/* HSE theme: photo backdrop under a calm scrim; all text sits on solid-ish cards for readability */
:root{
 --bg:#e9eef3;--scrim:rgba(233,238,243,.62);--sheet:rgba(250,252,253,.94);--sheet2:#eef3f7;--ink:#14212e;--mute:#4b5b6b;--line:#c9d4de;
 --accent:#0b5a8f;--accent-ink:#ffffff;--accentSoft:#dcebf6;--ok:#16743f;--okSoft:#dcf1e4;--bad:#b3261e;--badSoft:#fbe4e1;--flag:#a95300;--flagSoft:#fdebd3;--hi:#f4c20d;
 --shadow:0 2px 4px rgba(10,25,40,.08),0 10px 30px rgba(10,25,40,.12);
 --f:'Vazirmatn',Tahoma,'Segoe UI','DejaVu Sans',sans-serif}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
 --bg:#0d141c;--scrim:rgba(8,14,21,.72);--sheet:rgba(22,31,42,.95);--sheet2:#1b2735;--ink:#e8edf2;--mute:#a4b1be;--line:#33445a;
 --accent:#ffcf4a;--accent-ink:#1a1500;--accentSoft:#33301b;--ok:#6fdc9c;--okSoft:#17382a;--bad:#ff9a90;--badSoft:#3d1c1a;--flag:#ffb072;--flagSoft:#3d2a16;--hi:#ffcf4a;--shadow:0 10px 30px rgba(0,0,0,.45);color-scheme:dark}}
:root[data-theme="dark"]{
 --bg:#0d141c;--scrim:rgba(8,14,21,.72);--sheet:rgba(22,31,42,.95);--sheet2:#1b2735;--ink:#e8edf2;--mute:#a4b1be;--line:#33445a;
 --accent:#ffcf4a;--accent-ink:#1a1500;--accentSoft:#33301b;--ok:#6fdc9c;--okSoft:#17382a;--bad:#ff9a90;--badSoft:#3d1c1a;--flag:#ffb072;--flagSoft:#3d2a16;--hi:#ffcf4a;--shadow:0 10px 30px rgba(0,0,0,.45);color-scheme:dark}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--f);font-size:16px;line-height:1.9;direction:rtl;padding-inline:16px;padding-block:0 28px;position:relative;min-height:100vh}
body::before{content:"";position:fixed;inset:0;z-index:-2;background:url(/assets/bg.jpg) center/cover no-repeat}
body::after{content:"";position:fixed;inset:0;z-index:-1;background:var(--scrim)}
:root[data-bg="off"] body::before{display:none}
:root[data-bg="off"] body::after{background:var(--bg)}
button{font-family:inherit;font-size:inherit;color:inherit;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:1rem;background:var(--sheet2);color:var(--ink);border:1px solid var(--line);border-radius:8px;padding:6px 10px}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.wrap{max-width:1080px;margin-inline:auto}
.bar{position:sticky;top:env(safe-area-inset-top,0px);z-index:5;background:var(--sheet);backdrop-filter:blur(8px);padding:8px 16px;display:flex;gap:10px;align-items:center;flex-wrap:wrap;border:1px solid var(--line);border-radius:0 0 14px 14px;margin-inline:-6px;box-shadow:var(--shadow)}
.brand{font-weight:800;font-size:1.05rem;margin-inline-end:auto;display:flex;gap:8px;align-items:center}
.brand i{width:12px;height:12px;border-radius:3px;background:var(--hi);display:inline-block;box-shadow:0 0 0 2px var(--ink) inset}
.chip{font-variant-numeric:tabular-nums;background:var(--sheet2);border:1px solid var(--line);border-radius:8px;padding:2px 12px;font-size:.9rem;white-space:nowrap}
.btn{border:1px solid var(--line);background:var(--sheet2);border-radius:10px;padding:6px 16px;font-weight:500}
.btn:hover{border-color:var(--accent)}
.btn.pri{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);font-weight:700}
.btn.danger{background:var(--bad);color:var(--sheet2);border-color:var(--bad);font-weight:700}
.btn.sm{padding:2px 10px;font-size:.88rem}
.btn[disabled]{opacity:.45;cursor:default}
.sheet{background:var(--sheet);backdrop-filter:blur(8px);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:24px}
h1,h2,h3{line-height:1.5;margin:0;text-wrap:balance}
.mute{color:var(--mute)}
.sign{margin:28px auto 0;max-width:640px;background:var(--sheet);backdrop-filter:blur(8px);border:1px solid var(--line);border-radius:12px;padding:10px 16px;text-align:center;font-size:.92rem;line-height:1.8;box-shadow:var(--shadow)}
.sign b{color:var(--ink)}
.sign span{display:block}
.sign .en{direction:ltr;unicode-bidi:isolate}
.center{min-height:62vh;display:grid;place-items:center;padding-top:30px}
.center .sheet{max-width:520px;text-align:center}
.center h1{font-size:1.5rem;margin-bottom:10px}
.center p{margin:8px 0}
@media (max-width:820px){.sheet{padding:16px}}