:root {
        --bg: #ffffff;
        --text: #0f172a; /* slate-900 */
        --muted: #475569; /* slate-600 */
        --accent: #2563eb; /* blue-600 */
        --card: #f8fafc; /* slate-50 */
        --ring: rgba(37, 99, 235, 0.25);
        --shadow: 0 10px 30px rgba(2, 6, 23, 0.08);
        --header-h: 64px;
      }
      body.dark-mode {
        --bg: #0b1020;
        --text: #e5e7eb;
        --muted: #94a3b8;
        --accent: #60a5fa;
        --card: #0f172a;
        --ring: rgba(96, 165, 250, 0.25);
        --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
      }

      /* Global reset */
      * { box-sizing: border-box; }
      html, body { height: 100%; }
      body {
        margin: 0;
        font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto,
          Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
        background: var(--bg);
        color: var(--text);
        line-height: 1.6;
        scroll-behavior: smooth;
        padding-top: var(--header-h);
      }

      /* Header */
      /* Full-width header bar */
      .site-header {
        position: fixed;   /* sticks to top while scrolling */
        top: 0;
        z-index: 1000;
        width: 100%;
        background: color-mix(in oklab, var(--bg) 92%, transparent);
        backdrop-filter: saturate(160%) blur(10px);
        border-bottom: 1px solid color-mix(in oklab, var(--text) 8%, transparent); /* full-width line */
      }

      /* Inner row aligned to content width */
      .header-inner {
        width: 70%;
        margin: 0 auto;
        display: flex;
        justify-content: space-between;
        align-items: center;
        height: var(--header-h);
      }

      /* Link baseline styles */
      #header-name { font-weight: 700; letter-spacing: .2px; font-size: 1.05rem; }
      .site-header a { color: inherit; text-decoration: none; }
      .header-box { display: flex; gap: 20px; align-items: center; }

      /* Colored underline animation */
      .header-text {
        position: relative;
        padding-bottom: 5px;
        display: inline-block; /* predictable ::after width */
      }

      .header-text::after {
        content: "";
        position: absolute;
        left: 0; bottom: 0;
        width: 100%; height: 1.75px;
        background: linear-gradient(90deg, rgba(238,174,202,1) 0%, rgba(148,187,233,1) 100%);
        transform: scaleX(0);
        transform-origin: left;
        transition: transform .3s ease;
      }

      /* Show underline on hover and when active */
      .header-box a:hover .header-text::after,
      .header-text.active::after {
        transform: scaleX(1);
      }

      /* Optional color accent when hovered/active */
      .header-box a:hover .header-text,
      .header-text.active {
        color: var(--accent);
      }

      #darkmode {
        border: 0;
        background: transparent;
        color: var(--text);
        font-size: 1.05rem;
        cursor: pointer;
        padding: 6px 8px;
        border-radius: 10px;
      }
      #darkmode:focus-visible { outline: 2px solid var(--ring); outline-offset: 2px; }

      /* Centered content: 70% width */
      .container { width: 70%; margin-inline: auto; }
      @media (max-width: 1200px) { 
        .container { width: min(90%, 900px); } 
      .header-inner {width: 92%; } }

      /* Section wrappers */
      section { padding: 72px 0; scroll-margin-top: calc(var(--header-h) + 1px); }
      .section-title {
        font-size: clamp(1.15rem, 0.8rem + 1.2vw, 1.5rem);
        letter-spacing: 0.3px;
        opacity: 0.9;
        margin-bottom: 18px;
      }

      /* Smooth reveal */
      .reveal { opacity: 0; transform: translateY(18px); transition: all 600ms ease; }
      .reveal.show { opacity: 1; transform: translateY(0); }

      /* MAIN / HERO */
      .hero {
        display: grid;
        grid-template-columns: 1.2fr 1fr;
        gap: 32px;
        align-items: center;
        min-height: clamp(520px, 58vh, 720px);
        padding: 0 4% 0 4%;
      }
      .hero h1 {
        font-size: clamp(2rem, 1.2rem + 3vw, 3rem);
        line-height: 1.15;
        margin: 0 0 12px;
      }
      .hero .subtitle { color: var(--muted); margin-bottom: 18px; }
      .hero .pill {
        display: inline-flex; align-items: center; gap: 10px;
        background: color-mix(in oklab, var(--accent) 12%, var(--card));
        border: 1px solid color-mix(in oklab, var(--accent) 22%, transparent);
        padding: 8px 12px; border-radius: 999px; font-size: 0.9rem;
      }
      .hero-ctas { display: flex; gap: 12px; margin-top: 18px; flex-wrap: wrap; }
      .btn {
        display: inline-flex; align-items: center; gap: 10px;
        padding: 10px 14px; border-radius: 12px; text-decoration: none; color: var(--text);
        border: 1px solid color-mix(in oklab, var(--text) 14%, transparent);
        background: var(--card); box-shadow: var(--shadow);
        transition: transform .15s ease, box-shadow .2s ease, border-color .2s ease;
      }
      .btn:hover { transform: translateY(-1px); box-shadow: 0 14px 32px rgba(2, 6, 23, 0.1); }
      .btn.primary { background: var(--accent); color: white; border-color: var(--accent); }

      .hero .avatar-wrap { justify-self: center; }
      .avatar {
        width: min(340px, 38vw); aspect-ratio: 1/1; border-radius: 24px;
        object-fit: cover; display: block; box-shadow: var(--shadow);
        border: 1px solid color-mix(in oklab, var(--text) 10%, transparent);
        transition: transform .25s ease;
        border-radius: 50%;
      }
      .avatar:hover { transform: translateY(-2px) scale(1.01); }
      @media (max-width: 900px) { .hero {padding: 0;} }

      /* SKILLS */
      .skills-grid {
        display: grid;
        grid-template-columns: repeat(12, 1fr);
        gap: 16px;
      }
      .skill-card {
        grid-column: span 6; /* 2 per row on wide; collapses on mobile */
        background: var(--card);
        border: 1px solid color-mix(in oklab, var(--text) 10%, transparent);
        border-radius: 16px;
        padding: 18px;
        box-shadow: var(--shadow);
        transition: transform .15s ease;
      }
      .skill-card:hover { transform: translateY(-2px); }
      .skill-card h3 { margin: 0 0 10px; font-size: 1.05rem; }
      .chips { display: flex; flex-wrap: wrap; gap: 10px; }
      .chip {
        display: inline-flex; align-items: center; gap: 8px;
        padding: 6px 10px; border-radius: 999px; font-size: 0.9rem;
        border: 1px dashed color-mix(in oklab, var(--text) 16%, transparent);
        background: color-mix(in oklab, var(--card) 85%, transparent);
        white-space: nowrap;
      }
      .chip i { opacity: 0.9; }
      @media (max-width: 900px) { .skill-card { grid-column: span 12; } }

      /* PROJECTS */
      .projects-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 24px;
      }
      .project-card {
        background: var(--card);
        border: 1px solid color-mix(in oklab, var(--text) 10%, transparent);
        border-radius: 16px; overflow: hidden; box-shadow: var(--shadow);
        transition: transform .2s ease, box-shadow .2s ease;
        overflow: hidden;
        box-shadow: var(--shadow);
        display: flex;
        flex-direction: column;
      }
      .project-card:hover { transform: translateY(-3px); box-shadow: 0 16px 36px rgba(2,6,23,.14); }
      .project-thumb { display: block; width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
      .project-body { padding: 14px 16px 18px; }
      .project-title { font-weight: 650; margin: 0 0 6px; }
      .project-meta { color: var(--muted); font-size: 0.95rem; }
      .project-links { display: flex; gap: 12px; margin-top: 10px; }
      .project-links a { font-size: 0.92rem; }
      @media (max-width: 900px) { 
        .project-card { 
          grid-template-columns: 1fr;
          gap: 16px;
        }
        .project-card {
          border-radius: 12px;
        }
      
        .project-body {
          padding: 14px;
        }
      
        .project-title {
          font-size: 1.1rem;
        }
    
    }

      /* CONTACT */
      .contact-wrap {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 18px; align-items: start;
      }
      .contact-card {
        background: var(--card);
        border: 1px solid color-mix(in oklab, var(--text) 10%, transparent);
        border-radius: 18px; padding: 18px; box-shadow: var(--shadow);
      }
      .contact-card h3 { margin-top: 0; }
      .contact-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 8px; }
      .contact-actions .btn { font-weight: 600; }
      .socials { display: flex; gap: 12px; margin-top: 8px; }
      .socials a { color: var(--text); font-size: 1.15rem; }
      .contact-note { color: var(--muted); font-size: .95rem; margin-top: 6px; }
      @media (max-width: 900px) { .contact-wrap { grid-template-columns: 1fr; } }

      footer { padding: 48px 0 24px; color: var(--muted); text-align: center; font-size: .92rem; }

      /* Utility */
      .muted { color: var(--muted); }
      .spacer { height: 6px; }
      .sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }