/* ============================================
   DJSND.COM - Global Styles
   Mobile-first responsive design
   ============================================ */

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

:root {
  --primary-color: #ff1744;
  --secondary-color: #1a1a2e;
  --accent-color: #ffd700;
  --text-light: #ffffff;
  --text-dark: #333333;
  --bg-light: #f5f5f5;
  --bg-dark: #1a1a2e;
  --border-color: #ddd;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.2);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--bg-light);
}

/* ============================================
   NAVIGATION & HEADER
   ============================================ */

header {
  background-color: var(--secondary-color);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.logo {
  font-size: 1.8rem;
  font-weight: bold;
  color: var(--primary-color);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo span {
  font-size: 2rem;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 1.5rem;
  cursor: pointer;
  z-index: 1001;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
}

nav a {
  color: var(--text-light);
  text-decoration: none;
  transition: color 0.3s ease;
  font-weight: 500;
}

nav a:hover {
  color: var(--primary-color);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  background: linear-gradient(135deg, var(--secondary-color) 0%, #2d2d44 100%);
  color: var(--text-light);
  padding: 3rem 1rem;
  text-align: center;
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 23, 68, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  animation: fadeInDown 0.8s ease;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  opacity: 0.9;
  animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.4s backwards;
}

.btn {
  padding: 0.75rem 2rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-block;
}

.btn-primary {
  background-color: var(--primary-color);
  color: var(--text-light);
}

.btn-primary:hover {
  background-color: #e80032;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background-color: var(--accent-color);
  color: var(--secondary-color);
}

.btn-secondary:hover {
  background-color: #ffed4e;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* ============================================
   CONTAINER & SECTIONS
   ============================================ */

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

section {
  padding: 3rem 1rem;
}

.section-title {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 3rem;
  color: var(--secondary-color);
  position: relative;
  padding-bottom: 1rem;
}

.section-title::after {
  content: '';
  position: absolute;
  width: 100px;
  height: 4px;
  background-color: var(--primary-color);
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 2px;
}

/* ============================================
   PRODUCT CARDS
   ============================================ */

.products-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 2rem;
}

.product-card {
  background: white;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.product-image {
  width: 100%;
  height: 250px;
  background: linear-gradient(135deg, #ddd, #e8e8e8);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #999;
  font-size: 3rem;
}

.product-info {
  padding: 1.5rem;
}

.product-category {
  color: var(--primary-color);
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.product-name {
  font-size: 1.3rem;
  font-weight: bold;
  color: var(--secondary-color);
  margin-bottom: 0.5rem;
}

.product-description {
  color: #666;
  font-size: 0.95rem;
  margin-bottom: 1rem;
  line-height: 1.5;
}

.product-price {
  font-size: 1.5rem;
  color: var(--primary-color);
  font-weight: bold;
}

/* ============================================
   CONTACT SECTION
   ============================================ */

.contact-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.contact-info {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.contact-item {
  margin-bottom: 2rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.contact-icon {
  width: 50px;
  height: 50px;
  background-color: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.contact-details h3 {
  color: var(--secondary-color);
  margin-bottom: 0.5rem;
}

.contact-details p {
  color: #666;
}

.contact-details a {
  color: var(--primary-color);
  text-decoration: none;
}

.contact-details a:hover {
  text-decoration: underline;
}

.contact-form {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--secondary-color);
  font-weight: 600;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  font-family: inherit;
  font-size: 1rem;
}

.form-group textarea {
  resize: vertical;
  min-height: 150px;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(255, 23, 68, 0.1);
}

/* ============================================
   GALLERY SECTION
   ============================================ */

.gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 2rem;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #ddd, #e8e8e8);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.gallery-item:hover {
  transform: scale(1.05);
}

.gallery-item-text {
  color: #999;
  font-size: 2rem;
}

/* ============================================
   ABOUT SECTION
   ============================================ */

.about-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

.about-text h2 {
  font-size: 2rem;
  color: var(--secondary-color);
  margin-bottom: 1rem;
}

.about-text p {
  color: #666;
  margin-bottom: 1rem;
  line-height: 1.8;
}

.about-image {
  width: 100%;
  height: 300px;
  background: linear-gradient(135deg, #ddd, #e8e8e8);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #999;
  font-size: 3rem;
}

/* ============================================
   FEATURES
   ============================================ */

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 2rem;
}

.feature-card {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  color: var(--secondary-color);
  margin-bottom: 0.5rem;
}

.feature-card p {
  color: #666;
  line-height: 1.6;
}

/* ============================================
   FOOTER
   ============================================ */

footer {
  background-color: var(--secondary-color);
  color: var(--text-light);
  padding: 3rem 1rem 1rem;
  margin-top: 4rem;
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  padding-bottom: 2rem;
}

.footer-section h3 {
  color: var(--primary-color);
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.footer-section p {
  opacity: 0.9;
  line-height: 1.8;
}

.footer-section a {
  color: var(--text-light);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: var(--primary-color);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-links a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  text-align: center;
  opacity: 0.8;
}

/* ============================================
   404 PAGE
   ============================================ */

.error-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
  text-align: center;
}

.error-content h1 {
  font-size: 5rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.error-content p {
  font-size: 1.3rem;
  color: #666;
  margin-bottom: 2rem;
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   TABLET RESPONSIVE (768px and up)
   ============================================ */

@media (min-width: 768px) {
  .hero h1 {
    font-size: 3.5rem;
  }

  .hero p {
    font-size: 1.3rem;
  }

  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-content {
    grid-template-columns: repeat(3, 1fr);
  }

  nav ul {
    gap: 3rem;
  }

  section {
    padding: 4rem 1rem;
  }

  .menu-toggle {
    display: none;
  }
}

/* ============================================
   DESKTOP RESPONSIVE (1024px and up)
   ============================================ */

@media (min-width: 1024px) {
  .hero h1 {
    font-size: 4rem;
  }

  .products-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .features-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .footer-content {
    grid-template-columns: repeat(4, 1fr);
  }

  section {
    padding: 5rem 2rem;
  }

  .section-title {
    font-size: 2.5rem;
  }
}

/* ============================================
   MOBILE MENU (max-width: 767px)
   ============================================ */

@media (max-width: 767px) {
  .menu-toggle {
    display: block;
  }

  nav {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background-color: var(--secondary-color);
    padding: 1rem;
    box-shadow: var(--shadow);
  }

  nav.active {
    display: block;
  }

  nav ul {
    flex-direction: column;
    gap: 1rem;
  }

  nav a {
    display: block;
    padding: 0.5rem 0;
  }

  .hero {
    padding: 2rem 1rem;
    min-height: 300px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .hero-buttons {
    flex-direction: column;
    gap: 0.5rem;
  }

  .btn {
    width: 100%;
  }

  .product-image {
    height: 200px;
  }

  .section-title {
    font-size: 1.5rem;
  }
}