/* ===========================================================
   DATA Alliance — Website Stylesheet
   Data · Analyses · Training · Assessment
   =========================================================== */

:root{
  --ink:#1c1850;
  --purple:#3a2e9b;
  --purple-d:#2a2378;
  --peri:#6c63ff;
  --peri-l:#8b84ff;
  --teal:#2fc4bb;
  --teal-d:#23a79f;
  --lav:#f5f4fb;
  --lav2:#ecebf8;
  --text:#3b3b4d;
  --muted:#74748a;
  --line:#e4e2f1;
  --white:#ffffff;
  --shadow:0 18px 50px -22px rgba(40,30,120,.35);
  --shadow-sm:0 8px 24px -14px rgba(40,30,120,.30);
  --radius:18px;
  --radius-sm:12px;
  --maxw:1180px;
  --gradient:linear-gradient(150deg,#2a2378 0%,#3a2e9b 48%,#5b4fd6 100%);
}

*{ margin:0; padding:0; box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  font-family:'Poppins',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  color:var(--text); line-height:1.65; font-size:16px;
  background:var(--white); overflow-x:hidden;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; }

/* ---------- layout helpers ---------- */
.container{ width:100%; max-width:var(--maxw); margin:0 auto; padding:0 24px; }
.section{ padding:96px 0; }
.section.tight{ padding:64px 0; }
.bg-lav{ background:var(--lav); }
.center{ text-align:center; }
.eyebrow{
  display:inline-block; font-size:12px; font-weight:600; letter-spacing:3px;
  text-transform:uppercase; color:var(--peri); margin-bottom:14px;
}
.eyebrow.on-dark{ color:var(--teal); }
.section-title{
  font-size:clamp(28px,4vw,42px); font-weight:700; color:var(--ink);
  line-height:1.12; letter-spacing:-.5px;
}
.section-title .accent{ color:var(--peri); }
.section-lead{ font-size:17px; color:var(--muted); max-width:680px; margin-top:16px; }
.center .section-lead{ margin-left:auto; margin-right:auto; }
.title-rule{ width:60px; height:5px; border-radius:5px; background:var(--teal); margin-top:22px; }
.center .title-rule{ margin-left:auto; margin-right:auto; }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:9px; font-weight:600; font-size:15px;
  padding:14px 26px; border-radius:40px; border:2px solid transparent;
  cursor:pointer; transition:.25s ease; white-space:nowrap;
}
.btn-primary{ background:var(--teal); color:#08312e; }
.btn-primary:hover{ background:var(--teal-d); transform:translateY(-2px); box-shadow:0 12px 26px -12px rgba(47,196,187,.7); }
.btn-light{ background:#fff; color:var(--purple); }
.btn-light:hover{ transform:translateY(-2px); box-shadow:var(--shadow-sm); }
.btn-outline{ border-color:rgba(255,255,255,.55); color:#fff; }
.btn-outline:hover{ background:rgba(255,255,255,.12); }
.btn-ghost{ border-color:var(--line); color:var(--purple); background:#fff; }
.btn-ghost:hover{ border-color:var(--peri); color:var(--peri); }
.btn .arr{ transition:transform .25s; }
.btn:hover .arr{ transform:translateX(4px); }

/* ---------- header / nav ---------- */
.site-header{
  position:fixed; top:0; left:0; right:0; z-index:100;
  transition:.3s ease; padding:18px 0;
}
.site-header .nav{ display:flex; align-items:center; justify-content:space-between; }
.brand{ display:flex; align-items:center; gap:10px; }
.brand img{ height:38px; }
.brand .brand-fallback{ font-weight:700; color:#fff; font-size:20px; letter-spacing:.5px; }
.nav-links{ display:flex; align-items:center; gap:6px; }
.nav-links a{
  font-size:15px; font-weight:500; color:rgba(255,255,255,.92); padding:9px 15px;
  border-radius:30px; transition:.2s;
}
.nav-links a:hover{ color:#fff; background:rgba(255,255,255,.12); }
.nav-links a.active{ color:#fff; background:rgba(255,255,255,.16); }
.nav-cta{ margin-left:10px; }
.nav-toggle{ display:none; background:none; border:0; cursor:pointer; padding:8px; }
.nav-toggle span{ display:block; width:26px; height:3px; background:#fff; border-radius:3px; margin:5px 0; transition:.3s; }

/* scrolled state (solid) */
.site-header.scrolled{ background:#fff; box-shadow:0 6px 30px -18px rgba(40,30,120,.5); padding:12px 0; }
.site-header.scrolled .nav-links a{ color:var(--text); }
.site-header.scrolled .nav-links a:hover{ background:var(--lav); color:var(--purple); }
.site-header.scrolled .nav-links a.active{ background:var(--lav2); color:var(--purple); }
.site-header.scrolled .nav-toggle span{ background:var(--purple); }
.site-header.scrolled .brand .brand-fallback{ color:var(--purple); }
.logo-white{ display:block; }
.logo-color{ display:none; }
.site-header.scrolled .logo-white{ display:none; }
.site-header.scrolled .logo-color{ display:block; }

/* ---------- hero (home) ---------- */
.hero{
  position:relative; background:var(--gradient); color:#fff; overflow:hidden;
  padding:170px 0 110px;
}
.hero::before{
  content:""; position:absolute; inset:0; opacity:.12;
  background-image:radial-gradient(circle,#fff 1.5px,transparent 1.6px);
  background-size:30px 30px;
}
.hero .glow{
  position:absolute; width:520px; height:520px; right:-120px; top:-80px; border-radius:50%;
  background:radial-gradient(circle,rgba(47,196,187,.35),transparent 68%); pointer-events:none;
}
.hero .container{ position:relative; z-index:2; display:grid; grid-template-columns:1.1fr .9fr; gap:50px; align-items:center; }
.hero h1{ font-size:clamp(34px,5vw,56px); font-weight:700; line-height:1.05; letter-spacing:-1px; }
.hero h1 span{ color:#cdc7ff; }
.hero p.sub{ font-size:18px; color:#e7e4ff; margin:22px 0 14px; max-width:540px; }
.hero .acro{ font-size:14px; letter-spacing:1px; color:#cdc7ff; margin-bottom:30px; }
.hero .acro b{ color:#fff; }
.hero .cta-row{ display:flex; gap:14px; flex-wrap:wrap; }
.hero-collage{ position:relative; height:430px; }
.hero-collage img{
  position:absolute; border-radius:16px; object-fit:cover; border:5px solid rgba(255,255,255,.16);
  box-shadow:0 30px 60px -25px rgba(0,0,0,.55);
}
.hero-collage .p1{ width:62%; height:64%; top:0; right:0; }
.hero-collage .p2{ width:52%; height:50%; bottom:0; left:0; }
.hero-collage .p3{ width:34%; height:34%; bottom:14%; right:12%; z-index:3; }
.hero-wave{ position:absolute; bottom:-1px; left:0; width:100%; line-height:0; z-index:1; }

/* ---------- stats band ---------- */
.stats-band{ background:#fff; }
.stats-grid{ display:grid; grid-template-columns:repeat(6,1fr); gap:18px; }
.stat{ text-align:center; padding:26px 14px; border-radius:var(--radius-sm); background:var(--lav); border:1px solid var(--line); }
.stat .num{ font-size:38px; font-weight:700; color:var(--purple); line-height:1; }
.stat .num .suf{ color:var(--teal); }
.stat .lbl{ font-size:12.5px; color:var(--muted); margin-top:8px; line-height:1.35; }

/* ---------- acronym strip ---------- */
.acronym{ display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
.acronym .a{ background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:30px 24px; text-align:center; transition:.25s; }
.acronym .a:hover{ transform:translateY(-6px); box-shadow:var(--shadow-sm); }
.acronym .a .big{ font-size:46px; font-weight:700; color:var(--peri); line-height:1; }
.acronym .a h4{ font-size:18px; color:var(--ink); margin:10px 0 6px; }
.acronym .a p{ font-size:13.5px; color:var(--muted); }

/* ---------- generic card grids ---------- */
.grid{ display:grid; gap:26px; }
.grid-2{ grid-template-columns:repeat(2,1fr); }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-4{ grid-template-columns:repeat(4,1fr); }

.card{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius);
  padding:32px 28px; transition:.25s; height:100%;
}
.card:hover{ transform:translateY(-6px); box-shadow:var(--shadow); border-color:transparent; }
.card .ic{
  width:54px; height:54px; border-radius:14px; display:flex; align-items:center; justify-content:center;
  background:linear-gradient(150deg,var(--purple),var(--peri)); color:#fff; font-weight:700; font-size:20px; margin-bottom:18px;
}
.card h3{ font-size:19px; color:var(--ink); margin-bottom:10px; }
.card p{ font-size:14.5px; color:var(--muted); }
.card .tagnum{ font-size:13px; font-weight:700; letter-spacing:2px; color:var(--peri-l); margin-bottom:6px; }

/* focus list (services) */
.focus-card{ display:flex; gap:18px; align-items:flex-start; }
.focus-card .n{
  flex:none; width:46px; height:46px; border-radius:12px; background:var(--lav2); color:var(--purple);
  display:flex; align-items:center; justify-content:center; font-weight:700;
}

/* benefits */
.benefit{ display:flex; gap:20px; align-items:flex-start; background:#fff; border:1px solid var(--line); border-left:5px solid var(--peri); border-radius:var(--radius-sm); padding:24px 26px; transition:.25s; }
.benefit:hover{ box-shadow:var(--shadow-sm); transform:translateX(4px); }
.benefit:nth-child(2){ border-left-color:var(--teal); }
.benefit:nth-child(3){ border-left-color:var(--peri-l); }
.benefit:nth-child(4){ border-left-color:var(--purple); }
.benefit h3{ font-size:17px; color:var(--ink); margin-bottom:6px; }
.benefit p{ font-size:14.5px; color:var(--muted); }

/* experience */
.exp-card h3{ display:flex; align-items:center; gap:12px; font-size:17px; color:var(--ink); margin-bottom:14px; }
.exp-card h3 .n{ flex:none; width:34px; height:34px; border-radius:9px; background:linear-gradient(150deg,var(--purple),var(--peri)); color:#fff; display:flex; align-items:center; justify-content:center; font-size:14px; font-weight:700; }
.exp-card ul li{ position:relative; padding-left:20px; font-size:14px; color:var(--muted); margin-bottom:9px; }
.exp-card ul li::before{ content:""; position:absolute; left:0; top:9px; width:8px; height:8px; border-radius:50%; background:var(--teal); }

/* ---------- vision / mission band ---------- */
.vm-band{ background:var(--gradient); color:#fff; position:relative; overflow:hidden; }
.vm-band::before{ content:""; position:absolute; inset:0; opacity:.1; background-image:radial-gradient(circle,#fff 1.4px,transparent 1.6px); background-size:30px 30px; }
.vm-grid{ position:relative; display:grid; grid-template-columns:1fr 1fr; gap:30px; }
.vm-box{ background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.2); border-radius:var(--radius); padding:38px 34px; }
.vm-box .vm-ic{ font-size:13px; letter-spacing:3px; text-transform:uppercase; color:var(--teal); font-weight:600; margin-bottom:12px; }
.vm-box h3{ font-size:26px; margin-bottom:14px; }
.vm-box p{ color:#e7e4ff; font-size:15.5px; }

/* ---------- featured / activity cards ---------- */
.activity{ background:#fff; border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; transition:.25s; height:100%; display:flex; flex-direction:column; }
.activity:hover{ transform:translateY(-6px); box-shadow:var(--shadow); border-color:transparent; }
.activity .ph{ height:210px; overflow:hidden; background:var(--lav2); }
.activity .ph img{ width:100%; height:210px; object-fit:cover; transition:.4s; }
.activity:hover .ph img{ transform:scale(1.06); }
.activity .body{ padding:24px 24px 26px; flex:1; display:flex; flex-direction:column; }
.activity .meta{ display:flex; flex-wrap:wrap; gap:8px; margin-bottom:12px; }
.activity .meta span{ font-size:11.5px; font-weight:500; padding:4px 11px; border-radius:20px; background:var(--lav); color:var(--purple); border:1px solid var(--line); }
.activity .meta span.tag{ background:var(--purple); color:#fff; border-color:var(--purple); }
.activity h3{ font-size:18px; color:var(--ink); margin-bottom:10px; line-height:1.25; }
.activity p{ font-size:14px; color:var(--muted); }

/* full activity (activities page) */
.activity-full{ display:grid; grid-template-columns:1fr 1fr; gap:36px; align-items:center; background:#fff; border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; }
.activity-full .gallery{ display:grid; grid-template-columns:1fr 1fr; grid-auto-rows:140px; gap:10px; padding:18px; }
.activity-full .gallery img{ width:100%; height:100%; object-fit:cover; border-radius:10px; }
.activity-full .gallery .span2{ grid-column:span 2; grid-row:span 1; }
.activity-full .info{ padding:34px 40px 34px 6px; }
.activity-full.rev{ direction:rtl; }
.activity-full.rev > *{ direction:ltr; }
.activity-full .meta{ display:flex; flex-wrap:wrap; gap:8px; margin:12px 0 16px; }
.activity-full .meta span{ font-size:12px; padding:5px 12px; border-radius:20px; background:var(--lav); color:var(--purple); border:1px solid var(--line); }
.activity-full .meta span.tag{ background:var(--purple); color:#fff; border-color:var(--purple); }
.activity-full h3{ font-size:23px; color:var(--ink); line-height:1.2; }
.activity-full p{ font-size:14.5px; color:var(--muted); margin-top:6px; }

/* ---------- chips / footprint ---------- */
.chips{ display:flex; flex-wrap:wrap; gap:10px; justify-content:center; }
.chips span{ font-size:14px; padding:9px 18px; border-radius:30px; background:#fff; border:1px solid var(--line); color:var(--purple); font-weight:500; }
.chips.on-dark span{ background:rgba(255,255,255,.1); border-color:rgba(255,255,255,.25); color:#fff; }

/* working groups list */
.wg-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:14px; }
.wg{ display:flex; gap:14px; align-items:flex-start; background:#fff; border:1px solid var(--line); border-radius:var(--radius-sm); padding:18px 20px; }
.wg .dot{ flex:none; width:10px; height:10px; border-radius:50%; background:var(--teal); margin-top:7px; }
.wg h4{ font-size:15px; color:var(--ink); }
.wg p{ font-size:13px; color:var(--muted); }

/* ---------- page hero (interior banners) ---------- */
.page-hero{ background:var(--gradient); color:#fff; position:relative; overflow:hidden; padding:160px 0 80px; text-align:center; }
.page-hero::before{ content:""; position:absolute; inset:0; opacity:.1; background-image:radial-gradient(circle,#fff 1.4px,transparent 1.6px); background-size:30px 30px; }
.page-hero .container{ position:relative; z-index:2; }
.page-hero h1{ font-size:clamp(32px,5vw,50px); font-weight:700; letter-spacing:-.5px; }
.page-hero p{ color:#e7e4ff; font-size:17px; max-width:640px; margin:16px auto 0; }
.crumb{ font-size:13px; color:#cdc7ff; margin-bottom:14px; letter-spacing:1px; }
.crumb a:hover{ color:#fff; }

/* ---------- CTA band ---------- */
.cta{ background:var(--gradient); color:#fff; text-align:center; position:relative; overflow:hidden; }
.cta::before{ content:""; position:absolute; inset:0; opacity:.1; background-image:radial-gradient(circle,#fff 1.4px,transparent 1.6px); background-size:30px 30px; }
.cta .container{ position:relative; z-index:2; }
.cta h2{ font-size:clamp(26px,4vw,38px); font-weight:700; }
.cta p{ color:#e7e4ff; max-width:560px; margin:14px auto 28px; }
.cta .cta-row{ display:flex; gap:14px; justify-content:center; flex-wrap:wrap; }

/* ---------- contact ---------- */
.office-card{ background:#fff; border:1px solid var(--line); border-radius:var(--radius); padding:30px 28px; transition:.25s; }
.office-card:hover{ transform:translateY(-6px); box-shadow:var(--shadow); }
.office-card .pin{ width:48px; height:48px; border-radius:12px; background:var(--lav2); display:flex; align-items:center; justify-content:center; margin-bottom:16px; }
.office-card .pin svg{ width:24px; height:24px; fill:var(--purple); }
.office-card h3{ font-size:19px; color:var(--ink); margin-bottom:8px; }
.office-card address{ font-style:normal; font-size:14.5px; color:var(--muted); line-height:1.6; }
.office-card .tel{ display:inline-block; margin-top:12px; font-weight:600; color:var(--purple); }
.contact-wrap{ display:grid; grid-template-columns:1fr 1fr; gap:40px; align-items:start; }
.form-field{ margin-bottom:18px; }
.form-field label{ display:block; font-size:13px; font-weight:600; color:var(--ink); margin-bottom:7px; }
.form-field input, .form-field textarea{
  width:100%; padding:14px 16px; border:1px solid var(--line); border-radius:12px;
  font-family:inherit; font-size:15px; color:var(--text); background:var(--lav); transition:.2s;
}
.form-field input:focus, .form-field textarea:focus{ outline:none; border-color:var(--peri); background:#fff; box-shadow:0 0 0 3px rgba(108,99,255,.12); }
.form-field textarea{ resize:vertical; min-height:130px; }
.form-note{ font-size:13px; margin-top:10px; }
.form-note.ok{ color:var(--teal-d); }

/* contact details list */
.contact-detail{ display:flex; gap:14px; align-items:center; padding:14px 0; border-bottom:1px solid var(--line); }
.contact-detail:last-child{ border-bottom:0; }
.contact-detail .ic{ width:42px; height:42px; border-radius:11px; background:var(--lav2); display:flex; align-items:center; justify-content:center; flex:none; }
.contact-detail .ic svg{ width:20px; height:20px; fill:var(--purple); }
.contact-detail b{ display:block; color:var(--ink); font-size:14px; }
.contact-detail span{ color:var(--muted); font-size:14px; }

/* ---------- footer ---------- */
.site-footer{ background:var(--ink); color:#c9c6e8; padding:70px 0 0; }
.footer-grid{ display:grid; grid-template-columns:1.6fr 1fr 1fr 1.4fr; gap:40px; padding-bottom:50px; }
.site-footer .f-brand img{ height:40px; margin-bottom:18px; }
.site-footer .f-brand p{ font-size:14px; max-width:280px; }
.site-footer .f-acro{ margin-top:18px; font-size:13px; letter-spacing:1px; }
.site-footer .f-acro b{ color:#fff; }
.site-footer h4{ color:#fff; font-size:15px; margin-bottom:18px; letter-spacing:.5px; }
.site-footer ul li{ margin-bottom:11px; }
.site-footer ul li a{ font-size:14px; color:#b6b2dc; transition:.2s; }
.site-footer ul li a:hover{ color:var(--teal); padding-left:4px; }
.f-offices p{ font-size:13.5px; margin-bottom:14px; line-height:1.55; }
.f-offices p b{ color:#fff; display:block; font-size:13px; margin-bottom:2px; }
.footer-bottom{ border-top:1px solid rgba(255,255,255,.1); padding:22px 0; display:flex; justify-content:space-between; align-items:center; gap:14px; flex-wrap:wrap; }
.footer-bottom p{ font-size:13px; color:#9b97c7; }
.socials{ display:flex; gap:10px; }
.socials a{ width:38px; height:38px; border-radius:10px; background:rgba(255,255,255,.08); display:flex; align-items:center; justify-content:center; transition:.2s; }
.socials a:hover{ background:var(--teal); }
.socials svg{ width:17px; height:17px; fill:#fff; }

/* ---------- scroll reveal (progressive enhancement) ---------- */
.js .reveal{ opacity:0; transform:translateY(28px); transition:opacity .7s ease, transform .7s ease; }
.js .reveal.in{ opacity:1; transform:none; }
.js .reveal.d1{ transition-delay:.08s; }
.js .reveal.d2{ transition-delay:.16s; }
.js .reveal.d3{ transition-delay:.24s; }
.js .reveal.d4{ transition-delay:.32s; }

/* ---------- responsive ---------- */
@media (max-width:980px){
  .hero .container{ grid-template-columns:1fr; }
  .hero-collage{ display:none; }
  .stats-grid{ grid-template-columns:repeat(3,1fr); }
  .grid-4{ grid-template-columns:repeat(2,1fr); }
  .acronym{ grid-template-columns:repeat(2,1fr); }
  .activity-full{ grid-template-columns:1fr; }
  .activity-full.rev{ direction:ltr; }
  .activity-full .info{ padding:10px 30px 34px; }
  .contact-wrap{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr 1fr; gap:34px; }
}
@media (max-width:760px){
  .section{ padding:64px 0; }
  .nav-links{
    position:fixed; top:0; right:-100%; height:100vh; width:280px; background:#fff;
    flex-direction:column; align-items:flex-start; padding:90px 26px 30px; gap:6px;
    box-shadow:-12px 0 40px -20px rgba(0,0,0,.4); transition:right .35s ease; z-index:120;
  }
  .nav-links.open{ right:0; }
  .nav-links a{ color:var(--text); width:100%; }
  .nav-links a:hover, .nav-links a.active{ background:var(--lav); color:var(--purple); }
  .nav-links .nav-cta{ margin:10px 0 0; }
  .nav-toggle{ display:block; z-index:130; }
  .nav-toggle.active span:nth-child(1){ transform:translateY(8px) rotate(45deg); }
  .nav-toggle.active span:nth-child(2){ opacity:0; }
  .nav-toggle.active span:nth-child(3){ transform:translateY(-8px) rotate(-45deg); }
  .nav-backdrop{ position:fixed; inset:0; background:rgba(20,16,60,.5); opacity:0; visibility:hidden; transition:.3s; z-index:110; }
  .nav-backdrop.show{ opacity:1; visibility:visible; }
}
@media (max-width:560px){
  .grid-2, .grid-3, .grid-4{ grid-template-columns:1fr; }
  .stats-grid{ grid-template-columns:repeat(2,1fr); }
  .acronym{ grid-template-columns:repeat(2,1fr); }
  .vm-grid{ grid-template-columns:1fr; }
  .wg-grid{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr; }
  .hero{ padding:140px 0 80px; }
}