/* ============================================================
   موقع أ.د. عماد محمد فرحان الدليمي — ورقة الأنماط
   تصميم: ليل أكاديمي — زجاج + نيون ذهبي/فيروزي
   ============================================================ */

:root{
  --bg-0:#070B1A;          /* أعمق طبقة ليلية */
  --bg-1:#0C1230;          /* النيلي الأساس */
  --bg-2:#121A3F;
  --glass:rgba(255,255,255,.055);
  --glass-strong:rgba(255,255,255,.09);
  --glass-border:rgba(255,255,255,.14);
  --gold:#F2C14E;          /* تذهيب المخطوطات */
  --gold-soft:rgba(242,193,78,.45);
  --cyan:#39D5E0;          /* نيون فيروزي */
  --cyan-soft:rgba(57,213,224,.40);
  --rose:#E879B9;          /* لمسة نادرة */
  --ink:#EAF0FF;
  --ink-dim:#A8B3D6;
  --radius:22px;
  --font-display:"Amiri",serif;
  --font-body:"IBM Plex Sans Arabic","Tajawal",sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  background:var(--bg-0);
  color:var(--ink);
  direction:rtl;
  overflow-x:hidden;
  line-height:1.85;
  min-height:100vh;
}

/* ---------- خلفية النجوم والهالات ---------- */
.bg-scene{position:fixed;inset:0;z-index:-2;background:
  radial-gradient(1100px 700px at 85% -10%, rgba(57,213,224,.10), transparent 60%),
  radial-gradient(900px 600px at 10% 110%, rgba(242,193,78,.09), transparent 60%),
  radial-gradient(700px 500px at 50% 50%, rgba(99,102,241,.07), transparent 65%),
  linear-gradient(180deg,var(--bg-0) 0%,var(--bg-1) 55%,var(--bg-0) 100%);}
.bg-pattern{position:fixed;inset:0;z-index:-1;opacity:.05;pointer-events:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120' viewBox='0 0 120 120'%3E%3Cg fill='none' stroke='%23F2C14E' stroke-width='1'%3E%3Cpath d='M60 6 73 40 108 40 80 62 91 96 60 75 29 96 40 62 12 40 47 40Z'/%3E%3C/g%3E%3C/svg%3E");
  background-size:120px 120px;}

/* ---------- الترويسة الزجاجية ---------- */
header{
  position:sticky;top:0;z-index:100;
  backdrop-filter:blur(18px) saturate(150%);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  background:rgba(10,14,38,.72);
  border-bottom:1px solid var(--glass-border);
}
.header-inner{max-width:1200px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:.7rem 1.2rem;gap:1rem}
.brand{display:flex;align-items:center;gap:.8rem;cursor:pointer}
.brand-mark{
  width:46px;height:46px;border-radius:14px;flex:0 0 auto;
  display:grid;place-items:center;font-family:var(--font-display);font-size:1.5rem;color:var(--gold);
  background:linear-gradient(140deg,rgba(242,193,78,.18),rgba(57,213,224,.12));
  border:1px solid rgba(242,193,78,.4);
  box-shadow:0 0 18px rgba(242,193,78,.25), inset 0 0 12px rgba(242,193,78,.12);
}
.brand-text b{display:block;font-family:var(--font-display);font-size:1.12rem;letter-spacing:.2px}
.brand-text span{font-size:.72rem;color:var(--ink-dim)}

nav.tabs{display:flex;gap:.25rem;flex-wrap:wrap;justify-content:flex-end}
nav.tabs a{
  color:var(--ink-dim);text-decoration:none;font-size:.88rem;padding:.5rem .85rem;border-radius:12px;
  border:1px solid transparent;transition:all .3s ease;white-space:nowrap;
}
nav.tabs a:hover{color:var(--ink);background:var(--glass)}
nav.tabs a.active{
  color:var(--gold);background:var(--glass-strong);border-color:rgba(242,193,78,.35);
  box-shadow:0 0 14px rgba(242,193,78,.18), inset 0 0 10px rgba(242,193,78,.06);
}
.menu-btn{display:none;background:var(--glass);border:1px solid var(--glass-border);color:var(--ink);
  border-radius:12px;padding:.5rem .8rem;font-size:1.2rem;cursor:pointer}

/* ---------- شريط الأخبار ---------- */
.ticker{
  position:relative;overflow:hidden;border-bottom:1px solid var(--glass-border);
  background:linear-gradient(90deg,rgba(57,213,224,.07),rgba(242,193,78,.07));
  display:flex;align-items:center;
}
.ticker-label{
  flex:0 0 auto;padding:.45rem 1rem;font-size:.8rem;font-weight:700;color:#06101e;z-index:2;
  background:linear-gradient(135deg,var(--gold),#ffd97a);
  box-shadow:0 0 22px var(--gold-soft);
  clip-path:polygon(0 0,100% 0,calc(100% - 14px) 100%,0 100%);
}
.ticker-track{flex:1;overflow:hidden;position:relative;height:2.1rem}
.ticker-move{
  position:absolute;white-space:nowrap;display:flex;gap:3.5rem;align-items:center;height:100%;
  animation:ticker 40s linear infinite;
}
.ticker:hover .ticker-move{animation-play-state:paused}
.ticker-move span{font-size:.86rem;color:var(--ink-dim)}
.ticker-move span::before{content:"◈";color:var(--cyan);margin-left:.6rem;text-shadow:0 0 8px var(--cyan-soft)}
@keyframes ticker{from{transform:translateX(-100%)}to{transform:translateX(100%)}}

/* ---------- الحاوية والمقاطع ---------- */
main{max-width:1200px;margin:auto;padding:2rem 1.2rem 4rem}
.page{display:none;animation:pageIn .55s ease both}
.page.show{display:block}
@keyframes pageIn{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}

.section-title{
  font-family:var(--font-display);font-size:clamp(1.7rem,3.5vw,2.4rem);margin:2.2rem 0 1.2rem;
  display:flex;align-items:center;gap:.9rem;
}
.section-title::after{content:"";flex:1;height:1px;
  background:linear-gradient(90deg,var(--gold-soft),transparent)}
.section-title .icon{filter:drop-shadow(0 0 10px var(--gold-soft))}

/* ---------- البطاقات الزجاجية ---------- */
.glass{
  background:var(--glass);
  border:1px solid var(--glass-border);
  border-radius:var(--radius);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:0 8px 32px rgba(0,0,0,.35);
  transition:transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.glass:hover{transform:translateY(-4px);border-color:rgba(57,213,224,.35);
  box-shadow:0 14px 40px rgba(0,0,0,.45), 0 0 24px rgba(57,213,224,.10)}

/* ---------- البطل (الصفحة الرئيسية) ---------- */
.hero{display:grid;grid-template-columns:1.25fr .75fr;gap:2rem;align-items:center;padding:3rem 0 1.5rem}
.hero h1{
  font-family:var(--font-display);font-size:clamp(2rem,5vw,3.4rem);line-height:1.4;
  background:linear-gradient(120deg,#fff 20%,var(--gold) 55%,var(--cyan) 95%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  animation:shine 7s ease-in-out infinite;background-size:200% auto;
}
@keyframes shine{0%,100%{background-position:0% center}50%{background-position:100% center}}
.hero .role{font-size:1.1rem;color:var(--gold);margin-top:.4rem;text-shadow:0 0 18px var(--gold-soft)}
.hero .sub{color:var(--ink-dim);margin-top:.3rem}
.hero .tagline{margin-top:1rem;font-size:.95rem;color:var(--cyan);letter-spacing:.4px}
.hero-cta{margin-top:1.6rem;display:flex;gap:.8rem;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:.5rem;text-decoration:none;cursor:pointer;
  padding:.7rem 1.4rem;border-radius:14px;font-size:.95rem;font-family:var(--font-body);
  border:1px solid var(--glass-border);color:var(--ink);background:var(--glass);transition:all .3s;
}
.btn:hover{transform:translateY(-2px)}
.btn.gold{border-color:rgba(242,193,78,.5);color:var(--gold);
  box-shadow:0 0 18px rgba(242,193,78,.18)}
.btn.gold:hover{box-shadow:0 0 30px rgba(242,193,78,.35)}
.btn.cyan{border-color:rgba(57,213,224,.5);color:var(--cyan);
  box-shadow:0 0 18px rgba(57,213,224,.15)}

.portrait{
  position:relative;border-radius:30px;overflow:hidden;aspect-ratio:4/5;max-width:340px;margin:auto;
  border:1px solid rgba(242,193,78,.35);
  box-shadow:0 0 0 1px rgba(57,213,224,.15), 0 0 45px rgba(242,193,78,.16), 0 22px 50px rgba(0,0,0,.5);
}
.portrait img{width:100%;height:100%;object-fit:cover;display:block}
.portrait .ph{
  width:100%;height:100%;display:grid;place-items:center;text-align:center;padding:1.5rem;
  background:linear-gradient(160deg,rgba(242,193,78,.10),rgba(57,213,224,.08),rgba(12,18,48,.6));
  color:var(--ink-dim);font-size:.9rem;
}
.portrait .ph .big{font-family:var(--font-display);font-size:4rem;color:var(--gold);
  text-shadow:0 0 28px var(--gold-soft);display:block;margin-bottom:.6rem}

/* ---------- الإحصاءات ---------- */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1rem;margin:2rem 0}
.stat{padding:1.3rem 1rem;text-align:center}
.stat b{display:block;font-size:2rem;font-family:var(--font-display);color:var(--gold);
  text-shadow:0 0 16px var(--gold-soft)}
.stat span{font-size:.85rem;color:var(--ink-dim)}

/* ---------- شبكات البطاقات ---------- */
.grid{display:grid;gap:1.2rem}
.grid.cols-3{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}
.grid.cols-2{grid-template-columns:repeat(auto-fill,minmax(340px,1fr))}
.card{padding:1.4rem 1.5rem}
.card h3{font-family:var(--font-display);font-size:1.2rem;margin-bottom:.5rem;color:var(--ink)}
.card .meta{font-size:.82rem;color:var(--cyan);margin-bottom:.4rem}
.card p{font-size:.92rem;color:var(--ink-dim)}
.card a.more{color:var(--gold);font-size:.85rem;text-decoration:none}
.card a.more:hover{text-decoration:underline}

/* غلاف كتاب رمزي */
.book-card{display:flex;gap:1.1rem;align-items:stretch;padding:1.2rem}
.book-spine{
  flex:0 0 76px;border-radius:10px;display:grid;place-items:center;font-size:1.8rem;
  background:linear-gradient(160deg,rgba(242,193,78,.22),rgba(57,213,224,.10));
  border:1px solid rgba(242,193,78,.35);color:var(--gold);
  box-shadow:inset 0 0 16px rgba(242,193,78,.12);
}
.book-spine img{width:100%;height:100%;object-fit:cover;border-radius:10px}
.poem{font-family:var(--font-display);font-size:1.05rem;color:var(--ink);margin-top:.6rem;
  border-right:3px solid var(--gold);padding-right:.9rem;line-height:2.1}

/* ---------- قائمة البحوث ---------- */
.search-row{display:flex;gap:.8rem;margin:1rem 0 1.4rem;flex-wrap:wrap}
.search-row input{
  flex:1;min-width:220px;padding:.75rem 1.1rem;border-radius:14px;font-family:var(--font-body);
  background:var(--glass);border:1px solid var(--glass-border);color:var(--ink);outline:none;font-size:.95rem;
}
.search-row input:focus{border-color:var(--cyan);box-shadow:0 0 16px rgba(57,213,224,.18)}
.research-item{padding:1.1rem 1.4rem;margin-bottom:.9rem;display:flex;gap:1rem;align-items:flex-start}
.research-item .num{
  flex:0 0 auto;width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  font-family:var(--font-display);color:var(--cyan);border:1px solid rgba(57,213,224,.4);
  box-shadow:0 0 12px rgba(57,213,224,.15);font-size:1.05rem;
}
.research-item h4{font-size:1rem;margin-bottom:.25rem}
.research-item .meta{font-size:.8rem;color:var(--ink-dim)}
.research-item .meta b{color:var(--gold);font-weight:600}

/* ---------- الجدول الزمني للنشاطات ---------- */
.timeline{position:relative;padding-right:1.6rem;margin-top:1rem}
.timeline::before{content:"";position:absolute;right:.45rem;top:0;bottom:0;width:2px;
  background:linear-gradient(180deg,var(--gold-soft),var(--cyan-soft),transparent)}
.tl-item{position:relative;margin-bottom:1.1rem;padding:1rem 1.3rem}
.tl-item::before{content:"";position:absolute;right:-1.6rem;top:1.4rem;width:12px;height:12px;border-radius:50%;
  background:var(--gold);box-shadow:0 0 14px var(--gold-soft)}
.tl-item .badge{
  display:inline-block;font-size:.72rem;padding:.15rem .7rem;border-radius:999px;margin-bottom:.4rem;
  border:1px solid rgba(57,213,224,.45);color:var(--cyan);
}

/* ---------- السيرة ---------- */
.cv-block{padding:1.4rem 1.6rem;margin-bottom:1.2rem}
.cv-block h3{font-family:var(--font-display);color:var(--gold);font-size:1.25rem;margin-bottom:.8rem}
.cv-line{display:flex;gap:1rem;padding:.45rem 0;border-bottom:1px dashed rgba(255,255,255,.07)}
.cv-line:last-child{border-bottom:none}
.cv-line .y{flex:0 0 80px;color:var(--cyan);font-size:.85rem}
.cv-line .t{font-size:.93rem;color:var(--ink-dim)}
ul.ach{list-style:none}
ul.ach li{padding:.4rem 0;color:var(--ink-dim);font-size:.93rem}
ul.ach li::before{content:"✦";color:var(--gold);margin-left:.6rem;text-shadow:0 0 8px var(--gold-soft)}

/* ---------- معرض الصور ---------- */
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1rem;margin-top:1.2rem}
.g-item{position:relative;border-radius:18px;overflow:hidden;cursor:pointer;aspect-ratio:1;
  border:1px solid var(--glass-border);transition:transform .35s, box-shadow .35s}
.g-item img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.g-item:hover{transform:translateY(-4px);box-shadow:0 0 26px rgba(57,213,224,.18)}
.g-item:hover img{transform:scale(1.07)}
.g-item .cap{position:absolute;inset-inline:0;bottom:0;padding:.6rem .9rem;font-size:.8rem;
  background:linear-gradient(0deg,rgba(5,8,22,.85),transparent);color:var(--ink)}
.empty-note{padding:2rem;text-align:center;color:var(--ink-dim);font-size:.95rem}

.lightbox{position:fixed;inset:0;z-index:300;display:none;place-items:center;
  background:rgba(4,6,18,.92);backdrop-filter:blur(8px)}
.lightbox.open{display:grid}
.lightbox img{max-width:92vw;max-height:84vh;border-radius:14px;
  box-shadow:0 0 60px rgba(242,193,78,.25)}
.lightbox .cap{position:absolute;bottom:4vh;color:var(--ink);font-size:.95rem}
.lightbox .close{position:absolute;top:3vh;left:3vw;font-size:2rem;color:var(--ink);cursor:pointer;
  background:none;border:none}

/* ---------- التواصل ---------- */
.social-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1rem;margin-top:1.2rem}
.social-card{display:flex;align-items:center;gap:.9rem;padding:1.1rem 1.2rem;text-decoration:none;color:var(--ink)}
.social-card .ic{font-size:1.6rem;filter:drop-shadow(0 0 10px var(--cyan-soft))}
.social-card span{font-size:.95rem}
.contact-info{margin-top:1.4rem;padding:1.4rem 1.6rem}
.contact-info p{font-size:.95rem;color:var(--ink-dim);padding:.3rem 0;direction:ltr;text-align:right}
.contact-info p b{color:var(--gold);direction:rtl}

/* ---------- التذييل ---------- */
footer{border-top:1px solid var(--glass-border);padding:1.6rem 1.2rem;text-align:center;
  color:var(--ink-dim);font-size:.85rem;background:rgba(8,11,28,.6)}
footer .neon{color:var(--gold);text-shadow:0 0 12px var(--gold-soft)}

/* ---------- ظهور عند التمرير ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease, transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- استجابة الشاشات ---------- */
@media(max-width:960px){
  .hero{grid-template-columns:1fr;text-align:center}
  .hero-cta{justify-content:center}
  .portrait{max-width:260px}
}
@media(max-width:820px){
  .menu-btn{display:block}
  nav.tabs{
    display:none;position:absolute;top:100%;inset-inline:0;flex-direction:column;align-items:stretch;
    background:rgba(8,11,30,.97);backdrop-filter:blur(20px);padding:1rem;gap:.4rem;
    border-bottom:1px solid var(--glass-border);
  }
  nav.tabs.open{display:flex}
  nav.tabs a{text-align:center;padding:.8rem}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001s!important;transition-duration:.001s!important}
}

/* ============================================================
   إضافات النسخة الثانية: ثنائية اللغة + التحميل + التطبيقات
   ============================================================ */

.header-actions{display:flex;align-items:center;gap:.5rem;order:3}
.lang-btn{
  background:linear-gradient(135deg,rgba(57,213,224,.16),rgba(242,193,78,.14));
  border:1px solid rgba(57,213,224,.45);color:var(--cyan);
  border-radius:12px;padding:.45rem .9rem;font-size:.88rem;font-weight:700;cursor:pointer;
  font-family:var(--font-body);transition:all .3s;
  box-shadow:0 0 14px rgba(57,213,224,.15);
}
.lang-btn:hover{box-shadow:0 0 26px rgba(57,213,224,.35);transform:translateY(-1px)}

/* العنوان الكبير (هارفارد) */
.hero .headline{
  font-family:var(--font-display);
  font-size:clamp(1.15rem,2.6vw,1.7rem);
  margin-top:.9rem;color:var(--cyan);
  text-shadow:0 0 22px rgba(57,213,224,.35);
  line-height:1.7;
}
.hero .headline-sub{
  font-size:.95rem;color:var(--ink);margin-top:.25rem;
  padding:.45rem .9rem;display:inline-block;border-radius:12px;
  background:linear-gradient(120deg,rgba(164,52,58,.22),rgba(242,193,78,.12));
  border:1px solid rgba(242,193,78,.35);
  box-shadow:0 0 18px rgba(242,193,78,.12);
}
.hero .role{margin-top:.9rem}

/* بطاقات التحميل */
.dl-card{padding:1.2rem;text-align:center;display:flex;flex-direction:column;gap:.8rem;align-items:center}
.dl-card .dl-cover{
  width:150px;height:215px;border-radius:12px;overflow:hidden;display:grid;place-items:center;
  font-size:3rem;border:1px solid rgba(242,193,78,.3);
  box-shadow:0 8px 26px rgba(0,0,0,.45), 0 0 20px rgba(242,193,78,.10);
}
.dl-card .dl-cover img{width:100%;height:100%;object-fit:cover}
.dl-card h3{font-size:.95rem;font-family:var(--font-body);font-weight:600;line-height:1.7;flex:1}
.btn.soon{opacity:.55;cursor:default;border-style:dashed}

/* بطاقات التطبيقات */
.app-card{padding:1.5rem;text-align:center;display:flex;flex-direction:column;gap:.7rem;align-items:center}
.app-icon{
  width:74px;height:74px;border-radius:22px;display:grid;place-items:center;font-size:2.2rem;
  background:linear-gradient(140deg,rgba(57,213,224,.16),rgba(242,193,78,.12));
  border:1px solid rgba(57,213,224,.4);
  box-shadow:0 0 22px rgba(57,213,224,.18), inset 0 0 14px rgba(57,213,224,.08);
}
.app-card h3{font-family:var(--font-display);font-size:1.2rem}
.app-card p{font-size:.87rem;color:var(--ink-dim);flex:1}

/* أغلفة الكتب في صفحة المؤلفات */
.book-spine{flex:0 0 96px;min-height:140px;overflow:hidden}

/* ---------- دعم الاتجاه الإنجليزي LTR ---------- */
[dir="ltr"] body, [dir="ltr"]{direction:ltr}
[dir="ltr"] .ticker-label{clip-path:polygon(0 0,100% 0,100% 100%,14px 100%)}
[dir="ltr"] .ticker-move{animation-name:tickerLtr}
@keyframes tickerLtr{from{transform:translateX(100%)}to{transform:translateX(-100%)}}
[dir="ltr"] .ticker-move span::before{margin-left:0;margin-right:.6rem}
[dir="ltr"] .section-title::after{background:linear-gradient(270deg,var(--gold-soft),transparent)}
[dir="ltr"] .poem{border-right:none;border-left:3px solid var(--gold);padding-right:0;padding-left:.9rem}
[dir="ltr"] .timeline{padding-right:0;padding-left:1.6rem}
[dir="ltr"] .timeline::before{right:auto;left:.45rem}
[dir="ltr"] .tl-item::before{right:auto;left:-1.6rem}
[dir="ltr"] ul.ach li::before{margin-left:0;margin-right:.6rem}
[dir="ltr"] .contact-info p{text-align:left}
[dir="ltr"] nav.tabs{justify-content:flex-end}
[dir="ltr"] .lightbox .close{left:auto;right:3vw}
[dir="ltr"] .hero h1,[dir="ltr"] .brand-text b{font-family:var(--font-display)}