/* DDC UI — shared design system for every staging page (customer + admin).
   Store palette: ink #1B2230, slate #4A6B8C, paper #F6F7F9, soft #E1E9F1. */
:root{
  --ink:#1B2230;--ink-2:#2A3446;--ink-3:#3A4558;
  --slate:#4A6B8C;--slate-dark:#374F6B;--slate-light:#8FA6BE;
  --soft:#E1E9F1;--soft-2:#EEF3F8;--paper:#F6F7F9;--white:#FFFFFF;
  --line:#DBE0E7;--line-2:#E8ECF1;--muted:#697384;--muted-2:#8A93A1;
  --ok:#2F7A55;--ok-bg:#E7F3EC;--warn:#94672A;--warn-bg:#FBF3E4;--bad:#A3333D;--bad-bg:#FBECEC;
  --r-sm:8px;--r:12px;--r-lg:18px;
  --shadow-sm:0 1px 2px rgba(27,34,48,.06);
  --shadow:0 1px 2px rgba(27,34,48,.05),0 10px 28px -12px rgba(27,34,48,.14);
  --font:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  color-scheme:light;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;min-width:320px;background:var(--paper);color:var(--ink);font:15px/1.55 var(--font);-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{margin:0 0 .5em;line-height:1.2;letter-spacing:-.02em;font-weight:750;color:var(--ink)}
h1{font-size:clamp(26px,3.6vw,34px);letter-spacing:-.03em}h2{font-size:19px}h3{font-size:16px}
p{margin:0 0 1em}a{color:var(--slate-dark)}
img{max-width:100%;display:block}
[hidden]{display:none!important}
:focus-visible{outline:3px solid var(--slate-light);outline-offset:2px}
::selection{background:var(--soft)}
hr{border:0;border-top:1px solid var(--line-2);margin:22px 0}

/* ---- form controls ---- */
button,input,select,textarea{font:inherit;color:inherit}
label{display:block;font-size:13px;font-weight:650;color:var(--ink-2);margin:14px 0 6px}
input:where(:not([type=checkbox]):not([type=radio]):not([type=file])),select,textarea{
  width:100%;min-height:44px;padding:10px 12px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--white);font-size:15px;transition:border-color .15s,box-shadow .15s}
textarea{min-height:88px;resize:vertical;line-height:1.5}
input::placeholder,textarea::placeholder{color:var(--muted-2)}
input:hover,select:hover,textarea:hover{border-color:#C7CFD9}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--slate);box-shadow:0 0 0 3px rgba(74,107,140,.18)}
input[readonly],textarea[readonly]{background:var(--paper)}
select{appearance:none;padding-right:36px;background-color:var(--white);
  background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);
  background-position:calc(100% - 19px) 52%,calc(100% - 14px) 52%;background-size:5px 5px;background-repeat:no-repeat}
input:where([type=checkbox]){width:18px;height:18px;accent-color:var(--slate);margin:0}
input:where([type=file]){width:100%;font-size:14px;color:var(--muted)}
input[type=file]::file-selector-button{font:600 14px var(--font);margin-right:12px;padding:9px 14px;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--white);color:var(--ink);cursor:pointer}

/* ---- buttons: plain <button> = secondary; .primary/.btn-primary = filled ink ---- */
button,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:40px;padding:8px 14px;
  border-radius:var(--r-sm);border:1px solid var(--line);background:var(--white);color:var(--ink);
  font-size:14px;font-weight:650;line-height:1.2;text-decoration:none;cursor:pointer;white-space:nowrap;
  transition:background .15s,border-color .15s,color .15s,transform .05s}
button:hover:not(:disabled),.btn:hover{background:var(--soft-2);border-color:#C9D3DE}
button:active:not(:disabled),.btn:active{transform:translateY(1px)}
button:disabled{opacity:.5;cursor:not-allowed}
.primary,.btn-primary,button.primary{background:var(--ink);border-color:var(--ink);color:var(--white)}
.primary:hover:not(:disabled),.btn-primary:hover{background:var(--ink-3);border-color:var(--ink-3)}
.btn-slate{background:var(--slate);border-color:var(--slate);color:var(--white)}
.btn-slate:hover{background:var(--slate-dark);border-color:var(--slate-dark)}
.btn-ghost{background:transparent;border-color:transparent;color:var(--slate-dark)}
.btn-ghost:hover{background:var(--soft-2)}
.btn-lg{min-height:50px;padding:12px 20px;font-size:15px;border-radius:10px}
.btn-sm{min-height:34px;padding:6px 11px;font-size:13px}
.btn-block{width:100%}

/* ---- surfaces ---- */
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-sm)}
.eyebrow,.overline{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--slate)}
.muted{color:var(--muted)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:3px 9px;border-radius:999px;font-size:12px;font-weight:650;background:var(--soft);color:var(--slate-dark);white-space:nowrap}
.badge.ok{background:var(--ok-bg);color:var(--ok)}.badge.warn{background:var(--warn-bg);color:var(--warn)}.badge.bad{background:var(--bad-bg);color:var(--bad)}
.notice{padding:12px 14px;border-radius:var(--r);border:1px solid var(--line);background:var(--white);font-size:14px;color:var(--ink-2);white-space:pre-wrap}
.notice[data-error=true]{background:var(--bad-bg);border-color:#EBC6CA;color:var(--bad)}
.notice[data-error=false]{background:var(--ok-bg);border-color:#C5E2D1;color:var(--ok)}

/* ---- brand ---- */
.ddc-logo{display:inline-flex;align-items:center;gap:10px;color:inherit;text-decoration:none}
.ddc-logo-mark{display:grid;place-items:center;width:36px;height:36px;border-radius:9px;background:var(--ink);color:var(--white);font-weight:800;font-size:13px;letter-spacing:-.02em}
.ddc-logo-text{display:flex;flex-direction:column;line-height:1.1}
.ddc-logo-text strong{font-size:15px;font-weight:750;letter-spacing:-.01em}
.ddc-logo-text small{font-size:11px;color:var(--muted);font-weight:600;letter-spacing:.04em}

/* ---- admin shell (shared by every /admin/* page) ---- */
.adm-bar{position:sticky;top:0;z-index:20;background:var(--ink);color:var(--white)}
.adm-bar-inner{max-width:1240px;margin:auto;padding:0 20px;min-height:60px;display:flex;align-items:center;gap:24px}
.adm-bar .ddc-logo-mark{background:var(--white);color:var(--ink)}
.adm-bar .ddc-logo-text small{color:var(--slate-light)}
.adm-tabs{display:flex;gap:4px;flex:1;min-width:0;overflow-x:auto;scrollbar-width:none}
.adm-tabs::-webkit-scrollbar{display:none}
.adm-tabs a{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:8px;color:#C9D3DE;font-size:14px;font-weight:600;text-decoration:none;white-space:nowrap}
.adm-tabs a:hover{background:rgba(255,255,255,.08);color:var(--white)}
.adm-tabs a[aria-current=page]{background:rgba(255,255,255,.12);color:var(--white)}
.adm-tabs svg{width:17px;height:17px;flex-shrink:0;opacity:.9}
.adm-user{display:flex;align-items:center;gap:10px;font-size:13px;color:#C9D3DE;white-space:nowrap}
.adm-user a{color:#C9D3DE;text-decoration:none;font-weight:600}.adm-user a:hover{color:var(--white)}
.adm-who{max-width:220px;overflow:hidden;text-overflow:ellipsis}
.adm-main{max-width:1240px;margin:auto;padding:28px 20px 56px}
.adm-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:22px}
.adm-head h1{margin:2px 0 6px;font-size:clamp(24px,3vw,30px)}
.adm-head p{margin:0;color:var(--muted);max-width:640px}
.adm-panel{background:var(--white);border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;box-shadow:var(--shadow-sm);min-width:0}
.adm-panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.adm-panel-head h2{margin:0;font-size:17px}
.adm-split{display:grid;grid-template-columns:minmax(300px,400px) minmax(0,1fr);gap:18px;align-items:start}
.adm-foot{max-width:1240px;margin:auto;padding:0 20px 28px;font-size:12px;color:var(--muted-2)}
@media(max-width:900px){
  .adm-bar-inner{flex-wrap:wrap;gap:6px 14px;padding:10px 14px 0}
  .adm-tabs{order:3;flex-basis:100%;margin:0 -14px;padding:0 10px 8px}
  .adm-user{margin-left:auto}
  .adm-main{padding:20px 14px 44px}
  .adm-split{grid-template-columns:1fr}
  .adm-panel{padding:16px;border-radius:var(--r)}
}
@media(max-width:520px){.adm-who{max-width:130px}.ddc-logo-text small{display:none}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}