/* ============================================================
   Vibe Tiko admin portal — light, professional design system.
   Mirrors the Next.js storefront tokens. No gradients.
   ============================================================ */
:root{
  --canvas:#ffffff; --surface:#f6f7f9; --surface-2:#eef0f3;
  --ink:#14171f; --ink-soft:#5a6472; --ink-faint:#8b94a1;
  --line:#e4e7ec; --line-strong:#d3d8df;
  --brand:#2350d9; --brand-strong:#1b40b0; --brand-soft:#eef2fe;
  --mpesa:#1aa64b; --success:#1a8245; --warning:#b4690e; --danger:#c0341d;
  --radius:0.75rem;
  --shadow-sm:0 1px 2px rgb(16 24 40 / .06);
  --shadow-card:0 1px 3px rgb(16 24 40 / .08), 0 1px 2px rgb(16 24 40 / .05);
  --font-sans:"Inter",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-display:"Plus Jakarta Sans",var(--font-sans);
}
*{box-sizing:border-box}
body{margin:0;background:var(--surface);color:var(--ink);font-family:var(--font-sans);
  font-size:14px;line-height:1.55;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:var(--font-display);letter-spacing:-0.02em;margin:0}
a{color:inherit;text-decoration:none}
img{max-width:100%}
main{min-height:calc(100vh - 60px)}

/* ---- Top bar ---- */
.topbar{display:flex;align-items:center;justify-content:space-between;height:60px;
  padding:0 24px;background:var(--canvas);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:20}
.brand{display:flex;align-items:center;gap:9px}
.brand-word{font-family:var(--font-display);font-weight:800;font-size:18px;letter-spacing:-0.02em}
.brand-word span{color:var(--brand)}
.brand-tag{margin-left:4px;padding:2px 8px;border:1px solid var(--line-strong);border-radius:999px;
  font-size:11px;font-weight:600;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.05em}
.topbar-user{display:flex;align-items:center;gap:12px;font-size:13px}
.topbar-user .who{font-weight:600;color:var(--ink-soft)}
.role-badge{padding:3px 9px;border-radius:999px;background:var(--brand-soft);color:var(--brand);
  font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.04em}

/* ---- Buttons ---- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;cursor:pointer;
  font-weight:600;font-size:14px;border-radius:8px;border:1px solid transparent;
  padding:9px 16px;transition:background-color .15s,border-color .15s,color .15s;font-family:inherit}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-strong)}
.btn-outline{background:var(--canvas);color:var(--ink);border-color:var(--line-strong)}
.btn-outline:hover{background:var(--surface);border-color:var(--ink-faint)}
.btn-sm{padding:6px 12px;font-size:13px}
.btn-block{width:100%}
.btn:disabled{opacity:.55;cursor:not-allowed}

/* ---- Admin shell ---- */
.admin{display:grid;grid-template-columns:220px 1fr;min-height:calc(100vh - 60px)}
.admin .side{background:var(--canvas);border-right:1px solid var(--line);padding:16px 12px}
.admin .side a{display:block;padding:9px 12px;margin-bottom:2px;border-radius:8px;cursor:pointer;
  color:var(--ink-soft);font-weight:600;font-size:13.5px}
.admin .side a:hover{background:var(--surface)}
.admin .side a.active{background:var(--brand-soft);color:var(--brand)}
.admin .content{padding:28px 32px;max-width:1100px}
.admin .content h2{font-size:22px;margin-bottom:4px}

/* ---- Stats ---- */
.stats{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px;margin:20px 0 28px}
.stat{background:var(--canvas);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow-sm)}
.stat .n{font-family:var(--font-display);font-size:26px;font-weight:800;letter-spacing:-0.02em}
.stat .l{color:var(--ink-soft);font-size:13px;margin-top:4px}

/* ---- Tables ---- */
table{width:100%;border-collapse:collapse;background:var(--canvas);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;font-size:13.5px}
th,td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--line)}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover{background:var(--surface)}
th{background:var(--surface);color:var(--ink-soft);font-weight:600;font-size:11.5px;
  text-transform:uppercase;letter-spacing:.04em}
td a.muted{color:var(--brand);font-weight:600}

/* ---- Pills ---- */
.pill{display:inline-block;padding:3px 10px;border-radius:999px;font-size:11.5px;font-weight:700;text-transform:capitalize}
.pill.valid{background:rgb(26 130 69 / .12);color:var(--success)}
.pill.checked_in{background:var(--surface-2);color:var(--ink-soft)}

/* ---- Forms ---- */
.form{max-width:420px;margin:48px auto;background:var(--canvas);border:1px solid var(--line);
  border-radius:var(--radius);padding:28px;box-shadow:var(--shadow-card)}
.form h1{font-size:24px;margin-bottom:4px}
.form .sub{color:var(--ink-soft);margin-bottom:18px;font-size:14px}
label{display:block;font-size:13px;font-weight:600;color:var(--ink-soft);margin:14px 0 6px}
input,select,textarea{width:100%;padding:10px 12px;border:1px solid var(--line-strong);border-radius:8px;
  background:var(--canvas);color:var(--ink);font-family:inherit;font-size:14px}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-soft)}

/* ---- Feedback ---- */
.flash{background:rgb(180 105 14 / .1);border:1px solid rgb(180 105 14 / .3);color:var(--warning);
  padding:10px 12px;border-radius:8px;font-size:13.5px;margin-bottom:16px}
.err{background:rgb(192 52 29 / .08);border:1px solid rgb(192 52 29 / .3);color:var(--danger);
  padding:10px 12px;border-radius:8px;font-size:13.5px;margin:12px 0;display:none}
.err.show{display:block}
.muted{color:var(--ink-soft)}
.center{text-align:center}
.tabs{display:flex;gap:8px;margin-bottom:18px;flex-wrap:wrap}

/* ---- Modals ---- */
.modal-overlay{position:fixed;inset:0;background:rgb(20 23 31 / .5);backdrop-filter:blur(2px);
  z-index:50;display:none;align-items:center;justify-content:center;overflow:auto;padding:24px}
.modal-overlay.show{display:flex}

/* ---- Spinner ---- */
.spinner{width:38px;height:38px;border:3px solid var(--line);border-top-color:var(--brand);
  border-radius:50%;animation:spin .8s linear infinite;margin:40px auto}
@keyframes spin{to{transform:rotate(360deg)}}

@media(max-width:820px){
  .admin{grid-template-columns:1fr}
  .admin .side{border-right:0;border-bottom:1px solid var(--line);display:flex;gap:4px;overflow-x:auto}
  .admin .side a{white-space:nowrap}
}