/* ==========================================================================
   zirnova gmbh - Stylesheet
   ========================================================================== */

/* --- :root (Custom Properties) --- */
:root {
  /* Colors */
  --color-primary: #000099; /* Markenblau */
  --color-primary-dark: #00006B; /* Hover */
  --color-primary-light: #E6E6F5; /* Akzent Hintergrund */
  --color-bg-main: #FAFAF7; /* Warm Off-White */
  --color-bg-sec: #F2F2EF; /* Alternativer Hintergrund */
  --color-text-main: #0A0A1F; /* Sehr dunkles Blau-Schwarz */
  --color-text-sec: #5C5C66; /* Sekundärer Text */
  --color-border: #E5E3DD; /* Trennlinien */
  --color-white: #ffffff;
  
  /* Typography */
  --font-heading: 'LT Saeada', 'Inter', system-ui, -apple-system, 'Helvetica Neue', Arial, sans-serif;
  --font-body: 'LT Saeada', 'Inter', system-ui, -apple-system, 'Helvetica Neue', Arial, sans-serif;
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  --space-xxl: 8rem;

  /* Layout */
  --max-width: 1200px;
  --header-height: 80px;
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* 
 * TODO für Kunde: Webfont einbinden
 * Die Lizenz für 'LT Saeada' muss durch den Kunden bereitgestellt werden.
 * Dateien (.woff2) in /assets/fonts/LTSaeada/ ablegen und Code entkommentieren.
 */
/* 
@font-face {
  font-family: 'LT Saeada';
  src: url('./assets/fonts/LTSaeada/LTSaeada-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'LT Saeada';
  src: url('./assets/fonts/LTSaeada/LTSaeada-Medium.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
*/

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--color-text-main);
  background-color: var(--color-bg-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
  list-style: none;
}

button, input, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: none;
  background: none;
}

button {
  cursor: pointer;
}

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

/* Focus States for Accessibility */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
  color: var(--color-text-main);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
  font-size: clamp(2rem, 3vw, 2.5rem);
  margin-bottom: var(--space-md);
}

h3 {
  font-size: 1.5rem;
}

p {
  margin-bottom: var(--space-sm);
}

.text-sec {
  color: var(--color-text-sec);
}

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

section {
  padding: var(--space-xl) 0;
}

.section-bg-sec {
  background-color: var(--color-bg-sec);
}

.grid {
  display: grid;
  gap: var(--space-md);
}

/* --- Components --- */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.6rem;
  border-radius: var(--border-radius-sm);
  font-weight: 500;
  transition: background-color var(--transition-fast), color var(--transition-fast);
  text-align: center;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.btn-primary:hover, .btn-primary:focus-visible {
  background-color: var(--color-primary-dark);
}

/* Cards */
.card {
  background-color: var(--color-bg-main);
  border: 1px solid var(--color-border);
  padding: var(--space-md);
  border-radius: var(--border-radius-md);
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.card:hover {
  background-color: var(--color-primary-light);
  border-color: var(--color-primary);
}

.card-icon {
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
  width: 32px;
  height: 32px;
}

/* --- Sections --- */

/* Header & Navigation */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 100;
  transition: background-color var(--transition-fast), border-bottom var(--transition-fast);
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  background-color: rgba(250, 250, 247, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}

.logo {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 1.5rem;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

/* Desktop Nav */
.main-nav ul {
  display: flex;
  gap: var(--space-md);
}

.main-nav a {
  font-size: 1rem;
  color: var(--color-text-main);
  font-weight: 500;
  position: relative;
}

.site-header:not(.is-scrolled) .main-nav a,
.site-header:not(.is-scrolled) .nav-toggle,
.site-header:not(.is-scrolled) .logo {
  /* In Hero Section mit dunklem Overlay weiss anzeigen */
  color: var(--color-white);
}

.site-header.is-scrolled .logo {
  color: var(--color-primary);
}

.site-header.is-scrolled .main-nav a,
.site-header.is-scrolled .nav-toggle {
  color: var(--color-text-main);
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--color-primary) !important;
}

/* Mobile Nav Toggle */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  position: relative;
  z-index: 101;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: currentColor;
  margin: 6px auto;
  transition: transform 0.3s, opacity 0.3s;
}

.nav-toggle.is-active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav-toggle.is-active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  background-color: #1a1a1a; /* Fallback */
  color: var(--color-white);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, rgba(10, 10, 31, 0.8), rgba(10, 10, 31, 0.4));
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 var(--space-sm);
}

@media (min-width: 768px) {
    .hero .container {
        margin-left: 0; /* Align left on desktop */
    }
}


.hero h1, .hero p, .hero span {
  color: var(--color-white);
}

.hero-subtitle {
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: var(--space-xs);
  display: block;
  color: #E6E6F5;
}

.hero p {
  font-size: 1.125rem;
  opacity: 0.9;
  margin-bottom: var(--space-md);
  max-width: 600px;
}

/* About / Positionierung */
.about {
  padding: var(--space-xl) 0;
  text-align: center;
}

.about .container {
  max-width: 800px;
}

.about p {
  font-size: 1.25rem;
  line-height: 1.7;
}

/* Leistungen */
.leistungen-grid {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.leistungen .card h3 {
  margin-bottom: var(--space-xs);
}

/* Kunden & Partner */
.logos-grid {
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg) var(--space-md);
  align-items: center;
  justify-items: center;
  margin-top: var(--space-lg);
}

@media (min-width: 768px) {
  .logos-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.logo-item {
  width: 100%;
  max-width: 160px;
  height: 80px;
  object-fit: contain;
  filter: grayscale(100%) opacity(60%);
  transition: filter var(--transition-smooth);
}

.logo-item:hover {
  filter: grayscale(0%) opacity(100%);
}

/* Stimmen (Testimonials) */
.testimonials-grid {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.testimonial {
  background-color: var(--color-bg-main);
  padding: var(--space-md);
  border-radius: var(--border-radius-md);
  position: relative;
}

.testimonial::before {
  content: '"';
  position: absolute;
  top: 1rem;
  left: 1rem;
  color: var(--color-primary);
  font-size: 5rem;
  font-family: Georgia, serif;
  line-height: 1;
  opacity: 0.1;
}

.testimonial-text {
  font-style: italic;
  margin-bottom: var(--space-sm);
  position: relative;
  z-index: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.author-img {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  background-color: var(--color-border);
}

.author-info h4 {
  margin-bottom: 0;
  font-size: 1rem;
}

.author-info span {
  font-size: 0.875rem;
  color: var(--color-text-sec);
}

/* Kontakt */
.kontakt-grid {
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

.kontakt-info h3 {
  margin-bottom: var(--space-sm);
}

.kontakt-details p {
  margin-bottom: 0.5rem;
}

.kontakt-link {
  display: inline-block;
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.kontakt-link:hover {
  color: var(--color-primary-dark);
}

.kontakt-mobile-targets {
  display: none;
}

.form-group {
  margin-bottom: var(--space-sm);
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--color-text-main);
}

.form-control {
  width: 100%;
  padding: 0.8rem;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  background-color: var(--color-bg-main);
  transition: border-color var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
}

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

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-sec);
}

.form-checkbox input {
  margin-top: 0.2rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-md) 0;
  background-color: var(--color-bg-main);
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: var(--color-text-sec);
}

.footer-links {
  display: flex;
  gap: var(--space-sm);
}

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

/* Simple Document Container for Impressum/Datenschutz */
.document-content {
  padding-top: calc(var(--header-height) + var(--space-lg));
  padding-bottom: var(--space-xl);
  max-width: 800px;
}

.document-content h1 {
  margin-bottom: var(--space-md);
}

.document-content h2 {
  font-size: 1.5rem;
  margin-top: var(--space-md);
  margin-bottom: var(--space-xs);
}

/* Reveal Animation */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Media Queries --- */

/* Tablet (768px) */
@media (max-width: 768px) {
  :root {
    --space-xl: 4rem;
  }
  
  .kontakt-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .footer-grid {
    flex-direction: column;
    text-align: center;
  }
}

/* Mobile */
@media (max-width: 850px) {
  .nav-toggle {
    display: block;
  }

  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background-color: var(--color-bg-main);
    padding: var(--space-md);
    transform: translateX(100%);
    transition: transform var(--transition-smooth);
    overflow-y: auto;
  }
  
  /* Um sicherzustellen dass das Menu über weiss sichtbar ist */
  .site-header.is-menu-open {
     background-color: rgba(250, 250, 247, 1);
  }
  .site-header.is-menu-open .nav-toggle span {
      background-color: var(--color-text-main);
  }
  .site-header.is-menu-open .logo {
      color: var(--color-primary);
  }

  .main-nav.is-open {
    transform: translateX(0);
  }

  .main-nav ul {
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
  }

  .main-nav a {
    font-size: 1.5rem;
    color: var(--color-text-main) !important;
  }
  
  .kontakt-desktop-info {
    display: none;
  }
  
  .kontakt-mobile-targets {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }
  
  .mobile-target {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem;
    background-color: var(--color-bg-sec);
    border-radius: var(--border-radius-sm);
    min-height: 44px;
    font-weight: 500;
  }
}