/* ============================================
   Financial Tools - Estilos (fintech institucional)
   Sin dependencias externas. Solo HTML/CSS.
   ============================================ */

/* --- Variables (para mantener consistencia) --- */
:root {
  --bg-dark: #0d1117;
  --bg-card: rgba(22, 27, 34, 0.75);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --accent: #58a6ff;
  --accent-hover: #79b8ff;
  --tag-bg: rgba(88, 166, 255, 0.15);
  --tag-text: #58a6ff;
  --overlay-bg: rgba(13, 17, 23, 0.82);
  --font-system: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}

/* --- Ticker tipo Bloomberg (precios en vivo) --- */
.ticker-wrap {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(13, 17, 23, 0.97);
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  overflow: hidden;
  max-height: 36px;
  display: flex;
  align-items: center;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

.ticker-scroll-wrap {
  flex: 1;
  overflow: hidden;
  min-width: 0;
}

.ticker-updated {
  flex-shrink: 0;
  padding: 0 0.75rem;
  font-size: 0.7rem;
  color: var(--text-secondary);
  white-space: nowrap;
  border-left: 1px solid var(--border-subtle);
}

.ticker-bar {
  display: flex;
  align-items: center;
  padding: 0.35rem 0;
  white-space: nowrap;
  animation: ticker-scroll 60s linear infinite;
}

.ticker-bar:hover {
  animation-play-state: paused;
}

.ticker-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0 1rem;
  color: var(--text-secondary);
  border-right: 1px solid var(--border-subtle);
}

.ticker-item .ticker-symbol {
  font-weight: 600;
  color: var(--text-primary);
}

.ticker-item .ticker-price {
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}

.ticker-item .ticker-pct {
  font-size: 0.7rem;
  font-variant-numeric: tabular-nums;
}

.ticker-item .ticker-pct.positive { color: #3fb950; }
.ticker-item .ticker-pct.negative { color: #f85149; }

@keyframes ticker-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

body.has-ticker { padding-top: 36px; }

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-system);
  color: var(--text-primary);
  background-color: var(--bg-dark);
  line-height: 1.5;
  /* Fondo: imagen NASA suavemente esfumada */
  background-image:
    linear-gradient(var(--overlay-bg), var(--overlay-bg)),
    url("assets/nebula-bg.png");
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  background-repeat: no-repeat;
}

/* --- Contenedor principal --- */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.5rem;
  padding-bottom: 6rem; /* espacio para footer fijo */
}

/* Home: más ancho para que las cards se expandan hacia los costados */
body:not(.page-interna) .container {
  max-width: 1280px;
}

/* --- Header (compartido Home e internas) --- */
.site-header {
  position: relative;
  text-align: center;
  padding: 2rem 2.5rem 1.5rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 2rem;
}

/* Home: título y bandera alineados, menos margen superior --- */
.site-header-home {
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  padding: 0.75rem 1rem 1rem;
  margin-bottom: 1.5rem;
}

.site-header-home .site-header-inner {
  flex: 1;
}

.site-header-home .site-header-inner .subtitle {
  margin-top: 0.2rem;
}

.site-header-home .header-flag {
  position: static;
  flex-shrink: 0;
  margin-left: 1rem;
}

/* Bandera Argentina (solo visual, arriba a la derecha en internas) --- */
.site-header:not(.site-header-home) .header-flag {
  position: absolute;
  top: 0.75rem;
  right: 0;
}

.header-flag {
  display: block;
  line-height: 0;
  opacity: 0.95;
}

.header-flag svg {
  display: block;
  width: 32px;
  height: 22px;
  border-radius: 2px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.site-header h1 {
  margin: 0;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.site-header .subtitle {
  margin: 0.35rem 0 0;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.12em;
}

/* Fila header interna: Volver + título + bandera alineados --- */
.page-header-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.page-header-row .back-link {
  margin-bottom: 0;
  flex-shrink: 0;
}

.page-header-row .site-header {
  flex: 1;
  margin-bottom: 0;
  min-width: 0;
}

/* Link "Volver" (solo en páginas internas) --- */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  padding: 0.5rem 0.9rem;
  color: var(--accent);
  background: rgba(88, 166, 255, 0.12);
  border: 1px solid rgba(88, 166, 255, 0.35);
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 600;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.back-link:hover {
  color: var(--accent-hover);
  background: rgba(88, 166, 255, 0.2);
  border-color: var(--accent);
}

/* Filtro de cards por etiqueta (Home) --- */
.cards-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.cards-filter-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-right: 0.25rem;
}

.cards-filter-btn {
  padding: 0.4rem 0.75rem;
  font-size: 0.85rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.cards-filter-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

.cards-filter-btn.active {
  background: var(--tag-bg);
  color: var(--tag-text);
  border-color: rgba(88, 166, 255, 0.35);
}

/* --- Grid de cards (Home) --- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
  padding: 0.5rem 0 3rem;
  max-width: 100%;
}

/* --- Card --- */
.card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  /* Glass effect muy sutil */
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  border-color: rgba(255, 255, 255, 0.12);
}

.card-title {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
}

.card-desc {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.45;
}

/* Tag tipo pill --- */
.card-tag {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--tag-text);
  background: var(--tag-bg);
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* --- Páginas internas: contenido placeholder --- */
.page-content {
  padding: 0.5rem 0 3rem;
}

.placeholder-block {
  text-align: center;
  padding: 3rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  margin-bottom: 2rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.placeholder-block h2 {
  margin: 0 0 0.5rem;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

.placeholder-block p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Bloque preparado para formulario --- */
.form-block {
  max-width: 920px;
  margin: 0 auto 2rem;
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* Grid 2 columnas para aprovechar ancho y evitar scroll --- */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem 1.5rem;
}

.form-grid .form-group {
  margin-bottom: 0;
}

.form-grid .form-actions {
  grid-column: 1 / -1;
  margin-top: 0.25rem;
}

.form-block .tool-title {
  margin: 0 0 0.35rem;
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-primary);
}

.form-block .tool-desc {
  margin: 0 0 1.25rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* --- Estilos para formularios (calculadoras futuras) --- */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

input[type="text"],
input[type="number"],
input[type="email"],
input[type="date"],
select,
textarea {
  width: 100%;
  padding: 0.6rem 0.85rem;
  font-family: var(--font-system);
  font-size: 0.95rem;
  color: var(--text-primary);
  background: rgba(13, 17, 23, 0.7);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.2);
}

input::placeholder,
textarea::placeholder {
  color: var(--text-secondary);
  opacity: 0.8;
}

button,
.btn {
  display: inline-block;
  padding: 0.6rem 1.25rem;
  font-family: var(--font-system);
  font-size: 0.95rem;
  font-weight: 500;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.2s ease, transform 0.1s ease;
}

button:hover,
.btn:hover {
  background: var(--accent-hover);
}

button:active,
.btn:active {
  transform: scale(0.98);
}

/* --- Sobre mí (placeholder) --- */
.about-section {
  margin-top: 2.5rem;
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.about-section h3 {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.about-section p {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* --- Resultado calculadora (SENEBI y otras) --- */
.result-block {
  margin-top: 1.5rem;
  padding: 1.25rem;
  background: rgba(13, 17, 23, 0.85);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  font-family: ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Consolas, monospace;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-primary);
  white-space: pre;
  min-height: 120px;
  overflow-x: auto;
}

.result-block.empty {
  color: var(--text-secondary);
}

.result-block.has-result {
  border-color: rgba(40, 167, 69, 0.4);
}

.result-block.error {
  border-color: rgba(248, 81, 73, 0.5);
  color: #f85149;
}

/* Tabla resultado Posición de garantías */
.result-table-wrap {
  margin-top: 1rem;
  overflow-x: auto;
}

.result-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
  color: var(--text-primary);
}

.result-table th,
.result-table td {
  padding: 0.4rem 0.6rem;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

.result-table th {
  font-weight: 600;
  color: var(--text-secondary);
}

.result-table tr.result-row-ok { color: #3fb950; }
.result-table tr.result-row-warning { color: #d29922; }
.result-table tr.result-row-excedido { color: #f85149; }

.result-actions .btn-excel {
  background: #238636;
}

.result-actions .btn-excel:hover {
  background: #2ea043;
}

/* Botones solo icono (copiar, exportar) */
.btn-icon {
  padding: 0.6rem;
  min-width: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-icon .icon-svg {
  display: block;
  flex-shrink: 0;
}

/* File input (mismo estilo que el resto) */
input[type="file"] {
  width: 100%;
  padding: 0.5rem 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Contenedor resultado + botón copiar */
.result-wrap {
  margin-top: 1.5rem;
}

.result-actions {
  margin-top: 0.75rem;
}

.result-actions .btn {
  min-width: 100px;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.form-actions button {
  min-width: 100px;
}

.btn-secondary {
  background: var(--border-subtle);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
}

.form-hint {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.result-summary {
  margin: 0 0 0.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.result-summary strong {
  color: var(--text-primary);
}

/* Arbitraje: gráfico de ratio */
.result-wrap-arbitraje {
  margin-top: 1.5rem;
}

.chart-wrap {
  margin-top: 1rem;
  padding: 1rem;
  background: rgba(13, 17, 23, 0.85);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
}

.chart-title {
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.form-grid-arbitraje .form-actions {
  align-items: flex-end;
}

/* Carry Trade */
.carry-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.mep-actual {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent);
}

.carry-summary {
  margin-bottom: 0.75rem;
}

.tool-desc-small {
  margin-top: -0.5rem;
  font-size: 0.85rem;
  opacity: 0.9;
}

.api-updated {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-left: auto;
}

/* Carry Trade: Dólar Breakeven */
.breakeven-section {
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
}

.breakeven-title {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
}

.breakeven-desc {
  margin: 0 0 0.75rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.mep-utilizado {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  color: var(--accent);
  font-weight: 500;
}

.breakeven-input-wrap {
  margin-bottom: 1rem;
}

.breakeven-input-wrap label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.breakeven-input-wrap input {
  padding: 0.5rem 0.75rem;
  font-size: 1rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  color: var(--text-primary);
  width: 100%;
  max-width: 12rem;
}

.breakeven-input-wrap input:focus {
  outline: none;
  border-color: var(--accent);
}

/* Links placeholder (LinkedIn / GitHub) --- */
.links-placeholder {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.links-placeholder a {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.links-placeholder a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* --- Footer (contacto) — fijo al pie de la pantalla --- */
.site-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  margin: 0;
  padding: 0.75rem 1rem;
  background: var(--bg-dark);
  border-top: 1px solid var(--border-subtle);
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-secondary);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
}

.site-footer .footer-contact {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.25rem;
}

.site-footer a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

.site-footer a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

.site-footer .footer-credits {
  margin: 0.75rem 0 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.site-footer .flag-ar {
  font-style: normal;
}

/* --- Links útiles (Home) --- */
.links-utiles {
  margin-top: 0.75rem;
  margin-bottom: 0;
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.links-utiles-title {
  margin: 0 0 1rem;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.links-utiles-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.links-utiles-list a {
  color: var(--accent);
  text-decoration: none;
}

.links-utiles-list a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* --- Responsive (móvil y tablet) --- */
@media (max-width: 768px) {
  .container {
    padding: 1rem;
    padding-bottom: 5.5rem;
  }

  body:not(.page-interna) .container {
    max-width: 100%;
  }

  .site-header {
    padding: 1.5rem 0.5rem 1rem;
  }

  .site-header h1 {
    font-size: 1.5rem;
  }

  .cards-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
    padding-bottom: 2rem;
  }

  .card {
    padding: 1.25rem;
    min-height: auto;
  }

  .form-block {
    max-width: 100%;
    padding: 1rem;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .form-group label {
    font-size: 0.95rem;
  }

  .form-actions button,
  .btn {
    min-height: 44px;
    padding: 0.6rem 1.2rem;
    font-size: 1rem;
  }

  .back-link {
    padding: 0.6rem 1rem;
    font-size: 0.95rem;
  }

  .links-utiles {
    padding: 1rem;
  }

  .links-utiles-list {
    flex-direction: column;
    gap: 0.75rem;
  }

  .links-utiles-list a {
    display: block;
    padding: 0.4rem 0;
  }

  .site-footer {
    padding: 0.6rem 0.75rem;
    font-size: 0.85rem;
  }

  .site-footer .footer-contact {
    gap: 0.75rem;
  }

  .site-footer .footer-credits {
    margin-top: 0.5rem;
    font-size: 0.8rem;
  }

  .result-table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .result-table {
    font-size: 0.75rem;
  }

  .result-table th,
  .result-table td {
    padding: 0.4rem 0.5rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0.75rem;
    padding-bottom: 5rem;
  }

  .site-header h1 {
    font-size: 1.35rem;
  }

  .card-title {
    font-size: 1.05rem;
  }

  .card-desc {
    font-size: 0.85rem;
  }
}