/*
  Rivera Coffee International - Design System & Styles
*/

@import url('https://fonts.googleapis.com/css2?family=Antonio:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Colors */
  --color-cream: #FAFAFA;
  --color-cream-dark: #EBEBEB;
  --color-brown-dark: #2B1C14;
  --color-brown-medium: #543928;
  --color-brown-light: #845434;
  --color-brand-primary: #845434; 
  --color-brand-light: #A26842; 
  --color-accent: #B2764E; 

  /* Typography */
  --font-sans: 'Inter', sans-serif;
  --font-serif: 'Antonio', sans-serif;

  /* Spacing */
  --section-padding: 6rem 2rem;
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-sans);
  color: var(--color-brown-dark);
  background-color: var(--color-cream);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  line-height: 1.2;
  margin-bottom: 1rem;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

ul {
  list-style: none;
}

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

/* --- Container --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* --- Typography Utilities --- */
.text-center { text-align: center; }
.text-gold { color: var(--color-accent); }
.text-brand { color: var(--color-brand-primary); }
.section-subtitle {
  font-family: var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.875rem;
  color: var(--color-brown-light);
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
  outline: none;
  text-align: center;
}

.btn-primary {
  background-color: var(--color-brand-primary);
  color: var(--color-cream);
}
.btn-primary:hover {
  background-color: var(--color-brand-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(132, 84, 52, 0.2);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-cream);
  border: 1px solid var(--color-cream);
  backdrop-filter: blur(5px);
}
.btn-secondary:hover {
  background-color: var(--color-cream);
  color: var(--color-brown-dark);
}

/* --- Header & Navigation --- */
header {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1.5rem 0;
  z-index: 100;
  transition: background-color var(--transition-normal);
}
header.scrolled {
  position: fixed;
  background-color: rgba(44, 30, 22, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  padding: 1rem 0;
}
.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo-container {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-cream);
}
.logo-container img {
  height: 40px;
}
.logo-text {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 1px;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}
.nav-links li a {
  color: var(--color-cream);
  font-weight: 500;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  position: relative;
}
.nav-links li a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition-fast);
}
.nav-links li a:hover::after {
  width: 100%;
}

/* --- Hero Section --- */
.hero {
  height: 100vh;
  min-height: 600px;
  background: linear-gradient(rgba(44, 30, 22, 0.7), rgba(44, 30, 22, 0.3)), url('https://images.unsplash.com/photo-1497935586351-b67a49e012bf?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
  display: flex;
  align-items: center;
  position: relative;
  color: var(--color-cream);
}

/* Create a dynamic leaf animation overlay (subtle) */
.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(circle at center, transparent 0%, rgba(43, 28, 20, 0.4) 100%);
  pointer-events: none;
}

.hero-content {
  max-width: 800px;
  z-index: 2;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 1s forwards 0.5s;
}
.hero h1 {
  font-size: clamp(3rem, 5vw, 5rem);
  margin-bottom: 1.5rem;
  font-weight: 700;
  text-shadow: 0 4px 10px rgba(0,0,0,0.3);
}
.hero p {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.9;
  max-width: 600px;
}
.hero-cta {
  display: flex;
  gap: 1rem;
}

/* Animations */
@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- About Section --- */
.about {
  padding: var(--section-padding);
  background-color: var(--color-cream);
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.about-image {
  position: relative;
}
.about-image img {
  border-radius: 4px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.1);
  transition: transform var(--transition-slow);
}
.about-image:hover img {
  transform: scale(1.02);
}
.about-image::before {
  content: '';
  position: absolute;
  top: -20px;
  left: -20px;
  right: 20px;
  bottom: 20px;
  border: 2px solid var(--color-brand-light);
  border-radius: 4px;
  z-index: -1;
}

.about-content h2 {
  font-size: 2.5rem;
  color: var(--color-brown-dark);
}
.about-content p {
  margin-bottom: 1.5rem;
  color: #555;
}

/* --- Products / Our Coffee --- */
.products {
  padding: var(--section-padding);
  background-color: var(--color-brown-dark);
  color: var(--color-cream);
  position: relative;
}
.products .section-header {
  margin-bottom: 4rem;
}
.products .section-header h2 {
  font-size: 2.5rem;
}

.product-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.product-card {
  background-color: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 2rem;
  border-radius: 8px;
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
}
.product-card:hover {
  transform: translateY(-10px);
  background-color: rgba(255,255,255,0.06);
  border-color: var(--color-accent);
}
.product-card h3 {
  font-size: 1.8rem;
  color: var(--color-accent);
  margin-bottom: 1rem;
}
.product-details {
  list-style: none;
  margin-bottom: 1.5rem;
}
.product-details li {
  margin-bottom: 0.5rem;
  padding-left: 1.5rem;
  position: relative;
}
.product-details li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--color-brand-light);
}

/* --- Why Choose Us --- */
.features {
  padding: var(--section-padding);
  background-color: var(--color-cream-dark);
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  text-align: center;
}
.feature-item {
  padding: 2rem;
  background: var(--color-cream);
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.05);
  transition: all var(--transition-fast);
}
.feature-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(44, 30, 22, 0.1);
}
.feature-icon {
  width: 60px;
  height: 60px;
  background-color: var(--color-brand-light);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem auto;
  font-size: 1.5rem;
}
.feature-item h3 {
  font-family: var(--font-sans);
  font-size: 1.25rem;
  color: var(--color-brown-dark);
}

/* --- CTA & Contact Section --- */
.contact-section {
  padding: var(--section-padding);
  background: linear-gradient(135deg, var(--color-brand-primary), var(--color-brown-dark));
  color: var(--color-cream);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}
.contact-info h2 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.5rem;
}
.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  font-size: 0.9rem;
}
.form-control {
  width: 100%;
  padding: 1rem;
  border: 1px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.05);
  color: var(--color-cream);
  border-radius: 4px;
  font-family: inherit;
  transition: all var(--transition-fast);
}
.form-control:focus {
  outline: none;
  border-color: var(--color-accent);
  background: rgba(255,255,255,0.1);
}
textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.8);
  backdrop-filter: blur(5px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}
.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}
.modal {
  background: var(--color-cream);
  color: var(--color-brown-dark);
  padding: 3rem;
  border-radius: 8px;
  width: 100%;
  max-width: 500px;
  position: relative;
  transform: translateY(20px);
  transition: transform var(--transition-normal);
}
.modal-overlay.active .modal {
  transform: translateY(0);
}
.close-modal {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
  font-size: 2rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-brown-light);
}

/* Spinner */
.spinner {
  display: inline-block;
  width: 1.2rem;
  height: 1.2rem;
  border: 3px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 1s ease-in-out infinite;
  margin-left: 0.5rem;
  vertical-align: middle;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
.hidden {
  display: none !important;
}

/* Toast Notification */
#toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--color-brand-light);
  color: white;
  padding: 1rem 2rem;
  border-radius: 4px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--transition-normal);
  z-index: 2000;
}
#toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* Footer */
footer {
  background-color: #1a120c;
  color: rgba(255,255,255,0.6);
  text-align: center;
  padding: 2rem;
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 900px) {
  .about-grid, .contact-grid {
    grid-template-columns: 1fr;
  }
  .nav-links {
    display: none; /* simple hidden mobile menu for now */
  }
}