/* ===== Design tokens ===== */
:root{
  --navy-900:#0a1633;
  --navy-800:#101f47;
  --navy-700:#1b2e63;
  --blue-500:#6f86f8;
  --accent:#4f6bf6;       /* logo blue */
  --accent-dark:#3a52d8;
  --ink:#0d1b2a;
  --slate:#475569;
  --slate-light:#64748b;
  --line:#e6ebf2;
  --bg:#ffffff;
  --bg-soft:#f5f8fc;
  --white:#ffffff;
  --radius:16px;
  --radius-sm:10px;
  --shadow-sm:0 1px 3px rgba(13,27,42,.06),0 1px 2px rgba(13,27,42,.04);
  --shadow:0 10px 30px -12px rgba(13,27,42,.18);
  --shadow-lg:0 24px 60px -20px rgba(13,27,42,.28);
  --container:1180px;
  --ease:cubic-bezier(.4,0,.2,1);
}

/* ===== Reset ===== */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:"Inter","Plus Jakarta Sans",system-ui,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  font-size:16px;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
h1,h2,h3,h4,h5{font-family:"Plus Jakarta Sans",sans-serif;line-height:1.2;font-weight:700;letter-spacing:-.02em}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  font-family:"Plus Jakarta Sans",sans-serif;font-weight:600;font-size:.95rem;
  padding:.85rem 1.6rem;border-radius:var(--radius-sm);border:1px solid transparent;
  cursor:pointer;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-sm{padding:.55rem 1.1rem;font-size:.85rem}
.btn-block{width:100%}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px -8px rgba(79,107,246,.6)}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:0 14px 28px -10px rgba(79,107,246,.65)}
.btn-ghost{background:transparent;color:var(--white);border-color:rgba(255,255,255,.35)}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.6)}

/* ===== Header ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .3s var(--ease),box-shadow .3s var(--ease),padding .3s var(--ease);
  padding:18px 0;
}
.site-header.scrolled{
  background:rgba(255,255,255,.92);backdrop-filter:blur(14px);
  box-shadow:var(--shadow-sm);padding:12px 0;
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:1.5rem}

.logo{display:flex;align-items:center}
.logo-img{height:38px;width:auto;display:block;transition:height .3s var(--ease)}
.scrolled .logo-img{height:34px}
/* header: tund hero-da ag logo, scroll-da (ag header) tund logo */
.logo-on-light{display:none}
.scrolled .logo-on-dark{display:none}
.scrolled .logo-on-light{display:block}
/* footer logo (tund fon) */
.footer-logo .logo-img{height:44px}

.nav{display:flex;align-items:center;gap:2rem}
.nav a{
  font-weight:500;font-size:.95rem;color:rgba(255,255,255,.85);position:relative;
  transition:color .2s var(--ease);
}
.nav a::after{content:"";position:absolute;left:0;bottom:-6px;height:2px;width:0;background:var(--accent);transition:width .25s var(--ease)}
.nav a:hover{color:#fff}
.nav a:hover::after{width:100%}
.scrolled .nav a{color:var(--slate)}
.scrolled .nav a:hover{color:var(--ink)}

.header-actions{display:flex;align-items:center;gap:1rem}
.lang-switch{display:flex;align-items:center;gap:.5rem}
.lang-btn{
  background:none;border:none;cursor:pointer;padding:0;line-height:0;border-radius:5px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),opacity .2s var(--ease);
}
.lang-btn img{
  width:30px;height:21px;object-fit:cover;border-radius:4px;display:block;
  box-shadow:0 0 0 1px rgba(255,255,255,.25);
}
.lang-btn{opacity:.5;filter:grayscale(40%)}
.lang-btn:hover{opacity:.85;transform:translateY(-1px)}
.lang-btn.active{opacity:1;filter:none}
.lang-btn.active img{box-shadow:0 0 0 2px var(--accent),0 4px 10px -4px rgba(0,0,0,.4)}
.scrolled .lang-btn img{box-shadow:0 0 0 1px var(--line)}
.scrolled .lang-btn.active img{box-shadow:0 0 0 2px var(--accent-dark),0 4px 10px -4px rgba(0,0,0,.2)}

.menu-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:4px}
.menu-toggle span{width:24px;height:2px;background:var(--white);border-radius:2px;transition:.3s var(--ease)}
.scrolled .menu-toggle span{background:var(--ink)}

/* ===== Hero ===== */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;color:var(--white);overflow:hidden}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background:
    radial-gradient(1100px 600px at 80% -10%,rgba(31,111,235,.45),transparent 60%),
    radial-gradient(900px 500px at 10% 110%,rgba(79,107,246,.35),transparent 55%),
    linear-gradient(160deg,var(--navy-900),var(--navy-800) 55%,#0a2748);
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:54px 54px;mask-image:radial-gradient(ellipse at 50% 40%,#000,transparent 75%);
}
.hero-inner{position:relative;padding:140px 24px 100px}
.hero-content{max-width:760px}
.hero-eyebrow{
  display:inline-block;font-size:.8rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent);background:rgba(79,107,246,.12);border:1px solid rgba(79,107,246,.3);
  padding:.4rem 1rem;border-radius:100px;margin-bottom:1.6rem;
}
.hero-title{font-size:clamp(2.2rem,5vw,3.8rem);font-weight:800;margin-bottom:1.3rem;letter-spacing:-.03em}
.hero-subtitle{font-size:clamp(1.05rem,2vw,1.3rem);color:rgba(255,255,255,.8);max-width:600px;margin-bottom:2.4rem}
.hero-actions{display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:3.5rem}
.hero-stats{display:flex;gap:3rem;flex-wrap:wrap}
.stat{display:flex;flex-direction:column}
.stat-num{font-family:"Plus Jakarta Sans",sans-serif;font-size:2.2rem;font-weight:800;color:#fff;letter-spacing:-.03em}
.stat-label{font-size:.85rem;color:rgba(255,255,255,.6);max-width:140px}

.hero-scroll{position:absolute;bottom:30px;left:50%;transform:translateX(-50%)}
.hero-scroll span{display:block;width:26px;height:42px;border:2px solid rgba(255,255,255,.4);border-radius:14px;position:relative}
.hero-scroll span::after{content:"";position:absolute;top:8px;left:50%;transform:translateX(-50%);width:4px;height:8px;background:var(--accent);border-radius:4px;animation:scroll 1.6s infinite}
@keyframes scroll{0%{opacity:0;top:8px}40%{opacity:1}80%{opacity:0;top:22px}100%{opacity:0}}

/* ===== Sections ===== */
.section{padding:110px 0}
.section-head{margin-bottom:3.5rem;max-width:720px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-tag{
  display:inline-block;font-size:.95rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:var(--accent-dark);margin-bottom:1.1rem;
  background:rgba(79,107,246,.1);border:1px solid rgba(79,107,246,.25);
  padding:.45rem 1.1rem;border-radius:100px;
}
.section-tag.light{color:#fff;background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.2)}
.section-title{font-size:clamp(1.8rem,3.5vw,2.6rem);color:var(--ink);margin-bottom:1rem}
.section-title.light{color:#fff}
.section-lead{font-size:1.1rem;color:var(--slate)}

/* ===== About ===== */
.about{background:var(--bg-soft)}
.about-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:3rem;align-items:start}
.about-text p{color:var(--slate);margin-bottom:1.2rem;font-size:1.03rem}
.about-text p:last-child{margin-bottom:0}
.about-card{
  background:linear-gradient(160deg,var(--navy-800),var(--navy-900));
  color:#fff;padding:2.4rem;border-radius:var(--radius);box-shadow:var(--shadow-lg);position:sticky;top:100px;
}
.about-card h3{font-size:1.3rem;margin-bottom:1.5rem}
.check-list li{position:relative;padding-left:2rem;margin-bottom:1.1rem;color:rgba(255,255,255,.85);font-size:.97rem}
.check-list li::before{
  content:"✓";position:absolute;left:0;top:0;width:1.4rem;height:1.4rem;border-radius:50%;
  background:rgba(79,107,246,.18);color:var(--accent);display:grid;place-items:center;font-size:.8rem;font-weight:700;
}

/* ===== Services ===== */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem}
.service-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:2rem;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  position:relative;overflow:hidden;
}
.service-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--accent),var(--blue-500));
  transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease);
}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:transparent}
.service-card:hover::before{transform:scaleX(1)}
.service-icon{
  width:54px;height:54px;border-radius:14px;display:grid;place-items:center;
  background:var(--bg-soft);margin-bottom:1.3rem;transition:.3s var(--ease);
}
.service-icon svg{
  width:27px;height:27px;fill:none;stroke:var(--accent);stroke-width:1.8;
  stroke-linecap:round;stroke-linejoin:round;transition:.3s var(--ease);
}
.service-card:hover .service-icon{background:linear-gradient(135deg,var(--accent),var(--blue-500))}
.service-card:hover .service-icon svg{stroke:#fff}
.service-card h3{font-size:1.18rem;color:var(--ink);margin-bottom:1rem}
.service-card ul li{position:relative;padding-left:1.3rem;color:var(--slate);font-size:.92rem;margin-bottom:.6rem;line-height:1.5}
.service-card ul li::before{content:"";position:absolute;left:0;top:.55rem;width:6px;height:6px;border-radius:50%;background:var(--accent)}
.service-card ul li:last-child{margin-bottom:0}

/* ===== Values ===== */
.values{background:linear-gradient(160deg,var(--navy-900),var(--navy-800));position:relative;overflow:hidden}
.values::before{content:"";position:absolute;top:-30%;right:-10%;width:500px;height:500px;border-radius:50%;background:radial-gradient(circle,rgba(79,107,246,.18),transparent 70%)}
.values-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:1.5rem;position:relative}
.value-item{
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);
  padding:2rem 1.4rem;text-align:center;transition:.3s var(--ease);
}
.value-item:hover{background:rgba(255,255,255,.08);border-color:rgba(79,107,246,.4);transform:translateY(-4px)}
.value-num{display:block;font-family:"Plus Jakarta Sans",sans-serif;font-size:1.6rem;font-weight:800;color:var(--accent);margin-bottom:.8rem}
.value-item h4{color:#fff;font-size:1.02rem;font-weight:600}

/* ===== Contact ===== */
.contact{background:var(--bg-soft)}
.contact-wrap{display:grid;grid-template-columns:1fr 1fr;gap:3.5rem;align-items:start}
.contact-info .section-title{margin-bottom:1rem}
.contact-info > p{color:var(--slate);font-size:1.05rem;margin-bottom:2.2rem;max-width:420px}
.contact-list li{display:flex;gap:1rem;align-items:center;margin-bottom:1.3rem}
.ci-icon{width:48px;height:48px;border-radius:12px;background:var(--white);box-shadow:var(--shadow-sm);display:grid;place-items:center;font-size:1.3rem;flex-shrink:0}
.ci-icon svg{width:24px;height:24px}
.ci-wa{background:#25D366;color:#fff;box-shadow:0 8px 18px -8px rgba(37,211,102,.7)}
.foot-wa{display:inline-flex;align-items:center;gap:.5rem}
.foot-wa svg{width:16px;height:16px;color:#25D366;flex-shrink:0}
.ci-label{display:block;font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;color:var(--slate-light);font-weight:600}
.contact-list a{font-weight:600;color:var(--ink);font-size:1.05rem}
.contact-list a:hover{color:var(--accent-dark)}

.contact-form{background:var(--white);padding:2.4rem;border-radius:var(--radius);box-shadow:var(--shadow)}
.field{margin-bottom:1.3rem}
.field label{display:block;font-weight:600;font-size:.88rem;margin-bottom:.5rem;color:var(--ink)}
.field input,.field textarea{
  width:100%;padding:.85rem 1rem;border:1px solid var(--line);border-radius:var(--radius-sm);
  font-family:inherit;font-size:.95rem;color:var(--ink);background:var(--bg-soft);transition:.2s var(--ease);resize:vertical;
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent);background:#fff;box-shadow:0 0 0 4px rgba(79,107,246,.12)}
.form-note{font-size:.8rem;color:var(--slate-light);margin-top:1rem;text-align:center}
.form-note.success{color:var(--accent-dark);font-weight:600}

/* ===== Footer ===== */
.site-footer{background:var(--navy-900);color:rgba(255,255,255,.7)}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr;gap:2.5rem;padding:64px 24px 48px}
.footer-brand .logo{margin-bottom:1.2rem}
.footer-brand .logo-text{color:#fff}
.footer-brand p{font-size:.95rem;max-width:340px;color:rgba(255,255,255,.6)}
.footer-col h5{color:#fff;font-size:.95rem;margin-bottom:1.2rem;text-transform:uppercase;letter-spacing:.08em;font-size:.82rem}
.footer-col a{display:block;font-size:.95rem;margin-bottom:.7rem;color:rgba(255,255,255,.65);transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:22px 0;font-size:.85rem;color:rgba(255,255,255,.5)}
.footer-bottom .container{text-align:center}

/* ===== Reveal animation ===== */
[data-reveal]{opacity:0;transform:translateY(28px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
[data-reveal].in{opacity:1;transform:none}

/* ===== Responsive ===== */
@media(max-width:980px){
  .about-grid{grid-template-columns:1fr}
  .about-card{position:static}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .values-grid{grid-template-columns:repeat(3,1fr)}
  .contact-wrap{grid-template-columns:1fr;gap:2.5rem}
}
@media(max-width:760px){
  .section{padding:80px 0}
  .menu-toggle{display:flex}
  .header-cta{display:none}
  .nav{
    position:fixed;top:0;right:0;height:100vh;width:min(78vw,320px);
    background:var(--navy-900);flex-direction:column;align-items:flex-start;justify-content:center;
    padding:2rem 2.4rem;gap:1.6rem;transform:translateX(100%);transition:transform .35s var(--ease);
    box-shadow:-20px 0 60px -20px rgba(0,0,0,.5);
  }
  .nav.open{transform:translateX(0)}
  .nav a{color:rgba(255,255,255,.85);font-size:1.15rem}
  .scrolled .nav a{color:rgba(255,255,255,.85)}
  .menu-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .menu-toggle.active span:nth-child(2){opacity:0}
  .menu-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .hero-stats{gap:1.8rem}
  .stat-num{font-size:1.8rem}
}
@media(max-width:560px){
  .services-grid{grid-template-columns:1fr}
  .values-grid{grid-template-columns:repeat(2,1fr)}
  .footer-inner{grid-template-columns:1fr;gap:2rem}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
}