/* ========================================
   Kaffeeroesterei Dreiburgen — Prototyp
   ======================================== */

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

:root {
  --color-dark: #1a1209;
  --color-brown: #3c2415;
  --color-warm: #6b3a2a;
  --color-accent: #c17f3e;
  --color-gold: #d4a24e;
  --color-cream: #f5efe6;
  --color-light: #faf8f4;
  --color-white: #ffffff;
  --color-text: #2c1810;
  --color-text-light: #6b5d53;
  --color-border: #e0d5c8;
  --color-success: #4a7c59;
  --color-error: #a03030;
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --max-width: 1200px;
  --radius: 8px;
  --radius-lg: 16px;
  --shadow: 0 2px 12px rgba(26,18,9,0.08);
  --shadow-lg: 0 8px 32px rgba(26,18,9,0.12);
  --transition: 0.3s ease;
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-light);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-warm); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent); }
h1, h2, h3, h4 { font-family: var(--font-heading); color: var(--color-brown); line-height: 1.2; }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 4vw, 2.4rem); }
h3 { font-size: clamp(1.2rem, 3vw, 1.6rem); }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* --- Header / Navigation --- */
.site-header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 1.4rem;
  color: var(--color-brown);
  font-weight: 700;
  letter-spacing: 0.5px;
}
.logo img {
  height: 48px;
  width: auto;
}
.logo span { color: var(--color-accent); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-brown);
  margin: 5px 0;
  transition: var(--transition);
}

.main-nav ul {
  display: flex;
  list-style: none;
  gap: 32px;
  align-items: center;
}
.main-nav a {
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 8px 0;
  position: relative;
}
.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}
.main-nav a:hover::after,
.main-nav a.active::after { width: 100%; }
.main-nav a:hover { color: var(--color-brown); }

/* --- Hero Section --- */
.hero {
  background: linear-gradient(135deg, rgba(26,18,9,0.7) 0%, rgba(60,36,21,0.75) 100%),
              url('../img/hero.jpg') center/cover no-repeat;
  color: var(--color-cream);
  padding: 120px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: none;
}
.hero-content { position: relative; z-index: 1; max-width: 700px; margin: 0 auto; }
.hero h1 { color: var(--color-cream); margin-bottom: 20px; font-size: clamp(2.4rem, 6vw, 3.8rem); }
.hero p { font-size: 1.15rem; color: rgba(245,239,230,0.85); margin-bottom: 36px; line-height: 1.7; }

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  font-family: var(--font-body);
  text-align: center;
}
.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
}
.btn-primary:hover {
  background: var(--color-gold);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(193,127,62,0.3);
}
.btn-secondary {
  background: transparent;
  color: var(--color-cream);
  border: 2px solid rgba(245,239,230,0.4);
}
.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.btn-outline {
  background: transparent;
  color: var(--color-warm);
  border: 2px solid var(--color-warm);
}
.btn-outline:hover {
  background: var(--color-warm);
  color: var(--color-white);
}
.btn-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* --- Section Styles --- */
.section {
  padding: 80px 0;
}
.section-alt {
  background: var(--color-white);
}
.section-dark {
  background: var(--color-brown);
  color: var(--color-cream);
}
.section-dark h2 { color: var(--color-cream); }
.section-header {
  text-align: center;
  margin-bottom: 48px;
}
.section-header p {
  color: var(--color-text-light);
  font-size: 1.05rem;
  margin-top: 12px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

/* --- Feature Cards (Homepage) --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}
.feature-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: var(--color-cream);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}
.feature-icon img {
  width: 36px;
  height: 36px;
  object-fit: contain;
}

/* --- Payment Icons --- */
.payment-icons {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 12px;
}
.payment-icons img {
  height: 28px;
  width: auto;
  opacity: 0.7;
  transition: opacity var(--transition);
}
.payment-icons img:hover { opacity: 1; }
.feature-card h3 { margin-bottom: 12px; }
.feature-card p { color: var(--color-text-light); font-size: 0.95rem; }

/* --- Product Cards --- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 28px;
}
.product-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.product-image {
  width: 100%;
  height: 280px;
  background: var(--color-cream);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--color-accent);
  position: relative;
  overflow: hidden;
}
.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}
.product-card:hover .product-image img {
  transform: scale(1.05);
}
.product-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.product-info {
  padding: 24px;
}
.product-origin {
  font-size: 0.8rem;
  color: var(--color-accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
}
.product-name {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--color-brown);
  margin-bottom: 12px;
}
.product-desc {
  font-size: 0.9rem;
  color: var(--color-text-light);
  margin-bottom: 16px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Bean Rating */
.product-ratings {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}
.rating-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
}
.rating-label {
  width: 70px;
  color: var(--color-text-light);
  font-weight: 500;
}
.beans {
  display: flex;
  gap: 2px;
}
.bean {
  width: 16px;
  height: 16px;
  display: inline-block;
}
.bean svg { width: 16px; height: 16px; }
.bean.filled svg path { fill: var(--color-accent); }
.bean.empty svg path { fill: var(--color-border); }

/* Brewing tags */
.product-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}
.tag {
  background: var(--color-cream);
  color: var(--color-warm);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
}

.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}
.product-price {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  color: var(--color-brown);
  font-weight: 700;
}
.product-price small {
  font-size: 0.75rem;
  color: var(--color-text-light);
  font-weight: 400;
  font-family: var(--font-body);
}
.product-stars {
  color: var(--color-gold);
  font-size: 0.9rem;
}

/* --- Filter Section --- */
.filter-section {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin-bottom: 40px;
  box-shadow: var(--shadow);
}
.filter-section h3 {
  margin-bottom: 24px;
  font-size: 1.1rem;
}

/* Brewing method tabs */
.brew-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.brew-tab {
  padding: 10px 20px;
  border: 2px solid var(--color-border);
  border-radius: 30px;
  background: var(--color-white);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-light);
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-body);
}
.brew-tab:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.brew-tab.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

/* Sliders */
.sliders-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.slider-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.slider-label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-brown);
}
.slider-value {
  font-size: 0.85rem;
  color: var(--color-accent);
  font-weight: 600;
}
.slider-range {
  display: flex;
  align-items: center;
  gap: 12px;
}
.slider-range span {
  font-size: 0.8rem;
  color: var(--color-text-light);
  min-width: 10px;
}
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--color-border);
  outline: none;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 3px solid var(--color-white);
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
  cursor: pointer;
  transition: transform var(--transition);
}
input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}
input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 3px solid var(--color-white);
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
  cursor: pointer;
}

.filter-reset {
  margin-top: 20px;
  text-align: right;
}
.filter-reset button {
  background: none;
  border: none;
  color: var(--color-text-light);
  font-size: 0.85rem;
  cursor: pointer;
  font-family: var(--font-body);
  text-decoration: underline;
}
.filter-reset button:hover { color: var(--color-warm); }

.products-count {
  text-align: center;
  color: var(--color-text-light);
  margin-bottom: 24px;
  font-size: 0.95rem;
}

.no-results {
  text-align: center;
  padding: 60px 20px;
  color: var(--color-text-light);
}
.no-results p { font-size: 1.1rem; margin-bottom: 16px; }

/* --- About / Roesterei --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.about-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-cream);
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
}
.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about-text h2 { margin-bottom: 20px; }
.about-text p { color: var(--color-text-light); margin-bottom: 16px; }

/* --- Stats --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}
.stat-item h3 {
  font-size: 2.5rem;
  color: var(--color-accent);
  margin-bottom: 8px;
}
.stat-item p {
  font-size: 0.9rem;
  color: var(--color-text-light);
}
.section-dark .stat-item p { color: rgba(245,239,230,0.7); }
.section-dark .stat-item h3 { color: var(--color-gold); }

/* --- Timeline (Kaffeewissen) --- */
.knowledge-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}
.knowledge-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow);
}
.knowledge-card h3 {
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.knowledge-card p { color: var(--color-text-light); font-size: 0.95rem; line-height: 1.7; }
.knowledge-icon {
  width: 40px;
  height: 40px;
  background: var(--color-cream);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

/* --- B2B Section --- */
.b2b-hero {
  background: linear-gradient(135deg, var(--color-dark) 0%, #2a1a0f 100%);
  color: var(--color-cream);
  padding: 80px 24px;
  text-align: center;
}
.b2b-hero h1 { color: var(--color-cream); margin-bottom: 16px; }
.b2b-hero p { color: rgba(245,239,230,0.8); font-size: 1.1rem; max-width: 600px; margin: 0 auto; }

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 28px;
}
.benefit-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  box-shadow: var(--shadow);
  border-top: 4px solid var(--color-accent);
}
.benefit-card h3 { margin: 16px 0 12px; }
.benefit-card p { color: var(--color-text-light); font-size: 0.9rem; }

/* --- Forms --- */
.form-section {
  max-width: 640px;
  margin: 0 auto;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-group.full-width { grid-column: 1 / -1; }
.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-brown);
}
.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(193,127,62,0.1);
}
.form-group textarea { resize: vertical; min-height: 120px; }

.form-submit {
  margin-top: 24px;
  text-align: center;
}
.form-submit .btn { min-width: 200px; }

/* --- Contact Info --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.contact-info-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}
.contact-icon {
  width: 48px;
  height: 48px;
  background: var(--color-cream);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}
.contact-info-card h4 { margin-bottom: 4px; font-family: var(--font-body); font-weight: 600; }
.contact-info-card p { color: var(--color-text-light); font-size: 0.9rem; }

/* --- Newsletter (Footer CTA) --- */
.newsletter-section {
  background: linear-gradient(135deg, var(--color-warm) 0%, var(--color-brown) 100%);
  padding: 60px 24px;
  text-align: center;
  color: var(--color-cream);
}
.newsletter-section h2 { color: var(--color-cream); margin-bottom: 12px; }
.newsletter-section p { color: rgba(245,239,230,0.8); margin-bottom: 28px; }
.newsletter-form {
  display: flex;
  gap: 12px;
  max-width: 480px;
  margin: 0 auto;
}
.newsletter-form input {
  flex: 1;
  padding: 14px 20px;
  border: none;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-family: var(--font-body);
}
.newsletter-form .btn {
  white-space: nowrap;
  background: var(--color-gold);
  color: var(--color-dark);
  font-weight: 700;
}
.newsletter-form .btn:hover {
  background: var(--color-cream);
}

/* --- Footer --- */
.site-footer {
  background: var(--color-dark);
  color: rgba(245,239,230,0.7);
  padding: 60px 24px 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  max-width: var(--max-width);
  margin: 0 auto;
}
.footer-brand .logo { font-size: 1.2rem; margin-bottom: 12px; }
.footer-brand p { font-size: 0.9rem; line-height: 1.6; }
.footer-col h4 {
  color: var(--color-cream);
  font-family: var(--font-body);
  font-weight: 600;
  margin-bottom: 16px;
  font-size: 0.95rem;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a {
  color: rgba(245,239,230,0.6);
  font-size: 0.9rem;
}
.footer-col a:hover { color: var(--color-accent); }

.footer-bottom {
  border-top: 1px solid rgba(245,239,230,0.1);
  margin-top: 40px;
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
}

/* --- Appointment Card --- */
.appointment-card {
  background: var(--color-cream);
  border-radius: var(--radius-lg);
  padding: 40px;
  border: 2px solid var(--color-border);
}
.appointment-card h3 { margin-bottom: 8px; }
.appointment-card > p { color: var(--color-text-light); margin-bottom: 24px; }

/* --- Page Header --- */
.page-header {
  background: linear-gradient(135deg, var(--color-brown) 0%, var(--color-dark) 100%);
  color: var(--color-cream);
  padding: 60px 24px;
  text-align: center;
}
.page-header h1 { color: var(--color-cream); margin-bottom: 12px; }
.page-header p { color: rgba(245,239,230,0.8); font-size: 1.05rem; }

/* --- Responsive --- */
@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
  }
  .main-nav.open { display: block; }
  .main-nav ul {
    flex-direction: column;
    gap: 0;
    padding: 16px 24px;
  }
  .main-nav li { border-bottom: 1px solid var(--color-border); }
  .main-nav li:last-child { border-bottom: none; }
  .main-nav a { display: block; padding: 14px 0; }

  .hero { padding: 60px 24px; }
  .section { padding: 48px 0; }

  .about-grid,
  .contact-grid { grid-template-columns: 1fr; }
  .about-grid { gap: 32px; }

  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }

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

  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }

  .newsletter-form { flex-direction: column; }

  .filter-section { padding: 20px; }
  .brew-tabs { gap: 6px; }
  .brew-tab { padding: 8px 14px; font-size: 0.85rem; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .btn-group { flex-direction: column; align-items: center; }
}