/* ===========================================================
   HSNRBK Tools — stylesheet
   =========================================================== */
:root{
  --bg:#f7f8fb; --bg-soft:#eef1f7; --surface:#ffffff; --surface-2:#f3f5f9;
  --text:#121826; --text-soft:#4b5567; --muted:#77809a; --border:#e3e7ef;
  --brand:#4f46e5; --brand-2:#7c3aed; --brand-soft:#eef0fe; --brand-ink:#3730a3;
  --ok:#0f9d58; --ok-soft:#e6f6ee; --warn:#b45309; --warn-soft:#fdf3e3;
  --err:#dc2626; --err-soft:#fdeaea;
  --radius:14px; --radius-sm:10px;
  --shadow:0 1px 2px rgba(16,24,40,.05),0 8px 24px -12px rgba(16,24,40,.14);
  --shadow-lg:0 10px 40px -12px rgba(16,24,40,.22);
  --wrap:1200px;
  --font:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0c1018; --bg-soft:#11161f; --surface:#151b26; --surface-2:#1b222f;
    --text:#e8ecf4; --text-soft:#b3bccd; --muted:#8792a8; --border:#252d3c;
    --brand:#818cf8; --brand-2:#a78bfa; --brand-soft:#1e2336; --brand-ink:#c7cbff;
    --ok:#34d399; --ok-soft:#10261f; --warn:#fbbf24; --warn-soft:#2a2113;
    --err:#f87171; --err-soft:#2a1518;
    --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px -12px rgba(0,0,0,.6);
    --shadow-lg:0 10px 40px -12px rgba(0,0,0,.7);
  }
}
:root[data-theme="dark"]{
  --bg:#0c1018; --bg-soft:#11161f; --surface:#151b26; --surface-2:#1b222f;
  --text:#e8ecf4; --text-soft:#b3bccd; --muted:#8792a8; --border:#252d3c;
  --brand:#818cf8; --brand-2:#a78bfa; --brand-soft:#1e2336; --brand-ink:#c7cbff;
  --ok:#34d399; --ok-soft:#10261f; --warn:#fbbf24; --warn-soft:#2a2113;
  --err:#f87171; --err-soft:#2a1518;
  --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px -12px rgba(0,0,0,.6);
  --shadow-lg:0 10px 40px -12px rgba(0,0,0,.7);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);
  font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.25;margin:0 0 .5em;font-weight:700;letter-spacing:-.015em}
h1{font-size:clamp(1.65rem,1.2rem + 2vw,2.4rem)}
h2{font-size:clamp(1.3rem,1.1rem + 1vw,1.7rem)}
h3{font-size:1.1rem}
p{margin:0 0 1em}
svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.9;
  stroke-linecap:round;stroke-linejoin:round}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 16px}
.muted{color:var(--muted)}
.muted-sm{color:var(--muted);font-size:.85rem}
.skip{position:absolute;left:-9999px}
.skip:focus{left:8px;top:8px;background:var(--brand);color:#fff;padding:8px 14px;border-radius:8px;z-index:99}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--surface) 88%,transparent);
  backdrop-filter:saturate(1.6) blur(10px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;gap:14px;height:64px}
.brand{display:flex;align-items:center;gap:9px;color:var(--text);text-decoration:none;flex:none}
.brand:hover{text-decoration:none}
.brand-mark{width:32px;height:32px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));color:#fff;font-weight:800;font-size:17px}
.brand-text{font-weight:800;font-size:1.06rem;letter-spacing:-.02em}
.brand-text em{font-style:normal;color:var(--brand);font-weight:700}

.hsearch{position:relative;flex:1;max-width:440px;display:flex;align-items:center}
.hsearch svg{position:absolute;left:12px;width:17px;height:17px;color:var(--muted);pointer-events:none}
.hsearch input[type=search]{width:100%;padding:9px 12px 9px 36px;border:1px solid var(--border);border-radius:999px;
  background:var(--surface-2);color:var(--text);font:inherit;font-size:.92rem}
.hsearch input[type=search]:focus{outline:none;border-color:var(--brand);background:var(--surface);
  box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 18%,transparent)}
.search-pop{position:absolute;top:calc(100% + 8px);left:0;right:0;background:var(--surface);
  border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);
  max-height:60vh;overflow:auto;padding:6px;z-index:60}
.search-pop a{display:flex;gap:10px;align-items:center;padding:9px 10px;border-radius:9px;color:var(--text)}
.search-pop a:hover,.search-pop a.active{background:var(--brand-soft);text-decoration:none}
.search-pop .sp-ico{font-size:17px;flex:none}
.search-pop .sp-name{font-weight:600;font-size:.92rem}
.search-pop .sp-desc{color:var(--muted);font-size:.78rem;display:block;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.search-pop .empty{padding:14px;color:var(--muted);font-size:.9rem;text-align:center}

.main-nav{display:flex;gap:4px;margin-left:auto}
.main-nav a{padding:8px 12px;border-radius:9px;color:var(--text-soft);font-size:.92rem;font-weight:500}
.main-nav a:hover{background:var(--surface-2);color:var(--text);text-decoration:none}
.icon-btn{width:38px;height:38px;flex:none;display:grid;place-items:center;border:1px solid var(--border);
  background:var(--surface);color:var(--text-soft);border-radius:10px;cursor:pointer}
.icon-btn:hover{color:var(--text);border-color:var(--brand)}
.nav-toggle{display:none}
.theme-toggle .i-moon{display:none}
:root[data-theme="dark"] .theme-toggle .i-moon{display:block}
:root[data-theme="dark"] .theme-toggle .i-sun{display:none}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]) .theme-toggle .i-moon{display:block}
  :root:not([data-theme="light"]) .theme-toggle .i-sun{display:none}
}
@media (max-width:960px){
  .main-nav{position:fixed;inset:64px 0 auto 0;flex-direction:column;background:var(--surface);
    border-bottom:1px solid var(--border);padding:8px 16px 16px;display:none;box-shadow:var(--shadow)}
  .main-nav.open{display:flex}
  .nav-toggle{display:grid}
}
@media (max-width:620px){
  .brand-text{display:none}
  .header-inner{gap:8px}
}

/* ---------- layout ---------- */
.page{padding:28px 0 56px}
.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;align-items:start}
@media (max-width:1040px){.layout{grid-template-columns:1fr}.sidebar{display:none}}
.sidebar{position:sticky;top:82px;display:grid;gap:18px}
.crumbs{font-size:.83rem;color:var(--muted);margin-bottom:12px;display:flex;gap:6px;flex-wrap:wrap}
.crumbs a{color:var(--muted)}
.crumbs a:hover{color:var(--brand)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:
   radial-gradient(900px 340px at 12% -10%,color-mix(in srgb,var(--brand) 22%,transparent),transparent 60%),
   radial-gradient(700px 320px at 92% 0%,color-mix(in srgb,var(--brand-2) 20%,transparent),transparent 60%),
   var(--bg-soft);
  border-bottom:1px solid var(--border);padding:60px 0 54px;text-align:center}
.hero h1{margin-bottom:.35em}
.hero .grad{background:linear-gradient(120deg,var(--brand),var(--brand-2));-webkit-background-clip:text;
  background-clip:text;color:transparent}
.hero p.lead{max-width:640px;margin:0 auto 22px;color:var(--text-soft);font-size:1.06rem}
.hero-search{max-width:600px;margin:0 auto;position:relative;display:flex}
.hero-search svg{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--muted)}
.hero-search input[type=search]{width:100%;padding:15px 16px 15px 46px;border-radius:999px;border:1px solid var(--border);
  background:var(--surface);color:var(--text);font:inherit;font-size:1rem;box-shadow:var(--shadow)}
.hero-search input[type=search]:focus{outline:none;border-color:var(--brand);
  box-shadow:0 0 0 4px color-mix(in srgb,var(--brand) 16%,transparent)}
.hero-stats{display:flex;gap:26px;justify-content:center;margin-top:26px;flex-wrap:wrap}
.hero-stats div{text-align:center}
.hero-stats b{display:block;font-size:1.5rem;font-weight:800;letter-spacing:-.02em}
.hero-stats span{font-size:.8rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em}

/* ---------- cards / grid ---------- */
.section{margin:40px 0}
.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:16px}
.section-head h2{margin:0}
.section-head a{font-size:.9rem;font-weight:600}
.grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.tool-card{display:block;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:18px;color:var(--text);transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease}
.tool-card:hover{text-decoration:none;transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:var(--brand)}
.tool-card .ico{width:40px;height:40px;border-radius:11px;background:var(--brand-soft);display:grid;
  place-items:center;font-size:20px;margin-bottom:11px}
.tool-card h3{margin:0 0 5px;font-size:1rem}
.tool-card p{margin:0;color:var(--muted);font-size:.86rem;line-height:1.5}
.tool-card .tag{display:inline-block;margin-top:10px;font-size:.7rem;font-weight:700;letter-spacing:.05em;
  text-transform:uppercase;color:var(--brand);background:var(--brand-soft);padding:3px 8px;border-radius:999px}

.cat-grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.cat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;color:var(--text)}
.cat-card:hover{text-decoration:none;border-color:var(--brand);box-shadow:var(--shadow)}
.cat-card .ico{font-size:26px}
.cat-card h3{margin:8px 0 4px}
.cat-card p{color:var(--muted);font-size:.87rem;margin:0}
.cat-card .count{margin-top:10px;font-size:.78rem;color:var(--brand);font-weight:700}

.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow)}
.card + .card{margin-top:18px}

/* ---------- tool page ---------- */
.tool-head{margin-bottom:18px}
.tool-head .ico{width:52px;height:52px;border-radius:14px;background:var(--brand-soft);display:grid;
  place-items:center;font-size:26px;margin-bottom:12px}
.tool-head h1{margin-bottom:.25em}
.tool-head p{color:var(--text-soft);margin:0;max-width:70ch}

.field{margin-bottom:16px}
.field > label,.lbl{display:block;font-weight:600;font-size:.86rem;margin-bottom:6px;color:var(--text-soft)}
.hint{font-size:.78rem;color:var(--muted);margin-top:5px}
input[type=text],input[type=number],input[type=email],input[type=url],input[type=date],
input[type=search],input[type=password],select,textarea{
  width:100%;padding:11px 13px;border:1px solid var(--border);border-radius:var(--radius-sm);
  background:var(--surface-2);color:var(--text);font:inherit;font-size:.95rem}
textarea{min-height:170px;resize:vertical;font-family:var(--mono);font-size:.88rem;line-height:1.6}
textarea.plain{font-family:var(--font);font-size:.95rem}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);background:var(--surface);
  box-shadow:0 0 0 3px color-mix(in srgb,var(--brand) 15%,transparent)}
input[type=range]{width:100%;accent-color:var(--brand)}
input[type=color]{width:100%;height:46px;padding:4px;border:1px solid var(--border);
  border-radius:var(--radius-sm);background:var(--surface-2);cursor:pointer}
select{cursor:pointer}
.row{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(190px,1fr))}
.row-2{display:grid;gap:14px;grid-template-columns:1fr 1fr}
@media(max-width:700px){.row-2{grid-template-columns:1fr}}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:11px 18px;border-radius:var(--radius-sm);
  border:1px solid transparent;background:var(--brand);color:#fff;font:inherit;font-weight:600;font-size:.92rem;
  cursor:pointer;transition:filter .15s ease,transform .08s ease}
.btn:hover{filter:brightness(1.08);text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn.ghost{background:var(--surface);border-color:var(--border);color:var(--text)}
.btn.ghost:hover{border-color:var(--brand);color:var(--brand);filter:none}
.btn.sm{padding:7px 12px;font-size:.83rem}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.btns{display:flex;flex-wrap:wrap;gap:9px;margin:4px 0 2px}

.stats{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));margin:16px 0}
.stat{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px;text-align:center}
.stat b{display:block;font-size:1.45rem;font-weight:800;letter-spacing:-.02em;color:var(--brand)}
.stat span{font-size:.74rem;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}

.out{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:14px;font-family:var(--mono);font-size:.88rem;white-space:pre-wrap;word-break:break-word;
  min-height:56px;max-height:460px;overflow:auto;margin:0}
.result-big{font-size:1.9rem;font-weight:800;letter-spacing:-.02em;color:var(--brand);text-align:center;margin:6px 0}
.note{background:var(--brand-soft);border:1px solid color-mix(in srgb,var(--brand) 25%,transparent);
  border-radius:var(--radius-sm);padding:12px 14px;font-size:.87rem;color:var(--text-soft)}
.note.ok{background:var(--ok-soft);border-color:color-mix(in srgb,var(--ok) 35%,transparent)}
.note.err{background:var(--err-soft);border-color:color-mix(in srgb,var(--err) 35%,transparent);color:var(--err)}
.note.warn{background:var(--warn-soft);border-color:color-mix(in srgb,var(--warn) 35%,transparent)}
.table{width:100%;border-collapse:collapse;font-size:.9rem}
.table th,.table td{padding:9px 11px;border-bottom:1px solid var(--border);text-align:left}
.table th{font-size:.76rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
.table tbody tr:hover{background:var(--surface-2)}
.chips{display:flex;flex-wrap:wrap;gap:7px}
.chip{background:var(--surface-2);border:1px solid var(--border);border-radius:999px;padding:5px 11px;
  font-size:.82rem;cursor:pointer}
.chip:hover,.chip.on{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.switch{display:flex;align-items:center;gap:8px;font-size:.9rem;cursor:pointer;user-select:none}
.switch input{width:auto;accent-color:var(--brand);width:17px;height:17px}
.drop{border:2px dashed var(--border);border-radius:var(--radius);padding:34px 18px;text-align:center;
  background:var(--surface-2);cursor:pointer;transition:.15s}
.drop:hover,.drop.over{border-color:var(--brand);background:var(--brand-soft)}
.drop b{display:block;font-size:1rem;margin-bottom:4px}
.drop span{color:var(--muted);font-size:.86rem}
.thumbs{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));margin-top:16px}
.thumb{border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;background:var(--surface-2)}
.thumb img{width:100%;aspect-ratio:4/3;object-fit:contain;background:
  repeating-conic-gradient(var(--border) 0% 25%,transparent 0% 50%) 50%/16px 16px}
.thumb .meta{padding:9px;font-size:.76rem;color:var(--muted);line-height:1.45}
.thumb .meta b{display:block;color:var(--text);font-size:.8rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.progress{height:6px;border-radius:99px;background:var(--surface-2);overflow:hidden;margin:10px 0}
.progress i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--brand),var(--brand-2));transition:width .3s}

/* ---------- prose (legal/about pages, tool copy) ---------- */
.prose{max-width:78ch}
.prose h2{margin-top:1.8em}
.prose h3{margin-top:1.4em}
.prose ul,.prose ol{padding-left:1.25em;margin:0 0 1em}
.prose li{margin-bottom:.4em}
.prose code{background:var(--surface-2);border:1px solid var(--border);border-radius:6px;
  padding:1px 5px;font-family:var(--mono);font-size:.86em}
.faq details{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);
  padding:13px 16px;margin-bottom:9px}
.faq summary{cursor:pointer;font-weight:600;font-size:.95rem}
.faq details[open] summary{margin-bottom:8px;color:var(--brand)}
.faq p{margin:0;color:var(--text-soft);font-size:.92rem}

/* ---------- ads ---------- */
.ad-box{margin:22px 0;text-align:center;min-height:90px;position:relative}
.ad-label{display:block;font-size:.64rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:5px}
.ad-placeholder{border:1px dashed var(--border);border-radius:var(--radius-sm);background:var(--surface-2);
  color:var(--muted);font-size:.8rem;display:grid;place-items:center;min-height:90px}
.ad-sidebar .ad-placeholder{min-height:600px}
.ad-sidebar{margin:0}
.ad-top{margin-top:0}

/* ---------- footer ---------- */
.site-footer{background:var(--surface);border-top:1px solid var(--border);padding:44px 0 22px;margin-top:40px}
.foot-grid{display:grid;gap:28px;grid-template-columns:2fr repeat(4,1fr)}
@media(max-width:940px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.foot-grid{grid-template-columns:1fr}}
.foot-brand p{color:var(--muted);font-size:.87rem;margin:12px 0 0;max-width:38ch}
.foot-col h3{font-size:.8rem;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin-bottom:10px}
.foot-col ul{list-style:none;margin:0;padding:0}
.foot-col li{margin-bottom:6px}
.foot-col a{color:var(--text-soft);font-size:.88rem}
.foot-col a:hover{color:var(--brand)}
.foot-col a.more{color:var(--brand);font-weight:600}
.foot-bottom{border-top:1px solid var(--border);margin-top:30px;padding-top:18px;display:flex;
  justify-content:space-between;gap:14px;flex-wrap:wrap;align-items:center}
.foot-bottom p{margin:0;color:var(--muted);font-size:.84rem}
.foot-bottom nav{display:flex;gap:16px;flex-wrap:wrap}
.foot-bottom a{color:var(--muted);font-size:.84rem}
.foot-bottom a:hover{color:var(--brand)}

/* ---------- misc ---------- */
.to-top{position:fixed;right:18px;bottom:18px;width:42px;height:42px;border-radius:50%;border:1px solid var(--border);
  background:var(--surface);color:var(--text);cursor:pointer;box-shadow:var(--shadow);opacity:0;
  pointer-events:none;transition:opacity .2s;z-index:40;font-size:18px}
.to-top.show{opacity:1;pointer-events:auto}
.toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,20px);background:var(--text);color:var(--bg);
  padding:11px 18px;border-radius:999px;font-size:.88rem;font-weight:600;opacity:0;pointer-events:none;
  transition:.22s;z-index:99;box-shadow:var(--shadow-lg)}
.toast.show{opacity:1;transform:translate(-50%,0)}
.empty-state{text-align:center;padding:60px 20px;color:var(--muted)}
.empty-state .big{font-size:52px;margin-bottom:10px}
@media print{.site-header,.site-footer,.ad-box,.sidebar,.to-top{display:none!important}}

/* ===========================================================
   Additions — v1.1 (85 tools, blog, category menu)
   =========================================================== */

/* ---------- category dropdown in the header ---------- */
.nav-drop{position:relative}
.nav-btn{display:flex;align-items:center;gap:5px;padding:8px 12px;border:none;border-radius:9px;
  background:none;color:var(--text-soft);font:inherit;font-size:.92rem;font-weight:500;cursor:pointer}
.nav-btn:hover,.nav-btn[aria-expanded="true"]{background:var(--surface-2);color:var(--text)}
.nav-btn svg{width:14px;height:14px;transition:transform .16s}
.nav-btn[aria-expanded="true"] svg{transform:rotate(180deg)}
.nav-menu{position:absolute;top:calc(100% + 8px);left:0;min-width:520px;display:none;
  grid-template-columns:1fr 1fr;gap:4px;padding:8px;background:var(--surface);
  border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);z-index:60}
.nav-menu.open{display:grid}
.nav-menu a{display:flex;gap:10px;align-items:flex-start;padding:9px 10px;border-radius:9px;color:var(--text)}
.nav-menu a:hover{background:var(--brand-soft);text-decoration:none}
.nav-menu .nm-ico{font-size:18px;line-height:1.2;flex:none}
.nav-menu .nm-name{font-weight:600;font-size:.9rem;display:block}
.nav-menu .nm-count{font-size:.75rem;color:var(--muted)}
@media (max-width:960px){
  .nav-drop{width:100%}
  .nav-menu{position:static;min-width:0;grid-template-columns:1fr;box-shadow:none;border:none;padding:0;background:none}
  .nav-menu.open{display:grid}
  .nav-btn{width:100%;justify-content:space-between}
}

/* ---------- file lists (PDF tools) ---------- */
.filelist{list-style:none;margin:16px 0 0;padding:0}
.filelist li{display:flex;align-items:center;gap:10px;padding:9px 12px;border:1px solid var(--border);
  border-radius:var(--radius-sm);background:var(--surface-2);margin-bottom:8px;font-size:.9rem}
.filelist .fl-n{width:24px;height:24px;flex:none;border-radius:50%;background:var(--brand-soft);
  color:var(--brand);display:grid;place-items:center;font-size:.75rem;font-weight:700}
.filelist .fl-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:500}
.filelist .fl-size{color:var(--muted);font-size:.8rem;flex:none}
.filelist .fl-act{display:flex;gap:4px;flex:none}
.filelist .fl-act .btn{padding:4px 9px;font-size:.78rem}
@media(max-width:560px){ .filelist .fl-size{display:none} }

/* ---------- SERP preview ---------- */
.serp-box{background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);padding:16px;
  font-family:arial,sans-serif;color:#202124}
:root[data-theme="dark"] .serp-box{background:#202124;color:#e8eaed;border-color:#3c4043}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .serp-box{background:#202124;color:#e8eaed;border-color:#3c4043}}
.serp-box .serp-url{font-size:.8rem;color:#4d5156;margin-bottom:3px}
.serp-box .serp-title{color:#1a0dab;font-size:1.15rem;line-height:1.3;margin-bottom:3px}
.serp-box .serp-desc{font-size:.87rem;color:#4d5156;line-height:1.55}
.serp-box .serp-date{color:#70757a}
:root[data-theme="dark"] .serp-box .serp-title{color:#8ab4f8}
:root[data-theme="dark"] .serp-box .serp-url,
:root[data-theme="dark"] .serp-box .serp-desc{color:#bdc1c6}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]) .serp-box .serp-title{color:#8ab4f8}
  :root:not([data-theme="light"]) .serp-box .serp-url,
  :root:not([data-theme="light"]) .serp-box .serp-desc{color:#bdc1c6}
}
.serp-mobile{max-width:420px}

/* ---------- Open Graph cards ---------- */
.og-card{border:1px solid var(--border);border-radius:10px;overflow:hidden;background:var(--surface-2);max-width:520px}
.og-card .og-img{aspect-ratio:1200/630;background-size:cover;background-position:center;background-color:var(--bg-soft)}
.og-card .og-img.og-none{display:grid;place-items:center;color:var(--muted);font-size:.85rem;aspect-ratio:1200/630}
.og-card .og-img.og-small{aspect-ratio:auto;height:90px;background-size:cover}
.og-card .og-body{padding:11px 13px}
.og-card .og-host{font-size:.72rem;color:var(--muted);text-transform:uppercase;letter-spacing:.03em}
.og-card .og-title{font-weight:700;font-size:.95rem;margin:3px 0;line-height:1.35}
.og-card .og-desc{font-size:.84rem;color:var(--muted);line-height:1.45}
.og-card.og-tw{border-radius:16px}
.og-card.og-wa{max-width:400px;background:var(--brand-soft);display:flex;gap:10px;align-items:stretch}
.og-card.og-wa .og-body{flex:1}
.og-card.og-wa .og-img{width:90px;flex:none}

/* ---------- fancy text rows ---------- */
.fancy-row{display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid var(--border);
  border-radius:var(--radius-sm);background:var(--surface-2);margin-bottom:8px}
.fancy-name{width:130px;flex:none;font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.fancy-val{flex:1;font-size:1.05rem;word-break:break-word;line-height:1.7}
@media(max-width:620px){
  .fancy-row{flex-wrap:wrap}
  .fancy-name{width:100%}
}

/* ---------- blog ---------- */
.post-grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}
.post-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:20px;color:var(--text);transition:transform .16s ease,box-shadow .16s ease}
.post-card:hover{text-decoration:none;transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:var(--brand)}
.post-card .pc-cat{font-size:.7rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;
  color:var(--brand);margin-bottom:8px}
.post-card h3{margin:0 0 7px;font-size:1.08rem;line-height:1.35}
.post-card p{margin:0;color:var(--muted);font-size:.88rem;line-height:1.55;flex:1}
.post-card .pc-meta{margin-top:12px;font-size:.78rem;color:var(--muted)}
.post-head{margin-bottom:22px}
.post-head h1{margin-bottom:.3em}
.post-meta{color:var(--muted);font-size:.87rem;display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.post-body{font-size:1.02rem;line-height:1.8}
.post-body h2{margin-top:1.9em;padding-top:.2em}
.post-body h3{margin-top:1.5em}
.post-body img{border-radius:10px;margin:1.4em 0}
.post-body .tool-cta{display:flex;gap:14px;align-items:center;background:var(--brand-soft);
  border:1px solid color-mix(in srgb,var(--brand) 30%,transparent);border-radius:var(--radius);
  padding:16px 18px;margin:1.6em 0}
.post-body .tool-cta .cta-ico{font-size:28px;flex:none}
.post-body .tool-cta b{display:block;font-size:1rem}
.post-body .tool-cta span{font-size:.87rem;color:var(--text-soft)}
.post-body .tool-cta .btn{flex:none;margin-left:auto}
@media(max-width:560px){
  .post-body .tool-cta{flex-wrap:wrap}
  .post-body .tool-cta .btn{margin-left:0;width:100%}
}
.toc{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius);padding:16px 20px;margin:0 0 26px}
.toc h2{font-size:.82rem;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin:0 0 10px}
.toc ol{margin:0;padding-left:18px}
.toc li{margin-bottom:5px;font-size:.92rem}