/* ---- colah-inspired portfolio ---- */

:root {
  --ink: #2b2b2b;
  --muted: #777;
  --rule: #e4e4e4;
  --panel: #f4f4f4;
  --link: #1a1a1a;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: Georgia, "Times New Roman", serif;
  color: var(--ink);
  line-height: 1.6;
  /* blurred nature backdrop behind the white panel */
  background: #3a4a3a url("https://images.unsplash.com/photo-1441974231531-c6227db76b6e?auto=format&fit=crop&w=1600&q=60")
              center / cover fixed no-repeat;
}

/* ---- header ---- */
.site-header {
  background: #2b2b2b;
  color: #ddd;
}
.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.site-title {
  font-size: 1.5rem;
  color: #f0f0f0;
  text-decoration: none;
  letter-spacing: .3px;
}
.site-nav a {
  color: #d8d8d8;
  text-decoration: none;
  margin-left: 28px;
  font-size: 1.05rem;
}
.site-nav a:hover { color: #fff; }

/* ---- centered white panel ---- */
.panel {
  max-width: 880px;
  margin: 34px auto;
  background: #fdfdfd;
  padding: 48px 60px;
  box-shadow: 0 2px 24px rgba(0,0,0,.28);
  min-height: 60vh;
}

h1, h2, h3 { font-weight: bold; line-height: 1.25; }
h1 { font-size: 2.1rem; margin: 0 0 .4em; }
h2 { font-size: 1.55rem; margin: 1.6em 0 .5em; }
.lead { font-size: 1.15rem; color: #444; }

a { color: var(--link); }
.panel a { text-decoration: underline; text-decoration-color: #bbb; }
.panel a:hover { text-decoration-color: var(--ink); }

/* ---- featured project grid (colah-style: content-sized cards, adaptive columns) ---- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 34px 30px;
  margin: 32px 0 10px;
  align-items: start; /* don't stretch a card to match a taller row-mate;
                          each card should size to its own content only */
}
.card {
  border: 1px solid #222;
  border-radius: 2px;
  background: #fff;
  padding: 24px 22px 22px;
  text-decoration: none !important;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  min-width: 0; /* grid items default to min-width:auto, which stops them shrinking
                   below their content's natural width and lets wide images overflow */
  transition: box-shadow .35s cubic-bezier(.22,1,.36,1),
              transform .35s cubic-bezier(.22,1,.36,1),
              border-color .35s ease;
  will-change: transform;
}
.card:hover {
  box-shadow: 0 14px 34px rgba(0,0,0,.16), 0 4px 10px rgba(0,0,0,.08);
  transform: translateY(-6px);
  border-color: #000;
}
.card .card-img-frame {
  min-width: 0;
  max-height: 260px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.card img {
  max-width: 100%;
  max-height: 260px;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  transition: transform .5s cubic-bezier(.22,1,.36,1);
}
.card:hover img { transform: scale(1.04); }
.card .card-title { text-align: center; font-size: 1.35rem; font-weight: bold; margin: 20px 0 6px; }
.card .card-sub { text-align: center; font-style: italic; color: var(--muted); font-size: 1rem; }

/* ---- project list ---- */
.proj-list { list-style: none; padding: 0; }
.proj-list li { padding: 14px 0; border-bottom: 1px solid var(--rule); }
.proj-list .name { font-size: 1.2rem; font-weight: bold; }
.proj-list .desc { color: #555; }
.proj-list .links a { font-size: .92rem; margin-right: 14px; }

/* ---- blog list ---- */
.post-list { list-style: none; padding: 0; }
.post-list li { padding: 16px 0; border-bottom: 1px solid var(--rule); }
.post-list .post-date { color: var(--muted); font-size: .92rem; }
.post-title { font-size: 2.2rem; }
.post-meta { color: var(--muted); margin-top: -.4em; }
.post-content { margin-top: 1.4em; }
.post-content img { max-width: 100%; }

/* ---- footer ---- */
.site-footer {
  text-align: center;
  color: #e8e8e8;
  font-size: .9rem;
  padding: 24px 16px 40px;
  text-shadow: 0 1px 3px rgba(0,0,0,.5);
}
.site-footer a { color: #fff; }

/* ---- responsive ---- */
@media (max-width: 720px) {
  /* iOS Safari handles fixed backgrounds poorly (scroll jank); use scroll attachment on phones */
  html, body { background-attachment: scroll; }
  .panel { padding: 24px 18px; margin: 14px 10px; }
  .grid { grid-template-columns: 1fr; gap: 24px; }
  .card { padding: 20px 18px 18px; }
  .card .card-img-frame { max-height: 200px; }
  .card img { max-height: 200px; }
  .header-inner { flex-direction: column; gap: 10px; padding: 16px 18px; text-align: center; }
  .site-nav a { margin: 0 12px; font-size: 1rem; }
  h1 { font-size: 1.7rem; }
  h2 { font-size: 1.3rem; }
  .lead { font-size: 1.05rem; }
  .proj-list .name { font-size: 1.05rem; }
  .post-title { font-size: 1.7rem; }
  table { display: block; overflow-x: auto; }
}

@media (max-width: 420px) {
  .panel { padding: 18px 14px; }
  .site-title { font-size: 1.25rem; }
}