/* FileBito — Main Stylesheet */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:opsz,wght@9..40,300;9..40,500;9..40,700&family=Outfit:wght@400;600;800&display=swap');
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{--bg:#0a0a0f;--bg-card:#12121a;--bg-card-hover:#1a1a28;--bg-surface:#16161f;--accent:#ff6b35;--accent-glow:rgba(255,107,53,0.15);--accent2:#00d4aa;--accent3:#6c5ce7;--accent4:#fd79a8;--accent5:#00b894;--accent6:#e17055;--text:#e8e8ef;--text-dim:#8888a0;--text-muted:#55556a;--border:#222233;--radius:14px;--radius-sm:8px;--font-display:'Outfit',sans-serif;--font-body:'DM Sans',sans-serif}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);background:var(--bg);color:var(--text);min-height:100vh;overflow-x:hidden}
body::before{content:'';position:fixed;inset:0;background:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");pointer-events:none;z-index:9999}
a{color:var(--accent);text-decoration:none;transition:color 0.2s}
a:hover{color:var(--accent2)}

/* Header */
header{position:sticky;top:0;z-index:100;background:rgba(10,10,15,0.85);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);padding:0 2rem}
.header-inner{max-width:1280px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:64px;position:relative}
.logo{font-family:var(--font-display);font-weight:800;font-size:1.4rem;color:var(--text);text-decoration:none;display:flex;align-items:center;gap:0.5rem}
.logo-icon{width:32px;height:32px;display:flex;align-items:center;justify-content:center}
.logo-icon svg{width:32px;height:32px}
nav{display:flex;gap:0.25rem;align-items:center}
nav a{color:var(--text-dim);padding:0.4rem 0.8rem;border-radius:var(--radius-sm);font-size:0.8rem;font-weight:500;transition:all 0.2s}
nav a:hover,nav a.active{color:var(--text);background:var(--bg-card)}
.lang-select{background:var(--bg-card);border:1px solid var(--border);color:var(--text);padding:0.3rem 0.5rem;border-radius:var(--radius-sm);font-size:0.75rem;font-family:var(--font-body);cursor:pointer;margin-left:0.5rem}

/* Hamburger Menu Button */
.hamburger{display:none;width:40px;height:40px;border:1px solid var(--border);border-radius:var(--radius-sm);background:transparent;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;padding:8px}
.hamburger span{display:block;width:20px;height:2px;background:var(--text);border-radius:2px;transition:all 0.3s}
.hamburger.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

/* Hero */
.hero{max-width:1280px;margin:0 auto;padding:5rem 2rem 3rem;text-align:center;position:relative}
.hero::before{content:'';position:absolute;top:-100px;left:50%;transform:translateX(-50%);width:600px;height:600px;background:radial-gradient(circle,var(--accent-glow) 0%,transparent 70%);pointer-events:none}
.hero h1{font-family:var(--font-display);font-size:clamp(2.5rem,6vw,4rem);font-weight:800;line-height:1.1;margin-bottom:1rem;position:relative}
.hero h1 span{color:var(--accent)}
.hero p{font-size:1.1rem;color:var(--text-dim);max-width:560px;margin:0 auto 1.5rem;line-height:1.6}
.hero-badges{display:flex;gap:0.75rem;justify-content:center;flex-wrap:wrap;margin-bottom:2rem}
.hero-badge{display:flex;align-items:center;gap:0.4rem;padding:0.4rem 0.8rem;border-radius:100px;background:var(--bg-card);border:1px solid var(--border);font-size:0.75rem;color:var(--text-dim)}

/* Category Tabs */
.category-tabs{display:flex;justify-content:center;gap:0.5rem;margin-bottom:3rem;flex-wrap:wrap;padding:0 1rem}
.cat-tab{display:flex;align-items:center;gap:0.5rem;padding:0.65rem 1.2rem;border-radius:100px;border:1px solid var(--border);background:var(--bg-card);color:var(--text-dim);font-family:var(--font-body);font-size:0.8rem;font-weight:500;cursor:pointer;transition:all 0.3s}
.cat-tab:hover{border-color:var(--text-muted);color:var(--text)}
.cat-tab.active{border-color:var(--accent);background:var(--accent-glow);color:var(--accent)}

/* Tools Grid */
.tools-section{max-width:1280px;margin:0 auto;padding:0 2rem 4rem}
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1rem}
.tool-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;text-decoration:none;color:var(--text);transition:all 0.3s cubic-bezier(0.4,0,0.2,1);position:relative;overflow:hidden;display:block}
.tool-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--card-color,var(--accent)),transparent);opacity:0;transition:opacity 0.3s}
.tool-card:hover{border-color:var(--card-color,var(--accent));background:var(--bg-card-hover);transform:translateY(-2px);color:var(--text)}
.tool-card:hover::before{opacity:1}
.tool-card-icon{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:1rem;color:var(--card-color,var(--accent))}
.tool-card h3{font-family:var(--font-display);font-size:1rem;font-weight:600;margin-bottom:0.4rem}
.tool-card p{font-size:0.8rem;color:var(--text-dim);line-height:1.5}
.tool-badge{position:absolute;top:1rem;right:1rem;font-size:0.6rem;padding:0.15rem 0.5rem;border-radius:100px;background:var(--accent3);color:white;font-weight:600;text-transform:uppercase;letter-spacing:0.5px}

/* Usage Limit Banner */
.limit-banner{background:rgba(255,107,53,0.1);border:1px solid rgba(255,107,53,0.3);border-radius:var(--radius-sm);padding:0.6rem 1rem;font-size:0.75rem;color:var(--accent);display:flex;align-items:center;gap:0.5rem;margin-bottom:1rem}
.limit-banner.exhausted{background:rgba(255,85,85,0.1);border-color:rgba(255,85,85,0.3);color:#ff5555}

/* Footer */
footer{border-top:1px solid var(--border);padding:2.5rem 2rem 1.5rem}
.footer-inner{max-width:1280px;margin:0 auto}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:2rem;margin-bottom:2rem}
.footer-brand .logo{margin-bottom:0.75rem}
.footer-brand p{font-size:0.8rem;color:var(--text-dim);line-height:1.6;max-width:280px}
.footer-col h4{font-family:var(--font-display);font-size:0.85rem;font-weight:600;margin-bottom:0.75rem;color:var(--text)}
.footer-col a{display:block;font-size:0.8rem;color:var(--text-dim);margin-bottom:0.4rem;transition:color 0.2s}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid var(--border);padding-top:1.5rem;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem;font-size:0.75rem;color:var(--text-muted)}

/* Legal Pages */
.legal-page{max-width:800px;margin:0 auto;padding:3rem 2rem 4rem}
.legal-page h1{font-family:var(--font-display);font-size:2rem;font-weight:800;margin-bottom:0.5rem}
.legal-page .date{font-size:0.85rem;color:var(--text-dim);margin-bottom:2rem}
.legal-page h2{font-family:var(--font-display);font-size:1.2rem;font-weight:700;margin:2rem 0 0.75rem;color:var(--accent)}
.legal-page p,.legal-page li{font-size:0.9rem;color:var(--text-dim);line-height:1.8;margin-bottom:0.75rem}
.legal-page ul{padding-left:1.5rem}

/* Responsive — Mobile */
@media(max-width:768px){
  .hamburger{display:flex}
  nav{display:none;position:absolute;top:64px;left:-2rem;right:-2rem;background:rgba(10,10,15,0.97);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);flex-direction:column;padding:1rem 2rem;gap:0.25rem;z-index:99}
  nav.open{display:flex}
  nav a{padding:0.75rem 1rem;font-size:0.9rem;border-radius:var(--radius-sm);width:100%}
  nav a:hover,nav a.active{background:var(--bg-card-hover)}
  .lang-select{margin:0.5rem 0 0;width:100%;padding:0.6rem;font-size:0.85rem}
  .hero{padding:3rem 1.5rem 2rem}
  .hero-badges{flex-direction:column;align-items:center;gap:0.5rem}
  .tools-section{padding:0 1rem 3rem}
  .tools-grid{grid-template-columns:1fr 1fr;gap:0.75rem}
  .tool-card{padding:1rem}
  .tool-card-icon{width:36px;height:36px;margin-bottom:0.75rem}
  .tool-card h3{font-size:0.85rem}
  .tool-card p{font-size:0.7rem}
  .footer-grid{grid-template-columns:1fr;gap:1.5rem;text-align:center}
  .footer-brand p{margin:0 auto;max-width:100%}
  .footer-brand .logo{justify-content:center}
  .footer-bottom{justify-content:center;text-align:center;flex-direction:column;gap:0.5rem}
  .category-tabs{gap:0.35rem;padding:0 0.5rem}
  .cat-tab{padding:0.5rem 0.85rem;font-size:0.75rem}
  .workspace-header h2{font-size:1rem}
  .limit-banner{font-size:0.65rem;padding:0.4rem 0.6rem}
}
@media(max-width:480px){
  .tools-grid{grid-template-columns:1fr}
  .hero h1{font-size:2rem}
  .hero p{font-size:0.9rem}
}

/* SEO Content Section */
.seo-section{border-top:1px solid var(--border);padding:4rem 2rem}
.seo-inner{max-width:1280px;margin:0 auto}
.seo-section h2{font-family:var(--font-display);font-size:1.6rem;font-weight:800;margin-bottom:1rem;text-align:center}
.seo-section > .seo-inner > p{font-size:0.9rem;color:var(--text-dim);line-height:1.8}
.seo-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:1rem;margin-top:1rem}
.seo-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;text-align:center;transition:border-color 0.3s}
.seo-card:hover{border-color:var(--accent)}
.seo-card-icon{font-size:2rem;margin-bottom:0.5rem}
.seo-card h3{font-family:var(--font-display);font-size:0.95rem;font-weight:700;margin-bottom:0.4rem;color:var(--text)}
.seo-card p{font-size:0.75rem;margin-bottom:0;line-height:1.6;color:var(--text-dim)}

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

/* Workspace — Full Page (shows below header, above footer) */
.workspace-page{display:none}
.workspace-page.active{display:block;min-height:80vh;padding:0 2rem 4rem}
.workspace{background:var(--bg);max-width:900px;margin:0 auto}
.workspace-header{display:flex;align-items:center;justify-content:space-between;padding:1.25rem 0;border-bottom:1px solid var(--border);margin-bottom:1.5rem}
.workspace-header h2{font-family:var(--font-display);font-size:1.2rem;font-weight:700;display:flex;align-items:center;gap:0.5rem}
.btn-close-ws{width:36px;height:36px;border-radius:10px;border:1px solid var(--border);background:transparent;color:var(--text-dim);font-size:1.2rem;cursor:pointer;display:grid;place-items:center;transition:all 0.2s}
.btn-close-ws:hover{background:var(--bg-card);color:var(--text)}
.workspace-body{padding:1.5rem}

/* Drop Zone */
.drop-zone{border:2px dashed var(--border);border-radius:var(--radius);padding:3rem 2rem;text-align:center;cursor:pointer;transition:all 0.3s;position:relative}
.drop-zone:hover,.drop-zone.dragover{border-color:var(--accent);background:var(--accent-glow)}
.drop-zone-icon{font-size:2.5rem;margin-bottom:0.75rem}
.drop-zone h3{font-family:var(--font-display);font-size:1.1rem;margin-bottom:0.4rem}
.drop-zone p{font-size:0.8rem;color:var(--text-dim)}
.drop-zone input[type="file"]{position:absolute;inset:0;opacity:0;cursor:pointer}

/* Buttons */
.btn{font-family:var(--font-body);font-size:0.875rem;font-weight:600;padding:0.75rem 1.5rem;border-radius:var(--radius-sm);border:none;cursor:pointer;transition:all 0.2s;display:inline-flex;align-items:center;gap:0.5rem}
.btn-primary{background:var(--accent);color:white}
.btn-primary:hover{filter:brightness(1.15);transform:translateY(-1px)}
.btn-primary:disabled{opacity:0.4;cursor:not-allowed;transform:none}
.btn-secondary{background:var(--bg-card);color:var(--text);border:1px solid var(--border)}
.btn-secondary:hover{border-color:var(--text-muted)}

/* Results */
.result-area{margin-top:1.5rem;padding:1.5rem;background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);display:none}
.result-area.visible{display:block;animation:fadeIn 0.3s}
.result-preview{max-width:100%;max-height:400px;border-radius:var(--radius-sm);object-fit:contain;display:block;margin:0 auto}
.result-stats{display:flex;gap:1.5rem;margin-top:1rem;flex-wrap:wrap}
.stat{display:flex;flex-direction:column;gap:0.2rem}
.stat-label{font-size:0.7rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.5px}
.stat-value{font-family:var(--font-display);font-size:1.1rem;font-weight:700}
.stat-value.good{color:var(--accent2)}
.stat-value.warn{color:var(--accent)}

/* Form Controls */
.form-group{margin-bottom:1rem}
.form-group label{display:block;font-size:0.8rem;font-weight:500;color:var(--text-dim);margin-bottom:0.4rem}
.form-input,.form-select,.form-textarea{width:100%;padding:0.65rem 1rem;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg-card);color:var(--text);font-family:var(--font-body);font-size:0.875rem;transition:border-color 0.2s}
.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--accent)}
.form-textarea{min-height:140px;resize:vertical;font-family:'Courier New',monospace;font-size:0.8rem;line-height:1.5}
.form-row{display:flex;gap:1rem;flex-wrap:wrap}
.form-row .form-group{flex:1;min-width:200px}
.slider-container{display:flex;align-items:center;gap:1rem}
input[type="range"]{flex:1;-webkit-appearance:none;height:6px;border-radius:3px;background:var(--border);outline:none}
input[type="range"]::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;border-radius:50%;background:var(--accent);cursor:pointer}
.slider-value{font-family:var(--font-display);font-weight:700;font-size:0.9rem;min-width:40px;text-align:right}

/* File List */
.file-list{margin-top:1rem}
.file-item{display:flex;align-items:center;gap:0.75rem;padding:0.75rem 1rem;background:var(--bg-card);border-radius:var(--radius-sm);margin-bottom:0.5rem;border:1px solid var(--border)}
.file-item-icon{font-size:1.3rem}
.file-item-name{flex:1;font-size:0.85rem;font-weight:500}
.file-item-size{font-size:0.75rem;color:var(--text-dim)}
.file-item-remove{width:28px;height:28px;border-radius:6px;border:none;background:transparent;color:var(--text-muted);cursor:pointer;display:grid;place-items:center;transition:all 0.2s}
.file-item-remove:hover{background:rgba(255,50,50,0.15);color:#ff5555}

/* Code Output */
.code-output{background:#0d0d14;border:1px solid var(--border);border-radius:var(--radius-sm);padding:1rem;font-family:'Courier New',monospace;font-size:0.8rem;line-height:1.6;color:var(--accent2);white-space:pre-wrap;word-break:break-all;max-height:400px;overflow-y:auto;margin-top:1rem}
.code-wrapper{position:relative}
.btn-copy{position:absolute;top:0.5rem;right:0.5rem;padding:0.3rem 0.6rem;font-size:0.7rem;border-radius:6px;background:var(--bg-surface);color:var(--text-dim);border:1px solid var(--border);cursor:pointer;transition:all 0.2s}
.btn-copy:hover{color:var(--text);border-color:var(--accent)}

/* QR & Progress */
.qr-output{display:flex;flex-direction:column;align-items:center;gap:1rem;padding:2rem}
.progress-bar{width:100%;height:4px;background:var(--border);border-radius:2px;overflow:hidden;margin-top:1rem;display:none}
.progress-bar.active{display:block}
.progress-fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent2));border-radius:2px;transition:width 0.3s;width:0%}
.actions-bar{display:flex;gap:0.75rem;margin-top:1.5rem;flex-wrap:wrap}

@media(max-width:768px){.workspace{width:100%;max-height:100vh;border-radius:0}.form-row{flex-direction:column}.form-row .form-group{min-width:100%}}