/* AI What's On — ad-free AI events directory. Light, friendly, welcoming. */
:root{
  --bg:#ffffff; --bg-2:#f6f7f9; --card:#ffffff; --card-2:#f1f3f7;
  --line:#e7e9ef; --line-2:#d9dde6;
  --fg:#1c2330; --muted:#586273; --faint:#8b94a4;
  --brand:#4f46e5; --brand-ink:#3b34c7;
  --accent:#2563eb; --accent-2:#0d9488;
  --free:#15a05a; --warm:#d97706; --watch:#c2620a;
  --shadow:0 1px 2px rgba(16,24,40,.04), 0 1px 3px rgba(16,24,40,.06);
  --shadow-md:0 4px 14px rgba(16,24,40,.08);
  --maxw:1080px; --radius:14px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);
  font:16px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img.flag{vertical-align:-2px;border-radius:2px;box-shadow:0 0 0 1px rgba(16,24,40,.1)}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 18px}
.muted{color:var(--muted)}
.accent{color:var(--accent-2)}
h1,h2,h3,h4{line-height:1.2;margin:0 0 .4em;color:var(--fg)}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:#fff;color:#000;padding:6px;z-index:99}

/* Header */
.site-header{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:13px;padding-bottom:11px}
.brand{display:inline-flex;align-items:center;gap:9px;font-weight:800;color:var(--fg);font-size:19px;letter-spacing:-.01em}
.brand:hover{text-decoration:none}
.brand-mark{color:var(--brand);font-size:21px}
.logo-mark{display:block;vertical-align:middle}
.brand .logo-mark{margin-right:-2px}
.brand-tld{color:var(--accent-2);font-weight:700}
.mainnav{display:flex;gap:20px;align-items:center;flex-wrap:wrap}
.mainnav a{color:var(--muted);font-size:14px;font-weight:500}
.mainnav a:hover{color:var(--fg);text-decoration:none}
.mainnav .cta{color:#fff;background:var(--brand);padding:7px 14px;border-radius:9px;font-weight:600;box-shadow:var(--shadow)}
.mainnav .cta:hover{background:var(--brand-ink)}
.searchbar{display:flex;gap:8px;padding-bottom:13px}
.searchbar input{flex:1;background:var(--card);border:1px solid var(--line-2);color:var(--fg);padding:11px 15px;border-radius:11px;font-size:14px}
.searchbar input::placeholder{color:var(--faint)}
.searchbar input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(79,70,229,.12)}
.searchbar button{background:var(--fg);border:1px solid var(--fg);color:#fff;padding:0 20px;border-radius:11px;cursor:pointer;font-weight:600}
.searchbar button:hover{background:#000}

main{padding:28px 18px 64px}

/* Hero */
.hero{padding:24px 0 10px}
.hero h1{font-size:clamp(32px,5vw,50px);letter-spacing:-.025em;margin-bottom:.15em}
.hero .lede{color:var(--muted);font-size:18px;max-width:62ch}
.stat-row{display:flex;flex-wrap:wrap;gap:30px;margin-top:24px}
.stat{display:flex;flex-direction:column}
.stat b{font-size:27px;color:var(--brand)}
.stat span{font-size:13px;color:var(--faint)}

/* Blocks */
.block{margin-top:40px}
.block-h{font-size:13px;text-transform:uppercase;letter-spacing:.09em;color:var(--faint);border-bottom:1px solid var(--line);padding-bottom:9px;margin-bottom:18px}
.block-head{display:flex;justify-content:space-between;align-items:flex-end;border-bottom:1px solid var(--line);margin-bottom:18px}
.block-head .block-h{border:0;margin-bottom:9px}

/* Segmented toggle */
.seg{display:inline-flex;background:var(--card-2);border:1px solid var(--line);border-radius:10px;overflow:hidden;padding:2px}
.seg a{padding:6px 13px;font-size:13px;color:var(--muted);border-radius:8px}
.seg a:hover{color:var(--fg);text-decoration:none}
.seg a.on{background:#fff;color:var(--fg);box-shadow:var(--shadow);font-weight:600}

/* Featured */
.feature-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.feature-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;color:var(--fg);box-shadow:var(--shadow);transition:.16s}
.feature-card:hover{border-color:var(--brand);text-decoration:none;transform:translateY(-3px);box-shadow:var(--shadow-md)}
.feature-img{display:block;height:124px;background-size:cover;background-position:center;background-color:var(--card-2)}
.feature-img.is-favicon{display:grid;place-items:center;background:linear-gradient(135deg,#f8fafc,#eef6f4)}
.feature-img.is-favicon img{width:48px;height:48px;object-fit:contain;border-radius:11px;box-shadow:0 0 0 1px rgba(16,24,40,.09)}
.feature-meta{padding:12px 14px;display:flex;flex-direction:column;gap:3px}
.feature-date{font-size:12px;color:var(--accent-2);font-weight:700}
.feature-title{font-weight:700;font-size:14px;line-height:1.3}
.feature-where{font-size:12px}

/* Hub */
.hub-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:28px}
.hub-col h3{font-size:13px;color:var(--muted);margin:0 0 11px;text-transform:uppercase;letter-spacing:.05em}
.hub-col h3:not(:first-child){margin-top:24px}
.chips{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.chips a{display:inline-flex;align-items:center;gap:6px;background:var(--card);border:1px solid var(--line-2);border-radius:20px;padding:6px 12px;font-size:13px;color:var(--fg);box-shadow:var(--shadow)}
.chips a:hover{border-color:var(--brand);color:var(--brand-ink);text-decoration:none}
.chips .cnt{color:var(--faint);font-size:11px}

/* Event list (dev.events-style rows) */
.ev-list{display:flex;flex-direction:column}
.ev-card{display:flex;gap:16px;padding:15px 8px;border-bottom:1px solid var(--line);align-items:baseline;border-radius:8px}
.ev-card:hover{background:var(--bg-2)}
.ev-date{flex:0 0 132px;display:flex;flex-direction:column;gap:3px}
.ev-cal{font-size:13px;font-weight:700;color:var(--accent-2);white-space:nowrap}
.ev-soon{font-size:11px;color:var(--warm);font-weight:700}
.ev-body{flex:1;min-width:0}
.ev-title{font-size:16px;font-weight:600;margin:0 0 2px;display:flex;align-items:baseline;gap:7px;flex-wrap:wrap}
.ev-title a{color:var(--fg)}
.ev-title a:hover{color:var(--brand-ink)}
.ev-ico{font-size:15px}
.ev-favicon{flex:0 0 20px;width:20px;height:20px;object-fit:contain;border-radius:5px;box-shadow:0 0 0 1px rgba(16,24,40,.08);align-self:center}
.ev-meta{margin:0;font-size:13.5px;color:var(--muted)}
.ev-meta a{color:var(--muted)}.ev-meta a:hover{color:var(--accent)}
.ev-kind{color:var(--brand);font-weight:600}

/* Badges */
.badge{display:inline-block;font-size:11px;padding:1px 8px;border-radius:7px;background:var(--card-2);border:1px solid var(--line-2);color:var(--muted);font-weight:600}
.badge-free{background:#e9f9f0;border-color:#bce9cf;color:var(--free)}
.badge-watch{background:#fdf2e3;border-color:#f6d9ad;color:var(--watch)}
.badge-online{background:#e8f3fd;border-color:#bcdcf6;color:var(--accent)}
.badge-hybrid,.badge-in-person{background:var(--card-2)}

/* Buttons */
.btn{display:inline-block;background:var(--card);border:1px solid var(--line-2);color:var(--fg);padding:10px 17px;border-radius:10px;font-size:14px;font-weight:600;cursor:pointer;box-shadow:var(--shadow)}
.btn:hover{border-color:var(--brand);color:var(--brand-ink);text-decoration:none}
.btn-primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn-primary:hover{background:var(--brand-ink);color:#fff}
.btn-ghost{background:transparent;box-shadow:none}
.btn-sm{padding:6px 11px;font-size:12.5px}
.more{margin-top:20px}

/* Filters / subhub */
.filters{display:flex;gap:12px;flex-wrap:wrap;margin:0 0 20px}
.subhub{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:0 0 20px;padding:13px;background:var(--bg-2);border:1px solid var(--line);border-radius:12px}
.subhub-label{color:var(--faint);font-size:13px}
.subhub a{font-size:13px;background:var(--card);border:1px solid var(--line-2);padding:5px 11px;border-radius:16px;color:var(--fg);box-shadow:var(--shadow)}
.subhub a:hover{border-color:var(--brand);text-decoration:none}
.subhub .cnt{color:var(--faint)}

/* Crumbs / heads */
.crumbs{font-size:13px;color:var(--faint);margin-bottom:14px;display:flex;gap:7px;flex-wrap:wrap}
.crumbs a{color:var(--muted)}
.crumbs span{color:var(--faint)}
.list-head{margin-bottom:20px}
.list-head h1{font-size:clamp(25px,4vw,36px);letter-spacing:-.015em}

/* Pager */
.pager{display:flex;justify-content:center;align-items:center;gap:18px;margin:30px 0}
.pager a{background:var(--card);border:1px solid var(--line-2);padding:9px 17px;border-radius:10px;color:var(--fg);box-shadow:var(--shadow)}
.pager a:hover{border-color:var(--brand);text-decoration:none}
.pager-info{color:var(--faint);font-size:13px}

/* Event detail */
.event-head{border-bottom:1px solid var(--line);padding-bottom:20px;margin-bottom:24px}
.event-kindrow{display:flex;gap:8px;align-items:center;margin-bottom:9px;flex-wrap:wrap}
.event-head h1{font-size:clamp(27px,4.5vw,42px);letter-spacing:-.015em}
.event-when{font-size:16px;margin:.4em 0 .2em}
.event-when .ev-soon{margin-left:8px}
.event-where{font-size:15px}
.event-where a{color:var(--muted)}.event-where a:hover{color:var(--accent)}
.event-cta{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.event-grid{display:grid;grid-template-columns:1fr 300px;gap:36px}
.event-summary{font-size:18px;color:var(--fg)}
.prose{color:#374151;line-height:1.7}
.prose h2,.prose h3{color:var(--fg);margin-top:1.3em}
.prose a{color:var(--accent)}
.event-section{margin-top:30px}
.event-section h2{font-size:18px;border-bottom:1px solid var(--line);padding-bottom:7px}
.speaker-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:9px}
.speaker-list .sp-name{font-weight:600;color:var(--accent)}
.speaker-list .role{font-size:12px;color:var(--faint);margin-left:6px}
.taglist{display:flex;flex-wrap:wrap;gap:8px}
.tag{font-size:13px;background:var(--card);border:1px solid var(--line-2);padding:5px 11px;border-radius:16px;color:var(--muted);box-shadow:var(--shadow)}
.tag:hover{border-color:var(--brand);color:var(--brand-ink);text-decoration:none}
.tag-topic{color:var(--fg)}
.event-side .factbox{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.factbox h3{font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--faint)}
.factbox dl{display:grid;grid-template-columns:auto 1fr;gap:8px 12px;margin:0 0 12px;font-size:14px}
.factbox dt{color:var(--faint)}
.factbox dd{margin:0;text-align:right}
.src{font-size:12px;margin-top:10px}

/* Topic + speaker grids */
.topic-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px}
.topic-card{display:flex;flex-direction:column;gap:5px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;color:var(--fg);box-shadow:var(--shadow);transition:.16s}
.topic-card:hover{border-color:var(--brand);text-decoration:none;transform:translateY(-3px);box-shadow:var(--shadow-md)}
.topic-ico{font-size:26px}
.topic-name{font-weight:700}
.topic-cnt{font-size:12px;color:var(--faint)}
.speaker-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.speaker-card{display:flex;align-items:center;gap:12px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:11px 14px;color:var(--fg);box-shadow:var(--shadow)}
.speaker-card:hover{border-color:var(--brand);text-decoration:none;transform:translateY(-2px)}
.sp-avatar{flex:0 0 40px;height:40px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--brand),var(--accent-2));color:#fff;font-weight:700;font-size:17px}
.sp-avatar.lg{flex-basis:66px;height:66px;font-size:27px}
.sp-info{flex:1;min-width:0;display:flex;flex-direction:column}
.sp-info .sp-name{font-weight:600}
.sp-info .muted{font-size:12.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sp-count{color:var(--brand);font-weight:700}
.profile-head{display:flex;gap:18px;align-items:center;margin-bottom:8px}

/* Notify */
.notify{background:linear-gradient(135deg,#eef2ff,#e6fbf7);border:1px solid var(--line);border-radius:18px;padding:26px}
.notify-inner{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.notify h2{margin:0 0 4px;font-size:22px}
.notify-form{display:flex;gap:8px}
.notify-form input[type=email]{background:#fff;border:1px solid var(--line-2);color:var(--fg);padding:11px 15px;border-radius:10px;min-width:240px}
.notify-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(79,70,229,.12)}
.notify-form button{background:var(--brand);color:#fff;border:0;padding:0 20px;border-radius:10px;font-weight:600;cursor:pointer}
.notify-form button:hover{background:var(--brand-ink)}
.notify .ok{color:var(--free);font-weight:700}
.hp{position:absolute;left:-9999px;width:1px;height:1px}

/* Forms */
.form{max-width:620px;display:flex;flex-direction:column;gap:16px}
.form label{display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:14px}
.form input,.form textarea{background:var(--card);border:1px solid var(--line-2);color:var(--fg);padding:11px 14px;border-radius:10px;font:inherit;font-weight:400}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(79,70,229,.12)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.err{color:#dc2626;font-weight:500;font-size:13px}
.search-big{display:flex;gap:8px;margin-bottom:22px}
.search-big input{flex:1;background:var(--card);border:1px solid var(--line-2);color:var(--fg);padding:13px 16px;border-radius:11px;font-size:16px}
.search-big input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(79,70,229,.12)}
.search-big button{background:var(--brand);color:#fff;border:0;padding:0 24px;border-radius:11px;font-weight:700;cursor:pointer}

/* Misc */
.empty{padding:44px 0;text-align:center;color:var(--muted)}
.empty-lg h1{font-size:66px;color:var(--line-2);margin:0}
.thanks{max-width:600px;padding:30px 0}
.thanks h1{font-size:30px}
.prose.narrow{max-width:72ch}
.prose.narrow h2{margin-top:1.5em;font-size:21px}

/* Footer */
.site-footer{border-top:1px solid var(--line);margin-top:44px;padding:38px 0 32px;background:var(--bg-2)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:28px}
.footer-grid h4{font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--faint);margin-bottom:10px}
.footer-grid a{display:block;color:var(--muted);font-size:14px;padding:2px 0}
.footer-grid a:hover{color:var(--accent)}
.footer-grid p{font-size:13.5px;color:var(--muted)}
.footer-base{margin-top:26px;padding-top:17px;border-top:1px solid var(--line);font-size:13px;color:var(--faint)}

@media(max-width:820px){
  .event-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .searchbar{display:none}
}
@media(max-width:560px){
  .ev-card{flex-direction:column;gap:4px}
  .ev-date{flex-basis:auto;flex-direction:row;gap:8px}
  .form-row{grid-template-columns:1fr}
  .notify-form input[type=email]{min-width:0;flex:1}
  .footer-grid{grid-template-columns:1fr}
  .mainnav{gap:13px;font-size:13px}
}

/* Share bar (every page) */
.sharebar{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin:36px 0 0;padding-top:20px;border-top:1px solid var(--line)}
.share-label{font-size:13px;font-weight:700;color:var(--faint);text-transform:uppercase;letter-spacing:.06em;margin-right:4px}
.share-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-width:34px;height:34px;padding:0 12px;
  background:var(--card);border:1px solid var(--line-2);border-radius:9px;color:var(--muted);font-size:13px;font-weight:600;cursor:pointer;box-shadow:var(--shadow)}
.share-btn:hover{border-color:var(--brand);color:var(--brand-ink);text-decoration:none;transform:translateY(-1px)}
.share-btn.x:hover{color:#000;border-color:#000}
.share-btn.li:hover{color:#0a66c2;border-color:#0a66c2}
.share-btn.fb:hover{color:#1877f2;border-color:#1877f2}
.share-btn.wa:hover{color:#25d366;border-color:#1faa52}
.share-btn.copy.copied{background:#e9f9f0;border-color:#bce9cf;color:var(--free)}
.share-btn.native{display:none}
@media(max-width:560px){.share-btn.wa,.share-btn.rd{display:none}.share-btn.native{display:inline-flex}}

/* Submit CTA (every browse/event page) */
.submit-cta{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  margin:34px 0 0;padding:18px 20px;background:linear-gradient(135deg,#eef2ff,#e6fbf7);
  border:1px solid var(--line);border-radius:14px}
.submit-cta strong{font-size:15px}
.submit-cta .muted{display:block;font-size:13px}
.footer-base .updated{color:var(--faint)}

/* Hero CTAs */
.hero-cta{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}
.hero-trust{margin-top:14px;font-size:14px}

/* Quick smart-filter chips (under search) */
.quickfilters{display:flex;gap:8px;flex-wrap:wrap;padding-bottom:13px}
.qf-chip{display:inline-flex;align-items:center;gap:6px;background:var(--card-2);border:1px solid var(--line);
  border-radius:20px;padding:6px 13px;font-size:13px;font-weight:600;color:var(--fg);white-space:nowrap}
.qf-chip:hover{background:#fff;border-color:var(--brand);color:var(--brand-ink);text-decoration:none;box-shadow:var(--shadow)}
.qf-ico{font-size:14px}
@media(max-width:820px){
  .quickfilters{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:10px;scrollbar-width:none}
  .quickfilters::-webkit-scrollbar{display:none}
}

/* When (time-range) filter row */
.when-filter{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 14px}
.when-chip{font-size:13px;font-weight:600;background:var(--card);border:1px solid var(--line-2);border-radius:18px;padding:5px 13px;color:var(--fg);box-shadow:var(--shadow)}
.when-chip:hover{border-color:var(--brand);color:var(--brand-ink);text-decoration:none}
.when-chip.on{background:var(--brand);color:#fff;border-color:var(--brand)}