/* ==========================================================================
   avatar.css — DangThang Avatar Studio
   3-column editor: frame library · canvas · controls
   ========================================================================== */

/* -----------------------------
   1. Compact hero
----------------------------- */
.av-hero {
  position: relative;
  padding: 28px 0 40px;
  background: var(--grad-hero);
  overflow: hidden;
}
.av-hero-bg { position: absolute; inset: 0; pointer-events: none; }
.av-hero-container { position: relative; text-align: center; }
.av-hero-head { max-width: 720px; margin: 0 auto; }
.av-hero-title {
  margin: 16px 0 12px;
  font-size: clamp(28px, 3.8vw, 44px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 800;
}
.av-hero-sub {
  margin: 0 auto;
  max-width: 540px;
  font-size: 15.5px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* -----------------------------
   2. Editor layout
----------------------------- */
.av-editor-section {
  padding: 24px 0 80px;
  background: var(--bg);
}
.av-editor {
  display: grid;
  grid-template-columns: 280px 1fr 300px;
  gap: 18px;
  min-height: 680px;
}
.av-left, .av-right {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: var(--shadow-sm);
}

/* Panel head shared */
.panel-head {
  display: flex; justify-content: space-between; align-items: center;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.panel-title { margin: 0; font-size: 14.5px; font-weight: 700; color: var(--text); }
.panel-sub { font-size: 11.5px; color: var(--text-muted); display: block; margin-top: 2px; }
.icon-btn-sm {
  width: 28px; height: 28px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 7px;
  color: var(--text-soft);
  background: var(--bg);
  border: 1px solid var(--border);
  transition: all .15s var(--ease);
}
.icon-btn-sm:hover { color: var(--primary-700); border-color: var(--primary); }

/* -----------------------------
   3. Left panel — Frame library
----------------------------- */
.cat-tabs {
  display: flex; flex-wrap: wrap;
  gap: 5px;
}
.cat-tab {
  padding: 5px 10px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--text-soft);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  transition: all .15s var(--ease);
}
.cat-tab:hover { color: var(--primary-700); border-color: var(--primary); }
.cat-tab.is-active {
  background: var(--grad-primary);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 3px 8px rgba(0,174,239,0.3);
}

.frame-search {
  display: flex; align-items: center; gap: 7px;
  padding: 7px 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-muted);
}
.frame-search input {
  border: none; background: transparent; outline: none;
  flex: 1; font-size: 12.5px; color: var(--text);
  font-family: inherit;
}

.frame-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  overflow-y: auto;
  flex: 1;
  padding-right: 4px;
  scrollbar-width: thin;
}
.frame-grid::-webkit-scrollbar { width: 4px; }
.frame-grid::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 2px; }

.frame-item {
  position: relative;
  aspect-ratio: 1/1;
  border-radius: 10px;
  background:
    linear-gradient(45deg, rgba(0,174,239,0.04) 25%, transparent 25%) 0 0/10px 10px,
    linear-gradient(-45deg, rgba(0,174,239,0.04) 25%, transparent 25%) 0 5px/10px 10px,
    #fff;
  border: 2px solid transparent;
  cursor: pointer;
  overflow: hidden;
  transition: all .15s var(--ease);
}
.frame-item:hover { transform: translateY(-2px); box-shadow: 0 8px 16px rgba(0,174,239,0.18); }
.frame-item.is-active {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0,174,239,0.18);
}
.frame-item svg { width: 100%; height: 100%; }
.frame-item .fi-name {
  position: absolute;
  bottom: 4px; left: 4px; right: 4px;
  padding: 2px 6px;
  font-size: 10px;
  font-weight: 600;
  color: #fff;
  background: rgba(0,0,0,0.6);
  border-radius: 4px;
  text-align: center;
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity .15s var(--ease);
}
.frame-item:hover .fi-name { opacity: 1; }
.frame-item.is-active::after {
  content: '';
  position: absolute;
  top: 4px; right: 4px;
  width: 16px; height: 16px;
  background: var(--primary);
  border-radius: 50%;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='4' stroke-linecap='round' stroke-linejoin='round'><polyline points='20 6 9 17 4 12'/></svg>");
  background-size: 10px;
  background-position: center;
  background-repeat: no-repeat;
}

.frame-foot { margin-top: auto; }

/* -----------------------------
   4. Center — Canvas
----------------------------- */
.av-center {
  display: flex; flex-direction: column;
  gap: 12px;
  min-width: 0;
}

.canvas-toolbar {
  display: flex; align-items: center; gap: 14px;
  padding: 8px 10px;
  background: rgba(255,255,255,0.7) !important;
  backdrop-filter: blur(12px) saturate(160%);
  border: 1px solid var(--border) !important;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  flex-wrap: wrap;
}
.ct-group { display: inline-flex; align-items: center; gap: 4px; }
.ct-group-right { margin-left: auto; }
.ct-sep { width: 1px; height: 18px; background: var(--border); margin: 0 4px; }
.ct-btn {
  width: 30px; height: 30px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 7px;
  color: var(--text-soft);
  transition: all .15s var(--ease);
}
.ct-btn:hover { color: var(--primary-700); background: rgba(0,174,239,0.1); }
.ct-label {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 600;
  margin-right: 4px;
}
.ct-zoom-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-soft);
  padding: 0 8px;
}

.seg-sm { padding: 2px; }
.seg-sm .seg-btn { padding: 5px 8px; }

/* Canvas stage */
.canvas-stage {
  position: relative;
  flex: 1;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(180deg, #F4FBFF 0%, #E6F6FF 100%);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  min-height: 520px;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.03);
}
.canvas-checker {
  position: absolute; inset: 24px;
  border-radius: var(--r);
  background:
    linear-gradient(45deg, rgba(15,23,42,0.04) 25%, transparent 25%) 0 0/16px 16px,
    linear-gradient(-45deg, rgba(15,23,42,0.04) 25%, transparent 25%) 0 8px/16px 16px;
  pointer-events: none;
  opacity: .5;
}

.canvas-frame {
  position: relative;
  width: min(480px, 90%);
  aspect-ratio: 1/1;
  border-radius: 12px;
  box-shadow: 0 24px 60px rgba(0, 159, 227, 0.22), 0 8px 20px rgba(15, 23, 42, 0.08);
  overflow: visible;
}

/* User image — draggable */
.user-img-wrap {
  position: absolute;
  inset: 0;
  overflow: hidden;
  border-radius: 12px;
  cursor: grab;
  touch-action: none;
  transition: clip-path .25s var(--ease);
  clip-path: circle(50% at 50% 50%);
}
.user-img-wrap.crop-square { clip-path: inset(0 round 8px); }
.user-img-wrap.crop-rounded { clip-path: inset(0 round 20%); }
.user-img-wrap.dragging { cursor: grabbing; }
.user-img-wrap.dragging .user-img { transition: none; }
.user-img {
  position: absolute;
  top: 50%; left: 50%;
  width: 100%; height: 100%;
  transform-origin: center center;
  transition: transform .25s cubic-bezier(.2,.7,.2,1);
  user-select: none;
  -webkit-user-drag: none;
  pointer-events: none;
}

/* Crop mask outline */
.crop-mask {
  position: absolute; inset: 0;
  pointer-events: none;
  border-radius: 12px;
  transition: all .25s var(--ease);
}
.crop-mask.crop-circle::before {
  content: '';
  position: absolute; inset: 0;
  border-radius: 50%;
  box-shadow: 0 0 0 9999px rgba(255,255,255,0);
  border: 1px dashed rgba(0,174,239,0.3);
}

/* Frame overlay */
.frame-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  animation: frameIn .35s var(--ease);
  transition: opacity .2s var(--ease);
}
@keyframes frameIn {
  from { opacity: 0; transform: scale(0.92); }
  to   { opacity: 1; transform: scale(1); }
}

/* Upload CTA */
.upload-cta {
  position: absolute;
  top: 16px; left: 50%;
  transform: translateX(-50%);
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 18px;
  background: rgba(255,255,255,0.9);
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-700);
  backdrop-filter: blur(10px);
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: all .15s var(--ease);
}
.upload-cta:hover {
  background: linear-gradient(135deg, #00AEEF, #009FE3);
  color: #fff;
  border-color: transparent;
  transform: translateX(-50%) translateY(-1px);
}

/* Canvas hints */
.canvas-hints {
  display: flex; align-items: center; justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}
.hint {
  font-size: 11.5px;
  color: var(--text-muted);
  display: inline-flex; align-items: center; gap: 4px;
}
.hint kbd {
  display: inline-block;
  padding: 2px 6px;
  background: #fff;
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 600;
  color: var(--text);
}

/* -----------------------------
   5. Right panel — Controls
----------------------------- */
.ctrl-upload-btn {
  width: 100%;
  display: flex; align-items: center; gap: 10px;
  padding: 12px 14px;
  background: var(--bg);
  border: 1.5px dashed var(--border-strong);
  border-radius: 10px;
  color: var(--text-soft);
  text-align: left;
  cursor: pointer;
  transition: all .15s var(--ease);
}
.ctrl-upload-btn:hover { background: rgba(0,174,239,0.06); border-color: var(--primary); }
.ctrl-upload-btn svg { color: var(--primary); flex-shrink: 0; }
.up-title { font-size: 13px; font-weight: 600; color: var(--text); }
.up-sub { font-size: 11px; color: var(--text-muted); }

.ctrl-group { display: flex; flex-direction: column; gap: 6px; }
.ctrl-head {
  display: flex; justify-content: space-between; align-items: center;
}
.ctrl-head label {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-soft);
}
.ctrl-val {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-muted);
}

.ctrl-row {
  display: flex; align-items: center; gap: 6px;
}
.ctrl-row .range { flex: 1; }
.ctrl-mini {
  width: 26px; height: 26px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 6px;
  background: var(--bg);
  border: 1px solid var(--border);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-soft);
  cursor: pointer;
  transition: all .15s var(--ease);
}
.ctrl-mini:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

.ctrl-quick { display: flex; gap: 4px; margin-top: 6px; }
.quick-deg {
  flex: 1;
  padding: 5px 8px;
  font-size: 11px;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--text-soft);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  transition: all .15s var(--ease);
}
.quick-deg:hover { color: var(--primary-700); border-color: var(--primary); }

.ctrl-disclosure { border-top: 1px dashed var(--border); padding-top: 12px; margin-top: 4px; }
.ctrl-disclosure summary {
  list-style: none;
  display: flex; justify-content: space-between; align-items: center;
  cursor: pointer;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--text);
  padding: 4px 0;
}
.ctrl-disclosure summary::-webkit-details-marker { display: none; }
.ctrl-disclosure summary svg { transition: transform .2s var(--ease); }
.ctrl-disclosure[open] summary svg { transform: rotate(180deg); }
.ctrl-disclosure .ctrl-group { margin-top: 10px; }

.ctrl-export {
  margin-top: 4px;
  padding: 14px;
  background: linear-gradient(135deg, rgba(0,194,255,0.06), rgba(0,159,227,0.04));
  border: 1px solid rgba(0,174,239,0.2);
  border-radius: 12px;
}
.ctrl-export .ctrl-head { margin-bottom: 8px; }

.ctrl-mini-row {
  display: flex; gap: 5px;
  margin-top: 8px;
}
.ctrl-mini-row .rc-btn {
  flex: 1;
  padding: 7px 10px;
  font-size: 11.5px;
  justify-content: center;
  background: #fff;
}

.ctrl-note {
  margin: 0;
  display: flex; align-items: flex-start; gap: 6px;
  padding: 10px 12px;
  font-size: 11.5px;
  color: var(--text-muted);
  background: var(--bg);
  border-radius: 8px;
  line-height: 1.45;
}
.ctrl-note svg { color: var(--primary); flex-shrink: 0; margin-top: 2px; }

/* -----------------------------
   6. Frame gallery section
----------------------------- */
.av-gallery {
  padding: 72px 0 64px;
  background: #fff;
  border-top: 1px solid var(--border);
}
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.gal-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 18px;
  transition: all .2s var(--ease);
}
.gal-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--border-strong); }
.gal-thumb {
  aspect-ratio: 1/1;
  background:
    linear-gradient(45deg, rgba(0,174,239,0.04) 25%, transparent 25%) 0 0/14px 14px,
    linear-gradient(-45deg, rgba(0,174,239,0.04) 25%, transparent 25%) 0 7px/14px 14px,
    linear-gradient(135deg, #CFE9F7, #88C6E5);
  border-radius: var(--r);
  margin-bottom: 14px;
  position: relative;
  overflow: hidden;
}
.gal-frame { position: absolute; inset: 0; }
.gal-frame svg { width: 100%; height: 100%; }

.gal-meta { display: flex; flex-direction: column; gap: 2px; }
.gal-cat {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--primary-700);
}
.gal-card h4 { margin: 2px 0; font-size: 15.5px; font-weight: 700; }
.gal-count { font-size: 12px; color: var(--text-muted); font-family: var(--font-mono); }

/* -----------------------------
   7. Roadmap
----------------------------- */
.av-roadmap {
  padding: 72px 0;
  background: var(--bg);
  border-top: 1px solid var(--border);
}

/* -----------------------------
   8. Toast (reuse from shortlink)
----------------------------- */
.toast {
  position: fixed;
  bottom: 24px; left: 50%;
  transform: translateX(-50%) translateY(60px);
  display: flex; align-items: center; gap: 8px;
  padding: 12px 18px;
  background: #0F172A;
  color: #fff;
  border-radius: var(--r-pill);
  font-size: 13.5px;
  font-weight: 500;
  box-shadow: 0 12px 30px rgba(0,0,0,0.25);
  opacity: 0;
  transition: all .25s var(--ease);
  z-index: 100;
}
.toast.is-open { transform: translateX(-50%) translateY(0); opacity: 1; }
.toast[hidden] { display: flex; }
.toast svg { color: #10B981; }

/* Back chip (reused from shortlink style) */
.back-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px 6px 10px;
  background: rgba(255,255,255,0.7);
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-soft);
  margin-bottom: 22px;
  transition: all .15s var(--ease);
}
.back-chip:hover { color: var(--primary-700); border-color: var(--primary); transform: translateX(-2px); }

/* -----------------------------
   9. Responsive
----------------------------- */
@media (max-width: 1180px) {
  .av-editor {
    grid-template-columns: 240px 1fr 280px;
  }
}

@media (max-width: 1024px) {
  .av-editor {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .av-left { order: 2; }
  .av-center { order: 1; }
  .av-right { order: 3; }
  .frame-grid {
    grid-template-columns: repeat(4, 1fr);
    max-height: 280px;
  }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .av-hero { padding: 20px 0 28px; }
  .canvas-stage { min-height: 380px; }
  .canvas-frame { width: 88%; }
  .canvas-toolbar { gap: 8px; padding: 6px 8px; }
  .ct-group .ct-label { display: none; }
  .ct-group-right .ct-zoom-label { display: none; }
  .canvas-hints { gap: 8px; font-size: 10px; }
  .frame-grid { grid-template-columns: repeat(3, 1fr); }
  .gallery-grid { grid-template-columns: 1fr; }
}