@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=Inter:wght@400;500;600;700&display=swap');

:root{
  --bg: #F6F6F4;
  --panel: #FFFFFF;
  --text: #14161A;
  --muted: #6B7076;
  --border: #E2E3E0;
  --accent: #FF5A1F;
  --accent-soft: #FFF1EA;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;
  --sans: 'Inter', -apple-system, sans-serif;
}

*{ box-sizing: border-box; }

body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.5;
}

.wrap{
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 24px 96px;
}

/* header */
header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-bottom: 56px;
  flex-wrap: wrap;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:600;
  font-size:15px;
}
.brand .dot{
  width:8px; height:8px; border-radius:50%;
  background: var(--accent);
  flex-shrink:0;
}
.header-right{
  display:flex;
  align-items:center;
  gap:10px;
}
header a.icon-link{
  color: var(--muted);
  text-decoration:none;
  font-size:13px;
  display:flex;
  align-items:center;
  gap:6px;
  border:1px solid var(--border);
  padding:6px 12px;
  border-radius:6px;
  transition: border-color .15s ease, color .15s ease;
}
header a.icon-link:hover{ border-color: var(--text); color: var(--text); }

/* language switcher */
#langSwitcher{
  display:flex;
  gap:2px;
  border:1px solid var(--border);
  border-radius:6px;
  padding:2px;
  background: var(--panel);
}
.lang-btn{
  font-family: var(--sans);
  font-size:12px;
  font-weight:500;
  border:none;
  background:transparent;
  color: var(--muted);
  padding:5px 10px;
  border-radius:4px;
  cursor:pointer;
  transition: background .15s ease, color .15s ease;
}
.lang-btn:hover{ color: var(--text); }
.lang-btn.active{ background: var(--text); color:#fff; }

/* eyebrow / section labels */
.eyebrow{
  font-family: var(--mono);
  font-size:12px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color: var(--accent);
  margin: 0 0 12px;
  display:flex; align-items:center; gap:8px;
}
.eyebrow::before{
  content:'';
  width:6px; height:6px;
  background: var(--accent);
  border-radius:50%;
  display:inline-block;
}
.section-label{
  font-family: var(--mono);
  font-size:12px;
  letter-spacing:.08em;
  text-transform:uppercase;
  color: var(--muted);
  margin: 64px 0 24px;
}

/* project menu (index.html) */
.page-title{
  font-family: var(--mono);
  font-weight:600;
  font-size: clamp(32px, 6vw, 44px);
  letter-spacing:-.02em;
  margin: 0 0 8px;
}
.page-subtitle{
  font-size:15px;
  color: var(--muted);
  margin: 0 0 40px;
}
.project-list{
  display:flex;
  flex-direction:column;
  gap:1px;
  background: var(--border);
  border:1px solid var(--border);
  border-radius:10px;
  overflow:hidden;
}
.project-card{
  background: var(--panel);
  padding:22px 24px;
  text-decoration:none;
  color: var(--text);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  transition: background .15s ease;
}
.project-card:hover{ background: var(--accent-soft); }
.project-card-name{
  font-family: var(--mono);
  font-weight:600;
  font-size:16px;
  margin: 0 0 4px;
}
.project-card-desc{
  font-size:13.5px;
  color: var(--muted);
  margin:0;
}
.project-card-cta{
  font-family: var(--mono);
  font-size:12.5px;
  color: var(--accent);
  white-space: nowrap;
  flex-shrink:0;
}

/* project tagline + gallery (release.html) */
.tagline{
  font-size:16px;
  color: var(--muted);
  margin: -8px 0 32px;
  max-width: 46ch;
}
.gallery-section{
  margin: 0 0 48px;
}
.gallery{
  display:flex;
  gap:14px;
  overflow-x:auto;
  overflow-y:hidden;
  padding-bottom:14px;
  margin: 0 -24px;
  padding-left:24px;
  padding-right:24px;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}
.gallery::-webkit-scrollbar{ height:6px; }
.gallery::-webkit-scrollbar-thumb{ background: var(--border); border-radius:3px; }
.gallery::-webkit-scrollbar-track{ background:transparent; }
.gallery-item{
  flex: 0 0 auto;
  width: min(78vw, 340px);
  scroll-snap-align: start;
}
.gallery-item img{
  width:100%;
  aspect-ratio: 8 / 5;
  object-fit: cover;
  display:block;
  border-radius:10px;
  border:1px solid var(--border);
  background: var(--panel);
}
.gallery-caption{
  font-family: var(--mono);
  font-size:12px;
  color: var(--muted);
  margin: 8px 2px 0;
}

/* hero (release.html) */
.hero-version{
  font-family: var(--mono);
  font-weight:600;
  font-size: clamp(40px, 8vw, 64px);
  letter-spacing:-.02em;
  margin: 0 0 8px;
}
.hero-title{
  font-size:17px;
  color: var(--muted);
  margin: 0 0 24px;
}
.hero-meta{
  font-family: var(--mono);
  font-size:13px;
  color: var(--muted);
  margin-bottom:28px;
}
.btn-row{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom: 20px;}
.btn{
  font-family: var(--sans);
  font-weight:600;
  font-size:14px;
  padding:11px 18px;
  border-radius:8px;
  text-decoration:none;
  display:inline-flex;
  align-items:center;
  gap:8px;
  border:1px solid transparent;
  transition: transform .12s ease, opacity .12s ease;
}
.btn:active{ transform: scale(0.98); }
.btn-primary{ background: var(--accent); color:#fff; }
.btn-primary:hover{ opacity:.92; }
.btn-ghost{ background: var(--panel); color: var(--text); border-color: var(--border); }
.btn-ghost:hover{ border-color: var(--text); }

.assets{
  font-family: var(--mono);
  font-size:12.5px;
  color: var(--muted);
}
.assets a{ color: var(--muted); }
.assets a:hover{ color: var(--text); }

.body-md{
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size:14.5px;
  color: #33363D;
  white-space: pre-wrap;
  word-break: break-word;
}

/* timeline */
.timeline{
  position:relative;
  padding-left: 24px;
}
.timeline::before{
  content:'';
  position:absolute;
  left:5px; top:6px; bottom:6px;
  width:1px;
  background: var(--border);
}
.tl-item{
  position:relative;
  padding-bottom: 28px;
}
.tl-item:last-child{ padding-bottom:0; }
.tl-item::before{
  content:'';
  position:absolute;
  left:-24px; top:6px;
  width:9px; height:9px;
  border-radius:50%;
  background: var(--bg);
  border:1px solid var(--muted);
}
.tl-row{
  display:flex;
  align-items:baseline;
  gap:12px;
  flex-wrap:wrap;
  cursor:pointer;
}
.tl-tag{
  font-family: var(--mono);
  font-weight:600;
  font-size:15px;
}
.tl-date{
  font-family: var(--mono);
  font-size:12px;
  color: var(--muted);
}
.tl-title{
  font-size:13.5px;
  color: var(--muted);
  flex-basis:100%;
}
.tl-toggle{
  margin-left:auto;
  font-family: var(--mono);
  font-size:12px;
  color: var(--muted);
}
.tl-body{
  display:none;
  margin-top:12px;
  font-size:13.5px;
  color: #33363D;
  white-space: pre-wrap;
  word-break: break-word;
}
.tl-body.open{ display:block; }
.tl-assets{
  margin-top:10px;
  font-family: var(--mono);
  font-size:12px;
}
.tl-assets a{ color: var(--accent); text-decoration:none; }
.tl-assets a:hover{ text-decoration:underline; }

/* states */
.state{
  font-family: var(--mono);
  color: var(--muted);
  font-size:14px;
  padding: 40px 0;
}
.state.error{ color: var(--accent); }

footer{
  margin-top:80px;
  padding-top:20px;
  border-top:1px solid var(--border);
  font-family: var(--mono);
  font-size:12px;
  color: var(--muted);
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:8px;
}
footer a{ color: var(--muted); }

@media (prefers-reduced-motion: reduce){
  .btn{ transition:none; }
}