --danger-text: #991b1b;

  --warning-bg: #fffbeb;
  --warning-border: #fde68a;
  --warning-text: #92400e;

  --success-bg: #f0fdf4;
  --success-border: #bbf7d0;
  --success-text: #166534;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] {
  /* Tema oscuro: Midnight Vine */
  --bg-page: #0b100d;
  --card-bg: #121a15;
  --card-border: #1f2b23;
  --card-border-hover: #314438;
  --card-shadow: 0 4px 20px -2px rgba(0, 0, 0, 0.5);
  --card-shadow-hover: 0 10px 28px -4px rgba(0, 0, 0, 0.7);

  --text-main: #f3efe9;
  --text-muted: #a9a198;
  --text-subtle: #797168;

  --primary: #ef4444;
  --primary-hover: #f87171;
  --primary-light: #2c0e0e;
  --primary-text: #ffffff;

  --accent-green: #22c55e;
  --accent-green-bg: #0f2916;

  --danger-bg: #2d1012;
  --danger-border: #5a1e21;
  --danger-text: #fca5a5;

  --warning-bg: #2b1f09;
  --warning-border: #523c11;
  --warning-text: #fcd34d;

  --success-bg: #0e2714;
  --success-border: #1a4d27;
  --success-text: #86efac;
}

/* ==========================================================================
   Contenedor Principal y Layout Canónico
   ========================================================================== */
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.55;
  overflow-x: clip;
  width: 100%;
  max-width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', sans-serif;
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.25;
}

.mono {
  font-family: 'JetBrains Mono', monospace;
}

.tool-layout {
  max-width: 1200px;
  margin: 1.5rem auto 3rem;
  padding: 0 1rem;
  width: 100%;
  flex: 1;
}

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

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

/* ==========================================================================
   Hero Banner de la Herramienta
   ========================================================================== */
.tool-hero-banner {
  background: linear-gradient(135deg, var(--card-bg) 0%, var(--primary-light) 100%);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-xl);
  padding: 2rem 1.75rem;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
  box-shadow: var(--card-shadow);
}

.tool-hero-banner::before {
  content: "";
  position: absolute;
  top: -40px;
  right: -40px;
  width: 160px;
  height: 160px;
  background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
  opacity: 0.12;
  border-radius: 50%;
  pointer-events: none;
}

.hero-badge-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.85rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--primary);
}

.hero-title {
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  margin-bottom: 0.6rem;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 840px;
  line-height: 1.6;
}

/* ==========================================================================
   Navegación por Pestañas Principales
   ========================================================================== */
.main-tabs-nav {
  display: flex;
  gap: 0.5rem;
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 0.4rem;
  margin-bottom: 2rem;
  overflow-x: auto;
  scrollbar-width: none;
}

.main-tabs-nav::-webkit-scrollbar {
  display: none;
}

.tab-btn {
  flex: 1;
  min-width: 170px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-md);
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-family: 'Outfit', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--text-main);
  background-color: var(--bg-page);
}

.tab-btn.active {
  background-color: var(--primary);
  color: var(--primary-text);
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.25);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
  animation: fadeInTab 0.3s ease-out forwards;
}

@keyframes fadeInTab {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Tarjetas y Componentes Canónicos
   ========================================================================== */
.card-main {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  margin-bottom: 2rem;
  box-shadow: var(--card-shadow);
  transition: var(--transition);
}

.card-header {
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--card-border);
  padding-bottom: 1rem;
}

.card-title {
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.25rem;
}

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

/* ==========================================================================
   Controles Táctiles y Formularios Móviles
   ========================================================================== */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
  color: var(--text-main);
}

.form-select,
select {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  min-height: 44px;
  height: 44px;
  padding: 0 40px 0 1rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  color: var(--text-main);
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23dc2626' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
}

[data-theme="dark"] .form-select,
[data-theme="dark"] select {
  background-color: #1a251e;
  border-color: #2a3c30;
  color: #f3efe9;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23ef4444' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
}

.form-select option,
.form-select optgroup,
select option,
select optgroup {
  background-color: var(--card-bg);
  color: var(--text-main);
}

[data-theme="dark"] .form-select option,
[data-theme="dark"] .form-select optgroup,
[data-theme="dark"] select option,
[data-theme="dark"] select optgroup {
  background-color: #1a251e;
  color: #f3efe9;
}

.btn-primary {
  width: 100%;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  font-family: 'Outfit', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  background-color: var(--primary);
  color: var(--primary-text);
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  width: 100%;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  font-family: 'Outfit', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid var(--card-border);
  background-color: var(--card-bg);
  color: var(--text-main);
  cursor: pointer;
  transition: var(--transition);
}

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

/* ==========================================================================
   Pestaña 1: Selector Culinario del Tomate
   ========================================================================== */
.tomato-uses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.85rem;
  margin-bottom: 1.5rem;
}

.tomato-use-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 1rem;
  border-radius: var(--radius-lg);
  border: 1.5px solid var(--card-border);
  background-color: var(--card-bg);
  color: var(--text-main);
  cursor: pointer;
  transition: var(--transition);
  text-align: left;
  min-height: 90px;
}

.tomato-use-btn:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--card-shadow);
}

.tomato-use-btn.active {
  border-color: var(--primary);
  background: linear-gradient(135deg, var(--card-bg) 0%, var(--primary-light) 100%);
  box-shadow: 0 4px 15px rgba(220, 38, 38, 0.15);
}

/* ==========================================================================
   Pestaña 2: Comparador Sensorial y Radar SVG
   ========================================================================== */
.radar-section-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

@media (max-width: 850px) {
  .radar-section-grid {
    grid-template-columns: 1fr;
  }
}

.radar-wrapper {
  position: relative;
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
  aspect-ratio: 1 / 1;
}

.radar-svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.radar-legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 1rem;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.85rem;
  font-weight: 600;
}

.legend-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.specs-metrics-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.metric-card {
  background-color: var(--bg-page);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 0.85rem;
}

.metric-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.2rem;
}

.metric-val {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--primary);
}

/* ==========================================================================
   Pestaña 3: Laboratorio del Frío y Volátiles
   ========================================================================== */
.cold-science-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
}

.cold-science-card {
  background-color: var(--bg-page);
  border: 1.5px solid var(--card-border);
  border-radius: var(--radius-xl);
  padding: 1.35rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.cold-science-tip {
  background-color: var(--card-bg);
  border-left: 3px solid var(--vine-700);
  padding: 0.75rem 1rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.84rem;
  margin-top: 1rem;
}

/* ==========================================================================
   Modales Canónicos y Toast
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
}

.modal-backdrop.active {
  display: flex;
  animation: fadeInModal 0.2s ease-out forwards;
}

@keyframes fadeInModal {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-dialog {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-xl);
  max-width: 560px;
  width: 100%;
  padding: 1.75rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  position: relative;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--card-border);
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.3rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.toast-msg {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background-color: var(--text-main);
  color: var(--card-bg);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 600;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  display: none;
  z-index: 1100;
}

.toast-msg.show {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  animation: toastIn 0.3s ease-out forwards;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Responsividad Móvil
   ========================================================================== */
@media (max-width: 768px) {
  .tool-layout {
    margin: 1rem auto 2rem;
    padding: 0 0.75rem;
  }

  .card-main {
    padding: 1.25rem;
    border-radius: var(--radius-lg);
  }

  .tool-hero-banner {
    padding: 1.25rem;
  }

  .tomato-uses-grid {
    grid-template-columns: 1fr;
  }

  .specs-metrics-grid {
    grid-template-columns: 1fr;
  }
}