/* Toolbeam — design system */
:root{
  --bg:#0d1117; --bg-2:#141b25; --card:#161e2a; --card-h:#1c2738;
  --line:#243044; --txt:#e6edf6; --muted:#8a99ad; --brand:#5b8cff; --brand-2:#9d7bff;
  --ok:#3fb950; --radius:14px; --maxw:1120px;
  --shadow:0 8px 30px rgba(0,0,0,.35);
}
[data-theme="light"]{
  --bg:#f6f8fc; --bg-2:#eef2f9; --card:#fff; --card-h:#f3f6fd;
  --line:#e2e8f3; --txt:#16202e; --muted:#5e6b80; --brand:#3366ff; --brand-2:#7c4dff;
  --shadow:0 8px 30px rgba(40,60,100,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--txt);
  font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Inter,sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 85%,transparent);
  backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:19px}
.brand-mark{color:var(--brand);font-size:18px}
.brand-name{letter-spacing:-.3px}
.main-nav{display:flex;gap:22px;margin-left:8px}
.main-nav a{color:var(--muted);font-weight:500;font-size:15px}
.main-nav a:hover{color:var(--txt)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.theme-toggle{background:none;border:1px solid var(--line);color:var(--txt);width:36px;height:36px;
  border-radius:9px;cursor:pointer;font-size:15px}
.theme-toggle:hover{background:var(--card-h)}
.lang-switch{display:flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.lang-switch a{padding:6px 10px;font-size:12px;font-weight:700;color:var(--muted);cursor:pointer;line-height:1}
.lang-switch a:hover{background:var(--card-h)}
.lang-switch a.active{background:var(--brand);color:#fff}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:9px 16px;
  border-radius:10px;font-weight:600;font-size:14px;cursor:pointer;border:1px solid transparent;transition:.15s}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--txt)}
.btn-ghost:hover{background:var(--card-h)}
.btn-lg{padding:13px 24px;font-size:16px}
.btn-block{width:100%}

/* hero */
.hero{padding:90px 0 70px;background:radial-gradient(900px 400px at 70% -10%,color-mix(in srgb,var(--brand) 18%,transparent),transparent)}
.hero-inner{text-align:center;max-width:760px;margin:0 auto}
.hero-badge{display:inline-block;padding:6px 14px;border:1px solid var(--line);border-radius:999px;
  color:var(--muted);font-size:13px;margin-bottom:22px;background:var(--card)}
.hero h1{font-size:clamp(36px,6vw,60px);line-height:1.05;margin:0 0 18px;letter-spacing:-1.5px;font-weight:800}
.grad{background:linear-gradient(120deg,var(--brand),var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:18px;color:var(--muted);margin:0 auto 30px;max-width:600px}
.hero-cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.hero-stats{display:flex;gap:40px;justify-content:center;margin-top:46px}
.hero-stats div{display:flex;flex-direction:column}
.hero-stats strong{font-size:26px;font-weight:800}
.hero-stats span{color:var(--muted);font-size:13px}

/* tools */
.tools-section{padding:40px 0 20px}
.section-title{font-size:30px;font-weight:800;letter-spacing:-.6px;margin:0 0 6px}
.section-lead{color:var(--muted);margin:0 0 30px}
.cat{margin-bottom:34px}
.cat-title{font-size:16px;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.5px;margin:0 0 14px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.tool-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;
  display:flex;flex-direction:column;gap:3px;transition:.15s;position:relative;overflow:hidden}
.tool-card:hover{background:var(--card-h);transform:translateY(-2px);border-color:color-mix(in srgb,var(--brand) 40%,var(--line));box-shadow:var(--shadow)}
.tool-card .ic{font-size:24px;margin-bottom:8px}
.tool-card b{font-size:15px}
.tool-card small{color:var(--muted);font-size:13px}

/* band / pricing */
.band{margin:40px 0;background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.band-inner{display:flex;gap:40px;align-items:center;justify-content:space-between;padding:46px 0;flex-wrap:wrap}
.band h2{font-size:26px;margin:0 0 8px}
.band p{color:var(--muted);max-width:440px;margin:0}
.plan{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px;min-width:240px}
.plan-name{color:var(--brand);font-weight:700}
.plan-price{font-size:38px;font-weight:800;margin:4px 0 14px}
.plan-price span{font-size:15px;color:var(--muted);font-weight:500}
.plan ul{list-style:none;padding:0;margin:0 0 18px}
.plan li{padding:6px 0 6px 24px;position:relative;color:var(--muted);font-size:14px}
.plan li::before{content:"✓";position:absolute;left:0;color:var(--ok);font-weight:700}

/* reviews */
.reviews-section{padding:20px 0 10px}
.reviews{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;margin-top:24px}
.review{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px}
.review .stars{color:#ffc83d;font-size:15px;letter-spacing:2px;margin-bottom:10px}
.review p{margin:0 0 14px;font-size:15px;line-height:1.55}
.review .who{color:var(--muted);font-size:13px;font-weight:600}

/* faq */
.faq{padding:30px 0 70px}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin-bottom:12px}
.faq summary{cursor:pointer;font-weight:600}
.faq p{color:var(--muted);margin:12px 0 0}

/* footer */
.site-footer{border-top:1px solid var(--line);background:var(--bg-2)}
.footer-inner{display:flex;align-items:center;gap:24px;padding:28px 0;flex-wrap:wrap}
.footer-inner nav{display:flex;gap:20px}
.footer-inner nav a{color:var(--muted);font-size:14px}
.footer-inner small{margin-left:auto;color:var(--muted);font-size:13px}

/* modal */
.modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.6);display:flex;align-items:center;justify-content:center;z-index:100;padding:20px}
.modal-backdrop[hidden]{display:none}
.modal{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:28px;max-width:380px;width:100%;position:relative;box-shadow:var(--shadow)}
.modal h3{margin:0 0 6px}
.modal-sub{color:var(--muted);font-size:14px;margin:0 0 18px}
.modal-close{position:absolute;top:14px;right:16px;background:none;border:none;color:var(--muted);font-size:24px;cursor:pointer;line-height:1}
.modal input{width:100%;padding:11px 13px;margin-bottom:10px;background:var(--bg-2);border:1px solid var(--line);border-radius:10px;color:var(--txt);font-size:15px}
.modal-alt{text-align:center;color:var(--muted);font-size:13px;margin-top:14px}
.modal-alt a{color:var(--brand)}

/* chat */
.chat-fab{position:fixed;right:22px;bottom:22px;width:56px;height:56px;border-radius:50%;border:none;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;font-size:24px;cursor:pointer;box-shadow:var(--shadow);z-index:90}
.chat-panel{position:fixed;right:22px;bottom:90px;width:320px;max-width:calc(100vw - 44px);height:420px;background:var(--card);
  border:1px solid var(--line);border-radius:16px;display:flex;flex-direction:column;overflow:hidden;box-shadow:var(--shadow);z-index:90}
.chat-panel[hidden]{display:none}
.chat-head{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--line)}
.chat-head button{background:none;border:none;color:var(--muted);font-size:20px;cursor:pointer}
.chat-body{flex:1;padding:14px;overflow-y:auto;display:flex;flex-direction:column;gap:10px}
.msg{padding:9px 13px;border-radius:12px;font-size:14px;max-width:80%}
.msg.bot{background:var(--bg-2);align-self:flex-start;border-bottom-left-radius:4px}
.msg.me{background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;align-self:flex-end;border-bottom-right-radius:4px}
.chat-input{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line)}
.chat-input input{flex:1;padding:10px 12px;background:var(--bg-2);border:1px solid var(--line);border-radius:10px;color:var(--txt)}
.chat-input button{background:linear-gradient(135deg,var(--brand),var(--brand-2));border:none;color:#fff;width:40px;border-radius:10px;cursor:pointer}

/* tool page shared */
.tool-page{padding:40px 0 70px;max-width:820px}
.tool-page h1{font-size:30px;margin:0 0 6px;letter-spacing:-.5px}
.tool-page .lead{color:var(--muted);margin:0 0 26px}
.dropzone{border:2px dashed var(--line);border-radius:16px;padding:46px 20px;text-align:center;background:var(--card);cursor:pointer;transition:.15s}
.dropzone:hover,.dropzone.drag{border-color:var(--brand);background:var(--card-h)}
.dropzone .big{font-size:40px;margin-bottom:10px}
.opt-row{display:flex;gap:16px;flex-wrap:wrap;margin:20px 0}
.opt{flex:1;min-width:160px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px}
.opt label{display:block;color:var(--muted);font-size:13px;margin-bottom:6px}
.opt select,.opt input[type=range],.opt input[type=text]{width:100%}
.tabs{display:flex;gap:8px;margin-bottom:22px;flex-wrap:wrap}
.tabs a{padding:8px 14px;border-radius:999px;border:1px solid var(--line);color:var(--muted);font-size:14px;font-weight:600}
.tabs a.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.back{color:var(--muted);font-size:14px;display:inline-block;margin-bottom:18px}
textarea.io{width:100%;min-height:200px;background:var(--card);border:1px solid var(--line);border-radius:12px;color:var(--txt);padding:14px;font-family:ui-monospace,monospace;font-size:14px;resize:vertical}

@media(max-width:720px){
  .main-nav{display:none}
  .hero-stats{gap:26px}
  .footer-inner small{margin-left:0;width:100%}
}