/* ==========================================================================
   ERS - Enterprise Research Shield
   Stylesheet v1.0
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Variables - Redigera här för att ändra färgtema
   -------------------------------------------------------------------------- */
:root {
  /* Primärfärger */
  --color-primary: #0f172a;
  --color-primary-light: #1e293b;
  --color-primary-dark: #020617;
  
  /* Accentfärger */
  --color-accent: #10b981;
  --color-accent-light: #34d399;
  --color-accent-dark: #059669;
  
  /* Neutrala */
  --color-white: #ffffff;
  --color-gray-50: #f8fafc;
  --color-gray-100: #f1f5f9;
  --color-gray-200: #e2e8f0;
  --color-gray-300: #cbd5e1;
  --color-gray-400: #94a3b8;
  --color-gray-500: #64748b;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-800: #1e293b;
  --color-gray-900: #0f172a;
  
  /* Statusfärger för driftlägen */
  --color-green: #10b981;
  --color-green-bg: rgba(16, 185, 129, 0.1);
  --color-amber: #f59e0b;
  --color-amber-bg: rgba(245, 158, 11, 0.1);
  --color-red: #ef4444;
  --color-red-bg: rgba(239, 68, 68, 0.1);
  
  /* Typografi */
  --font-display: 'DM Sans', system-ui, sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Spacing */
  --section-padding: clamp(4rem, 10vw, 8rem);
  --container-max: 1200px;
  --container-padding: 1.5rem;
  
  /* Animationer */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  
  /* Border radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-gray-700);
  background-color: var(--color-white);
}

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

a {
  color: inherit;
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.25rem; }

p {
  margin-bottom: 1rem;
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--section-padding) 0;
}

.section--dark {
  background-color: var(--color-primary);
  color: var(--color-gray-200);
}

.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--color-white);
}

.section--gray {
  background-color: var(--color-gray-50);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 4rem;
}

.section-header p {
  font-size: 1.125rem;
  color: var(--color-gray-500);
  margin-top: 1rem;
}

.section--dark .section-header p {
  color: var(--color-gray-400);
}

/* --------------------------------------------------------------------------
   Header / Navigation
   -------------------------------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition-base);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo__icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--color-white);
  letter-spacing: -0.5px;
}

.logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-white);
}

.logo__subtitle {
  font-size: 0.6875rem;
  color: var(--color-gray-400);
  letter-spacing: 0.5px;
}

.nav {
  display: none;
}

@media (min-width: 768px) {
  .nav {
    display: flex;
    align-items: center;
    gap: 2rem;
  }
}

.nav__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-gray-300);
  transition: var(--transition-fast);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: var(--transition-base);
}

.nav__link:hover {
  color: var(--color-white);
}

.nav__link:hover::after {
  width: 100%;
}

.header__cta {
  display: none;
}

@media (min-width: 768px) {
  .header__cta {
    display: block;
  }
}

/* Mobile menu button */
.mobile-menu-btn {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

@media (min-width: 768px) {
  .mobile-menu-btn {
    display: none;
  }
}

.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background: var(--color-gray-300);
  transition: var(--transition-base);
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: var(--transition-base);
  text-decoration: none;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

.btn--secondary {
  background: transparent;
  color: var(--color-gray-300);
  border: 1px solid var(--color-gray-600);
}

.btn--secondary:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--color-gray-500);
  color: var(--color-white);
}

.btn--outline {
  background: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}

.btn--outline:hover {
  background: var(--color-accent);
  color: var(--color-white);
}

.btn--large {
  padding: 1rem 2rem;
  font-size: 1rem;
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--color-primary);
  position: relative;
  overflow: hidden;
  padding-top: 72px;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(ellipse at 20% 50%, rgba(16, 185, 129, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(16, 185, 129, 0.1) 0%, transparent 40%),
    radial-gradient(ellipse at 60% 80%, rgba(16, 185, 129, 0.08) 0%, transparent 40%);
  pointer-events: none;
}

/* Grid pattern */
.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 800px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: 1.5rem;
}

.hero__badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero__title {
  color: var(--color-white);
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.hero__subtitle {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  color: var(--color-gray-400);
  line-height: 1.7;
  margin-bottom: 2.5rem;
  max-width: 650px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* --------------------------------------------------------------------------
   Trust Banner
   -------------------------------------------------------------------------- */
.trust-banner {
  background: var(--color-primary-light);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding: 1.5rem 0;
}

.trust-banner__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2rem 3rem;
}

.trust-banner__item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-gray-400);
  font-size: 0.9375rem;
}

.trust-banner__icon {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Features Grid
   -------------------------------------------------------------------------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition-base);
}

.feature-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.feature-card__icon {
  width: 48px;
  height: 48px;
  background: var(--color-green-bg);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  color: var(--color-accent);
}

.feature-card__icon svg {
  width: 24px;
  height: 24px;
}

.feature-card__title {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.feature-card__description {
  color: var(--color-gray-500);
  font-size: 0.9375rem;
  margin-bottom: 0;
}

/* --------------------------------------------------------------------------
   Modes Section
   -------------------------------------------------------------------------- */
.modes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.mode-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: var(--transition-base);
}

.mode-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.2);
}

.mode-card--green { border-left: 4px solid var(--color-green); }
.mode-card--amber { border-left: 4px solid var(--color-amber); }
.mode-card--red { border-left: 4px solid var(--color-red); }

.mode-card__tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 1rem;
}

.mode-card--green .mode-card__tag {
  background: var(--color-green-bg);
  color: var(--color-green);
}

.mode-card--amber .mode-card__tag {
  background: var(--color-amber-bg);
  color: var(--color-amber);
}

.mode-card--red .mode-card__tag {
  background: var(--color-red-bg);
  color: var(--color-red);
}

.mode-card__title {
  font-size: 1.375rem;
  color: var(--color-white);
  margin-bottom: 0.75rem;
}

.mode-card__description {
  color: var(--color-gray-400);
  font-size: 0.9375rem;
  margin-bottom: 1.5rem;
}

.mode-card__uses {
  list-style: none;
}

.mode-card__uses li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-gray-300);
  font-size: 0.875rem;
  padding: 0.375rem 0;
}

.mode-card__uses li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   Security Section
   -------------------------------------------------------------------------- */
.security-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.security-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  gap: 1rem;
  transition: var(--transition-base);
}

.security-card:hover {
  border-color: var(--color-accent);
}

.security-card__icon {
  width: 40px;
  height: 40px;
  background: var(--color-green-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-accent);
}

.security-card__icon svg {
  width: 20px;
  height: 20px;
}

.security-card__content h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.security-card__content p {
  color: var(--color-gray-500);
  font-size: 0.875rem;
  margin: 0;
}

/* --------------------------------------------------------------------------
   Target Audiences
   -------------------------------------------------------------------------- */
.audiences-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1rem;
}

.audience-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-align: center;
  transition: var(--transition-base);
}

.audience-card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--color-accent);
}

.audience-card h4 {
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

.audience-card p {
  color: var(--color-gray-400);
  font-size: 0.875rem;
  margin: 0;
}

/* --------------------------------------------------------------------------
   CTA Section
   -------------------------------------------------------------------------- */
.cta-section {
  background: linear-gradient(135deg, var(--color-accent-dark) 0%, var(--color-accent) 100%);
  text-align: center;
  padding: 5rem 0;
}

.cta-section h2 {
  color: var(--color-white);
  margin-bottom: 0.75rem;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.125rem;
  margin-bottom: 2rem;
}

.cta-section .btn--primary {
  background: var(--color-white);
  color: var(--color-accent-dark);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
}

.cta-section .btn--primary:hover {
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* --------------------------------------------------------------------------
   Contact Section
   -------------------------------------------------------------------------- */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 768px) {
  .contact-wrapper {
    grid-template-columns: 1fr 1.5fr;
  }
}

.contact-info h3 {
  margin-bottom: 1.5rem;
}

.contact-info__company {
  margin-bottom: 1.5rem;
}

.contact-info__company p {
  color: var(--color-gray-600);
  margin-bottom: 0.25rem;
}

.contact-info__item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-gray-600);
  margin-bottom: 0.75rem;
}

.contact-info__item svg {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
}

.contact-form {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-gray-700);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.contact-form .btn {
  width: 100%;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  background: var(--color-primary-dark);
  padding: 3rem 0 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

@media (min-width: 768px) {
  .footer__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer__brand p {
  color: var(--color-gray-500);
  font-size: 0.875rem;
  margin: 0.5rem 0 0;
}

.footer__links {
  display: flex;
  gap: 2rem;
}

.footer__links a {
  color: var(--color-gray-400);
  font-size: 0.875rem;
  transition: var(--transition-fast);
}

.footer__links a:hover {
  color: var(--color-accent);
}

.footer__copyright {
  color: var(--color-gray-600);
  font-size: 0.8125rem;
}

/* --------------------------------------------------------------------------
   Animations
   -------------------------------------------------------------------------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

.animation-delay-100 { animation-delay: 0.1s; }
.animation-delay-200 { animation-delay: 0.2s; }
.animation-delay-300 { animation-delay: 0.3s; }
.animation-delay-400 { animation-delay: 0.4s; }

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-center { text-align: center; }
.text-accent { color: var(--color-accent); }