/* Basic reset for header */
.site-header {
  background: #fff;
  border-bottom: 1px solid #e6e6e6;
  position: relative; /* keep header above hero video */
  z-index: 200;
}

/* Typography */
html,
body {
  font-family: 'Montserrat', system-ui, -apple-system, 'Segoe UI', Roboto,
    'Helvetica Neue', Arial;
  color: #222;
  font-size: 16px;
  line-height: 1.4;
  margin: 0;
}

:root {
  --color-text: #222;
  --color-muted: #444;
  --color-bg: #fff;
  --color-primary: #007acc;
  --color-primary-dark: #005fa3;
  --color-border: #e6e6e6;
  --color-panel-bg: #f9fbfd;
  --radius-pill: 60px;
  --radius-sm: 6px;
  --container-width: 1100px;
}

h1,
h2,
h3,
h4,
h5 {
  font-family: 'Roboto Slab', 'Montserrat', serif;
  color: #111;
  margin: 0 0 12px 0;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 16px;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: auto;
}

.logo img {
  height: 80px;
  width: auto;
  display: block;
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
  margin: 0;
  padding: 0;
}

.nav-link {
  text-decoration: none;
  color: var(--color-text);
  font-weight: 600;
}

.nav-link:hover,
.nav-link:focus {
  color: var(--color-primary);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  font-size: 22px;
}

/* Header phone (used in some locale headers) */
.header-phone {
  margin-left: 12px;
}

.header-phone .phone {
  text-decoration: none;
  color: #fff;
  background: var(--color-primary);
  padding: 10px 16px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  border: 1px solid var(--color-primary);
  display: inline-block;
}

.header-phone .phone:hover,
.header-phone .phone:focus {
  background: var(--color-primary-dark);
  outline: none;
}

@media (max-width: 720px) {
  .header-phone .phone {
    padding: 8px 12px;
    font-size: 14px;
  }
}

.lang-switch {
  position: relative;
  display: flex;
  gap: 6px;
  align-items: center;
}

/* Language dropdown */
.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  border: 1px solid #ccc;
  border-radius: 12px;
  background: transparent;
  font-weight: 700;
  cursor: pointer;
  color: var(--color-text);
  text-decoration: none;
  transition: all 0.2s ease;
}

.lang-toggle:hover,
.lang-toggle:focus {
  background: var(--color-panel-bg);
  border-color: var(--color-primary);
}

.lang-toggle[aria-expanded='true'] {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.12);
  min-width: 120px;
  z-index: 100;
  display: block;
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.lang-dropdown[aria-hidden='true'] {
  display: none;
  opacity: 0;
  transform: translateY(-8px);
}

.lang-dropdown-list {
  list-style: none;
  margin: 0;
  padding: 8px 0;
}

.lang-dropdown-list li {
  margin: 0;
}

.lang-dropdown-link {
  display: block;
  padding: 8px 16px;
  color: var(--color-text);
  text-decoration: none;
  font-weight: 600;
  transition: background 0.2s ease;
}

.lang-dropdown-link:hover,
.lang-dropdown-link:focus {
  background: var(--color-panel-bg);
  outline: none;
}

.lang-dropdown-link[aria-current='true'] {
  background: var(--color-primary);
  color: #fff;
}

/* utility */
.visually-hidden {
  position: absolute !important;
  height: 1px;
  width: 1px;
  overflow: hidden;
  clip: rect(1px, 1px, 1px, 1px);
  white-space: nowrap; /* added line */
}

/* Header search */
.header-search {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 12px;
}
.header-search input[type='search'] {
  padding: 8px 10px;
  border-radius: 20px;
  border: 1px solid #ccc;
  width: 200px;
}
.header-search button {
  color: var(--color-primary);
  border: none;
  padding: 8px 10px;
  border-radius: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
}
.header-search button img {
  width: 32px;
  height: 32px;
  display: block;
}

/* Shared form/input styles */
input[type='search'],
input[type='text'],
input[type='email'],
textarea {
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid #ccc;
  box-sizing: border-box;
  max-width: 100%;
  resize: none;
}

@media (max-width: 720px) {
  .header-search {
    display: none;
  }
}

/* Hero section */
.hero {
  min-height: 80vh;
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
}

.hero-video {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 177.77vh;
  height: 56.25vw;
  min-width: 100%;
  min-height: 100%;
  transform: translate(-50%, -50%);
  object-fit: cover;
  z-index: 0;
  pointer-events: none;
  border: none;
}

.hero-overlay {
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-card {
  /* remove white panel: keep transparent overlay with centered text */
  background: transparent;
  padding: 12px 20px;
  border-radius: 0;
  max-width: 900px;
  color: #fff;
  text-align: center;
}

.hero-card h1 {
  margin-top: 0;
  font-size: 42px;
  color: #fff;
  font-style: italic;
  font-weight: 700;
  line-height: 1.05;
  text-align: center;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
}

.hero-card p {
  margin: 12px 0 20px 0;
  color: rgba(255, 255, 255, 0.92);
}

.btn {
  padding: 10px 14px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  border: 1px solid #ccc;
  background: #f5f5f5;
}
.btn.primary,
.btn.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 60;
}
.modal[aria-hidden='false'] {
  display: block;
}
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
}
.modal-dialog {
  position: relative;
  max-width: 540px;
  margin: 20vh auto;
  background: #fff;
  border-radius: 8px;
  padding: 20px;
  z-index: 70;
}
.modal-close {
  position: absolute;
  right: 8px;
  top: 8px;
  background: transparent;
  border: none;
  font-size: 22px;
  cursor: pointer;
}
.modal-dialog label {
  display: block;
  margin: 10px 0px 6px;
  font-weight: 600;
}
.modal-dialog input,
.modal-dialog textarea {
  /* use shared form-control styling; width will adapt */
  width: 100%;
  padding: 8px 10px;
  border: 1px solid #ccc;
  border-radius: var(--radius-sm);
  box-sizing: border-box;
}
.form-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 12px;
}

/* Responsive: collapse nav on small screens */
@media (max-width: 720px) {
  .main-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 72px;
    background: #fff;
    border-bottom: 1px solid #e6e6e6;
    display: none;
    padding: 12px 16px;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 12px;
  }
  .nav-toggle {
    display: block;
  }
  .main-nav[aria-hidden='false'] {
    display: block;
  }
  .header-phone {
    display: none;
  }
  .hero-card {
    margin: 16px;
    padding: 14px;
  }
  .hero-card h1 {
    font-size: 24px;
  }
}

/* Small helper for focus outlines */
a:focus {
  outline: 3px solid rgba(0, 122, 204, 0.2);
  outline-offset: 2px;
}

/* About / Features section */
.about-section {
  padding: 56px 0;
  background: #f9fbfd;
}
.section-title {
  font-size: 28px;
  text-align: center;
  margin-bottom: 12px;
  font-weight: 700;
}

/* Services section */
.services-section {
  padding: 56px 0;
  background: #fff;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}

.service-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12);
}

.service-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-panel-bg);
  border-radius: 50%;
  padding: 12px;
}

.service-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.service-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text);
  text-align: center;
  margin: 0 0 8px 0;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-description {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-muted);
  text-align: center;
  flex-grow: 1;
  margin: 0 0 16px 0;
}

.service-list {
  list-style: none;
  padding: 0;
  margin: 0;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.service-list li {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-muted);
}

.service-list li strong {
  color: var(--color-text);
  font-weight: 600;
  display: block;
  margin-bottom: 2px;
}

.service-btn {
  background: var(--color-primary);
  color: #fff;
  border: none;
  text-decoration: none;
  font-weight: 600;
  text-align: center;
  display: inline-block;
  transition: background 0.3s ease;
}

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

/* Additional services */
.additional-services {
  margin-top: 48px;
  padding: 32px;
  background: var(--color-panel-bg);
  border-radius: 12px;
  border-left: 4px solid var(--color-primary);
}

.additional-services-title {
  font-size: 22px;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 20px 0;
}

.additional-services-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.additional-services-list li {
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-muted);
  padding-left: 28px;
  position: relative;
}

.additional-services-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 18px;
}

.additional-services-list li strong {
  color: var(--color-text);
  font-weight: 600;
}

/* Responsive design for services */
@media (max-width: 980px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
}

@media (max-width: 600px) {
  .services-section {
    padding: 36px 0;
  }

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

  .service-title {
    font-size: 18px;
    min-height: auto;
  }

  .additional-services {
    padding: 20px;
    margin-top: 32px;
  }

  .additional-services-title {
    font-size: 18px;
  }

  .additional-services-list li {
    font-size: 14px;
  }
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 12px;
}
.card {
  background: #fff;
  border-radius: 8px;
  padding: 18px;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.06);
}
.card-icon {
  font-size: 32px;
  margin-bottom: 8px;
}
.card-icon img {
  width: 80px;
  height: 80px;
  object-fit: contain;
  display: block;
  margin: 0 auto 8px;
}
.card-title {
  font-size: 18px;
  margin-bottom: 8px;
}
.card p {
  color: #444;
  font-size: 14px;
  line-height: 1.45;
}

@media (max-width: 980px) {
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .cards-grid {
    grid-template-columns: 1fr;
  }
  .about-section {
    padding: 36px 0;
  }
  .section-title {
    font-size: 22px;
  }
}

/* Service detail page styles */
.service-detail-page {
  padding-top: 0;
}

.service-hero {
  background: linear-gradient(
    135deg,
    var(--color-primary) 0%,
    var(--color-primary-dark) 100%
  );
  color: #fff;
  padding: 48px 0;
}

.back-link {
  display: inline-flex;
  align-items: center;
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  font-size: 14px;
  margin-bottom: 20px;
  transition: color 0.3s ease;
}

.back-link:hover {
  color: #fff;
}

.service-detail-title {
  font-size: 36px;
  margin: 0 0 16px 0;
  color: #fff;
}

.service-detail-intro {
  font-size: 18px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.95);
  max-width: 800px;
}

.service-content {
  padding: 56px 0;
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
}

.main-content h2 {
  font-size: 28px;
  margin: 0 0 20px 0;
  color: var(--color-text);
}

.main-content h3 {
  font-size: 22px;
  margin: 32px 0 16px 0;
  color: var(--color-text);
}

.main-content h4 {
  font-size: 18px;
  margin: 0 0 8px 0;
}

.main-content p {
  line-height: 1.7;
  color: var(--color-muted);
  margin-bottom: 16px;
}

.process-list,
.features-list {
  list-style: none;
  padding: 0;
  margin: 20px 0;
}

.process-list li,
.features-list li {
  padding: 12px 0 12px 32px;
  position: relative;
  line-height: 1.6;
  color: var(--color-muted);
  border-bottom: 1px solid var(--color-border);
}

.process-list li:last-child,
.features-list li:last-child {
  border-bottom: none;
}

.process-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 20px;
}

.features-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 18px;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin: 24px 0;
}

.advantage-card {
  background: var(--color-panel-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 20px;
}

.advantage-card h4 {
  font-size: 18px;
  margin: 0 0 8px 0;
  color: var(--color-text);
}

.advantage-card p {
  font-size: 14px;
  margin: 0;
  color: var(--color-muted);
}

.cta-section {
  background: var(--color-panel-bg);
  border-left: 4px solid var(--color-primary);
  padding: 32px;
  border-radius: 8px;
  margin-top: 40px;
  text-align: center;
}

.cta-section h3 {
  margin-top: 0;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sidebar-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.06);
}

.sidebar-card h3 {
  font-size: 18px;
  margin: 0 0 16px 0;
  color: var(--color-text);
}

.tech-specs,
.docs-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.tech-specs li,
.docs-list li {
  padding: 8px 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-muted);
  border-bottom: 1px solid var(--color-border);
}

.tech-specs li:last-child,
.docs-list li:last-child {
  border-bottom: none;
}

.sidebar-card p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-muted);
  margin: 0 0 12px 0;
}

.sidebar-card p:last-child {
  margin-bottom: 0;
}

/* Responsive for service detail page */
@media (max-width: 980px) {
  .content-grid {
    grid-template-columns: 1fr;
  }

  .sidebar {
    order: 2;
  }

  .advantages-grid {
    grid-template-columns: 1fr;
  }

  .service-detail-title {
    font-size: 28px;
  }

  .service-detail-intro {
    font-size: 16px;
  }
}

@media (max-width: 600px) {
  .service-hero {
    padding: 32px 0;
  }

  .service-content {
    padding: 36px 0;
  }

  .service-detail-title {
    font-size: 24px;
  }

  .main-content h2 {
    font-size: 22px;
  }

  .main-content h3 {
    font-size: 18px;
  }

  .cta-section {
    padding: 20px;
  }
}

/* Footer */
.site-footer {
  background: var(--color-primary);
  color: #fff;
  padding: 48px 0 0 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 32px;
  align-items: start;
}

.footer-logo img {
  height: 140px;
  width: auto;
  display: block;
  margin-bottom: 12px;
  /* Don't force color inversion here; use the original logo file */
  filter: none;
  background: transparent;
}

.footer-logo p {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
}

.footer-contacts h3,
.footer-form h3 {
  margin: 0 0 16px 0;
  font-size: 18px;
  color: #fff;
  font-weight: 700;
}

.footer-contacts address {
  font-style: normal;
  line-height: 1.6;
  margin-bottom: 12px;
  color: rgba(255, 255, 255, 0.9);
}

.footer-contacts p {
  margin: 8px 0;
  color: rgba(255, 255, 255, 0.9);
}

.footer-contacts a {
  color: #fff;
  text-decoration: none;
  font-weight: 600;
}

.footer-contacts a:hover,
.footer-contacts a:focus {
  text-decoration: underline;
}

.footer-form form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-form input,
.footer-form textarea {
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-family: inherit;
}

.footer-form input::placeholder,
.footer-form textarea::placeholder {
  color: rgba(255, 255, 255, 0.7);
}

.footer-form input:focus,
.footer-form textarea:focus {
  outline: none;
  border-color: #fff;
  background: rgba(255, 255, 255, 0.15);
}

.footer-form button {
  background: #fff;
  color: var(--color-primary);
  border: 1px solid #fff;
  font-weight: 700;
  margin-top: 4px;
}

.footer-form button:hover,
.footer-form button:focus {
  background: rgba(255, 255, 255, 0.9);
  color: var(--color-primary-dark);
}

.footer-bottom {
  margin-top: 40px;
  padding: 20px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  text-align: center;
}

.footer-bottom p {
  margin: 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
}

@media (max-width: 980px) {
  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .footer-logo {
    grid-column: 1 / -1;
    text-align: center;
  }

  .footer-logo img {
    margin: 0 auto 12px;
  }
}

@media (max-width: 600px) {
  .footer-inner {
    grid-template-columns: 1fr;
  }

  .site-footer {
    padding: 32px 0 0 0;
  }

  .footer-logo {
    grid-column: auto;
  }
}

/* Warehouse page styles */
.warehouse-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px 0;
}

/* Process gallery styles */
.process-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin: 32px 0 40px 0;
}

.gallery-item {
  background: var(--color-panel-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.gallery-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.12);
}

.gallery-item img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  display: block;
}

.gallery-caption {
  padding: 16px;
  text-align: center;
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
  font-size: 15px;
}

.engine-block {
  background: var(--color-panel-bg);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
}

.engine-block h2 {
  color: var(--color-primary);
  font-size: 24px;
  margin: 0 0 16px 0;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-border);
}

.parts-list {
  margin: 0;
  padding-left: 24px;
  line-height: 1.8;
}

.parts-list li {
  padding: 6px 0;
  color: var(--color-text);
}

.cta-block {
  background: linear-gradient(
    135deg,
    var(--color-primary),
    var(--color-primary-dark)
  );
  color: #fff;
  border-radius: 12px;
  padding: 32px;
  text-align: center;
  margin-top: 32px;
  box-shadow: 0 4px 16px rgba(0, 122, 204, 0.2);
}

.cta-block h3 {
  color: #fff;
  font-size: 26px;
  margin: 0 0 12px 0;
}

.cta-block p {
  margin: 0 0 20px 0;
  font-size: 16px;
  line-height: 1.6;
  opacity: 0.95;
}

.cta-block .btn {
  background: #fff;
  color: var(--color-primary);
  font-weight: 700;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  border: 2px solid #fff;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 16px;
}

.cta-block .btn:hover,
.cta-block .btn:focus {
  background: transparent;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

@media (max-width: 720px) {
  .warehouse-content {
    padding: 16px 0;
  }

  .process-gallery {
    grid-template-columns: 1fr;
    gap: 20px;
    margin: 24px 0 32px 0;
  }

  .gallery-item img {
    height: 200px;
  }

  .gallery-caption {
    font-size: 14px;
    padding: 14px;
  }

  .engine-block {
    padding: 20px 16px;
    margin-bottom: 20px;
  }

  .engine-block h2 {
    font-size: 20px;
  }

  .cta-block {
    padding: 24px 20px;
  }

  .cta-block h3 {
    font-size: 22px;
  }

  .parts-list {
    padding-left: 20px;
    font-size: 15px;
  }
}