/* style3.css */
:root{
  --max: 1500px;
  --fg:#111;
  --muted: rgba(0,0,0,.68);
  --line: rgba(0,0,0,.12);
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  background:#fff;
  color:var(--fg);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
}

/* top */
.proj-top{
  max-width: var(--max);
  margin: 0 auto;
  padding: 34px 22px 0;
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
}

.proj-name{
  font-family:"GFS Didot", serif;
  font-size:54px;
  letter-spacing:-0.03em;
  line-height:1;
  text-decoration:none;
  color:inherit;
}

.proj-nav{
  display:flex;
  gap:60px;
  padding-top: 10px;
}
.proj-nav a{
  text-decoration:none;
  color:#111;
  font-size:18px;
}
.proj-nav a:hover{
  text-decoration:underline;
  text-underline-offset:6px;
}

/* layout */
.proj-wrap{
  max-width: var(--max);
  margin: 0 auto;
  padding: 46px 22px 70px;
}

.proj-info{
  display:grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 70px;
  align-items:start;
  margin-bottom: 26px;
}

.proj-title{
  margin:0;
  font-size:22px;
  font-weight:600;
  letter-spacing:-0.01em;
}

.proj-date{
  font-size:15px;
  margin-bottom: 10px;
}

.proj-desc{
  margin:0;
  font-size:15px;
  line-height:1.6;
  color: var(--muted);
}

/* stage */
.proj-stage{
  background:#fff;
  padding: 28px 0 8px;
}
.stage-inner{
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 22px;
}

/* ===== SLIDER ===== */
.slider{
  position:relative;
  width: 100%;
  display:grid;
  place-items:center;
}

.viewport{
  width: min(1300px, 92vw);
  overflow:hidden;
  background: transparent;
  border: none;
  position:relative;
  outline:none;
}

.track{
  display:flex;
  transition: transform 360ms ease;
  will-change: transform;
}

.slide{
  flex: 0 0 100%;
  display:flex;
  justify-content:center;
  align-items:center;
  padding: 18px;
}

.slide img{
  max-width: 100%;
  height: auto;
  display:block;
  object-fit: contain;
}

/* arrows */
.arrow{
  position:absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;              /* smaller circle */
  height: 32px;
  border-radius: 999px;
  border: 1px solid rgba(0,0,0,.25);
  background: rgba(255,255,255,.95);
  color:#111;
  font-size: 20px;         /* smaller arrow glyph */
  line-height: 1;
  display:grid;
  place-items:center;
  cursor:pointer;
  user-select:none;
  z-index: 20;

  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
}

.arrow-left{ left: -22px; }
.arrow-right{ right: -22px; }

.viewport:hover ~ .arrow,
.slider:hover .arrow{
  opacity: 1;
  pointer-events: auto;
}

.arrow:hover{
  transform: translateY(-50%) scale(1.03);
}

.arrow:disabled{
  opacity: 0 !important;
  pointer-events: none !important;
}

/* dots */
.dots{
  margin-top: 14px;
  display:flex;
  gap:8px;
  justify-content:center;
}

.dot{
  width: 8px;
  height: 8px;
  border-radius: 999px;
  border: 1px solid rgba(0,0,0,.35);
  background: transparent;
  cursor:pointer;
}

.dot.active{
  background: rgba(0,0,0,.75);
  border-color: rgba(0,0,0,.75);
}

/* responsive */
@media (max-width: 980px){
  .proj-info{ grid-template-columns: 1fr; gap: 18px; }
  .proj-name{ font-size:42px; }
  .proj-nav{ gap:26px; }
  .arrow{ width:40px; height:40px; }
}