:root {
  --ink: #0a0a0a;
  --accent: #0a0a0a;
  --accent-dark: #0a0a0a;
  --paper: #f3f3f3;
  --card: #ffffff;
  --muted: #4b4b4b;
  --line: #cfcfcf;
}

* { box-sizing: border-box; }

html { min-height: 100%; }

body {
  min-height: 100vh;
  margin: 0;
  display: flex;
  flex-direction: column;
  background: var(--paper);
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  line-height: 1.6;
}

.navbar {
  width: 100%;
  min-height: 78px;
  padding: 0 4.5vw;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--ink);
  box-shadow: 0 2px 14px rgba(0, 0, 0, 0.18);
}

.logo { margin: 0; font-size: 1.55rem; letter-spacing: 0.03em; }
.navbar a { color: #fff; text-decoration: none; }
.nav-list { display: flex; gap: 1.1rem; margin: 0; padding: 0; list-style: none; }

.nav-list a {
  padding: 0.45rem 0;
  border-bottom: 2px solid transparent;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  transition: color 180ms ease, border-color 180ms ease;
}

.nav-list a:hover, .nav-list a:focus-visible { color: #d6d6d6; border-bottom-color: #d6d6d6; }

main { width: min(1120px, 100%); flex: 1; margin: 0 auto; padding: 4.5rem 1.5rem 5rem; }

.page-title {
  margin: 0 0 2.5rem;
  color: var(--ink);
  font-size: clamp(2.35rem, 5vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.045em;
  text-align: center;
  text-transform: uppercase;
}

.page-title::after { content: ""; display: block; width: 56px; height: 4px; margin: 1rem auto 0; border-radius: 999px; background: var(--accent); }

.about, .project, .resume, #contact-form, .stats-intro, .stats-note {
  width: 100%;
  max-width: 980px;
  margin: 0 auto;
  padding: clamp(1.5rem, 4vw, 3rem);
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--card);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.08);
}

.about { display: flex; align-items: center; gap: clamp(1.75rem, 4vw, 3.5rem); }
.about-image { flex: 0 0 min(38%, 320px); }
.about-image img, .project img { display: block; width: 100%; border-radius: 0; filter: grayscale(100%); box-shadow: 0 12px 26px rgba(0, 0, 0, 0.14); }
.about-text { max-width: 630px; font-size: 1.05rem; }
.about-text p:first-child { margin-top: 0; }
.about-text p:last-child { margin-bottom: 0; color: var(--muted); }
.about-text em { color: var(--accent-dark); font-weight: 600; }

.project { max-width: 620px; text-align: center; transition: transform 180ms ease, box-shadow 180ms ease; }
.project:hover { transform: translateY(-5px); box-shadow: 0 20px 42px rgba(0, 0, 0, 0.14); }
.project img { margin: 0 auto 1.5rem; max-width: 360px; }
.project-name { margin: 0; font-size: 1.45rem; font-weight: 700; }
.project-description, .entry-description, .entry-info { color: var(--muted); }
.project a, main > a { color: var(--accent-dark); font-weight: 700; }
.project a:hover, main > a:hover { color: var(--ink); }

.resume { max-width: 900px; }
.section + .section { margin-top: 2.5rem; padding-top: 2.25rem; border-top: 1px solid var(--line); }
.section-title { margin: 0 0 1.25rem; color: var(--accent-dark); font-size: 1.35rem; letter-spacing: 0.08em; text-transform: uppercase; }
.entry + .entry { margin-top: 1.75rem; }
.entry-title { margin: 0; color: var(--ink); font-size: 1.15rem; }
.entry-info, .entry-description { margin: 0.35rem 0 0; }
.course-list, .skill-list { margin: 0; padding-left: 1.25rem; }

#contact-form { max-width: 650px; display: grid; gap: 0.55rem; }
#contact-form label { margin-top: 0.6rem; color: var(--ink); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; }
#contact-form input, #contact-form textarea { width: 100%; padding: 0.8rem 0.9rem; border: 1px solid #bdc9d8; border-radius: 8px; background: #fff; color: var(--ink); font: inherit; }
#contact-form textarea { min-height: 150px; resize: vertical; }
#contact-form input:focus, #contact-form textarea:focus { outline: 3px solid rgba(0, 0, 0, 0.2); border-color: var(--accent); }
#contact-form input[type="submit"] { width: fit-content; margin-top: 1rem; padding: 0.75rem 1.25rem; border: 0; background: var(--accent); color: #fff; font-weight: 700; cursor: pointer; transition: background 180ms ease, transform 180ms ease; }
#contact-form input[type="submit"]:hover { background: var(--accent-dark); transform: translateY(-2px); }

.stats-intro { max-width: 860px; text-align: center; }
.stats-intro h2, .stats-note h2 { margin: 0; font-size: clamp(1.7rem, 3vw, 2.35rem); }
.stats-kicker { margin: 0 0 0.5rem; color: var(--accent-dark); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.13em; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; max-width: 980px; margin: 1.25rem auto; }
.stat-card { padding: 1.5rem; border: 1px solid var(--line); border-radius: 0; background: var(--card); box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06); }
.stat-label { margin: 0; color: var(--muted); font-size: 0.84rem; font-weight: 700; }
.stat-value { margin: 0.45rem 0; color: var(--accent-dark); font-size: 2rem; font-weight: 800; letter-spacing: -0.06em; }
.stat-card p:last-child { margin-bottom: 0; color: var(--muted); font-size: 0.9rem; }
.stats-note { max-width: 860px; text-align: center; }
.stats-note p { margin-bottom: 0; color: var(--muted); }

.footer { padding: 1.1rem 1.5rem; background: var(--ink); color: #fff; font-size: 0.9rem; text-align: center; }

@media (max-width: 820px) {
  .navbar { min-height: 0; padding: 1.15rem 1.25rem; flex-direction: column; gap: 0.9rem; }
  .nav-list { flex-wrap: wrap; justify-content: center; gap: 0.55rem 1rem; }
  .about { flex-direction: column; align-items: stretch; }
  .about-image { flex-basis: auto; }
  .about-image img { width: 100%; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) { .stats-grid { grid-template-columns: 1fr; } }