:root{
  --primary:#2563eb;
  --primary-dark:#1d4ed8;
  --bg:#f8fafc;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --border:#e2e8f0;
  --ok:#16a34a;
  --ok-bg:#f0fdf4;
  --warn:#b45309;
  --warn-bg:#fffbeb;
  --err:#dc2626;
  --err-bg:#fef2f2;
  --radius:14px;
  --shadow:0 8px 24px rgba(15,23,42,.06);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  background:var(--bg);color:var(--text);line-height:1.55;
}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}
.container{max-width:1080px;margin:0 auto;padding:0 18px}

/* Header */
.site-header{background:var(--card);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:30}
.site-header .container{position:relative;display:flex;align-items:center;justify-content:space-between;min-height:62px;gap:10px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.2rem;color:var(--text);min-width:0}
.brand:hover{text-decoration:none}
.brand span:last-child{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand .logo{width:34px;height:34px;border-radius:9px;background:var(--primary);color:#fff;display:grid;place-items:center;font-size:1.1rem;flex:0 0 auto}
.nav{display:flex;gap:22px;align-items:center}
.nav a{color:var(--muted);font-weight:600;font-size:.95rem}
.nav a:hover{color:var(--text);text-decoration:none}

/* Hamburger toggle (hidden on desktop) */
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px;flex:0 0 auto}
.nav-toggle span{display:block;height:2px;width:24px;background:var(--text);margin:5px 0;border-radius:2px;transition:transform .2s,opacity .2s}
.site-header--dark .nav-toggle span{background:#fff}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media (max-width:720px){
  .nav-toggle{display:block}
  .nav{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--card);border-top:1px solid var(--border);box-shadow:0 14px 28px rgba(15,23,42,.14);padding:4px 0;max-height:80vh;overflow:auto}
  .nav.open{display:flex}
  .nav a{padding:13px 18px;color:var(--text);border-bottom:1px solid var(--border)}
  .nav a:last-child{border-bottom:0}
  .site-header--dark .nav{background:#0f172a}
  .site-header--dark .nav a{color:#e2e8f0;border-color:#1e293b}
}

/* Announcement bar */
.announce{color:#fff;font-size:.9rem;text-align:center;padding:8px 0}
.announce a{color:#fff;text-decoration:underline}

/* Dark header + logo */
.site-header--dark{background:#0f172a;border-bottom-color:#1e293b}
.site-header--dark .brand{color:#fff}
.site-header--dark .nav a{color:#cbd5e1}
.site-header--dark .nav a:hover{color:#fff}
.brand-logo{height:34px;width:auto;display:block}

/* Hero */
.hero{padding:54px 0 34px;text-align:center}
.hero h1{font-size:2.1rem;margin:0 0 12px;letter-spacing:-.02em}
.hero p{font-size:1.1rem;color:var(--muted);max-width:640px;margin:0 auto}
.hero--filled{padding:54px 32px;border-radius:18px;margin-top:18px}
.hero--filled p{color:#475569}
.hero--left{text-align:left}
.hero--left p{margin-left:0}
.hero--light h1,.hero--light p{color:#fff}
.hero--light p{opacity:.94}
.hero-badge{display:inline-block;background:#eef2ff;color:var(--primary-dark);padding:5px 14px;border-radius:999px;font-size:.82rem;font-weight:700;margin-bottom:12px}
.hero--light .hero-badge{background:rgba(255,255,255,.2);color:#fff}
.hero-cta{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap;justify-content:center}
.hero--left .hero-cta{justify-content:flex-start}

/* Generic home section */
.home-sec{margin:6px 0}
.custom-block{margin:6px 0 24px}

/* Features */
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;margin:8px 0 30px}
.feature{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}
.feature .ficon{font-size:1.8rem}
.feature h3{margin:8px 0 4px;font-size:1.08rem}
.feature p{color:var(--muted);font-size:.92rem;margin:0}

/* Stats band */
.stat-band{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px;margin:18px 0 30px}
.stat-item{text-align:center;min-width:130px}
.snum{font-size:2rem;font-weight:800;color:var(--primary)}
.slabel{color:var(--muted);font-size:.9rem}

/* FAQ */
.faq{max-width:780px;margin:0 0 30px}
.faq details{background:var(--card);border:1px solid var(--border);border-radius:10px;margin-bottom:10px;overflow:hidden}
.faq summary{cursor:pointer;padding:14px 16px;font-weight:600;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';float:right;color:var(--muted);font-weight:700}
.faq details[open] summary::after{content:'–'}
.faq-a{padding:0 16px 14px;color:#475569}

/* Section heading */
.section-title{font-size:1.35rem;margin:30px 0 16px}

/* Department grid */
.dept-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:16px;margin:8px 0 40px}
.dept-card{
  display:flex;flex-direction:column;gap:6px;background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);transition:transform .12s,box-shadow .12s;color:var(--text)
}
.dept-card:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(15,23,42,.1);text-decoration:none}
.dept-card .icon{font-size:1.9rem}
.dept-card .name{font-weight:700;font-size:1.12rem}
.dept-card .desc{color:var(--muted);font-size:.9rem}
.dept-card .go{margin-top:6px;color:var(--primary);font-weight:600;font-size:.9rem}

/* Buttons */
.btn{
  display:inline-block;background:var(--primary);color:#fff;border:0;padding:12px 20px;border-radius:10px;
  font-size:1rem;font-weight:600;cursor:pointer;transition:background .12s
}
.btn:hover{background:var(--primary-dark);text-decoration:none}
.btn.secondary{background:#eef2ff;color:var(--primary-dark)}
.btn.block{display:block;width:100%;text-align:center}
.btn:disabled{opacity:.55;cursor:not-allowed}

/* Preset cards */
.preset-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px;margin:18px 0 40px}
.preset{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.preset .head{padding:18px 20px;border-bottom:1px solid var(--border)}
.preset .head h3{margin:0 0 4px;font-size:1.15rem}
.preset .specs{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.spec{background:#f1f5f9;color:#334155;border-radius:999px;padding:3px 10px;font-size:.78rem;font-weight:600}
.preset .instructions{color:var(--muted);font-size:.86rem;margin:10px 0 0}
.preset .body{padding:18px 20px}

/* Dropzone */
.drop{
  border:2px dashed #cbd5e1;border-radius:12px;padding:24px;text-align:center;cursor:pointer;
  transition:border-color .12s,background .12s;color:var(--muted)
}
.drop:hover,.drop.drag{border-color:var(--primary);background:#f5f8ff;color:var(--primary-dark)}
.drop strong{color:var(--text)}
.drop input{display:none}
.preview{margin-top:14px;text-align:center}
.preview img{margin:0 auto;border:1px solid var(--border);border-radius:8px;background:#fff}
.result{margin-top:14px;padding:12px 14px;border-radius:10px;background:var(--ok-bg);border:1px solid #bbf7d0;font-size:.9rem}
.result.warn{background:var(--warn-bg);border-color:#fde68a;color:var(--warn)}
.result .row{display:flex;justify-content:space-between;gap:10px}
.muted{color:var(--muted)}
.small{font-size:.85rem}
.center{text-align:center}
.spinner{display:inline-block;width:16px;height:16px;border:2px solid rgba(255,255,255,.5);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;vertical-align:-3px;margin-right:8px}
@keyframes spin{to{transform:rotate(360deg)}}

/* breadcrumb / back */
.crumb{margin:22px 0 4px;font-size:.9rem;color:var(--muted)}

/* Footer */
.site-footer{border-top:1px solid var(--border);background:var(--card);margin-top:40px;padding:26px 0;color:var(--muted);font-size:.9rem}
.site-footer .container{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px}

/* Alerts */
.alert{padding:12px 16px;border-radius:10px;margin:16px 0;font-size:.92rem}
.alert.error{background:var(--err-bg);border:1px solid #fecaca;color:var(--err)}
.alert.success{background:var(--ok-bg);border:1px solid #bbf7d0;color:var(--ok)}

/* Ad slots */
.ad-slot{margin:18px 0;text-align:center;overflow:hidden}
@media (max-width:640px){ .ad-dev-desktop{display:none!important} }
@media (min-width:641px){ .ad-dev-mobile{display:none!important} }
.ad-sticky{position:fixed;left:0;right:0;bottom:0;margin:0;padding:6px 8px;background:#fff;border-top:1px solid var(--border);box-shadow:0 -2px 12px rgba(15,23,42,.12);z-index:60}
.ad-sticky .ad-close{position:absolute;top:-24px;right:8px;background:#0f172a;color:#fff;border:0;border-radius:8px 8px 0 0;padding:3px 10px;cursor:pointer;font-size:.85rem;line-height:1}

/* Progress bar */
.progress{height:8px;background:#e2e8f0;border-radius:999px;overflow:hidden;margin:4px 0}
.progress .bar{height:100%;width:40%;background:var(--primary);border-radius:999px;animation:prog 1.1s infinite ease-in-out}
@keyframes prog{0%{margin-left:-42%}100%{margin-left:102%}}
.proc-msg{margin:6px 0 0;color:var(--muted)}

/* Crop + rotate widget */
.cropwrap{margin-top:6px}
.crop-stage{position:relative;width:100%;height:320px;background:#0f172a;border-radius:10px;overflow:hidden;touch-action:none;user-select:none;-webkit-user-select:none}
.crop-canvas{display:block;width:100%;height:100%}
.crop-box{position:absolute;border:2px solid #fff;box-shadow:0 0 0 9999px rgba(15,23,42,.55);box-sizing:border-box;cursor:move}
.crop-h{position:absolute;width:16px;height:16px;background:#fff;border:2px solid var(--primary);border-radius:50%;touch-action:none}
.crop-h-nw{left:-9px;top:-9px;cursor:nwse-resize}
.crop-h-ne{right:-9px;top:-9px;cursor:nesw-resize}
.crop-h-sw{left:-9px;bottom:-9px;cursor:nesw-resize}
.crop-h-se{right:-9px;bottom:-9px;cursor:nwse-resize}
.crop-tools{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:10px 0 4px}
.crop-tools .fine{display:flex;align-items:center;gap:6px;font-size:.82rem;color:var(--muted)}
.crop-tools .fine input{width:110px}
.crop-hint{margin:2px 0 10px}
.crop-actions{display:flex;gap:8px;flex-wrap:wrap}

/* Custom-size tool */
.custom-tool{max-width:860px;margin:0 0 20px}
.ctool-form{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:12px;margin-top:8px}
.ctool-form .cf label{display:block;font-weight:600;font-size:.82rem;margin-bottom:4px;color:var(--text)}
.ctool-form .cf input,.ctool-form .cf select{width:100%;padding:9px 10px;border:1px solid #cbd5e1;border-radius:8px;font-size:.95rem;box-sizing:border-box;font-family:inherit;background:#fff}

/* Static pages */
.page-single{max-width:820px;margin:6px auto 0}
.page-single h1{font-size:2rem;line-height:1.2;margin:.2em 0 .4em}
.page-single.page-full{max-width:100%}
.contact-form{margin-top:22px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}
.contact-form .cf-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:560px){.contact-form .cf-grid{grid-template-columns:1fr}}
.contact-form .field{margin-bottom:14px}
.contact-form label{display:block;font-weight:600;margin-bottom:5px;font-size:.9rem}
.contact-form input,.contact-form textarea{width:100%;padding:11px 12px;border:1px solid #cbd5e1;border-radius:9px;font-size:1rem;font-family:inherit;box-sizing:border-box}

/* Ad blocks */
.adblk{margin:18px 0;max-width:100%;overflow:hidden}
.adblk-center{text-align:center}
.adblk-left{float:left;margin:6px 18px 12px 0}
.adblk-right{float:right;margin:6px 0 12px 18px}
.adblk-label{font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:#94a3b8;margin-bottom:4px;text-align:center}

/* PWA install button */
.pwa-install{position:fixed;left:16px;bottom:16px;z-index:70;background:var(--primary);color:#fff;border:0;padding:12px 18px;border-radius:999px;font-weight:700;font-size:.95rem;cursor:pointer;box-shadow:0 8px 22px rgba(15,23,42,.28)}
.pwa-install:hover{background:var(--primary-dark)}

/* Blog list */
.post-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px;margin:16px 0 30px}
.post-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column}
.post-thumb img{width:100%;height:170px;object-fit:cover;display:block}
.post-body{padding:16px 18px;display:flex;flex-direction:column;gap:4px}
.post-body h2{margin:0 0 2px;font-size:1.15rem;line-height:1.3}
.post-body h2 a{color:var(--text)}
.post-meta{color:var(--muted);font-size:.82rem}
.post-body p{color:#475569;font-size:.93rem;margin:6px 0}

/* Single post */
.post-single{max-width:760px;margin:6px auto 0}
.post-single h1{font-size:2rem;line-height:1.2;margin:.2em 0}
.post-hero{width:100%;max-height:380px;object-fit:cover;border-radius:12px;margin:14px 0;border:1px solid var(--border)}
.post-content{font-size:1.05rem;line-height:1.78;color:#1e293b}
.post-content h2{margin:1.5em 0 .5em;font-size:1.4rem}
.post-content h3{margin:1.3em 0 .4em}
.post-content p{margin:0 0 1em}
.post-content ul,.post-content ol{padding-left:1.4em;margin:0 0 1em}
.post-content li{margin:.3em 0}
.post-content img{max-width:100%;border-radius:8px;margin:1em 0}
.post-content a{text-decoration:underline}

@media (max-width:540px){
  .hero h1{font-size:1.6rem}
  .post-single h1{font-size:1.5rem}
}