:root{
  --bg:#070b14; --bg2:#0d1322; --card:#111a2c; --card2:#17203a; --line:#233150;
  --text:#e9eefb; --muted:#8ea2c4; --brand:#4f8cff; --brand2:#7c5cff;
  --ok:#22c55e; --bad:#ef4444; --warn:#f59e0b; --radius:14px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Inter,Arial,sans-serif;
  background:radial-gradient(1100px 700px at 85% -10%,#1a2440 0%,var(--bg) 55%);color:var(--text);font-size:14px;
  overflow-x:hidden}
body.nav-open{overflow:hidden}
a{color:var(--brand);text-decoration:none}
button{font:inherit;cursor:pointer}
input,select,textarea{width:100%;padding:11px 12px;border-radius:10px;border:1px solid var(--line);
  background:#0b1220;color:var(--text);outline:none;font-size:13.5px;font-family:inherit}
input:focus,select:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(79,140,255,.15)}
textarea{resize:vertical;line-height:1.55}
label{font-size:11.5px;color:var(--muted);display:block;margin:12px 0 6px;text-transform:uppercase;letter-spacing:.05em}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 15px;border-radius:10px;
  border:1px solid var(--line);background:var(--card2);color:var(--text);font-weight:600;font-size:13.5px;transition:.15s;white-space:nowrap}
.btn:hover{border-color:var(--brand)}
.btn.primary{background:linear-gradient(135deg,var(--brand),var(--brand2));border:none;color:#fff}
.btn.danger{color:#ffd0d0;border-color:#55222e;background:#24131c}
.btn.ghost{background:transparent}
.btn.small{padding:6px 11px;font-size:12.5px}
.btn:disabled{opacity:.5;cursor:not-allowed}
.w-100{width:100%}
.icon-btn{display:none;align-items:center;justify-content:center;width:40px;height:40px;border-radius:11px;
  border:1px solid var(--line);background:var(--card2);color:var(--text);font-size:17px;line-height:1}

/* login */
.login-wrap{min-height:100vh;display:grid;place-items:center;padding:24px}
.login-card{width:100%;max-width:400px;background:var(--card);border:1px solid var(--line);border-radius:18px;padding:30px}
.brand{display:flex;align-items:center;gap:12px;margin-bottom:4px}
.logo{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;font-size:19px;
  background:linear-gradient(135deg,var(--brand),var(--brand2))}
.brand h1{font-size:17px;margin:0}
.brand small{color:var(--muted);font-size:12px}

/* topbar (mobile only) */
.topbar{display:none}
.tb-brand{display:flex;align-items:center;gap:9px;font-weight:700;font-size:14.5px}
.logo-sm{width:28px;height:28px;border-radius:9px;display:grid;place-items:center;font-size:14px;
  background:linear-gradient(135deg,var(--brand),var(--brand2))}
.scrim{display:none}

/* layout */
.app{display:grid;grid-template-columns:248px 1fr;min-height:100vh}
.side{background:rgba(8,12,22,.8);border-right:1px solid var(--line);padding:16px 12px;display:flex;flex-direction:column;gap:4px;position:sticky;top:0;height:100vh}
.side .head{display:flex;align-items:center;gap:10px;padding:6px 8px 16px;border-bottom:1px solid var(--line);margin-bottom:8px}
.side .head .logo{width:36px;height:36px;font-size:16px;border-radius:10px}
.side .head b{font-size:13.5px;display:block;line-height:1.3}
.side .head small{color:var(--muted);font-size:11px}
.nav{display:flex;flex-direction:column;gap:3px;flex:1;overflow:auto;-webkit-overflow-scrolling:touch}
.nav a{display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:9px;color:var(--muted);font-weight:600;font-size:13.5px}
.nav a:hover{background:var(--card2);color:var(--text)}
.nav a.active{background:linear-gradient(135deg,rgba(79,140,255,.2),rgba(124,92,255,.16));color:#fff;border:1px solid var(--line)}
.nav .sect{font-size:10.5px;text-transform:uppercase;letter-spacing:.08em;color:#5d6d8c;padding:14px 12px 5px}
.side .foot{border-top:1px solid var(--line);padding-top:12px}
.main{padding:24px 28px;max-width:1220px;width:100%}
.page-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:18px}
.page-head h2{margin:0;font-size:21px}
.page-head p{margin:4px 0 0;color:var(--muted);font-size:13px}
.grid{display:grid;gap:14px}
.grid.cards{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;overflow:hidden}
.card h3{margin:0 0 12px;font-size:14.5px}
.stat{font-size:28px;font-weight:800;letter-spacing:-.02em}
.stat-lbl{color:var(--muted);font-size:11.5px;text-transform:uppercase;letter-spacing:.05em}
.row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.between{justify-content:space-between}
.pill{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:999px;font-size:11.5px;font-weight:700;white-space:nowrap}
.pill.ok{background:#0f2e1d;color:#7ff0a9;border:1px solid #1e5533}
.pill.bad{background:#26141c;color:#ff9b9b;border:1px solid #55222e}
.pill.warn{background:#2a210e;color:#ffd27f;border:1px solid #5c4a17}
.pill.gray{background:#182032;color:var(--muted);border:1px solid var(--line)}
.pill.blue{background:#12253f;color:#9cc4ff;border:1px solid #24406b}
.dot{width:8px;height:8px;border-radius:50%;background:var(--muted)}
.dot.on{background:var(--ok);box-shadow:0 0 0 4px rgba(34,197,94,.14)}
.dot.off{background:var(--bad)}

/* tables (desktop) */
table{width:100%;border-collapse:collapse;font-size:13.5px}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:middle}
th{color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.05em}
tr:hover td{background:rgba(255,255,255,.018)}

code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12.5px}
pre{background:#080d18;border:1px solid var(--line);border-radius:10px;padding:11px;overflow:auto;
  font-size:12px;white-space:pre-wrap;word-break:break-all;font-family:ui-monospace,Menlo,Consolas,monospace;margin:6px 0 0}
.muted{color:var(--muted)}
.mono{font-family:ui-monospace,Menlo,Consolas,monospace;overflow-wrap:anywhere}
.mt{margin-top:14px}.mb{margin-bottom:14px}
.hidden{display:none !important}
.tabs{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:16px}
.tabs button{padding:7px 14px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--muted);font-weight:600;font-size:12.5px}
.tabs button.active{background:var(--card2);color:#fff;border-color:var(--brand)}
.modal-bg{position:fixed;inset:0;background:rgba(3,6,13,.72);backdrop-filter:blur(4px);display:grid;place-items:center;padding:20px;z-index:70}
.modal{width:100%;max-width:620px;max-height:90vh;overflow:auto;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px;-webkit-overflow-scrolling:touch}
.modal.wide{max-width:820px}
.modal h3{margin:0 0 4px;font-size:16px}
.toast{position:fixed;bottom:22px;right:22px;padding:13px 18px;border-radius:12px;font-weight:600;font-size:13.5px;z-index:90;box-shadow:0 14px 34px rgba(0,0,0,.45);max-width:420px}
.toast.ok{background:#0f2e1d;border:1px solid #1e5533;color:#c8f7d8}
.toast.err{background:#26141c;border:1px solid #55222e;color:#ffc9c9}
.rec{display:grid;grid-template-columns:62px 1fr;gap:14px;padding:12px 0;border-bottom:1px solid var(--line)}
.rec:last-child{border-bottom:none}
.rec .k{font-weight:800;font-size:12px;color:var(--muted);padding-top:2px}
.score{font-size:32px;font-weight:800}
.inline{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end}
.inline>div{flex:1;min-width:140px}
.logbox{height:430px;overflow:auto;background:#060a13;border:1px solid var(--line);border-radius:12px;padding:12px;font-size:11.5px;line-height:1.65;-webkit-overflow-scrolling:touch}
.logbox div{border-bottom:1px solid rgba(255,255,255,.028);padding:2px 0;word-break:break-all;font-family:ui-monospace,Menlo,Consolas,monospace}
.codebox{background:#060a13;border:1px solid var(--line);border-radius:10px;padding:14px;font-size:12.5px;line-height:1.6;overflow:auto;font-family:ui-monospace,Menlo,Consolas,monospace;white-space:pre;color:#c9d8f5;-webkit-overflow-scrolling:touch}
.bar{display:flex;height:8px;border-radius:999px;overflow:hidden;background:#101827}
.bar>i{display:block;height:100%}
.kv{display:grid;grid-template-columns:150px 1fr;gap:8px 14px;font-size:13.5px}
.kv>div:nth-child(odd){color:var(--muted)}
.tpl-prev{border:1px solid var(--line);border-radius:10px;background:#fff;color:#111;padding:16px;max-height:340px;overflow:auto}
.head-row{display:flex;align-items:center;gap:10px;justify-content:space-between;flex-wrap:wrap;margin-bottom:14px}
.searchbar{max-width:280px}

/* =====================================================================
   TABLET  (<= 980px)  — sidebar becomes an off-canvas drawer
   ===================================================================== */
@media (max-width:980px){
  .app{display:block;min-height:100vh}
  .topbar{display:flex;position:sticky;top:0;z-index:40;align-items:center;gap:12px;
    padding:10px 14px;background:rgba(8,12,22,.94);backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);padding-top:calc(10px + env(safe-area-inset-top))}
  .icon-btn{display:inline-flex}
  .tb-spacer{flex:1}

  .side{position:fixed;top:0;left:0;height:100vh;width:272px;max-width:86vw;z-index:60;
    transform:translateX(-102%);transition:transform .24s cubic-bezier(.4,0,.2,1);
    box-shadow:0 0 48px rgba(0,0,0,.65);background:#0a0f1c;border-right:1px solid var(--line);
    padding-top:calc(16px + env(safe-area-inset-top))}
  .side.open{transform:translateX(0)}
  .scrim{display:block;position:fixed;inset:0;background:rgba(3,6,13,.62);z-index:55;
    opacity:0;pointer-events:none;transition:opacity .24s}
  .scrim.show{opacity:1;pointer-events:auto}

  .main{padding:16px 14px 48px;max-width:100%}
  .page-head{margin-bottom:14px}
  .page-head h2{font-size:19px}
  .page-head p{font-size:12.5px}
  #view-actions{display:flex;gap:8px;width:100%}
  #view-actions>*{flex:1 1 auto;min-width:0}
  #view-actions .searchbar{max-width:none}

  .grid.cards{grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}
  .card{padding:14px;border-radius:12px}
  .stat{font-size:23px}

  /* stack form fields */
  .inline{gap:8px}
  .inline>div{flex:1 1 100%;min-width:0}
  .inline .btn{flex:1 1 100%}

  /* touch-friendly controls */
  .btn{padding:12px 16px;min-height:44px}
  .btn.small{padding:9px 13px;min-height:38px}
  .nav a{padding:13px 12px;min-height:46px}

  .tabs{flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .tabs::-webkit-scrollbar{display:none}
  .tabs button{white-space:nowrap;min-height:40px;flex:0 0 auto}

  .kv{grid-template-columns:1fr;gap:2px 0;font-size:13px}
  .kv>div:nth-child(odd){font-size:11px;text-transform:uppercase;letter-spacing:.05em;margin-top:9px}
  .kv>div:nth-child(even){margin-bottom:4px;overflow-wrap:anywhere}

  .logbox{height:62vh;font-size:11px}
  .codebox{font-size:11.5px}
  .toast{left:14px;right:14px;bottom:14px;max-width:none;text-align:center}
  .modal{padding:20px}
  .tpl-prev{max-height:260px}
  .head-row{gap:8px}
}

/* =====================================================================
   PHONE  (<= 760px)  — tables become stacked cards
   ===================================================================== */
@media (max-width:760px){
  /* iOS: 16px inputs prevent auto-zoom on focus */
  input,select,textarea{font-size:16px;padding:12px}
  label{font-size:12px}

  .responsive-table{display:block}
  .responsive-table thead{display:none}
  .responsive-table tbody{display:block}
  .responsive-table tr{display:block;background:var(--card2);border:1px solid var(--line);
    border-radius:12px;margin-bottom:10px;padding:4px 14px}
  .responsive-table tr:hover td{background:transparent}
  .responsive-table td{display:flex;align-items:center;justify-content:space-between;gap:12px;
    padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.07);text-align:right}
  .responsive-table td:last-child{border-bottom:none}
  .responsive-table td::before{content:attr(data-label);flex:0 0 40%;text-align:left;color:var(--muted);
    font-size:10.5px;text-transform:uppercase;letter-spacing:.05em;font-weight:700}
  .responsive-table td:not([data-label])::before{display:none}
  .responsive-table td>div{min-width:0;overflow-wrap:anywhere}
  .responsive-table td .row{justify-content:flex-end;gap:8px}
  .responsive-table td[data-label=""]{}
  .responsive-table td:last-child .row,
  .responsive-table td .row{flex-wrap:wrap}

  .grid.cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat{font-size:21px}
  .rec{grid-template-columns:1fr;gap:4px;padding:11px 0}
  .rec .k{padding-top:0;font-size:11px;text-transform:uppercase;letter-spacing:.05em}
  .score{font-size:27px}
  .page-head h2{font-size:18px}
  .card h3{font-size:14px}
  .modal-bg{align-items:flex-end;padding:0}
  .modal{max-width:none;width:100%;max-height:94vh;border-radius:18px 18px 0 0;
    padding:20px 16px calc(22px + env(safe-area-inset-bottom))}
  .btn.small{padding:8px 12px;min-height:36px;font-size:12px}
  pre{font-size:11.5px}
}

/* =====================================================================
   SMALL PHONE  (<= 420px)
   ===================================================================== */
@media (max-width:420px){
  .main{padding:14px 11px 44px}
  .tb-brand{font-size:13.5px}
  .grid.cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}
  .card{padding:12px}
  .stat{font-size:19px}
  .stat-lbl{font-size:10.5px}
  .responsive-table td::before{flex:0 0 36%}
  .responsive-table td{font-size:13px}
  .pill{font-size:11px;padding:3px 8px}
}

/* landscape phones */
@media (max-width:980px) and (orientation:landscape) and (max-height:520px){
  .modal{max-height:96vh}
  .logbox{height:52vh}
}

/* accessibility: bigger text option */
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
}

/* ---- Firebase / OAuth login ---- */
.oauth-btn{width:100%;background:#fff;color:#1f2430;border:1px solid #d8dee9;font-weight:700;
  display:flex;align-items:center;justify-content:center;gap:10px;margin-top:18px}
.oauth-btn:hover{background:#f3f6fb;border-color:#b9c4d6}
.oauth-btn:disabled{opacity:.6}
.oauth-btn svg{flex:0 0 auto}
.or{display:flex;align-items:center;gap:12px;margin:18px 0 4px;color:var(--muted);font-size:11px;
  text-transform:uppercase;letter-spacing:.07em}
.or::before,.or::after{content:"";flex:1;height:1px;background:var(--line)}
.login-card form{margin-top:2px}
#login-msg .pill{display:block;text-align:center;padding:9px 12px;border-radius:10px;font-size:12.5px;
  white-space:normal;line-height:1.45}
@media (max-width:760px){
  .oauth-btn{min-height:48px;font-size:15px}
  .login-card{padding:24px 18px;border-radius:16px}
}


/* ================= Template live preview (Resend-style) ================= */
.tpl-shell{background:#f6f7f9;border:1px solid #dfe4ee;border-radius:14px;overflow:hidden;
  box-shadow:0 6px 20px rgba(0,0,0,.18)}
.tpl-meta{display:flex;align-items:flex-start;gap:12px;padding:14px 16px;
  background:#fff;border-bottom:1px solid #e6eaf2}
.tpl-avatar{width:38px;height:38px;flex:0 0 38px;border-radius:50%;display:grid;place-items:center;
  font-weight:800;font-size:15px;color:#fff;background:linear-gradient(135deg,#4f8cff,#7c5cff)}
.tpl-fromline{font-size:13px;color:#39435c;line-height:1.35;overflow-wrap:anywhere}
.tpl-fromline b{color:#111827;font-size:13.5px}
.tpl-subjline{font-size:14.5px;font-weight:700;color:#0f172a;margin-top:3px;overflow-wrap:anywhere}
.tpl-prevline{font-size:12.5px;color:#7c8798;margin-top:2px;overflow:hidden;text-overflow:ellipsis;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical}
.tpl-body{background:#fff;color:#111;padding:18px;min-height:150px;max-height:400px;overflow:auto;
  font-size:14px;line-height:1.55}
.tpl-body img{max-width:100%;height:auto}
.tpl-body a{color:#2563eb}
.tpl-body table{width:auto;max-width:100%}

@media (max-width:760px){
  .tpl-meta{padding:12px;gap:10px}
  .tpl-avatar{width:32px;height:32px;flex:0 0 32px;font-size:13px}
  .tpl-body{padding:14px;max-height:300px;font-size:13.5px}
}


/* ================= integration snippets / API docs ================= */
#code-tabs{margin-bottom:10px}
#code-box{max-height:420px;line-height:1.6;tab-size:2;-moz-tab-size:2}
.modal .codebox{max-height:340px}
.modal table{margin:8px 0}
.modal table td{font-size:13px;vertical-align:top}
.modal h3{scroll-margin-top:12px}

@media (max-width:760px){
  #code-box{font-size:11px;max-height:300px}
  .modal .codebox{max-height:250px}
  .modal table td{padding:8px 9px;font-size:12.5px}
  #view-actions{gap:8px}
  #view-actions .btn{flex:1 1 auto}
}