/* SURMA BUILDERS BD LTD - Mobile App & Product Design Studio
   Modern glassmorphism design with asymmetric layouts and animated gradients */

:root {
  --primary-color: #6366f1;
  --secondary-color: #8b5cf6;
  --accent-color: #06b6d4;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --background: #f8fafc;
  --glass-bg: rgba(255, 255, 255, 0.25);
  --glass-border: rgba(255, 255, 255, 0.18);
  --shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
  --border-radius: 20px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Glassmorphism container */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1rem 2rem;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: white;
  text-decoration: none;
  letter-spacing: -0.02em;
}

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

.nav-menu a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  transition: opacity 0.3s ease;
}

.nav-menu a:hover {
  opacity: 0.8;
}

/* Hero Section */
.hero {
  padding: 8rem 2rem 4rem;
  text-align: center;
  max-width: 1200px;
  margin: 0 auto;
}

.hero-content {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  padding: 4rem 2rem;
  border-radius: var(--border-radius);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow);
  margin-bottom: 2rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  color: white;
  margin-bottom: 1.5rem;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.hero p {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-button {
  display: inline-block;
  background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
  color: white;
  padding: 1rem 2rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: none;
  cursor: pointer;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
}

/* Services Grid */
.services {
  padding: 4rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.services h2 {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 700;
  color: white;
  margin-bottom: 3rem;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.service-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  padding: 2rem;
  border-radius: var(--border-radius);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow);
  transition: transform 0.3s ease;
}

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

.service-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: white;
  margin-bottom: 1rem;
}

.service-card p {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
}

/* About Section */
.about {
  padding: 4rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.about-content {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  padding: 3rem;
  border-radius: var(--border-radius);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about-text h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: white;
  margin-bottom: 1.5rem;
}

.about-text p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.stat {
  text-align: center;
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 15px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-color);
  display: block;
}

.stat-label {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

/* Contact Form */
.contact {
  padding: 4rem 2rem;
  max-width: 800px;
  margin: 0 auto;
}

.contact h2 {
  text-align: center;
  font-size: 2.5rem;
  font-weight: 700;
  color: white;
  margin-bottom: 3rem;
}

.contact-form {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  padding: 3rem;
  border-radius: var(--border-radius);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow);
}

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

.form-group label {
  display: block;
  color: white;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.1);
  color: white;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

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

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* Footer */
.footer {
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(10px);
  padding: 3rem 2rem 2rem;
  margin-top: 4rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
}

.footer-section h3 {
  color: white;
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.footer-section p,
.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  line-height: 1.6;
}

.footer-section a:hover {
  color: white;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 2rem;
  padding-top: 2rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.6);
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(10px);
  padding: 1.5rem 2rem;
  z-index: 1001;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.cookie-banner.show {
  transform: translateY(0);
}

.cookie-banner.minimized {
  transform: translateY(calc(100% - 60px));
}

.cookie-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.cookie-text {
  flex: 1;
  color: white;
  font-size: 0.9rem;
  line-height: 1.5;
}

.cookie-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.cookie-btn {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 25px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}

.cookie-btn.accept {
  background: var(--primary-color);
  color: white;
}

.cookie-btn.decline {
  background: transparent;
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.cookie-btn.customize {
  background: var(--accent-color);
  color: white;
}

.cookie-btn:hover {
  opacity: 0.8;
  transform: translateY(-1px);
}

.cookie-minimize {
  position: absolute;
  top: 1rem;
  right: 2rem;
  background: none;
  border: none;
  color: white;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0.5rem;
}

/* Mobile Menu Toggle Button */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 30px;
  height: 30px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.hamburger-line {
  width: 100%;
  height: 3px;
  background: white;
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: center;
}

/* Mobile menu toggle animation */
.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile Navigation Overlay */
.nav-menu {
  display: flex;
  list-style: none;
  gap: 2rem;
  transition: all 0.3s ease;
}

.nav-menu.mobile-open {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(20px);
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 3rem;
  z-index: 1000;
  padding: 2rem;
  display: flex;
  width: 100vw;
  height: 100vh;
  margin: 0;
}

.nav-menu.mobile-open li {
  opacity: 0;
  transform: translateY(20px);
  animation: slideInUp 0.3s ease forwards;
}

.nav-menu.mobile-open li:nth-child(1) { animation-delay: 0.1s; }
.nav-menu.mobile-open li:nth-child(2) { animation-delay: 0.2s; }
.nav-menu.mobile-open li:nth-child(3) { animation-delay: 0.3s; }

.nav-menu.mobile-open a {
  font-size: 1.5rem;
  font-weight: 600;
  padding: 1rem 2rem;
  border-radius: 10px;
  transition: all 0.3s ease;
  display: block;
  text-align: center;
  min-width: 200px;
  background: rgba(0, 0, 0, 0.8);
  color: white;
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.nav-menu.mobile-open a:hover {
  background: rgba(0, 0, 0, 1);
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.4);
}

@keyframes slideInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: flex;
  }
  
  .nav-menu {
    display: none;
  }
  
  .nav-menu.mobile-open {
    display: flex;
  }
  
  .hero {
    padding: 6rem 1rem 3rem;
  }
  
  .hero-content {
    padding: 2rem 1rem;
  }
  
  .about-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .about-stats {
    grid-template-columns: 1fr;
  }
  
  .cookie-content {
    flex-direction: column;
    text-align: center;
  }
  
  .cookie-buttons {
    justify-content: center;
  }
  
  .cookie-minimize {
    position: static;
    margin-top: 1rem;
  }
}

@media (max-width: 480px) {
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-form {
    padding: 2rem 1rem;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .nav-menu.mobile-open a {
    font-size: 1.25rem;
    min-width: 150px;
    padding: 0.8rem 1.5rem;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
  }
  
  .nav-menu.mobile-open a:hover {
    background: rgba(0, 0, 0, 1);
    border-color: rgba(255, 255, 255, 0.4);
  }
  
  .logo {
    font-size: 1.2rem;
  }
  
  .mobile-menu-toggle {
    width: 25px;
    height: 25px;
  }
  
  .hamburger-line {
    height: 2px;
  }
}

@media (max-width: 360px) {
  .header {
    padding: 0.8rem 1rem;
  }
  
  .logo {
    font-size: 1rem;
  }
  
  .nav-menu.mobile-open a {
    font-size: 1.1rem;
    min-width: 120px;
    padding: 0.7rem 1.2rem;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
  }
  
  .nav-menu.mobile-open a:hover {
    background: rgba(0, 0, 0, 1);
    border-color: rgba(255, 255, 255, 0.4);
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus styles for keyboard navigation */
a:focus,
button:focus,
input:focus,
textarea:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}