*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#818cf8;--secondary:#c084fc;
  --bg:#0f0f14;--bg-surface:#18181f;--bg-card:#1e1e28;
  --border:rgba(255,255,255,.08);--border-hover:rgba(129,140,248,.3);
  --text:#e8e8f0;--text-muted:#8888a8;--text-faint:#555570;
  --radius-sm:8px;--radius-md:14px;--radius-lg:20px;
  --transition:.2s cubic-bezier(.4,0,.2,1)
}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;min-height:100vh}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}

/* ── HEADER ── */
.site-header{position:sticky;top:0;z-index:100;background:rgba(15,15,20,.9);backdrop-filter:blur(16px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;gap:24px;height:64px;width:100%;max-width:1280px;margin-inline:auto;padding-inline:clamp(16px,4vw,48px)}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-icon{width:36px;height:36px}
.logo-text{font-size:1.1rem;font-weight:700;letter-spacing:-.02em;background:linear-gradient(135deg,#fff 40%,var(--primary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{padding:6px 14px;border-radius:var(--radius-sm);font-size:.9rem;font-weight:500;color:var(--text-muted);transition:all var(--transition)}
.nav-link:hover,.nav-link.active{color:var(--text);background:rgba(255,255,255,.06)}

/* ── LAYOUT ── */
.main-wrap{width:100%;max-width:1280px;margin-inline:auto;padding:clamp(16px,2.5vw,36px) clamp(16px,4vw,48px) clamp(40px,6vw,80px)}

/* ── HERO ── */
.tool-hero{text-align:center;padding:clamp(14px,2.5vw,32px) 0 clamp(18px,2.5vw,28px)}
.tool-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 14px;border-radius:999px;font-size:.75rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;background:rgba(129,140,248,.1);border:1px solid rgba(129,140,248,.25);color:#a5b4fc;margin-bottom:14px}
.tool-title{font-size:clamp(2rem,5vw,3rem);font-weight:900;letter-spacing:-.04em;line-height:1.1;margin-bottom:8px}
.gradient-title{background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.tool-subtitle{font-size:clamp(.9rem,2vw,1.05rem);color:var(--text-muted);max-width:560px;margin:0 auto}

/* ── MODE TABS ── */
.mode-tabs{display:flex;gap:0;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:4px;margin-bottom:14px;align-self:center;width:fit-content;margin-inline:auto}
.mode-tab{padding:8px 22px;border-radius:var(--radius-sm);font-size:.85rem;font-weight:700;color:var(--text-muted);transition:all var(--transition);cursor:pointer}
.mode-tab.active{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#0f0f14}

/* ── TOOLBAR ── */
.toolbar{display:flex;align-items:center;gap:8px;padding:12px 16px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);margin-bottom:12px;flex-wrap:wrap}
.toolbar-group{display:flex;align-items:center;gap:6px}
.toolbar-divider{width:1px;height:22px;background:var(--border);flex-shrink:0}
.btn-tool{display:inline-flex;align-items:center;gap:5px;padding:6px 13px;border-radius:var(--radius-sm);font-size:.8rem;font-weight:700;transition:all var(--transition);white-space:nowrap}
.btn-tool svg{width:14px;height:14px}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#0f0f14}
.btn-primary:hover{opacity:.88}
.btn-secondary{background:rgba(255,255,255,.06);color:var(--text-muted);border:1px solid var(--border)}
.btn-secondary:hover{color:var(--text);border-color:rgba(255,255,255,.18);background:rgba(255,255,255,.09)}
.btn-danger{color:#f87171;border:1px solid rgba(248,113,113,.2)}
.btn-danger:hover{background:rgba(248,113,113,.08);border-color:rgba(248,113,113,.4)}

/* ── EDITOR ── */
.editor-layout{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:start}
.editor-pane{display:flex;flex-direction:column;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:border-color var(--transition)}
.editor-pane:focus-within{border-color:var(--border-hover)}
.editor-pane.error-state{border-color:rgba(248,113,113,.4)}
.pane-header{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;border-bottom:1px solid var(--border);background:rgba(0,0,0,.15);gap:8px;flex-wrap:wrap}
.pane-title{font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--text-faint);display:flex;align-items:center;gap:6px}
.pane-actions{display:flex;gap:5px}
.pane-btn{padding:4px 10px;border-radius:6px;font-size:.75rem;font-weight:700;color:var(--text-muted);border:1px solid var(--border);transition:all var(--transition)}
.pane-btn:hover{color:var(--primary);border-color:rgba(129,140,248,.3);background:rgba(129,140,248,.06)}
.editor-textarea{flex:1;width:100%;min-height:280px;max-height:60vh;background:transparent;border:none;padding:16px;color:var(--text);font-family:'Fira Code','JetBrains Mono',monospace;font-size:.85rem;line-height:1.75;resize:vertical;outline:none;tab-size:2}
.editor-textarea::placeholder{color:var(--text-faint)}
.output-pre{flex:1;min-height:280px;max-height:60vh;padding:16px;font-family:'Fira Code','JetBrains Mono',monospace;font-size:.85rem;line-height:1.75;overflow:auto;white-space:pre-wrap;word-break:break-all;color:var(--text)}
.error-banner{display:none;background:rgba(248,113,113,.1);border-bottom:1px solid rgba(248,113,113,.2);padding:8px 16px;font-size:.8rem;color:#fca5a5;font-family:'Fira Code',monospace}
.error-banner.visible{display:block}

/* ── STATS BAR ── */
.stats-bar{display:flex;flex-wrap:wrap;gap:8px;padding:10px 14px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);margin-top:10px}
.stat-item{display:flex;align-items:center;gap:6px;padding:4px 10px;background:rgba(255,255,255,.04);border-radius:999px;border:1px solid var(--border)}
.stat-label{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--text-faint)}
.stat-value{font-size:.78rem;font-weight:700;color:var(--primary)}

/* ── BATCH SECTION ── */
.batch-layout{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:start}

/* ── FILE SECTION ── */
.file-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:28px;text-align:center;transition:border-color var(--transition)}
.file-card:hover{border-color:var(--border-hover)}
.file-drop-zone{border:2px dashed var(--border);border-radius:var(--radius-md);padding:32px 24px;cursor:pointer;transition:all var(--transition);position:relative}
.file-drop-zone:hover{border-color:var(--primary);background:rgba(129,140,248,.04)}
.file-drop-icon{width:40px;height:40px;margin:0 auto 10px;color:var(--text-faint)}
.file-drop-text{font-size:.9rem;color:var(--text-muted);margin-bottom:6px}
.file-drop-sub{font-size:.78rem;color:var(--text-faint)}
.file-input-hidden{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%}
.file-result{margin-top:14px;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:14px;text-align:left}
.file-result-label{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--text-faint);margin-bottom:6px}
.file-result-value{font-family:'Fira Code',monospace;font-size:.78rem;color:var(--text-muted);word-break:break-all;line-height:1.6;max-height:140px;overflow-y:auto}

/* ── PAGE SECTIONS ── */
.page-section{padding:clamp(20px,3vw,40px) 0}
.section-head{text-align:center;margin-bottom:28px}
.section-title{font-size:clamp(1.3rem,3vw,1.8rem);font-weight:800;letter-spacing:-.02em;margin-bottom:8px}
.section-desc{font-size:.92rem;color:var(--text-muted);max-width:580px;margin:0 auto}
.section-divider{height:1px;background:var(--border);margin:0}

/* ── STEPS GRID ── */
.steps-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.step-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:20px;transition:border-color var(--transition)}
.step-card:hover{border-color:var(--border-hover)}
.step-number{width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--secondary));display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.9rem;color:#0f0f14;margin-bottom:12px}
.step-title{font-size:.95rem;font-weight:700;margin-bottom:6px}
.step-desc{font-size:.82rem;color:var(--text-muted);line-height:1.6}

/* ── FEATURES GRID ── */
.features-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px}
.feature-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:20px;transition:border-color var(--transition)}
.feature-card:hover{border-color:var(--border-hover)}
.feature-icon{font-size:1.5rem;margin-bottom:10px}
.feature-title{font-size:.92rem;font-weight:700;margin-bottom:6px}
.feature-desc{font-size:.8rem;color:var(--text-muted);line-height:1.6}

/* ── CHEAT GRID ── */
.cheat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.cheat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:18px;transition:border-color var(--transition)}
.cheat-card:hover{border-color:var(--border-hover)}
.cheat-title{font-size:.8rem;font-weight:800;text-transform:uppercase;letter-spacing:.07em;color:var(--primary);margin-bottom:10px}
.cheat-body{font-family:'Fira Code',monospace;font-size:.78rem;line-height:1.8;color:var(--text-muted)}

/* ── FAQ ── */
.faq-list{display:flex;flex-direction:column;gap:8px;max-width:800px;margin-inline:auto}
.faq-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;transition:border-color var(--transition)}
.faq-item:hover{border-color:var(--border-hover)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;padding:16px 20px;font-size:.92rem;font-weight:700;color:var(--text);text-align:left;gap:12px;cursor:pointer;background:none}
.faq-icon{font-size:1.2rem;font-weight:400;color:var(--primary);flex-shrink:0;transition:transform var(--transition)}
.faq-a{display:none;padding:0 20px 16px;font-size:.87rem;color:var(--text-muted);line-height:1.7}
.faq-a p{margin:0}
.faq-a code{background:rgba(129,140,248,.1);color:var(--primary);padding:1px 6px;border-radius:4px;font-size:.85em}
.faq-item.open .faq-a{display:block}
.faq-item.open .faq-icon{transform:rotate(45deg)}

/* ── RELATED ── */
.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}
.related-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:16px;text-decoration:none;transition:border-color var(--transition);display:block}
.related-card:hover{border-color:var(--border-hover)}
.related-icon{width:36px;height:36px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;margin-bottom:10px}
.related-icon svg{width:18px;height:18px;stroke:#fff}
.related-name{font-size:.9rem;font-weight:700;color:var(--text);margin-bottom:4px}
.related-desc{font-size:.8rem;color:var(--text-faint);margin-bottom:8px}
.related-link{font-size:.78rem;font-weight:700;color:var(--primary)}

/* ── AD SLOT ── */
.ad-slot{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);min-height:90px;display:flex;align-items:center;justify-content:center}

/* ── TOAST ── */
.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%) translateY(20px);background:rgba(30,30,40,.95);backdrop-filter:blur(12px);color:var(--text);padding:10px 22px;border-radius:999px;font-size:.85rem;font-weight:600;pointer-events:none;opacity:0;transition:all .25s;border:1px solid var(--border);z-index:999;white-space:nowrap}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ── FOOTER ── */
.site-footer{background:var(--bg-card);border-top:1px solid var(--border);padding:clamp(32px,4vw,56px) clamp(16px,4vw,48px) 24px;margin-top:0}
.footer-grid{max-width:1280px;margin-inline:auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:32px}
.footer-brand-text{font-size:.85rem;color:var(--text-faint);margin-top:8px;line-height:1.6;max-width:280px}
.footer-heading{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--text-faint);margin-bottom:12px}
.footer-links{display:flex;flex-direction:column;gap:8px}
.footer-links a{font-size:.87rem;color:var(--text-muted);transition:color var(--transition)}
.footer-links a:hover{color:var(--text)}
.footer-bottom{max-width:1280px;margin-inline:auto;padding-top:20px;border-top:1px solid var(--border);display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:.8rem;color:var(--text-faint)}

/* ── RESPONSIVE ── */
@media(max-width:900px){
  .editor-layout,.batch-layout{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){
  .footer-grid{grid-template-columns:1fr}
  .mode-tabs{width:100%}
  .mode-tab{flex:1;text-align:center}
}