/* =============================================
   Porto Wine Tours — Design System v3
   Palette: Wine (burgundy) + Gold + Cream
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700&family=Inter:wght@400;500;600&display=swap');

:root {
  --primary: #4A1C22;       /* Deep burgundy — understated */
  --primary-dark: #2D1216;
  --primary-light: #6B2F37;
  --accent: #BF9B6A;        /* Muted gold — subtle elegance */
  --accent-hover: #A88355;
  --bg: #FAFAF8;            /* Warm off-white */
  --bg-card: #FFFFFF;
  --text: #1A1A1A;          /* Rich dark */
  --text-muted: #6B6B6B;    /* Secondary gray */
  --text-light: #8C8C8C;    /* Descriptions */
  --border: #E5E3DF;        /* Warm subtle border */
  --border-light: #F0EFED;
  --success: #2D6A4F;
  --rating: #C4956A;
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  
  --shadow: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --max-width: 1200px;
  --nav-height: 64px;
}

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body); -webkit-font-smoothing: antialiased;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4 { font-family: var(--font-heading); line-height: 1.2; color: var(--text); }
h1 { font-size: 2.5rem; font-weight: 700; margin-bottom: 1rem; }
h2 { font-size: 1.75rem; font-weight: 600; margin-bottom: 0.75rem; margin-top: 2rem; }
h3 { font-size: 1.35rem; font-weight: 600; margin-bottom: 0.5rem; margin-top: 1.5rem; }
p { margin-bottom: 1rem; color: var(--text-muted); }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-light); }
ul, ol { margin-bottom: 1rem; padding-left: 1.25rem; }
li { margin-bottom: 0.35rem; color: var(--text-muted); }
img { max-width: 100%; height: auto; border-radius: var(--radius); }

/* Nav */
/* ── Navigation ── */
nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(250,250,248,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  height: var(--nav-height);
}
.nav-inner {
  max-width: var(--max-width); height: 100%;
  margin: 0 auto; padding: 0 2.5rem;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-heading); 
  font-size: 1.35rem; font-weight: 500;
  color: var(--primary); text-decoration: none;
  letter-spacing: 0.5px;
  transition: color 0.3s;
}
.nav-logo:hover { color: var(--primary-light); }
.nav-links {
  display: flex; align-items: center; gap: 2rem;
}
.nav-links a {
  font-family: var(--font-body);
  font-size: 0.85rem; font-weight: 400;
  color: var(--text); text-decoration: none;
  letter-spacing: 0.3px;
  transition: color 0.2s;
  padding: 0;
}
.nav-links a:hover { color: var(--primary); }
.nav-cta {
  color: var(--primary) !important;
  font-weight: 500 !important;
  letter-spacing: 0.5px !important;
  font-size: 0.8rem !important;
  text-transform: uppercase;
  border-bottom: 1px solid var(--primary);
  padding-bottom: 2px !important;
  margin-left: 1rem;
  transition: all 0.2s !important;
}
.nav-cta:hover {
  color: var(--primary-light) !important;
  border-bottom-color: var(--primary-light);
}
/* ── Mobile Navigation ── */
.nav-toggle {
  display: none;
  flex-direction: column; justify-content: center;
  width: 44px; height: 44px;
  background: none; border: none; cursor: pointer;
  padding: 10px; z-index: 200;
  position: relative;
}
.nav-toggle span {
  display: block; width: 22px; height: 1.5px;
  background: var(--text); margin: 4px 0;
  border-radius: 1px;
  transition: all 0.3s ease;
  transform-origin: center;
}
.nav-toggle.open span:nth-child(1) {
  transform: translateY(5.5px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0; transform: scaleX(0);
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-5.5px) rotate(-45deg);
}

@media (max-width: 768px) {
  .nav-inner { padding: 0 1.5rem; }
  .nav-toggle { display: flex; }
  
  .nav-links {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: var(--bg);
    flex-direction: column; justify-content: center; align-items: center;
    gap: 0;
    opacity: 0; visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 150;
  }
  .nav-links.open {
    opacity: 1; visibility: visible;
  }
  .nav-links a {
    font-size: 1.5rem; font-weight: 300;
    font-family: var(--font-heading);
    padding: 0.85rem 0;
    letter-spacing: 0.5px;
    transition: color 0.2s;
  }
  .nav-links a:hover {
    color: var(--primary);
  }
  .nav-cta {
    font-size: 1rem !important;
    font-weight: 400 !important;
    margin-left: 0; margin-top: 2rem;
    padding: 0.75rem 2rem !important;
    border: 1px solid var(--primary) !important;
    border-radius: 2px;
    color: var(--primary) !important;
    text-transform: uppercase;
    letter-spacing: 1.5px !important;
    transition: all 0.2s !important;
  }
  .nav-cta:hover {
    background: var(--primary) !important;
    color: white !important;
  }
}

/* Hero */
.hero {
  min-height: 70vh;
  display: flex; align-items: center; justify-content: center;
  text-align: center;
  background: linear-gradient(rgba(74,28,34,0.55), rgba(45,18,22,0.45)), url('/images/hero.jpg') center/cover no-repeat;
  padding: 4rem 2rem;
}
.hero-content { max-width: 720px; }
.hero-tagline {
  font-family: var(--font-heading); font-size: 0.9rem; color: var(--accent);
  text-transform: uppercase; letter-spacing: 3px; margin-bottom: 0.75rem;
  font-weight: 400;
}
.hero h1 { 
  color: white; font-size: 3.25rem; font-weight: 500; 
  line-height: 1.2; letter-spacing: -0.5px;
  font-family: var(--font-heading);
}
.hero p { 
  color: rgba(255,255,255,0.8); font-size: 1.1rem; margin-bottom: 2.5rem;
  font-family: var(--font-body); font-weight: 300; line-height: 1.6;
}
.hero-cta {
  display: inline-block; color: white !important;
  font-family: var(--font-body); font-size: 0.85rem; font-weight: 500;
  text-transform: uppercase; letter-spacing: 1.5px;
  padding: 0.85rem 2.5rem;
  border: 1px solid rgba(255,255,255,0.6);
  border-radius: 2px;
  transition: all 0.3s;
  text-decoration: none;
}
.hero-cta:hover { 
  background: rgba(255,255,255,0.15); 
  border-color: white;
}

@media (max-width: 768px) {
  .hero { min-height: 50vh; padding: 3rem 1.5rem; }
  .hero h1 { font-size: 2rem; }
  .product-grid { grid-template-columns: 1fr; }
}


/* Content Section */
.section { padding: 3rem 1.5rem; }
.content { max-width: var(--max-width); margin: 0 auto; }

/* Breadcrumbs */
.breadcrumbs {
  font-size: 0.85rem; color: var(--text-muted); margin-bottom: 1rem;
  padding: 0.5rem 0;
}
.breadcrumbs a { color: var(--text-muted); }
.breadcrumbs a:hover { color: var(--primary); }
.breadcrumbs span { color: var(--text); }

/* Trust Badges */
.trust-badges {
  display: flex; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1.5rem;
}
.trust-badge {
  background: white; border: 1px solid var(--border); border-radius: 20px;
  padding: 0.4rem 1rem; font-size: 0.8rem; color: var(--text-muted);
  display: flex; align-items: center; gap: 0.4rem;
}

/* Product Grid */
.product-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem; margin: 1.5rem 0;
}
.product-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
  display: flex; flex-direction: column; transition: transform 0.2s, box-shadow 0.2s;
  min-height: var(--card-min-height);
}
.product-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.product-card img { width: 100%; height: 180px; object-fit: cover; border-radius: 0; }
.product-card-body { padding: 1.25rem; flex: 1; display: flex; flex-direction: column; }
.product-card h3 { font-size: 1.05rem; margin-top: 0; margin-bottom: 0.35rem; }
.product-card .rating { color: var(--rating); font-size: 0.9rem; margin-bottom: 0.5rem; }
.product-card .price { font-size: 1.2rem; font-weight: 700; color: var(--primary); margin-bottom: 0.5rem; }
.product-card p { font-size: 0.9rem; margin-bottom: 0.75rem; }
.product-card .cta {
  margin-top: auto; display: inline-block; background: var(--accent);
  color: white; padding: 0.6rem 1.5rem; border-radius: 6px;
  font-weight: 600; font-size: 0.85rem; text-align: center;
}

/* Comparison Card */
.comp-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.5rem; margin-bottom: 1rem;
  border-left: 4px solid var(--primary);
}
.comp-card h3 { margin-top: 0; }

/* Verdict Box */
.verdict {
  background: #F0F7F4; border-left: 4px solid var(--success);
  padding: 1.25rem; border-radius: 0 var(--radius) var(--radius) 0;
  margin: 1.5rem 0;
}
.verdict h3 { color: var(--success); margin-top: 0; }

/* Honesty Box */
.honesty {
  background: #FFF9F0; border: 1px solid #E8D5B5;
  padding: 1.25rem; border-radius: var(--radius); margin: 1.5rem 0;
}
.honesty h3 { color: var(--warning); margin-top: 0; }

/* Author Block */
.author-block {
  display: flex; gap: 1rem; padding: 1.5rem; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: var(--radius);
  margin: 2rem auto; max-width: var(--max-width);
}
.author-avatar {
  width: 60px; height: 60px; border-radius: 50%;
  background: var(--primary); color: white;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-heading); font-size: 1.5rem; flex-shrink: 0;
}
.author-info h4 { margin-bottom: 0.2rem; }
.author-title { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 0.5rem; }
.author-info p { font-size: 0.9rem; }

/* Disclosure */
.disclosure {
  background: #F8F6F3; padding: 0.75rem 1rem; border-radius: 6px;
  font-size: 0.8rem; color: var(--text-muted); margin-bottom: 1.5rem;
  border: 1px solid var(--border);
}
.disclosure a { color: var(--text-muted); text-decoration: underline; }

/* Footer */
footer {
  background: var(--text); color: rgba(255,255,255,0.8);
  padding: 3rem 1.5rem 1.5rem; margin-top: 3rem;
}
.footer-inner { max-width: var(--max-width); margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 2rem; }
footer h4 { color: white; font-size: 1rem; margin-bottom: 1rem; }
footer a { color: rgba(255,255,255,0.7); }
footer a:hover { color: white; }
footer p { font-size: 0.85rem; color: rgba(255,255,255,0.6); }
.footer-bottom { text-align: center; padding-top: 2rem; margin-top: 2rem; border-top: 1px solid rgba(255,255,255,0.15); }

/* Table Styles */
table { width: 100%; border-collapse: collapse; margin: 1rem 0; font-size: 0.9rem; }
th { background: var(--primary); color: white; padding: 0.75rem; text-align: left; font-weight: 600; }
td { padding: 0.75rem; border-bottom: 1px solid var(--border); }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #F8F6F3; }

/* Responsive */
@media (max-width: 768px) {
  h1 { font-size: 1.8rem; }
  h2 { font-size: 1.35rem; }
  .hero { min-height: 50vh; }
  .hero h1 { font-size: 2rem; }
  .product-grid { grid-template-columns: 1fr; }
  .nav-links { gap: 0.75rem; }
  .nav-links a { font-size: 0.8rem; }
  .footer-inner { grid-template-columns: 1fr; }
  .author-block { flex-direction: column; align-items: center; text-align: center; }
}

@media (max-width: 480px) {
  .hero { padding: 2rem 1rem; }
  .hero h1 { font-size: 1.6rem; }
  .section { padding: 2rem 1rem; }
  .nav-inner { padding: 0.5rem 1rem; }
}

/* Utility */
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mb-1 { margin-bottom: 1rem; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-1 { gap: 1rem; }