:root{
  --bg:#0a0b14;
  --bg-2:#0f1120;
  --surface:rgba(22,24,40,0.65);
  --surface-2:rgba(30,33,55,0.55);
  --border:rgba(255,255,255,0.08);
  --border-strong:rgba(255,255,255,0.14);
  --text:#e8eaf2;
  --text-dim:#9aa0b4;
  --muted:#7b809a;
  --primary:#7c5cff;
  --primary-2:#22d3ee;
  --primary-glow:rgba(124,92,255,0.45);
  --success:#34d399;
  --danger:#f87171;
  --radius:16px;
  --shadow-lg: 0 30px 80px -20px rgba(0,0,0,0.6), 0 8px 24px -8px rgba(0,0,0,0.5);
  --shadow-md: 0 10px 30px -10px rgba(0,0,0,0.55);
  --grad-primary: linear-gradient(135deg,#7c5cff 0%,#22d3ee 100%);
  --grad-card: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01));
  --font-display:'Space Grotesk', system-ui, sans-serif;
  --font-body:'Inter', system-ui, -apple-system, sans-serif;
}

body[data-theme="light"]{
  --bg:#f4f5fb;
  --bg-2:#eceef7;
  --surface:rgba(255,255,255,0.85);
  --surface-2:rgba(255,255,255,0.7);
  --border:rgba(20,22,40,0.08);
  --border-strong:rgba(20,22,40,0.14);
  --text:#13152b;
  --text-dim:#4b5070;
  --muted:#6c7290;
  --primary-glow:rgba(124,92,255,0.25);
  --grad-card: linear-gradient(180deg, rgba(255,255,255,0.7), rgba(255,255,255,0.4));
  --shadow-lg: 0 30px 60px -20px rgba(40,40,80,0.25), 0 8px 24px -8px rgba(40,40,80,0.15);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;min-height:100vh;background:var(--bg);color:var(--text);font-family:var(--font-body);-webkit-font-smoothing:antialiased;overflow-x:hidden}
body{background:radial-gradient(1200px 800px at 80% -10%, rgba(124,92,255,0.18), transparent 60%),radial-gradient(900px 700px at -10% 30%, rgba(34,211,238,0.12), transparent 60%),var(--bg)}

/* Animated bg orbs */
.bg-orb{position:fixed;border-radius:50%;filter:blur(80px);opacity:.4;pointer-events:none;z-index:0;animation:float 18s ease-in-out infinite}
.orb-1{width:380px;height:380px;background:#7c5cff;top:-100px;right:10%}
.orb-2{width:320px;height:320px;background:#22d3ee;bottom:-80px;left:5%;animation-delay:-6s}
.orb-3{width:260px;height:260px;background:#ec4899;top:40%;left:50%;opacity:.18;animation-delay:-12s}
@keyframes float{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(40px,-30px) scale(1.08)}}

/* Topbar */
.topbar{position:relative;z-index:10;display:flex;justify-content:space-between;align-items:center;padding:24px 40px;gap:24px}
.brand{display:flex;align-items:center;gap:16px}
.logo{width:48px;height:48px;border-radius:14px;background:var(--grad-primary);display:grid;place-items:center;color:#fff;box-shadow:0 10px 30px -8px var(--primary-glow)}
.logo svg{width:24px;height:24px}
.brand-text h1{margin:0;font-family:var(--font-display);font-size:20px;font-weight:700;letter-spacing:-0.02em;display:flex;align-items:center;gap:10px}
.brand-text p{margin:4px 0 0;font-size:13px;color:var(--text-dim)}
.pro-badge{font-size:10px;font-weight:700;padding:3px 8px;border-radius:999px;background:var(--grad-primary);color:#fff;letter-spacing:0.08em}
.topbar-actions{display:flex;align-items:center;gap:12px}
.status-pill{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;background:var(--surface);border:1px solid var(--border);font-size:12px;color:var(--text-dim);backdrop-filter:blur(20px)}
.status-pill .dot{width:8px;height:8px;border-radius:50%;background:var(--success);box-shadow:0 0 0 4px rgba(52,211,153,0.18);animation:pulse 2s ease-in-out infinite}
@keyframes pulse{50%{opacity:.5}}
.icon-btn{width:40px;height:40px;border-radius:12px;border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;display:grid;place-items:center;transition:.2s;backdrop-filter:blur(20px)}
.icon-btn:hover{border-color:var(--border-strong);transform:translateY(-1px)}
.icon-btn svg{width:18px;height:18px}
body[data-theme="dark"] .icon-sun{display:none}
body[data-theme="light"] .icon-moon{display:none}

/* Workspace */
.workspace{position:relative;z-index:5;display:grid;grid-template-columns:1fr 380px;gap:24px;padding:8px 40px 40px;max-width:1600px;margin:0 auto}
.panel{display:flex;flex-direction:column;gap:20px;min-width:0}

/* Card */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);box-shadow:var(--shadow-md);background-image:var(--grad-card);transition:.3s}
.card:hover{border-color:var(--border-strong)}
.card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:18px;gap:12px}
.card-header h3{margin:0;font-family:var(--font-display);font-size:15px;font-weight:600;letter-spacing:-0.01em}
.card-header p{margin:4px 0 0;font-size:12px}
.muted{color:var(--text-dim);font-weight:400}

/* Dropzone */
.dropzone{cursor:pointer;border:1.5px dashed var(--border-strong);padding:0;overflow:hidden;position:relative;transition:.3s}
.dropzone:hover,.dropzone.drag{border-color:var(--primary);background:linear-gradient(180deg, rgba(124,92,255,0.06), rgba(34,211,238,0.04))}
.dropzone-inner{padding:60px 30px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px}
.upload-icon{width:72px;height:72px;border-radius:20px;background:var(--grad-primary);display:grid;place-items:center;color:#fff;box-shadow:0 20px 40px -12px var(--primary-glow);animation:bob 4s ease-in-out infinite}
.upload-icon svg{width:32px;height:32px}
@keyframes bob{50%{transform:translateY(-6px)}}
.dropzone h2{margin:6px 0 0;font-family:var(--font-display);font-size:22px;font-weight:600;letter-spacing:-0.02em}
.dropzone p{margin:0;color:var(--text-dim);font-size:14px}
.link{color:var(--primary-2);font-weight:600;cursor:pointer}
.formats-row{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap;justify-content:center}
.formats-row span{font-size:11px;font-weight:600;padding:5px 10px;border-radius:8px;background:var(--surface-2);border:1px solid var(--border);color:var(--text-dim);letter-spacing:0.04em}

/* Garante que a área renderize elementos empilhados no centro perfeitamente */
.preview-stage {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: #0b0c14;
  border: 1px solid var(--border);
  min-height: 340px;
  display: grid;
  place-items: center; 
}

/* Regra absoluta para corrigir a distorção da imagem "depois" e parear no Split */
.preview-stage img, 
.preview-stage canvas {
  max-width: 100%;
  max-height: 400px;
  object-fit: contain; /* Trava o aspect ratio para não distorcer */
  pointer-events: none; /* Permite que o previewStage escute os eventos de arraste sem bloqueio */
  will-change: clip-path; /* Dica para a GPU preparar o layer para animação */
}

/* Otimização visual do Handle */
.split-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--primary-2);
  cursor: ew-resize;
  z-index: 10;
  transform: translateX(-50%);
  pointer-events: none; /* Impede que o mouse trave no próprio handle ao arrastar muito rápido */
  box-shadow: 0 0 15px rgba(0,0,0,0.6);
}

.split-handle::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 16px;
  height: 32px;
  background: var(--surface);
  border: 2px solid var(--primary-2);
  border-radius: 6px;
}
/* Tabs */
.tabs{display:inline-flex;background:var(--surface-2);border:1px solid var(--border);border-radius:10px;padding:3px;gap:2px}
.tab{background:transparent;border:0;color:var(--text-dim);font:inherit;font-size:12px;font-weight:600;padding:6px 12px;border-radius:8px;cursor:pointer;transition:.2s}
.tab.active{background:var(--surface);color:var(--text);box-shadow:0 2px 8px -2px rgba(0,0,0,0.3)}

/* Stats */
.stats-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-top:18px}
.stat{background:var(--surface-2);border:1px solid var(--border);padding:14px;border-radius:12px;display:flex;flex-direction:column;gap:6px;transition:.2s}
.stat:hover{border-color:var(--border-strong);transform:translateY(-2px)}
.stat-label{font-size:11px;color:var(--text-dim);text-transform:uppercase;letter-spacing:0.08em;font-weight:600}
.stat-value{font-family:var(--font-display);font-size:16px;font-weight:600;letter-spacing:-0.01em}
.stat-highlight{background:linear-gradient(135deg, rgba(52,211,153,0.12), rgba(34,211,238,0.08));border-color:rgba(52,211,153,0.3)}
.stat-highlight .stat-value{color:var(--success)}

/* Right panel */
.panel-right{position:sticky;top:24px;align-self:flex-start;max-height:calc(100vh - 48px);overflow-y:auto;padding-right:4px}
.panel-right::-webkit-scrollbar{width:6px}
.panel-right::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:3px}

/* Presets */
.presets{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.preset{display:flex;align-items:center;gap:10px;padding:12px;border-radius:12px;border:1px solid var(--border);background:var(--surface-2);color:var(--text);cursor:pointer;font:inherit;text-align:left;transition:.2s}
.preset:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:0 8px 20px -10px var(--primary-glow)}
.preset strong{display:block;font-size:13px;font-weight:600}
.preset span{font-size:11px;color:var(--text-dim)}
.preset-icon{width:32px;height:32px;border-radius:9px;flex-shrink:0}
.preset-icon.ig{background:linear-gradient(45deg,#f09433,#e6683c,#dc2743,#cc2366,#bc1888)}
.preset-icon.fb{background:linear-gradient(135deg,#1877f2,#42a5f5)}
.preset-icon.yt{background:linear-gradient(135deg,#ff0000,#c80000)}
.preset-icon.gd{background:linear-gradient(135deg,#4285f4,#34a853,#fbbc05,#ea4335)}

/* Forms */
.form-row{display:flex;flex-direction:column;gap:8px;margin-bottom:14px}
.form-row:last-child{margin-bottom:0}
.form-row label{font-size:12px;font-weight:600;color:var(--text-dim);display:flex;justify-content:space-between;align-items:center}
input[type=number],input[type=text]{background:var(--surface-2);border:1px solid var(--border);border-radius:10px;padding:10px 12px;color:var(--text);font:inherit;font-size:13px;outline:none;transition:.2s;width:100%}
input[type=number]:focus,input[type=text]:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}
input[type=color]{width:44px;height:36px;border-radius:8px;border:1px solid var(--border);background:transparent;cursor:pointer;padding:2px}
.color-row{display:flex;align-items:center;gap:10px;font-size:12px}

/* Slider */
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:6px;background:var(--surface-2);border-radius:3px;outline:none;border:1px solid var(--border)}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;border-radius:50%;background:var(--grad-primary);cursor:pointer;border:2px solid var(--bg);box-shadow:0 4px 12px var(--primary-glow);transition:.2s}
input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.15)}
input[type=range]::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:#7c5cff;cursor:pointer;border:2px solid var(--bg)}

/* Segmented */
.segmented{display:grid;grid-template-columns:repeat(5,1fr);gap:4px;background:var(--surface-2);border:1px solid var(--border);border-radius:10px;padding:4px}
.segmented button{background:transparent;border:0;color:var(--text-dim);font:inherit;font-size:11px;font-weight:600;padding:8px 4px;border-radius:7px;cursor:pointer;transition:.2s;letter-spacing:0.04em}
.segmented button:hover{color:var(--text)}
.segmented button.active{background:var(--grad-primary);color:#fff;box-shadow:0 4px 12px -4px var(--primary-glow)}
.segmented button:disabled{opacity:.35;cursor:not-allowed}

/* Focal grid */
.focal-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;background:var(--surface-2);border:1px solid var(--border);border-radius:10px;padding:6px;aspect-ratio:3/2;max-width:200px}
.focal-grid button{background:rgba(255,255,255,0.04);border:1px solid transparent;border-radius:6px;cursor:pointer;transition:.2s;position:relative}
.focal-grid button:hover{background:rgba(124,92,255,0.15)}
.focal-grid button.active{background:var(--grad-primary);box-shadow:0 0 0 1px rgba(124,92,255,0.3),0 4px 12px -4px var(--primary-glow)}
.focal-grid button.active::after{content:'';position:absolute;inset:0;margin:auto;width:6px;height:6px;border-radius:50%;background:#fff}

/* Primary button */
.btn-primary{width:100%;position:relative;background:var(--grad-primary);color:#fff;border:0;border-radius:12px;padding:14px;font:inherit;font-weight:600;font-size:14px;cursor:pointer;transition:.25s;box-shadow:0 10px 30px -10px var(--primary-glow);overflow:hidden}
.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 14px 36px -10px var(--primary-glow)}
.btn-primary:disabled{opacity:.45;cursor:not-allowed}
.btn-label{display:inline-flex;align-items:center;gap:10px}
.btn-label svg{width:16px;height:16px}
.btn-loader{position:absolute;inset:0;display:none;align-items:center;justify-content:center;background:inherit}
.btn-loader::after{content:'';width:18px;height:18px;border:2px solid rgba(255,255,255,0.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}
.btn-primary.loading .btn-label{visibility:hidden}
.btn-primary.loading .btn-loader{display:flex}
@keyframes spin{to{transform:rotate(360deg)}}

/* Toast */
.toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%) translateY(20px);background:var(--surface);border:1px solid var(--border-strong);backdrop-filter:blur(20px);padding:14px 20px;border-radius:12px;font-size:13px;font-weight:500;box-shadow:var(--shadow-lg);opacity:0;pointer-events:none;transition:.3s;z-index:100}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.success{border-color:rgba(52,211,153,0.4)}
.toast.error{border-color:rgba(248,113,113,0.4)}

/* Responsive */
@media (max-width: 1100px){
  .workspace{grid-template-columns:1fr;padding:8px 24px 40px}
  .panel-right{position:relative;top:0;max-height:none}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .topbar{padding:20px 24px;flex-wrap:wrap}
}
@media (max-width: 640px){
  .stats-grid{grid-template-columns:1fr 1fr}
  .segmented{grid-template-columns:repeat(3,1fr)}
  .presets{grid-template-columns:1fr}
  .status-pill{display:none}
  .brand-text h1{font-size:17px}
}