/* Luminesca Tools - shared styles */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#f6f8fb;--surface:#ffffff;--border:#e3e8ef;--border-strong:#cbd5e1;
  --text:#0f172a;--muted:#64748b;--muted-2:#94a3b8;
  --primary:#185fa5;--primary-600:#2563eb;--primary-soft:#e6f1fb;
  --green:#0f766e;--green-soft:#e1f5ee;--amber:#b45309;--amber-soft:#faeeda;
  --purple:#6d28d9;--purple-soft:#f1ebfe;--rose:#be123c;--rose-soft:#fbeaf0;
  --radius:12px;--shadow:0 1px 3px rgba(15,23,42,.06),0 4px 16px rgba(15,23,42,.05);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;font-size:16px}
a{color:var(--primary-600);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1080px;margin:0 auto;padding:0 20px}
.hidden{display:none!important}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}
.header-inner{max-width:1080px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;gap:9px;font-weight:500;font-size:17px;color:var(--text)}
.brand:hover{text-decoration:none}
.brand svg{display:block}
.brand .brand-sub{font-size:13px;color:var(--muted);font-weight:400}
.nav{display:flex;gap:4px;margin-left:auto;flex-wrap:wrap}
.nav a{padding:7px 13px;border-radius:999px;font-size:14px;color:var(--muted);font-weight:400}
.nav a:hover{background:var(--bg);color:var(--text);text-decoration:none}
.nav a.active{background:var(--primary-soft);color:var(--primary)}
@media(max-width:640px){.nav{display:none}}

/* hero */
.hero{background:linear-gradient(180deg,var(--primary-soft),var(--bg) 92%);padding:52px 0 34px;text-align:center}
.hero h1{font-size:34px;font-weight:500;letter-spacing:-.5px}
.hero p{max-width:640px;margin:12px auto 0;color:var(--muted);font-size:16px}
.hero-search{max-width:520px;margin:24px auto 0;position:relative}
.hero-search input{width:100%;padding:13px 20px 13px 46px;border:1px solid var(--border-strong);border-radius:999px;font-size:15px;outline:none;background:var(--surface);box-shadow:var(--shadow)}
.hero-search input:focus{border-color:var(--primary-600);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.hero-search .search-ico{position:absolute;left:18px;top:50%;transform:translateY(-50%);color:var(--muted-2);pointer-events:none}

/* category filter */
.filter-bar{max-width:1080px;margin:26px auto 0;padding:0 20px;display:flex;gap:8px;flex-wrap:wrap;justify-content:center}
.pill{padding:7px 16px;border-radius:999px;border:1px solid var(--border-strong);background:var(--surface);font-size:13.5px;color:var(--muted);cursor:pointer;transition:all .15s}
.pill:hover{border-color:var(--primary-600);color:var(--primary)}
.pill.active{background:var(--primary);border-color:var(--primary);color:#fff}

/* tool grid */
.section{padding:34px 0}
.section h2{font-size:20px;font-weight:500;margin-bottom:4px}
.section .sub{color:var(--muted);font-size:14px;margin-bottom:22px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;display:flex;flex-direction:column;gap:10px;box-shadow:var(--shadow);transition:transform .15s,border-color .15s}
.card:hover{transform:translateY(-2px);border-color:var(--border-strong)}
.card .ico{width:42px;height:42px;border-radius:10px;display:flex;align-items:center;justify-content:center}
.card h3{font-size:16px;font-weight:500}
.card p{font-size:13.5px;color:var(--muted);flex:1}
.card .go{font-size:13.5px;font-weight:500;color:var(--primary-600)}
.card .go:hover{text-decoration:none}
.cat-tag{display:inline-block;font-size:11.5px;color:var(--muted);border:1px solid var(--border);border-radius:999px;padding:2px 9px;align-self:flex-start}
.ico.dev{background:var(--primary-soft);color:var(--primary)}
.ico.txt{background:var(--green-soft);color:var(--green)}
.ico.cnv{background:var(--purple-soft);color:var(--purple)}
.ico.img{background:var(--amber-soft);color:var(--amber)}
.ico.cal{background:var(--rose-soft);color:var(--rose)}

/* tool page */
.page{padding:36px 0 60px}
.tool-hero{max-width:820px;margin:0 auto 30px;text-align:center}
.tool-hero h1{font-size:28px;font-weight:500;letter-spacing:-.3px}
.tool-hero p{color:var(--muted);margin-top:8px;font-size:15px}
.crumbs{font-size:13px;color:var(--muted-2);margin-bottom:14px;text-align:center}
.crumbs a{color:var(--muted)}
.tool-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);max-width:820px;margin:0 auto;padding:28px}
.tool-card label{display:block;font-size:13.5px;font-weight:500;margin-bottom:8px;color:var(--text)}
textarea,.tool-card input[type=text],.tool-card input[type=number],.tool-card input[type=date],.tool-card select{width:100%;padding:11px 13px;border:1px solid var(--border-strong);border-radius:9px;font-size:14.5px;font-family:inherit;outline:none;background:#fff;color:var(--text)}
textarea{font-family:var(--mono);font-size:13.5px;line-height:1.5;resize:vertical;min-height:130px}
textarea:focus,.tool-card input:focus,.tool-card select:focus{border-color:var(--primary-600);box-shadow:0 0 0 3px rgba(37,99,235,.1)}
.btn{display:inline-flex;align-items:center;gap:7px;padding:10px 20px;border-radius:9px;border:1px solid var(--border-strong);background:var(--surface);font-size:14.5px;font-weight:500;cursor:pointer;transition:all .15s;color:var(--text)}
.btn:hover{border-color:var(--primary-600);color:var(--primary)}
.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn.primary:hover{background:var(--primary-600)}
.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0 4px}
.result-box{background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:15px;margin-top:16px;font-family:var(--mono);font-size:13.5px;word-break:break-all;white-space:pre-wrap;max-height:280px;overflow:auto}
.result-label{font-size:12.5px;color:var(--muted);text-transform:uppercase;letter-spacing:.4px;margin:18px 0 6px;font-weight:500}
.err-box{background:#fef2f2;border:1px solid #fecaca;color:#b91c1c;border-radius:9px;padding:12px 14px;font-size:13.5px;margin-top:14px;font-family:var(--mono);white-space:pre-wrap;display:none}
.ok-box{background:var(--green-soft);border:1px solid #99f6e4;color:var(--green);border-radius:9px;padding:10px 14px;font-size:13.5px;margin-top:14px;display:none}
.stats{display:flex;gap:12px;flex-wrap:wrap;margin-top:16px}
.stat{flex:1;min-width:110px;background:var(--bg);border:1px solid var(--border);border-radius:10px;padding:14px;text-align:center}
.stat .num{font-size:22px;font-weight:500;color:var(--primary)}
.stat .lbl{font-size:12.5px;color:var(--muted);margin-top:2px}
fieldset{border:none;display:grid;gap:14px}
.radio-row{display:flex;gap:16px;flex-wrap:wrap;font-size:14px}
.radio-row label{display:flex;align-items:center;gap:6px;margin:0;font-weight:400}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:640px){.two-col{grid-template-columns:1fr}}

/* how-to / faq / related */
.info-sec{max-width:820px;margin:34px auto 0;padding:0 4px}
.info-sec h2{font-size:19px;font-weight:500;margin-bottom:14px}
.info-sec ol,.info-sec ul{padding-left:22px;color:var(--text);font-size:14.5px}
.info-sec li{margin-bottom:8px}
.info-sec p{font-size:14.5px;color:var(--muted);margin-bottom:12px}
.faq-item{border:1px solid var(--border);border-radius:11px;background:var(--surface);margin-bottom:10px;overflow:hidden}
.faq-item summary{padding:14px 18px;font-size:14.5px;font-weight:500;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq-item summary::after{content:"+";font-size:18px;color:var(--muted)}
.faq-item[open] summary::after{content:"\2212"}
.faq-item .faq-a{padding:0 18px 14px;font-size:14px;color:var(--muted)}
.related{max-width:820px;margin:40px auto 0}
.related h2{font-size:19px;font-weight:500;margin-bottom:16px}
.related .grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px}
.rel-card{background:var(--surface);border:1px solid var(--border);border-radius:11px;padding:15px;display:flex;flex-direction:column;gap:6px}
.rel-card h3{font-size:14.5px;font-weight:500}
.rel-card p{font-size:12.5px;color:var(--muted)}

/* footer */
.site-footer{margin-top:40px;border-top:1px solid var(--border);background:var(--surface);padding:28px 0 40px}
.footer-inner{max-width:1080px;margin:0 auto;padding:0 20px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;font-size:13.5px;color:var(--muted)}
.footer-inner .links{margin-left:auto;display:flex;gap:16px}
.footer-inner a{color:var(--muted)}

/* toast */
.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%) translateY(80px);background:#0f172a;color:#fff;font-size:13.5px;padding:11px 20px;border-radius:999px;opacity:0;transition:all .25s;z-index:99;pointer-events:none}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}