/* app.css — shared design system for the CUWCS Mail tools (home + send pages).
   Mirrors the tokens used by the create-mailbox page so everything looks of-a-piece. */
:root{
  --paper:#F1EADB; --card:#FBF7EE; --ink:#211F1A; --ink-soft:#605C50;
  --accent:#C2452A; --accent-deep:#982F1A; --navy:#28384A;
  --olive:#5E7140; --line:rgba(33,31,26,.14); --line-2:rgba(33,31,26,.28);
  --shadow:0 1px 0 rgba(255,255,255,.6) inset, 0 18px 40px -22px rgba(33,31,26,.55);
  --mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
  --sans:"Hanken Grotesk",-apple-system,sans-serif;
  --serif:"Fraunces",Georgia,serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--sans);color:var(--ink);background:var(--paper);
  line-height:1.55;-webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(120% 80% at 12% -10%, rgba(194,69,42,.10), transparent 55%),
    radial-gradient(100% 70% at 100% 0%, rgba(40,56,74,.10), transparent 50%);
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.5;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix type='saturate' values='0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='0.45'/></svg>");
  mix-blend-mode:multiply;
}
.wrap{position:relative;z-index:1;max-width:760px;margin:0 auto;padding:40px 22px 90px}

/* nav */
.nav{display:flex;align-items:center;gap:18px;margin-bottom:30px;font-family:var(--mono);
  font-size:11px;letter-spacing:.16em;text-transform:uppercase}
.nav a{color:var(--ink-soft);text-decoration:none;transition:color .15s}
.nav a:hover{color:var(--accent-deep)}
.nav a.active{color:var(--accent-deep);font-weight:700}
.nav .brand{color:var(--ink);font-weight:700;display:flex;align-items:center;gap:8px}
.nav .brand::before{content:"✦";color:var(--accent)}
.nav .sp{flex:1}
.nav .whoami{font-family:var(--mono);font-size:11px;letter-spacing:.06em;color:var(--ink-soft);text-transform:none}
.mboxlabel{font-family:var(--mono);font-size:13px;color:var(--accent-deep);border:1px solid var(--line-2);
  border-radius:8px;padding:8px 12px;background:rgba(33,31,26,.03)}

/* header */
.eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.34em;text-transform:uppercase;
  color:var(--accent-deep);display:flex;align-items:center;gap:10px;margin:0 0 18px}
.eyebrow::before{content:"";width:34px;height:1px;background:var(--accent);display:inline-block}
h1{font-family:var(--serif);font-optical-sizing:auto;font-weight:600;font-size:clamp(38px,8vw,68px);
  line-height:.97;letter-spacing:-.02em;margin:0 0 14px}
h1 em{font-style:italic;font-weight:500;color:var(--accent)}
.lede{font-size:17px;color:var(--ink-soft);max-width:54ch;margin:0 0 34px}

/* cards */
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);
  padding:30px 30px 34px;position:relative}
.card+.card{margin-top:26px}
.card-kicker{font-family:var(--mono);font-size:11px;letter-spacing:.26em;text-transform:uppercase;
  color:var(--ink-soft);margin:0 0 6px}
.card h2{font-family:var(--serif);font-weight:600;font-size:25px;margin:0 0 22px;letter-spacing:-.01em}

/* feature grid (home) */
.features{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:600px){.features{grid-template-columns:1fr}}
.feature{display:flex;flex-direction:column;text-decoration:none;color:inherit;
  background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);
  padding:26px 24px 24px;transition:transform .16s, box-shadow .16s, border-color .16s}
.feature:hover{transform:translateY(-3px);border-color:var(--accent);
  box-shadow:0 1px 0 rgba(255,255,255,.6) inset, 0 26px 48px -24px rgba(33,31,26,.6)}
.feature .ic{width:52px;height:52px;border-radius:12px;display:grid;place-content:center;font-size:26px;
  background:rgba(194,69,42,.10);border:1.5px solid var(--line-2);margin-bottom:18px}
.feature h3{font-family:var(--serif);font-weight:600;font-size:22px;margin:0 0 8px;letter-spacing:-.01em}
.feature p{margin:0;font-size:14px;color:var(--ink-soft)}
.feature .go{margin-top:18px;font-family:var(--mono);font-size:12px;letter-spacing:.08em;
  color:var(--accent-deep);text-transform:uppercase;display:flex;align-items:center;gap:6px}
.feature.soon{opacity:.55;pointer-events:none}
.feature .badge{position:absolute;top:16px;right:16px;font-family:var(--mono);font-size:9.5px;
  letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);border:1px solid var(--line-2);
  border-radius:20px;padding:2px 9px}

/* forms */
.field{margin-bottom:22px}
label.lab{display:block;font-weight:600;font-size:13.5px;letter-spacing:.01em;margin-bottom:7px}
label.lab .opt{font-weight:400;color:var(--ink-soft);font-size:12px}
.hint{font-size:12.5px;color:var(--ink-soft);margin-top:6px}
input[type=text],input[type=email],select,textarea{width:100%;font-family:var(--sans);font-size:16px;
  color:var(--ink);background:transparent;border:none;border-bottom:1.5px solid var(--line-2);
  padding:9px 2px;outline:none;transition:border-color .2s}
textarea{border:1.5px solid var(--line-2);border-radius:10px;padding:12px;min-height:160px;resize:vertical;
  font-size:15px;line-height:1.55;font-family:var(--sans)}
select{appearance:none;cursor:pointer;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12'><path d='M2 4l4 4 4-4' fill='none' stroke='%23982F1A' stroke-width='1.6'/></svg>");
  background-repeat:no-repeat;background-position:right 4px center;padding-right:22px}
input:focus,select:focus,textarea:focus{border-color:var(--accent)}
input::placeholder,textarea::placeholder{color:rgba(96,92,80,.55)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media(max-width:560px){.row2{grid-template-columns:1fr}}

/* attachments */
.drop{border:1.5px dashed var(--line-2);border-radius:11px;padding:18px;text-align:center;cursor:pointer;
  transition:.16s;background:rgba(33,31,26,.02)}
.drop:hover,.drop.over{border-color:var(--accent);background:rgba(194,69,42,.05)}
.drop .big{font-family:var(--serif);font-size:16px;color:var(--ink)}
.drop .sub{font-size:12.5px;color:var(--ink-soft);margin-top:4px}
.filelist{list-style:none;margin:12px 0 0;padding:0;display:flex;flex-direction:column;gap:8px}
.filelist li{display:flex;align-items:center;gap:10px;font-size:13.5px;background:rgba(40,56,74,.05);
  border-radius:8px;padding:8px 12px}
.filelist .nm{flex:1;font-family:var(--mono);font-size:12.5px;word-break:break-all}
.filelist .sz{color:var(--ink-soft);font-family:var(--mono);font-size:11.5px;white-space:nowrap}
.filelist .rm{cursor:pointer;color:var(--accent-deep);border:none;background:none;font-size:16px;line-height:1;padding:0 2px}

/* buttons */
.btn{font-family:var(--sans);font-weight:700;font-size:15px;letter-spacing:.02em;cursor:pointer;border:none;
  border-radius:10px;padding:15px 26px;transition:.18s;display:inline-flex;align-items:center;gap:10px}
.btn-primary{background:var(--ink);color:var(--paper);box-shadow:0 12px 26px -14px rgba(33,31,26,.9);width:100%;
  justify-content:center;margin-top:6px}
.btn-primary:hover{background:var(--accent);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line-2);padding:11px 16px;font-size:13px}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent-deep)}
.btn[disabled]{opacity:.55;cursor:default;transform:none!important}

/* checkbox row */
.check{display:flex;align-items:center;gap:10px;cursor:pointer;font-size:14px;color:var(--ink);margin:4px 0 2px}
.check input{appearance:none;width:18px;height:18px;border:1.5px solid var(--line-2);border-radius:5px;
  cursor:pointer;position:relative;flex:none;transition:.15s}
.check input:checked{background:var(--olive);border-color:var(--olive)}
.check input:checked::after{content:"✓";position:absolute;inset:0;color:#fff;font-size:13px;
  display:grid;place-content:center}

/* status + toast */
.cstatus{margin-top:16px;font-size:14px;font-weight:600;display:none}
.cstatus.show{display:block}
.cstatus.ok{color:var(--olive)} .cstatus.err{color:var(--accent-deep)} .cstatus.info{color:var(--ink-soft)}
.cstatus .raw{display:block;font-family:var(--mono);font-size:11.5px;font-weight:400;color:var(--ink-soft);
  margin-top:8px;white-space:pre-wrap;word-break:break-word;background:rgba(33,31,26,.04);border-radius:6px;padding:8px 10px}
.toast{position:fixed;left:50%;bottom:30px;transform:translateX(-50%) translateY(20px);background:var(--ink);
  color:var(--paper);padding:11px 20px;border-radius:30px;font-size:13px;font-weight:600;opacity:0;
  transition:.3s;z-index:50;pointer-events:none}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

.banner{font-size:12.5px;color:var(--ink-soft);background:rgba(40,56,74,.06);border:1px solid var(--line);
  border-radius:9px;padding:10px 14px;margin-bottom:22px}
.note{font-size:12.5px;color:var(--ink-soft);margin-top:16px;padding-top:14px;border-top:1px dashed var(--line-2)}
footer{text-align:center;font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--ink-soft);
  margin-top:46px;opacity:.7}