/* ===================================
   LiamVisualsZa - Modern Design System
   =================================== */

/* CSS Variables - Design Tokens */
:root {
  /* Colors */
  --color-bg-primary: #0a0a0a;
  --color-bg-secondary: #1a1a1a;
  --color-bg-tertiary: #2a2a2a;
  --color-text-primary: #ffffff;
  --color-text-secondary: #b0b0b0;
  --color-accent-primary: #06b6d4;
  --color-accent-secondary: #0891b2;
  --color-accent-gradient: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 3rem;
  --font-size-4xl: 4rem;

  /* Effects */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --blur-glass: blur(12px);
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ===================================
   Reset & Base Styles
   =================================== */

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

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

body {
  font-family: var(--font-primary);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

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

/* ===================================
   Typography
   =================================== */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: var(--font-size-4xl);
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 {
  font-size: var(--font-size-3xl);
}

h3 {
  font-size: var(--font-size-2xl);
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-secondary);
}

/* ===================================
   Navigation
   =================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: var(--blur-glass);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: background var(--transition-normal);
}

.navbar.scrolled {
  background: rgba(10, 10, 10, 0.95);
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-size: var(--font-size-xl);
  font-weight: 700;
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
}

.nav-link {
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 8px;
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  background: rgba(6, 182, 212, 0.1);
}

.nav-link.active {
  color: var(--color-accent-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 2px;
  background: var(--color-accent-gradient);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-primary);
  font-size: var(--font-size-xl);
  cursor: pointer;
}

/* ===================================
   Hero Section
   =================================== */

.hero {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.3) 0%, rgba(10, 10, 10, 0.8) 100%);
  z-index: -1;
}

.hero-content {
  text-align: center;
  max-width: 900px;
  padding: var(--spacing-md);
  animation: fadeInUp 1s ease;
}

.hero-title {
  font-size: clamp(2.5rem, 8vw, 5rem);
  margin-bottom: var(--spacing-md);
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-lg);
}

.hero-cta {
  display: inline-flex;
  gap: var(--spacing-sm);
}

/* ===================================
   Buttons
   =================================== */

.btn {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: 12px;
  font-weight: 600;
  font-size: var(--font-size-base);
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
  display: inline-block;
  text-align: center;
}

.btn-primary {
  background: var(--color-accent-gradient);
  color: white;
  box-shadow: 0 4px 16px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(6, 182, 212, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-text-primary);
  border: 2px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: var(--blur-glass);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--color-accent-primary);
}

/* ===================================
   Sections
   =================================== */

section {
  padding: var(--spacing-xl) var(--spacing-md);
  position: relative;
}

.section-container {
  max-width: 1400px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.section-title {
  margin-bottom: var(--spacing-sm);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 700px;
  margin: 0 auto;
}

/* ===================================
   Glass Cards
   =================================== */

.glass-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: var(--blur-glass);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: var(--spacing-md);
  transition: all var(--transition-normal);
}

.glass-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(6, 182, 212, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* ===================================
   Services Section
   =================================== */

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.service-card {
  text-align: center;
}

.service-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.service-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
}

.service-description {
  color: var(--color-text-secondary);
}

/* ===================================
   Portfolio Section
   =================================== */

.portfolio-filters {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.filter-btn {
  padding: var(--spacing-xs) var(--spacing-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--color-accent-gradient);
  color: white;
  border-color: transparent;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--spacing-md);
}

.portfolio-item {
  position: relative;
  overflow: hidden;
  border-radius: 16px;
  aspect-ratio: 4/3;
  cursor: pointer;
  transition: transform var(--transition-normal);
}

.portfolio-item:hover {
  transform: scale(1.02);
}

.portfolio-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.portfolio-item:hover img {
  transform: scale(1.1);
}

.portfolio-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-md);
  background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
  transform: translateY(100%);
  transition: transform var(--transition-normal);
}

.portfolio-item:hover .portfolio-overlay {
  transform: translateY(0);
}

.portfolio-category {
  font-size: 0.875rem;
  color: var(--color-accent-primary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ===================================
   Pricing Section
   =================================== */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-md);
  max-width: 900px;
  margin: var(--spacing-lg) auto 0;
}

.pricing-card {
  position: relative;
  overflow: hidden;
}

.pricing-card.featured {
  border: 2px solid var(--color-accent-primary);
  transform: scale(1.05);
}

.pricing-badge {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  background: var(--color-accent-gradient);
  color: white;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 24px;
  font-size: 0.875rem;
  font-weight: 600;
}

.pricing-header {
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.pricing-title {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-xs);
}

.pricing-price {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  background: var(--color-accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.pricing-features {
  list-style: none;
  margin-bottom: var(--spacing-md);
}

.pricing-features li {
  padding: var(--spacing-xs) 0;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.pricing-features li::before {
  content: '✓';
  color: var(--color-accent-primary);
  font-weight: 700;
  font-size: var(--font-size-lg);
}

/* ===================================
   About Section
   =================================== */

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.about-text h3 {
  margin-top: var(--spacing-md);
  color: var(--color-accent-primary);
}

.about-image {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

/* ===================================
   Contact Section
   =================================== */

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  max-width: 1200px;
  margin: 0 auto;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  transition: all var(--transition-fast);
}

.contact-item:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateX(8px);
}

.contact-icon {
  font-size: var(--font-size-2xl);
  color: var(--color-accent-primary);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.form-group label {
  color: var(--color-text-secondary);
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  padding: var(--spacing-sm);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  color: var(--color-text-primary);
  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent-primary);
  background: rgba(255, 255, 255, 0.08);
}

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

/* ===================================
   Footer
   =================================== */

footer {
  background: var(--color-bg-secondary);
  padding: var(--spacing-lg) var(--spacing-md) var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  align-items: start;
}

.footer-section h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--color-accent-primary);
}

.footer-section p,
.footer-section a {
  color: var(--color-text-secondary);
  display: block;
  margin-bottom: var(--spacing-xs);
}

.social-links {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
}

.social-link {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
  transition: all var(--transition-fast);
  font-size: var(--font-size-lg);
  text-decoration: none;
}

.social-link i {
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.social-link:hover {
  background: var(--color-accent-gradient);
  transform: translateY(-4px);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-text-secondary);
}

/* ===================================
   Animations
   =================================== */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

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

.fade-in {
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
}

.fade-in-delay-1 {
  animation-delay: 0.2s;
}

.fade-in-delay-2 {
  animation-delay: 0.4s;
}

.fade-in-delay-3 {
  animation-delay: 0.6s;
}

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 1024px) {

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

@media (max-width: 768px) {
  :root {
    --font-size-4xl: 2.5rem;
    --font-size-3xl: 2rem;
    --font-size-2xl: 1.5rem;
  }

  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    flex-direction: column;
    background: rgba(10, 10, 10, 0.98);
    width: 100%;
    padding: var(--spacing-md);
    transition: left var(--transition-normal);
    box-shadow: var(--shadow-lg);
  }

  .nav-menu.active {
    left: 0;
  }

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

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

  .pricing-card.featured {
    transform: scale(1);
  }

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

  .footer-content {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
  }
}

@media (max-width: 480px) {
  .footer-content {
    grid-template-columns: 1fr;
  }
}

/* ===================================
   Utility Classes
   =================================== */

.text-center {
  text-align: center;
}

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

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}