:root {
      --black:    #000000;
      --white:    #FFFFFF;
      --gray-05:  #F5F5F5;
      --gray-10:  #E8E8E8;
      --gray-20:  #CCCCCC;
      --gray-40:  #888888;
      --gray-60:  #444444;
      --gray-80:  #222222;
      --gray-90:  #111111;
      --border:   1px solid var(--gray-10);
      --border-dk:1px solid var(--gray-20);
      --nav-h:    58px;
      --font-head: 'Inter', Arial, sans-serif;
      --font-mono: 'Inter', Arial, sans-serif;
    }

    
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body {
      background: var(--white);
      color: var(--black);
      font-family: var(--font-mono);
      font-size: 17px;
      font-weight: 400;
      line-height: 1.8;
      overflow-x: hidden;
      cursor: crosshair;
    }
    a { color: inherit; text-decoration: none; cursor: crosshair; }
    ul { list-style: none; }
    img { display: block; max-width: 100%; }
    ::-webkit-scrollbar { width: 4px; }
    ::-webkit-scrollbar-track { background: var(--white); }
    ::-webkit-scrollbar-thumb { background: var(--black); }
    section { scroll-margin-top: var(--nav-h); }

    
    @keyframes fadeUp {
      from { opacity: 0; transform: translateY(20px); }
      to   { opacity: 1; transform: translateY(0); }
    }
    @keyframes fadeIn {
      from { opacity: 0; }
      to   { opacity: 1; }
    }
    @keyframes marquee {
      from { transform: translateX(0); }
      to   { transform: translateX(-50%); }
    }
    @keyframes blink {
      0%, 100% { opacity: 1; }
      50%       { opacity: 0; }
    }
    @keyframes drawLine {
      from { width: 0; }
      to   { width: 100%; }
    }
    @keyframes float {
      0%,100% { transform: translateY(0); }
      50%     { transform: translateY(-6px); }
    }

    
    .container {
      width: min(1100px, 100% - 48px);
      margin-inline: auto;
    }
    .row-rule {
      border: none;
      border-top: var(--border);
      margin: 0;
    }

    
    .label {
      font-family: var(--font-mono);
      font-size: 11px;
      font-weight: 500;
      letter-spacing: .15em;
      text-transform: uppercase;
      color: var(--gray-40);
    }
    .display {
      font-family: var(--font-head);
      font-weight: 700;
      letter-spacing: 0;
      line-height: 1.05;
      color: var(--black);
    }
    .display em {
      font-style: normal;
      font-weight: 800;
    }
    .mono {
      font-family: var(--font-mono);
      font-size: 13px;
      color: var(--gray-60);
      line-height: 1.8;
    }

    
    nav {
      position: sticky;
      top: 0;
      z-index: 100;
      height: var(--nav-h);
      background: rgba(255,255,255,.94);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: var(--border);
    }
    .nav-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 100%;
    }
    .nav-logo {
      font-family: var(--font-head);
      font-size: 20px;
      font-weight: 700;
      letter-spacing: 0;
      color: var(--black);
    }
    .nav-logo sup {
      font-family: var(--font-mono);
      font-size: 9px;
      font-weight: 500;
      letter-spacing: .1em;
      color: var(--gray-40);
      vertical-align: super;
      margin-left: 3px;
      text-transform: uppercase;
    }
    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }
    .nav-links a {
      font-family: var(--font-mono);
      font-size: 12px;
      font-weight: 400;
      letter-spacing: .08em;
      color: var(--gray-60);
      padding: 8px 16px;
      border-left: var(--border);
      transition: all .18s ease;
    }
    .nav-links a:first-child { border-left: none; }
    .nav-links a:hover { background: var(--black); color: var(--white); }
    .nav-links a.cta {
      background: var(--black);
      color: var(--white);
      border-left: var(--border);
    }
    .nav-links a.cta:hover { background: var(--gray-80); }
    .nav-mob { display: none; font-family: var(--font-mono); font-size: 12px; color: var(--gray-60); }

    
    #hero {
      min-height: calc(100svh - var(--nav-h));
      display: grid;
      grid-template-rows: 1fr auto;
      border-bottom: var(--border);
    }
    .hero-main {
      display: grid;
      grid-template-columns: 1fr 1fr;
      border-bottom: var(--border);
    }
    .hero-left {
      padding: 80px 56px 80px 0;
      border-right: var(--border);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .hero-index {
      font-family: var(--font-mono);
      font-size: 10px;
      letter-spacing: .15em;
      color: var(--gray-40);
      text-transform: uppercase;
      margin-bottom: 40px;
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .hero-index::after {
      content: '';
      flex: 1;
      height: 1px;
      background: var(--gray-10);
    }
    .hero-h1 {
      font-size: clamp(52px, 6.5vw, 92px);
      margin-bottom: 32px;
    }
    .hero-h1 .line2 {
      display: block;
      font-style: normal;
      font-weight: 400;
      color: var(--gray-60);
    }
    .hero-desc {
      font-family: var(--font-mono);
      font-size: 14px;
      color: var(--gray-60);
      line-height: 1.85;
      max-width: 420px;
      margin-bottom: 40px;
    }
    .hero-actions {
      display: flex;
      gap: 0;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 24px;
      font-family: var(--font-mono);
      font-size: 13px;
      font-weight: 500;
      letter-spacing: .08em;
      text-transform: uppercase;
      border: var(--border-dk);
      cursor: crosshair;
      transition: all .18s ease;
    }
    .btn-filled {
      background: var(--black);
      color: var(--white);
      border-color: var(--black);
    }
    .btn-filled:hover { background: var(--gray-80); }
    .btn-ghost { background: var(--white); color: var(--black); border-left: none; }
    .btn-ghost:hover { background: var(--gray-05); }

    .hero-right {
      padding: 80px 0 80px 56px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }
    .hero-status {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 40px;
    }
    .status-dot {
      width: 7px; height: 7px;
      border-radius: 50%;
      background: var(--black);
      animation: blink 2s ease infinite;
    }
    .status-text {
      font-family: var(--font-mono);
      font-size: 11px;
      letter-spacing: .12em;
      text-transform: uppercase;
      color: var(--gray-60);
    }
    .hero-info-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 0;
      border: var(--border);
      flex: 1;
    }
    .hig-item {
      padding: 24px;
      border-right: var(--border);
      border-bottom: var(--border);
    }
    .hig-item:nth-child(2n) { border-right: none; }
    .hig-item:nth-last-child(-n+2) { border-bottom: none; }
    .hig-label {
      font-size: 11px;
      letter-spacing: .15em;
      text-transform: uppercase;
      color: var(--gray-40);
      margin-bottom: 8px;
      font-family: var(--font-mono);
    }
    .hig-value {
      font-family: var(--font-head);
      font-size: 24px;
      font-weight: 400;
      color: var(--black);
      line-height: 1.2;
    }
    .hero-socials {
      display: flex;
      gap: 0;
      border: var(--border);
      margin-top: 24px;
    }
    .hero-socials a {
      flex: 1;
      text-align: center;
      padding: 12px 8px;
      font-family: var(--font-mono);
      font-size: 10px;
      letter-spacing: .08em;
      text-transform: uppercase;
      color: var(--gray-60);
      border-right: var(--border);
      transition: all .18s ease;
    }
    .hero-socials a:last-child { border-right: none; }
    .hero-socials a:hover { background: var(--black); color: var(--white); }
    
    .hero-strip {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
    }
    .hs-item {
      padding: 20px 24px;
      border-right: var(--border);
      display: flex;
      align-items: center;
      gap: 12px;
    }
    .hs-item:last-child { border-right: none; }
    .hs-num {
      font-family: var(--font-head);
      font-size: 32px;
      font-weight: 400;
      line-height: 1;
    }
    .hs-txt {
      font-family: var(--font-mono);
      font-size: 12px;
      color: var(--gray-60);
      line-height: 1.5;
    }

    
    .marquee-wrap {
      overflow: hidden;
      border-bottom: var(--border);
      background: var(--white);
    }
    .marquee-inner {
      display: flex;
      width: max-content;
      animation: marquee 28s linear infinite;
    }
    .marquee-inner:hover { animation-play-state: paused; }
    .mi {
      display: inline-flex;
      align-items: center;
      gap: 0;
      padding: 14px 32px;
      font-family: var(--font-mono);
      font-size: 12px;
      letter-spacing: .10em;
      text-transform: uppercase;
      color: var(--gray-60);
      border-right: var(--border);
      white-space: nowrap;
      transition: background .15s;
    }
    .mi:hover { background: var(--black); color: var(--white); }

    
    .sec-head {
      display: grid;
      grid-template-columns: auto 1fr;
      align-items: end;
      gap: 32px;
      padding-block: 64px 48px;
      border-bottom: var(--border);
      margin-bottom: 0;
    }
    .sec-num {
      font-family: var(--font-head);
      font-size: 96px;
      font-weight: 400;
      line-height: 1;
      color: var(--gray-10);
      letter-spacing: 0;
      user-select: none;
    }
    .sec-titles .label { margin-bottom: 10px; }
    .sec-titles .display { font-size: clamp(32px, 4vw, 52px); }

    
    #about { border-bottom: var(--border); }
    .about-body {
      display: grid;
      grid-template-columns: 1fr 1fr;
    }
    .about-left {
      padding: 64px 56px 64px 0;
      border-right: var(--border);
    }
    .about-left p {
      font-family: var(--font-mono);
      font-size: 15px;
      color: var(--gray-60);
      line-height: 1.9;
      margin-bottom: 20px;
    }
    .about-left p:last-child { margin-bottom: 0; }
    .about-right {
      padding: 64px 0 64px 56px;
      display: flex;
      flex-direction: column;
      gap: 0;
    }
    .about-fact {
      display: grid;
      grid-template-columns: 120px 1fr;
      gap: 24px;
      align-items: start;
      padding: 18px 0;
      border-bottom: var(--border);
    }
    .about-fact:last-child { border-bottom: none; }
    .about-fact .key {
      font-family: var(--font-mono);
      font-size: 10px;
      letter-spacing: .12em;
      text-transform: uppercase;
      color: var(--gray-40);
      padding-top: 1px;
    }
    .about-fact .val {
      font-family: var(--font-mono);
      font-size: 14px;
      color: var(--gray-80);
      line-height: 1.6;
    }

    
    #skills { border-bottom: var(--border); }
    .skills-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      border-top: var(--border);
    }
    .skill-col {
      padding: 40px 32px;
      border-right: var(--border);
      transition: background .18s;
    }
    .skill-col:last-child { border-right: none; }
    .skill-col:hover { background: var(--gray-05); }
    .skill-col-num {
      font-family: var(--font-head);
      font-size: 11px;
      color: var(--gray-40);
      font-style: normal;
      margin-bottom: 20px;
    }
    .skill-col h3 {
      font-family: var(--font-head);
      font-size: 24px;
      font-weight: 400;
      color: var(--black);
      line-height: 1.2;
      margin-bottom: 16px;
    }
    .skill-col p {
      font-family: var(--font-mono);
      font-size: 13px;
      color: var(--gray-60);
      line-height: 1.8;
      margin-bottom: 24px;
    }
    .skill-tags { display: flex; flex-wrap: wrap; gap: 6px; }
    .stag {
      font-family: var(--font-mono);
      font-size: 11px;
      padding: 3px 8px;
      border: var(--border-dk);
      color: var(--gray-60);
      letter-spacing: .04em;
    }

    
    #techstack { border-bottom: var(--border); overflow: hidden; }
    .tech-list {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      border-top: var(--border);
    }
    .tech-item {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      gap: 8px;
      min-height: 190px;
      padding: 28px;
      border-right: var(--border);
      transition: background .18s, color .18s;
      cursor: crosshair;
    }
    .tech-item:last-child { border-right: none; }
    .tech-item:hover { background: var(--gray-05); }
    .tech-item:hover .ti-name { color: var(--black); }
    .tech-item:hover .ti-type { color: var(--gray-60); }
    .tech-item:hover .tech-logo { filter: none; opacity: 1; transform: translateY(-2px); }
    .ti-idx {
      font-family: var(--font-mono);
      font-size: 10px;
      font-weight: 700;
      color: var(--gray-40);
      margin-bottom: 6px;
    }
    .tech-logo {
      width: 38px;
      height: 38px;
      object-fit: contain;
      filter: grayscale(1) saturate(0) contrast(1.15);
      opacity: .82;
      transition: filter .18s ease, opacity .18s ease, transform .18s ease;
      margin-bottom: 10px;
    }
    .ti-name {
      font-family: var(--font-head);
      font-size: 20px;
      font-weight: 700;
      color: var(--black);
      margin-bottom: 4px;
      transition: color .18s;
    }
    .ti-type {
      font-family: var(--font-mono);
      font-size: 10px;
      letter-spacing: .08em;
      text-transform: uppercase;
      color: var(--gray-40);
      transition: color .18s;
    }
    
    .hig-value-role { font-style: normal; font-weight: 800; }
    .hig-value-school { font-size: 16px; }
    .float-slow { animation: float 6s ease-in-out infinite; }
    .float-late { animation: float 7s 1.5s ease-in-out infinite; }
    .mock-divider { height: 1px; background: var(--gray-10); }
    .quiz-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
    .quiz-btn { padding: 6px 10px; font-family: var(--font-mono); font-size: 9px; text-align: center; }
    .quiz-btn-prev { background: var(--white); border: var(--border-dk); color: var(--gray-40); }
    .quiz-btn-next { background: var(--black); color: var(--white); }
    .availability-label { margin-bottom: 16px; }
    .tech-list-2 {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      border-top: var(--border);
    }

    
    #projects { border-bottom: var(--border); }
    .projects-list { border-top: var(--border); }
    .project-entry {
      border-bottom: var(--border);
      display: grid;
      grid-template-columns: 56px 1fr 1fr;
      transition: background .2s;
    }
    .project-entry:last-child { border-bottom: none; }
    .project-entry:hover { background: var(--gray-05); }
    .pe-idx {
      font-family: var(--font-head);
      font-style: normal;
      font-size: 13px;
      color: var(--gray-40);
      padding: 48px 0 48px 24px;
      border-right: var(--border);
      display: flex;
      align-items: flex-start;
    }
    .pe-info {
      padding: 48px 48px 48px 40px;
      border-right: var(--border);
    }
    .pe-status {
      font-family: var(--font-mono);
      font-size: 9px;
      letter-spacing: .15em;
      text-transform: uppercase;
      color: var(--gray-40);
      border: var(--border-dk);
      display: inline-block;
      padding: 3px 10px;
      margin-bottom: 18px;
    }
    .pe-info h3 {
      font-family: var(--font-head);
      font-size: 30px;
      font-weight: 400;
      color: var(--black);
      line-height: 1.15;
      margin-bottom: 16px;
      letter-spacing: 0;
    }
    .pe-info h3 em { font-style: normal; font-weight: 800; }
    .pe-desc {
      font-family: var(--font-mono);
      font-size: 13px;
      color: var(--gray-60);
      line-height: 1.85;
      margin-bottom: 24px;
    }
    .pe-stack {
      display: flex;
      flex-wrap: wrap;
      gap: 6px;
      margin-bottom: 28px;
    }
    .pe-stack span {
      font-family: var(--font-mono);
      font-size: 12px;
      padding: 3px 10px;
      border: var(--border-dk);
      color: var(--gray-60);
    }
    .pe-features {
      padding-top: 20px;
      border-top: var(--border);
    }
    .pe-features .label { margin-bottom: 12px; }
    .pe-features li {
      font-family: var(--font-mono);
      font-size: 13px;
      color: var(--gray-60);
      line-height: 1.7;
      padding: 4px 0;
      border-bottom: var(--border);
      display: grid;
      grid-template-columns: 16px 1fr;
      gap: 8px;
    }
    .pe-features li::before { content: '—'; color: var(--gray-40); }
    .pe-features li:last-child { border-bottom: none; }

    
    .pe-visual {
      padding: 48px 40px 48px 0;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }
    .screenshot {
      background: var(--gray-05);
      border: var(--border-dk);
      overflow: hidden;
      position: relative;
    }
    .project-shot-grid {
      display: grid;
      gap: 14px;
    }
    .project-shot {
      margin: 0;
      background: var(--white);
      border: var(--border-dk);
      overflow: hidden;
      position: relative;
      filter: grayscale(1) saturate(0);
      transition: filter .2s ease, transform .2s ease, box-shadow .2s ease;
    }
    .project-shot:hover {
      filter: none;
      transform: translateY(-2px);
      box-shadow: 0 18px 44px rgba(0,0,0,.08);
    }
    .project-shot img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }
    .mobile-shots {
      grid-template-columns: repeat(2, minmax(0, 1fr));
      align-items: start;
    }
    .phone-shot {
      aspect-ratio: 9 / 18;
      border-radius: 24px;
    }
    .web-shots {
      grid-template-columns: 1fr;
    }
    .web-shot {
      aspect-ratio: 16 / 9;
      padding: 0;
      border-radius: 0;
    }
    .quiz-hero-preview {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      text-align: center;
      gap: 12px;
    }
    .quiz-preview-pill {
      border: var(--border-dk);
      padding: 6px 14px;
      font-size: 10px;
      font-weight: 700;
      color: var(--black);
    }
    .quiz-preview-title {
      font-size: clamp(22px, 3vw, 42px);
      font-weight: 800;
      line-height: 1.05;
      color: var(--black);
    }
    .quiz-preview-title strong {
      color: var(--gray-60);
      font-weight: 800;
    }
    .quiz-hero-preview p {
      max-width: 420px;
      font-size: 13px;
      color: var(--gray-60);
      line-height: 1.5;
    }
    .quiz-preview-btn {
      background: var(--black);
      color: var(--white);
      padding: 9px 22px;
      font-size: 10px;
      font-weight: 700;
    }
    .quiz-generator-preview {
      display: grid;
      grid-template-rows: auto 1fr;
      gap: 18px;
      background: var(--gray-05);
    }
    .quiz-preview-heading {
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 6px;
      text-align: center;
    }
    .quiz-preview-heading strong {
      font-size: 22px;
      line-height: 1.1;
    }
    .quiz-preview-heading span {
      font-size: 11px;
      color: var(--gray-60);
    }
    .quiz-preview-panel {
      display: grid;
      grid-template-columns: 1.8fr 1fr;
      gap: 16px;
      min-height: 0;
    }
    .quiz-dropzone,
    .quiz-settings {
      background: var(--white);
      border: var(--border-dk);
      display: flex;
    }
    .quiz-dropzone {
      align-items: center;
      justify-content: center;
      font-weight: 800;
      color: var(--gray-60);
      border-style: dashed;
    }
    .quiz-settings {
      flex-direction: column;
      gap: 10px;
      padding: 16px;
      font-size: 10px;
    }
    .quiz-settings strong {
      font-size: 13px;
      color: var(--black);
    }
    .quiz-settings span {
      color: var(--gray-60);
      font-weight: 700;
    }
    .quiz-range {
      height: 4px;
      background: linear-gradient(90deg, var(--black) 35%, var(--gray-20) 35%);
    }
    .quiz-levels {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 6px;
    }
    .quiz-levels b {
      border: var(--border-dk);
      padding: 7px 6px;
      text-align: center;
      font-size: 9px;
    }
    .quiz-levels b:nth-child(2) {
      background: var(--black);
      color: var(--white);
      border-color: var(--black);
    }
    .screenshot-bar {
      height: 32px;
      background: var(--gray-10);
      border-bottom: var(--border-dk);
      display: flex;
      align-items: center;
      padding: 0 12px;
      gap: 6px;
    }
    .sb-dot {
      width: 8px; height: 8px;
      border-radius: 50%;
      border: 1px solid var(--gray-20);
      background: var(--white);
    }
    .sb-title {
      margin-left: 8px;
      font-family: var(--font-mono);
      font-size: 9px;
      letter-spacing: .06em;
      color: var(--gray-40);
    }
    
    .qr-mockup-body {
      padding: 16px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .qr-topbar {
      display: grid;
      grid-template-columns: 1fr auto;
      align-items: center;
      padding: 10px 12px;
      background: var(--black);
    }
    .qr-topbar-title {
      font-family: var(--font-mono);
      font-size: 9px;
      color: var(--white);
      letter-spacing: .10em;
      text-transform: uppercase;
    }
    .qr-topbar-badge {
      font-family: var(--font-mono);
      font-size: 8px;
      color: var(--gray-40);
      background: var(--gray-80);
      padding: 2px 6px;
    }
    .qr-scan-area {
      background: var(--white);
      border: var(--border-dk);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding: 16px;
      gap: 10px;
    }
    .qr-grid {
      display: grid;
      grid-template-columns: repeat(9, 10px);
      grid-template-rows: repeat(9, 10px);
      gap: 2px;
    }
    .qr-cell {
      background: var(--gray-10);
      transition: background .2s;
    }
    .qr-cell.filled { background: var(--black); }
    .qr-scan-label {
      font-family: var(--font-mono);
      font-size: 8px;
      letter-spacing: .12em;
      text-transform: uppercase;
      color: var(--gray-40);
    }
    .qr-list { display: flex; flex-direction: column; gap: 4px; }
    .qr-row {
      display: grid;
      grid-template-columns: 20px 1fr auto;
      gap: 8px;
      align-items: center;
      padding: 6px 8px;
      background: var(--white);
      border: var(--border);
    }
    .qr-row-num { font-family: var(--font-mono); font-size: 8px; color: var(--gray-40); }
    .qr-row-bar { height: 6px; background: var(--gray-10); position: relative; }
    .qr-row-bar::after {
      content: '';
      position: absolute;
      inset: 0 auto 0 0;
      background: var(--gray-40);
    }
    .qr-row-bar.w80::after { width: 80%; }
    .qr-row-bar.w60::after { width: 60%; }
    .qr-row-bar.w95::after { width: 95%; }
    .qr-row-bar.w40::after { width: 40%; }
    .qr-row-status { font-family: var(--font-mono); font-size: 8px; color: var(--gray-40); }
    .qr-sessions {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 4px;
    }
    .qr-session {
      padding: 8px 10px;
      border: var(--border-dk);
      background: var(--white);
    }
    .qs-label { font-family: var(--font-mono); font-size: 8px; color: var(--gray-40); letter-spacing: .08em; text-transform: uppercase; margin-bottom: 4px; }
    .qs-count { font-family: var(--font-head); font-size: 20px; font-weight: 400; color: var(--black); }

    
    .quiz-mockup-body {
      padding: 16px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }
    .quiz-upload {
      border: 1px dashed var(--gray-20);
      background: var(--white);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      padding: 20px;
      gap: 8px;
    }
    .quiz-upload-icon {
      width: 32px; height: 32px;
      border: var(--border-dk);
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .quiz-upload-icon::before {
      content: '';
      width: 12px; height: 14px;
      border: 1.5px solid var(--gray-40);
      position: relative;
    }
    .quiz-upload-text { font-family: var(--font-mono); font-size: 9px; color: var(--gray-40); letter-spacing: .08em; text-transform: uppercase; }
    .quiz-file-item {
      display: grid;
      grid-template-columns: auto 1fr auto;
      gap: 10px;
      align-items: center;
      padding: 8px 10px;
      background: var(--white);
      border: var(--border-dk);
    }
    .qfi-icon { font-size: 14px; line-height: 1; color: var(--gray-60); }
    .qfi-name { font-family: var(--font-mono); font-size: 9px; color: var(--gray-60); }
    .qfi-check {
      width: 14px; height: 14px;
      background: var(--black);
      display: flex;
      align-items: center;
      justify-content: center;
    }
    .qfi-check::before { content: '✓'; color: var(--white); font-size: 8px; }
    .quiz-question { background: var(--white); border: var(--border-dk); padding: 10px 12px; }
    .qq-label { font-family: var(--font-mono); font-size: 8px; color: var(--gray-40); text-transform: uppercase; letter-spacing: .10em; margin-bottom: 6px; }
    .qq-text { font-family: var(--font-head); font-size: 12px; font-weight: 400; color: var(--black); line-height: 1.4; margin-bottom: 8px; }
    .qq-options { display: flex; flex-direction: column; gap: 4px; }
    .qq-opt {
      display: flex;
      align-items: center;
      gap: 6px;
      font-family: var(--font-mono);
      font-size: 9px;
      color: var(--gray-60);
      padding: 4px 6px;
      border: var(--border);
    }
    .qq-opt.correct { border-color: var(--gray-60); background: var(--gray-05); color: var(--black); font-weight: 500; }
    .qq-opt-bullet { width: 8px; height: 8px; border-radius: 50%; border: 1px solid var(--gray-20); flex-shrink: 0; }
    .qq-opt.correct .qq-opt-bullet { background: var(--black); border-color: var(--black); }
    .quiz-generate-btn {
      background: var(--black);
      color: var(--white);
      text-align: center;
      padding: 8px 12px;
      font-family: var(--font-mono);
      font-size: 9px;
      letter-spacing: .12em;
      text-transform: uppercase;
    }
    .screenshot-tag {
      font-family: var(--font-mono);
      font-size: 9px;
      letter-spacing: .10em;
      text-transform: uppercase;
      color: var(--gray-40);
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 8px 0;
    }
    .screenshot-tag::before, .screenshot-tag::after {
      content: '';
      flex: 1;
      height: 1px;
      background: var(--gray-10);
    }

    
    #services { border-bottom: var(--border); }
    .services-grid {
      display: grid;
      grid-template-columns: repeat(5, 1fr);
      border-top: var(--border);
    }
    .service-item {
      padding: 36px 28px;
      border-right: var(--border);
      transition: background .18s;
    }
    .service-item:last-child { border-right: none; }
    .service-item:hover { background: var(--black); }
    .service-item:hover .si-num { color: var(--gray-60); }
    .service-item:hover .si-name { color: var(--white); }
    .service-item:hover .si-desc { color: var(--gray-40); }
    .si-num {
      font-family: var(--font-head);
      font-style: normal;
      font-size: 11px;
      color: var(--gray-20);
      margin-bottom: 24px;
      transition: color .18s;
    }
    .si-name {
      font-family: var(--font-head);
      font-size: 18px;
      font-weight: 400;
      color: var(--black);
      line-height: 1.25;
      margin-bottom: 12px;
      transition: color .18s;
    }
    .si-desc {
      font-family: var(--font-mono);
      font-size: 10.5px;
      color: var(--gray-60);
      line-height: 1.75;
      transition: color .18s;
    }

    
    #principles { border-bottom: var(--border); }
    .principles-list { border-top: var(--border); }
    .principle-row {
      display: grid;
      grid-template-columns: 64px 220px 1fr auto;
      align-items: start;
      gap: 40px;
      padding: 36px 0;
      border-bottom: var(--border);
      transition: background .18s;
    }
    .principle-row:last-child { border-bottom: none; }
    .principle-row:hover { background: var(--gray-05); }
    .pr-num {
      font-family: var(--font-head);
      font-style: normal;
      font-size: 28px;
      font-weight: 400;
      color: var(--gray-20);
      line-height: 1;
    }
    .pr-name {
      font-family: var(--font-head);
      font-size: 22px;
      font-weight: 400;
      color: var(--black);
      line-height: 1.2;
    }
    .pr-desc {
      font-family: var(--font-mono);
      font-size: 11.5px;
      color: var(--gray-60);
      line-height: 1.8;
    }
    .pr-arrow {
      font-family: var(--font-mono);
      font-size: 16px;
      color: var(--gray-20);
      line-height: 1;
      align-self: center;
    }

    
    #contact { border-bottom: var(--border); }
    .contact-body {
      display: grid;
      grid-template-columns: 1fr 1fr;
      border-top: var(--border);
    }
    .contact-left {
      padding: 64px 56px 64px 0;
      border-right: var(--border);
    }
    .contact-cta {
      font-family: var(--font-head);
      font-size: clamp(36px, 4vw, 60px);
      font-weight: 400;
      color: var(--black);
      line-height: 1.1;
      letter-spacing: 0;
      margin-bottom: 32px;
    }
    .contact-cta em { font-style: normal; font-weight: 800; color: var(--black); }
    .contact-note {
      font-family: var(--font-mono);
      font-size: 12px;
      color: var(--gray-60);
      line-height: 1.8;
      margin-bottom: 40px;
    }
    .contact-links { display: flex; flex-direction: column; gap: 0; border: var(--border-dk); }
    .cl-item {
      display: grid;
      grid-template-columns: 90px 1fr auto;
      align-items: center;
      gap: 24px;
      padding: 18px 20px;
      border-bottom: var(--border);
      transition: background .18s;
    }
    .cl-item:last-child { border-bottom: none; }
    .cl-item:hover { background: var(--black); }
    .cl-item:hover .cl-type { color: var(--gray-60); }
    .cl-item:hover .cl-val { color: var(--white); }
    .cl-item:hover .cl-arrow { color: var(--gray-40); }
    .cl-type {
      font-family: var(--font-mono);
      font-size: 9px;
      letter-spacing: .12em;
      text-transform: uppercase;
      color: var(--gray-40);
      transition: color .18s;
    }
    .cl-val {
      font-family: var(--font-mono);
      font-size: 11.5px;
      color: var(--black);
      transition: color .18s;
    }
    .cl-arrow { font-size: 14px; color: var(--gray-20); transition: color .18s; }

    .contact-right { padding: 64px 0 64px 56px; }
    .avail-block {
      margin-bottom: 40px;
    }
    .avail-block .label { margin-bottom: 16px; }
    .avail-table { border: var(--border-dk); }
    .at-row {
      display: grid;
      grid-template-columns: 140px 1fr;
      border-bottom: var(--border);
    }
    .at-row:last-child { border-bottom: none; }
    .at-key {
      padding: 12px 16px;
      font-family: var(--font-mono);
      font-size: 10px;
      letter-spacing: .08em;
      text-transform: uppercase;
      color: var(--gray-40);
      border-right: var(--border);
      background: var(--gray-05);
    }
    .at-val {
      padding: 12px 16px;
      font-family: var(--font-mono);
      font-size: 11px;
      color: var(--black);
    }
    .at-val.live {
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .live-dot {
      width: 6px; height: 6px;
      border-radius: 50%;
      background: var(--black);
      animation: blink 2s ease infinite;
    }
    .big-cta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 24px;
      background: var(--black);
      color: var(--white);
      margin-top: 24px;
      transition: background .18s;
    }
    .big-cta:hover { background: var(--gray-80); }
    .big-cta span {
      font-family: var(--font-head);
      font-size: 20px;
      font-weight: 400;
    }
    .big-cta .arrow { font-size: 20px; }

    
    footer {
      background: var(--black);
      color: var(--white);
      padding-block: 48px 32px;
    }
    .footer-top {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 64px;
      padding-bottom: 40px;
      border-bottom: 1px solid var(--gray-80);
      margin-bottom: 28px;
    }
    .footer-logo-blk .fl {
      font-family: var(--font-head);
      font-size: 24px;
      font-weight: 400;
      color: var(--white);
      margin-bottom: 8px;
    }
    .footer-logo-blk p {
      font-family: var(--font-mono);
      font-size: 10px;
      letter-spacing: .08em;
      text-transform: uppercase;
      color: var(--gray-60);
      line-height: 1.6;
    }
    .footer-nav-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 8px;
    }
    .footer-nav-grid a {
      display: block;
      font-family: var(--font-mono);
      font-size: 10px;
      letter-spacing: .08em;
      text-transform: uppercase;
      color: var(--gray-60);
      padding: 8px 0;
      border-bottom: 1px solid var(--gray-80);
      transition: color .15s;
    }
    .footer-nav-grid a:hover { color: var(--white); }
    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
    }
    .footer-bottom p {
      font-family: var(--font-mono);
      font-size: 10px;
      letter-spacing: .06em;
      color: var(--gray-60);
    }

    
    @media (max-width: 1100px) {
      .skills-grid { grid-template-columns: repeat(2, 1fr); }
      .skills-grid .skill-col:nth-child(2) { border-right: none; }
      .skills-grid .skill-col:nth-child(3) { border-right: var(--border); border-top: var(--border); }
      .skills-grid .skill-col:nth-child(4) { border-right: none; border-top: var(--border); }
      .tech-list, .tech-list-2 { grid-template-columns: repeat(3, 1fr); }
      .tech-list .tech-item:nth-child(3n), .tech-list-2 .tech-item:nth-child(3n) { border-right: none; }
      .services-grid { grid-template-columns: repeat(3, 1fr); }
      .services-grid .service-item:nth-child(3n) { border-right: none; }
      .services-grid .service-item:nth-child(n+4) { border-top: var(--border); }
      .principle-row { grid-template-columns: 40px 180px 1fr; }
      .pr-arrow { display: none; }
    }
    @media (max-width: 900px) {
      .hero-main { grid-template-columns: 1fr; }
      .hero-left { border-right: none; border-bottom: var(--border); padding: 56px 0; }
      .hero-right { padding: 40px 0; }
      .hero-strip { grid-template-columns: repeat(3, 1fr); }
      .about-body { grid-template-columns: 1fr; }
      .about-left { border-right: none; border-bottom: var(--border); padding: 48px 0; }
      .about-right { padding: 40px 0; }
      .project-entry { grid-template-columns: 40px 1fr; }
      .pe-visual { grid-column: 2; padding: 0 24px 40px 40px; }
      .contact-body { grid-template-columns: 1fr; }
      .contact-left { border-right: none; border-bottom: var(--border); padding: 48px 0; }
      .contact-right { padding: 40px 0; }
      .footer-top { grid-template-columns: 1fr; gap: 32px; }
    }
    @media (max-width: 720px) {
      .nav-links { display: none; }
      .nav-mob { display: block; }
      .skills-grid { grid-template-columns: 1fr; }
      .skills-grid .skill-col { border-right: none; border-top: var(--border); }
      .tech-list, .tech-list-2 { grid-template-columns: repeat(2, 1fr); }
      .tech-list .tech-item:nth-child(2n), .tech-list-2 .tech-item:nth-child(2n) { border-right: none; }
      .services-grid { grid-template-columns: 1fr 1fr; }
      .principle-row { grid-template-columns: 32px 1fr; gap: 16px; }
      .pr-name { grid-column: 2; }
      .pr-desc { grid-column: 2; }
      .hero-info-grid { grid-template-columns: 1fr 1fr; }
      .mobile-shots { grid-template-columns: 1fr; }
      .phone-shot { aspect-ratio: 9 / 16; }
      .quiz-preview-panel { grid-template-columns: 1fr; }
      .web-shot { aspect-ratio: auto; min-height: 280px; padding: 22px; }
    }
    @media (max-width: 480px) {
      .hero-strip { grid-template-columns: 1fr; }
      .hs-item { border-right: none; border-bottom: var(--border); }
      .hs-item:last-child { border-bottom: none; }
      .services-grid { grid-template-columns: 1fr; }
      .footer-nav-grid { grid-template-columns: repeat(2, 1fr); }
    }