/* =====================================================
   Mohamed Moghazy Portfolio - Main CSS
   Modern Dark/Light Theme with Premium Design
   ===================================================== */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;700&display=swap');

/* =====================================================
   CSS VARIABLES - DESIGN TOKENS
   ===================================================== */
:root {
  /* Colors - Dark Mode (Default) */
  --bg-primary: #070b14;
  --bg-secondary: #0d1320;
  --bg-card: #111827;
  --bg-card-hover: #1a2235;
  --bg-glass: rgba(17, 24, 39, 0.7);
  
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --accent-primary: #6366f1;
  --accent-secondary: #8b5cf6;
  --accent-tertiary: #06b6d4;
  --accent-glow: rgba(99, 102, 241, 0.3);
  
  --gradient-main: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #06b6d4 100%);
  --gradient-card: linear-gradient(135deg, rgba(99,102,241,0.1) 0%, rgba(139,92,246,0.05) 100%);
  --gradient-hero: radial-gradient(ellipse at 60% 50%, rgba(99,102,241,0.15) 0%, transparent 70%),
                   radial-gradient(ellipse at 10% 80%, rgba(6,182,212,0.1) 0%, transparent 60%);
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-accent: rgba(99, 102, 241, 0.4);
  
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.5);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.6);
  --shadow-glow: 0 0 40px rgba(99,102,241,0.2);
  
  --navbar-height: 70px;
  --border-radius: 16px;
  --border-radius-sm: 8px;
  --border-radius-lg: 24px;
  
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Mode */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  --bg-glass: rgba(255, 255, 255, 0.85);
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  
  --border-color: rgba(0, 0, 0, 0.08);
  --border-accent: rgba(99, 102, 241, 0.3);
  
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.1);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.15);
  --shadow-glow: 0 0 40px rgba(99,102,241,0.15);
  
  --gradient-hero: radial-gradient(ellipse at 60% 50%, rgba(99,102,241,0.08) 0%, transparent 70%),
                   radial-gradient(ellipse at 10% 80%, rgba(6,182,212,0.06) 0%, transparent 60%);
}

/* =====================================================
   RESET & BASE
   ===================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--navbar-height);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
}

/* =====================================================
   TYPOGRAPHY
   ===================================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-primary);
  margin-bottom: 16px;
}

.section-tag i {
  font-size: 0.75rem;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
  line-height: 1.15;
}

.section-title span {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.7;
}

.section-header {
  margin-bottom: 64px;
}

.section-header.centered {
  text-align: center;
  align-items: center;
  display: flex;
  flex-direction: column;
}

/* =====================================================
   SECTION SPACING
   ===================================================== */
section {
  padding: 100px 0;
  position: relative;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* =====================================================
   NAVBAR
   ===================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--navbar-height);
  z-index: 1000;
  transition: var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-size: 1.3rem;
  font-weight: 800;
}

.navbar-logo .logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-main);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  color: white;
  font-weight: 700;
}

.navbar-logo .logo-text {
  color: var(--text-primary);
}

.navbar-logo .logo-text span {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-link {
  color: var(--text-secondary) !important;
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-primary) !important;
  background: rgba(99, 102, 241, 0.1);
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  font-size: 1rem;
}

.theme-toggle:hover {
  background: rgba(99, 102, 241, 0.1);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.navbar-cta {
  padding: 8px 20px;
  background: var(--gradient-main);
  color: white !important;
  text-decoration: none;
  border-radius: 10px;
  font-size: 0.9rem;
  font-weight: 600;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.navbar-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
  color: white !important;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  transition: var(--transition);
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--navbar-height);
  left: 0;
  right: 0;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  padding: 20px 24px;
  z-index: 999;
}

.mobile-nav.open {
  display: block;
}

.mobile-nav .nav-link {
  display: block;
  padding: 12px 16px;
  margin-bottom: 4px;
  font-size: 1rem;
}

/* =====================================================
   HERO SECTION
   ===================================================== */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 0;
  position: relative;
  overflow: hidden;
  background: var(--bg-primary);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(99,102,241,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,102,241,0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

.hero-orb-1 {
  width: 600px;
  height: 600px;
  background: rgba(99, 102, 241, 0.08);
  top: -100px;
  right: -100px;
}

.hero-orb-2 {
  width: 400px;
  height: 400px;
  background: rgba(6, 182, 212, 0.06);
  bottom: -50px;
  left: -50px;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding-top: var(--navbar-height);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  min-height: 100vh;
  padding: 60px 0;
}

.hero-text .hero-greeting {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-weight: 500;
}

.hero-text .hero-greeting .wave {
  font-size: 1.5rem;
  animation: wave 2s ease-in-out infinite;
  display: inline-block;
}

@keyframes wave {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(20deg); }
  75% { transform: rotate(-10deg); }
}

.hero-text h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 900;
  line-height: 1.05;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.hero-text h1 .name-gradient {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-titles {
  margin-bottom: 24px;
}

.hero-title-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-weight: 500;
}

.hero-title-item .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gradient-main);
  flex-shrink: 0;
}

.hero-title-item.featured {
  font-size: 1.3rem;
  color: var(--text-primary);
  font-weight: 600;
}

.hero-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 480px;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: var(--gradient-main);
  color: white;
  text-decoration: none;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5);
  color: white;
  text-decoration: none;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: transparent;
  color: var(--text-primary);
  text-decoration: none;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-card);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  transform: translateY(-2px);
  text-decoration: none;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: transparent;
  color: var(--accent-primary);
  text-decoration: none;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  border: 1px solid var(--accent-primary);
}

.btn-outline:hover {
  background: var(--accent-primary);
  color: white;
  transform: translateY(-2px);
  text-decoration: none;
}

.hero-social {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-social .social-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.hero-social .social-divider {
  width: 30px;
  height: 1px;
  background: var(--border-color);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition);
  font-size: 1rem;
}

.social-link:hover {
  transform: translateY(-4px);
  background: var(--gradient-main);
  color: white;
  border-color: transparent;
  box-shadow: 0 8px 20px rgba(99, 102, 241, 0.4);
}

/* Hero Image */
.hero-image-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero-image-container {
  position: relative;
  width: 420px;
  height: 500px;
}

.hero-image-glow {
  position: absolute;
  inset: -20px;
  background: var(--gradient-main);
  border-radius: 40px;
  filter: blur(40px);
  opacity: 0.2;
  animation: glowPulse 4s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% { opacity: 0.15; transform: scale(1); }
  50% { opacity: 0.3; transform: scale(1.05); }
}

.hero-image-frame {
  position: absolute;
  inset: 0;
  border-radius: 32px;
  border: 1px solid var(--border-accent);
  background: var(--gradient-card);
  overflow: hidden;
}

.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  border-radius: 32px;
  position: relative;
  z-index: 0;
}

.hero-image-badge {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-lg);
  z-index: 3;
}

.hero-image-badge .badge-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1rem;
}

.hero-image-badge .badge-text .count {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
}

.hero-image-badge .badge-text .label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.hero-image-badge2 {
  position: absolute;
  top: 30px;
  right: -25px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-lg);
  z-index: 3;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  animation: statusPulse 2s ease-in-out infinite;
}

@keyframes statusPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
}

.hero-floating-tech {
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
  box-shadow: var(--shadow-md);
  animation: float 3s ease-in-out infinite;
}

.hero-floating-tech.tech-1 { top: 80px; left: -40px; animation-delay: 0s; }
.hero-floating-tech.tech-2 { top: 200px; right: -35px; animation-delay: 1s; }
.hero-floating-tech.tech-3 { bottom: 80px; right: -20px; animation-delay: 2s; }

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.8rem;
  animation: bounce 2s ease-in-out infinite;
}

.scroll-mouse {
  width: 24px;
  height: 36px;
  border: 2px solid var(--text-muted);
  border-radius: 12px;
  position: relative;
}

.scroll-wheel {
  width: 4px;
  height: 8px;
  background: var(--accent-primary);
  border-radius: 2px;
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
  0% { top: 6px; opacity: 1; }
  100% { top: 20px; opacity: 0; }
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-8px); }
}

/* =====================================================
   ABOUT SECTION
   ===================================================== */
#about {
  background: var(--bg-secondary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-image-wrapper {
  position: relative;
}

.about-image-frame {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  position: relative;
  border: 1px solid var(--border-color);
}

.about-image-frame img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  object-position: center top;
  display: block;
}

.about-experience-badge {
  position: absolute;
  bottom: 30px;
  right: -20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 20px 24px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.about-experience-badge .years {
  font-size: 2.5rem;
  font-weight: 900;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.about-experience-badge .label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

.about-text .section-tag {
  margin-bottom: 12px;
}

.about-description {
  color: var(--text-secondary);
  line-height: 1.9;
  font-size: 1rem;
  margin-bottom: 32px;
}

.about-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 24px 20px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

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

.stat-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.stat-card .stat-number {
  font-size: 2.5rem;
  font-weight: 900;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-card .stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.about-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* =====================================================
   SKILLS SECTION
   ===================================================== */
#skills {
  background: var(--bg-primary);
}

.skills-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 48px;
  justify-content: center;
}

.filter-btn {
  padding: 8px 20px;
  border-radius: 100px;
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

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

.skills-category {
  margin-bottom: 60px;
}

.skills-category-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.skills-category-title .cat-icon {
  width: 36px;
  height: 36px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-primary);
  font-size: 0.9rem;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 24px 20px;
  text-align: center;
  transition: var(--transition);
  cursor: default;
  position: relative;
  overflow: hidden;
}

.skill-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-main);
  opacity: 0;
  transition: var(--transition);
}

.skill-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
}

.skill-card:hover::after {
  opacity: 0.04;
}

.skill-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
  display: block;
  transition: var(--transition);
}

.skill-card:hover .skill-icon {
  transform: scale(1.15);
}

.skill-name {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.skill-level-badge {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(99, 102, 241, 0.1);
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent-primary);
  margin-bottom: 12px;
}

.skill-progress {
  height: 4px;
  background: var(--border-color);
  border-radius: 2px;
  overflow: hidden;
}

.skill-progress-bar {
  height: 100%;
  background: var(--gradient-main);
  border-radius: 2px;
  width: 0%;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1) 0.2s;
}

.skill-progress-bar.animated {
  width: var(--progress);
}

/* =====================================================
   EXPERIENCE & EDUCATION (TIMELINE)
   ===================================================== */
#experience, #education {
  background: var(--bg-secondary);
}

.timeline {
  position: relative;
  padding-left: 50px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-primary), rgba(99, 102, 241, 0.1));
}

.timeline-item {
  position: relative;
  margin-bottom: 50px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -38px;
  top: 24px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--gradient-main);
  border: 3px solid var(--bg-secondary);
  box-shadow: 0 0 0 3px var(--accent-primary), var(--shadow-glow);
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.timeline-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--gradient-main);
  border-radius: 4px 0 0 4px;
}

.timeline-card:hover {
  border-color: var(--border-accent);
  transform: translateX(6px);
  box-shadow: var(--shadow-glow);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
  gap: 16px;
}

.timeline-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.timeline-company {
  font-size: 0.9rem;
  color: var(--accent-primary);
  font-weight: 600;
  margin-top: 4px;
}

.timeline-date {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
  background: rgba(99, 102, 241, 0.08);
  padding: 6px 12px;
  border-radius: 100px;
  border: 1px solid rgba(99, 102, 241, 0.15);
}

.timeline-current {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: #22c55e;
  font-weight: 600;
  background: rgba(34, 197, 94, 0.1);
  padding: 4px 10px;
  border-radius: 100px;
  border: 1px solid rgba(34, 197, 94, 0.2);
  margin-left: 8px;
}

.timeline-description {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
  white-space: pre-line;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tech-tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.15);
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-primary);
}

/* =====================================================
   CERTIFICATES SECTION
   ===================================================== */
#certificates {
  background: var(--bg-primary);
}

.certificates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.cert-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
}

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

.cert-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: var(--gradient-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
}

.cert-image-placeholder {
  width: 100%;
  height: 180px;
  background: var(--gradient-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  border-bottom: 1px solid var(--border-color);
}

.cert-featured-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--gradient-main);
  color: white;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
}

.cert-body {
  padding: 24px;
}

.cert-org {
  font-size: 0.8rem;
  color: var(--accent-primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.cert-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
  line-height: 1.3;
}

.cert-date {
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 16px;
}

.cert-description {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.cert-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
  gap: 12px;
}

.cert-id {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
}

.cert-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-primary);
  text-decoration: none;
  transition: var(--transition);
}

.cert-link-btn:hover {
  background: var(--accent-primary);
  color: white;
  text-decoration: none;
}

/* Certificate Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  width: 100%;
  max-width: 700px;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.95) translateY(20px);
  transition: var(--transition);
  position: relative;
}

.modal-overlay.active .modal-box {
  transform: scale(1) translateY(0);
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 36px;
  height: 36px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  z-index: 1;
}

.modal-close:hover {
  background: rgba(239, 68, 68, 0.1);
  border-color: rgba(239, 68, 68, 0.3);
  color: #ef4444;
}

.modal-image {
  width: 100%;
  max-height: 320px;
  object-fit: cover;
  border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

.modal-body {
  padding: 32px;
}

/* =====================================================
   PROJECTS SECTION
   ===================================================== */
#projects {
  background: var(--bg-secondary);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 28px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

.project-thumbnail {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
}

.project-thumbnail-placeholder {
  width: 100%;
  height: 220px;
  background: var(--gradient-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  border-bottom: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

.project-thumbnail-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(99,102,241,0.1), rgba(139,92,246,0.05));
}

.project-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.project-category {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.project-featured-star {
  color: #f59e0b;
  font-size: 1rem;
}

.project-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
  margin-top: 12px;
}

.project-description {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
  flex: 1;
}

.project-tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.project-actions {
  display: flex;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.project-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  flex: 1;
  justify-content: center;
}

.project-btn.github {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.project-btn.github:hover {
  background: var(--bg-card-hover);
  border-color: var(--text-primary);
  color: var(--text-primary);
  text-decoration: none;
}

.project-btn.demo {
  background: var(--gradient-main);
  color: white;
  border: none;
}

.project-btn.demo:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
  text-decoration: none;
  color: white;
}

.project-btn.details {
  background: transparent;
  border: 1px solid var(--border-accent);
  color: var(--accent-primary);
}

.project-btn.details:hover {
  background: rgba(99, 102, 241, 0.1);
  text-decoration: none;
}

/* Projects Load More */
.load-more-wrap {
  text-align: center;
  margin-top: 48px;
}

/* =====================================================
   SERVICES SECTION
   ===================================================== */
#services {
  background: var(--bg-primary);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

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

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

.service-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
}

.service-icon {
  width: 64px;
  height: 64px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--accent-primary);
  margin-bottom: 24px;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  background: var(--gradient-main);
  border-color: transparent;
  color: white;
  transform: scale(1.1);
}

.service-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.service-description {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.service-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.service-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.service-features li i {
  color: var(--accent-primary);
  font-size: 0.75rem;
  flex-shrink: 0;
}

/* =====================================================
   CONTENT CREATOR / SOCIAL SECTION
   ===================================================== */
#content {
  background: var(--bg-secondary);
}

.social-platforms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 60px;
}

.platform-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 28px 20px;
  text-align: center;
  text-decoration: none;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.platform-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
  text-decoration: none;
  border-color: var(--border-accent);
}

.platform-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: white;
  transition: var(--transition);
}

.platform-card:hover .platform-icon {
  transform: scale(1.1);
}

.platform-name {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.platform-username {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* =====================================================
   TESTIMONIALS SECTION
   ===================================================== */
#testimonials {
  background: var(--bg-primary);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.testimonial-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 32px;
  transition: var(--transition);
  position: relative;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 20px;
  right: 24px;
  font-size: 5rem;
  color: rgba(99, 102, 241, 0.1);
  font-family: Georgia, serif;
  line-height: 1;
}

.testimonial-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
}

.testimonial-stars {
  display: flex;
  gap: 3px;
  margin-bottom: 16px;
}

.testimonial-stars i {
  color: #f59e0b;
  font-size: 0.85rem;
}

.testimonial-content {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
}

.testimonial-avatar-placeholder {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  color: white;
  flex-shrink: 0;
}

.testimonial-name {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.testimonial-role {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* =====================================================
   CONTACT SECTION
   ===================================================== */
#contact {
  background: var(--bg-secondary);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 60px;
  align-items: start;
}

.contact-info-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.contact-info-desc {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 40px;
  font-size: 0.95rem;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 40px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.contact-item-icon {
  width: 48px;
  height: 48px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-primary);
  font-size: 1rem;
  flex-shrink: 0;
}

.contact-item-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 3px;
}

.contact-item-value {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.contact-item-value a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

.contact-item-value a:hover {
  color: var(--accent-primary);
}

/* Contact Form */
.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 40px;
}

.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  transition: var(--transition);
  outline: none;
  resize: vertical;
}

.form-control:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
  background: var(--bg-card);
}

.form-control::placeholder {
  color: var(--text-muted);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.submit-btn {
  width: 100%;
  padding: 16px;
  background: var(--gradient-main);
  color: white;
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: inherit;
}

.submit-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5);
}

.submit-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

/* =====================================================
   FOOTER
   ===================================================== */
footer {
  background: var(--bg-primary);
  border-top: 1px solid var(--border-color);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 48px;
}

.footer-brand .footer-logo {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer-brand .footer-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 24px;
  max-width: 320px;
}

.footer-socials {
  display: flex;
  gap: 10px;
}

.footer-heading {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-links a:hover {
  color: var(--accent-primary);
  transform: translateX(4px);
}

.footer-bottom {
  padding-top: 30px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-copyright {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-made {
  font-size: 0.82rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

.footer-made i { color: #ef4444; }

/* =====================================================
   TOAST NOTIFICATIONS
   ===================================================== */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 320px;
  max-width: 400px;
  box-shadow: var(--shadow-lg);
  animation: slideInRight 0.3s ease;
}

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

.toast.toast-success { border-left: 4px solid #22c55e; }
.toast.toast-error { border-left: 4px solid #ef4444; }
.toast.toast-info { border-left: 4px solid var(--accent-primary); }
.toast.toast-warning { border-left: 4px solid #f59e0b; }

.toast-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.toast-success .toast-icon { background: rgba(34,197,94,0.1); color: #22c55e; }
.toast-error .toast-icon { background: rgba(239,68,68,0.1); color: #ef4444; }
.toast-info .toast-icon { background: rgba(99,102,241,0.1); color: var(--accent-primary); }
.toast-warning .toast-icon { background: rgba(245,158,11,0.1); color: #f59e0b; }

.toast-message {
  flex: 1;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.toast-close {
  color: var(--text-muted);
  cursor: pointer;
  background: none;
  border: none;
  font-size: 1.1rem;
  padding: 0;
  transition: var(--transition);
}

.toast-close:hover { color: var(--text-primary); }

/* =====================================================
   UTILITY CLASSES
   ===================================================== */
.text-gradient {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.divider {
  width: 80px;
  height: 4px;
  background: var(--gradient-main);
  border-radius: 2px;
  margin: 16px 0 0;
}

.divider.centered {
  margin: 16px auto 0;
}

/* Background Dots Pattern */
.bg-dots {
  background-image: radial-gradient(circle, var(--text-muted) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.05;
}

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 992px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 60px;
    text-align: center;
    padding: 80px 0 60px;
  }
  
  .hero-image-wrapper {
    order: -1;
  }
  
  .hero-image-container {
    width: 320px;
    height: 380px;
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .hero-social {
    justify-content: center;
  }
  
  .hero-title-item {
    justify-content: center;
  }
  
  .hero-description {
    margin: 0 auto 40px;
  }
  
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .about-image-wrapper {
    max-width: 500px;
    margin: 0 auto;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
  
  .footer-brand {
    grid-column: 1 / -1;
  }
  
  .navbar-nav, .navbar-cta {
    display: none;
  }
  
  .hamburger {
    display: flex;
  }
}

@media (max-width: 768px) {
  section { padding: 70px 0; }
  
  .hero-image-container {
    width: 280px;
    height: 340px;
  }
  
  .hero-floating-tech {
    display: none;
  }
  
  .hero-image-badge2 {
    right: -10px;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
  
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  .certificates-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .about-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .hero-image-container {
    width: 250px;
    height: 300px;
  }
  
  .hero-image-badge {
    left: -10px;
    bottom: -15px;
  }
  
  .section-title {
    font-size: 1.8rem;
  }
  
  .about-stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .social-platforms-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .toast {
    min-width: auto;
    max-width: calc(100vw - 40px);
    right: 20px;
  }
}

/* =====================================================
   AOS CUSTOM ANIMATIONS
   ===================================================== */
[data-aos] {
  pointer-events: none;
}

[data-aos].aos-animate {
  pointer-events: auto;
}

/* Scroll to top button */
.scroll-top {
  position: fixed;
  bottom: 24px;
  left: 24px;
  width: 44px;
  height: 44px;
  background: var(--gradient-main);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  cursor: pointer;
  border: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
  z-index: 999;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.6);
}

/* Loading animation for page transition */
.page-loader {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.page-loader.loaded {
  opacity: 0;
  visibility: hidden;
}

.loader-logo {
  font-size: 2rem;
  font-weight: 900;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: loaderPulse 1s ease-in-out infinite;
}

@keyframes loaderPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.95); }
}