/* =========================================================
   ToolBox Pro — Design System
   Palette:  --ink:#10172A  --indigo:#4F46E5  --teal:#14B8A6
             --paper:#F7F8FC --line:#E4E7F1  --amber:#F59E0B
   Type: 'Plus Jakarta Sans' (display/body) + 'JetBrains Mono' (numbers/results)
   Signature: blueprint-grid texture on hero + card corners, used sparingly
   ========================================================= */

:root{
  --ink:#10172A;
  --ink-soft:#3B4257;
  --indigo:#4F46E5;
  --indigo-dark:#3730A3;
  --teal:#14B8A6;
  --amber:#F59E0B;
  --paper:#F7F8FC;
  --card:#FFFFFF;
  --line:#E4E7F1;
  --muted:#6B7280;
  --radius:14px;
  --radius-lg:20px;
  --shadow-sm:0 1px 2px rgba(16,23,42,.06);
  --shadow-md:0 8px 24px rgba(16,23,42,.08);
  --shadow-lg:0 20px 50px rgba(16,23,42,.14);
  --font-display:'Plus Jakarta Sans',system-ui,sans-serif;
  --font-mono:'JetBrains Mono',monospace;
}

[data-bs-theme="dark"]{
  --ink:#EEF1FB;
  --ink-soft:#B7BDD6;
  --paper:#0B0F1E;
  --card:#141B30;
  --line:#262F4A;
  --muted:#8890AC;
  --shadow-sm:0 1px 2px rgba(0,0,0,.3);
  --shadow-md:0 8px 24px rgba(0,0,0,.35);
  --shadow-lg:0 20px 50px rgba(0,0,0,.5);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-display);
  background:var(--paper);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
  transition:background .25s ease,color .25s ease;
}
.text-mono, .result-value, .tool-output, code, .stat-number{font-family:var(--font-mono)}
a{text-decoration:none;color:var(--indigo)}
.container{max-width:1240px}

/* ===================== HEADER ===================== */
.site-header{
  background:color-mix(in srgb, var(--card) 88%, transparent);
  backdrop-filter:blur(14px) saturate(150%);
  border-bottom:1px solid var(--line);
  z-index:1000;
}
.navbar-brand{display:flex;align-items:center;gap:.6rem;font-weight:800;font-size:1.25rem;color:var(--ink)}
.brand-icon{
  width:38px;height:38px;border-radius:10px;
  background:linear-gradient(135deg,var(--indigo),var(--teal));
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:1rem;
  box-shadow:var(--shadow-sm);
}
.nav-pills .nav-link.active, .nav-pills .show>.nav-link {
    color: var(--bs-nav-pills-link-active-color) !important;
    
}
.nav-link{font-weight:600;color:var(--ink-soft)!important;padding:.5rem 1rem!important}
.nav-link:hover{color:var(--indigo)!important}
.dropdown-menu{border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-md);background:var(--card)}
.dropdown-item{color:var(--ink-soft);font-weight:500;padding:.5rem 1rem;border-radius:8px;margin:2px 6px;width:calc(100% - 12px)}
.dropdown-item:hover{background:color-mix(in srgb, var(--indigo) 10%, transparent);color:var(--indigo)}

.btn-icon{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);
  background:var(--card);color:var(--ink-soft);display:flex;align-items:center;justify-content:center;
}
.btn-icon:hover{border-color:var(--indigo);color:var(--indigo)}
.navbar-toggler{border:1px solid var(--line);border-radius:8px;padding:.4rem .6rem;color:var(--ink)}
.navbar-toggler:focus{box-shadow:none}

/* Search */
.search-form{width:260px;margin-left:1rem}
.search-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:.85rem}
.search-form .form-control{
  padding-left:38px;border-radius:99px;border:1px solid var(--line);
  background:var(--paper);color:var(--ink);font-size:.9rem;height:40px;
}
.search-form .form-control:focus{box-shadow:0 0 0 3px color-mix(in srgb, var(--indigo) 20%, transparent);border-color:var(--indigo)}
.search-results{
  position:absolute;top:46px;left:0;right:0;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-lg);
  max-height:340px;overflow-y:auto;z-index:1200;padding:.4rem;
}
.search-result-item{display:flex;align-items:center;gap:.6rem;padding:.55rem .7rem;border-radius:10px;color:var(--ink)}
.search-result-item:hover{background:color-mix(in srgb, var(--indigo) 8%, transparent)}
.search-result-item i{width:30px;height:30px;border-radius:8px;background:color-mix(in srgb, var(--indigo) 12%, transparent);color:var(--indigo);display:flex;align-items:center;justify-content:center;font-size:.8rem}
.search-empty{padding:1rem;text-align:center;color:var(--muted);font-size:.9rem}

@media(max-width:991px){
  .search-form{width:100%;margin:1rem 0 0}
  .navbar-nav{margin-top:.5rem}
}

/* ===================== BREADCRUMBS ===================== */
.breadcrumb-bar{background:var(--card);border-bottom:1px solid var(--line);padding:.6rem 0}
.breadcrumb{font-size:.85rem}
.breadcrumb-item a{color:var(--muted);font-weight:500}
.breadcrumb-item.active{color:var(--ink-soft);font-weight:600}
.breadcrumb-item+.breadcrumb-item::before{color:var(--muted)}

/* ===================== HERO ===================== */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(900px 500px at 15% -10%, color-mix(in srgb, var(--teal) 35%, transparent), transparent),
    linear-gradient(135deg,var(--indigo-dark) 0%, var(--indigo) 55%, var(--teal) 130%);
  color:#fff;padding:5rem 0 6rem;
}
.hero::before{
  /* blueprint grid texture — signature element */
  content:"";position:absolute;inset:0;opacity:.12;
  background-image:
    linear-gradient(rgba(255,255,255,.6) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.6) 1px, transparent 1px);
  background-size:42px 42px;
  mask-image:radial-gradient(ellipse at top, black, transparent 75%);
}
.hero-content{position:relative;z-index:2;max-width:760px;margin:0 auto;text-align:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:.5rem;background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.25);padding:.4rem .9rem;border-radius:99px;
  font-size:.8rem;font-weight:600;letter-spacing:.03em;margin-bottom:1.3rem;backdrop-filter:blur(6px);
}
.hero h1{font-size:clamp(2.1rem,5vw,3.4rem);font-weight:800;line-height:1.1;margin-bottom:1rem;letter-spacing:-.02em}
.hero h1 .accent{color:#FDE68A}
.hero p.lead{font-size:1.15rem;color:rgba(255,255,255,.88);margin-bottom:2.2rem}

.hero-search{
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);
  backdrop-filter:blur(16px);border-radius:var(--radius-lg);padding:.5rem;
  display:flex;gap:.5rem;max-width:560px;margin:0 auto 1.5rem;box-shadow:var(--shadow-lg);
}
.hero-search input{
  flex:1;border:none;background:transparent;color:#fff;padding:.75rem 1rem;font-size:1rem;outline:none;
}
.hero-search input::placeholder{color:rgba(255,255,255,.7)}
.hero-search button{
  background:#fff;color:var(--indigo-dark);border:none;border-radius:12px;padding:.7rem 1.4rem;font-weight:700;
}
.hero-stats{display:flex;gap:2.2rem;justify-content:center;flex-wrap:wrap;margin-top:1rem}
.hero-stats .stat-number{font-size:1.6rem;font-weight:700;color:#fff}
.hero-stats .stat-label{font-size:.8rem;color:rgba(255,255,255,.75)}

/* ===================== SECTIONS ===================== */
.section{padding:4.5rem 0}
.section-alt{background:var(--card)}
.section-head{text-align:center;max-width:620px;margin:0 auto 2.6rem}
.section-eyebrow{color:var(--teal);font-weight:700;font-size:.8rem;letter-spacing:.08em;text-transform:uppercase}
.section-head h2{font-size:clamp(1.6rem,3vw,2.2rem);font-weight:800;margin:.4rem 0 .6rem;letter-spacing:-.01em}
.section-head p{color:var(--muted)}

/* ===================== TOOL CARDS ===================== */
.tool-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.4rem;height:100%;display:flex;flex-direction:column;gap:.7rem;
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  position:relative;
}
.tool-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:color-mix(in srgb, var(--indigo) 30%, var(--line))}
.tool-card-icon{
  width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg, color-mix(in srgb, var(--indigo) 18%, transparent), color-mix(in srgb, var(--teal) 18%, transparent));
  color:var(--indigo);font-size:1.15rem;
}
.tool-card h3{font-size:1.02rem;font-weight:700;margin:0;color:var(--ink)}
.tool-card p{font-size:.86rem;color:var(--muted);margin:0;flex:1}
.tool-card .tool-card-link{font-size:.82rem;font-weight:700;color:var(--indigo);display:inline-flex;align-items:center;gap:.3rem}
.fav-btn{
  position:absolute;top:1rem;right:1rem;background:none;border:none;color:var(--line);font-size:1rem;
  transition:color .15s ease, transform .15s ease;
}
.fav-btn:hover{transform:scale(1.15)}
.fav-btn.active{color:var(--amber)}

/* Category section */
.category-block{margin-bottom:1rem}
.category-head{display:flex;align-items:center;gap:.7rem;margin-bottom:1.4rem}
.category-head .cat-icon{
  width:42px;height:42px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:color-mix(in srgb, var(--indigo) 12%, transparent);color:var(--indigo);font-size:1.05rem;
}
.category-head h2{font-size:1.3rem;font-weight:800;margin:0}
.category-head p{font-size:.85rem;color:var(--muted);margin:0}

/* ===================== TOOL PAGE ===================== */
.tool-page-header{
  background:linear-gradient(135deg, color-mix(in srgb, var(--indigo) 8%, var(--paper)), color-mix(in srgb, var(--teal) 6%, var(--paper)));
  border-bottom:1px solid var(--line);padding:2.6rem 0 2.2rem;
}
.tool-page-header h1{font-size:clamp(1.6rem,3.4vw,2.3rem);font-weight:800;margin-bottom:.5rem;display:flex;align-items:center;gap:.8rem}
.tool-page-header .tool-icon-lg{
  width:54px;height:54px;border-radius:14px;background:linear-gradient(135deg,var(--indigo),var(--teal));
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:1.4rem;flex-shrink:0;
}
.tool-page-header p{color:var(--muted);max-width:680px;font-size:1rem}

.tool-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:2rem;box-shadow:var(--shadow-sm);
}
.tool-panel label{font-weight:600;font-size:.88rem;color:var(--ink-soft);margin-bottom:.35rem}
.tool-panel .form-control,.tool-panel .form-select{
  border-radius:10px;border:1px solid var(--line);background:var(--paper);color:var(--ink);
  padding:.65rem .9rem;font-size:.95rem;
}
.tool-panel .form-control:focus,.tool-panel .form-select:focus{border-color:var(--indigo);box-shadow:0 0 0 3px color-mix(in srgb, var(--indigo) 15%, transparent)}
.tool-panel textarea.form-control{font-family:var(--font-mono);font-size:.9rem}

.btn-primary-grad{
  background:linear-gradient(135deg,var(--indigo),var(--teal));border:none;color:#fff;font-weight:700;
  padding:.7rem 1.6rem;border-radius:10px;box-shadow:var(--shadow-sm);
}
.btn-primary-grad:hover{filter:brightness(1.08);color:#fff}
.btn-outline-soft{border:1px solid var(--line);color:var(--ink-soft);background:var(--card);border-radius:10px;font-weight:600;padding:.6rem 1.1rem}
.btn-outline-soft:hover{border-color:var(--indigo);color:var(--indigo)}

.result-box{
  background:color-mix(in srgb, var(--teal) 7%, var(--paper));border:1px dashed color-mix(in srgb, var(--teal) 40%, var(--line));
  border-radius:var(--radius);padding:1.4rem;margin-top:1.4rem;
}
.result-value{font-size:1.7rem;font-weight:700;color:var(--indigo-dark)}
[data-bs-theme="dark"] .result-value{color:#A5B4FC}
.result-label{font-size:.8rem;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;font-weight:700}

.action-btns{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:1rem}
.action-btns .btn{font-size:.85rem;padding:.45rem .9rem;border-radius:8px}

/* Content blocks: description / how-to / features / faq */
.content-block{margin-top:3rem}
.content-block h2{font-size:1.4rem;font-weight:800;margin-bottom:1rem}
.content-block h3{font-size:1.05rem;font-weight:700;margin-bottom:.4rem}
.content-block p,.content-block li{color:var(--ink-soft);font-size:.95rem;line-height:1.7}
.feature-list{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:.8rem}
.feature-list li{display:flex;align-items:flex-start;gap:.6rem;background:var(--card);border:1px solid var(--line);border-radius:10px;padding:.8rem 1rem}
.feature-list i{color:var(--teal);margin-top:.2rem}

.faq-item{border-bottom:1px solid var(--line);padding:1rem 0}
.faq-question{font-weight:700;cursor:pointer;display:flex;justify-content:space-between;align-items:center;color:var(--ink)}
.faq-answer{color:var(--muted);font-size:.9rem;margin-top:.6rem;display:none}
.faq-item.open .faq-answer{display:block}
.faq-item.open .faq-chevron{transform:rotate(180deg)}
.faq-chevron{transition:transform .2s ease;color:var(--muted)}

/* Related tools */
.related-tools-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}

/* Share buttons */
.share-buttons{display:flex;gap:.5rem;flex-wrap:wrap}
.share-btn{
  width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--card);border:1px solid var(--line);color:var(--ink-soft);
}
.share-btn:hover{color:#fff;border-color:transparent}
.share-btn.fb:hover{background:#1877F2}
.share-btn.tw:hover{background:#000}
.share-btn.li:hover{background:#0A66C2}
.share-btn.wa:hover{background:#25D366}
.share-btn.copy:hover{background:var(--indigo)}

/* ===================== FAQ / CTA / STATIC PAGES ===================== */
.cta-section{
  background:linear-gradient(135deg,var(--indigo-dark),var(--indigo) 60%,var(--teal));
  border-radius:var(--radius-lg);padding:3.2rem 2rem;text-align:center;color:#fff;margin:0 auto;
  position:relative;overflow:hidden;
}
.cta-section h2{font-weight:800;font-size:clamp(1.5rem,3vw,2rem);margin-bottom:.6rem}
.cta-section p{color:rgba(255,255,255,.85);margin-bottom:1.6rem}

.static-page-hero{padding:3.5rem 0 2.5rem;text-align:center;background:var(--card);border-bottom:1px solid var(--line)}
.static-page-hero h1{font-weight:800;font-size:clamp(1.8rem,3.6vw,2.6rem)}
.static-page-hero p{color:var(--muted);max-width:600px;margin:.6rem auto 0}
.static-content{padding:3rem 0;max-width:840px;margin:0 auto}
.static-content h2{font-weight:800;font-size:1.3rem;margin:2rem 0 .8rem}
.static-content h2:first-child{margin-top:0}
.static-content p,.static-content li{color:var(--ink-soft);line-height:1.75}

/* ===================== FOOTER ===================== */
.site-footer{background:var(--ink);color:#C7CBDC;padding:4rem 0 1.6rem;margin-top:3rem}
[data-bs-theme="dark"] .site-footer{background:#070A14}
.footer-brand{display:flex;align-items:center;gap:.6rem;font-weight:800;font-size:1.2rem;color:#fff;margin-bottom:.8rem}
.footer-about{font-size:.88rem;color:#9CA3C4;line-height:1.7}
.footer-social{display:flex;gap:.6rem;margin-top:1rem}
.footer-social a{width:36px;height:36px;border-radius:50%;border:1px solid #2A3354;display:flex;align-items:center;justify-content:center;color:#C7CBDC}
.footer-social a:hover{background:var(--indigo);border-color:var(--indigo);color:#fff}
.footer-heading{color:#fff;font-weight:700;font-size:.85rem;text-transform:uppercase;letter-spacing:.05em;margin-bottom:1rem}
.footer-links{list-style:none;padding:0}
.footer-links li{margin-bottom:.6rem}
.footer-links a{color:#9CA3C4;font-size:.9rem}
.footer-links a:hover{color:#fff}
.footer-cat-grid{display:grid;grid-template-columns:1fr 1fr;gap:.6rem}
.footer-cat-grid a{color:#9CA3C4;font-size:.85rem}
.footer-cat-grid a:hover{color:#fff}
.footer-divider{border-color:#262F4A;margin:2.2rem 0 1.2rem}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:.5rem;font-size:.85rem}

.back-to-top{
  position:fixed;bottom:24px;right:24px;width:46px;height:46px;border-radius:50%;
  background:var(--indigo);color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-md);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all .25s ease;z-index:900;
}
.back-to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-to-top:hover{background:var(--indigo-dark);color:#fff}

/* ===================== UTILITIES ===================== */
.badge-soft{background:color-mix(in srgb, var(--indigo) 12%, transparent);color:var(--indigo);font-weight:600;padding:.35rem .7rem;border-radius:8px;font-size:.75rem}
.recently-used-strip{display:flex;gap:.6rem;overflow-x:auto;padding-bottom:.4rem}
.recently-used-strip a{
  flex-shrink:0;background:var(--card);border:1px solid var(--line);border-radius:99px;padding:.4rem .9rem;
  font-size:.82rem;font-weight:600;color:var(--ink-soft);display:flex;align-items:center;gap:.4rem;white-space:nowrap;
}
.recently-used-strip a:hover{border-color:var(--indigo);color:var(--indigo)}

@media(max-width:768px){
  .hero{padding:3.5rem 0 4rem}
  .section{padding:3rem 0}
  .tool-panel{padding:1.4rem}
}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}