/* ============================================
   Numerik Skövde AB — Dark High-Tech Theme
   ============================================ */

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --green: #7AB648;
  --green-light: #93d45e;
  --green-dark: #5a8a32;
  --green-glow: rgba(122, 182, 72, 0.35);
  --bg-primary: #0a0a0f;
  --bg-secondary: #0f1018;
  --bg-card: #14151f;
  --bg-card-hover: #1a1b28;
  --text-primary: #e8e8ec;
  --text-secondary: #9499a8;
  --text-muted: #5c6070;
  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(122, 182, 72, 0.3);
  --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --radius: 12px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 0;
  scroll-snap-type: y mandatory;
}

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--green);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--green-light);
}

img {
  max-width: 100%;
  height: auto;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 24px;
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.nav-logo-img {
  height: 36px;
  width: auto;
  opacity: 0.9;
  transition: opacity var(--transition);
}

.nav-logo:hover .nav-logo-img {
  opacity: 1;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color var(--transition);
}

.nav-links a:hover {
  color: var(--text-primary);
}

.lang-toggle {
  background: transparent;
  border: 1px solid var(--text-muted);
  color: var(--text-secondary);
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: all var(--transition);
}

.lang-toggle:hover {
  border-color: var(--green);
  color: var(--green);
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav-hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translateY(5px) translateX(5px);
}
.nav-hamburger.active span:nth-child(2) {
  opacity: 0;
}
.nav-hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translateY(-5px) translateX(5px);
}

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  background: rgba(10, 10, 15, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 24px;
  z-index: 99;
  flex-direction: column;
  gap: 16px;
  border-bottom: 1px solid var(--border);
}

.mobile-menu.active {
  display: flex;
}

.mobile-menu a {
  color: var(--text-secondary);
  font-size: 1.1rem;
  padding: 8px 0;
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  overflow: hidden;
  scroll-snap-align: start;
}

.hero-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--green-glow) 0%, transparent 70%);
  filter: blur(80px);
  opacity: 0.4;
  animation: pulse-glow 4s ease-in-out infinite alternate;
  pointer-events: none;
}

@keyframes pulse-glow {
  0% { opacity: 0.3; transform: translate(-50%, -50%) scale(1); }
  100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1.15); }
}

.hero-content {
  position: relative;
  z-index: 1;
  animation: fade-up 1s ease-out;
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-logo {
  width: 420px;
  max-width: 85vw;
  height: auto;
  margin-bottom: 24px;
}

.hero-line {
  width: 60px;
  height: 3px;
  background: var(--green);
  margin: 0 auto 24px;
  border-radius: 3px;
  box-shadow: 0 0 12px var(--green-glow);
}

.hero-sub {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 40px;
  letter-spacing: 0.02em;
}

.btn {
  display: inline-block;
  padding: 14px 36px;
  background: transparent;
  color: var(--green);
  border: 1.5px solid var(--green);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 8px;
  letter-spacing: 0.02em;
  transition: all var(--transition);
  box-shadow: none;
}

.btn:hover {
  background: var(--green);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(122, 182, 72, 0.2);
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
}

.scroll-indicator span {
  display: block;
  width: 24px;
  height: 40px;
  border: 2px solid var(--text-muted);
  border-radius: 12px;
  position: relative;
}

.scroll-indicator span::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--green);
  border-radius: 4px;
  animation: scroll-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {
  0%, 100% { top: 8px; opacity: 1; }
  50% { top: 20px; opacity: 0.3; }
}

/* --- Sections --- */
.section {
  padding: 100px 24px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  scroll-snap-align: start;
}

.section > .container {
  width: 100%;
}

.section-alt {
  background: var(--bg-secondary);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 56px;
  text-align: center;
  letter-spacing: -0.01em;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 40px;
  height: 3px;
  background: var(--green);
  margin: 16px auto 0;
  border-radius: 3px;
  box-shadow: 0 0 10px var(--green-glow);
}

/* --- About --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-size: 1.05rem;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  transition: all var(--transition);
}

.stat-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.stat-icon {
  font-size: 2rem;
  margin-bottom: 12px;
  filter: grayscale(0.2);
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* --- Services --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.service-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  color: var(--green);
  margin-bottom: 20px;
}

.service-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.service-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* --- Contact --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-icon {
  color: var(--green);
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.contact-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 2px;
}

.contact-item a {
  font-size: 1.05rem;
}

.contact-cta {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
}

.contact-cta p {
  color: var(--text-secondary);
  margin-bottom: 24px;
  font-size: 1.05rem;
}

/* --- Footer --- */
.footer {
  padding: 24px;
  border-top: 1px solid var(--border);
  scroll-snap-align: end;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-icon {
  opacity: 0.5;
}

/* --- Scroll animations (spring / fjäder) --- */
.fade-in {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.5s ease-out, transform 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  .hero-logo {
    width: 280px;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .services-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .section {
    padding: 64px 20px;
    min-height: auto;
    scroll-snap-align: none;
  }

  .section-title {
    font-size: 1.6rem;
    margin-bottom: 40px;
  }

  html {
    scroll-snap-type: none;
  }

  .hero {
    padding: 100px 20px 60px;
    min-height: 100vh;
    min-height: 100svh;
    scroll-snap-align: none;
  }
}

@media (max-width: 480px) {
  .about-stats {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .stat-card {
    padding: 20px 12px;
  }

  .service-card {
    padding: 28px 20px;
  }

  .contact-cta {
    padding: 28px 20px;
  }
}

/* --- Accessibility --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  .fade-in {
    opacity: 1;
    transform: none;
  }
}

:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 2px;
  border-radius: 4px;
}

.btn:focus-visible {
  outline-offset: 4px;
  box-shadow: 0 0 0 4px rgba(122, 182, 72, 0.2);
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 200;
  padding: 12px 24px;
  background: var(--green);
  color: #fff;
  font-weight: 600;
  border-radius: 0 0 8px 8px;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 0;
  color: #fff;
}