/* ToolNest — shared stylesheet. Light, clean, fast. No frameworks. */
:root{
  --bg:#f7f9fc;
  --card:#ffffff;
  --ink:#0f1f3d;
  --muted:#5b6b85;
  --line:#e3e9f2;
  --brand:#1d5fd6;
  --brand-dark:#144aab;
  --accent:#0e9f8a;
  --warn:#b45309;
  --danger:#b91c1c;
  --radius:14px;
  --shadow:0 2px 10px rgba(15,31,61,.07);
  --max:1080px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  font-size:16.5px;
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:var(--max);margin:0 auto;padding:0 20px}

/* Header / nav */
.site-header{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-weight:800;font-size:1.35rem;color:var(--ink);display:flex;align-items:center;gap:9px}
.logo:hover{text-decoration:none}
.logo-mark{width:32px;height:32px;display:inline-flex}
.nav-links{display:flex;gap:22px;align-items:center}
.nav-links a{color:var(--muted);font-weight:600;font-size:.95rem}
.nav-links a:hover,.nav-links a.active{color:var(--brand);text-decoration:none}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;padding:8px 12px;font-size:1.1rem;cursor:pointer;color:var(--ink)}
@media(max-width:760px){
  .nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:var(--card);flex-direction:column;align-items:flex-start;padding:14px 20px;gap:14px;border-bottom:1px solid var(--line)}
  .nav-links.open{display:flex}
  .nav-toggle{display:block}
}

/* Hero */
.hero{text-align:center;padding:64px 20px 46px}
.hero h1{font-size:2.5rem;line-height:1.2;margin:0 0 14px;letter-spacing:-.5px}
.hero .lede{font-size:1.15rem;color:var(--muted);max-width:640px;margin:0 auto 26px}
.btn{display:inline-block;background:var(--brand);color:#fff;font-weight:700;padding:12px 26px;border-radius:10px;border:0;cursor:pointer;font-size:1rem}
.btn:hover{background:var(--brand-dark);text-decoration:none;color:#fff}
.btn.secondary{background:#eaf0fb;color:var(--brand)}
.btn.secondary:hover{background:#dbe6fa}
.btn.ghost{background:transparent;color:var(--brand);border:1.5px solid var(--brand)}
.btn-row{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* Tool cards */
.tools-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:34px 0}
@media(max-width:900px){.tools-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.tools-grid{grid-template-columns:1fr}}
.tool-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:10px;transition:transform .12s ease,box-shadow .12s ease}
.tool-card:hover{transform:translateY(-3px);box-shadow:0 6px 18px rgba(15,31,61,.12)}
.tool-card:hover a.card-link{text-decoration:none}
.tool-icon{width:44px;height:44px;border-radius:12px;background:#eaf0fb;display:flex;align-items:center;justify-content:center}
.tool-icon svg{width:24px;height:24px;stroke:var(--brand);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.tool-card h3{margin:0;font-size:1.12rem}
.tool-card p{margin:0;color:var(--muted);font-size:.95rem;flex:1}
.card-link{font-weight:700;font-size:.95rem}

/* Sections */
.section{padding:34px 0}
.section h2{font-size:1.6rem;margin:0 0 8px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);margin-bottom:20px}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:18px}
@media(max-width:760px){.steps{grid-template-columns:1fr}}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.step .n{display:inline-flex;width:34px;height:34px;border-radius:50%;background:var(--brand);color:#fff;font-weight:800;align-items:center;justify-content:center;margin-bottom:10px}
.step h3{margin:0 0 6px;font-size:1.05rem}
.step p{margin:0;color:var(--muted);font-size:.95rem}

/* FAQ */
.faq-item{border-bottom:1px solid var(--line);padding:14px 0}
.faq-item summary{font-weight:700;cursor:pointer;font-size:1.02rem}
.faq-item p{color:var(--muted);margin:8px 0 0}

/* Forms */
.field{margin-bottom:16px}
.field label{display:block;font-weight:700;margin-bottom:6px;font-size:.95rem}
.field .hint{font-weight:400;color:var(--muted);font-size:.85rem;display:block;margin-top:4px}
input[type=text],input[type=number],input[type=email],input[type=url],input[type=date],select,textarea{
  width:100%;padding:11px 13px;border:1.5px solid var(--line);border-radius:9px;font-size:1rem;font-family:inherit;color:var(--ink);background:#fff
}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand);outline-offset:0;border-color:var(--brand)}
textarea{min-height:150px;resize:vertical;font-family:inherit}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 22px}
@media(max-width:640px){.form-grid{grid-template-columns:1fr}}
.check-row{display:flex;gap:10px;align-items:flex-start;margin-bottom:10px;background:#f3f6fb;border:1px solid var(--line);border-radius:9px;padding:11px 13px;cursor:pointer}
.check-row input{margin-top:4px;transform:scale(1.2)}
.check-row span{font-size:.95rem}
.check-row small{display:block;color:var(--muted)}

/* Results */
.results{display:none;margin-top:22px}
.results.show{display:block}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:16px 0}
@media(max-width:640px){.stat-row{grid-template-columns:1fr}}
.stat{background:#f3f6fb;border:1px solid var(--line);border-radius:11px;padding:16px;text-align:center}
.stat .v{font-size:1.55rem;font-weight:800;color:var(--brand)}
.stat .l{font-size:.85rem;color:var(--muted);font-weight:600}
table.data{width:100%;border-collapse:collapse;margin:14px 0;font-size:.96rem}
table.data th,table.data td{border:1px solid var(--line);padding:10px 12px;text-align:left}
table.data th{background:#f3f6fb;font-weight:700}
table.data tr:nth-child(even) td{background:#fafcfe}
.positive{color:#15803d;font-weight:700}
.negative{color:var(--danger);font-weight:700}
.note{background:#fffbeb;border:1px solid #fde68a;border-radius:10px;padding:14px 16px;margin:16px 0;font-size:.94rem}
.note strong{color:var(--warn)}
.disclaimer{background:#fef2f2;border:1px solid #fecaca;border-radius:10px;padding:14px 16px;margin:16px 0;font-size:.9rem;color:#7f1d1d}
.error-msg{background:#fef2f2;border:1px solid #fecaca;color:#7f1d1d;border-radius:9px;padding:10px 14px;margin-bottom:14px;display:none}
pre.output{background:#0f1f3d;color:#dbe6f7;border-radius:11px;padding:18px;overflow-x:auto;font-size:.88rem;line-height:1.55;white-space:pre-wrap;word-break:break-word}
.tag-chip{display:inline-block;background:#eaf0fb;color:var(--brand);border:1px solid #c9dbfa;border-radius:999px;padding:5px 13px;margin:4px;font-size:.88rem;font-weight:600;cursor:pointer;font-family:ui-monospace,monospace}
.tag-chip:hover{background:var(--brand);color:#fff;border-color:var(--brand)}
.tag-cat{margin-bottom:16px}
.tag-cat h4{margin:0 0 8px;font-size:.95rem;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}
.charbar{display:flex;justify-content:space-between;align-items:center;margin-top:8px;font-size:.9rem;color:var(--muted)}
.warn-flag{color:var(--warn);font-weight:700}
.preset-row{display:flex;gap:10px;align-items:center;background:#f3f6fb;border:1px solid var(--line);border-radius:9px;padding:10px 13px;margin-bottom:8px}
.preset-row input{margin:0;transform:scale(1.2)}
.preset-row .pname{font-weight:700}
.preset-row .pdesc{color:var(--muted);font-size:.88rem}
details.advanced{margin-top:12px;border:1px solid var(--line);border-radius:9px;padding:10px 14px;background:#fafcfe}
details.advanced summary{cursor:pointer;font-weight:700;font-size:.94rem}

/* Footer */
footer{background:#0f1f3d;color:#b9c6de;margin-top:50px;padding:40px 0 26px;font-size:.93rem}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:24px;margin-bottom:26px}
@media(max-width:760px){.foot-grid{grid-template-columns:1fr 1fr}}
footer a{color:#dbe6f7}
footer h4{color:#fff;margin:0 0 10px;font-size:.98rem}
footer ul{list-style:none;margin:0;padding:0}
footer li{margin-bottom:7px}
.foot-bottom{border-top:1px solid #243a63;padding-top:18px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;color:#8ea2c4;font-size:.85rem}
.breadcrumb{font-size:.88rem;color:var(--muted);margin:18px 0 4px}
.prose{max-width:760px}
.prose h2{margin-top:28px}

/* Ad slots (managed from the admin panel) */
.ad-slot { display: block; }
.ad-slot:empty { display: none; }
.ad-unit { margin: 1.25rem auto; max-width: 970px; text-align: center; }
.ad-unit img { max-width: 100%; height: auto; border-radius: 8px; }
.ad-label { display: block; font-size: .68rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted, #888); margin-bottom: .35rem; }