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

/* ─── DESIGN TOKENS ─── */
:root {
  --bg: #050505;
  --bg-2: #0d0d0d;
  --bg-card: #111111;
  --bg-card-hover: #181818;
  --border: rgba(255,255,255,0.06);
  --border-hover: rgba(255,255,255,0.12);
  --text: #e8e6e3;
  --text-dim: #7a7a7a;
  --text-bright: #ffffff;
  --accent: #f59e0b;
  --accent-2: #8b5cf6;
  --accent-glow: rgba(245,158,11,0.15);
  --radius: 16px;
  --radius-sm: 10px;
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --transition: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--accent); color: #000; }

/* ─── NOISE OVERLAY ─── */
body::before {
  content: ''; position: fixed; inset: 0; z-index: 9999;
  pointer-events: none; opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* ─── SCROLL PROGRESS ─── */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 2px; z-index: 200;
  background: var(--accent); width: 0%;
  box-shadow: 0 0 12px var(--accent);
}

/* ─── NAV ─── */
nav {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 100;
  padding: 0 clamp(20px, 4vw, 60px); height: 72px;
  display: flex; align-items: center;
  background: rgba(5,5,5,0.6);
  backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
  transition: all 0.4s var(--transition);
}
nav .logo {
  font-family: var(--font-heading); font-weight: 700;
  font-size: 1.2rem; letter-spacing: -0.5px; flex: 1;
  color: var(--text-bright);
}
nav .logo em {
  font-style: normal; color: var(--accent);
}
nav ul { list-style: none; display: flex; gap: 8px; }
nav ul li a {
  color: var(--text-dim); text-decoration: none; font-size: 0.85rem;
  font-weight: 500; padding: 6px 14px; border-radius: 8px;
  transition: all 0.3s var(--transition); letter-spacing: 0.3px;
}
nav ul li a:hover, nav ul li a.active {
  color: var(--text-bright); background: rgba(255,255,255,0.06);
}
.nav-cta {
  margin-left: 16px; background: var(--accent); color: #000;
  padding: 8px 20px; border-radius: 8px; font-weight: 600;
  font-size: 0.85rem; text-decoration: none;
  transition: all 0.3s var(--transition); border: none; cursor: pointer;
  font-family: var(--font-body);
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 4px 20px var(--accent-glow); }

/* Hamburger */
.hamburger {
  display: none; flex-direction: column; gap: 5px; cursor: pointer;
  background: none; border: none; padding: 8px; margin-left: 8px;
}
.hamburger span {
  width: 22px; height: 2px; background: var(--text);
  border-radius: 2px; transition: all 0.3s;
}
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }

/* ─── HERO ─── */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  padding: 120px clamp(20px, 6vw, 100px) 80px;
  position: relative; overflow: hidden;
}
.hero-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
  align-items: center; width: 100%; max-width: 1300px; margin: 0 auto;
}
.hero-text { z-index: 2; }
.hero-label {
  font-size: 0.8rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 3px; color: var(--accent); margin-bottom: 20px;
  display: flex; align-items: center; gap: 10px;
}
.hero-label::before {
  content: ''; width: 24px; height: 1px; background: var(--accent);
}
.hero h1 {
  font-family: var(--font-heading); font-size: clamp(2.8rem, 5.5vw, 5rem);
  font-weight: 700; line-height: 1.05; letter-spacing: -2px;
  color: var(--text-bright); margin-bottom: 24px;
}
.hero h1 .accent { color: var(--accent); }
.hero .subtitle {
  font-size: 1.1rem; color: var(--text-dim); max-width: 480px;
  line-height: 1.7; margin-bottom: 32px;
}
.hero .typed-cursor { color: var(--accent); animation: blink 1s step-end infinite; }
@keyframes blink { 0%,100% { opacity:1; } 50% { opacity:0; } }

.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 36px; }
.hero-tags .tag {
  background: rgba(255,255,255,0.04); border: 1px solid var(--border);
  padding: 6px 16px; border-radius: 100px; font-size: 0.82rem;
  font-weight: 500; color: var(--text-dim); transition: all 0.3s;
}
.hero-tags .tag:hover { border-color: var(--accent); color: var(--accent); }

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-primary {
  background: var(--accent); color: #000; padding: 14px 32px;
  border-radius: 12px; font-weight: 600; font-size: 0.95rem;
  text-decoration: none; display: inline-flex; align-items: center; gap: 8px;
  transition: all 0.3s var(--transition); border: none; cursor: pointer;
  font-family: var(--font-body);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px var(--accent-glow); }
.btn-outline {
  background: transparent; color: var(--text); padding: 14px 32px;
  border-radius: 12px; font-weight: 600; font-size: 0.95rem;
  text-decoration: none; display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--border); transition: all 0.3s var(--transition);
  cursor: pointer; font-family: var(--font-body);
}
.btn-outline:hover { border-color: var(--text-dim); background: rgba(255,255,255,0.04); }

.hero-image {
  position: relative; display: flex; justify-content: center; align-items: center;
}
.hero-image .portrait {
  width: 340px; height: 420px; border-radius: 24px; object-fit: cover;
  border: 1px solid var(--border); position: relative; z-index: 2;
  filter: grayscale(20%) contrast(1.05);
  transition: all 0.5s var(--transition);
}
.hero-image .portrait:hover { filter: none; transform: scale(1.02); }
.hero-image .frame {
  position: absolute; inset: -12px; border-radius: 30px;
  border: 1px solid var(--accent); opacity: 0.2; z-index: 1;
}
.hero-image .glow {
  position: absolute; width: 300px; height: 300px; border-radius: 50%;
  background: var(--accent); filter: blur(120px); opacity: 0.08; z-index: 0;
}

/* ─── SECTION HEADERS ─── */
.section-pad { padding: 0 clamp(20px, 6vw, 100px); max-width: 1400px; margin: 0 auto; }
.section-header {
  display: flex; align-items: center; gap: 16px;
  margin-top: 140px; margin-bottom: 56px;
}
.section-num {
  font-family: var(--font-heading); font-size: 0.85rem; font-weight: 600;
  color: var(--accent); min-width: 32px;
}
.section-title {
  font-family: var(--font-heading); font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700; letter-spacing: -1px; color: var(--text-bright);
}
.section-line { flex: 1; height: 1px; background: var(--border); }

/* ─── ABOUT ─── */
.about-content {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
}
.about-content p {
  color: var(--text-dim); font-size: 1rem; line-height: 1.8;
}
.about-content strong { color: var(--text); font-weight: 600; }
.about-content em { color: var(--accent); font-style: normal; }

/* ─── BENTO GRID ─── */
.bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.bento-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.5s var(--transition);
  position: relative;
  display: flex; flex-direction: column;
}
.bento-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
}
.bento-card.wide { grid-column: span 2; }
.bento-card .card-img {
  width: 100%; height: 200px; object-fit: cover;
  transition: transform 0.6s var(--transition); display: block;
}
.bento-card:hover .card-img { transform: scale(1.04); }
.bento-card .card-body { padding: 24px; flex: 1; }
.bento-card .card-icon {
  font-size: 1.3rem; color: var(--accent); margin-bottom: 12px; display: block;
}
.bento-card .card-title {
  font-family: var(--font-heading); font-weight: 700; font-size: 1.1rem;
  color: var(--text-bright); margin-bottom: 8px; letter-spacing: -0.3px;
}
.bento-card .card-desc {
  color: var(--text-dim); font-size: 0.9rem; line-height: 1.6;
}

/* ─── SKILLS ─── */
.skills-wrap { display: flex; flex-wrap: wrap; gap: 12px; }
.skill-chip {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 12px; padding: 14px 24px;
  display: flex; align-items: center; gap: 10px;
  font-weight: 500; font-size: 0.92rem; color: var(--text);
  transition: all 0.3s var(--transition); cursor: default;
}
.skill-chip i { color: var(--accent); font-size: 1.1rem; }
.skill-chip:hover {
  border-color: var(--accent); background: var(--accent-glow);
  transform: translateY(-2px);
}

/* ─── TIMELINE ─── */
.timeline { position: relative; padding-left: 48px; max-width: 700px; }
.timeline::before {
  content: ''; position: absolute; left: 7px; top: 8px; bottom: 8px;
  width: 1px; background: linear-gradient(to bottom, var(--accent), var(--border));
}
.timeline-item { position: relative; margin-bottom: 48px; }
.timeline-item:last-child { margin-bottom: 0; }
.timeline-item::before {
  content: ''; position: absolute; left: -44px; top: 8px;
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 0 4px var(--bg), 0 0 0 5px var(--accent);
}
.timeline-item .tl-role {
  font-family: var(--font-heading); font-size: 1.15rem; font-weight: 700;
  color: var(--text-bright); margin-bottom: 2px;
}
.timeline-item .tl-company {
  font-size: 0.9rem; color: var(--accent); font-weight: 500; margin-bottom: 8px;
}
.timeline-item .tl-desc { color: var(--text-dim); font-size: 0.92rem; }

/* ─── BLOG ─── */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.blog-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px 24px;
  transition: all 0.4s var(--transition); cursor: pointer;
  display: flex; flex-direction: column; gap: 12px;
}
.blog-card:hover {
  border-color: var(--accent); background: var(--bg-card-hover);
  transform: translateY(-4px);
}
.blog-card .blog-date { font-size: 0.8rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; }
.blog-card .blog-title {
  font-family: var(--font-heading); font-weight: 700; font-size: 1.1rem;
  color: var(--text-bright); letter-spacing: -0.3px;
}
.blog-card .blog-desc { color: var(--text-dim); font-size: 0.9rem; line-height: 1.6; flex: 1; }
.blog-card .blog-link {
  color: var(--accent); text-decoration: none; font-weight: 600;
  font-size: 0.88rem; display: inline-flex; align-items: center; gap: 6px;
  transition: gap 0.3s;
}
.blog-card:hover .blog-link { gap: 12px; }

/* ─── CONTACT ─── */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.contact-text p { color: var(--text-dim); font-size: 1rem; line-height: 1.8; margin-bottom: 28px; }
.social-row { display: flex; flex-wrap: wrap; gap: 10px; }
.social-btn {
  width: 50px; height: 50px; border-radius: 14px; display: flex;
  align-items: center; justify-content: center; font-size: 1.2rem;
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text-dim); text-decoration: none;
  transition: all 0.3s var(--transition);
}
.social-btn:hover { color: #fff; transform: translateY(-3px) scale(1.08); }
.social-btn.email:hover { background: #ea4335; border-color: #ea4335; }
.social-btn.github:hover { background: #333; border-color: #555; }
.social-btn.linkedin:hover { background: #0a66c2; border-color: #0a66c2; }
.social-btn.kaggle:hover { background: #20beff; border-color: #20beff; }
.social-btn.tableau:hover { background: #e97627; border-color: #e97627; }
.social-btn.medium:hover { background: #1a1a1a; border-color: #444; }
.social-btn.youtube:hover { background: #ff0000; border-color: #ff0000; }

.download-row { display: flex; gap: 12px; margin-top: 24px; flex-wrap: wrap; }

/* ─── FOOTER ─── */
footer {
  text-align: center; padding: 48px 20px 32px; margin-top: 140px;
  border-top: 1px solid var(--border); color: var(--text-dim);
  font-size: 0.85rem;
}
footer .footer-links { display: flex; justify-content: center; gap: 24px; margin-bottom: 16px; }
footer .footer-links a { color: var(--text-dim); text-decoration: none; font-size: 0.85rem; transition: color 0.3s; }
footer .footer-links a:hover { color: var(--accent); }

/* ─── SCROLL REVEAL ─── */
.sr { opacity: 0; transform: translateY(30px); transition: all 0.8s var(--transition); }
.sr.visible { opacity: 1; transform: none; }
.sr-d1 { transition-delay: 0.08s; } .sr-d2 { transition-delay: 0.16s; }
.sr-d3 { transition-delay: 0.24s; } .sr-d4 { transition-delay: 0.32s; }
.sr-d5 { transition-delay: 0.4s; } .sr-d6 { transition-delay: 0.48s; }

/* Hero entrance */
.hero-text > * { opacity: 0; transform: translateY(24px); animation: slideUp 0.7s var(--transition) forwards; }
.hero-text > *:nth-child(1) { animation-delay: 0.2s; }
.hero-text > *:nth-child(2) { animation-delay: 0.35s; }
.hero-text > *:nth-child(3) { animation-delay: 0.5s; }
.hero-text > *:nth-child(4) { animation-delay: 0.65s; }
.hero-text > *:nth-child(5) { animation-delay: 0.8s; }
.hero-image { opacity: 0; animation: fadeScale 1s var(--transition) 0.5s forwards; }
@keyframes slideUp { to { opacity: 1; transform: none; } }
@keyframes fadeScale { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: none; } }

/* ─── RESPONSIVE ─── */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; text-align: center; }
  .hero-text { order: 2; } .hero-image { order: 1; }
  .hero-label { justify-content: center; }
  .hero-tags { justify-content: center; }
  .hero-actions { justify-content: center; }
  .hero-image .portrait { width: 220px; height: 280px; }
  .about-content { grid-template-columns: 1fr; }
  .bento { grid-template-columns: 1fr; }
  .bento-card.wide { grid-column: span 1; }
  .blog-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  nav ul {
    position: fixed; top: 72px; left: 0; right: 0;
    background: rgba(5,5,5,0.95); backdrop-filter: blur(20px);
    flex-direction: column; align-items: center; padding: 24px 0; gap: 8px;
    transform: translateY(-120%); transition: transform 0.3s;
    border-bottom: 1px solid var(--border);
  }
  nav ul.open { transform: translateY(0); }
  .hamburger { display: flex; }
  .nav-cta { display: none; }
}
@media (max-width: 480px) {
  .hero h1 { font-size: 2rem; letter-spacing: -1px; }
  .section-title { font-size: 1.5rem; }
  .hero-image .portrait { width: 180px; height: 230px; }
}