/*
Theme Name: TopSaiTool
Theme URI: https://topsaitool.com/
Author: TopSaiTool
Author URI: https://topsaitool.com/
Description: Custom theme for TopSaiTool — the curated AI tools directory and daily AI news desk.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.8
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: topsaitool
Tags: directory, ai, tools, news, responsive
*/

/* ============ Design tokens (approved mockup) ============ */
:root{
  --navy:#0a1628;
  --navy2:#0b1c33;
  --navy3:#102545;
  --teal:#14b8a6;
  --teal-dark:#0d9488;
  --teal-light:#ccfbf1;
  --bg:#ffffff;
  --bg-soft:#f7f9fc;
  --bg-mute:#eef2f7;
  --ink:#0f172a;
  --ink-2:#334155;
  --muted:#64748b;
  --line:#e2e8f0;
  --amber:#f59e0b;
  --amber-soft:#fef3c7;
  --card-shadow:0 1px 2px rgba(15,23,42,.04),0 8px 24px -12px rgba(15,23,42,.12);
  --card-shadow-hover:0 2px 4px rgba(15,23,42,.06),0 20px 40px -16px rgba(15,23,42,.22);
  --radius:16px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Inter",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;line-height:1.55}
h1,h2,h3,h4{font-family:"Sora","Inter",system-ui,sans-serif;margin:0;line-height:1.15;letter-spacing:-.02em}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}
img{max-width:100%;height:auto}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.sr-only,.screen-reader-text{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;padding:0;margin:-1px}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(10,22,40,.96);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.08);color:#fff}
body.admin-bar .site-header{top:32px}
@media (max-width:782px){body.admin-bar .site-header{top:46px}}
.header-inner{display:flex;align-items:center;gap:28px;height:68px;position:relative}
.logo{font-family:"Sora",sans-serif;font-weight:800;font-size:1.35rem;letter-spacing:-.03em;white-space:nowrap;display:flex;align-items:center;gap:9px;color:#fff}
.logo-mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,#14b8a6,#0ea5a4);display:grid;place-items:center;font-size:1rem;font-weight:800;color:#042f2e;box-shadow:0 4px 14px rgba(20,184,166,.45)}
.logo .sai{color:var(--teal)}
.logo-img{height:38px;width:auto;display:block}
@media (max-width:680px){.logo-img{height:32px}}
.main-nav{display:flex;gap:4px;margin-left:6px}
.main-nav a{padding:8px 13px;border-radius:8px;font-size:.92rem;font-weight:500;color:#cbd5e1;transition:.15s}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.08)}
.main-nav a.active,.main-nav .current-menu-item a,.main-nav .current_page_item a{color:#fff}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.icon-btn{width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.04);color:#e2e8f0;display:grid;place-items:center;cursor:pointer;transition:.15s}
.icon-btn:hover{background:rgba(255,255,255,.12);color:#fff}
.icon-btn svg{width:19px;height:19px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;border-radius:11px;padding:11px 18px;font-size:.92rem;cursor:pointer;border:0;transition:.18s;white-space:nowrap}
.btn-teal{background:var(--teal);color:#042f2e;box-shadow:0 6px 18px -6px rgba(20,184,166,.6)}
.btn-teal:hover{background:#2dd4bf;transform:translateY(-1px)}
.btn .free{font-size:.68rem;background:#042f2e;color:#5eead4;padding:2px 6px;border-radius:99px;font-weight:700;letter-spacing:.04em}
.burger{display:none}

/* ---------- Hero ---------- */
.hero{background:radial-gradient(900px 420px at 18% -10%,rgba(20,184,166,.28),transparent 60%),radial-gradient(800px 400px at 88% 0%,rgba(59,130,246,.22),transparent 55%),linear-gradient(180deg,var(--navy2),var(--navy));color:#fff;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:auto -10% -55% -10%;height:60%;background:radial-gradient(closest-side,rgba(20,184,166,.14),transparent);pointer-events:none}
.hero-inner{position:relative;z-index:1;padding:72px 0 64px;text-align:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(20,184,166,.12);border:1px solid rgba(45,212,191,.35);color:#5eead4;padding:6px 14px;border-radius:99px;font-size:.8rem;font-weight:600}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:#2dd4bf;box-shadow:0 0 0 4px rgba(45,212,191,.2)}
.hero h1{font-size:clamp(2.2rem,5.4vw,3.6rem);font-weight:800;margin:20px auto 14px;max-width:760px}
.hero h1 .accent{color:var(--teal)}
.hero p.sub{color:#b6c4d8;font-size:1.08rem;max-width:620px;margin:0 auto 32px}
.hero-search{max-width:680px;margin:0 auto;background:#fff;border-radius:16px;padding:6px;display:flex;gap:6px;box-shadow:0 24px 50px -18px rgba(0,0,0,.55);text-align:left}
.hero-search .field{flex:1;display:flex;align-items:center;gap:10px;padding:0 6px 0 14px;min-width:0}
.hero-search svg{width:20px;height:20px;color:#94a3b8;flex:none}
.hero-search input{flex:1;border:0;outline:0;font:inherit;font-size:1rem;color:var(--ink);background:transparent;min-width:0}
.hero-search input::placeholder{color:#94a3b8}
.hero-search .btn{padding:13px 26px;border-radius:11px;font-size:1rem}
.popular{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:18px;align-items:center}
.popular span.lbl{color:#8fa3bd;font-size:.85rem;margin-right:2px}
.chip{border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.05);color:#dbe7f5;padding:6px 13px;border-radius:99px;font-size:.84rem;font-weight:500;transition:.15s}
.chip:hover{border-color:rgba(45,212,191,.6);color:#5eead4;background:rgba(20,184,166,.1)}
.stats{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:38px}
.stat{display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);padding:10px 18px;border-radius:12px}
.stat b{font-family:"Sora",sans-serif;font-size:1.05rem}
.stat span{color:#9db1c9;font-size:.85rem}
.stat .ic{width:30px;height:30px;border-radius:8px;background:rgba(20,184,166,.18);color:#2dd4bf;display:grid;place-items:center;font-weight:800;font-size:.8rem;font-family:"Sora",sans-serif}

/* ---------- Sections ---------- */
section.block{padding:64px 0}
section.block.alt{background:var(--bg-soft)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap}
.sec-head h2{font-size:1.7rem;font-weight:700}
.sec-head p{color:var(--muted);margin:6px 0 0;max-width:560px}
.sec-head .viewall{font-weight:600;color:var(--teal-dark);font-size:.93rem;display:inline-flex;gap:6px;align-items:center}
.sec-head .viewall:hover{color:var(--teal)}
.kicker{display:inline-block;font-size:.74rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--teal-dark);margin-bottom:8px}
.notice-empty{background:var(--bg-soft);border:1px dashed var(--line);border-radius:var(--radius);padding:28px;text-align:center;color:var(--muted);font-size:.94rem}

/* ---------- Tool cards ---------- */
.scroll-row{display:grid;grid-auto-flow:column;grid-auto-columns:272px;gap:16px;overflow-x:auto;padding:4px 4px 18px;scroll-snap-type:x mandatory;scrollbar-width:thin}
.scroll-row>*{scroll-snap-align:start}
.tool-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--card-shadow);transition:.2s;position:relative;display:flex;flex-direction:column;gap:10px}
.tool-card:hover{transform:translateY(-4px);box-shadow:var(--card-shadow-hover);border-color:#cbd5e1}
.tool-top{display:flex;align-items:flex-start;gap:12px}
.badge-logo{width:48px;height:48px;border-radius:13px;display:grid;place-items:center;font-family:"Sora",sans-serif;font-weight:800;font-size:1.25rem;flex:none}
.b-green{background:#dcfce7;color:#15803d}.b-violet{background:#ede9fe;color:#6d28d9}.b-amber{background:#fef3c7;color:#b45309}.b-sky{background:#e0f2fe;color:#0369a1}.b-rose{background:#ffe4e6;color:#be123c}.b-teal{background:#ccfbf1;color:#0f766e}.b-indigo{background:#e0e7ff;color:#4338ca}.b-orange{background:#ffedd5;color:#c2410c}.b-lime{background:#ecfccb;color:#4d7c0f}.b-fuchsia{background:#fae8ff;color:#a21caf}
.tool-name{font-weight:700;font-size:1.02rem;line-height:1.25}
.tool-name a:hover{color:var(--teal-dark)}
.tool-cat{font-size:.8rem;color:var(--muted)}
.tool-tag{color:var(--ink-2);font-size:.9rem;margin:0;flex:1}
.tool-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:2px}
.tag{font-size:.74rem;font-weight:600;background:var(--bg-mute);color:var(--ink-2);padding:4px 9px;border-radius:99px}
.price-pill{font-size:.74rem;font-weight:700;padding:4px 9px;border-radius:99px}
.price-free{background:#dcfce7;color:#166534}
.price-freemium{background:#fef9c3;color:#854d0e}
.price-paid{background:#fee2e2;color:#991b1b}
.visit{margin-left:auto;font-size:.82rem;font-weight:600;color:var(--teal-dark)}
.visit:hover{color:var(--teal)}
.ribbon{position:absolute;top:14px;right:-6px;background:var(--teal);color:#042f2e;font-size:.68rem;font-weight:800;letter-spacing:.06em;padding:4px 10px 4px 8px;border-radius:6px 0 0 6px;box-shadow:0 4px 10px rgba(20,184,166,.4);text-transform:uppercase}
.grid-tools{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}

/* ---------- Categories ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.cat-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;display:flex;align-items:center;gap:14px;box-shadow:var(--card-shadow);transition:.18s}
.cat-card:hover{transform:translateY(-3px);box-shadow:var(--card-shadow-hover);border-color:#99f6e4}
.cat-ic{width:46px;height:46px;border-radius:12px;background:linear-gradient(135deg,#f0fdfa,#ccfbf1);border:1px solid #99f6e4;color:var(--teal-dark);display:grid;place-items:center;font-family:"Sora",sans-serif;font-weight:800;font-size:1.05rem;flex:none}
.cat-card h3{font-size:.98rem;font-weight:600;font-family:"Inter",sans-serif;letter-spacing:-.01em}
.cat-card p{margin:2px 0 0;color:var(--muted);font-size:.82rem}
.cat-arrow{margin-left:auto;color:#cbd5e1;font-weight:700}
/* Vertical category cards: icon on top, 2-4 per row */
.cat-card.cat-v{flex-direction:column;text-align:center;padding:22px 10px;gap:0;align-items:center;justify-content:flex-start;background:linear-gradient(135deg,#f0fdfa 0%,#ecfdf5 100%);border:1px solid #a7f3d0}
.cat-card.cat-v:hover{border-color:#5eead4}
.cat-card.cat-v .cat-ic{margin:0 0 12px;width:54px;height:54px;font-size:1.35rem;background:#fff;border:1px solid #99f6e4;box-shadow:0 4px 10px rgba(20,184,166,.12)}
.cat-card.cat-v .cat-ic svg{width:26px;height:26px}
.cat-card.cat-v h3{font-size:.92rem;overflow-wrap:break-word;max-width:100%;line-height:1.3}
.cat-card.cat-v p{font-size:.78rem}

/* ---------- News ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--card-shadow);transition:.2s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--card-shadow-hover)}
.news-media{height:150px;position:relative;display:flex;align-items:flex-end;padding:14px;overflow:hidden}
.news-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.nm-1{background:linear-gradient(135deg,#0b1c33,#134e4a)}
.nm-2{background:linear-gradient(135deg,#1e1b4b,#0b1c33)}
.nm-3{background:linear-gradient(135deg,#082f49,#0b1c33)}
.news-media .glyph{position:absolute;top:14px;right:16px;font-family:"Sora",sans-serif;font-weight:800;font-size:2.4rem;color:rgba(255,255,255,.14)}
.news-tag{position:relative;font-size:.72rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;padding:5px 10px;border-radius:99px;background:rgba(20,184,166,.92);color:#042f2e}
.news-body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}
.news-date{font-size:.8rem;color:var(--muted);font-weight:500}
.news-body h3{font-size:1.08rem;font-weight:700;line-height:1.35}
.news-body h3 a:hover{color:var(--teal-dark)}
.news-body p{margin:0;color:var(--muted);font-size:.9rem;flex:1}
.readmore{font-weight:600;color:var(--teal-dark);font-size:.88rem}
.readmore:hover{color:var(--teal)}

/* ---------- Comparisons ---------- */
.vs-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.vs-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--card-shadow);transition:.2s}
.vs-card:hover{transform:translateY(-4px);box-shadow:var(--card-shadow-hover)}
.vs-face{display:flex;align-items:center;justify-content:center;gap:14px;margin-bottom:16px}
.vs-face .vs-side:first-of-type{order:1}
.vs-face .vs-badge{order:2}
.vs-face .vs-side:last-of-type{order:3}
.vs-side{text-align:center;width:96px}
.vs-side .badge-logo{margin:0 auto 8px;width:52px;height:52px;font-size:1.35rem}
.vs-side .nm{font-weight:700;font-size:.9rem;line-height:1.2}
.vs-side .sc{font-size:.78rem;color:var(--muted)}
.vs-side .sc b{color:var(--amber)}
.vs-badge{width:38px;height:38px;border-radius:50%;background:var(--navy);color:#fff;display:grid;place-items:center;font-family:"Sora",sans-serif;font-weight:800;font-size:.78rem;border:3px solid var(--teal);flex:none;box-shadow:0 6px 14px rgba(10,22,40,.3)}
.vs-meta{text-align:center;color:var(--muted);font-size:.86rem;margin:0 0 14px}
.vs-link{display:block;text-align:center;font-weight:600;color:var(--teal-dark);background:#f0fdfa;border:1px solid #99f6e4;padding:10px;border-radius:10px;transition:.15s}
.vs-link:hover{background:var(--teal);color:#042f2e}

/* ---------- Newsletter ---------- */
.newsletter{background:linear-gradient(120deg,var(--navy2),#0d2b3f 60%,#083f3a);color:#fff;border-radius:22px;padding:44px;display:grid;grid-template-columns:1.2fr 1fr;gap:32px;align-items:center;position:relative;overflow:hidden}
.newsletter::before{content:"";position:absolute;width:340px;height:340px;border-radius:50%;background:radial-gradient(closest-side,rgba(20,184,166,.35),transparent);top:-140px;right:-80px}
.newsletter h2{font-size:1.65rem;margin-bottom:8px;position:relative}
.newsletter p{color:#a9bdd3;margin:0;position:relative;max-width:440px}
.news-form{position:relative;display:flex;gap:8px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);padding:6px;border-radius:14px}
.news-form input{flex:1;background:transparent;border:0;outline:0;color:#fff;font:inherit;padding:0 12px;min-width:0}
.news-form input::placeholder{color:#7d93ad}
.news-note{font-size:.78rem;color:#7d93ad;margin-top:10px;position:relative}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy);color:#cbd5e1;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1fr;gap:32px;padding:56px 0 40px}
.footer-brand .logo{margin-bottom:12px}
.footer-brand p{color:#8fa3bd;font-size:.9rem;margin:0;max-width:280px}
.footer-col h4{color:#fff;font-size:.95rem;margin:0 0 14px;font-family:"Inter",sans-serif;letter-spacing:0}
.footer-col li{margin-bottom:9px}
.footer-col a{color:#9db1c9;font-size:.9rem}
.footer-col a:hover{color:#5eead4}
.footer-bottom{border-top:1px solid rgba(255,255,255,.09);padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.86rem;color:#7d93ad}

/* ---------- Generic inner pages (index.php) ---------- */
.page-hero{background:linear-gradient(180deg,var(--navy2),var(--navy));color:#fff;padding:52px 0}
.page-hero h1{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:800}
.page-hero p{color:#b6c4d8;margin:10px 0 0;max-width:640px}
.archive-wrap{padding:48px 0 64px}
.post-list{display:grid;gap:18px}
.post-row{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--card-shadow);display:flex;gap:20px;align-items:flex-start}
.post-row .news-media{width:220px;flex:none;height:130px;border-radius:10px;padding:10px}
.post-row h2{font-size:1.25rem;margin:0 0 8px}
.post-row h2 a:hover{color:var(--teal-dark)}
.post-row .news-date{margin-bottom:6px;display:block}
.post-row p.ex{color:var(--muted);margin:0 0 10px}
.article{background:#fff;border:1px solid var(--line);border-radius:18px;padding:36px;box-shadow:var(--card-shadow)}
.article .entry-content{color:var(--ink-2);line-height:1.75}
.article .entry-content p{margin:0 0 1.1em}
.pagination{margin-top:32px;display:flex;gap:8px;flex-wrap:wrap}
.pagination .page-numbers{border:1px solid var(--line);border-radius:9px;padding:8px 14px;font-weight:600;color:var(--ink-2);background:#fff}
.pagination .page-numbers.current{background:var(--teal);border-color:var(--teal);color:#042f2e}
.pagination a.page-numbers:hover{border-color:var(--teal);color:var(--teal-dark)}

/* ---------- Responsive ---------- */
/* Fix grid/flex blowout: grid + flex children must shrink below min-content,
   otherwise long category names (e.g. "Audio/Voice") force tracks wider than
   the viewport and the whole page becomes horizontally scrollable. */
.cat-grid>*,.grid-tools>*,.news-grid>*,.vs-grid>*{min-width:0}
.cat-card>span{min-width:0}
html,body{overflow-x:clip}
@supports not (overflow:clip){html,body{overflow-x:hidden}}
@media (max-width:1020px){
  .cat-grid{grid-template-columns:repeat(3,1fr)}
  .grid-tools,.news-grid,.vs-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr 1fr}
  .main-nav{display:none}
  .main-nav.open{display:flex;position:absolute;top:100%;left:0;right:0;background:var(--navy);flex-direction:column;padding:10px 16px 16px;margin:0;gap:2px;border-bottom:1px solid rgba(255,255,255,.08)}
  .main-nav.open a{padding:11px 10px}
  .burger{display:grid}
}
@media (max-width:680px){
  .wrap{padding:0 16px}
  section.block{padding:44px 0}
  .header-inner{gap:12px;height:60px}
  .header-actions .btn{display:none}
  .hero-inner{padding:48px 0 44px}
  .hero-search{flex-direction:column;padding:8px}
  .hero-search .field{padding:10px 8px}
  .hero-search .btn{width:100%}
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .grid-tools,.news-grid,.vs-grid{grid-template-columns:1fr}
  .scroll-row{grid-auto-columns:82%;margin:0 -16px;padding-left:16px;padding-right:16px}
  .newsletter{grid-template-columns:1fr;padding:28px 22px}
  .news-form{flex-direction:column}
  .news-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;padding:40px 0 28px}
  .sec-head h2{font-size:1.4rem}
  .stat{padding:8px 13px}
  .post-row{flex-direction:column}
  .post-row .news-media{width:100%}
}
@media (max-width:480px){
  /* Compact 2-up vertical cards fit fine at 375px */
  .cat-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .cat-card.cat-v{padding:16px 8px}
  .cat-card.cat-v .cat-ic{width:44px;height:44px;font-size:1.1rem;margin-bottom:8px}
  .cat-card.cat-v .cat-ic svg{width:22px;height:22px}
  .cat-card.cat-v h3{font-size:.82rem}
  .cat-card.cat-v p{font-size:.72rem}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;scroll-behavior:auto!important}
}