:root {
  --bg: #18212f;
  --surface: #1f2937;
  --surface-2: #273445;
  --border: #3f4b5f;
  --text: #E6EDF3;
  --text-dim: #A5ADBA;
  --green: #3FB950;
  --amber: #F0883E;
  --blue: #58A6FF;
  --radius: 10px;
  --max: 1100px;
}
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      background: var(--bg);
      color: var(--text);
      font-family: 'Sora', sans-serif;
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

    .mono {
      font-family: 'JetBrains Mono', monospace;
    }

    a {
      color: inherit;
    }

    ::selection {
      background: var(--green);
      color: #0D1117;
    }

    /* Focus visibility */
    a:focus-visible,
    button:focus-visible {
      outline: 2px solid var(--green);
      outline-offset: 3px;
      border-radius: 4px;
    }

    .wrap {
      max-width: var(--max);
      margin: 0 auto;
      padding: 0 24px;
    }

/* Main Grid */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;

  background-image:
    linear-gradient(rgba(255,255,255,0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.07) 1px, transparent 1px);

  background-size: 40px 40px;
}

/* Small dots inside squares */
.bg-grid::before {
  content: "";
  position: absolute;
  inset: 0;

  background-image:
    radial-gradient(
      rgba(255,255,255,0.12) 1px,
      transparent 1px
    );

  background-size: 40px 40px;
  background-position: 20px 20px;
}

/* Soft premium glow */
.bg-grid::after {
  content: "";
  position: absolute;
  inset: 0;

  background:
    radial-gradient(
      circle at 20% 15%,
      rgba(63,185,80,0.08),
      transparent 35%
    ),
    radial-gradient(
      circle at 80% 75%,
      rgba(88,166,255,0.08),
      transparent 35%
    );
}

/* Tablet */
@media (max-width: 768px) {
  .bg-grid {
    background-size: 30px 30px;
  }

  .bg-grid::before {
    background-size: 30px 30px;
    background-position: 15px 15px;
  }
}

/* Mobile */
@media (max-width: 480px) {
  .bg-grid {
    background-size: 24px 24px;
  }

  .bg-grid::before {
    background-size: 24px 24px;
    background-position: 12px 12px;
  }
}    /* ===== Nav ===== */
    header {
      position: sticky;
      top: 0;
      z-index: 100;
      backdrop-filter: blur(12px);
      background: rgba(13, 17, 23, 0.75);
      border-bottom: 1px solid var(--border);
    }

    nav {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 18px 24px;
      max-width: var(--max);
      margin: 0 auto;
    }

    .logo {
      font-family: 'JetBrains Mono', monospace;
      font-weight: 700;
      font-size: 1.05rem;
      letter-spacing: -0.02em;
      display: flex;
      align-items: center;
      gap: 8px;
      text-decoration: none;
    }

    .logo .dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--green);
      box-shadow: 0 0 12px var(--green);
      flex-shrink: 0;
    }

    .nav-links {
      display: flex;
      gap: 32px;
      list-style: none;
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.85rem;
    }

    .nav-links a {
      text-decoration: none;
      color: var(--text-dim);
      transition: color .2s ease;
      position: relative;
    }

    .nav-links a:hover {
      color: var(--text);
    }

    .nav-links a::before {
      content: '';
    }

    .nav-cta {
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.82rem;
      text-decoration: none;

      background: var(--green);
      color: #000 !important;

      padding: 9px 18px;
      border-radius: 6px;
      border: 2px solid #000;

      font-weight: 700;
      white-space: nowrap;

      box-shadow: 4px 4px 0 #000;
      transition: all 0.15s ease;
    }

    .nav-cta:link,
    .nav-cta:visited {
      color: #000 !important;
    }

    .nav-cta:hover {
      color: #fff !important;
      background: #2ea043;

      transform: translate(-2px, -2px);

      box-shadow:
        6px 6px 0 #000,
        8px 8px 0 rgba(0, 0, 0, 0.25);
    }

    .nav-cta:active {
      transform: translate(0, 0);
      box-shadow: 2px 2px 0 #000;
    }

    .nav-toggle {
      display: none;
    }

    /* ===== Hero ===== */
    .hero {
      padding: 96px 0 80px;
      display: grid;
      grid-template-columns: 1.1fr 1fr;
      gap: 64px;
      align-items: center;
    }

    .eyebrow {
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.8rem;
      color: var(--green);
      letter-spacing: 0.08em;
      text-transform: uppercase;
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 20px;
    }

    .eyebrow::before {
      content: '';
      width: 24px;
      height: 1px;
      background: var(--green);
    }

    .hero h1 {
      font-size: clamp(2.4rem, 5.5vw, 3.8rem);
      font-weight: 700;
      letter-spacing: -0.02em;
      line-height: 1.08;
      margin-bottom: 20px;
    }

    .hero h1 .accent {
      color: var(--green);
    }

    .hero p.lead {
      font-size: 1.05rem;
      color: var(--text-dim);
      max-width: 46ch;
      margin-bottom: 32px;
    }

    .hero p.lead strong {
      color: var(--text);
      font-weight: 600;
    }

    .hero-actions {
      display: flex;
      gap: 14px;
      flex-wrap: wrap;
    }

    .btn {
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.88rem;
      font-weight: 600;
      text-decoration: none;
      padding: 13px 24px;
      border-radius: 7px;
      transition: transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease;
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    .btn-primary {
      background: var(--green);
      color: var(--bg);
    }

    .btn-primary:hover {
      transform: translateY(-1px);
      box-shadow: 0 6px 20px rgba(63, 185, 80, 0.3);
    }

    .btn-secondary {
      background: transparent;
      color: var(--text);
      border: 1px solid var(--border);
    }

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

    /* ===== Terminal hero card ===== */
    .terminal {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: 0 24px 60px -20px rgba(0, 0, 0, 0.6);
    }

    .terminal-bar {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 12px 16px;
      background: var(--surface-2);
      border-bottom: 1px solid var(--border);
    }

    .terminal-dot {
      width: 11px;
      height: 11px;
      border-radius: 50%;
    }

    .terminal-dot.red {
      background: #FF5F56;
    }

    .terminal-dot.yellow {
      background: #FFBD2E;
    }

    .terminal-dot.green {
      background: #27C93F;
    }

    .terminal-title {
      margin-left: 8px;
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.75rem;
      color: var(--text-dim);
    }

    .terminal-body {
      padding: 24px;
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.85rem;
      min-height: 340px;
    }

    .terminal-line {
      display: flex;
      gap: 10px;
      margin-bottom: 6px;
      flex-wrap: wrap;
    }

    .prompt {
      color: var(--green);
      flex-shrink: 0;
    }

    .cmd {
      color: var(--text);
    }

    .term-key {
      color: var(--blue);
    }

    .term-string {
      color: var(--amber);
    }

    .term-punct {
      color: var(--text-dim);
    }

    .term-num {
      color: #A5D6FF;
    }

    .term-bool {
      color: #FF7B72;
    }

    .term-comment {
      color: var(--text-dim);
    }

    .status-line {
      margin-top: 14px;
      padding-top: 14px;
      border-top: 1px dashed var(--border);
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 0.78rem;
    }

    .status-pill {
      background: rgba(63, 185, 80, 0.12);
      color: var(--green);
      border: 1px solid rgba(63, 185, 80, 0.3);
      padding: 3px 9px;
      border-radius: 5px;
      font-weight: 700;
    }

    .cursor {
      display: inline-block;
      width: 7px;
      height: 1.1em;
      background: var(--green);
      margin-left: 2px;
      animation: blink 1s steps(1) infinite;
      vertical-align: middle;
    }

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

    /* ===== Section shared ===== */
    section {
      padding: 90px 0;
      border-top: 1px solid var(--border);
    }

    .section-head {
      margin-bottom: 48px;
      max-width: 60ch;
    }

    .section-eyebrow {
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.78rem;
      color: var(--green);
      text-transform: uppercase;
      letter-spacing: 0.1em;
      margin-bottom: 12px;
      display: block;
    }

    .section-head h2 {
      font-size: clamp(1.8rem, 4vw, 2.6rem);
      font-weight: 700;
      letter-spacing: -0.01em;
      margin-bottom: 14px;
    }

    .section-head p {
      color: var(--text-dim);
      font-size: 1rem;
    }

    /* ===== About ===== */
    .about-grid {
      display: grid;
      grid-template-columns: 1.3fr 1fr;
      gap: 56px;
      align-items: start;
    }

    .about-text p {
      color: var(--text-dim);
      margin-bottom: 18px;
      font-size: 1rem;
    }

    .about-text strong {
      color: var(--text);
    }

    .stack-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 24px;
    }

    .stack-card h3 {
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.85rem;
      color: var(--text-dim);
      text-transform: uppercase;
      letter-spacing: 0.08em;
      margin-bottom: 18px;
      font-weight: 600;
    }

    .stack-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .stack-list li {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.85rem;
      padding-bottom: 12px;
      border-bottom: 1px solid var(--border);
    }

    .stack-list li:last-child {
      border-bottom: none;
      padding-bottom: 0;
    }

    .stack-tag {
      font-size: 0.7rem;
      padding: 2px 8px;
      border-radius: 4px;
      text-transform: uppercase;
      letter-spacing: 0.05em;
      font-weight: 700;
    }

    .stack-tag.core {
      background: rgba(63, 185, 80, 0.12);
      color: var(--green);
      border: 1px solid rgba(63, 185, 80, 0.3);
    }

    .stack-tag.learning {
      background: rgba(240, 136, 62, 0.12);
      color: var(--amber);
      border: 1px solid rgba(240, 136, 62, 0.3);
    }

    /* ===== Projects ===== */
    .endpoint-list {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .endpoint-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      transition: border-color .2s ease;
    }

    .endpoint-card:hover {
      border-color: var(--green);
    }

    .endpoint-head {
      display: flex;
      align-items: center;
      gap: 14px;
      padding: 18px 22px;
      flex-wrap: wrap;
    }

    .method {
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.75rem;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: 5px;
      letter-spacing: 0.04em;
    }

    .method.get {
      background: rgba(63, 185, 80, 0.12);
      color: var(--green);
      border: 1px solid rgba(63, 185, 80, 0.3);
    }

    .method.post {
      background: rgba(88, 166, 255, 0.12);
      color: var(--blue);
      border: 1px solid rgba(88, 166, 255, 0.3);
    }

    .endpoint-path {
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.95rem;
      font-weight: 600;
    }

    .endpoint-status {
      margin-left: auto;
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.72rem;
      color: var(--text-dim);
    }

    .endpoint-body {
      padding: 0 22px 22px;
    }

    .endpoint-body h3 {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .endpoint-body p {
      color: var(--text-dim);
      font-size: 0.95rem;
      margin-bottom: 16px;
      max-width: 60ch;
    }

    .endpoint-tags {
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
      margin-bottom: 16px;
    }

    .endpoint-tags span {
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.72rem;
      color: var(--text-dim);
      border: 1px solid var(--border);
      padding: 3px 9px;
      border-radius: 4px;
    }

    .endpoint-links {
      display: flex;
      gap: 18px;
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.82rem;
    }

    .endpoint-links a {
      text-decoration: none;
      color: var(--blue);
      border-bottom: 1px solid transparent;
      transition: border-color .15s ease;
    }

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

    .endpoint-links .disabled {
      color: var(--text-dim);
      cursor: default;
    }

    /* ===== Experience / changelog ===== */
    .changelog {
      border-left: 2px solid var(--border);
      margin-left: 8px;
    }

    .change-entry {
      position: relative;
      padding: 0 0 40px 32px;
    }

    .change-entry:last-child {
      padding-bottom: 0;
    }

    .change-entry::before {
      content: '';
      position: absolute;
      left: -7px;
      top: 4px;
      width: 12px;
      height: 12px;
      border-radius: 50%;
      background: var(--bg);
      border: 2px solid var(--green);
    }

    .change-meta {
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.78rem;
      color: var(--text-dim);
      margin-bottom: 6px;
      display: flex;
      gap: 10px;
      flex-wrap: wrap;
      align-items: center;
    }

    .change-meta .tag {
      background: var(--surface);
      border: 1px solid var(--border);
      padding: 2px 8px;
      border-radius: 4px;
      color: var(--amber);
      font-weight: 600;
      font-size: 0.7rem;
      text-transform: uppercase;
    }

    .change-entry h3 {
      font-size: 1.15rem;
      font-weight: 700;
      margin-bottom: 8px;
    }

    .change-entry h3 span {
      color: var(--text-dim);
      font-weight: 400;
      font-size: 0.95rem;
    }

    .change-entry ul {
      list-style: none;
      color: var(--text-dim);
      font-size: 0.95rem;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .change-entry ul li {
      padding-left: 18px;
      position: relative;
    }

    .change-entry ul li::before {
      content: '+';
      position: absolute;
      left: 0;
      color: var(--green);
      font-family: 'JetBrains Mono', monospace;
    }

    /* ===== Education + Awards ===== */
    .two-col {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 32px;
    }

    .info-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 26px;
    }

    .info-card h3 {
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.8rem;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--green);
      margin-bottom: 20px;
    }

    .edu-item {
      margin-bottom: 18px;
      padding-bottom: 18px;
      border-bottom: 1px solid var(--border);
    }

    .edu-item:last-child {
      margin-bottom: 0;
      padding-bottom: 0;
      border-bottom: none;
    }

    .edu-item h4 {
      font-size: 1rem;
      font-weight: 600;
      margin-bottom: 4px;
    }

    .edu-item p {
      font-size: 0.85rem;
      color: var(--text-dim);
    }

    .award-list {
      list-style: none;
      display: flex;
      flex-direction: column;
      gap: 14px;
    }

    .award-list li {
      font-size: 0.92rem;
      color: var(--text-dim);
      padding-left: 22px;
      position: relative;
    }

    .award-list li::before {
      content: '\2605';
      position: absolute;
      left: 0;
      color: var(--amber);
      font-size: 0.85rem;
    }

    /* ===== Contact ===== */
    .contact-section {
      text-align: center;
    }

    .contact-section .section-head {
      margin: 0 auto 40px;
      text-align: center;
    }

    .contact-grid {
      display: flex;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
    }

    .contact-card {
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 24px 32px;
      text-decoration: none;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: 10px;
      min-width: 180px;
      transition: border-color .2s ease, transform .2s ease;
    }

    .contact-card:hover {
      border-color: var(--green);
      transform: translateY(-3px);
    }

    .contact-card .label {
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.72rem;
      color: var(--text-dim);
      text-transform: uppercase;
      letter-spacing: 0.08em;
    }

    .contact-card .value {
      font-weight: 600;
      font-size: 0.95rem;
      word-break: break-all;
    }

    /* ===== Footer ===== */
    footer {
      border-top: 1px solid var(--border);
      padding: 32px 0;
      text-align: center;
      font-family: 'JetBrains Mono', monospace;
      font-size: 0.8rem;
      color: var(--text-dim);
    }

    footer .dot {
      color: var(--green);
    }

    /* ===== Reduced motion ===== */
    @media (prefers-reduced-motion: reduce) {
      html {
        scroll-behavior: auto;
      }

      .cursor {
        animation: none;
      }

      * {
        transition: none !important;
      }
    }

    /* ===== Responsive ===== */
    @media (max-width: 860px) {
      .hero {
        grid-template-columns: 1fr;
        gap: 48px;
        padding-top: 48px;
      }

      .about-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .two-col {
        grid-template-columns: 1fr;
      }

      .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        padding: 20px 24px;
        gap: 18px;
        display: none;
      }

      .nav-links.open {
        display: flex;
      }

      .nav-toggle {
        display: flex;
        background: none;
        border: 1px solid var(--border);
        border-radius: 6px;
        color: var(--text);
        padding: 8px 10px;
        cursor: pointer;
        font-family: 'JetBrains Mono', monospace;
      }

      nav {
        position: relative;
      }

      section {
        padding: 64px 0;
      }

      .terminal-body {
        font-size: 0.78rem;
        min-height: auto;
      }
    }

    @media (max-width: 480px) {
      .hero-actions {
        flex-direction: column;
      }

      .btn {
        justify-content: center;
        width: 100%;
      }

      .contact-grid {
        flex-direction: column;
        align-items: stretch;
      }
    }