/* ------------------------------------------------------------------ *
 *  Alex Stross — gallery
 *  Light, mobile-first, dependency-free. Spacing scales with clamp(),
 *  the project grid reflows with auto-fit. Nothing is pinned to a
 *  fixed desktop width, so it holds from phone to large display.
 * ------------------------------------------------------------------ */

:root {
  --bg:        #f7f6f2;   /* warm gallery white */
  --ink:       #16130f;   /* near-black text    */
  --muted:     #8a857c;   /* secondary text     */
  --line:      #e2ded6;   /* hairline rules     */

  --measure:   1100px;    /* max content width  */
  --gutter:    clamp(1.5rem, 5vw, 4rem);   /* min 24px keeps a real margin on phones */

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
          Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; }

a { color: inherit; text-decoration: none; }

/* ---- shell ------------------------------------------------------- */

.wrap {
  width: 100%;
  max-width: var(--measure);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ---- masthead / nav --------------------------------------------- */

.masthead {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  /* top/bottom only — longhand, so .wrap's horizontal gutter is preserved */
  padding-top: clamp(1.75rem, 5vw, 3.25rem);
  padding-bottom: clamp(1.25rem, 3vw, 2rem);
  border-bottom: 1px solid var(--line);
}

.wordmark {
  font-size: clamp(1.25rem, 3.2vw, 1.6rem);
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: lowercase;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(1rem, 3vw, 2rem);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.nav a { padding-bottom: 2px; border-bottom: 1px solid transparent; }
.nav a:hover,
.nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--ink); }

/* ---- work index (project grid) ---------------------------------- */

.work-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
  gap: clamp(2rem, 6vw, 4.5rem);
  margin: clamp(2.5rem, 7vw, 5rem) 0 clamp(4rem, 10vw, 7rem);
}

.tile figure { margin: 0; }

.tile img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: #ece9e2;
  transition: opacity 0.35s ease;
}
.tile:hover img { opacity: 0.86; }

.tile figcaption {
  margin-top: 0.9rem;
  font-size: 1rem;
  letter-spacing: 0.01em;
}
.tile figcaption .count {
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ---- project (sequence of images) ------------------------------- */

.project-head {
  margin: clamp(2.5rem, 7vw, 5rem) 0 clamp(2rem, 6vw, 4rem);
}
.project-head h1 {
  margin: 0;
  font-size: clamp(1.6rem, 4.5vw, 2.4rem);
  font-weight: 500;
  letter-spacing: 0.01em;
}
.back {
  display: inline-block;
  margin-bottom: 1.25rem;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.back:hover { color: var(--ink); }

.sequence {
  display: flex;
  flex-direction: column;
  gap: clamp(3rem, 9vw, 7rem);
  margin-bottom: clamp(4rem, 12vw, 8rem);
}
.sequence img { width: 100%; margin: 0 auto; }

/* ---- about ------------------------------------------------------- */

.about {
  max-width: 34rem;
  margin: clamp(3rem, 9vw, 6rem) 0 clamp(4rem, 12vw, 8rem);
  font-size: 1.1rem;
}
.about h1 {
  font-size: clamp(1.6rem, 4.5vw, 2.4rem);
  font-weight: 500;
  margin: 0 0 1.5rem;
}

/* ---- footer ------------------------------------------------------ */

.foot {
  border-top: 1px solid var(--line);
  /* top/bottom only — longhand, so .wrap's horizontal gutter is preserved */
  padding-top: clamp(1.75rem, 5vw, 2.75rem);
  padding-bottom: clamp(2.5rem, 6vw, 4rem);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  justify-content: space-between;
}
.foot a:hover { color: var(--ink); }