:root {
  --bg: #f7f7f5;
  --surface: #ffffff;
  --text: #1c1c1a;
  --muted: #5f5f5a;
  --border: #e3e3de;
  --accent: #2456d6;
  --accent-text: #ffffff;
  --tag-bg: #eceefa;
  --tag-text: #2b3a8c;
  --shadow: 0 1px 2px rgba(0, 0, 0, .04), 0 6px 20px rgba(0, 0, 0, .05);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131315;
    --surface: #1c1c20;
    --text: #ececea;
    --muted: #a3a3a0;
    --border: #2e2e33;
    --accent: #7fa2ff;
    --accent-text: #0e1220;
    --tag-bg: #272b45;
    --tag-text: #b9c6ff;
    --shadow: none;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, "Segoe UI", sans-serif;
  line-height: 1.75;
  -webkit-text-size-adjust: 100%;
}

.wrap {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 16px;
}

a { color: var(--accent); }
a:focus-visible, .button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Header */
.site-header {
  padding: 64px 0 40px;
  border-bottom: 1px solid var(--border);
}
.eyebrow {
  margin: 0 0 4px;
  color: var(--accent);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.site-header h1 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 6vw, 3rem);
  line-height: 1.2;
  letter-spacing: -.01em;
}
.lead {
  margin: 0 0 24px;
  max-width: 40em;
  color: var(--muted);
  font-size: 1.05rem;
}
.header-links { display: flex; flex-wrap: wrap; gap: 12px; margin: 0; }

.button {
  display: inline-block;
  padding: 10px 18px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 600;
  text-decoration: none;
}
.button.ghost { background: transparent; color: var(--accent); }
.button:hover { opacity: .88; }

/* Projects */
.section-title {
  margin: 48px 0 24px;
  font-size: 1.4rem;
}
.section-title span {
  margin-left: 8px;
  padding: 2px 10px;
  border-radius: 999px;
  background: var(--tag-bg);
  color: var(--tag-text);
  font-size: .85rem;
  vertical-align: middle;
}

.project {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 28px;
  align-items: center;
  margin-bottom: 24px;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: var(--shadow);
  scroll-margin-top: 16px;
}
.project:nth-of-type(even) .project-body { order: 2; }

.project h3 {
  margin: 0 0 8px;
  font-size: 1.3rem;
  line-height: 1.4;
}
.project h3 small {
  margin-left: 6px;
  color: var(--muted);
  font-size: .8rem;
  font-weight: 500;
}
.desc { margin: 0 0 16px; color: var(--muted); }
.desc code {
  padding: 1px 6px;
  border-radius: 4px;
  background: var(--tag-bg);
  color: var(--tag-text);
  font-size: .9em;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}
.tags li {
  padding: 2px 10px;
  border-radius: 999px;
  background: var(--tag-bg);
  color: var(--tag-text);
  font-size: .78rem;
  font-weight: 600;
}
.links { margin: 0; font-weight: 600; }

/* Screenshots */
.project-media {
  display: grid;
  gap: 12px;
  min-width: 0;
}
.project-media a { display: block; }
.project-media img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
}
.project-media.phones {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.site-footer {
  margin-top: 48px;
  padding: 28px 0 40px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: .9rem;
}
.site-footer p { margin: 0; }

@media (max-width: 760px) {
  .site-header { padding: 40px 0 28px; }
  .project {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
    padding: 20px;
  }
  .project:nth-of-type(even) .project-body { order: 0; }
  .project-media { order: -1; }
}

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