/* =====================================================================
   Site design system — warm nude palette, soft contrast, modern & calm.
   Loaded after app.css, so it also re-themes the learning app.
   ===================================================================== */
@font-face{font-family:"Vazirmatn";src:url("../fonts/Vazirmatn-Regular.woff2") format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Vazirmatn";src:url("../fonts/Vazirmatn-SemiBold.woff2") format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"Vazirmatn";src:url("../fonts/Vazirmatn-Bold.woff2") format("woff2");font-weight:700;font-display:swap}

:root{
  --bg:#F7F2EC; --surface:#FFFCF8; --surface-2:#F1E9E0; --border:#E6DBCF; --border-strong:#D6C7B7;
  --text:#3A302A; --text-2:#5F534A; --muted:#74685E;
  --accent:#8C6450; --accent-2:#F3E8DF; --accent-ink:#74503F;
  --ok:#4F6E4B; --ok-bg:#E9F0E4; --warn:#8A5E1F; --warn-bg:#F8EEDC; --bad:#9C4338; --bad-bg:#F8E6E1;
  --der:#3D6A8F; --das:#477343; --die:#A3453A;
  --sand:#E8D9C5; --blush:#EFD9CF; --sage:#DCE3D3; --clay:#D9B9A3; --mist:#E4E1DA; --linen:#F4ECE2;
  --radius:16px; --radius-sm:10px;
  --shadow:0 1px 2px rgba(58,48,42,.04),0 6px 24px -12px rgba(58,48,42,.12);
  --shadow-lg:0 2px 4px rgba(58,48,42,.04),0 24px 48px -24px rgba(58,48,42,.22);
  --fa:"Vazirmatn",Tahoma,"Segoe UI",system-ui,sans-serif;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#1F1B18; --surface:#28231F; --surface-2:#312B26; --border:#3B342E; --border-strong:#4A413A;
    --text:#EEE5DB; --text-2:#D3C7BA; --muted:#B3A598;
    --accent:#D9AE93; --accent-2:#3A3029; --accent-ink:#E8C3AB;
    --ok:#A9C79F; --ok-bg:#26301F; --warn:#E3B877; --warn-bg:#3A2E1A; --bad:#E7A093; --bad-bg:#3D2420;
    --der:#9DC0E0; --das:#A6CC9C; --die:#EBA095;
    --sand:#3A3128; --blush:#3D2F2A; --sage:#2D3329; --clay:#4A3A30; --mist:#2E2B27; --linen:#2A2420;
    --shadow:none; --shadow-lg:none;
  }
}
:root[data-theme="dark"]{
  --bg:#1F1B18; --surface:#28231F; --surface-2:#312B26; --border:#3B342E; --border-strong:#4A413A;
  --text:#EEE5DB; --text-2:#D3C7BA; --muted:#B3A598;
  --accent:#D9AE93; --accent-2:#3A3029; --accent-ink:#E8C3AB;
  --ok:#A9C79F; --ok-bg:#26301F; --warn:#E3B877; --warn-bg:#3A2E1A; --bad:#E7A093; --bad-bg:#3D2420;
  --der:#9DC0E0; --das:#A6CC9C; --die:#EBA095;
  --sand:#3A3128; --blush:#3D2F2A; --sage:#2D3329; --clay:#4A3A30; --mist:#2E2B27; --linen:#2A2420;
  --shadow:none; --shadow-lg:none;
}
:root[data-theme="dark"] .btn.primary,:root[data-theme="dark"] .btn-p{color:#1F1B18}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .btn.primary,:root:not([data-theme="light"]) .btn-p{color:#1F1B18}}

html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--fa)}
input,select,textarea,button{font-family:inherit;font-size:inherit;color:inherit}
a{color:var(--accent-ink)}
img{max-width:100%;height:auto}
::selection{background:var(--blush)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* learning-app tweaks on the new palette */
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.card{border-radius:var(--radius)}
.sidebar{background:var(--surface)}
.nav a.active{background:var(--accent-2);color:var(--accent-ink)}
.brand-logo{background:var(--accent)!important;color:#fff}

/* ---------- layout ---------- */
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 20px}
.narrow{max-width:780px}
.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:saturate(1.4) blur(12px);-webkit-backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid color-mix(in srgb,var(--border) 70%,transparent)}
.site-header .container{display:flex;align-items:center;gap:18px;height:68px}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);font-weight:700}
.logo-mark{width:38px;height:38px;border-radius:12px;background:var(--accent);color:#fff;display:grid;place-items:center;font-family:Inter,system-ui,sans-serif;font-weight:800;letter-spacing:-.02em;font-size:15px}
.logo small{display:block;font-weight:400;color:var(--muted);font-size:12px}
.mainnav{display:flex;gap:4px;margin-inline-start:auto}
.mainnav a{padding:8px 12px;border-radius:999px;text-decoration:none;color:var(--text-2);font-size:14.5px}
.mainnav a:hover,.mainnav a.on{background:var(--surface-2);color:var(--text)}
.head-actions{display:flex;gap:8px;align-items:center}
.nav-toggle{display:none;background:none;border:1px solid var(--border-strong);border-radius:10px;padding:7px 10px;cursor:pointer}
@media (max-width:900px){
  .mainnav{display:none;position:absolute;top:68px;inset-inline:0;flex-direction:column;background:var(--surface);border-bottom:1px solid var(--border);padding:10px 16px;box-shadow:var(--shadow-lg)}
  .mainnav.open{display:flex}
  .nav-toggle{display:inline-block;margin-inline-start:auto}
  .head-actions .hide-sm{display:none}
}

/* ---------- buttons ---------- */
.btn-p,.btn-s,.btn-g{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:11px 22px;font-weight:600;font-size:15px;text-decoration:none;cursor:pointer;border:1px solid transparent;transition:transform .15s,box-shadow .15s,background .15s}
.btn-p{background:var(--accent);color:#fff;box-shadow:0 8px 20px -10px color-mix(in srgb,var(--accent) 70%,transparent)}
.btn-p:hover{transform:translateY(-1px);filter:brightness(1.04)}
.btn-s{background:var(--surface);color:var(--text);border-color:var(--border-strong)}
.btn-s:hover{background:var(--surface-2)}
.btn-g{background:transparent;color:var(--text-2);padding:8px 14px}
.btn-g:hover{background:var(--surface-2)}
.btn-sm{padding:7px 14px;font-size:13.5px}

/* ---------- sections ---------- */
.section{padding:84px 0}
.section.tight{padding:56px 0}
.section.alt{background:var(--linen)}
.section-head{max-width:640px;margin:0 auto 40px;text-align:center}
.section-head .eyebrow,.eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--accent-ink);background:var(--accent-2);padding:4px 12px;border-radius:999px;margin-bottom:12px}
.section-head h2{font-size:clamp(24px,3.2vw,34px);line-height:1.35;margin:0 0 10px}
.section-head p{color:var(--text-2);margin:0;font-size:16px}
.g-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.g-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.g-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
@media (max-width:900px){.g-3,.g-4{grid-template-columns:repeat(2,minmax(0,1fr))}.g-2{grid-template-columns:1fr}}
@media (max-width:600px){.g-3,.g-4{grid-template-columns:1fr}.section{padding:60px 0}}

/* ---------- hero ---------- */
.hero-x{position:relative;overflow:hidden;padding:72px 0 88px}
.hero-x .container{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero-x h1{font-size:clamp(30px,4.6vw,50px);line-height:1.3;margin:10px 0 16px;letter-spacing:-.01em}
.hero-x h1 em{font-style:normal;color:var(--accent-ink);background:linear-gradient(transparent 62%,var(--blush) 62%)}
.hero-x p.lead{font-size:17.5px;color:var(--text-2);max-width:560px;margin:0 0 28px;line-height:1.95}
.hero-x .ctas{display:flex;gap:12px;flex-wrap:wrap}
.hero-meta{display:flex;gap:22px;margin-top:30px;color:var(--muted);font-size:14px;flex-wrap:wrap}
.hero-meta b{display:block;color:var(--text);font-size:20px}
.blob{position:absolute;border-radius:50%;filter:blur(2px);opacity:.75;z-index:-1}
.blob.b1{width:520px;height:520px;background:radial-gradient(circle at 30% 30%,var(--blush),transparent 70%);top:-160px;inset-inline-start:-140px}
.blob.b2{width:420px;height:420px;background:radial-gradient(circle at 60% 40%,var(--sage),transparent 70%);bottom:-180px;inset-inline-end:-120px}
.hero-art{position:relative;aspect-ratio:1/1;max-width:440px;margin-inline-start:auto;width:100%}
.hero-card{position:absolute;background:var(--surface);border:1px solid var(--border);border-radius:20px;box-shadow:var(--shadow-lg);padding:16px 18px}
.hero-card.c1{inset-inline-start:0;top:6%;width:72%}
.hero-card.c2{inset-inline-end:0;top:44%;width:62%}
.hero-card.c3{inset-inline-start:10%;bottom:2%;width:56%}
.word{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:8px 0;border-bottom:1px dashed var(--border)}
.word:last-child{border:0}
.word .de{font-family:Inter,system-ui,sans-serif;font-weight:600;direction:ltr}
.art-der{color:var(--der)}.art-das{color:var(--das)}.art-die{color:var(--die)}
.meter{height:8px;background:var(--surface-2);border-radius:99px;overflow:hidden}
.meter i{display:block;height:100%;background:linear-gradient(90deg,var(--clay),var(--accent));border-radius:99px}
@media (max-width:900px){.hero-x .container{grid-template-columns:1fr}.hero-art{max-width:380px;margin:20px auto 0}}

/* ---------- cards ---------- */
.f-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}
.f-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.f-card h3{margin:14px 0 6px;font-size:17px}
.f-card p{margin:0;color:var(--text-2);font-size:14.5px;line-height:1.9}
.ico{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:var(--accent-2);color:var(--accent-ink)}
.ico svg{width:22px;height:22px}
.ico.t2{background:var(--sage);color:var(--ok)}.ico.t3{background:var(--blush);color:var(--bad)}.ico.t4{background:var(--sand);color:var(--warn)}.ico.t5{background:var(--mist);color:var(--text-2)}
.course-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);border-radius:20px;overflow:hidden;text-decoration:none;color:inherit;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}
.course-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.course-cover{aspect-ratio:16/9;background:linear-gradient(135deg,var(--sand),var(--blush));display:grid;place-items:center;position:relative;overflow:hidden}
.course-cover img{width:100%;height:100%;object-fit:cover}
.course-cover .lvl{font-family:Inter,system-ui,sans-serif;font-size:44px;font-weight:800;color:color-mix(in srgb,var(--accent-ink) 75%,transparent);letter-spacing:-.03em}
.course-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:6px;flex:1}
.course-body h3{margin:0;font-size:18px}
.course-body p{margin:0;color:var(--text-2);font-size:14px}
.course-foot{margin-top:auto;padding-top:12px;display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:13px}
.pill{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:999px;font-size:12.5px;background:var(--surface-2);color:var(--text-2)}
.pill.ok{background:var(--ok-bg);color:var(--ok)}.pill.warn{background:var(--warn-bg);color:var(--warn)}.pill.acc{background:var(--accent-2);color:var(--accent-ink)}
.soon{opacity:.75}
.steps-x{counter-reset:s;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.step-x{position:relative;padding:26px 22px 22px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius)}
.step-x::before{counter-increment:s;content:counter(s,persian);position:absolute;top:-16px;inset-inline-start:22px;width:34px;height:34px;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;font-weight:700}
.step-x h3{margin:6px 0;font-size:16.5px}.step-x p{margin:0;color:var(--text-2);font-size:14.5px}
@media (max-width:700px){.steps-x{grid-template-columns:1fr;gap:28px}}

.team{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.team-card{background:var(--surface);border:1px solid var(--border);border-radius:22px;padding:28px;display:flex;gap:20px;align-items:flex-start;box-shadow:var(--shadow)}
.avatar{flex:none;width:96px;height:96px;border-radius:28px;overflow:hidden;background:linear-gradient(135deg,var(--sand),var(--clay));display:grid;place-items:center;font-size:30px;font-weight:700;color:var(--accent-ink)}
.avatar img{width:100%;height:100%;object-fit:cover}
.team-card h3{margin:0;font-size:19px}
.team-card .role{color:var(--accent-ink);font-size:14px;margin:2px 0 10px}
.team-card .bio{color:var(--text-2);font-size:14.5px;line-height:1.95}
.team-card .bio p{margin:0 0 8px}
.social{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;text-decoration:none;padding:6px 12px;border-radius:999px;background:var(--surface-2);color:var(--text-2)}
.social:hover{background:var(--accent-2);color:var(--accent-ink)}
@media (max-width:520px){.team-card{flex-direction:column;align-items:center;text-align:center}}

.plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;align-items:stretch}
.plan{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:22px;padding:28px 24px;display:flex;flex-direction:column;box-shadow:var(--shadow)}
.plan.hl{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-2),var(--shadow-lg)}
.plan .badge{position:absolute;top:-13px;inset-inline-start:24px;background:var(--accent);color:#fff;font-size:12.5px;padding:3px 12px;border-radius:999px}
.plan h3{margin:0 0 4px;font-size:18px}
.plan .dur{color:var(--muted);font-size:14px}
.price{margin:18px 0 6px;font-size:30px;font-weight:700}
.price small{font-size:14px;font-weight:400;color:var(--muted)}
.price s{display:block;font-size:14px;color:var(--muted);font-weight:400}
.plan ul{list-style:none;padding:0;margin:14px 0 22px;display:grid;gap:8px;font-size:14.5px;color:var(--text-2)}
.plan li::before{content:"✓";color:var(--ok);font-weight:700;margin-inline-end:8px}
.plan .btn-p,.plan .btn-s{margin-top:auto}

.post-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);border-radius:20px;overflow:hidden;text-decoration:none;color:inherit;box-shadow:var(--shadow);transition:transform .2s,box-shadow .2s}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.post-cover{aspect-ratio:16/9;background:linear-gradient(135deg,var(--linen),var(--sage));overflow:hidden;display:grid;place-items:center;color:var(--accent-ink);font-size:34px}
.post-cover img{width:100%;height:100%;object-fit:cover}
.post-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
.post-body h3{margin:0;font-size:17px;line-height:1.6}
.post-body p{margin:0;color:var(--text-2);font-size:14px}
.post-meta{color:var(--muted);font-size:13px;display:flex;gap:10px;flex-wrap:wrap}

.faq{max-width:780px;margin:0 auto;display:grid;gap:12px}
.faq details{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:4px 18px}
.faq summary{cursor:pointer;padding:14px 0;font-weight:600;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;color:var(--accent);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{margin:0 0 14px;color:var(--text-2)}

.cta-band{background:linear-gradient(135deg,var(--accent),color-mix(in srgb,var(--accent) 70%,#3A302A));color:#fff;border-radius:28px;padding:48px;display:flex;gap:24px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.cta-band h2{margin:0 0 6px;font-size:26px}.cta-band p{margin:0;opacity:.9}
.cta-band .btn-s{background:#FFFCF8;color:#3A302A;border:0}
@media (max-width:600px){.cta-band{padding:30px 22px}}

.page-hero{padding:56px 0 30px;text-align:center}
.page-hero h1{font-size:clamp(26px,4vw,40px);margin:8px 0 10px}
.page-hero p{color:var(--text-2);max-width:640px;margin:0 auto}
.crumbs{font-size:13px;color:var(--muted)}.crumbs a{color:var(--muted);text-decoration:none}

.prose{font-size:16.5px;line-height:2.05;color:var(--text)}
.prose h2{font-size:23px;margin:34px 0 10px}.prose h3{font-size:19px;margin:26px 0 8px}
.prose p{margin:0 0 16px}.prose ul,.prose ol{padding-inline-start:22px;margin:0 0 16px}
.prose li{margin:4px 0}
.prose em,.prose i{font-style:normal;font-family:Inter,system-ui,sans-serif;direction:ltr;unicode-bidi:isolate;color:var(--accent-ink)}
.prose strong{color:var(--text)}
.prose blockquote{margin:16px 0;padding:12px 18px;border-inline-start:4px solid var(--clay);background:var(--linen);border-radius:10px}
.prose table{border-collapse:collapse;width:100%;margin:12px 0 18px;font-size:15px}
.prose th,.prose td{border:1px solid var(--border);padding:8px 10px;text-align:start}
.prose th{background:var(--surface-2)}
.prose img{border-radius:14px}
.prose code{background:var(--surface-2);padding:1px 6px;border-radius:6px;font-size:.9em}
.prose a{color:var(--accent-ink)}

.site-footer{margin-top:40px;background:var(--surface);border-top:1px solid var(--border);padding:48px 0 24px;color:var(--text-2);font-size:14.5px}
.site-footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
.site-footer h4{margin:0 0 12px;color:var(--text);font-size:15px}
.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.site-footer a{color:var(--text-2);text-decoration:none}.site-footer a:hover{color:var(--accent-ink)}
.site-footer .bottom{margin-top:30px;padding-top:18px;border-top:1px solid var(--border);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:13px}
@media (max-width:800px){.site-footer .cols{grid-template-columns:1fr 1fr}}

/* ---------- forms ---------- */
.field{display:block;margin:0 0 14px}
.field>span{display:block;font-size:13.5px;color:var(--text-2);margin-bottom:5px;font-weight:600}
.input,.inp,.field input:not([type=checkbox]):not([type=radio]):not([type=file]),.field select,.field textarea{width:100%;border:1px solid var(--border-strong);border-radius:12px;padding:10px 13px;background:var(--surface);color:var(--text);transition:border .15s,box-shadow .15s}
.field textarea{min-height:110px;line-height:1.9;resize:vertical}
.input:focus,.inp:focus,.field input:focus,.field select:focus,.field textarea:focus{outline:0;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-2)}
.field small{display:block;color:var(--muted);font-size:12.5px;margin-top:4px}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 16px}
.form-grid .full{grid-column:1/-1}
@media (max-width:640px){.form-grid{grid-template-columns:1fr}}
.check{display:inline-flex;gap:8px;align-items:center;cursor:pointer}
.ltr{direction:ltr;text-align:left}

/* ---------- auth ---------- */
.auth-wrap{min-height:calc(100vh - 68px);display:grid;place-items:center;padding:40px 16px;position:relative;overflow:hidden}
.auth-card{width:100%;max-width:440px;position:relative}
.auth-card .panel{background:var(--surface);border:1px solid var(--border);border-radius:24px;padding:32px 28px;box-shadow:var(--shadow-lg)}
.auth-card h1{font-size:23px;margin:0 0 4px}
.auth-card .sub{color:var(--muted);font-size:14px;margin:0 0 20px}
.auth-card .btn-p{width:100%;margin-top:6px}
.auth-alt{text-align:center;margin-top:18px;font-size:14px;color:var(--text-2)}
.err{color:var(--bad);font-size:13px;margin-top:4px}
.alert{padding:11px 14px;border-radius:12px;margin:0 0 14px;font-size:14px}
.alert.ok{background:var(--ok-bg);color:var(--ok);border:1px solid color-mix(in srgb,var(--ok) 35%,transparent)}
.alert.bad{background:var(--bad-bg);color:var(--bad);border:1px solid color-mix(in srgb,var(--bad) 35%,transparent)}
.alert.info{background:var(--accent-2);color:var(--accent-ink);border:1px solid color-mix(in srgb,var(--accent) 30%,transparent)}

/* ---------- learning dashboard ---------- */
.learn-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;margin:36px 0 22px}
.learn-head h1{margin:0;font-size:28px}

/* ---------- admin ---------- */
.admin-top{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:40}
.admin-top .container{max-width:1280px;display:flex;align-items:center;gap:14px;height:62px}
.admin-top nav{display:flex;gap:2px;margin-inline-start:auto;flex-wrap:wrap}
.admin-top nav a{padding:7px 11px;border-radius:10px;text-decoration:none;color:var(--text-2);font-size:14px}
.admin-top nav a:hover,.admin-top nav a.on{background:var(--surface-2);color:var(--text)}
@media (max-width:980px){.admin-top nav{display:none}.admin-top nav.open{display:flex;position:absolute;top:62px;inset-inline:0;background:var(--surface);flex-direction:column;padding:10px;border-bottom:1px solid var(--border)}.admin-top .nav-toggle{display:inline-block}}
.admin-main{max-width:1280px;margin:0 auto;padding:26px 20px 60px}
.a-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px;flex-wrap:wrap;background:var(--surface);border:1px solid var(--border);border-radius:20px;padding:22px 24px;margin-bottom:20px;box-shadow:var(--shadow)}
.a-head h1{margin:4px 0 2px;font-size:24px}
.a-head p{margin:0;color:var(--muted);font-size:14px}
.a-group{background:var(--surface);border:1px solid var(--border);border-radius:22px;margin-bottom:22px;box-shadow:var(--shadow);overflow:hidden}
.a-group>header{padding:18px 22px;background:linear-gradient(90deg,var(--linen),transparent)}
.a-group>header h2{margin:0;font-size:17px}.a-group>header p{margin:2px 0 0;color:var(--muted);font-size:13.5px}
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;padding:18px 22px 22px}
.tile{display:flex;flex-direction:column;gap:6px;padding:16px 16px 14px;border-radius:16px;border:1px solid var(--border);background:var(--surface);text-decoration:none;color:inherit;transition:transform .15s,box-shadow .15s,border-color .15s;position:relative}
.tile:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:var(--border-strong)}
.tile .ico{width:38px;height:38px;border-radius:11px}
.tile .ico svg{width:19px;height:19px}
.tile b{font-size:15px;margin-top:6px}
.tile span{color:var(--muted);font-size:13px;line-height:1.8}
.tile em{font-style:normal;margin-top:auto;padding-top:6px;color:var(--accent-ink);font-size:13px;font-weight:600}
.tile .count{position:absolute;top:14px;inset-inline-end:14px;background:var(--accent-2);color:var(--accent-ink);font-size:12px;padding:1px 9px;border-radius:99px;font-weight:600}
.tile.c2{border-color:color-mix(in srgb,var(--ok) 25%,var(--border))}.tile.c3{border-color:color-mix(in srgb,var(--bad) 22%,var(--border))}.tile.c4{border-color:color-mix(in srgb,var(--warn) 25%,var(--border))}
.box{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:20px 22px;margin-bottom:18px;box-shadow:var(--shadow)}
.box>h3{margin:0 0 12px;font-size:16px}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-bottom:20px}
.stat-x{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:16px 18px}
.stat-x b{display:block;font-size:24px}
.stat-x span{color:var(--muted);font-size:13px}
.todo{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.todo li{display:flex;gap:10px;align-items:center;padding:10px 12px;border-radius:12px;background:var(--warn-bg);color:var(--warn);font-size:14px}
.todo li.done{background:var(--ok-bg);color:var(--ok)}
.todo a{margin-inline-start:auto;font-weight:600}
table.t{border-collapse:collapse;width:100%;font-size:14px}
table.t th,table.t td{border-bottom:1px solid var(--border);padding:10px 10px;text-align:start;vertical-align:middle}
table.t th{color:var(--muted);font-weight:600;font-size:13px;background:transparent;border-top:0}
table.t tr:hover td{background:color-mix(in srgb,var(--surface-2) 50%,transparent)}
.tbl-wrap{overflow-x:auto}
.actions{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.btn-x{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border-strong);background:var(--surface);border-radius:10px;padding:6px 12px;font-size:13.5px;cursor:pointer;text-decoration:none;color:var(--text)}
.btn-x:hover{background:var(--surface-2)}
.btn-x.p{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-x.d{color:var(--bad)}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:14px}
.toolbar .input{width:auto;min-width:200px}
.dropzone{border:2px dashed var(--border-strong);border-radius:18px;padding:30px;text-align:center;background:var(--linen);cursor:pointer;transition:background .15s,border-color .15s}
.dropzone.over{border-color:var(--accent);background:var(--accent-2)}
.uplist{display:grid;gap:8px;margin-top:14px}
.upitem{display:grid;grid-template-columns:1fr 140px;gap:10px;align-items:center;font-size:13.5px}
.upitem .meter{height:6px}
.json-area{font-family:ui-monospace,Consolas,monospace;direction:ltr;text-align:left;font-size:13px;min-height:420px!important;line-height:1.6!important}
.tabs-x{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:16px}
.tabs-x a{padding:7px 14px;border-radius:999px;text-decoration:none;color:var(--text-2);background:var(--surface);border:1px solid var(--border);font-size:14px}
.tabs-x a.on{background:var(--accent);border-color:var(--accent);color:#fff}

/* legacy helpers (used by earlier views and the learning app) */
.sub-badge{display:inline-block;padding:2px 9px;border-radius:20px;font-size:12px;font-weight:600}
.sub-badge.on{background:var(--ok-bg);color:var(--ok)}
.sub-badge.off{background:var(--surface-2);color:var(--muted)}
.sub-badge.warn{background:var(--warn-bg);color:var(--warn)}
.inline{display:inline-flex;gap:4px;align-items:center;flex-wrap:wrap;margin:0}
.inline select,.inline input{border:1px solid var(--border-strong);border-radius:8px;padding:4px 7px;background:var(--surface);font-size:13px}
.inline input{width:100px}
.code{font-family:ui-monospace,Consolas,monospace;direction:ltr;letter-spacing:.05em;font-weight:600}
details.act summary{cursor:pointer;color:var(--accent-ink);font-size:13px}
details.act[open]{background:var(--surface-2);padding:8px;border-radius:10px}
details.act form{margin:4px 0}
.lock-card{text-align:center;padding:30px 20px}
.lock-card .big{font-size:40px}
.vgrid-print{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.vticket{border:1px dashed #888;border-radius:10px;padding:12px;text-align:center;break-inside:avoid}
.center{text-align:center}
.muted{color:var(--muted)}
.small{font-size:13px}
.pagination-x{display:flex;gap:8px;justify-content:center;margin-top:16px}
nav[role=navigation] svg{width:18px}
@media print{.no-print,.site-header,.site-footer,.admin-top{display:none!important}body{background:#fff}}
.post-cover svg{width:56px;height:56px;opacity:.55}
.course-cover svg{width:56px;height:56px}
.dropzone{display:block}
.dropzone svg{width:36px;height:36px;color:var(--accent)}
.btn-x svg,.social svg,.btn-p svg,.btn-s svg,.actions svg{width:16px;height:16px;flex:none}
@media (max-width:600px){.hero-card.c3{display:none}.hero-art{aspect-ratio:1/.75}}
/* blog extras */
.blog-search{display:flex;gap:8px;max-width:460px;margin:16px auto 0}.blog-search input{flex:1;min-width:0;border:1px solid var(--border-strong,#cbd5e1);border-radius:12px;padding:10px 12px;font:inherit;background:var(--surface);color:var(--text)}
.post-tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}.post-tags span,.post-tags a{font-size:12.5px;color:var(--accent-ink,#0f766e);background:var(--accent-2,#e0f2f1);border-radius:999px;padding:2px 10px;text-decoration:none}
.post-tags.big{margin:16px 0}.post-tags.big a{font-size:14px;padding:4px 12px}
.tag-cloud{display:flex;gap:8px;flex-wrap:wrap}.tag-cloud a{border:1px solid var(--border);border-radius:999px;padding:5px 12px;text-decoration:none;color:var(--text-2)}.tag-cloud a.on,.tag-cloud a:hover{background:var(--accent-2);color:var(--accent-ink)}.tag-cloud small{color:var(--muted)}
.toc{margin-bottom:18px}.toc summary{cursor:pointer;font-weight:800}.toc ol{margin:10px 0 0;padding-inline-start:22px;line-height:2}.toc li.sub{margin-inline-start:18px;list-style:circle}.toc a{text-decoration:none}
.prose h2[id],.prose h3[id]{scroll-margin-top:80px}
.post-actions{display:flex;flex-direction:column;gap:12px;margin-top:16px}
.reacts,.share{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.react{border:1px solid var(--border);background:var(--surface);border-radius:999px;padding:5px 12px;font:inherit;cursor:pointer;font-size:17px}.react b{font-size:13px;margin-inline-start:4px}.react.on{border-color:var(--accent);background:var(--accent-2)}
.share a,.share button{border:1px solid var(--border);border-radius:999px;padding:4px 12px;text-decoration:none;color:var(--text-2);background:var(--surface);font:inherit;font-size:13.5px;cursor:pointer}
.cform{margin:10px 0 16px}.cform textarea{width:100%;border:1px solid var(--border-strong,#cbd5e1);border-radius:14px;padding:10px 12px;font:inherit;background:var(--surface);color:var(--text);resize:vertical}
.cform-bar{display:flex;gap:8px;align-items:center;position:relative;margin-top:6px;flex-wrap:wrap}
.emoji-btn{border:1px solid var(--border);background:var(--surface);border-radius:10px;font-size:20px;padding:2px 8px;cursor:pointer}
.emoji-pane{position:absolute;bottom:42px;right:0;z-index:5;background:var(--surface);border:1px solid var(--border);border-radius:14px;box-shadow:var(--shadow-lg);padding:8px;display:grid;grid-template-columns:repeat(8,1fr);gap:2px;width:min(320px,90vw)}
.emoji-pane[hidden]{display:none}.emoji-pane button{border:0;background:none;font-size:20px;cursor:pointer;border-radius:8px;padding:4px}.emoji-pane button:hover{background:var(--surface-2)}
.comments{display:flex;flex-direction:column;gap:14px}
.cmt{display:flex;gap:10px}.cmt .av{width:38px;height:38px;border-radius:50%;background:var(--accent-2);color:var(--accent-ink);display:grid;place-items:center;font-weight:800;flex:none}.cmt .av.staff{background:var(--accent);color:#fff}
.cbody{line-height:1.95;margin-top:4px;white-space:normal;overflow-wrap:anywhere}
.cacts{display:flex;gap:10px;margin-top:4px}.cacts button{border:0;background:none;color:var(--muted);font:inherit;font-size:13px;cursor:pointer;padding:0}
.reply{margin-inline-start:48px;border-inline-start:3px solid var(--border);padding-inline-start:10px}
.cmt .pill{display:inline-block!important;width:auto!important;margin:0 4px;padding:1px 8px;font-size:11.5px}

/* ---------- notification centre ---------- */
.nt-bell{position:relative;flex:none}
.nt-btn{position:relative;display:inline-grid;place-items:center;width:40px;height:40px;border-radius:999px;border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;padding:0}
.nt-btn svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.nt-btn:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.nt-badge{position:absolute;top:-4px;inset-inline-end:-4px;min-width:19px;height:19px;padding:0 5px;border-radius:999px;background:#E5484D;color:#fff;font-size:11px;font-weight:800;line-height:19px;text-align:center;box-shadow:0 0 0 2px var(--surface)}
.nt-badge[hidden]{display:none}
.nt-panel{position:absolute;top:calc(100% + 8px);inset-inline-end:0;width:min(380px,calc(100vw - 24px));background:var(--surface);border:1px solid var(--border);border-radius:16px;box-shadow:0 14px 40px rgba(0,0,0,.16);z-index:60;overflow:hidden}
.nt-panel[hidden]{display:none}
.nt-ph{display:flex;justify-content:space-between;align-items:center;padding:12px 14px;border-bottom:1px solid var(--border)}
.nt-all{border:0;background:none;color:var(--accent-ink);font:inherit;font-size:13px;font-weight:700;cursor:pointer}
.nt-all[hidden]{display:none}
.nt-body-list{max-height:min(420px,60vh);overflow-y:auto}
.nt-loading{padding:26px 14px;text-align:center;color:var(--muted)}
.nt-more{display:block;text-align:center;padding:11px;border-top:1px solid var(--border);font-weight:700;font-size:14px;text-decoration:none;color:var(--accent-ink)}
.nt-list{list-style:none;margin:0;padding:0}
.nt-list li+li{border-top:1px solid var(--border)}
.nt-item{display:flex;gap:12px;align-items:flex-start;padding:13px 14px;text-decoration:none;color:var(--text)}
.nt-item:hover{background:var(--surface-2)}
.nt-list li.new .nt-item{background:color-mix(in srgb,var(--accent) 7%,transparent)}
.nt-ic{flex:none;width:38px;height:38px;border-radius:12px;background:var(--surface-2);display:grid;place-items:center;font-size:19px}
.nt-tx{flex:1;min-width:0;display:flex;flex-direction:column;gap:3px;line-height:1.7}
.nt-tx b{font-size:15px}
.nt-body{color:var(--text-2);font-size:14px;overflow-wrap:anywhere}
.nt-list.sm .nt-body{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.nt-tx small{color:var(--muted);font-size:12px}
.nt-dot{flex:none;width:9px;height:9px;border-radius:50%;background:#E5484D;margin-top:8px}
.nt-page h1{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:0;font-size:24px}
.nt-head{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.nt-count{font-size:13px;font-weight:700;background:#FDECEC;color:#B4232A;border-radius:999px;padding:3px 10px}
.nt-tabs{display:flex;gap:6px;overflow-x:auto;margin-bottom:12px;padding-bottom:4px}
.nt-tabs a{white-space:nowrap;border:1px solid var(--border);border-radius:999px;padding:6px 12px;font-size:13px;font-weight:700;text-decoration:none;color:var(--text-2);background:var(--surface)}
.nt-tabs a.on{background:var(--accent);border-color:var(--accent);color:#fff}
.nt-page .nt-list{background:var(--surface);border:1px solid var(--border);border-radius:16px;overflow:hidden}
.nt-empty{text-align:center;padding:36px 16px;background:var(--surface);border:1px dashed var(--border-strong,var(--border));border-radius:16px;color:var(--text-2);line-height:1.9}
.nt-pager{display:flex;justify-content:space-between;gap:8px;margin-top:12px}
.nt-prefs{margin-top:18px;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:12px 14px}
.nt-prefs summary{cursor:pointer;font-weight:700}
.nt-prefs form{margin-top:10px}
.nt-sw{display:flex;align-items:center;gap:10px;padding:8px 0;cursor:pointer}
.nt-sw input{width:18px;height:18px;accent-color:var(--accent)}
.nt-sw small{color:var(--muted)}
@media (max-width:560px){.nt-panel{position:fixed;top:64px;inset-inline:12px;width:auto}}
:root[data-theme="dark"] .nt-count{background:#4a1d20;color:#ffb4b8}

/* ---------- exam-bank search ---------- */
.xs-head h1{margin:0 0 4px;font-size:24px}.xs-head p{margin:0 0 14px;color:var(--text-2);line-height:1.9}
.xs-form{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:14px;margin-bottom:12px}
.xs-q{display:flex;gap:8px}
.xs-q input,.xs-dash input{flex:1;min-width:0;border:1px solid var(--border-strong);border-radius:12px;padding:11px 14px;font:inherit;font-size:16px;background:var(--surface);color:var(--text)}
.xs-q input:focus-visible,.xs-dash input:focus-visible{outline:3px solid color-mix(in srgb,var(--track) 35%,transparent);border-color:var(--track)}
.xs-q button,.xs-dash button{display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.xs-q button svg,.xs-dash button svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}
.xs-filters{display:flex;flex-wrap:wrap;gap:8px 10px;margin-top:10px;align-items:flex-end}
.xs-filters label{display:flex;flex-direction:column;gap:3px;font-size:12px;color:var(--muted);font-weight:700}
.xs-filters select{border:1px solid var(--border);border-radius:10px;padding:7px 8px;font:inherit;font-size:14px;background:var(--surface-2);color:var(--text);min-width:110px}
.xs-filters .xs-chk{flex-direction:row;align-items:center;gap:6px;font-size:14px;color:var(--text-2);padding-bottom:8px}
.xs-sum{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:6px 2px 8px}
.xs-chips{display:flex;gap:6px;overflow-x:auto;padding-bottom:4px;margin-bottom:10px}
.xs-chips a{white-space:nowrap;border:1px solid var(--border);border-radius:999px;padding:5px 12px;font-size:13px;font-weight:700;text-decoration:none;color:var(--text-2);background:var(--surface)}
.xs-chips a.on{background:var(--track);border-color:var(--track);color:#fff}
.xs-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.xs-card{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:14px 16px}
.xs-card.locked{background:color-mix(in srgb,var(--surface-2) 45%,var(--surface))}
.xs-top{display:flex;flex-wrap:wrap;gap:6px 10px;align-items:center;font-size:13px}
.xs-lv{font-weight:800;color:var(--c)}
.xs-sk{display:inline-flex;align-items:center;gap:5px;color:var(--text-2);font-weight:700}
.xs-sk svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8}
.xs-st{border-radius:999px;padding:2px 9px;font-size:12px;font-weight:700;background:var(--surface-2)}
.xs-st.ok{background:var(--ok-bg);color:var(--ok)}.xs-st.bad{background:var(--warn-bg);color:var(--warn)}.xs-st.lock{color:var(--muted)}
.xs-card h3{margin:8px 0 4px;font-size:17px}.xs-card h3 a{color:var(--text);text-decoration:none}.xs-card h3 a:hover{color:var(--track)}
.xs-ins{margin:0 0 6px;color:var(--text-2);font-size:14px;line-height:1.9}
.xs-snip{margin:6px 0;background:var(--surface-2);border-radius:10px;padding:8px 10px;font-size:14px;line-height:1.9;overflow-wrap:anywhere}
.xs-snip small,.xs-items small{color:var(--muted);font-weight:700}
.xs-items{margin:6px 0;padding:0;list-style:none;font-size:14px;line-height:1.9}
.xs-items li{padding:3px 0;border-bottom:1px dashed var(--border);overflow-wrap:anywhere}
.xs-card mark{background:#FFE58F;color:inherit;border-radius:3px;padding:0 1px}
:root[data-theme="dark"] .xs-card mark{background:#7a5c00}
.xs-foot{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap;margin-top:10px}
.xs-tags{display:flex;flex-wrap:wrap;gap:5px}.xs-tags span{font-size:12px;border:1px solid var(--border);border-radius:999px;padding:2px 8px;color:var(--text-2)}
.xs-acts{display:flex;gap:6px}
.xs-pager{display:flex;justify-content:center;align-items:center;gap:12px;margin-top:14px}
.xs-empty{text-align:center;background:var(--surface);border:1px dashed var(--border-strong);border-radius:18px;padding:24px 16px;line-height:1.9;color:var(--text-2)}
.xs-try{display:flex;flex-wrap:wrap;gap:6px;justify-content:center}.xs-try a{border:1px solid var(--border);border-radius:999px;padding:4px 12px;text-decoration:none;font-weight:700;font-size:14px}
.xs-dash{display:flex;gap:8px;margin:0 0 18px}
@media (max-width:560px){.xs-q button span{display:none}.xs-filters label{flex:1 1 44%}.xs-filters select{min-width:0;width:100%}.xs-acts{width:100%}.xs-acts a{flex:1;text-align:center}}