/* ============================================
   Modern Data Portfolio - Design System
   ============================================ */

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

/* ============================================
   CSS Custom Properties (Design Tokens)
   ============================================ */
:root {
  /* Colors - Default Light Theme */
  --color-bg-primary: #f8fafc;
  --color-bg-secondary: #ffffff;
  --color-bg-tertiary: #f1f5f9;

  /* Gradient Colors - New Varied Palette */
  --color-accent-primary: #10b981;
  /* Emerald */
  --color-accent-secondary: #3b82f6;
  /* Blue */
  --color-accent-tertiary: #f59e0b;
  /* Amber */
  --color-accent-pink: #d946ef;
  /* Fuchsia */

  /* Text Colors */
  --color-text-primary: #0f172a;
  --color-text-secondary: #475569;
  --color-text-muted: #64748b;

  /* Glassmorphism */
  --glass-bg: rgba(0, 0, 0, 0.05);
  --glass-border: rgba(0, 0, 0, 0.1);
  --glass-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-accent-primary) 0%, var(--color-accent-secondary) 100%);
  --gradient-secondary: linear-gradient(135deg, var(--color-accent-tertiary) 0%, var(--color-accent-primary) 100%);
  --gradient-accent: linear-gradient(135deg, var(--color-accent-pink) 0%, var(--color-accent-secondary) 100%);
  --gradient-background: radial-gradient(ellipse at top, rgba(16, 185, 129, 0.05) 0%, transparent 50%),
    radial-gradient(ellipse at bottom, rgba(59, 130, 246, 0.05) 0%, transparent 50%);

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --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: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 4rem;

  /* Animation */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;

  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-xl: 2rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --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);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.2);
}

/* Dark Theme Variables */
.dark-theme {
  --color-bg-primary: #0f172a;
  /* Slate 950 approach */
  --color-bg-secondary: #1e293b;
  /* Slate 800 approach */
  --color-bg-tertiary: #334155;
  --color-text-primary: #f8fafc;
  --color-text-secondary: #cbd5e1;
  --color-text-muted: #94a3b8;
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.1);
  --gradient-background: radial-gradient(ellipse at top, rgba(16, 185, 129, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at bottom, rgba(59, 130, 246, 0.1) 0%, transparent 50%);
  --shadow-glow: 0 0 20px rgba(16, 185, 129, 0.3);
}

/* ============================================
   Reset & Base Styles
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

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

/* Background gradient overlay */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-background);
  pointer-events: none;
  z-index: 0;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

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

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

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

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

h1 {
  font-size: var(--font-size-5xl);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 {
  font-size: var(--font-size-4xl);
  color: var(--color-text-primary);
}

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

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

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

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

/* ============================================
   Layout Components
   ============================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  position: relative;
  z-index: 1;
}

.section {
  padding: var(--spacing-xl) 0;
  position: relative;
}

/* ============================================
   Navigation
   ============================================ */
/* ============================================
   Dashboard Layout Structure
   ============================================ */
.dashboard-wrapper {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background: var(--color-bg-secondary);
  border-right: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100vh;
  z-index: 1000;
  transition: all var(--transition-base);
}

.sidebar-header {
  padding: var(--spacing-xl) var(--spacing-lg);
  border-bottom: 1px solid var(--glass-border);
}

.sidebar-header .logo {
  margin-bottom: 0.5rem;
}

.logo-subtitle {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.sidebar-nav {
  flex: 1;
  padding: var(--spacing-lg) 0;
}

.sidebar-nav .nav-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  list-style: none;
}

.sidebar-nav .nav-links a {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 0.8rem var(--spacing-lg);
  color: var(--color-text-secondary);
  font-weight: 500;
  border-left: 4px solid transparent;
  transition: all var(--transition-fast);
}

.sidebar-nav .nav-links a i {
  width: 20px;
  font-size: 1.1rem;
}

.sidebar-nav .nav-links a:hover,
.sidebar-nav .nav-links a.active {
  color: var(--color-text-primary);
  background: rgba(99, 102, 241, 0.1);
  border-left-color: var(--color-accent-primary);
}

.sidebar-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--glass-border);
}

.sidebar-footer .social-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
}

.sidebar-footer .social-links a {
  font-size: 1.2rem;
  color: var(--color-text-muted);
}

/* Dashboard Main */
.dashboard-main {
  flex: 1;
  margin-left: 260px;
  background: var(--color-bg-primary);
  min-height: 100vh;
  position: relative;
}

.dashboard-header {
  height: 70px;
  background: var(--color-bg-secondary);
  backdrop-filter: blur(10px);
  border-bottom: 2px solid var(--color-accent-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--spacing-2xl);
  position: sticky;
  top: 0;
  z-index: 900;
}

.header-search {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  background: var(--glass-bg);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  width: 300px;
}

.header-search input {
  background: none;
  border: none;
  color: var(--color-text-primary);
  outline: none;
  width: 100%;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.theme-toggle {
  cursor: pointer;
  color: var(--color-text-secondary);
  font-size: 1.2rem;
}

.user-profile {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.user-profile img {
  width: 35px;
  height: 35px;
  border-radius: 50%;
  border: 2px solid var(--color-accent-primary);
}

.user-profile span {
  font-size: var(--font-size-sm);
  font-weight: 500;
}

/* Mobile Adjustments */
@media (max-width: 992px) {
  .sidebar {
    width: 80px;
  }

  .sidebar-header .logo-subtitle,
  .sidebar-nav a span {
    display: none;
  }

  .dashboard-main {
    margin-left: 80px;
  }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    width: 260px;
  }

  .sidebar.active {
    transform: translateX(0);
  }

  .dashboard-main {
    margin-left: 0;
  }

  .header-search {
    display: none;
  }
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  animation: fadeInUp 1s ease-out;
}

/* ============================================
   Dashboard Components (KPIs & Tiles)
   ============================================ */
.container-fluid {
  padding: var(--spacing-md) var(--spacing-2xl);
}

.dashboard-banner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-lg);
  background: var(--gradient-primary);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  color: white;
}

.dashboard-banner h1 {
  background: none;
  -webkit-text-fill-color: initial;
  color: white;
  margin-bottom: 0.5rem;
  font-size: var(--font-size-3xl);
}

.status-badge {
  background: rgba(255, 255, 255, 0.2);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.status-badge i {
  color: #10b981;
  font-size: 0.7rem;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    opacity: 1;
  }

  50% {
    opacity: 0.5;
  }

  100% {
    opacity: 1;
  }
}

/* KPI Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.kpi-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  transition: all var(--transition-base);
}

.kpi-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-accent-primary);
  box-shadow: var(--shadow-lg);
}

.kpi-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: white;
}

.kpi-icon.color-1 {
  background: var(--color-accent-secondary);
}

.kpi-icon.color-2 {
  background: var(--color-accent-primary);
}

.kpi-icon.color-3 {
  background: var(--color-accent-tertiary);
}

.kpi-icon.color-4 {
  background: var(--color-accent-pink);
}

.kpi-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.kpi-value {
  font-size: var(--font-size-xl);
  margin: 0.2rem 0;
  color: var(--color-text-primary);
}

.kpi-trend {
  font-size: var(--font-size-xs);
  font-weight: 600;
}

.kpi-trend.positive {
  color: var(--color-accent-primary);
}

/* Desktop Tile */
.dashboard-tile {
  background: var(--color-bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-lg);
  overflow: hidden;
}

.tile-header {
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.tile-header h3 {
  margin: 0;
  font-size: var(--font-size-lg);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-accent-tertiary);
}

.tile-body {
  padding: var(--spacing-lg);
}

.intro-tile .hero-description {
  max-width: none;
  margin: 0 0 var(--spacing-lg) 0;
  text-align: left;
}

.intro-tile .btn-group {
  justify-content: flex-start;
}

/* ============================================
   Buttons
   ============================================ */
.btn-group {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 1rem 2rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--font-size-base);
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.5);
}

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

.btn-secondary:hover {
  background: var(--glass-bg);
  transform: translateY(-2px);
}

/* ============================================
   Section Headers
   ============================================ */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.section-tag {
  display: inline-block;
  padding: 0.5rem 1.5rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  color: var(--color-accent-tertiary);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--spacing-md);
}

/* Skills Dashboard */
.skills-dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.skill-progress-item {
  margin-bottom: var(--spacing-md);
}

.skill-info {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
}

.progress-bar {
  height: 8px;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress {
  height: 100%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width 1s ease-out;
}

@media (max-width: 576px) {
  .skills-dashboard-grid {
    grid-template-columns: 1fr;
  }
}

/* Graphical Skills Component */
.skills-visual-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-md);
}

/* Radar Chart (SVG based) */
.radar-container {
  width: 100%;
  max-width: 550px;
  position: relative;
}

.radar-chart {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 0 8px rgba(16, 185, 129, 0.2));
}

.radar-grid {
  stroke: var(--glass-border);
  stroke-width: 1;
  fill: none;
}

.radar-axis {
  stroke: var(--glass-border);
  stroke-width: 1;
}

.radar-area {
  fill: rgba(16, 185, 129, 0.2);
  stroke: var(--color-accent-primary);
  stroke-width: 2;
  transition: all var(--transition-slow);
}

.radar-labels text {
  font-size: 11px;
  fill: var(--color-text-secondary);
  font-weight: 600;
  text-transform: uppercase;
}

/* Radial Progress (Circular) */
.radial-skills-grid {
  display: flex;
  justify-content: space-around;
  width: 100%;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.radial-skill-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  width: 130px;
}

.radial-progress-wrapper {
  position: relative;
  width: 100px;
  height: 100px;
}

.radial-progress-svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.radial-bg {
  fill: none;
  stroke: var(--color-bg-tertiary);
  stroke-width: 8;
}

.radial-fill {
  fill: none;
  stroke: var(--gradient-primary);
  /* Fallback to accent if gradient fails in stroke */
  stroke: var(--color-accent-primary);
  stroke-width: 8;
  stroke-linecap: round;
  stroke-dasharray: 289;
  /* 2 * PI * 46 */
  stroke-dashoffset: 289;
  transition: stroke-dashoffset 1.5s ease-out;
}

.radial-value {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: var(--font-size-md);
  font-weight: 700;
  color: var(--color-text-primary);
}

.radial-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  text-align: center;
  font-weight: 600;
  text-transform: uppercase;
}

/* Multi-Bar Mini Visual */
.mini-bars-container {
  width: 100%;
}

.mini-bar-item {
  margin-bottom: var(--spacing-sm);
}

.mini-bar-label {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 4px;
  display: flex;
  justify-content: space-between;
}

.mini-bar-bg {
  height: 6px;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.mini-bar-fill {
  height: 100%;
  background: var(--gradient-secondary);
  border-radius: var(--radius-full);
  width: 0;
  transition: width 1s ease-out;
}

/* ============================================
   Projects Section
   ============================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.project-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

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

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.project-icon {
  width: 40px;
  height: 40px;
  font-size: 1.2rem;
  background: rgba(99, 102, 241, 0.1);
  color: var(--color-accent-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.project-tag {
  padding: 0.25rem 0.75rem;
  background: rgba(99, 102, 241, 0.2);
  border: 1px solid var(--color-accent-primary);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  color: var(--color-accent-tertiary);
  font-weight: 500;
}

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

.project-description {
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}

.project-stats {
  display: flex;
  gap: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--glass-border);
}

.project-stat {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.project-stat-icon {
  color: var(--color-accent-tertiary);
}

/* About Dashboard */
.about-dashboard-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.bio-tile .tile-body p {
  margin-bottom: 1.5rem;
  line-height: 1.8;
  font-size: 1.1rem;
}

.edu-timeline {
  list-style: none;
}

.edu-timeline li {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.edu-timeline li::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 30px;
  bottom: -20px;
  width: 2px;
  background: var(--glass-border);
}

.edu-timeline li:last-child::before {
  display: none;
}

.edu-date {
  min-width: 60px;
  height: 25px;
  padding: 0 0.5rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-tertiary);
}

.edu-info strong {
  display: block;
  color: var(--color-text-primary);
  margin-bottom: 0.2rem;
}

.edu-info p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Contact Dashboard */
.contact-dashboard-grid {
  display: flex;
  justify-content: center;
  margin-top: var(--spacing-xl);
}

.contact-tile {
  width: 100%;
  max-width: 800px;
}

.contact-methods {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xl);
  flex-wrap: wrap;
}

.contact-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  flex: 1;
  min-width: 280px;
  max-width: 350px;
  text-align: center;
}

.contact-link:hover {
  border-color: var(--color-accent-primary);
  background: rgba(99, 102, 241, 0.05);
}

.contact-link i {
  font-size: 2rem;
  color: var(--color-accent-primary);
}

.contact-link div strong {
  display: block;
  color: var(--color-text-primary);
}

.contact-link div p {
  font-size: var(--font-size-sm);
  margin: 0;
}

@media (max-width: 992px) {

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

  .contact-methods {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Footer
   ============================================ */
.footer {
  padding: var(--spacing-xl) 0;
  text-align: center;
  border-top: 1px solid var(--glass-border);
  background: var(--color-bg-secondary);
}

.footer p {
  color: var(--color-text-muted);
}

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

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

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }

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

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }

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

.fade-in-up {
  animation: fadeInUp 0.6s ease-out forwards;
  opacity: 0;
}

.fade-in {
  animation: fadeIn 0.6s ease-out forwards;
  opacity: 0;
}

/* Stagger animation delays */
.stagger-1 {
  animation-delay: 0.1s;
}

.stagger-2 {
  animation-delay: 0.2s;
}

.stagger-3 {
  animation-delay: 0.3s;
}

.stagger-4 {
  animation-delay: 0.4s;
}

.stagger-5 {
  animation-delay: 0.5s;
}

/* ============================================
   Modal System
   ============================================ */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(10px);
  z-index: 10000;
  overflow-y: auto;
  animation: fadeIn 0.3s ease-out;
}

.modal.active {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: var(--spacing-xl) var(--spacing-md);
}

.modal-content {
  position: relative;
  background: var(--color-bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  max-width: 900px;
  width: 100%;
  margin: auto;
  padding: var(--spacing-2xl);
  animation: slideInUp 0.4s ease-out;
  box-shadow: var(--shadow-xl);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid;
  border-image: var(--gradient-primary) 1;
}

.modal-title {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-sm);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.modal-subtitle {
  color: var(--color-text-secondary);
  font-size: var(--font-size-lg);
  margin: 0;
}

.modal-close {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
  color: var(--color-text-primary);
  font-size: var(--font-size-xl);
}

.modal-close:hover {
  background: var(--gradient-accent);
  transform: rotate(90deg);
  border-color: transparent;
}

.modal-body {
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.modal-body h3 {
  color: var(--color-accent-tertiary);
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.modal-body h4 {
  color: var(--color-text-primary);
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

.modal-body p {
  margin-bottom: var(--spacing-md);
}

.modal-body ul,
.modal-body ol {
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.modal-body li {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-secondary);
}

.modal-body strong {
  color: var(--color-text-primary);
  font-weight: 600;
}

.modal-section {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.modal-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.modal-metric {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  text-align: center;
  transition: all var(--transition-base);
}

.modal-metric:hover {
  transform: translateY(-3px);
  border-color: var(--color-accent-primary);
}

.modal-metric-icon {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--spacing-sm);
}

.modal-metric-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-accent-tertiary);
  margin-bottom: 0.25rem;
}

.modal-metric-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.modal-highlight {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
  border-left: 4px solid var(--color-accent-primary);
  padding: var(--spacing-md);
  margin: var(--spacing-lg) 0;
  border-radius: var(--radius-sm);
}

/* Modal Images */
.modal-body img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.modal-body img:hover {
  transform: scale(1.02);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }

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

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 968px) {
  :root {
    --font-size-5xl: 2.5rem;
    --font-size-4xl: 2rem;
  }

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

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

  .skills-grid {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 70px;
    right: -100%;
    background: rgba(10, 10, 15, 0.98);
    backdrop-filter: blur(20px);
    width: 100%;
    max-width: 300px;
    height: calc(100vh - 70px);
    flex-direction: column;
    padding: var(--spacing-lg);
    transition: right var(--transition-base);
    border-left: 1px solid var(--glass-border);
  }

  .nav-links.active {
    right: 0;
  }

  .hero-title {
    font-size: 2rem;
  }

  .btn-group {
    flex-direction: column;
  }

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

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-sm);
  }

  .section {
    padding: var(--spacing-xl) 0;
  }

  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}