/* ===== Bayyinah Health Research Advisory — site styles v2 ===== */
:root{
  --navy:#0d2440; --navy-2:#16395f; --teal:#1c8c8c; --teal-d:#14506b; --teal-l:#5fc8c8;
  --ink:#2b3440; --grey:#5a6472; --line:#e1e6ea;
  --ivory:#faf9f6; --mist:#eef6f5; --sand:#e9e2d3; --white:#fff;
  --maxw:1140px; --radius:16px; --shadow:0 10px 30px rgba(13,36,64,.08);
  --shadow-lg:0 22px 60px rgba(13,36,64,.16);
  --grad:linear-gradient(135deg,#0d2440 0%,#16395f 55%,#1c8c8c 140%);
  --grad-teal:linear-gradient(135deg,#1c8c8c,#14506b);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:'Inter',system-ui,Arial,sans-serif;color:var(--ink);
  background:var(--ivory);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:var(--teal-d);text-decoration:none}
a:hover{color:var(--teal)}
img,svg{max-width:100%}
h1,h2,h3,h4{color:var(--navy);line-height:1.18;margin:0 0 .5em}
h1{font-size:clamp(2.1rem,4.8vw,3.5rem);font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(1.6rem,3.2vw,2.4rem);font-weight:800;letter-spacing:-.01em}
h3{font-size:1.2rem;font-weight:700}
p{margin:0 0 1rem}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;position:relative}
.muted{color:var(--grey)}
.center{text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:.5em;font-size:.78rem;font-weight:700;
  letter-spacing:.12em;text-transform:uppercase;color:var(--teal);background:var(--mist);
  padding:.45em 1em;border-radius:99px;margin-bottom:1.1rem}
.eyebrow.light{background:rgba(255,255,255,.12);color:var(--teal-l)}

/* ===== Arabic / RTL ===== */
html[lang="ar"] body{font-family:'Tajawal','Inter',sans-serif}
html[lang="ar"] h1,html[lang="ar"] h2,html[lang="ar"] h3,html[lang="ar"] h4{font-family:'Tajawal',sans-serif;letter-spacing:0}
html[dir="rtl"] .step,html[dir="rtl"] .lesson,html[dir="rtl"] .adv .card{text-align:right}
html[dir="rtl"] .eyebrow{letter-spacing:0}
html[dir="rtl"] .lesson:hover{transform:translateX(-3px)}
html[dir="rtl"] .wm{right:auto;left:-60px}
.ar-only{display:none}
html[lang="ar"] .en-only{display:none}
html[lang="ar"] .ar-only{display:inline}

/* ===== buttons ===== */
.btn{display:inline-flex;align-items:center;gap:.55em;font-weight:700;font-size:1rem;
  padding:.9em 1.6em;border-radius:99px;border:2px solid transparent;cursor:pointer;
  transition:.18s ease;white-space:nowrap;font-family:inherit}
.btn svg{width:18px;height:18px}
.btn-primary{background:var(--teal);color:#fff;box-shadow:0 8px 20px rgba(28,140,140,.28)}
.btn-primary:hover{background:#157a7a;color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(28,140,140,.36)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:#0a1c34;color:#fff;transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--navy);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--teal);color:var(--teal-d);background:#fff}
.btn-white{background:#fff;color:var(--navy)}
.btn-white:hover{background:var(--ivory);transform:translateY(-2px)}

/* ===== header ===== */
header.site{position:sticky;top:0;z-index:60;background:rgba(250,249,246,.85);
  backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:76px;gap:1rem}
.nav .logo img{height:46px;display:block}
.nav nav{display:flex;align-items:center;gap:1.5rem}
.nav nav a.lnk{color:var(--navy);font-weight:600;font-size:.96rem;position:relative}
.nav nav a.lnk::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;
  background:var(--teal);transition:.2s}
.nav nav a.lnk:hover::after,.nav nav a.lnk.active::after{width:100%}
.nav nav a.lnk:hover,.nav nav a.lnk.active{color:var(--teal)}
.langtoggle{display:inline-flex;border:1.5px solid var(--line);border-radius:99px;overflow:hidden;font-weight:700;font-size:.82rem}
.langtoggle button{border:0;background:#fff;color:var(--grey);padding:.4em .8em;cursor:pointer;font-family:inherit}
.langtoggle button.on{background:var(--navy);color:#fff}
.menu-btn{display:none;background:none;border:0;cursor:pointer;padding:6px}
.menu-btn span{display:block;width:26px;height:2.6px;background:var(--navy);margin:5px 0;border-radius:2px;transition:.2s}

/* ===== hero ===== */
.hero{position:relative;overflow:hidden;padding:90px 0 80px;
  background:
    radial-gradient(900px 420px at 88% -8%,rgba(28,140,140,.14),transparent 60%),
    radial-gradient(700px 380px at 2% 110%,rgba(13,36,64,.07),transparent 60%)}
.hero .grid{display:grid;grid-template-columns:1.08fr .92fr;gap:50px;align-items:center}
.hero p.lead{font-size:1.2rem;color:var(--grey);max-width:34em}
.hero .actions{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1.7rem}
.blob{position:absolute;border-radius:50%;filter:blur(8px);opacity:.5;z-index:0}

/* hero illustration card */
.hero-art{position:relative}
.hero-art .floatcard{position:absolute;background:#fff;border:1px solid var(--line);
  border-radius:14px;box-shadow:var(--shadow-lg);padding:12px 16px;font-size:.85rem;font-weight:600;
  color:var(--navy);display:flex;align-items:center;gap:10px}
.float-1{top:6%;left:-4%;animation:float 6s ease-in-out infinite}
.float-2{bottom:10%;right:-6%;animation:float 7s ease-in-out infinite .6s}
.dotteal{width:12px;height:12px;border-radius:50%;background:var(--teal)}
.dotnavy{width:12px;height:12px;border-radius:50%;background:var(--navy)}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

/* stats band */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:8px}
.stat{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 16px;text-align:center;box-shadow:var(--shadow)}
.stat b{display:block;font-size:1.7rem;color:var(--navy);font-weight:800;line-height:1}
.stat span{font-size:.82rem;color:var(--grey)}

/* ===== sections ===== */
section{padding:78px 0;position:relative}
.section-head{max-width:44em;margin-bottom:2.6rem}
.bg-white{background:#fff}
.bg-mist{background:var(--mist)}
.bg-navy{background:var(--grad);color:#e9eef5;position:relative;overflow:hidden}
.bg-navy h2,.bg-navy h3{color:#fff}
.bg-navy .muted{color:#bcccdf}
/* wave divider */
.wave{display:block;width:100%;height:60px;margin-bottom:-7px}
.wave.flip{transform:rotate(180deg);margin-bottom:0;margin-top:-7px}

/* ===== cards ===== */
.cards{display:grid;gap:22px}
.cards.c3{grid-template-columns:repeat(3,1fr)}
.cards.c2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow);transition:.2s;position:relative;overflow:hidden}
.card::before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:var(--grad-teal);
  transform:scaleX(0);transform-origin:left;transition:.25s}
html[dir="rtl"] .card::before{transform-origin:right}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:#cfe3e2}
.card:hover::before{transform:scaleX(1)}
.card .ic{width:52px;height:52px;border-radius:14px;background:var(--mist);
  display:grid;place-items:center;margin-bottom:16px;color:var(--teal)}
.card .ic svg{width:26px;height:26px}
.card h3{margin-bottom:.4rem}
.card p{font-size:.96rem;color:var(--grey);margin:0}
.tag{display:inline-block;font-size:.72rem;font-weight:700;color:var(--teal-d);
  background:var(--mist);padding:.3em .8em;border-radius:99px;margin-bottom:12px}

.res{display:flex;flex-direction:column;height:100%}
.res .ic{margin-bottom:14px}
.res .meta{display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding-top:18px}
.res .fmt{font-size:.8rem;color:var(--grey);font-weight:600}
.res a{font-weight:700}

/* chips */
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{background:#fff;border:1px solid var(--line);border-radius:99px;
  padding:.55em 1.1em;font-size:.9rem;font-weight:600;color:var(--navy);transition:.18s}
.chip:hover{border-color:var(--teal);color:var(--teal-d);transform:translateY(-2px)}

/* lessons */
.lesson{display:flex;gap:18px;align-items:flex-start;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow);transition:.18s}
.lesson:hover{border-color:#cfe3e2;transform:translateX(4px)}
.lesson .num{flex:0 0 46px;height:46px;border-radius:13px;background:var(--navy);color:#fff;
  display:grid;place-items:center;font-weight:800}
.lesson.anchor .num{background:var(--grad-teal)}
.lesson h3{margin:0 0 .2rem;font-size:1.06rem}
.lesson p{margin:0;font-size:.92rem;color:var(--grey)}

/* advisory */
.adv{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.adv .card{display:flex;gap:16px;align-items:flex-start}
.adv .num{flex:0 0 42px;height:42px;border-radius:12px;background:var(--mist);color:var(--teal-d);
  display:grid;place-items:center;font-weight:800;font-size:1.05rem}

/* steps pathway */
.pathway{display:flex;flex-direction:column;gap:8px}
.step{display:flex;gap:16px;align-items:flex-start;padding:12px;border-radius:12px;transition:.18s}
.step:hover{background:var(--mist)}
.step .n{flex:0 0 36px;height:36px;border-radius:50%;background:var(--grad-teal);color:#fff;
  display:grid;place-items:center;font-weight:700;font-size:.92rem}
.step b{color:var(--navy)}
.step small{color:var(--grey)}

/* CTA band */
.band{background:var(--grad);color:#fff;border-radius:26px;padding:52px;display:flex;
  align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;position:relative;overflow:hidden}
.band::after{content:"";position:absolute;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(95,200,200,.3),transparent 70%);right:-60px;top:-80px}
html[dir="rtl"] .band::after{right:auto;left:-60px}
.band h2{color:#fff;margin:0}
.band p{color:#c9d6e6;margin:.5rem 0 0;position:relative}
.band .btn{position:relative}

/* form */
.form-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:32px;box-shadow:var(--shadow-lg)}
.field{margin-bottom:16px}
label{display:block;font-weight:600;color:var(--navy);margin-bottom:6px;font-size:.92rem}
input,select,textarea{width:100%;padding:.85em .95em;border:1.5px solid var(--line);
  border-radius:11px;font:inherit;color:var(--ink);background:#fff;transition:.15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(28,140,140,.14)}
.check{display:flex;gap:10px;align-items:flex-start;font-size:.9rem;color:var(--grey)}
.check input{width:auto;margin-top:4px}
.note{font-size:.82rem;color:var(--grey)}
.spinner{display:none;width:18px;height:18px;border:2.5px solid rgba(255,255,255,.5);
  border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.msg{display:none;margin-top:16px;padding:14px 16px;border-radius:12px;font-size:.92rem}
.msg.ok{display:block;background:var(--mist);color:var(--teal-d);border:1px solid #bfe3e0}
.msg.err{display:block;background:#fdeeea;color:#b5462f;border:1px solid #f3c9bd}

/* footer */
footer.site{background:var(--navy);color:#aebdcf;padding:60px 0 28px;position:relative;overflow:hidden}
footer.site .cols{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:30px;position:relative}
footer.site h4{color:#fff;font-size:.95rem;letter-spacing:.04em;text-transform:uppercase;margin-bottom:1rem}
footer.site a{display:block;color:#aebdcf;margin-bottom:.55rem;font-size:.94rem}
footer.site a:hover{color:#fff}
footer.site .brandcol img{height:44px;margin-bottom:14px}
footer.site .ar{color:#8aa0b8;font-size:.95rem;margin-top:.3rem;font-family:'Tajawal',sans-serif}
.social{display:flex;gap:10px;margin-top:6px}
.social a{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;
  background:#16395f;margin:0;transition:.18s}
.social a:hover{background:var(--teal);transform:translateY(-2px)}
.social svg{width:18px;height:18px;fill:#fff}
.foot-bottom{border-top:1px solid #20385a;margin-top:38px;padding-top:20px;display:flex;
  justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.85rem;color:#7e90a8}

/* watermark accent */
.wm{position:absolute;right:-60px;top:50%;transform:translateY(-50%);width:520px;opacity:.05;pointer-events:none;z-index:0}

/* scroll reveal */
.reveal{opacity:0;transform:translateY(22px);transition:.7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* responsive */
@media(max-width:980px){
  .hero .grid{grid-template-columns:1fr;gap:40px}
  .cards.c3{grid-template-columns:1fr 1fr}
  .adv{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  footer.site .cols{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  .nav nav{position:fixed;inset:76px 0 auto 0;background:var(--ivory);flex-direction:column;
    align-items:flex-start;padding:18px 24px;gap:1.1rem;border-bottom:1px solid var(--line);
    transform:translateY(-140%);transition:.28s;box-shadow:var(--shadow);height:auto}
  .nav nav.open{transform:translateY(0)}
  .menu-btn{display:block}
  .cards.c3,.cards.c2{grid-template-columns:1fr}
  .band{padding:34px;text-align:center;justify-content:center}
  footer.site .cols{grid-template-columns:1fr}
  section{padding:56px 0}
}