:root{
  --bg:#f2f4fa; --surface:#ffffff; --surface-2:#f4f6fb; --ink:#121a33; --muted:#5b6582; --line:#dfe4f0;
  --brand:#1e3f9e; --brand-2:#2f62d8; --brand-deep:#0a1a4a; --brand-soft:#e2e9fb; --signal:#f59e0b; --sun:#fbb424;
  --page-glow:radial-gradient(900px 520px at 100% -10%,rgba(251,180,36,.16),transparent 60%),radial-gradient(800px 600px at -10% 0%,rgba(47,98,216,.12),transparent 55%);
  --ok:#1f8a4c; --ok-soft:#dcf2e4; --warn:#b26a00; --warn-soft:#fdeccc; --bad:#c23b2e; --bad-soft:#fbe0dc;
  --display:"Bricolage Grotesque",ui-sans-serif,system-ui,sans-serif;
  --body:"Figtree",ui-sans-serif,system-ui,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#090f22; --surface:#121a33; --surface-2:#18223f; --ink:#e9eefb; --muted:#9aa6c6; --line:#253158;
  --brand:#3d6fe6; --brand-2:#5b8cff; --brand-deep:#0b1a4f; --brand-soft:#17244d; --signal:#fbbf24; --sun:#fbb424;
  --page-glow:radial-gradient(900px 520px at 100% -10%,rgba(251,180,36,.13),transparent 60%),radial-gradient(800px 600px at -10% 0%,rgba(61,111,230,.20),transparent 55%);
  --ok:#4cc27c; --ok-soft:#173a26; --warn:#f0a83c; --warn-soft:#3d2c10; --bad:#f07264; --bad-soft:#40201c; color-scheme:dark}}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{background:var(--page-glow),var(--bg);background-attachment:fixed;color:var(--ink);font-family:var(--body);font-size:15px;line-height:1.45}
[hidden]{display:none!important}
h2{font-family:var(--display);font-weight:600;font-size:17px;margin:0 0 10px;text-wrap:balance}
h1{font-family:var(--display);font-weight:800;font-size:22px;margin:6px 0 0}
.small{font-size:12px;color:var(--muted)}
.mono{font-family:var(--mono)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:16px}
.stack{display:flex;flex-direction:column;gap:10px}
.btn{appearance:none;border:0;border-radius:12px;padding:12px 16px;font:600 15px var(--body);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none}
.btn.primary{background:var(--brand);color:#fff}
.btn.ghost{background:var(--surface-2);color:var(--ink);border:1px solid var(--line)}
.btn.sm{padding:7px 11px;font-size:13px;border-radius:9px}
.btn.block{width:100%}
.btn:disabled{opacity:.55;cursor:default}
.btn:focus-visible,.tab:focus-visible,.chip:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--signal);outline-offset:2px}
input,textarea,select{font:inherit;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:11px 12px;width:100%}
label{font-size:13px;color:var(--muted);display:flex;flex-direction:column;gap:5px}
.notice{border-radius:12px;padding:12px 14px;font-size:14px}
.notice.warn{background:var(--warn-soft);color:var(--warn)}
.notice.bad{background:var(--bad-soft);color:var(--bad)}
.notice.ok{background:var(--ok-soft);color:var(--ok)}
.pill{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px;white-space:nowrap}
.pill i{width:7px;height:7px;border-radius:50%;background:currentColor}
.pill.active{background:var(--ok-soft);color:var(--ok)}.pill.grace{background:var(--warn-soft);color:var(--warn)}
.pill.isolated{background:var(--bad-soft);color:var(--bad)}.pill.unset{background:var(--surface-2);color:var(--muted)}
.kv{display:grid;grid-template-columns:auto 1fr;gap:8px 12px;font-size:14px;margin:0}
.kv dt{color:var(--muted)}.kv dd{margin:0;text-align:right;font-family:var(--mono);font-size:13px;min-width:0;overflow-wrap:anywhere}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:12px;padding:10px 12px;font:500 14px var(--body);cursor:pointer;flex:1 1 90px;text-align:left}
.chip b{display:block;font-family:var(--mono);font-size:14px;margin-top:2px}
.chip[aria-pressed="true"]{border-color:var(--brand);background:var(--brand-soft);box-shadow:inset 0 0 0 1px var(--brand)}
.err{color:var(--bad);font-size:13px;min-height:1em}
/* chat */
.chat{display:flex;flex-direction:column;gap:8px;overflow-y:auto;padding:4px 2px}
.bubble{max-width:80%;padding:9px 12px;border-radius:14px;font-size:14px;white-space:pre-wrap;overflow-wrap:anywhere}
.bubble time{display:block;font-size:10px;opacity:.7;margin-top:3px;text-align:right}
.bubble.me{align-self:flex-end;background:var(--brand);color:#fff;border-bottom-right-radius:4px}
.bubble.them{align-self:flex-start;background:var(--surface);border:1px solid var(--line);border-bottom-left-radius:4px}
.composer{display:flex;gap:8px;align-items:flex-end}
.composer textarea{resize:none;height:44px;max-height:120px}
.typing{font-size:12px;color:var(--muted);min-height:16px}
/* Status pesan ala WhatsApp: jam = belum terkirim, ✓ = terkirim, ✓✓ = sampai, ✓✓ kuning = dibaca */
.bubble time{display:flex;align-items:center;justify-content:flex-end;gap:3px}
.tick{display:inline-flex;width:16px;height:11px;flex:none}
.tick svg{width:16px;height:11px}
.tick.read{opacity:1;color:#ffeb3b}
.bubble time{opacity:1}
.bubble.me time{color:rgba(255,255,255,.78)}
.bubble.them time{color:var(--muted)}
.msglink{color:inherit;text-decoration:underline;text-underline-offset:2px;overflow-wrap:anywhere;font-weight:600}
.bubble.them .msglink,.qmsg .msglink{color:var(--brand)}
.daysep{align-self:center;margin:6px 0 2px;font-size:11.5px;font-weight:600;color:var(--muted)}
.daysep span{display:inline-block;background:var(--surface-2);border:1px solid var(--line);border-radius:8px;padding:3px 10px}
.tgvals{display:flex;flex-direction:column;gap:4px;max-height:220px;overflow:auto}
.tgvals .tgv{margin:0}

/* Tema SN_WIFI: kartu utama gradasi biru malam + cahaya matahari */
.hero{background:radial-gradient(260px 200px at 100% 0%,rgba(251,180,36,.38),transparent 70%),linear-gradient(135deg,var(--brand-2),var(--brand) 45%,var(--brand-deep))!important;box-shadow:0 12px 30px -14px rgba(10,26,74,.55)}
.hero::after{border-color:rgba(255,209,102,.14)!important}
.btn.primary{background:linear-gradient(135deg,var(--brand-2),var(--brand));box-shadow:0 6px 16px -8px rgba(30,63,158,.7)}
.card{box-shadow:0 1px 2px rgba(18,26,51,.04)}
.logo{width:64px;height:64px;border-radius:18px;box-shadow:0 10px 24px -10px rgba(10,26,74,.6)}