:root{
  --bg:#fff3e3;
  --bg-strong:#ffe1c7;
  --surface:#ffffff;
  --surface-alt:#fff8f1;
  --text:#1b1f2a;
  --muted:#5e6675;
  --primary:#ff6b35;
  --primary-strong:#f2542d;
  --secondary:#1ea896;
  --border:#f4d2bc;
  --shadow:0 18px 45px rgba(30,24,20,0.12);
  --radius:16px;
  --font-display:'Fraunces','Georgia','Times New Roman',serif;
  --font-body:'Avenir Next','Avenir','Trebuchet MS','Noto Sans',sans-serif;
}

@media (prefers-color-scheme: dark){
  :root{
    --bg:#0b1116;
    --bg-strong:#101923;
    --surface:#141b22;
    --surface-alt:#11161b;
    --text:#f3f4f6;
    --muted:#a6b0be;
    --primary:#ff7b4a;
    --primary-strong:#ff6b35;
    --secondary:#3dcfb4;
    --border:#283241;
    --shadow:0 18px 45px rgba(0,0,0,0.35);
  }
}

*{box-sizing:border-box}

body{
  margin:0;
  font-family:var(--font-body);
  color:var(--text);
  background:radial-gradient(circle at 10% 0%,rgba(255,107,53,0.18),transparent 45%),
    radial-gradient(circle at 90% 5%,rgba(30,168,150,0.18),transparent 50%),
    var(--bg);
  min-height:100vh;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:radial-gradient(circle at 20% 20%,rgba(255,255,255,0.35),transparent 35%),
    radial-gradient(circle at 80% 25%,rgba(255,255,255,0.2),transparent 40%);
  opacity:0.35;
  pointer-events:none;
  z-index:-1;
}

@media (prefers-color-scheme: dark){
  body::before{
    background-image:radial-gradient(circle at 20% 20%,rgba(255,107,53,0.08),transparent 35%),
      radial-gradient(circle at 80% 25%,rgba(30,168,150,0.06),transparent 40%);
    opacity:0.5;
  }
}

.container{
  max-width:1080px;
  margin:0 auto;
  padding:1.5rem 1.25rem 2.5rem;
}

.header{
  background:linear-gradient(135deg,rgba(255,107,53,0.18),rgba(30,168,150,0.12));
  border:1px solid var(--border);
  border-radius:24px;
  padding:1.6rem 1.8rem;
  box-shadow:var(--shadow);
  position:relative;
  overflow:hidden;
}

.header::after{
  content:"";
  position:absolute;
  right:-40px;
  top:-40px;
  width:120px;
  height:120px;
  border-radius:50%;
  background:rgba(255,107,53,0.18);
}

.header .title{
  display:flex;
  align-items:center;
  gap:0.75rem;
  font-family:var(--font-display);
  font-size:2.1rem;
  margin:0;
}

.header .title .icon{
  display:grid;
  place-items:center;
  width:2.6rem;
  height:2.6rem;
  border-radius:50%;
  background:var(--surface);
  box-shadow:0 12px 24px rgba(30,24,20,0.12);
}

.subtitle{
  margin:0.35rem 0 0;
  color:var(--muted);
  font-size:1rem;
}

.panel{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:1.25rem 1.25rem 1.4rem;
  margin:1.2rem 0;
  box-shadow:var(--shadow);
}

.row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:0.75rem;
  flex-wrap:wrap;
}

.tools{
  display:flex;
  gap:0.5rem;
  align-items:center;
  flex-wrap:wrap;
}

.btn{
  border:1px solid var(--border);
  background:var(--surface-alt);
  color:var(--text);
  padding:0.55rem 1rem;
  border-radius:999px;
  cursor:pointer;
  font-weight:600;
  transition:transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.btn:hover{
  border-color:var(--primary);
  transform:translateY(-1px);
  box-shadow:0 8px 18px rgba(255,107,53,0.2);
}

.btn:disabled{
  opacity:0.55;
  cursor:not-allowed;
  transform:none;
  box-shadow:none;
}

.btn.primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-strong));
  color:#fff;
  border-color:transparent;
}

.btn.secondary{
  background:linear-gradient(135deg,var(--secondary),#2bb39b);
  color:#fff;
  border-color:transparent;
}

.btn.small{
  padding:0.35rem 0.75rem;
  font-size:0.85rem;
}

.btn.file-btn{
  position:relative;
  overflow:hidden;
}

.btn.file-btn input{
  position:absolute;
  inset:0;
  opacity:0;
  cursor:pointer;
}

#report{
  font-size:0.85rem;
  color:var(--muted);
  padding:0.2rem 0.6rem;
  border-radius:999px;
  background:rgba(255,255,255,0.6);
  border:1px dashed var(--border);
}

@media (prefers-color-scheme: dark){
  #report{background:rgba(20,24,30,0.7);}
}

.quick-emojis{
  margin:1rem 0 0.6rem;
  display:flex;
  align-items:center;
  gap:0.75rem;
  flex-wrap:wrap;
}

.quick-label{
  font-size:0.9rem;
  color:var(--muted);
}

.emoji-chips{
  display:flex;
  flex-wrap:wrap;
  gap:0.5rem;
}

.emoji-chip{
  font-size:1.4rem;
  padding:0.25rem 0.55rem;
  border:1px solid var(--border);
  background:var(--surface-alt);
  border-radius:12px;
  cursor:pointer;
  transition:transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.emoji-chip:hover{
  transform:translateY(-3px) scale(1.12);
  box-shadow:0 10px 22px rgba(30,24,20,0.15);
  border-color:var(--primary);
  background:var(--surface);
}

textarea{
  width:100%;
  min-height:110px;
  resize:vertical;
  border:1px solid var(--border);
  border-radius:12px;
  padding:0.85rem;
  background:var(--surface-alt);
  color:inherit;
  font-size:1rem;
  line-height:1.5;
}

textarea.dragover{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(255,107,53,0.2);
}

textarea:focus,
input:focus,
select:focus{
  outline:none;
  box-shadow:0 0 0 3px rgba(255,107,53,0.2);
  border-color:var(--primary);
}

.hint{
  color:var(--muted);
  margin-top:0.6rem;
}

.grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(190px,1fr));
  gap:0.9rem;
  margin:0.75rem 0;
}

label{
  display:flex;
  flex-direction:column;
  gap:0.35rem;
  font-weight:600;
  color:var(--text);
}

label.is-disabled{
  opacity:0.6;
}

input[type="number"],
input[type="text"],
select,
input[type="color"],
input[type="range"]{
  padding:0.55rem;
  border:1px solid var(--border);
  border-radius:12px;
  background:var(--surface-alt);
  color:inherit;
  font-weight:500;
}

input[type="color"]{
  height:44px;
  padding:0.2rem;
}

.checkbox{
  display:flex;
  flex-direction:row;
  gap:0.55rem;
  align-items:center;
  margin-top:0.4rem;
  font-weight:600;
}

.toggle-row{
  display:flex;
  flex-wrap:wrap;
  gap:1rem;
  margin:0.5rem 0 1rem;
}

.range-row{
  display:flex;
  align-items:center;
  gap:0.6rem;
}

.range-row input[type="range"]{
  flex:1;
}

.range-row input[type="number"]{
  max-width:90px;
}

.gallery{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(190px,1fr));
  gap:1rem;
}

.card{
  border:1px solid var(--border);
  border-radius:18px;
  padding:0.85rem;
  background:var(--surface-alt);
  box-shadow:0 8px 20px rgba(30,24,20,0.07);
  display:flex;
  flex-direction:column;
  gap:0.75rem;
  transition:transform 0.22s ease, box-shadow 0.22s ease;
  animation:cardAppear 0.3s ease both;
}

.card:hover{
  transform:translateY(-3px) scale(1.02);
  box-shadow:0 16px 36px rgba(30,24,20,0.14);
}

@keyframes cardAppear{
  from{opacity:0;transform:translateY(12px) scale(0.97)}
  to{opacity:1;transform:translateY(0) scale(1)}
}

.card .thumb{
  display:flex;
  align-items:center;
  justify-content:center;
  aspect-ratio:1/1;
  border-radius:14px;
  border:1px dashed var(--border);
  background-image:
    linear-gradient(45deg,rgba(0,0,0,0.05) 25%,transparent 25%),
    linear-gradient(-45deg,rgba(0,0,0,0.05) 25%,transparent 25%),
    linear-gradient(45deg,transparent 75%,rgba(0,0,0,0.05) 75%),
    linear-gradient(-45deg,transparent 75%,rgba(0,0,0,0.05) 75%);
  background-size:16px 16px;
  background-position:0 0,0 8px,8px -8px,-8px 0px;
}

@media (prefers-color-scheme: dark){
  .card .thumb{
    background-image:
      linear-gradient(45deg,rgba(255,255,255,0.06) 25%,transparent 25%),
      linear-gradient(-45deg,rgba(255,255,255,0.06) 25%,transparent 25%),
      linear-gradient(45deg,transparent 75%,rgba(255,255,255,0.06) 75%),
      linear-gradient(-45deg,transparent 75%,rgba(255,255,255,0.06) 75%);
  }
}

.card img{
  max-width:80%;
  max-height:80%;
}

.card img.clickable{
  cursor:pointer;
}

.card .meta{
  display:flex;
  flex-direction:column;
  gap:0.6rem;
  font-size:0.9rem;
  color:var(--muted);
}

.card .meta-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:0.5rem;
}

.card .filename{
  font-weight:600;
  color:var(--text);
  word-break:break-all;
}

.code-pill{
  border:1px solid var(--border);
  padding:0.2rem 0.6rem;
  border-radius:999px;
  font-size:0.75rem;
  color:var(--muted);
  background:var(--surface);
  cursor:pointer;
}

.card .actions{
  display:flex;
  gap:0.5rem;
  flex-wrap:wrap;
}

.footer{
  margin:1rem 0;
  color:var(--muted);
  font-size:0.9rem;
}

.muted{color:var(--muted);}

@media (max-width:720px){
  .header{padding:1.3rem}
  .header .title{font-size:1.7rem}
  .grid{grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}
  .gallery{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}
}

@media (prefers-reduced-motion: reduce){
  *{transition:none!important;animation:none!important}
}

/* Emoji Browser */
.emoji-browser-section{
  margin:0.6rem 0;
}

.emoji-browser-toggle{
  display:flex;
  align-items:center;
  gap:0.5rem;
  font-size:0.9rem;
}

.emoji-browser-toggle .toggle-arrow{
  font-size:0.7rem;
  transition:transform 0.3s ease;
}

.emoji-browser-toggle.active .toggle-arrow{
  transform:rotate(180deg);
}

.emoji-browser{
  margin-top:0.6rem;
  border:1px solid var(--border);
  border-radius:12px;
  overflow:hidden;
  animation:slideDown 0.3s ease;
}

@keyframes slideDown{
  from{opacity:0;max-height:0}
  to{opacity:1;max-height:500px}
}

.emoji-browser-tabs{
  display:flex;
  gap:0;
  overflow-x:auto;
  border-bottom:1px solid var(--border);
  background:var(--surface-alt);
  scrollbar-width:thin;
}

.emoji-tab{
  flex:0 0 auto;
  padding:0.55rem 1rem;
  border:none;
  background:transparent;
  color:var(--muted);
  cursor:pointer;
  font-weight:600;
  font-size:0.85rem;
  border-bottom:2px solid transparent;
  transition:color 0.2s ease, border-color 0.2s ease;
  white-space:nowrap;
}

.emoji-tab:hover{
  color:var(--text);
}

.emoji-tab.active{
  color:var(--primary);
  border-bottom-color:var(--primary);
}

.emoji-browser-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(38px,1fr));
  gap:2px;
  padding:0.6rem;
  max-height:200px;
  overflow-y:auto;
}

.emoji-browser-grid button{
  font-size:1.4rem;
  padding:0.25rem;
  border:1px solid transparent;
  background:transparent;
  border-radius:8px;
  cursor:pointer;
  transition:transform 0.15s ease, background 0.15s ease;
  line-height:1;
  text-align:center;
}

.emoji-browser-grid button:hover{
  transform:scale(1.2);
  background:var(--surface-alt);
  border-color:var(--border);
}

/* Collapsible Sections */
.collapsible-section{
  border:1px solid var(--border);
  border-radius:12px;
  margin:0.6rem 0;
  overflow:hidden;
  background:var(--surface-alt);
}

.collapsible-section summary{
  padding:0.65rem 1rem;
  font-weight:700;
  cursor:pointer;
  user-select:none;
  display:flex;
  align-items:center;
  gap:0.5rem;
  list-style:none;
  color:var(--text);
  transition:background 0.2s ease;
}

.collapsible-section summary::-webkit-details-marker{display:none}

.collapsible-section summary::before{
  content:"▶";
  font-size:0.65rem;
  transition:transform 0.3s ease;
  color:var(--muted);
}

.collapsible-section[open] summary::before{
  transform:rotate(90deg);
}

.collapsible-section summary:hover{
  background:rgba(255,107,53,0.06);
}

.section-body{
  padding:0.5rem 1rem 0.85rem;
  animation:sectionExpand 0.3s ease;
}

@keyframes sectionExpand{
  from{opacity:0;transform:translateY(-8px)}
  to{opacity:1;transform:translateY(0)}
}

.pattern-hint-label{
  justify-content:flex-end;
}

.pattern-hint{
  margin:0;
  font-size:0.8rem;
}

/* Size Comparison */
.size-comparison{
  margin-bottom:1rem;
  padding:0.85rem;
  border:1px solid var(--border);
  border-radius:12px;
  background:var(--surface-alt);
}

.comparison-title{
  margin:0 0 0.6rem;
  font-size:0.95rem;
  color:var(--muted);
}

.comparison-grid{
  display:flex;
  align-items:flex-end;
  gap:1rem;
  overflow-x:auto;
  padding-bottom:0.5rem;
}

.comparison-item{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:0.35rem;
  flex-shrink:0;
}

.comparison-item canvas{
  border:1px dashed var(--border);
  border-radius:8px;
  background-image:
    linear-gradient(45deg,rgba(0,0,0,0.05) 25%,transparent 25%),
    linear-gradient(-45deg,rgba(0,0,0,0.05) 25%,transparent 25%),
    linear-gradient(45deg,transparent 75%,rgba(0,0,0,0.05) 75%),
    linear-gradient(-45deg,transparent 75%,rgba(0,0,0,0.05) 75%);
  background-size:8px 8px;
  background-position:0 0,0 4px,4px -4px,-4px 0px;
}

@media (prefers-color-scheme: dark){
  .comparison-item canvas{
    background-image:
      linear-gradient(45deg,rgba(255,255,255,0.06) 25%,transparent 25%),
      linear-gradient(-45deg,rgba(255,255,255,0.06) 25%,transparent 25%),
      linear-gradient(45deg,transparent 75%,rgba(255,255,255,0.06) 75%),
      linear-gradient(-45deg,transparent 75%,rgba(255,255,255,0.06) 75%);
  }
}

.comparison-item .comp-label{
  font-size:0.75rem;
  color:var(--muted);
  font-weight:600;
}

/* Parallax header */
.header{
  will-change:transform;
  transition:transform 0.1s linear;
}

/* Skeleton cards */
.card-skeleton{
  border:1px solid var(--border);
  border-radius:18px;
  padding:0.85rem;
  background:var(--surface-alt);
  display:flex;
  flex-direction:column;
  gap:0.75rem;
  animation:skeletonPulse 1.2s ease-in-out infinite;
}

.card-skeleton .skel-thumb{
  aspect-ratio:1/1;
  border-radius:14px;
  background:var(--border);
}

.card-skeleton .skel-line{
  height:14px;
  border-radius:7px;
  background:var(--border);
}

.card-skeleton .skel-line.short{
  width:60%;
}

@keyframes skeletonPulse{
  0%,100%{opacity:1}
  50%{opacity:0.5}
}

/* Gallery masonry-like */
.gallery .card{
  animation-delay:calc(var(--i, 0) * 0.05s);
}

.gallery .card .thumb{
  min-height:100px;
}