:root{--ink:#1d2733;--muted:#5d6b7a;--paper:#f6f8fa;--card:#ffffff;--navy:#12263f;--teal:#1f7a6d;--teal-soft:#e3f1ee;--warn:#a8433a;--warn-soft:#f8e1de;--line:#d9e0e7}
@media (prefers-color-scheme:dark){:root{--ink:#e3e9ef;--muted:#9aa8b6;--paper:#0f1823;--card:#16222f;--navy:#0b1520;--teal:#4fb8a6;--teal-soft:#16302d;--warn:#e07b70;--warn-soft:#3a1f1c;--line:#26364a}}
*{box-sizing:border-box}html,body{margin:0}
body{background:var(--paper);color:var(--ink);font:16px/1.5 "Public Sans",system-ui,-apple-system,"Segoe UI",sans-serif}
header{background:var(--navy);color:#fff;padding:calc(12px + env(safe-area-inset-top,0px)) 20px 12px;display:flex;align-items:center;gap:18px;flex-wrap:wrap}
header h1{font:600 21px/1.2 "Newsreader",Georgia,serif;margin:0}
header nav{display:flex;gap:4px;flex:1}
header nav a{color:#b9c6d4;text-decoration:none;padding:4px 10px;border-radius:6px;font-size:14px}
header nav a.on{background:#24405f;color:#fff}
header button{background:none;border:1px solid #47607c;color:#dbe5ef;border-radius:6px;padding:4px 10px;font:inherit;font-size:13px;cursor:pointer}
.btn{background:var(--teal);color:#fff;border:0;border-radius:8px;padding:9px 16px;font:600 15px "Public Sans",sans-serif;cursor:pointer}
.btn:disabled{opacity:.5;cursor:default}
.btn.ghost{background:none;color:var(--ink);border:1px solid var(--line)}
.btn.danger{background:var(--warn)}
:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
input,select,textarea{font:inherit;color:var(--ink);background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:8px 10px}
.hidden{display:none!important}
#login{max-width:380px;margin:12vh auto 0;padding:0 20px}
#login h2{font:600 30px/1.2 "Newsreader",Georgia,serif;margin:0 0 6px}
#login p{color:var(--muted);margin:0 0 18px}
#login input{width:100%;margin-bottom:12px;background:var(--card)}
#login .btn{width:100%;padding:12px}
.err{color:var(--warn);font-size:14px;min-height:20px;margin-top:8px}