/* ==========================================================
   Promitheia Technologies — shared stylesheet
   ========================================================== */

:root{
  --navy:#0b2a4a;
  --navy-2:#113a66;
  --navy-3:#1b4a82;
  --accent:#ff6a3d;
  --accent-dark:#e85a2f;
  --accent-2:#ffb199;
  --sand:#f5f1ea;
  --ink:#121826;
  --muted:#5c6577;
  --line:#e6e8ee;
  --white:#ffffff;
  --shadow-sm:0 4px 12px rgba(11,42,74,.06);
  --shadow-md:0 8px 24px rgba(11,42,74,.10);
  --shadow-lg:0 18px 40px rgba(11,42,74,.14);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter','Helvetica Neue',Arial,sans-serif;
  color:var(--ink);
  line-height:1.6;
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.narrow{max-width:880px;margin:0 auto;padding:0 24px}

/* ===== Header ===== */
header.site{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,0.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;padding:18px 0}
.logo{
  display:flex;align-items:center;gap:10px;font-weight:800;
  font-size:20px;letter-spacing:.2px;color:var(--navy);
}
.logo .mark{
  width:34px;height:34px;border-radius:8px;
  background:linear-gradient(135deg,var(--navy) 0%,var(--accent) 100%);
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;
}
.logo .accent{color:var(--accent)}
nav.primary ul{list-style:none;display:flex;gap:28px}
nav.primary a{font-weight:500;color:var(--ink);font-size:15px;transition:color .2s;padding:6px 0;position:relative}
nav.primary a:hover{color:var(--accent)}
nav.primary a.active{color:var(--accent)}
nav.primary a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-22px;height:2px;background:var(--accent);
}
.cta-btn{
  background:var(--accent);color:#fff;padding:10px 20px;border-radius:999px;
  font-weight:600;font-size:14px;transition:transform .2s,background .2s;
}
.cta-btn:hover{background:var(--accent-dark);transform:translateY(-1px)}
.burger{display:none;font-size:24px;background:none;border:none;cursor:pointer;color:var(--navy)}

/* ===== Page Hero (subpages) ===== */
.page-hero{
  background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 60%,var(--navy-3) 100%);
  color:#fff;padding:84px 0 92px;position:relative;overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 12% 20%, rgba(255,106,61,.22), transparent 42%),
    radial-gradient(circle at 88% 85%, rgba(255,255,255,.07), transparent 50%);
  pointer-events:none;
}
.page-hero .wrap{position:relative;z-index:1}
.crumbs{font-size:13px;color:#a9b6cc;margin-bottom:14px;letter-spacing:.5px}
.crumbs a{color:#a9b6cc}
.crumbs a:hover{color:var(--accent)}
.page-hero h1{
  font-size:clamp(34px,4.5vw,52px);font-weight:800;line-height:1.1;
  margin-bottom:18px;letter-spacing:-.4px;max-width:880px;
}
.page-hero p.lead{
  font-size:clamp(16px,1.5vw,19px);max-width:720px;color:#d9e1ed;
}

/* ===== Big Hero (home only) ===== */
.hero{
  position:relative;
  background:linear-gradient(135deg,var(--navy) 0%,var(--navy-2) 60%,var(--navy-3) 100%);
  color:#fff;padding:104px 0 128px;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 15% 20%, rgba(255,106,61,.25), transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(255,255,255,.08), transparent 50%);
  pointer-events:none;
}
.hero .wrap{position:relative;z-index:1}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:2px;text-transform:uppercase;
  color:var(--accent-2);margin-bottom:18px;font-weight:600;
}
.hero h1{
  font-size:clamp(36px,5vw,60px);line-height:1.08;font-weight:800;
  margin-bottom:22px;max-width:920px;letter-spacing:-.5px;
}
.hero h1 span{color:var(--accent)}
.hero p.lead{font-size:clamp(17px,1.6vw,20px);max-width:680px;color:#d9e1ed;margin-bottom:34px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}

.btn-primary,.btn-ghost,.btn-dark{
  display:inline-flex;align-items:center;gap:8px;padding:14px 26px;
  border-radius:999px;font-weight:600;font-size:15px;transition:all .2s;border:0;cursor:pointer;
}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px)}
.btn-ghost{border:1.5px solid rgba(255,255,255,.3);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff}
.btn-dark{background:var(--navy);color:#fff}
.btn-dark:hover{background:var(--navy-2);transform:translateY(-2px)}

.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:72px;
  padding-top:40px;border-top:1px solid rgba(255,255,255,.15);
}
.stat .num{font-size:36px;font-weight:800;color:#fff}
.stat .lbl{font-size:13px;color:#a9b6cc;letter-spacing:.5px;text-transform:uppercase}

/* ===== Sections common ===== */
section{padding:88px 0}
.section-head{max-width:760px;margin:0 auto 56px;text-align:center}
.section-head.left{margin-left:0;text-align:left}
.kicker{
  color:var(--accent);font-weight:700;font-size:13px;letter-spacing:2px;
  text-transform:uppercase;margin-bottom:14px;
}
h2{
  font-size:clamp(28px,3.5vw,40px);color:var(--navy);font-weight:800;
  margin-bottom:18px;letter-spacing:-.3px;line-height:1.15;
}
h3{font-size:22px;color:var(--navy);margin-bottom:10px;font-weight:700;line-height:1.3}
.sub{color:var(--muted);font-size:17px}
.prose p{color:var(--muted);margin-bottom:16px;font-size:16px}
.prose h3{margin-top:28px}
.prose ul{margin:0 0 18px 22px;color:var(--muted)}
.prose ul li{margin-bottom:6px}

.bg-sand{background:var(--sand)}
.bg-navy{background:var(--navy);color:#fff}
.bg-navy h2{color:#fff}
.bg-navy .sub{color:#b8c4d8}

/* ===== Services grid ===== */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.service{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:32px;
  transition:transform .25s,box-shadow .25s,border-color .25s;
  position:relative;overflow:hidden;display:flex;flex-direction:column;
}
.service::before{
  content:"";position:absolute;top:0;left:0;height:4px;width:0;
  background:linear-gradient(90deg,var(--accent),var(--navy));transition:width .3s;
}
.service:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.service:hover::before{width:100%}
.service .num{font-size:13px;color:var(--accent);font-weight:700;letter-spacing:1px;margin-bottom:14px}
.service p{color:var(--muted);font-size:15px;margin-bottom:18px;flex-grow:1}
.service ul{list-style:none;margin-bottom:20px}
.service ul li{font-size:14px;color:var(--ink);padding:5px 0 5px 22px;position:relative}
.service ul li::before{content:"";position:absolute;left:0;top:13px;width:10px;height:2px;background:var(--accent)}
.service .learn{
  color:var(--navy);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px;
  border-bottom:1.5px solid var(--accent);padding-bottom:2px;align-self:flex-start;
}
.service .learn:hover{color:var(--accent)}

/* ===== Tech chips ===== */
.tech-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.chip{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);
  padding:16px 12px;border-radius:10px;text-align:center;font-weight:600;font-size:14px;
  transition:all .2s;color:#fff;
}
.chip:hover{background:var(--accent);border-color:var(--accent);transform:translateY(-2px)}

/* ===== Approach steps ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{padding:28px;border-radius:14px;background:var(--sand);border:1px solid transparent;transition:all .2s}
.step:hover{background:#fff;border-color:var(--line);box-shadow:var(--shadow-sm)}
.step .n{font-size:38px;font-weight:800;color:var(--accent);line-height:1;margin-bottom:14px}
.step h4{font-size:18px;color:var(--navy);margin-bottom:8px}
.step p{font-size:14px;color:var(--muted)}

/* ===== Why cards ===== */
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.why-card{background:#fff;padding:32px;border-radius:14px;border:1px solid var(--line)}
.why-card .ic{
  width:48px;height:48px;border-radius:12px;background:linear-gradient(135deg,var(--accent),#ff8d6b);
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px;font-weight:800;
}
.why-card h4{font-size:18px;color:var(--navy);margin-bottom:8px}
.why-card p{color:var(--muted);font-size:15px}

/* ===== Pillars ===== */
.pillars-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:64px;align-items:center}
.pillars-grid h2{margin-bottom:20px}
.pillars-grid .copy p{color:var(--muted);font-size:17px;margin-bottom:16px}
.pillars{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:20px}
.pillar{background:#fff;padding:22px;border-radius:14px;border:1px solid var(--line)}
.pillar .ic{
  width:40px;height:40px;border-radius:10px;background:var(--navy);
  color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:12px;
}
.pillar h4{font-size:16px;margin-bottom:6px;color:var(--navy)}
.pillar p{font-size:14px;color:var(--muted);margin:0}

/* ===== CTA band ===== */
.cta-band{
  background:linear-gradient(135deg,var(--accent) 0%,var(--accent-dark) 100%);
  color:#fff;padding:80px 0;text-align:center;
}
.cta-band h2{color:#fff;margin-bottom:16px}
.cta-band p{color:rgba(255,255,255,.92);margin-bottom:28px;font-size:17px}
.cta-band .btn-primary{background:#fff;color:var(--navy)}
.cta-band .btn-primary:hover{background:var(--navy);color:#fff}

/* ===== Contact form ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.contact-info h3{color:var(--navy);margin-bottom:16px}
.contact-info p{color:var(--muted);margin-bottom:22px}
.contact-info .info-item{
  display:flex;gap:14px;align-items:flex-start;padding:16px 0;border-top:1px solid var(--line);
}
.contact-info .info-item:last-child{border-bottom:1px solid var(--line)}
.contact-info .info-item .ic{
  width:38px;height:38px;border-radius:10px;background:var(--sand);color:var(--navy);
  display:flex;align-items:center;justify-content:center;font-weight:800;flex-shrink:0;
}
.contact-info .info-item div h5{color:var(--navy);font-size:15px;margin-bottom:2px}
.contact-info .info-item div span{color:var(--muted);font-size:14px}

form.contact{
  background:var(--sand);padding:36px;border-radius:16px;border:1px solid var(--line);
}
form.contact .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
form.contact label{display:block;font-size:13px;font-weight:600;color:var(--navy);margin-bottom:6px;letter-spacing:.3px}
form.contact input,form.contact select,form.contact textarea{
  width:100%;padding:12px 14px;border-radius:10px;border:1px solid var(--line);
  background:#fff;font-size:15px;font-family:inherit;color:var(--ink);
  margin-bottom:16px;transition:border-color .2s,box-shadow .2s;
}
form.contact input:focus,form.contact select:focus,form.contact textarea:focus{
  outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(255,106,61,.15);
}
form.contact textarea{min-height:120px;resize:vertical}
form.contact button{width:100%;justify-content:center}

/* ===== Service detail pages ===== */
.service-detail{display:grid;grid-template-columns:2fr 1fr;gap:56px;align-items:start}
.service-detail .main h3{margin-top:30px;margin-bottom:10px}
.service-detail .main p{color:var(--muted);margin-bottom:16px;font-size:16px}
.service-detail .main ul{margin:0 0 18px 22px;color:var(--muted)}
.service-detail .main ul li{margin-bottom:6px}
.aside-card{
  position:sticky;top:100px;background:var(--sand);padding:28px;border-radius:14px;border:1px solid var(--line);
}
.aside-card h4{color:var(--navy);margin-bottom:12px;font-size:18px}
.aside-card p{color:var(--muted);font-size:14px;margin-bottom:18px}
.aside-card ul{list-style:none;margin-bottom:22px}
.aside-card ul li{padding:7px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--ink)}
.aside-card ul li:last-child{border-bottom:0}

/* ===== Team / values ===== */
.values-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.value-card{
  background:#fff;padding:30px;border-radius:14px;border:1px solid var(--line);
  border-top:4px solid var(--accent);
}
.value-card h4{color:var(--navy);font-size:18px;margin-bottom:8px}
.value-card p{color:var(--muted);font-size:14px}

/* ===== Footer ===== */
footer.site{background:#081f38;color:#a9b6cc;padding:64px 0 28px;font-size:14px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:44px}
footer.site h5{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700}
footer.site ul{list-style:none}
footer.site ul li{margin-bottom:8px}
footer.site ul a:hover{color:var(--accent)}
footer.site .brand p{margin-top:14px;max-width:320px;color:#8b97ac}
.bottom{
  padding-top:24px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;color:#6c7a92;
}

/* ===== Responsive ===== */
@media (max-width:960px){
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .tech-grid{grid-template-columns:repeat(4,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .why-grid{grid-template-columns:1fr}
  .pillars-grid{grid-template-columns:1fr;gap:40px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr;gap:40px}
  .service-detail{grid-template-columns:1fr;gap:32px}
  .aside-card{position:static}
  .values-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:620px){
  nav.primary ul{display:none}
  .burger{display:block}
  .services-grid,.tech-grid,.steps,.values-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
  section{padding:64px 0}
  .hero{padding:72px 0 88px}
  .page-hero{padding:64px 0 72px}
  form.contact .row{grid-template-columns:1fr}
}