/* ============================================================
   DevCloud Africa — design system
   Enterprise device-cloud UI. Dense, technical, deliberate.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Sora:wght@500;600;700&family=Plus+Jakarta+Sans:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root{
  /* Structure */
  --ink:#0A0F1E;
  --ink-2:#111829;
  --ink-3:#1B2439;
  --canvas:#F5F6F8;
  --surface:#FFFFFF;
  --line:#E4E7EE;
  --line-2:#EFF1F5;

  /* Type */
  --tx-1:#0B1220;
  --tx-2:#59637A;
  --tx-3:#8C95A8;
  --tx-inv:#FFFFFF;

  /* Brand */
  --jade:#00A87E;
  --jade-2:#00c493;
  --jade-ink:#00654C;
  --jade-soft:#E4F6F0;
  --amber:#E8890C;
  --amber-soft:#FDF2E2;

  /* Signals */
  --ok:#0F9D58;      --ok-soft:#E6F5EC;
  --busy:#E8890C;    --busy-soft:#FDF2E2;
  --off:#98A1B2;     --off-soft:#F1F3F6;
  --err:#D93B30;     --err-soft:#FCEDEC;
  --info:#2F6BE4;    --info-soft:#EAF1FE;
  --violet:#6D4AE0;  --violet-soft:#F0EBFD;

  --f-display:'Sora',system-ui,sans-serif;
  --f-ui:'Plus Jakarta Sans',system-ui,sans-serif;
  --f-mono:'JetBrains Mono',ui-monospace,monospace;

  --r-sm:6px; --r:9px; --r-lg:13px; --r-xl:18px;
  --sh-1:0 1px 2px rgba(11,18,32,.05);
  --sh-2:0 4px 14px -4px rgba(11,18,32,.12);
  --sh-3:0 18px 44px -14px rgba(11,18,32,.26);
  --sidebar-w:236px;
}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}
body{
  font-family:var(--f-ui);
  background:var(--canvas);
  color:var(--tx-1);
  font-size:14px;
  line-height:1.45;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:#D3D8E2;border-radius:9px;border:2px solid var(--canvas)}
::-webkit-scrollbar-thumb:hover{background:#B9C0CE}

/* ============ App shell ============ */
.app{display:grid;grid-template-columns:var(--sidebar-w) 1fr;height:100vh;overflow:hidden}

.side{
  background:var(--ink);
  display:flex;flex-direction:column;
  border-right:1px solid #060A14;
  position:relative;
}
/* faint technical grid texture — subtle product character */
.side::before{
  content:'';position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px);
  background-size:100% 28px;
}

.brand{display:flex;align-items:center;gap:10px;padding:18px 18px 16px;position:relative}
.mark{
  width:32px;height:32px;border-radius:9px;flex:0 0 auto;
  background:linear-gradient(150deg,var(--jade-2),var(--jade) 55%,#00795c);
  display:grid;place-items:center;position:relative;overflow:hidden;
  box-shadow:0 4px 12px -3px rgba(0,168,126,.6);
}
.mark::after{content:'';position:absolute;inset:0;background:radial-gradient(circle at 32% 26%,rgba(255,255,255,.55),transparent 62%)}
.mark svg{width:17px;height:17px;position:relative;z-index:1}
.brand-tx{line-height:1.1}
.brand-tx b{display:block;font-family:var(--f-display);font-weight:700;font-size:14.5px;color:#fff;letter-spacing:-.015em}
.brand-tx span{display:block;font-family:var(--f-mono);font-size:9px;font-weight:700;letter-spacing:.18em;color:var(--jade-2);margin-top:2px}

.nav{flex:1;overflow-y:auto;padding:6px 10px 14px;position:relative}
.nav::-webkit-scrollbar-thumb{background:#20293C;border-color:var(--ink)}
.nav-lbl{
  font-family:var(--f-mono);font-size:9px;font-weight:700;letter-spacing:.16em;
  text-transform:uppercase;color:#586179;padding:16px 10px 6px;
}
.nav-i{
  display:flex;align-items:center;gap:10px;
  padding:8px 10px;border-radius:var(--r);margin-bottom:1px;
  color:#A7B0C2;font-size:13px;font-weight:500;
  position:relative;transition:background .13s,color .13s;
}
.nav-i svg{width:16px;height:16px;flex:0 0 auto;stroke-width:1.9}
.nav-i:hover{background:rgba(255,255,255,.05);color:#E6EAF2}
.nav-i.on{background:rgba(0,168,126,.13);color:#fff}
.nav-i.on::before{
  content:'';position:absolute;left:-10px;top:7px;bottom:7px;width:3px;
  border-radius:0 3px 3px 0;background:var(--jade-2);
}
.nav-i .ct{
  margin-left:auto;font-family:var(--f-mono);font-size:10px;font-weight:700;
  background:rgba(255,255,255,.09);color:#C6CDDB;padding:1px 6px;border-radius:20px;
}
.nav-i.on .ct{background:var(--jade);color:#04241C}

.side-foot{padding:12px 14px;border-top:1px solid rgba(255,255,255,.07);position:relative}
.node{display:flex;align-items:center;gap:8px;font-size:11px;color:#8F98AB}
.node b{color:#D6DBE5;font-weight:600;font-family:var(--f-mono);font-size:10.5px;letter-spacing:.04em}
.beat{width:6px;height:6px;border-radius:50%;background:var(--jade-2);flex:0 0 auto;position:relative}
.beat::after{content:'';position:absolute;inset:-3px;border-radius:50%;border:1.5px solid var(--jade-2);opacity:.55;animation:beat 2s infinite}
@keyframes beat{0%{transform:scale(.7);opacity:.6}100%{transform:scale(2.1);opacity:0}}

/* ============ Main ============ */
.main{display:flex;flex-direction:column;overflow:hidden;min-width:0}
.top{
  height:56px;flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:0 22px;background:var(--surface);border-bottom:1px solid var(--line);
}
.crumb{display:flex;align-items:center;gap:7px;font-size:13px;color:var(--tx-3);min-width:0}
.crumb b{color:var(--tx-1);font-weight:600}
.crumb svg{width:13px;height:13px;opacity:.5}
.top-r{display:flex;align-items:center;gap:9px}

.chip{
  display:inline-flex;align-items:center;gap:7px;height:32px;padding:0 11px;
  border:1px solid var(--line);border-radius:var(--r);background:var(--surface);
  font-size:12px;font-weight:600;color:var(--tx-2);white-space:nowrap;
}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--jade)}
.who{display:flex;align-items:center;gap:8px;padding:0 4px 0 11px;height:32px;border:1px solid var(--line);border-radius:var(--r);font-size:12.5px;font-weight:600}
.av{
  width:24px;height:24px;border-radius:6px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--violet),#4c7ff0);color:#fff;
  font-size:11px;font-weight:700;font-family:var(--f-display);
}

.scroll{flex:1;overflow-y:auto;min-height:0}
.wrap{padding:22px 24px 60px;max-width:1560px}

/* ============ Page head ============ */
.phead{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:18px;flex-wrap:wrap}
h1.pt{font-family:var(--f-display);font-size:22px;font-weight:600;letter-spacing:-.03em}
.psub{font-size:13px;color:var(--tx-2);margin-top:3px}

/* ============ Toolbar / filters ============ */
.bar{
  display:flex;align-items:center;gap:9px;flex-wrap:wrap;
  padding:11px 13px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);margin-bottom:16px;
}
.bar .sep{width:1px;height:22px;background:var(--line);margin:0 2px}
.bar .grow{flex:1}
.flbl{font-family:var(--f-mono);font-size:9.5px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--tx-3);margin-right:2px}

.search{position:relative;flex:0 1 280px;min-width:180px}
.search svg{position:absolute;left:10px;top:50%;transform:translateY(-50%);width:15px;height:15px;color:var(--tx-3)}
.search input{
  width:100%;height:34px;padding:0 11px 0 32px;border:1px solid var(--line);
  border-radius:var(--r);background:var(--surface);outline:none;font-size:13px;transition:border-color .14s,box-shadow .14s;
}
.search input:focus{border-color:var(--jade);box-shadow:0 0 0 3px var(--jade-soft)}
.search input::placeholder{color:var(--tx-3)}

.sel{
  height:34px;padding:0 30px 0 11px;border:1px solid var(--line);border-radius:var(--r);
  background:var(--surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238C95A8' stroke-width='2.4' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E") no-repeat right 9px center/13px;
  appearance:none;font-size:12.5px;font-weight:600;color:var(--tx-2);cursor:pointer;outline:none;
}
.sel:focus{border-color:var(--jade)}
.sel.on{border-color:var(--jade);color:var(--jade-ink);background-color:var(--jade-soft)}

.vt{display:flex;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;height:34px}
.vt button{width:34px;display:grid;place-items:center;color:var(--tx-3);border-right:1px solid var(--line)}
.vt button:last-child{border-right:none}
.vt button svg{width:15px;height:15px}
.vt button.on{background:var(--ink);color:#fff}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  height:34px;padding:0 14px;border-radius:var(--r);
  font-size:13px;font-weight:600;white-space:nowrap;
  border:1px solid transparent;transition:.14s;
}
.btn svg{width:15px;height:15px}
.btn-p{background:var(--jade);color:#fff;box-shadow:0 2px 8px -2px rgba(0,168,126,.5)}
.btn-p:hover{background:var(--jade-2);box-shadow:0 4px 14px -3px rgba(0,168,126,.55)}
.btn-d{background:var(--ink);color:#fff}
.btn-d:hover{background:var(--ink-3)}
.btn-o{background:var(--surface);border-color:var(--line);color:var(--tx-1)}
.btn-o:hover{border-color:var(--tx-3);background:#FAFBFC}
.btn-g{background:transparent;color:var(--tx-2)}
.btn-g:hover{background:var(--line-2);color:var(--tx-1)}
.btn-r{background:var(--err-soft);color:var(--err);border-color:#F6CFCC}
.btn-r:hover{background:#F9DEDC}
.btn-sm{height:29px;padding:0 11px;font-size:12px;border-radius:var(--r-sm)}
.btn-xs{height:25px;padding:0 9px;font-size:11px;border-radius:var(--r-sm)}
.btn:disabled{opacity:.45;cursor:not-allowed;box-shadow:none}
.btn-block{width:100%}

/* ============ Status ============ */
.st{
  display:inline-flex;align-items:center;gap:6px;
  height:22px;padding:0 9px;border-radius:5px;
  font-size:11px;font-weight:700;letter-spacing:.01em;white-space:nowrap;
}
.st i{width:6px;height:6px;border-radius:50%;background:currentColor;flex:0 0 auto;position:relative;font-style:normal}
.st-ok{background:var(--ok-soft);color:#0B7A44}
.st-ok i::after{content:'';position:absolute;inset:-3px;border-radius:50%;border:1.5px solid currentColor;opacity:.5;animation:beat 2s infinite}
.st-busy{background:var(--busy-soft);color:#A85F00}
.st-mine{background:var(--info-soft);color:#1D4FB8}
.st-mine i::after{content:'';position:absolute;inset:-3px;border-radius:50%;border:1.5px solid currentColor;opacity:.5;animation:beat 2s infinite}
.st-off{background:var(--off-soft);color:#6C7689}

/* ============ Device grid ============ */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(268px,1fr));gap:14px}
.dev{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:14px;display:flex;flex-direction:column;
  transition:border-color .15s,box-shadow .18s,transform .18s;position:relative;
}
.dev:hover{border-color:#C9D0DC;box-shadow:var(--sh-2)}
.dev.locked{background:#FBFBFC}
.dev.locked .dev-body{opacity:.5;filter:saturate(.35)}
.dev.mine{border-color:#B9CDF6;box-shadow:0 0 0 3px var(--info-soft)}

.dev-top{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:12px}
.dev-acts{display:flex;align-items:center;gap:2px}
.ico{
  width:26px;height:26px;border-radius:var(--r-sm);display:grid;place-items:center;
  color:var(--tx-3);transition:.13s;
}
.ico svg{width:15px;height:15px}
.ico:hover{background:var(--line-2);color:var(--tx-1)}
.ico.p{color:var(--jade)}
.ico.p:hover{background:var(--jade-soft)}

.dev-body{display:flex;gap:12px;align-items:flex-start}
.thumb{
  width:44px;height:66px;border-radius:7px;flex:0 0 auto;position:relative;
  background:linear-gradient(165deg,#20293D,#0E1524);
  border:1px solid #2C3547;
  display:grid;place-items:center;overflow:hidden;
}
.thumb::before{
  content:'';position:absolute;inset:3px;border-radius:4px;
  background:linear-gradient(150deg,rgba(0,196,147,.22),rgba(45,110,230,.16) 60%,transparent);
}
.thumb::after{content:'';position:absolute;top:5px;left:50%;transform:translateX(-50%);width:12px;height:2px;border-radius:2px;background:rgba(255,255,255,.22)}
.thumb b{position:relative;z-index:1;font-family:var(--f-mono);font-size:8.5px;font-weight:700;color:rgba(255,255,255,.8);letter-spacing:.04em}

.dev-meta{min-width:0;flex:1}
.dev-n{font-size:14px;font-weight:700;letter-spacing:-.01em;margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.dev-tag{font-family:var(--f-mono);font-size:9.5px;font-weight:700;letter-spacing:.1em;color:var(--jade);margin-bottom:6px}
.dev-spec{font-size:11.5px;color:var(--tx-2);line-height:1.6}
.dev-spec .m{font-family:var(--f-mono);font-size:10.5px;color:var(--tx-3)}

.dev-foot{margin-top:12px;padding-top:11px;border-top:1px solid var(--line-2)}
.lockbox{display:flex;align-items:center;gap:8px;font-size:11.5px;color:var(--tx-2)}
.lockbox .who2{display:flex;align-items:center;gap:6px;font-weight:700;color:var(--tx-1)}
.mini-av{width:19px;height:19px;border-radius:5px;display:grid;place-items:center;background:var(--ink-3);color:#fff;font-size:9.5px;font-weight:700}
.tleft{margin-left:auto;font-family:var(--f-mono);font-size:11px;font-weight:700;color:var(--busy)}
.tleft.mine{color:var(--info)}

/* progress bar for booking */
.bkbar{height:3px;border-radius:3px;background:var(--line-2);overflow:hidden;margin-top:8px}
.bkbar i{display:block;height:100%;border-radius:3px;background:var(--busy);transition:width 1s linear}
.bkbar.mine i{background:var(--info)}

/* ============ Table (list view) ============ */
.tbl{width:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;border-collapse:collapse}
.tbl thead th{
  text-align:left;padding:9px 14px;background:#FAFBFC;border-bottom:1px solid var(--line);
  font-family:var(--f-mono);font-size:9.5px;font-weight:700;letter-spacing:.12em;
  text-transform:uppercase;color:var(--tx-3);white-space:nowrap;
}
.tbl tbody td{padding:11px 14px;border-bottom:1px solid var(--line-2);font-size:13px;vertical-align:middle}
.tbl tbody tr:last-child td{border-bottom:none}
.tbl tbody tr:hover{background:#FBFCFD}
.tbl .mono{font-family:var(--f-mono);font-size:11.5px;color:var(--tx-2)}
.tbl .nm{font-weight:600}

/* ============ Stat cards ============ */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;margin-bottom:20px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:15px 16px;position:relative;overflow:hidden}
.stat::after{content:'';position:absolute;left:0;top:0;bottom:0;width:3px}
.stat.a::after{background:var(--jade)} .stat.b::after{background:var(--info)}
.stat.c::after{background:var(--amber)} .stat.d::after{background:var(--violet)}
.stat-l{font-family:var(--f-mono);font-size:9.5px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--tx-3);margin-bottom:9px}
.stat-v{font-family:var(--f-display);font-size:29px;font-weight:600;letter-spacing:-.035em;line-height:1}
.stat-s{font-size:11.5px;color:var(--tx-2);margin-top:5px}

/* ============ Panels ============ */
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.panel-h{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:13px 16px;border-bottom:1px solid var(--line)}
.panel-t{font-family:var(--f-display);font-size:14px;font-weight:600;letter-spacing:-.015em}
.panel-b{padding:16px}

/* ============ Empty ============ */
.empty{padding:56px 24px;text-align:center;grid-column:1/-1}
.empty-i{width:46px;height:46px;border-radius:12px;background:var(--line-2);display:grid;place-items:center;margin:0 auto 14px;color:var(--tx-3)}
.empty-i svg{width:22px;height:22px}
.empty h3{font-family:var(--f-display);font-size:16px;font-weight:600;margin-bottom:6px}
.empty p{font-size:13px;color:var(--tx-2);max-width:400px;margin:0 auto;line-height:1.55}

.spin{width:15px;height:15px;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;animation:sp .65s linear infinite;display:inline-block}
.spin.dk{border-color:var(--line);border-top-color:var(--jade)}
@keyframes sp{to{transform:rotate(360deg)}}

/* ============ Modal ============ */
.ov{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;padding:22px;background:rgba(10,15,30,.45);backdrop-filter:blur(3px)}
.ov.on{display:flex;animation:fade .16s}
@keyframes fade{from{opacity:0}to{opacity:1}}
.dlg{background:var(--surface);border-radius:var(--r-xl);width:min(94vw,410px);box-shadow:var(--sh-3);overflow:hidden;animation:pop .22s cubic-bezier(.2,.9,.3,1)}
@keyframes pop{from{opacity:0;transform:translateY(10px) scale(.98)}to{opacity:1;transform:none}}
.dlg-h{padding:17px 20px 0}
.dlg-t{font-family:var(--f-display);font-size:16.5px;font-weight:600;letter-spacing:-.02em}
.dlg-s{font-size:12.5px;color:var(--tx-2);margin-top:4px}
.dlg-b{padding:17px 20px}
.dlg-f{padding:13px 20px;background:#FAFBFC;border-top:1px solid var(--line);display:flex;gap:8px;justify-content:flex-end}

.opts{display:grid;grid-template-columns:repeat(4,1fr);gap:7px}
.opt{
  padding:11px 6px;border:1.5px solid var(--line);border-radius:var(--r);
  text-align:center;cursor:pointer;transition:.13s;background:var(--surface);
}
.opt b{display:block;font-family:var(--f-display);font-size:15px;font-weight:600}
.opt span{display:block;font-size:10px;color:var(--tx-3);margin-top:1px}
.opt:hover{border-color:var(--tx-3)}
.opt.on{border-color:var(--jade);background:var(--jade-soft);color:var(--jade-ink)}
.opt.on span{color:var(--jade-ink);opacity:.75}

/* ============ Toast ============ */
.toast{
  position:fixed;bottom:20px;left:50%;transform:translateX(-50%) translateY(14px);
  z-index:300;background:var(--ink);color:#fff;font-size:13px;font-weight:600;
  padding:11px 18px;border-radius:var(--r);opacity:0;transition:.22s;
  box-shadow:var(--sh-3);max-width:84vw;pointer-events:none;
}
.toast.on{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.ok{background:#0B7A44}
.toast.err{background:var(--err)}

@media (max-width:900px){
  :root{--sidebar-w:0px}
  .app{grid-template-columns:1fr}
  .side{display:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
}

/* ============ Skeletons ============
   Placeholders that mirror the shape of the real component, so the layout
   doesn't jump when data lands. The global prefers-reduced-motion rule above
   already strips the shimmer for anyone who asked for that. */
.sk{
  display:block;border-radius:var(--r-sm);
  background:linear-gradient(90deg,var(--line-2) 25%,#E6EAF1 37%,var(--line-2) 63%);
  background-size:400% 100%;
  animation:sk 1.4s ease-in-out infinite;
}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}
.sk-l{height:10px}
.sk-l.w40{width:40%} .sk-l.w55{width:55%} .sk-l.w70{width:70%} .sk-l.w85{width:85%}
.sk-title{height:14px;width:55%;border-radius:5px}
.sk-pill{height:22px;width:78px;border-radius:5px}
.sk-btn{height:29px;border-radius:var(--r-sm)}
.sk-thumb{width:44px;height:66px;border-radius:7px;flex:0 0 auto}
.sk-stack>*{margin-bottom:7px}
.sk-stack>*:last-child{margin-bottom:0}

/* a skeleton device card, dimensionally identical to .dev */
.sk-dev{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:14px;display:flex;flex-direction:column;gap:12px;
}
.sk-dev-body{display:flex;gap:12px;align-items:flex-start}
.sk-dev-meta{flex:1;min-width:0}

/* skeleton stat tile, dimensionally identical to .stat */
.sk-stat{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:15px 16px;position:relative;overflow:hidden;
}
.sk-stat::after{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--line)}

.sk-row{display:flex;align-items:center;gap:11px;padding:11px 14px;border-bottom:1px solid var(--line-2)}
.sk-row:last-child{border-bottom:none}

/* ============ Tooltips ============
   For icon-only controls. The native title attribute is slow to appear,
   unstyled, and inconsistent across platforms; this is instant and matches
   the rest of the UI. Driven by data-tip, and shown on focus as well as
   hover so it is reachable by keyboard. */
.tt{
  position:fixed;z-index:500;pointer-events:none;
  background:var(--ink);color:#fff;font-size:11.5px;font-weight:600;line-height:1.4;
  padding:6px 9px;border-radius:var(--r-sm);white-space:nowrap;
  box-shadow:var(--sh-2);opacity:0;transform:translateY(3px);
  transition:opacity .12s ease,transform .12s ease;max-width:260px;
}
.tt.on{opacity:1;transform:translateY(0)}
.tt::after{
  content:'';position:absolute;left:50%;margin-left:-4px;border:4px solid transparent;
}
.tt.below::after{top:-8px;border-bottom-color:var(--ink)}
.tt.above::after{bottom:-8px;border-top-color:var(--ink)}

/* visible only to screen readers — used to announce loading states */
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}