/* ==========================================================================
   Space & Cosmic Portfolio Stylesheet
   Designed for Krishna Kumar K N
   ========================================================================== */

/* --- CSS Variables & Design System --- */
:root {
  --bg-space-dark: #030712;
  --bg-space-deep: #080c1d;
  --bg-card: rgba(13, 19, 43, 0.65);
  --bg-card-hover: rgba(22, 31, 68, 0.8);
  --bg-glass-nav: rgba(6, 11, 28, 0.75);

  --accent-cyan: #00f2fe;
  --accent-blue: #4facfe;
  --accent-purple: #9d4edd;
  --accent-magenta: #f72585;
  --accent-glow: rgba(0, 242, 254, 0.35);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-gradient: linear-gradient(135deg, #ffffff 0%, #a5f3fc 50%, #c084fc 100%);
  --cosmic-gradient: linear-gradient(135deg, #00f2fe 0%, #4facfe 50%, #9d4edd 100%);
  --purple-gradient: linear-gradient(135deg, #a855f7 0%, #ec4899 100%);

  --border-glass: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(0, 242, 254, 0.4);
  --border-purple-glow: rgba(168, 85, 247, 0.4);

  --shadow-subtle: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 25px rgba(0, 242, 254, 0.25);
  --shadow-purple-glow: 0 0 25px rgba(168, 85, 247, 0.25);

  --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  
  --transition-smooth: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- Base & Reset --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 85px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-space-dark);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* --- Fullscreen Space Canvas & Nebula Background --- */
#space-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -2;
  pointer-events: none;
  background: radial-gradient(circle at 15% 20%, #110c2e 0%, #030712 60%);
}

.cosmic-nebula-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  background: 
    radial-gradient(circle at 85% 15%, rgba(157, 78, 221, 0.15) 0%, transparent 45%),
    radial-gradient(circle at 10% 75%, rgba(0, 242, 254, 0.12) 0%, transparent 50%),
    radial-gradient(circle at 70% 85%, rgba(247, 37, 133, 0.1) 0%, transparent 40%);
  filter: blur(40px);
}

/* --- Typography Helpers --- */
h1, h2, h3, h4, .brand-logo {
  font-family: var(--font-heading);
  letter-spacing: -0.02em;
  font-weight: 700;
  word-break: break-word;
}

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

.cosmic-text {
  background: var(--cosmic-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* --- Layout Containers --- */
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 90px 0;
  position: relative;
}

/* --- Glassmorphic Cards --- */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  padding: 36px;
  box-shadow: var(--shadow-subtle);
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 242, 254, 0.4), rgba(168, 85, 247, 0.4), transparent);
}

.glass-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-glow);
  box-shadow: 0 0 30px rgba(0, 242, 254, 0.25), 0 10px 40px rgba(0, 0, 0, 0.6);
  transform: translateY(-5px);
}

/* Floating Cosmic Animation */
@keyframes cosmic-float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-12px) rotate(1deg); }
}

/* --- Navigation Header --- */
.header-nav {
  position: fixed;
  top: 16px;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 20px;
}

.nav-container {
  max-width: 1100px;
  margin: 0 auto;
  background: var(--bg-glass-nav);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: 50px;
  padding: 12px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.brand-logo {
  font-size: 1.3rem;
  color: var(--text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
  user-select: none;
}

.brand-logo .brand-icon {
  color: var(--accent-cyan);
  font-size: 1.25rem;
  filter: drop-shadow(0 0 8px var(--accent-cyan));
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition-smooth);
  position: relative;
  padding: 4px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--cosmic-gradient);
  border-radius: 2px;
  transition: width 0.3s ease;
}

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

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

.nav-switch-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px !important;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  font-size: 0.85rem !important;
  color: var(--text-secondary) !important;
  transition: var(--transition-smooth);
}

.nav-switch-btn:hover {
  background: rgba(0, 242, 254, 0.1) !important;
  border-color: var(--border-glow);
  color: var(--accent-cyan) !important;
  box-shadow: 0 0 12px rgba(0, 242, 254, 0.2);
}

.nav-switch-btn::after {
  display: none !important;
}

.nav-cta-btn {
  padding: 8px 18px !important;
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.15), rgba(79, 172, 254, 0.15));
  border: 1px solid var(--border-glow);
  border-radius: 24px;
  color: var(--accent-cyan) !important;
}

.nav-cta-btn:hover {
  background: var(--cosmic-gradient) !important;
  color: #030712 !important;
  font-weight: 600;
  box-shadow: 0 0 15px var(--accent-glow);
}

.nav-cta-btn::after {
  display: none !important;
}

/* Mobile Hamburger Toggle */
.menu-toggle {
  display: none;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  color: var(--accent-cyan);
  font-size: 1.25rem;
  cursor: pointer;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
}

.menu-toggle:hover {
  background: rgba(0, 242, 254, 0.15);
  border-color: var(--accent-cyan);
}

/* --- Hero Section --- */
.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 130px;
  padding-bottom: 60px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 50px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.25);
  border-radius: 30px;
  font-size: 0.85rem;
  color: var(--accent-cyan);
  margin-bottom: 20px;
  backdrop-filter: blur(8px);
}

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

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

.hero-title {
  font-size: clamp(2.3rem, 4.8vw, 3.8rem);
  line-height: 1.18;
  margin-bottom: 16px;
}

.hero-subtitle {
  font-size: clamp(1.15rem, 2.3vw, 1.65rem);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 22px;
  min-height: 2.2rem;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.typewriter-cursor {
  display: inline-block;
  color: var(--accent-cyan);
  font-weight: 300;
  animation: blink-cursor 0.9s infinite;
}

@keyframes blink-cursor {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.hero-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 580px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 32px;
}

.hero-socials {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.social-link {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  color: var(--text-secondary);
  font-size: 1.2rem;
  text-decoration: none;
  transition: var(--transition-smooth);
}

.social-link:hover {
  color: var(--accent-cyan);
  border-color: var(--border-glow);
  background: rgba(0, 242, 254, 0.1);
  transform: translateY(-3px);
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.3);
}

/* Avatar Cosmic Orbit Visual */
.hero-avatar-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.avatar-orbit-outer {
  position: relative;
  width: 310px;
  height: 310px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle, rgba(0, 242, 254, 0.1) 0%, transparent 70%);
  animation: cosmic-float 6s ease-in-out infinite;
}

.orbit-ring {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 1.5px dashed rgba(0, 242, 254, 0.35);
  animation: orbit-rotate 20s linear infinite;
}

.orbit-ring-reverse {
  position: absolute;
  width: 116%;
  height: 116%;
  border-radius: 50%;
  border: 1.5px solid rgba(168, 85, 247, 0.25);
  animation: orbit-rotate-reverse 26s linear infinite;
}

.orbit-planet-1 {
  position: absolute;
  top: -6px;
  left: 50%;
  width: 14px;
  height: 14px;
  background: var(--accent-cyan);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--accent-cyan);
  transform: translateX(-50%);
}

.orbit-planet-2 {
  position: absolute;
  bottom: 10px;
  right: 15%;
  width: 10px;
  height: 10px;
  background: var(--accent-magenta);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-magenta);
}

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

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

.hero-avatar {
  width: 240px;
  height: 240px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 0 35px rgba(0, 242, 254, 0.4), inset 0 0 20px rgba(0, 0, 0, 0.5);
  position: relative;
  z-index: 2;
  transition: var(--transition-smooth);
}

.hero-avatar:hover {
  transform: scale(1.03);
  box-shadow: 0 0 45px rgba(168, 85, 247, 0.6);
  border-color: var(--accent-cyan);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 26px;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 12px;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-smooth);
  border: none;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.btn-primary {
  background: var(--cosmic-gradient);
  color: #030712;
  box-shadow: 0 0 20px rgba(0, 242, 254, 0.35);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 30px rgba(0, 242, 254, 0.6);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--border-glow);
  color: var(--accent-cyan);
  transform: translateY(-3px);
  box-shadow: 0 0 20px rgba(0, 242, 254, 0.2);
}

/* --- Section Headers --- */
.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-cyan);
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(1.85rem, 3.5vw, 2.75rem);
  margin-bottom: 14px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* --- Experience & Education Timeline --- */
.timeline-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
}

.timeline-column-title {
  font-size: 1.35rem;
  color: var(--text-primary);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.timeline-column-title i {
  color: var(--accent-cyan);
}

.timeline-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: relative;
  border-left: 2px dashed rgba(0, 242, 254, 0.3);
  padding-left: 24px;
  margin-left: 10px;
}

.timeline-card {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border-glass);
  border-radius: 16px;
  padding: 24px;
  position: relative;
  transition: var(--transition-smooth);
}

.timeline-card::before {
  content: '';
  position: absolute;
  left: -32px;
  top: 24px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 10px var(--accent-cyan);
  border: 2px solid var(--bg-space-dark);
}

.timeline-card:hover {
  border-color: var(--border-glow);
  transform: translateX(4px);
  box-shadow: var(--shadow-glow);
}

.timeline-date {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent-cyan);
  background: rgba(0, 242, 254, 0.1);
  padding: 4px 12px;
  border-radius: 20px;
  display: inline-block;
  margin-bottom: 8px;
}

.timeline-role {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.timeline-org {
  font-size: 0.92rem;
  color: #c084fc;
  font-weight: 600;
  margin-bottom: 10px;
}

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

.timeline-desc ul {
  padding-left: 16px;
  margin-top: 6px;
}

.timeline-desc li {
  margin-bottom: 5px;
}

/* --- About & Stats Grid --- */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 36px;
  align-items: stretch;
}

.about-text p {
  margin-bottom: 18px;
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.about-text strong {
  color: var(--text-primary);
}

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

.stat-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-glass);
  border-radius: 16px;
  padding: 24px;
  text-align: center;
  transition: var(--transition-smooth);
}

.stat-card:hover {
  background: rgba(0, 242, 254, 0.05);
  border-color: var(--border-glow);
  transform: translateY(-3px);
}

.stat-icon {
  font-size: 1.75rem;
  color: var(--accent-cyan);
  margin-bottom: 12px;
}

.stat-number {
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --- Skills Matrix --- */
.skills-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.skill-category-card {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border-glass);
  border-radius: 18px;
  padding: 28px 24px;
  transition: var(--transition-smooth);
}

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

.category-title {
  font-size: 1.15rem;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.category-title i {
  color: var(--accent-cyan);
}

.skills-pill-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.skill-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  border-radius: 30px;
  padding: 8px 14px;
  font-size: 0.9rem;
  color: var(--text-primary);
  font-weight: 500;
  transition: var(--transition-smooth);
}

.skill-pill i {
  font-size: 1rem;
  color: var(--accent-cyan);
  transition: var(--transition-smooth);
}

.skill-pill:hover {
  background: rgba(0, 242, 254, 0.12);
  border-color: var(--border-glow);
  transform: translateY(-2px);
  box-shadow: 0 0 12px rgba(0, 242, 254, 0.2);
}

.skill-pill:hover i {
  transform: scale(1.15);
  color: #fff;
}

/* --- Projects Section --- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
  gap: 28px;
}

.project-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.project-card::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(0, 242, 254, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

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

.project-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  gap: 12px;
}

.project-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.15), rgba(157, 78, 221, 0.15));
  border: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--accent-cyan);
  flex-shrink: 0;
}

.project-type-badge {
  font-size: 0.75rem;
  padding: 4px 10px;
  background: rgba(168, 85, 247, 0.15);
  border: 1px solid rgba(168, 85, 247, 0.3);
  border-radius: 20px;
  color: #c084fc;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.project-title {
  font-size: 1.35rem;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.project-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 22px;
  line-height: 1.6;
}

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

.project-tag {
  font-size: 0.78rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  padding: 4px 10px;
  color: var(--accent-cyan);
}

.project-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: auto;
}

.project-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-glass);
  border-radius: 10px;
  transition: var(--transition-smooth);
}

.project-btn:hover {
  background: var(--cosmic-gradient);
  color: #030712;
  border-color: transparent;
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.4);
}

/* --- Contact Section --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 36px;
}

.contact-info-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-card {
  background: var(--bg-card);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border-glass);
  border-radius: 16px;
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-decoration: none;
  color: inherit;
  transition: var(--transition-smooth);
  gap: 12px;
}

.contact-card:hover {
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
  transform: translateX(4px);
  box-shadow: var(--shadow-glow);
}

.contact-card-left {
  display: flex;
  align-items: center;
  gap: 16px;
  min-width: 0;
  overflow: hidden;
}

.contact-card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(0, 242, 254, 0.1);
  border: 1px solid rgba(0, 242, 254, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--accent-cyan);
  flex-shrink: 0;
}

.contact-card-title {
  font-size: 0.78rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.contact-card-value {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
  word-break: break-all;
}

.copy-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  transition: var(--transition-smooth);
}

.copy-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--accent-cyan);
}

.copy-btn.copied {
  color: #10b981;
}

/* Contact Form */
.contact-form-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  padding: 32px;
}

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

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

.form-group label {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-control {
  width: 100%;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px; /* Prevents auto-zoom on iOS */
  outline: none;
  transition: var(--transition-smooth);
}

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

.form-control:focus {
  background: rgba(0, 242, 254, 0.04);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.2);
}

/* --- Footer --- */
.footer {
  padding: 36px 0;
  border-top: 1px solid var(--border-glass);
  background: rgba(3, 7, 18, 0.9);
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.footer p {
  margin: 6px 0;
}

.footer .heart-icon {
  color: var(--accent-magenta);
}

/* --- Scroll To Top Rocket Button --- */
#scrollToTop {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-glow);
  color: var(--accent-cyan);
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-glow);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition-smooth);
}

#scrollToTop.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

#scrollToTop:hover {
  background: var(--cosmic-gradient);
  color: #030712;
  transform: translateY(-4px) scale(1.08);
  box-shadow: 0 0 25px var(--accent-cyan);
}

/* --- Scroll Reveal Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Comprehensive Responsive Breakpoints (Tablet, Phablet, Mobile)
   ========================================================================== */

/* Tablet & Smaller Devices (<= 968px) */
@media (max-width: 968px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }

  .hero-avatar-wrapper {
    order: -1; /* Display avatar above intro on mobile */
  }

  .hero-subtitle {
    justify-content: center;
  }

  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-socials {
    justify-content: center;
  }

  .about-grid, .contact-grid, .timeline-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .avatar-orbit-outer {
    width: 250px;
    height: 250px;
  }

  .hero-avatar {
    width: 190px;
    height: 190px;
  }
}

/* Mobile Devices (<= 768px) */
@media (max-width: 768px) {
  section {
    padding: 65px 0;
  }

  .container {
    padding: 0 18px;
  }

  .header-nav {
    top: 12px;
    padding: 0 14px;
  }

  .nav-container {
    padding: 10px 18px;
    border-radius: 40px;
  }

  .brand-logo {
    font-size: 1.2rem;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 65px;
    left: 14px;
    right: 14px;
    background: rgba(6, 11, 28, 0.97);
    backdrop-filter: blur(28px);
    -webkit-backdrop-filter: blur(28px);
    border: 1px solid var(--border-glow);
    border-radius: 20px;
    flex-direction: column;
    padding: 24px 20px;
    gap: 16px;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: var(--transition-smooth);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8);
    text-align: center;
  }

  .nav-links.active {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    display: block;
    padding: 10px 0;
    font-size: 1.05rem;
  }

  .nav-cta-btn {
    margin-top: 8px;
    padding: 12px 20px !important;
  }

  .hero-section {
    padding-top: 110px;
    padding-bottom: 40px;
  }

  .hero-title {
    font-size: 2.3rem;
  }

  .hero-description {
    font-size: 0.98rem;
  }

  .glass-card, .contact-form-card {
    padding: 24px 20px;
    border-radius: 16px;
  }

  .project-card {
    padding: 24px 20px;
    border-radius: 16px;
  }

  .projects-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .skills-categories {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .stats-container {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }

  .stat-card {
    padding: 18px 12px;
  }

  .stat-number {
    font-size: 1.55rem;
  }

  .stat-label {
    font-size: 0.75rem;
  }
}

/* Small SmartPhones (<= 480px) */
@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 1.05rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .avatar-orbit-outer {
    width: 200px;
    height: 200px;
  }

  .hero-avatar {
    width: 150px;
    height: 150px;
  }

  .stats-container {
    grid-template-columns: 1fr;
  }

  .contact-card {
    padding: 16px;
  }

  .contact-card-icon {
    width: 38px;
    height: 38px;
    font-size: 1.05rem;
  }

  .project-btn {
    width: 100%;
    justify-content: center;
  }

  #scrollToTop {
    bottom: 18px;
    right: 18px;
    width: 42px;
    height: 42px;
    font-size: 1.05rem;
  }
}