/* Shared look for landing, account, checkout, team and admin: the course's "Business" design. */
:root{
  --paper:#F4F6F5; --surface:#FFFFFF; --ink:#14222B; --muted:#55646C; --line:#D8DFDE;
  --accent:#0E5A6B; --on-accent:#FFFFFF; --sun:#D9A441;
  --l1:#A9D0D3; --l2:#6FB3BB; --l3:#2F8997; --l4:#0E5A6B;
  --stage:#0F2A33; --stage-ink:#EEF4F4; --stage-muted:#A8C0C4;
  --good:#17754A; --warn:#8A5B00; --bad:#B8362B; --tint:#E4EDEC;
  --display:"Newsreader",Georgia,"Times New Roman",serif;
  --body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  --r:10px; --shadow:0 1px 2px rgba(20,34,43,.05),0 18px 40px -18px rgba(20,34,43,.22);
}
@media (prefers-color-scheme: dark){
  :root{
    --paper:#0B151A; --surface:#13222A; --ink:#E7EEEF; --muted:#9BAFB5; --line:#24373F;
    --accent:#6CC3CF; --on-accent:#0B151A; --stage:#071115; --tint:#1A2E36;
    --good:#5FCF9C; --warn:#E6BD63; --bad:#FF8E7E; color-scheme:dark;
    --shadow:0 1px 2px rgba(0,0,0,.3),0 18px 40px -18px rgba(0,0,0,.6);
  }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0}
body{background:var(--paper);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3{font-family:var(--display);font-weight:600;letter-spacing:-.015em;line-height:1.1;margin:0;text-wrap:balance}
p{margin:0}
a{color:var(--accent)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:6px}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}
.narrow{max-width:460px;margin:0 auto;padding:0 20px}
.muted{color:var(--muted)}
.eyebrow{font-size:.78rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.num{font-variant-numeric:tabular-nums}

/* top bar */
.top{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--paper) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.top-in{max-width:1160px;margin:0 auto;padding:10px 20px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.top .logo{margin-right:auto;display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.top nav{display:flex;gap:20px;align-items:center;flex-wrap:wrap}
.top nav a{color:var(--ink);text-decoration:none;font-weight:500;font-size:.95rem}
.top nav a:hover{color:var(--accent)}
.wlogo{height:36px;width:auto;display:block;flex:none}
.wlogo .wl-w{fill:var(--accent);font-family:"Newsreader",Georgia,serif;font-size:86px;font-weight:700}
.wlogo .wl-r{stroke:var(--muted);stroke-width:2;opacity:.5}
.wlogo .wl-c{fill:var(--ink);font-family:"IBM Plex Sans","Segoe UI",system-ui,sans-serif;font-size:29px;font-weight:500;letter-spacing:7.5px}
.who{font-size:.9rem;color:var(--muted)}
/* language switch: two flags, the current one in full colour */
.langs{display:inline-flex;align-items:center;gap:6px}
.flag{display:inline-flex;width:26px;height:18px;padding:0;border:0;background:none;border-radius:3px;overflow:hidden;box-shadow:0 0 0 1px var(--line);opacity:.4;filter:grayscale(.6);transition:opacity .12s,filter .12s;cursor:pointer;text-decoration:none}
.flag svg{width:100%;height:100%;display:block}
.flag:hover,.flag:focus-visible{opacity:.85;filter:none}
.flag[aria-current="true"]{opacity:1;filter:none;box-shadow:0 0 0 2px var(--accent);cursor:default}

/* buttons and fields */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:6px;background:var(--accent);color:var(--on-accent);font-weight:600;padding:12px 22px;font-size:1rem;text-decoration:none;transition:filter .12s}
.btn:hover{filter:brightness(1.1)}
.btn:disabled{opacity:.55;cursor:default;filter:none}
.btn.ghost{background:transparent;color:var(--ink);box-shadow:0 0 0 1.5px var(--line) inset}
.btn.ghost:hover{box-shadow:0 0 0 1.5px var(--ink) inset;filter:none}
.btn.small{padding:7px 14px;font-size:.88rem}
.btn.big{padding:15px 28px;font-size:1.08rem}
.linkbtn{background:none;border:0;padding:0;color:var(--accent);font-weight:600;font-size:.9rem;text-decoration:underline;text-underline-offset:3px}
.linkbtn.danger{color:var(--bad)}
label.f{display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:.92rem}
.field{border:1.5px solid var(--line);background:var(--surface);border-radius:6px;padding:11px 13px;width:100%;font-size:1rem;font-weight:400}
.field:focus{border-color:var(--accent);outline:0;box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 22%,transparent)}
textarea.field{min-height:96px;resize:vertical}
.hint{font-size:.85rem;color:var(--muted);font-weight:400}
.msg{font-size:.95rem;font-weight:600;min-height:1.5em}
.msg.err{color:var(--bad)} .msg.ok{color:var(--good)}

/* cards, tables, badges */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.stack{display:flex;flex-direction:column;gap:16px}
.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.spread{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px}
.kpi{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px 20px}
.kpi span{display:block;font-size:.78rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.kpi b{display:block;font-family:var(--display);font-weight:600;font-size:2rem;line-height:1.15;margin-top:4px;font-variant-numeric:tabular-nums}
.kpi small{color:var(--muted);font-size:.85rem}
.tablewrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--surface)}
table{border-collapse:collapse;width:100%;font-size:.93rem}
th,td{text-align:left;padding:11px 16px;border-bottom:1px solid var(--line);vertical-align:middle}
tr:last-child td{border-bottom:0}
th{font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:600;white-space:nowrap}
td.r,th.r{text-align:right}
td .sub{display:block;color:var(--muted);font-size:.82rem}
.badge{display:inline-block;border-radius:999px;padding:2px 10px;font-size:.78rem;font-weight:600;background:var(--tint);color:var(--ink);white-space:nowrap}
.badge.good{background:color-mix(in srgb,var(--good) 16%,transparent);color:var(--good)}
.badge.warn{background:color-mix(in srgb,var(--warn) 18%,transparent);color:var(--warn)}
.badge.bad{background:color-mix(in srgb,var(--bad) 14%,transparent);color:var(--bad)}
.bar{display:flex;align-items:center;gap:10px;min-width:150px}
.bar i{flex:1;height:8px;border-radius:8px;background:var(--line);overflow:hidden;display:block}
.bar i b{display:block;height:100%;border-radius:8px;background:var(--accent)}
.bar span{width:38px;text-align:right;font-variant-numeric:tabular-nums;font-weight:600;font-size:.88rem}
.empty{padding:36px 20px;text-align:center;color:var(--muted)}
.notice{border-left:4px solid var(--warn);background:var(--surface);border-radius:6px;padding:12px 16px;font-size:.93rem;border-top:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.tabs button{background:none;border:0;padding:10px 16px;font-weight:600;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-1px}
.tabs button[aria-selected="true"]{color:var(--ink);border-bottom-color:var(--accent)}
main.dash{padding:32px 0 72px;display:flex;flex-direction:column;gap:28px}
main.dash h1{font-size:clamp(1.8rem,4vw,2.6rem)}
pre.mail{white-space:pre-wrap;overflow-wrap:anywhere;font-family:var(--mono);font-size:.82rem;background:var(--paper);border-radius:6px;padding:12px;margin:8px 0 0}
@media (max-width:640px){ .top nav .hide-s{display:none} th,td{padding:10px 12px} }