/* ============================================
   Anvil Brewing Co. — DARK MODE INDUSTRIAL
   Near-black backgrounds. Warm amber accents.
   Industrial typography. Taproom atmosphere.
   ============================================ */

:root {
  --color-primary: #D4A017;
  --color-primary-dark: #B8860B;
  --color-secondary: #B87333;
  --color-bg: #0F0F0F;
  --color-bg-alt: #1A1A1A;
  --color-bg-elevated: #222222;
  --color-text: #E8E2D6;
  --color-text-muted: #9B9589;
  --color-border: #333333;
  --font-heading: 'Barlow Condensed', sans-serif;
  --font-body: 'Inter', sans-serif;
  --max-width: 1280px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

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

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--color-primary-dark); }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }

/* Grain texture overlay */
.grain::after {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1;
}

/* Dark card */
.dark-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  transition: all 0.3s ease;
}

.dark-card:hover {
  border-color: var(--color-secondary);
  transform: translateY(-2px);
}

/* Industrial button */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9375rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-primary);
  color: #0F0F0F;
  border: none;
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  color: #0F0F0F;
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.btn-outline:hover {
  background: var(--color-primary);
  color: #0F0F0F;
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover {
  border-color: var(--color-text);
}

/* Beer card — taproom menu board style */
.beer-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  padding: 1.5rem;
  transition: all 0.3s ease;
}
.beer-card:hover {
  border-color: var(--color-primary);
}
.beer-stat {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--color-border);
  display: inline-block;
}

/* Fade-in */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* Active nav */
nav a.active { color: var(--color-primary); }

/* Mobile nav */
#mobile-nav { transition: max-height 0.3s ease; }
#mobile-nav.hidden { display: none; }

/* Contact form — dark */
.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color 0.2s;
}
.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  outline: none;
  border-color: var(--color-primary);
}
.contact-form label {
  display: block;
  margin-bottom: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
}

/* Section spacing */
section { padding-top: 5rem; padding-bottom: 5rem; }
section:first-of-type { padding-top: 0; }
p { line-height: 1.75; }
section[id] { scroll-margin-top: 5rem; }

/* Gold accent divider */
.gold-divider {
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
}