*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #08080e; --bg-card: #0e0e18; --bg-card-inner: #111120;
  --border: #1a1a2e; --border-light: #252540;
  --text: #e8e8f0; --text-dim: #7a7a90; --text-mid: #9a9ab0;
  --purple: #8b5cf6; --purple-light: #a78bfa;
  --cyan: #06b6d4; --cyan-light: #22d3ee;
  --blue: #3b82f6; --green: #10b981;
  --gradient-btn: linear-gradient(135deg, #7c3aed, #2563eb);
  --gradient-text: linear-gradient(135deg, #a78bfa, #22d3ee);
}
html { scroll-behavior: smooth; }
body { font-family: 'Inter', -apple-system, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

/* NAV */
nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: rgba(8,8,14,0.92); backdrop-filter: blur(24px); border-bottom: 1px solid rgba(255,255,255,0.04); }
nav .container { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.nav-brand { display: flex; align-items: center; gap: 10px; }
.logo-text { font-weight: 900; font-size: 0.92rem; letter-spacing: 3px; text-transform: uppercase; color: #fff; }
.logo-ai { background: var(--gradient-text); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a { font-size: 0.85rem; color: var(--text-dim); font-weight: 500; transition: color 0.2s; }
.nav-links a:hover { color: #fff; }
.nav-cta { background: var(--gradient-btn); color: #fff !important; padding: 9px 22px; border-radius: 8px; font-weight: 600; font-size: 0.85rem; }

/* TOOL PAGE */
.tool-page { padding: 100px 0 60px; min-height: 100vh; }
.tool-header { text-align: center; margin-bottom: 40px; }
.tool-header h1 { font-size: 2.2rem; font-weight: 800; margin-bottom: 12px; }
.tool-header h1 .accent { background: var(--gradient-text); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.tool-header p { color: var(--text-mid); font-size: 1.05rem; max-width: 600px; margin: 0 auto; }
.breadcrumb { text-align: center; margin-bottom: 24px; font-size: 0.85rem; color: var(--text-dim); }
.breadcrumb a { color: var(--purple-light); }
.breadcrumb a:hover { text-decoration: underline; }

/* DROP ZONE */
.drop-zone { border: 2px dashed var(--border-light); border-radius: 16px; padding: 60px 40px; text-align: center; cursor: pointer; transition: all 0.3s; background: var(--bg-card); margin-bottom: 24px; position: relative; }
.drop-zone:hover, .drop-zone.dragover { border-color: var(--purple); background: rgba(139,92,246,0.04); }
.drop-zone-icon { font-size: 3rem; margin-bottom: 16px; }
.drop-zone-text { color: var(--text-mid); font-size: 1rem; }
.drop-zone-text strong { color: var(--purple-light); }
.drop-zone input[type="file"] { display: none; }

/* CONTROLS */
.tool-controls { background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; padding: 24px; margin-bottom: 24px; }
.control-row { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-bottom: 16px; }
.control-row:last-child { margin-bottom: 0; }
.control-row label { font-size: 0.9rem; color: var(--text-mid); min-width: 100px; }
.control-row input[type="range"] { flex: 1; accent-color: var(--purple); }
.control-row input[type="number"], .control-row select { background: var(--bg); border: 1px solid var(--border); color: var(--text); padding: 8px 12px; border-radius: 8px; font-size: 0.9rem; }
.control-row select { min-width: 120px; }

/* BUTTONS */
.btn-primary { background: var(--gradient-btn); color: #fff; border: none; padding: 14px 32px; border-radius: 10px; font-weight: 700; font-size: 1rem; cursor: pointer; transition: all 0.25s; display: inline-flex; align-items: center; gap: 8px; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(124,58,237,0.4); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-secondary { background: transparent; color: #fff; border: 1px solid var(--border-light); padding: 12px 24px; border-radius: 10px; font-weight: 600; font-size: 0.9rem; cursor: pointer; transition: all 0.25s; }
.btn-secondary:hover { border-color: var(--purple); }
.btn-row { display: flex; gap: 12px; justify-content: center; margin: 24px 0; flex-wrap: wrap; }

/* RESULT */
.result-area { background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; padding: 24px; text-align: center; display: none; margin-top: 24px; }
.result-area.visible { display: block; }
.result-area img, .result-area canvas { max-width: 100%; max-height: 400px; border-radius: 8px; margin: 16px 0; }
.result-info { color: var(--text-mid); font-size: 0.9rem; margin: 12px 0; }

/* PROGRESS */
.progress-bar { width: 100%; height: 6px; background: var(--border); border-radius: 3px; overflow: hidden; margin: 16px 0; display: none; }
.progress-bar.visible { display: block; }
.progress-fill { height: 100%; background: var(--gradient-btn); border-radius: 3px; width: 0%; transition: width 0.3s; }

/* FILE LIST */
.file-list { margin: 16px 0; }
.file-item { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; background: var(--bg-card-inner); border: 1px solid var(--border); border-radius: 8px; margin-bottom: 8px; }
.file-item-name { font-size: 0.9rem; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 70%; }
.file-item-size { font-size: 0.8rem; color: var(--text-dim); }
.file-item-remove { background: none; border: none; color: #ef4444; cursor: pointer; font-size: 1.1rem; padding: 4px 8px; }

/* PAYWALL */
.paywall-overlay { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(8,8,14,0.92); z-index: 200; align-items: center; justify-content: center; }
.paywall-overlay.visible { display: flex; }
.paywall-box { background: var(--bg-card); border: 1px solid var(--border-light); border-radius: 16px; padding: 48px; max-width: 480px; text-align: center; }
.paywall-box h2 { font-size: 1.5rem; margin-bottom: 12px; }
.paywall-box p { color: var(--text-mid); margin-bottom: 24px; line-height: 1.7; }
.paywall-box .price { font-size: 2rem; font-weight: 800; background: var(--gradient-text); -webkit-background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 8px; }
.usage-counter { text-align: center; font-size: 0.82rem; color: var(--text-dim); margin-top: 12px; }

/* GRID (hub page) */
.tools-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; margin-bottom: 48px; }
.tool-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 14px; padding: 28px; transition: all 0.3s; display: flex; flex-direction: column; gap: 12px; }
.tool-card:hover { border-color: var(--purple); transform: translateY(-4px); box-shadow: 0 8px 32px rgba(139,92,246,0.1); }
.tool-card-icon { font-size: 2rem; }
.tool-card h3 { font-size: 1.1rem; font-weight: 700; }
.tool-card p { font-size: 0.88rem; color: var(--text-mid); flex: 1; }
.tool-card .badge { font-size: 0.72rem; color: var(--green); font-weight: 600; text-transform: uppercase; letter-spacing: 1px; }

/* CATEGORY */
.category-title { font-size: 1.4rem; font-weight: 700; margin-bottom: 20px; padding-top: 24px; }
.category-title .cat-icon { margin-right: 8px; }

/* SEARCH */
.search-box { max-width: 500px; margin: 0 auto 40px; position: relative; }
.search-box input { width: 100%; padding: 14px 20px 14px 48px; background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; color: var(--text); font-size: 1rem; outline: none; transition: border-color 0.2s; }
.search-box input:focus { border-color: var(--purple); }
.search-box .search-icon { position: absolute; left: 16px; top: 50%; transform: translateY(-50%); color: var(--text-dim); font-size: 1.1rem; }

/* FOOTER */
.tool-footer { text-align: center; padding: 40px 0; border-top: 1px solid var(--border); margin-top: 60px; color: var(--text-dim); font-size: 0.85rem; }
.tool-footer a { color: var(--purple-light); }

/* QR specific */
#qr-input { width: 100%; padding: 14px; background: var(--bg); border: 1px solid var(--border); border-radius: 8px; color: var(--text); font-size: 1rem; resize: vertical; min-height: 80px; }

@media (max-width: 768px) {
  .nav-links { display: none; }
  .tools-grid { grid-template-columns: 1fr; }
  .tool-header h1 { font-size: 1.6rem; }
  .drop-zone { padding: 40px 20px; }
}

/* SEO CONTENT */
.seo-content { margin-top: 60px; padding-top: 40px; border-top: 1px solid var(--border); }
.seo-content h2 { font-size: 1.4rem; font-weight: 700; margin-bottom: 16px; color: var(--text); }
.seo-content h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; color: var(--text); }
.seo-content p, .seo-content li { color: var(--text-mid); line-height: 1.8; font-size: 0.95rem; }
.seo-content ul, .seo-content ol { padding-left: 24px; margin-bottom: 20px; }
.seo-content li { margin-bottom: 6px; }
.seo-section { margin-bottom: 36px; }
.faq-item { background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px; padding: 20px; margin-bottom: 12px; }
.faq-item h3 { color: var(--purple-light); margin-bottom: 8px; font-size: 1rem; }
.faq-item p { margin: 0; }
.format-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.format-tag { background: var(--bg-card-inner); border: 1px solid var(--border); border-radius: 6px; padding: 6px 14px; font-size: 0.85rem; color: var(--text-mid); }

/* RELATED TOOLS */
.related-tools { margin-top: 48px; padding-top: 40px; border-top: 1px solid var(--border); }
.related-tools h2 { font-size: 1.4rem; font-weight: 700; margin-bottom: 20px; text-align: center; }
.related-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.related-grid .tool-card { padding: 22px; }
.related-grid .tool-card h3 { font-size: 1rem; }
.related-grid .tool-card p { font-size: 0.84rem; }

/* CROP TOOL */
.crop-container { position: relative; display: inline-block; max-width: 100%; margin: 16px auto; cursor: crosshair; }
.crop-container img { max-width: 100%; display: block; border-radius: 8px; }
.crop-box { position: absolute; border: 2px dashed var(--cyan); background: rgba(6,182,212,0.1); pointer-events: none; }
.crop-handles { display: flex; gap: 12px; justify-content: center; margin: 12px 0; flex-wrap: wrap; }
.crop-handles input { width: 80px; }