/* all-ai.tools — simple monochrome: black / grey / white.
   Whole palette is these 6 vars; swap them to invert to a dark theme. */
:root{
  --bg:#ffffff;      /* page            */
  --panel:#f5f5f5;   /* cards / bars    */
  --line:#e0e0e0;    /* borders         */
  --txt:#111111;     /* text (near-black)*/
  --muted:#767676;   /* secondary grey  */
  --ink:#111111;     /* buttons / accents (black) */
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--txt);font:15px/1.5 -apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}
a{color:var(--txt);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:1100px;margin:0 auto;padding:0 20px}
h1{font-size:1.8rem}h2{margin-top:2rem;border-bottom:1px solid var(--line);padding-bottom:.4rem}
.muted,.detail-shot figcaption{color:var(--muted);font-size:.85rem}

/* header */
.site-header{background:var(--panel);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;gap:18px;padding:12px 20px}
.brand{font-weight:800;font-size:1.25rem;color:var(--txt);display:flex;align-items:center;gap:7px}
.brand:hover{text-decoration:none}          /* never underline the logo */
.brand .bot{font-size:1.3rem;line-height:1}
.brand span{color:var(--muted)}
.brand.small{font-size:1.05rem}
.search{flex:1}
.search input{width:100%;padding:9px 12px;border-radius:8px;border:1px solid var(--line);background:var(--bg);color:var(--txt)}
.top-nav{display:flex;gap:14px}.top-nav a{color:var(--muted)}.top-nav a:hover{color:var(--txt)}
.hamburger{display:none}   /* mobile only */
.nav-toggle{display:none}
.cat-bar{display:flex;gap:14px;flex-wrap:wrap;padding-bottom:12px;font-size:.85rem}
.cat-bar a{color:var(--muted)}.cat-bar a:hover{color:var(--txt)}

/* flashes — greyscale, differentiated by border weight */
.flash{padding:10px 14px;border-radius:8px;margin:14px 0;border:1px solid var(--line);background:var(--panel)}
.flash-success{border-left:4px solid var(--ink)}
.flash-danger{border-left:4px solid var(--ink);font-weight:600}
.flash-warning{border-left:4px solid var(--muted)}

/* hero */
.hero{padding:36px 0}.hero h1{font-size:2.2rem;margin:0 0 6px}.hero p{color:var(--muted)}

/* grid + cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px;margin:16px 0}
.tool-card{background:var(--bg);border:1px solid var(--line);border-radius:12px;overflow:hidden;display:flex;flex-direction:column;transition:border-color .15s}
.tool-card:hover{border-color:var(--ink)}
.tool-card .shot{position:relative;display:block;aspect-ratio:16/10;background:var(--panel)}
.tool-card .shot img{width:100%;height:100%;object-fit:cover;display:block}
.shot-date{position:absolute;bottom:6px;right:6px;background:rgba(0,0,0,.78);color:#fff;font-size:.72rem;padding:2px 6px;border-radius:5px}
.shot-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#efefef,#e2e2e2)}
.shot-placeholder span{font-size:2rem;font-weight:800;color:#fff;width:64px;height:64px;border-radius:14px;background:var(--ink);display:flex;align-items:center;justify-content:center}
.tool-body{padding:12px}.tool-body h3{margin:.3rem 0}.tagline{color:var(--muted);font-size:.9rem;margin:.2rem 0}
.meta{display:flex;gap:12px;flex-wrap:wrap;font-size:.8rem;color:var(--muted);margin-top:8px}

/* badges — monochrome: sponsored=solid black, featured=outlined, partner=grey */
.badges{display:flex;gap:6px;flex-wrap:wrap;min-height:20px}
.badge{font-size:.7rem;padding:2px 8px;border-radius:20px;font-weight:600;border:1px solid var(--ink)}
.badge.sponsored{background:var(--ink);color:#fff}
.badge.featured{background:transparent;color:var(--ink)}
.badge.backlink{background:transparent;color:var(--muted);border-color:var(--line)}

/* detail */
.detail-head{display:grid;grid-template-columns:1.2fr 1fr;gap:24px;align-items:start;margin-top:16px}
.detail-shot img{width:100%;border-radius:12px;border:1px solid var(--line)}
.visit{display:inline-block;background:var(--ink);color:#fff;padding:9px 16px;border-radius:8px;font-weight:600;margin:8px 0}
.visit:hover{text-decoration:none;opacity:.85}
.vote-form{display:flex;gap:8px;margin:10px 0}
.vote-form button,.promote button{cursor:pointer;background:var(--bg);border:1px solid var(--line);color:var(--txt);padding:8px 12px;border-radius:8px}
.vote-form button:hover,.promote button:hover{border-color:var(--ink)}
.promote{display:flex;gap:10px;margin-top:10px}
.description{margin:24px 0;white-space:pre-wrap}
.review{border-top:1px solid var(--line);padding:12px 0}.stars{color:var(--ink)}

/* forms */
.stacked{display:flex;flex-direction:column;gap:12px;max-width:640px}.stacked.narrow{max-width:380px}
.stacked label{display:flex;flex-direction:column;gap:4px;font-size:.9rem}
input,select,textarea{padding:9px 11px;border-radius:8px;border:1px solid var(--line);background:var(--bg);color:var(--txt);font:inherit}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--ink)}
button{cursor:pointer}
.stacked button,.review-form button{background:var(--ink);color:#fff;border:0;padding:11px;border-radius:8px;font-weight:600}
.stacked button:hover,.review-form button:hover{opacity:.85}
.review-form{display:flex;flex-direction:column;gap:8px;max-width:640px;margin-bottom:16px}
.oauth-btn{display:inline-flex;align-items:center;gap:10px;max-width:380px;width:100%;justify-content:center;border:1px solid var(--line);border-radius:8px;padding:10px;font-weight:600;color:var(--txt);background:var(--bg)}
.oauth-btn:hover{border-color:var(--ink);text-decoration:none}
.oauth-btn .g{font-weight:800;color:#fff;background:var(--ink);width:20px;height:20px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:.8rem}
.or{max-width:380px;text-align:center;color:var(--muted);margin:12px 0;font-size:.85rem}

/* admin */
.stats{display:flex;gap:16px;flex-wrap:wrap;margin:16px 0}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px 22px;text-align:center;color:var(--txt);min-width:110px}
.stat b{display:block;font-size:1.6rem}.stat span{color:var(--muted);font-size:.8rem}
.queue-item{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:16px;margin:12px 0}
.queue-actions{display:flex;gap:12px;margin-top:10px}.queue-actions form{display:flex;gap:6px}
button.ok{background:var(--ink);color:#fff;border:0;padding:9px 16px;border-radius:8px}
button.danger{background:var(--bg);color:var(--ink);border:1px solid var(--ink);padding:9px 16px;border-radius:8px}

.pagination{display:flex;gap:6px;margin:20px 0}
.pagination a{padding:6px 11px;border:1px solid var(--line);border-radius:6px;color:var(--txt)}
.pagination a.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.empty{color:var(--muted)}

/* homepage category sections */
.cat-section{margin-top:34px}
.cat-section-head{display:flex;align-items:baseline;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:.4rem;margin-top:2rem}
.cat-section-head h2{border:0;margin:0}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 4px}
.chip{font-size:.8rem;padding:5px 11px;border:1px solid var(--line);border-radius:20px;color:var(--muted);background:var(--panel)}
.chip:hover{border-color:var(--ink);color:var(--txt);text-decoration:none}

/* pillar / prose / articles */
.crumbs{margin:14px 0 4px;font-size:.85rem}
.pillar{max-width:820px}
.pillar h1{margin-bottom:.3rem}
.lead{font-size:1.1rem;color:#333;line-height:1.6}
.prose{margin-top:28px}
.prose h2{font-size:1.35rem;margin-top:1.8rem}
.prose p,.prose li{color:#2a2a2a}
.prose ul{padding-left:1.2rem}.prose li{margin:.3rem 0}
.link-list{list-style:none;padding:0}.link-list li{border-top:1px solid var(--line);padding:10px 0}
.faq details{border:1px solid var(--line);border-radius:8px;padding:10px 14px;margin:8px 0;background:var(--panel)}
.faq summary{cursor:pointer;font-weight:600}
.faq p{margin:.6rem 0 0;color:#333}

.home-prose{margin-top:48px;border-top:1px solid var(--line);padding-top:24px;max-width:820px}

/* blog / guides list */
.post-list{max-width:820px}
.post-item{border-bottom:1px solid var(--line);padding:20px 0}
.post-item h2{border:0;margin:0 0 .2rem}

/* footer */
.site-footer{margin-top:48px;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem;padding:24px 0 40px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}
.footer-grid h4{margin:0 0 8px;color:var(--txt);font-size:.9rem}
.footer-grid a{display:block;color:var(--muted);padding:3px 0}
.footer-grid a:hover{color:var(--txt)}

@media(max-width:760px){
  /* header: row1 = brand + hamburger, row2 = full-width search, menu drops below when tapped */
  .site-header .wrap{flex-wrap:wrap;gap:10px 12px;padding:10px 16px}
  .brand{order:1;flex:0 0 auto;font-size:1.2rem}
  .hamburger{display:flex;order:2;margin-left:auto;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;padding:10px;cursor:pointer;border:1px solid var(--line);border-radius:8px}
  .hamburger span{display:block;width:100%;height:2px;background:var(--txt);border-radius:2px}
  .search{order:3;flex:1 1 100%}
  .top-nav{display:none;order:4;flex:1 1 100%;flex-direction:column;gap:0;margin-top:2px}
  .nav-toggle:checked ~ .top-nav{display:flex}
  .top-nav a{padding:13px 4px;border-top:1px solid var(--line);font-size:1rem;color:var(--txt)}
  /* selector must out-specify `.site-header .wrap` above, which also matches `.cat-bar.wrap` */
  .site-header .cat-bar{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;gap:16px;padding:2px 16px 12px;scrollbar-width:none}
  .site-header .cat-bar::-webkit-scrollbar{display:none}
  .site-header .cat-bar a{white-space:nowrap}

  .detail-head{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px}
  .hero{padding:24px 0}.hero h1{font-size:1.7rem}
  .promote{flex-direction:column}
  .pagination{flex-wrap:wrap}
}
@media(max-width:420px){
  .top-nav{gap:11px;font-size:.85rem}
  .grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr}
  .stat{flex:1 1 40%}
}