/* ============================================================
   PORTFOLIO — styles.css
   Modern · Premium · Futuristic · Light Professional Theme
   ============================================================ */

/* ── GOOGLE FONTS ────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── DESIGN TOKENS ───────────────────────────────────────── */
:root {
  /* Color Palette */
  --clr-bg:          #F8FAFC;
  --clr-bg-alt:      #F1F5F9;
  --clr-surface:     #FFFFFF;
  --clr-border:      #E2E8F0;
  --clr-border-soft: #CBD5E1;
  --clr-text:        #0F172A;
  --clr-text-2:      #334155;
  --clr-text-3:      #64748B;
  --clr-text-muted:  #94A3B8;
  --clr-blue:        #2563EB;
  --clr-blue-light:  #3B82F6;
  --clr-blue-pale:   #DBEAFE;
  --clr-purple:      #7C3AED;
  --clr-purple-light:#8B5CF6;
  --clr-purple-pale: #EDE9FE;
  --clr-gradient:    linear-gradient(135deg, #2563EB 0%, #7C3AED 100%);
  --clr-gradient-soft: linear-gradient(135deg, #DBEAFE 0%, #EDE9FE 100%);
  --clr-gradient-hero: linear-gradient(135deg, #F8FAFC 0%, #EDE9FE 50%, #DBEAFE 100%);

  /* Typography */
  --font-sans:  'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-head:  'Space Grotesk', 'Inter', sans-serif;
  --font-mono:  'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --space-xs:   0.25rem;
  --space-sm:   0.5rem;
  --space-md:   1rem;
  --space-lg:   1.5rem;
  --space-xl:   2rem;
  --space-2xl:  3rem;
  --space-3xl:  4rem;
  --space-4xl:  6rem;
  --space-5xl:  8rem;

  /* Border radius */
  --radius-sm:  0.375rem;
  --radius-md:  0.75rem;
  --radius-lg:  1rem;
  --radius-xl:  1.5rem;
  --radius-2xl: 2rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs:  0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md:  0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -1px rgba(0,0,0,0.04);
  --shadow-lg:  0 10px 25px -3px rgba(0,0,0,0.08), 0 4px 10px -2px rgba(0,0,0,0.04);
  --shadow-xl:  0 20px 40px -8px rgba(0,0,0,0.12), 0 8px 16px -4px rgba(0,0,0,0.06);
  --shadow-blue: 0 8px 30px -4px rgba(37,99,235,0.25);
  --shadow-purple: 0 8px 30px -4px rgba(124,58,237,0.2);

  /* Transitions */
  --ease-out:   cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --dur-fast:   150ms;
  --dur-med:    300ms;
  --dur-slow:   500ms;

  /* Layout */
  --max-width: 1200px;
  --nav-height: 72px;
}

/* ── RESET & BASE ────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}



body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--clr-text);
  background-color: var(--clr-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
  overscroll-behavior-x: none;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + 1.5rem);
  -webkit-text-size-adjust: 100%;
}

img { max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ── TYPOGRAPHY ──────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--clr-text);
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: 1.125rem; }

p { color: var(--clr-text-2); }

.mono { font-family: var(--font-mono); }

/* ── LAYOUT UTILITIES ────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section {
  padding: var(--space-5xl) 0;
}

.section-alt {
  background-color: var(--clr-bg-alt);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-blue);
  background: var(--clr-blue-pale);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

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

.section-subtitle {
  font-size: 1.125rem;
  color: var(--clr-text-3);
  max-width: 600px;
  margin: 0 auto;
}

/* ── NAV ─────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: background var(--dur-med) var(--ease-out),
              border-color var(--dur-med) var(--ease-out),
              box-shadow var(--dur-med) var(--ease-out);
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: rgba(248, 250, 252, 0.92);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom-color: var(--clr-border);
  box-shadow: var(--shadow-sm);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
}

.nav__profile-pic {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 2px solid transparent;
  background: var(--clr-gradient);
  background-clip: padding-box;
  box-shadow: 0 0 0 2px var(--clr-blue);
  flex-shrink: 0;
}

.nav__logo-text {
  font-family: var(--font-head);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: var(--clr-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.nav__link {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--clr-text-3);
  border-radius: var(--radius-md);
  transition: color var(--dur-fast), background var(--dur-fast);
}

.nav__link:hover,
.nav__link.active {
  color: var(--clr-blue);
  background: var(--clr-blue-pale);
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  background: var(--clr-gradient);
  color: #fff !important;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  box-shadow: var(--shadow-blue);
  transition: transform var(--dur-fast), box-shadow var(--dur-fast);
}

.nav__cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 35px -4px rgba(37,99,235,0.35);
  background: var(--clr-gradient) !important;
}

/* Hamburger (mobile) */
.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-sm);
  cursor: pointer;
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  transition: background var(--dur-fast);
}

.nav__hamburger:hover {
  background: var(--clr-bg-alt);
}

.nav__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--clr-text);
  border-radius: var(--radius-full);
  transition: transform var(--dur-med), opacity var(--dur-med);
}

.nav__hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; }
.nav__hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: rgba(248,250,252,0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--clr-border);
  padding: var(--space-lg) var(--space-xl);
  flex-direction: column;
  gap: var(--space-xs);
  z-index: 1001;
  pointer-events: none;
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  transition: transform var(--dur-med) var(--ease-out),
              opacity var(--dur-med) var(--ease-out),
              visibility var(--dur-med);
}

.nav__mobile.open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.nav__mobile .nav__link {
  display: block;
  padding: var(--space-md);
  font-size: 1rem;
  border-radius: var(--radius-md);
  transition: color var(--dur-fast), background var(--dur-fast), transform var(--dur-fast);
}

.nav__mobile .nav__link:hover {
  color: var(--clr-blue);
  background: var(--clr-blue-pale);
  transform: translateX(4px);
}

.nav__mobile .nav__link:active {
  background: rgba(37,99,235,0.15);
}

/* ── HERO ─────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow-x: clip;
  background: var(--clr-gradient-hero);
  padding-top: var(--nav-height);
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* Mesh gradient orbs */
.hero__orb {
  position: absolute;
  border-radius: var(--radius-full);
  filter: blur(80px);
  opacity: 0.35;
}

.hero__orb--1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, #DBEAFE, transparent);
  top: -100px;
  right: -100px;
  animation: float 8s ease-in-out infinite;
}

.hero__orb--2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, #EDE9FE, transparent);
  bottom: -80px;
  left: -80px;
  animation: float 10s ease-in-out infinite reverse;
}

.hero__orb--3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, #BFDBFE, transparent);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: float 12s ease-in-out infinite;
}

/* Grid pattern */
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(37,99,235,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.04) 1px, transparent 1px);
  background-size: 50px 50px;
}

/* ── HERO LAYOUT (two-column) ─────────────────────────────── */
.hero__layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: var(--space-4xl);
  padding: var(--space-3xl) 0;
}

.hero__content {
  max-width: 680px;
}

/* ── HERO TEXT ────────────────────────────────────────────── */
.hero__name {
  font-size: clamp(2.75rem, 7vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: var(--space-lg);
}

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

.hero__title-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  min-height: 2.5rem;
}

.hero__typing {
  font-family: var(--font-head);
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 600;
  color: var(--clr-blue);
}

.hero__cursor {
  display: inline-block;
  width: 3px;
  height: 1.4em;
  background: var(--clr-purple);
  border-radius: 2px;
  animation: blink 1s step-end infinite;
  vertical-align: text-bottom;
}

/* Availability badge below title */
.hero__availability {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: rgba(34,197,94,0.09);
  border: 1px solid rgba(34,197,94,0.28);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  color: #15803D;
  margin-bottom: var(--space-xl);
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: #22C55E;
  animation: pulse-dot 2s ease-in-out infinite;
  flex-shrink: 0;
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.1rem);
  color: var(--clr-text-3);
  max-width: 560px;
  margin-bottom: var(--space-xl);
  line-height: 1.75;
}

/* Social links row in hero */
.hero__social {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-4xl);
}

.hero__stats {
  display: flex;
  gap: var(--space-2xl);
  flex-wrap: wrap;
}

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

.hero__stat-value {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: var(--clr-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.hero__stat-label {
  font-size: 0.8125rem;
  color: var(--clr-text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ── PROFILE PIC ─────────────────────────────────────────── */
.hero__pic-wrap {
  position: relative;
  flex-shrink: 0;
  align-self: center;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__pic {
  width: 440px;
  height: 560px;
  border-radius: var(--radius-2xl);
  object-fit: cover;
  object-position: center top;
  position: relative;
  z-index: 2;
  display: block;
  box-shadow:
    var(--shadow-xl),
    0 12px 48px -8px rgba(37,99,235,0.18);
  animation: float-pic 7s ease-in-out infinite;
}

/* ── SOCIAL LINKS (hero row style) ───────────────────────── */
.social-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--clr-border);
  background: rgba(255,255,255,0.7);
  color: var(--clr-text-2);
  font-size: 0.8125rem;
  font-weight: 600;
  transition: all var(--dur-fast);
  backdrop-filter: blur(8px);
}

.social-link:hover {
  border-color: var(--clr-blue);
  color: var(--clr-blue);
  background: var(--clr-blue-pale);
  transform: translateY(-2px);
  box-shadow: var(--shadow-blue);
}

.social-link svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ── BUTTONS ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  transition: all var(--dur-med) var(--ease-out);
  white-space: nowrap;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1rem;
}

.btn-primary {
  background: var(--clr-gradient);
  color: #fff;
  box-shadow: var(--shadow-blue);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 40px -4px rgba(37,99,235,0.35);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--clr-surface);
  color: var(--clr-text);
  border: 1.5px solid var(--clr-border);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  border-color: var(--clr-blue);
  color: var(--clr-blue);
  box-shadow: var(--shadow-blue);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--clr-blue);
  border: 1.5px solid var(--clr-blue);
}

.btn-outline:hover {
  background: var(--clr-blue);
  color: #fff;
  box-shadow: var(--shadow-blue);
}

.btn-icon {
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}

/* ── ABOUT ───────────────────────────────────────────────── */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: start;
}

/* Availability badge in about */
.about__intro-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 5px 14px;
  background: rgba(34,197,94,0.08);
  border: 1px solid rgba(34,197,94,0.28);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: #15803D;
  margin-bottom: var(--space-lg);
}

.about__intro-badge-dot {
  width: 7px;
  height: 7px;
  border-radius: var(--radius-full);
  background: #22C55E;
  animation: pulse-dot 2s ease-in-out infinite;
  flex-shrink: 0;
}

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

.about__text h3 {
  color: var(--clr-text);
  margin-bottom: var(--space-md);
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.about__lead {
  font-size: 1.0625rem;
  color: var(--clr-text-2);
  margin-bottom: var(--space-md);
  line-height: 1.8;
  font-weight: 500;
}

.about__text p {
  color: var(--clr-text-3);
  margin-bottom: var(--space-md);
  line-height: 1.8;
  font-size: 0.9375rem;
}

.about__meta-row {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-top: var(--space-xl);
  margin-bottom: var(--space-lg);
}

.about__meta-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--clr-bg-alt);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--clr-text-2);
}

.about__meta-chip svg {
  width: 14px;
  height: 14px;
  color: var(--clr-blue);
}

.about__cta-row {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-top: var(--space-md);
}

/* Highlight cards — horizontal layout with icon left */
.about__highlights {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.about__highlight-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--space-lg) var(--space-xl);
  transition: all var(--dur-med) var(--ease-out);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
}

.about__highlight-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 4px;
  background: var(--clr-gradient);
  opacity: 0;
  transition: opacity var(--dur-med);
}

.about__highlight-card:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(37,99,235,0.15);
}

.about__highlight-card:hover::before {
  opacity: 1;
}

.about__card-icon-wrap {
  flex-shrink: 0;
}

.about__card-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background: var(--clr-gradient-soft);
  border: 1px solid var(--clr-border);
  display: flex;
  align-items: center;
  justify-content: center;
}

.about__card-icon svg {
  width: 20px;
  height: 20px;
  color: var(--clr-blue);
}

.about__card-body {
  flex: 1;
  min-width: 0;
}

.about__highlight-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-text);
  margin-bottom: 4px;
}

.about__highlight-card p {
  font-size: 0.8125rem;
  color: var(--clr-text-3);
  line-height: 1.55;
  margin-bottom: 0;
}

/* ── SKILLS ──────────────────────────────────────────────── */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.skill-card {
  background: var(--clr-surface);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  transition: all var(--dur-med) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.skill-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--cat-color, var(--clr-blue));
  opacity: 0;
  transition: opacity var(--dur-med);
}

.skill-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
  border-color: var(--cat-color, var(--clr-blue));
  border-color: color-mix(in srgb, var(--cat-color, var(--clr-blue)) 30%, transparent);
}

.skill-card:hover::before {
  opacity: 1;
}

.skill-card__header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.skill-card__icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.skill-card__icon-wrap svg {
  width: 22px;
  height: 22px;
}

.skill-card__title-group {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}

.skill-card__title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--clr-text);
}

.skill-card__pct {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
}

/* Master proficiency bar */
.skill-card__master-bar {
  height: 6px;
  background: var(--cat-bg, rgba(37,99,235,0.08));
  border-radius: var(--radius-full);
  margin-bottom: var(--space-lg);
  overflow: hidden;
}

.skill-card__master-fill {
  height: 100%;
  width: 0;
  border-radius: var(--radius-full);
  background: var(--bar-color, var(--clr-blue));
  transition: width 1.2s cubic-bezier(0.25,1,0.5,1);
}

/* Individual skill rows */
.skill-items {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.skill-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.skill-item__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.skill-item__name {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--clr-text-2);
}

.skill-bar {
  height: 4px;
  background: var(--clr-bg-alt);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.skill-bar__fill {
  height: 100%;
  width: 0;
  border-radius: var(--radius-full);
  background: var(--bar-color, var(--clr-blue));
  opacity: 0.7;
  transition: width 1s cubic-bezier(0.25,1,0.5,1);
}

.skill-tag {
  display: inline-block;
  padding: 3px 10px;
  background: var(--clr-bg-alt);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--clr-text-2);
  transition: all var(--dur-fast);
}

/* ── EXPERIENCE TIMELINE ─────────────────────────────────── */
.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 36px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--clr-blue), var(--clr-purple), transparent);
  border-radius: var(--radius-full);
}

.timeline-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-3xl);
  position: relative;
}

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

.timeline-dot {
  width: 72px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.timeline-dot__circle {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--clr-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-blue);
  position: relative;
  z-index: 1;
}

.timeline-dot__circle svg {
  width: 22px;
  height: 22px;
  color: #fff;
}

.timeline-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  transition: all var(--dur-med) var(--ease-out);
}

.timeline-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: rgba(37,99,235,0.2);
  transform: translateX(4px);
}

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

.timeline-card__role {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--clr-text);
}

.timeline-card__company {
  font-size: 1rem;
  font-weight: 600;
  color: var(--clr-blue);
  margin-top: 2px;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.exp-type-badge {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 2px 8px;
  background: var(--clr-purple-pale);
  color: var(--clr-purple);
  border-radius: var(--radius-full);
}

.timeline-card__meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-xs);
}

.timeline-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 4px 12px;
  background: var(--clr-gradient-soft);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--clr-purple);
}

.timeline-card__location {
  font-size: 0.8125rem;
  color: var(--clr-text-muted);
}

.timeline-highlights {
  margin: var(--space-lg) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.timeline-highlight {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  font-size: 0.9375rem;
  color: var(--clr-text-2);
  line-height: 1.6;
}

.timeline-highlight::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--clr-gradient);
  flex-shrink: 0;
  margin-top: 8px;
}

.timeline-tech {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--clr-border);
}

/* ── PROJECTS ────────────────────────────────────────────── */
/* Unified 2-column grid for all 4 projects */
.projects__all-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.project-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  transition: all var(--dur-med) var(--ease-out);
  position: relative;
  overflow: hidden;
}

/* Coloured top accent bar */
.project-card__top-bar {
  height: 4px;
  background: var(--clr-gradient);
  width: 100%;
  flex-shrink: 0;
}

/* Inner padding wrapper for content below top-bar */
.project-card__header,
.project-card__desc,
.project-card__highlights,
.project-card__metrics,
.project-card__tags,
.project-card__actions {
  padding-left: var(--space-2xl);
  padding-right: var(--space-2xl);
}

.project-card__header {
  padding-top: var(--space-xl);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: var(--space-md);
}

.project-card__name-wrap {
  flex: 1;
}

.project-card__name {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--clr-text);
}

.project-card__subtitle {
  font-size: 0.875rem;
  color: var(--clr-text-3);
  margin-top: 2px;
}

.project-card__period {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--clr-text-muted);
  flex-shrink: 0;
}

.project-card__desc {
  font-size: 0.9375rem;
  color: var(--clr-text-2);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.project-card__highlights {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.project-highlight {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: var(--clr-text-2);
  line-height: 1.5;
}

.project-highlight::before {
  content: '→';
  color: var(--clr-blue);
  font-size: 0.75rem;
  flex-shrink: 0;
  margin-top: 2px;
}

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

.project-metric {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  background: var(--clr-blue-pale);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--clr-blue);
}

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  padding-top: var(--space-md);
  border-top: 1px solid var(--clr-border);
  margin-top: auto;
  padding-bottom: var(--space-xl);
}

.project-card__actions {
  display: flex;
  gap: var(--space-sm);
  padding-bottom: var(--space-xl);
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--clr-text-2);
  transition: all var(--dur-fast);
}

.project-link:hover {
  border-color: var(--clr-blue);
  color: var(--clr-blue);
  background: var(--clr-blue-pale);
}

.project-link svg {
  width: 14px;
  height: 14px;
}

/* ── AI SECTION ──────────────────────────────────────────── */
.ai-section {
  background: linear-gradient(135deg, #0F172A 0%, #1E1B4B 50%, #0F172A 100%);
  position: relative;
  overflow: hidden;
}

.ai-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(37,99,235,0.2) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(124,58,237,0.2) 0%, transparent 50%);
}

.ai-section .section-label {
  background: rgba(37,99,235,0.2);
  color: #93C5FD;
}

.ai-section .section-title {
  color: #F8FAFC;
}

.ai-section .section-subtitle {
  color: #94A3B8;
}

.ai-intro {
  max-width: 720px;
  margin: 0 auto var(--space-4xl);
  text-align: center;
  font-size: 1.0625rem;
  color: #CBD5E1;
  line-height: 1.8;
}

.ai-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  background: rgba(124,58,237,0.2);
  border: 1px solid rgba(124,58,237,0.4);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  color: #C4B5FD;
  margin-bottom: var(--space-2xl);
}

.ai-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-lg);
  position: relative;
  z-index: 1;
}

.ai-card {
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  transition: all var(--dur-med) var(--ease-out);
}

.ai-card:hover {
  background: rgba(255,255,255,0.07);
  border-color: rgba(124,58,237,0.4);
  transform: translateY(-6px);
  box-shadow: 0 20px 50px -10px rgba(0,0,0,0.5);
}

.ai-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(37,99,235,0.3), rgba(124,58,237,0.3));
  border: 1px solid rgba(124,58,237,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
}

.ai-card__icon svg {
  width: 24px;
  height: 24px;
  color: #A78BFA;
}

.ai-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: #F8FAFC;
  margin-bottom: var(--space-sm);
}

.ai-card p {
  font-size: 0.9rem;
  color: #94A3B8;
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.ai-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.ai-tag {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(124,58,237,0.15);
  border: 1px solid rgba(124,58,237,0.25);
  border-radius: var(--radius-full);
  font-size: 0.6875rem;
  font-weight: 600;
  color: #C4B5FD;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ── OPEN SOURCE ─────────────────────────────────────────── */
.opensource-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
  max-width: 900px;
  margin: 0 auto;
}

.opensource-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl) var(--space-3xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2xl);
  transition: all var(--dur-med) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.opensource-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 4px;
  background: var(--clr-gradient);
}

.opensource-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}

.opensource-card__info {
  flex: 1;
}

.opensource-card__name {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  flex-wrap: wrap;
}

.opensource-card__name h3 {
  font-family: var(--font-mono);
  font-size: 1.125rem;
  color: var(--clr-text);
}

.os-stars {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  background: rgba(234,179,8,0.1);
  border: 1px solid rgba(234,179,8,0.25);
  border-radius: var(--radius-full);
  font-size: 0.6875rem;
  font-weight: 700;
  color: #854d0e;
}

.os-stars svg { width: 12px; height: 12px; }

.os-contributions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.os-pr-tag,
.os-issue-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
}

.os-pr-tag {
  background: var(--clr-blue-pale);
  color: var(--clr-blue);
  border: 1px solid rgba(37,99,235,0.2);
}

.os-issue-tag {
  background: var(--clr-purple-pale);
  color: var(--clr-purple);
  border: 1px solid rgba(124,58,237,0.2);
}

.os-pr-tag svg,
.os-issue-tag svg {
  width: 11px;
  height: 11px;
}

.opensource-card__desc {
  color: var(--clr-text-2);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.opensource-card__actions {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  flex-shrink: 0;
}

/* ── ACHIEVEMENTS ────────────────────────────────────────── */
.achievements__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-lg);
}

.achievement-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
  transition: all var(--dur-med) var(--ease-out);
}

.achievement-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: transparent;
}

.achievement-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--clr-gradient-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.achievement-icon svg {
  width: 24px;
  height: 24px;
  color: var(--clr-purple);
}

.achievement-card__content h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--clr-text);
  margin-bottom: var(--space-sm);
  line-height: 1.3;
}

.achievement-card__content p {
  font-size: 0.875rem;
  color: var(--clr-text-3);
  line-height: 1.6;
}

.achievement-type {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-xs);
}

.achievement-type.certification {
  background: var(--clr-purple-pale);
  color: var(--clr-purple);
}

.achievement-type.achievement {
  background: var(--clr-blue-pale);
  color: var(--clr-blue);
}

/* ── ACHIEVEMENTS PREMIUM (ach-card) ────────────────────── */
.ach-section-label {
  font-family: var(--font-head);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--clr-text);
  margin-bottom: var(--space-xl);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}
.ach-section-label--cert { margin-top: var(--space-4xl); }
.ach-grid { display: grid; gap: var(--space-lg); }
.ach-grid--achievements { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.ach-grid--certs { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }

.ach-card {
  position: relative;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  overflow: hidden;
  transition: all var(--dur-med) var(--ease-out);
}
.ach-card__glow {
  position: absolute; inset: 0;
  opacity: 0; transition: opacity var(--dur-med);
  z-index: 0; filter: blur(40px); transform: scale(1.5);
}
.ach-card:hover .ach-card__glow { opacity: 0.08; }
.ach-card__shine {
  position: absolute; top: -50%; left: -75%;
  width: 50%; height: 200%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s ease; pointer-events: none; z-index: 3;
}
.ach-card:hover .ach-card__shine { left: 150%; }
.ach-card__icon-wrap {
  width: 56px; height: 56px;
  border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-lg);
  position: relative; z-index: 1;
  box-shadow: 0 4px 16px -2px rgba(0,0,0,0.15);
}
.ach-card__icon-wrap svg { width: 26px; height: 26px; color: #fff; }
.ach-card__body { position: relative; z-index: 1; }
.ach-card__type {
  display: inline-block; font-size: 0.6875rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.1em;
  margin-bottom: var(--space-sm); padding: 2px 0;
}
.ach-card__type.achievement { color: var(--clr-blue); }
.ach-card__type.certification { color: var(--clr-purple); }
.ach-card__title {
  font-size: 1rem; font-weight: 700; color: var(--clr-text);
  margin-bottom: var(--space-sm); line-height: 1.35;
}
.ach-card__desc { font-size: 0.875rem; color: var(--clr-text-3); line-height: 1.65; }
.ach-card--win:hover {
  border-color: rgba(37,99,235,0.3);
  box-shadow: 0 12px 40px -8px rgba(37,99,235,0.15), var(--shadow-lg);
  transform: translateY(-6px);
}
.ach-card--cert:hover {
  border-color: rgba(124,58,237,0.3);
  box-shadow: 0 12px 40px -8px rgba(124,58,237,0.15), var(--shadow-lg);
  transform: translateY(-6px);
}

/* ── CERT CARDS (visual image preview) ───────────────────── */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-xl);
}

.cert-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--dur-med) var(--ease-out);
}

.cert-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px -8px rgba(37,99,235,0.12), var(--shadow-lg);
  border-color: rgba(37,99,235,0.25);
}

/* Preview image area */
.cert-card__preview-link {
  display: block;
  text-decoration: none;
  flex-shrink: 0;
}

.cert-card__img-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #f8fafc;
}

.cert-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top left;
  transition: transform 0.5s var(--ease-out);
  display: block;
}

.cert-card:hover .cert-card__img {
  transform: scale(1.04);
}

.cert-card__img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 60%, rgba(0,0,0,0.06) 100%);
  pointer-events: none;
}

/* PDF placeholder */
.cert-card__pdf-preview {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #f0f4ff 0%, #e8f0fe 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  transition: background var(--dur-med);
}

.cert-card:hover .cert-card__pdf-preview {
  background: linear-gradient(135deg, #dbeafe 0%, #ede9fe 100%);
}

.cert-card__pdf-icon {
  width: 52px;
  height: 52px;
  background: rgba(37,99,235,0.1);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-blue);
}

.cert-card__pdf-icon svg {
  width: 26px;
  height: 26px;
}

.cert-card__pdf-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--clr-blue);
}

/* Card body */
.cert-card__body {
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  flex: 1;
}

.cert-card__issuer-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.cert-card__issuer-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  filter: drop-shadow(0 1px 2px rgba(0,0,0,0.12));
}

.cert-card__issuer-logo svg,
.cert-card__issuer-logo img {
  width: 18px;
  height: 18px;
  border-radius: 3px;
  object-fit: contain;
}

.cert-card__issuer {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--clr-text-muted);
}

.cert-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-text);
  line-height: 1.35;
  margin: 0;
}

.cert-card__desc {
  font-size: 0.8125rem;
  color: var(--clr-text-3);
  line-height: 1.6;
  flex: 1;
}

.cert-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-sm) var(--space-md);
  margin-top: var(--space-xs);
}

.cert-meta__date,
.cert-meta__hours,
.cert-meta__valid {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--clr-text-muted);
  background: var(--clr-bg-2, rgba(37,99,235,0.05));
  padding: 3px 10px;
  border-radius: var(--radius-full);
  border: 1px solid var(--clr-border);
}

.cert-meta__date svg,
.cert-meta__hours svg {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
}

.cert-meta__valid {
  color: #059669;
  background: rgba(5,150,105,0.06);
  border-color: rgba(5,150,105,0.2);
}

.cert-card__btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: var(--space-sm);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--clr-blue);
  color: var(--clr-blue);
  font-size: 0.8125rem;
  font-weight: 700;
  text-decoration: none;
  transition: all var(--dur-fast) var(--ease-out);
  align-self: flex-start;
}

.cert-card__btn svg {
  width: 14px;
  height: 14px;
}

.cert-card__btn:hover {
  background: var(--clr-blue);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px -2px rgba(37,99,235,0.3);
}


/* ── EDUCATION ───────────────────────────────────────────── */
.education-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl) var(--space-3xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2xl);
  max-width: 900px;
  margin: 0 auto;
  transition: all var(--dur-med) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.education-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--clr-gradient);
}

.education-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.education-card__left {
  flex: 1;
}

.education-card__degree {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--clr-text);
  margin-bottom: var(--space-xs);
}

.education-card__inst {
  font-size: 1rem;
  font-weight: 500;
  color: var(--clr-blue);
  margin-bottom: var(--space-md);
}

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

.education-highlight {
  font-size: 0.875rem;
  color: var(--clr-text-3);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.education-highlight::before {
  content: '•';
  color: var(--clr-blue);
}

.education-card__right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-md);
}

.education-period {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--clr-text-muted);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.education-gpa {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--clr-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.education-gpa-label {
  font-size: 0.75rem;
  color: var(--clr-text-muted);
  text-align: right;
}

/* ── CONTACT / LETS CONNECT ──────────────────────────────── */
.contact-section {
  background: var(--clr-gradient-hero);
  position: relative;
  overflow: hidden;
}

.contact-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 10% 20%, rgba(37,99,235,0.06) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(124,58,237,0.06) 0%, transparent 40%);
  pointer-events: none;
}

/* Connect cards grid */
.connect-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-lg);
  max-width: 1100px;
  margin: 0 auto var(--space-3xl);
}

.connect-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-xl);
  background: var(--clr-surface);
  border: 1.5px solid var(--card-border, var(--clr-border));
  border-radius: var(--radius-xl);
  cursor: pointer;
  text-decoration: none;
  color: var(--clr-text);
  transition: all var(--dur-med) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.connect-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--card-bg, rgba(37,99,235,0.04));
  opacity: 0;
  transition: opacity var(--dur-med);
}

.connect-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px -8px rgba(0,0,0,0.12);
  border-color: var(--card-color, var(--clr-blue));
}

.connect-card:hover::before {
  opacity: 1;
}

.connect-card:hover .connect-card__arrow {
  transform: translateX(4px);
  opacity: 1;
}

.connect-card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid var(--card-border, var(--clr-border));
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  transition: transform var(--dur-med) var(--ease-spring);
}

.connect-card:hover .connect-card__icon {
  transform: scale(1.1);
}

.connect-card__icon svg {
  width: 22px;
  height: 22px;
}

.connect-card__info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
  min-width: 0;
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.connect-card__label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--clr-text-muted);
}

.connect-card__value {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--clr-text);
  white-space: normal;
  overflow-wrap: break-word;
  word-break: break-all;
  min-width: 0;
  max-width: 100%;
  display: block;
  line-height: 1.45;
}

.connect-card__arrow {
  color: var(--card-color, var(--clr-blue));
  opacity: 0;
  transition: all var(--dur-med) var(--ease-out);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.connect-card__arrow svg {
  width: 18px;
  height: 18px;
}

/* CTA below connect grid */
.contact-cta {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  padding-top: var(--space-md);
}

/* ── FOOTER ──────────────────────────────────────────────── */
.footer {
  background: #0F172A;
  color: #94A3B8;
}

.footer__top {
  padding: var(--space-4xl) 0 var(--space-3xl);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: var(--space-4xl);
  align-items: flex-start;
}

.footer__logo {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, #60A5FA, #A78BFA);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-sm);
}

.footer__tagline {
  font-size: 0.8125rem;
  color: #60A5FA;
  font-weight: 500;
  margin-bottom: var(--space-md);
  font-family: var(--font-mono);
}

.footer__desc {
  font-size: 0.9rem;
  color: #64748B;
  line-height: 1.7;
  margin-bottom: var(--space-xl);
}

.footer__socials {
  display: flex;
  gap: var(--space-sm);
}

.footer__social {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #64748B;
  transition: all var(--dur-fast);
}

.footer__social:hover {
  border-color: #60A5FA;
  color: #60A5FA;
  background: rgba(96,165,250,0.1);
  transform: translateY(-2px);
}

.footer__social svg {
  width: 17px;
  height: 17px;
}

.footer__col-title {
  font-family: var(--font-head);
  font-size: 0.875rem;
  font-weight: 700;
  color: #F1F5F9;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-lg);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__link {
  font-size: 0.875rem;
  color: #64748B;
  transition: color var(--dur-fast);
  padding: 2px 0;
}

.footer__link:hover {
  color: #60A5FA;
}

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

.footer__contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: #64748B;
  transition: color var(--dur-fast);
  word-break: break-all;
}

.footer__contact-item:hover {
  color: #60A5FA;
}

.footer__contact-item svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: #3B82F6;
}

.footer__bottom {
  padding: var(--space-xl) 0;
}

.footer__bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer__note {
  font-size: 0.875rem;
  color: #475569;
}

.footer__copy {
  font-size: 0.875rem;
  color: #334155;
}

/* ── BACK TO TOP ─────────────────────────────────────────── */
.back-to-top {
  position: fixed;
  bottom: var(--space-2xl);
  right: var(--space-2xl);
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  background: var(--clr-gradient);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-blue), var(--shadow-lg);
  z-index: 900;
  cursor: pointer;
  border: none;
  opacity: 0;
  transform: translateY(20px) scale(0.8);
  transition: opacity var(--dur-med) var(--ease-out),
              transform var(--dur-med) var(--ease-spring),
              box-shadow var(--dur-fast);
  pointer-events: none;
}

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

.back-to-top:hover {
  transform: translateY(-4px) scale(1.08);
  box-shadow: 0 16px 40px -4px rgba(37,99,235,0.45), var(--shadow-xl);
}

.back-to-top svg {
  width: 22px;
  height: 22px;
}

/* ── SCROLL REVEAL ───────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--dur-slow) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity var(--dur-slow) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity var(--dur-slow) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Stagger delays */
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ── KEYFRAMES ───────────────────────────────────────────── */
@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  33%       { transform: translateY(-20px) rotate(2deg); }
  66%       { transform: translateY(10px) rotate(-2deg); }
}

@keyframes float-pic {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-12px); }
}

@keyframes ring-pulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.6; }
  50%       { transform: translate(-50%, -50%) scale(1.04); opacity: 0.2; }
}

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

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
  50%       { box-shadow: 0 0 0 6px rgba(34, 197, 94, 0); }
}

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

/* ── SCROLLBAR ───────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--clr-bg); }
::-webkit-scrollbar-thumb { background: var(--clr-border-soft); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--clr-text-muted); }

/* ── SECTION DIVIDERS ────────────────────────────────────── */
.divider {
  width: 60px;
  height: 4px;
  background: var(--clr-gradient);
  border-radius: var(--radius-full);
  margin: 0 auto var(--space-md);
}

/* ── "OTHER PROJECTS" LABEL ──────────────────────────────── */
.projects__other-label {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--clr-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.projects__other-label::before,
.projects__other-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--clr-border);
}

/* ── AVAILABILITY CHIP ───────────────────────────────────── */
.availability-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  background: rgba(34,197,94,0.08);
  border: 1px solid rgba(34,197,94,0.25);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  color: #15803D;
}

.availability-dot {
  width: 7px;
  height: 7px;
  border-radius: var(--radius-full);
  background: #22C55E;
  animation: pulse-dot 2s ease-in-out infinite;
}

/* ── ICON UTILITY ────────────────────────────────────────── */
.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: middle;
}

.icon svg {
  width: 1em;
  height: 1em;
}

/* ── RESPONSIVE: TABLET (≤1024px) ────────────────────────── */
@media (max-width: 1024px) {
  .hero__layout {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-3xl);
  }

  .hero__content {
    max-width: 100%;
  }

  .hero__pic-wrap {
    order: -1;
    align-self: auto;
    justify-content: center;
  }

  .hero__pic {
    width: 300px;
    height: 380px;
  }

  .hero__availability,
  .hero__social,
  .hero__actions,
  .hero__stats {
    justify-content: center;
  }

  .hero__subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
  }

  .about__highlights {
    display: flex;
    flex-direction: column;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
  }

  .footer__brand {
    grid-column: 1 / -1;
  }
}

/* ── RESPONSIVE: MOBILE (≤768px) ─────────────────────────── */
@media (max-width: 768px) {
  :root {
    --space-5xl: 4rem;
    --space-4xl: 3rem;
    --space-3xl: 2.5rem;
  }

  .nav__links,
  .nav__cta {
    display: none;
  }

  .nav__hamburger {
    display: flex;
  }

  .nav__mobile {
    display: flex;
  }


  /* Contain hero orbs to viewport width */
  .hero__orb {
    max-width: 80vw;
  }

  .hero__stats {
    gap: var(--space-xl);
  }

  .hero__actions {
    flex-direction: column;
    align-items: center;
  }

  .hero__social {
    justify-content: center;
  }

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

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

  .timeline {
    overflow: hidden;
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-item {
    grid-template-columns: 44px 1fr;
    min-width: 0;
  }

  .timeline-dot {
    width: 44px;
  }

  .timeline-dot__circle {
    width: 40px;
    height: 40px;
  }

  .timeline-card {
    min-width: 0;
    max-width: 100%;
    overflow: hidden;
  }

  .timeline-card:hover {
    transform: none;
  }

  .timeline-card__header {
    flex-direction: column;
  }

  .timeline-card__meta {
    align-items: flex-start;
  }

  .projects__featured,
  .projects__other,
  .projects__all-grid {
    grid-template-columns: 1fr;
  }

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

  .opensource-card {
    flex-direction: column;
    padding: var(--space-xl);
    align-items: flex-start;
  }

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

  .education-card {
    flex-direction: column;
    padding: var(--space-xl);
    align-items: flex-start;
  }

  .education-card__right {
    align-items: flex-start;
  }

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

  .contact-cta {
    flex-direction: column;
    align-items: center;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .footer__bottom .container {
    flex-direction: column;
    text-align: center;
  }

  .back-to-top {
    bottom: var(--space-lg);
    right: var(--space-lg);
    width: 46px;
    height: 46px;
  }

  /* Prevent sections from overflowing horizontally without blocking vertical scroll */
  .section {
    overflow-x: clip;
  }
}

/* ── RESPONSIVE: SMALL MOBILE (≤480px) ───────────────────── */
@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-md);
  }

  .hero__pic {
    width: 220px;
    height: 280px;
  }

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

  .hero__stat-value {
    font-size: 1.5rem;
  }

  .hero__stats {
    gap: var(--space-lg);
  }

  /* Keep social icon visible but hide text label only if needed */
  .social-link {
    padding: 8px 10px;
    font-size: 0.75rem;
  }

  .connect-card__value {
    font-size: 0.8125rem;
  }

  /* Prevent timeline from overflowing */
  .timeline-item {
    gap: var(--space-md);
  }

  .timeline-card {
    padding: var(--space-lg);
  }

  .timeline-card__role {
    font-size: 1rem;
  }

  /* Fix back-to-top and hamburger position */
  .back-to-top {
    right: var(--space-md);
    bottom: var(--space-md);
  }
}

/* ── PRINT ────────────────────────────────────────────────── */
@media print {
  .nav, .hero__actions, .hero__social, .back-to-top, .footer { display: none; }
  .section { padding: 2rem 0; }
}