/* MergeConverter — cloud hand history converter */
:root{
  --bg:#0a101d;
  --bg-2:#0e1626;
  --surface:#131d31;
  --surface-2:#18243c;
  --line:#24324f;
  --text:#e7ecf6;
  --muted:#9ba8c2;
  --accent:#19c37d;
  --accent-2:#12a368;
  --accent-ink:#04150d;
  --gold:#f2b94b;
  --red:#ff6b6b;
  --radius:14px;
  --radius-sm:9px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --wrap:1160px;
  --font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 var(--font);overflow-x:hidden}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.2;margin:0 0 .6em;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.6vw,3.3rem)}
h2{font-size:clamp(1.55rem,3vw,2.2rem)}
h3{font-size:1.2rem}
p{margin:0 0 1em}
ul,ol{padding-left:1.25em;margin:0 0 1em}
li{margin-bottom:.35em}
code,pre,kbd{font-family:var(--mono);font-size:.9em}
code{background:var(--surface-2);border:1px solid var(--line);border-radius:6px;padding:.1em .4em}
pre{background:#070c16;border:1px solid var(--line);border-radius:var(--radius-sm);padding:16px;overflow:auto;line-height:1.5;margin:0 0 1.2em}
pre code{background:none;border:0;padding:0}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:var(--accent-ink);padding:8px 14px;z-index:100}
.skip:focus{left:10px;top:10px}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(10,16,29,.88);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;height:66px}
.logo{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:800;font-size:1.15rem;letter-spacing:-.02em}
.logo:hover{text-decoration:none}
.logo svg{width:32px;height:32px}
.logo b{color:var(--accent)}
.menu{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.menu li{margin:0}
.menu a{display:block;color:var(--muted);padding:8px 12px;border-radius:8px;font-weight:500;font-size:.95rem}
.menu a:hover,.menu a[aria-current="page"]{color:var(--text);background:var(--surface);text-decoration:none}
.menu .btn{margin-left:8px;color:var(--accent-ink)}
.menu .btn:hover{background:var(--accent-2);color:var(--accent-ink)}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:9px;width:44px;height:44px;color:var(--text);cursor:pointer;align-items:center;justify-content:center}
.burger svg{width:22px;height:22px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--accent);color:var(--accent-ink);font-weight:700;padding:12px 20px;border-radius:10px;border:1px solid transparent;cursor:pointer;font-size:1rem;line-height:1.2;text-align:center;transition:background .15s,transform .15s}
.btn:hover{background:var(--accent-2);text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{background:var(--surface);color:var(--text)}
.btn-sm{padding:8px 14px;font-size:.9rem}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}

/* Hero */
.hero{position:relative;padding:72px 0 64px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:-30% -10% auto auto;width:720px;height:720px;background:radial-gradient(closest-side,rgba(25,195,125,.18),transparent 70%);pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;position:relative}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.82rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--gold);margin-bottom:14px}
.lead{font-size:1.15rem;color:var(--muted);max-width:620px}
.hero .btn-row{margin:26px 0 18px}
.ticks{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:8px 20px;color:var(--muted);font-size:.93rem}
.ticks li::before{content:"✓";color:var(--accent);font-weight:800;margin-right:7px}

/* Mock window */
.mock{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.mock-bar{display:flex;align-items:center;gap:6px;padding:10px 14px;border-bottom:1px solid var(--line);background:var(--bg-2)}
.mock-bar i{width:10px;height:10px;border-radius:50%;background:#2c3a59}
.mock-bar span{margin-left:8px;font-size:.8rem;color:var(--muted)}
.mock-body{padding:18px}
.drop-demo{border:2px dashed #2f4266;border-radius:12px;padding:22px;text-align:center;color:var(--muted);font-size:.92rem}
.drop-demo strong{display:block;color:var(--text);font-size:1rem;margin-bottom:4px}
.file-row{display:flex;align-items:center;justify-content:space-between;gap:10px;background:var(--bg-2);border:1px solid var(--line);border-radius:10px;padding:10px 12px;margin-top:10px;font-size:.88rem}
.file-row em{font-style:normal;color:var(--muted)}
.pill{display:inline-block;font-size:.75rem;font-weight:700;padding:3px 9px;border-radius:999px;background:rgba(25,195,125,.14);color:var(--accent);white-space:nowrap}
.pill.gold{background:rgba(242,185,75,.14);color:var(--gold)}
.arrow-down{display:flex;justify-content:center;color:var(--muted);margin:10px 0 0}

/* Sections */
.section{padding:72px 0}
.section.alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin:0 0 36px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head p{color:var(--muted);font-size:1.05rem}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px;min-width:0}
.card h3{margin-bottom:.4em}
.card p:last-child,.card ul:last-child{margin-bottom:0}
.card p{color:var(--muted)}
.icon{width:44px;height:44px;border-radius:11px;display:grid;place-items:center;background:rgba(25,195,125,.12);color:var(--accent);margin-bottom:14px}
.icon svg{width:24px;height:24px}
.app-card{display:flex;flex-direction:column;gap:6px}
.app-badge{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;font-weight:800;font-size:1.05rem;color:#fff;margin-bottom:8px}
.steps{counter-reset:step;list-style:none;padding:0;margin:0}
.steps>li{counter-increment:step;position:relative;padding-left:58px;margin-bottom:26px}
.steps>li::before{content:counter(step);position:absolute;left:0;top:0;width:40px;height:40px;border-radius:50%;background:var(--surface-2);border:1px solid var(--line);display:grid;place-items:center;font-weight:800;color:var(--accent)}
.steps h3{margin-bottom:.25em}
.steps p{color:var(--muted);margin:0}

/* Tables */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;font-size:.95rem;min-width:560px}
th,td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--surface-2);font-weight:700;white-space:nowrap}
tr:last-child td{border-bottom:0}
td .yes{color:var(--accent);font-weight:700}
td .no{color:var(--muted)}

/* Pricing */
.price-card{display:flex;flex-direction:column}
.price-card.featured{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent) inset}
.price{font-size:2.4rem;font-weight:800;margin:6px 0 2px}
.price small{font-size:1rem;color:var(--muted);font-weight:500}
.price-card ul{list-style:none;padding:0;margin:18px 0 24px;flex:1}
.price-card li{padding-left:24px;position:relative;color:var(--muted)}
.price-card li::before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:800}

/* FAQ */
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:10px}
.faq summary{cursor:pointer;padding:16px 48px 16px 18px;font-weight:600;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:18px;top:12px;font-size:1.4rem;color:var(--accent);line-height:1.2}
.faq details[open] summary::after{content:"–"}
.faq details>div{padding:0 18px 16px;color:var(--muted)}
.faq details>div p:last-child{margin:0}

/* CTA band */
.cta{background:linear-gradient(135deg,#123a2b,#0f2440);border:1px solid var(--line);border-radius:20px;padding:44px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.cta h2{margin:0 0 .3em}
.cta p{margin:0;color:#c3cde0}

/* Page head / breadcrumbs */
.page-head{padding:48px 0 32px;border-bottom:1px solid var(--line);background:var(--bg-2)}
.page-head .lead{margin:0}
.crumbs{list-style:none;padding:0;margin:0 0 14px;display:flex;flex-wrap:wrap;gap:6px;font-size:.88rem;color:var(--muted)}
.crumbs li{margin:0}
.crumbs li+li::before{content:"/";margin-right:6px;color:#4b5a7a}
.crumbs a{color:var(--muted)}

/* Prose */
.prose{max-width:780px;min-width:0}
.prose h2{margin-top:1.6em}
.prose h3{margin-top:1.4em}
.prose p,.prose li{color:#cdd5e6}
.prose .note{background:var(--surface);border-left:3px solid var(--gold);padding:14px 18px;border-radius:0 10px 10px 0;margin:0 0 1.2em;color:var(--muted)}
.layout-side{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start}
.side{position:sticky;top:90px}
.side .card+.card{margin-top:16px}
.side ul{list-style:none;padding:0;margin:0}
.side li a{color:var(--muted)}
.side li a:hover{color:var(--text)}

/* Converter tool */
.tool{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:20px}
.dropzone{border:2px dashed #34496f;border-radius:var(--radius);padding:34px 20px;text-align:center;background:var(--bg-2);cursor:pointer;transition:border-color .15s,background .15s}
.dropzone:hover,.dropzone.over{border-color:var(--accent);background:#0f1c2c}
.dropzone svg{width:44px;height:44px;margin:0 auto 10px;color:var(--accent)}
.dropzone strong{display:block;font-size:1.1rem;margin-bottom:4px}
.dropzone span{color:var(--muted);font-size:.92rem}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.field label{font-weight:600;font-size:.92rem}
.field select,.field input,.field textarea{width:100%;background:var(--bg-2);color:var(--text);border:1px solid var(--line);border-radius:9px;padding:11px 12px;font:inherit}
.field textarea{min-height:140px;resize:vertical;font-family:var(--mono);font-size:.85rem}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.status{margin-top:14px;font-size:.92rem;color:var(--muted)}
.status .ok{color:var(--accent);font-weight:700}
.status .err{color:var(--red);font-weight:700}
.log{list-style:none;padding:0;margin:10px 0 0;max-height:180px;overflow:auto;font-size:.85rem}
.log li{padding:6px 0;border-bottom:1px solid var(--line);color:var(--muted);overflow-wrap:anywhere}
.output{min-height:320px;max-height:560px;white-space:pre;font-size:.8rem}
.stat-row{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 12px}
.stat{background:var(--bg-2);border:1px solid var(--line);border-radius:10px;padding:8px 14px;font-size:.85rem;color:var(--muted)}
.stat b{color:var(--text);font-size:1.05rem;margin-right:4px}
.sync-state{display:inline-flex;align-items:center;gap:8px;font-size:.9rem;color:var(--muted)}
.dot{width:9px;height:9px;border-radius:50%;background:#4b5a7a}
.dot.on{background:var(--accent);box-shadow:0 0 0 4px rgba(25,195,125,.18)}

/* Footer */
.site-footer{border-top:1px solid var(--line);padding:48px 0 28px;margin-top:0;background:var(--bg-2);font-size:.93rem}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:28px}
.site-footer h4{font-size:.95rem;margin-bottom:12px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li a{color:var(--muted)}
.site-footer li a:hover{color:var(--text)}
.site-footer p{color:var(--muted)}
.foot-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;border-top:1px solid var(--line);margin-top:32px;padding-top:20px;color:var(--muted);font-size:.85rem}

.muted{color:var(--muted)}
.center{text-align:center}
.mt{margin-top:28px}
.hide{display:none!important}

/* Responsive */
@media (max-width:1020px){
  .g4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .layout-side{grid-template-columns:minmax(0,1fr)}
  .side{position:static}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:36px}
  .g3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tool{grid-template-columns:minmax(0,1fr)}
  .burger{display:inline-flex}
  .menu{position:absolute;top:66px;left:0;right:0;flex-direction:column;align-items:stretch;gap:2px;background:var(--bg);border-bottom:1px solid var(--line);padding:10px 16px 16px;display:none}
  .menu.open{display:flex}
  .menu a{padding:12px 14px;font-size:1rem}
  .menu .btn{margin:8px 0 0}
}
@media (max-width:640px){
  body{font-size:15.5px}
  .wrap{padding:0 16px}
  .hero{padding:44px 0 40px}
  .section{padding:52px 0}
  .g2,.g3,.g4,.form-grid{grid-template-columns:minmax(0,1fr)}
  .cta{padding:28px 22px}
  .card{padding:20px}
  .btn-row .btn{flex:1 1 100%}
  .foot-grid{grid-template-columns:1fr}
  .page-head{padding:34px 0 24px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}