/**
 * Fijate Tools - Calculadora de dosis de siembra para cereal y leguminosas
 * Estilos canónicos, responsive mobile-first, alta visibilidad tractor y temas claro/oscuro
 */

:root {
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-heading: 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Colores tema claro (por defecto) */
  --bg-app: #f8fafc;
  --card-bg: #ffffff;
  --card-border: #e2e8f0;
  --card-hover-border: #cbd5e1;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;

  /* Acentos agronómicos (verde campo / dorado cereal) */
  --accent-primary: #15803d; /* Verde agronómico */
  --accent-primary-hover: #166534;
  --accent-light: #f0fdf4;
  --accent-border: #bbf7d0;

  --accent-gold: #b45309; /* Dorado espiga */
  --accent-gold-light: #fef3c7;
  --accent-gold-border: #fde68a;

  --accent-blue: #0284c7;
  --accent-blue-light: #f0f9ff;
  --accent-blue-border: #bae6fd;

  --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, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

/* Tema oscuro / Midnight Slate */
[data-theme="dark"] {
  --bg-app: #0b0f17;
  --card-bg: #131b2a;
  --card-border: #223049;
  --card-hover-border: #334668;
  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-light: #64748b;

  --accent-primary: #22c55e;
  --accent-primary-hover: #16a34a;
  --accent-light: rgba(34, 197, 94, 0.12);
  --accent-border: rgba(34, 197, 94, 0.28);

  --accent-gold: #f59e0b;
  --accent-gold-light: rgba(245, 158, 11, 0.12);
  --accent-gold-border: rgba(245, 158, 11, 0.28);

  --accent-blue: #38bdf8;
  --accent-blue-light: rgba(56, 189, 248, 0.12);
  --accent-blue-border: rgba(56, 189, 248, 0.28);

  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 8px -1px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 20px -3px rgba(0, 0, 0, 0.5);
}

/* Base de layout */
body {
  margin: 0;
  padding: 0;
  font-family: var(--font-main);
  background-color: var(--bg-app);
  color: var(--text-main);
  line-height: 1.5;
  overflow-x: clip;
  width: 100%;
  max-width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

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

.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%;
}

/* Tipografía de títulos */
h1, h2, h3, h4, .font-heading {
  font-family: var(--font-heading);
  letter-spacing: -0.02em;
  font-weight: 700;
  margin-top: 0;
}

.text-mono {
  font-family: var(--font-mono);
}

/* Barra de herramientas superior */
.tool-header-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--card-border);
}

.tool-intro-title {
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
  color: var(--text-main);
}

.tool-intro-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin: 0;
}

.tool-top-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

/* Botón modo tractor */
.btn-tractor-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--card-bg);
  border: 1.5px solid var(--card-border);
  color: var(--text-main);
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 40px;
}

.btn-tractor-toggle:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.btn-tractor-toggle.is-active {
  background-color: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #ffffff;
  box-shadow: 0 0 12px rgba(34, 197, 94, 0.4);
}

/* Tarjetas principales */
.app-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-fast);
}

.app-card:hover {
  border-color: var(--card-hover-border);
}

.card-header-flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.card-title-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.card-icon-box {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--accent-light);
  color: var(--accent-primary);
  border: 1px solid var(--accent-border);
}

.card-title {
  font-size: 1.2rem;
  margin: 0;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background-color: var(--accent-gold-light);
  color: var(--accent-gold);
  border: 1px solid var(--accent-gold-border);
}

/* Selector de cultivo y régimen */
.crop-selector-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 640px) {
  .crop-selector-grid {
    grid-template-columns: 1.4fr 1fr;
  }
}

.field-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.4rem;
}

.select-wrapper {
  position: relative;
  width: 100%;
}

.select-control {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  height: 44px;
  padding: 0 42px 0 1rem;
  border: 1.5px solid var(--card-border);
  border-radius: var(--radius-md);
  background-color: var(--card-bg);
  color: var(--text-main);
  font-size: 0.95rem;
  font-family: inherit;
  font-weight: 500;
  appearance: none;
  cursor: pointer;
  outline: none;
  text-overflow: ellipsis;
  white-space: nowrap;
  overflow: hidden;
  box-sizing: border-box;
}

.select-control:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.select-arrow {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--text-muted);
}

/* Botones de régimen hídrico */
.regime-toggle-group {
  display: flex;
  gap: 0.4rem;
  background-color: var(--bg-app);
  padding: 0.3rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--card-border);
}

.btn-regime {
  flex: 1 1 0%;
  min-width: 0;
  height: 38px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  padding: 0 0.5rem;
}

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

.btn-regime.is-active {
  background-color: var(--card-bg);
  color: var(--accent-primary);
  box-shadow: var(--shadow-sm);
  font-weight: 700;
}

.crop-meta-box {
  background-color: var(--bg-app);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  margin-top: 1rem;
  font-size: 0.86rem;
  color: var(--text-muted);
}

.crop-botanical-name {
  font-style: italic;
  font-weight: 600;
  color: var(--text-main);
}

/* Grid de formulario de dosis */
.dose-form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 600px) {
  .dose-form-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .dose-form-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.input-with-action {
  display: flex;
  gap: 0.4rem;
  align-items: center;
}

.input-control {
  flex: 1 1 0%;
  width: 0;
  min-width: 0;
  height: 44px;
  padding: 0 0.85rem;
  border: 1.5px solid var(--card-border);
  border-radius: var(--radius-md);
  background-color: var(--card-bg);
  color: var(--text-main);
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 600;
  box-sizing: border-box;
  outline: none;
}

.input-control:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.btn-input-action {
  height: 44px;
  padding: 0 0.85rem;
  border: 1.5px solid var(--card-border);
  border-radius: var(--radius-md);
  background-color: var(--bg-app);
  color: var(--text-main);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: all var(--transition-fast);
}

.btn-input-action:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.field-help-text {
  font-size: 0.78rem;
  color: var(--text-light);
  margin-top: 0.35rem;
  display: block;
}

/* HERO CARD DE RESULTADOS DE DOSIS */
.hero-results-card {
  background: linear-gradient(135deg, rgba(21, 128, 61, 0.08) 0%, rgba(2, 132, 199, 0.04) 100%);
  border: 2px solid var(--accent-primary);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
}

[data-theme="dark"] .hero-results-card {
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.12) 0%, rgba(56, 189, 248, 0.06) 100%);
  border-color: var(--accent-primary);
}

.hero-kpi-main {
  text-align: center;
  margin-bottom: 1.5rem;
}

.hero-kpi-tag {
  display: inline-block;
  text-transform: uppercase;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--accent-primary);
  background-color: var(--accent-light);
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--accent-border);
  margin-bottom: 0.5rem;
}

.hero-kpi-value-row {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.5rem;
}

.hero-kpi-digits {
  font-family: var(--font-mono);
  font-size: 3.6rem;
  font-weight: 800;
  line-height: 1;
  color: var(--text-main);
}

.hero-kpi-unit {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent-primary);
}

/* Grid de métricas secundarias */
.secondary-kpis-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

@media (min-width: 768px) {
  .secondary-kpis-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.kpi-tile {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 1rem;
  text-align: center;
}

.kpi-tile-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 0.35rem;
  display: block;
}

.kpi-tile-value {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
  display: block;
}

.kpi-tile-sub {
  font-size: 0.72rem;
  color: var(--text-light);
  margin-top: 0.25rem;
}

/* Caja de alerta de dosis */
.dose-alert-box {
  margin-top: 1.25rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  line-height: 1.45;
}

.alert-warning {
  background-color: var(--accent-gold-light);
  border: 1px solid var(--accent-gold-border);
  color: #92400e;
}

[data-theme="dark"] .alert-warning {
  color: #fcd34d;
}

/* SECCIÓN CALIBRACIÓN DE SEMBRADORA */
.seeder-settings-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

@media (min-width: 600px) {
  .seeder-settings-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .seeder-settings-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.test-switch-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--card-border);
  padding-bottom: 0.5rem;
}

.btn-test-type {
  background: transparent;
  border: none;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.btn-test-type.is-active {
  background-color: var(--accent-blue-light);
  color: var(--accent-blue);
  font-weight: 700;
}

.test-highlight-card {
  background-color: var(--accent-blue-light);
  border: 1.5px solid var(--accent-blue-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1rem;
}

.test-highlight-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.test-step-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.25rem;
}

.test-step-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}

.tray-weight-big {
  text-align: right;
}

.tray-weight-digits {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent-blue);
  line-height: 1;
}

.tray-weight-unit {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  display: block;
}

/* SECCIÓN LOGÍSTICA Y COSTES */
.logistics-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 600px) {
  .logistics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .logistics-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.savings-banner {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.12) 0%, rgba(21, 128, 61, 0.08) 100%);
  border: 1.5px solid var(--accent-gold-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-top: 1.25rem;
}

.savings-digits {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent-gold);
}

/* BARRA DE ACCIONES INFERIOR */
.tool-action-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.btn-action-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--accent-primary);
  color: #ffffff;
  border: none;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  min-height: 44px;
  transition: background-color var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.btn-action-primary:hover {
  background-color: var(--accent-primary-hover);
}

.btn-action-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--card-bg);
  color: var(--text-main);
  border: 1.5px solid var(--card-border);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  min-height: 44px;
  transition: all var(--transition-fast);
}

.btn-action-secondary:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

/* MODO TRACTOR (ALTA VISIBILIDAD) */
body.tractor-mode-active {
  --bg-app: #000000;
  --card-bg: #090e17;
  --card-border: #1e293b;
  --text-main: #ffffff;
  --text-muted: #cbd5e1;
}

body.tractor-mode-active .hero-results-card {
  background: #04180c;
  border: 3px solid #22c55e;
  box-shadow: 0 0 25px rgba(34, 197, 94, 0.35);
}

body.tractor-mode-active .hero-kpi-digits {
  font-size: 4.5rem;
  color: #4ade80;
  text-shadow: 0 0 10px rgba(74, 222, 128, 0.4);
}

body.tractor-mode-active .tray-weight-digits {
  font-size: 3rem;
  color: #38bdf8;
  text-shadow: 0 0 10px rgba(56, 189, 248, 0.4);
}

body.tractor-mode-active .kpi-tile-value {
  font-size: 1.8rem;
  color: #ffffff;
}

/* GUÍA AGRONÓMICA Y ACORDEÓN SEO */
.agronomy-guide-section {
  margin-top: 2rem;
  border-top: 1px solid var(--card-border);
  padding-top: 2rem;
}

.guide-article {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  margin-bottom: 1.5rem;
}

.guide-article h2 {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
  color: var(--text-main);
}

.guide-article h3 {
  font-size: 1.15rem;
  margin-top: 1.25rem;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.guide-article p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1rem;
}

.formula-box {
  background-color: var(--bg-app);
  border-left: 4px solid var(--accent-primary);
  padding: 1rem 1.25rem;
  margin: 1rem 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--text-main);
  overflow-x: auto;
}

/* MODALES ACCESIBLES SIN WINDOW.ALERT */
.modal-container {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal-container.is-active {
  display: flex;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  z-index: 1001;
}

.modal-content-card {
  position: relative;
  z-index: 1002;
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-xl);
  max-width: 540px;
  width: 100%;
  padding: 1.75rem;
  box-shadow: var(--shadow-lg);
  max-height: 90vh;
  overflow-y: auto;
  box-sizing: border-box;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--card-border);
  padding-bottom: 0.75rem;
}

.modal-title {
  font-size: 1.2rem;
  margin: 0;
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  line-height: 1;
  border-radius: var(--radius-sm);
}

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

.modal-body {
  margin-bottom: 1.5rem;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* ESTILOS DE IMPRESIÓN */
@media print {
  body {
    background: #ffffff !important;
    color: #000000 !important;
  }

  .app-header,
  .tools-ad-banner-section,
  .tool-ad-sidebar,
  .fijate-footer,
  .tool-action-bar,
  .btn-tractor-toggle,
  .btn-input-action,
  .btn-regime {
    display: none !important;
  }

  .tool-layout {
    max-width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
  }

  .hero-results-card,
  .app-card {
    border: 1px solid #000000 !important;
    box-shadow: none !important;
    break-inside: avoid;
    page-break-inside: avoid;
  }

  .hero-kpi-digits,
  .tray-weight-digits {
    color: #000000 !important;
  }
}