/* ============================================================
   TempMailPortal — shared styles for the secondary content pages
   (about / contact / privacy / terms). The main app (index.html)
   stays a single self-contained file; these lighter pages share
   this stylesheet so the chrome stays consistent.
   ============================================================ */
:root{
  --bg:#eef3fb;
  --card:#ffffff;
  --card-2:#f6f9fe;
  --line:#e4ebf4;
  --line-2:#eef2f8;
  --ink:#15233b;
  --ink-2:#5a6b85;
  --ink-3:#5f6f86;
  --brand:#2563eb;
  --brand-d:#1d4ed8;
  --brand-soft:#2563eb14;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,system-ui,sans-serif;
  --shadow:0 10px 30px -12px rgba(20,40,80,.18);
  --shadow-sm:0 2px 8px -2px rgba(20,40,80,.10);
  --radius:16px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:
    radial-gradient(900px 480px at 82% -8%, #2563eb12, transparent 60%),
    radial-gradient(720px 560px at -8% 8%, #14b8a610, transparent 55%),
    var(--bg);
  color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;
  line-height:1.5;min-height:100vh;display:flex;flex-direction:column;
}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
:where(a,button,input,select,summary,[tabindex]):focus-visible{outline:3px solid #1d4ed8;outline-offset:3px}
button:disabled{cursor:wait;opacity:.58}
.container{max-width:920px;margin:0 auto;padding:0 20px;width:100%}

/* header */
.site-header{background:#ffffffd9;backdrop-filter:saturate(160%) blur(8px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:30}
.nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:18px;letter-spacing:-.02em;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand .mark{width:36px;height:36px;border-radius:10px;flex-shrink:0;background:linear-gradient(135deg,var(--brand),#38bdf8);display:grid;place-items:center;color:#fff;box-shadow:0 6px 16px -6px var(--brand)}
.brand .mark svg{width:20px;height:20px}
.brand small{display:block;font-family:var(--mono);font-size:9.5px;color:var(--ink-3);font-weight:500;letter-spacing:.1em;text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:24px}
.nav-links a{color:var(--ink-2);font-weight:500;font-size:14px}
.nav-links a:hover{color:var(--brand);text-decoration:none}
@media(max-width:640px){
  .nav{height:auto;min-height:64px;flex-wrap:wrap;gap:8px;padding-top:10px}
  .brand{width:100%}.brand small{display:none}
  .nav-links{width:100%;gap:16px;padding-bottom:10px;overflow-x:auto;white-space:nowrap;scrollbar-width:none}
  .nav-links::-webkit-scrollbar{display:none}
}

/* page body */
main{flex:1;width:100%}
.page{max-width:780px;margin:0 auto;padding:42px 20px 20px}
.page .crumb{font-size:13px;color:var(--ink-3);margin-bottom:14px}
.page h1{font-size:clamp(26px,4vw,36px);font-weight:800;letter-spacing:-.03em;line-height:1.15;margin-bottom:8px}
.page .updated{font-family:var(--mono);font-size:12px;color:var(--ink-3);margin-bottom:26px}
.page h2{font-size:20px;font-weight:700;margin:30px 0 10px;letter-spacing:-.01em}
.page h3{font-size:16px;font-weight:700;margin:20px 0 8px}
.page p{color:var(--ink-2);font-size:15.5px;line-height:1.75;margin-bottom:12px}
.page ul{color:var(--ink-2);font-size:15.5px;line-height:1.7;margin:6px 0 14px 22px}
.page li{margin-bottom:7px}
.page b,.page strong{color:var(--ink);font-weight:600}
.page a{font-weight:500}
.lead{font-size:17px;color:var(--ink);margin-bottom:18px}
.callout{background:var(--card);border:1px solid var(--line);border-left:3px solid var(--brand);border-radius:10px;padding:14px 18px;margin:18px 0;font-size:14.5px;color:var(--ink-2);box-shadow:var(--shadow-sm)}
.contact-card{display:flex;flex-wrap:wrap;gap:10px 26px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px 22px;margin:18px 0;box-shadow:var(--shadow-sm)}
.contact-card .row{display:flex;flex-direction:column;gap:2px}
.contact-card .k{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3)}
.contact-card .v{font-family:var(--mono);font-size:14.5px;color:var(--ink)}

/* buttons */
.btn{font-family:var(--sans);font-weight:600;font-size:14px;cursor:pointer;border:1px solid var(--line);background:#fff;color:var(--ink);padding:11px 16px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.15s;white-space:nowrap;text-decoration:none}
.btn:hover{border-color:#cdd9e8;background:var(--card-2);text-decoration:none}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn.primary:hover{background:var(--brand-d);border-color:var(--brand-d)}
.btn.ghost{background:#fff}

/* footer */
footer{margin-top:40px;border-top:1px solid var(--line);background:#fff}
.foot{display:flex;flex-wrap:wrap;gap:14px 24px;align-items:center;justify-content:space-between;padding:26px 0;font-size:13px;color:var(--ink-3)}
.foot a{color:var(--ink-2)}
.foot-links{display:flex;flex-wrap:wrap;gap:18px}
.foot .note{flex-basis:100%;font-size:12px;color:var(--ink-3);line-height:1.6}

/* ---------- blog / articles ---------- */
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 14px;font-size:13px;color:var(--ink-3);margin:-2px 0 22px}
.post-meta .chip{font-family:var(--mono);font-size:11px;color:var(--brand);background:var(--brand-soft);padding:3px 10px;border-radius:999px;letter-spacing:.02em}
.post-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--ink-3)}
.page figure.flow-figure{overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:thin;scrollbar-color:#cbd5e1 transparent}
.page figure.flow-figure svg{display:block;width:100%;height:auto}
.page figure.key{background:var(--card);border:1px solid var(--line);border-left:3px solid var(--brand);border-radius:10px;padding:14px 18px;margin:18px 0;box-shadow:var(--shadow-sm)}
.page figure.key figcaption{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);margin-bottom:6px}
.page figure.key p{margin:0;color:var(--ink-2)}
.page table.cmp{width:100%;border-collapse:collapse;margin:18px 0;font-size:14.5px;background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.page table.cmp th,.page table.cmp td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--line-2);vertical-align:top}
.page table.cmp thead th{background:var(--card-2);font-size:12px;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-3)}
.page table.cmp tr:last-child td{border-bottom:0}
.page table.cmp td:first-child{font-weight:600;color:var(--ink)}
@media(max-width:640px){
  .page figure.flow-figure{padding:12px!important}
  .page figure.flow-figure svg{min-width:660px;max-width:none}
  .page table.cmp{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .page table.cmp th,.page table.cmp td{min-width:128px}
  .page table.cmp th:first-child,.page table.cmp td:first-child{min-width:148px}
}

.article-cta{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;background:linear-gradient(180deg,var(--card),var(--card-2));border:1px solid var(--line);border-radius:14px;padding:20px 22px;margin:28px 0;box-shadow:var(--shadow-sm)}
.article-cta div{flex:1;min-width:220px}
.article-cta b{font-size:16px;color:var(--ink);display:block;margin-bottom:3px}
.article-cta span{font-size:14px;color:var(--ink-2)}

.related{margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.related h2{font-size:18px;margin-bottom:14px}

/* blog index */
.post-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px;margin-top:26px}
.post-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px 22px;box-shadow:var(--shadow-sm);transition:.16s;text-decoration:none}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:#cdd9e8;text-decoration:none}
.post-card .chip{align-self:flex-start;font-family:var(--mono);font-size:10.5px;color:var(--brand);background:var(--brand-soft);padding:3px 9px;border-radius:999px;letter-spacing:.04em;text-transform:uppercase;margin-bottom:11px}
.post-card h3{font-size:17px;font-weight:700;color:var(--ink);line-height:1.3;margin-bottom:8px}
.post-card p{font-size:14px;color:var(--ink-2);line-height:1.6;margin:0 0 14px}
.post-card .read{margin-top:auto;font-size:13px;font-weight:600;color:var(--brand)}