/* ========================================
   MODERN SOPHISTICATED PORTFOLIO STYLES
   Dark theme default with light theme toggle
   ======================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ========================================
   CSS CUSTOM PROPERTIES (VARIABLES)
   ======================================== */

:root {
  /* Dark Theme (Default) */
  --primary-color: #00D4FF;
  --primary-hover: #00B8E6;
  --secondary-color: #7C3AED;
  --accent-color: #F97316;
  --background-color: #0A0A0F;
  --background-secondary: #131318;
  --surface-color: #1A1A23;
  --surface-hover: #242430;
  --text-color: #FFFFFF;
  --text-secondary: #B4B4C7;
  --text-muted: #8A8A9E;
  --border-color: #2D2D3A;
  --shadow-color: rgba(0, 0, 0, 0.5);
  --glass-bg: rgba(26, 26, 35, 0.8);
  --glass-border: rgba(255, 255, 255, 0.1);
  --gradient-primary: linear-gradient(135deg, #00D4FF 0%, #7C3AED 100%);
  --gradient-secondary: linear-gradient(135deg, #7C3AED 0%, #F97316 100%);
  --gradient-background: linear-gradient(135deg, #0A0A0F 0%, #131318 50%, #1A1A23 100%);
  
  /* Typography */
  --font-family-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-family-mono: 'JetBrains Mono', 'Fira Code', 'SF Mono', Monaco, 'Cascadia Code', monospace;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  --line-height-tight: 1.25;
  --line-height-base: 1.6;
  --line-height-relaxed: 1.75;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-base: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;
  
  /* Layout */
  --container-max-width: 1200px;
  --border-radius-sm: 0.375rem;
  --border-radius-base: 0.5rem;
  --border-radius-lg: 0.75rem;
  --border-radius-xl: 1rem;
  --border-radius-full: 9999px;
  
  /* Animations */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Light Theme */
[data-theme='light'] {
  --primary-color: #0066CC;
  --primary-hover: #0052A3;
  --secondary-color: #6366F1;
  --accent-color: #DC2626;
  --background-color: #FFFFFF;
  --background-secondary: #F8FAFC;
  --surface-color: #FFFFFF;
  --surface-hover: #F1F5F9;
  --text-color: #0F172A;
  --text-secondary: #475569;
  --text-muted: #64748B;
  --border-color: #E2E8F0;
  --shadow-color: rgba(0, 0, 0, 0.1);
  --glass-bg: rgba(255, 255, 255, 0.8);
  --glass-border: rgba(0, 0, 0, 0.1);
  --gradient-primary: linear-gradient(135deg, #0066CC 0%, #6366F1 100%);
  --gradient-secondary: linear-gradient(135deg, #6366F1 0%, #DC2626 100%);
  --gradient-background: linear-gradient(135deg, #FFFFFF 0%, #F8FAFC 50%, #F1F5F9 100%);
}

/* ========================================
   RESET & BASE STYLES
   ======================================== */

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

html {
  scroll-behavior: smooth;
  height: 100%;
}

body {
  font-family: var(--font-family-primary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  font-weight: 400;
  color: var(--text-color);
  background: var(--gradient-background);
  min-height: 100vh;
  transition: all var(--transition-base);
  overflow-x: hidden;
}

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

/* ========================================
   HEADER STYLES
   ======================================== */

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  transition: all var(--transition-base);
}

header.scrolled {
  background: var(--surface-color);
  box-shadow: 0 4px 20px var(--shadow-color);
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
  padding: 0 var(--spacing-xl);
}

/* Logo */
.logo {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--primary-color);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.logo:hover {
  transform: scale(1.05);
}

/* Navigation */
nav {
  display: flex;
  align-items: center;
}

nav ul {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
  align-items: center;
}

nav ul li a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--font-size-sm);
  padding: var(--spacing-sm) var(--spacing-base);
  border-radius: var(--border-radius-base);
  transition: all var(--transition-fast);
  position: relative;
}

nav ul li a:hover {
  color: var(--primary-color);
  background: var(--surface-hover);
  transform: translateY(-2px);
}

nav ul li a.active {
  color: var(--primary-color);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
}

/* Theme Switcher */
.theme-switcher {
  margin-left: var(--spacing-xl);
  display: flex;
  align-items: center;
}

.switch-label {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 32px;
  cursor: pointer;
}

.switch-checkbox {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.slider {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--border-color);
  border-radius: var(--border-radius-full);
  transition: all var(--transition-base);
  border: 2px solid var(--border-color);
}

.slider::before {
  content: "🌙";
  position: absolute;
  height: 24px;
  width: 24px;
  left: 2px;
  bottom: 2px;
  background: var(--primary-color);
  border-radius: 50%;
  transition: all var(--transition-base);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
}

.switch-checkbox:checked + .slider {
  background: var(--primary-color);
  border-color: var(--primary-color);
}

.switch-checkbox:checked + .slider::before {
  content: "☀️";
  transform: translateX(28px);
  background: var(--surface-color);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 24px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
}

.menu-toggle .bar {
  display: block;
  width: 100%;
  height: 3px;
  background: var(--text-color);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-base);
}

.menu-toggle.active .bar:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

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

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

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

#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: var(--spacing-4xl) 0;
  background: var(--gradient-background);
  overflow: hidden;
  
}

#hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%23ffffff" fill-opacity="0.02"><circle cx="7" cy="7" r="1"/></g></svg>');
  pointer-events: none;
}

.hero-content {
  text-align: center;
  position: relative;
  z-index: 2;
}

.hero-greeting {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-lg);
  color: var(--primary-color);
  margin-bottom: var(--spacing-base);
  opacity: 0;
  animation: slideInUp 0.8s ease forwards 0.2s;
}

#hero h1 {
  font-size: clamp(var(--font-size-4xl), 8vw, var(--font-size-6xl));
  font-weight: 700;
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-lg);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0;
  animation: slideInUp 0.8s ease forwards 0.4s;
}

.hero-subtitle {
  font-size: var(--font-size-2xl);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
  font-weight: 500;
  opacity: 0;
  animation: slideInUp 0.8s ease forwards 0.6s;
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto var(--spacing-2xl);
  line-height: var(--line-height-relaxed);
  opacity: 0;
  animation: slideInUp 0.8s ease forwards 0.8s;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: slideInUp 0.8s ease forwards 1s;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg) var(--spacing-2xl);
  border-radius: var(--border-radius-lg);
  text-decoration: none;
  font-weight: 600;
  font-size: var(--font-size-base);
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left var(--transition-slow);
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 212, 255, 0.4);
}

.btn-secondary {
  background: var(--surface-color);
  color: var(--text-color);
  border: 2px solid var(--border-color);
  box-shadow: 0 4px 20px var(--shadow-color);
}

.btn-secondary:hover {
  background: var(--surface-hover);
  border-color: var(--primary-color);
  transform: translateY(-2px);
}

/* Floating Animation */
.hero-floating {
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: var(--gradient-primary);
  opacity: 0.1;
  animation: float 6s ease-in-out infinite;
}

.hero-floating:nth-child(1) {
  top: 10%;
  left: 10%;
  animation-delay: -2s;
}

.hero-floating:nth-child(2) {
  top: 20%;
  right: 10%;
  width: 200px;
  height: 200px;
  animation-delay: -4s;
}

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

#about {
  padding: var(--spacing-4xl) 0;
  background: var(--background-secondary);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--spacing-4xl);
  align-items: center;
}

.about-image {
  position: relative;
}

.about-image::before {
  content: '';
  position: absolute;
  top: -20px;
  left: -20px;
  right: 20px;
  bottom: 20px;
  background: var(--gradient-primary);
  border-radius: var(--border-radius-xl);
  z-index: -1;
  opacity: 0.3;
}

.about-image img {
  width: 100%;
  max-width: 400px;
  border-radius: var(--border-radius-xl);
  box-shadow: 0 20px 40px var(--shadow-color);
  transition: transform var(--transition-base);
}

.about-image img:hover {
  transform: scale(1.02);
}

.about-text h2 {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: var(--spacing-xl);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-text p {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-lg);
}

.about-text p:last-child {
  margin-bottom: 0;
}

/* Skills */
.skills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-2xl);
}

.skill-tag {
  padding: var(--spacing-sm) var(--spacing-base);
  background: var(--surface-color);
  color: var(--primary-color);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.skill-tag:hover {
  background: var(--primary-color);
  color: var(--surface-color);
  transform: translateY(-2px);
}

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

#projects {
  padding: var(--spacing-4xl) 0;
  background: var(--background-color);
}

#projects h2 {
  text-align: center;
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: var(--spacing-3xl);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.project-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-2xl);
  list-style: none;
}

.project-card {
  opacity: 1;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  transition: all var(--transition-base);
  position: relative;
  box-shadow: 0 10px 30px var(--shadow-color);

}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.project-card:hover::before {
  transform: scaleX(1);
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px var(--shadow-color);
  border-color: var(--primary-color);
}

.project-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: transform var(--transition-base);
}

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

.project-info {
  padding: var(--spacing-xl);
}

.project-info h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin-bottom: var(--spacing-base);
  color: var(--text-color);
}

.project-info p {
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-lg);
}

.project-links {
  display: flex;
  justify-content: center; /* Center the single button */
  gap: var(--spacing-base);
  padding: 0 var(--spacing-xl) var(--spacing-xl);
}

.project-links a {
  text-align: center;
  padding: var(--spacing-base) var(--spacing-lg);
  border-radius: var(--border-radius-base);
  text-decoration: none;
  font-weight: 500;
  transition: all var(--transition-fast);
  font-size: var(--font-size-sm);
  background: var(--gradient-primary);
  color: white;
}

.project-links a:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 212, 255, 0.3);
}

/* ========================================
   CONTACT SECTION
   ======================================== */

#contact {
  padding: var(--spacing-4xl) 0;
  background: var(--background-secondary);
  position: relative;
}

#contact h2 {
  text-align: center;
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: var(--spacing-base);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.contact-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-3xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

#contactForm {
  max-width: 600px;
  margin: 0 auto;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: 0 20px 40px var(--shadow-color);
}

.form-group {
  margin-bottom: var(--spacing-xl);
}

#contact label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--text-color);
  font-size: var(--font-size-sm);
}

#contact input,
#contact textarea {
  width: 100%;
  padding: var(--spacing-lg);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-base);
  background: var(--surface-color);
  color: var(--text-color);
  font-family: inherit;
  font-size: var(--font-size-base);
  transition: all var(--transition-base);
  resize: none;
}

#contact input:focus,
#contact textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
  background: var(--surface-hover);
}

#contact textarea {
  min-height: 150px;
  resize: vertical;
}

#contact button[type="submit"] {
  width: 100%;
  padding: var(--spacing-lg);
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: var(--border-radius-base);
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
  position: relative;
  overflow: hidden;
}

#contact button[type="submit"]:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 212, 255, 0.4);
}

#contact button[type="submit"]:active {
  transform: translateY(0);
}

/* ========================================
   FOOTER
   ======================================== */

footer {
  background: var(--background-color);
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-2xl) 0;
  text-align: center;
}

footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-base);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  flex-wrap: wrap;
  gap: var(--spacing-base);
}

.footer-left {
  text-align: left;
}

.footer-right {
  text-align: right;
}


footer p {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

footer ul {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

footer ul li a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
  padding: var(--spacing-sm);
}

footer ul li a:hover {
  color: var(--primary-color);
  transform: translateY(-2px);
}

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

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

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

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


@media (max-width: 1024px) {
  .about-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
    text-align: center;
  }
  
  .project-container {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
}

@media (max-width: 768px) {
  header .container {
    padding: 0 var(--spacing-base);
  }
  
  nav ul {
    display: none;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .theme-switcher {
    margin-left: var(--spacing-base);
  }
  
  #hero {
    padding: var(--spacing-2xl) 0;
    min-height: 80vh;
  }
  
  #hero h1 {
    font-size: var(--font-size-4xl);
  }
  
  .hero-subtitle {
    font-size: var(--font-size-xl);
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 100%;
    max-width: 300px;
    justify-content: center;
  }
  
  #about,
  #projects,
  #contact {
    padding: var(--spacing-2xl) 0;
  }
  
  .project-container {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
  
  #contactForm {
    margin: 0 var(--spacing-base);
  }
  
  footer .container {
    flex-direction: column;
    text-align: center;
  }
}

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

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

@media (max-width: 768px) {
  header .container {
    padding: 0 var(--spacing-base);
  }
  
  /* Only hide the main navigation menu, not footer navigation */
  nav ul {
    display: none;
  }
  
  /* Center footer navigation on mobile */
  footer nav ul {
    display: flex !important;
    justify-content: center;
    width: 100%;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .theme-switcher {
    margin-left: var(--spacing-base);
  }
  
  #hero {
    padding: var(--spacing-2xl) 0;
    min-height: 80vh;
  }
  
  #hero h1 {
    font-size: var(--font-size-4xl);
  }
  
  .hero-subtitle {
    font-size: var(--font-size-xl);
  }
  
  .hero-cta {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 100%;
    max-width: 300px;
    justify-content: center;
  }
  
  #about,
  #projects,
  #contact {
    padding: var(--spacing-2xl) 0;
  }
  
  .project-container {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
  
  #contactForm {
    margin: 0 var(--spacing-base);
  }
  
  /* Update footer layout for mobile - everything centered */
  footer .container {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-content {
    flex-direction: column;
    gap: var(--spacing-xl);
    align-items: center;
  }
  
  .footer-left,
  .footer-right {
    text-align: center;
    width: 100%;
  }
  
  /* Ensure footer nav takes full width and centers content */
  footer nav {
    width: 100%;
  }
}

/* Additional mobile optimization for smaller screens */
@media (max-width: 480px) {
  footer ul {
    flex-direction: column;
    gap: var(--spacing-base);
    align-items: center;
  }
  
  footer ul li {
    width: 100%;
    max-width: 200px;
  }
  
  footer ul li a {
    justify-content: center;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: var(--spacing-base);
  }
  
  .footer-tagline {
    margin-top: var(--spacing-base);
  }
}

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

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

.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease;
  animation: fadeIn 0.8s ease forwards;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

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


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

.mb-0 {
  margin-bottom: 0;
}

.mt-auto {
  margin-top: auto;
}

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

.scroll-reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   LOADING STATES
   ======================================== */

.loading {
  position: relative;
  overflow: hidden;
}

.loading::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  animation: loading 1.5s infinite;
}

@keyframes loading {
  0% {
    left: -100%;
  }
  100% {
    left: 100%;
  }
}

/* ========================================
   CUSTOM SCROLLBAR
   ======================================== */

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--background-color);
}

::-webkit-scrollbar-thumb {
  background: var(--primary-color);
  border-radius: var(--border-radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-hover);
}

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--primary-color) var(--background-color);
}

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

@media print {
  *,
  *::before,
  *::after {
    background: transparent !important;
    color: black !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }
  
  body {
    font-size: 12pt;
    line-height: 1.5;
  }
  
  header,
  footer,
  .menu-toggle,
  .theme-switcher {
    display: none !important;
  }
  
  .container {
    max-width: none;
  }
}