/* ============================================================================
   PNW 2026 trip site — the whole theme.
   Loaded ONLY on the six trip pages. Every token is --pnw- prefixed and every
   rule is scoped under .pnw, so nothing here can touch the main site.
   Reference: NPS Unigrid brochures — rigid grid, generous air, mono numerals,
   photography doing the emotional work.
   ========================================================================== */

.pnw {
  /* ground + ink */
  --pnw-basalt: #14181a;   /* wet volcanic rock: mastheads, footer */
  --pnw-fog:    #e3e7e4;   /* cool gray-green page ground (not cream) */
  --pnw-paper:  #f4f6f4;   /* raised surfaces */
  --pnw-ink:    #1e2422;   /* body text */
  --pnw-slate:  #6a7570;   /* secondary text, rules, mono metadata */

  /* section accents — used only for rules, ticks, links. never a fill */
  --pnw-moss:      #2f5d3f; /* Olympic */
  --pnw-glacier:   #6e9dae; /* Rainier */
  --pnw-granite:   #7c8189; /* North Cascades */
  --pnw-harbor:    #3e5a6b; /* Seattle */
  --pnw-tidewater: #1f4a55; /* Alaska cruise */

  /* the active page sets --pnw-accent to one of the above (default slate) */
  --pnw-accent: var(--pnw-slate);

  /* type — ideal faces first, system fallbacks after. drop woff2 in fonts/ to upgrade */
  --pnw-display: 'Archivo', 'Archivo Expanded', 'Helvetica Neue', 'Arial Narrow', Arial, sans-serif;
  --pnw-body: 'Newsreader', Georgia, 'Iowan Old Style', 'Times New Roman', serif;
  --pnw-mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', 'SFMono-Regular', Menlo, Consolas, monospace;

  --pnw-measure: 66ch;      /* comfortable reading column */
  --pnw-maxw: 1180px;       /* outer container */
  --pnw-gap: clamp(1rem, 2.5vw, 2rem);

  color: var(--pnw-ink);
  background: var(--pnw-fog);
  font-family: var(--pnw-body);
  font-size: 18px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* the pnw class sits on <body>; reset the essentials without leaking out */
body.pnw { margin: 0; min-height: 100vh; }

.pnw *,
.pnw *::before,
.pnw *::after { box-sizing: border-box; }

.pnw img { max-width: 100%; display: block; }

.pnw a { color: var(--pnw-accent); text-underline-offset: 3px; }
.pnw a:hover { text-decoration-thickness: 2px; }

/* per-section accent classes ------------------------------------------------ */
.pnw--olympic   { --pnw-accent: var(--pnw-moss); }
.pnw--rainier   { --pnw-accent: var(--pnw-glacier); }
.pnw--cascades  { --pnw-accent: var(--pnw-granite); }
.pnw--seattle   { --pnw-accent: var(--pnw-harbor); }
.pnw--cruise    { --pnw-accent: var(--pnw-tidewater); }

/* utility: anything measured is mono ---------------------------------------- */
.pnw .mono {
  font-family: var(--pnw-mono);
  font-size: 0.78em;
  letter-spacing: 0.02em;
  color: var(--pnw-slate);
  font-variant-numeric: tabular-nums;
}

/* ---- masthead ------------------------------------------------------------- */
.pnw-masthead {
  background: var(--pnw-basalt);
  color: var(--pnw-fog);
  padding: clamp(2.5rem, 7vw, 5rem) var(--pnw-gap) clamp(2rem, 5vw, 3.5rem);
}
.pnw-masthead__inner { max-width: var(--pnw-maxw); margin: 0 auto; }

.pnw-masthead .pnw-kicker,
.pnw-masthead .mono { color: #aab4af; }

.pnw-title {
  font-family: var(--pnw-display);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.02;
  margin: 0;
  font-size: clamp(2rem, 6.2vw, 4.5rem);
  color: var(--pnw-fog);
}
.pnw-kicker {
  font-family: var(--pnw-mono);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  margin: 0 0 0.9rem;
  color: var(--pnw-accent);
}
.pnw-masthead .mono.pnw-dates { display: block; margin-top: 1rem; font-size: 0.85rem; }

/* the contour motif sits under the title, drawn in the accent color */
.pnw-contour { display: block; width: 100%; height: 40px; margin-top: 1.4rem; color: var(--pnw-accent); }
.pnw-contour path,
.pnw-contour line,
.pnw-contour circle { stroke: currentColor; fill: none; vector-effect: non-scaling-stroke; }

/* five-segment nav rule (landing) ------------------------------------------- */
.pnw-segrule {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 4px;
  max-width: var(--pnw-maxw);
  margin: 0 auto;
  padding: 0 var(--pnw-gap);
  list-style: none;
}
.pnw-segrule li { margin: 0; }
.pnw-segrule a {
  display: block;
  padding: 0.85rem 0.6rem;
  border-top: 4px solid var(--pnw-seg, var(--pnw-slate));
  color: var(--pnw-ink);
  text-decoration: none;
  font-family: var(--pnw-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  transition: background 0.15s;
}
.pnw-segrule a:hover { background: var(--pnw-paper); }
.pnw-seg--moss      { --pnw-seg: var(--pnw-moss); }
.pnw-seg--glacier   { --pnw-seg: var(--pnw-glacier); }
.pnw-seg--granite   { --pnw-seg: var(--pnw-granite); }
.pnw-seg--harbor    { --pnw-seg: var(--pnw-harbor); }
.pnw-seg--tidewater { --pnw-seg: var(--pnw-tidewater); }

/* ---- generic content column ---------------------------------------------- */
.pnw-wrap { max-width: var(--pnw-maxw); margin: 0 auto; padding: var(--pnw-gap); }
.pnw-measure { max-width: var(--pnw-measure); }
.pnw-lede { font-size: 1.15rem; line-height: 1.65; margin: 0 auto; }

.pnw-breadcrumb {
  max-width: var(--pnw-maxw);
  margin: 0 auto;
  padding: 1.1rem var(--pnw-gap) 0;
  font-family: var(--pnw-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.pnw-breadcrumb a { color: var(--pnw-slate); text-decoration: none; }
.pnw-breadcrumb a:hover { color: var(--pnw-accent); }

/* ---- landing: full-bleed illustrated route banner ------------------------ */
.pnw-banner { width: 100%; margin: 0; line-height: 0; background: var(--pnw-basalt); }
.pnw-banner img { width: 100%; height: auto; display: block; }

/* ---- landing: section index bands ---------------------------------------- */
.pnw-index { max-width: var(--pnw-maxw); margin: 0 auto; padding: var(--pnw-gap); display: grid; gap: 1px; background: rgba(0,0,0,0.08); }
.pnw-band {
  display: grid;
  grid-template-columns: 1fr;
  background: var(--pnw-paper);
  text-decoration: none;
  color: var(--pnw-ink);
}
.pnw-band__photo { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: var(--pnw-fog); }
.pnw-band__photo img { width: 100%; height: 100%; object-fit: cover; }
.pnw-band__body { padding: clamp(1.2rem, 3vw, 2rem); border-top: 4px solid var(--pnw-band-accent, var(--pnw-slate)); }
.pnw-band h2 { font-family: var(--pnw-display); text-transform: uppercase; letter-spacing: 0.03em; font-size: clamp(1.4rem, 3vw, 2rem); margin: 0.2rem 0 0.3rem; }
.pnw-band:hover .pnw-band__body { background: #fff; }

@media (min-width: 760px) {
  .pnw-band { grid-template-columns: 1.4fr 1fr; }
  .pnw-band__body { border-top: none; border-left: 4px solid var(--pnw-band-accent, var(--pnw-slate)); display: flex; flex-direction: column; justify-content: center; }
}

/* ---- gallery -------------------------------------------------------------- */
.pnw-gallery { max-width: var(--pnw-maxw); margin: 0 auto; padding: var(--pnw-gap); display: grid; gap: clamp(2rem, 5vw, 4rem); }

.pnw-figure { margin: 0; }
.pnw-figure img { width: 100%; height: auto; background: var(--pnw-fog); cursor: zoom-in; }

.pnw-cap { margin-top: 0.7rem; max-width: var(--pnw-measure); }
.pnw-cap p { margin: 0 0 0.35rem; }
.pnw-cap .mono { display: block; }

/* paired half-width */
.pnw-pair { display: grid; gap: clamp(1rem, 3vw, 2rem); }
@media (min-width: 720px) { .pnw-pair { grid-template-columns: 1fr 1fr; align-items: start; } }

/* offset narrow (portrait): image left, caption in the wide margin beside it */
@media (min-width: 820px) {
  .pnw-figure--offset { display: grid; grid-template-columns: minmax(0, 46%) 1fr; column-gap: clamp(1.5rem, 4vw, 3rem); align-items: end; }
  .pnw-figure--offset .pnw-cap { margin-top: 0; padding-bottom: 0.5rem; }
}

/* subsection heading (cruise ports) */
.pnw-sub {
  position: sticky;
  top: 0;
  z-index: 5;
  margin: 0 auto;
  max-width: var(--pnw-maxw);
  padding: 0.6rem var(--pnw-gap);
  background: var(--pnw-fog);
  border-bottom: 2px solid var(--pnw-accent);
  font-family: var(--pnw-mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.75rem;
  color: var(--pnw-ink);
}

/* ---- prev / next + footer ------------------------------------------------- */
.pnw-pager {
  max-width: var(--pnw-maxw);
  margin: 0 auto;
  padding: var(--pnw-gap);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--pnw-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-top: 1px solid rgba(0,0,0,0.12);
}
.pnw-pager a { color: var(--pnw-accent); text-decoration: none; }
.pnw-pager span[aria-hidden] { color: var(--pnw-slate); }

.pnw-footer {
  background: var(--pnw-basalt);
  color: #aab4af;
  padding: 2.5rem var(--pnw-gap);
}
.pnw-footer__inner { max-width: var(--pnw-maxw); margin: 0 auto; font-family: var(--pnw-mono); font-size: 0.75rem; line-height: 1.9; }
.pnw-footer a { color: var(--pnw-fog); }

/* ---- lightbox ------------------------------------------------------------- */
.pnw-lb {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(20, 24, 26, 0.96);
  padding: clamp(0.5rem, 3vw, 2rem);
}
.pnw-lb[open], .pnw-lb.is-open { display: flex; }
.pnw-lb__img { max-width: 100%; max-height: 82vh; object-fit: contain; box-shadow: 0 10px 40px rgba(0,0,0,0.5); }
.pnw-lb__cap { position: absolute; left: 0; right: 0; bottom: 0; padding: 1rem clamp(1rem, 4vw, 3rem); color: var(--pnw-fog); background: linear-gradient(transparent, rgba(0,0,0,0.6)); font-family: var(--pnw-body); }
.pnw-lb__cap .mono { color: #c2ccc6; }
.pnw-lb__btn {
  position: absolute;
  background: none;
  border: 1px solid rgba(255,255,255,0.35);
  color: var(--pnw-fog);
  width: 46px; height: 46px;
  border-radius: 50%;
  font-size: 1.4rem;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
}
.pnw-lb__btn:hover { background: rgba(255,255,255,0.12); }
.pnw-lb__btn:focus-visible { outline: 2px solid var(--pnw-fog); outline-offset: 2px; }
.pnw-lb__prev { left: clamp(0.5rem, 3vw, 2rem); }
.pnw-lb__next { right: clamp(0.5rem, 3vw, 2rem); }
.pnw-lb__close { top: clamp(0.5rem, 3vw, 2rem); right: clamp(0.5rem, 3vw, 2rem); }

/* ---- focus + motion ------------------------------------------------------- */
.pnw a:focus-visible,
.pnw button:focus-visible { outline: 2px solid var(--pnw-accent); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
  .pnw *, .pnw *::before, .pnw *::after { transition: none !important; animation: none !important; }
}
