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

:root{
  --primary:#7c3aed;
  --primary-light:#a78bfa;
  --primary-glow:rgba(124,58,237,.35);
  --bg:#07070f;
  --surface:#0f0f1a;
  --surface2:#161625;
  --surface3:#1e1e32;
  --border:rgba(255,255,255,.07);
  --border-strong:rgba(255,255,255,.12);
  --text:#f0f0ff;
  --text-2:#a0a0c0;
  --text-3:#606080;
  --success:#22c55e;
  --danger:#ef4444;
  --warn:#f59e0b;
  --radius:14px;
  --radius-sm:9px;
  --t:.2s cubic-bezier(.4,0,.2,1);
}

body{
  font-family:'Inter',system-ui,sans-serif;
  background:var(--bg);color:var(--text);
  min-height:100vh;overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  display:flex;flex-direction:column;
}

/* ─── Orbs ───────────────────────────────────────────────────────────────────── */
.bg-orb{position:fixed;border-radius:50%;filter:blur(130px);opacity:.15;pointer-events:none;z-index:0}
.orb1{width:640px;height:640px;background:radial-gradient(circle,#7c3aed,transparent 70%);top:-220px;left:-180px}
.orb2{width:520px;height:520px;background:radial-gradient(circle,#2563eb,transparent 70%);bottom:-160px;right:-160px}

/* ─── App ────────────────────────────────────────────────────────────────────── */
.app{position:relative;z-index:1;max-width:1160px;margin:0 auto;padding:32px 20px 40px;flex:1}

/* ─── Header ─────────────────────────────────────────────────────────────────── */
header{margin-bottom:32px}
.header-inner{display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:14px}
.brand-icon{
  width:48px;height:48px;
  background:linear-gradient(135deg,rgba(124,58,237,.28),rgba(99,102,241,.1));
  border:1px solid rgba(124,58,237,.38);border-radius:14px;
  display:grid;place-items:center;
  box-shadow:0 0 28px var(--primary-glow);
}
.brand-name{
  font-size:26px;font-weight:900;letter-spacing:-.5px;
  background:linear-gradient(135deg,#fff 30%,#a78bfa);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.brand-version{display:block;font-size:11px;font-weight:600;color:var(--text-3);letter-spacing:.08em;text-transform:uppercase;margin-top:2px}
.ai-badge{
  display:flex;align-items:center;gap:7px;
  background:rgba(34,197,94,.1);border:1px solid rgba(34,197,94,.25);
  color:#22c55e;font-size:12px;font-weight:700;padding:6px 14px;border-radius:30px;letter-spacing:.04em;
}
.ai-dot{width:7px;height:7px;border-radius:50%;background:#22c55e;box-shadow:0 0 6px #22c55e;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}

/* ─── Mode switcher ──────────────────────────────────────────────────────────── */
.mode-switcher{
  display:flex;gap:6px;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:5px;margin-bottom:24px;
}
.mode-btn{
  flex:1;display:flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 16px;border:none;border-radius:10px;
  font-size:14px;font-weight:700;cursor:pointer;color:var(--text-2);
  background:transparent;transition:var(--t);
}
.mode-btn:hover{color:var(--text);background:var(--surface2)}
.mode-btn.active{
  background:linear-gradient(135deg,var(--primary),#6366f1);
  color:#fff;box-shadow:0 4px 20px var(--primary-glow);
}

/* ─── Mode/type panels ───────────────────────────────────────────────────────── */
.mode-panel{display:none}.mode-panel.active{display:block}
.type-tabs{
  display:flex;gap:4px;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:4px;margin-bottom:20px;
}
.type-tab{
  flex:1;padding:9px;border:none;border-radius:10px;
  font-size:13px;font-weight:600;cursor:pointer;
  color:var(--text-3);background:transparent;transition:var(--t);
}
.type-tab:hover{color:var(--text-2);background:var(--surface2)}
.type-tab.active{background:var(--surface3);color:var(--text);border:1px solid var(--border-strong)}
.type-panel{display:none}.type-panel.active{display:block}

/* ─── Two-column panel grid ──────────────────────────────────────────────────── */
.panel-grid{
  display:grid;
  grid-template-columns:1fr 300px;
  gap:20px;
  align-items:start;
}

/* ─── Sidebar ────────────────────────────────────────────────────────────────── */
.panel-aside{
  position:sticky;
  top:20px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
}
.aside-title{
  padding:13px 16px;
  font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;
  color:var(--text-3);border-bottom:1px solid var(--border);
  background:rgba(124,58,237,.05);
}

/* ─── FAQ accordion ──────────────────────────────────────────────────────────── */
.faq-block{overflow:hidden}
.faq-item{border-bottom:1px solid var(--border)}
.faq-item:last-child{border-bottom:none}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 16px;background:transparent;border:none;cursor:pointer;
  font-size:12.5px;font-weight:700;color:var(--text-2);text-align:left;
  transition:background var(--t),color var(--t);
}
.faq-q:hover{background:rgba(255,255,255,.03);color:var(--text)}
.faq-q.open{color:var(--primary-light)}
.faq-q.open .faq-chevron{transform:rotate(180deg)}
.faq-chevron{flex-shrink:0;color:var(--text-3);transition:transform .25s ease;min-width:16px}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .35s cubic-bezier(.4,0,.2,1),padding .25s;
  padding:0 16px;
}
.faq-a.open{max-height:500px;padding:0 16px 14px}
.faq-a p,.faq-a li{font-size:12px;line-height:1.7;color:var(--text-2)}
.faq-a ul{padding-left:16px;display:flex;flex-direction:column;gap:5px;margin-top:5px}
.faq-a strong{color:var(--text);font-weight:700}

/* ─── Drop zone ──────────────────────────────────────────────────────────────── */
.drop-zone{
  border:1.5px dashed var(--border-strong);border-radius:var(--radius);
  background:var(--surface);padding:52px 20px;text-align:center;cursor:pointer;
  transition:border-color var(--t),background var(--t);margin-bottom:16px;
}
.drop-zone:hover,.drop-zone.over{border-color:var(--primary);background:rgba(124,58,237,.06)}
.drop-zone.mini{padding:28px 16px;margin-bottom:0}
.drop-icon{margin-bottom:16px}
.drop-title{font-size:17px;font-weight:700;margin-bottom:8px}
.drop-sub{font-size:14px;color:var(--text-2)}
.drop-hint{font-size:12px;color:var(--text-3);margin-top:8px;letter-spacing:.02em}
.drop-mini-label{font-size:13px;font-weight:700;margin-bottom:8px;color:var(--text-2)}
.drop-filename{font-size:11px;color:var(--primary-light);margin-top:8px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.two-drop-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:20px}

/* ─── Work area ──────────────────────────────────────────────────────────────── */
.work-area{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}
.work-header{display:flex;align-items:center;gap:12px;margin-bottom:16px;font-size:14px;font-weight:600;color:var(--text-2)}
.step-badge{
  width:26px;height:26px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,var(--primary),#6366f1);
  display:grid;place-items:center;font-size:13px;font-weight:800;color:#fff;
  box-shadow:0 2px 10px var(--primary-glow);
}

/* ─── Canvas ─────────────────────────────────────────────────────────────────── */
.canvas-wrap{position:relative;display:block;width:100%;cursor:crosshair;user-select:none}
.canvas-hint{font-size:12px;color:var(--warn);font-weight:700;letter-spacing:.03em;margin-bottom:8px;text-align:center}
canvas{display:block;width:100%;height:auto;border-radius:10px;border:1px solid var(--border);background:#000}
.sel-box{position:absolute;pointer-events:none;border-radius:3px;border:2px solid var(--warn);background:rgba(245,158,11,.15)}
.sel-info{
  display:flex;align-items:center;gap:8px;margin-top:10px;padding:8px 12px;
  background:rgba(245,158,11,.07);border:1px solid rgba(245,158,11,.2);
  border-radius:8px;font-size:13px;color:var(--warn);
}

/* ─── Method grid ────────────────────────────────────────────────────────────── */
.method-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:20px}
.method-card{
  display:flex;flex-direction:column;align-items:center;gap:5px;
  padding:14px 10px;background:var(--surface2);border:1.5px solid var(--border);
  border-radius:var(--radius-sm);cursor:pointer;transition:var(--t);position:relative;
}
.method-card:hover{border-color:var(--border-strong);background:var(--surface3)}
.method-card.active{border-color:var(--primary);background:rgba(124,58,237,.1);box-shadow:0 0 0 3px rgba(124,58,237,.13)}
.method-icon{font-size:22px}
.method-name{font-size:13px;font-weight:700}
.method-desc{font-size:11px;color:var(--text-3);text-align:center}
.method-badge{position:absolute;top:6px;right:6px;font-size:10px;font-weight:700;padding:2px 6px;border-radius:4px;background:rgba(34,197,94,.12);color:#22c55e}
.method-badge.off{background:rgba(239,68,68,.1);color:var(--danger)}

/* ─── Capture / toggle ───────────────────────────────────────────────────────── */
.capture-bar{margin:12px 0}
.capture-btn{
  display:flex;align-items:center;gap:8px;width:100%;padding:11px 18px;
  background:rgba(124,58,237,.1);border:1px solid rgba(124,58,237,.28);
  border-radius:var(--radius-sm);font-size:14px;font-weight:600;
  color:var(--primary-light);cursor:pointer;transition:var(--t);
}
.capture-btn:hover{background:rgba(124,58,237,.2);border-color:var(--primary)}
.fullscreen-toggle{margin:14px 0;padding:12px 16px;background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius-sm)}
.toggle-label{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-2);cursor:pointer;font-weight:600}
.toggle-input{display:none}
.toggle-track{width:38px;height:22px;flex-shrink:0;background:var(--surface3);border:1px solid var(--border-strong);border-radius:11px;position:relative;transition:var(--t)}
.toggle-thumb{width:16px;height:16px;border-radius:50%;background:var(--text-3);position:absolute;top:2px;left:2px;transition:var(--t)}
.toggle-input:checked~.toggle-track{background:var(--primary)}
.toggle-input:checked~.toggle-track .toggle-thumb{left:18px;background:#fff}

/* ─── Logo controls ──────────────────────────────────────────────────────────── */
.logo-controls{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;display:flex;flex-direction:column;gap:22px}
.control-section{}
.control-label{display:flex;align-items:center;justify-content:space-between;font-size:13px;font-weight:700;color:var(--text-2);margin-bottom:12px}
.control-val{font-size:13px;font-weight:800;color:var(--primary-light);background:rgba(124,58,237,.1);padding:3px 10px;border-radius:6px}
.opacity-row{display:flex;align-items:center;gap:8px}
.opacity-hint{font-size:11px;color:var(--text-3);font-weight:500}

/* ─── Position grid ──────────────────────────────────────────────────────────── */
.pos-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;max-width:160px}
.pos-btn{
  aspect-ratio:1;display:grid;place-items:center;font-size:17px;
  border-radius:8px;border:1.5px solid var(--border);
  background:var(--surface2);cursor:pointer;color:var(--text-2);transition:var(--t);
}
.pos-btn:hover{border-color:var(--border-strong);background:var(--surface3);color:var(--text)}
.pos-btn.active{border-color:var(--primary);background:rgba(124,58,237,.15);color:var(--primary-light);box-shadow:0 0 0 3px rgba(124,58,237,.13)}

/* ─── Slider ─────────────────────────────────────────────────────────────────── */
.slider{-webkit-appearance:none;width:100%;height:5px;background:var(--surface3);border-radius:3px;outline:none;cursor:pointer}
.slider::-webkit-slider-thumb{-webkit-appearance:none;width:20px;height:20px;border-radius:50%;background:linear-gradient(135deg,var(--primary),#6366f1);border:3px solid var(--bg);cursor:pointer;box-shadow:0 0 8px var(--primary-glow);transition:transform .15s}
.slider::-webkit-slider-thumb:hover{transform:scale(1.2)}

/* ─── Buttons ────────────────────────────────────────────────────────────────── */
.cta-btn{
  display:flex;align-items:center;justify-content:center;gap:10px;
  width:100%;padding:14px 24px;margin-top:4px;
  background:linear-gradient(135deg,var(--primary),#6366f1);
  color:#fff;border:none;border-radius:var(--radius-sm);
  font-size:15px;font-weight:800;cursor:pointer;text-decoration:none;
  transition:opacity var(--t),transform var(--t),box-shadow var(--t);
  box-shadow:0 4px 24px var(--primary-glow);letter-spacing:.01em;
}
.cta-btn:hover{opacity:.9;box-shadow:0 6px 32px var(--primary-glow)}
.cta-btn:active{transform:scale(.98)}
.cta-btn:disabled{opacity:.35;cursor:not-allowed;box-shadow:none}
.ghost-btn{
  padding:7px 14px;background:transparent;border:1px solid var(--border-strong);
  border-radius:8px;font-size:13px;font-weight:600;color:var(--text-2);cursor:pointer;
  transition:var(--t);white-space:nowrap;
}
.ghost-btn:hover{color:var(--text);border-color:rgba(255,255,255,.22)}
.ghost-btn.small{padding:4px 10px;font-size:12px}
.link{background:none;border:none;color:var(--primary-light);cursor:pointer;font-size:inherit;font-weight:700;text-decoration:underline;text-underline-offset:2px}

/* ─── Progress ───────────────────────────────────────────────────────────────── */
.progress-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:52px 20px;text-align:center}
.progress-ring{width:64px;height:64px;margin:0 auto 20px}
.progress-spinner{width:64px;height:64px;border-radius:50%;border:3px solid var(--surface3);border-top-color:var(--primary);animation:spin .9s linear infinite;box-shadow:0 0 20px var(--primary-glow)}
@keyframes spin{to{transform:rotate(360deg)}}
.progress-title{font-size:18px;font-weight:800;margin-bottom:8px}
.progress-sub{font-size:13px;color:var(--text-3)}
.progress-bar-wrap{height:3px;background:var(--surface3);border-radius:2px;margin-top:24px;overflow:hidden;max-width:280px;margin-left:auto;margin-right:auto}
.progress-bar{height:100%;border-radius:2px;background:linear-gradient(90deg,var(--primary),#6366f1);animation:pbar 3.5s ease-in-out infinite}
@keyframes pbar{0%{width:4%}60%{width:78%}100%{width:93%}}

/* ─── Result ─────────────────────────────────────────────────────────────────── */
.result-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}
.result-header{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.result-badge{background:rgba(34,197,94,.12);border:1px solid rgba(34,197,94,.25);color:#22c55e;font-size:12px;font-weight:800;padding:4px 12px;border-radius:20px;letter-spacing:.04em}
.result-header h3{font-size:18px;font-weight:800}
.compare-wrap{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px;margin-bottom:20px}
.compare-item{text-align:center}
.compare-label{display:block;font-size:11px;font-weight:700;color:var(--text-3);letter-spacing:.06em;text-transform:uppercase;margin-bottom:8px}
.compare-item img{width:100%;border-radius:10px;border:1px solid var(--border)}
.compare-divider{font-size:22px;color:var(--text-3)}
.result-actions{display:flex;flex-direction:column;gap:8px}

/* ─── Live preview ───────────────────────────────────────────────────────────── */
.preview-section{border-top:1px solid var(--border);padding-top:16px;margin-top:4px}
.preview-label{display:flex;align-items:center;gap:7px;font-size:11px;font-weight:700;color:var(--text-3);letter-spacing:.05em;text-transform:uppercase;margin-bottom:8px}
.preview-canvas-wrap{
  position:relative;border-radius:10px;overflow:hidden;
  border:1px solid var(--border);background:var(--surface3);
  min-height:72px;display:flex;align-items:center;justify-content:center;
}
.preview-canvas-wrap canvas{display:block;width:100%;height:auto;border-radius:0;border:none;background:transparent;cursor:default}
.preview-empty{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--text-3);font-weight:500;pointer-events:none;text-align:center;padding:10px}
.preview-canvas-wrap canvas:not([data-ready]) + .preview-empty{display:flex}
.preview-canvas-wrap canvas[data-ready] + .preview-empty{display:none}

/* ─── Footer ─────────────────────────────────────────────────────────────────── */
.site-footer{
  position:relative;z-index:1;
  border-top:1px solid var(--border);
  background:rgba(15,15,26,.8);
  backdrop-filter:blur(10px);
  padding:18px 20px;
  margin-top:auto;
}
.footer-inner{
  max-width:1160px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  flex-wrap:wrap;
}
.footer-copy{font-size:13px;color:var(--text-3)}
.footer-copy a{color:var(--primary-light);text-decoration:none;font-weight:700;transition:color var(--t)}
.footer-copy a:hover{color:#fff}
.footer-ver{font-size:11px;color:var(--text-3);font-weight:600;letter-spacing:.05em;opacity:.6}

/* ─── Toast ──────────────────────────────────────────────────────────────────── */
.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%) translateY(80px);background:var(--surface2);border:1px solid var(--border-strong);color:var(--text);padding:12px 24px;border-radius:30px;font-size:14px;font-weight:600;transition:transform .3s cubic-bezier(.4,0,.2,1);z-index:9999;white-space:nowrap;box-shadow:0 8px 32px rgba(0,0,0,.5)}
.toast.show{transform:translateX(-50%) translateY(0)}
.toast.error{border-color:rgba(239,68,68,.4);color:var(--danger)}
.toast.success{border-color:rgba(34,197,94,.4);color:#22c55e}

/* ─── Responsive ─────────────────────────────────────────────────────────────── */
@media(max-width:768px){
  .panel-grid{grid-template-columns:1fr}
  .panel-aside{position:static;margin-top:20px}
}
@media(max-width:640px){
  .compare-wrap{grid-template-columns:1fr;gap:10px}
  .compare-divider{display:none}
  .method-grid{grid-template-columns:1fr 1fr}
  .two-drop-grid{grid-template-columns:1fr}
  .brand-name{font-size:20px}
  .pos-grid{max-width:130px}
  .footer-inner{flex-direction:column;text-align:center;gap:6px}
}