:root {
    --black: #0a0a0a;
    --white: #f5f0eb;
    --red: #c8102e;
    --red-dim: #8a0b1e;
    --gray: #1a1a1a;
    --gray-mid: #2e2e2e;
    --gray-light: #888;
    --mono: 'JetBrains Mono', monospace;
    --serif: 'DM Serif Display', serif;
    --sans: 'Syne', sans-serif;
  }

  *, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

  html { scroll-behavior: smooth; }

  body {
    background: var(--black);
    color: var(--white);
    font-family: var(--sans);
    overflow-x: hidden;
    cursor: none;
  }

  /* ─── CUSTOM CURSOR ─── */
  #cursor {
    width: 12px; height: 12px;
    background: var(--red);
    border-radius: 50%;
    position: fixed; top: 0; left: 0;
    pointer-events: none; z-index: 9999;
    transform: translate(-50%, -50%);
    transition: width 0.2s, height 0.2s, background 0.2s;
  }
  #cursor-ring {
    width: 36px; height: 36px;
    border: 1px solid rgba(200,16,46,0.5);
    border-radius: 50%;
    position: fixed; top: 0; left: 0;
    pointer-events: none; z-index: 9998;
    transform: translate(-50%, -50%);
  }
  body:has(a:hover) #cursor, body:has(button:hover) #cursor { width: 20px; height: 20px; }

  /* ─── NOISE OVERLAY ─── */
  body::before {
    content: '';
    position: fixed; inset: 0;
    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='0.04'/%3E%3C/svg%3E");
    opacity: 0.35;
    pointer-events: none;
    z-index: 1000;
  }

  /* ─── NAV ─── */
  nav {
    position: fixed; top: 0; left: 0; right: 0;
    z-index: 500;
    display: flex; justify-content: space-between; align-items: center;
    padding: 1.5rem 4rem;
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s, background 0.3s;
  }
  nav.scrolled {
    background: rgba(10,10,10,0.92);
    border-color: var(--gray-mid);
    backdrop-filter: blur(10px);
  }
  .nav-logo {
    font-family: var(--mono);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    color: var(--gray-light);
  }
  .nav-logo span { color: var(--red); }
  .nav-links { display: flex; gap: 2.5rem; list-style: none; }
  .nav-links a {
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--gray-light);
    text-decoration: none;
    position: relative;
    transition: color 0.2s;
  }
  .nav-links a::after {
    content: '';
    position: absolute; bottom: -3px; left: 0;
    width: 0; height: 1px;
    background: var(--red);
    transition: width 0.3s;
  }
  .nav-links a:hover { color: var(--white); }
  .nav-links a:hover::after { width: 100%; }

  /* ─── HERO ─── */
  #hero {
    min-height: 100vh;
    display: flex; flex-direction: column;
    justify-content: center;
    padding: 8rem 4rem 0;
    position: relative;
    overflow: hidden;
  }

  .hero-bg-grid {
    position: absolute; inset: 0;
    background-image:
      linear-gradient(rgba(200,16,46,0.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(200,16,46,0.03) 1px, transparent 1px);
    background-size: 80px 80px;
  }

  .hero-tag {
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    color: var(--red);
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    opacity: 0;
  }

  .hero-name {
    font-family: var(--serif);
    font-size: clamp(4rem, 10vw, 9rem);
    line-height: 0.92;
    letter-spacing: -0.02em;
    overflow: hidden;
  }

  .hero-name .line { display: block; overflow: hidden; }
  .hero-name .word { display: inline-block; transform: translateY(110%); }

  .hero-name em {
    font-style: italic;
    color: transparent;
    -webkit-text-stroke: 1px var(--white);
  }

  .hero-sub {
    margin-top: 2.5rem;
    margin-bottom: 4rem;
    display: flex; align-items: center; gap: 3rem;
    opacity: 0;
  }
  .hero-sub p {
    font-size: 0.9rem;
    color: var(--gray-light);
    max-width: 300px;
    line-height: 1.7;
  }
  .hero-cta {
    display: inline-flex; align-items: center; gap: 0.75rem;
    padding: 0.9rem 2rem;
    border: 1px solid var(--red);
    color: var(--white);
    text-decoration: none;
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    position: relative;
    overflow: hidden;
    transition: color 0.3s;
    white-space: nowrap;
  }
  .hero-cta::before {
    content: '';
    position: absolute; inset: 0;
    background: var(--red);
    transform: translateX(-101%);
    transition: transform 0.4s cubic-bezier(0.76,0,0.24,1);
  }
  .hero-cta:hover::before { transform: translateX(0); }
  .hero-cta span { position: relative; z-index: 1; }

  .hero-scroll {
    position: absolute; right: 4rem; bottom: 3rem;
    writing-mode: vertical-rl;
    font-family: var(--mono);
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    color: var(--gray-light);
    display: flex; align-items: center; gap: 1rem;
    opacity: 0;
  }
  .hero-scroll::after {
    content: '';
    width: 1px; height: 60px;
    background: linear-gradient(to bottom, var(--gray-light), transparent);
  }

  .hero-counter {
    display: flex; gap: 3rem;
    opacity: 0;
    padding: 2.5rem 0 4rem;
    border-top: 1px solid var(--gray-mid);
    margin-top: auto;
  }
  .counter-item { text-align: left; }
  .counter-num {
    font-family: var(--serif);
    font-size: 2.8rem;
    line-height: 1;
    color: var(--white);
  }
  .counter-num .red { color: var(--red); }
  .counter-label {
    font-family: var(--mono);
    font-size: 0.62rem;
    letter-spacing: 0.15em;
    color: var(--gray-light);
    text-transform: uppercase;
    margin-top: 0.4rem;
  }

  /* ─── SECTIONS BASE ─── */
  section {
    padding: 8rem 4rem;
    position: relative;
  }

  .section-tag {
    font-family: var(--mono);
    font-size: 0.65rem;
    letter-spacing: 0.25em;
    color: var(--red);
    text-transform: uppercase;
    margin-bottom: 1rem;
  }

  .section-title {
    font-family: var(--serif);
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    line-height: 1.05;
    margin-bottom: 4rem;
    opacity: 0;
  }

  .section-title em { font-style: italic; color: transparent; -webkit-text-stroke: 1px var(--white); }

  .divider {
    height: 1px;
    background: linear-gradient(to right, var(--red), transparent);
    margin-bottom: 5rem;
    transform-origin: left;
    transform: scaleX(0);
  }

  /* ─── ABOUT ─── */
  #about { background: var(--black); }

  .about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: start;
  }

  .about-text p {
    font-size: 1.05rem;
    line-height: 1.85;
    color: var(--gray-light);
    margin-bottom: 1.5rem;
  }
  .about-text p strong { color: var(--white); font-weight: 600; }
  .about-text p .accent { color: var(--red); font-weight: 600; }

  .about-facts { display: flex; flex-direction: column; gap: 1.5rem; }
  .fact-row {
    display: flex; justify-content: space-between; align-items: baseline;
    border-bottom: 1px solid var(--gray-mid);
    padding-bottom: 1.2rem;
    opacity: 0;
    transform: translateX(20px);
  }
  .fact-key { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.15em; color: var(--gray-light); text-transform: uppercase; }
  .fact-val { font-size: 0.9rem; color: var(--white); text-align: right; }

  /* ─── SKILLS ─── */
  #skills { background: var(--gray); }

  .skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--gray-mid);
    border: 1px solid var(--gray-mid);
  }

  .skill-card {
    background: var(--gray);
    padding: 2.5rem 2rem;
    position: relative;
    overflow: hidden;
    transition: background 0.3s;
    opacity: 0;
  }
  .skill-card::before {
    content: '';
    position: absolute; top: 0; left: 0;
    width: 2px; height: 0;
    background: var(--red);
    transition: height 0.4s cubic-bezier(0.76,0,0.24,1);
  }
  .skill-card:hover::before { height: 100%; }
  .skill-card:hover { background: #1e1e1e; }

  .skill-cat {
    font-family: var(--mono);
    font-size: 0.62rem;
    letter-spacing: 0.2em;
    color: var(--red);
    text-transform: uppercase;
    margin-bottom: 1rem;
  }
  .skill-list {
    display: flex; flex-wrap: wrap; gap: 0.5rem;
  }
  .skill-pill {
    font-size: 0.78rem;
    padding: 0.3rem 0.75rem;
    border: 1px solid var(--gray-mid);
    color: var(--gray-light);
    border-radius: 0;
    transition: border-color 0.2s, color 0.2s;
  }
  .skill-card:hover .skill-pill { border-color: rgba(200,16,46,0.3); color: var(--white); }
  .skill-pill.hot { border-color: rgba(200,16,46,0.4); color: var(--white); }

  /* ─── EXPERIENCE ─── */
  #experience { background: var(--black); }

  .exp-list { display: flex; flex-direction: column; }

  .exp-item {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 4rem;
    padding: 3.5rem 0;
    border-bottom: 1px solid var(--gray-mid);
    position: relative;
    opacity: 0;
    transform: translateX(-40px);
  }
  .exp-item::before {
    content: '';
    position: absolute; left: 0; top: 0;
    width: 0; height: 1px;
    background: var(--red);
    transition: width 0.6s cubic-bezier(0.76,0,0.24,1);
  }
  .exp-item.active::before { width: 100%; }

  .exp-meta { padding-top: 0.2rem; }
  .exp-period {
    font-family: var(--mono);
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    color: var(--red);
    margin-bottom: 0.5rem;
  }
  .exp-company {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 0.25rem;
  }
  .exp-location {
    font-family: var(--mono);
    font-size: 0.62rem;
    color: var(--gray-light);
    letter-spacing: 0.1em;
  }

  .exp-content {}
  .exp-role {
    font-family: var(--serif);
    font-size: 1.6rem;
    margin-bottom: 1rem;
    color: var(--white);
  }
  .exp-tech {
    display: flex; flex-wrap: wrap; gap: 0.4rem;
    margin-bottom: 1.5rem;
  }
  .exp-tech span {
    font-family: var(--mono);
    font-size: 0.6rem;
    letter-spacing: 0.1em;
    padding: 0.2rem 0.6rem;
    background: var(--gray-mid);
    color: var(--gray-light);
    text-transform: uppercase;
  }
  .exp-bullets { list-style: none; display: flex; flex-direction: column; gap: 0.9rem; }
  .exp-bullets li {
    font-size: 0.88rem;
    color: var(--gray-light);
    line-height: 1.7;
    padding-left: 1.5rem;
    position: relative;
  }
  .exp-bullets li::before {
    content: '—';
    position: absolute; left: 0;
    color: var(--red);
    font-weight: 700;
  }
  .exp-bullets li strong { color: var(--white); font-weight: 600; }

  .exp-project {
    margin-bottom: 2rem;
    padding: 1.5rem;
    border-left: 2px solid var(--gray-mid);
    transition: border-color 0.3s;
  }
  .exp-project:hover { border-color: var(--red); }
  .exp-project-name {
    font-family: var(--mono);
    font-size: 0.68rem;
    letter-spacing: 0.15em;
    color: var(--red);
    text-transform: uppercase;
    margin-bottom: 1rem;
  }

  /* ─── IMPACT NUMBERS ─── */
  #impact {
    background: var(--red);
    padding: 6rem 4rem;
  }
  .impact-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
  }
  .impact-item {
    padding: 2rem;
    border-right: 1px solid rgba(255,255,255,0.15);
    text-align: center;
    opacity: 0;
    transform: scale(0.85);
  }
  .impact-item:last-child { border-right: none; }
  .impact-num {
    font-family: var(--serif);
    font-size: clamp(2.5rem, 4vw, 4rem);
    color: var(--white);
    line-height: 1;
    margin-bottom: 0.75rem;
  }
  .impact-label {
    font-family: var(--mono);
    font-size: 0.62rem;
    letter-spacing: 0.15em;
    color: rgba(255,255,255,0.65);
    text-transform: uppercase;
  }

  /* ─── PROJECTS ─── */
  #projects { background: var(--gray); }

  .projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
  }
  .project-card {
    border: 1px solid var(--gray-mid);
    padding: 2.5rem;
    position: relative;
    overflow: hidden;
    transition: border-color 0.3s;
    opacity: 0;
    transform: translateY(40px);
  }
  .project-card::after {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(200,16,46,0.05), transparent);
    opacity: 0;
    transition: opacity 0.4s;
  }
  .project-card:hover { border-color: rgba(200,16,46,0.5); }
  .project-card:hover::after { opacity: 1; }

  .project-num {
    font-family: var(--mono);
    font-size: 0.6rem;
    letter-spacing: 0.2em;
    color: var(--red);
    margin-bottom: 1.5rem;
  }
  .project-name {
    font-family: var(--serif);
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--white);
  }
  .project-desc {
    font-size: 0.85rem;
    color: var(--gray-light);
    line-height: 1.7;
    margin-bottom: 1.5rem;
  }
  .project-stack {
    display: flex; flex-wrap: wrap; gap: 0.4rem;
  }
  .project-stack span {
    font-family: var(--mono);
    font-size: 0.6rem;
    letter-spacing: 0.08em;
    padding: 0.25rem 0.6rem;
    border: 1px solid var(--gray-mid);
    color: var(--gray-light);
  }

  /* ─── EDUCATION ─── */
  #education { background: var(--black); }
  .edu-card {
    border: 1px solid var(--gray-mid);
    padding: 3rem;
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: start;
    gap: 2rem;
    position: relative;
    overflow: hidden;
    max-width: 800px;
    opacity: 0;
    transform: translateY(30px);
  }
  .edu-card::before {
    content: 'B.E.';
    position: absolute; right: -1rem; bottom: -2rem;
    font-family: var(--serif);
    font-size: 8rem;
    color: rgba(200,16,46,0.05);
    line-height: 1;
    pointer-events: none;
  }
  .edu-degree { font-family: var(--serif); font-size: 1.8rem; margin-bottom: 0.5rem; }
  .edu-field { font-size: 0.85rem; color: var(--gray-light); margin-bottom: 1rem; }
  .edu-school { font-size: 0.95rem; color: var(--white); font-weight: 600; }
  .edu-location { font-family: var(--mono); font-size: 0.65rem; color: var(--gray-light); letter-spacing: 0.1em; margin-top: 0.25rem; }
  .edu-period {
    font-family: var(--mono);
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    color: var(--red);
    text-align: right;
    white-space: nowrap;
  }

  /* ─── CONTACT ─── */
  #contact {
    background: var(--gray);
    text-align: center;
    padding: 10rem 4rem;
    position: relative;
    overflow: hidden;
  }
  #contact::before {
    content: 'CONNECT';
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%,-50%);
    font-family: var(--serif);
    font-size: 18vw;
    color: rgba(255,255,255,0.02);
    white-space: nowrap;
    pointer-events: none;
  }
  .contact-intro {
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    color: var(--red);
    text-transform: uppercase;
    margin-bottom: 1.5rem;
  }
  .contact-title {
    font-family: var(--serif);
    font-size: clamp(2.5rem, 6vw, 5rem);
    margin-bottom: 2rem;
    line-height: 1.1;
    opacity: 0;
    transform: translateY(40px);
  }
  .contact-title em { font-style: italic; color: transparent; -webkit-text-stroke: 1px var(--white); }
  .contact-desc {
    font-size: 0.95rem;
    color: var(--gray-light);
    max-width: 420px;
    margin: 0 auto 3rem;
    line-height: 1.8;
  }
  .contact-links {
    display: flex; justify-content: center; gap: 1.5rem; flex-wrap: wrap;
    margin-bottom: 4rem;
  }
  .contact-link {
    display: inline-flex; align-items: center; gap: 0.6rem;
    padding: 0.9rem 2rem;
    border: 1px solid var(--gray-mid);
    color: var(--white);
    text-decoration: none;
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    position: relative; overflow: hidden;
    transition: color 0.3s, border-color 0.3s;
    opacity: 0;
    transform: translateY(20px);
  }
  .contact-link.primary { border-color: var(--red); }
  .contact-link::before {
    content: '';
    position: absolute; inset: 0;
    background: var(--red);
    transform: translateX(-101%);
    transition: transform 0.4s cubic-bezier(0.76,0,0.24,1);
  }
  .contact-link:hover::before { transform: translateX(0); }
  .contact-link span { position: relative; z-index: 1; }
  .contact-detail {
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    color: var(--gray-light);
  }
  .contact-detail a { color: var(--gray-light); text-decoration: none; transition: color 0.2s; }
  .contact-detail a:hover { color: var(--red); }

  /* ─── FOOTER ─── */
  footer {
    background: var(--black);
    padding: 2rem 4rem;
    display: flex; justify-content: space-between; align-items: center;
    border-top: 1px solid var(--gray-mid);
  }
  footer p { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.1em; color: var(--gray-light); }
  footer .red { color: var(--red); }

  /* ─── MARQUEE ─── */
  .marquee-wrap {
    background: var(--red);
    padding: 1rem 0;
    overflow: hidden;
    white-space: nowrap;
  }
  .marquee-inner {
    display: inline-block;
    animation: marquee 20s linear infinite;
  }
  .marquee-inner span {
    font-family: var(--mono);
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.8);
    padding: 0 3rem;
  }
  .marquee-inner span::before { content: '◆  '; color: rgba(255,255,255,0.4); }
  @keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }

  /* ─── LOADING SCREEN ─── */
  #loader {
    position: fixed; inset: 0;
    background: var(--black);
    z-index: 9000;
    display: flex; align-items: center; justify-content: center;
    flex-direction: column; gap: 1.5rem;
  }
  .loader-name {
    font-family: var(--serif);
    font-size: 2.5rem;
    color: var(--white);
    overflow: hidden;
  }
  .loader-bar-wrap {
    width: 200px; height: 1px;
    background: var(--gray-mid);
    position: relative;
  }
  .loader-bar {
    position: absolute; top: 0; left: 0;
    height: 100%; width: 0;
    background: var(--red);
    transition: width 0.05s linear;
  }
  .loader-pct {
    font-family: var(--mono);
    font-size: 0.65rem;
    letter-spacing: 0.2em;
    color: var(--gray-light);
  }

  /* ─── SCROLL PROGRESS ─── */
  #progress {
    position: fixed; top: 0; left: 0;
    height: 2px; width: 0%;
    background: var(--red);
    z-index: 600;
    transition: width 0.1s linear;
  }

  /* ─── RESPONSIVE ─── */
  @media (max-width: 900px) {
    nav { padding: 1.25rem 2rem; }
    .nav-links { gap: 1.5rem; }
    section { padding: 5rem 2rem; }
    #hero { padding: 6rem 2rem 0; }
    .about-grid { grid-template-columns: 1fr; gap: 3rem; }
    .skills-grid { grid-template-columns: repeat(2, 1fr); }
    .exp-item { grid-template-columns: 1fr; gap: 1.5rem; }
    .impact-grid { grid-template-columns: repeat(2, 1fr); }
    .projects-grid { grid-template-columns: 1fr; }
    .hero-counter { display: none; }
    footer { flex-direction: column; gap: 1rem; text-align: center; }
  }
  @media (max-width: 600px) {
    .skills-grid { grid-template-columns: 1fr; }
    .impact-grid { grid-template-columns: 1fr; }
    .nav-links { display: none; }
    .hero-scroll { display: none; }
  }