/* ============================================================
   Sandvreten Solutions — Gungnir-inspired dark tactical theme
   ============================================================ */

:root{
  /* Gungnir-inspired palette (HSL) */
  --background: 220 20% 4%;
  --foreground: 210 10% 92%;
  --card:       220 18% 6%;
  --card-2:     220 14% 8%;
  --muted:      220 10% 11%;
  --muted-fg:   215 8% 55%;
  --border:     220 10% 13%;
  --steel:      220 6% 35%;
  --graphite:   220 6% 20%;
  --navy-deep:  220 18% 6%;
  --primary:    210 8% 70%;
  --accent:     30 55% 62%;      /* warm sand highlight for an engineering-esque accent */

  --radius: .25rem;
  --radius-lg: .5rem;

  --container-max: 80rem;
  --container-px: 1.5rem;

  --font-display: "Oswald", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:hsl(var(--background));
  color:hsl(var(--foreground));
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
ul{margin:0;padding:0;list-style:none}

/* Subtle grid background lines */
body::before{
  content:"";
  position:fixed;inset:0;
  background-image:
    linear-gradient(hsl(var(--border)/.25) 1px,transparent 1px),
    linear-gradient(90deg,hsl(var(--border)/.25) 1px,transparent 1px);
  background-size:80px 80px;
  mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 70%);
  -webkit-mask-image:radial-gradient(circle at 50% 20%,#000 0%,transparent 70%);
  pointer-events:none;
  z-index:0;
}

/* ---------- Layout primitives ---------- */
.section-container{
  max-width:var(--container-max);
  margin:0 auto;
  padding-left:var(--container-px);
  padding-right:var(--container-px);
  position:relative;
  z-index:1;
}
@media (min-width:768px){ :root{ --container-px:3rem; } }
@media (min-width:1280px){ :root{ --container-px:4rem; } }

/* ---------- Typography ---------- */
.headline-xxl,
.headline-xl,
.headline-lg,
.headline-md{
  font-family:var(--font-display);
  text-transform:uppercase;
  letter-spacing:-.02em;
  line-height:1.05;
  font-weight:700;
  margin:0;
  color:hsl(var(--foreground));
}
.headline-xxl{ font-size:clamp(2.5rem,6vw,5rem); }
.headline-xl { font-size:clamp(2rem,4vw,3.25rem); line-height:1.08; }
.headline-lg { font-size:clamp(1.5rem,2.6vw,2rem); }
.headline-md { font-size:1.15rem; letter-spacing:.02em; }

.eyebrow{
  font-family:var(--font-display);
  text-transform:uppercase;
  letter-spacing:.3em;
  font-size:.72rem;
  font-weight:500;
  color:hsl(var(--primary));
  margin:0 0 1.25rem;
  display:inline-flex;
  align-items:center;
  gap:.75rem;
}
.eyebrow::before{
  content:"";
  width:2rem;height:1px;background:hsl(var(--steel));
  display:inline-block;
}

.lede{
  font-size:clamp(1.05rem,1.3vw,1.25rem);
  max-width:46ch;
  color:hsl(var(--foreground)/.78);
  margin:1.5rem 0 0;
}
.body-lg{ font-size:1.05rem; color:hsl(var(--foreground)/.82); }
.muted{ color:hsl(var(--muted-fg)); }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-display);
  font-weight:600;
  font-size:.82rem;
  text-transform:uppercase;
  letter-spacing:.18em;
  padding:1rem 1.75rem;
  border-radius:var(--radius);
  border:1px solid transparent;
  transition:all .25s cubic-bezier(.4,0,.2,1);
  cursor:pointer;
  white-space:nowrap;
}
.btn-sm{ padding:.65rem 1.1rem; font-size:.72rem; letter-spacing:.2em; }
.btn-outline{
  border-color:hsl(var(--foreground)/.3);
  color:hsl(var(--foreground));
  background:transparent;
}
.btn-outline:hover{
  border-color:hsl(var(--foreground));
  background:hsl(var(--foreground)/.05);
}
.btn-solid{
  background:hsl(var(--foreground));
  color:hsl(var(--background));
  border-color:hsl(var(--foreground));
}
.btn-solid:hover{
  background:hsl(var(--foreground)/.85);
  border-color:hsl(var(--foreground)/.85);
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(10px) saturate(160%);
  -webkit-backdrop-filter:blur(10px) saturate(160%);
  background:hsl(var(--background)/.72);
  border-bottom:1px solid hsl(var(--border));
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:2rem;
  padding-top:1rem;padding-bottom:1rem;
}
.brand{
  display:inline-flex;align-items:center;
  font-family:var(--font-display);
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:.22em;
  font-size:1rem;
  color:hsl(var(--foreground));
  line-height:1;
  padding:.15rem 0;
  transition:color .2s ease;
}
.brand:hover{ color:hsl(var(--foreground)/.75); }
.brand-name{ display:inline-block; }
.site-nav{
  display:none;
  gap:2rem;
  font-family:var(--font-display);
  text-transform:uppercase;
  letter-spacing:.2em;
  font-size:.75rem;
  font-weight:500;
}
.site-nav a{
  color:hsl(var(--muted-fg));
  padding:.25rem 0;
  border-bottom:1px solid transparent;
}
.site-nav a:hover{ color:hsl(var(--foreground)); border-bottom-color:hsl(var(--foreground)/.4); }
@media (min-width:900px){ .site-nav{ display:inline-flex; } }

.nav-portal{
  display:inline-flex;align-items:center;gap:.55rem;
  color:hsl(var(--foreground)) !important;
  padding:.4rem .9rem !important;
  border:1px solid hsl(var(--accent)/.5);
  border-radius:999px;
  transition:all .25s ease;
}
.nav-portal:hover{
  border-color:hsl(var(--accent));
  background:hsl(var(--accent)/.08);
}
.nav-portal-dot{
  width:6px;height:6px;border-radius:50%;
  background:hsl(var(--accent));
  box-shadow:0 0 0 0 hsl(var(--accent)/.6);
  animation:pulse 2.2s ease-out infinite;
}
@keyframes pulse{
  0%{ box-shadow:0 0 0 0 hsl(var(--accent)/.55); }
  70%{ box-shadow:0 0 0 8px hsl(var(--accent)/0); }
  100%{ box-shadow:0 0 0 0 hsl(var(--accent)/0); }
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:8rem 0 6rem;
  overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;
  background:
    radial-gradient(1000px 600px at 80% 10%, hsl(var(--accent)/.08), transparent 60%),
    radial-gradient(900px 500px at 10% 30%, hsl(var(--primary)/.08), transparent 65%),
    linear-gradient(180deg, hsl(var(--background)), hsl(var(--navy-deep)) 50%, hsl(var(--background)));
  z-index:0;
}
.hero-inner{ position:relative; z-index:1; max-width:72rem; }
.hero h1{ margin-top:1rem; }
.hero-actions{
  display:flex;flex-wrap:wrap;gap:1rem;
  margin-top:2.5rem;
}
.hero-meta{
  margin-top:4rem;
  display:grid;
  grid-template-columns:1fr;
  border-top:1px solid hsl(var(--border));
  padding-top:1.5rem;
  gap:1rem;
}
.hero-meta > div{
  display:flex;flex-direction:column;gap:.25rem;
  border-left:1px solid hsl(var(--border));
  padding-left:1rem;
}
.hero-meta > div:first-child{ border-left:none; padding-left:0; }
.meta-k{
  font-family:var(--font-display);
  font-size:.68rem;
  letter-spacing:.3em;
  text-transform:uppercase;
  color:hsl(var(--muted-fg));
}
.meta-v{
  font-size:.92rem;
  color:hsl(var(--foreground)/.85);
}
@media (min-width:768px){
  .hero-meta{ grid-template-columns:repeat(3,1fr); }
  .hero-meta > div{ border-left:1px solid hsl(var(--border)); padding-left:1.5rem; }
  .hero-meta > div:first-child{ border-left:none; padding-left:0; }
}

/* ---------- Capability strip ---------- */
.cap-strip{
  padding:5rem 0;
  border-top:1px solid hsl(var(--border));
  border-bottom:1px solid hsl(var(--border));
  background:hsl(var(--card)/.5);
}
.cap-grid{
  display:grid;
  gap:2rem;
  grid-template-columns:1fr;
}
@media (min-width:700px){ .cap-grid{ grid-template-columns:repeat(2,1fr); } }
@media (min-width:1100px){ .cap-grid{ grid-template-columns:repeat(4,1fr); gap:0; } }

.cap{
  padding:1.5rem;
  border-left:1px solid hsl(var(--border));
}
@media (max-width:1099px){ .cap{ border-left:none; border-top:1px solid hsl(var(--border)); padding-left:0; } }
.cap-no{
  font-family:var(--font-display);
  font-size:.7rem;
  letter-spacing:.3em;
  color:hsl(var(--accent));
  text-transform:uppercase;
  display:block;
  margin-bottom:1rem;
}
.cap h3{ margin:0 0 .75rem; }
.cap p{ margin:0; color:hsl(var(--muted-fg)); font-size:.95rem; }

/* ---------- About ---------- */
.about{ padding:7rem 0; }
.about-grid{
  display:grid;
  gap:3rem;
  grid-template-columns:1fr;
  align-items:center;
}
@media (min-width:900px){ .about-grid{ grid-template-columns:minmax(260px,380px) 1fr; gap:5rem; } }
.about-aside{
  border-left:1px solid hsl(var(--border));
  padding:.25rem 0 .25rem 1.5rem;
}
.about-aside-label{
  font-family:var(--font-display);
  text-transform:uppercase;
  letter-spacing:.3em;
  font-size:.72rem;
  color:hsl(var(--muted-fg));
  margin:0 0 1rem;
}
.about-aside-rule{
  width:3rem;height:1px;background:hsl(var(--accent));
  margin:0 0 1.25rem;
}
.about-aside-roles{
  display:flex;flex-direction:column;gap:.5rem;
}
.about-aside-roles li{
  font-family:var(--font-display);
  font-weight:500;
  text-transform:uppercase;
  letter-spacing:.18em;
  font-size:.85rem;
  color:hsl(var(--foreground)/.9);
  padding-bottom:.5rem;
  border-bottom:1px solid hsl(var(--border));
}
.about-aside-roles li:last-child{ border-bottom:none; }
.about-copy h2{ margin-top:.5rem; }
.about-copy .body-lg{ margin:1.5rem 0; }

.tag-list{
  display:flex;flex-wrap:wrap;gap:.5rem;
  margin-top:1.5rem;
}
.tag-list li{
  font-family:var(--font-display);
  text-transform:uppercase;
  letter-spacing:.18em;
  font-size:.7rem;
  padding:.45rem .8rem;
  border:1px solid hsl(var(--border));
  border-radius:999px;
  color:hsl(var(--muted-fg));
  background:hsl(var(--card)/.6);
}

/* ---------- Services ---------- */
.services{
  padding:7rem 0;
  border-top:1px solid hsl(var(--border));
  background:linear-gradient(180deg, hsl(var(--background)), hsl(var(--navy-deep)), hsl(var(--background)));
}
.services-head{ max-width:44rem; margin-bottom:3rem; }
.services-head .body-lg{ margin-top:1rem; }

.services-grid{
  display:grid;gap:1.25rem;
  grid-template-columns:1fr;
}
@media (min-width:900px){ .services-grid{ grid-template-columns:repeat(2,1fr); } }
@media (min-width:1200px){
  .services-grid{ grid-template-columns:repeat(3,1fr); }
  .service-card--wide{ grid-column:span 1; }
}

.service-card{
  background:hsl(var(--card)/.75);
  border:1px solid hsl(var(--border));
  border-radius:var(--radius-lg);
  padding:2rem;
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  display:flex;flex-direction:column;gap:1.5rem;
  transition:border-color .3s ease, transform .3s ease;
}
.service-card:hover{
  border-color:hsl(var(--steel));
  transform:translateY(-2px);
}
.service-no{
  font-family:var(--font-display);
  font-size:.68rem;
  letter-spacing:.3em;
  text-transform:uppercase;
  color:hsl(var(--accent));
}
.service-card header h3{ margin:.75rem 0 .5rem; }
.service-card header p{ margin:0; color:hsl(var(--muted-fg)); font-size:.95rem; }

.sub-label{
  font-family:var(--font-display);
  text-transform:uppercase;
  letter-spacing:.2em;
  font-size:.72rem;
  font-weight:600;
  color:hsl(var(--foreground)/.9);
  margin:1.25rem 0 .5rem;
  padding-bottom:.4rem;
  border-bottom:1px solid hsl(var(--border));
}
.service-body ul{
  display:flex;flex-direction:column;gap:.4rem;
  margin-bottom:.5rem;
}
.service-body li{
  position:relative;
  padding-left:1.2rem;
  font-size:.95rem;
  color:hsl(var(--foreground)/.8);
}
.service-body li::before{
  content:"";
  position:absolute;left:0;top:.7em;
  width:.55rem;height:1px;background:hsl(var(--steel));
}

.kpi-list{ display:grid; gap:.75rem; margin-top:1rem; }
.kpi-list li{
  display:flex;justify-content:space-between;align-items:baseline;gap:1rem;
  padding:.75rem 0;
  border-top:1px solid hsl(var(--border));
}
.kpi-list li:last-child{ border-bottom:1px solid hsl(var(--border)); }
.kpi-k{
  font-family:var(--font-display);
  text-transform:uppercase;
  letter-spacing:.2em;
  font-size:.75rem;
  color:hsl(var(--foreground));
}
.kpi-v{
  color:hsl(var(--muted-fg));
  font-size:.9rem;
  text-align:right;
}

/* ---------- Portal ---------- */
.portal{
  position:relative;
  padding:6rem 0;
  border-top:1px solid hsl(var(--border));
  border-bottom:1px solid hsl(var(--border));
  background:
    radial-gradient(700px 300px at 85% 50%, hsl(var(--accent)/.1), transparent 70%),
    linear-gradient(180deg, hsl(var(--navy-deep)), hsl(var(--background)));
  overflow:hidden;
}
.portal::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    linear-gradient(90deg, hsl(var(--accent)/.18) 1px, transparent 1px);
  background-size:120px 100%;
  mask-image:linear-gradient(90deg, transparent, #000 50%, transparent);
  -webkit-mask-image:linear-gradient(90deg, transparent, #000 50%, transparent);
  opacity:.5;
  pointer-events:none;
}
.portal-inner{
  position:relative;z-index:1;
  display:grid;
  gap:2.5rem;
  grid-template-columns:1fr;
  align-items:center;
}
@media (min-width:900px){
  .portal-inner{ grid-template-columns:1.5fr 1fr; gap:4rem; }
}
.portal-copy h2{ margin-top:.5rem; }
.portal-copy .body-lg{ margin-top:1.25rem; max-width:34rem; }
.portal-live{
  display:inline-block;
  width:8px;height:8px;border-radius:50%;
  background:hsl(var(--accent));
  box-shadow:0 0 12px hsl(var(--accent)/.7);
  margin-right:-.15rem;
  animation:pulse 2.2s ease-out infinite;
}
.portal-copy .eyebrow::before{ display:none; }
.portal-copy .eyebrow{ gap:.6rem; color:hsl(var(--accent)); }

.portal-cta{
  display:flex;flex-direction:column;gap:.9rem;
  align-items:flex-start;
}
@media (min-width:900px){ .portal-cta{ align-items:flex-end; } }
.btn-lg{
  padding:1.1rem 1.75rem;
  font-size:.85rem;
  gap:.75rem;
}
.btn-arrow{
  display:inline-block;
  transition:transform .25s ease;
}
.btn-solid:hover .btn-arrow{ transform:translateX(4px); }
.portal-url{
  font-family:var(--font-display);
  text-transform:uppercase;
  letter-spacing:.24em;
  font-size:.7rem;
  color:hsl(var(--muted-fg));
  margin:0;
}

/* ---------- Approach ---------- */
.approach{ padding:7rem 0; border-top:1px solid hsl(var(--border)); }
.approach-grid{
  display:grid;
  gap:3rem;
  grid-template-columns:1fr;
}
@media (min-width:900px){ .approach-grid{ grid-template-columns:1fr 1.3fr; gap:5rem; } }
.approach-head h2{ margin-top:.5rem; }
.approach-body .body-lg{ margin-top:0; }
.divider{
  height:1px;background:hsl(var(--border));
  margin:2rem 0;
}
.approach-list{
  display:grid;gap:1.5rem;margin:0;
}
.approach-list > div{
  display:grid;
  grid-template-columns:1fr;
  gap:.4rem;
  padding-bottom:1.25rem;
  border-bottom:1px solid hsl(var(--border));
}
.approach-list dt{
  font-family:var(--font-display);
  text-transform:uppercase;
  letter-spacing:.22em;
  font-size:.78rem;
  color:hsl(var(--foreground));
}
.approach-list dd{ margin:0; color:hsl(var(--muted-fg)); font-size:.98rem; }
@media (min-width:600px){
  .approach-list > div{ grid-template-columns:auto 1fr; gap:1.5rem; align-items:baseline; }
}

/* ---------- Contact ---------- */
.contact{
  padding:9rem 0;
  border-top:1px solid hsl(var(--border));
  background:
    radial-gradient(800px 400px at 50% 0%, hsl(var(--accent)/.08), transparent 70%),
    hsl(var(--background));
  text-align:center;
}
.contact-inner{ max-width:50rem; margin:0 auto; }
.contact h2{ margin-top:1rem; }
.contact .body-lg{ margin:1.5rem auto 2rem; max-width:32rem; }
.contact-mail{
  display:inline-block;
  font-family:var(--font-display);
  font-size:clamp(1.2rem,2.4vw,2rem);
  letter-spacing:.05em;
  text-transform:lowercase;
  padding:.5rem 0;
  border-bottom:1px solid hsl(var(--foreground)/.3);
  transition:border-color .2s ease;
}
.contact-mail:hover{ border-bottom-color:hsl(var(--foreground)); }
.contact-actions{ margin-top:2.5rem; display:flex; justify-content:center; }

/* ---------- Footer ---------- */
.site-footer{
  border-top:1px solid hsl(var(--border));
  padding:3rem 0;
  background:hsl(var(--navy-deep));
}
.footer-inner{
  display:flex;flex-wrap:wrap;
  justify-content:space-between;
  align-items:flex-start;
  gap:2rem;
}
.footer-brand{
  display:flex;align-items:center;
}
.footer-name{
  font-family:var(--font-display);
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:.22em;
  font-size:1rem;
  margin:0;
}
.footer-tagline{
  margin:.15rem 0 0;
  font-size:.8rem;
  color:hsl(var(--muted-fg));
}
.footer-meta{
  font-size:.85rem;
  color:hsl(var(--muted-fg));
  text-align:right;
}
.footer-meta p{ margin:.2rem 0; }

/* ---------- Focus & selection ---------- */
:focus-visible{
  outline:2px solid hsl(var(--accent));
  outline-offset:3px;
  border-radius:2px;
}
::selection{ background:hsl(var(--accent)/.35); color:hsl(var(--foreground)); }