/* 
   Hari Prasad's Portfolio Website - Core Design System & Styling
   Built with high-end premium Glassmorphism, animations, and dark/light themes.
*/

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Fira+Code:wght@400;500;600&display=swap');

:root {
  /* Dark Theme (Default) */
  --bg-color: #080B11;
  --bg-grid: rgba(99, 102, 241, 0.03);
  --card-bg: rgba(13, 17, 28, 0.65);
  --card-border: rgba(255, 255, 255, 0.08);
  --card-border-hover: rgba(99, 102, 241, 0.4);
  --text-main: #F1F5F9;
  --text-muted: #94A3B8;
  --text-light: #64748B;
  
  --primary: #6366f1; /* Indigo */
  --primary-glow: rgba(99, 102, 241, 0.5);
  --secondary: #a855f7; /* Purple */
  --secondary-glow: rgba(168, 85, 247, 0.4);
  --accent: #06b6d4; /* Cyan */
  --accent-glow: rgba(6, 182, 212, 0.4);
  
  --gradient-main: linear-gradient(135deg, var(--primary), var(--secondary));
  --gradient-tech: linear-gradient(135deg, var(--accent), var(--primary));
  --gradient-bg: radial-gradient(circle at 10% 20%, rgba(13, 18, 30, 1) 0%, rgba(8, 11, 17, 1) 90%);
  
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-glow: 0 0 20px var(--primary-glow);
  
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  
  --terminal-bg: rgba(9, 12, 20, 0.9);
  --terminal-header: rgba(18, 24, 38, 0.95);
  --terminal-text: #34d399; /* Green emerald */
  --terminal-prompt: #38bdf8; /* Light blue */
}

body.light-theme {
  /* Light Theme */
  --bg-color: #F8FAFC;
  --bg-grid: rgba(99, 102, 241, 0.04);
  --card-bg: rgba(255, 255, 255, 0.75);
  --card-border: rgba(99, 102, 241, 0.08);
  --card-border-hover: rgba(99, 102, 241, 0.25);
  --text-main: #0F172A;
  --text-muted: #475569;
  --text-light: #64748B;
  
  --primary: #4F46E5; /* Darker Indigo */
  --primary-glow: rgba(79, 70, 229, 0.2);
  --secondary: #9333EA; /* Darker Purple */
  --secondary-glow: rgba(147, 51, 234, 0.15);
  --accent: #0891B2; /* Darker Cyan */
  --accent-glow: rgba(8, 145, 178, 0.15);
  
  --gradient-main: linear-gradient(135deg, var(--primary), var(--secondary));
  --gradient-tech: linear-gradient(135deg, var(--accent), var(--primary));
  --gradient-bg: radial-gradient(circle at 10% 20%, #F1F5F9 0%, #F8FAFC 90%);
  
  --shadow-sm: 0 4px 6px -1px rgba(99, 102, 241, 0.05), 0 2px 4px -1px rgba(99, 102, 241, 0.03);
  --shadow-md: 0 10px 15px -3px rgba(99, 102, 241, 0.08), 0 4px 6px -2px rgba(99, 102, 241, 0.04);
  --shadow-lg: 0 20px 25px -5px rgba(99, 102, 241, 0.12), 0 10px 10px -5px rgba(99, 102, 241, 0.06);
  --shadow-glow: 0 4px 20px rgba(99, 102, 241, 0.15);
  
  --terminal-bg: rgba(241, 245, 249, 0.95);
  --terminal-header: rgba(226, 232, 240, 0.98);
  --terminal-text: #0F172A;
  --terminal-prompt: #4F46E5;
}

/* Base Resets */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  scroll-behavior: smooth;
}

body {
  font-family: 'Outfit', sans-serif;
  background-color: var(--bg-color);
  background-image: var(--gradient-bg);
  color: var(--text-main);
  overflow-x: hidden;
  line-height: 1.6;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Background Animated Blobs */
.bg-blobs {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -2;
  overflow: hidden;
  pointer-events: none;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.15;
  mix-blend-mode: screen;
  animation: float-blob 25s infinite alternate ease-in-out;
  transition: opacity var(--transition-normal);
}

body.light-theme .blob {
  opacity: 0.08;
  mix-blend-mode: multiply;
}

.blob-1 {
  top: -10%;
  left: -10%;
  width: 50vw;
  height: 50vw;
  background-color: var(--primary);
  animation-duration: 20s;
}

.blob-2 {
  bottom: -10%;
  right: -10%;
  width: 60vw;
  height: 60vw;
  background-color: var(--secondary);
  animation-duration: 28s;
  animation-delay: -5s;
}

.blob-3 {
  top: 40%;
  left: 50%;
  width: 35vw;
  height: 35vw;
  background-color: var(--accent);
  animation-duration: 22s;
  animation-delay: -10s;
}

/* Grid overlay background */
.bg-grid-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  background-image: linear-gradient(var(--bg-grid) 1px, transparent 1px),
                    linear-gradient(90deg, var(--bg-grid) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

/* Scroll Progress Bar */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 4px;
  background: var(--gradient-main);
  z-index: 1001;
  box-shadow: 0 0 10px var(--primary-glow);
}

/* Standard Glass Container Utilities */
.glass {
  background: var(--card-bg);
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  transition: border var(--transition-normal), box-shadow var(--transition-normal), transform var(--transition-normal);
}

.glass:hover {
  border-color: var(--card-border-hover);
  box-shadow: var(--shadow-lg), 0 0 15px rgba(99, 102, 241, 0.15);
}

/* Section Common Styles */
section {
  padding: 100px 24px;
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  font-family: 'Fira Code', monospace;
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 12px;
  padding: 6px 16px;
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: 50px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -1px;
  background: linear-gradient(135deg, var(--text-main) 30%, var(--text-muted));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 16px;
}

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

.section-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* Floating Navigation Header */
header {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 48px);
  max-width: 1200px;
  z-index: 1000;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 28px;
  border-radius: 50px;
}

.logo {
  font-size: 1.4rem;
  font-weight: 800;
  text-decoration: none;
  color: var(--text-main);
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

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

.logo-icon {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 10px var(--primary);
  display: inline-block;
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 32px;
}

.nav-links a {
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a:hover {
  color: var(--text-main);
}

.nav-links a.active {
  color: var(--primary);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-main);
  border-radius: 2px;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Theme Switcher Button */
.theme-toggle-btn {
  background: transparent;
  border: 1px solid var(--card-border);
  width: 42px;
  height: 42px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-main);
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.theme-toggle-btn:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--card-border-hover);
}

body.light-theme .theme-toggle-btn:hover {
  background: rgba(0, 0, 0, 0.03);
}

.theme-toggle-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  transition: transform 0.5s ease;
}

.theme-toggle-btn:hover svg {
  transform: rotate(45deg);
}

.sun-icon {
  display: none;
}

body.light-theme .moon-icon {
  display: none;
}

body.light-theme .sun-icon {
  display: block;
}

/* CTA button inside Nav */
.nav-cta {
  text-decoration: none;
  padding: 10px 20px;
  background: var(--gradient-main);
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 50px;
  box-shadow: var(--shadow-glow);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--primary-glow);
}

.nav-cta:active {
  transform: translateY(0);
}

/* Mobile Menu Button */
.mobile-menu-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-main);
  width: 32px;
  height: 32px;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 140px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
  width: 100%;
}

.hero-content {
  text-align: left;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 50px;
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.15);
  font-family: 'Fira Code', monospace;
  font-size: 0.85rem;
  color: var(--primary);
  margin-bottom: 24px;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse-glow 2s infinite alternate;
}

.hero-title {
  font-size: 4rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -2px;
  margin-bottom: 20px;
}

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

.hero-subtitle {
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.typing-cursor {
  font-family: 'Fira Code', monospace;
  color: var(--primary);
  font-weight: 300;
  animation: blink 1s step-end infinite;
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 40px;
  max-width: 580px;
}

.hero-ctas {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.btn {
  text-decoration: none;
  padding: 14px 28px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
}

.btn-primary {
  background: var(--gradient-main);
  color: #fff;
  border: none;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 25px var(--primary-glow);
}

.btn-secondary {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-main);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--card-border-hover);
  transform: translateY(-3px);
}

body.light-theme .btn-secondary:hover {
  background: rgba(0, 0, 0, 0.02);
}

/* Beautiful Animated Developer Portrait Mockup (using SVGs) */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.visual-orbit {
  position: absolute;
  border: 1px dashed var(--card-border-hover);
  border-radius: 50%;
  animation: rotate-orbit 30s linear infinite;
  pointer-events: none;
}

.orbit-1 {
  width: 440px;
  height: 440px;
}

.orbit-2 {
  width: 360px;
  height: 360px;
  animation-duration: 20s;
  animation-direction: reverse;
}

.visual-container {
  width: 300px;
  height: 300px;
  border-radius: 50%;
  position: relative;
  z-index: 2;
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 40px rgba(99, 102, 241, 0.25);
  border: 2px solid var(--primary);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(168, 85, 247, 0.1));
}

.visual-avatar {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.floating-card {
  position: absolute;
  padding: 12px 18px;
  border-radius: 12px;
  font-family: 'Fira Code', monospace;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-md);
  animation: floating-bounce 4s ease-in-out infinite;
}

.fc-1 {
  top: 10%;
  left: -20px;
  animation-delay: 0s;
}

.fc-2 {
  bottom: 15%;
  right: -20px;
  animation-delay: 2s;
}

.floating-card svg {
  width: 16px;
  height: 16px;
}

/* Interactive Command Terminal Simulator Component */
.terminal-wrapper {
  margin-top: -60px;
  padding-bottom: 60px;
}

.terminal-container {
  max-width: 900px;
  margin: 0 auto;
  background: var(--terminal-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 20px 50px rgba(0, 0, 0, 0.4);
  font-family: 'Fira Code', monospace;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.terminal-container:hover {
  box-shadow: var(--shadow-lg), 0 25px 60px rgba(99, 102, 241, 0.15);
}

.terminal-header {
  background: var(--terminal-header);
  padding: 12px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--card-border);
  user-select: none;
}

.terminal-buttons {
  display: flex;
  gap: 8px;
}

.t-btn {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
}

.t-close { background: #ef4444; }
.t-minimize { background: #fbbf24; }
.t-maximize { background: #10b981; }

.terminal-title {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.terminal-status {
  font-size: 0.75rem;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 6px;
}

.terminal-body {
  height: 380px;
  padding: 24px;
  overflow-y: auto;
  font-size: 0.9rem;
  color: var(--terminal-text);
  line-height: 1.5;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.terminal-body::-webkit-scrollbar {
  width: 8px;
}

.terminal-body::-webkit-scrollbar-track {
  background: transparent;
}

.terminal-body::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}

body.light-theme .terminal-body::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.1);
}

.terminal-line {
  word-break: break-word;
}

.terminal-output {
  margin-top: 4px;
  color: var(--text-main);
  white-space: pre-wrap;
}

.terminal-output-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 8px;
  margin-top: 6px;
  background: rgba(255, 255, 255, 0.02);
  padding: 12px;
  border-radius: 6px;
  border: 1px dashed var(--card-border);
}

body.light-theme .terminal-output-grid {
  background: rgba(0, 0, 0, 0.01);
}

.terminal-output-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
}

.terminal-input-line {
  display: flex;
  align-items: center;
  gap: 8px;
  position: relative;
}

.terminal-prompt-text {
  color: var(--terminal-prompt);
  font-weight: 600;
}

.terminal-input {
  background: transparent;
  border: none;
  outline: none;
  font-family: inherit;
  font-size: inherit;
  color: var(--text-main);
  flex: 1;
}

/* About & Academics */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 60px;
  align-items: flex-start;
}

.about-details {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.about-text {
  font-size: 1.1rem;
  color: var(--text-muted);
}

/* Stepper timeline */
.education-timeline {
  display: flex;
  flex-direction: column;
  gap: 32px;
  position: relative;
  padding-left: 28px;
}

.education-timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--card-border);
}

.timeline-item {
  position: relative;
}

.timeline-dot {
  position: absolute;
  left: -28px;
  top: 6px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--bg-color);
  border: 3px solid var(--primary);
  box-shadow: 0 0 10px var(--primary-glow);
  z-index: 2;
  transition: transform var(--transition-fast);
}

.timeline-item:hover .timeline-dot {
  transform: scale(1.3);
  background: var(--primary);
}

.timeline-content {
  padding: 20px;
  border-radius: var(--radius-sm);
}

.timeline-header-info {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 8px;
  flex-wrap: wrap;
  gap: 8px;
}

.timeline-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-main);
}

.timeline-institution {
  font-size: 0.95rem;
  color: var(--primary);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.timeline-date {
  font-family: 'Fira Code', monospace;
  font-size: 0.85rem;
  color: var(--text-light);
  background: rgba(255, 255, 255, 0.03);
  padding: 4px 10px;
  border-radius: 50px;
  border: 1px solid var(--card-border);
}

body.light-theme .timeline-date {
  background: rgba(0, 0, 0, 0.02);
}

.timeline-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* Interactive GPA Calculator Component */
.gpa-calculator {
  padding: 28px;
}

.gpa-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--card-border);
}

.gpa-header svg {
  width: 24px;
  height: 24px;
  color: var(--primary);
}

.gpa-title {
  font-size: 1.3rem;
  font-weight: 700;
}

.gpa-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 32px;
}

.gpa-inputs {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.gpa-row {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 16px;
  align-items: center;
}

.gpa-label {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
}

.gpa-select, .gpa-input {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--card-border);
  color: var(--text-main);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  outline: none;
  font-family: inherit;
  font-size: 0.9rem;
  transition: border-color var(--transition-fast);
}

body.light-theme .gpa-select, body.light-theme .gpa-input {
  background: rgba(255, 255, 255, 0.8);
}

.gpa-select:focus, .gpa-input:focus {
  border-color: var(--primary);
}

.gpa-result-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius-md);
  border: 1px solid var(--card-border);
  padding: 24px;
  text-align: center;
}

body.light-theme .gpa-result-card {
  background: rgba(0, 0, 0, 0.01);
}

.gpa-dial {
  position: relative;
  width: 140px;
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

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

.gpa-circle-bg {
  fill: none;
  stroke: var(--card-border);
  stroke-width: 8;
}

.gpa-circle-value {
  fill: none;
  stroke: url(#gpa-grad);
  stroke-width: 10;
  stroke-linecap: round;
  stroke-dasharray: 377;
  stroke-dashoffset: 377;
  transition: stroke-dashoffset 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.gpa-value-text {
  position: absolute;
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-main);
}

.gpa-class {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  margin-top: 8px;
}

/* Skills Section */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 30px;
}

.skills-category {
  padding: 30px;
}

.skills-category-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}

.skills-category-header svg {
  width: 24px;
  height: 24px;
  color: var(--primary);
}

.skills-category-title {
  font-size: 1.25rem;
  font-weight: 700;
}

.skills-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.skill-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.skill-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  font-weight: 500;
}

.skill-name {
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.skill-percent {
  font-family: 'Fira Code', monospace;
  color: var(--text-muted);
}

.skill-bar-container {
  height: 6px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 10px;
  overflow: hidden;
  position: relative;
}

body.light-theme .skill-bar-container {
  background: rgba(0, 0, 0, 0.05);
}

.skill-bar-fill {
  height: 100%;
  background: var(--gradient-main);
  border-radius: 10px;
  width: 0%;
  transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 8px var(--primary-glow);
}

.skills-category:hover .skill-bar-fill {
  box-shadow: 0 0 12px var(--primary-glow);
}

/* Projects Section */
.projects-filter-bar {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-muted);
  padding: 8px 20px;
  border-radius: 50px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 0.9rem;
}

.filter-btn:hover {
  border-color: var(--card-border-hover);
  color: var(--text-main);
}

.filter-btn.active {
  background: var(--gradient-main);
  color: #fff;
  border-color: transparent;
  box-shadow: var(--shadow-glow);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 30px;
}

.project-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
  transform-origin: center;
}

.project-card:hover {
  transform: translateY(-6px);
}

.project-visual {
  height: 200px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(168, 85, 247, 0.15));
  border-bottom: 1px solid var(--card-border);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.project-visual svg {
  width: 80px;
  height: 80px;
  color: var(--primary);
  opacity: 0.7;
  transition: transform var(--transition-slow), opacity var(--transition-fast);
}

.project-card:hover .project-visual svg {
  transform: scale(1.15) rotate(5deg);
  opacity: 0.95;
}

.project-card-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 4px 12px;
  border-radius: 50px;
  background: rgba(99, 102, 241, 0.15);
  border: 1px solid rgba(99, 102, 241, 0.3);
  font-family: 'Fira Code', monospace;
  font-size: 0.75rem;
  color: var(--text-main);
  backdrop-filter: blur(4px);
}

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

.project-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 10px;
}

.project-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  flex: 1;
}

.project-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.project-tag {
  font-family: 'Fira Code', monospace;
  font-size: 0.75rem;
  color: var(--primary);
  background: rgba(99, 102, 241, 0.05);
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid rgba(99, 102, 241, 0.1);
}

body.light-theme .project-tag {
  background: rgba(99, 102, 241, 0.03);
}

.project-links {
  display: flex;
  gap: 16px;
  align-items: center;
}

.project-link {
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color var(--transition-fast);
}

.project-link:hover {
  color: var(--primary);
}

.project-link svg {
  width: 16px;
  height: 16px;
}

/* Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.contact-cards-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-info-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
}

.contact-info-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  flex-shrink: 0;
}

.contact-info-icon-wrapper svg {
  width: 20px;
  height: 20px;
}

.contact-info-details {
  display: flex;
  flex-direction: column;
}

.contact-info-label {
  font-size: 0.85rem;
  color: var(--text-light);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.contact-info-val {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.contact-info-val:hover {
  color: var(--primary);
}

.contact-social-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-social-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
}

.social-links {
  display: flex;
  gap: 16px;
}

.social-btn {
  text-decoration: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.social-btn:hover {
  color: var(--text-main);
  transform: translateY(-3px);
}

.social-btn.gh:hover {
  border-color: #f0f6fc;
  color: #fff;
  background: #24292f;
}

body.light-theme .social-btn.gh:hover {
  background: #24292f;
  color: #fff;
}

.social-btn.li:hover {
  border-color: #0077b5;
  color: #fff;
  background: #0077b5;
}

.social-btn svg {
  width: 20px;
  height: 20px;
}

/* Contact Form with Floating Labels */
.contact-form-card {
  padding: 40px;
}

.form-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 24px;
}

.form-grid {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.form-group {
  position: relative;
  display: flex;
  flex-direction: column;
}

.form-input, .form-textarea {
  background: transparent;
  border: none;
  border-bottom: 2px solid var(--card-border);
  color: var(--text-main);
  padding: 10px 4px;
  outline: none;
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition-fast);
  width: 100%;
}

.form-textarea {
  resize: none;
  height: 120px;
}

.form-label {
  position: absolute;
  left: 4px;
  top: 10px;
  color: var(--text-light);
  font-size: 1rem;
  pointer-events: none;
  transition: all var(--transition-fast);
}

.form-input:focus ~ .form-label,
.form-input:not(:placeholder-shown) ~ .form-label,
.form-textarea:focus ~ .form-label,
.form-textarea:not(:placeholder-shown) ~ .form-label {
  top: -16px;
  font-size: 0.8rem;
  color: var(--primary);
  font-weight: 600;
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--primary);
}

/* Form simulated sending state animation */
.form-status-msg {
  display: none;
  font-size: 0.95rem;
  font-weight: 600;
  text-align: center;
  padding: 12px;
  border-radius: 8px;
  margin-top: 16px;
  animation: fade-in-up 0.3s ease;
}

.form-status-msg.sending {
  display: block;
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.2);
  color: var(--primary);
}

.form-status-msg.success {
  display: block;
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: #10b981;
}

/* Footer Section */
footer {
  border-top: 1px solid var(--card-border);
  padding: 40px 24px;
  margin-top: 100px;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-text {
  font-size: 0.9rem;
  color: var(--text-light);
}

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

.footer-credits a {
  color: var(--primary);
  text-decoration: none;
}

/* Keyframes Animations */
@keyframes float-blob {
  0% {
    transform: translate(0px, 0px) scale(1);
  }
  33% {
    transform: translate(30px, -50px) scale(1.1);
  }
  66% {
    transform: translate(-20px, 20px) scale(0.95);
  }
  100% {
    transform: translate(0px, 0px) scale(1);
  }
}

@keyframes rotate-orbit {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes pulse-glow {
  from {
    transform: scale(0.9);
    box-shadow: 0 0 4px var(--accent-glow);
    opacity: 0.7;
  }
  to {
    transform: scale(1.15);
    box-shadow: 0 0 12px var(--accent);
    opacity: 1;
  }
}

@keyframes blink {
  from, to { color: transparent }
  50% { color: var(--primary) }
}

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

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal-element {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-element.active {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }
  
  .hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-ctas {
    justify-content: center;
  }
  
  .about-grid, .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .gpa-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  header {
    top: 12px;
    width: calc(100% - 24px);
  }
  
  .nav-container {
    padding: 10px 20px;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
  
  .nav-links {
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    flex-direction: column;
    padding: 30px;
    gap: 20px;
    box-shadow: var(--shadow-lg);
    display: none;
    animation: fade-in-up 0.3s ease;
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .nav-links a.active::after {
    display: none;
  }
  
  .nav-right {
    gap: 10px;
  }
  
  .nav-cta {
    padding: 8px 16px;
    font-size: 0.85rem;
  }
  
  .hero-title {
    font-size: 2.8rem;
  }
  
  .hero-subtitle {
    font-size: 1.4rem;
  }
  
  section {
    padding: 60px 16px;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .terminal-body {
    height: 300px;
    padding: 16px;
  }
  
  .gpa-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.3rem;
  }
  
  .hero-ctas {
    flex-direction: column;
    width: 100%;
  }
  
  .btn {
    width: 100%;
  }
}