:root{
  --navy:#12304F; --navy-deep:#0B2238; --ground:#F3F5F7; --surface:#FFFFFF;
  --line:#D9DEE4; --line-soft:#EEF1F4; --text:#1B2733; --muted:#56636F;
  --accent:#B4531A; --link:#1F5FA8;
  --ok-bg:#E2F0E5; --ok:#22552E; --warn-bg:#FFF3D6; --warn:#7A5300; --err-bg:#FBE4E1; --err:#8A1F12;
  --own-bg:#E3ECF7; --own:#123E70;
  --radius:12px;
  --font:'Barlow','Segoe UI',system-ui,sans-serif; --font-head:'Barlow Semi Condensed','Barlow','Segoe UI',sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{font-family:var(--font);font-size:16px;color:var(--text);background:var(--ground);line-height:1.45}
a{color:var(--link)} a:hover{color:#123E70}
h1,h2,h3,h4{color:var(--navy);margin:0 0 12px}
h2{font-size:20px} h3{font-size:17px} h4{font-size:15px}
code{font-size:13px;background:var(--line-soft);padding:1px 5px;border-radius:4px}
.muted{color:var(--muted)} .small{font-size:13px} .pad{padding:16px} .grow{flex:1}
:focus-visible{outline:3px solid #4C8BD6;outline-offset:2px}

/* ---------- Shell ---------- */
.shell{display:flex;min-height:100vh}
.side{width:236px;flex:0 0 236px;background:var(--navy);color:#fff;padding:22px 14px;display:flex;flex-direction:column;gap:26px;position:sticky;top:0;height:100vh;overflow-y:auto}
.brand{display:flex;flex-direction:column;padding:0 8px;text-decoration:none;color:#fff}
.brand-name{font-family:var(--font-head);font-weight:700;font-size:22px;letter-spacing:.04em;color:inherit}
.brand-sub{font-size:12px;color:#B9C7D6;letter-spacing:.08em}
.nav{display:flex;flex-direction:column;gap:4px}
.nav a{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:500;padding:11px 12px;border-radius:8px}
.nav a:hover{background:rgba(255,255,255,.1);color:#fff}
.nav a.on{background:#fff;color:var(--navy);font-weight:600}
.nav-admin{margin-top:14px;border-top:1px solid rgba(255,255,255,.15);padding-top:14px!important}
.main-col{flex:1;min-width:0;display:flex;flex-direction:column}
.top{display:flex;align-items:center;gap:16px;padding:12px 28px;background:var(--surface);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.search{flex:1;max-width:520px;display:flex;align-items:center;gap:8px;border:1px solid #C3CAD3;border-radius:8px;padding:0 12px;height:42px;color:var(--muted)}
.search input{border:0;outline:none;flex:1;font:inherit;background:transparent}
.top-right{margin-left:auto;display:flex;align-items:center;gap:8px}
.top-right form{margin:0}
.icon-btn{position:relative;width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--text);cursor:pointer}
.badge{position:absolute;top:4px;right:4px;min-width:16px;height:16px;padding:0 3px;border-radius:8px;background:var(--accent);color:#fff;font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center}
.me{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);padding:2px 8px;min-height:42px}
.avatar{width:36px;height:36px;border-radius:50%;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:14px}
.top-brand{display:none;font-family:var(--font-head);font-weight:700;font-size:19px;letter-spacing:.04em;color:var(--navy);text-decoration:none}
.me-text{display:flex;flex-direction:column;line-height:1.2}.me-name{font-weight:600}.me-role{font-size:12px;color:var(--muted)}
.content{padding:28px;max-width:1240px;width:100%}
.page-title{font-family:var(--font-head);font-size:30px;margin-bottom:6px}

/* ---------- Pieces ---------- */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin:16px 0}
.card.list{padding:0}
.card.narrow{max-width:520px}
.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:20px;align-items:start}
.grid-2>.card{margin:0}
.stack-cards>.card{margin:0 0 20px}
.row-between{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-top:8px}
.stack{display:flex;flex-direction:column;gap:14px}
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.form-grid .full{grid-column:1/-1}
label{display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:14px}
label.check{flex-direction:row;align-items:center;gap:10px;font-weight:500}
input,select{font:inherit;font-size:16px;font-weight:400;color:var(--text);border:1px solid #B8C0CA;border-radius:8px;padding:9px 11px;min-height:44px;background:#fff}
label input,label select{width:100%;min-width:0}
input[type=checkbox]{width:20px;height:20px;min-height:0;flex:none}
input:disabled{background:transparent}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:inherit;font-weight:600;min-height:44px;padding:0 18px;border-radius:8px;border:1px solid var(--navy);background:#fff;color:var(--navy);cursor:pointer;text-decoration:none}
.btn:hover{background:#EEF3F9;color:var(--navy)}
.btn-primary{background:var(--navy);color:#fff}.btn-primary:hover{background:var(--navy-deep);color:#fff}
.btn-ghost{border-color:var(--line);color:var(--muted)}
.btn-lg{min-height:52px;font-size:17px}
.btn:disabled{opacity:.45;cursor:not-allowed}
.btn-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:12px}
.btn-row form{margin:0}
.inline-form{display:flex;gap:8px}
.flash{padding:12px 16px;border-radius:8px;margin:0 0 16px;font-weight:500}
.flash-ok{background:var(--ok-bg);color:var(--ok)}
.flash-error{background:var(--err-bg);color:var(--err)}
.flash-warn{background:var(--warn-bg);color:var(--warn)}
.status{padding:10px 14px;border-radius:8px;margin:0 0 14px}
.status-ok{background:var(--ok-bg);color:var(--ok)} .status-error{background:var(--err-bg);color:var(--err)} .status-warn{background:var(--warn-bg);color:var(--warn)}
.pill{display:inline-block;font-size:12px;font-weight:700;padding:3px 8px;border-radius:6px;white-space:nowrap}
.pill-all{background:var(--ok-bg);color:var(--ok)} .pill-own{background:var(--own-bg);color:var(--own)}
.pill-none{background:var(--line-soft);color:var(--muted)} .pill-error{background:var(--err-bg);color:var(--err)}
.kv{display:grid;grid-template-columns:110px 1fr;gap:6px 12px;margin:0 0 16px}.kv dt{color:var(--muted)}.kv dd{margin:0;font-weight:600}
.tabs{display:flex;flex-wrap:wrap;gap:4px;border-bottom:1px solid var(--line);margin:12px 0 16px}
.tabs a{padding:10px 14px;text-decoration:none;color:var(--muted);font-weight:600;border-bottom:3px solid transparent;margin-bottom:-1px}
.tabs a.on{color:var(--navy);border-bottom-color:var(--navy)}
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:16px;margin-top:20px}
.tile{display:flex;flex-direction:column;gap:6px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;text-decoration:none;color:var(--text)}
.tile:hover{border-color:var(--navy);color:var(--text)}
.tile-icon{color:var(--navy)} .tile-name{font-weight:700;font-size:18px;color:var(--navy)} .tile-sub{font-size:14px;color:var(--muted)}
.tile-admin{background:#F7F9FB}
.perm-list{list-style:none;padding:0;margin:0}.perm-list li{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--line-soft)}
.list-row{display:flex;gap:16px;align-items:center;padding:14px 20px;border-bottom:1px solid var(--line-soft);text-decoration:none;color:var(--text)}
.list-row.unread{background:#F5F8FC}.list-row.unread strong{color:var(--navy)}
.test-result{font-weight:600;font-size:14px}.test-result.ok{color:var(--ok)}.test-result.err{color:var(--err)}
details summary{cursor:pointer;font-weight:600;color:var(--navy)}
.mod-head{display:flex;align-items:center;gap:8px;margin:20px 0 6px}

fieldset{border:1px solid var(--line);border-radius:10px;padding:14px 16px 16px;margin:0 0 16px;min-width:0}
legend{font-weight:700;color:var(--navy);padding:0 6px}
.mail-servers{gap:16px}
.mail-servers fieldset{margin:0}
.pair{display:grid;grid-template-columns:96px minmax(0,1fr);gap:12px}

/* ---------- Tables ---------- */
.table-wrap{overflow-x:auto;padding:0}
.table{width:100%;border-collapse:collapse;font-size:15px}
.table th{text-align:left;font-size:13px;color:var(--muted);font-weight:600;padding:12px 14px;border-bottom:1px solid var(--line);white-space:nowrap;background:#FAFBFC}
.table td{padding:10px 14px;border-bottom:1px solid var(--line-soft);vertical-align:middle}
.table tr.dim td{opacity:.55}
.perm-table td:first-child{width:55%}
.perm-table tr.overridden td{background:#FFF8E8}
.matrix-wrap{max-height:calc(100vh - 330px);min-height:360px;overflow:auto}
.matrix th{position:sticky;top:0;z-index:2}
.matrix .sticky-col{position:sticky;left:0;background:#fff;z-index:1;min-width:280px}
.matrix th.sticky-col{z-index:3;background:#FAFBFC}
.matrix .role-col{text-align:center;min-width:112px;white-space:normal}
.matrix td.cell{text-align:center}
.matrix select{min-height:36px;min-width:84px;padding:4px 8px;font-size:14px;font-weight:600}
.matrix select.cell-all{background:var(--ok-bg);color:var(--ok);border-color:#A7CDB0}
.matrix select.cell-own{background:var(--own-bg);color:var(--own);border-color:#A9C1E0}
.matrix select.cell-none{color:var(--muted)}
.mod-row td{background:#EEF2F7!important;font-weight:700;color:var(--navy)}
.sticky-save{position:sticky;bottom:0;background:linear-gradient(transparent,var(--ground) 30%);padding:16px 0 8px}

/* ---------- Auth pages ---------- */
.auth-body{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px;background:var(--navy)}
.auth-card{background:#fff;border-radius:16px;padding:32px;width:100%;max-width:420px}
.auth-brand{display:flex;flex-direction:column;margin-bottom:24px}
.auth-brand .brand-name{color:var(--navy)} .auth-brand .brand-sub{color:var(--muted)}

/* ---------- Phones: sidebar becomes a bottom tab bar ---------- */
@media (max-width:760px){
  .shell{flex-direction:column}
  .side{position:fixed;bottom:0;left:0;right:0;top:auto;height:auto;width:100%;flex:none;padding:6px 6px calc(6px + env(safe-area-inset-bottom));z-index:20;flex-direction:row;overflow-x:auto}
  .brand{display:none}
  .nav{flex-direction:row;gap:2px;min-width:100%;justify-content:space-around}
  .nav a{flex:0 0 auto;flex-direction:column;gap:2px;font-size:11px;padding:8px 6px;min-width:74px;text-align:center}
  .nav a span{white-space:nowrap}
  .nav-admin{margin:0;border:0;padding-top:8px!important}
  .top{padding:10px 14px;padding-top:calc(10px + env(safe-area-inset-top))}
  .search{display:none}
  .top-brand{display:block}
  .me-text{display:none}
  .content{padding:18px 14px 110px}
  .page-title{font-size:26px}
}