/* =============================
   ANDERSSON STUDIO — Light Theme
   ============================= */

/* Design tokens */
:root{
  --bg:#F5F7FB;          /* page background */
  --surface:#FFFFFF;     /* cards/nav */
  --surface-weak:#FAFBFF;
  --text:#0F172A;        /* primary text */
  --muted:#6B7280;       /* secondary text */
  --brand:#2563EB;       /* blue */
  --brand-2:#7C3AED;     /* violet */
  --accent:#059669;      /* emerald */
  --border:#E5E7EB;      /* borders */
  --shadow-md: 0 8px 24px rgba(15, 23, 42, .08);
  --shadow-lg: 0 18px 40px rgba(15, 23, 42, .12);
  --radius-lg: 16px;
  --radius-md: 12px;

  --fs-xs:12px; --fs-sm:14px; --fs-md:16px; --fs-lg:18px; --fs-xl:28px; --fs-2xl:44px;
  --container:1100px;
  --gap:18px;
}

/* Base */
*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color:var(--text);
  background:
    radial-gradient(1000px 500px at -10% -10%, rgba(37,99,235,.10), transparent),
    radial-gradient(800px 400px at 110% 0%, rgba(124,58,237,.08), transparent),
    var(--bg);
  line-height:1.6;
}
.container{max-width:var(--container);margin:0 auto;padding:24px}
.section{padding:32px 0}
.grid{display:grid;gap:var(--gap)}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}

/* Navigation */
.nav{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 0;border-bottom:1px solid var(--border);
  background:linear-gradient(180deg, var(--surface), var(--surface-weak));
  position:sticky;top:0;z-index:10;
}
.logo{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.02em}
.logo img{height:32px;width:auto}
.nav a{
  color:var(--text);text-decoration:none;margin:0 10px;font-size:var(--fs-md);opacity:.85;position:relative
}
.nav a:hover{opacity:1}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
  transform:scaleX(0);transform-origin:left;transition:.22s;
}
.nav a:hover::after{transform:scaleX(1)}

/* Hero */
.hero{
  display:grid;grid-template-columns:1.25fr .75fr;gap:36px;align-items:center;padding:42px 0 30px;
}
.hero h1{font-size:var(--fs-2xl);line-height:1.08;margin:0 0 10px;letter-spacing:-.02em}
.hero p{color:var(--muted);margin:0 0 18px}
.badge{
  display:inline-block;padding:6px 10px;border-radius:999px;background:rgba(37,99,235,.08);
  color:#1D4ED8;border:1px solid #DBEAFE;font-weight:700;font-size:12px;letter-spacing:.05em
}

/* Cards */
.card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:20px;
  box-shadow:var(--shadow-md);
  transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}

/* Buttons */
.btn{
  appearance:none;display:inline-block;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#FFFFFF;border:none;padding:12px 18px;border-radius:12px;
  font-weight:800;cursor:pointer;box-shadow:var(--shadow-md);
  transition:transform .18s ease, box-shadow .18s ease, filter .18s ease;
}
.btn:hover{transform:translateY(-1px);filter:saturate(1.05);box-shadow:var(--shadow-lg)}
.btn.secondary{
  background:transparent;border:1px solid var(--border);color:var(--text);box-shadow:none;
}
a.btn-link{color:var(--brand);text-decoration:none}
a.btn-link:hover{text-decoration:underline}

/* KPI tiles */
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.kpi{background:#F1F5FF;border:1px solid #E0E7FF;border-radius:14px;padding:14px;text-align:center}
.kpi .value{font-size:28px;font-weight:900;letter-spacing:.02em}

/* Typography */
h1,h2,h3{margin:0 0 8px}
.h2{font-size:var(--fs-xl)}
.sub{color:var(--muted);margin:0 0 16px}

/* Forms */
input, textarea{
  width:100%;padding:12px;border-radius:12px;border:1px solid var(--border);
  background:#FFFFFF;color:var(--text);outline:none;
  transition:border-color .2s ease, box-shadow .2s ease;
}
input:focus, textarea:focus{border-color:#BFDBFE;box-shadow:0 0 0 4px rgba(59,130,246,.18)}
label{font-size:14px;color:var(--muted)}
form .row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.small{font-size:12px;color:var(--muted)}

/* Tables & lists */
.table{width:100%;border-collapse:collapse;font-size:14px}
.table th,.table td{border-bottom:1px solid var(--border);padding:10px;text-align:left}
.list{list-style:none;padding:0;margin:0}
.list li{padding:8px 0;border-bottom:1px dashed var(--border)}

/* Footer */
.footer{border-top:1px solid var(--border);padding:24px 0;color:var(--muted);font-size:14px;background:var(--surface-weak)}

/* Responsive */
@media (max-width: 1024px){
  .hero{grid-template-columns:1fr}
  .grid.cols-3{grid-template-columns:1fr 1fr}
  .kpis{grid-template-columns:repeat(2,1fr)}
}
@media (max-width: 720px){
  .grid.cols-2{grid-template-columns:1fr}
  .grid.cols-3{grid-template-columns:1fr}
  .hero h1{font-size:36px}
}