/* ==========================================================================
   CERO DESPERDICIO - DESIGN SYSTEM & STYLESHEET
   Niche: Zero Waste Cooking & Leftover Recipes
   Color Palette: Deep Forest Green, Emerald Accent, Warm Gold, Soft Cream
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300..900;1,9..144,300..900&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Colors */
  --primary: #1b4332;
  --primary-light: #2d6a4f;
  --primary-hover: #081c15;
  --accent: #d4a373;
  --accent-gold: #e9c46a;
  --accent-warm: #f4a261;
  --accent-green: #52b788;
  --bg-light: #f8f9fa;
  --bg-card: #ffffff;
  --bg-subtle: #f1f5f3;
  --text-dark: #1f2937;
  --text-muted: #6b7280;
  --text-light: #f9fafb;
  --border-color: #e5e7eb;

  /* Fonts */
  --font-serif: 'Fraunces', Georgia, serif;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 25px rgba(27, 67, 50, 0.12);

  /* Radius & Transitions */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Global */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-light);
  color: var(--text-dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary-light);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--primary);
}

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

/* Typography */
h1, h2, h3, h4, .font-serif {
  font-family: var(--font-serif);
  color: var(--primary);
  line-height: 1.25;
  font-weight: 700;
}

.section-title {
  font-size: 2.2rem;
  margin-bottom: 0.5rem;
  text-align: center;
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  max-width: 650px;
  margin: 0 auto 2.5rem auto;
  font-size: 1.05rem;
}

/* Layout Containers */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Navigation Header */
.site-header {
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--border-color);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--primary);
}

.logo-icon {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  box-shadow: 0 4px 10px rgba(45, 106, 79, 0.25);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.8rem;
  list-style: none;
}

.nav-links a {
  font-weight: 500;
  color: var(--text-dark);
  font-size: 0.95rem;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--primary-light);
}

/* Language Switcher */
.lang-switcher {
  display: flex;
  align-items: center;
  background-color: var(--bg-subtle);
  padding: 4px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
}

.lang-btn {
  border: none;
  background: transparent;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--text-muted);
  transition: var(--transition);
}

.lang-btn.active {
  background-color: #ffffff;
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

/* Hero Section */
.hero-section {
  background: linear-gradient(180deg, #e8f5e9 0%, var(--bg-light) 100%);
  padding: 4rem 0 3rem 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-title {
  font-size: 3rem;
  max-width: 850px;
  margin: 0 auto 1.2rem auto;
  color: var(--primary);
}

.hero-title span {
  color: var(--primary-light);
  position: relative;
}

.hero-description {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 2.5rem auto;
}

/* Ingredient Search & Pills */
.ingredient-search-box {
  max-width: 650px;
  margin: 0 auto 2rem auto;
  position: relative;
}

.search-input-wrapper {
  display: flex;
  align-items: center;
  background: #ffffff;
  border-radius: var(--radius-full);
  padding: 6px 8px 6px 20px;
  box-shadow: var(--shadow-lg);
  border: 2px solid transparent;
  transition: var(--transition);
}

.search-input-wrapper:focus-within {
  border-color: var(--primary-light);
}

.search-input {
  border: none;
  outline: none;
  width: 100%;
  font-size: 1.05rem;
  color: var(--text-dark);
  background: transparent;
}

.search-btn {
  background-color: var(--primary);
  color: #fff;
  border: none;
  padding: 12px 26px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
}

.search-btn:hover {
  background-color: var(--primary-light);
}

.ingredient-pills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  max-width: 900px;
  margin: 0 auto;
}

.pill {
  background-color: #ffffff;
  border: 1.5px solid var(--border-color);
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-dark);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.pill:hover, .pill.active {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Ad Container Placeholder Styling */
.ad-container {
  width: 100%;
  margin: 2rem 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.ad-slot {
  background-color: #f8fafc;
  border: 1px dashed #cbd5e1;
  border-radius: var(--radius-sm);
  padding: 12px;
  width: 100%;
  max-width: 728px;
  text-align: center;
  position: relative;
  min-height: 90px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.ad-label {
  font-size: 0.7rem;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

/* Article Cards Grid */
.articles-section {
  padding: 3rem 0;
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
}

a.article-card {
  text-decoration: none !important;
  color: inherit;
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: var(--transition);
  cursor: pointer;
}

a.article-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  color: inherit;
}

.card-link-text {
  color: var(--primary-light);
  font-weight: 600;
  font-size: 0.9rem;
}

a.article-card:hover .card-link-text {
  color: var(--primary);
}

.card-img-wrapper {
  height: 200px;
  position: relative;
  overflow: hidden;
  background-color: #e2e8f0;
}

.card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.article-card:hover .card-img {
  transform: scale(1.05);
}

.card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(27, 67, 50, 0.9);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.card-content {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-meta {
  display: flex;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
}

.card-title {
  font-size: 1.35rem;
  margin-bottom: 0.6rem;
  color: var(--primary);
}

.card-excerpt {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-bottom: 1.2rem;
  flex-grow: 1;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid #f1f5f9;
  padding-top: 0.8rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary-light);
}

/* Calculator Section */
.calculator-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #ffffff;
  padding: 4rem 0;
  border-radius: var(--radius-lg);
  margin: 3rem auto;
}

.calculator-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.calc-info h2 {
  color: #ffffff;
  font-size: 2.3rem;
  margin-bottom: 1rem;
}

.calc-info p {
  color: #d8f3dc;
  font-size: 1.05rem;
  margin-bottom: 1.5rem;
}

.calc-card {
  background: #ffffff;
  color: var(--text-dark);
  padding: 2rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: 1.2rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: var(--font-sans);
}

.calc-results {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 2px dashed var(--border-color);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  text-align: center;
}

.result-box {
  background-color: var(--bg-subtle);
  padding: 1rem;
  border-radius: var(--radius-sm);
}

.result-number {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary);
}

.result-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Article Detail Page Layout */
.article-page {
  padding: 3rem 0;
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 2.5rem;
}

.article-main {
  background: #ffffff;
  padding: 2.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

.article-header {
  margin-bottom: 2rem;
}

.article-header h1 {
  font-size: 2.5rem;
  margin: 0.8rem 0;
}

.article-hero-img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: 2rem;
}

.article-body {
  font-size: 1.05rem;
  line-height: 1.8;
  color: #334155;
}

.article-body h2 {
  font-size: 1.8rem;
  margin: 2rem 0 1rem 0;
}

.article-body h3 {
  font-size: 1.35rem;
  margin: 1.5rem 0 0.8rem 0;
}

.article-body p {
  margin-bottom: 1.4rem;
}

.article-body ul, .article-body ol {
  margin: 0 0 1.5rem 1.5rem;
}

.article-body li {
  margin-bottom: 0.5rem;
}

.tip-box {
  background-color: #ecfdf5;
  border-left: 4px solid var(--primary-light);
  padding: 1.2rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1.5rem 0;
}

.tip-box h4 {
  color: var(--primary);
  margin-bottom: 0.4rem;
}

/* Sidebar */
.sidebar-widget {
  background: #ffffff;
  padding: 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  margin-bottom: 2rem;
}

.widget-title {
  font-size: 1.2rem;
  border-bottom: 2px solid var(--bg-subtle);
  padding-bottom: 0.5rem;
  margin-bottom: 1rem;
}

/* Footer */
.site-footer {
  background-color: var(--primary-hover);
  color: #9ca3af;
  padding: 4rem 0 2rem 0;
  margin-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  color: #ffffff;
  font-size: 1.1rem;
  margin-bottom: 1.2rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.6rem;
}

.footer-links a {
  color: #9ca3af;
  font-size: 0.92rem;
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-bottom {
  border-top: 1px solid #374151;
  padding-top: 1.8rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
}

/* Cookie Consent Banner */
.cookie-banner {
  position: fixed;
  bottom: 20px;
  left: 20px;
  right: 20px;
  max-width: 600px;
  background: #ffffff;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
  padding: 1.5rem;
  z-index: 9999;
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: transform 0.4s ease, opacity 0.4s ease;
}

.cookie-banner.hidden {
  transform: translateY(150%);
  opacity: 0;
  pointer-events: none;
}

.cookie-buttons {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

.btn-sm {
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
}

.btn-secondary {
  background-color: var(--bg-subtle);
  color: var(--text-dark);
}

/* Responsive Rules */
@media (max-width: 992px) {
  .calculator-container {
    grid-template-columns: 1fr;
  }
  .article-layout {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.2rem;
  }
  .nav-links {
    display: none;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}