/* Minimal, clean, and fast styles */
:root {
  --bg: #ffffff;
  --text: #111827;
  --muted: #6b7280;
  --primary: #2563eb;
  --primary-600: #1d4ed8;
  --accent: #10b981;
  --accent-600: #059669;
  --border: #e5e7eb;
  --shadow: 0 6px 24px rgba(0,0,0,0.08);
  --radius: 12px;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font: 16px/1.5 system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
}
.container { max-width: 1100px; margin: 0 auto; padding: 0 16px; }
.navbar { position: sticky; top: 0; z-index: 50; background: var(--bg); border-bottom: 1px solid var(--border); backdrop-filter: saturate(1.2) blur(2px); }
.nav-inner { display: flex; justify-content: space-between; align-items: center; height: 64px; }
.logo { font-weight: 700; color: var(--text); text-decoration: none; }
.nav-actions { display: flex; gap: 12px; align-items: center; }
.btn { display: inline-flex; align-items: center; gap: 8px; border-radius: 999px; border: 1px solid var(--border); padding: 10px 16px; background: #fff; color: var(--text); text-decoration: none; box-shadow: var(--shadow); transition: transform .12s ease, box-shadow .12s ease; }
.btn:hover { transform: translateY(-1px); box-shadow: 0 8px 28px rgba(0,0,0,0.12); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.accent { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.ghost { background: #fff; }
.dropdown { position: relative; }
.dropdown-menu { position: absolute; top: 48px; left: 0; width: 260px; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 8px; display: none; }
.dropdown-menu.open { display: block; }
.dropdown-item { display: block; padding: 10px 12px; border-radius: 8px; text-decoration: none; color: var(--text); }
.dropdown-item:hover { background: #f8fafc; }
.hero { text-align: center; padding: 48px 0 28px; background: radial-gradient(900px 300px at 50% -180px, rgba(37, 99, 235, 0.10), transparent); }
.hero h1 { font-size: 32px; margin: 0 0 8px; }
.subtitle { color: var(--muted); margin: 0 0 24px; }
.upload-area { margin: 0 auto; max-width: 700px; }
.dropzone { border: 2px dashed var(--border); border-radius: var(--radius); padding: 28px; display: grid; place-items: center; gap: 10px; background: #fff; box-shadow: var(--shadow); }
.dropzone.dragover { border-color: var(--primary); background: #f8fafc; }
.icon { width: 32px; height: 32px; fill: var(--muted); }
.preview-grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); margin-top: 16px; }
.preview-item { background: #fff; border: 1px solid var(--border); border-radius: 10px; box-shadow: var(--shadow); overflow: hidden; }
.preview-item img { width: 100%; height: 120px; object-fit: cover; display: block; }
.tools-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); padding: 24px 0 60px; }
.tool-card { display: block; padding: 18px; border-radius: var(--radius); background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); text-decoration: none; color: var(--text); }
.tool-card:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(0,0,0,0.12); }
.tool-icon { width: 36px; height: 36px; color: var(--muted); margin-bottom: 8px; }
.tool-icon svg { width: 36px; height: 36px; fill: var(--muted); }
.footer { border-top: 1px solid var(--border); padding: 24px 0; background: #fff; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
.footer-nav { display: flex; gap: 14px; }
.footer-link { color: var(--muted); text-decoration: none; }
.footer-link:hover { color: var(--text); }
.muted { color: var(--muted); }

/* Tool page layout */
.tool-layout { display: grid; grid-template-columns: 1fr; gap: 16px; padding: 24px 0 60px; }
.panel { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px; }
.controls { display: grid; gap: 12px; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.control { display: flex; flex-direction: column; gap: 6px; }
.control label { font-weight: 600; font-size: 14px; }
.control input[type="number"],
.control input[type="text"],
.control select,
.control input[type="range"] { border: 1px solid var(--border); border-radius: 8px; padding: 10px; }
.canvas-wrap { display: grid; place-items: center; min-height: 280px; border: 1px dashed var(--border); border-radius: var(--radius); background: #f8fafc; }
canvas { max-width: 100%; height: auto; }

@media (min-width: 900px) {
  .tool-layout { grid-template-columns: 1.2fr .8fr; }
}