/* =========================================================
   RecetasConAire — hoja de estilos global
   Paleta vibrante: coral + teal + amarillo + toques por categoría
   ========================================================= */

:root {
  --color-bg: #FFF8F0;
  --color-bg-alt: #FFEDD8;
  --color-text: #231942;
  --color-text-muted: #6B5F7A;
  --color-primary: #FF5A3C;
  --color-primary-dark: #E8431F;
  --color-accent: #00C2A8;
  --color-accent-dark: #009E88;
  --color-yellow: #FFC93C;
  --color-pink: #FF4D8D;
  --color-purple: #9B5DE5;
  --color-blue: #00B4D8;
  --color-green: #2ECC71;
  --color-border: #FFE1C2;
  --color-white: #FFFFFF;
  --cat-color: var(--color-primary);
  --radius: 18px;
  --shadow: 0 8px 24px rgba(35, 25, 66, 0.08);
  --shadow-hover: 0 18px 34px rgba(35, 25, 66, 0.16);
  --max-width: 1120px;
  --font-heading: 'Poppins', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.65;
  font-size: 17px;
}

img { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: 1.22;
  color: var(--color-text);
  margin: 0 0 0.6em;
}

h1 { font-size: clamp(2rem, 4.5vw, 2.9rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1.1em; }

a { color: var(--color-primary-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* Skip link para accesibilidad */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-primary);
  color: #fff;
  padding: 10px 16px;
  z-index: 1000;
  border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ---------- Animaciones de scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- Header ---------- */
.site-header {
  background: rgba(255, 248, 240, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}

.logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo:hover { text-decoration: none; }
.logo::before {
  content: "🔥";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-yellow));
  font-size: 1rem;
  box-shadow: 0 4px 10px rgba(255, 90, 60, 0.35);
}
.logo span { color: var(--color-primary); }

.nav-toggle {
  display: none;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 8px 10px;
  font-size: 1.3rem;
  cursor: pointer;
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
}

.main-nav a {
  position: relative;
  color: var(--color-text);
  font-weight: 600;
  font-size: 0.98rem;
  padding-bottom: 4px;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-yellow));
  transition: right 0.25s ease;
}
.main-nav a:hover,
.main-nav a[aria-current="page"] { color: var(--color-primary-dark); text-decoration: none; }
.main-nav a:hover::after,
.main-nav a[aria-current="page"]::after { right: 0; }

@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .main-nav {
    display: none;
    width: 100%;
  }
  .main-nav.is-open { display: block; animation: slideDown 0.25s ease; }
  .site-header .container { flex-wrap: wrap; }
  .main-nav ul {
    flex-direction: column;
    gap: 0;
    border-top: 1px solid var(--color-border);
    margin-top: 12px;
  }
  .main-nav a {
    display: block;
    padding: 12px 4px;
    border-bottom: 1px solid var(--color-border);
  }
  .main-nav a::after { display: none; }
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, var(--color-bg-alt), var(--color-bg) 60%);
  padding: 64px 0 56px;
  text-align: center;
  isolation: isolate;
}
.hero::before,
.hero::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(10px);
  opacity: 0.5;
  z-index: -1;
  animation: float 9s ease-in-out infinite;
}
.hero::before {
  width: 220px; height: 220px;
  background: radial-gradient(circle, var(--color-yellow), transparent 70%);
  top: -60px; left: 8%;
}
.hero::after {
  width: 280px; height: 280px;
  background: radial-gradient(circle, var(--color-accent), transparent 70%);
  bottom: -100px; right: 6%;
  animation-delay: -4s;
}
@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-18px) scale(1.06); }
}
@media (prefers-reduced-motion: reduce) {
  .hero::before, .hero::after { animation: none; }
}
.hero p.lead {
  max-width: 640px;
  margin: 0 auto 1.4em;
  color: var(--color-text-muted);
  font-size: 1.12rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }

.btn {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.98rem;
  border: none;
  cursor: pointer;
  box-shadow: 0 10px 20px rgba(255, 90, 60, 0.3);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.btn:hover {
  background: var(--color-primary-dark);
  text-decoration: none;
  transform: translateY(-3px);
  box-shadow: 0 14px 26px rgba(255, 90, 60, 0.38);
}
.btn-outline {
  background: transparent;
  color: var(--color-primary-dark);
  border: 2px solid var(--color-primary);
  box-shadow: none;
}
.btn-outline:hover { background: var(--color-primary); color: #fff; }

.btn-surprise {
  background: linear-gradient(135deg, var(--color-purple), var(--color-pink));
  box-shadow: 0 10px 22px rgba(155, 93, 229, 0.35);
  animation: pulse 2.4s ease-in-out infinite;
}
.btn-surprise:hover { background: linear-gradient(135deg, var(--color-pink), var(--color-purple)); }
@keyframes pulse {
  0%, 100% { box-shadow: 0 10px 22px rgba(155, 93, 229, 0.35); }
  50% { box-shadow: 0 10px 30px rgba(255, 77, 141, 0.5); }
}
@media (prefers-reduced-motion: reduce) {
  .btn-surprise { animation: none; }
}

/* ---------- Secciones / grids ---------- */
.section { padding: 56px 0; }
.section-alt { background: var(--color-bg-alt); }

.section-heading { text-align: center; margin-bottom: 36px; }
.section-heading p { color: var(--color-text-muted); }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 26px;
}

.card {
  --cat-color: var(--color-primary);
  position: relative;
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  border-top: 5px solid var(--cat-color);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.card:hover {
  transform: translateY(-8px) rotate(-0.4deg);
  box-shadow: var(--shadow-hover);
}

/* Colores por categoría */
.card.cat-pollo, .article-header.cat-pollo { --cat-color: #FF5A3C; }
.card.cat-verduras, .article-header.cat-verduras,
.card.cat-vegano, .article-header.cat-vegano { --cat-color: #2ECC71; }
.card.cat-postres, .article-header.cat-postres,
.card.cat-snacks, .article-header.cat-snacks { --cat-color: #FF4D8D; }
.card.cat-pescado, .article-header.cat-pescado,
.card.cat-desayuno, .article-header.cat-desayuno { --cat-color: #00B4D8; }
.card.cat-saludable, .article-header.cat-saludable,
.card.cat-keto, .article-header.cat-keto { --cat-color: #9B5DE5; }
.card.cat-guia, .article-header.cat-guia,
.card.cat-tabla, .article-header.cat-tabla,
.card.cat-comparativa, .article-header.cat-comparativa,
.card.cat-limpieza, .article-header.cat-limpieza,
.card.cat-explorar, .article-header.cat-explorar { --cat-color: #00C2A8; }

.card-img {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: var(--color-bg-alt);
  display: block;
  overflow: hidden;
}
.card-img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.4s ease; }
.card:hover .card-img img { transform: scale(1.08); }

.card-body { padding: 18px 20px 22px; flex: 1; display: flex; flex-direction: column; }
.card-body h3 { margin-bottom: 8px; }
.card-body p { color: var(--color-text-muted); font-size: 0.96rem; flex: 1; }
.card-tag {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--cat-color, var(--color-accent));
  margin-bottom: 8px;
}
.card-link {
  margin-top: 12px;
  font-weight: 700;
  color: var(--cat-color, var(--color-primary-dark));
}

/* ---------- Filtros de categoría (catálogo) ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 32px;
}
.filter-pill {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.88rem;
  padding: 9px 18px;
  border-radius: 999px;
  border: 2px solid var(--color-border);
  background: var(--color-white);
  color: var(--color-text);
  cursor: pointer;
  transition: all 0.2s ease;
}
.filter-pill:hover { border-color: var(--color-primary); color: var(--color-primary-dark); }
.filter-pill.active {
  background: linear-gradient(135deg, var(--color-primary), var(--color-yellow));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 8px 16px rgba(255, 90, 60, 0.3);
}
.card[hidden] { display: none; }

/* ---------- Artículo ---------- */
.article-header { padding: 44px 0 20px; }
.article-header .card-tag { margin-bottom: 10px; color: var(--cat-color, var(--color-accent)); }
.article-meta {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: 18px;
}
.article-hero-img {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: var(--radius);
  background: var(--color-bg-alt);
  display: block;
  overflow: hidden;
  margin-bottom: 8px;
  box-shadow: var(--shadow);
}
.article-hero-img img { width: 100%; height: 100%; object-fit: cover; display: block; }

.article-body { max-width: 760px; margin: 0 auto; padding: 0 20px 20px; }
.article-body h2 { margin-top: 1.4em; }
.article-body ul, .article-body ol { padding-left: 1.3em; }
.article-body li { margin-bottom: 0.5em; }

/* Botones de utilidad (saltar a receta / imprimir) */
.recipe-utility-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 18px 0 28px;
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-white);
  border: 2px solid var(--color-border);
  color: var(--color-text);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 10px 18px;
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}
.btn-ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-dark);
  text-decoration: none;
  transform: translateY(-2px);
}

.recipe-box {
  --cat-color: var(--color-primary);
  position: relative;
  scroll-margin-top: 90px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-left: 6px solid var(--cat-color);
  border-radius: var(--radius);
  padding: 24px 26px;
  margin: 28px 0;
}
.recipe-box h2 { margin-top: 0; }
.recipe-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}
.recipe-meta span {
  background: var(--color-white);
  border-radius: 999px;
  padding: 6px 14px;
  box-shadow: var(--shadow);
}
.recipe-meta strong { color: var(--cat-color); }

/* Checklist interactiva de ingredientes y pasos */
.recipe-box ul li, .recipe-box ol li {
  cursor: pointer;
  position: relative;
  transition: opacity 0.2s ease, color 0.2s ease;
  border-radius: 8px;
}
.recipe-box ul li:hover, .recipe-box ol li:hover { background: rgba(255,255,255,0.6); }
.recipe-box li.is-done {
  opacity: 0.5;
  text-decoration: line-through;
  color: var(--color-text-muted);
}

.cta-box {
  --cat-color: var(--color-primary);
  background: linear-gradient(135deg, var(--cat-color), var(--color-primary-dark));
  color: #fff;
  border-radius: var(--radius);
  padding: 30px;
  text-align: center;
  margin: 34px 0;
  box-shadow: var(--shadow);
}
.cta-box h3 { color: #fff; }
.cta-box .btn { background: #fff; color: var(--color-primary-dark); box-shadow: none; }
.cta-box .btn:hover { background: var(--color-bg-alt); transform: translateY(-3px); }

/* ---------- Bloques de anuncios AdSense ---------- */
.ad-slot {
  max-width: 760px;
  margin: 30px auto;
  padding: 4px;
  text-align: center;
}
.ad-slot .ad-label {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: 6px;
}
.ad-slot-header { max-width: var(--max-width); }
.ad-slot-sidebar { max-width: 320px; margin: 0 auto; }
.ad-placeholder {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius);
  padding: 18px;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  background: var(--color-bg-alt);
}

/* ---------- Layout con sidebar (listado de recetas) ---------- */
.layout-with-sidebar {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  align-items: start;
}
@media (max-width: 860px) {
  .layout-with-sidebar { grid-template-columns: 1fr; }
}
.sidebar { position: sticky; top: 90px; display: flex; flex-direction: column; gap: 24px; }
.sidebar-box {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}
.sidebar-box h4 { margin-bottom: 12px; }
.sidebar-box ul { list-style: none; padding: 0; margin: 0; }
.sidebar-box li { margin-bottom: 10px; font-size: 0.92rem; }

/* ---------- Páginas legales ---------- */
.legal-content { max-width: 780px; margin: 0 auto; padding: 40px 20px 60px; }
.legal-content h2 { margin-top: 1.6em; }
.legal-content p, .legal-content li { color: var(--color-text-muted); }
.legal-updated { color: var(--color-text-muted); font-size: 0.9rem; margin-bottom: 30px; }
.placeholder-fill {
  background: #FFF4CC;
  padding: 1px 6px;
  border-radius: 4px;
  font-weight: 600;
}

/* ---------- Footer ---------- */
.site-footer {
  background: #1B1330;
  color: #DCD3EE;
  padding: 48px 0 24px;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 28px;
  margin-bottom: 30px;
}
.footer-grid h4 { color: #fff; font-size: 1rem; margin-bottom: 14px; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid li { margin-bottom: 9px; }
.footer-grid a { color: #C9BBE8; font-size: 0.92rem; }
.footer-grid a:hover { color: var(--color-yellow); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 18px;
  font-size: 0.85rem;
  color: #9A8CB8;
  text-align: center;
}

/* ---------- Formulario de contacto ---------- */
.form-field { margin-bottom: 18px; }
.form-field label { display: block; font-weight: 700; margin-bottom: 6px; font-size: 0.92rem; }
.form-field input, .form-field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 2px solid var(--color-border);
  border-radius: 12px;
  font-family: var(--font-body);
  font-size: 1rem;
  background: var(--color-white);
  transition: border-color 0.2s ease;
}
.form-field input:focus, .form-field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}
.form-field textarea { min-height: 140px; resize: vertical; }

/* ---------- Modo impresión ---------- */
@media print {
  .site-header, .site-footer, .ad-slot, .hero, .cta-box,
  .recipe-utility-bar, .sidebar, .skip-link { display: none !important; }
  .recipe-box { border: 1px solid #000; background: #fff; }
}