:root {
    --bg: #faf8f4;
    --surface: #ffffff;
    --surface2: #f0ece4;
    --accent: #3d4f08;
    --accent2: #0a5c55;
    --text: #0f0f0f;
    --muted: #3c3a37;
    --border: #c9c3b6;
  }

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

  html {
    scroll-behavior: smooth;
    font-size: 120%;
  }

  body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Noto Serif KR', serif;
    overflow-x: hidden;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }

  /* Nav */
  nav {
    position: fixed;
    top: 1.2rem;
    right: 2rem;
    z-index: 100;
    padding: 0;
  }
  .nav-links {
    display: flex;
    gap: 0.5rem;
    list-style: none;
    padding: 0.35rem;
    background: rgba(255,255,255,0.75);
    border: 1px solid rgba(201,195,182,0.7);
    border-radius: 999px;
    backdrop-filter: blur(8px);
  }
  .nav-links a {
    font-family: 'Space Mono', monospace;
    font-size: 0.82rem;
    text-decoration: none;
    color: var(--text);
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    transition: color 0.2s, background 0.2s;
    padding: 0.42rem 0.72rem;
    border-radius: 999px;
    background: transparent;
  }
  .nav-links a:hover { color: var(--accent); background: rgba(196,216,47,0.18); }

  /* Hero */
  .hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding: 0 4rem;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
  }
  .hero-grid-bg {
    position: absolute; inset: 0;
    background-image:
      linear-gradient(rgba(0,0,0,0.028) 1px, transparent 1px),
      linear-gradient(90deg, rgba(0,0,0,0.028) 1px, transparent 1px);
    background-size: 72px 72px;
    pointer-events: none;
  }
  .hero-left {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    padding-top: 4rem;
    z-index: 1;
  }
  .hero-tag {
    font-family: 'Space Mono', monospace;
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--accent2);
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: fadeUp 0.8s 0.2s forwards;
  }
  .hero-name {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(5rem, 9vw, 10rem);
    line-height: 0.9;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
    opacity: 0;
    animation: fadeUp 0.8s 0.4s forwards;
  }
  .hero-name span { color: var(--accent); }
  .hero-right {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    z-index: 1;
    opacity: 0;
    animation: fadeIn 1s 1s forwards;
  }
  .hero-subtitle {
    font-size: 1.3rem;
    color: var(--text);
    font-weight: 500;
    line-height: 1.75;
    max-width: 420px;
    text-align: center;
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeUp 0.8s 0.6s forwards;
  }
  .hero-contacts {
    display: flex; gap: 1.5rem; flex-wrap: wrap;
    justify-content: center;
    opacity: 0;
    animation: fadeUp 0.8s 0.8s forwards;
  }
  .contact-chip {
    display: flex; align-items: center; gap: 0.5rem;
    font-family: 'Noto Serif KR', serif;
    font-size: 0.95rem;
    color: var(--text);
    text-decoration: none;
    border: 1px solid var(--border);
    padding: 0.5rem 1rem;
    border-radius: 2px;
    transition: all 0.2s;
    letter-spacing: 0.05em;
  }
  .contact-chip:hover {
    color: var(--accent);
    border-color: var(--accent);
    background: rgba(196,216,47,0.15);
  }
  .hero-right {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-end;
    z-index: 1;
    opacity: 0;
    animation: fadeIn 1s 1s forwards;
  }
  .big-number {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(8rem, 16vw, 20rem);
    color: rgba(74,92,10,0.08);
    line-height: 1;
    user-select: none;
    position: absolute;
    right: -1rem;
    bottom: 5rem;
  }
  .hero-stack {
    border: 1px solid var(--border);
    padding: 2rem;
    background: var(--surface);
    position: relative;
    z-index: 2;
  }
  .hero-stack-title {
    font-family: 'Noto Serif KR', serif;
    font-size: 0.95rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    color: var(--accent);
    text-transform: none;
    margin-bottom: 1.2rem;
  }
  .stack-pills {
    display: flex; flex-wrap: wrap; gap: 0.5rem;
  }
  .pill {
    font-family: 'Noto Serif KR', serif;
    font-size: 0.92rem;
    font-weight: 500;
    padding: 0.3rem 0.75rem;
    background: var(--surface2);
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 2px;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
  }
  .pill i {
    font-size: 0.95rem;
  }
  .pill .fa-java { color: #f89820; }
  .pill .fa-js { color: #f7df1e; }
  .pill .fa-python { color: #3776ab; }
  .pill .fa-code { color: #659ad2; }
  .pill .fa-leaf { color: #6db33f; }
  .pill .fa-react { color: #61dafb; }
  .pill .fa-node-js { color: #339933; }
  .pill .fa-mobile-screen { color: #02569b; }
  .pill .fa-unity { color: #222; }
  .pill .fa-database { color: #4479a1; }
  .pill .fa-n { color: #000; }
  .pill .fa-figma { color: #f24e1e; }
  .pill .fa-slack { color: #4a154b; }
  .pill .fa-aws { color: #ff9900; }
  .pill .fa-github { color: #181717; }
  .pill .fa-git-alt { color: #f05032; }
  .pill .fa-linux { color: #fcc624; }
  .pill .fa-microchip { color: #0071c5; }
  .pill:hover {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
  }

  /* Section base */
  section {
    padding: 8rem 4rem;
  }
  .section-header {
    display: flex;
    align-items: baseline;
    gap: 2rem;
    margin-bottom: 5rem;
  }
  .section-num {
    font-family: 'Space Mono', monospace;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 0.15em;
  }
  .section-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    letter-spacing: 0.05em;
    line-height: 1;
  }
  .section-line {
    flex: 1;
    height: 2px;
    background: linear-gradient(90deg, var(--border), transparent);
    opacity: 0.9;
  }

  /* About */
  #about {
    background: var(--surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }
  .about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: start;
  }
  .about-text {
    font-size: 1.2rem;
    line-height: 2;
    color: var(--text);
  }
  .about-text strong { color: var(--accent); font-weight: 700; }
  .about-facts {
    display: flex; flex-direction: column; gap: 0;
  }
  .fact-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 0;
    border-bottom: 1px solid var(--border);
  }
  .fact-label {
    font-family: 'Noto Serif KR', serif;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text);
    text-transform: none;
    letter-spacing: 0;
  }
  .fact-value {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text);
  }

  /* Skills */
  #skills {
    background: var(--surface);
  }
  .skills-table {
    border: 1px solid var(--border);
    overflow: hidden;
  }
  .skills-row {
    display: grid;
    grid-template-columns: 160px 1fr 140px;
    border-bottom: 1px solid var(--border);
    transition: background 0.2s;
  }
  .skills-row:hover { background: var(--surface2); }
  .skills-row.header {
    background: var(--surface);
  }
  .skills-cell {
    padding: 1.15rem 1.5rem;
    font-size: 1.05rem;
    color: var(--text);
    border-right: 1px solid var(--border);
  }
  .skills-cell:last-child { border-right: none; }
  .skills-row.header .skills-cell {
    font-family: 'Noto Serif KR', serif;
    font-size: 0.95rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    text-transform: none;
    color: var(--text);
    background: var(--surface2);
  }
  .badge {
    display: inline-block;
    font-family: 'Noto Serif KR', serif;
    font-size: 0.88rem;
    font-weight: 600;
    padding: 0.2rem 0.6rem;
    border-radius: 2px;
    background: rgba(13,107,99,0.1);
    color: var(--accent2);
    border: 1px solid rgba(13,107,99,0.35);
  }

  /* Skills groups */
  .skills-groups {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
  }
  .skills-group {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
  }
  .skills-group-label {
    font-family: 'Noto Serif KR', serif;
    font-size: 1.2rem;
    font-weight: 900;
    color: var(--accent);
    letter-spacing: 0.02em;
  }
  .skills-row-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
    margin-top: 2.5rem;
  }
  .skills-row-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    margin-top: 2.5rem;
  }

  @media (max-width: 900px) {
    .skills-groups { grid-template-columns: 1fr; }
    .skills-row-2 { grid-template-columns: 1fr; }
    .skills-row-3 { grid-template-columns: 1fr; }
  }

  /* Projects */
  #projects { background: var(--bg); }
  .projects-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    border: 1.5px solid var(--border);
  }
  .project-item {
    border-bottom: 1.5px solid var(--border);
    overflow: hidden;
    transition: background 0.3s;
    border-left: 4px solid transparent;
  }
  .project-item:nth-child(1) { border-left-color: #6db33f; } /* We Game Player */
  .project-item:nth-child(2) { border-left-color: #4479a1; } /* 솟대쟁이 */
  .project-item:nth-child(3) { border-left-color: #c57a00; } /* around_you */
  .project-item:last-child { border-bottom: none; }
  .project-header {
    display: grid;
    grid-template-columns: 2.4fr 1fr 1fr;
    align-items: center;
    padding: 2rem 2.5rem;
    cursor: pointer;
    gap: 0.5rem 0.6rem;
  }
  .project-summary {
    grid-column: 1 / -1;
    font-size: 1.23rem;
    color: var(--muted);
    line-height: 1.6;
    padding-top: 0.3rem;
  }
  .project-item:hover .project-header { background: transparent; }
  .project-name {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 2.25rem;
    letter-spacing: 0.05em;
    display: flex;
    align-items: center;
    gap: 1rem;
    width: fit-content;
    padding: 0.2rem 0.6rem;
    border-radius: 8px;
  }
  .project-item:nth-child(1) .project-name { background: rgba(109,179,63,0.2); }
  .project-item:nth-child(2) .project-name { background: rgba(68,121,161,0.2); }
  .project-item:nth-child(3) .project-name { background: rgba(197,122,0,0.2); }
  .project-name .dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--muted);
    flex-shrink: 0;
    transition: background 0.2s;
  }
  .project-item:hover .project-name .dot { background: var(--accent); }
  .project-period {
    font-family: 'Noto Serif KR', serif;
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--muted);
    letter-spacing: 0.05em;
    justify-self: start;
  }
  .project-type {
    font-family: 'Noto Serif KR', serif;
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--accent2);
    text-align: left;
    letter-spacing: 0.05em;
    justify-self: start;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    position: relative;
    padding-right: 1.6rem;
    width: 15.5rem;
    min-width: 15.5rem;
  }
  .project-body {
    display: none;
    padding: 0 2.5rem 2.5rem;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    background: transparent;
  }
  .project-item.open .project-body { display: grid; }
  .project-item.open .project-header {
    border-bottom: 1.5px solid var(--border);
  }
  .project-item.open .project-body {
    background: transparent !important;
  }
  .project-section-label {
    font-family: 'Noto Serif KR', serif;
    font-size: 1.2rem;
    font-weight: 900;
    letter-spacing: 0;
    text-transform: none;
    color: var(--accent);
    margin-bottom: 0.8rem;
  }
  .project-desc {
    font-size: 1.1rem;
    line-height: 1.85;
    color: var(--text);
    margin-bottom: 1.8rem;
  }
  .project-tasks {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
  }
  .project-tasks li {
    font-size: 1.05rem;
    line-height: 1.65;
    color: var(--text);
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
  }
  .project-tasks li::before {
    content: '→';
    color: var(--accent);
    flex-shrink: 0;
    font-family: 'Space Mono', monospace;
    font-size: 0.9rem;
    margin-top: 0.15rem;
  }
  .project-stack-chips {
    display: flex; flex-wrap: wrap; gap: 0.4rem;
    margin-bottom: 1.5rem;
  }
  .project-chip {
    font-family: 'Noto Serif KR', serif;
    font-size: 0.88rem;
    font-weight: 600;
    padding: 0.25rem 0.6rem;
    background: rgba(196,216,47,0.2);
    border: 1px solid rgba(74,92,10,0.25);
    color: var(--accent);
    border-radius: 2px;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
  }
  .project-chip i {
    font-size: 0.9rem;
  }
  .project-chip .fa-leaf { color: #6db33f; }
  .project-chip .fa-database { color: #4479a1; }
  .project-chip .fa-aws { color: #ff9900; }
  .project-chip .fa-github { color: #181717; }
  .project-chip .fa-unity { color: #222; }
  .project-chip .fa-code { color: #659ad2; }
  .project-chip .fa-js { color: #f7df1e; }
  .project-chip .fa-mobile-screen { color: #02569b; }
  .project-chip .fa-android { color: #3ddc84; }
  .project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Noto Serif KR', serif;
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent2);
    text-decoration: none;
    border-bottom: 1px solid rgba(13,107,99,0.35);
    padding-bottom: 2px;
    margin-top: 1rem;
    transition: all 0.2s;
  }
  .project-link:hover {
    color: var(--accent);
    border-color: var(--accent);
  }
  .project-learned {
    font-size: 1.05rem;
    line-height: 1.85;
    color: var(--text);
    padding: 1rem 1.2rem;
    border-left: 2px solid var(--accent);
    background: rgba(196,216,47,0.12);
  }
  .expand-icon {
    font-family: 'Space Mono', monospace;
    font-size: 1.35rem;
    color: var(--text);
    transition: transform 0.3s;
    position: absolute;
    right: 0.45rem;
    top: 50%;
    transform: translateY(-50%);
    margin-left: 0;
  }
  .project-item.open .expand-icon { transform: translateY(-50%) rotate(45deg); color: var(--accent); }

  /* around_you: code modal */
  .codebtn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.75rem;
    padding: 0;
    font-family: 'Noto Serif KR', serif;
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent2);
    background: transparent;
    border: none;
    border-bottom: 1px solid rgba(13,107,99,0.35);
    cursor: pointer;
    transition: color 0.2s, border-color 0.2s, transform 0.05s;
    user-select: none;
  }
  .codebtn:hover { color: var(--accent); border-color: var(--accent); }
  .codebtn:active { transform: translateY(1px); }
  .codebtn .hint {
    font-family: 'Space Mono', monospace;
    font-size: 0.82rem;
    color: rgba(13,107,99,0.65);
    font-weight: 500;
  }

  .codemodal {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 2.5rem 1.25rem;
    z-index: 9999;
  }
  .codemodal.open { display: flex; }
  .codemodal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.65);
    backdrop-filter: blur(6px);
  }
  .codemodal__panel {
    position: relative;
    width: min(1080px, 96vw);
    max-height: min(78vh, 820px);
    /* keep code area dark, but make surrounding UI bright */
    background: rgba(250,250,250,0.92);
    border: 1px solid var(--border);
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    overflow: hidden;
  }
  .codemodal__topbar {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1.25rem;
    padding: 1.25rem 1.4rem;
    border-bottom: 1px solid var(--border);
    background: rgba(255,255,255,0.9);
  }
  .codemodal__title {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
  }
  .codemodal__title strong {
    font-family: 'Noto Serif KR', serif;
    font-size: 1.05rem;
    font-weight: 900;
    color: #101010;
  }
  .codemodal__title span {
    font-size: 0.95rem;
    color: rgba(20,20,20,0.65);
    line-height: 1.5;
  }
  .codemodal__close {
    border: 1px solid var(--border);
    background: rgba(255,255,255,0.9);
    color: #151515;
    font-family: 'Space Mono', monospace;
    font-size: 1rem;
    padding: 0.35rem 0.55rem;
    cursor: pointer;
    border-radius: 2px;
    transition: background 0.2s, border-color 0.2s;
    flex-shrink: 0;
  }
  .codemodal__close:hover { background: rgba(196,216,47,0.18); border-color: rgba(74,92,10,0.35); }

  .codemodal__body {
    display: grid;
    grid-template-columns: 360px 1fr;
    min-height: 420px;
  }
  .codefiles {
    border-right: 1px solid var(--border);
    background: rgba(255,255,255,0.92);
    overflow: auto;
  }
  .codefile {
    display: block;
    width: 100%;
    text-align: left;
    padding: 1rem 1.1rem;
    border: none;
    border-bottom: 1px solid rgba(0,0,0,0.07);
    background: transparent;
    cursor: pointer;
    transition: background 0.2s;
    color: #101010;
  }
  .codefile:hover { background: rgba(196,216,47,0.18); }
  .codefile.active { background: rgba(196,216,47,0.26); }
  .codefile .path {
    font-family: 'Space Mono', monospace;
    font-size: 0.86rem;
    color: rgba(10,10,10,0.82);
    margin-bottom: 0.35rem;
  }
  .codefile .desc {
    font-size: 0.95rem;
    color: rgba(20,20,20,0.66);
    line-height: 1.45;
  }

  .codeview {
    display: flex;
    flex-direction: column;
    min-width: 0;
  }
  .codeview__meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.9rem 1.1rem;
    border-bottom: 1px solid var(--border);
    background: rgba(255,255,255,0.9);
  }
  .codeview__meta .fileline {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    min-width: 0;
  }
  .codeview__meta .fileline .filename {
    font-family: 'Space Mono', monospace;
    font-size: 0.92rem;
    color: rgba(10,10,10,0.9);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .codeview__meta .fileline .note {
    font-size: 0.92rem;
    color: rgba(20,20,20,0.65);
  }

  pre.codeblock {
    margin: 0;
    padding: 1.1rem 1.1rem 1.2rem;
    overflow: auto;
    max-height: 52vh;
    font-family: 'Space Mono', monospace;
    font-size: 0.88rem;
    line-height: 1.6;
    color: rgba(255,255,255,0.92);
    background: rgba(12,12,12,0.92);
    white-space: pre-wrap;
    overflow-wrap: anywhere;
    word-break: break-word;
    tab-size: 2;
  }
  .tok-comment { color: #6a9955; }
  .tok-keyword { color: #c586c0; font-weight: 700; }
  .tok-string { color: #ce9178; }
  .tok-number { color: #b5cea8; }
  .tok-type { color: #4fc1ff; }
  .tok-func { color: #dcdcaa; }
  .tok-attr { color: #9cdcfe; }
  .tok-op { color: #d4d4d4; }

  @media (max-width: 980px) {
    .codemodal__body { grid-template-columns: 1fr; }
    .codefiles { max-height: 240px; border-right: none; border-bottom: 1px solid var(--border); }
    pre.codeblock { max-height: 44vh; }
  }

  /* Education & Certs */
  #education {
    background: var(--bg);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }
  .edu-cert-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
  }
  .edu-card {
    border: 1.5px solid var(--border);
    padding: 2.5rem;
    position: relative;
    overflow: hidden;
  }
  .edu-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2.5px;
    background: linear-gradient(90deg, var(--accent), var(--accent2));
  }
  .edu-school {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.8rem;
    letter-spacing: 0.05em;
    margin-bottom: 0.3rem;
  }
  .edu-major {
    font-family: 'Noto Serif KR', serif;
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent2);
    margin-bottom: 1.5rem;
    letter-spacing: 0;
  }
  .edu-meta {
    display: flex; flex-direction: column; gap: 0.5rem;
  }
  .edu-meta-item {
    display: flex; justify-content: space-between;
    font-size: 1.05rem;
    color: var(--text);
    padding: 0.4rem 0;
    border-bottom: 1px solid var(--border);
  }
  .edu-meta-item span:first-child { color: var(--muted); font-weight: 500; }
  .edu-meta-item span:last-child { color: var(--text); font-weight: 600; }

  .edu-activity {
    margin-top: 1.5rem;
    padding-top: 1.2rem;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }
  .edu-activity-row {
    display: flex;
    justify-content: space-between;
    font-size: 1.05rem;
    color: var(--text);
    padding: 0.4rem 0;
    border-bottom: 1px solid var(--border);
  }
  .edu-activity-row:last-child { border-bottom: none; }
  .edu-activity-row span:first-child { color: var(--muted); font-weight: 500; }
  .edu-activity-row span:last-child { color: var(--text); font-weight: 600; text-align: right; }

  .cert-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    border: 1.5px solid var(--border);
  }
  .cert-row {
    display: grid;
    grid-template-columns: 120px 1fr 140px;
    border-bottom: 1px solid var(--border);
    transition: background 0.2s;
  }
  .cert-row:last-child { border-bottom: none; }
  .cert-row:hover { background: var(--surface2); }
  .cert-cell {
    padding: 1rem 1.2rem;
    font-size: 1.02rem;
    color: var(--text);
    border-right: 1px solid var(--border);
    display: flex;
    align-items: center;
  }
  .cert-cell:last-child { border-right: none; }
  .cert-cell.date {
    font-family: 'Noto Serif KR', serif;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--muted);
  }
  .cert-status {
    font-family: 'Noto Serif KR', serif;
    font-size: 0.88rem;
    font-weight: 600;
    padding: 0.2rem 0.6rem;
    border-radius: 2px;
  }
  .cert-status.done {
    background: rgba(13,107,99,0.12);
    color: var(--accent2);
    border: 1px solid rgba(13,107,99,0.35);
  }
  .cert-status.pending {
    background: rgba(196,216,47,0.2);
    color: var(--accent);
    border: 1px solid rgba(74,92,10,0.25);
  }

  /* Footer */
  footer {
    padding: 4rem;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  .footer-name {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.5rem;
    letter-spacing: 0.1em;
    color: var(--accent);
  }
  .footer-note {
    font-family: 'Noto Serif KR', serif;
    font-size: 0.95rem;
    color: var(--text);
    letter-spacing: 0;
  }

  /* Scroll reveal */
  .reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
  }
  .reveal.visible {
    opacity: 1;
    transform: none;
  }

  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: none; }
  }
  @keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
  }

  /* Responsive */
  @media (max-width: 900px) {
    nav { top: 0.8rem; right: 1rem; }
    .hero { padding: 2rem; padding-top: 90px; }
    .hero-right { align-items: center; }
    section { padding: 5rem 2rem; }
    .about-grid { grid-template-columns: 1fr; gap: 3rem; }
    .edu-cert-grid { grid-template-columns: 1fr; gap: 2rem; }
    .project-header { grid-template-columns: 1fr; gap: 0.5rem; }
    .project-body { grid-template-columns: 1fr; }
    .nav-links { display: none; }
    footer { flex-direction: column; gap: 1rem; text-align: center; }
    .skills-row { grid-template-columns: 100px 1fr 110px; }
  }