/* Shared shell for server-rendered pages (home, /pricing, /account, static pages, /reliability, /screens, alerts pages).
   Colour tokens come from /theme.css; page-specific rules stay inline in server/pages/*.js.
   Editorial, restrained: one accent, plain panels with a 1px hairline, no blur, no glows.
   Labels are sentence case, Inter 500/600, muted: no uppercase, no tracking. */
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--text);font-family:var(--sans);font-size:15px;-webkit-font-smoothing:antialiased;line-height:1.55}
body{min-height:100vh}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
button,input,textarea,select{font:inherit;color:inherit}
[class]{font-variant-numeric:tabular-nums}
img,svg{max-width:100%}
.hidden{display:none!important}
.muted{color:var(--muted)}
.small{font-size:13px}
.label{font-size:12px;font-weight:500;color:var(--muted)}

/* brand lockup (markup from server/pages/brand.js: SVG mark + wordmark) */
.brand{display:inline-flex;align-items:center;gap:9px;color:var(--text);text-decoration:none}
.brand:hover{text-decoration:none}
.logo-mark{width:28px;height:28px;flex:none;color:var(--text)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-title{font-weight:700;font-size:17px;letter-spacing:-.02em}
.brand-title .accent,.slash{color:var(--accent)}
.brand-sub{color:var(--muted);font-size:11px;font-weight:500}

/* header / nav: plain, sticky, 1px hairline */
.site-header{position:sticky;top:0;z-index:30;background:var(--bg);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:10px 16px;padding:14px 20px;max-width:1140px;margin:0 auto;flex-wrap:wrap}
.nav-toggle{display:none;width:36px;height:36px;border-radius:8px;border:1px solid var(--line-strong);background:transparent;color:var(--text);cursor:pointer;place-items:center}
.nav-toggle svg{width:20px;height:20px}
.nav-links{margin-left:auto;display:flex;gap:2px;align-items:center;flex-wrap:wrap}
.nav-links a{color:var(--muted);padding:7px 11px;border-radius:7px;font-weight:500;font-size:14px}
.nav-links a:hover,.nav-links a.on{color:var(--text);text-decoration:none}
.nav-links a.cta{color:var(--on-accent);background:var(--accent);font-weight:600;margin-left:6px}
.nav-links a.cta:hover{background:var(--accent-strong)}
.chip{display:inline-flex;align-items:center;gap:8px;padding:5px 8px 5px 12px;border-radius:999px;border:1px solid var(--line-strong);font-size:13px;color:var(--text)!important;margin-left:6px}
.chip span:first-child{max-width:160px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.plan-tag{font-size:11px;font-weight:600;padding:2px 8px;border-radius:999px;background:var(--accent-soft);color:var(--accent)}
.plan-tag.free{background:var(--hover-strong);color:var(--muted)}
.plan-tag.business{background:var(--cyan-soft);color:var(--cyan)}
.tag{display:inline-block;font-size:12px;font-weight:500;color:var(--muted);padding:2px 8px;border:1px solid var(--line-strong);border-radius:999px}
@media (max-width:760px){
  .nav{padding:12px 16px}
  .nav-toggle{display:grid}
  .nav .theme-btn{margin-left:auto}
  .nav-links{display:none;order:3;flex-basis:100%;flex-direction:column;align-items:stretch;gap:2px;padding:6px 0 4px}
  .nav.open .nav-links{display:flex}
  .nav-links a{padding:10px 12px}
  .nav-links a.cta,.chip{text-align:center;margin-left:0;justify-content:center}
}

/* content */
main{max-width:1140px;margin:0 auto;padding:32px 20px 96px}
@media (min-width:760px){main{padding:40px 20px 112px}}
h1{font-size:clamp(32px,4.5vw,48px);font-weight:700;letter-spacing:-.035em;line-height:1.05;margin:16px 0 14px}
h2{font-size:clamp(22px,2.8vw,30px);font-weight:700;letter-spacing:-.025em;line-height:1.15;margin:56px 0 14px}
h3{font-size:17px;font-weight:600;letter-spacing:-.01em;margin:0 0 6px}
p{margin:0 0 1em}
.lead{color:var(--muted);font-size:clamp(16px,1.6vw,19px);line-height:1.5;max-width:640px;margin:0 0 32px}
.glass,.panel{background:var(--panel-solid);border:1px solid var(--line);border-radius:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 16px;border-radius:9px;border:1px solid var(--line-strong);background:transparent;cursor:pointer;font-size:14px;font-weight:500;color:var(--text);text-decoration:none!important;transition:background .15s,border-color .15s;line-height:1.2}
.btn:hover{background:var(--hover)}
.btn.primary{background:var(--accent);color:var(--on-accent);border-color:var(--accent);font-weight:600}
.btn.primary:hover{background:var(--accent-strong);border-color:var(--accent-strong)}
.btn.danger{color:var(--d3);border-color:color-mix(in srgb,var(--d3) 35%,transparent)}
.btn.danger:hover{background:color-mix(in srgb,var(--d3) 10%,transparent)}
.btn[disabled],.btn.soon,.btn.disabled{opacity:.5;cursor:not-allowed;pointer-events:none}
.btn.block{width:100%}
.btn.lg{padding:13px 22px;font-size:16px;border-radius:10px}
.notice{padding:12px 14px;border-radius:9px;border:1px solid var(--line-strong);margin:0 0 20px;font-size:14px}
.notice.ok{border-color:var(--ok-line);background:var(--ok-soft);color:var(--ok)}
.notice.warn{border-color:color-mix(in srgb,var(--d1) 40%,transparent);background:color-mix(in srgb,var(--d1) 8%,transparent);color:var(--d1)}
.notice.bad{border-color:color-mix(in srgb,var(--d3) 40%,transparent);background:color-mix(in srgb,var(--d3) 8%,transparent);color:var(--d3)}
.field{display:flex;gap:8px;flex-wrap:wrap}
.field input{flex:1;min-width:200px;height:42px;padding:0 14px;border-radius:9px;border:1px solid var(--line-strong);background:var(--panel-solid);outline:0;color:var(--text)}
.field input:focus,input:focus,select:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
input::placeholder,textarea::placeholder{color:var(--dim)}
.form{display:grid;gap:12px;max-width:560px}
.form label{display:grid;gap:5px;font-size:13px;font-weight:500;color:var(--muted)}
.form input,.form textarea{width:100%;padding:10px 14px;border-radius:9px;border:1px solid var(--line-strong);background:var(--panel-solid);outline:0;color:var(--text);font-weight:400}
.form textarea{min-height:140px;resize:vertical}
.modal{position:fixed;inset:0;z-index:40;display:grid;place-items:center;background:var(--overlay);padding:16px}
.modal .box{width:min(440px,100%);padding:24px;background:var(--panel-solid);box-shadow:var(--shadow)}
.modal h3{margin:0 0 6px;font-size:18px}
.prose{max-width:720px}
.prose h1{margin-top:0}
.prose h2{margin-top:40px;font-size:clamp(20px,2.2vw,24px)}
.prose p,.prose li{color:var(--text);font-size:16px;line-height:1.65}
.prose p.muted,.prose .muted{color:var(--muted)}
.prose ul{padding-left:20px}
.prose table{width:100%;border-collapse:collapse;font-size:14px}
.prose th,.prose td{text-align:left;padding:8px;border-bottom:1px solid var(--line);vertical-align:top}
.prose th{color:var(--muted);font-weight:500}
code{font-family:inherit;color:var(--text);background:var(--hover-strong);padding:1px 5px;border-radius:5px;font-size:.95em}
table{width:100%;border-collapse:collapse;font-size:14px}
th{text-align:left;font-size:12px;font-weight:500;color:var(--muted);padding:6px 8px;border-bottom:1px solid var(--line-strong)}
td{padding:9px 8px;border-bottom:1px solid var(--line)}
td.r,th.r{text-align:right}
tr:hover td{background:var(--hover)}
details{border-top:1px solid var(--line)}
details:last-of-type{border-bottom:1px solid var(--line)}
summary{cursor:pointer;font-weight:500;list-style:none;display:flex;justify-content:space-between;gap:16px;padding:16px 0;font-size:16px}
summary::-webkit-details-marker{display:none}
summary::after{content:'+';color:var(--muted);font-weight:400;flex:none}
details[open] summary::after{content:'−'}
details p{margin:0 0 16px;color:var(--muted);font-size:15px;line-height:1.6;max-width:680px}

/* site footer (4 columns on desktop) */
.site-footer{border-top:1px solid var(--line);margin-top:40px}
.site-footer .inner{max-width:1140px;margin:0 auto;padding:36px 20px 48px;display:grid;gap:24px}
@media (min-width:760px){.site-footer .inner{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.site-footer h4{margin:0 0 10px;font-size:13px;font-weight:600;color:var(--text)}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.site-footer a{color:var(--muted);font-size:14px}
.site-footer a:hover{color:var(--text)}
.site-footer .fine{color:var(--dim);font-size:12px;line-height:1.6;margin:12px 0 0;max-width:420px}
.site-footer .copy{grid-column:1/-1;color:var(--dim);font-size:12px;border-top:1px solid var(--line);padding-top:16px}