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

:root {
  --bg: #ffffff;
  --bg2: #f8f9fa;
  --bg3: #f1f3f4;
  --text: #202124;
  --muted: #5f6368;
  --hint: #9aa0a6;
  --border: rgba(0,0,0,0.08);
  --border2: rgba(0,0,0,0.2);
  --accent: #1a73e8;
  --accent-light: #e8f0fe;
  --r-md: 8px;
  --r-lg: 12px;
  --btn-color: #e8eaed;
  --btn-text-color: #3c3f43;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #202124;
    --bg2: #292a2d;
    --bg3: #171717;
    --text: #e8eaed;
    --muted: #9aa0a6;
    --hint: #5f6368;
    --border: rgba(255,255,255,0.08);
    --border2: rgba(255,255,255,0.18);
    --accent: #1a73e8;
    --accent-light: #1a2e4a;
    --r-md: 4px;
    --r-lg: 8px;
    --btn-color: #3c3f43;
    --btn-text-color: #e8eaed;
  }
}

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Mono', monospace;
  background: var(--bg3);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* LAYOUT */
.site { max-width: none; margin: 0 auto; padding: 0 24px 120px; }

/* NAV */
nav {
  display: flex; justify-content: space-between; align-items: center;
  padding: 32px 0 40px;
  border-bottom: 0.5px solid var(--border);
  margin-bottom: 80px;
}
.nav-logo { font-family: 'DM Serif Display', serif; font-size: 18px; letter-spacing: -0.5px; color: var(--text); text-decoration: none; }
.nav-links { display: flex; gap: 28px; list-style: none; }
.nav-links a { font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); text-decoration: none; transition: color 0.2s; }
.nav-links a:hover { color: var(--text); }

/* HERO */
#hero { padding: 0 0 80px; border-bottom: 0.5px solid var(--border); margin-bottom: 80px; }
.hero-label { font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin-bottom: 20px; }
#hero h1 { font-family: 'DM Serif Display', serif; font-size: clamp(42px, 8vw, 66px); line-height: 1.06; letter-spacing: -2px; margin-bottom: 28px; }
#hero h1 em { font-style: italic; color: var(--muted); }
#hero p { font-size: 14px; line-height: 1.85; color: var(--muted); max-width: 480px; margin-bottom: 36px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }

/* BUTTONS */
.btn-primary {
  background: var(--btn-color);
  color: var(--btn-text-color);
  padding: 11px 24px; border-radius: var(--r-md);
  font-family: 'DM Mono', monospace; font-size: 12px; letter-spacing: 0.06em;
  border: none; cursor: pointer; text-decoration: none; display: inline-block;
  transition: opacity 0.2s;
}
.btn-primary:hover { opacity: 0.8; }
.btn-ghost {
  background: transparent; color: var(--muted);
  padding: 11px 24px; border-radius: var(--r-md);
  font-family: 'DM Mono', monospace; font-size: 12px; letter-spacing: 0.06em;
  border: 0.5px solid var(--border2); cursor: pointer; text-decoration: none; display: inline-block;
  transition: color 0.2s, border-color 0.2s;
}
.btn-ghost:hover { color: var(--text); }

/* SECTION COMMON */
.section { padding: 0 0 80px; border-bottom: 0.5px solid var(--border); margin-bottom: 80px; }
.section:last-child { border-bottom: none; }
.section-header { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 36px; }
.section-title { font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--hint); }
.section-count { font-size: 11px; color: var(--hint); }

/* ABOUT */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
@media (max-width: 560px) { .about-grid { grid-template-columns: 1fr; } }
.about-bio { font-size: 14px; line-height: 1.9; color: var(--muted); }
.about-bio strong { color: var(--text); font-weight: 500; }
.about-bio p + p { margin-top: 16px; }
.about-meta { display: flex; flex-direction: column; gap: 12px; }
.meta-item {
  display: flex; flex-direction: column; gap: 4px;
  padding: 14px 16px; background: var(--bg2);
  border-radius: var(--r-md); border: 0.5px solid var(--border);
}
.meta-label { font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--hint); }
.meta-value { font-size: 13px; color: var(--text); }

/* PROJECTS */
.project-card {
  padding: 24px; border: 0.5px solid var(--border);
  border-radius: var(--r-lg); background: var(--bg);
  margin-bottom: 14px; cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  text-decoration: none; display: block;
}
.project-card:hover { border-color: var(--border2); background: var(--bg2); }
.project-card:hover .project-arrow { transform: translate(3px, -3px); color: var(--text); }
.project-top { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 12px; }
.project-name { font-family: 'DM Serif Display', serif; font-size: 21px; letter-spacing: -0.3px; color: var(--text); }
.project-year { font-size: 11px; color: var(--hint); margin-top: 3px; }
.project-arrow { font-size: 16px; color: var(--hint); transition: transform 0.2s, color 0.2s; }
.project-desc { font-size: 13px; line-height: 1.75; color: var(--muted); margin-bottom: 16px; }
.project-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 4px 10px; border-radius: 99px;
  background: var(--bg3); color: var(--muted);
  border: 0.5px solid var(--border);
}

/* SKILLS */
.skills-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
@media (max-width: 560px) { .skills-grid { grid-template-columns: repeat(2, 1fr); } }
.skill-group {
  padding: 18px 20px; background: var(--bg);
  border: 0.5px solid var(--border); border-radius: var(--r-lg);
}
.skill-group-title { font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin-bottom: 14px; }
.skill-list { display: flex; flex-direction: column; gap: 9px; }
.skill-item { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 8px; }
.skill-item::before { content: ''; width: 4px; height: 4px; border-radius: 50%; background: var(--border2); flex-shrink: 0; }

/* RESUME */
.resume-item {
  display: grid; grid-template-columns: 110px 1fr; gap: 24px;
  margin-bottom: 32px; padding-bottom: 32px;
  border-bottom: 0.5px solid var(--border);
}
.resume-item:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
@media (max-width: 480px) { .resume-item { grid-template-columns: 1fr; gap: 8px; } }
.resume-period { font-size: 11px; color: var(--hint); line-height: 1.6; padding-top: 2px; }
.resume-role { font-size: 14px; font-weight: 500; color: var(--text); margin-bottom: 4px; }
.resume-company { font-size: 12px; color: var(--accent); margin-bottom: 8px; }
.resume-desc { font-size: 13px; line-height: 1.75; color: var(--muted); }

/* CONTACT */
.contact-intro { font-size: 14px; line-height: 1.85; color: var(--muted); max-width: 440px; margin-bottom: 36px; }
.contact-form { display: flex; flex-direction: column; gap: 16px; max-width: 520px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 480px) { .form-row { grid-template-columns: 1fr; } }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label { font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--hint); }
.form-group input, .form-group textarea {
  background: var(--bg); border: 0.5px solid var(--border);
  border-radius: var(--r-md); padding: 10px 14px;
  font-family: 'DM Mono', monospace; font-size: 13px; color: var(--text);
  transition: border-color 0.2s; resize: vertical;
  -webkit-appearance: none;
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--border2); }
.form-group textarea { min-height: 110px; }
.form-footer { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; margin-top: 4px; }
.social-links { display: flex; gap: 20px; }
.social-links a { font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--hint); text-decoration: none; transition: color 0.2s; }
.social-links a:hover { color: var(--text); }

/* FOOTER */
footer { margin-top: 80px; padding-top: 32px; border-top: 0.5px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.footer-copy { font-size: 11px; color: var(--hint); }
.footer-back { font-size: 11px; color: var(--hint); text-decoration: none; transition: color 0.2s; }
.footer-back:hover { color: var(--text); }