/* =========================================
   ĐỒNG TÂM D&T COFFEE - MAIN STYLES
   Phong cách: Rustic Luxury
========================================= */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600&family=Playfair+Display:ital,wght@0,600;0,700;1,600&display=swap');

:root {
  --green-deep: #073b1d;
  --gold: #d4af37;
  --cream: #fdfbf7;
  --text-dark: #333333;
  --text-light: #f9f9f9;
  --font-heading: 'Playfair Display', serif;
  --font-body: 'Montserrat', sans-serif;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--cream);
  color: var(--text-dark);
  line-height: 1.6;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

/* --- TYPOGRAPHY --- */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--green-deep);
  margin-bottom: 15px;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 40px;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background-color: var(--gold);
  margin: 15px auto 0;
}

/* --- HEADER & NAVIGATION --- */
header {
  background-color: var(--green-deep);
  color: var(--cream);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 15px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 1px;
}

.nav-links {
  display: flex;
  gap: 30px;
}

.nav-links a {
  font-weight: 500;
  font-size: 0.9rem;
  text-transform: uppercase;
  transition: color 0.3s;
}

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

.mobile-menu-btn {
  display: none;
  font-size: 1.5rem;
  background: none;
  border: none;
  color: var(--gold);
  cursor: pointer;
}

/* --- BUTTONS --- */
.btn {
  display: inline-block;
  padding: 12px 28px;
  background-color: var(--gold);
  color: var(--green-deep);
  font-weight: 600;
  text-transform: uppercase;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn:hover {
  background-color: #b8962e;
  transform: translateY(-2px);
}

.btn-outline {
  background-color: transparent;
  color: var(--gold);
  border: 2px solid var(--gold);
}

.btn-outline:hover {
  background-color: var(--gold);
  color: var(--green-deep);
}

/* --- HERO SECTION (Trang Chủ) --- */
.hero {
  background: linear-gradient(rgba(7, 59, 29, 0.7), rgba(7, 59, 29, 0.8)), url('https://images.unsplash.com/photo-1447933601403-0c6688de566e?q=80&w=1920&auto=format&fit=crop') center/cover;
  height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--cream);
  padding: 0 20px;
}

.hero-content h1 {
  font-size: 4rem;
  color: var(--gold);
  margin-bottom: 20px;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.hero-content p {
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto 30px;
}

/* --- FEATURES BAR --- */
.features {
  background-color: var(--green-deep);
  color: var(--cream);
  padding: 40px 20px;
}

.features-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}

.feature-item h3 {
  color: var(--gold);
  font-size: 1.2rem;
  margin-bottom: 5px;
}

.feature-item p {
  font-size: 0.9rem;
  opacity: 0.8;
}

/* --- PRODUCT GRID --- */
.products-section {
  padding: 80px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.product-card {
  background: #fff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0,0,0,0.05);
  transition: transform 0.3s ease;
  text-align: center;
  padding-bottom: 20px;
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.product-card img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.product-card h3 {
  font-size: 1.2rem;
  margin: 15px 0 5px;
}

.product-price {
  color: var(--gold);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 15px;
}

/* --- PAGE HEADER (Cho các trang con) --- */
.page-header {
  background: linear-gradient(rgba(7, 59, 29, 0.8), rgba(7, 59, 29, 0.9)), url('https://images.unsplash.com/photo-1559525839-b184a4d698c7?q=80&w=1920&auto=format&fit=crop') center/cover;
  padding: 80px 20px;
  text-align: center;
  color: var(--cream);
}

.page-header h1 {
  color: var(--gold);
  font-size: 3rem;
}

/* --- ABOUT PAGE --- */
.about-content {
  max-width: 1000px;
  margin: 60px auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.about-content img {
  width: 100%;
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.about-text p {
  margin-bottom: 15px;
}

/* --- CONTACT PAGE --- */
.contact-container {
  max-width: 1200px;
  margin: 60px auto;
  padding: 0 20px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}

.contact-info iframe {
  width: 100%;
  height: 300px;
  border: none;
  border-radius: 8px;
  margin-top: 20px;
}

.contact-form form {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.contact-form input, .contact-form textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-family: var(--font-body);
}

.contact-form input:focus, .contact-form textarea:focus {
  outline: none;
  border-color: var(--gold);
}

/* --- FOOTER --- */
footer {
  background-color: var(--green-deep);
  color: var(--cream);
  padding: 60px 20px 20px;
  margin-top: 50px;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h3 {
  color: var(--gold);
  margin-bottom: 20px;
  font-size: 1.2rem;
}

.footer-col p {
  font-size: 0.9rem;
  opacity: 0.8;
  margin-bottom: 10px;
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.8rem;
  opacity: 0.7;
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
    background-color: var(--green-deep);
    position: absolute;
    top: 60px;
    left: 0;
    padding: 20px;
    text-align: center;
  }
  
  .nav-links.active {
    display: flex;
  }

  .mobile-menu-btn {
    display: block;
  }

  .hero-content h1 {
    font-size: 2.5rem;
  }

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

  .about-content, .contact-container {
    grid-template-columns: 1fr;
  }

  .footer-container {
    grid-template-columns: 1fr;
    text-align: center;
  }
}