/* 
 * undressaipornVN.pw - CSS Styles
 * Designed for Vietnamese market
 * Fully responsive design for mobile and desktop
 */

:root {
  --primary-color: #da251d;    /* Vietnam flag red */
  --secondary-color: #ffff00;  /* Vietnam flag yellow */
  --tertiary-color: #612846;   /* Deep burgundy accent */
  --light-color: #ffffff;      /* White */
  --dark-color: #222222;       /* Dark Gray for text */
  --bg-color: #f5f5f5;         /* Light Gray background */
  --gradient-bg: linear-gradient(135deg, var(--primary-color), var(--tertiary-color));
  --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Roboto', 'Arial', sans-serif;
}

body {
  line-height: 1.6;
  color: var(--dark-color);
  background-color: var(--bg-color);
  overflow-x: hidden;
  font-size: 16px;
}

.container {
  width: 92%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 15px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin-bottom: 18px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--dark-color);
}

h1 {
  font-size: 2.6rem;
}

h2 {
  font-size: 2.1rem;
}

h3 {
  font-size: 1.7rem;
}

p {
  margin-bottom: 15px;
  font-size: 1.05rem;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: all 0.3s ease;
}

a:hover {
  color: var(--tertiary-color);
}

/* Button Styles */
.btn {
  display: inline-block;
  padding: 12px 28px;
  background: var(--primary-color);
  color: var(--light-color);
  border-radius: 4px;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.95rem;
  letter-spacing: 1px;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  box-shadow: var(--box-shadow);
}

.btn:hover {
  background: var(--tertiary-color);
  color: var(--light-color);
  transform: translateY(-3px);
}

.btn-alt {
  background: var(--tertiary-color);
}

.btn-alt:hover {
  background: var(--primary-color);
}

/* Header Styles */
.site-header {
  background: var(--light-color);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  position: fixed;
  width: 100%;
  top: 0;
  left: 0;
  z-index: 1000;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 0;
}

.logo {
  font-size: 1.6rem;
  font-weight: 800;
  display: flex;
  align-items: center;
}

.logo span {
  color: var(--primary-color);
}

.main-menu {
  display: flex;
  list-style: none;
}

.main-menu li {
  margin-left: 25px;
}

.main-menu a {
  font-weight: 500;
  position: relative;
}

.main-menu a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: width 0.3s ease;
}

.main-menu a:hover::after {
  width: 100%;
}

.menu-toggle {
  display: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--primary-color);
}

/* Banner Section */
.banner {
  background: var(--gradient-bg);
  color: var(--light-color);
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% 92%, 0 100%);
}

.banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 600 600'%3E%3Cpath fill='rgba(255,255,255,0.05)' d='M49.3-36.4c-55.9-25.2-120.8 39.4-98.2 98.1 29.6 76.9-32.3 139-96.4 162.6-122.2 45-64.3 171.8 31.5 113.3 82-50.1 119.1 38 141.5 99.5 23.5 64.4 132.5 33.2 98.6-47.3-24.3-57.6 69.7-102.4 98.1-42.6 27.4 57.5 102.4 14.4 104.6-33 1.8-38-24.3-69.9-66-74.4-85-9-94.2-118.9-9.8-138.5 95.7-22.2 48.1-135.9-33.6-106.2-75.2 27.4-108.4-46.1-59.1-92.4 33.6-31.6 0.4-97.1-70.8-56.8-33.1 18.7-39.6 48.4-37.7 78.2 2.1 33.3-29.7 53.6-42.7 43.3-10.7-8.6-5.1-35.5 11.4-56.1 18.9-23.7 28.6-61.1 9.9-82.5-25.1-28.9-54.9-10.7-82.3 24.8z'%3E%3C/path%3E%3C/svg%3E");
  background-size: cover;
  opacity: 0.2;
  z-index: 0;
}

.banner-content {
  position: relative;
  z-index: 1;
  max-width: 650px;
}

.banner-content h1 {
  font-size: 2.8rem;
  margin-bottom: 22px;
  color: var(--light-color);
}

.banner-content p {
  font-size: 1.15rem;
  margin-bottom: 30px;
}

.cta-buttons {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

/* Features Section */
.features {
  padding: 90px 0;
  background-color: var(--light-color);
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
  position: relative;
}

.section-title h2 {
  position: relative;
  display: inline-block;
  margin-bottom: 15px;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background-color: var(--primary-color);
}

.section-title p {
  max-width: 600px;
  margin: 0 auto;
  color: #666;
}

.features-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}

.feature-box {
  background: var(--light-color);
  border-radius: 5px;
  padding: 25px;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: var(--box-shadow);
  border-bottom: 3px solid transparent;
}

.feature-box:hover {
  transform: translateY(-5px);
  border-bottom: 3px solid var(--primary-color);
}

.feature-icon {
  margin: 0 auto 20px;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-box h3 {
  font-size: 1.3rem;
  margin-bottom: 15px;
  color: var(--dark-color);
}

/* How It Works Section */
.how-it-works {
  padding: 90px 0;
  background-color: var(--bg-color);
}

.steps-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.step-box {
  background: var(--light-color);
  border-radius: 5px;
  padding: 30px 25px;
  position: relative;
  box-shadow: var(--box-shadow);
}

.step-number {
  position: absolute;
  top: -15px;
  left: 25px;
  background: var(--primary-color);
  color: var(--light-color);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.step-box h3 {
  margin-top: 15px;
  color: var(--dark-color);
  font-size: 1.3rem;
}

.step-box p {
  color: #666;
}

/* About Section */
.about {
  padding: 90px 0;
  background-color: var(--light-color);
}

.about-flex {
  display: flex;
  align-items: center;
  gap: 40px;
}

.about-content {
  flex: 1;
}

.about-image {
  flex: 1;
}

.about-content h2 {
  margin-bottom: 20px;
}

.about-content p {
  margin-bottom: 20px;
  color: #444;
}

/* CTA Section */
.cta-section {
  background: var(--primary-color);
  color: var(--light-color);
  padding: 60px 0;
  text-align: center;
}

.cta-section h2 {
  color: var(--light-color);
  margin-bottom: 20px;
}

.cta-section p {
  max-width: 700px;
  margin: 0 auto 25px;
}

.cta-section .btn {
  background: var(--light-color);
  color: var(--primary-color);
  border: 2px solid var(--light-color);
}

.cta-section .btn:hover {
  background: transparent;
  color: var(--light-color);
}

/* Footer */
.site-footer {
  background: #232323;
  color: #aaa;
  padding: 60px 0 20px;
}

.footer-widgets {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-bottom: 40px;
}

.widget h3 {
  color: var(--light-color);
  position: relative;
  padding-bottom: 15px;
  margin-bottom: 20px;
  font-size: 1.4rem;
}

.widget h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background-color: var(--primary-color);
}

.widget p {
  color: #aaa;
  font-size: 0.95rem;
}

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

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: #aaa;
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: var(--secondary-color);
}

.footer-logo {
  display: block;
  margin-top: 20px;
}

.copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  text-align: center;
  font-size: 0.9rem;
}

/* Star Rating */
.rating {
  display: flex;
  margin-bottom: 15px;
  justify-content: center;
}

.rating svg {
  width: 20px;
  height: 20px;
  fill: var(--secondary-color);
  margin: 0 2px;
}

/* Responsive Styles */
@media (max-width: 992px) {
  .features-container,
  .steps-container {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .about-flex {
    flex-direction: column;
  }
  
  .about-image {
    order: -1;
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 2.2rem;
  }
  
  h2 {
    font-size: 1.8rem;
  }
  
  .main-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background-color: var(--light-color);
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding-top: 40px;
    transition: all 0.3s ease;
    z-index: 999;
  }
  
  .main-menu.active {
    left: 0;
  }
  
  .main-menu li {
    margin: 12px 0;
  }
  
  .menu-toggle {
    display: block;
  }
  
  .banner {
    padding: 120px 0 70px;
  }
  
  .banner-content {
    text-align: center;
    margin: 0 auto;
  }
  
  .cta-buttons {
    justify-content: center;
  }
  
  .features-container,
  .steps-container {
    grid-template-columns: 1fr;
  }
  
  .footer-widgets {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 10px;
  }
  
  .btn {
    padding: 10px 18px;
    font-size: 0.9rem;
    white-space: nowrap;
  }
  
  .banner-content h1 {
    font-size: 1.8rem;
  }
  
  .banner-content p {
    font-size: 1rem;
  }
}