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

/* ==========================================
   1. Design Tokens & Variables
   ========================================== */
:root {
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Outfit', sans-serif;

  /* HSL Palette */
  --bg-primary: #050811;
  --bg-secondary: #0b0f19;
  --bg-glass: rgba(11, 15, 25, 0.65);
  --bg-glass-hover: rgba(16, 24, 40, 0.85);

  --accent-emerald: #10b981;
  --accent-cyan: #06b6d4;
  --accent-cyan-rgb: 6, 182, 212;
  --accent-emerald-rgb: 16, 185, 129;

  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;

  --border-glass: rgba(255, 255, 255, 0.05);
  --border-glow-emerald: rgba(16, 185, 129, 0.25);
  --border-glow-cyan: rgba(6, 182, 212, 0.25);

  --glow-emerald: 0 0 25px rgba(16, 185, 129, 0.2);
  --glow-cyan: 0 0 25px rgba(6, 182, 212, 0.2);

  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s ease;
}

/* ==========================================
   2. Reset & Global Styles
   ========================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-emerald) var(--bg-primary);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  line-height: 1.6;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

/* High-tech Glowing Grid Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(rgba(16, 185, 129, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 185, 129, 0.02) 1px, transparent 1px);
  background-size: 50px 50px;
  z-index: -2;
  pointer-events: none;
}

body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 10% 20%, rgba(6, 182, 212, 0.05) 0%, transparent 40%),
              radial-gradient(circle at 80% 70%, rgba(16, 185, 129, 0.05) 0%, transparent 40%);
  z-index: -1;
  pointer-events: none;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: rgba(16, 185, 129, 0.3);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-emerald);
}

/* ==========================================
   3. Typography & Shared UI Utilities
   ========================================= */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

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

.gradient-text {
  background: linear-gradient(135deg, var(--accent-emerald) 0%, var(--accent-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glass-card {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  border-radius: 16px;
  transition: var(--transition-smooth);
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 8rem 0 4rem 0;
  position: relative;
}

.section-title {
  font-size: 2.75rem;
  margin-bottom: 1.5rem;
  text-align: center;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-emerald), var(--accent-cyan));
  margin: 0.75rem auto 0 auto;
  border-radius: 2px;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 4rem auto;
}

/* ==========================================
   4. Scroll Progress & Shrinking Header
   ========================================== */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-emerald), var(--accent-cyan));
  z-index: 1001;
  width: 0%; /* Fallback */
}

/* Shrinking Fixed Header on Scroll */
.header-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 90px;
  display: flex;
  align-items: center;
  z-index: 1000;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: var(--transition-smooth);
}

/* Scrolled Nav Class via JS or Scroll-Driven */
.header-nav.scrolled {
  height: 65px;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-glass);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

.header-nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-icon {
  width: 10px;
  height: 10px;
  background: var(--accent-emerald);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-emerald);
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-secondary);
  position: relative;
  padding: 0.5rem 0;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-emerald);
  transition: var(--transition-fast);
}

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ==========================================
   5. Hero Section
   ========================================== */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 90px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
}

.hero-subtitle {
  font-family: var(--font-heading);
  color: var(--accent-emerald);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.hero-title {
  font-size: 4.5rem;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero-typewriter {
  font-size: 1.85rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  height: 2.8rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.typewriter-cursor {
  display: inline-block;
  width: 3px;
  height: 1.8rem;
  background-color: var(--accent-cyan);
  animation: blink 0.8s infinite;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 580px;
}

.hero-btns {
  display: flex;
  gap: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1.85rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-emerald) 0%, var(--accent-cyan) 100%);
  color: var(--bg-primary);
  border: none;
  box-shadow: var(--glow-emerald);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(6, 182, 212, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-glow-cyan);
  transform: translateY(-2px);
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-mesh-container {
  position: relative;
  width: 100%;
  max-width: 420px;
  aspect-ratio: 1;
  border-radius: 24px;
  overflow: hidden;
  border: 1px solid var(--border-glass);
}

.hero-mesh-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.1) saturate(1.1);
  transition: var(--transition-smooth);
}

.hero-mesh-container:hover .hero-mesh-img {
  transform: scale(1.05);
}

/* Floating widgets on Hero */
.floating-badge {
  position: absolute;
  padding: 0.75rem 1.25rem;
  border-radius: 12px;
  background: rgba(11, 15, 25, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
  animation: float 4s ease-in-out infinite alternate;
}

.floating-badge-1 {
  top: 10%;
  left: -15%;
  animation-delay: 0s;
}

.floating-badge-2 {
  bottom: 15%;
  right: -10%;
  animation-delay: 1.5s;
}

.floating-badge i {
  font-size: 1.25rem;
  color: var(--accent-emerald);
}

.floating-badge .badge-text h4 {
  font-size: 0.9rem;
  font-weight: 600;
}

.floating-badge .badge-text p {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  pointer-events: none;
}

.mouse-icon {
  width: 22px;
  height: 36px;
  border: 2px solid var(--text-secondary);
  border-radius: 12px;
  position: relative;
}

.mouse-wheel {
  width: 4px;
  height: 8px;
  background-color: var(--accent-emerald);
  border-radius: 2px;
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  animation: scroll-wheel 1.5s infinite;
}

/* ==========================================
   6. About Me & Skills Section
   ========================================== */
.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 5rem;
  align-items: flex-start;
}

.about-left {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.about-card {
  padding: 2.5rem;
  position: relative;
  overflow: hidden;
}

.about-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.05) 0%, transparent 60%);
  pointer-events: none;
}

.about-bio {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  text-align: center;
}

.stat-item h3 {
  font-size: 2.25rem;
  color: var(--accent-cyan);
}

.stat-item p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.25rem;
}

.about-right {
  display: flex;
  flex-direction: column;
}

.skills-wrapper {
  margin-top: 1rem;
}

.skills-subtitle {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.skills-subtitle i {
  color: var(--accent-emerald);
}

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

/* Modern Radial/Circular Skill Dials */
.skill-dial-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 1.5rem;
}

.dial-svg-wrapper {
  position: relative;
  width: 100px;
  height: 100px;
  margin-bottom: 1rem;
}

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

.dial-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.04);
  stroke-width: 8px;
}

.dial-progress {
  fill: none;
  stroke: url(#cyan-green-grad);
  stroke-width: 8px;
  stroke-linecap: round;
  stroke-dasharray: 251.2;
  stroke-dashoffset: 251.2; /* Will be set dynamically by JS or transitions */
  transition: stroke-dashoffset 1.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.dial-percentage {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
}

.skill-dial-card h4 {
  font-size: 1.05rem;
  font-weight: 600;
}

/* Standard Progressive Skills (Linear Bars) */
.skills-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 2rem;
  grid-column: span 2;
}

.skill-bar-item {
  display: flex;
  flex-direction: column;
}

.skill-info {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.skill-label {
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.skill-val {
  font-size: 0.9rem;
  color: var(--accent-cyan);
}

.skill-track {
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 3px;
  overflow: hidden;
  position: relative;
}

.skill-progress-bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0%; /* Dynamically animated */
  background: linear-gradient(90deg, var(--accent-emerald), var(--accent-cyan));
  border-radius: 3px;
  transition: width 1.8s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================
   7. Services Section (What I Do)
   ========================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.service-card {
  padding: 2.5rem 2rem;
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.service-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.05) 0%, rgba(6, 182, 212, 0.05) 100%);
  opacity: 0;
  transition: var(--transition-smooth);
  pointer-events: none;
}

.service-card:hover::after {
  opacity: 1;
}

.service-icon {
  font-size: 2.25rem;
  margin-bottom: 1.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-glass);
  color: var(--accent-cyan);
  transition: var(--transition-smooth);
}

.service-card:hover .service-icon {
  background: rgba(16, 185, 129, 0.1);
  border-color: var(--border-glow-emerald);
  color: var(--accent-emerald);
  transform: scale(1.1);
}

.service-card h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  font-weight: 600;
}

.service-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ==========================================
   8. Portfolio Section (Drawings, Videos, Projects)
   ========================================== */
.portfolio-filters {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3.5rem;
}

.filter-btn {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-glass);
  color: var(--text-secondary);
  padding: 0.6rem 1.4rem;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--bg-glass-hover);
  color: var(--text-primary);
  border-color: var(--border-glow-emerald);
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.15);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.25rem;
}

.portfolio-card {
  position: relative;
  overflow: hidden;
  height: 380px;
  display: flex;
  flex-direction: column;
}

.portfolio-img-box {
  width: 100%;
  height: 220px;
  overflow: hidden;
  position: relative;
}

.portfolio-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.portfolio-card:hover .portfolio-img {
  transform: scale(1.08);
}

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(5, 8, 17, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition-smooth);
}

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

.portfolio-action-btn {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-emerald) 0%, var(--accent-cyan) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--bg-primary);
  font-size: 1.25rem;
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.4);
  transform: translateY(20px);
  transition: var(--transition-smooth);
}

.portfolio-card:hover .portfolio-action-btn {
  transform: translateY(0);
}

.portfolio-info {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.portfolio-info h4 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.portfolio-tags {
  display: flex;
  gap: 0.5rem;
  margin-top: auto;
}

.portfolio-tag {
  font-size: 0.75rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-glass);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  color: var(--text-secondary);
}

/* ==========================================
   9. Experience Timeline Section
   ========================================== */
.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 0;
}

/* Timeline Central Line */
.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: linear-gradient(to bottom, transparent, var(--accent-emerald) 10%, var(--accent-cyan) 90%, transparent);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  width: 50%;
  padding: 2rem 3rem;
  box-sizing: border-box;
}

.timeline-item:nth-child(odd) {
  left: 0;
  text-align: right;
}

.timeline-item:nth-child(even) {
  left: 50%;
  text-align: left;
}

/* Timeline Node Circles */
.timeline-item::after {
  content: '';
  position: absolute;
  top: 2.5rem;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 3px solid var(--accent-emerald);
  box-shadow: 0 0 10px var(--accent-emerald);
  z-index: 1;
  transition: var(--transition-smooth);
}

.timeline-item:nth-child(odd)::after {
  right: -8px;
}

.timeline-item:nth-child(even)::after {
  left: -8px;
}

.timeline-item:hover::after {
  background: var(--accent-cyan);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 15px var(--accent-cyan);
  transform: scale(1.25);
}

.timeline-card {
  padding: 2rem;
  position: relative;
}

.timeline-date {
  font-family: var(--font-heading);
  color: var(--accent-cyan);
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}

.timeline-card h4 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.timeline-card h5 {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 1rem;
}

.timeline-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ==========================================
   10. Contact Section
   ========================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 5rem;
  align-items: flex-start;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 2.25rem;
}

.contact-info-card {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem;
}

.contact-info-icon {
  width: 55px;
  height: 55px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-glass);
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  transition: var(--transition-smooth);
}

.contact-info-card:hover .contact-info-icon {
  background: rgba(6, 182, 212, 0.1);
  color: var(--accent-cyan);
  border-color: var(--border-glow-cyan);
  transform: rotate(10deg);
}

.contact-info-details h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.contact-info-details p,
.contact-info-details a {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.contact-info-details a:hover {
  color: var(--accent-emerald);
}

/* Modern Form Styles */
.contact-form {
  padding: 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.85rem;
}

.form-group {
  position: relative;
}

.form-input {
  width: 100%;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-glass);
  border-radius: 10px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition-fast);
}

textarea.form-input {
  resize: vertical;
  min-height: 150px;
}

.form-label {
  position: absolute;
  left: 1rem;
  top: 1rem;
  color: var(--text-muted);
  font-size: 0.95rem;
  pointer-events: none;
  transition: var(--transition-fast);
}

/* Floating Label Animation */
.form-input:focus ~ .form-label,
.form-input:not(:placeholder-shown) ~ .form-label {
  top: -0.65rem;
  left: 0.75rem;
  font-size: 0.75rem;
  color: var(--accent-emerald);
  background: var(--bg-secondary);
  padding: 0 0.5rem;
  border-radius: 4px;
}

.form-input:focus {
  border-color: var(--accent-emerald);
  box-shadow: 0 0 10px rgba(16, 185, 129, 0.15);
}

/* Modern form states with user-valid/user-invalid */
.form-input:user-valid {
  border-color: var(--accent-emerald);
}

.form-submit-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-message {
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  display: none;
}

.form-message.success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--accent-emerald);
  border: 1px solid rgba(16, 185, 129, 0.2);
  display: block;
}

/* ==========================================
   11. Footer Section
   ========================================== */
footer {
  border-top: 1px solid var(--border-glass);
  padding: 4rem 0;
  text-align: center;
  background: #04060d;
}

.footer-socials {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.social-circle {
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-glass);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  transition: var(--transition-smooth);
}

.social-circle:hover {
  background: var(--bg-glass-hover);
  color: var(--text-primary);
  border-color: var(--border-glow-cyan);
  box-shadow: 0 0 15px rgba(6, 182, 212, 0.2);
  transform: translateY(-3px);
}

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

/* ==========================================
   12. Responsive Design & Media Queries
   ========================================== */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 3.5rem;
  }
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .portfolio-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-grid,
  .contact-grid {
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  .header-nav {
    height: 70px;
  }
  .nav-links {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    height: calc(100vh - 70px);
    background: var(--bg-secondary);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3rem;
    transform: translateY(-100%);
    opacity: 0;
    transition: var(--transition-smooth);
    z-index: 999;
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
  }
  .nav-toggle {
    display: block;
  }
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
  }
  .hero-content {
    align-items: center;
  }
  .hero-typewriter {
    justify-content: center;
  }
  .hero-desc {
    margin: 0 auto 2.5rem auto;
  }
  .hero-visual {
    order: -1;
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: 4rem;
  }
  .about-stats {
    grid-template-columns: repeat(3, 1fr);
  }
  .skills-grid {
    grid-template-columns: 1fr;
  }
  .skills-list {
    grid-column: span 1;
  }
  .timeline::before {
    left: 2rem;
  }
  .timeline-item {
    width: 100%;
    padding-left: 4.5rem;
    padding-right: 0;
  }
  .timeline-item:nth-child(odd),
  .timeline-item:nth-child(even) {
    left: 0;
    text-align: left;
  }
  .timeline-item::after {
    left: calc(2rem - 8px) !important;
  }
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 4rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1.25rem;
  }
  .hero-title {
    font-size: 2.75rem;
  }
  .hero-typewriter {
    font-size: 1.4rem;
  }
  .hero-btns {
    flex-direction: column;
    width: 100%;
  }
  .btn {
    width: 100%;
    justify-content: center;
  }
  .services-grid,
  .portfolio-grid {
    grid-template-columns: 1fr;
  }
  .about-stats {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .contact-form {
    padding: 2rem 1.5rem;
  }
}

/* ==========================================
   13. Native Scroll-Driven Animations
   ========================================== */
@media (prefers-reduced-motion: no-preference) {
  @supports ((animation-timeline: scroll()) and (animation-range: 0% 100%)) {
    /* Top Progress Bar Animates on Scroll */
    #scroll-progress {
      width: 100%;
      animation: fill-progress linear both;
      animation-timeline: scroll(block root);
    }
    
    @keyframes fill-progress {
      from { width: 0%; }
      to { width: 100%; }
    }
  }

  @supports ((animation-timeline: view()) and (animation-range: entry)) {
    /* Entry transitions for elements as they enter viewport */
    @keyframes grow-fade-in {
      from {
        opacity: 0;
        transform: scale(0.85) translateY(40px);
      }
      to {
        opacity: 1;
        transform: scale(1) translateY(0);
      }
    }

    @keyframes fade-slide-left {
      from {
        opacity: 0;
        transform: translateX(-60px);
      }
      to {
        opacity: 1;
        transform: translateX(0);
      }
    }

    @keyframes fade-slide-right {
      from {
        opacity: 0;
        transform: translateX(60px);
      }
      to {
        opacity: 1;
        transform: translateX(0);
      }
    }

    /* Assign View Timeline animations */
    .timeline-item:nth-child(odd) {
      animation: fade-slide-left auto cubic-bezier(0.16, 1, 0.3, 1) both;
      animation-timeline: view();
      animation-range: entry 10% entry 80%;
    }

    .timeline-item:nth-child(even) {
      animation: fade-slide-right auto cubic-bezier(0.16, 1, 0.3, 1) both;
      animation-timeline: view();
      animation-range: entry 10% entry 80%;
    }

    .service-card,
    .portfolio-card,
    .about-card,
    .contact-info-card,
    .contact-form {
      animation: grow-fade-in auto cubic-bezier(0.16, 1, 0.3, 1) both;
      animation-timeline: view();
      animation-range: entry 5% entry 50%;
    }
  }
}

/* ==========================================
   14. Miscellaneous Animations
   ========================================== */
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

@keyframes scroll-wheel {
  0% { opacity: 1; transform: translate(-50%, 0); }
  100% { opacity: 0; transform: translate(-50%, 12px); }
}

@keyframes float {
  0% { transform: translateY(0); }
  100% { transform: translateY(-12px); }
}