/* Inter font is loaded via in the HTML for faster first paint */
/* ── Design tokens ─────────────────────────────────────── */
:root {
--bg: #080808;
--bg-2: #0d0d0d;
--surface: #111111;
--surface-2: #161616;
--border: #1e1e1e;
--border-2: #2a2a2a;
--text: #f0f0f0;
--text-2: #a0a0a0;
--text-3: #666666;
--text-4: #444444;
--accent: #10b981;
--accent-h: #059669;
--accent-l: #34d399;
--accent-bg: rgba(16,185,129,.12);
--glow: rgba(16,185,129,.08);
--red: #ef4444;
--amber: #f59e0b;
--r: 12px;
--r-sm: 8px;
--r-lg: 16px;
--ease: .2s ease;
}
/* ── Reset ─────────────────────────────────────────────── */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-family:'Inter',system-ui,sans-serif}
body{background:var(--bg);color:var(--text);font-family:'Inter',system-ui,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}
::selection{background:var(--accent-bg);color:#fff}
::-webkit-scrollbar{width:5px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:#2a2a2a;border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:#444}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
/* ── Layout ────────────────────────────────────────────── */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 64px}}
.section{padding:64px 0}
@media(min-width:768px){.section{padding:80px 0}}
.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:1fr}
.grid-3{grid-template-columns:1fr}
.grid-4{grid-template-columns:1fr 1fr}
@media(min-width:768px){.grid-2{grid-template-columns:1fr 1fr}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}}
.text-center{text-align:center}
.mx-auto{margin-left:auto;margin-right:auto}
.max-w-xl{max-width:580px}
.max-w-3xl{max-width:768px}
.max-w-4xl{max-width:896px}
.max-w-5xl{max-width:1024px}
.max-w-6xl{max-width:1152px}
/* ── Typography ────────────────────────────────────────── */
.label{font-size:11px;font-weight:500;color:var(--accent);text-transform:uppercase;letter-spacing:.12em;margin-bottom:12px}
h1{font-size:2.5rem;font-weight:700;color:#fff;line-height:1.1;letter-spacing:-.03em}
h2{font-size:2rem;font-weight:700;color:#fff;line-height:1.2;letter-spacing:-.02em}
h3{font-size:1.125rem;font-weight:500;color:#fff}
@media(min-width:768px){h1{font-size:3.5rem}h2{font-size:2.5rem}}
@media(min-width:1024px){h1{font-size:4.5rem}}
.text-gradient{background:linear-gradient(135deg,#fff 20%,var(--text-2) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.text-muted{color:#888}
.text-dim{color:#666}
.text-faint{color:#555}
.text-ghost{color:#444}
.text-sub{color:var(--text-3)}
.text-white{color:#fff}
.text-sm{font-size:.875rem}
.text-xs{font-size:.75rem}
.text-lg{font-size:1.125rem}
.text-xl{font-size:1.25rem}
.leading-relaxed{line-height:1.7}
.font-medium{font-weight:500}
.font-semibold{font-weight:600}
.font-bold{font-weight:700}
.mb-2{margin-bottom:8px}
.mb-3{margin-bottom:12px}
.mb-4{margin-bottom:16px}
.mb-6{margin-bottom:24px}
.mb-8{margin-bottom:32px}
.mb-12{margin-bottom:48px}
.mb-14{margin-bottom:56px}
.mt-4{margin-top:16px}
.mt-6{margin-top:24px}
.mt-8{margin-top:32px}
.mt-12{margin-top:48px}
.mt-16{margin-top:64px}
.pt-24{padding-top:96px}
.pb-16{padding-bottom:64px}
/* ── Cards & Surfaces ──────────────────────────────────── */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:24px;transition:border-color var(--ease),transform var(--ease)}
.card:hover{border-color:var(--border-2);transform:translateY(-1px)}
.card-dark{background:var(--surface);border:1px solid var(--border-2);border-radius:var(--r);padding:20px}
.glass{background:rgba(20,20,20,.6);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid rgba(255,255,255,.07)}
.glass-strong{background:rgba(10,10,10,.94);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border:1px solid rgba(255,255,255,.08)}
/* ── Buttons ───────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 24px;border-radius:var(--r);font-size:14px;font-weight:600;font-family:inherit;cursor:pointer;transition:all var(--ease);border:none}
.btn-primary{background:#efefef;color:#0c0c0c;border:1px solid rgba(255,255,255,.12)}
.btn-primary:hover{background:#fff;transform:translateY(-1px);box-shadow:0 4px 24px rgba(255,255,255,.1)}
.btn-secondary{background:transparent;border:1px solid var(--border-2);color:var(--text)}
.btn-secondary:hover{background:rgba(255,255,255,.04);border-color:#555}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-h);transform:translateY(-1px);box-shadow:0 4px 24px rgba(16,185,129,.3)}
.btn-accent:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.btn-lg{padding:14px 32px;font-size:16px;border-radius:var(--r-lg)}
/* ── Navbar ────────────────────────────────────────────── */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;transition:all .3s}
.nav.scrolled{background:rgba(8,8,8,.94);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border-bottom:1px solid rgba(255,255,255,.06);box-shadow:0 4px 32px rgba(0,0,0,.5)}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;align-items:center;justify-content:space-between;height:64px}
@media(min-width:768px){.nav-inner{padding:0 64px;height:80px}}
.nav-logo{display:flex;align-items:center;gap:10px}
.nav-logo-icon{width:32px;height:32px;border-radius:8px;background:#fff;display:flex;align-items:center;justify-content:center;color:#000;font-weight:700;font-size:14px;transition:transform var(--ease)}
.nav-logo:hover .nav-logo-icon{transform:scale(1.05)}
.nav-logo-text{font-size:18px;font-weight:600;color:#fff;letter-spacing:-.02em}
.nav-links{display:none;align-items:center;gap:32px}
@media(min-width:768px){.nav-links{display:flex}}
.nav-links a{font-size:14px;color:var(--text-2);transition:color var(--ease)}
.nav-links a:hover{color:#fff}
.nav-toggle{display:flex;flex-direction:column;gap:5px;padding:8px;background:none;border:none;cursor:pointer}
@media(min-width:768px){.nav-toggle{display:none}}
.nav-toggle span{display:block;width:20px;height:2px;background:#fff;transition:all .3s;border-radius:2px}
.nav-toggle.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
.mobile-menu{display:none;padding:16px 20px;border-top:1px solid var(--border)}
.mobile-menu.open{display:flex;flex-direction:column;gap:12px}
.mobile-menu a{color:var(--text-2);padding:8px 0;font-size:16px;transition:color var(--ease)}
.mobile-menu a:hover{color:#fff}
/* ── Hero ──────────────────────────────────────────────── */
.hero{min-height:auto;display:flex;align-items:flex-start;justify-content:center;position:relative;overflow:hidden;padding-top:120px;padding-bottom:16px}
.hero-bg{position:absolute;inset:0}
.hero-grid{position:absolute;inset:0;opacity:.025;background-image:linear-gradient(rgba(255,255,255,.2) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.2) 1px,transparent 1px);background-size:60px 60px}
.hero-glow{position:absolute;width:800px;height:600px;border-radius:50%;background:radial-gradient(ellipse,rgba(16,185,129,.1),transparent 65%);filter:blur(80px);pointer-events:none;top:-5%;left:50%;transform:translateX(-50%)}
.hero-glow-2{position:absolute;width:400px;height:400px;border-radius:50%;background:radial-gradient(circle,rgba(16,185,129,.05),transparent 70%);filter:blur(60px);pointer-events:none;bottom:5%;right:5%}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(16,185,129,.08);border:1px solid rgba(16,185,129,.2);border-radius:9999px;padding:8px 16px;font-size:13px;color:var(--accent-l);margin-bottom:32px}
.hero-badge-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);animation:pulse 2s infinite}
.hero-cta{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-top:8px}
.hero-stats{display:flex;justify-content:center;gap:40px;margin-top:48px;padding-top:40px;border-top:1px solid rgba(255,255,255,.08)}
@media(min-width:768px){.hero-stats{gap:64px}}
.hero-stat-num{font-size:1.5rem;font-weight:700;color:#fff}
.hero-stat-lbl{font-size:12px;color:var(--text-3);margin-top:3px}
@media(min-width:768px){.hero-stat-num{font-size:1.875rem}}
.scroll-ind{position:absolute;bottom:32px;left:50%;transform:translateX(-50%);width:20px;height:36px;border-radius:9999px;border:1px solid var(--border-2);display:flex;align-items:flex-start;justify-content:center;padding:6px;animation:bounce 2s infinite}
.scroll-ind-dot{width:4px;height:10px;border-radius:9999px;background:#3a3a3a}
.hero-sub{font-size:1.1rem;color:var(--text-2);max-width:520px;margin:0 auto 32px;line-height:1.6}
@media(min-width:768px){.hero-sub{font-size:1.2rem}}
.hero-stat{text-align:center}
.btn-glow{box-shadow:0 0 24px rgba(16,185,129,.25),0 4px 12px rgba(16,185,129,.15)}
.btn-glow:hover{box-shadow:0 0 32px rgba(16,185,129,.35),0 6px 16px rgba(16,185,129,.2)}
/* ── Trust ─────────────────────────────────────────────── */
.trust{border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:48px 0}
.trust-logos{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:32px}
@media(min-width:768px){.trust-logos{gap:64px}}
.trust-logos span{color:#2e2e2e;font-size:14px;font-weight:500;letter-spacing:.02em;transition:color var(--ease);cursor:default}
.trust-logos span:hover{color:#555}
/* ── Tool ──────────────────────────────────────────────── */
.tool-controls{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:18px;align-items:stretch;background:rgba(255,255,255,.025);border:1px solid var(--border);border-radius:var(--r-lg);padding:12px}
.controls-group{display:flex;flex-direction:column;gap:8px;min-width:0}
.controls-label{display:block;font-size:10px;font-weight:600;color:var(--text-3);text-transform:uppercase;letter-spacing:.08em}
.controls-divider{width:1px;background:var(--border);margin:2px 2px}
.pill-group{display:flex;flex-wrap:wrap;gap:6px}
.pill{min-height:34px;padding:7px 13px;border-radius:var(--r-sm);font-size:13px;background:rgba(255,255,255,.02);border:1px solid var(--border);color:var(--text-2);cursor:pointer;font-family:inherit;transition:background .15s,border-color .15s,color .15s,transform .15s}
.pill:hover{color:#fff;background:rgba(255,255,255,.055);border-color:var(--border-2);transform:translateY(-1px)}
.pill.active{background:#f4f4f4;color:#080808;font-weight:600;border-color:#fff;box-shadow:0 8px 24px rgba(255,255,255,.08)}
.tool-grid{display:grid;gap:16px;align-items:stretch}
@media(min-width:1024px){.tool-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}}
.tool-panel{background:linear-gradient(180deg,rgba(18,18,18,.94),rgba(10,10,10,.92));backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border);border-radius:var(--r-lg);padding:18px;transition:border-color var(--ease),box-shadow var(--ease),transform var(--ease);display:flex;flex-direction:column;min-height:354px;box-shadow:inset 0 1px 0 rgba(255,255,255,.025)}
.tool-panel:focus-within{border-color:rgba(16,185,129,.35)!important;box-shadow:0 0 0 1px rgba(16,185,129,.08),0 18px 60px rgba(0,0,0,.26)}
.tool-header{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px;min-height:34px}
.tool-header h3{font-size:11px;font-weight:650;color:var(--text-2);text-transform:uppercase;letter-spacing:.08em}
.tool-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap;justify-content:flex-end}
.tool-link{min-height:30px;padding:5px 10px;border-radius:7px;font-size:12px;color:var(--accent-l);cursor:pointer;background:rgba(16,185,129,.06);border:1px solid rgba(16,185,129,.12);font-family:inherit;transition:background .15s,border-color .15s,color .15s,transform .15s;white-space:nowrap}
.tool-link:hover{color:#fff;background:rgba(16,185,129,.12);border-color:rgba(16,185,129,.24);transform:translateY(-1px)}
textarea{width:100%;height:240px;background:rgba(0,0,0,.18);color:rgba(255,255,255,.92);border:1px solid rgba(255,255,255,.045);border-radius:var(--r-sm);resize:none;outline:none;font-family:inherit;font-size:16px;line-height:1.7;padding:14px;transition:border-color .15s,background .15s;flex:1}
textarea:focus{background:rgba(0,0,0,.24);border-color:rgba(16,185,129,.24)}
@media(min-width:768px){textarea{height:288px}}
textarea::placeholder{color:#5f5f5f}
.tool-footer{display:flex;justify-content:space-between;align-items:center;gap:12px;padding-top:12px;border-top:1px solid var(--border);margin-top:12px;flex-wrap:wrap}
.tool-footer span{font-size:12px;color:var(--text-3)}
.tool-shortcut{font-size:11px;color:var(--text-4);border:1px solid var(--border);border-radius:5px;padding:3px 7px;background:rgba(255,255,255,.025)}
.output-area{width:100%;height:240px;overflow-y:auto;font-size:16px;line-height:1.75;color:rgba(255,255,255,.92);background:rgba(0,0,0,.18);border:1px solid rgba(255,255,255,.045);border-radius:var(--r-sm);padding:14px;flex:1;white-space:pre-wrap}
@media(min-width:768px){.output-area{height:288px}}
.output-placeholder{color:#5f5f5f;font-style:normal}
.loading-state{height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;text-align:center;color:var(--text-3)}
.loading-state p{color:var(--text-3);font-size:14px}
.algo-info{color:var(--text-3);cursor:help;font-size:11px;line-height:1;border-bottom:1px dashed var(--border-2)}
.algo-disclaimer{font-size:10px;color:var(--text-4);margin-top:6px;letter-spacing:.02em}
.spinner{width:32px;height:32px;border-radius:50%;border:2px solid #222;border-top-color:var(--accent);animation:spin 1s linear infinite}
.detection-bar{margin-top:12px;padding-top:12px;border-top:1px solid var(--border)}
.detection-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.detection-track{width:100%;height:4px;background:var(--border);border-radius:9999px;overflow:hidden}
.detection-fill{height:100%;background:var(--accent);border-radius:9999px;transition:width .3s;width:0}
.badge{font-size:10px;padding:2px 8px;border-radius:4px;font-weight:500}
.badge-demo{color:var(--amber);background:rgba(245,158,11,.1)}
.badge-ai{color:var(--accent);background:rgba(16,185,129,.1)}
.badge-red{color:var(--red);background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.15)}
.badge-green{color:var(--accent);background:rgba(16,185,129,.1);border:1px solid rgba(16,185,129,.15)}
.panel-title{font-size:14px;font-weight:600;color:rgba(255,255,255,.85);text-transform:none;letter-spacing:0}
.counts-pill{display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.04);border:1px solid var(--border);border-radius:9999px;padding:3px 10px}
.counts-pill span{font-size:11.5px;color:var(--text-3)}
.count-sep{color:var(--text-4)}
.humanize-btn-wrap{display:flex;flex-direction:column;align-items:center;gap:10px;margin-top:28px}
.humanize-btn-wrap .btn-accent{width:100%;max-width:360px;transition:all .2s,box-shadow .3s}
.humanize-btn-wrap .btn-accent:not(:disabled){box-shadow:0 0 20px rgba(16,185,129,.2)}
.humanize-btn-wrap .btn-accent:not(:disabled):hover{box-shadow:0 0 28px rgba(16,185,129,.3)}
/* ── Before/After ──────────────────────────────────────── */
.ba-card{position:relative;overflow:hidden}
.ba-bar{position:absolute;top:0;left:0;right:0;height:2px}
.ba-bar-red{background:linear-gradient(90deg,#ef4444,#f97316)}
.ba-bar-green{background:linear-gradient(90deg,#10b981,#06b6d4)}
.meter{display:flex;align-items:center;gap:8px;margin-top:16px}
.meter-track{flex:1;height:4px;background:var(--border);border-radius:9999px;overflow:hidden}
.meter-fill{height:100%;border-radius:9999px}
.meter-red{background:rgba(239,68,68,.7)}
.meter-green{background:rgba(16,185,129,.7)}
/* ── Features ──────────────────────────────────────────── */
.feature-card{transition:border-color var(--ease),transform var(--ease)}
.feature-card:hover{transform:translateY(-2px);border-color:var(--border-2)}
.feature-icon{width:36px;height:36px;border-radius:8px;background:rgba(16,185,129,.1);display:flex;align-items:center;justify-content:center;font-size:16px;margin-bottom:12px;flex-shrink:0}
.feature-card h3{font-size:15px;margin-bottom:6px}
.feature-card p{font-size:13px;color:var(--text-3);line-height:1.6}
/* ── Steps ─────────────────────────────────────────────── */
.step-circle{width:48px;height:48px;border-radius:50%;border:1px solid var(--border-2);background:var(--surface);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;color:var(--text-3);margin:0 auto 20px}
/* ── FAQ ───────────────────────────────────────────────── */
.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);overflow:hidden;transition:border-color var(--ease)}
.faq-item:hover{border-color:var(--border-2)}
.faq-btn{width:100%;display:flex;align-items:center;justify-content:space-between;padding:20px;background:none;border:none;cursor:pointer;font-family:inherit;text-align:left}
.faq-btn span:first-child{color:#fff;font-weight:500;font-size:15px;padding-right:16px}
.faq-btn span:last-child{color:var(--text-3);font-size:20px;transition:transform .25s;flex-shrink:0;line-height:1}
.faq-btn.open span:last-child{transform:rotate(45deg)}
.faq-body{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-body p{padding:0 20px 20px;color:#888;font-size:14px;line-height:1.7}
/* ── Pricing ───────────────────────────────────────────── */
.price-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:28px;transition:border-color var(--ease)}
.price-card.popular{border-color:rgba(16,185,129,.3);box-shadow:0 0 48px rgba(16,185,129,.07),inset 0 1px 0 rgba(16,185,129,.1);position:relative}
.price-popular-badge{position:absolute;top:-12px;left:50%;transform:translateX(-50%);background:var(--accent);color:#fff;font-size:11px;font-weight:600;padding:3px 14px;border-radius:9999px;white-space:nowrap}
.price-name{font-size:18px;font-weight:500;color:#fff;margin-bottom:4px}
.price-amount{font-size:2.25rem;font-weight:700;color:#fff}
.price-period{font-size:14px;color:var(--text-3);margin-left:4px}
.price-features{list-style:none;margin:24px 0}
.price-features li{display:flex;align-items:flex-start;gap:8px;font-size:14px;color:#999;padding:7px 0;border-bottom:1px solid var(--border)}
.price-features li:last-child{border-bottom:none}
.price-features li::before{content:'✓';color:var(--accent);font-size:12px;font-weight:700;flex-shrink:0;margin-top:2px}
/* ── Testimonials ──────────────────────────────────────── */
.testimonial-text{color:#999;font-size:14px;line-height:1.7;margin-bottom:16px;font-style:italic}
.testimonial-author{display:flex;align-items:center;gap:10px}
.avatar{width:32px;height:32px;border-radius:50%;background:rgba(16,185,129,.12);border:1px solid rgba(16,185,129,.2);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:600;color:var(--accent);flex-shrink:0}
/* ── CTA ───────────────────────────────────────────────── */
.cta-box{background:var(--surface);border:1px solid var(--border-2);border-radius:20px;padding:48px 32px;position:relative;overflow:hidden}
.cta-box::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 50% -20%,rgba(16,185,129,.09),transparent 65%);pointer-events:none}
@media(min-width:768px){.cta-box{padding:72px 56px}}
/* ── Footer ────────────────────────────────────────────── */
.footer{background:var(--bg-2);border-top:1px solid var(--border);padding:64px 0}
.footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
@media(min-width:768px){.footer-grid{grid-template-columns:1fr 1fr 1fr 1fr 1fr;gap:48px}}
.footer-brand{grid-column:span 2}
@media(min-width:768px){.footer-brand{grid-column:span 1}}
.footer-brand p{color:var(--text-3);font-size:14px;line-height:1.6;margin:16px 0}
.footer h4{color:#555;font-size:11px;font-weight:500;text-transform:uppercase;letter-spacing:.08em;margin-bottom:16px}
.footer ul{list-style:none}
.footer ul li{margin-bottom:10px}
.footer ul a{color:var(--text-4);font-size:14px;transition:color var(--ease)}
.footer ul a:hover{color:var(--text-2)}
.footer-bottom{margin-top:48px;padding-top:32px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:16px;align-items:center}
@media(min-width:768px){.footer-bottom{flex-direction:row;justify-content:space-between}}
/* ── Blog ──────────────────────────────────────────────── */
.blog-card{display:block;transition:border-color var(--ease),transform var(--ease)}
.blog-card:hover{border-color:var(--border-2);transform:translateY(-2px)}
.blog-card:hover h3{color:#ccc}
.blog-meta{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.blog-cat{font-size:11px;font-weight:500;color:var(--accent);background:rgba(16,185,129,.1);padding:2px 8px;border-radius:4px}
.blog-date{font-size:12px;color:var(--text-4)}
/* ── Legal ─────────────────────────────────────────────── */
.legal h2{font-size:18px;font-weight:600;color:#fff;margin-bottom:8px;margin-top:32px}
.legal h2:first-of-type{margin-top:0}
.legal p{color:#888;font-size:15px;line-height:1.7;margin-bottom:16px}
/* ── Form ──────────────────────────────────────────────── */
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:14px;color:#888;margin-bottom:8px;font-weight:500}
.form-input{width:100%;background:var(--surface);border:1px solid var(--border-2);border-radius:var(--r-sm);padding:12px 16px;color:#fff;font-family:inherit;font-size:14px;outline:none;transition:border-color var(--ease)}
.form-input:focus{border-color:#444}
.form-input::placeholder{color:var(--text-4)}
/* ── Animations ────────────────────────────────────────── */
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
@keyframes bounce{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(-8px)}}
@keyframes fadeUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}
.fade-up{animation:fadeUp .6s cubic-bezier(.16,1,.3,1) forwards}
.delay-1{animation-delay:.1s;opacity:0}
.delay-2{animation-delay:.2s;opacity:0}
.delay-3{animation-delay:.3s;opacity:0}
.delay-4{animation-delay:.4s;opacity:0}
/* ── Ad space ──────────────────────────────────────────── */
.ad-space{background:var(--bg-2);border:1px dashed var(--border-2);border-radius:8px;padding:20px;text-align:center;color:#2a2a2a;font-size:12px;margin:32px 0}
/* ── Tool Tabs ──────────────────────────────────────────── */
.tool-tabs-wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px;flex-wrap:wrap}
.tool-tabs{display:flex;background:rgba(255,255,255,.035);border:1px solid var(--border);border-radius:var(--r);padding:4px;gap:3px;flex-wrap:wrap;box-shadow:inset 0 1px 0 rgba(255,255,255,.025)}
.tool-tab{min-height:38px;padding:8px 16px;border-radius:calc(var(--r) - 2px);font-size:13.5px;font-weight:600;color:var(--text-2);background:transparent;border:none;cursor:pointer;font-family:inherit;transition:background .18s,color .18s,box-shadow .18s;display:flex;align-items:center;gap:7px;white-space:nowrap}
.tool-tab:hover{color:#fff;background:rgba(255,255,255,.06)}
.tool-tab.active{background:#fff;color:#0a0a0a;box-shadow:0 8px 22px rgba(0,0,0,.32)}
.tool-tab-icon{font-size:14px;line-height:1}
.tool-tab-aux{min-height:38px;display:flex;align-items:center;gap:6px;padding:8px 14px;border-radius:var(--r-sm);font-size:13px;font-weight:600;color:var(--text-2);background:rgba(255,255,255,.025);border:1px solid var(--border);cursor:pointer;font-family:inherit;transition:all .18s;white-space:nowrap}
.tool-tab-aux:hover{color:#fff;border-color:var(--border-2);background:rgba(255,255,255,.05)}
.history-count-badge{background:var(--accent);color:#000;border-radius:9999px;padding:1px 6px;font-size:11px;font-weight:700;line-height:1.4}
.tab-pane{display:none}
.tab-pane.active{display:block}
/* ── AI Detector Tab ────────────────────────────────────── */
.detector-panel{display:grid;gap:16px}
@media(min-width:1024px){.detector-panel{grid-template-columns:1fr 1fr}}
.detector-results{background:linear-gradient(180deg,rgba(18,18,18,.94),rgba(10,10,10,.92));backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border);border-radius:var(--r-lg);padding:18px;display:flex;flex-direction:column;gap:16px;box-shadow:inset 0 1px 0 rgba(255,255,255,.025)}
.detector-score-wrap{display:flex;align-items:center;gap:20px}
.detector-score-circle{width:88px;height:88px;border-radius:50%;border:3px solid var(--border-2);display:flex;flex-direction:column;align-items:center;justify-content:center;flex-shrink:0;transition:border-color .4s}
.detector-score-circle.score-low{border-color:var(--accent)}
.detector-score-circle.score-mid{border-color:var(--amber)}
.detector-score-circle.score-high{border-color:var(--red)}
.detector-score-num{font-size:1.75rem;font-weight:700;color:#fff;line-height:1}
.detector-score-label{font-size:9px;color:var(--text-3);text-transform:uppercase;letter-spacing:.06em;margin-top:4px;text-align:center}
.detector-verdict-wrap{flex:1}
.detector-verdict-text{font-size:15px;font-weight:600;display:block;margin-bottom:8px}
.verdict-low{color:var(--accent)}
.verdict-mid{color:var(--amber)}
.verdict-high{color:var(--red)}
.detector-reasons{display:flex;flex-direction:column;gap:6px}
.detector-reason{display:flex;align-items:flex-start;gap:8px;font-size:12px;color:var(--text-2);line-height:1.5}
.reason-dot{width:6px;height:6px;border-radius:50%;background:var(--border-2);flex-shrink:0;margin-top:5px}
.reason-flag .reason-dot{background:var(--red)}
.reason-pass .reason-dot{background:var(--accent)}
.reason-pass{color:var(--text-3)}
.detector-cta{flex-direction:column;align-items:flex-start;gap:8px;padding-top:12px;border-top:1px solid var(--border)}
/* ── Diff View ──────────────────────────────────────────── */
.view-toggle{display:flex;gap:2px;background:rgba(255,255,255,.04);border:1px solid var(--border);border-radius:var(--r-sm);padding:2px}
.view-toggle-btn{padding:4px 10px;font-size:11px;font-family:inherit;font-weight:500;background:none;border:none;border-radius:5px;color:var(--text-3);cursor:pointer;transition:all .15s}
.view-toggle-btn.active{background:rgba(255,255,255,.08);color:#fff}
.diff-area{width:100%;height:240px;overflow-y:auto;font-size:15px;line-height:1.8;color:rgba(255,255,255,.9);background:rgba(0,0,0,.18);border:1px solid rgba(255,255,255,.045);border-radius:var(--r-sm);padding:14px}
@media(min-width:768px){.diff-area{height:280px}}
.diff-summary{display:flex;gap:12px;padding-bottom:8px;margin-bottom:8px;border-bottom:1px solid var(--border);font-size:11px;flex-wrap:wrap}
.diff-stat{color:var(--text-3)}
.diff-stat-del{color:var(--red)}
.diff-stat-ins{color:var(--accent)}
.diff-content{line-height:1.9}
del.diff-del{color:#ef4444;text-decoration:line-through;background:rgba(239,68,68,.08);border-radius:3px;padding:0 2px;text-decoration-color:rgba(239,68,68,.6)}
ins.diff-ins{color:#10b981;text-decoration:none;background:rgba(16,185,129,.1);border-radius:3px;padding:0 2px;border-bottom:1px solid rgba(16,185,129,.3)}
/* ── History Drawer ─────────────────────────────────────── */
.history-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);z-index:100;opacity:0;pointer-events:none;transition:opacity .25s}
.history-overlay.open{opacity:1;pointer-events:all}
.history-drawer{position:fixed;top:0;right:0;bottom:0;width:min(400px,92vw);background:rgba(10,10,10,.97);border-left:1px solid var(--border);z-index:101;display:flex;flex-direction:column;transform:translateX(100%);transition:transform .3s cubic-bezier(.16,1,.3,1);overflow:hidden}
.history-drawer.open{transform:translateX(0)}
body.drawer-open{overflow:hidden}
.history-header{display:flex;align-items:center;justify-content:space-between;padding:20px;border-bottom:1px solid var(--border);flex-shrink:0}
.history-header h3{font-size:14px;font-weight:600;color:#fff;text-transform:none;letter-spacing:0}
.history-close-btn{background:none;border:none;color:var(--text-3);font-size:16px;cursor:pointer;padding:4px 8px;transition:color .15s;font-family:inherit}
.history-close-btn:hover{color:#fff}
.history-list{flex:1;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:8px}
.history-empty{flex:1;display:flex;align-items:center;justify-content:center;padding:40px 20px;text-align:center}
.history-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);padding:14px;transition:border-color .15s}
.history-item:hover{border-color:var(--border-2)}
.history-item-meta{display:flex;align-items:center;gap:8px;margin-bottom:8px;flex-wrap:wrap}
.history-timestamp{font-size:11px;color:var(--text-4)}
.history-tone-badge{font-size:10px;padding:2px 7px;border-radius:4px;background:rgba(16,185,129,.1);color:var(--accent)}
.history-level{font-size:10px;color:var(--text-4)}
.history-preview{font-size:12px;color:var(--text-2);line-height:1.6;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.history-item-actions{display:flex;gap:16px}
/* ── Linguistic Metrics Panel ───────────────────────────── */
.metrics-panel{background:rgba(255,255,255,.035);border:1px solid var(--border);border-radius:var(--r-sm);padding:14px 16px}
.metrics-section-label{font-size:10px;color:var(--text-3);text-transform:uppercase;letter-spacing:.07em;margin-bottom:10px;display:flex;align-items:center;gap:6px}
.metrics-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px 20px}
.metric-row{display:flex;flex-direction:column;gap:4px}
.metric-label-row{display:flex;justify-content:space-between;align-items:center}
.metric-label{font-size:11px;color:var(--text-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;cursor:default}
.metric-value{font-size:11px;font-weight:600;flex-shrink:0;margin-left:4px}
.metric-value.pass{color:var(--accent)}
.metric-value.fail{color:var(--red)}
.metric-value.warn{color:var(--amber)}
.metric-bar-wrap{position:relative;height:4px;background:var(--border);border-radius:9999px;overflow:visible}
.metric-bar-fill{height:100%;border-radius:9999px;transition:width .5s ease;max-width:100%}
.metric-bar-fill.pass{background:var(--accent)}
.metric-bar-fill.fail{background:var(--red)}
.metric-bar-fill.warn{background:var(--amber)}
.metric-threshold{position:absolute;top:-2px;width:2px;height:8px;background:rgba(255,255,255,.25);border-radius:1px;pointer-events:none}
/* ML source badge */
.ml-badge{font-size:9px;padding:1px 6px;border-radius:3px;background:rgba(16,185,129,.12);color:var(--accent);border:1px solid rgba(16,185,129,.2);font-weight:500;text-transform:none;letter-spacing:0}
/* Sentence-level highlights */
.sentence-highlights-wrap{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--r-sm);padding:14px 16px}
.sentence-highlights{font-size:13px;line-height:1.9;color:var(--text-2)}
.s-hl{border-radius:3px;padding:1px 2px;transition:background .2s}
.s-hl-high{background:rgba(239,68,68,.18);color:#fca5a5}
.s-hl-mid{background:rgba(245,158,11,.12);color:#fcd34d}
.s-hl-low{color:var(--text-2)}
.hl-legend{display:flex;gap:12px;margin-top:10px;padding-top:10px;border-top:1px solid var(--border)}
.hl-legend-item{display:flex;align-items:center;gap:5px;font-size:10px;color:var(--text-3)}
.hl-dot{width:8px;height:8px;border-radius:2px;flex-shrink:0}
/* Humanizer before/after metrics */
.humanizer-metrics{background:rgba(255,255,255,.035);border:1px solid var(--border);border-radius:var(--r-sm);padding:14px 16px;margin-bottom:10px}
.humanizer-metrics-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.iter-badge{font-size:10px;padding:2px 7px;border-radius:3px;background:rgba(16,185,129,.12);color:var(--accent);border:1px solid rgba(16,185,129,.2);font-weight:500}
.humanizer-metrics-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px 16px}
.hm-row{display:flex;flex-direction:column;gap:4px}
.hm-label{font-size:10px;color:var(--text-3)}
.hm-bars{display:flex;align-items:center;gap:6px}
.hm-bar-wrap{flex:1;position:relative;height:4px;background:var(--border);border-radius:9999px;overflow:hidden}
.hm-bar-fill{height:100%;border-radius:9999px;transition:width .6s ease}
.hm-bar-before{background:var(--red)}
.hm-bar-after{background:var(--accent)}
.hm-vals{display:flex;justify-content:space-between;font-size:10px}
.hm-val-before{color:var(--text-4)}
.hm-val-after{color:var(--accent);font-weight:600}
.hm-arrow{font-size:9px;color:var(--text-4);flex-shrink:0}
/* ── Plagiarism Checker Tab ─────────────────────────────── */
.plagiarism-scores{display:grid;grid-template-columns:1fr 1fr;gap:16px;justify-items:center;padding:4px 0}
.plag-progress-fill{height:100%;border-radius:9999px;background:var(--accent);transition:width .4s ease;width:0}
.source-card{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--r-sm);padding:10px 12px;margin-bottom:8px;transition:border-color var(--ease)}
.source-card:last-child{margin-bottom:0}
.source-card:hover{border-color:var(--border-2)}
.source-match-bar-track{width:100%;height:3px;background:var(--border);border-radius:9999px;overflow:hidden}
.source-match-bar{height:100%;border-radius:9999px;transition:width .5s ease}
@media(max-width:767px){
.tool-tabs-wrap{align-items:stretch}
.tool-tabs,.tool-tab-aux{width:100%}
.tool-tabs{display:grid;grid-template-columns:1fr}
.tool-tab{justify-content:center;width:100%}
.tool-tab-aux{justify-content:center}
.tool-controls{padding:10px;gap:10px}
.controls-group{width:100%}
.controls-divider{display:none}
.pill-group{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
.pill{width:100%;padding-left:8px;padding-right:8px}
.tool-panel,.detector-results{padding:14px;border-radius:var(--r)}
.tool-header{align-items:flex-start;flex-direction:column}
.tool-header>div{width:100%;justify-content:space-between;flex-wrap:wrap}
.tool-actions,.view-toggle{width:100%}
.view-toggle{display:grid;grid-template-columns:1fr 1fr}
.view-toggle-btn{min-height:32px}
textarea,.output-area,.diff-area{height:260px;font-size:16px}
.humanize-btn-wrap{align-items:stretch}
.humanize-btn-wrap .btn{width:100%}
.metrics-grid,.humanizer-metrics-grid{grid-template-columns:1fr}
.detector-score-wrap{align-items:flex-start}
.detector-score-circle{width:76px;height:76px}
.detector-score-num{font-size:1.45rem}
.hl-legend{flex-direction:column;gap:6px}
.plagiarism-scores{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
*,*::before,*::after{animation-duration:1ms!important;animation-iteration-count:1!important;scroll-behavior:auto!important;transition-duration:1ms!important}
}
/* ── Stats Bar ──────────────────────────────────────────── */
.stats-bar{border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:rgba(255,255,255,.015);padding:28px 20px}
@media(min-width:768px){.stats-bar{padding:28px 64px}}
.stats-bar-inner{max-width:960px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--border);border:1px solid var(--border);border-radius:var(--r)}
@media(min-width:640px){.stats-bar-inner{grid-template-columns:repeat(4,1fr)}}
.stats-bar-item{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px 16px;gap:4px;background:var(--bg);text-align:center}
.stats-bar-item:first-child{border-radius:var(--r) 0 0 0}
.stats-bar-item:nth-child(2){border-radius:0 var(--r) 0 0}
.stats-bar-item:nth-child(3){border-radius:0 0 0 var(--r)}
.stats-bar-item:last-child{border-radius:0 0 var(--r) 0}
@media(min-width:640px){
.stats-bar-item:first-child{border-radius:var(--r) 0 0 var(--r)}
.stats-bar-item:nth-child(2){border-radius:0}
.stats-bar-item:nth-child(3){border-radius:0}
.stats-bar-item:last-child{border-radius:0 var(--r) var(--r) 0}
}
.stats-bar-num{font-size:1.5rem;font-weight:700;color:#fff;line-height:1}
@media(min-width:768px){.stats-bar-num{font-size:1.75rem}}
.stats-bar-lbl{font-size:11px;color:var(--text-3);white-space:nowrap}
.stats-bar-div{display:none}
/* ── Featured On ────────────────────────────────────────── */
.featured-on-section{padding:40px 0;border-top:1px solid var(--border)}
.featured-on-label{font-size:11px;font-weight:500;color:var(--text-4);text-transform:uppercase;letter-spacing:.1em;margin-bottom:20px}
.featured-on-logos{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:12px}
.featured-on-badge{display:inline-flex;align-items:center;padding:8px 18px;border-radius:9999px;border:1px solid var(--border-2);background:rgba(255,255,255,.03);color:var(--text-3);font-size:13px;font-weight:500;text-decoration:none;transition:border-color var(--ease),color var(--ease),background var(--ease)}
.featured-on-badge:hover{border-color:#555;color:var(--text);background:rgba(255,255,255,.06)}
/* ── Detector Table Footer ──────────────────────────────── */
.dt-footer{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding:14px 20px;border-top:1px solid var(--border);background:rgba(255,255,255,.015)}
.dt-detector-link{font-size:13px;color:var(--accent);text-decoration:none;white-space:nowrap;transition:color var(--ease)}
.dt-detector-link:hover{color:var(--accent-l)}
/* ── Detector Pass/Fail Table ───────────────────────────── */
.detector-table-wrap{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden}
.detector-table{width:100%;border-collapse:collapse;font-size:14px}
.detector-table thead{background:rgba(255,255,255,.03);border-bottom:1px solid var(--border)}
.detector-table thead th{padding:14px 20px;text-align:left;font-size:11px;font-weight:600;color:var(--text-3);text-transform:uppercase;letter-spacing:.08em}
.detector-table tbody tr{border-bottom:1px solid var(--border);transition:background var(--ease)}
.detector-table tbody tr:last-child{border-bottom:none}
.detector-table tbody tr:hover{background:rgba(255,255,255,.02)}
.detector-table tbody td{padding:16px 20px;vertical-align:middle}
.detector-name{font-weight:600;color:#fff;font-size:15px}
.dt-before{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--red);background:rgba(239,68,68,.08);border:1px solid rgba(239,68,68,.15);padding:4px 10px;border-radius:6px}
.dt-before::before{content:'✗';font-weight:700}
.dt-after{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--accent);background:rgba(16,185,129,.08);border:1px solid rgba(16,185,129,.15);padding:4px 10px;border-radius:6px}
.dt-after::before{content:'✓';font-weight:700}
.dt-pass{display:inline-flex;align-items:center;gap:5px;font-size:14px;font-weight:700;color:var(--accent)}
.dt-disclaimer{font-size:12px;color:var(--text-4);padding:14px 20px;border-top:1px solid var(--border);background:rgba(255,255,255,.015)}
@media(max-width:767px){
.detector-table thead th:nth-child(2){display:none}
.detector-table tbody td:nth-child(2){display:none}
.detector-table thead th,
.detector-table tbody td{padding:12px 14px}
.detector-name{font-size:13px}
}
/* ── Testimonial Stars ──────────────────────────────────── */
.testimonial-stars{color:#f59e0b;font-size:13px;margin-bottom:10px;letter-spacing:1px}