/* ===== Page/container alignment vars ===== */
:root{
  --page-max: 1240px;    /* centered container width */
  --page-pad: 20px;      /* container inner padding */

  /* side-nav math — match your real buttons */
  --rail-nav-width: 65px;    /* .wjkrail-rail-btn width/height */
  --rail-nav-gap: 12px;      /* gap between nav and viewport */
  --rail-safe-gap: 16px;     /* extra gutter if desired */
}

/* ===== SCOPE (theme + computed edges) ===== */
.wjkrail-scope{
  --ink:#2b281f;
  --muted:#6e6a62;
  --title:#53492c;
  --cta:#53492c;
  --nav-bg:rgba(255,255,255,.92);
  --nav-ink:#2b281f;
  --dot:rgba(255,255,255,.55);
  --dot-active:#fff;
  --radius:18px;

  /* compute left edge of your 1240px container */
  --rail-left: calc( max((100vw - var(--page-max)) / 2, 0px) + var(--page-pad) );

  /* lane that the vertical nav occupies */
  --nav-lane: calc(var(--rail-nav-width) + var(--rail-nav-gap) + var(--rail-safe-gap));
}

/* ===== Rail layout (3-column grid) =====
   [container left gutter] [nav lane] [scroll viewport] */
.wjkrail-rail{
  position: relative;
  display: grid;
  grid-template-columns: var(--rail-left) var(--nav-lane) 1fr;
  align-items: stretch;
}

/* Side nav occupies its own column (no absolute positioning) */
.wjkrail-side-nav{
  grid-column: 2;
  display:flex;
  flex-direction:column;
  gap:12px;
  align-self:center;
  justify-self:start;
  width: var(--nav-lane);
  z-index:5;
}
.wjkrail-rail-btn{
  all:unset;
  width:65px; height:65px; border-radius:10px;
  display:grid; place-items:center;
  border:1px solid #4e4325; color:#4e4325;
  font-size:18px; line-height:1; cursor:pointer;
}
.wjkrail-rail-btn:active{ transform:scale(.97); }

/* Viewport starts to the right of the nav lane and clips its left edge */
.wjkrail-viewport{
  grid-column: 3;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 0 16px 0 0;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  scrollbar-width: none;
}
.wjkrail-viewport::-webkit-scrollbar{ display:none; }

/* Track cannot extend under nav because it's inside column 3 */
.wjkrail-track{
  display:flex;
  gap: clamp(16px,2vw,24px);
  padding: 12px clamp(10px,2vw,20px) 24px 0;
}

/* ===== Cards ===== */
.wjkrail-card{
  scroll-snap-align:start;
  flex: 0 0 clamp(280px, 30vw, 360px);
  color:var(--ink);
}

/* Media (image slider inside card) */
.wjkrail-media{
  position:relative;
  overflow:hidden;
  border-radius:12px;
  background:#e9e9e9;
  aspect-ratio: 4 / 5;
  min-height: 420px;
}
@supports not (aspect-ratio: 4/3){
  .wjkrail-media::before{ content:""; display:block; padding-top:75%; }
}
.wjkrail-slides{
  display:flex;
  height:100%;
  transition:transform .5s cubic-bezier(.2,.7,.2,1);
}
.wjkrail-slides img{
  width:100%;
  height:100%;
  object-fit:cover;
  flex:0 0 100%;
}

/* Dots */
.wjkrail-dots{
  position:absolute;
  left:50%;
  bottom:10px;
  transform:translateX(-50%);
  display:flex;
  gap:8px;
  z-index:2;
}
.wjkrail-dot{ width:8px; height:8px; border-radius:50%; background:var(--dot); }
.wjkrail-dot.is-active{ background:var(--dot-active); }

/* Card thumb nav */
.wjkrail-thumb{
  all:unset;
  position:absolute;
  bottom:10px;
  width:48px; height:48px;
  display:grid; place-items:center;
  border-radius:10px;
  background:var(--nav-bg);
  color:var(--nav-ink);
  font-size:24px;
  line-height:1;
  box-shadow:0 8px 20px rgba(0,0,0,.18);
  z-index:3;
  opacity:0;
  visibility:hidden;
  cursor:pointer;
  transition:opacity .2s ease, visibility .2s ease, transform .15s ease;
}
.wjkrail-thumb.prev{ left:10px; }
.wjkrail-thumb.next{ right:10px; }
.wjkrail-media:hover .wjkrail-thumb,
.wjkrail-media:focus-within .wjkrail-thumb{
  opacity:1; visibility:visible;
}
.wjkrail-media:not(:has(img:nth-child(2))) .wjkrail-thumb,
.wjkrail-media:not(:has(img:nth-child(2))) .wjkrail-dots{
  display:none !important;
}

/* Info */
.wjkrail-info{
  padding: clamp(16px,1.8vw,22px) clamp(6px,1vw,8px);
}

/* Project title */
.wjkrail-title{
  margin:18px 0 0;
  font-weight:500;
  font-size:30px;
  color:#53492c;
  font-family: Lora, serif;
}

/* CTA */
.wjkrail-cta{
  display:inline-block;
  font-family:"Montserrat", sans-serif;
  font-weight:500;
  font-size:14px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:#53492c;
  text-decoration:none;
  position:relative;
  padding-bottom:4px;
}
.wjkrail-cta::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:0%;
  height:2px;
  background:#53492c;
  transition:width .3s ease;
}
.wjkrail-cta:hover::after{ width:100%; }

/* ===== Small screens ===== */
@media (max-width: 640px){
  .wjkrail-scope{ --rail-left: 16px; }
  .wjkrail-card{ flex-basis: 84vw; }
}

/* ===== Mobile: disable OUTER rail (not per-card) and stack cards ===== */
@media (max-width: 640px){
  .wjkrail-rail{
    grid-template-columns: 1fr !important;
  }

  .wjkrail-scope{
    --rail-left: 0px !important;
    --nav-lane: 0px !important;
  }

  .wjkrail-viewport{
    grid-column: 1 / -1 !important;
    overflow: visible !important;
    scroll-snap-type: none !important;
    padding: 0 !important;
  }

  .wjkrail-track{
    display: block !important;
    gap: 0 !important;
    padding: 0 !important;
  }

  .wjkrail-card{
    flex: 1 1 100% !important;
    max-width: none !important;
    scroll-snap-align: unset !important;
    margin: 0 0 24px 0;
  }

  /* hide only outer side-nav arrows */
  .wjkrail-side-nav{
    display: none !important;
  }
}

/* Collapse the nav lane entirely when JS adds .wjkrail--no-nav */
.wjkrail-scope.wjkrail--no-nav{
  --nav-lane: 0px !important;
}
.wjkrail-scope.wjkrail--no-nav .wjkrail-side-nav{
  display: none !important;
}