/* SplitSheet — refined, paper-inspired SaaS aesthetic */
:root{
  --ink:#16140f; --ink-soft:#5c574d; --paper:#f7f3ea; --paper-2:#efe9da;
  --line:#e2dac9; --brand:#e0453b; --brand-2:#ff6a4d; --brand-dark:#b32f26;
  --accent:#1c6b4f; --shadow:0 1px 0 rgba(0,0,0,.04),0 12px 32px -12px rgba(22,20,15,.18);
  --radius:16px;
  --f-display:"Instrument Serif",Georgia,serif;
  --f-body:"Space Grotesk",system-ui,sans-serif;
  --f-mono:"JetBrains Mono",monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--f-body);background:var(--paper);color:var(--ink);line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:inherit}

/* ---------- Ads ---------- */
.ad{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  background:repeating-linear-gradient(135deg,#fff7e8,#fff7e8 10px,#fff2dc 10px,#fff2dc 20px);
  border:1.5px dashed #e0b341;border-radius:10px;color:#9a7322;font-size:13px;text-align:center;overflow:hidden}
.ad__tag{font-family:var(--f-mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;opacity:.7}
.ad__content{font-weight:500;padding:0 8px}
.ad--leaderboard{width:728px;max-width:100%;height:90px;margin:10px auto 0}
.ad--rectangle{width:300px;height:250px;margin-bottom:18px}
.ad--native{min-height:110px;margin-top:20px;padding:14px}

/* ---------- Nav ---------- */
.nav{display:flex;align-items:center;gap:24px;padding:18px 32px;max-width:1200px;margin:0 auto}
.nav__logo{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;font-size:20px}
.nav__logo-mark{width:26px;height:26px;border-radius:7px;background:var(--brand);position:relative;
  box-shadow:inset 0 -8px 0 rgba(255,255,255,.25)}
.nav__logo-mark::after{content:"";position:absolute;left:50%;top:8px;bottom:8px;width:2px;background:rgba(255,255,255,.8);transform:translateX(-50%)}
.nav__logo em{font-family:var(--f-display);font-style:italic;font-weight:400;color:var(--brand)}
.nav__links{display:flex;gap:26px;margin-left:auto}
.nav__links a{text-decoration:none;color:var(--ink-soft);font-size:15px;font-weight:500}
.nav__links a:hover{color:var(--ink)}

/* ---------- Buttons ---------- */
.btn{font-family:var(--f-body);font-weight:600;font-size:15px;border:none;cursor:pointer;border-radius:999px;
  padding:11px 22px;transition:transform .12s ease,background .2s ease,box-shadow .2s ease;text-decoration:none;display:inline-flex;align-items:center;gap:8px}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 4px 0 var(--brand-dark)}
.btn--primary:hover{background:var(--brand-2);transform:translateY(-1px)}
.btn--primary:active{transform:translateY(2px);box-shadow:0 1px 0 var(--brand-dark)}
.btn--ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line)}
.btn--ghost:hover{border-color:var(--ink)}
.btn--light{background:#fff;color:var(--ink)}
.btn--light:hover{background:var(--paper-2)}
.btn--lg{padding:15px 30px;font-size:17px}
.btn--block{width:100%;justify-content:center;margin-top:24px}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.hero__bg{position:absolute;inset:0;z-index:0;opacity:.5;
  background:radial-gradient(ellipse at 80% 20%,rgba(224,69,59,.08),transparent 55%)}
.hero__bg-sheet{position:absolute;right:-60px;top:40px;width:320px;height:440px;background:var(--paper-2);
  border:1px solid var(--line);border-radius:6px;transform:rotate(6deg);box-shadow:var(--shadow)}
.hero__bg-sheet::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(transparent,transparent 38px,var(--line) 38px,var(--line) 39px);border-radius:6px;opacity:.6}
.hero__inner{position:relative;z-index:1;max-width:760px;padding:70px 32px 80px;margin:0 auto}
.hero__eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-soft);margin-bottom:22px;font-weight:500}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(28,107,79,.15)}
.hero__title{font-family:var(--f-display);font-weight:400;font-size:clamp(40px,6vw,72px);line-height:1.02;letter-spacing:-.02em;margin-bottom:22px}
.hero__title em{font-style:italic;color:var(--brand)}
.hero__sub{font-size:19px;color:var(--ink-soft);max-width:560px;margin-bottom:32px}
.hero__cta{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.hero__meta{font-size:13px;color:var(--ink-soft)}

/* ---------- Tool ---------- */
.tool{max-width:1200px;margin:0 auto;padding:64px 32px}
.tool__grid{display:grid;grid-template-columns:1fr 300px;gap:40px}
.tool__main{min-width:0}

/* Tool switcher */
.tools-switch{display:flex;gap:0;background:#fff;border:1px solid var(--line);border-radius:14px;padding:5px;margin-bottom:28px;width:fit-content;max-width:100%;box-shadow:var(--shadow)}
.tools-switch__btn{display:flex;align-items:center;gap:8px;background:transparent;border:none;cursor:pointer;font-family:var(--f-body);font-size:15px;font-weight:600;color:var(--ink-soft);padding:12px 22px;border-radius:10px;transition:all .18s;position:relative}
.tools-switch__btn--active{background:var(--brand);color:#fff}
.tools-switch__btn small{font-weight:400;font-size:11px;opacity:.75}
.badge-new{position:absolute;top:-2px;right:8px;background:var(--accent);color:#fff;font-family:var(--f-mono);font-size:9px;font-weight:600;padding:2px 6px;border-radius:4px;letter-spacing:.05em}
.tools-switch__btn--active .badge-new{background:rgba(255,255,255,.3)}

/* Callout */
.callout{background:#fff8f1;border:1px solid #f0d9b5;border-left:4px solid #e0a040;border-radius:12px;padding:18px 22px;margin-bottom:24px}
.callout strong{font-size:17px;display:block;margin-bottom:6px}
.callout p{font-size:14px;color:var(--ink-soft);line-height:1.55}

/* Check report */
.checkreport{margin-bottom:22px}
.checkreport__title{font-size:15px;margin-bottom:14px}
.checkreport ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.checkreport li{display:flex;align-items:center;gap:12px;font-size:14px;padding:10px 14px;border-radius:8px}
.checkreport li.ok{background:#f0faf4;color:#1c5e3f}
.checkreport li.fail{background:#fdf0ef;color:#a32622}
.checkreport__icon{font-size:18px;font-weight:700;width:24px;text-align:center;flex-shrink:0}
.checkreport__summary{margin-top:14px;padding-top:14px;border-top:1px solid var(--line);font-size:14px;font-weight:600}

/* Toggles */
.toggle{display:flex;align-items:center;gap:12px;font-size:14px;cursor:pointer;padding:10px 14px;border-radius:8px;background:var(--paper-2);transition:background .15s}
.toggle:hover{background:#e6dfce}
.toggle input{width:18px;height:18px;accent-color:var(--brand);cursor:pointer}

.stage{display:none;animation:fade .35s ease}
.stage--active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.stage__title{font-family:var(--f-display);font-size:30px;font-weight:400;margin-bottom:20px}

/* Dropzone */
.dropzone{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;text-align:center;
  padding:54px 30px;border:2px dashed var(--line);border-radius:var(--radius);background:#fff;cursor:pointer;
  transition:border-color .2s,background .2s,transform .2s}
.dropzone:hover,.dropzone.drag{border-color:var(--brand);background:#fff8f7;transform:translateY(-2px)}
.dropzone__visual{color:var(--brand);margin-bottom:6px}
.dropzone__title{font-size:17px;font-weight:600}
.dropzone__title u{text-decoration-color:var(--brand)}
.dropzone__hint{font-size:13px;color:var(--ink-soft)}

/* Card */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow)}
.filecard{display:flex;align-items:center;gap:16px;margin-bottom:22px}
.filecard__icon{width:44px;height:44px;border-radius:10px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:22px;flex-shrink:0}
.filecard__name{font-weight:600}
.filecard__meta{font-size:13px;color:var(--ink-soft)}

/* Options */
.options{display:flex;flex-direction:column;gap:20px}
.option-group{display:flex;flex-direction:column;gap:10px}
.option-label{font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-soft)}
.seg{display:flex;gap:0;background:var(--paper-2);border-radius:10px;padding:4px;flex-wrap:wrap}
.seg__btn{flex:1;min-width:0;background:transparent;border:none;cursor:pointer;font-family:var(--f-body);font-size:14px;font-weight:600;
  color:var(--ink-soft);padding:10px 12px;border-radius:7px;transition:all .18s;display:flex;flex-direction:column;gap:2px;align-items:center}
.seg__btn small{font-weight:400;font-size:11px;opacity:.75}
.seg__btn--active{background:#fff;color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.08)}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{font-size:14px;font-weight:600;padding:9px 16px;border-radius:999px;border:1.5px solid var(--line);background:#fff;cursor:pointer;transition:all .18s}
.chip small{display:block;font-weight:400;font-size:11px;color:var(--ink-soft);margin-top:1px}
.chip--active{border-color:var(--brand);background:var(--brand);color:#fff}
.chip--active small{color:rgba(255,255,255,.85)}

/* Result */
.resultcard{display:flex;align-items:center;gap:18px}
.resultcard__icon{font-size:34px}
.resultcard__body{flex:1}
.resultcard__body h3{font-size:18px;margin-bottom:2px}
.muted{color:var(--ink-soft);font-size:13px}

.error-msg{color:var(--brand-dark);background:#fdeceb;padding:12px 16px;border-radius:10px;margin-top:16px;font-size:14px;font-weight:500}

/* Sidebar */
.tool__side{position:sticky;top:20px;align-self:start}
.trust{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.trust h4{font-size:15px;margin-bottom:12px}
.trust ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.trust li{font-size:14px;color:var(--ink-soft);padding-left:22px;position:relative}
.trust li::before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:700}
.trust li b{color:var(--ink)}

/* ---------- How ---------- */
.how{max-width:1000px;margin:0 auto;padding:60px 32px;text-align:center}
.section-title{font-family:var(--f-display);font-size:38px;font-weight:400;margin-bottom:36px}
.how__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.how__card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;text-align:left}
.how__num{font-family:var(--f-mono);font-size:13px;color:var(--brand);font-weight:600}
.how__card h3{font-size:20px;margin:8px 0 6px}
.how__card p{color:var(--ink-soft);font-size:15px}

/* ---------- Pro ---------- */
.pro{padding:48px 32px}
.pro__inner{max-width:1100px;margin:0 auto;background:var(--ink);color:#fff;border-radius:24px;padding:48px;
  display:flex;align-items:center;gap:40px;justify-content:space-between;flex-wrap:wrap;
  background-image:radial-gradient(circle at 90% 10%,rgba(224,69,59,.35),transparent 50%)}
.pro__eyebrow{font-family:var(--f-mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--brand-2)}
.pro__text h2{font-family:var(--f-display);font-size:40px;font-weight:400;margin:10px 0 12px;max-width:520px;line-height:1.05}
.pro__desc{color:rgba(255,255,255,.7);max-width:480px;margin-bottom:20px}
.pro__price{text-align:right}
.pro__amount{font-family:var(--f-display);font-size:64px;line-height:1}
.pro__amount small{font-size:20px}
.pro__period{display:block;color:rgba(255,255,255,.6);font-size:14px;margin-top:4px}

/* ---------- Footer ---------- */
.footer{max-width:1200px;margin:0 auto;padding:32px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  color:var(--ink-soft);font-size:14px;border-top:1px solid var(--line)}
.footer__links{display:flex;gap:18px}
.footer__links a{text-decoration:none}
.footer__links a:hover{text-decoration:underline}

@media(max-width:860px){
  .tool__grid{grid-template-columns:1fr}
  .tool__side{position:static}
  .how__grid{grid-template-columns:1fr}
  .nav__links{display:none}
}