/* ================================================================
   PixelPro — Obsidian Lab UI
   Typography: Syne (display) + DM Sans (body) + JetBrains Mono
   Palette: Deep obsidian · Electric lime · Cyan accents
   ================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ── Variables ────────────────────────────────────────────────── */
:root {
  --bg:          #060709;
  --bg-2:        #0D0F18;
  --surface:     #131520;
  --surface-2:   #191C2C;
  --surface-3:   #202338;
  --border:      rgba(255,255,255,.06);
  --border-2:    rgba(255,255,255,.12);

  --primary:       #D4FF1C;
  --primary-dim:   rgba(212,255,28,.12);
  --primary-glow:  rgba(212,255,28,.28);
  --primary-text:  #060709;

  --cyan:    #00CFFF;
  --orange:  #FF7A45;
  --success: #00E89C;
  --warning: #FFB547;
  --error:   #FF4B4B;

  --text:   #ECEEFF;
  --text-2: #7B82A8;
  --text-3: #474E6B;

  --sidebar-w:    260px;
  --topbar-h:     60px;
  --radius-sm:    8px;
  --radius:       12px;
  --radius-lg:    18px;
  --radius-xl:    24px;

  --font-display: 'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --trans:    .18s cubic-bezier(.4,0,.2,1);
  --trans-slow: .35s cubic-bezier(.4,0,.2,1);

  --shadow:    0 4px 24px rgba(0,0,0,.45);
  --shadow-lg: 0 16px 56px rgba(0,0,0,.6);
}

[data-theme="light"] {
  --bg:        #F3F4F8;
  --bg-2:      #E9EAF0;
  --surface:   #FFFFFF;
  --surface-2: #F7F8FA;
  --surface-3: #EEF0F5;
  --border:    rgba(0,0,0,.07);
  --border-2:  rgba(0,0,0,.14);
  --primary:     #4E8800;
  --primary-dim: rgba(78,136,0,.1);
  --primary-glow:rgba(78,136,0,.2);
  --primary-text:#FFFFFF;
  --text:   #10131F;
  --text-2: #545B7A;
  --text-3: #8C93AE;
}

/* ── Reset ────────────────────────────────────────────────────── */
*,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; }
body { font-family:var(--font-body); background:var(--bg); color:var(--text); font-size:15px; line-height:1.6; -webkit-font-smoothing:antialiased; }
img,video { max-width:100%; display:block; }
button { cursor:pointer; font-family:inherit; border:none; background:none; }
input,select,textarea { font-family:inherit; }
a { color:inherit; text-decoration:none; }

/* ── Scrollbar ────────────────────────────────────────────────── */
::-webkit-scrollbar { width:6px; height:6px; }
::-webkit-scrollbar-track { background:transparent; }
::-webkit-scrollbar-thumb { background:var(--surface-3); border-radius:3px; }
::-webkit-scrollbar-thumb:hover { background:var(--text-3); }

/* ================================================================
   LOGIN PAGE
   ================================================================ */
.login-body { min-height:100vh; display:flex; align-items:center; justify-content:center; padding:24px; overflow:hidden; position:relative; }

.login-bg { position:fixed; inset:0; pointer-events:none; z-index:0; }
.login-grid {
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(212,255,28,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212,255,28,.04) 1px, transparent 1px);
  background-size:40px 40px;
}
.login-blob {
  position:absolute; border-radius:50%; filter:blur(100px); opacity:.35;
}
.blob-1 { width:600px; height:600px; top:-200px; right:-200px; background:radial-gradient(circle, var(--primary) 0%, transparent 70%); animation:blobFloat 8s ease-in-out infinite; }
.blob-2 { width:400px; height:400px; bottom:-100px; left:-100px; background:radial-gradient(circle, var(--cyan) 0%, transparent 70%); animation:blobFloat 10s ease-in-out infinite reverse; }
@keyframes blobFloat { 0%,100%{transform:translateY(0) scale(1)} 50%{transform:translateY(-30px) scale(1.05)} }

.login-container { position:relative; z-index:1; width:100%; max-width:420px; }

.login-card {
  background:var(--surface);
  border:1px solid var(--border-2);
  border-radius:var(--radius-xl);
  padding:44px 40px;
  box-shadow:var(--shadow-lg), 0 0 0 1px rgba(212,255,28,.06);
  transition:transform var(--trans-slow), opacity var(--trans-slow);
}

.login-brand { text-align:center; margin-bottom:36px; }
.brand-icon {
  width:72px; height:72px;
  background:linear-gradient(135deg, var(--primary-dim), rgba(212,255,28,.05));
  border:1px solid rgba(212,255,28,.25);
  border-radius:20px;
  display:flex; align-items:center; justify-content:center;
  margin:0 auto 20px;
  box-shadow:0 8px 32px var(--primary-glow);
}
.brand-name { font-family:var(--font-display); font-size:30px; font-weight:800; letter-spacing:-1px; }
.brand-tag  { color:var(--text-2); font-size:14px; margin-top:4px; }

.login-alert {
  background:rgba(255,75,75,.12); border:1px solid rgba(255,75,75,.28);
  color:#FF9090; padding:12px 16px; border-radius:var(--radius);
  font-size:14px; margin-bottom:20px;
}

.field-group { margin-bottom:18px; }
.field-label { display:block; font-size:13px; font-weight:500; color:var(--text-2); margin-bottom:8px; }
.field-wrap  { position:relative; }
.field-icon  {
  position:absolute; left:14px; top:50%; transform:translateY(-50%);
  color:var(--text-3); pointer-events:none;
}
.field-input {
  width:100%; padding:13px 40px;
  background:var(--surface-2); border:1px solid var(--border-2);
  border-radius:var(--radius); color:var(--text); font-size:15px;
  transition:border-color var(--trans), background var(--trans), box-shadow var(--trans);
}
.field-input:focus {
  outline:none; border-color:var(--primary);
  background:var(--primary-dim);
  box-shadow:0 0 0 3px var(--primary-glow);
}
.field-eye {
  position:absolute; right:12px; top:50%; transform:translateY(-50%);
  color:var(--text-3); padding:4px; transition:color var(--trans);
}
.field-eye:hover { color:var(--text); }

.login-row { display:flex; align-items:center; margin-bottom:24px; }

.checkbox-label {
  display:flex; align-items:center; gap:10px; cursor:pointer;
  font-size:14px; color:var(--text-2); user-select:none;
}
.checkbox-input { display:none; }
.checkbox-custom {
  width:18px; height:18px; flex-shrink:0;
  border:1px solid var(--border-2); border-radius:5px;
  background:var(--surface-2); transition:all var(--trans);
  display:flex; align-items:center; justify-content:center;
}
.checkbox-input:checked + .checkbox-custom {
  background:var(--primary); border-color:var(--primary);
}
.checkbox-input:checked + .checkbox-custom::after {
  content:''; width:10px; height:7px;
  border-left:2px solid var(--primary-text);
  border-bottom:2px solid var(--primary-text);
  transform:rotate(-45deg) translateY(-1px);
  display:block;
}

.login-footer { margin-top:24px; text-align:center; font-size:12px; color:var(--text-3); }

@keyframes shake {
  0%,100%{transform:translateX(0)} 20%{transform:translateX(-8px)} 40%{transform:translateX(8px)} 60%{transform:translateX(-4px)} 80%{transform:translateX(4px)}
}
.shake { animation:shake .45s ease; }

/* ================================================================
   APP LAYOUT
   ================================================================ */
body:not(.login-body) { display:flex; height:100vh; overflow:hidden; }

.sidebar {
  width:var(--sidebar-w); flex-shrink:0;
  background:var(--surface); border-right:1px solid var(--border);
  display:flex; flex-direction:column;
  position:fixed; left:0; top:0; bottom:0; z-index:100;
  transition:transform var(--trans-slow);
}
.sidebar-header {
  padding:20px 20px 16px;
  display:flex; align-items:center; justify-content:space-between;
  border-bottom:1px solid var(--border);
}
.sidebar-logo { display:flex; align-items:center; gap:12px; }
.logo-mark {
  width:40px; height:40px; flex-shrink:0;
  background:var(--primary-dim); border:1px solid rgba(212,255,28,.2);
  border-radius:11px; display:flex; align-items:center; justify-content:center;
}
.logo-text    { font-family:var(--font-display); font-size:18px; font-weight:800; letter-spacing:-.5px; display:block; }
.logo-version { font-family:var(--font-mono); font-size:10px; color:var(--text-3); display:block; margin-top:-2px; }

.sidebar-close { display:none; color:var(--text-2); padding:4px; border-radius:6px; }

.sidebar-nav {
  flex:1; padding:16px 12px; display:flex; flex-direction:column; gap:4px;
  overflow-y:auto;
}
.nav-item {
  display:flex; align-items:center; gap:12px;
  padding:11px 12px; border-radius:var(--radius-sm);
  color:var(--text-2); font-size:14px; font-weight:500;
  transition:all var(--trans); position:relative;
}
.nav-item:hover  { color:var(--text); background:var(--surface-2); }
.nav-item.active {
  color:var(--primary); background:var(--primary-dim);
  box-shadow:inset 0 0 0 1px rgba(212,255,28,.12);
}
.nav-item.active .nav-icon { color:var(--primary); }
.nav-icon { flex-shrink:0; transition:color var(--trans); }
.nav-badge {
  margin-left:auto; background:var(--primary); color:var(--primary-text);
  font-size:11px; font-weight:700; padding:2px 7px; border-radius:20px;
  font-family:var(--font-mono);
}

.sidebar-footer { padding:16px; border-top:1px solid var(--border); }
.user-card {
  display:flex; align-items:center; gap:10px;
  padding:10px 12px; border-radius:var(--radius);
  background:var(--surface-2); border:1px solid var(--border);
}
.user-avatar {
  width:36px; height:36px; flex-shrink:0;
  background:linear-gradient(135deg, var(--primary), #8BEB00);
  border-radius:10px; display:flex; align-items:center; justify-content:center;
  font-family:var(--font-display); font-size:16px; font-weight:700;
  color:var(--primary-text);
}
.user-info { flex:1; min-width:0; }
.user-name  { font-size:14px; font-weight:600; display:block; truncate:ellipsis; white-space:nowrap; overflow:hidden; }
.user-role  { font-size:11px; color:var(--text-3); display:block; font-family:var(--font-mono); }
.user-logout {
  flex-shrink:0; color:var(--text-3); padding:6px;
  border-radius:6px; transition:all var(--trans);
}
.user-logout:hover { color:var(--error); background:rgba(255,75,75,.1); }

.sidebar-overlay {
  display:none; position:fixed; inset:0; z-index:99;
  background:rgba(0,0,0,.6); backdrop-filter:blur(4px);
}

/* ── Main ──────────────────────────────────────────────────────── */
/*  app-main = clip container (overflow:hidden).
    app-content = the REAL scroll container (overflow-y:auto + min-height:0).
    min-height:0 on a flex child is the key: without it the child refuses to
    shrink below its content size, so overflow-y:auto never triggers.         */
.app-main {
  margin-left:var(--sidebar-w); flex:1;
  display:flex; flex-direction:column;
  height:100vh; overflow:hidden;
  min-width:0;
}
.topbar {
  flex-shrink:0;                  /* stays fixed at top, outside scroll area */
  z-index:50;
  height:var(--topbar-h); background:var(--surface);
  border-bottom:1px solid var(--border);
  display:flex; align-items:center; justify-content:space-between;
  padding:0 28px;
}
.topbar-left  { display:flex; align-items:center; gap:16px; }
.topbar-right { display:flex; align-items:center; gap:8px; }
.topbar-title { font-family:var(--font-display); font-size:18px; font-weight:700; letter-spacing:-.3px; }
.topbar-burger { display:none; color:var(--text-2); padding:8px; border-radius:8px; }
.topbar-btn {
  width:38px; height:38px; display:flex; align-items:center; justify-content:center;
  border-radius:var(--radius-sm); color:var(--text-2);
  border:1px solid var(--border); background:var(--surface-2);
  transition:all var(--trans);
}
.topbar-btn:hover { color:var(--text); border-color:var(--border-2); }

/* THE scroll container — min-height:0 is non-negotiable */
.app-content {
  flex:1;
  min-height:0;
  overflow-y:auto;
  -webkit-overflow-scrolling:touch;
  padding:28px;
  scroll-behavior:smooth;
}

/* ── Pages ──────────────────────────────────────────────────────── */
.page { display:none; animation:pageFade .25s ease; }
.page.active { display:block; }
@keyframes pageFade { from{opacity:0;transform:translateY(8px)} to{opacity:1;transform:none} }

.page-header {
  display:flex; align-items:flex-start; justify-content:space-between;
  flex-wrap:wrap; gap:16px; margin-bottom:28px;
}
.page-title { font-family:var(--font-display); font-size:26px; font-weight:800; letter-spacing:-.6px; }
.page-sub   { color:var(--text-2); font-size:14px; margin-top:4px; }
.page-actions { display:flex; gap:10px; align-items:center; }

/* ── Cards ──────────────────────────────────────────────────────── */
.card {
  background:var(--surface); border:1px solid var(--border);
  border-radius:var(--radius-lg); overflow:hidden; margin-bottom:20px;
}
.card-header {
  display:flex; align-items:center; justify-content:space-between;
  padding:18px 20px 0; flex-wrap:wrap; gap:10px;
}
.card-title { font-family:var(--font-display); font-size:15px; font-weight:700; letter-spacing:-.2px; }
.card-actions { display:flex; gap:8px; }

/* ── Buttons ────────────────────────────────────────────────────── */
.btn-primary {
  display:inline-flex; align-items:center; gap:8px;
  padding:10px 20px; background:var(--primary); color:var(--primary-text);
  border-radius:var(--radius); font-size:14px; font-weight:600;
  transition:all var(--trans); letter-spacing:-.2px;
}
.btn-primary:hover { opacity:.9; transform:translateY(-1px); box-shadow:0 6px 20px var(--primary-glow); }
.btn-primary:disabled { opacity:.4; pointer-events:none; }
.btn-primary.btn-full { width:100%; justify-content:center; padding:14px; font-size:15px; }
.btn-primary.btn-sm { padding:8px 14px; font-size:13px; }
.btn-primary.btn-lg { padding:14px 28px; font-size:15px; }

.btn-ghost {
  display:inline-flex; align-items:center; gap:6px;
  padding:9px 16px; color:var(--text-2);
  border:1px solid var(--border-2); border-radius:var(--radius);
  font-size:14px; font-weight:500;
  transition:all var(--trans);
}
.btn-ghost:hover { color:var(--text); border-color:var(--border-2); background:var(--surface-2); }
.btn-ghost.btn-sm { padding:6px 12px; font-size:13px; }

/* ── Stats Grid ──────────────────────────────────────────────────── */
.stats-grid {
  display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin-bottom:24px;
}
@media(max-width:1100px) { .stats-grid { grid-template-columns:repeat(2,1fr); } }
@media(max-width:600px)  { .stats-grid { grid-template-columns:1fr; } }

.stat-card {
  background:var(--surface); border:1px solid var(--border);
  border-radius:var(--radius-lg); padding:20px 22px; position:relative; overflow:hidden;
  transition:border-color var(--trans), box-shadow var(--trans);
}
.stat-card:hover { border-color:var(--border-2); }
.stat-card::before {
  content:''; position:absolute; inset:0; opacity:0;
  background:linear-gradient(135deg, var(--primary-dim), transparent);
  transition:opacity var(--trans);
}
.stat-card:hover::before { opacity:1; }
.stat-icon {
  width:40px; height:40px; border-radius:10px;
  display:flex; align-items:center; justify-content:center;
  margin-bottom:16px; position:relative;
}
.stat-icon.lime   { background:var(--primary-dim); color:var(--primary); }
.stat-icon.cyan   { background:rgba(0,207,255,.12); color:var(--cyan); }
.stat-icon.green  { background:rgba(0,232,156,.12); color:var(--success); }
.stat-icon.orange { background:rgba(255,122,69,.12); color:var(--orange); }
.stat-val  { font-family:var(--font-mono); font-size:28px; font-weight:600; letter-spacing:-1px; line-height:1; }
.stat-label{ font-size:13px; color:var(--text-2); margin-top:6px; }
.stat-delta{ font-size:12px; color:var(--success); margin-top:4px; font-family:var(--font-mono); }

.stat-card.loading { min-height:110px; }
.stat-shimmer { position:absolute; inset:0; border-radius:inherit; overflow:hidden; }
.stat-shimmer::after {
  content:''; position:absolute; inset:0;
  background:linear-gradient(90deg, transparent 0%, var(--surface-2) 50%, transparent 100%);
  animation:shimmer 1.6s infinite;
}
@keyframes shimmer { from{transform:translateX(-100%)} to{transform:translateX(100%)} }

/* ── Dashboard ──────────────────────────────────────────────────── */
.dash-grid { display:grid; grid-template-columns:1fr 340px; gap:20px; }
@media(max-width:1050px) { .dash-grid { grid-template-columns:1fr; } }

.recent-list { padding:12px 0; }
.recent-item {
  display:flex; align-items:center; gap:14px;
  padding:12px 20px; transition:background var(--trans);
}
.recent-item:hover { background:var(--surface-2); }
.recent-thumb {
  width:48px; height:48px; border-radius:var(--radius-sm); object-fit:cover;
  background:var(--surface-3); flex-shrink:0; border:1px solid var(--border);
}
.recent-thumb-ph {
  width:48px; height:48px; border-radius:var(--radius-sm); flex-shrink:0;
  background:var(--surface-3); border:1px solid var(--border);
  display:flex; align-items:center; justify-content:center;
  font-size:18px; color:var(--text-3);
}
.recent-info { flex:1; min-width:0; }
.recent-name { font-size:13px; font-weight:500; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.recent-meta { font-size:11px; color:var(--text-3); margin-top:2px; font-family:var(--font-mono); }
.recent-badge { flex-shrink:0; }

.savings-badge {
  display:inline-flex; align-items:center;
  padding:3px 9px; border-radius:20px; font-size:11px; font-weight:600;
  font-family:var(--font-mono);
}
.savings-badge.good { background:rgba(0,232,156,.12); color:var(--success); }
.savings-badge.warn { background:rgba(255,181,71,.12); color:var(--warning); }
.savings-badge.zero { background:var(--surface-3); color:var(--text-3); }

.quick-actions { padding:4px 0 12px; display:flex; flex-direction:column; }
.quick-action {
  display:flex; align-items:center; gap:14px;
  padding:14px 20px; transition:background var(--trans); text-align:left;
}
.quick-action:hover { background:var(--surface-2); }
.qa-icon {
  width:40px; height:40px; border-radius:10px; flex-shrink:0;
  display:flex; align-items:center; justify-content:center;
}
.qa-compress{ background:var(--primary-dim); color:var(--primary); }
.qa-convert { background:rgba(0,207,255,.12); color:var(--cyan); }
.qa-resize  { background:rgba(0,232,156,.12); color:var(--success); }
.qa-batch   { background:rgba(255,122,69,.12); color:var(--orange); }
.qa-title   { font-size:14px; font-weight:600; }
.qa-desc    { font-size:12px; color:var(--text-2); margin-top:2px; }

/* ── Upload Zone ────────────────────────────────────────────────── */
.upload-zone {
  border:2px dashed var(--border-2);
  border-radius:var(--radius-xl); padding:60px 40px;
  text-align:center; cursor:pointer;
  transition:all var(--trans); background:var(--surface); position:relative;
  margin-bottom:24px;
}
.upload-zone:hover,
.upload-zone.drag-over {
  border-color:var(--primary);
  background:var(--primary-dim);
  box-shadow:0 0 0 4px var(--primary-glow);
}
.upload-inner { display:flex; flex-direction:column; align-items:center; gap:16px; }
.upload-icon { color:var(--text-3); transition:color var(--trans); }
.upload-zone:hover .upload-icon,
.upload-zone.drag-over .upload-icon { color:var(--primary); }
.upload-text h3 { font-family:var(--font-display); font-size:20px; font-weight:700; }
.upload-text p  { color:var(--text-2); font-size:14px; margin-top:6px; }
.upload-link { color:var(--primary); font-weight:600; background:none; border:none; cursor:pointer; font-size:inherit; }
.upload-hint { font-size:12px; color:var(--text-3) !important; margin-top:4px !important; }

.upload-progress { padding:20px 0; }
.progress-bar  { height:4px; background:var(--surface-3); border-radius:2px; overflow:hidden; margin-bottom:10px; }
.progress-fill { height:100%; background:var(--primary); border-radius:2px; transition:width .3s ease; }

/* ── Optimize Layout ────────────────────────────────────────────── */
.optimize-layout { display:grid; grid-template-columns:1fr 340px; gap:20px; margin-bottom:24px; }
@media(max-width:960px) { .optimize-layout { grid-template-columns:1fr; } }

.file-panel, .options-panel {
  background:var(--surface); border:1px solid var(--border);
  border-radius:var(--radius-lg); overflow:hidden;
}
.panel-header {
  display:flex; align-items:center; justify-content:space-between;
  padding:16px 18px; border-bottom:1px solid var(--border);
}
.panel-title { font-family:var(--font-display); font-size:14px; font-weight:700; }
.count-badge {
  display:inline-flex; align-items:center;
  background:var(--surface-3); color:var(--text-2);
  font-size:11px; font-weight:600; padding:2px 8px;
  border-radius:20px; margin-left:8px;
  font-family:var(--font-mono);
}
.count-badge.success { background:rgba(0,232,156,.12); color:var(--success); }

.file-list { max-height:400px; overflow-y:auto; }
.file-item {
  display:flex; align-items:center; gap:12px;
  padding:12px 16px; cursor:pointer;
  border-bottom:1px solid var(--border); transition:background var(--trans);
  position:relative;
}
.file-item:last-child { border-bottom:none; }
.file-item:hover { background:var(--surface-2); }
.file-item.selected { background:var(--primary-dim); border-left:3px solid var(--primary); }
.file-thumb {
  width:44px; height:44px; object-fit:cover; border-radius:var(--radius-sm);
  background:var(--surface-3); border:1px solid var(--border); flex-shrink:0;
}
.file-thumb-ph {
  width:44px; height:44px; flex-shrink:0;
  background:var(--surface-3); border:1px solid var(--border);
  border-radius:var(--radius-sm); display:flex; align-items:center;
  justify-content:center; font-size:16px;
}
.file-info { flex:1; min-width:0; }
.file-name { font-size:13px; font-weight:500; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.file-size { font-size:11px; color:var(--text-3); font-family:var(--font-mono); margin-top:2px; }
.file-dims { font-size:11px; color:var(--text-3); font-family:var(--font-mono); }
.file-remove {
  opacity:0; color:var(--text-3); padding:4px;
  border-radius:5px; transition:all var(--trans);
}
.file-item:hover .file-remove { opacity:1; }
.file-remove:hover { color:var(--error); background:rgba(255,75,75,.1); }

/* ── Tabs ───────────────────────────────────────────────────────── */
.tabs-row {
  display:flex; border-bottom:1px solid var(--border);
  padding:0 16px; overflow-x:auto;
  scrollbar-width:none;
}
.tabs-row::-webkit-scrollbar { display:none; }
.tab {
  padding:14px 14px; font-size:13px; font-weight:500;
  color:var(--text-2); border-bottom:2px solid transparent;
  white-space:nowrap; transition:all var(--trans);
}
.tab:hover { color:var(--text); }
.tab.active { color:var(--primary); border-color:var(--primary); }

.tab-pane { display:none; padding:20px; }
.tab-pane.active { display:block; }

/* ── Options Controls ───────────────────────────────────────────── */
.option-section { margin-bottom:20px; }
.option-label { display:block; font-size:12px; font-weight:500; color:var(--text-2); margin-bottom:10px; text-transform:uppercase; letter-spacing:.5px; }
.option-value { color:var(--primary); font-family:var(--font-mono); font-weight:600; font-size:12px; }

.slider {
  -webkit-appearance:none; width:100%; height:4px;
  background:var(--surface-3); border-radius:2px; outline:none;
  cursor:pointer;
}
.slider::-webkit-slider-thumb {
  -webkit-appearance:none; width:18px; height:18px;
  background:var(--primary); border-radius:50%;
  box-shadow:0 0 0 3px var(--primary-glow);
  transition:box-shadow var(--trans);
  cursor:pointer;
}
.slider::-webkit-slider-thumb:hover { box-shadow:0 0 0 6px var(--primary-glow); }
.slider.slider-sm { height:3px; }
.slider.slider-sm::-webkit-slider-thumb { width:14px; height:14px; }

.slider-marks { display:flex; justify-content:space-between; margin-top:8px; }
.slider-marks span { font-size:11px; color:var(--text-3); }

.preset-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:8px; }
.preset-btn {
  padding:10px 12px; border:1px solid var(--border-2);
  border-radius:var(--radius-sm); font-size:13px; font-weight:500; color:var(--text-2);
  display:flex; flex-direction:column; align-items:center; gap:2px;
  transition:all var(--trans);
}
.preset-btn span { font-size:11px; color:var(--text-3); font-family:var(--font-mono); }
.preset-btn:hover,
.preset-btn.active { border-color:var(--primary); background:var(--primary-dim); color:var(--primary); }
.preset-btn.active span { color:var(--primary); }

.toggle-row {
  display:flex; align-items:center; justify-content:space-between;
  margin-bottom:16px; gap:12px;
}
.toggle-label { font-size:14px; font-weight:500; color:var(--text); }
.toggle { position:relative; display:inline-block; width:42px; height:24px; flex-shrink:0; }
.toggle input { opacity:0; width:0; height:0; }
.toggle-track {
  position:absolute; inset:0; background:var(--surface-3);
  border-radius:12px; cursor:pointer; transition:all var(--trans);
  border:1px solid var(--border-2);
}
.toggle-track::before {
  content:''; position:absolute; width:18px; height:18px;
  left:2px; top:2px; background:#fff; border-radius:50%;
  transition:transform var(--trans);
}
input:checked + .toggle-track { background:var(--primary); border-color:var(--primary); }
input:checked + .toggle-track::before { transform:translateX(18px); background:var(--primary-text); }

.field-row { display:flex; align-items:flex-end; gap:10px; margin-bottom:16px; }
.field-row .field-group { flex:1; }
.text-input {
  width:100%; padding:10px 13px;
  background:var(--surface-2); border:1px solid var(--border-2);
  border-radius:var(--radius-sm); color:var(--text); font-size:14px;
  transition:border-color var(--trans), box-shadow var(--trans);
}
.text-input:focus { outline:none; border-color:var(--primary); box-shadow:0 0 0 3px var(--primary-glow); }
.text-input.text-input-sm { padding:8px 11px; font-size:13px; }

.select-input {
  padding:9px 12px; background:var(--surface-2);
  border:1px solid var(--border-2); border-radius:var(--radius-sm);
  color:var(--text); font-size:14px; font-family:inherit;
  cursor:pointer; transition:border-color var(--trans);
}
.select-input:focus { outline:none; border-color:var(--primary); }

.resize-fields { transition:opacity var(--trans), pointer-events 0s; }
.resize-link {
  flex-shrink:0; width:32px; height:32px;
  display:flex; align-items:center; justify-content:center;
  color:var(--text-3); border:1px solid var(--border-2);
  border-radius:8px; margin-bottom:0; cursor:pointer;
  transition:all var(--trans);
}
.resize-link:hover { color:var(--primary); border-color:var(--primary); }

.format-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:8px; margin-top:8px; margin-bottom:12px; }
.format-btn {
  border:1px solid var(--border-2); border-radius:var(--radius-sm);
  text-align:center; cursor:pointer; transition:all var(--trans);
}
.format-btn input { display:none; }
.format-btn span { display:block; padding:9px; font-size:13px; font-weight:600; font-family:var(--font-mono); }
.format-btn:has(input:checked),
.format-btn.active {
  border-color:var(--primary); background:var(--primary-dim);
  color:var(--primary);
}
.format-note { font-size:12px; color:var(--text-2); padding:10px 12px; background:var(--surface-2); border-radius:var(--radius-sm); }

.crop-note { font-size:13px; color:var(--text-2); padding:12px; background:var(--surface-2); border-radius:var(--radius-sm); margin-bottom:16px; }
.crop-canvas-wrap { position:relative; margin-bottom:16px; max-height:280px; overflow:hidden; border-radius:var(--radius); }
#cropCanvas { display:block; max-width:100%; }
.crop-overlay { position:absolute; inset:0; }
.crop-selection {
  position:absolute; border:2px solid var(--primary);
  box-shadow:0 0 0 9999px rgba(0,0,0,.5);
  cursor:move;
}
.crop-handle {
  position:absolute; width:12px; height:12px;
  background:var(--primary); border:2px solid var(--primary-text);
  border-radius:2px;
}
.crop-handle.tl { top:-6px; left:-6px; cursor:nw-resize; }
.crop-handle.tr { top:-6px; right:-6px; cursor:ne-resize; }
.crop-handle.bl { bottom:-6px; left:-6px; cursor:sw-resize; }
.crop-handle.br { bottom:-6px; right:-6px; cursor:se-resize; }

.position-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:6px; margin-top:8px; }
.pos-btn {
  padding:10px; font-size:18px; border:1px solid var(--border-2);
  border-radius:var(--radius-sm); transition:all var(--trans);
  color:var(--text-2);
}
.pos-btn:nth-child(5) { grid-column:2; }
.pos-btn:hover,
.pos-btn.active { border-color:var(--primary); background:var(--primary-dim); color:var(--primary); }

.watermark-opts,
.convert-options,
.resize-fields,
.crop-ui { transition:opacity var(--trans); }

/* ── Results ────────────────────────────────────────────────────── */
.results-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(240px,1fr)); gap:16px; padding:16px; }

.result-card {
  border:1px solid var(--border); border-radius:var(--radius);
  overflow:hidden; transition:all var(--trans); background:var(--surface-2);
}
.result-card:hover { border-color:var(--border-2); transform:translateY(-2px); box-shadow:var(--shadow); }
.result-thumb-wrap { position:relative; height:150px; overflow:hidden; background:var(--surface-3); cursor:pointer; }
.result-thumb { width:100%; height:100%; object-fit:cover; }
.result-thumb-ph { width:100%; height:100%; display:flex; align-items:center; justify-content:center; font-size:36px; }
.result-compare-btn {
  position:absolute; inset:0; display:flex; align-items:center; justify-content:center;
  background:rgba(0,0,0,.5); opacity:0; transition:opacity var(--trans);
  font-size:12px; font-weight:600; color:#fff; gap:6px;
}
.result-thumb-wrap:hover .result-compare-btn { opacity:1; }
.result-savings {
  position:absolute; top:8px; right:8px;
  padding:3px 8px; border-radius:20px; font-size:11px; font-weight:700;
  font-family:var(--font-mono); background:var(--primary); color:var(--primary-text);
}
.result-savings.increased { background:var(--error); color:#fff; }

.result-body { padding:12px 14px; }
.result-name { font-size:13px; font-weight:600; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; margin-bottom:8px; }
.result-stats { display:flex; justify-content:space-between; gap:8px; margin-bottom:10px; }
.result-stat { text-align:center; }
.result-stat-val   { font-size:13px; font-weight:600; font-family:var(--font-mono); display:block; }
.result-stat-label { font-size:10px; color:var(--text-3); text-transform:uppercase; letter-spacing:.4px; display:block; margin-top:2px; }
.result-actions { display:flex; gap:6px; }
.result-dl {
  flex:1; padding:7px; text-align:center; font-size:12px; font-weight:600;
  background:var(--primary); color:var(--primary-text); border-radius:var(--radius-sm);
  transition:all var(--trans); display:flex; align-items:center; justify-content:center; gap:5px;
}
.result-dl:hover { opacity:.9; }
.result-del {
  padding:7px 10px; border:1px solid var(--border-2); border-radius:var(--radius-sm);
  color:var(--text-3); font-size:12px; transition:all var(--trans);
}
.result-del:hover { color:var(--error); border-color:var(--error); background:rgba(255,75,75,.08); }

/* ── Before/After ───────────────────────────────────────────────── */
.compare-wrap { padding:20px; }
.compare-load-note {
  text-align:center; font-size:13px; color:var(--text-3);
  margin:0 0 10px; padding:8px;
}
.compare-container {
  position:relative; overflow:hidden; border-radius:var(--radius);
  height:420px; max-height:500px;
  user-select:none; cursor:ew-resize; border:1px solid var(--border-2);
  background:var(--surface-3);
}
/* Before is the base layer — sits behind */
.compare-before {
  position:absolute; inset:0; z-index:1;
}
/* After is the overlay — clipped from the right by the slider */
.compare-after {
  position:absolute; inset:0; z-index:2;
  clip-path:inset(0 50% 0 0);
}
.compare-before img, .compare-after img {
  width:100%; height:100%; object-fit:contain; display:block;
  transition:opacity .2s;
}
/* Labels sit above both image layers */
.compare-label {
  position:absolute; bottom:12px; padding:4px 10px; z-index:10;
  background:rgba(0,0,0,.75); color:#fff; font-size:12px;
  border-radius:20px; font-weight:600; backdrop-filter:blur(4px);
  pointer-events:none;
}
/* "Before" label anchored to right edge — always in the unclipped "before" region */
.compare-label-before { right:12px; }
/* "After"  label anchored to left  edge — always in the visible "after"  region */
.compare-label-after  { left:12px;  }
.compare-slider {
  position:absolute; top:0; bottom:0; width:3px; z-index:11;
  background:var(--primary); left:50%; transform:translateX(-50%);
  cursor:ew-resize;
}
.compare-handle {
  position:absolute; top:50%; left:50%;
  transform:translate(-50%,-50%);
  width:36px; height:36px; background:var(--primary);
  border-radius:50%; display:flex; align-items:center; justify-content:center;
  color:var(--primary-text); box-shadow:0 4px 12px var(--primary-glow);
}

/* ── History ────────────────────────────────────────────────────── */
.history-toolbar { display:flex; align-items:center; gap:12px; padding:16px; border-bottom:1px solid var(--border); flex-wrap:wrap; }
.search-wrap { position:relative; flex:1; min-width:180px; }
.search-icon { position:absolute; left:12px; top:50%; transform:translateY(-50%); color:var(--text-3); pointer-events:none; }
.search-input {
  width:100%; padding:9px 12px 9px 38px;
  background:var(--surface-2); border:1px solid var(--border-2);
  border-radius:var(--radius-sm); color:var(--text); font-size:14px;
  transition:border-color var(--trans);
}
.search-input:focus { outline:none; border-color:var(--primary); }

.history-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(200px,1fr)); gap:12px; padding:16px; min-height:200px; }
.history-card {
  border:1px solid var(--border); border-radius:var(--radius);
  overflow:hidden; transition:all var(--trans); cursor:pointer;
  position:relative;
}
.history-card:hover { border-color:var(--border-2); transform:translateY(-1px); }
.history-select {
  position:absolute; top:8px; left:8px; z-index:2;
  width:20px; height:20px; border-radius:5px;
  border:2px solid rgba(255,255,255,.5); background:rgba(0,0,0,.3);
  display:flex; align-items:center; justify-content:center;
  transition:all var(--trans);
}
.history-card.selected .history-select {
  background:var(--primary); border-color:var(--primary);
}
.history-card.selected .history-select::after {
  content:'✓'; font-size:11px; color:var(--primary-text); font-weight:700;
}
.history-img { width:100%; height:130px; object-fit:cover; background:var(--surface-3); }
.history-img-ph { width:100%; height:130px; display:flex; align-items:center; justify-content:center; font-size:28px; background:var(--surface-3); }
.history-info { padding:10px 12px; }
.history-name { font-size:12px; font-weight:600; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; margin-bottom:4px; }
.history-meta { display:flex; justify-content:space-between; align-items:center; }
.history-size { font-size:11px; color:var(--text-3); font-family:var(--font-mono); }
.history-fmt  { font-size:10px; font-weight:700; padding:2px 7px; border-radius:20px; background:var(--surface-3); color:var(--text-2); font-family:var(--font-mono); text-transform:uppercase; }
.history-actions {
  display:flex; border-top:1px solid var(--border);
}
.history-dl {
  display:flex; align-items:center; justify-content:center;
  padding:7px; flex:1;
  font-size:12px; color:var(--primary); font-weight:600;
  gap:5px; transition:background var(--trans);
}
.history-dl:hover { background:var(--primary-dim); }
.history-delete-btn {
  display:flex; align-items:center; justify-content:center;
  padding:7px 10px; color:var(--text-3);
  border-left:1px solid var(--border); transition:all var(--trans);
}
.history-delete-btn:hover { color:var(--error); background:rgba(255,75,75,.08); }
.history-pagination { display:flex; justify-content:center; gap:6px; padding:16px; }
.page-btn {
  width:34px; height:34px; border-radius:var(--radius-sm);
  border:1px solid var(--border-2); color:var(--text-2);
  font-size:13px; transition:all var(--trans);
}
.page-btn:hover,
.page-btn.active { border-color:var(--primary); background:var(--primary-dim); color:var(--primary); }

/* ── Settings ───────────────────────────────────────────────────── */
.settings-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:20px; }
@media(max-width:800px) { .settings-grid { grid-template-columns:1fr; } }

.settings-body { padding:18px 20px 20px; display:flex; flex-direction:column; gap:0; }
.setting-row {
  display:flex; align-items:center; justify-content:space-between;
  gap:16px; padding:14px 0; border-bottom:1px solid var(--border);
  flex-wrap:wrap;
}
.setting-row:last-child { border-bottom:none; }
.setting-name { font-size:14px; font-weight:500; }
.setting-desc { font-size:12px; color:var(--text-2); margin-top:3px; }
.setting-control { display:flex; align-items:center; gap:10px; }
.slider-val { font-family:var(--font-mono); font-size:12px; color:var(--primary); font-weight:600; white-space:nowrap; }

.theme-switcher { display:flex; border:1px solid var(--border-2); border-radius:var(--radius-sm); overflow:hidden; }
.theme-opt {
  display:flex; align-items:center; gap:6px;
  padding:8px 14px; font-size:13px; font-weight:500; color:var(--text-2);
  transition:all var(--trans);
}
.theme-opt:hover { color:var(--text); }
.theme-opt.active { background:var(--primary); color:var(--primary-text); }

.change-password-form { display:flex; flex-direction:column; gap:14px; }
.storage-stats { display:flex; flex-direction:column; gap:12px; }
.storage-item { display:flex; align-items:center; gap:12px; padding:12px; background:var(--surface-2); border-radius:var(--radius-sm); }
.storage-label { flex:1; font-size:14px; font-weight:500; }
.storage-val { font-family:var(--font-mono); font-size:13px; color:var(--text-2); }

.settings-actions { display:flex; justify-content:flex-end; padding:4px 0 24px; }

/* ── Empty State ────────────────────────────────────────────────── */
.empty-state { padding:48px 20px; text-align:center; color:var(--text-2); display:flex; flex-direction:column; align-items:center; gap:12px; }
.empty-icon  { font-size:42px; }
.empty-state p { font-size:14px; }

/* ── Toast / Notifications ──────────────────────────────────────── */
.toast-container { position:fixed; bottom:24px; right:24px; z-index:9999; display:flex; flex-direction:column-reverse; gap:8px; }
.toast {
  display:flex; align-items:flex-start; gap:12px;
  padding:14px 16px; border-radius:var(--radius);
  background:var(--surface-2); border:1px solid var(--border-2);
  box-shadow:var(--shadow-lg); max-width:340px; min-width:260px;
  animation:toastIn .3s cubic-bezier(.34,1.56,.64,1);
}
.toast.removing { animation:toastOut .25s ease forwards; }
@keyframes toastIn  { from{opacity:0;transform:translateX(20px) scale(.95)} to{opacity:1;transform:none} }
@keyframes toastOut { from{opacity:1;transform:none} to{opacity:0;transform:translateX(20px) scale(.95)} }
.toast-icon { width:20px; height:20px; flex-shrink:0; margin-top:1px; }
.toast.success .toast-icon { color:var(--success); }
.toast.error   .toast-icon { color:var(--error); }
.toast.warning .toast-icon { color:var(--warning); }
.toast.info    .toast-icon { color:var(--cyan); }
.toast-body { flex:1; }
.toast-title { font-size:14px; font-weight:600; }
.toast-msg   { font-size:13px; color:var(--text-2); margin-top:2px; }
.toast-close { color:var(--text-3); padding:2px; flex-shrink:0; transition:color var(--trans); font-size:16px; line-height:1; }
.toast-close:hover { color:var(--text); }

/* ── Processing Overlay ─────────────────────────────────────────── */
.processing-overlay {
  position:fixed; inset:0; z-index:999;
  background:rgba(6,7,9,.8); backdrop-filter:blur(8px);
  display:flex; align-items:center; justify-content:center;
}
.processing-modal {
  background:var(--surface); border:1px solid var(--border-2);
  border-radius:var(--radius-xl); padding:44px 48px;
  text-align:center; max-width:340px; width:90%;
  box-shadow:var(--shadow-lg);
}
.processing-icon {
  width:80px; height:80px; border-radius:50%;
  background:var(--primary-dim); border:2px solid rgba(212,255,28,.2);
  display:flex; align-items:center; justify-content:center;
  margin:0 auto 24px; position:relative;
}
.processing-ring {
  position:absolute; inset:-4px; border-radius:50%;
  border:3px solid transparent;
  border-top-color:var(--primary);
  animation:spin 1s linear infinite;
}
@keyframes spin { to{transform:rotate(360deg)} }
.processing-title { font-family:var(--font-display); font-size:22px; font-weight:800; margin-bottom:8px; }
.processing-sub   { color:var(--text-2); font-size:14px; margin-bottom:24px; }
.processing-progress { height:4px; background:var(--surface-3); border-radius:2px; overflow:hidden; }
.processing-bar {
  height:100%; width:30%;
  background:var(--primary); border-radius:2px;
  animation:processingIndeterminate 1.5s ease-in-out infinite;
}
@keyframes processingIndeterminate { 0%{width:0%;margin-left:0} 50%{width:70%;margin-left:15%} 100%{width:0%;margin-left:100%} }

/* ── Button spinner ─────────────────────────────────────────────── */
.btn-spinner {
  width:16px; height:16px; border-radius:50%;
  border:2px solid rgba(6,7,9,.3); border-top-color:var(--primary-text);
  animation:spin .7s linear infinite;
}

/* ── Watermark Redesign ──────────────────────────────────────────── */
.wm-enable-row {
  display:flex; align-items:center; justify-content:space-between; gap:12px;
  background:var(--surface-2); border-bottom:1px solid var(--border);
  padding:14px 16px; margin:-20px -20px 20px;
}
.wm-enable-info .wm-enable-title { font-size:14px; font-weight:600; }
.wm-enable-info .wm-enable-desc  { font-size:12px; color:var(--text-2); margin-top:2px; }

.wm-field { margin-bottom:18px; }
.wm-field:last-child { margin-bottom:0; }
.wm-label {
  display:block; font-size:11px; font-weight:600; color:var(--text-2);
  text-transform:uppercase; letter-spacing:.6px; margin-bottom:8px;
}

.wm-text-input {
  width:100%; padding:12px 14px; font-size:15px; font-weight:500;
  background:var(--surface-2); border:1.5px solid var(--border-2);
  border-radius:var(--radius-sm); color:var(--text);
  font-family:inherit; transition:all var(--trans);
}
.wm-text-input:focus { outline:none; border-color:var(--primary); box-shadow:0 0 0 3px var(--primary-glow); }

.wm-color-btns { display:flex; gap:8px; }
.wm-color-btn {
  display:flex; align-items:center; gap:8px; padding:8px 14px;
  border:1px solid var(--border-2); border-radius:var(--radius-sm);
  font-size:13px; font-weight:500; color:var(--text-2); transition:all var(--trans);
}
.wm-swatch { width:14px; height:14px; border-radius:3px; display:inline-block; flex-shrink:0; }
.wm-color-btn.active { border-color:var(--primary); background:var(--primary-dim); color:var(--primary); }

.wm-grid-wrap { display:grid; grid-template-columns:auto 1fr; gap:12px; align-items:center; }

.wm-grid9 {
  display:grid; grid-template-columns:repeat(3,1fr); gap:3px;
  background:var(--surface-3); border:1px solid var(--border-2);
  border-radius:var(--radius); padding:5px; width:96px; flex-shrink:0;
}
.wm-grid-btn {
  aspect-ratio:1; display:flex; align-items:center; justify-content:center;
  font-size:14px; border-radius:6px; color:var(--text-2);
  border:1px solid transparent; transition:all var(--trans); cursor:pointer;
}
.wm-grid-btn:hover { background:var(--surface-2); color:var(--text); }
.wm-grid-btn.active { background:var(--primary); color:var(--primary-text); }

.wm-preview-box {
  border:1px solid var(--border-2); border-radius:var(--radius);
  background:linear-gradient(135deg,#1A1D2E,#252840);
  overflow:hidden; position:relative; aspect-ratio:16/9;
  flex:1;
}
.wm-preview-text {
  position:absolute; font-size:9px; font-weight:700;
  white-space:nowrap; padding:3px 6px;
  border-radius:3px; font-family:var(--font-mono);
  transition:all .2s ease; pointer-events:none;
}
.wm-preview-text.wm-white { color:rgba(255,255,255,.85); background:rgba(0,0,0,.35); }
.wm-preview-text.wm-black { color:rgba(0,0,0,.85); background:rgba(255,255,255,.5); }

/* Position classes for preview */
.wm-preview-text[data-pos="top-left"]      { top:6px; left:6px; }
.wm-preview-text[data-pos="top-center"]    { top:6px; left:50%; transform:translateX(-50%); }
.wm-preview-text[data-pos="top-right"]     { top:6px; right:6px; }
.wm-preview-text[data-pos="middle-left"]   { top:50%; left:6px; transform:translateY(-50%); }
.wm-preview-text[data-pos="center"]        { top:50%; left:50%; transform:translate(-50%,-50%); }
.wm-preview-text[data-pos="middle-right"]  { top:50%; right:6px; transform:translateY(-50%); }
.wm-preview-text[data-pos="bottom-left"]   { bottom:6px; left:6px; }
.wm-preview-text[data-pos="bottom-center"] { bottom:6px; left:50%; transform:translateX(-50%); }
.wm-preview-text[data-pos="bottom-right"]  { bottom:6px; right:6px; }

/* ── Resize dimension info ───────────────────────────────────────── */
.resize-info {
  display:flex; align-items:center; gap:8px; padding:10px 12px;
  background:var(--primary-dim); border:1px solid rgba(212,255,28,.2);
  border-radius:var(--radius-sm); margin-bottom:14px; font-size:12px;
  color:var(--primary); font-family:var(--font-mono);
}
.resize-info svg { flex-shrink:0; }

/* ================================================================
   PHOTO COLLAGE MODULE
   ================================================================ */

/* ── Workspace ──────────────────────────────────────────────────── */
.collage-workspace {
  display:grid;
  grid-template-columns:220px 1fr 220px;
  gap:16px; height:calc(100vh - var(--topbar-h) - 220px);
  min-height:460px;
}

/* ── Tool panels ────────────────────────────────────────────────── */
.collage-tools, .collage-cell-panel {
  background:var(--surface); border:1px solid var(--border);
  border-radius:var(--radius-lg); overflow-y:auto;
  display:flex; flex-direction:column;
}
.ctool-section {
  padding:14px 16px; border-bottom:1px solid var(--border);
}
.ctool-section:last-child { border-bottom:none; }
.ctool-title {
  font-size:11px; font-weight:700; text-transform:uppercase;
  letter-spacing:.7px; color:var(--text-2); margin-bottom:10px;
  display:flex; align-items:center; justify-content:space-between;
}
.ctool-title span { color:var(--primary); font-family:var(--font-mono); }

/* ── Layout picker ──────────────────────────────────────────────── */
.layout-picker {
  display:grid; grid-template-columns:repeat(3,1fr); gap:6px;
}
.layout-btn {
  aspect-ratio:1; border:2px solid var(--border-2);
  border-radius:var(--radius-sm); padding:6px; cursor:pointer;
  transition:all var(--trans); background:var(--surface-2);
  display:flex; align-items:center; justify-content:center;
}
.layout-btn:hover  { border-color:var(--text-3); }
.layout-btn.active { border-color:var(--primary); background:var(--primary-dim); }
.layout-btn svg    { width:100%; height:100%; }

/* ── Canvas size presets ────────────────────────────────────────── */
.size-presets { display:flex; flex-wrap:wrap; gap:5px; margin-bottom:10px; }
.size-preset-btn {
  padding:4px 9px; font-size:11px; font-weight:600;
  border:1px solid var(--border-2); border-radius:20px;
  color:var(--text-2); transition:all var(--trans); cursor:pointer;
}
.size-preset-btn:hover,
.size-preset-btn.active { border-color:var(--primary); background:var(--primary-dim); color:var(--primary); }
.custom-size-row { display:flex; align-items:center; gap:6px; margin-top:8px; }
.custom-size-row span { color:var(--text-3); font-size:13px; }
.size-input {
  flex:1; padding:7px 10px; background:var(--surface-2);
  border:1px solid var(--border-2); border-radius:var(--radius-sm);
  color:var(--text); font-size:13px; text-align:center;
  transition:border-color var(--trans);
}
.size-input:focus { outline:none; border-color:var(--primary); }

/* ── Background picker ──────────────────────────────────────────── */
.bg-swatches { display:flex; flex-wrap:wrap; gap:6px; margin-bottom:10px; }
.bg-swatch {
  width:28px; height:28px; border-radius:6px; cursor:pointer;
  border:2px solid transparent; transition:all var(--trans);
  flex-shrink:0;
}
.bg-swatch.active  { border-color:var(--primary); transform:scale(1.1); }
.bg-swatch.custom  { background: conic-gradient(#f00,#ff0,#0f0,#0ff,#00f,#f0f,#f00); }
.bg-color-row { display:flex; align-items:center; gap:8px; margin-top:4px; }
.bg-color-input {
  width:36px; height:28px; border:1px solid var(--border-2);
  border-radius:6px; cursor:pointer; padding:2px; background:var(--surface-2);
}
.bg-color-label { font-size:12px; color:var(--text-2); font-family:var(--font-mono); }

/* ── Viewport & Canvas ──────────────────────────────────────────── */
.collage-viewport {
  background:var(--bg-2);
  border:1px solid var(--border); border-radius:var(--radius-lg);
  display:flex; align-items:center; justify-content:center;
  overflow:hidden; position:relative;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size:20px 20px;
  transition:all var(--trans);
}
.collage-viewport.drag-over {
  border-color:var(--primary);
  background-color:var(--primary-dim);
  box-shadow:0 0 0 2px var(--primary-glow), inset 0 0 24px rgba(212,255,28,.08);
}

.collage-canvas-wrap {
  position:relative; transform-origin:center center;
  box-shadow:0 24px 80px rgba(0,0,0,.6), 0 0 0 1px rgba(255,255,255,.06);
}
.collage-canvas-el {
  position:relative; overflow:hidden;
  transform-origin:top left;
}

/* ── Collage cells ──────────────────────────────────────────────── */
.collage-cell {
  position:absolute; overflow:hidden; cursor:pointer;
  transition:box-shadow var(--trans);
}
.collage-cell img {
  display:block;
  image-rendering:high-quality;
  max-width:none;
  max-height:none;
}
.collage-cell.selected { box-shadow:0 0 0 3px var(--primary), inset 0 0 0 1px var(--primary); z-index:2; }
.collage-cell-inner {
  position:absolute; inset:0; overflow:hidden;
  background:var(--surface-3);
  display:flex; align-items:center; justify-content:center;
}
.collage-cell img {
  position:absolute; top:0; left:0;
  transform-origin:center center;
  pointer-events:none; user-select:none;
  will-change:transform;
}
.collage-cell-empty {
  position:absolute; inset:0;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap:8px; color:var(--text-3); transition:all var(--trans);
  pointer-events:none;
}
.collage-cell:not(.has-image):hover .collage-cell-empty { color:var(--primary); }
.collage-cell-empty svg { opacity:.5; }
.collage-cell-empty span { font-size:11px; font-weight:600; letter-spacing:.3px; }
.collage-cell-number {
  position:absolute; top:6px; left:6px; z-index:2;
  width:20px; height:20px; background:rgba(0,0,0,.5);
  border-radius:50%; display:flex; align-items:center; justify-content:center;
  font-size:10px; font-weight:700; color:#fff; font-family:var(--font-mono);
  pointer-events:none;
}

/* ── Cell panel controls ────────────────────────────────────────── */
.cell-controls-empty {
  padding:20px 16px; text-align:center; color:var(--text-3); font-size:13px;
}
.cell-controls-empty svg { margin:0 auto 8px; display:block; opacity:.4; }
.cell-action-row { display:flex; gap:6px; margin-top:8px; }
.cell-action-row .btn-ghost { flex:1; justify-content:center; font-size:12px; padding:8px; }
.cell-action-row .btn-danger { border-color:rgba(255,75,75,.3); color:var(--error); }
.cell-action-row .btn-danger:hover { background:rgba(255,75,75,.1); }

/* ── Export format & quality ────────────────────────────────────── */
.export-row { display:flex; gap:8px; margin-bottom:10px; }
.export-format-btn {
  flex:1; padding:8px; text-align:center; font-size:12px; font-weight:700;
  border:1px solid var(--border-2); border-radius:var(--radius-sm);
  color:var(--text-2); transition:all var(--trans);
  font-family:var(--font-mono);
}
.export-format-btn.active { border-color:var(--primary); background:var(--primary-dim); color:var(--primary); }

/* ── Collage label-buttons (act like normal buttons but trigger file input) */
.collage-label-btn {
  display:inline-flex; align-items:center; gap:8px;
  cursor:pointer; user-select:none;
}

/* ── Upload prompt ──────────────────────────────────────────────── */
.collage-upload-prompt {
  position:absolute; inset:0; z-index:10;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap:12px; text-align:center; padding:40px;
  background:var(--bg-2);
  background-image:linear-gradient(rgba(212,255,28,.03) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(212,255,28,.03) 1px,transparent 1px);
  background-size:30px 30px;
}
.cup-icon { margin-bottom:8px; color:var(--text-3); }
.collage-upload-prompt h3 { font-family:var(--font-display); font-size:22px; font-weight:700; color:var(--text); }
.collage-upload-prompt p  { color:var(--text-2); font-size:14px; max-width:320px; }
.cup-hint { font-size:12px !important; color:var(--text-3) !important; }
.collage-upload-prompt .btn-primary { margin-top:4px; }

/* ── Collage nav badge ──────────────────────────────────────────── */
.nav-item .badge-new {
  margin-left:auto; background:var(--orange); color:#fff;
  font-size:9px; font-weight:700; padding:2px 6px;
  border-radius:20px; letter-spacing:.3px;
}

/* ── Responsive ─────────────────────────────────────────────────── */
@media(max-width:768px) {
  .sidebar { transform:translateX(calc(-1 * var(--sidebar-w))); box-shadow:var(--shadow-lg); }
  .sidebar.open { transform:none; }
  .sidebar-close { display:flex; }
  .sidebar-overlay.show { display:block; }
  .app-main { margin-left:0; }
  .topbar-burger { display:flex; }
  .app-content { padding:16px; }
  .upload-zone { padding:40px 20px; }
  .toast-container { left:16px; right:16px; bottom:16px; }
  .toast { max-width:none; }
  .optimize-layout { grid-template-columns:1fr; }
  .wm-grid-wrap { grid-template-columns:auto 1fr; }
  .collage-workspace { grid-template-columns:1fr; grid-template-rows:auto 1fr auto; height:auto; }
  .collage-tools, .collage-cell-panel { max-height:280px; }
  .collage-viewport { min-height:50vw; }
}
@media(max-width:480px) {
  .page-header { flex-direction:column; }
  .login-card  { padding:32px 24px; }
  .results-grid{ grid-template-columns:1fr 1fr; }
  .field-row { flex-wrap:wrap; }
}