/* SpriteSmith Studio v4 — style.css */

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

:root {
  --bg:       #0d0f14;
  --bg2:      #13161e;
  --bg3:      #1a1e2a;
  --border:   #2a2f3f;
  --border2:  #3a4055;
  --accent:   #7c6dfa;
  --accent2:  #a98bff;
  --amber:    #f5a623;
  --amber2:   #ffbe55;
  --green:    #4cffb3;
  --red:      #ff5a5a;
  --txt:      #d4d8e8;
  --txt2:     #7a80a0;
  --txt3:     #4a5070;
  --r:        8px;
  --hdr:      52px;
  --sb:       310px;
  --gap:      12px;
  --fpx:      'Press Start 2P', monospace;
  --fmono:    'Share Tech Mono', monospace;
}

html, body { height: 100%; background: var(--bg); color: var(--txt); font-family: var(--fmono); -webkit-font-smoothing: antialiased; overflow-x: hidden; }

#scanlines { pointer-events: none; position: fixed; inset: 0; z-index: 9999;
  background: repeating-linear-gradient(to bottom, transparent 0, transparent 2px, rgba(0,0,0,.07) 2px, rgba(0,0,0,.07) 4px); }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }

/* ── HEADER ── */
#header {
  position: fixed; top: 0; left: 0; right: 0; height: var(--hdr);
  background: var(--bg2); border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 16px; z-index: 100; gap: 12px;
}
.header-logo { display: flex; align-items: center; gap: 10px; }
.logo-mark   { width: 30px; height: 30px; color: var(--accent); flex-shrink: 0; }
.logo-text   { display: flex; flex-direction: column; line-height: 1; }
.logo-name   { font-family: var(--fpx); font-size: 10px; color: var(--txt); letter-spacing: 1px; }
.logo-tag    { font-size: 8px; color: var(--txt3); margin-top: 3px; letter-spacing: 1.5px; }
.header-actions { display: flex; align-items: center; gap: 8px; }
.save-status { font-size: 10px; color: var(--green); opacity: 0; transition: opacity .3s; }
.save-status.visible { opacity: 1; }

/* ── LAYOUT ── */
#layout { display: flex; margin-top: var(--hdr); min-height: calc(100vh - var(--hdr)); }

/* ── SIDEBAR ── */
#sidebar {
  width: var(--sb); min-width: var(--sb);
  background: var(--bg2); border-right: 1px solid var(--border);
  overflow-y: auto; padding: var(--gap);
  display: flex; flex-direction: column; gap: var(--gap);
  background-image: radial-gradient(rgba(124,109,250,.04) 1px, transparent 1px);
  background-size: 16px 16px;
}

/* ── PANELS ── */
.panel {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--r); padding: 12px;
  display: flex; flex-direction: column; gap: 10px;
}
.panel-hdr { display: flex; align-items: baseline; gap: 8px; border-bottom: 1px solid var(--border); padding-bottom: 8px; margin-bottom: 2px; }
.panel-num { font-family: var(--fpx); font-size: 8px; color: var(--accent); letter-spacing: 1px; }
.panel-ttl { font-family: var(--fpx); font-size: 7px; color: var(--txt2); letter-spacing: 1.5px; }
.panel-note { font-size: 10px; color: var(--txt3); line-height: 1.6; }

/* ── UPLOAD ── */
.upload-zone {
  border: 2px dashed var(--border2); border-radius: 6px; min-height: 110px;
  display: flex; align-items: center; justify-content: center;
  position: relative; transition: border-color .2s, background .2s; cursor: pointer;
}
.upload-zone:hover, .upload-zone.drag-over { border-color: var(--accent); background: rgba(124,109,250,.06); }
.upload-inner { text-align: center; padding: 14px; }
.upload-ico  { font-size: 26px; margin-bottom: 8px; }
.upload-msg  { font-size: 11px; color: var(--txt2); line-height: 1.6; }
.upload-msg u { color: var(--accent); cursor: pointer; }
.upload-sub  { margin-top: 5px; font-size: 9px; color: var(--txt3); letter-spacing: 1px; }
.upload-prev { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; padding: 10px; position: relative; }
.upload-prev img { max-width: 100%; max-height: 120px; object-fit: contain; border-radius: 4px; }
.clear-btn { position: absolute; top: 4px; right: 4px; width: 22px; height: 22px; background: var(--red); color: #fff; border: none; border-radius: 50%; font-size: 10px; cursor: pointer; display: flex; align-items: center; justify-content: center; }
.clear-btn:hover { background: #ff3333; }
.hidden { display: none !important; }

/* ── TEXTAREA ── */
.desc-input {
  width: 100%; background: var(--bg2); border: 1px solid var(--border2);
  border-radius: 5px; color: var(--txt); font-family: var(--fmono); font-size: 11px;
  padding: 8px 10px; resize: vertical; outline: none; line-height: 1.6;
}
.desc-input:focus { border-color: var(--accent); }
.desc-input::placeholder { color: var(--txt3); }

/* ── POSE GRID ── */
.pose-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.pose-btn {
  background: var(--bg2); border: 1px solid var(--border); border-radius: 6px;
  padding: 8px 4px; display: flex; flex-direction: column; align-items: center; gap: 5px;
  cursor: pointer; transition: border-color .15s, background .15s; color: var(--txt); font-family: var(--fmono);
}
.pose-btn:hover { border-color: var(--accent2); background: rgba(124,109,250,.06); }
.pose-btn.active { border-color: var(--accent); background: rgba(124,109,250,.14); }
.pose-ico { font-size: 20px; line-height: 1; }
.pose-lbl { font-size: 8px; color: var(--txt2); text-align: center; letter-spacing: .5px; }
.pose-btn.active .pose-lbl { color: var(--accent2); }

/* ── CONTROLS ── */
.ctl-row { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.ctl-lbl { font-size: 9px; color: var(--txt2); letter-spacing: .5px; white-space: nowrap; flex-shrink: 0; }
.tog-grp { display: flex; gap: 4px; flex-wrap: wrap; }
.tog {
  font-family: var(--fmono); font-size: 10px; background: var(--bg2);
  border: 1px solid var(--border); border-radius: 4px; padding: 4px 8px;
  color: var(--txt2); cursor: pointer; transition: all .15s;
}
.tog:hover  { border-color: var(--accent2); color: var(--txt); }
.tog.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.sel {
  background: var(--bg2); border: 1px solid var(--border2); color: var(--txt);
  font-family: var(--fmono); font-size: 11px; padding: 5px 8px;
  border-radius: 4px; cursor: pointer; outline: none;
}
.sel:focus { border-color: var(--accent); }

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font-family: var(--fpx); font-size: 8px; letter-spacing: .5px;
  padding: 9px 14px; border-radius: 5px; border: 1px solid transparent;
  cursor: pointer; transition: all .15s; white-space: nowrap;
}
.btn-w100 { width: 100%; }
.btn-sm   { padding: 5px 10px; font-size: 7px; }
.btn-ghost  { background: transparent; border-color: var(--border2); color: var(--txt2); }
.btn-ghost:hover { border-color: var(--accent2); color: var(--txt); }
.btn-primary { background: linear-gradient(135deg, var(--accent), #5c4fd6); border-color: var(--accent); color: #fff; }
.btn-primary:hover:not(:disabled) { background: linear-gradient(135deg, var(--accent2), var(--accent)); }
.btn-amber  { background: linear-gradient(135deg, var(--amber), #d4880a); border-color: var(--amber); color: #000; }
.btn-amber:hover:not(:disabled) { background: linear-gradient(135deg, var(--amber2), var(--amber)); }
.btn:disabled { opacity: .35; cursor: not-allowed; filter: grayscale(.5); }
.export-col { display: flex; flex-direction: column; gap: 8px; }

/* ── GENERATION PROGRESS ── */
.gen-progress { display: flex; flex-direction: column; gap: 6px; }
.gen-prog-track { height: 6px; background: var(--border); border-radius: 3px; overflow: hidden; }
.gen-prog-fill  { height: 100%; width: 0%; background: linear-gradient(90deg, var(--accent), var(--green)); border-radius: 3px; transition: width .4s; }
.gen-prog-label { font-size: 9px; color: var(--txt2); }

/* ── FRAME STRIP ── */
.frame-strip {
  display: flex; flex-wrap: wrap; gap: 5px; margin-top: 4px;
  max-height: 160px; overflow-y: auto;
}
.frame-thumb {
  width: 48px; height: 48px; border-radius: 4px; overflow: hidden;
  border: 1px solid var(--border); background: var(--bg2);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; position: relative;
}
.frame-thumb img   { width: 100%; height: 100%; object-fit: contain; image-rendering: pixelated; }
.frame-thumb.loading::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent 25%, rgba(124,109,250,.3) 50%, transparent 75%);
  background-size: 200% 100%;
  animation: shimmer 1.2s infinite;
}
.frame-thumb.error { border-color: var(--red); }
.frame-thumb .frame-num {
  position: absolute; bottom: 1px; right: 2px;
  font-size: 7px; color: var(--txt3); font-family: var(--fpx);
}
@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }

/* ── WORKSPACE ── */
#workspace { flex: 1; display: flex; flex-direction: column; gap: var(--gap); padding: var(--gap); overflow-y: auto; background: var(--bg); }
.ws-col    { display: flex; flex-direction: column; gap: 8px; }
.ws-lbl    { display: flex; align-items: center; justify-content: space-between; font-family: var(--fpx); font-size: 7px; letter-spacing: 1.5px; color: var(--txt3); padding: 0 4px; }
.ws-badge  { color: var(--accent2); font-size: 8px; }

.cw {
  background: var(--bg3); border: 1px solid var(--border); border-radius: var(--r);
  overflow: hidden; display: flex; align-items: center; justify-content: center;
  min-height: 320px; position: relative;
}
.cw-sheet { min-height: 180px; overflow-x: auto; justify-content: flex-start; padding: 12px; }

/* checker bg for transparency */
#previewWrap::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(45deg,#1e2232 25%,transparent 25%),
    linear-gradient(-45deg,#1e2232 25%,transparent 25%),
    linear-gradient(45deg,transparent 75%,#1e2232 75%),
    linear-gradient(-45deg,transparent 75%,#1e2232 75%);
  background-size: 20px 20px; background-position: 0 0,0 10px,10px -10px,-10px 0;
  border-radius: var(--r); pointer-events: none;
}
#previewCanvas { position: relative; z-index: 1; max-width: 100%; image-rendering: pixelated; }

canvas { image-rendering: pixelated; image-rendering: crisp-edges; max-width: 100%; border-radius: 4px; }

.cw-placeholder {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 12px; z-index: 2; pointer-events: none;
}
.ph-ico { font-size: 40px; opacity: .35; }
.cw-placeholder p { font-family: var(--fmono); font-size: 13px; color: var(--txt3); text-align: center; line-height: 1.7; }
.cw-placeholder strong { color: var(--txt2); }

/* ── TOAST ── */
.toast {
  position: fixed; bottom: 20px; left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--bg3); border: 1px solid var(--border2); color: var(--txt);
  font-family: var(--fmono); font-size: 12px; padding: 10px 20px;
  border-radius: 6px; z-index: 1000; opacity: 0; white-space: nowrap;
  transition: transform .3s cubic-bezier(.34,1.56,.64,1), opacity .3s;
  box-shadow: 0 8px 24px rgba(0,0,0,.5);
}
.toast.show  { transform: translateX(-50%) translateY(0); opacity: 1; }
.toast.ok    { border-color: var(--green); }
.toast.err   { border-color: var(--red); }
.toast.warn  { border-color: var(--amber); }

/* ── RESPONSIVE ── */
@media (max-width: 700px) {
  :root { --sb: 100%; }
  #layout { flex-direction: column; }
  #sidebar { width: 100%; min-width: unset; border-right: none; border-bottom: 1px solid var(--border); }
  .pose-grid { grid-template-columns: repeat(4,1fr); }
  .logo-tag { display: none; }
}
@media (min-width: 1100px) {
  #workspace { flex-direction: row; align-items: flex-start; }
  .ws-col { flex: 1; }
}