:root {
    --white: #ffffff;
    --bg-soft: #f4f6fb;
    --navy: #0a1930;
    --navy-soft: #122444;
    --blue: #2b59ff;
    --blue-dim: #e8edff;
    --cyan: #22d3ee;
    --text: #0f1729;
    --text-soft: #5b6478;
    --text-faint: #8a93a6;
    --line: #e3e7f0;
    --line-soft: #eef1f7;
    --radius: 14px;
    --maxw: 1180px;
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: var(--font-body);
    color: var(--text);
    background: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
  }

  a {
    color: inherit;
    text-decoration: none;
  }

  ul {
    list-style: none;
  }

  img {
    max-width: 100%;
    display: block;
  }

  .wrap {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 32px;
  }

  h1,
  h2,
  h3 {
    font-family: var(--font-display);
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--navy);
  }

  :focus-visible {
    outline: 2px solid var(--blue);
    outline-offset: 3px;
    border-radius: 4px;
  }

  @media (prefers-reduced-motion: reduce) {
    * {
      animation-duration: 0.001ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: 0.001ms !important;
      scroll-behavior: auto !important;
    }
  }

  .eyebrow {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--blue);
    letter-spacing: .02em;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
  }

  .eyebrow::before {
    content: "";
    width: 7px;
    height: 7px;
    background: var(--blue);
    border-radius: 1px;
    display: inline-block;
    transform: rotate(45deg);
  }

  .btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 14.5px;
    padding: 10px 18px;
    border-radius: 10px;
    border: 1px solid var(--line);
    background: transparent;
    color: var(--navy);
    cursor: pointer;
    transition: border-color .15s ease, color .15s ease;
  }

  .btn:hover {
    border-color: var(--blue);
    color: var(--blue);
  }

  .btn-primary {
    background: var(--blue);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 1px 2px rgba(10, 25, 60, .08), 0 8px 20px -8px rgba(43, 89, 255, .55);
  }

  .btn-primary:hover {
    color: #fff;
    border-color: transparent;
    transform: translateY(-1px);
  }

  header.nav {
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, .86);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--line-soft);
  }

  .nav-inner {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 32px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 17px;
    color: var(--navy);
  }

  .logo .brace {
    color: var(--blue);
  }

  .nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .page-head {
    padding: 64px 0 40px;
    background:
      radial-gradient(560px 260px at 85% -20%, rgba(43, 89, 255, .08), transparent 60%),
      radial-gradient(420px 220px at 5% 0%, rgba(34, 211, 238, .08), transparent 60%);
    border-bottom: 1px solid var(--line);
  }

  .prompt-line {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--text-faint);
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 2px;
  }

  .prompt-line .path {
    color: var(--blue);
  }

  .cursor {
    display: inline-block;
    width: 8px;
    height: 16px;
    background: var(--cyan);
    margin-left: 4px;
    animation: blink 1.1s step-end infinite;
    border-radius: 1px;
  }

  @keyframes blink {
    50% {
      opacity: 0;
    }
  }

  .page-head h1 {
    font-size: clamp(32px, 4.6vw, 46px);
    line-height: 1.1;
  }

  .intro {
    padding: 64px 0 20px;
  }

  .intro-grid {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 44px;
    align-items: start;
  }

  .avatar {
    width: 220px;
    height: 220px;
    border-radius: 18px;
    /* background: radial-gradient(120% 140% at 0% 0%, #2b59ff 0%, #14265f 55%, #0a1930 100%); */
    background-image: url(/img/aboutme.jpg);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
  }

  .avatar::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(255, 255, 255, .06) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255, 255, 255, .06) 1px, transparent 1px);
    background-size: 22px 22px;
    opacity: .5;
  }

  .avatar .initials {
    position: absolute;
    bottom: 16px;
    left: 16px;
    font-family: var(--font-mono);
    font-size: 13px;
    color: #fff;
    background: rgba(255, 255, 255, .14);
    border: 1px solid rgba(255, 255, 255, .25);
    padding: 4px 10px;
    border-radius: 6px;
    backdrop-filter: blur(4px);
  }

  .intro-text h2 {
    font-size: 26px;
    margin-bottom: 14px;
  }

  .intro-text p {
    font-size: 16px;
    color: var(--text-soft);
    max-width: 640px;
    margin-bottom: 14px;
  }

  .intro-text p.placeholder {
    color: var(--text-faint);
    font-style: italic;
  }

  .intro-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
  }

  .meta-chip {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--navy);
    background: var(--bg-soft);
    border: 1px solid var(--line);
    padding: 7px 13px;
    border-radius: 8px;
  }

  .meta-chip.placeholder {
    color: var(--text-faint);
    font-style: italic;
  }

  .section {
    padding: 88px 0;
  }

  .section-head {
    max-width: 640px;
    margin-bottom: 52px;
  }

  .section-head p {
    font-size: 16px;
    color: var(--text-soft);
  }

  .timeline {
    position: relative;
    padding-left: 36px;
  }

  .timeline::before {
    content: "";
    position: absolute;
    left: 7px;
    top: 6px;
    bottom: 6px;
    width: 2px;
    background: var(--line);
  }

  .tl-item {
    position: relative;
    padding-bottom: 44px;
  }

  .tl-item:last-child {
    padding-bottom: 0;
  }

  .tl-item::before {
    content: "";
    position: absolute;
    left: -36px;
    top: 4px;
    width: 16px;
    height: 16px;
    background: #fff;
    border: 2px solid var(--blue);
    border-radius: 50%;
  }

  .tl-item.is-now::before {
    background: var(--blue);
    box-shadow: 0 0 0 4px var(--blue-dim);
  }

  .tl-date {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--blue);
    margin-bottom: 6px;
    display: block;
  }

  .tl-date.placeholder {
    color: var(--text-faint);
    font-style: italic;
  }

  .tl-item h3 {
    font-size: 19px;
    margin-bottom: 6px;
  }

  .tl-item h3.placeholder {
    color: var(--text-faint);
    font-style: italic;
    font-weight: 500;
  }

  .tl-item p {
    font-size: 15px;
    color: var(--text-soft);
    max-width: 600px;
  }

  .tl-item p.placeholder {
    color: var(--text-faint);
    font-style: italic;
  }

  .hobby-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
  }

  .hobby-card {
    background: #fff;
    padding: 28px 22px;
    text-align: left;
  }

  .hobby-card .tag {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--blue);
    background: var(--blue-dim);
    display: inline-block;
    padding: 3px 9px;
    border-radius: 6px;
    margin-bottom: 14px;
  }

  .hobby-card h3 {
    font-size: 17px;
    margin-bottom: 8px;
  }

  .hobby-card p {
    font-size: 13.5px;
    color: var(--text-soft);
  }

  .hobby-card p.placeholder {
    color: var(--text-faint);
    font-style: italic;
  }

  .note-box {
    border: 1px dashed var(--line);
    border-radius: var(--radius);
    padding: 20px 24px;
    background: var(--bg-soft);
    font-family: var(--font-mono);
    font-size: 13.5px;
    color: var(--text-soft);
    margin-top: 48px;
  }

  .note-box strong {
    color: var(--navy);
  }

  .back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--text-soft);
    margin-top: 8px;
    transition: color .15s ease, gap .15s ease;
  }

  .back-link:hover {
    color: var(--blue);
    gap: 11px;
  }

  .cta-final {
    background: var(--navy);
    background-image: radial-gradient(700px 320px at 50% -20%, rgba(43, 89, 255, .4), transparent 60%);
    padding: 80px 0;
    text-align: center;
  }

  .cta-final h2 {
    color: #fff;
    margin-bottom: 14px;
  }

  .cta-final p {
    color: rgba(255, 255, 255, .68);
    max-width: 520px;
    margin: 0 auto 30px;
    font-size: 16px;
  }

  footer {
    padding: 28px 0;
    border-top: 1px solid var(--line);
  }

  .footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 14px;
  }

  .footer-inner .copy {
    font-size: 13.5px;
    color: var(--text-faint);
    font-family: var(--font-mono);
  }

  .footer-links {
    display: flex;
    gap: 26px;
  }

  .footer-links a {
    font-size: 13.5px;
    color: var(--text-soft);
    transition: color .15s ease;
  }

  .footer-links a:hover {
    color: var(--blue);
  }

  @media (max-width:800px) {
    .intro-grid {
      grid-template-columns: 1fr;
    }

    .avatar {
      width: 140px;
      height: 140px;
    }

    .hobby-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }

  @media (max-width:520px) {

    .wrap,
    .nav-inner {
      padding-left: 20px;
      padding-right: 20px;
    }

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

    .page-head {
      padding: 48px 0 32px;
    }

    .intro {
      padding: 48px 0 8px;
    }

    .section {
      padding: 64px 0;
    }
  }