/* 
 * ROK Elektroanlagen GmbH Website Styles
 * Based on design system specifications
 */

/* ===== CSS Variables / Design Tokens ===== */
:root {
  /* Primary Colors */
  --rok-primary-50: #EDF2F8;
  --rok-primary-100: #DBE5F0;
  --rok-primary-200: #A4BFDA;
  --rok-primary-300: #6D98C5;
  --rok-primary-400: #4272A4;
  --rok-primary-500: #294766;
  --rok-primary-600: #223A54;
  --rok-primary-700: #1A2E41;
  --rok-primary-800: #13212F;
  --rok-primary-900: #0C141D;
  
  /* Neutral Colors */
  --rok-neutral-50: #F9FAFA;
  --rok-neutral-100: #F1F2F3;
  --rok-neutral-200: #E3E5E8;
  --rok-neutral-300: #C8CCD0;
  --rok-neutral-400: #ACB2B9;
  --rok-neutral-500: #757F8A;
  --rok-neutral-600: #5E666E;
  --rok-neutral-700: #464C53;
  --rok-neutral-800: #2F3337;
  --rok-neutral-900: #17191C;
  
  /* Semantic Colors */
  --rok-success: #1F9D55;
  --rok-warning: #F59E0B;
  --rok-danger: #DC2626;
  --rok-info: #2563EB;
  
  /* Role-based Colors */
  --rok-bg: #FFFFFF;
  --rok-bg-muted: #F9FAFA;
  --rok-surface: #FFFFFF;
  --rok-surface-subtle: #F1F2F3;
  --rok-text: #13212F;
  --rok-text-muted: #5E666E;
  --rok-text-on-primary: #FFFFFF;
  --rok-link: #294766;
  --rok-link-hover: #223A54;
  --rok-link-active: #1A2E41;
  --rok-border-subtle: #E3E5E8;
  --rok-border: #C8CCD0;
  --rok-border-strong: #ACB2B9;
  --rok-focus-ring: rgba(109, 152, 197, 0.45);
  --rok-focus-ring-offset: #FFFFFF;
  --rok-selection-bg: #DBE5F0;
  --rok-selection-text: #13212F;
  
  /* Typography */
  --rok-font-base: system-ui, Inter, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --rok-font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
  
  /* Font Sizes */
  --rok-text-h1: clamp(2.2rem, 1.2rem + 2vw, 3.2rem);
  --rok-text-h2: clamp(1.8rem, 1.05rem + 1.3vw, 2.6rem);
  --rok-text-h3: clamp(1.4rem, 0.95rem + 0.8vw, 2.0rem);
  --rok-text-body: 1rem;
  --rok-text-small: 0.875rem;
  
  /* Spacing */
  --rok-space-xs: 4px;
  --rok-space-sm: 8px;
  --rok-space-md: 12px;
  --rok-space-lg: 16px;
  --rok-space-xl: 24px;
  --rok-space-2xl: 32px;
  --rok-space-3xl: 48px;
  
  /* Layout */
  --rok-max-width: 1280px;
  --rok-radius-sm: 8px;
  --rok-radius-md: 12px;
  --rok-radius-lg: 16px;
  --rok-radius-xl: 24px;
  
  /* Shadows */
  --rok-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --rok-shadow-md: 0 6px 16px rgba(19, 33, 47, 0.12);
  --rok-shadow-lg: 0 12px 28px rgba(19, 33, 47, 0.16);
  
  /* Transitions */
  --rok-transition-fast: 160ms;
  --rok-transition-medium: 240ms;
  --rok-transition-slow: 300ms;
  
  /* Gradients */
  --rok-gradient-hero: linear-gradient(135deg, #EDF2F8 0%, #DBE5F0 100%);
  --rok-gradient-cta: linear-gradient(135deg, #4272A4 0%, #294766 100%);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: 80px; /* For sticky header */
}

body {
  font-family: var(--rok-font-base);
  font-weight: 400;
  line-height: 1.6;
  color: var(--rok-text);
  background-color: var(--rok-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--rok-link);
  text-decoration: none;
  transition: color var(--rok-transition-fast) ease;
}

a:hover {
  color: var(--rok-link-hover);
}

a:active {
  color: var(--rok-link-active);
}

a:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--rok-focus-ring);
}

ul, ol {
  list-style-position: inside;
}

/* ===== Accessibility ===== */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--rok-primary-500);
  color: white;
  padding: 8px;
  z-index: 100;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 0;
}

/* Focus styles for keyboard navigation */
:focus-visible {
  outline: 3px solid var(--rok-focus-ring);
  outline-offset: 2px;
}

/* ===== Layout & Container ===== */
.container {
  width: 100%;
  max-width: var(--rok-max-width);
  margin: 0 auto;
  padding: 0 var(--rok-space-lg);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--rok-space-xl);
  }
}

.section {
  padding: var(--rok-space-3xl) 0;
}

.section__header {
  margin-bottom: var(--rok-space-2xl);
  text-align: center;
}

.section__title {
  font-size: var(--rok-text-h2);
  font-weight: 700;
  margin-bottom: var(--rok-space-sm);
  color: var(--rok-primary-500);
}

.section__subtitle {
  font-size: 1.125rem;
  color: var(--rok-text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: inherit;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 0.5em;
}

h1 {
  font-size: var(--rok-text-h1);
}

h2 {
  font-size: var(--rok-text-h2);
}

h3 {
  font-size: var(--rok-text-h3);
}

p {
  margin-bottom: 1rem;
}

.text-small {
  font-size: var(--rok-text-small);
}

/* ===== Header ===== */
.header {
  position: sticky;
  top: 0;
  width: 100%;
  background-color: #FFFFFF;
  box-shadow: var(--rok-shadow-sm);
  z-index: 100;
  padding: var(--rok-space-md) 0;
}

.header__content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  flex-shrink: 0;
}

.logo {
  height: 40px;
  width: auto;
}

.header__nav {
  display: none;
}

.header__nav.is-active {
  display: block;
  position: absolute;
  top: 100%;
  left: 0;
  width: 100%;
  background-color: #FFFFFF;
  box-shadow: var(--rok-shadow-md);
  padding: var(--rok-space-lg);
  z-index: 99;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: var(--rok-space-xl);
}

.header__nav.is-active .nav-list {
  flex-direction: column;
  align-items: center;
  gap: var(--rok-space-lg);
}

.nav-link {
  color: var(--rok-primary-500);
  font-weight: 500;
  position: relative;
  padding: var(--rok-space-xs) 0;
}

.nav-link:hover {
  color: var(--rok-primary-600);
}

.nav-link.active {
  color: var(--rok-primary-700);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--rok-primary-500);
}

.header__contact {
  display: none;
  gap: var(--rok-space-lg);
}

.contact-link {
  display: flex;
  align-items: center;
  gap: var(--rok-space-xs);
  font-size: var(--rok-text-small);
  color: var(--rok-primary-500);
}

.mobile-menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
}

.mobile-menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--rok-primary-500);
  transition: transform 0.3s ease;
}

@media (min-width: 992px) {
  .header__nav {
    display: block;
  }
  
  .header__contact {
    display: flex;
  }
  
  .mobile-menu-toggle {
    display: none;
  }
}

/* ===== Hero Section with Slideshow ===== */
.hero {
  position: relative;
  padding: var(--rok-space-3xl) 0;
  min-height: 600px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

/* Slideshow Background */
.hero__slideshow {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
}

.hero__slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
}

.hero__slide.active {
  opacity: 1;
}

/* Dark overlay for better text readability */
.hero__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(19, 33, 47, 0.6); /* Dark blue with opacity */
  z-index: -1;
}

.hero__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero__headline {
  color: white;
  margin-bottom: var(--rok-space-md);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero__subcopy {
  font-size: 1.25rem;
  color: white;
  margin-bottom: var(--rok-space-xl);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.hero__quick-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--rok-space-md);
  margin-bottom: var(--rok-space-2xl);
}

.quick-link {
  display: flex;
  align-items: center;
  gap: var(--rok-space-xs);
  padding: var(--rok-space-sm) var(--rok-space-md);
  background-color: rgba(255, 255, 255, 0.85);
  border-radius: var(--rok-radius-md);
  font-weight: 500;
  transition: all var(--rok-transition-fast) ease;
  color: var(--rok-primary-700);
}

.quick-link:hover {
  background-color: rgba(255, 255, 255, 0.95);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.hero__cta {
  margin-top: var(--rok-space-lg);
}

/* Slideshow Navigation Dots */
.hero__nav {
  display: flex;
  justify-content: center;
  gap: var(--rok-space-sm);
  margin-top: var(--rok-space-xl);
}

.hero__nav-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.5);
  border: none;
  cursor: pointer;
  transition: all var(--rok-transition-fast) ease;
}

.hero__nav-dot:hover {
  background-color: rgba(255, 255, 255, 0.8);
}

.hero__nav-dot.active {
  background-color: white;
  transform: scale(1.2);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--rok-space-sm);
  border-radius: var(--rok-radius-md);
  font-weight: 600;
  padding: 0.75rem 1.25rem;
  cursor: pointer;
  transition: background-color var(--rok-transition-fast), box-shadow var(--rok-transition-fast), transform 80ms;
  border: none;
  text-align: center;
  text-decoration: none;
}

.btn:focus-visible {
  outline: none;
}

.btn--primary {
  background-color: var(--rok-primary-500);
  color: #FFFFFF;
}

.btn--primary:hover {
  background-color: var(--rok-primary-600);
  color: #FFFFFF;
}

.btn--primary:active {
  background-color: var(--rok-primary-700);
  transform: translateY(1px);
}

.btn--primary:focus-visible {
  box-shadow: 0 0 0 3px rgba(109, 152, 197, 0.45);
}

.btn--secondary {
  background-color: var(--rok-primary-50);
  color: var(--rok-primary-800);
  border: 1px solid var(--rok-primary-300);
}

.btn--secondary:hover {
  background-color: var(--rok-primary-100);
  color: var(--rok-primary-800);
}

.btn--secondary:active {
  background-color: var(--rok-primary-200);
  transform: translateY(1px);
}

.btn--ghost {
  background-color: transparent;
  color: var(--rok-primary-500);
}

.btn--ghost:hover {
  background-color: rgba(219, 229, 240, 0.7);
  color: var(--rok-primary-600);
}

.btn--ghost:active {
  background-color: rgba(164, 191, 218, 0.7);
  color: var(--rok-primary-700);
}

.btn--danger {
  background-color: var(--rok-danger);
  color: #FFFFFF;
}

.btn--danger:hover {
  background-color: #B91C1C;
  color: #FFFFFF;
}

.btn--danger:active {
  background-color: #991B1B;
}

.btn--large {
  padding: 0.875rem 1.5rem;
  font-size: 1.125rem;
}

.icon {
  flex-shrink: 0;
}

/* ===== Services Section ===== */
.services__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--rok-space-xl);
}

@media (min-width: 768px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .services__grid {
    grid-template-columns: repeat(3, 1fr);
    justify-content: center;
    margin: 0 auto;
  }
}

.service-card {
  background-color: var(--rok-surface);
  border: 1px solid var(--rok-border-subtle);
  border-radius: var(--rok-radius-lg);
  padding: var(--rok-space-xl);
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: transform var(--rok-transition-medium), box-shadow var(--rok-transition-medium);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--rok-shadow-md);
}

.service-card__icon {
  color: var(--rok-primary-500);
  margin-bottom: var(--rok-space-md);
}

.service-card__title {
  margin-bottom: var(--rok-space-md);
  color: var(--rok-primary-600);
}

.service-card__description {
  color: var(--rok-text-muted);
  margin-bottom: var(--rok-space-lg);
}

.service-card .btn {
  margin-top: auto;
}

/* ===== References Section ===== */
.references {
  background-color: var(--rok-bg-muted);
}

.references__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--rok-space-xl);
}

@media (min-width: 768px) {
  .references__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .references__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.reference-card {
  background-color: var(--rok-surface);
  border-radius: var(--rok-radius-lg);
  overflow: hidden;
  box-shadow: var(--rok-shadow-sm);
  transition: box-shadow var(--rok-transition-medium);
}

.reference-card:hover {
  box-shadow: var(--rok-shadow-md);
}

.reference-card__image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.reference-card__content {
  padding: var(--rok-space-lg);
}

.reference-card__title {
  margin-bottom: var(--rok-space-sm);
  color: var(--rok-primary-600);
}

.reference-card__description {
  color: var(--rok-text-muted);
  margin-bottom: var(--rok-space-md);
}

.reference-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--rok-space-xs);
}

/* ===== Badges ===== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.5rem;
  border-radius: var(--rok-radius-sm);
  font-size: var(--rok-text-small);
  font-weight: 500;
}

.badge--primary {
  background-color: var(--rok-primary-100);
  color: var(--rok-primary-800);
}

.badge--neutral {
  background-color: var(--rok-neutral-100);
  color: var(--rok-neutral-800);
}

.badge--success {
  background-color: rgba(31, 157, 85, 0.12);
  color: var(--rok-success);
}

.badge--warning {
  background-color: rgba(245, 158, 11, 0.14);
  color: #8A5A00;
}

.badge--danger {
  background-color: rgba(220, 38, 38, 0.12);
  color: #B91C1C;
}

/* ===== About Section ===== */
.about__content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--rok-space-2xl);
}

@media (min-width: 992px) {
  .about__content {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

.about__description {
  margin-bottom: var(--rok-space-xl);
}

.about__stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--rok-space-xl);
  margin-bottom: var(--rok-space-xl);
}

.stat {
  flex: 1;
  min-width: 100px;
}

.stat__number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--rok-primary-500);
  line-height: 1;
  margin-bottom: var(--rok-space-xs);
}

.stat__label {
  color: var(--rok-text-muted);
  font-size: var(--rok-text-small);
}

.about__photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--rok-radius-lg);
}

/* ===== Career Section ===== */
.career {
  background-color: var(--rok-bg-muted);
}

.career__intro {
  max-width: 800px;
  margin: 0 auto var(--rok-space-2xl);
  text-align: center;
}

.career__benefits {
  max-width: 600px;
  margin: 0 auto var(--rok-space-2xl);
}

.career__benefits h3 {
  margin-bottom: var(--rok-space-md);
  color: var(--rok-primary-600);
}

.benefits-list {
  list-style-type: none;
}

.benefits-list li {
  padding: var(--rok-space-sm) 0;
  padding-left: var(--rok-space-xl);
  position: relative;
}

.benefits-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--rok-primary-500);
  font-weight: bold;
}

.contact-card {
  background-color: var(--rok-surface);
  border-radius: var(--rok-radius-lg);
  padding: var(--rok-space-xl);
  box-shadow: var(--rok-shadow-md);
  text-align: center;
  max-width: 500px;
  margin: 0 auto;
}

.contact-card h4 {
  color: var(--rok-primary-600);
  margin-bottom: var(--rok-space-md);
}

.contact-card p {
  margin-bottom: var(--rok-space-lg);
}

.contact-card__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--rok-space-md);
}

/* ===== Contact Section ===== */
.contact__content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--rok-space-2xl);
}

@media (min-width: 992px) {
  .contact__content {
    grid-template-columns: 1fr 2fr;
  }
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: var(--rok-space-xl);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--rok-space-md);
}

.contact-item__icon {
  color: var(--rok-primary-500);
  flex-shrink: 0;
}

.contact-item__content h4 {
  color: var(--rok-primary-600);
  margin-bottom: var(--rok-space-xs);
}

/* ===== Form Styles ===== */
.form {
  display: flex;
  flex-direction: column;
  gap: var(--rok-space-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--rok-space-xs);
}

.form-label {
  font-weight: 500;
  color: var(--rok-primary-700);
}

.form-input {
  padding: var(--rok-space-md);
  border: 1px solid var(--rok-border);
  border-radius: var(--rok-radius-md);
  background-color: var(--rok-surface);
  color: var(--rok-text);
  font-family: inherit;
  font-size: inherit;
  transition: border-color var(--rok-transition-fast);
}

.form-input::placeholder {
  color: var(--rok-text-muted);
}

.form-input:focus {
  outline: none;
  border-color: var(--rok-primary-300);
  box-shadow: 0 0 0 3px rgba(109, 152, 197, 0.35);
}

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

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: var(--rok-space-sm);
  cursor: pointer;
  font-size: var(--rok-text-small);
}

.checkbox-label input[type="checkbox"] {
  margin-top: 0.25rem;
}

.link {
  color: var(--rok-primary-500);
  text-decoration: underline;
}

.link:hover {
  color: var(--rok-primary-600);
}

/* ===== Map Section ===== */
.map__container {
  width: 100%;
  height: 400px;
  border-radius: var(--rok-radius-lg);
  overflow: hidden;
  margin-bottom: var(--rok-space-lg);
  box-shadow: var(--rok-shadow-md);
}

.map__info {
  text-align: center;
  margin-top: var(--rok-space-md);
  padding: var(--rok-space-md);
  background-color: var(--rok-surface);
  border-radius: var(--rok-radius-md);
  display: inline-block;
  margin: 0 auto;
}

.map__info p {
  margin: 0;
  font-weight: 500;
}

.map__info p {
  margin: 0;
  font-weight: 500;
}

/* Map Info Window Styling */
.map-info-window h3 {
  color: var(--rok-primary-700);
  margin-top: 0;
  margin-bottom: 8px;
  font-size: 1.1rem;
}

.map-info-window p {
  margin: 5px 0;
}

.map-navigation {
  margin-top: 12px !important;
  text-align: center;
}

.map-navigation a {
  display: inline-block;
  background-color: var(--rok-primary-600);
  color: white;
  padding: 6px 12px;
  border-radius: var(--rok-radius-sm);
  text-decoration: none;
  transition: background-color 0.3s ease;
}

.map-navigation a:hover {
  background-color: var(--rok-primary-700);
}

/* ===== Footer ===== */
.footer {
  background-color: var(--rok-primary-900);
  color: var(--rok-neutral-100);
  padding: var(--rok-space-3xl) 0 var(--rok-space-xl);
  margin-top: var(--rok-space-3xl);
}

.footer__content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--rok-space-2xl);
  margin-bottom: var(--rok-space-2xl);
}

@media (min-width: 768px) {
  .footer__content {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer__title {
  color: var(--rok-primary-200);
  margin-bottom: var(--rok-space-md);
}

.footer__subtitle {
  color: var(--rok-primary-300);
  margin-bottom: var(--rok-space-md);
  font-size: 1rem;
}

.footer__address {
  font-style: normal;
  line-height: 1.6;
}

.footer__address a,
.footer__link {
  color: var(--rok-primary-200);
  transition: color var(--rok-transition-fast);
}

.footer__address a:hover,
.footer__link:hover {
  color: var(--rok-primary-100);
}

.footer__list {
  list-style: none;
}

.footer__list li {
  margin-bottom: var(--rok-space-sm);
}

.footer__bottom {
  padding-top: var(--rok-space-xl);
  border-top: 1px solid var(--rok-primary-800);
  text-align: center;
}

.footer__copyright {
  color: var(--rok-neutral-400);
  font-size: var(--rok-text-small);
}

/* ===== Responsive Adjustments ===== */
@media (max-width: 767px) {
  .section {
    padding: var(--rok-space-2xl) 0;
  }
  
  .hero {
    padding: var(--rok-space-2xl) 0;
  }
  
  .hero__headline {
    font-size: 2rem;
  }
  
  .hero__subcopy {
    font-size: 1.1rem;
  }
  
  .section__title {
    font-size: 1.8rem;
  }
}

/* ===== Utility Classes ===== */
.text-center {
  text-align: center;
}

.mt-auto {
  margin-top: auto;
}

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