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

:root {
  /* ── Base ── */
  --color-bg:          #F4F6FB;
  --color-bg-alt:      #EEF1F8;
  --color-bg-deep:     #E8EDF7;
  --color-surface:     rgba(255,255,255,0.72);
  --color-bg-muted:    #F1F5F9;
  
  /* ── Text ── */
  --color-text:        #0F172A;
  --color-text-muted:  #64748B;
  --color-text-faint:  #94A3B8;
  
  /* ── Brand Accents ── */
  --color-blue:        #2563EB;
  --color-blue-light:  #3B82F6;
  --color-blue-faint:  #EFF6FF;
  --color-violet:      #7C3AED;
  --color-violet-faint:#F5F3FF;
  --color-cyan:        #0891B2;
  --color-cyan-faint:  #ECFEFF;
  
  /* ── Semantic ── */
  --color-success:     #059669;
  --color-warning:     #D97706;
  --color-error:       #DC2626;
  
  /* ── Border & Shadow ── */
  --color-border:      #E2E8F0;
  --color-border-strong: #CBD5E1;
  
  /* ── Glass ── */
  --glass-bg:          var(--color-surface);
  --glass-bg-hover:    rgba(255, 255, 255, 0.80);
  --glass-border:      rgba(255, 255, 255, 0.75);
  --glass-shadow:      0 8px 32px rgba(37, 99, 235, 0.08), 0 2px 8px rgba(0,0,0,0.04);
  --glass-shadow-hover:0 16px 48px rgba(37, 99, 235, 0.14), 0 4px 16px rgba(0,0,0,0.06);
  --glass-blur:        blur(20px) saturate(180%);
  
  /* ── Gradients ── */
  --gradient-brand:    linear-gradient(135deg, #2563EB 0%, #7C3AED 100%);
  --gradient-soft:     linear-gradient(135deg, #EFF6FF 0%, #F5F3FF 100%);
  --gradient-mesh-1:   radial-gradient(ellipse at 20% 20%, rgba(37,99,235,0.10) 0%, transparent 60%);
  --gradient-mesh-2:   radial-gradient(ellipse at 80% 80%, rgba(124,58,237,0.08) 0%, transparent 60%);
  --gradient-mesh-3:   radial-gradient(ellipse at 60% 10%, rgba(8,145,178,0.06) 0%, transparent 50%);
  
  /* ── Motion ── */
  --ease-out:          cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring:       cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast:     0.15s;
  --duration-base:     0.25s;
  --duration-slow:     0.6s;
  
  /* ── Border Radius ── */
  --radius-sm:   8px;
  --radius-md:   12px;
  --radius-lg:   16px;
  --radius-xl:   24px;
  --radius-full: 9999px;
  
  /* ── Spacing scale ── */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 40px;
  --space-2xl: 64px;
  --space-3xl: 96px;

  /* Fonts */
  --font-display: 'Space Grotesk', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;
  --color-rose:         #F43F5E;
  --color-rose-faint:   #FFF1F2;
  --color-amber:        #F59E0B;
  --color-amber-faint:  #FFFBEB;
  --color-emerald:      #10B981;
  --color-emerald-faint:#ECFDF5;
  --gradient-sunset:    linear-gradient(135deg, #F43F5E 0%, #F59E0B 100%);
  --gradient-ocean:     linear-gradient(135deg, #0891B2 0%, #2563EB 100%);
  --gradient-forest:    linear-gradient(135deg, #10B981 0%, #0891B2 100%);
  --gradient-aurora:    linear-gradient(135deg, #7C3AED 0%, #2563EB 50%, #0891B2 100%);
  --glow-blue:          0 0 20px rgba(37,99,235,0.25), 0 0 60px rgba(37,99,235,0.10);
  --glow-violet:        0 0 20px rgba(124,58,237,0.25), 0 0 60px rgba(124,58,237,0.10);
  --glow-cyan:          0 0 20px rgba(8,145,178,0.25), 0 0 60px rgba(8,145,178,0.10);
}

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

html {
  scroll-behavior: smooth;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

body {
  overflow-x: hidden;
  background-color: var(--color-bg);
}

/* ── Typography Utility Classes ── */
.text-hero    { font: 700 clamp(44px, 7vw, 72px)/1.05 var(--font-display); letter-spacing: -0.03em; }
.text-h1      { font: 700 clamp(32px, 5vw, 52px)/1.1  var(--font-display); letter-spacing: -0.02em; }
.text-h2      { font: 600 clamp(24px, 3.5vw, 36px)/1.2 var(--font-display); letter-spacing: -0.01em; }
.text-h3      { font: 600 clamp(18px, 2.5vw, 24px)/1.3 var(--font-body); }
.text-body-lg { font: 400 18px/1.75 var(--font-body); }
.text-body    { font: 400 16px/1.70 var(--font-body); }
.text-sm      { font: 400 14px/1.6  var(--font-body); }
.text-xs      { font: 500 12px/1.5  var(--font-body); letter-spacing: 0.06em; text-transform: uppercase; }
.text-mono    { font: 400 14px/1.6  var(--font-mono); }

/* ── Layout Wrappers & Sections ── */
.section {
  padding: var(--space-3xl) var(--space-xl);
  position: relative;
  overflow: hidden;
  background: var(--color-bg);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.section-subtitle {
  color: var(--color-blue);
  font: 600 14px var(--font-body);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.section-title {
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.section-desc {
  color: var(--color-text-muted);
  font-size: 16px;
}

/* ── Glassmorphism ── */
.glass {
  background:         var(--glass-bg);
  backdrop-filter:    var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border:             1px solid var(--glass-border);
  border-radius:      var(--radius-lg);
  box-shadow:         var(--glass-shadow);
  transition:         all var(--duration-base) var(--ease-out);
  position:           relative;
  overflow:           hidden;
  background-image: linear-gradient(
    135deg,
    rgba(255,255,255,0.08) 0%,
    rgba(255,255,255,0.00) 100%
  );
}

/* Inner highlight rim — top and left edge only */
.glass::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(
    135deg,
    rgba(255,255,255,0.55) 0%,
    rgba(255,255,255,0.00) 40%,
    rgba(255,255,255,0.00) 60%,
    rgba(255,255,255,0.15) 100%
  );
  pointer-events: none;
  z-index: 0;
}

.glass::before {
  content:   '';
  position:  absolute;
  inset:     0;
  background: linear-gradient(
    135deg,
    rgba(255,255,255,0.40) 0%,
    rgba(255,255,255,0.00) 60%
  );
  border-radius: inherit;
  pointer-events: none;
  z-index: 0;
}

.glass > * {
  position: relative;
  z-index: 1;
}

/* Coloured glass variants — add these new classes */
.glass-blue {
  background: rgba(239,246,255,0.65);
  border-color: rgba(37,99,235,0.20);
}
.glass-blue:hover { border-color: rgba(37,99,235,0.45); box-shadow: var(--glow-blue); }

.glass-violet {
  background: rgba(245,243,255,0.65);
  border-color: rgba(124,58,237,0.20);
}
.glass-violet:hover { border-color: rgba(124,58,237,0.45); box-shadow: var(--glow-violet); }

.glass-cyan {
  background: rgba(236,254,255,0.65);
  border-color: rgba(8,145,178,0.20);
}
.glass-cyan:hover { border-color: rgba(8,145,178,0.45); box-shadow: var(--glow-cyan); }

.glass:hover {
  background:    var(--glass-bg-hover);
  box-shadow:    var(--glass-shadow-hover);
  transform:     translateY(-4px);
  border-color:  rgba(255,255,255,0.90);
}

.glass-gradient {
  background: linear-gradient(
    135deg,
    rgba(255,255,255,0.70) 0%,
    rgba(239,246,255,0.60) 50%,
    rgba(245,243,255,0.55) 100%
  );
}

/* ── Gradient Mesh Backgrounds ── */
.mesh-hero {
  background:
    var(--gradient-mesh-1),
    var(--gradient-mesh-2),
    var(--gradient-mesh-3),
    var(--color-bg);
}

.mesh-section {
  background:
    radial-gradient(ellipse at 10% 50%, rgba(37,99,235,0.06) 0%, transparent 55%),
    radial-gradient(ellipse at 90% 50%, rgba(124,58,237,0.05) 0%, transparent 55%),
    var(--color-bg-alt);
}

@keyframes meshDrift {
  0%   { transform: translate(0px,   0px)   scale(1.0); }
  33%  { transform: translate(20px, -15px)  scale(1.05); }
  66%  { transform: translate(-15px, 10px)  scale(0.98); }
  100% { transform: translate(0px,   0px)   scale(1.0); }
}

.mesh-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: meshDrift 12s ease-in-out infinite;
  pointer-events: none;
  z-index: 0;
}

.mesh-blob-1 {
  width: 600px; height: 600px;
  background: rgba(37, 99, 235, 0.10);
  top: -100px; left: -100px;
  animation-delay: 0s;
}

.mesh-blob-2 {
  width: 500px; height: 500px;
  background: rgba(124, 58, 237, 0.08);
  bottom: -80px; right: -80px;
  animation-delay: -4s;
}

.mesh-blob-3 {
  width: 350px; height: 350px;
  background: rgba(8, 145, 178, 0.07);
  top: 40%; left: 50%;
  animation-delay: -8s;
}

/* ── Scroll Reveal & entrance ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  animation: fadeUp var(--duration-slow) var(--ease-out) forwards;
  animation-play-state: paused;
}

.reveal.visible {
  animation-play-state: running;
}

.stagger {
  animation-delay: var(--delay, 0s);
}

/* Typewriter & animations */
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.cursor {
  display: inline-block;
  width: 2px;
  background: var(--color-blue);
  animation: blink 1s step-end infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50%     { transform: translateY(-10px); }
}

.float-1 { animation: float 4s ease-in-out infinite; }
.float-2 { animation: float 5s ease-in-out infinite; animation-delay: -1.5s; }
.float-3 { animation: float 3.5s ease-in-out infinite; animation-delay: -2.5s; }

@keyframes borderGlow {
  0%, 100% { box-shadow: 0 0 0px rgba(37,99,235,0); }
  50%     { box-shadow: 0 0 20px rgba(37,99,235,0.25); }
}

.glow-pulse {
  animation: borderGlow 3s ease-in-out infinite;
}

/* Fix animation conflict when elements have both .reveal and .glow-pulse */
.reveal.glow-pulse {
  animation: fadeUp var(--duration-slow) var(--ease-out) forwards;
  animation-play-state: paused;
}

.reveal.glow-pulse.visible {
  animation: fadeUp var(--duration-slow) var(--ease-out) forwards, borderGlow 3s ease-in-out infinite;
  animation-play-state: running, running;
}

/* ── Respect reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ── Navbar Styling ── */
.navbar {
  position:   fixed;
  top: 0; left: 0; right: 0;
  z-index:    1000;
  padding:    0 var(--space-xl);
  height:     64px;
  display:    flex;
  align-items: center;
  justify-content: space-between;
  transition: all 0.3s var(--ease-out);
  border-bottom: 1px solid transparent;
}

.navbar.top {
  background: transparent;
  border-bottom: 1px solid rgba(0,0,0,0.06);
}

.navbar.scrolled {
  background:      rgba(255,255,255,0.80);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom:   1px solid var(--color-border);
  box-shadow:      0 1px 20px rgba(0,0,0,0.06);
}

.nav-logo {
  font: 700 22px/1 var(--font-display);
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: var(--space-xl);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font: 500 14px/1 var(--font-body);
  color: var(--color-text-muted);
  text-decoration: none;
  position: relative;
  transition: color var(--duration-fast) var(--ease-out);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0; right: 0;
  height: 2px;
  background: var(--gradient-brand);
  border-radius: 2px;
  transform: scaleX(0);
  transition: transform var(--duration-base) var(--ease-out);
}

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

.nav-links a:hover::after, .nav-links a.active::after {
  transform: scaleX(1);
}

.nav-cta {
  padding:       8px 20px;
  background:    var(--gradient-brand);
  color:         white;
  font:          600 14px/1 var(--font-body);
  border-radius: var(--radius-full);
  text-decoration: none;
  transition:    all var(--duration-base) var(--ease-out);
  box-shadow:    0 2px 8px rgba(37,99,235,0.30);
  border: none;
  cursor: pointer;
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37,99,235,0.40);
}

.progress-bar {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  background: var(--gradient-brand);
  width: var(--scroll-progress, 0%);
  z-index: 1001;
  transition: width 0.1s linear;
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1001;
}

.nav-hamburger span {
  width: 100%;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: all var(--duration-base);
}

.nav-hamburger.open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
}

.nav-hamburger.open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ── Hero Section Styling ── */
.hero {
  min-height:    100vh;
  display:       grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items:   center;
  gap:           var(--space-3xl);
  padding:       120px var(--space-xl) var(--space-3xl);
  position:      relative;
  overflow:      hidden;
}

.hero-content {
  z-index: 2;
}

.hero-badge {
  display:       inline-flex;
  align-items:   center;
  gap:           8px;
  padding:       6px 14px;
  border:        1px solid rgba(37,99,235,0.25);
  border-radius: var(--radius-full);
  background:    var(--color-blue-faint);
  font:          500 13px/1 var(--font-body);
  color:         var(--color-blue);
  margin-bottom: var(--space-lg);
}

.hero-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: 50%;
  box-shadow: 0 0 8px #22c55e;
}

/* Gradient shimmer on H1 name — animated */
@keyframes shimmer {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.hero-name {
  background: linear-gradient(
    270deg,
    #2563EB, #7C3AED, #0891B2, #2563EB
  );
  background-size: 300% 300%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 6s ease infinite;
}

.hero-role-wrapper {
  min-height: 48px;
  display: flex;
  align-items: center;
  margin-bottom: var(--space-md);
}

.hero-role {
  color: var(--color-text-muted);
  font-weight: 500;
}

.hero-body {
  color: var(--color-text-muted);
  margin-bottom: var(--space-xl);
  max-width: 600px;
}

.hero-ctas {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.btn-primary {
  display:       inline-flex;
  align-items:   center;
  gap:           8px;
  padding:       12px 28px;
  background:    var(--gradient-brand);
  color:         white;
  font:          600 15px/1 var(--font-body);
  border-radius: var(--radius-md);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition:    all var(--duration-base) var(--ease-out);
  box-shadow:    0 4px 14px rgba(37,99,235,0.35);
  overflow: hidden;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37,99,235,0.45);
}

.btn-outline {
  display:       inline-flex;
  align-items:   center;
  gap:           8px;
  padding:       12px 28px;
  background:    transparent;
  color:         var(--color-text);
  font:          600 15px/1 var(--font-body);
  border-radius: var(--radius-md);
  text-decoration: none;
  border:        1.5px solid var(--color-border-strong);
  cursor:        pointer;
  transition:    all var(--duration-base) var(--ease-out);
}

.btn-outline:hover {
  border-color: var(--color-blue);
  color: var(--color-blue);
  background: var(--color-blue-faint);
  transform: translateY(-2px);
}

.hero-socials {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.social-icon {
  display:       inline-flex;
  align-items:   center;
  justify-content: center;
  width:         40px;
  height:        40px;
  border-radius: var(--radius-md);
  border:        1px solid var(--color-border);
  background:    var(--glass-bg);
  backdrop-filter: blur(8px);
  transition:    all var(--duration-base) var(--ease-out);
  text-decoration: none;
}

.social-icon:hover {
  background:    var(--color-blue-faint);
  border-color:  var(--color-blue);
  transform:     translateY(-3px);
  box-shadow:    0 6px 16px rgba(37,99,235,0.18);
}

.hero-stats {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.stat-card {
  padding:       16px 20px;
  text-align:    center;
  border-radius: var(--radius-md);
  flex:          1;
}

.stat-number {
  font: 700 28px/1 var(--font-display);
  color: var(--color-blue);
}

.stat-label  {
  font: 400 12px/1.4 var(--font-body);
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* Hero Right Column Visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 400px;
  z-index: 2;
}

.hero-avatar-wrapper {
  width: 280px;
  height: 280px;
  border-radius: 50%;
  border: 4px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  overflow: hidden;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.hero-avatar-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-float-card {
  position:      absolute;
  padding:       10px 16px;
  border-radius: var(--radius-md);
  font:          600 13px/1 var(--font-body);
  display:       flex;
  align-items:   center;
  gap:           8px;
  white-space:   nowrap;
  box-shadow:    0 10px 25px rgba(0, 0, 0, 0.05);
}

.float-card-win {
  top: 10%;
  right: -20px;
  background: linear-gradient(135deg,#fef3c7,#fde68a);
  color: #92400e;
  border: 1px solid #fcd34d;
}

.float-card-ar {
  bottom: 20%;
  left: -20px;
  background: linear-gradient(135deg,#f0f9ff,#bae6fd);
  color: #0369a1;
  border: 1px solid #7dd3fc;
}

.float-card-stack {
  bottom: 5%;
  right: 0;
  background: linear-gradient(135deg,#f5f3ff,#ddd6fe);
  color: #5b21b6;
  border: 1px solid #c084fc;
}

/* ── About Section Styling ── */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-2xl);
  align-items: center;
}

.about-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  color: var(--color-text-muted);
}

.about-stats-card {
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.about-stat-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-border);
}

.about-stat-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.about-stat-icon {
  font-size: 24px;
}

.about-stat-info {
  display: flex;
  flex-direction: column;
}

.about-stat-value {
  font: 700 18px var(--font-display);
  color: var(--color-text);
}

.about-stat-label {
  font: 400 13px var(--font-body);
  color: var(--color-text-muted);
}

/* ── Skills Section Styling ── */
.skills-filter {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-2xl);
}

.filter-tab {
  padding: 8px 18px;
  background: var(--glass-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font: 500 14px var(--font-body);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--duration-base) var(--ease-out);
}

.filter-tab:hover, .filter-tab.active {
  background: var(--color-blue);
  border-color: var(--color-blue);
  color: white;
  transform: translateY(-1px);
}

.skills-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
  max-width: 1000px;
  margin: 0 auto;
}

.skill-pill {
  display:       inline-flex;
  align-items:   center;
  gap:           8px;
  padding:       8px 14px;
  background:    var(--glass-bg);
  border:        1px solid var(--color-border);
  border-radius: var(--radius-full);
  backdrop-filter: blur(8px);
  transition:    all var(--duration-base) var(--ease-out);
  cursor:        default;
}

.skill-pill img {
  width: 22px;
  height: 22px;
  object-fit: contain;
}

.skill-pill span {
  font: 500 13px/1 var(--font-body);
  color: var(--color-text);
}

.skill-pill:hover {
  border-color:  var(--color-blue);
  background:    var(--color-blue-faint);
  transform:     translateY(-2px);
  box-shadow:    0 4px 12px rgba(37,99,235,0.15);
}

.skill-category-label {
  font: 600 11px/1 var(--font-body);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 10px;
  display: inline-block;
}

.label-blue   { color: var(--color-blue);   background: var(--color-blue-faint); }
.label-violet { color: var(--color-violet); background: var(--color-violet-faint); }
.label-cyan   { color: var(--color-cyan);   background: var(--color-cyan-faint); }
.label-green  { color: #059669;              background: #f0fdf4; }
.label-orange { color: #d97706;              background: #fffbeb; }

/* ── Timeline (Experience & Education) ── */
.timeline {
  position: relative;
  padding-left: 32px;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content:   '';
  position:  absolute;
  left:      12px; top: 0; bottom: 0;
  width:     2px;
  background: linear-gradient(to bottom, var(--color-blue), var(--color-violet), transparent);
}

.timeline-item {
  position:     relative;
  padding:      var(--space-lg) var(--space-lg) var(--space-lg) var(--space-xl);
  margin-bottom: var(--space-lg);
  border-radius: var(--radius-lg);
}

.timeline-item::before {
  content:   '';
  position:  absolute;
  left:      -26px; top: 24px;
  width:     14px; height: 14px;
  background: var(--gradient-brand);
  border-radius: 50%;
  border:    3px solid white;
  box-shadow: 0 0 0 3px rgba(37,99,235,0.20);
}

.timeline-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.timeline-role-info {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.timeline-logo {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.timeline-role {
  font: 600 18px/1.2 var(--font-display);
  color: var(--color-text);
}

.timeline-company {
  font: 500 15px/1   var(--font-body);
  color: var(--color-blue);
  margin-top: 4px;
}

.timeline-date {
  font:          500 13px/1 var(--font-body);
  color:         var(--color-text-muted);
  background:    var(--color-bg-muted);
  padding:       4px 10px;
  border-radius: var(--radius-full);
  white-space:   nowrap;
}

.timeline-desc {
  font: 400 15px/1.7 var(--font-body);
  color: var(--color-text-muted);
  margin-top: var(--space-md);
}

/* ── Projects Section Styling ── */
.projects-grid {
  display:               grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap:                   var(--space-xl);
}

.project-card {
  display:        flex;
  flex-direction: column;
  border-radius:  var(--radius-xl);
  overflow:       hidden;
  transition:     all var(--duration-base) var(--ease-out);
}

.project-card::after {
  content:   '';
  position:  absolute;
  top: 0; left: 0; right: 0;
  height:    3px;
  background: var(--gradient-brand);
  opacity:   0;
  transition: opacity var(--duration-base);
}

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

.project-card-body {
  padding: var(--space-xl);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-featured-badge {
  position:  absolute;
  top:       14px; right: 14px;
  padding:   4px 10px;
  font:      700 11px/1 var(--font-body);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color:     #92400e;
  background: linear-gradient(135deg, #fef3c7, #fde68a);
  border-radius: var(--radius-full);
  border:    1px solid #fcd34d;
  display: flex;
  align-items: center;
  gap: 4px;
}

.project-title {
  font: 600 22px var(--font-display);
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.project-desc {
  color: var(--color-text-muted);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-lg);
}

.tech-tag {
  display:       inline-flex;
  align-items:   center;
  gap:           5px;
  padding:       4px 10px;
  background:    var(--color-blue-faint);
  color:         var(--color-blue);
  font:          500 12px/1 var(--font-mono);
  border-radius: var(--radius-full);
  border:        1px solid rgba(37,99,235,0.15);
}

.tech-tag img {
  width: 14px;
  height: 14px;
}

.card-actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: auto;
  padding-top: var(--space-lg);
}

.btn-ghost {
  flex: 1;
  padding: 9px;
  text-align: center;
  font: 600 13px/1 var(--font-body);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: all var(--duration-fast) var(--ease-out);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
}

.btn-ghost:hover {
  border-color: var(--color-blue);
  color: var(--color-blue);
  background: var(--color-blue-faint);
}

/* ── Achievements Section ── */
.achievements-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-xl);
}

.achievement-card {
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  transition: all var(--duration-base) var(--ease-out);
}

.achievement-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--color-blue-faint);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-xs);
  color: var(--color-blue);
}

.achievement-title {
  font: 700 18px var(--font-display);
  color: var(--color-text);
}

.achievement-event {
  font: 500 14px var(--font-body);
  color: var(--color-blue);
}

.achievement-year {
  font: 500 12px var(--font-body);
  color: var(--color-text-faint);
  background: var(--color-bg-muted);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  align-self: flex-start;
  margin-bottom: var(--space-xs);
}

.achievement-detail {
  font: 400 14px/1.6 var(--font-body);
  color: var(--color-text-muted);
}

/* ── Education Timeline Specifics ── */
.education-cgpa {
  font-weight: 600;
  color: var(--color-success);
  margin-top: var(--space-xs);
}

/* ── Certifications Section ── */
.certifications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-xl);
}

.cert-card {
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  transition: all var(--duration-base) var(--ease-out);
}

.cert-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-md);
}

.cert-logo {
  width: 48px;
  height: 48px;
  object-fit: contain;
  background: white;
  border-radius: var(--radius-sm);
  padding: 4px;
  border: 1px solid var(--color-border);
}

.cert-title {
  font: 600 16px var(--font-display);
  color: var(--color-text);
  flex: 1;
}

.cert-issuer {
  font: 500 14px var(--font-body);
  color: var(--color-blue);
}

.cert-year {
  font: 500 12px var(--font-body);
  color: var(--color-text-faint);
}

.cert-action {
  opacity: 0;
  transform: translateY(5px);
  transition: all var(--duration-base) var(--ease-out);
  margin-top: var(--space-xs);
}

.cert-card:hover .cert-action {
  opacity: 1;
  transform: translateY(0);
}

/* ── Contact Section Styling ── */
.contact-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: var(--space-2xl);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.contact-card {
  padding: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  text-decoration: none;
  color: inherit;
  transition: all var(--duration-base) var(--ease-out);
}

.contact-icon-wrapper {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-blue-faint);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-blue);
  flex-shrink: 0;
}

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

.contact-label {
  font: 500 12px var(--font-body);
  color: var(--color-text-faint);
  text-transform: uppercase;
}

.contact-value {
  font: 600 15px var(--font-body);
  color: var(--color-text);
  word-break: break-all;
}

.contact-card:hover .contact-icon-wrapper {
  background: var(--color-blue);
  color: white;
}

.contact-form-wrapper {
  padding: var(--space-2xl);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.form-group label {
  font: 600 13px var(--font-body);
  color: var(--color-text-muted);
}

.form-input, .form-textarea {
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font: 400 14px var(--font-body);
  outline: none;
  background: rgba(255, 255, 255, 0.8);
  transition: all var(--duration-fast);
}

.form-input:focus, .form-textarea:focus {
  border-color: var(--color-blue);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
  background: white;
}

.contact-submit {
  padding: 14px;
  background: var(--gradient-brand);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font: 600 15px var(--font-body);
  cursor: pointer;
  transition: all var(--duration-base) var(--ease-out);
  box-shadow: 0 4px 14px rgba(37,99,235,0.30);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.contact-submit:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37,99,235,0.40);
}

.contact-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.form-success-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
  text-align: center;
  gap: var(--space-md);
}

.success-checkmark {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #d1fae5;
  color: var(--color-success);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
}

/* ── Footer Styling ── */
.footer {
  background-color: #0F172A;
  color: white;
  padding: var(--space-3xl) var(--space-xl) var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  max-width: 1200px;
  margin: 0 auto;
}

.footer-logo {
  font: 700 24px/1 var(--font-display);
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
  margin-bottom: var(--space-sm);
  display: inline-block;
}

.footer-tagline {
  color: var(--color-text-faint);
  font-size: 14px;
  margin-bottom: var(--space-md);
  max-width: 300px;
}

.footer-socials {
  display: flex;
  gap: var(--space-xs);
}

.footer-socials .social-icon {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.1);
}

.footer-socials .social-icon img {
  filter: brightness(0) invert(1);
}

.footer-socials .social-icon:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: white;
  transform: translateY(-3px);
}

.footer-title {
  font: 600 16px var(--font-display);
  margin-bottom: var(--space-md);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-links a {
  color: var(--color-text-faint);
  text-decoration: none;
  font-size: 14px;
  transition: color var(--duration-fast);
}

.footer-links a:hover {
  color: white;
}

.footer-credit {
  color: var(--color-text-faint);
  font-size: 14px;
  line-height: 1.6;
}

.footer-credit span {
  color: #ef4444;
}

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: var(--space-lg);
  text-align: center;
  color: var(--color-text-faint);
  font-size: 12px;
  letter-spacing: 0.05em;
}

.back-to-top {
  position: fixed;
  bottom: 28px;
  left: 28px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-brand);
  color: white;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(37,99,235,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--duration-base) var(--ease-spring);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  z-index: 999;
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 20px rgba(37,99,235,0.45);
}

/* ── Jade AI Chatbot Styling ── */
.chat-toggle {
  position:      fixed;
  bottom:        28px; right: 28px;
  width:         56px; height: 56px;
  border-radius: 50%;
  background:    var(--gradient-brand);
  border:        none;
  cursor: pointer;
  box-shadow:    0 4px 20px rgba(37,99,235,0.45);
  display:       flex;
  align-items: center;
  justify-content: center;
  transition:    all var(--duration-base) var(--ease-spring);
  z-index:       999;
}

.chat-toggle:hover {
  transform: scale(1.10);
  box-shadow: 0 8px 28px rgba(37,99,235,0.55);
}

.chat-toggle svg {
  width: 24px;
  height: 24px;
  fill: white;
}

.chat-window {
  position:      fixed;
  bottom:        96px; right: 28px;
  width:         340px;
  height:        500px;
  display:       flex;
  flex-direction: column;
  border-radius: var(--radius-xl);
  overflow:      hidden;
  background:    rgba(255,255,255,0.75);
  backdrop-filter: blur(24px) saturate(200%);
  border:        1px solid rgba(255,255,255,0.80);
  box-shadow:    0 20px 60px rgba(37,99,235,0.15), 0 4px 20px rgba(0,0,0,0.06);
  transform:     translateY(20px) scale(0.95);
  opacity:       0;
  pointer-events: none;
  transition:    all 0.3s var(--ease-spring);
  z-index:       998;
}

.chat-window.open {
  transform:     translateY(0) scale(1);
  opacity:       1;
  pointer-events: all;
}

.chat-header {
  padding:       14px 16px;
  background:    var(--gradient-brand);
  color:         white;
  display:       flex;
  align-items: center;
  gap: 10px;
}

.chat-header-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255,255,255,0.20);
  display: flex;
  align-items: center;
  justify-content: center;
  font: 700 14px/1 var(--font-display);
  color: white;
}

.chat-header-title {
  font: 600 14px var(--font-display);
}

.chat-online {
  width: 8px;
  height: 8px;
  background: #4ade80;
  border-radius: 50%;
  margin-left: auto;
  box-shadow: 0 0 6px #4ade80;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.msg-bubble {
  max-width:     75%;
  padding:       10px 14px;
  border-radius: 14px;
  font:          400 14px/1.55 var(--font-body);
}

.msg-user {
  background: var(--gradient-brand);
  color: white;
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}

.msg-ai {
  background: var(--glass-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}

.typing-indicator {
  display: flex;
  gap: 4px;
  padding: 10px 14px;
  align-self: flex-start;
  background: var(--glass-bg);
  border: 1px solid var(--color-border);
  border-radius: 14px;
}

.typing-dot {
  width: 7px;
  height: 7px;
  background: var(--color-text-muted);
  border-radius: 50%;
  animation: typingBounce 1.2s infinite ease-in-out;
}

.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
  0%, 80%, 100% { transform: scale(0.7); opacity: 0.4; }
  40% { transform: scale(1); opacity: 1; }
}

.chat-input-row {
  padding: 12px 14px;
  border-top: 1px solid var(--color-border);
  display: flex;
  gap: 8px;
  background: rgba(255,255,255,0.60);
}

.chat-input {
  flex: 1;
  padding: 9px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font: 400 14px/1 var(--font-body);
  outline: none;
  background: white;
}

.chat-input:focus {
  border-color: var(--color-blue);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.12);
}

.chat-send {
  padding: 9px 16px;
  background: var(--gradient-brand);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  font: 600 13px/1 var(--font-body);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* ── Mobile Responsive Breakpoints ── */

/* ── Tablet ── */
@media (max-width: 1024px) {
  .navbar {
    padding: 0 var(--space-lg);
  }
  .hero {
    grid-template-columns: 1fr;
    padding-top: 100px;
    gap: var(--space-xl);
  }
  .hero-visual {
    display: none; /* Hide visual right column on tablet as per breakpoint spec */
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* ── Mobile ── */
@media (max-width: 768px) {
  .navbar {
    padding: 0 var(--space-md);
  }
  .nav-links {
    display: none;
  }
  .nav-cta {
    display: none; /* Hide desktop Hire Me button on mobile header */
  }
  .nav-hamburger {
    display: flex;
  }
  .hero {
    padding: 90px var(--space-md) var(--space-2xl);
  }
  .hero-stats {
    flex-direction: column;
    gap: var(--space-sm);
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .certifications-grid {
    grid-template-columns: 1fr;
  }
  .timeline {
    padding-left: var(--space-lg);
  }
  .timeline-item {
    padding-left: var(--space-lg);
  }
  .timeline-item::before {
    left: -20px;
  }
  .timeline::before {
    left: -12px;
  }
  .chat-window {
    width: calc(100vw - 24px);
    right: 12px;
    height: 450px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  .contact-form-wrapper {
    padding: var(--space-lg);
  }
}

/* ── Mobile slide-in menu drawer ── */
.mobile-menu {
  position:   fixed;
  inset: 0;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px);
  z-index:    900;
  display:    flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
  transform:  translateX(100%);
  transition: transform 0.35s var(--ease-out);
}

.mobile-menu.open {
  transform: translateX(0);
}

.mobile-menu a {
  font: 600 24px/1 var(--font-display);
  color: var(--color-text);
  text-decoration: none;
}

.mobile-menu a:hover {
  color: var(--color-blue);
}

.mobile-menu-cta {
  padding: 12px 36px;
  background: var(--gradient-brand);
  color: white;
  font: 600 18px var(--font-body);
  border-radius: var(--radius-full);
  text-decoration: none;
  margin-top: 16px;
}

/* ── ADDITIONAL VISUAL ENHANCEMENTS ── */

/* ── ENHANCEMENT 3 — HERO SECTION UPGRADES ── */

/* Availability badge — pulse ring on the green dot */
@keyframes pingRing {
  0%    { transform: scale(1);   opacity: 0.8; }
  100%  { transform: scale(2.2); opacity: 0; }
}
.hero-badge::before {
  position: relative;
}
.hero-badge::before::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: #22c55e;
  animation: pingRing 1.8s ease-out infinite;
}

/* Stat cards — gradient top border accent */
.stat-card {
  border-top: 2px solid transparent;
  background-image: linear-gradient(white, white),
                    var(--gradient-brand);
  background-origin: border-box;
  background-clip: padding-box, border-box;
}

/* Stat number — gradient text */
.stat-number {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* CTA button — shimmer sweep on hover */
@keyframes btnShimmer {
  0%   { left: -100%; }
  100% { left: 200%; }
}
.btn-primary::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 60%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
  transform: skewX(-20deg);
  transition: none;
}
.btn-primary:hover::before {
  animation: btnShimmer 0.6s ease forwards;
}

/* ── ENHANCEMENT 4 — SKILLS SECTION UPGRADES ── */

/* Active filter tab */
.skill-filter-tab {
  padding:       8px 18px;
  border-radius: var(--radius-full);
  font:          600 13px/1 var(--font-body);
  border:        1px solid var(--color-border);
  background:    transparent;
  color:         var(--color-text-muted);
  cursor:        pointer;
  transition:    all var(--duration-base) var(--ease-out);
}
.skill-filter-tab:hover {
  border-color: var(--color-blue);
  color:        var(--color-blue);
  background:   var(--color-blue-faint);
}
.skill-filter-tab.active {
  background:  var(--gradient-brand);
  color:       white;
  border-color:transparent;
  box-shadow:  0 4px 14px rgba(37,99,235,0.30);
}

/* Skill pill — glow on hover by category */
.skill-pill[data-category="languages"]:hover { box-shadow: 0 4px 16px rgba(37,99,235,0.22); }
.skill-pill[data-category="frontend"]:hover  { box-shadow: 0 4px 16px rgba(124,58,237,0.22); }
.skill-pill[data-category="backend"]:hover   { box-shadow: 0 4px 16px rgba(8,145,178,0.22); }
.skill-pill[data-category="ai"]:hover        { box-shadow: 0 4px 16px rgba(16,185,129,0.22); }
.skill-pill[data-category="ar"]:hover        { box-shadow: 0 4px 16px rgba(245,158,11,0.22); }

/* ── ENHANCEMENT 5 — EXPERIENCE TIMELINE UPGRADES ── */

/* IBM company name — gradient text */
.timeline-company {
  background: var(--gradient-ocean);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 600;
}

/* Timeline dot — animated outer ring */
@keyframes dotPulse {
  0%,100% { box-shadow: 0 0 0 3px rgba(37,99,235,0.20); }
  50%     { box-shadow: 0 0 0 6px rgba(37,99,235,0.10); }
}
.timeline-item::before {
  animation: dotPulse 3s ease-in-out infinite;
}

/* Internship badge — gradient pill */
.timeline-date {
  background:  var(--gradient-brand);
  color:       white;
  font-weight: 600;
}

/* ── ENHANCEMENT 6 — PROJECT CARDS UPGRADES ── */

/* Gradient top border — always visible (not just on hover) for featured card */
.project-card.featured::after {
  opacity: 1;
  height: 4px;
  background: var(--gradient-sunset);
}

/* Project title — hover gradient text */
.project-card:hover .project-title {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Tech tag — coloured by category */
.tech-tag[data-tech="react"]      { background: #EFF6FF; color: #1d4ed8; border-color: rgba(29,78,216,0.20); }
.tech-tag[data-tech="python"]     { background: #EFF6FF; color: #2563EB; border-color: rgba(37,99,235,0.20); }
.tech-tag[data-tech="mongodb"]    { background: #F0FDF4; color: #15803d; border-color: rgba(21,128,61,0.20); }
.tech-tag[data-tech="unity"]      { background: #F8FAFC; color: #0F172A; border-color: rgba(15,23,42,0.20); }
.tech-tag[data-tech="flask"]      { background: #F0FDF4; color: #059669; border-color: rgba(5,150,105,0.20); }
.tech-tag[data-tech="nodejs"]     { background: #F0FDF4; color: #16a34a; border-color: rgba(22,163,74,0.20); }

/* Card image placeholder — gradient instead of grey */
.project-card-image {
  background: var(--gradient-soft);
  min-height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--color-border);
}

/* ── ENHANCEMENT 7 — ACHIEVEMENTS SECTION UPGRADES ── */

/* Achievement card — gradient border */
.achievement-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

/* Trophy icon container */
.achievement-icon {
  width:        56px; height: 56px;
  border-radius: var(--radius-md);
  background:   var(--gradient-sunset);
  display:      flex; align-items: center; justify-content: center;
  box-shadow:   0 4px 14px rgba(244,63,94,0.25);
  margin-bottom: var(--space-md);
}
.achievement-icon svg { width: 28px; height: 28px; color: white; fill: white; }

/* Prize amount highlight */
.achievement-prize {
  font:       700 15px/1 var(--font-display);
  color:      var(--color-emerald);
  background: var(--color-emerald-faint);
  padding:    3px 10px;
  border-radius: var(--radius-full);
  display:    inline-block;
  margin-top: var(--space-sm);
}

/* ── ENHANCEMENT 8 — CERTIFICATIONS UPGRADES ── */

/* Cert card — issuer colour accent on hover */
.cert-card[data-issuer="ibm"]:hover      { border-color: rgba(37,99,235,0.40); box-shadow: var(--glow-blue); }
.cert-card[data-issuer="microsoft"]:hover{ border-color: rgba(0,120,212,0.40); box-shadow: 0 0 20px rgba(0,120,212,0.20); }
.cert-card[data-issuer="nptel"]:hover    { border-color: rgba(16,185,129,0.40); box-shadow: var(--glow-cyan); }

/* View cert button — gradient on hover */
.cert-view-btn {
  display:       inline-flex;
  align-items:   center;
  gap:           6px;
  padding:       7px 14px;
  border-radius: var(--radius-full);
  font:          600 12px/1 var(--font-body);
  border:        1px solid var(--color-border);
  color:         var(--color-text-muted);
  background:    transparent;
  opacity:       0;
  transform:     translateY(6px);
  transition:    all var(--duration-base) var(--ease-out);
  cursor:        pointer;
}
.cert-card:hover .cert-view-btn {
  opacity:       1;
  transform:     translateY(0);
  background:    var(--gradient-brand);
  color:         white;
  border-color:  transparent;
}

/* ── ENHANCEMENT 9 — JADE AI CHATBOT UPGRADES ── */

/* Toggle button — rotating gradient border ring */
@keyframes rotateBorder {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
.chat-toggle-ring {
  position:      absolute;
  inset:         -3px;
  border-radius: 50%;
  background:    conic-gradient(from 0deg, #2563EB, #7C3AED, #0891B2, #2563EB);
  animation:     rotateBorder 3s linear infinite;
  z-index:       -1;
}

/* Message bubbles — upgrade */
.msg-ai {
  background: linear-gradient(
    135deg,
    rgba(255,255,255,0.80) 0%,
    rgba(239,246,255,0.60) 100%
  );
  border: 1px solid rgba(37,99,235,0.15);
}

/* Input focus — gradient ring */
.chat-input:focus {
  border-color: var(--color-blue);
  box-shadow:   0 0 0 3px rgba(37,99,235,0.15),
                0 0 0 1px var(--color-blue);
  outline: none;
}

/* Send button — shimmer on hover */
.chat-send { overflow: hidden; position: relative; }
.chat-send:hover::before {
  animation: btnShimmer 0.6s ease forwards;
}

/* ── ENHANCEMENT 10 — FOOTER UPGRADES ── */

/* Footer gradient divider at top */
.footer::before {
  content:    '';
  position:   absolute;
  top: 0; left: 0; right: 0;
  height:     1px;
  background: var(--gradient-aurora);
}

/* Footer logo — gradient text */
.footer-logo {
  background:              var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip:         text;
}

/* Social icons in footer — white versions, hover → brand color */
.footer .social-icon {
  background:   rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.12);
}
.footer .social-icon:hover {
  background:   rgba(37,99,235,0.25);
  border-color: rgba(37,99,235,0.50);
  transform:    translateY(-3px);
  box-shadow:   0 6px 16px rgba(37,99,235,0.30);
}

/* Back to top button */
.back-to-top {
  position:      fixed;
  bottom:        28px; left: 28px;
  width:         44px; height: 44px;
  border-radius: 50%;
  background:    var(--gradient-brand);
  border:        none;
  cursor:        pointer;
  display:       flex; align-items: center; justify-content: center;
  box-shadow:    0 4px 14px rgba(37,99,235,0.35);
  opacity:       0;
  transform:     translateY(10px);
  transition:    all var(--duration-base) var(--ease-out);
  z-index:       500;
}
.back-to-top.visible { opacity: 1; transform: translateY(0); }
.back-to-top:hover   { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(37,99,235,0.45); }

/* ── ENHANCEMENT 11 — PAGE-WIDE POLISH ── */

/* Selection colour */
::selection { background: rgba(37,99,235,0.15); color: var(--color-blue); }

/* Scrollbar styling */
::-webkit-scrollbar       { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-bg-muted); }
::-webkit-scrollbar-thumb { background: var(--gradient-brand); border-radius: 3px; }

/* Section headings — gradient underline accent */
.section-title {
  position:    relative;
  display:     inline-block;
  padding-bottom: 12px;
}
.section-title::after {
  content:   '';
  position:  absolute;
  bottom:    0; left: 0;
  width:     48px; height: 3px;
  background: var(--gradient-brand);
  border-radius: 2px;
  transition: width var(--duration-slow) var(--ease-out);
}
.section-title:hover::after { width: 100%; }

/* Section subtitle */
.section-subtitle {
  font:        400 17px/1.6 var(--font-body);
  color:       var(--color-text-muted);
  max-width:   560px;
  margin-top:  var(--space-sm);
}

/* Smooth scroll on html */
html { scroll-behavior: smooth; }

/* Focus visible — keyboard accessibility */
:focus-visible {
  outline:        2px solid var(--color-blue);
  outline-offset: 3px;
  border-radius:  var(--radius-sm);
}

/* Link default */
a {
  color:           var(--color-blue);
  text-decoration: none;
  transition:      color var(--duration-fast);
}
a:hover { color: var(--color-violet); }

/* ── MASTER VISUAL OVERHAUL STYLES ── */

/* Skill pills — keep existing, add colored left micro-border */
.skill-pill {
  border-left: 3px solid var(--color-blue);
}
.skill-pill[data-category="frontend"] { border-left-color: var(--color-violet); }
.skill-pill[data-category="backend"]  { border-left-color: var(--color-cyan); }
.skill-pill[data-category="ai"]       { border-left-color: var(--color-emerald); }
.skill-pill[data-category="ar"]       { border-left-color: var(--color-amber); }
.skill-pill[data-category="tools"]    { border-left-color: #64748B; }

/* Experience timeline cards — blue left accent stripe */
.timeline-item {
  border-left: 4px solid var(--color-blue) !important;
  background: var(--color-surface) !important;
  box-shadow: 0 2px 16px rgba(37,99,235,0.07) !important;
}

/* Project cards — each gets a unique top gradient bar always visible */
.project-card:nth-child(1) { border-top: 3px solid transparent !important; border-image: linear-gradient(90deg,#2563EB,#0891B2) 1 !important; }
.project-card:nth-child(2) { border-top: 3px solid transparent !important; border-image: linear-gradient(90deg,#F43F5E,#F59E0B) 1 !important; }
.project-card:nth-child(3) { border-top: 3px solid transparent !important; border-image: linear-gradient(90deg,#7C3AED,#2563EB) 1 !important; }
.project-card { background: var(--color-surface) !important; }

/* Achievement cards — clean surface and border */
.achievement-card {
  background: var(--color-surface) !important;
  border: 1px solid var(--color-border) !important;
}

/* Cert cards — issuer colour top bar */
.cert-card { background: var(--color-surface) !important; border-top: 3px solid var(--color-blue) !important; }
.cert-card[data-issuer="ibm"]       { border-top-color: #2563EB !important; }
.cert-card[data-issuer="microsoft"] { border-top-color: #00A4EF !important; }
.cert-card[data-issuer="nptel"]     { border-top-color: #10B981 !important; }

/* Contact info cards */
.contact-info-card {
  background: var(--color-surface) !important;
  border-left: 4px solid var(--color-blue) !important;
  transition: all 0.25s cubic-bezier(0.16,1,0.3,1) !important;
}
.contact-info-card:hover {
  transform: translateX(6px) !important;
  border-left-color: var(--color-violet) !important;
  box-shadow: 0 4px 20px rgba(37,99,235,0.12) !important;
}

/* About stats card */
.about-stats-card {
  background: linear-gradient(135deg, rgba(37,99,235,0.06) 0%, rgba(124,58,237,0.04) 100%) !important;
  border: 1px solid rgba(37,99,235,0.15) !important;
}

/* Section eyebrow labels (ABOUT ME, SKILLS, etc.) */
.section-eyebrow {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font: 700 11px/1 var(--font-body) !important;
  letter-spacing: 0.12em !important;
  text-transform: uppercase !important;
  display: inline-block;
}

/* Section main headings */
.section-heading {
  color: var(--color-text) !important;
  font: 700 clamp(32px,5vw,52px)/1.1 var(--font-display) !important;
  margin-bottom: var(--space-md);
}

/* Card titles */
.card-title { color: var(--color-text) !important; font: 600 18px/1.3 var(--font-display) !important; }

/* Card subtitles / company names — gradient */
.card-subtitle {
  background: var(--gradient-ocean);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 600 !important;
}

/* Year / date badges */
.date-badge {
  background: var(--gradient-brand) !important;
  color: white !important;
  padding: 3px 12px !important;
  border-radius: 999px !important;
  font: 600 12px/1.4 var(--font-body) !important;
}

/* CGPA badge */
.cgpa-badge {
  color: var(--color-emerald) !important;
  font: 700 15px/1 var(--font-display) !important;
  background: #ECFDF5 !important;
  padding: 4px 12px !important;
  border-radius: 999px !important;
  border: 1px solid rgba(16,185,129,0.25) !important;
  display: inline-block;
}

/* Cert issuer names */
.cert-issuer {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 600 !important;
  font-size: 13px !important;
}

/* Prize / award amount */
.prize-text {
  color: var(--color-emerald) !important;
  font-weight: 700 !important;
}

/* Achievement event name */
.achievement-event {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 600 !important;
}

/* Universal transition base — add to these selectors */
.glass,
.project-card,
.cert-card,
.achievement-card,
.timeline-item,
.contact-info-card,
.skill-pill,
.btn-primary,
.btn-outline,
.btn-ghost,
.social-icon,
.nav-links a,
.skill-filter-tab {
  transition: all 0.28s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

/* Hover lifts */
.project-card:hover    { transform: translateY(-6px) !important; box-shadow: 0 20px 48px rgba(37,99,235,0.14) !important; }
.cert-card:hover       { transform: translateY(-4px) !important; box-shadow: 0 12px 32px rgba(37,99,235,0.12) !important; }
.achievement-card:hover{ transform: translateY(-4px) !important; box-shadow: 0 12px 32px rgba(124,58,237,0.14) !important; }
.skill-pill:hover      { transform: translateY(-2px) scale(1.04) !important; }

/* Send message button — keep gradient, add shimmer sweep */
.btn-send {
  background: var(--gradient-brand) !important;
  color: white !important;
  overflow: hidden !important;
  position: relative !important;
}
.btn-send::before {
  content: '';
  position: absolute;
  top: 0; left: -100%; width: 60%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.22), transparent);
  transform: skewX(-20deg);
}
.btn-send:hover::before { animation: btnShimmer 0.55s ease forwards; }

/* Hero background — animated mesh, NOT plain white/grey */
.hero {
  background:
    radial-gradient(ellipse at 15% 30%, rgba(37,99,235,0.13) 0%, transparent 55%),
    radial-gradient(ellipse at 85% 70%, rgba(124,58,237,0.10) 0%, transparent 55%),
    radial-gradient(ellipse at 55% 10%, rgba(8,145,178,0.07) 0%, transparent 45%),
    var(--color-bg) !important;
  min-height: 100vh;
  position: relative;
  overflow: hidden;
}

/* Animated name shimmer — already defined, ensure applied */
.hero-name {
  background: linear-gradient(270deg, #2563EB, #7C3AED, #0891B2, #2563EB);
  background-size: 300% 300%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 6s ease infinite;
}

/* Tagline — make bold and gradient */
.hero-tagline {
  font: 700 clamp(18px, 2.5vw, 24px)/1.4 var(--font-display) !important;
  background: var(--gradient-aurora);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: var(--space-md) 0 !important;
}

/* Hero body text — slightly larger, better color */
.hero-body {
  font: 400 17px/1.75 var(--font-body) !important;
  color: var(--color-text-muted) !important;
  max-width: 520px;
}

/* Profile image — 3D tilt card effect */
.hero-profile-wrapper {
  position: relative;
  display: inline-block;
  transform-style: preserve-3d;
  transition: transform 0.4s var(--ease-out);
}
.hero-profile-wrapper:hover {
  transform: rotateY(-8deg) rotateX(4deg) scale(1.03);
}

/* Profile outer glow ring */
.hero-profile-img {
  border-radius: 50%;
  border: 4px solid transparent !important;
  background-clip: padding-box;
  position: relative;
}
.hero-profile-ring {
  position: absolute;
  inset: -5px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, #2563EB, #7C3AED, #0891B2, #2563EB);
  animation: rotateBorder 4s linear infinite;
  z-index: -1;
}

/* Floating mini-cards — upgrade styling */
.hero-float-card {
  backdrop-filter: blur(12px) saturate(180%) !important;
  background: rgba(255,255,255,0.80) !important;
  border: 1px solid rgba(255,255,255,0.90) !important;
  box-shadow: 0 8px 24px rgba(37,99,235,0.15) !important;
  font: 600 12px/1 var(--font-body) !important;
  padding: 10px 16px !important;
  border-radius: var(--radius-md) !important;
}
.float-card-win   { background: linear-gradient(135deg,rgba(255,243,205,0.90),rgba(253,230,138,0.85)) !important; color: #92400e !important; border-color: rgba(253,230,138,0.80) !important; }
.float-card-ar    { background: linear-gradient(135deg,rgba(224,242,254,0.90),rgba(186,230,253,0.85)) !important; color: #0369a1 !important; border-color: rgba(186,230,253,0.80) !important; }
.float-card-stack { background: linear-gradient(135deg,rgba(245,243,255,0.90),rgba(221,214,254,0.85)) !important; color: #5b21b6 !important; border-color: rgba(221,214,254,0.80) !important; }

/* Stats row — gradient border top on each card */
.stat-card {
  background: var(--color-surface) !important;
  border: 1px solid rgba(37,99,235,0.15) !important;
  border-top: 3px solid transparent !important;
  border-image: var(--gradient-brand) 1 !important;
  box-shadow: 0 4px 16px rgba(37,99,235,0.08) !important;
  transition: all 0.25s var(--ease-out) !important;
}
.stat-card:hover {
  transform: translateY(-4px) !important;
  box-shadow: 0 10px 28px rgba(37,99,235,0.14) !important;
}

/* Education section — own background identity */
#education {
  background:
    radial-gradient(ellipse at 80% 20%, rgba(37,99,235,0.08) 0%, transparent 55%),
    var(--color-bg-alt) !important;
  padding: var(--space-3xl) var(--space-xl) !important;
}

/* Education card — premium feel */
.education-card {
  background: var(--color-surface) !important;
  border-left: 5px solid var(--color-blue) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: 0 4px 24px rgba(37,99,235,0.09) !important;
  padding: var(--space-xl) var(--space-2xl) !important;
  transition: all 0.28s var(--ease-out) !important;
  position: relative !important;
  overflow: hidden !important;
}

/* Decorative gradient blob inside card */
.education-card::after {
  content: '';
  position: absolute;
  top: -40px; right: -40px;
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(37,99,235,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.education-card:hover {
  transform: translateY(-4px) !important;
  box-shadow: 0 12px 36px rgba(37,99,235,0.14) !important;
  border-left-color: var(--color-violet) !important;
}

/* Degree title */
.edu-degree {
  font: 700 20px/1.3 var(--font-display) !important;
  color: var(--color-text) !important;
}

/* College name */
.edu-college {
  background: var(--gradient-ocean);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font: 600 15px/1.4 var(--font-body) !important;
  margin-top: 4px;
}

.footer {
  background: #0F172A !important;
  padding: var(--space-lg) var(--space-xl) !important;
  position: relative;
}

/* Aurora top border */
.footer::before {
  content: '' !important;
  position: absolute !important;
  top: 0 !important; left: 0 !important; right: 0 !important; height: 2px !important;
  background: var(--gradient-aurora) !important;
}

/* Footer layout — two column only */
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-xl);
  max-width: 1100px;
  margin: 0 auto;
}

/* Left — branding */
.footer-brand-name {
  font: 700 28px/1 var(--font-display);
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-sm);
}

/* Tagline — replace "Driven by curiosity..." with this version */
.footer-tagline {
  font: 400 14px/1.6 var(--font-body);
  color: rgba(255,255,255,0.45);
  max-width: 280px;
  margin-bottom: var(--space-lg);
}

/* Footer social icons — white + hover brand */
.footer .social-icon {
  background: rgba(255,255,255,0.07) !important;
  border: 1px solid rgba(255,255,255,0.12) !important;
  transition: all 0.25s var(--ease-out) !important;
}
.footer .social-icon:hover {
  background: rgba(37,99,235,0.25) !important;
  border-color: rgba(37,99,235,0.50) !important;
  transform: translateY(-3px) !important;
  box-shadow: 0 6px 16px rgba(37,99,235,0.30) !important;
}

/* Right — built with */
.footer-right {
  text-align: right;
  color: rgba(255,255,255,0.35) !important;
  font: 400 13px/1.7 var(--font-body) !important;
}
.footer-right strong {
  color: rgba(255,255,255,0.65) !important;
}

/* Bottom bar */
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08) !important;
  margin-top: var(--space-xl) !important;
  padding-top: var(--space-lg) !important;
  text-align: center !important;
  color: rgba(255,255,255,0.28) !important;
  font: 400 12px/1 var(--font-body) !important;
}

/* Section cards — subtle 3D on hover using perspective */
.project-card,
.cert-card,
.achievement-card {
  transform-style: preserve-3d;
  perspective: 800px;
}

/* Cert cards — shimmer sweep on hover */
.cert-card { overflow: hidden; position: relative; }
.cert-card::before {
  content: '';
  position: absolute;
  top: 0; left: -100%; width: 50%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.18), transparent);
  transform: skewX(-20deg);
  transition: none;
  pointer-events: none;
}
.cert-card:hover::before { animation: btnShimmer 0.55s ease forwards; }

/* ─── Theme Toggle Button ────────────────────────────────────── */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1.5px solid rgba(124, 58, 237, 0.35);
  background: rgba(124, 58, 237, 0.08);
  color: var(--color-violet);
  cursor: pointer;
  transition: background 0.25s, border-color 0.25s, transform 0.2s, box-shadow 0.25s;
  flex-shrink: 0;
  outline: none;
  padding: 0;
}

.theme-toggle:hover {
  background: rgba(124, 58, 237, 0.18);
  border-color: var(--color-violet);
  transform: rotate(20deg) scale(1.1);
  box-shadow: 0 0 14px rgba(124, 58, 237, 0.35);
}

.theme-toggle:active {
  transform: rotate(0deg) scale(0.95);
}

.theme-toggle svg {
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.theme-toggle:hover svg {
  transform: rotate(30deg);
}

/* Timeline logo */
.timeline-logo {
  width: 44px;
  height: 44px;
  object-fit: contain;
  border-radius: 10px;
  background: #fff;
  padding: 4px;
  border: 1px solid rgba(0,0,0,0.08);
  flex-shrink: 0;
}