/* ระบบสร้างจดหมายข่าว — สไตล์ส่วนจัดการ (รายการ / เข้าสู่ระบบ / ผู้ใช้) */
:root{
  --bg:#eef1f6; --panel:#ffffff; --panel-2:#f5f7fb; --line:#d9dfea; --fg:#1b2333; --muted:#5c6880;
  --accent:#1f4fa8; --accent-ink:#ffffff; --gold:#c49432; --ok:#1d7a46; --ok-bg:#e5f4ea; --bad:#b42318; --bad-bg:#fdecea; --warn:#a4561a;
  --ui:"Sarabun",system-ui,"Leelawadee UI",Tahoma,sans-serif;
  --display:"Prompt","Sarabun",system-ui,sans-serif;
  --r:10px;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#10141c; --panel:#181e2a; --panel-2:#1f2634; --line:#2c3547; --fg:#e7ebf3; --muted:#9aa6bd;
  --accent:#7aa5f5; --accent-ink:#0d1422; --gold:#e0b45a; --ok:#5cc58b; --ok-bg:#16301f; --bad:#ff8a7a; --bad-bg:#3a1a17; --warn:#f0a35e; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#10141c; --panel:#181e2a; --panel-2:#1f2634; --line:#2c3547; --fg:#e7ebf3; --muted:#9aa6bd;
  --accent:#7aa5f5; --accent-ink:#0d1422; --gold:#e0b45a; --ok:#5cc58b; --ok-bg:#16301f; --bad:#ff8a7a; --bad-bg:#3a1a17; --warn:#f0a35e; color-scheme:dark}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--fg);font-family:var(--ui);font-size:15px;line-height:1.55;min-height:100vh;display:flex;flex-direction:column}
a{color:var(--accent)}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.narrow{max-width:640px}
main{flex:1;padding-block:24px}
.nav{background:var(--panel);border-bottom:1px solid var(--line)}
.nav-in{display:flex;flex-wrap:wrap;gap:8px 20px;align-items:center;justify-content:space-between;padding-block:10px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700;font-size:1.1rem;color:var(--fg);text-decoration:none}
.brand-mark{width:28px;height:36px;border-radius:4px;background:linear-gradient(180deg,#0c2a6b 0 38%,var(--gold) 38% 52%,#1c4fa3 52%);box-shadow:inset 0 0 0 2px var(--gold)}
.nav nav{display:flex;flex-wrap:wrap;gap:6px 16px;align-items:center}
.nav nav a{text-decoration:none;color:var(--muted);font-weight:600}
.nav nav a:hover{color:var(--accent)}
.who{color:var(--fg);font-weight:600;padding-left:12px;border-left:1px solid var(--line)}
.foot{color:var(--muted);font-size:.85rem;padding-block:18px;border-top:1px solid var(--line)}
.page-bar{display:flex;flex-wrap:wrap;gap:12px;align-items:end;justify-content:space-between;margin-bottom:18px}
.page-title{font-family:var(--display);font-weight:700;font-size:1.5rem;margin:0;text-wrap:balance}
.muted{color:var(--muted);margin:0}
.center{text-align:center}
.bar-actions{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:18px}
.card-title{font-family:var(--display);font-weight:600;font-size:1.1rem;margin:0 0 6px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;font:inherit;font-weight:600;cursor:pointer;text-decoration:none;
  border-radius:8px;border:1px solid var(--line);background:var(--panel-2);color:var(--fg);padding:8px 14px;line-height:1.3}
.btn:hover{border-color:var(--accent)}
.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.btn.sm{padding:5px 10px;font-size:.86rem}
.btn.danger{color:var(--bad)}
.btn.danger:hover{border-color:var(--bad)}
.btn:disabled{opacity:.5;cursor:wait}
input,select,textarea{font:inherit;color:var(--fg);background:var(--panel-2);border:1px solid var(--line);border-radius:8px;padding:8px 10px;min-width:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.form{display:flex;flex-direction:column;gap:12px}
.form label{display:flex;flex-direction:column;gap:4px;font-weight:600;font-size:.9rem;color:var(--muted)}
.alert{padding:10px 14px;border-radius:8px;margin:0 0 14px;font-weight:600}
.alert.ok{background:var(--ok-bg);color:var(--ok)}
.alert.bad{background:var(--bad-bg);color:var(--bad)}
.search input{width:240px;max-width:100%}
/* grid of newsletters */
.grid{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:18px}
.tile{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;min-width:0}
.tile-img{display:grid;place-items:center;aspect-ratio:794/1123;max-width:100%;background:var(--panel-2) center/cover no-repeat;border-bottom:1px solid var(--line);color:var(--muted);text-decoration:none;font-size:.85rem}
.tile-body{padding:12px;display:flex;flex-direction:column;gap:2px;min-width:0}
.tile-title{font-family:var(--display);font-weight:600;color:var(--fg);text-decoration:none;overflow-wrap:anywhere}
.tile-title:hover{color:var(--accent)}
.tile-actions{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.empty{display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px;padding-block:40px}
.empty .muted{max-width:52ch}
.empty-sheet{width:84px;height:118px;border-radius:6px;background:linear-gradient(180deg,#0c2a6b 0 30%,var(--gold) 30% 40%,#1c4fa3 40% 100%);box-shadow:0 6px 18px rgba(12,42,107,.25);margin-bottom:6px}
/* login */
.login{display:grid;place-items:center;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.login-card{width:100%;max-width:420px}
.login-mark{width:52px;height:68px;border-radius:6px;background:linear-gradient(180deg,#0c2a6b 0 38%,var(--gold) 38% 52%,#1c4fa3 52%);box-shadow:inset 0 0 0 2px var(--gold)}
/* install checks */
.checks{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
.checks li{display:flex;justify-content:space-between;gap:12px;padding:8px 10px;border-radius:8px;background:var(--panel-2)}
.checks li small{color:var(--muted);text-align:right;overflow-wrap:anywhere}
.checks li.ok span::before{content:"✓ ";color:var(--ok)}
.checks li.bad span::before{content:"✕ ";color:var(--bad)}
.checks li.warn span::before{content:"! ";color:var(--warn)}
main.narrow>*+*{margin-top:16px}
/* users */
.two-col{display:grid;grid-template-columns:minmax(0,320px) minmax(0,1fr);gap:18px;align-items:start}
@media (max-width:860px){.two-col{grid-template-columns:minmax(0,1fr)}}
.table-wrap{overflow-x:auto;padding:0}
.tbl{width:100%;border-collapse:collapse;font-size:.92rem}
.tbl th,.tbl td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.tbl th{font-family:var(--display);font-weight:600;color:var(--muted);font-size:.85rem}
.tbl .num{text-align:right;font-variant-numeric:tabular-nums}
.inline{display:inline-flex;gap:6px;margin:0 6px 6px 0;flex-wrap:wrap}
.inline input{width:140px;padding:5px 8px;font-size:.86rem}