/*
Theme Name: ViHub Tools
Theme URI: https://blog.vihub.site
Author: ViHub
Author URI: https://blog.vihub.site
Description: A beautiful, fast, dark-glass theme for a free online tools hub. Ships with a working tools workspace (word counter, case converter, password generator, JSON formatter, BMI calculator, age calculator, unit converter, lorem ipsum and QR generator), a polished blog, and SEO-friendly FAQ sections.
Version: 1.0.1
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: vihub-tools
Tags: custom-menu, custom-logo, featured-images, threaded-comments, translation-ready, blog
*/

/* ============ Reset & tokens ============ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#070b16; --bg-2:#0a101f; --panel:#0e1730; --card:#101a33; --card-2:#0c1428;
  --line:rgba(148,163,184,.16); --line-2:rgba(148,163,184,.28);
  --text:#eaf0fd; --muted:#9dafcf; --muted-2:#7488ab;
  --v1:#8b5cf6; --v2:#22d3ee; --v3:#f472b6; --ok:#34d399; --warn:#fbbf24; --bad:#fb7185;
  --grad:linear-gradient(92deg,#a78bfa 0%,#22d3ee 55%,#34d399 100%);
  --grad-btn:linear-gradient(92deg,#7c3aed,#0891b2);
  --radius:20px; --radius-s:14px;
  --shadow:0 24px 60px -24px rgba(2,6,20,.75);
  --font:'Plus Jakarta Sans',system-ui,-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:16.5px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;z-index:-2;background:
  radial-gradient(820px 420px at 12% -6%,rgba(124,58,237,.28),transparent 62%),
  radial-gradient(760px 420px at 88% -4%,rgba(34,211,238,.18),transparent 60%),
  radial-gradient(900px 600px at 50% 115%,rgba(52,211,153,.10),transparent 60%),
  linear-gradient(180deg,#070b16,#080d1a 40%,#070b16)}
img{max-width:100%;height:auto}
a{color:#7dd3fc;text-decoration:none}
a:hover{color:#a5f3fc}
::selection{background:rgba(139,92,246,.5)}
.wrap{width:min(1180px,92%);margin-inline:auto}
.mono{font-family:var(--mono)}

/* ============ Header ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(7,11,22,.72);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.header-in{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px;color:var(--text)!important}
.brand-mark{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--grad-btn);box-shadow:0 10px 26px -8px rgba(124,58,237,.65);flex:none}
.brand-mark svg{width:24px;height:24px}
.brand-name{font-size:1.28rem;font-weight:800;letter-spacing:-.02em;line-height:1}
.brand-name em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.brand-tag{display:block;font-size:.68rem;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-2);margin-top:3px}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav ul{display:flex;gap:4px;list-style:none}
.main-nav a{color:var(--muted);font-weight:600;font-size:.95rem;padding:9px 14px;border-radius:999px;transition:.2s}
.main-nav a:hover{color:var(--text);background:rgba(148,163,184,.10)}
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:700;font-size:.95rem;padding:12px 22px;border-radius:999px;border:1px solid transparent;cursor:pointer;transition:.22s;font-family:var(--font)}
.btn-primary{background:var(--grad-btn);color:#fff!important;box-shadow:0 14px 30px -10px rgba(124,58,237,.55)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 38px -10px rgba(34,211,238,.45);color:#fff}
.btn-ghost{background:rgba(148,163,184,.07);border-color:var(--line-2);color:var(--text)!important}
.btn-ghost:hover{background:rgba(148,163,184,.14);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:.88rem}
.nav-toggle{display:none;background:none;border:1px solid var(--line-2);border-radius:10px;width:44px;height:44px;cursor:pointer;color:var(--text);font-size:1.15rem}

/* ============ Hero ============ */
.hero{padding:86px 0 64px;text-align:center;position:relative}
.hero-badge{display:inline-flex;gap:8px;align-items:center;background:rgba(139,92,246,.12);border:1px solid rgba(139,92,246,.35);color:#c4b5fd;font-size:.82rem;font-weight:700;letter-spacing:.04em;padding:7px 16px;border-radius:999px}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(52,211,153,.18)}
.hero h1{font-size:clamp(2.5rem,6vw,4.3rem);line-height:1.06;font-weight:800;letter-spacing:-.03em;margin:26px auto 18px;max-width:900px}
.hero h1 .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p.lede{color:var(--muted);font-size:clamp(1.02rem,2vw,1.22rem);max-width:680px;margin:0 auto 34px}
.tool-search{max-width:620px;margin:0 auto;position:relative}
.tool-search input{width:100%;background:rgba(14,23,48,.85);border:1px solid var(--line-2);border-radius:999px;padding:17px 24px 17px 52px;color:var(--text);font-size:1.02rem;font-family:var(--font);outline:none;transition:.2s;box-shadow:var(--shadow)}
.tool-search input:focus{border-color:var(--v1);box-shadow:0 0 0 4px rgba(139,92,246,.22),var(--shadow)}
.tool-search svg{position:absolute;left:19px;top:50%;transform:translateY(-50%);width:21px;height:21px;opacity:.65}
.hero-stats{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:36px}
.hstat{background:rgba(14,23,48,.66);border:1px solid var(--line);border-radius:var(--radius-s);padding:13px 22px;min-width:132px}
.hstat b{display:block;font-size:1.3rem;letter-spacing:-.02em}
.hstat span{font-size:.78rem;color:var(--muted-2);font-weight:600;letter-spacing:.08em;text-transform:uppercase}

/* ============ Sections ============ */
.section{padding:64px 0}
.section-head{text-align:center;max-width:640px;margin:0 auto 40px}
.section-head .kicker{font-size:.78rem;font-weight:800;letter-spacing:.22em;text-transform:uppercase;color:#67e8f9}
.section-head h2{font-size:clamp(1.7rem,3.6vw,2.4rem);letter-spacing:-.025em;font-weight:800;margin:10px 0 10px}
.section-head p{color:var(--muted)}

/* ============ Tool grid ============ */
.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(248px,1fr));gap:18px}
.tool-card{background:linear-gradient(180deg,var(--card),var(--card-2));border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;cursor:pointer;transition:.24s;position:relative;overflow:hidden;text-align:left;width:100%;font-family:var(--font);color:var(--text)}
.tool-card::after{content:"";position:absolute;inset:auto -30% -65% -30%;height:120px;background:radial-gradient(closest-side,rgba(139,92,246,.35),transparent);opacity:0;transition:.25s}
.tool-card:hover{transform:translateY(-5px);border-color:rgba(139,92,246,.55);box-shadow:var(--shadow)}
.tool-card:hover::after{opacity:1}
.tool-card.active{border-color:var(--v2);box-shadow:0 0 0 3px rgba(34,211,238,.25),var(--shadow)}
.tool-ico{width:52px;height:52px;border-radius:15px;display:grid;place-items:center;font-size:1.45rem;margin-bottom:16px;background:rgba(139,92,246,.14);border:1px solid rgba(139,92,246,.3)}
.tool-card:nth-child(3n+2) .tool-ico{background:rgba(34,211,238,.12);border-color:rgba(34,211,238,.3)}
.tool-card:nth-child(3n) .tool-ico{background:rgba(244,114,182,.12);border-color:rgba(244,114,182,.3)}
.tool-card h3{font-size:1.08rem;font-weight:700;letter-spacing:-.01em;margin-bottom:6px}
.tool-card p{color:var(--muted);font-size:.9rem;line-height:1.55}
.tool-cat{position:absolute;top:18px;right:18px;font-size:.66rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--muted-2);border:1px solid var(--line);padding:4px 9px;border-radius:999px}
.no-results{display:none;text-align:center;color:var(--muted);padding:34px;border:1px dashed var(--line-2);border-radius:var(--radius)}

/* ============ Workspace ============ */
.workspace{background:linear-gradient(180deg,rgba(16,26,51,.9),rgba(10,17,35,.9));border:1px solid var(--line);border-radius:26px;box-shadow:var(--shadow);overflow:hidden}
.ws-head{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:20px 26px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.ws-head h3{font-size:1.22rem;font-weight:800;letter-spacing:-.01em;display:flex;gap:11px;align-items:center}
.ws-live{font-size:.74rem;font-weight:800;letter-spacing:.1em;color:var(--ok);border:1px solid rgba(52,211,153,.4);background:rgba(52,211,153,.08);padding:5px 11px;border-radius:999px}
.ws-body{padding:26px}
.tool-panel{display:none;animation:fadeUp .3s ease}
.tool-panel.current{display:block}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.field label{display:block;font-size:.82rem;font-weight:700;letter-spacing:.05em;color:var(--muted);margin-bottom:8px;text-transform:uppercase}
textarea,input[type=text],input[type=number],input[type=date],select{width:100%;background:#0a1122;border:1px solid var(--line-2);border-radius:var(--radius-s);color:var(--text);padding:13px 15px;font-size:.98rem;font-family:var(--font);outline:none;transition:.18s}
textarea{resize:vertical;min-height:130px;line-height:1.6}
textarea:focus,input:focus,select:focus{border-color:var(--v1);box-shadow:0 0 0 3px rgba(139,92,246,.22)}
input[type=range]{width:100%;accent-color:var(--v1)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.chip-btn{background:rgba(148,163,184,.08);border:1px solid var(--line-2);color:var(--text);font-family:var(--font);font-weight:600;font-size:.88rem;padding:9px 15px;border-radius:999px;cursor:pointer;transition:.18s}
.chip-btn:hover{border-color:var(--v1);background:rgba(139,92,246,.15)}
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(118px,1fr));gap:12px;margin-top:18px}
.stat-box{background:#0a1122;border:1px solid var(--line);border-radius:var(--radius-s);padding:14px;text-align:center}
.stat-box b{display:block;font-size:1.35rem;letter-spacing:-.02em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat-box span{font-size:.72rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--muted-2)}
.result-big{font-size:1.5rem;font-weight:800;letter-spacing:-.01em}
.checks{display:flex;gap:16px;flex-wrap:wrap;margin-top:6px}
.checks label{display:flex;gap:8px;align-items:center;font-size:.92rem;color:var(--muted);cursor:pointer;text-transform:none;letter-spacing:0;font-weight:600}
.checks input{accent-color:var(--v1);width:17px;height:17px}
.meter{height:10px;border-radius:99px;background:#0a1122;border:1px solid var(--line);overflow:hidden;margin-top:10px}
.meter i{display:block;height:100%;width:0;background:var(--grad);transition:width .3s}
.hint{color:var(--muted-2);font-size:.86rem;margin-top:10px}
.error-text{color:var(--bad);font-weight:600}
.qr-out{display:none;text-align:center;margin-top:18px}
.qr-out img{background:#fff;padding:14px;border-radius:16px;width:212px;height:212px}
.pill-result{display:inline-block;background:rgba(34,211,238,.1);border:1px solid rgba(34,211,238,.35);border-radius:12px;padding:10px 16px;margin-top:14px}

/* ============ Features / FAQ / CTA ============ */
.feat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px}
.feat{background:linear-gradient(180deg,var(--card),var(--card-2));border:1px solid var(--line);border-radius:var(--radius);padding:28px 26px}
.feat .tool-ico{margin-bottom:14px}
.feat h3{font-size:1.05rem;margin-bottom:7px}
.feat p{color:var(--muted);font-size:.93rem}
.faq{max-width:820px;margin:0 auto}
.faq details{background:var(--card-2);border:1px solid var(--line);border-radius:var(--radius-s);margin-bottom:12px;overflow:hidden}
.faq summary{cursor:pointer;padding:18px 22px;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:#67e8f9;font-size:1.2rem;font-weight:800}
.faq details[open ] summary::after{content:"–"}
.faq .faq-a{padding:0 22px 19px;color:var(--muted);font-size:.95rem}
.cta-band{background:var(--grad-btn);border-radius:26px;padding:52px 40px;text-align:center;box-shadow:var(--shadow);position:relative;overflow:hidden}
.cta-band h2{font-size:clamp(1.6rem,3.4vw,2.3rem);letter-spacing:-.02em;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.85);max-width:520px;margin:0 auto 24px}
.cta-band .btn{background:#fff;color:#4c1d95!important;box-shadow:0 16px 34px -12px rgba(0,0,0,.5)}
.cta-band .btn:hover{transform:translateY(-2px)}

/* ============ Blog ============ */
.page-hero{padding:64px 0 10px;text-align:center}
.page-hero h1{font-size:clamp(2rem,4.6vw,3.1rem);letter-spacing:-.03em;font-weight:800}
.page-hero p{color:var(--muted);max-width:600px;margin:12px auto 0}
.post-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:20px;padding:44px 0 70px}
.post-card{background:linear-gradient(180deg,var(--card),var(--card-2));border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.22s;display:flex;flex-direction:column}
.post-card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.45);box-shadow:var(--shadow)}
.post-card .thumb{aspect-ratio:16/9;background:radial-gradient(600px 260px at 20% 0%,rgba(124,58,237,.5),transparent),radial-gradient(500px 240px at 90% 20%,rgba(34,211,238,.35),transparent),#0d1730;display:grid;place-items:center;overflow:hidden}
.post-card .thumb img{width:100%;height:100%;object-fit:cover}
.post-card .thumb .thumb-mark{font-size:2.2rem;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.post-card .pc-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:9px;flex:1}
.post-meta{font-size:.76rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-2)}
.post-card h3{font-size:1.14rem;line-height:1.35;letter-spacing:-.01em}
.post-card h3 a{color:var(--text)}
.post-card h3 a:hover{color:#a5f3fc}
.post-card p{color:var(--muted);font-size:.92rem;flex:1}
.read-more{font-weight:700;font-size:.9rem}
.pagination{display:flex;gap:8px;justify-content:center;padding:0 0 70px}
.pagination a,.pagination span{background:var(--card);border:1px solid var(--line-2);color:var(--text);width:42px;height:42px;display:grid;place-items:center;border-radius:12px;font-weight:700}
.pagination span.current{background:var(--grad-btn);border-color:transparent}

/* ============ Article / page ============ */
.article{max-width:780px;margin:0 auto;padding:56px 0 76px}
.article .post-meta{text-align:center}
.article h1{font-size:clamp(1.9rem,4.4vw,2.9rem);line-height:1.14;letter-spacing:-.028em;text-align:center;margin:14px 0 16px;font-weight:800}
.article .lede{text-align:center;color:var(--muted);margin-bottom:26px}
.article .hero-img{border-radius:22px;overflow:hidden;border:1px solid var(--line);margin-bottom:34px}
.entry-content{font-size:1.05rem;color:#d7e1f5}
.entry-content p{margin-bottom:1.25em}
.entry-content h2{font-size:1.55rem;letter-spacing:-.02em;margin:1.5em 0 .55em;color:var(--text)}
.entry-content h3{font-size:1.25rem;margin:1.4em 0 .5em;color:var(--text)}
.entry-content ul,.entry-content ol{margin:0 0 1.25em 1.3em}
.entry-content li{margin-bottom:.4em}
.entry-content blockquote{border-left:3px solid var(--v1);padding:6px 0 6px 20px;color:var(--muted);margin:1.4em 0;font-style:italic}
.entry-content pre{background:#0a1122;border:1px solid var(--line);border-radius:14px;padding:18px;overflow:auto;font-family:var(--mono);font-size:.88rem;margin-bottom:1.3em}
.entry-content code{font-family:var(--mono);font-size:.88em;background:rgba(139,92,246,.15);padding:2px 6px;border-radius:6px}
.entry-content pre code{background:none;padding:0}
.entry-content img{border-radius:14px}
.post-nav{display:flex;justify-content:space-between;gap:14px;max-width:780px;margin:0 auto 70px;flex-wrap:wrap}
.post-nav a{background:var(--card);border:1px solid var(--line);padding:13px 19px;border-radius:14px;font-weight:600;color:var(--text);font-size:.92rem}
.comments-area{max-width:780px;margin:0 auto 70px;background:var(--card-2);border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.comments-area h3{margin-bottom:14px}
.comment-form label{display:block;font-size:.85rem;color:var(--muted);margin:10px 0 5px}
.comment-form .submit{margin-top:14px}

/* ============ Footer ============ */
.site-footer{border-top:1px solid var(--line);background:rgba(6,9,18,.8);margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;padding:56px 0 40px}
.site-footer h4{font-size:.85rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2);margin-bottom:15px}
.site-footer ul{list-style:none}
.site-footer li{margin-bottom:9px}
.site-footer a{color:var(--muted);font-size:.94rem}
.site-footer a:hover{color:var(--text)}
.footer-about{color:var(--muted);font-size:.94rem;max-width:300px;margin-top:13px}
.footer-bar{border-top:1px solid var(--line);padding:19px 0;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:var(--muted-2);font-size:.86rem}

/* ============ Toast & misc ============ */
.toast{position:fixed;left:50%;bottom:26px;transform:translate(-50%,90px);background:#0f1c38;border:1px solid rgba(52,211,153,.5);color:var(--text);font-weight:700;font-size:.92rem;padding:13px 22px;border-radius:999px;box-shadow:var(--shadow);z-index:99;transition:.35s;opacity:0}
.toast.show{transform:translate(-50%,0);opacity:1}
.notfound{text-align:center;padding:100px 0}
.notfound .big{font-size:5.4rem;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.search-form{display:flex;gap:10px;max-width:520px;margin:26px auto 0}
.search-form input{flex:1}

@media(max-width:960px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .grid-3{grid-template-columns:1fr}
}
@media(max-width:720px){
  .main-nav{position:fixed;inset:64px 4% auto 4%;background:#0d1730;border:1px solid var(--line-2);border-radius:18px;padding:14px;flex-direction:column;align-items:stretch;display:none;box-shadow:var(--shadow)}
  .main-nav.open{display:flex}
  .main-nav ul{flex-direction:column}
  .main-nav a{display:block}
  .main-nav .btn{justify-content:center;margin-top:8px}
  .nav-toggle{display:grid;place-items:center}
  .hero{padding:56px 0 44px}
  .section{padding:46px 0}
  .grid-2{grid-template-columns:1fr}
  .ws-body{padding:19px}
  .cta-band{padding:38px 22px}
}

/* ============ v1.0.1 fixes (QA pass) ============ */
section[id],#workspace,#tools,#faq,#why{scroll-margin-top:96px}
.tool-search input[type="text"]{padding:17px 24px 17px 56px;border-radius:999px}
.tool-search svg{pointer-events:none;z-index:2}