/* ========================================
   MODERN PORTFOLIO DESIGN - CUSTOM STYLES
   ======================================== */

/* Import Modern Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Playfair+Display:wght@600;700;800&display=swap');

/* CSS Variables for Easy Theming */
:root {
  /* Color Palette - Modern & Professional */
  --primary-color: #2D3748;
  --secondary-color: #4A5568;
  --accent-color: #667EEA;
  --accent-hover: #5A67D8;
  --background-light: #F7FAFC;
  --background-white: #FFFFFF;
  --text-dark: #1A202C;
  --text-medium: #4A5568;
  --text-light: #718096;
  --border-color: #E2E8F0;
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Playfair Display', Georgia, serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  --spacing-2xl: 6rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ========================================
   GLOBAL RESETS & BASE STYLES
   ======================================== */

* {
  box-sizing: border-box;
}

body {
  font-family: var(--font-primary);
  color: var(--text-dark);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

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

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--text-medium);
  font-size: 1.0625rem;
  line-height: 1.8;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-lg);
  position: relative;
  padding-bottom: var(--spacing-sm);
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-color), var(--accent-hover));
  border-radius: 2px;
}

/* ========================================
   BUTTONS
   ======================================== */

.btn-primary,
.btn-secondary,
.btn-link {
  display: inline-block;
  padding: 0.875rem 2rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  font-size: 1rem;
  text-align: center;
  cursor: pointer;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--accent-color);
  color: white;
  box-shadow: var(--shadow-md);
}

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

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

.btn-secondary:hover {
  background: var(--accent-color);
  color: white;
  transform: translateY(-2px);
}

.btn-link {
  background: transparent;
  color: var(--accent-color);
  padding: 0.5rem 0;
  font-weight: 600;
  border: none;
}

.btn-link:hover {
  color: var(--accent-hover);
  transform: translateX(5px);
}

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

.hero-section {
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(135deg, #667EEA 0%, #764BA2 100%);
  color: white;
  position: relative;
  overflow: hidden;
  margin-top: -20px;
  padding: var(--spacing-2xl) var(--spacing-md);
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="white" stroke-width="0.5" opacity="0.1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  animation: fadeInUp 1s ease;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  margin-bottom: var(--spacing-sm);
  color: white;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
  font-size: clamp(1.25rem, 3vw, 2rem);
  font-weight: 500;
  margin-bottom: var(--spacing-md);
  color: rgba(255, 255, 255, 0.95);
  font-family: var(--font-primary);
}

.hero-description {
  font-size: clamp(1rem, 2vw, 1.25rem);
  margin-bottom: var(--spacing-lg);
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.8;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-lg);
}

.hero-cta .btn-primary {
  background: white;
  color: var(--accent-color);
}

.hero-cta .btn-primary:hover {
  background: var(--background-light);
  color: var(--accent-hover);
}

.hero-cta .btn-secondary {
  border-color: white;
  color: white;
}

.hero-cta .btn-secondary:hover {
  background: white;
  color: var(--accent-color);
}

/* ========================================
   WHAT I DO SECTION
   ======================================== */

.what-i-do {
  padding: var(--spacing-2xl) 0;
  background: var(--background-white);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.service-card {
  background: var(--background-white);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  border: 2px solid var(--border-color);
  transition: all var(--transition-normal);
  text-align: center;
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--accent-color);
}

.service-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
  display: inline-block;
}

.service-card h3 {
  color: var(--text-dark);
  margin-bottom: var(--spacing-sm);
  font-size: 1.5rem;
}

.service-card p {
  color: var(--text-light);
  font-size: 0.9375rem;
  line-height: 1.7;
}

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

.about-preview {
  padding: var(--spacing-2xl) 0;
  background: var(--background-light);
}

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

.about-text h2 {
  text-align: left;
}

.about-text h2::after {
  left: 0;
  transform: none;
}

.about-text p {
  font-size: 1.0625rem;
  line-height: 1.8;
  margin-bottom: var(--spacing-sm);
}

.about-image {
  position: relative;
}

.about-image img {
  width: 100%;
  max-width: 400px;
  height: auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  margin: 0 auto;
  display: block;
}

@media (max-width: 768px) {
  .about-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }
  
  .about-text h2::after {
    left: 50%;
    transform: translateX(-50%);
  }
}

/* ========================================
   SKILLS SECTION
   ======================================== */

.skills-section {
  padding: var(--spacing-2xl) 0;
  background: var(--background-white);
}

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

.skill-category h3 {
  color: var(--text-dark);
  margin-bottom: var(--spacing-sm);
  font-size: 1.25rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.skill-tag {
  background: var(--background-light);
  color: var(--text-medium);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}

.skill-tag:hover {
  background: var(--accent-color);
  color: white;
  border-color: var(--accent-color);
  transform: translateY(-2px);
}

/* ========================================
   FEATURED PROJECTS SECTION
   ======================================== */

.featured-projects {
  padding: var(--spacing-2xl) 0;
  background: var(--background-light);
}

.projects-preview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.project-preview-card {
  background: var(--background-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.project-preview-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.project-preview-card img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project-preview-card:hover img {
  transform: scale(1.05);
}

.project-preview-content {
  padding: var(--spacing-md);
}

.project-preview-content h3 {
  margin-bottom: var(--spacing-xs);
  color: var(--text-dark);
  font-size: 1.5rem;
}

.project-preview-content p {
  color: var(--text-light);
  margin-bottom: var(--spacing-sm);
  font-size: 0.9375rem;
}

/* ========================================
   CTA SECTION
   ======================================== */

.cta-section {
  padding: var(--spacing-2xl) 0;
  background: linear-gradient(135deg, #667EEA 0%, #764BA2 100%);
  text-align: center;
  color: white;
}

.cta-section h2 {
  color: white;
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: var(--spacing-sm);
}

.cta-section p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.125rem;
  margin-bottom: var(--spacing-lg);
}

.cta-section .btn-primary {
  background: white;
  color: var(--accent-color);
  font-size: 1.125rem;
  padding: 1rem 2.5rem;
}

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

/* ========================================
   PROJECT CARDS (For Projects Page)
   ======================================== */

.project-card,
.project {
  background: var(--background-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  border: 1px solid var(--border-color);
}

.project-card:hover,
.project:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: var(--accent-color);
}

.project-card h3,
.project h3 {
  color: var(--text-dark);
  margin-bottom: var(--spacing-sm);
  font-size: 1.5rem;
}

.project-card p,
.project p {
  color: var(--text-medium);
  line-height: 1.8;
  margin-bottom: var(--spacing-sm);
}

.project-card img,
.project img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  margin-top: var(--spacing-sm);
  transition: transform var(--transition-normal);
}

.project-card img:hover,
.project img:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-lg);
}

.project-card a,
.project a {
  display: inline-block;
  margin-top: var(--spacing-sm);
  color: var(--accent-color);
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.project-card a:hover,
.project a:hover {
  color: var(--accent-hover);
  transform: translateX(5px);
}

/* ========================================
   DESIGN PORTFOLIO GALLERY
   ======================================== */

.design-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.design-gallery img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
  cursor: pointer;
}

.design-gallery img:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-xl);
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

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

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

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

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

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

.fade-in {
  animation: fadeIn 0.6s ease;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 768px) {
  :root {
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
  }
  
  .hero-section {
    min-height: 80vh;
    padding: var(--spacing-xl) var(--spacing-sm);
  }
  
  .hero-cta {
    flex-direction: column;
  }
  
  .hero-cta .btn-primary,
  .hero-cta .btn-secondary {
    width: 100%;
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .skills-grid {
    grid-template-columns: 1fr;
  }
  
  .projects-preview {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   SMOOTH SCROLLING
   ======================================== */

html {
  scroll-behavior: smooth;
}

/* ========================================
   PRINT STYLES
   ======================================== */

@media print {
  .hero-section,
  .cta-section {
    background: white !important;
    color: black !important;
  }
  
  .btn-primary,
  .btn-secondary {
    border: 1px solid black !important;
    background: white !important;
    color: black !important;
  }
}