:root{--ink:#0f1b2d;--muted:#5b6b80;--line:#e3e8ef;--bg:#f7f9fc;--card:#fff;--brand:#0b5fff;--brand-d:#0846c2;--hot:#d92d20;--warm:#e88a00;--cool:#2e7d4f;--r:10px}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
img,svg,video{max-width:100%;height:auto}pre{overflow-x:auto}fieldset{min-width:0}
body{margin:0;font:16px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);overflow-wrap:break-word}
a{color:var(--brand)}a:hover{color:var(--brand-d)}
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.hdr{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:60px;flex-wrap:wrap}
.logo{font-weight:800;font-size:20px;color:var(--ink);text-decoration:none;letter-spacing:-.3px}.logo-mark{margin-right:6px}
.nav{display:flex;gap:4px;flex-wrap:wrap}.nav a{color:var(--ink);text-decoration:none;padding:6px 10px;border-radius:8px;font-size:15px}
.nav a:hover{background:var(--bg)}.nav-cta{background:var(--ink);color:#fff!important}.nav-cta:hover{background:#24344d!important}
main{padding:28px 20px 56px}
h1{font-size:34px;line-height:1.15;letter-spacing:-.6px;margin:8px 0 10px}h2{font-size:21px;margin:32px 0 12px}
.lede{font-size:18px;color:var(--muted);max-width:760px}.muted{color:var(--muted)}
.hero{padding:6px 0 4px}.stats{font-size:14px;color:var(--muted)}
.filters{display:flex;gap:12px;flex-wrap:wrap;margin:18px 0;padding:12px;background:#fff;border:1px solid var(--line);border-radius:var(--r)}
.filters label{font-size:13px;color:var(--muted);display:flex;flex-direction:column;gap:4px}
.filters select{font:inherit;font-size:15px;padding:7px 10px;border:1px solid var(--line);border-radius:8px;background:#fff;min-width:150px;color:var(--ink)}
.deadlines{list-style:none;margin:0;padding:0;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.dl{display:grid;grid-template-columns:110px 1fr auto;gap:14px;align-items:center;padding:12px 16px;border-top:1px solid var(--line);border-left:4px solid var(--cool)}
.dl:first-child{border-top:0}.dl.u-hot{border-left-color:var(--hot)}.dl.u-warm{border-left-color:var(--warm)}.dl.past{opacity:.55;border-left-color:#aab4c3}
.dl-day{display:block;font-weight:700;font-size:16px}.dl-in{display:block;font-size:12.5px;color:var(--muted)}.u-hot .dl-in{color:var(--hot);font-weight:600}
.dl-label{font-weight:600}.dl-ev{font-size:14px;color:var(--muted);margin-top:2px}.dl-ev a{color:var(--ink)}
.dl-src{font-size:13px;white-space:nowrap}
.tag{display:inline-block;font-size:11.5px;font-weight:700;text-transform:uppercase;letter-spacing:.4px;padding:2px 7px;border-radius:5px;background:#eef2f8;color:#334}
.t-early_bird{background:#e6f4ea;color:#1e6b3a}.t-speaker_cfp{background:#e8efff;color:#1c45a6}.t-awards{background:#fff3d6;color:#8a5a00}.t-hotel_block{background:#f3e8ff;color:#6b2fa6}.t-registration_close{background:#fde8e7;color:#a2261b}
.cards{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px 16px}
.card h3{margin:2px 0 4px;font-size:17px;line-height:1.3}.card h3 a{color:var(--ink);text-decoration:none}.card h3 a:hover{color:var(--brand)}
.card-date{font-size:13px;font-weight:700;color:var(--brand)}.card-meta{font-size:13.5px;color:var(--muted)}.card-next{font-size:13.5px;margin-top:6px}
.tags{margin-top:8px;display:flex;flex-wrap:wrap;gap:5px}.topic{font-size:12px;padding:2px 8px;border-radius:99px;background:var(--bg);border:1px solid var(--line);color:var(--muted);text-decoration:none}
.badge{font-size:11px;padding:1px 6px;border-radius:5px;margin-left:4px;vertical-align:1px;font-weight:600}
.conf-confirmed{background:#e6f4ea;color:#1e6b3a}.conf-announced{background:#fff3d6;color:#8a5a00}.conf-estimated{background:#eef0f3;color:#555}
.signup{display:grid;grid-template-columns:1.2fr 1fr;gap:24px;align-items:center;background:var(--ink);color:#fff;border-radius:14px;padding:26px;margin:34px 0}
.signup h2{margin:0 0 6px;color:#fff}.signup p{margin:0;color:#c9d3e3}
.signup-form{display:flex;flex-wrap:wrap;gap:8px}.signup-form input{flex:1 1 200px;min-width:0;font:inherit;font-size:16px;padding:11px 12px;border-radius:8px;border:0}
.signup-form button,.btn{font:inherit;font-weight:700;background:var(--brand);color:#fff;border:0;border-radius:8px;padding:11px 16px;cursor:pointer;text-decoration:none;display:inline-block}
.btn-2{background:#fff;color:var(--ink);border:1px solid var(--line)}.fine{flex-basis:100%;font-size:12px;color:#93a1b8!important}
.more{font-weight:600}.crumbs{font-size:14px;color:var(--muted)}
.event .ev-sub{color:var(--muted);font-size:17px;margin-top:0}.ev-actions{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0 6px}
.facts{display:grid;grid-template-columns:170px 1fr;gap:8px 16px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:16px;margin:0}
.facts dt{color:var(--muted);font-size:14px}.facts dd{margin:0}
.note{background:#fffaf0;border:1px solid #f3e2bd;border-radius:8px;padding:10px 14px;font-size:14.5px}
.verified{font-size:14px;color:var(--muted);border-top:1px solid var(--line);padding-top:12px;margin-top:22px}
.index{columns:2;padding-left:18px}.index li{margin:4px 0}
.form{max-width:640px;display:flex;flex-direction:column;gap:12px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px}
.form label{display:flex;flex-direction:column;gap:4px;font-size:14px;font-weight:600;flex:1}.form input,.form select,.form textarea{font:inherit;font-weight:400;padding:9px 10px;border:1px solid var(--line);border-radius:8px}
.form .row{display:flex;gap:12px;flex-wrap:wrap}.form fieldset{border:1px solid var(--line);border-radius:8px;display:flex;flex-direction:column;gap:10px}
.tiers{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin:20px 0}
.tier{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px}.tier.hl{border:2px solid var(--brand)}.tier h3{margin:0}.price{font-size:24px;font-weight:800;margin:6px 0}
.tier ul{padding-left:18px;font-size:14.5px}.prose{max-width:720px}
.site-footer{border-top:1px solid var(--line);background:#fff;font-size:13.5px;color:var(--muted);padding:18px 0}
.sr{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

.signup-form button:hover{background:var(--brand-d)}.signup-form input:focus-visible,.signup-form button:focus-visible{outline:3px solid #8fb3ff;outline-offset:2px}.signup .fine a{color:#fff}
.soon{background:#eef4ff;border:1px solid #cfdcff;border-radius:8px;padding:10px 14px;margin:0 0 4px;font-size:15px}
fieldset.plain{border:0;padding:0;margin:0}fieldset:disabled input,fieldset:disabled select,fieldset:disabled textarea{background:#f4f6f9}fieldset:disabled .btn{opacity:.6;cursor:not-allowed}
.price.small{font-size:15px;font-weight:700;color:var(--brand)}

/* Wide content: tables scroll inside their own box on any screen. */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;max-width:100%}
table{border-collapse:collapse}

/* Newsletter confirmation pages (/subscribe/*) */
.notice{max-width:640px;margin:24px auto 8px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:32px 30px;text-align:center}
.notice h1{margin-top:12px;text-wrap:balance}.notice .lede{margin:0 auto 14px}.notice p{margin:0 auto 12px;max-width:520px}
.notice-mark{width:56px;height:56px;margin:0 auto;border-radius:50%;background:#e8efff;color:var(--brand);font-size:28px;line-height:56px;font-weight:700}
.notice-mark.ok{background:#e6f4ea;color:#1e6b3a}
.notice-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin:22px 0 18px}
.notice-fine{font-size:14px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;margin-top:6px!important}

/* ---------- Mobile (phones, ≤700px) ---------- */
@media (max-width:700px){
  .wrap{padding:0 16px}main{padding:18px 16px 48px}
  h1{font-size:27px}h2{font-size:20px;margin:28px 0 10px}.lede{font-size:17px}
  /* Header: no longer sticky (two rows ate ~15% of the screen); nav becomes an even 3×2 grid of 44px targets */
  .site-header{position:static}
  .hdr{gap:8px;padding:10px 16px 12px;min-height:0}
  .logo{display:inline-flex;align-items:center;min-height:44px}
  .nav{width:100%;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}
  .nav a{display:flex;align-items:center;justify-content:center;text-align:center;min-height:44px;padding:6px 4px;font-size:15px;background:var(--bg);border:1px solid var(--line)}
  .nav .nav-cta{background:var(--ink);border-color:var(--ink)}.nav-x{display:none}
  /* Readable small text */
  .stats,.crumbs{font-size:15px}.dl-in{font-size:14px}.dl-ev,.card-meta,.card-next{font-size:15px}.card-date{font-size:14px}
  .tag{font-size:12px}.badge{font-size:12px}.note,.tier ul{font-size:16px}.verified{font-size:15px}.site-footer{font-size:15px}
  /* Filters: full-width 16px selects (iOS zooms into anything under 16px) */
  .filters{flex-direction:column;gap:10px}.filters label{font-size:14px}
  .filters select{width:100%;min-width:0;font-size:16px;min-height:44px}
  /* Deadline rows stack */
  .dl{grid-template-columns:minmax(0,1fr);gap:4px;padding:12px 14px}.dl-date{display:flex;gap:10px;align-items:baseline;flex-wrap:wrap}
  .dl-src{justify-self:start;display:inline-flex;align-items:center;min-height:44px;margin:-6px 0 -10px;font-size:15px}
  .cards{grid-template-columns:minmax(0,1fr)}
  /* Tap targets for chips and inline link lists */
  .topic{display:inline-block;font-size:14px;padding:8px 12px;line-height:1.2}.tags{gap:6px}
  .crumbs a,.site-footer p:last-child a{display:inline-block;padding:10px 2px}
  .index{columns:1;padding-left:0;list-style:none}.index li{margin:0;border-bottom:1px solid var(--line)}.index a{display:inline-block;padding:11px 0;font-weight:600}
  /* Signup: input and button stack full-width */
  .signup{grid-template-columns:minmax(0,1fr);gap:16px;padding:22px 18px;margin:28px 0}
  .signup-form{flex-direction:column;gap:10px}
  .signup-form input,.signup-form button{width:100%;flex:none;min-height:50px;font-size:16px}
  .fine{font-size:14px}
  /* Buttons */
  .btn{min-height:48px;display:inline-flex;align-items:center;justify-content:center;text-align:center}
  .ev-actions .btn,.notice-actions .btn{flex:1 1 100%}
  /* Event facts: label above value */
  .facts{grid-template-columns:minmax(0,1fr);gap:2px}.facts dt{margin-top:10px}.facts dt:first-child{margin-top:0}
  /* Forms */
  .form{padding:16px}.form .row{flex-direction:column}.form input,.form select,.form textarea{font-size:16px;min-height:44px}
  .form fieldset:not(.plain){padding:10px 12px}
  .tiers{grid-template-columns:minmax(0,1fr)}
  .notice{padding:24px 18px;margin-top:8px}
  /* Any table becomes stacked cards: add data-label on cells; or wrap in .table-wrap to scroll instead */
  table.stack,table.stack tbody,table.stack tr,table.stack td{display:block;width:100%}
  table.stack thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  table.stack tr{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:10px 14px;margin-bottom:10px}
  table.stack td{border:0;padding:4px 0}table.stack td[data-label]::before{content:attr(data-label);display:block;font-size:13px;color:var(--muted)}
}