/* ============================================
   AYUSH RANJAN — PORTFOLIO v2
   Fluid · Cinematic · Water-flow UI
   ============================================ */


/* ─────────────────────────────────
   DESIGN TOKENS
───────────────────────────────── */
:root {
  /* ── Colours ── */
  --bg:           #05050e;
  --surface:      #0b0b16;
  --card:         #0f0f1e;
  --card-hover:   #14142c;
  --border:       #1a1a30;
  --border-b:     #2a2a48;
  --border-bright:#2e2e50;
  /* aliases used by research.html */
  --text-bright:  #eef0f8;
  --text-dim:     #4a4f6a;
  --transition:   0.3s cubic-bezier(.4,0,.2,1);
  --accent:       #7c75f5;
  --accent-light: #9d98f7;
  --accent-dim:   rgba(124,117,245,.14);
  --accent-glow:  rgba(124,117,245,.28);
  --green:        #3bdc8f;
  --green-dim:    rgba(59,220,143,.12);
  --cyan:         #26d4e8;
  --cyan-dim:     rgba(38,212,232,.12);
  --amber:        #f59e0b;
  --red:          #ef4444;
  --text:         #a8aec8;
  --text-muted:   #5a5f7a;
  --text-b:       #eef0f8;
  --text-d:       #4a4f6a;
  --heading:      #f4f5fc;
  /* ── Glass surface ── */
  --glass:        rgba(255,255,255,0.025);
  /* ── Typography ── */
  --font-mono:    'JetBrains Mono', monospace;
  --font-sans:    'Inter', sans-serif;
  --font-display: 'Syne', sans-serif;
  --mono:         'JetBrains Mono', monospace;
  --sans:         'Inter', sans-serif;
  --display:      'Syne', sans-serif;
  /* ── Radii ── */
  --radius:       12px;
  --radius-lg:    20px;
  /* ── Spacing ── */
  --space-lg:     2rem;
  --space-xl:     4rem;
  --space-xxl:    7rem;
  /* ── Transitions ── */
  --tr:           0.3s cubic-bezier(.4,0,.2,1);
  --sp:           0;   /* scroll progress 0→1 set by JS */
}

/* ─────────────────────────────────
   RESET
───────────────────────────────── */
*,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior: smooth; font-size:16px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-weight: 400;
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Dynamic body glow shifts as you scroll */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 10%, rgba(124,117,245,.04) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 80%, rgba(38,212,232,.03) 0%, transparent 55%);
  pointer-events: none;
  z-index: 0;
  animation: bgPulse 8s ease-in-out infinite alternate;
}

@keyframes bgPulse {
  0%   { opacity:.6; }
  100% { opacity:1; }
}

::selection { background: var(--accent-dim); color: var(--accent); }
::-webkit-scrollbar { width:3px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-b); border-radius:2px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ─────────────────────────────────
   TYPOGRAPHY
───────────────────────────────── */
h1,h2,h3,h4 {
  font-family: var(--display);
  color: var(--heading);
  line-height: 1.18;
  letter-spacing: -.025em;
}
h1 { font-size: clamp(2.6rem,6vw,5.5rem); font-weight:800; }
h2 { font-size: clamp(1.7rem,3.5vw,2.8rem); font-weight:700; }
h3 { font-size: clamp(1.1rem,2vw,1.55rem); font-weight:600; }
h4 { font-size:.88rem; font-weight:600; letter-spacing:.07em; text-transform:uppercase; }
p  { line-height:1.78; }
a  { color:var(--accent); text-decoration:none; transition:color var(--tr); }
a:hover { color:#a09af8; }
code,.mono { font-family:var(--mono); font-size:.84em; color:var(--green); }

/* ─────────────────────────────────
   LAYOUT
───────────────────────────────── */
.container { max-width:1180px; margin:0 auto; padding:0 2rem; }
.section { padding:7rem 0; position:relative; }

.section-label {
  font-family:var(--mono);
  font-size:.75rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--accent);
  margin-bottom:.9rem;
  display:flex; align-items:center; gap:.7rem;
}
.section-label::before {
  content:'';
  display:inline-block;
  width:22px; height:1px;
  background:var(--accent);
}

/* ─────────────────────────────────
   FLOATING BLOBS (background decoration)
───────────────────────────────── */
/* .float-orb is used as the base class in HTML; .blob-N sets position+colour */
.float-orb, .blob {
  position:fixed;
  border-radius:50%;
  filter: blur(55px);       /* was 90px — cut GPU cost */
  pointer-events:none;
  z-index:0;
  will-change:transform;    /* compositor layer — no repaint on move */
  animation: blobFloat 14s ease-in-out infinite alternate;
}
.blob-1 { width:420px;height:420px; background:rgba(124,117,245,.06);  top:-100px;right:-100px; animation-delay:0s; }
.blob-2 { width:300px;height:300px; background:rgba(38,212,232,.045);  bottom:-60px;left:-60px; animation-delay:-5s; }
.blob-3 { width:240px;height:240px; background:rgba(59,220,143,.038);  top:42%;right:2%;        animation-delay:-9s; }

@keyframes blobFloat {
  0%   { transform:translate(0,0) scale(1); }
  33%  { transform:translate(20px,-30px) scale(1.05); }
  66%  { transform:translate(-15px,20px) scale(.95); }
  100% { transform:translate(10px,-10px) scale(1.02); }
}

/* ─────────────────────────────────
   CURSOR
───────────────────────────────── */
.cursor-glow {
  width:200px; height:200px;      /* was 320px */
  background:radial-gradient(circle, rgba(124,117,245,.06) 0%, transparent 70%);
  border-radius:50%;
  position:fixed; pointer-events:none;
  transform:translate(-50%,-50%);
  z-index:1;
  will-change:left,top;
  transition:opacity .3s;
}

/* ─────────────────────────────────
   NAVBAR
───────────────────────────────── */
.nav {
  position:fixed; top:0; left:0; right:0;
  z-index:1000;
  padding:1.1rem var(--space-lg);
  display:flex; align-items:center; justify-content:space-between;
  transition:all .45s ease;
}
.nav.scrolled {
  background:rgba(5,5,14,.88);
  backdrop-filter:blur(24px);
  -webkit-backdrop-filter:blur(24px);
  border-bottom:1px solid var(--border);
  padding:.75rem var(--space-lg);
}
.nav-inner {
  display:flex; align-items:center; justify-content:space-between;
  width:100%;
}
.nav-logo {
  font-family:var(--font-mono); font-size:.88rem;
  color:var(--text-b); font-weight:500;
  letter-spacing:-.01em; text-decoration:none;
}
.nav-logo span, .logo-ar { color:var(--accent); }
.logo-ar {
  font-family:var(--font-display); font-weight:800;
  font-size:1.1rem; color:var(--accent); letter-spacing:-.02em;
}
.nav-right {
  display:flex; align-items:center; gap:1rem;
}
/* hide .nav-right btn on small screens, show hamburger instead */

.nav-links {
  display:flex; align-items:center; gap:2.5rem; list-style:none;
}
.nav-links a {
  font-size:.84rem; font-weight:500;
  color:var(--text); letter-spacing:.02em;
  position:relative; padding-bottom:2px;
  transition:color var(--tr);
}
.nav-links a::after {
  content:''; position:absolute;
  bottom:-2px; left:0;
  width:0; height:1px;
  background:var(--accent);
  transition:width var(--tr);
}
.nav-links a:hover,
.nav-links a.active { color:var(--text-b); }
.nav-links a:hover::after,
.nav-links a.active::after { width:100%; }

.nav-cta {
  font-family:var(--mono) !important;
  font-size:.78rem !important;
  padding:.48rem 1.1rem !important;
  border:1px solid var(--border-b) !important;
  border-radius:4px;
  color:var(--accent) !important;
  transition:all var(--tr) !important;
}
.nav-cta:hover {
  background:var(--accent-dim);
  border-color:var(--accent) !important;
}
.nav-cta::after { display:none !important; }

.nav-hamburger {
  display:none; flex-direction:column; gap:5px;
  cursor:pointer; padding:4px;
  background:none; border:none;
}
.nav-hamburger span {
  display:block; width:22px; height:1.5px;
  background:var(--text); transition:all .3s;
}
.nav-hamburger.open span:nth-child(1) { transform:rotate(45deg) translate(4px,4px); }
.nav-hamburger.open span:nth-child(2) { opacity:0; }
.nav-hamburger.open span:nth-child(3) { transform:rotate(-45deg) translate(4px,-4px); }

/* ─────────────────────────────────
   HERO
───────────────────────────────── */
.hero {
  position:relative;
  min-height:100vh;
  display:flex; align-items:center;
  overflow:hidden;
}
#neural-canvas {
  position:absolute; inset:0; z-index:0;
}
.hero-noise {
  position:absolute; inset:0; z-index:1; pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.02'/%3E%3C/svg%3E");
  background-size:200px; opacity:.6;
}
.hero-content {
  position:relative; z-index:2;
  padding-top:5rem;
  will-change:transform, opacity;
}

.hero-pre {
  font-family:var(--mono); font-size:.8rem;
  color:var(--accent); letter-spacing:.1em;
  margin-bottom:1.5rem;
  opacity:0; animation:fadeUp .8s .3s ease forwards;
  display:flex; align-items:center; gap:.5rem;
}
.hero-pre .blink { color:var(--green); animation:blink 1.1s infinite; }

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

.hero-name {
  /* Base only — per-page styles handle font-size, animation, gradient */
  line-height:1.1;
}

.hero-role {
  font-size:clamp(1rem,2.5vw,1.35rem);
  color:var(--text); font-weight:400; margin-top:.6rem;
  /* animation handled by page-level <style> — no opacity override here */
}
.hero-role strong { color:var(--text-b); font-weight:600; }

.hero-tagline {
  max-width:600px; margin-top:2rem;
  font-size:clamp(.9rem,1.4vw,1.05rem);
  color:var(--text-d);
  border-left:2px solid var(--border-b);
  padding-left:1.2rem;
  opacity:0; animation:fadeUp .8s .9s ease forwards;
  font-style:italic;
  line-height:1.9;
}
.hero-tagline em { color:var(--accent); font-style:normal; font-weight:500; }

.hero-actions {
  display:flex; gap:1rem; margin-top:2.5rem;
  flex-wrap:wrap;
  opacity:0; animation:fadeUp .8s 1.1s ease forwards;
}

.hero-stats {
  display:flex; gap:2.5rem; margin-top:4rem;
  flex-wrap:wrap;
  opacity:0; animation:fadeUp .8s 1.3s ease forwards;
}
.hero-stat .num {
  font-family:var(--display); font-size:2rem; font-weight:800;
  color:var(--heading); line-height:1;
}
.hero-stat .num span { color:var(--accent); }
.hero-stat .label {
  font-size:.76rem; color:var(--text-d); letter-spacing:.06em;
  margin-top:.3rem; text-transform:uppercase; font-family:var(--mono);
}
.hero-stat + .hero-stat {
  padding-left:2.5rem;
  border-left:1px solid var(--border);
}

.hero-scroll-hint {
  position:absolute; bottom:2.5rem; left:50%;
  transform:translateX(-50%);
  display:flex; flex-direction:column; align-items:center; gap:.5rem;
  z-index:2; opacity:0; animation:fadeIn 1s 2.2s ease forwards;
}
.hero-scroll-hint span {
  font-family:var(--mono); font-size:.68rem;
  color:var(--text-d); letter-spacing:.12em;
}
.scroll-line {
  width:1px; height:42px;
  background:linear-gradient(to bottom, var(--accent), transparent);
  animation:scrollPulse 2s infinite;
}
@keyframes scrollPulse {
  0%   { transform:scaleY(0); transform-origin:top; }
  50%  { transform:scaleY(1); transform-origin:top; }
  51%  { transform:scaleY(1); transform-origin:bottom; }
  100% { transform:scaleY(0); transform-origin:bottom; }
}

/* ─────────────────────────────────
   SECTION DIVIDERS — fluid gradient bleed
───────────────────────────────── */
.section-divider {
  width:100%; height:1px;
  background:linear-gradient(90deg, transparent, var(--border), transparent);
}
.section-flow {
  position:relative;
}
.section-flow::before {
  content:''; position:absolute;
  top:-60px; left:0; right:0; height:120px;
  background:linear-gradient(to bottom, transparent, var(--bg));
  pointer-events:none; z-index:1;
}

/* ─────────────────────────────────
   PHILOSOPHY STRIP
───────────────────────────────── */
.philosophy-strip {
  padding:5rem 0;
  background:linear-gradient(135deg, rgba(124,117,245,.05), rgba(38,212,232,.04));
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
  overflow:hidden;
  position:relative;
}
.philosophy-strip blockquote {
  font-family:var(--display);
  font-size:clamp(1.4rem,3.5vw,2.5rem);
  font-weight:700;
  color:var(--heading);
  line-height:1.3;
  max-width:820px;
  letter-spacing:-.02em;
}
.philosophy-strip blockquote em { color:var(--accent); font-style:normal; }
.philosophy-strip cite {
  display:block; margin-top:1.5rem;
  font-family:var(--mono); font-size:.78rem;
  color:var(--text-d); font-style:normal;
}

/* ─────────────────────────────────
   ABOUT
───────────────────────────────── */
.about-grid {
  display:grid; grid-template-columns:1fr 2fr; gap:5rem; align-items:start;
}
.avatar-wrap {
  display:flex; flex-direction:column; align-items:center; gap:1.5rem;
  position:sticky; top:6rem;
}

.avatar {
  width:200px; height:200px; border-radius:50%;
  background:var(--card);
  position:relative;
  overflow:hidden;
}
.avatar::before {
  content:''; position:absolute; inset:-3px;
  background:conic-gradient(from 0deg, var(--accent), var(--cyan), var(--green), var(--accent));
  border-radius:50%;
  animation:rotateBorder 6s linear infinite; z-index:-1;
}
@keyframes rotateBorder { to { transform:rotate(360deg); } }

.avatar-inner {
  width:196px; height:196px; border-radius:50%;
  background:var(--card);
  display:flex; align-items:center; justify-content:center;
  overflow:hidden; position:relative; z-index:1;
  margin:2px;
}
.avatar-svg { width:180px; height:180px; }

.status-badge {
  display:inline-flex; align-items:center; gap:.5rem;
  padding:.4rem 1rem;
  background:var(--green-dim);
  border:1px solid rgba(59,220,143,.22);
  border-radius:20px; font-size:.76rem;
  color:var(--green); font-family:var(--mono);
}
.status-dot {
  width:7px; height:7px; border-radius:50%;
  background:var(--green);
  position:relative;
}
.status-dot::after {
  content:''; position:absolute; inset:-4px; border-radius:50%;
  background:rgba(59,220,143,.4);
  animation:pulse-green 2s infinite;
  will-change:transform,opacity;
}
@keyframes pulse-green {
  0%   { transform:scale(0); opacity:.6; }
  100% { transform:scale(2.5); opacity:0; }
}

.about-text p { margin-bottom:1.1rem; }
.about-text p.highlight { color:var(--text-b); font-size:1.05rem; }

.about-quick-facts {
  margin-top:2rem;
  display:grid; grid-template-columns:1fr 1fr; gap:.7rem;
}
.quick-fact {
  display:flex; align-items:center; gap:.7rem;
  font-size:.84rem; color:var(--text);
}
.quick-fact .icon {
  width:28px; height:28px;
  background:var(--accent-dim); border-radius:6px;
  display:flex; align-items:center; justify-content:center;
  font-size:.84rem; flex-shrink:0;
}

/* ─────────────────────────────────
   SKILLS
───────────────────────────────── */
.skills-grid {
  display:grid; grid-template-columns:repeat(auto-fit,minmax(230px,1fr)); gap:1.25rem;
}
.skill-card {
  background:var(--card); border:1px solid var(--border);
  border-radius:14px; padding:1.75rem;
  transition:all var(--tr); position:relative; overflow:hidden;
}
.skill-card::before {
  content:''; position:absolute;
  top:0; left:0; right:0; height:2px;
  background:linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity:0; transition:opacity var(--tr);
}
.skill-card:hover {
  border-color:var(--border-b);
  transform:translateY(-5px);
  box-shadow:0 24px 48px rgba(0,0,0,.4);
}
.skill-card:hover::before { opacity:1; }
.skill-card-icon { font-size:1.4rem; margin-bottom:1rem; }
.skill-card h4 { font-size:.72rem; color:var(--accent); letter-spacing:.14em; margin-bottom:1rem; }
.skill-tags { display:flex; flex-wrap:wrap; gap:.45rem; }
.skill-tag {
  font-family:var(--mono); font-size:.7rem;
  padding:.28rem .62rem;
  background:var(--surface); border:1px solid var(--border);
  border-radius:4px; color:var(--text);
  transition:all var(--tr);
}
.skill-card:hover .skill-tag { border-color:var(--border-b); color:var(--text-b); }

/* ─────────────────────────────────
   HORIZONTAL SCROLL PROJECT RAIL
───────────────────────────────── */
.h-scroll-container {
  position:relative; overflow:hidden; padding:2rem 0 3rem;
}
.h-scroll-track {
  display:flex; gap:1.5rem;
  overflow-x:auto; overflow-y:visible;
  scroll-behavior:smooth;
  scrollbar-width:none; padding:1rem 2rem 1rem;
  cursor:grab;
  user-select:none;
  -webkit-overflow-scrolling:touch;
}
.h-scroll-track::-webkit-scrollbar { display:none; }
.h-scroll-track::before,
.h-scroll-track::after {
  content:''; flex:0 0 max(calc((100vw - 1180px)/2), 2rem);
}

/* Fade edges */
.h-scroll-container::before,
.h-scroll-container::after {
  content:''; position:absolute; top:0; bottom:0; width:100px; z-index:2; pointer-events:none;
}
.h-scroll-container::before { left:0; background:linear-gradient(90deg, var(--bg), transparent); }
.h-scroll-container::after  { right:0; background:linear-gradient(-90deg, var(--bg), transparent); }

/* scroll indicator dots */
.h-scroll-dots {
  display:flex; justify-content:center; gap:.5rem; margin-top:1rem;
}
.h-scroll-dot {
  width:5px; height:5px; border-radius:50%;
  background:var(--border-b);
  transition:all .3s;
  cursor:pointer;
}
.h-scroll-dot.active { background:var(--accent); width:20px; border-radius:3px; }

/* ─────────────────────────────────
   PROJECT CARDS (for h-scroll)
───────────────────────────────── */
.project-card {
  flex:0 0 320px;
  min-height: 300px;           /* explicit height breaks circular flex:1 dependency */
  background:var(--glass); border:1px solid var(--border);
  border-radius:var(--radius-lg); padding:1.6rem;
  backdrop-filter:blur(12px);
  display:flex; flex-direction:column;
  transition:border-color .3s, transform .3s, box-shadow .3s;
  position:relative; overflow:hidden;
  color:var(--text); text-decoration:none;
}
.project-card::after {
  content:''; position:absolute; inset:0;
  background:radial-gradient(circle at var(--mx,50%) var(--my,50%),
    rgba(124,117,245,.05) 0%, transparent 60%);
  pointer-events:none;
}
.tilt-card { cursor: default; }
.project-card .project-card-desc { flex: 1; min-height: 0; }
.project-card .project-card-footer { margin-top: auto; padding-top: 0.5rem; }

.project-card:hover {
  border-color:var(--border-b);
  box-shadow:0 30px 60px rgba(0,0,0,.5);
}
.project-card.featured { border-color:rgba(124,117,245,.28); }
.project-card.featured::before {
  content:'FEATURED';
  position:absolute; top:1.1rem; right:1.1rem;
  font-family:var(--mono); font-size:.63rem; letter-spacing:.14em;
  color:var(--accent); background:var(--accent-dim);
  padding:.22rem .55rem; border-radius:3px;
}

.project-header { display:flex; justify-content:space-between; align-items:flex-start; gap:1rem; }
.project-icon {
  width:46px; height:46px; border-radius:11px;
  display:flex; align-items:center; justify-content:center;
  font-size:1.3rem; flex-shrink:0;
}
.project-links { display:flex; gap:.65rem; }
.project-link {
  width:32px; height:32px; border:1px solid var(--border-b);
  border-radius:6px; display:flex; align-items:center; justify-content:center;
  color:var(--text-d); font-size:.84rem; transition:all var(--tr);
}
.project-link:hover { border-color:var(--accent); color:var(--accent); background:var(--accent-dim); }

.project-card h3 { font-size:1.18rem; font-weight:700; }
.project-card > p { font-size:.87rem; color:var(--text); line-height:1.72; flex:1; }

.project-stack { display:flex; flex-wrap:wrap; gap:.45rem; }
.project-tag {
  font-family:var(--mono); font-size:.68rem;
  padding:.24rem .58rem; border-radius:3px;
  background:var(--surface); border:1px solid var(--border); color:var(--text-d);
}
.project-tag.highlight {
  color:var(--green); border-color:rgba(59,220,143,.25); background:var(--green-dim);
}
.project-tag.cyan-tag {
  color:var(--cyan); border-color:rgba(38,212,232,.25); background:var(--cyan-dim);
}
.project-tag.live {
  color:var(--green); border-color:rgba(59,220,143,.4);
  position:relative; overflow:hidden;
}
.project-tag.live::after {
  content:''; position:absolute; inset:0; border-radius:inherit;
  background:rgba(59,220,143,.12);
  animation:liveGlow 2s ease-in-out infinite;
  will-change:opacity;
}
@keyframes liveGlow {
  0%,100% { opacity:0; }
  50%      { opacity:1; }
}

.project-metric {
  display:flex; gap:1.5rem;
  padding-top:.9rem;
  border-top:1px solid var(--border);
}
.metric .val {
  font-family:var(--display); font-size:1.2rem; font-weight:700; color:var(--heading);
}
.metric .key {
  font-size:.68rem; color:var(--text-d); font-family:var(--mono);
  text-transform:uppercase; letter-spacing:.05em;
}

/* ─────────────────────────────────
   BUTTONS
───────────────────────────────── */
.btn-primary {
  display:inline-flex; align-items:center; gap:.5rem;
  padding:.72rem 1.75rem;
  background:var(--accent); color:#fff;
  border-radius:5px; font-size:.86rem; font-weight:600;
  letter-spacing:.02em;
  border:1px solid var(--accent);
  transition:all var(--tr); white-space:nowrap;
}
.btn-primary:hover {
  background:#6a63e8; color:#fff;
  transform:translateY(-2px);
  box-shadow:0 10px 28px rgba(124,117,245,.38);
}

.btn-ghost {
  display:inline-flex; align-items:center; gap:.5rem;
  padding:.72rem 1.75rem;
  background:transparent; color:var(--text-b);
  border:1px solid var(--border-b); border-radius:5px;
  font-size:.86rem; font-weight:500;
  transition:all var(--tr); white-space:nowrap;
}
.btn-ghost:hover {
  background:var(--card); border-color:var(--accent);
  color:var(--accent); transform:translateY(-2px);
}

/* ─────────────────────────────────
   EXPERIENCE TIMELINE
───────────────────────────────── */
.exp-timeline { position:relative; padding-left:2rem; }
.exp-timeline::before {
  content:''; position:absolute;
  left:0; top:0; bottom:0; width:1px;
  background:linear-gradient(to bottom, var(--accent), var(--border), transparent);
}
.exp-item {
  position:relative; padding-bottom:3rem; padding-left:2rem;
  opacity:0; transform:translateX(-20px); transition:all .65s ease;
}
.exp-item.visible { opacity:1; transform:translateX(0); }
.exp-item::before {
  content:''; position:absolute;
  left:-2.38rem; top:.38rem;
  width:10px; height:10px; border-radius:50%;
  background:var(--accent); border:2px solid var(--bg);
  box-shadow:0 0 14px var(--accent-glow);
}
.exp-period { font-family:var(--mono); font-size:.73rem; color:var(--accent); letter-spacing:.08em; margin-bottom:.5rem; }
.exp-company { font-size:.86rem; color:var(--cyan); font-weight:500; margin-bottom:.7rem; }
.exp-item p { font-size:.87rem; color:var(--text); max-width:600px; }
.exp-tags { display:flex; flex-wrap:wrap; gap:.45rem; margin-top:.75rem; }

.cert-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(240px,1fr)); gap:1rem; margin-top:3.5rem; }
.cert-card {
  background:var(--card); border:1px solid var(--border);
  border-radius:10px; padding:1.4rem;
  display:flex; align-items:center; gap:.9rem;
  transition:all var(--tr);
}
.cert-card:hover { border-color:var(--border-b); transform:translateY(-3px); }
.cert-icon {
  width:40px; height:40px; border-radius:9px; background:var(--accent-dim);
  display:flex; align-items:center; justify-content:center; font-size:1.1rem; flex-shrink:0;
}
.cert-info h4 { font-size:.8rem; text-transform:none; letter-spacing:.01em; color:var(--text-b); margin-bottom:.2rem; }
.cert-info span { font-size:.72rem; color:var(--text-d); font-family:var(--mono); }

/* ─────────────────────────────────
   RESEARCH CARD
───────────────────────────────── */
.research-card {
  background:var(--card);
  border:1px solid rgba(124,117,245,.28);
  border-radius:18px; padding:3rem;
  position:relative; overflow:hidden;
  display:grid; grid-template-columns:1fr 1fr; gap:3rem; align-items:start;
}
.research-card::before {
  content:''; position:absolute; top:-70px; right:-70px;
  width:220px; height:220px;
  background:radial-gradient(circle, rgba(124,117,245,.07) 0%, transparent 70%);
  pointer-events:none;
}
.research-label {
  font-family:var(--mono); font-size:.68rem; letter-spacing:.14em;
  text-transform:uppercase; color:var(--accent);
  background:var(--accent-dim); border:1px solid rgba(124,117,245,.18);
  padding:.28rem .75rem; border-radius:3px; display:inline-block; margin-bottom:1rem;
}
.research-card h3 { font-size:1.3rem; line-height:1.42; margin-bottom:1rem; }
.research-journal { font-size:.8rem; color:var(--cyan); font-family:var(--mono); margin-bottom:1.2rem; }
.research-metrics { display:grid; grid-template-columns:1fr 1fr; gap:.9rem; }
.r-metric {
  background:var(--surface); border:1px solid var(--border);
  border-radius:8px; padding:1.2rem; text-align:center;
  transition:all var(--tr);
}
.r-metric:hover { border-color:var(--border-b); transform:translateY(-2px); }
.r-metric .val {
  font-family:var(--display); font-size:1.45rem; font-weight:800;
  color:var(--heading); display:block; margin-bottom:.25rem;
}
.r-metric .val.accent { color:var(--accent); }
.r-metric .val.green  { color:var(--green); }
.r-metric .val.cyan   { color:var(--cyan); }
.r-metric .key { font-size:.7rem; color:var(--text-d); font-family:var(--mono); text-transform:uppercase; letter-spacing:.06em; }
.research-actions { margin-top:1.75rem; display:flex; gap:.9rem; flex-wrap:wrap; }

/* ─────────────────────────────────
   COMPETITIVE
───────────────────────────────── */
.competitive-grid {
  display:grid; grid-template-columns:repeat(auto-fit,minmax(190px,1fr)); gap:1.4rem;
}
.comp-card {
  background:var(--card); border:1px solid var(--border);
  border-radius:13px; padding:2rem 1.5rem; text-align:center;
  transition:all var(--tr); position:relative; overflow:hidden;
}
.comp-card:hover { border-color:var(--border-b); transform:translateY(-5px); }
.comp-platform { font-family:var(--mono); font-size:.68rem; letter-spacing:.12em; text-transform:uppercase; color:var(--text-d); margin-bottom:1rem; }
.comp-stat { font-family:var(--display); font-size:2.2rem; font-weight:800; color:var(--heading); line-height:1; margin-bottom:.5rem; }
.comp-stat.green  { color:var(--green); }
.comp-stat.accent { color:var(--accent); }
.comp-stat.cyan   { color:var(--cyan); }
.comp-stat.amber  { color:var(--amber); }
.comp-label { font-size:.8rem; color:var(--text-d); }

/* ─────────────────────────────────
   CONTACT
───────────────────────────────── */
.contact-wrap { display:grid; grid-template-columns:1fr 1fr; gap:5rem; align-items:start; }
.contact-link {
  display:flex; align-items:center; gap:.9rem;
  padding:.72rem 1rem; background:var(--card);
  border:1px solid var(--border); border-radius:8px;
  color:var(--text); font-size:.87rem; margin-bottom:.65rem;
  transition:all var(--tr);
}
.contact-link:hover {
  border-color:var(--accent); background:var(--accent-dim);
  color:var(--accent); transform:translateX(5px);
}
.contact-link .link-icon {
  width:32px; height:32px; border-radius:6px; background:var(--surface);
  display:flex; align-items:center; justify-content:center; font-size:.88rem; flex-shrink:0;
}

/* ─────────────────────────────────
   FOOTER
───────────────────────────────── */
.footer { border-top:1px solid var(--border); padding:2.5rem 0; margin-top:3rem; }
.footer-inner { display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:1rem; }
.footer-copy { font-family:var(--mono); font-size:.76rem; color:var(--text-d); }
.footer-copy span { color:var(--accent); }
.footer-nav { display:flex; gap:1.5rem; list-style:none; }
.footer-nav a { font-size:.78rem; color:var(--text-d); }
.footer-nav a:hover { color:var(--accent); }

/* ─────────────────────────────────
   SCROLL REVEAL ANIMATIONS
───────────────────────────────── */
.reveal {
  opacity:0; transform:translateY(32px);
  transition:opacity .75s ease, transform .75s ease;
}
.reveal.visible { opacity:1; transform:translateY(0); }
.reveal-delay-1 { transition-delay:.1s; }
.reveal-delay-2 { transition-delay:.2s; }
.reveal-delay-3 { transition-delay:.3s; }
.reveal-delay-4 { transition-delay:.4s; }
.reveal-left  { opacity:0; transform:translateX(-30px); transition:opacity .75s ease,transform .75s ease; }
.reveal-right { opacity:0; transform:translateX(30px);  transition:opacity .75s ease,transform .75s ease; }
.reveal-left.visible,
.reveal-right.visible { opacity:1; transform:translateX(0); }
.reveal-scale { opacity:0; transform:scale(.94); transition:opacity .7s ease,transform .7s ease; }
.reveal-scale.visible { opacity:1; transform:scale(1); }

/* clip-path curtain reveal */
.reveal-curtain {
  clip-path:inset(0 0 100% 0); transition:clip-path .85s cubic-bezier(.77,0,.18,1);
}
.reveal-curtain.visible { clip-path:inset(0 0 0% 0); }

/* ─────────────────────────────────
   KEYFRAMES
───────────────────────────────── */
@keyframes fadeUp  { from{opacity:0;transform:translateY(22px)} to{opacity:1;transform:translateY(0)} }
@keyframes fadeIn  { from{opacity:0} to{opacity:1} }
@keyframes spinSlow { to { transform:rotate(360deg); } }


/* ─────────────────────────────────
   MOBILE NAV — open state
───────────────────────────────── */
.nav-links.mobile-open {
  display:flex !important;
  flex-direction:column;
  position:absolute; top:100%; left:0; right:0;
  background:rgba(5,5,14,.97);
  padding:1.5rem 2rem;
  border-bottom:1px solid var(--border);
  backdrop-filter:blur(20px);
  gap:1.25rem;
}

/* ─────────────────────────────────
   TILT CARDS (3D mouse effect)
───────────────────────────────── */
.tilt-card { transform-style:preserve-3d; }
.tilt-inner { transition:transform .6s cubic-bezier(.23,1,.32,1); will-change:transform; }

/* ─────────────────────────────────
   STAGGER CHILDREN
───────────────────────────────── */
.stagger-children > * {
  opacity:0; transform:translateY(24px);
  transition:opacity .6s ease, transform .6s ease;
}
.stagger-children > *.visible { opacity:1; transform:translateY(0); }

/* ─────────────────────────────────
   SKILL TAG WAVE ANIMATION
───────────────────────────────── */
@keyframes tagWave {
  0%,100% { transform:translateY(0); }
  50%     { transform:translateY(-3px); }
}
.tag-wave { animation:tagWave 2.4s ease-in-out infinite; }

/* ─────────────────────────────────
   NAV RIGHT — responsive hide
───────────────────────────────── */
@media (max-width:900px) {
  .nav-right > a { display:none; }
  .nav-links { display:none; }
  .nav-hamburger { display:flex !important; }
}

/* ─────────────────────────────────
   RESPONSIVE
───────────────────────────────── */
@media (max-width:900px) {
  .abou
@media (max-width:768px) {
  .float-orb { display:none; }
  #bg-gradient { display:none; }
}

/* ─── CLS FIXES ─── */
/* Reserve space for nav to prevent content jump */
body { padding-top: 0; }
.hero { min-height: 100svh; min-height: 100vh; contain: layout style; }
/* Prevent font-swap CLS: set fallback metrics close to actual fonts */
html { font-family: 'Inter', system-ui, -apple-system, sans-serif; }
/* Sections: isolate layout recalc */
section { contain: layout style; }