/* ==========================================================================
   Design System & Styling Variables
   ========================================================================== */

:root {
  /* Fonts */
  --font-heading: 'Outfit', 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Color Variables (Dark Mode Default) */
  --bg-primary: #0a0b10;
  --bg-secondary: #11121a;
  --bg-tertiary: #171924;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  
  --accent-gradient: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
  --accent-color: #00f2fe;
  --accent-rgb: 0, 242, 254;
  --accent-purple: #9d4edd;
  --accent-purple-gradient: linear-gradient(135deg, #9d4edd 0%, #7209b7 100%);
  
  --border-color: rgba(255, 255, 255, 0.07);
  --border-focus: rgba(0, 242, 254, 0.4);
  
  --glass-bg: rgba(17, 18, 26, 0.75);
  --glass-border: rgba(255, 255, 255, 0.06);
  
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px rgba(0, 242, 254, 0.15);

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --container-width: 1200px;
}

/* Light Mode Variations */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #64748b;
  
  --accent-gradient: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
  --accent-color: #0ea5e9;
  --accent-rgb: 14, 165, 233;
  --accent-purple: #7c3aed;
  --accent-purple-gradient: linear-gradient(135deg, #7c3aed 0%, #5b21b6 100%);
  
  --border-color: rgba(15, 23, 42, 0.08);
  --border-focus: rgba(14, 165, 233, 0.4);
  
  --glass-bg: rgba(255, 255, 255, 0.8);
  --glass-border: rgba(15, 23, 42, 0.06);
  
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.08);
  --shadow-glow: 0 0 20px rgba(14, 165, 233, 0.15);
}

/* ==========================================================================
   Resets & Universal Styles
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

button, input, textarea {
  font-family: inherit;
  outline: none;
}

/* Common Layout Containers */
.container {
  width: 90%;
  max-width: var(--container-width);
  margin: 0 auto;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  align-items: center;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.section-padding {
  padding: 100px 0;
}

/* ==========================================================================
   Aesthetic Elements (Ambient Glows & Custom Cursors)
   ========================================================================== */

.ambient-glow {
  position: absolute;
  border-radius: var(--radius-full);
  filter: blur(140px);
  pointer-events: none;
  z-index: -1;
  opacity: 0.15;
  transition: opacity var(--transition-slow);
}

.glow-1 {
  top: 10%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: var(--accent-color);
}

.glow-2 {
  top: 45%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: var(--accent-purple);
}

.glow-3 {
  bottom: 5%;
  left: 10%;
  width: 400px;
  height: 400px;
  background: var(--accent-color);
}

.custom-cursor-tracker {
  position: fixed;
  top: 0;
  left: 0;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(var(--accent-rgb), 0.04) 0%, rgba(var(--accent-rgb), 0) 70%);
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 9999;
  border-radius: var(--radius-full);
  mix-blend-mode: screen;
  transition: width 0.3s, height 0.3s;
}

/* ==========================================================================
   Typography & Accents
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
}

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

.badge {
  display: inline-block;
  padding: 6px 14px;
  background-color: rgba(var(--accent-rgb), 0.08);
  border: 1px solid rgba(var(--accent-rgb), 0.25);
  color: var(--accent-color);
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Section Headers */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-tagline {
  font-family: var(--font-heading);
  color: var(--accent-color);
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-size: 0.9rem;
}

.section-title {
  font-size: 2.25rem;
  margin-top: 10px;
  margin-bottom: 16px;
}

.section-divider {
  width: 60px;
  height: 4px;
  background: var(--accent-gradient);
  margin: 0 auto;
  border-radius: var(--radius-full);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-normal);
  font-size: 0.95rem;
  border: none;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #050508;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(var(--accent-rgb), 0.3);
}

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

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

/* ==========================================================================
   Header / Sticky Navigation
   ========================================================================== */

.main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 20px 0;
  border-bottom: 1px solid transparent;
  transition: all var(--transition-normal);
}

.main-header.scrolled {
  padding: 12px 0;
  background-color: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-color: var(--glass-border);
  box-shadow: var(--shadow-sm);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.logo-accent {
  color: var(--accent-color);
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 32px;
}

.nav-link {
  font-weight: 500;
  color: var(--text-secondary);
  font-size: 0.95rem;
  position: relative;
  padding: 6px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  transition: width var(--transition-normal);
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

.nav-link.active::after, .nav-link:hover::after {
  width: 100%;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Theme Toggle Button */
.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  transition: all var(--transition-normal);
}

.theme-toggle:hover {
  color: var(--accent-color);
  border-color: var(--accent-color);
  transform: rotate(15deg);
}

.theme-toggle .sun-icon {
  width: 20px;
  height: 20px;
  display: block;
}

.theme-toggle .moon-icon {
  width: 20px;
  height: 20px;
  display: none;
}

[data-theme="light"] .theme-toggle .sun-icon {
  display: none;
}

[data-theme="light"] .theme-toggle .moon-icon {
  display: block;
}

/* Mobile Hamburger Menu */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  transition: all var(--transition-normal);
}

.mobile-menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--text-primary);
  transition: all var(--transition-normal);
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.mobile-menu-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ==========================================================================
   Hero Section Styling
   ========================================================================== */

.hero-section {
  padding-top: 180px;
  padding-bottom: 100px;
  position: relative;
}

.hero-title {
  font-size: 3.5rem;
  margin-top: 10px;
  margin-bottom: 10px;
}

.hero-subtitle {
  font-size: 1.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.typing-text {
  color: var(--accent-color);
  font-weight: 700;
}

.cursor-blink {
  color: var(--accent-color);
  font-weight: 400;
  animation: blink 0.8s infinite;
}

.hero-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin-bottom: 36px;
}

.hero-cta-buttons {
  display: flex;
  gap: 16px;
}

/* Hero Graphics: Code Mockup */
.code-editor-mockup {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  max-width: 500px;
  margin-left: auto;
  transition: transform var(--transition-normal);
}

.code-editor-mockup:hover {
  transform: translateY(-5px);
  border-color: rgba(var(--accent-rgb), 0.3);
  box-shadow: var(--shadow-glow);
}

.editor-header {
  background-color: var(--bg-tertiary);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
}

.editor-header .dot {
  width: 11px;
  height: 11px;
  border-radius: var(--radius-full);
  margin-right: 6px;
}

.editor-header .dot.red { background-color: #ef4444; }
.editor-header .dot.yellow { background-color: #f59e0b; }
.editor-header .dot.green { background-color: #10b981; }

.editor-title {
  margin-left: 12px;
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
}

.editor-body {
  padding: 24px;
  font-family: 'Space Grotesk', monospace;
  font-size: 0.9rem;
  background-color: #0b0c10;
}

[data-theme="light"] .editor-body {
  background-color: #11121a; /* Keep dark background in code editor for aesthetics */
}

.editor-body pre {
  white-space: pre-wrap;
}

.token-key {
  color: #c792ea;
}

.token-string {
  color: #c3e88d;
}

/* ==========================================================================
   About Me & Journey Timeline
   ========================================================================== */

.about-content {
  margin-top: 50px;
  align-items: start;
}

.bio-para {
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-size: 1rem;
}

.timeline-container {
  margin-top: 40px;
}

.timeline-header, .skills-header {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin-bottom: 24px;
  position: relative;
  padding-left: 14px;
}

.timeline-header::before, .skills-header::before {
  content: '';
  position: absolute;
  left: 0;
  top: 5px;
  width: 4px;
  height: 18px;
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
}

.timeline {
  position: relative;
  border-left: 1px solid var(--border-color);
  padding-left: 24px;
  margin-left: 8px;
}

.timeline-item {
  position: relative;
  margin-bottom: 30px;
}

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

.timeline-item::before {
  content: '';
  position: absolute;
  left: -29.5px;
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  background-color: var(--bg-primary);
  border: 2px solid var(--accent-color);
  transition: all var(--transition-normal);
}

.timeline-item:hover::before {
  background-color: var(--accent-color);
  transform: scale(1.2);
}

.timeline-date {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-color);
  background-color: rgba(var(--accent-rgb), 0.08);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

.timeline-title {
  font-size: 1.05rem;
  margin-top: 8px;
  margin-bottom: 6px;
}

.timeline-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.timeline-subtitle {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: -2px;
  margin-bottom: 8px;
}

.timeline-bullets {
  margin-top: 10px;
  padding-left: 18px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.timeline-bullets li {
  margin-bottom: 6px;
}

.courses-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}

.course-badge {
  font-size: 0.75rem;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--accent-color);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-weight: 500;
}

/* Profile Image & Bio Layout */
.bio-header-wrapper {
  display: flex;
  gap: 30px;
  align-items: flex-start;
  margin-bottom: 24px;
}

.profile-img-wrapper {
  width: 170px;
  height: 220px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 2px solid var(--border-color);
  box-shadow: var(--shadow-sm), var(--shadow-glow);
  flex-shrink: 0;
  background-color: var(--bg-tertiary);
  transition: all var(--transition-normal);
}

.profile-img-wrapper:hover {
  border-color: var(--accent-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.profile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.profile-img-wrapper:hover .profile-img {
  transform: scale(1.03);
}

.bio-paragraphs {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.bio-paragraphs .bio-para {
  margin-bottom: 0;
}

@media (max-width: 576px) {
  .bio-header-wrapper {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

/* Extra Bio Tags */
.bio-extra-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 30px;
}

.bio-detail-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.bio-detail-title {
  font-size: 1rem;
  font-weight: 600;
  position: relative;
  padding-left: 12px;
  color: var(--text-primary);
  font-family: var(--font-heading);
}

.bio-detail-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  width: 4px;
  height: 12px;
  background: var(--accent-gradient);
  border-radius: var(--radius-full);
}

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

.detail-tag {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 6px 14px;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.detail-tag:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
  background-color: rgba(var(--accent-rgb), 0.04);
  transform: translateY(-1px);
}

/* Journey row spacing */
.journey-row {
  margin-top: 80px;
}

/* Skills Layout */
.skills-categories {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.skills-category-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), border-color var(--transition-normal);
}

.skills-category-card:hover {
  transform: translateX(5px);
  border-color: rgba(var(--accent-rgb), 0.25);
}

.category-title {
  font-size: 1.05rem;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
}

.category-icon {
  width: 20px;
  height: 20px;
  color: var(--accent-color);
}

.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-tag {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 6px 14px;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.skill-tag:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
  background-color: rgba(var(--accent-rgb), 0.04);
}

/* ==========================================================================
   Stats Grid Display
   ========================================================================== */

.stats-grid {
  margin-bottom: 60px;
}

.stat-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 30px 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.stat-card:hover {
  transform: translateY(-5px);
  border-color: rgba(var(--accent-rgb), 0.35);
  box-shadow: var(--shadow-glow);
}

.stat-number {
  font-size: 2.5rem;
  font-family: var(--font-heading);
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 6px;
  font-weight: 800;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ==========================================================================
   Projects Grid & Filtering
   ========================================================================== */

.filter-controls {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 50px;
}

.filter-btn {
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: 10px 22px;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all var(--transition-normal);
}

.filter-btn:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
}

.filter-btn.active {
  background: var(--accent-gradient);
  color: #050508;
  border-color: transparent;
  box-shadow: var(--shadow-glow);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  transition: opacity 0.3s;
}

.projects-grid.single-project {
  display: flex;
  justify-content: center;
}

.projects-grid.single-project .project-card {
  max-width: 460px;
  width: 100%;
}

.project-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: rgba(var(--accent-rgb), 0.35);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.project-image-wrapper {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  background-color: var(--bg-tertiary);
}

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

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

.project-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(10, 11, 16, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.project-card:hover .project-overlay {
  opacity: 1;
}

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

.project-link-btn {
  width: 48px;
  height: 48px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  transition: all var(--transition-normal);
}

.project-link-btn:hover {
  background: var(--accent-gradient);
  color: #050508;
  transform: scale(1.1);
  border-color: transparent;
}

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

.project-details {
  padding: 24px;
}

.project-tag {
  font-size: 0.8rem;
  color: var(--accent-color);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.project-title {
  font-size: 1.2rem;
  margin-top: 6px;
  margin-bottom: 12px;
}

.project-description {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
  min-height: 54px;
}

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

.project-tech-tags span {
  font-size: 0.75rem;
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

/* Dynamic filter transitions in JS */
.project-card.hide {
  display: none;
}

/* ==========================================================================
   Services Grid & Cards
   ========================================================================== */

.service-card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 40px 30px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.service-card:hover {
  transform: translateY(-5px);
  border-color: rgba(var(--accent-rgb), 0.35);
  box-shadow: var(--shadow-glow);
}

.service-icon-box {
  width: 60px;
  height: 60px;
  background-color: rgba(var(--accent-rgb), 0.06);
  border: 1px solid rgba(var(--accent-rgb), 0.2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-color);
  margin-bottom: 28px;
  transition: all var(--transition-normal);
}

.service-card:hover .service-icon-box {
  background: var(--accent-gradient);
  color: #050508;
  border-color: transparent;
  transform: scale(1.05);
}

.service-icon {
  width: 28px;
  height: 28px;
}

.service-title {
  font-size: 1.25rem;
  margin-bottom: 14px;
}

.service-description {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   Contact Section & Custom Form
   ========================================================================== */

.contact-grid {
  gap: 50px;
}

.contact-info-panel {
  padding-right: 20px;
}

.panel-title {
  font-size: 1.5rem;
  margin-bottom: 16px;
}

.panel-text {
  color: var(--text-secondary);
  margin-bottom: 36px;
  font-size: 1rem;
}

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

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

.info-icon {
  width: 48px;
  height: 48px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-color);
  flex-shrink: 0;
}

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

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

.info-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
  text-transform: uppercase;
}

.info-link {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.info-link:hover {
  color: var(--accent-color);
}

.info-text {
  font-size: 1rem;
  font-weight: 600;
}

.social-header {
  font-size: 1rem;
  margin-bottom: 16px;
}

.social-links {
  display: flex;
  gap: 12px;
}

.social-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  transition: all var(--transition-normal);
  min-width: 90px;
}

.social-btn:hover {
  color: var(--accent-color);
  border-color: var(--accent-color);
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
}

.social-btn svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-fast);
}

.social-btn:hover svg {
  transform: scale(1.1);
}

.social-btn-text {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* Contact Form UI */
.contact-form-panel {
  position: relative;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
}

.form-grid {
  gap: 24px;
}

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

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

.form-input {
  width: 100%;
  padding: 14px 18px;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  transition: all var(--transition-normal);
}

.form-input::placeholder {
  color: var(--text-secondary);
  opacity: 0.6;
}

.form-input:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px var(--border-focus);
}

.form-input.text-area {
  min-height: 140px;
  resize: vertical;
}

/* Error States */
.error-msg {
  display: none;
  font-size: 0.75rem;
  color: #ef4444;
  margin-top: 6px;
  position: absolute;
}

.form-input.invalid {
  border-color: #ef4444;
}

.form-input.invalid:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.25);
}

/* Form Submission Alert / Loading States */
.btn-submit {
  width: 100%;
  position: relative;
}

.btn-submit .loading-spinner {
  display: none;
  width: 20px;
  height: 20px;
  animation: rotate 1s linear infinite;
  color: #050508;
}

.btn-submit.loading .btn-text {
  visibility: hidden;
}

.btn-submit.loading .loading-spinner {
  display: block;
  position: absolute;
}

/* Success Card Overlay */
.form-success-card {
  position: absolute;
  inset: 0;
  background-color: var(--bg-secondary);
  border-radius: var(--radius-lg);
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px;
  text-align: center;
  z-index: 10;
}

.form-success-card.active {
  display: flex;
}

.success-icon-box {
  width: 70px;
  height: 70px;
  border-radius: var(--radius-full);
  background-color: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #10b981;
  margin-bottom: 24px;
}

.success-icon {
  width: 36px;
  height: 36px;
}

.success-title {
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.success-description {
  font-size: 0.95rem;
  color: var(--text-secondary);
  max-width: 320px;
  margin-bottom: 28px;
}

.btn-close-success {
  width: 100%;
}

/* ==========================================================================
   Footer Section
   ========================================================================== */

.footer {
  border-top: 1px solid var(--border-color);
  padding: 40px 0;
  background-color: var(--bg-secondary);
}

.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.copyright, .credits {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   Scroll To Top Floating Button
   ========================================================================== */

.scroll-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--accent-gradient);
  color: #050508;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-normal);
  z-index: 999;
}

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

.scroll-to-top:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow), 0 12px 20px rgba(var(--accent-rgb), 0.3);
}

.scroll-to-top svg {
  width: 18px;
  height: 18px;
}

/* ==========================================================================
   Scroll Reveal Animations
   ========================================================================== */

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

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

/* Custom directions */
.scroll-reveal.fade-left {
  transform: translateX(-40px);
}

.scroll-reveal.fade-right {
  transform: translateX(40px);
}

.scroll-reveal.fade-left.reveal-active,
.scroll-reveal.fade-right.reveal-active {
  transform: translateX(0);
}

/* Keyframe Animations */
@keyframes blink {
  50% { opacity: 0; }
}

@keyframes rotate {
  100% { transform: rotate(360deg); }
}

/* ==========================================================================
   Responsive Media Queries
   ========================================================================== */

@media (max-width: 992px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .hero-title {
    font-size: 3rem;
  }
}

@media (max-width: 768px) {
  .grid-2 {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

  .section-padding {
    padding: 70px 0;
  }

  .hero-section {
    padding-top: 140px;
    padding-bottom: 70px;
    text-align: center;
  }

  .hero-description {
    margin: 0 auto 36px auto;
  }

  .hero-cta-buttons {
    justify-content: center;
  }

  .code-editor-mockup {
    margin: 0 auto;
  }

  /* Navigation Drawer for Mobile */
  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 30px 0;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
  }

  .nav-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav-list {
    flex-direction: column;
    align-items: center;
    gap: 24px;
  }

  .mobile-menu-toggle {
    display: flex;
  }

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

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-container {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .grid-4 {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: 2.4rem;
  }

  .hero-subtitle {
    font-size: 1.4rem;
  }

  .hero-cta-buttons {
    flex-direction: column;
    gap: 12px;
  }

  .btn {
    width: 100%;
  }

  .contact-form-panel {
    padding: 24px;
  }

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