/* =============================================
   C2C Animation Studio — Main Stylesheet
   Dark theme, responsive, cinematic
   ============================================= */

:root {
  --bg-primary: #0a0b0e;
  --bg-secondary: #12141a;
  --bg-card: #1a1d24;
  --bg-card-hover: #22262e;
  --bg-nav: #0d0f13cc;
  --border: #2a2e36;
  --border-accent: #3a3f4a;
  --text-primary: #e8eaed;
  --text-secondary: #9aa0a6;
  --text-muted: #5f6368;
  --accent: #e05a3a;
  --accent-hover: #f06a4a;
  --accent-glow: #e05a3a44;
  --gold: #d4a853;
  --gold-dim: #d4a85333;
  --blue: #4a8ad4;
  --green: #3aa05a;
  --purple: #8a5ac8;
  --cyan: #3ac8d4;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --shadow: 0 4px 24px rgba(0,0,0,.4);
  --shadow-lg: 0 8px 48px rgba(0,0,0,.5);
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Inter', system-ui, sans-serif;
  --transition: .2s ease;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:var(--font-sans);
  background:var(--bg-primary);
  color:var(--text-primary);
  line-height:1.6;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}

a{color:var(--accent);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--accent-hover)}
img{max-width:100%;height:auto;display:block}

/* ─── Navigation ─── */
.navbar{
  position:fixed;top:0;left:0;right:0;
  z-index:1000;
  background:var(--bg-nav);
  backdrop-filter:blur(20px) saturate(1.4);
  -webkit-backdrop-filter:blur(20px) saturate(1.4);
  border-bottom:1px solid var(--border);
  transition:box-shadow var(--transition);
}
.navbar.scrolled{box-shadow:0 2px 32px rgba(0,0,0,.5)}
.nav-inner{
  max-width:1280px;margin:0 auto;
  display:flex;align-items:center;
  padding:0 24px;height:64px;
  gap:32px;
}
.nav-brand{
  font-size:1.25rem;font-weight:700;
  color:var(--text-primary);letter-spacing:-.02em;
  display:flex;align-items:center;gap:8px;
  white-space:nowrap;
}
.nav-brand:hover{color:var(--accent)}
.nav-brand .brand-icon{font-size:1.4rem}
.nav-links{
  display:flex;gap:4px;
  list-style:none;flex:1;
}
.nav-links a{
  padding:8px 14px;
  border-radius:var(--radius-sm);
  color:var(--text-secondary);
  font-size:.875rem;font-weight:500;
  transition:all var(--transition);
}
.nav-links a:hover,.nav-links a.active{
  color:var(--text-primary);
  background:var(--bg-card);
}
/* ─── Mobile nav hamburger (CSS bars → X) ─── */
.nav-toggle{
  display:none;background:none;border:none;
  cursor:pointer;padding:4px;
  z-index:1001;position:relative;
  width:36px;height:36px;
  flex-shrink:0;
}
.nav-toggle span{
  display:block;width:22px;height:2.5px;
  background:var(--text-primary);
  border-radius:2px;
  position:absolute;left:7px;
  transition:transform .3s cubic-bezier(.4,0,.2,1),
              opacity .25s ease;
}
.nav-toggle span:nth-child(1){top:9px}
.nav-toggle span:nth-child(2){top:17px}
.nav-toggle span:nth-child(3){top:25px}
.nav-toggle.active span:nth-child(1){
  transform:translateY(8px) rotate(45deg)
}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){
  transform:translateY(-8px) rotate(-45deg)
}

/* ─── Mobile nav backdrop ─── */
.nav-backdrop{
  display:none;position:fixed;inset:0;
  z-index:999;
  background:rgba(0,0,0,.5);
  opacity:0;
  transition:opacity .3s ease;
}
.nav-backdrop.visible{display:block;opacity:1}

/* ─── Body scroll lock when menu open ─── */
body.menu-open{overflow:hidden;position:fixed;width:100%}

/* ─── Hero ─── */
.hero{
  padding:140px 24px 80px;
  text-align:center;
  background:linear-gradient(180deg, #0d0f13 0%, var(--bg-primary) 100%);
  position:relative;overflow:hidden;
}
.hero::before{
  content:'';position:absolute;top:-50%;left:50%;width:800px;height:800px;
  background:radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  transform:translate(-50%,-30%);pointer-events:none;
}
.hero h1{
  font-size:clamp(2rem,5vw,3.5rem);
  font-weight:800;letter-spacing:-.03em;
  line-height:1.15;margin-bottom:16px;
  position:relative;
}
.hero h1 span{color:var(--accent)}
.hero p{
  font-size:clamp(1rem,2vw,1.2rem);
  color:var(--text-secondary);
  max-width:600px;margin:0 auto 32px;
  position:relative;
}

/* ─── Section ─── */
.section{
  max-width:1280px;margin:0 auto;
  padding:64px 24px;
}
.section-header{
  text-align:center;margin-bottom:48px;
}
.section-header h2{
  font-size:clamp(1.5rem,3vw,2rem);
  font-weight:700;letter-spacing:-.02em;
  margin-bottom:8px;
}
.section-header p{color:var(--text-secondary);font-size:1rem}

/* ─── Browse Controls ─── */
.browse-panel{
  display:grid;
  grid-template-columns:minmax(220px,1fr) auto auto;
  gap:12px;
  align-items:end;
  margin:-18px 0 14px;
  padding:14px;
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius);
}
.browse-search label{
  display:block;
  color:var(--text-muted);
  font-size:.72rem;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:.06em;
  margin-bottom:6px;
}
.browse-search input{
  width:100%;
  height:42px;
  background:var(--bg-secondary);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  color:var(--text-primary);
  font:inherit;
  font-size:.9rem;
  padding:0 12px;
  outline:none;
}
.browse-search input:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 3px var(--accent-glow);
}
.browse-filters{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
}
.filter-btn,
.random-btn{
  min-height:42px;
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  background:var(--bg-secondary);
  color:var(--text-secondary);
  cursor:pointer;
  font:inherit;
  font-size:.82rem;
  font-weight:700;
  padding:0 12px;
  transition:all var(--transition);
}
.filter-btn:hover,
.filter-btn.active,
.random-btn:hover{
  background:var(--accent);
  border-color:var(--accent);
  color:#fff;
}
.random-btn{
  white-space:nowrap;
  background:var(--bg-primary);
}
.cast-count{
  color:var(--text-muted);
  font-size:.82rem;
  margin:0 0 18px;
}
.empty-state{
  padding:40px 24px;
  text-align:center;
  color:var(--text-secondary);
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius);
}

/* ─── Character / Item Cards ─── */
.card-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(280px,1fr));
  gap:24px;
}
.card{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  transition:all var(--transition);
  cursor:pointer;
}
.card:hover{
  transform:translateY(-4px);
  border-color:var(--border-accent);
  box-shadow:var(--shadow);
  background:var(--bg-card-hover);
}
.card-img{
  width:100%;aspect-ratio:4/3;
  object-fit:cover;
  background:var(--bg-secondary);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-muted);font-size:.875rem;
}
.card-body{padding:20px 24px 24px}
.card-body h3{font-size:1.1rem;font-weight:600;margin-bottom:4px}
.card-body .tag{
  display:inline-block;padding:2px 10px;
  border-radius:999px;font-size:.75rem;font-weight:600;
  margin-bottom:8px;
}
.tag-male{background:var(--blue);color:#fff}
.tag-female{background:var(--purple);color:#fff}
.tag-guide{background:var(--gold);color:#1a1510}
.tag-pet{background:var(--green);color:#fff}
.tag-location{background:var(--cyan);color:#081a1d}
.tag-prop{background:var(--accent);color:#fff}
.tag-project{background:var(--gold);color:#1a1510}
.tag-exp{background:#5f6368;color:#fff}
.card-body p{color:var(--text-secondary);font-size:.875rem;line-height:1.5}
.card-body .role{color:var(--text-muted);font-size:.8rem;margin-bottom:8px}
.card-actions{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid var(--border);
}
.card-actions span{
  color:var(--text-muted);
  font-size:.72rem;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:.06em;
}
.card-actions span:first-child{color:var(--accent)}
.character-card[hidden]{display:none}
.project-placeholder{
  background:
    linear-gradient(135deg, rgba(224,90,58,.16), transparent 40%),
    linear-gradient(315deg, rgba(58,200,212,.14), transparent 42%),
    var(--bg-secondary);
}
.project-card .card-img{
  border-bottom:1px solid var(--border);
}
.project-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:16px;
}
.project-tags span{
  display:inline-flex;
  align-items:center;
  min-height:28px;
  padding:4px 10px;
  border:1px solid var(--border);
  border-radius:999px;
  background:var(--bg-secondary);
  color:var(--text-secondary);
  font-size:.76rem;
  font-weight:700;
}

/* ─── Detail Page ─── */
.detail-hero{
  padding:140px 24px 48px;
  background:linear-gradient(180deg, #0d0f13, var(--bg-primary));
}
.detail-inner{max-width:1080px;margin:0 auto}
.detail-back{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--text-muted);font-size:.875rem;margin-bottom:24px;
  transition:color var(--transition);
}
.detail-back:hover{color:var(--accent)}

.character-switcher{
  margin:-4px 0 32px;
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:linear-gradient(180deg, var(--bg-card), var(--bg-secondary));
  overflow:hidden;
}
.character-switcher-top{
  display:grid;
  grid-template-columns:1fr 1fr;
  border-bottom:1px solid var(--border);
}
.character-step{
  min-height:64px;
  display:flex;
  align-items:center;
  gap:12px;
  padding:12px 16px;
  color:var(--text-secondary);
}
.character-step:hover{
  background:var(--bg-card-hover);
  color:var(--text-primary);
}
.character-step-next{
  justify-content:flex-end;
  text-align:right;
  border-left:1px solid var(--border);
}
.character-step strong,
.character-chip strong{
  display:block;
  color:var(--text-primary);
  font-size:.9rem;
  font-weight:700;
  line-height:1.2;
}
.character-step small,
.character-chip small{
  display:block;
  color:var(--text-muted);
  font-size:.72rem;
  line-height:1.2;
  margin-top:3px;
}
.character-step-icon{
  width:32px;
  height:32px;
  border-radius:50%;
  display:grid;
  place-items:center;
  background:var(--bg-primary);
  border:1px solid var(--border);
  color:var(--accent);
  flex:0 0 auto;
}
.character-strip{
  display:grid;
  grid-template-columns:repeat(7, minmax(0,1fr));
  gap:1px;
  background:var(--border);
}
.character-chip{
  min-width:0;
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px;
  background:var(--bg-secondary);
  color:var(--text-secondary);
}
.character-chip:hover,
.character-chip.active{
  background:var(--bg-card-hover);
}
.character-chip.active{
  box-shadow:inset 0 3px 0 var(--accent);
}
.character-chip img{
  width:40px;
  height:40px;
  border-radius:50%;
  object-fit:cover;
  background:var(--bg-primary);
  border:1px solid var(--border);
  flex:0 0 auto;
}
.character-chip span{min-width:0}

.detail-header{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:start;
}
.detail-img{
  width:100%;
  border-radius:var(--radius);
  background:var(--bg-card);
  border:1px solid var(--border);
  overflow:hidden;
  padding-bottom:10px;
}
.detail-img .img-main-wrap{
  width:100%;aspect-ratio:16/9;
  display:flex;align-items:center;justify-content:center;
  overflow:hidden;
}
.detail-img .img-main-wrap img{width:100%;height:100%;object-fit:contain}
.detail-info h1{
  font-size:clamp(1.8rem,3vw,2.5rem);
  font-weight:800;letter-spacing:-.02em;
  margin-bottom:4px;
}
.detail-info .detail-role{
  color:var(--text-muted);font-size:.9rem;margin-bottom:16px;
}
.detail-info .detail-desc{
  color:var(--text-secondary);line-height:1.7;margin-bottom:24px;
}
.detail-section{margin-bottom:32px}
.detail-section h3{
  font-size:1rem;font-weight:600;margin-bottom:12px;
  color:var(--text-primary);letter-spacing:-.01em;
}
.detail-section .label{
  display:inline-block;padding:3px 12px;
  border-radius:999px;font-size:.8rem;font-weight:600;
  margin:0 6px 6px 0;
}
.trait-list{display:flex;flex-wrap:wrap;gap:8px}
.trait{
  padding:6px 14px;border-radius:999px;
  background:var(--bg-card);border:1px solid var(--border);
  font-size:.8rem;color:var(--text-secondary);
}

/* ─── Project Pages ─── */
.project-hero .detail-header{align-items:stretch}
.project-cover{
  aspect-ratio:16/10;
  min-height:300px;
  padding-bottom:0;
}
.project-material-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
}
.project-material{
  min-height:150px;
  padding:18px;
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius);
}
.project-material h3{
  font-size:1rem;
  margin-bottom:8px;
}
.project-material p{
  color:var(--text-secondary);
  font-size:.88rem;
  line-height:1.6;
}
.project-overview-grid{margin-bottom:36px}
.section-note{
  color:var(--text-secondary);
  font-size:.9rem;
  line-height:1.6;
  margin:-4px 0 18px;
}
.screenshot-grid{
  display:grid;
  grid-template-columns:repeat(2, minmax(0,1fr));
  gap:18px;
}
.screenshot-card{
  overflow:hidden;
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius);
}
.screenshot-img{
  width:100%;
  aspect-ratio:16/9;
  background:var(--bg-secondary);
}
.screenshot-body{
  padding:16px;
}
.screenshot-body h4{
  font-size:1rem;
  margin-bottom:4px;
}
.asset-meta{
  color:var(--text-muted);
  font-size:.76rem;
  font-weight:700;
  margin-bottom:10px;
}
.screenshot-body p{
  color:var(--text-secondary);
  font-size:.88rem;
  line-height:1.6;
}
.asset-tags{margin-top:14px}
.asset-tags span{
  min-height:24px;
  font-size:.7rem;
  padding:3px 8px;
}

/* ─── Info Box / Trait Block ─── */
.info-block{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  padding:16px;
  margin-bottom:12px;
}
.info-block .info-label{
  font-size:.75rem;font-weight:600;
  text-transform:uppercase;letter-spacing:.06em;
  color:var(--text-muted);margin-bottom:4px;
}
.info-block .info-value{font-size:.9rem;color:var(--text-secondary);line-height:1.6}
.prompt-box{
  background:var(--bg-secondary);
  border:1px solid var(--border-accent);
  border-left:3px solid var(--accent);
  border-radius:var(--radius-sm);
  padding:16px;
  font-family:'SF Mono','Fira Code','Cascadia Code',monospace;
  font-size:.8rem;color:var(--text-secondary);
  line-height:1.6;white-space:pre-wrap;
  margin-bottom:12px;
}

/* ─── Prompt Blocks (with copy button) ─── */
.prompt-block{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-sm);
  overflow:hidden;
}
.prompt-header{
  display:flex;align-items:center;justify-content:space-between;
  padding:10px 16px;
  background:var(--bg-secondary);
  border-bottom:1px solid var(--border);
}
.prompt-label{
  font-size:.75rem;font-weight:600;
  text-transform:uppercase;letter-spacing:.06em;
  color:var(--text-muted);
}
.copy-btn{
  background:var(--bg-card);
  border:1px solid var(--border);
  color:var(--text-secondary);
  cursor:pointer;
  font-size:.75rem;padding:4px 10px;
  border-radius:6px;
  transition:all var(--transition);
  display:inline-flex;align-items:center;gap:4px;
}
.copy-btn:hover{
  background:var(--accent);
  border-color:var(--accent);
  color:#fff;
}
.copy-btn.copied{
  background:var(--green);
  border-color:var(--green);
  color:#fff;
}

/* ─── Footer ─── */
.footer{
  border-top:1px solid var(--border);
  padding:40px 24px;
  text-align:center;
  color:var(--text-muted);font-size:.85rem;
}

/* ─── Responsive ─── */
/* ─── Responsive Grids ─── */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.info-grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}

@media(max-width:768px){
  .info-grid-3{grid-template-columns:1fr 1fr}
  .browse-panel{
    grid-template-columns:1fr;
    align-items:stretch;
  }
  .browse-filters{display:grid;grid-template-columns:repeat(4,1fr)}
  .random-btn{width:100%}
  .nav-toggle{display:flex;align-items:center;justify-content:center}
  .nav-links{
    position:fixed;top:64px;left:0;right:0;
    background:var(--bg-nav);
    backdrop-filter:blur(20px) saturate(1.4);
    -webkit-backdrop-filter:blur(20px) saturate(1.4);
    flex-direction:column;padding:8px 16px 20px;
    border-bottom:1px solid var(--border);
    z-index:1000;
    display:flex;
    transform:translateY(-12px);
    opacity:0;visibility:hidden;pointer-events:none;
    transition:all .3s cubic-bezier(.4,0,.2,1);
  }
  .nav-links.open{
    transform:translateY(0);
    opacity:1;visibility:visible;pointer-events:auto;
  }
  .nav-links a{
    padding:12px 14px;
    min-height:44px;
    display:flex;align-items:center;
    font-size:.95rem;
  }
  .detail-header{grid-template-columns:1fr}
  .project-material-grid{grid-template-columns:1fr 1fr}
  .screenshot-grid{grid-template-columns:1fr}
  .character-switcher{margin-bottom:28px}
  .character-strip{
    display:flex;
    overflow-x:auto;
    scroll-snap-type:x proximity;
    scrollbar-width:thin;
  }
  .character-chip{
    min-width:152px;
    scroll-snap-align:start;
  }
  .hero{padding:120px 20px 60px}
  .section{padding:40px 20px}
  .card-grid{grid-template-columns:repeat(auto-fill, minmax(240px,1fr))}
  .img-actions{top:6px;right:6px;gap:3px}
  .img-action-btn{width:28px;height:28px;border-radius:5px}
  .img-action-btn svg{width:13px;height:13px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .grid-2{grid-template-columns:1fr}
}

@media(max-width:480px){
  .nav-inner{padding:0 16px;gap:16px}
  .browse-filters{grid-template-columns:1fr 1fr}
  .character-switcher-top{grid-template-columns:1fr}
  .character-step-next{
    border-left:0;
    border-top:1px solid var(--border);
  }
  .card-grid{grid-template-columns:1fr}
  .img-actions{top:4px;right:4px;gap:2px}
  .img-action-btn{width:22px;height:22px;border-radius:4px}
  .img-action-btn svg{width:10px;height:10px}
  .grid-3{grid-template-columns:1fr}
  .info-grid-3{grid-template-columns:1fr}
  .project-material-grid{grid-template-columns:1fr}
}

/* ─── Animations ─── */
.fade-in{animation:fadeIn .5s ease forwards}
@keyframes fadeIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}

/* ─── Image Action Overlay ─── */
.img-wrapper{position:relative;width:100%;height:100%;overflow:hidden}
.img-wrapper .img-actions{
  position:absolute;top:8px;right:8px;
  display:flex;gap:4px;
  opacity:0;
  transition:opacity var(--transition);
  z-index:10;
}
.img-wrapper:hover .img-actions,
.img-wrapper:focus-within .img-actions{opacity:1}
.img-action-btn{
  width:32px;height:32px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(0,0,0,.6);
  backdrop-filter:blur(4px);
  border:1px solid rgba(255,255,255,.15);
  border-radius:6px;
  color:#fff;
  cursor:pointer;
  transition:all var(--transition);
  padding:0;
}
.img-action-btn:hover{
  background:var(--accent);
  border-color:var(--accent);
  transform:scale(1.1);
}
.img-action-btn svg{width:16px;height:16px;display:block}

/* ─── Image Thumbnail Switcher ─── */
.img-thumbnails{
  display:flex;gap:6px;padding:10px 0 0;
  flex-wrap:wrap;
}
.img-thumbnail{
  width:92px;min-height:82px;
  border-radius:6px;overflow:hidden;
  cursor:pointer;
  border:2px solid var(--border);
  transition:all var(--transition);
  flex-shrink:0;
  background:var(--bg-card);
}
.img-thumbnail:hover{border-color:var(--accent)}
.img-thumbnail.active{border-color:var(--accent);box-shadow:0 0 8px var(--accent-glow)}
.img-thumbnail img{width:100%;height:54px;object-fit:cover;display:block}
.img-thumbnail-label{
  display:block;
  overflow:hidden;
  padding:4px 5px 5px;
  color:var(--text-secondary);
  font-size:.64rem;
  font-weight:700;
  line-height:1.1;
  text-align:center;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.img-thumbnail.active .img-thumbnail-label{color:var(--text-primary)}

/* ─── Image Lightbox ─── */
.img-lightbox{
  position:fixed;inset:0;z-index:9999;
  background:rgba(0,0,0,.85);
  backdrop-filter:blur(8px);
  display:none;align-items:center;justify-content:center;
  padding:24px;
  opacity:0;
  transition:opacity .25s ease;
  cursor:zoom-out;
}
.img-lightbox.open{display:flex;opacity:1}
.img-lightbox img{
  max-width:95vw;max-height:90vh;
  border-radius:var(--radius);
  box-shadow:0 8px 64px rgba(0,0,0,.6);
  object-fit:contain;
  cursor:default;
}
.img-lightbox .lightbox-close{
  position:absolute;top:20px;right:20px;
  width:40px;height:40px;
  border-radius:50%;
  background:rgba(0,0,0,.5);
  border:1px solid rgba(255,255,255,.2);
  color:#fff;
  font-size:1.5rem;
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;
  transition:all var(--transition);
}
.img-lightbox .lightbox-close:hover{background:var(--accent);border-color:var(--accent)}

/* ─── Utilities ─── */
.text-accent{color:var(--accent)}
.text-gold{color:var(--gold)}
.text-blue{color:var(--blue)}
.text-green{color:var(--green)}
.text-purple{color:var(--purple)}
.text-cyan{color:var(--cyan)}