/* ─────────────────────────────────────────
   Portfolio — Thomas Waters
   Shared stylesheet
   ───────────────────────────────────────── */

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.7;
  min-height: 100vh;
}

/* ── LISTS ── */
ul li::marker { content: "→ "; }
ul { margin-left: 20px; margin-bottom: 2.5rem; }
ul li { font-size: 1rem; color: var(--text-muted); line-height: 1.65; max-width: 44ch; }

/* ── NAV — breadcrumb (all pages except homepage) ── */
.topnav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(42,42,42,0.92); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 2.5rem; height: 56px;
  display: flex; align-items: center; gap: 1.5rem;
}
.topnav a {
  color: var(--text-muted); text-decoration: none;
  font-family: var(--mono); font-size: 0.72rem;
  letter-spacing: 0.08em; text-transform: uppercase; transition: color 0.2s;
}
.topnav a:hover { color: var(--accent); }
.topnav .sep { color: var(--border); }
.topnav .current { color: var(--accent); }

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--border);
  padding: 2rem 2.5rem;
  font-family: var(--mono); font-size: 0.68rem;
  color: var(--text-dim); letter-spacing: 0.06em;
  display: flex; justify-content: space-between; align-items: center;
}

/* ── CALLOUT ── */
.callout {
  border-left: 3px solid var(--accent);
  background: var(--accent-glow);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  border-radius: 0 4px 4px 0;
}
.callout p { margin: 0; font-family: var(--mono); font-size: 0.82rem; color: var(--text-muted); max-width: none; }
.callout strong { color: var(--accent); font-weight: 500; }

/* ── IMAGES ── */
.img-full { width: 100%; border-radius: 4px; border: 1px solid var(--border); display: block; margin: 1.5rem 0; }
.img-caption {
  font-family: var(--mono); font-size: 0.7rem; color: var(--text-dim);
  letter-spacing: 0.05em; margin-top: -1rem; margin-bottom: 1.5rem;
  padding-left: 0.5rem; border-left: 2px solid var(--border);
}
.img-grid { display: grid; gap: 1rem; margin: 1.5rem 0; }
.img-grid-2 { grid-template-columns: 1fr 1fr; }
.img-grid-3 { grid-template-columns: 1fr 1fr 1fr; }
.img-grid img { width: 100%; border-radius: 4px; border: 1px solid var(--border); display: block; object-fit: cover; height: 260px; }

/* ── TAGS ── */
.tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1rem 0; }
.tag {
  font-family: var(--mono); font-size: 0.65rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--accent);
  border: 1px solid var(--accent-dim); padding: 0.25rem 0.6rem;
  border-radius: 2px; background: var(--accent-glow);
}

/* ── DOWNLOAD BUTTONS ── */
.download-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 1.5rem 0; }
.download-btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  border: 1px solid var(--border); color: var(--text-muted);
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.08em;
  text-transform: uppercase; text-decoration: none;
  padding: 0.55rem 1rem; border-radius: 2px;
  transition: color 0.2s, border-color 0.2s;
}
.download-btn:hover { color: var(--accent); border-color: var(--accent); }
.download-btn svg { width: 12px; height: 12px; }

/* ── BACK BUTTON ── */
.back-btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--text-muted); text-decoration: none;
  border: 1px solid var(--border); padding: 0.6rem 1.1rem;
  border-radius: 2px; margin-top: 3rem;
  transition: color 0.2s, border-color 0.2s;
}
.back-btn:hover { color: var(--accent); border-color: var(--accent); }
.back-btn svg { width: 14px; height: 14px; }

/* ── SPEC TABLE ── */
.spec-table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-family: var(--mono); font-size: 0.8rem; }
.spec-table tr { border-bottom: 1px solid var(--border); }
.spec-table tr:last-child { border-bottom: none; }
.spec-table td { padding: 0.65rem 0.5rem; vertical-align: top; }
.spec-table td:first-child { color: var(--text-dim); width: 38%; letter-spacing: 0.05em; }
.spec-table td:last-child { color: var(--text); }

/* ── NUMBERED PROCESS STEPS (detail pages) ── */
.process-steps { counter-reset: step; margin: 1.5rem 0; }
.step { display: grid; grid-template-columns: 2.5rem 1fr; gap: 1rem; margin-bottom: 1.5rem; align-items: start; }
.step-num {
  width: 2rem; height: 2rem;
  border: 1px solid var(--accent); color: var(--accent);
  font-family: var(--mono); font-size: 0.7rem;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; margin-top: 0.2rem;
}
.step-body h4 { font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text); margin-bottom: 0.35rem; }
.step-body p { margin: 0; font-size: 0.88rem; max-width: none; }

/* ── DETAIL PAGE — HERO (single-column) ── */
.hero {
  position: relative;
  padding: 5rem 2.5rem 4rem;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
/* .hero::before grid overlay stays per-page: needs inline rgba of accent colour */
.hero-inner { position: relative; max-width: 900px; }
.hero-label {
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.15em;
  text-transform: uppercase; color: var(--accent);
  margin-bottom: 1rem; display: flex; align-items: center; gap: 0.75rem;
}
.hero-label::before { content: ''; display: inline-block; width: 2rem; height: 1px; background: var(--accent); }
.hero-meta { display: flex; flex-wrap: wrap; gap: 2rem; margin-top: 2rem; }
.meta-item { display: flex; flex-direction: column; gap: 0.2rem; }
.meta-label { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-dim); }
.meta-value { font-family: var(--mono); font-size: 0.82rem; color: var(--accent); }

/* ── DETAIL PAGE — CONTENT ── */
.content { max-width: 900px; margin: 0 auto; padding: 4rem 2.5rem 6rem; }
.section-header {
  display: flex; align-items: baseline; gap: 1rem;
  margin-bottom: 1.75rem; margin-top: 3.5rem;
  padding-bottom: 0.75rem; border-bottom: 1px solid var(--border);
}
.section-header:first-child { margin-top: 0; }
.section-num { font-family: var(--mono); font-size: 0.65rem; color: var(--accent); letter-spacing: 0.1em; flex-shrink: 0; }
h1 { font-family: var(--display); font-size: clamp(3rem, 7vw, 5.5rem); line-height: 0.95; letter-spacing: 0.02em; color: var(--text); margin-bottom: 1.5rem; }
h1 span, h1 em { color: var(--accent); font-style: normal; }
h2 { font-family: var(--display); font-size: 1.8rem; letter-spacing: 0.05em; color: var(--text); }
h3 { font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.75rem; margin-top: 2rem; }
p { font-size: 0.95rem; color: var(--text); margin-bottom: 1.1rem; max-width: 68ch; }

/* ── RESPONSIVE — detail pages ── */
@media (max-width: 640px) {
  .topnav { padding: 0 1.25rem; }
  .hero { padding: 3rem 1.25rem 2.5rem; }
  .content { padding: 2.5rem 1.25rem 4rem; }
  .img-grid-2, .img-grid-3 { grid-template-columns: 1fr; }
  footer { padding: 1.5rem 1.25rem; flex-direction: column; gap: 0.5rem; }
}