/* ==========================================================================
   Dr. Ahmed Abdelsalam — Professional Identity Site
   style.css — design tokens + global component styles
   ========================================================================== */

:root{
  /* ---- Palette ---- */
  --c-navy:        #0A1F3D;
  --c-navy-2:      #0E2A54;
  --c-navy-deep:   #061225;
  --c-white:       #FFFFFF;
  --c-gold:        #B8923F;
  --c-gold-light:  #E4C77E;
  --c-gray-light:  #F4F5F7;
  --c-gray-100:    #E9EBEF;
  --c-gray-dark:   #2B2F36;
  --c-royal:       #1E3F8F;

  /* ---- Semantic (light mode) ---- */
  --bg:            var(--c-white);
  --bg-alt:        var(--c-gray-light);
  --bg-navy:       var(--c-navy);
  --text:          var(--c-gray-dark);
  --text-soft:     #5B6270;
  --text-invert:   #F3F4F7;
  --border:        var(--c-gray-100);
  --card-bg:       var(--c-white);
  --card-shadow:   0 10px 30px rgba(10, 31, 61, 0.08);

  /* ---- Type ---- */
  --font-display-en: 'Playfair Display', serif;
  --font-body-en:     'Poppins', sans-serif;
  --font-display-ar:  'Tajawal', sans-serif;
  --font-body-ar:     'Cairo', sans-serif;

  --radius-s: 8px;
  --radius-m: 16px;
  --radius-l: 28px;
  --container-max: 1240px;

  --transition: 300ms cubic-bezier(.4,0,.2,1);
}

html[data-theme="dark"]{
  --bg:            #081327;
  --bg-alt:        #0C1B36;
  --bg-navy:       #050D1C;
  --text:          #E7E9EF;
  --text-soft:     #A6ADBD;
  --text-invert:   #0A1F3D;
  --border:        rgba(255,255,255,.08);
  --card-bg:       #0E1D3A;
  --card-shadow:   0 10px 30px rgba(0,0,0,.45);
}

/* ---- Language-driven typography swap ---- */
html[data-lang="en"] body{ font-family: var(--font-body-en); }
html[data-lang="en"] .display{ font-family: var(--font-display-en); }
html[data-lang="ar"] body{ font-family: var(--font-body-ar); }
html[data-lang="ar"] .display{ font-family: var(--font-display-ar); font-weight:700; }

/* ---- Bilingual visibility toggles ---- */
html[data-lang="en"] .lang-ar{ display:none !important; }
html[data-lang="ar"] .lang-en{ display:none !important; }
html[data-lang="ar"] body{ direction: rtl; }
html[data-lang="en"] body{ direction: ltr; }

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0; background:var(--bg); color:var(--text);
  transition: background var(--transition), color var(--transition);
  overflow-x:hidden;
  font-size:16px; line-height:1.75;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ margin:0 0 .5em; line-height:1.25; color:var(--c-navy); }
html[data-theme="dark"] h1, html[data-theme="dark"] h2,
html[data-theme="dark"] h3, html[data-theme="dark"] h4{ color:var(--text-invert); }
p{ margin:0 0 1em; color:var(--text-soft); }
.container{ max-width:var(--container-max); margin-inline:auto; padding-inline:24px; }
section{ padding:110px 0; position:relative; }
@media(max-width:768px){ section{ padding:70px 0; } }

/* focus visibility for accessibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline:3px solid var(--c-gold); outline-offset:3px;
}
@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important; }
}

/* ==========================================================================
   Signature motif: the "docket rule" — a double hairline under eyebrows,
   echoing the ruled header of a formal legal filing.
   ========================================================================== */
.eyebrow{
  display:inline-flex; align-items:center; gap:12px;
  font-family:var(--font-body-en); font-size:.78rem; letter-spacing:.22em;
  text-transform:uppercase; color:var(--c-gold); font-weight:600;
  margin-bottom:18px;
}
html[data-lang="ar"] .eyebrow{ font-family:var(--font-body-ar); letter-spacing:0; font-size:.85rem; }
.eyebrow::before{
  content:""; width:34px; height:2px; background:var(--c-gold);
}
.docket-rule{ position:relative; padding-top:14px; }
.docket-rule::before{
  content:""; position:absolute; top:0; left:0; width:64px; height:3px;
  background: linear-gradient(90deg, var(--c-gold), transparent);
}
html[dir="rtl"] .docket-rule::before, html[data-lang="ar"] .docket-rule::before{ left:auto; right:0; background:linear-gradient(270deg, var(--c-gold), transparent); }

.section-head{ max-width:760px; margin-inline:auto; text-align:center; margin-bottom:64px; }
.section-head h2{ font-size:clamp(1.8rem, 3vw, 2.6rem); }
.section-head p{ font-size:1.05rem; }

.btn{
  display:inline-flex; align-items:center; gap:10px; padding:14px 30px;
  border-radius:100px; font-weight:600; font-size:.95rem; cursor:pointer;
  border:1px solid transparent; transition:all var(--transition); white-space:nowrap;
}
.btn-gold{ background:var(--c-gold); color:var(--c-navy-deep); }
.btn-gold:hover{ background:var(--c-gold-light); transform:translateY(-2px); }
.btn-outline{ border-color:rgba(255,255,255,.5); color:var(--c-white); background:transparent; }
.btn-outline:hover{ background:rgba(255,255,255,.12); transform:translateY(-2px); }
.btn-navy{ background:var(--c-navy); color:#fff; }
.btn-navy:hover{ background:var(--c-navy-2); transform:translateY(-2px); }

/* ---- Loading screen ---- */
#loading-screen{
  position:fixed; inset:0; background:var(--c-navy-deep); z-index:9999;
  display:flex; align-items:center; justify-content:center; flex-direction:column; gap:16px;
  transition:opacity .6s ease, visibility .6s ease;
}
#loading-screen.hide{ opacity:0; visibility:hidden; }
.loader-mark{
  width:56px; height:56px; border-radius:50%;
  border:3px solid rgba(184,146,63,.25); border-top-color:var(--c-gold);
  animation:spin 1s linear infinite;
}
@keyframes spin{ to{ transform:rotate(360deg); } }
.loader-text{ color:var(--c-gold); letter-spacing:.3em; font-size:.75rem; text-transform:uppercase; }

/* ---- Navbar ---- */
.navbar{
  position:fixed; top:0; inset-inline:0; z-index:1000;
  padding:20px 0; transition:all var(--transition); background:transparent;
}
.navbar.scrolled{
  background:var(--bg); box-shadow:0 6px 24px rgba(10,31,61,.08); padding:12px 0;
}
.nav-inner{ display:flex; align-items:center; justify-content:space-between; gap:20px; }
.brand{ display:flex; align-items:center; gap:12px; font-family:var(--font-display-en); }
html[data-lang="ar"] .brand{ font-family:var(--font-display-ar); }
.brand-mark{
  width:44px; height:44px; border-radius:50%; border:2px solid var(--c-gold);
  display:flex; align-items:center; justify-content:center; color:var(--c-gold);
  font-weight:700; font-size:1.1rem;
}
.brand-name{ font-weight:700; font-size:1.05rem; }
.navbar:not(.scrolled) .brand-name, .navbar:not(.scrolled) .nav-link{ color:#fff; }
.brand-name small{ display:block; font-family:var(--font-body-en); font-weight:400; font-size:.7rem; letter-spacing:.15em; color:var(--c-gold); text-transform:uppercase; }
html[data-lang="ar"] .brand-name small{ font-family:var(--font-body-ar); letter-spacing:0; }

.nav-links{ display:flex; align-items:center; gap:30px; }
.nav-link{ font-size:.92rem; font-weight:500; color:var(--text); position:relative; padding-bottom:4px; }
.nav-link::after{ content:""; position:absolute; bottom:0; left:0; width:0; height:2px; background:var(--c-gold); transition:width var(--transition); }
.nav-link:hover::after, .nav-link.active::after{ width:100%; }
.nav-tools{ display:flex; align-items:center; gap:12px; }
.tool-btn{
  width:40px; height:40px; border-radius:50%; border:1px solid var(--border);
  display:flex; align-items:center; justify-content:center; background:transparent;
  color:var(--text); cursor:pointer; transition:all var(--transition); font-size:.85rem;
}
.navbar:not(.scrolled) .tool-btn{ color:#fff; border-color:rgba(255,255,255,.4); }
.tool-btn:hover{ background:var(--c-gold); color:var(--c-navy-deep); border-color:var(--c-gold); }
.lang-toggle{ font-weight:700; width:auto; padding:0 14px; border-radius:100px; }
.nav-toggle{ display:none; background:none; border:none; font-size:1.5rem; color:inherit; cursor:pointer; }

@media(max-width:991px){
  .nav-links{
    position:fixed; top:0; inset-inline-end:0; height:100vh; width:min(320px,80vw);
    background:var(--bg); flex-direction:column; justify-content:center; gap:26px;
    transform:translateX(100%); transition:transform var(--transition); box-shadow:-10px 0 30px rgba(0,0,0,.15);
  }
  html[data-lang="ar"] .nav-links{ transform:translateX(-100%); }
  .nav-links.open{ transform:translateX(0); }
  .navbar:not(.scrolled) .nav-links .nav-link{ color:var(--text); }
  .nav-toggle{ display:block; }
  .navbar:not(.scrolled) .nav-toggle{ color:#fff; }
}

/* ---- Hero ---- */
.hero{
  min-height:100vh; display:flex; align-items:center; position:relative;
  background:radial-gradient(circle at 80% 20%, var(--c-navy-2), var(--c-navy-deep) 70%);
  color:#fff; overflow:hidden; padding-top:120px;
}
.hero::before{
  content:""; position:absolute; inset:0; opacity:.15; pointer-events:none;
  background-image:
    linear-gradient(rgba(184,146,63,.4) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184,146,63,.4) 1px, transparent 1px);
  background-size:60px 60px;
  mask-image:radial-gradient(circle at 70% 30%, black, transparent 70%);
}
.hero-grid{ display:grid; grid-template-columns:1.1fr .9fr; gap:60px; align-items:center; position:relative; z-index:2; }
@media(max-width:991px){ .hero-grid{ grid-template-columns:1fr; } .hero-portrait{ order:-1; margin-inline:auto; } }
.hero-eyebrow{ color:var(--c-gold); letter-spacing:.25em; text-transform:uppercase; font-size:.8rem; font-weight:600; margin-bottom:20px; }
.hero h1{ color:#fff; font-size:clamp(2.3rem, 5vw, 3.6rem); margin-bottom:10px; }
.hero .typed-wrap{ font-size:clamp(1.1rem,2.2vw,1.5rem); color:var(--c-gold-light); min-height:2.2em; margin-bottom:24px; font-weight:600; }
.hero p.lead{ color:rgba(255,255,255,.78); max-width:560px; font-size:1.08rem; }
.hero-cta{ display:flex; gap:16px; flex-wrap:wrap; margin-top:30px; }
.hero-portrait{
  width:min(360px,80vw); aspect-ratio:1/1.1; border-radius:var(--radius-l);
  background:linear-gradient(160deg, var(--c-navy-2), var(--c-navy-deep));
  border:1px solid rgba(184,146,63,.4); position:relative; display:flex; align-items:center; justify-content:center;
  box-shadow:0 30px 60px rgba(0,0,0,.5);
}
.hero-portrait .monogram{ font-family:var(--font-display-en); font-size:5rem; color:var(--c-gold); }
.hero-portrait::after{
  content:""; position:absolute; inset:14px; border:1px solid rgba(184,146,63,.35); border-radius:calc(var(--radius-l) - 8px);
}
.hero-scroll{ position:absolute; bottom:34px; left:50%; transform:translateX(-50%); color:rgba(255,255,255,.6); font-size:.75rem; letter-spacing:.2em; text-transform:uppercase; display:flex; flex-direction:column; align-items:center; gap:8px; z-index:2; }
.hero-scroll .line{ width:1px; height:40px; background:linear-gradient(#B8923F,transparent); animation:scrollLine 1.8s infinite; }
@keyframes scrollLine{ 0%{ transform:scaleY(0); transform-origin:top; } 50%{ transform:scaleY(1); transform-origin:top;} 51%{transform-origin:bottom;} 100%{ transform:scaleY(0); transform-origin:bottom; } }

/* ---- Stats ---- */
.stats-band{ background:var(--c-navy); color:#fff; }
.stats-grid{ display:grid; grid-template-columns:repeat(5,1fr); gap:30px; text-align:center; }
@media(max-width:900px){ .stats-grid{ grid-template-columns:repeat(2,1fr); } }
.stat-item .num{ font-family:var(--font-display-en); font-size:clamp(2rem,4vw,2.8rem); color:var(--c-gold); }
html[data-lang="ar"] .stat-item .num{ font-family:var(--font-display-ar); }
.stat-item .label{ font-size:.85rem; letter-spacing:.05em; color:rgba(255,255,255,.72); margin-top:6px; }

/* ---- Cards ---- */
.card{
  background:var(--card-bg); border-radius:var(--radius-m); padding:34px 28px;
  box-shadow:var(--card-shadow); border:1px solid var(--border); transition:transform var(--transition), box-shadow var(--transition);
  height:100%;
}
.card:hover{ transform:translateY(-6px); box-shadow:0 20px 45px rgba(10,31,61,.14); }
.card .icon-wrap{
  width:54px; height:54px; border-radius:14px; background:linear-gradient(135deg,var(--c-navy),var(--c-royal));
  color:var(--c-gold-light); display:flex; align-items:center; justify-content:center; font-size:1.3rem; margin-bottom:18px;
}
.grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:28px; }
.grid-2{ display:grid; grid-template-columns:repeat(2,1fr); gap:28px; }
@media(max-width:900px){ .grid-3{ grid-template-columns:repeat(2,1fr); } }
@media(max-width:640px){ .grid-3, .grid-2{ grid-template-columns:1fr; } }

/* ---- Practice tag chips ---- */
.chip-cloud{ display:flex; flex-wrap:wrap; gap:12px; justify-content:center; }
.chip{
  padding:10px 20px; border-radius:100px; background:var(--bg-alt); border:1px solid var(--border);
  font-size:.88rem; font-weight:500; color:var(--text); transition:all var(--transition);
}
.chip:hover{ background:var(--c-navy); color:#fff; border-color:var(--c-navy); }

/* ---- Regional tabs ---- */
.region-tabs{ display:flex; gap:10px; flex-wrap:wrap; justify-content:center; margin-bottom:40px; }
.region-tab{
  padding:12px 24px; border-radius:100px; border:1px solid var(--border); background:var(--bg-alt);
  cursor:pointer; font-weight:600; font-size:.9rem; color:var(--text); transition:all var(--transition);
}
.region-tab.active, .region-tab:hover{ background:var(--c-gold); border-color:var(--c-gold); color:var(--c-navy-deep); }
.region-panel{ display:none; }
.region-panel.active{ display:block; animation:fadeIn .5s ease; }
@keyframes fadeIn{ from{opacity:0; transform:translateY(10px);} to{opacity:1; transform:translateY(0);} }

/* ---- World map ---- */
.world-wrap{ position:relative; max-width:900px; margin-inline:auto; }
.world-wrap svg{ width:100%; height:auto; }
.map-dot{ fill:var(--c-gold); }
.map-pulse{ fill:none; stroke:var(--c-gold); stroke-width:2; opacity:.6; animation:pulse 2.4s infinite; }
@keyframes pulse{ 0%{ r:4; opacity:.7;} 100%{ r:16; opacity:0; } }

/* ---- Timeline ---- */
.timeline{ position:relative; max-width:900px; margin-inline:auto; }
.timeline::before{ content:""; position:absolute; inset-inline-start:20px; top:0; bottom:0; width:2px; background:linear-gradient(var(--c-gold), var(--border)); }
@media(min-width:769px){ .timeline::before{ inset-inline-start:50%; margin-inline-start:-1px; } }
.tl-item{ position:relative; padding-inline-start:56px; margin-bottom:46px; }
@media(min-width:769px){
  .tl-item{ width:50%; padding-inline-start:0; padding-inline-end:56px; }
  .tl-item:nth-child(even){ margin-inline-start:50%; padding-inline-end:0; padding-inline-start:56px; }
}
.tl-dot{ position:absolute; inset-inline-start:12px; top:4px; width:18px; height:18px; border-radius:50%; background:var(--c-gold); border:3px solid var(--bg); box-shadow:0 0 0 2px var(--c-gold); }
@media(min-width:769px){
  .tl-item{ inset-inline-start:0; }
  .tl-item .tl-dot{ inset-inline-start:auto; inset-inline-end:-9px; }
  .tl-item:nth-child(even) .tl-dot{ inset-inline-start:-9px; inset-inline-end:auto; }
}
.tl-date{ color:var(--c-gold); font-weight:700; font-size:.85rem; letter-spacing:.06em; text-transform:uppercase; margin-bottom:6px; display:block; }
.tl-card{ background:var(--card-bg); border:1px solid var(--border); border-radius:var(--radius-m); padding:24px 26px; box-shadow:var(--card-shadow); }
.tl-card h4{ margin-bottom:6px; }
.tl-card .org{ color:var(--c-royal); font-weight:600; font-size:.92rem; margin-bottom:8px; display:block; }

/* ---- Testimonial slider ---- */
.testi-card{ background:var(--bg-alt); border-radius:var(--radius-m); padding:40px; text-align:center; max-width:720px; margin-inline:auto; }
.testi-card q{ font-family:var(--font-display-en); font-size:1.3rem; color:var(--c-navy); }
html[data-theme="dark"] .testi-card q{ color:var(--text-invert); }

/* ---- Footer ---- */
footer{ background:var(--c-navy-deep); color:rgba(255,255,255,.75); padding:70px 0 26px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1.2fr; gap:40px; margin-bottom:50px; }
@media(max-width:900px){ .footer-grid{ grid-template-columns:1fr 1fr; } }
@media(max-width:560px){ .footer-grid{ grid-template-columns:1fr; } }
footer h5{ color:#fff; font-size:.95rem; letter-spacing:.05em; text-transform:uppercase; margin-bottom:20px; }
footer a{ display:block; padding:6px 0; color:rgba(255,255,255,.65); transition:color var(--transition); }
footer a:hover{ color:var(--c-gold); }
.footer-social{ display:flex; gap:12px; margin-top:16px; }
.footer-bottom{ border-top:1px solid rgba(255,255,255,.1); padding-top:24px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px; font-size:.85rem; }

/* ---- Back to top ---- */
#backToTop{
  position:fixed; bottom:30px; inset-inline-end:30px; width:48px; height:48px; border-radius:50%;
  background:var(--c-gold); color:var(--c-navy-deep); border:none; display:flex; align-items:center; justify-content:center;
  cursor:pointer; opacity:0; visibility:hidden; transform:translateY(16px); transition:all var(--transition); z-index:900; font-size:1.1rem;
  box-shadow:0 10px 24px rgba(184,146,63,.4);
}
#backToTop.show{ opacity:1; visibility:visible; transform:translateY(0); }

/* ---- Page header (inner pages) ---- */
.page-header{
  padding:170px 0 90px; background:linear-gradient(160deg, var(--c-navy), var(--c-navy-deep)); color:#fff; text-align:center;
}
.page-header h1{ color:#fff; font-size:clamp(2rem,4vw,3rem); }
.breadcrumb-min{ color:var(--c-gold-light); font-size:.85rem; letter-spacing:.1em; text-transform:uppercase; }

/* ---- Forms ---- */
.form-control-custom{
  width:100%; padding:16px 18px; border-radius:var(--radius-s); border:1px solid var(--border);
  background:var(--bg-alt); color:var(--text); font-family:inherit; margin-bottom:20px; transition:border var(--transition);
}
.form-control-custom:focus{ border-color:var(--c-gold); outline:none; }

/* ---- Utility ---- */
.text-gold{ color:var(--c-gold); }
.bg-alt-section{ background:var(--bg-alt); }
.center{ text-align:center; }