/* ============================================================
   DIGITAL HULOOL — Design System
   Color DNA sampled from the brand logo (navy → blue → cyan → sky)
   ============================================================ */
:root{
  --navy-900:#0a1640;
  --navy-800:#0f2154;
  --navy-700:#16306f;
  --navy:#1b2d6b;
  --blue:#1080c0;
  --cyan:#10b0d0;
  --sky:#90e0f0;
  --pale:#d0f0f0;

  --ink:#0c1733;
  --slate:#48577d;
  --mute:#7c89a8;
  --line:rgba(16,48,111,.12);
  --paper:#f4f7fc;
  --paper-2:#eaf1fb;
  --white:#ffffff;

  --grad: linear-gradient(115deg,#1b2d6b 0%,#1170bd 38%,#10b0d0 72%,#7ed7ef 100%);
  --grad-soft: linear-gradient(135deg,rgba(27,45,107,.10),rgba(16,176,208,.10));
  --grad-text: linear-gradient(100deg,#2f6fd6 0%,#10b0d0 60%,#69d0ec 100%);

  --shadow-sm: 0 2px 10px rgba(11,26,74,.06);
  --shadow-md: 0 18px 50px -18px rgba(11,26,74,.28);
  --shadow-lg: 0 40px 90px -30px rgba(11,26,74,.45);

  --r-sm:14px; --r-md:22px; --r-lg:32px; --r-xl:42px;

  --maxw:1240px;
  --pad: clamp(20px,5vw,80px);

  --font-display:"Space Grotesk","IBM Plex Sans Arabic",system-ui,sans-serif;
  --font-body:"IBM Plex Sans","IBM Plex Sans Arabic",system-ui,sans-serif;
  --ease:cubic-bezier(.22,.61,.36,1);
}
[dir="rtl"]{
  --font-display:"IBM Plex Sans Arabic","Space Grotesk",sans-serif;
  --font-body:"IBM Plex Sans Arabic","IBM Plex Sans",sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-body);
  background:var(--navy-900);
  color:var(--ink);
  line-height:1.6;
  overflow-x:hidden;
}
body.locked{overflow:hidden;height:100vh}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
section{position:relative}

/* lang visibility */
[data-en],[data-ar]{display:none}
html[lang="en"] [data-en]{display:revert}
html[lang="ar"] [data-ar]{display:revert}
html[lang="en"] [data-en].block{display:block}
html[lang="ar"] [data-ar].block{display:block}

.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--pad)}

/* ---------- Type ---------- */
.eyebrow{
  font-family:var(--font-body);
  font-size:.78rem;letter-spacing:.22em;text-transform:uppercase;
  font-weight:600;color:var(--cyan);
  display:inline-flex;align-items:center;gap:.6em;
}
[dir="rtl"] .eyebrow{letter-spacing:.06em}
h1,h2,h3{font-family:var(--font-display);line-height:1.05;font-weight:600;letter-spacing:-.02em}
[dir="rtl"] h1,[dir="rtl"] h2,[dir="rtl"] h3{letter-spacing:0;line-height:1.2}
.display{font-size:clamp(2.6rem,6.4vw,5.6rem);font-weight:700}
.h2{font-size:clamp(2rem,4.2vw,3.4rem)}
.lead{font-size:clamp(1.05rem,1.5vw,1.35rem);color:var(--slate);max-width:60ch}
.grad-ink{background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.6em;
  font-weight:600;font-size:1rem;border-radius:100px;
  padding:.95em 1.6em;transition:transform .3s var(--ease),box-shadow .3s var(--ease),background .3s;
  white-space:nowrap;
}
.btn .ic{width:1.05em;height:1.05em;transition:transform .3s var(--ease)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 14px 34px -12px rgba(16,128,192,.7)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 48px -14px rgba(16,176,208,.85)}
.btn-primary:hover .ic{transform:translateX(.25em)}
[dir="rtl"] .btn-primary:hover .ic{transform:translateX(-.25em)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.22)}
.btn-ghost:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}
.btn-dark{background:var(--navy);color:#fff}
.btn-dark:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}

/* ============================================================
   SPLASH — cinematic logo reveal (small → large + brand glow)
   ============================================================ */
#splash{
  position:fixed;inset:0;z-index:200;
  background:radial-gradient(130% 120% at 50% 45%,#15265e 0%,#0a1640 60%,#070f28 100%);
  display:grid;place-items:center;
  transition:opacity .9s var(--ease),visibility .9s;
}
#splash.gone{opacity:0;visibility:hidden}
.splash-stage{position:relative;display:flex;flex-direction:column;align-items:center;gap:32px}
.splash-logoWrap{position:relative;width:170px;height:170px;display:grid;place-items:center}
.splash-glow{
  position:absolute;left:50%;top:50%;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(16,176,208,.5) 0%,rgba(47,111,214,.22) 46%,transparent 70%);
  filter:blur(26px);opacity:0;z-index:0;pointer-events:none;
  transform:translate(-50%,-50%) scale(.4);
}
.splash-grid{position:relative;z-index:1;width:158px;height:158px;display:block;
  transform:scale(.32);opacity:0;will-change:transform,opacity;
  filter:drop-shadow(0 18px 40px rgba(16,176,208,.35))}
.splash-word{font-family:var(--font-display);font-weight:700;letter-spacing:.06em;color:#fff;
  font-size:1.6rem;opacity:0;transform:translateY(10px);white-space:nowrap}
.splash-word span{color:var(--sky);font-weight:300}
.splash-tag{color:var(--cyan);font-size:.8rem;letter-spacing:.2em;text-transform:uppercase;
  opacity:0;transform:translateY(8px)}

/* play state drives (and re-drives) the reveal */
#splash.playing .splash-grid{animation:splashLogo 2.5s cubic-bezier(.16,1,.3,1) forwards}
#splash.playing .splash-glow{animation:splashGlow 2.7s ease-out forwards}
#splash.playing .splash-word{animation:splashFade 1s var(--ease) 1.55s forwards}
#splash.playing .splash-tag{animation:splashFade 1s var(--ease) 1.85s forwards}
@keyframes splashLogo{0%{transform:scale(.32);opacity:0}22%{opacity:1}100%{transform:scale(1);opacity:1}}
@keyframes splashGlow{0%{transform:translate(-50%,-50%) scale(.4);opacity:0}45%{opacity:.85}100%{transform:translate(-50%,-50%) scale(1.25);opacity:.6}}
@keyframes splashFade{to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  #splash.playing .splash-grid{animation:none;transform:scale(1);opacity:1}
  #splash.playing .splash-glow{animation:none;opacity:.6;transform:translate(-50%,-50%) scale(1.1)}
  #splash.playing .splash-word,#splash.playing .splash-tag{animation:none;opacity:1;transform:none}
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header{
  position:fixed;top:0;inset-inline:0;z-index:120;
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;padding:22px var(--pad);
  transition:background .4s var(--ease),padding .4s var(--ease),box-shadow .4s;
}
.site-header.solid{background:rgba(9,18,42,.82);backdrop-filter:blur(14px);
  padding-block:14px;box-shadow:0 1px 0 rgba(255,255,255,.06)}
.brand{display:flex;align-items:center;gap:16px;padding-block:2px;flex:none}
.brand-mark{width:46px;height:46px;flex:none}
.brand-word{display:flex;flex-direction:column;line-height:1.05}
.brand-word b{font-family:var(--font-display);font-weight:700;color:#fff;font-size:1.18rem;letter-spacing:.05em;white-space:nowrap}
.brand-word b span{font-weight:300;letter-spacing:.08em}
.brand-word small{color:var(--cyan);font-size:.6rem;letter-spacing:.26em;text-transform:uppercase;margin-top:6px;opacity:.85}
[dir="rtl"] .brand-word small{letter-spacing:.06em}

.nav{display:flex;align-items:center;gap:2px;flex:0 1 auto;min-width:0}
.nav a{color:rgba(255,255,255,.78);font-size:.9rem;font-weight:500;padding:8px 12px;border-radius:100px;white-space:nowrap;
  transition:color .25s,background .25s}
.nav a:hover{color:#fff;background:rgba(255,255,255,.08)}
.header-tools{display:flex;align-items:center;gap:12px;flex:none}
.lang-toggle{display:flex;align-items:center;border:1px solid rgba(255,255,255,.22);border-radius:100px;overflow:hidden}
.lang-toggle button{color:rgba(255,255,255,.6);font-size:.8rem;font-weight:600;padding:7px 12px;transition:.25s}
.lang-toggle button.on{background:rgba(255,255,255,.14);color:#fff}
.header-cta{font-size:.9rem;padding:.7em 1.2em;white-space:nowrap}
.burger{display:none;width:44px;height:44px;border-radius:12px;color:#fff;
  background:rgba(255,255,255,.1);place-items:center}
.burger svg{width:22px;height:22px}

/* ============================================================
   HERO
   ============================================================ */
.hero{
  min-height:100vh;position:relative;display:flex;align-items:center;
  background:radial-gradient(140% 100% at 80% 10%,#173072 0%,#0c1c4d 45%,#091231 100%);
  color:#fff;overflow:hidden;padding-block:140px 80px;
}
[dir="rtl"] .hero{background:radial-gradient(140% 100% at 20% 10%,#173072 0%,#0c1c4d 45%,#091231 100%)}
.hero-grid-bg{position:absolute;inset:0;opacity:.5;
  background-image:radial-gradient(rgba(125,190,235,.13) 1.2px,transparent 1.2px);
  background-size:34px 34px;mask:radial-gradient(120% 90% at 70% 20%,#000,transparent 75%)}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;width:100%}
.hero-copy{max-width:42rem}
.hero h1{margin:18px 0 22px}
.hero h1 .l2{display:block;background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-desc{color:rgba(220,232,255,.82);font-size:clamp(1.05rem,1.5vw,1.3rem);max-width:38ch;margin-bottom:34px}
.hero-cta-row{display:flex;gap:14px;flex-wrap:wrap;align-items:center}

/* differentiator ticker */
.ticker{display:flex;align-items:center;gap:14px;margin-bottom:6px;height:30px;overflow:hidden}
.ticker-label{font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:rgba(255,255,255,.45);flex:none}
.ticker-track{position:relative;height:30px;flex:1;min-width:0}
.ticker-item{position:absolute;inset:0;display:flex;align-items:center;gap:.5em;
  font-weight:600;color:var(--sky);opacity:0;transform:translateY(100%);
  transition:opacity .5s var(--ease),transform .5s var(--ease);white-space:nowrap}
.ticker-item.on{opacity:1;transform:none}
.ticker-item.out{opacity:0;transform:translateY(-100%)}
.ticker-item .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);flex:none}

/* stat trio */
.hero-stats{display:flex;gap:12px;margin-top:42px;flex-wrap:wrap}
.stat-pill{background:rgba(125,190,235,.10);border:1px solid rgba(125,190,235,.2);
  border-radius:var(--r-sm);padding:16px 20px;min-width:120px;backdrop-filter:blur(4px)}
.stat-pill b{display:block;font-family:var(--font-display);font-size:1.5rem;color:#fff;font-weight:700}
.stat-pill span{font-size:.82rem;color:rgba(220,232,255,.7)}

/* hero motif (brand dot grid — calm, matches header logo) */
.hero-art{position:relative;aspect-ratio:1;display:grid;place-items:center}
.hero-art svg{width:100%;max-width:440px;filter:drop-shadow(0 30px 60px rgba(16,176,208,.25))}
.mesh-dot{transform-box:fill-box;transform-origin:center;
  animation:dotBreath 7s ease-in-out infinite;animation-delay:var(--d,0s)}
@keyframes dotBreath{0%,100%{transform:translateY(0)}50%{transform:translateY(-2.5px)}}
@media (prefers-reduced-motion:reduce){.mesh-dot{animation:none}}
.scroll-hint{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:8px;color:rgba(255,255,255,.5);
  font-size:.72rem;letter-spacing:.2em;text-transform:uppercase}
.scroll-hint .mouse{width:22px;height:34px;border:1.5px solid rgba(255,255,255,.4);border-radius:12px;position:relative}
.scroll-hint .mouse::after{content:"";position:absolute;top:6px;left:50%;width:3px;height:6px;border-radius:3px;
  background:var(--sky);transform:translateX(-50%);animation:wheel 1.6s ease-in-out infinite}
@keyframes wheel{0%{opacity:0;top:6px}40%{opacity:1}100%{opacity:0;top:16px}}

/* ============================================================
   GENERIC SECTION SHELLS
   ============================================================ */
.section{padding-block:clamp(80px,11vh,140px)}
.section.light{background:var(--paper);color:var(--ink)}
.section.paper2{background:var(--paper-2);color:var(--ink)}
.section.dark{background:var(--navy-900);color:#fff}
.section-head{max-width:64ch;margin-bottom:54px}
.section-head .lead{margin-top:18px}
.dark .lead{color:rgba(220,232,255,.78)}

/* reveal */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:.08s}
.reveal[data-d="2"]{transition-delay:.16s}
.reveal[data-d="3"]{transition-delay:.24s}
.reveal[data-d="4"]{transition-delay:.32s}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ---------- About cards ---------- */
.about-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.about-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:fc}
.about-intro{font-size:clamp(1.6rem,2.8vw,2.6rem);font-family:var(--font-display);font-weight:600;
  line-height:1.28;letter-spacing:-.015em;max-width:none;color:var(--ink);margin:18px 0 48px}
[dir="rtl"] .about-intro{line-height:1.4}
.about-intro em{font-style:normal;background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}
.fcard{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 24px 28px;position:relative;overflow:hidden;counter-increment:fc;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease);
  box-shadow:var(--shadow-sm);
}
.fcard:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.fcard::before{content:"";position:absolute;inset-inline:0;top:0;height:3px;
  background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .45s var(--ease)}
[dir="rtl"] .fcard::before{transform-origin:right}
.fcard:hover::before{transform:scaleX(1)}
.fcard::after{content:"0" counter(fc);position:absolute;top:22px;inset-inline-end:22px;
  font-family:var(--font-display);font-weight:700;font-size:.8rem;color:var(--mute);opacity:.45}
.fcard .fic{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;margin-bottom:20px;
  background:var(--grad-soft);color:var(--blue)}
.fcard .fic svg{width:23px;height:23px}
.fcard h3{font-size:1.08rem;margin-bottom:9px;color:var(--ink);line-height:1.25}
.fcard p{color:var(--slate);font-size:.88rem;line-height:1.5}

/* ---------- Footer ---------- */
.site-footer{position:relative;overflow:hidden;color:#fff;padding-block:74px 30px;
  background:
    radial-gradient(120% 78% at 82% 0%,rgba(16,176,208,.09),transparent 55%),
    linear-gradient(180deg,#0a1640 0%,#070f28 60%,#060c20 100%)}
.site-footer::before{content:"";position:absolute;inset:0;opacity:.4;pointer-events:none;
  background-image:radial-gradient(rgba(125,190,235,.12) 1.1px,transparent 1.1px);background-size:32px 32px;
  -webkit-mask:radial-gradient(120% 95% at 80% 0,#000,transparent 70%);mask:radial-gradient(120% 95% at 80% 0,#000,transparent 70%)}
.site-footer::after{content:"";position:absolute;left:0;right:0;top:0;height:1px;pointer-events:none;
  background:linear-gradient(90deg,transparent,rgba(125,190,235,.4),transparent)}
.site-footer .wrap{position:relative;z-index:1}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:48px;padding-bottom:48px;
  border-bottom:1px solid rgba(255,255,255,.1)}
.footer-logo{display:inline-flex;align-items:center;gap:13px}
.footer-logo .brand-mark{width:40px;height:40px;flex:none}
.footer-brand .brand-word b{font-size:1.25rem;color:#fff;letter-spacing:.01em}
.footer-grad{font-weight:300;background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent}
.footer-blurb{color:rgba(220,232,255,.6);margin-top:18px;max-width:42ch;font-size:.95rem}
.footer-affil{display:inline-flex;align-items:center;gap:12px;margin-top:26px;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:100px;padding:8px 18px 8px 14px}
.footer-affil img{height:26px;width:auto;opacity:.95}
.footer-affil span{font-size:.8rem;color:rgba(220,232,255,.7)}
.fcol h4{font-family:var(--font-body);font-size:.8rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--cyan);margin-bottom:18px}
.fcol a{display:block;color:rgba(220,232,255,.72);padding:7px 0;font-size:.95rem;transition:color .25s,transform .25s var(--ease)}
.fcol a:hover{color:#fff;transform:translateX(4px)}
[dir="rtl"] .fcol a:hover{transform:translateX(-4px)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:26px;flex-wrap:wrap}
.social{display:flex;gap:10px}
.social a{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  background:rgba(255,255,255,.07);transition:.25s}
.social a:hover{background:var(--grad);transform:translateY(-2px)}
.social svg{width:17px;height:17px;color:#fff}
.copy{color:rgba(220,232,255,.5);font-size:.85rem}
.foot-lang{display:flex;gap:6px;align-items:center}
.foot-lang button{color:rgba(220,232,255,.55);font-size:.82rem;font-weight:600;padding:5px 10px;border-radius:8px;transition:.25s}
.foot-lang button.on{color:#fff;background:rgba(255,255,255,.1)}

/* sticky register CTA (appears later) */
.sticky-cta{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(160%);
  z-index:90;transition:transform .5s var(--ease)}
.sticky-cta.show{transform:translateX(-50%) translateY(0)}
.sticky-cta .btn{box-shadow:0 18px 40px -12px rgba(16,176,208,.7)}

/* ---------- responsive ---------- */
@media (max-width:960px){
  .hero .wrap{grid-template-columns:1fr}
  .hero-art{display:none}
  .about-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1/-1}
}
/* collapse the nav into the menu button before the header gets crowded */
@media (max-width:1120px){
  .nav{display:none}
  .burger{display:grid}
}
@media (max-width:620px){
  .header-cta{display:none}
}
@media (max-width:560px){
  .footer-top{grid-template-columns:1fr}
  .hero-stats .stat-pill{flex:1;min-width:calc(50% - 12px)}
}
@media (max-width:860px){
  .about-cards{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:480px){
  .about-cards{grid-template-columns:1fr}
}