/* 
* Main Stylesheet for dessiai.pro
* Modern, minimalist design with focus on performance and aesthetics
*/

/* CSS Reset and Base Styles */
:root {
  --primary: #00C9FF;
  --primary-gradient: linear-gradient(135deg, #00C9FF, #92FE9D);
  --dark: #121212;
  --light: #f8f9fa;
  --light-gray: #e9ecef;
  --gray: #6c757d;
  --card-bg: #1e1e1e;
  --text: #ffffff;
  --accent: #92FE9D;
  --transition: all 0.3s ease;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  --radius: 12px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--dark);
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin-bottom: 1rem;
  font-weight: 700;
  line-height: 1.2;
}

h1 {
  font-size: 3rem;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: 2.2rem;
  margin-bottom: 1rem;
  text-align: center;
}

h3 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

p {
  margin-bottom: 1rem;
}

.accent {
  color: var(--primary);
  background: var(--primary-gradient);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

.subtitle {
  text-align: center;
  color: var(--gray);
  margin-bottom: 3rem;
  font-size: 1.1rem;
}

/* Header Styles */
header {
  padding: 20px 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(18, 18, 18, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo a {
  display: flex;
  align-items: center;
  color: var(--text);
  font-size: 1.5rem;
  font-weight: 700;
}

.logo-icon {
  margin-right: 10px;
}

.pro {
  color: var(--primary);
}

.menu {
  display: flex;
  gap: 30px;
}

.menu li a {
  color: var(--text);
  font-weight: 500;
  position: relative;
}

.menu li a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  background: var(--primary-gradient);
  bottom: -5px;
  left: 0;
  transition: var(--transition);
}

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

.menu-toggle {
  display: none;
  cursor: pointer;
  width: 30px;
  height: 30px;
  position: relative;
}

.hamburger {
  width: 30px;
  height: 3px;
  background-color: var(--text);
  position: relative;
  transition: var(--transition);
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  width: 30px;
  height: 3px;
  background-color: var(--text);
  transition: var(--transition);
}

.hamburger::before {
  transform: translateY(-10px);
}

.hamburger::after {
  transform: translateY(10px);
}

.menu-toggle.active .hamburger {
  background-color: transparent;
}

.menu-toggle.active .hamburger::before {
  transform: rotate(45deg);
}

.menu-toggle.active .hamburger::after {
  transform: rotate(-45deg);
}

/* Hero Section */
.hero {
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 25% 25%, rgba(0, 201, 255, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero .container {
  display: flex;
  align-items: center;
  gap: 60px;
}

.hero-content {
  flex: 1;
  z-index: 1;
}

.hero-content h1 {
  margin-bottom: 20px;
}

.hero-content p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  color: var(--gray);
}

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

.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition);
  text-align: center;
}

.btn.primary {
  background: var(--primary-gradient);
  color: var(--dark);
}

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

.btn.primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(0, 201, 255, 0.2);
}

.btn.secondary:hover {
  background-color: rgba(0, 201, 255, 0.1);
}

.btn.large {
  padding: 16px 36px;
  font-size: 1.1rem;
}

.hero-visual {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.tech-graphic {
  width: 100%;
  max-width: 500px;
}

/* Features Section */
.features {
  padding: 100px 0;
  background-color: rgba(30, 30, 30, 0.7);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.feature-card {
  background-color: var(--card-bg);
  border-radius: var(--radius);
  padding: 30px;
  transition: var(--transition);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow);
  border-color: var(--primary);
}

.feature-icon {
  width: 60px;
  height: 60px;
  margin-bottom: 20px;
  color: var(--primary);
}

/* Examples/Process Section */
.examples {
  padding: 100px 0;
}

.process-steps {
  margin-top: 50px;
}

.process-step {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 40px;
  position: relative;
}

.step-number {
  width: 50px;
  height: 50px;
  background: var(--primary-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: bold;
  color: var(--dark);
  flex-shrink: 0;
}

.step-content {
  flex: 1;
}

.process-step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 50px;
  left: 25px;
  width: 2px;
  height: calc(100% + 20px);
  background: linear-gradient(to bottom, var(--primary), transparent);
}

/* AI Tech Section */
.ai-tech {
  padding: 100px 0;
  background-color: rgba(30, 30, 30, 0.7);
}

.tech-details {
  margin-top: 50px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.tech-detail {
  background-color: var(--card-bg);
  border-radius: var(--radius);
  padding: 30px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.tech-detail h3 {
  color: var(--primary);
}

.tech-visual {
  margin-top: 60px;
  display: flex;
  justify-content: center;
  overflow-x: auto;
  padding: 20px 0;
}

.arch-diagram {
  width: 100%;
  max-width: 800px;
}

/* Pricing Section */
.pricing {
  padding: 100px 0;
}

.price-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.price-card {
  background-color: var(--card-bg);
  border-radius: var(--radius);
  padding: 40px 30px;
  text-align: center;
  position: relative;
  transition: var(--transition);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.price-card.featured {
  border-color: var(--primary);
  transform: translateY(-10px);
  box-shadow: var(--shadow);
  z-index: 1;
}

.price-card h3 {
  font-size: 1.8rem;
  margin-bottom: 15px;
}

.price {
  font-size: 2.5rem;
  font-weight: bold;
  margin-bottom: 25px;
}

.price span {
  font-size: 1rem;
  color: var(--gray);
  font-weight: normal;
}

.best-value {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary-gradient);
  color: var(--dark);
  padding: 5px 15px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: bold;
}

.price-features {
  margin: 25px 0;
  text-align: left;
}

.price-features li {
  padding: 10px 0;
  display: flex;
  align-items: center;
}

.price-features li::before {
  content: '✓';
  color: var(--accent);
  margin-right: 10px;
}

.price-card .btn {
  width: 100%;
  margin-top: 20px;
}

/* CTA Section */
.cta {
  padding: 80px 0;
  text-align: center;
  background: linear-gradient(135deg, rgba(0, 201, 255, 0.1), rgba(146, 254, 157, 0.1));
}

.cta h2 {
  margin-bottom: 20px;
}

.cta p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  color: var(--gray);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* Footer */
footer {
  background-color: var(--dark);
  padding: 80px 0 30px;
  position: relative;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  margin-bottom: 60px;
}

.footer-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.footer-logo p {
  margin-top: 15px;
  font-weight: bold;
  background: var(--primary-gradient);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

.footer-links {
  display: flex;
  gap: 60px;
}

.footer-col h4 {
  color: var(--text);
  margin-bottom: 25px;
  position: relative;
  display: inline-block;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  width: 30px;
  height: 2px;
  background: var(--primary-gradient);
  bottom: -8px;
  left: 0;
}

.footer-col ul li {
  margin-bottom: 15px;
}

.footer-col ul li a {
  color: var(--gray);
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--primary);
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-bottom p {
  color: var(--gray);
  font-size: 0.9rem;
}

.disclaimer {
  margin-top: 5px;
  color: rgba(255, 255, 255, 0.5);
}

/* Responsive Design */
@media (max-width: 992px) {
  .hero .container {
    flex-direction: column;
  }
  
  .hero-content {
    text-align: center;
  }
  
  .cta-buttons {
    justify-content: center;
  }
  
  .footer-content {
    flex-direction: column;
    align-items: center;
    gap: 40px;
  }
  
  .footer-links {
    width: 100%;
    justify-content: space-between;
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  .menu-toggle {
    display: block;
  }
  
  .menu {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    height: 0;
    flex-direction: column;
    background-color: var(--dark);
    overflow: hidden;
    transition: height 0.3s ease;
    z-index: 999;
    gap: 0;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
  }
  
  .menu.active {
    height: auto;
    padding: 20px 0;
  }
  
  .menu li {
    width: 100%;
    text-align: center;
  }
  
  .menu li a {
    display: block;
    padding: 15px;
  }
  
  .menu li a::after {
    display: none;
  }
  
  .footer-links {
    flex-direction: column;
    gap: 30px;
    align-items: center;
  }
  
  .footer-col {
    text-align: center;
    width: 100%;
  }
  
  .footer-col h4::after {
    left: 50%;
    transform: translateX(-50%);
  }
}

@media (max-width: 576px) {
  .price-cards {
    grid-template-columns: 1fr;
  }
  
  .price-card.featured {
    transform: none;
    grid-row: 1;
  }
  
  .process-step {
    flex-direction: column;
  }
  
  .process-step:not(:last-child)::after {
    left: 25px;
    top: 70px;
    height: calc(100% - 50px);
  }
}