/* الصفحة الرئيسية وصفحات التعريف: تعتمد library.css للشريط العلوي والبطاقات والتذييل. */
:root{--accent-fg:#fff;--err:#a23b2c;--quote:#f1f4ee;--hero-glow:rgba(16,92,67,.08)}

:root[data-theme=dark]{--accent-fg:#0d1511;--err:#e07a68;--quote:#1f2924;--hero-glow:rgba(157,217,187,.07)}

main{flex:1;width:100%}
.hero{padding:28px 0 8px;text-align:center;background:radial-gradient(ellipse 60% 70% at 50% 0,var(--hero-glow),transparent 70%)}
.eyebrow{display:inline-block;margin:0 0 14px;padding:3px 14px;border:1px solid var(--line);border-radius:999px;background:var(--surface);color:var(--muted);font-size:.8rem}
.hero h1{font-size:2.5rem;line-height:1.45;margin:0 auto 12px;max-width:20em;text-wrap:balance}
.hero .lead{margin:0 auto 18px;max-width:40em;color:var(--muted);font-size:1.05rem}

form.composer{display:flex;flex-direction:column;gap:12px;max-width:820px;margin:0 auto;text-align:start;background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:20px;box-shadow:0 14px 44px rgba(15,60,40,.07)}
.composer label{font-size:.85rem;color:var(--muted)}
textarea{width:100%;min-height:120px;resize:vertical;font:inherit;color:var(--fg);background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:16px 18px;font-size:1.08rem;line-height:1.9}
textarea:focus{outline:2px solid var(--accent);outline-offset:1px;border-color:transparent}
.composer .row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.composer .row .spacer{flex:1}
button{font:inherit;cursor:pointer;border-radius:10px;border:1px solid transparent;padding:9px 20px}
button.primary{background:var(--accent);color:var(--accent-fg);font-weight:600;min-width:130px;border-color:transparent}
button.primary:disabled{opacity:.55;cursor:default}
.ghost{background:transparent;color:var(--muted);border:1px solid var(--line)}
.hint{font-size:.8rem;color:var(--muted)}
.status{color:var(--muted);font-size:.9rem}
.chips{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;max-width:820px;margin:16px auto 0}
.chips .label{width:100%;font-size:.8rem;color:var(--muted)}
.chip{background:var(--surface);color:var(--fg);border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:.88rem}
.chip:hover{border-color:var(--accent);color:var(--accent)}
.trust-line{max-width:820px;margin:10px auto 0;display:flex;gap:8px;align-items:flex-start;justify-content:center;color:var(--muted);font-size:.85rem;text-align:start}
.trust-line b{color:var(--fg)}

#out{max-width:820px;margin:24px auto 0;text-align:start}
.spin{width:16px;height:16px;border-radius:50%;border:2px solid var(--line);border-top-color:var(--accent);animation:sp .9s linear infinite;display:inline-block}
@keyframes sp{to{transform:rotate(360deg)}}
@media(prefers-reduced-motion:reduce){.spin{animation:none}}
button.primary .spin{width:14px;height:14px;border-color:color-mix(in srgb,var(--accent-fg) 35%,transparent);border-top-color:var(--accent-fg);vertical-align:-2px;margin-inline-end:8px}
.loading{display:flex;gap:10px;align-items:center;color:var(--muted)}
.msg{border:1px solid var(--line);border-inline-start:4px solid var(--err);background:var(--surface);border-radius:10px;padding:12px 14px}
.msg strong{color:var(--err)}
.msg.info{border-inline-start-color:var(--gold)}
.msg.info strong{color:var(--fg)}
.err{color:var(--err)}
/* المحادثة: الأدوار بالترتيب، والمربع أسفلها ثابت أثناء التمرير */
#thread{display:flex;flex-direction:column}
.turn{display:flex;flex-direction:column;gap:10px;margin-bottom:22px;scroll-margin-top:12px}
.ubub{align-self:flex-start;max-width:88%;background:var(--soft);border:1px solid var(--line);border-radius:16px;padding:8px 16px;white-space:pre-wrap;overflow-wrap:anywhere}
.follow{margin:0;padding:10px 14px;border:1px dashed var(--gold);border-radius:12px;overflow-wrap:anywhere}
.hero.chatting{padding-top:18px}
.hero.chatting .eyebrow,.hero.chatting .lead{display:none}
.hero.chatting h1{font-size:1.3rem;line-height:1.6;margin-bottom:6px;max-width:none}
.hero.chatting form.composer{position:sticky;bottom:10px;z-index:5;padding:12px;gap:8px;box-shadow:0 8px 28px rgba(15,60,40,.16)}
.hero.chatting .composer .hint{display:none}
.hero.chatting .composer label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.hero.chatting textarea{min-height:64px;padding:10px 14px}
.answer{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px 22px;min-width:0;overflow-wrap:anywhere}
.answer h2,.answer h3{font-size:1.15rem;margin:16px 0 4px}
.answer p{margin:6px 0}
.answer ul,.answer ol{margin:6px 0;padding-inline-start:22px}
.answer blockquote{margin:8px 0;padding:8px 12px;background:var(--quote);border-inline-start:3px solid var(--gold);border-radius:6px}
.answer table{border-collapse:collapse;font-size:.92rem}
.answer td,.answer th{border:1px solid var(--line);padding:4px 8px}
.tbl{overflow-x:auto}
.answer details.q{margin:8px 0}
.answer details.q summary{cursor:pointer;font-size:.88rem;color:var(--accent)}
.after{display:flex;flex-direction:column;gap:12px;margin-top:14px}
.actions{display:flex;gap:8px;flex-wrap:wrap}
.copy{background:var(--soft);color:var(--fg);font-size:.85rem;padding:5px 14px}

/* بطاقات المصادر المرفقة بالإجابة */
.basis{font-size:.9rem;color:var(--muted)}
.src-head{display:flex;justify-content:space-between;gap:10px;align-items:baseline;margin:0 0 8px;color:var(--fg);font-weight:600}
.src-head small{font-weight:400;color:var(--muted);font-size:.78rem}
.src-head code{direction:ltr;unicode-bidi:isolate;font-size:.78rem;background:var(--soft);padding:1px 6px;border-radius:6px}
.basis ul{margin:0;padding:0;list-style:none;display:grid;gap:10px;grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.basis li{background:var(--surface);border:1px solid var(--line);border-inline-start:3px solid var(--gold);border-radius:12px;padding:12px 14px;margin:0}
.basis li strong{color:var(--fg);font-weight:600;display:block;line-height:1.6}
.source-links{display:flex;gap:4px 14px;flex-wrap:wrap;margin-block:6px 0}
.source-links a{color:var(--accent);text-underline-offset:3px;font-size:.85rem}
.source-note{margin:10px 0 0;font-size:.8rem}
.admission-note{margin:6px 0 0;font-size:.82rem;color:var(--muted,#555)}
.admission-note.admitted{color:var(--accent);font-weight:600}
.tag{display:inline-block;font-size:.75rem;font-weight:600;border-radius:999px;padding:1px 9px;margin-top:4px}
.tag.new{background:var(--warn);color:var(--warn-fg);border:1px solid var(--gold)}
.version-line{display:block;color:var(--muted);font-size:.8rem;margin-top:2px}

/* الأقسام */
.band{padding:48px 0 0}
.band>h2{font-size:1.6rem;margin:0 0 6px}
.band>.sub{margin:0 0 22px;color:var(--muted)}
.home-services{scroll-margin-top:18px}
.site-under-construction{width:max-content;max-width:100%;margin:16px auto 0;padding:7px 16px;border:1px solid #caa653;border-radius:999px;background:#fff8df;color:#6b5315;font-size:.88rem;font-weight:700;text-align:center}
[data-theme=dark] .site-under-construction{background:#322b18;color:#f1d88c;border-color:#806b32}
.home-services .library-home-extras{margin-bottom:0}
.home-services .quiz-entry{grid-column:1/-1}
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin-top:40px}
.stats .s{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px 18px;text-align:center}
.stats b{display:block;font-family:'Noto Naskh Arabic',serif;font-size:1.9rem;line-height:1.3;color:var(--accent);direction:ltr}
.stats span{font-size:.82rem;color:var(--muted)}
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:0;padding:0;list-style:none;counter-reset:s}
.steps li{counter-increment:s;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px 20px 18px}
.steps li::before{content:counter(s);display:grid;place-items:center;width:34px;height:34px;margin-bottom:10px;border:1.5px solid var(--gold);border-radius:50%;color:var(--gold);font-family:'Noto Naskh Arabic',serif;font-weight:700}
.steps h3{margin:0 0 4px;font-size:1.1rem}
.steps p{margin:0;color:var(--muted);font-size:.92rem}
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.grid4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.tile{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px 18px}
.tile h3{margin:0 0 4px;font-size:1.05rem}
.tile p{margin:0;color:var(--muted);font-size:.88rem}
.trust{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.trust .tile{border-inline-start:3px solid var(--gold)}
.cta-card{display:flex;flex-direction:column;gap:6px;text-decoration:none;color:var(--fg);background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:24px;transition:border-color .15s,transform .15s}
.cta-card:hover{border-color:var(--accent);transform:translateY(-2px)}
.cta-card h3{margin:0;font-size:1.3rem}
.cta-card p{margin:0;color:var(--muted);font-size:.92rem}
.cta-card .go{margin-top:8px;color:var(--accent);font-size:.9rem;font-weight:600}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:0 18px;margin-bottom:10px}
.faq summary{cursor:pointer;padding:14px 0;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::after{content:'+';color:var(--accent);font-size:1.3rem;line-height:1.2}
.faq details[open] summary::after{content:'−'}
.faq summary::-webkit-details-marker{display:none}
.faq details p{margin:0 0 14px;color:var(--muted)}
footer .footer-links{display:flex;justify-content:center;gap:4px 18px;flex-wrap:wrap;margin-bottom:6px}
footer .footer-links a{padding:4px 0;background:transparent;color:var(--accent);font-size:.85rem;border:0;text-decoration:none;border-radius:3px}
footer .footer-links a:hover{text-decoration:underline}

/* صفحات التعريف */
.doc{max-width:760px;margin:0 auto;padding:40px 0 0}
.doc h1{font-size:2.1rem;margin:0 0 8px}
.doc .lead{color:var(--muted);margin:0 0 28px;font-size:1.05rem}
.doc h2{font-size:1.35rem;margin:30px 0 6px}
.doc p,.doc li{color:var(--fg)}
.doc ul{padding-inline-start:22px}
.doc li{margin:4px 0}
.doc .callout{background:var(--warn);color:var(--warn-fg);border-inline-start:4px solid var(--gold);border-radius:10px;padding:12px 16px;margin:18px 0}
.doc code{direction:ltr;unicode-bidi:isolate;background:var(--soft);padding:1px 6px;border-radius:6px;font-size:.85em}

/* الحساب: رابط الشريط العلوي، والحصة، والمحادثات المحفوظة */
.account-link{font-size:.82rem;max-width:180px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:inline-block}
.quota,.temp-note{max-width:820px;margin:10px auto 0;font-size:.85rem;color:var(--muted);text-align:start}
.quota b{color:var(--fg)}
.temp-note{background:var(--warn);color:var(--warn-fg);border-radius:10px;padding:8px 14px}
.quota-cta{margin:10px 0 0}.quota-cta .primary{display:inline-flex;padding:6px 14px;font-size:.88rem;text-decoration:none;border-radius:10px;background:var(--accent);color:var(--accent-fg)}
.save-err{font-size:.85rem;margin:0}
.workspace{display:block}
body.signed-in .workspace{display:grid;grid-template-columns:260px minmax(0,1fr);gap:24px;align-items:start}
.convs{position:sticky;top:12px;margin-top:22px;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:14px;max-height:calc(100svh - 24px);display:flex;flex-direction:column;min-width:0}
.convs-toggle{display:none}
.convs-panel{display:flex;flex-direction:column;gap:10px;min-height:0}
.convs-actions{display:grid;gap:8px}
.convs-actions button{width:100%;min-height:42px;padding:8px 12px}
.convs-actions .ghost[aria-pressed=true]{background:var(--warn);color:var(--warn-fg);border-color:var(--gold)}
.convs-title{font-size:.95rem;margin:6px 0 0;color:var(--muted);font-family:inherit;font-weight:600}
.convs-empty{font-size:.82rem;color:var(--muted);margin:0}
.convs-list{list-style:none;margin:0;padding:0;overflow-y:auto;min-height:0;display:grid;gap:2px;align-content:start}
.convs-list .conv-date{padding:10px 10px 3px;color:var(--muted);font-size:.78rem;font-weight:600}
.convs-list li{display:flex;align-items:center;gap:4px;border-radius:10px;min-width:0}
.convs-list li:hover,.convs-list li:focus-within{background:var(--soft)}
.conv-open{flex:1;min-width:0;padding:9px 10px;color:var(--fg);text-decoration:none;font-size:.88rem;line-height:1.5;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;border-radius:10px}
.conv-open[aria-current]{background:var(--soft);color:var(--accent);font-weight:600;border-inline-start:3px solid var(--accent)}
.conv-tools{display:flex;gap:2px;flex-shrink:0}
.conv-tool{background:transparent;border:1px solid transparent;color:var(--muted);font-size:.75rem;padding:4px 6px;border-radius:8px;min-height:32px}
.conv-tool:hover{border-color:var(--line);color:var(--fg)}
.conv-tool.danger{color:var(--err);border-color:var(--err)}
.conv-rename{display:flex;gap:4px;align-items:center;width:100%;padding:4px}
.conv-rename input{flex:1;min-width:0;padding:6px 8px;font-size:.85rem}
.conv-confirm{display:flex;flex-wrap:wrap;gap:4px 6px;align-items:center;padding:6px 8px;font-size:.82rem;width:100%}
.conv-confirm span{flex-basis:100%;overflow-wrap:anywhere}
body.signed-in .hero{text-align:center}
@media(max-width:900px){
  body.signed-in .workspace{display:block}
  .convs{position:relative;top:auto;margin:12px 0 0;padding:0;border:0;background:transparent;max-height:none;z-index:30}
  .convs-toggle{display:flex;width:100%;align-items:center;justify-content:space-between;gap:10px;min-height:44px;padding:9px 14px;background:var(--surface);color:var(--fg);border:1px solid var(--line);border-radius:12px;font-weight:600;text-align:start}
  .convs-toggle span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
  .convs.open .caret{transform:rotate(180deg)}
  .convs-panel{display:none;position:absolute;inset-inline:0;top:calc(100% + 6px);background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:12px;box-shadow:0 14px 40px rgba(15,60,40,.18);max-height:70svh}
  .convs.open .convs-panel{display:flex}
  .convs-actions{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){.account-link{padding:7px 10px;font-size:.73rem;max-width:120px}}


@media(max-width:860px){.grid4{grid-template-columns:repeat(2,minmax(0,1fr))}.stats{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){
 .site-under-construction{margin-top:12px;font-size:.8rem}
  .hero{padding:20px 0 4px}
  .hero h1{font-size:1.75rem}
  .hero .lead{font-size:.95rem;margin-bottom:18px}
  form.composer{padding:14px;border-radius:16px}
  textarea{min-height:110px;padding:13px;font-size:1rem}
  .hero.chatting textarea{min-height:56px;padding:9px 12px}
  .hero.chatting h1{font-size:1.1rem}
  .steps,.trust,.grid2{grid-template-columns:1fr}
  .band{padding-top:36px}
  .band>h2{font-size:1.35rem}
  .stats b{font-size:1.5rem}
  .answer{padding:14px 16px}
  .doc{padding-top:24px}
  .doc h1{font-size:1.7rem}
}

/* مصادر الإنترنت تحت الإجابة (المساعد ٢) */
.web-sources{margin-top:12px}
.web-sources ul{margin:0;padding:0;list-style:none;display:grid;gap:8px}
.web-sources li{background:var(--surface);border:1px solid var(--line);border-inline-start:3px solid var(--accent);border-radius:12px;padding:10px 14px;overflow-wrap:anywhere}
.web-sources li a{color:var(--accent);font-weight:600;text-underline-offset:3px}
.web-sources small{display:block;color:var(--muted);font-size:.78rem;margin-top:2px}
.tag.official{background:var(--soft);color:var(--accent);font-size:.72rem;padding:0 7px;border-radius:999px}

/* الصفحة الرئيسية المعتمدة في البروفة. */
.site-under-construction{width:100%;margin:18px auto 4px;padding:10px 18px;border-radius:14px}
.site-under-construction a{color:inherit;font-weight:700;text-underline-offset:3px}
.hero{padding:56px 0 10px;background:none}
.hero>.eyebrow{padding:0;border:0;background:transparent;color:var(--accent);font-size:.9rem;font-weight:700}
.hero h1{max-width:760px;font-size:clamp(2.35rem,5.6vw,4.45rem);line-height:1.25;margin-bottom:16px}
.hero .lead{max-width:700px;font-size:1.08rem;line-height:1.9;margin-bottom:24px}
form.composer{max-width:780px;padding:22px;border-radius:24px;box-shadow:0 18px 50px rgba(11,91,67,.09)}
.stats{gap:16px;margin-top:46px}
.stats .s{min-height:132px;display:flex;flex-direction:column;align-items:center;justify-content:center;border-radius:20px;padding:20px}
.stats b{font-size:2.15rem}
.home-services{text-align:start}
.home-services>.eyebrow{padding:0;border:0;background:transparent;color:var(--accent);font-weight:700}
.home-services>h2{font-size:2rem}
.home-services .library-home-extras{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.home-services .library-feature-card{border-radius:20px;box-shadow:0 10px 28px rgba(11,91,67,.05)}
.steps-band{max-width:none;margin-inline:calc(50% - 50vw);padding:64px max(24px,calc((100vw - 1320px)/2));background:var(--soft);text-align:start}
.steps-band>.eyebrow{margin:0 0 8px;color:var(--accent);font-weight:700}
.steps-band>h2{font-size:clamp(2rem,4vw,3rem);margin:0 0 26px}
.steps-band .steps{gap:18px}
.steps-band .steps li{min-height:170px;padding:24px;border:0;border-radius:18px;background:var(--surface)}
.steps-band .steps li::before{margin-inline-start:auto}
.steps-band .steps h3{font-size:1.18rem}
@media(max-width:640px){.site-under-construction{margin-top:10px}.hero{padding-top:38px}.hero h1{font-size:2.35rem}.hero .lead{font-size:.96rem}.stats{gap:12px;margin-top:34px}.stats .s{min-height:112px;padding:14px}.stats b{font-size:1.85rem}.home-services>h2{font-size:1.55rem}.home-services .library-home-extras{grid-template-columns:1fr}}
@media(max-width:640px){.steps-band{padding:42px 18px}.steps-band .steps li{min-height:0}}