:root{
  --ink:#17232F; --blue:#2C7A9C; --teal:#3E97B4; --mint:#5FC9BE; --mintl:#B7E6DD;
  --slate:#5B6B78; --line:#E3EBEC; --tint:#EEF7F6; --bg:#F4F7F8; --white:#fff;
  --grad:linear-gradient(135deg,#2C7A9C 0%,#3E97B4 48%,#5FC9BE 100%);
  --radius:12px; --shadow:0 1px 3px rgba(23,35,47,.08),0 6px 20px rgba(23,35,47,.05);
  --font:'Poppins','Segoe UI',Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.55;font-size:15px}
a{color:var(--teal);text-decoration:none} a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.2;color:var(--ink)} h1{font-size:24px;margin:.2em 0 .4em} h2{font-size:19px} h3{font-size:16px}
code{background:var(--tint);padding:1px 6px;border-radius:5px;font-size:.9em;font-family:ui-monospace,Menlo,monospace}
.muted{color:var(--slate)} .small{font-size:13px} .tiny{font-size:12px}
.warn{color:#9C1B1B}
/* ---------- auth screens ---------- */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;
  background:var(--grad)}
.auth-card{background:#fff;border-radius:16px;box-shadow:var(--shadow);width:100%;max-width:420px;padding:34px 32px}
.auth-card img.logo{height:44px;margin-bottom:14px}
.auth-card h1{font-size:20px;margin:0 0 4px} .auth-card p.sub{color:var(--slate);font-size:13px;margin:0 0 22px}
/* ---------- shell ---------- */
.shell{display:flex;min-height:100vh}
.side{width:250px;flex:none;background:var(--ink);color:#cfe0e6;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.side .brand{padding:20px 18px;border-bottom:1px solid rgba(255,255,255,.08)}
.side .brand img{height:34px}
.side nav{padding:10px 8px;overflow:auto;flex:1}
.side nav a{display:flex;gap:10px;align-items:center;color:#cfe0e6;padding:10px 12px;border-radius:9px;font-size:14px;margin:2px 0}
.side nav a:hover{background:rgba(255,255,255,.06);text-decoration:none}
.side nav a.active{background:var(--grad);color:#fff;font-weight:600}
.side nav .grouplbl{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:#7fa8b6;padding:14px 12px 6px}
.side .foot{padding:12px 16px;border-top:1px solid rgba(255,255,255,.08);font-size:12px;color:#8fb0bc}
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{background:#fff;border-bottom:1px solid var(--line);padding:12px 26px;display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;z-index:5}
.topbar .who{font-size:13px;color:var(--slate)} .topbar .who b{color:var(--ink)}
.badge{display:inline-block;font-size:11px;font-weight:600;padding:2px 9px;border-radius:20px;background:var(--tint);color:var(--blue);border:1px solid var(--mintl)}
.badge.owner{background:#FFF3D6;color:#8a6d1f;border-color:#F0D89B}
.badge.member{background:#EDEFF1;color:var(--slate);border-color:#DDE3E6}
.content{padding:26px;max-width:1040px;width:100%}
/* ---------- cards / tables ---------- */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px 24px;margin-bottom:20px}
.card h2:first-child,.card h3:first-child{margin-top:0}
.hero{background:var(--grad);color:#fff;border:none}
.hero h1{color:#fff;margin-top:0} .hero p{color:#eaf7f4}
.prose p{margin:.5em 0} .prose ul{margin:.4em 0 .8em 1.1em} .prose li{margin:.25em 0}
.prose h4{color:var(--teal);margin:1.1em 0 .3em;font-size:15px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.sec-tile{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow)}
.sec-tile:hover{border-color:var(--mint);text-decoration:none;transform:translateY(-1px);transition:.12s}
.sec-tile .ic{font-size:26px} .sec-tile h3{margin:8px 0 4px} .sec-tile p{color:var(--slate);font-size:13px;margin:0}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);font-size:14px;vertical-align:top}
th{font-size:12px;text-transform:uppercase;letter-spacing:.05em;color:var(--slate)}
tr:hover td{background:var(--tint)}
.doc-title{font-weight:600} .doc-sum{color:var(--slate);font-size:13px}
.vis{font-size:11px;font-weight:600;padding:2px 8px;border-radius:14px}
.vis.admins{background:#FDECEC;color:#9C1B1B} .vis.members{background:#E7F5EE;color:#2e7d55}
/* ---------- forms / buttons ---------- */
label{display:block;font-size:13px;color:var(--slate);margin:12px 0 4px;font-weight:600}
input[type=text],input[type=email],input[type=password],input[type=file],select,textarea{
  width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:9px;font:inherit;font-size:14px;background:#fff;color:var(--ink)}
textarea{min-height:90px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(62,151,180,.15)}
.btn{display:inline-block;background:var(--grad);color:#fff;border:none;padding:11px 20px;border-radius:9px;font:inherit;
  font-weight:600;font-size:14px;cursor:pointer;text-align:center}
.btn:hover{opacity:.94;text-decoration:none;color:#fff} .btn.block{display:block;width:100%}
.btn.ghost{background:#fff;color:var(--teal);border:1px solid var(--line)}
.btn.sm{padding:6px 12px;font-size:13px} .btn.danger{background:#B3352B}
.otp-input{letter-spacing:.5em;text-align:center;font-size:22px;font-weight:700}
.flash{padding:11px 16px;border-radius:9px;margin-bottom:16px;font-size:14px}
.flash.info{background:#E9F3F6;color:#1c5b70;border:1px solid #BFE0EA}
.flash.ok{background:#E7F5EE;color:#256a48;border:1px solid #BFE6CF}
.flash.err{background:#FDECEC;color:#9C1B1B;border:1px solid #F3C9C9}
.otp-dev{background:#FFF7E0;border:1px dashed #E4C561;color:#7a601a;padding:10px 14px;border-radius:9px;margin:12px 0;font-size:14px}
.pill-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.pill{display:inline-flex;gap:6px;align-items:center;background:var(--tint);border:1px solid var(--mintl);border-radius:20px;padding:6px 12px;font-size:13px}
.checkgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:8px}
.checkgrid label{display:flex;gap:8px;align-items:center;font-weight:500;color:var(--ink);margin:0;background:var(--tint);padding:9px 12px;border-radius:9px;cursor:pointer}
.checkgrid input{width:auto}
.split{display:flex;gap:10px;flex-wrap:wrap} .split>*{flex:1;min-width:160px}
hr{border:none;border-top:1px solid var(--line);margin:18px 0}
.toolbar{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:12px}
.editor{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.editor textarea{min-height:70vh;font-family:ui-monospace,Menlo,monospace;font-size:12px;line-height:1.5}
.editor iframe{width:100%;min-height:70vh;border:1px solid var(--line);border-radius:9px;background:#fff}
@media(max-width:820px){.side{position:fixed;left:-260px;z-index:30;transition:.2s} .side.open{left:0} .editor{grid-template-columns:1fr}}
/* ---------- document preview ---------- */
.doc-embed{width:100%;height:72vh;border:1px solid var(--line);border-radius:9px;background:#fff}
.cn-modal{position:fixed;inset:0;z-index:100;background:rgba(23,35,47,.60);display:flex;flex-direction:column;padding:24px}
.cn-modal[hidden]{display:none}
.cn-modal-bar{display:flex;justify-content:space-between;align-items:center;gap:12px;background:var(--ink);color:#fff;padding:10px 16px;border-radius:12px 12px 0 0}
.cn-modal-title{font-weight:600;font-size:14px;color:#fff;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cn-modal-actions{display:flex;gap:8px;flex:none}
.cn-modal-frame{flex:1;width:100%;border:none;border-radius:0 0 12px 12px;background:#fff}
/* ---------- To Do ---------- */
.timeline{overflow-x:auto;border:1px solid var(--line);border-radius:9px;padding:8px;background:#fff}
table.todo{width:100%;border-collapse:collapse}
table.todo td{padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}
table.todo tr:last-child td{border-bottom:none}
table.todo tr:hover td{background:var(--tint)}
.todo .tick{width:34px}
.todo .tt{font-weight:600;color:var(--ink)}
.todo tr.done .tt{text-decoration:line-through;color:var(--slate);font-weight:500}
.chk{width:22px;height:22px;border-radius:6px;border:1.5px solid var(--mint);background:#fff;color:#fff;
  font-size:13px;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;padding:0}
.chk.on{background:var(--grad);border-color:transparent}
.who-badge{display:inline-block;margin-top:5px;font-size:11px;font-weight:600;padding:2px 9px;border-radius:20px;background:var(--tint);color:var(--blue);border:1px solid var(--mintl)}
.duecell{white-space:nowrap;text-align:right}
.due{font-size:12.5px;font-weight:600;color:var(--slate)}
.due.over{color:#9C1B1B}
.due.soon{color:#7a601a}
.todo .mng{text-align:right;white-space:nowrap;position:relative}