/* --------------------------------------------------
   RovetFrapp Energie - Industrial Modern CSS Theme
   Brand: Modern, trustworthy, sustainable, innovative
   Style: Industrial Modern (dark, metallic, urban)
   Fonts: Montserrat (display), Roboto (body)
   Colors: #234E70 (primary), #68B684 (secondary), #F0F6F6 (accent)
-------------------------------------------------- */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@700;900&family=Roboto:wght@400;500;700&display=swap');

:root {
  --color-primary: #234E70;
  --color-secondary: #68B684;
  --color-accent: #F0F6F6;
  --color-bg: #181C22;
  --color-bg-alt: #23272E;
  --color-metal: #AAB2BD;
  --color-text: #F0F6F6;
  --color-text-dark: #23272E;
  --color-shadow: rgba(35, 78, 112, 0.18);
  --color-shadow-strong: rgba(35, 78, 112, 0.35);
  --color-border: #31363C;
  --color-success: #68B684;
  --color-danger: #E74C3C;
  --transition: 0.25s cubic-bezier(.4,0,.2,1);
  --radius: 10px;
  --radius-sm: 6px;
  --font-display: 'Montserrat', Arial, sans-serif;
  --font-body: 'Roboto', Arial, sans-serif;
}

html {
  box-sizing: border-box;
  font-size: 16px;
  scroll-behavior: smooth;
}
*, *:before, *:after {
  box-sizing: inherit;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  margin: 0;
  min-height: 100vh;
  line-height: 1.6;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--color-accent);
  margin-top: 0;
  margin-bottom: 0.6em;
  font-weight: 900;
  letter-spacing: 0.01em;
}
h1 {
  font-size: 2.5rem;
  text-shadow: 0 2px 8px var(--color-shadow-strong);
}
h2 {
  font-size: 2rem;
  border-left: 5px solid var(--color-secondary);
  padding-left: 16px;
  margin-bottom: 1.2em;
}
h3 {
  font-size: 1.3rem;
  color: var(--color-secondary);
  font-weight: 700;
  margin-bottom: 0.5em;
}
h4, h5, h6 {
  font-size: 1.1rem;
  color: var(--color-metal);
}
p, ul, ol, li, blockquote {
  font-family: var(--font-body);
  color: var(--color-text);
  font-size: 1rem;
  margin-bottom: 1em;
}
strong {
  color: var(--color-secondary);
  font-weight: 700;
}

/* Links */
a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover, a:focus {
  color: var(--color-accent);
  text-decoration: underline;
}

/* Header & Navigation */
header {
  background: linear-gradient(90deg, var(--color-bg-alt) 70%, var(--color-primary) 100%);
  box-shadow: 0 2px 12px var(--color-shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}
header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 20px;
}
header img {
  height: 48px;
  width: auto;
  filter: grayscale(0.2) contrast(1.1) drop-shadow(0 2px 8px var(--color-shadow));
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}
.main-nav a {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-accent);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
  position: relative;
}
.main-nav a:hover, .main-nav a:focus {
  background: var(--color-secondary);
  color: var(--color-bg-alt);
}
.main-nav .cta-primary {
  background: linear-gradient(90deg, var(--color-secondary) 70%, var(--color-primary) 100%);
  color: var(--color-bg-alt);
  border-radius: var(--radius);
  box-shadow: 0 2px 8px var(--color-shadow-strong);
  padding: 10px 22px;
  margin-left: 16px;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  border: none;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
}
.main-nav .cta-primary:hover, .main-nav .cta-primary:focus {
  background: var(--color-accent);
  color: var(--color-primary);
  box-shadow: 0 4px 16px var(--color-shadow-strong);
}

/* Hamburger Menu (Mobile) */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 2rem;
  color: var(--color-accent);
  cursor: pointer;
  margin-left: 12px;
  transition: color var(--transition), transform var(--transition);
}
.mobile-menu-toggle:active {
  color: var(--color-secondary);
  transform: scale(1.1);
}

/* Mobile Menu Overlay */
.mobile-menu {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(24,28,34,0.98);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: flex-start;
  padding: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}
.mobile-menu.open {
  opacity: 1;
  pointer-events: auto;
}
.mobile-menu-close {
  background: none;
  border: none;
  color: var(--color-accent);
  font-size: 2.2rem;
  margin: 24px 32px 0 0;
  cursor: pointer;
  align-self: flex-end;
  transition: color var(--transition), transform var(--transition);
}
.mobile-menu-close:hover, .mobile-menu-close:focus {
  color: var(--color-secondary);
  transform: scale(1.1);
}
.mobile-nav {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 24px;
  margin: 40px 32px 0 0;
}
.mobile-nav a {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--color-accent);
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
  width: 100%;
  text-align: right;
  transition: color var(--transition), background var(--transition);
}
.mobile-nav a:hover, .mobile-nav a:focus {
  color: var(--color-secondary);
  background: var(--color-bg-alt);
}

/* Slide-in Animation */
.mobile-menu {
  transform: translateX(100%);
  transition: transform var(--transition), opacity var(--transition);
}
.mobile-menu.open {
  transform: translateX(0);
  opacity: 1;
}

/* Hide main nav, show burger on mobile */
@media (max-width: 1024px) {
  .main-nav {
    display: none;
  }
  .mobile-menu-toggle {
    display: block;
  }
}
@media (min-width: 1025px) {
  .mobile-menu {
    display: none !important;
  }
}

/* --------------------------------------------------
   Layout & Section Spacing
-------------------------------------------------- */
.section {
  margin-bottom: 60px;
  padding: 40px 20px;
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  box-shadow: 0 2px 12px var(--color-shadow);
}
.content-wrapper {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Card Container & Cards */
.card-container {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}
.card {
  background: var(--color-bg-alt);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: 0 2px 8px var(--color-shadow);
  margin-bottom: 20px;
  position: relative;
  padding: 28px 22px;
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}
.card:hover, .card:focus-within {
  box-shadow: 0 6px 24px var(--color-shadow-strong);
  border-color: var(--color-secondary);
  transform: translateY(-4px) scale(1.01);
}

/* Content Grid */
.content-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: space-between;
}

/* Text-Image Section */
.text-image-section {
  display: flex;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
}

/* Testimonial Card */
.testimonial-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 20px;
  background: var(--color-accent);
  color: var(--color-text-dark);
  border-radius: var(--radius);
  box-shadow: 0 2px 8px var(--color-shadow);
  margin-bottom: 20px;
  border-left: 6px solid var(--color-secondary);
  font-family: var(--font-body);
  transition: box-shadow var(--transition), border-color var(--transition);
}
.testimonial-card blockquote {
  color: var(--color-text-dark);
  font-size: 1.1rem;
  font-style: italic;
  margin: 0 0 0.5em 0;
  line-height: 1.5;
}
.testimonial-card footer {
  color: var(--color-primary);
  font-weight: 700;
  font-size: 1rem;
}
.testimonial-card:hover, .testimonial-card:focus-within {
  box-shadow: 0 6px 24px var(--color-shadow-strong);
  border-color: var(--color-primary);
}

/* Feature Item */
.feature-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 15px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--color-secondary);
  padding: 24px 18px;
  box-shadow: 0 2px 8px var(--color-shadow);
  margin-bottom: 20px;
  min-width: 220px;
  transition: box-shadow var(--transition), border-color var(--transition);
}
.feature-item:hover, .feature-item:focus-within {
  box-shadow: 0 6px 24px var(--color-shadow-strong);
  border-color: var(--color-primary);
}

/* Feature Grid (used in several sections) */
.feature-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: flex-start;
}
.feature-grid > div, .feature-grid > .feature-item {
  flex: 1 1 260px;
  min-width: 220px;
}

/* Gallery Grid (for projects/technologies) */
.gallery-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: flex-start;
}
.gallery-grid > div {
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  box-shadow: 0 2px 8px var(--color-shadow);
  padding: 24px 18px;
  min-width: 220px;
  flex: 1 1 260px;
  margin-bottom: 20px;
  color: var(--color-accent);
  font-family: var(--font-display);
  font-size: 1.1rem;
  border-left: 4px solid var(--color-primary);
  transition: box-shadow var(--transition), border-color var(--transition);
}
.gallery-grid > div:hover {
  box-shadow: 0 6px 24px var(--color-shadow-strong);
  border-color: var(--color-secondary);
}

/* Service List */
.service-list {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: flex-start;
}
.service-item {
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--color-secondary);
  padding: 24px 18px;
  box-shadow: 0 2px 8px var(--color-shadow);
  margin-bottom: 20px;
  min-width: 220px;
  flex: 1 1 260px;
  transition: box-shadow var(--transition), border-color var(--transition);
}
.service-item:hover, .service-item:focus-within {
  box-shadow: 0 6px 24px var(--color-shadow-strong);
  border-color: var(--color-primary);
}

/* Team Grid */
.team-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: flex-start;
}
.team-member {
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--color-primary);
  padding: 24px 18px;
  box-shadow: 0 2px 8px var(--color-shadow);
  margin-bottom: 20px;
  min-width: 220px;
  flex: 1 1 260px;
  transition: box-shadow var(--transition), border-color var(--transition);
}
.team-member:hover, .team-member:focus-within {
  box-shadow: 0 6px 24px var(--color-shadow-strong);
  border-color: var(--color-secondary);
}

/* Contact Details */
.contact-details {
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--color-secondary);
  padding: 24px 18px;
  box-shadow: 0 2px 8px var(--color-shadow);
  margin-bottom: 20px;
}
.map-placeholder {
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--color-primary);
  padding: 24px 18px;
  box-shadow: 0 2px 8px var(--color-shadow);
  margin-bottom: 20px;
  color: var(--color-metal);
  font-style: italic;
}
.cta-contact {
  display: flex;
  justify-content: flex-start;
  margin-top: 10px;
}

/* CTA Section */
.cta-section {
  background: linear-gradient(90deg, var(--color-primary) 70%, var(--color-secondary) 100%);
  color: var(--color-accent);
  border-radius: var(--radius);
  box-shadow: 0 2px 12px var(--color-shadow-strong);
  margin-bottom: 60px;
  padding: 40px 20px;
}
.cta-section h2 {
  color: var(--color-accent);
  border-left: none;
  padding-left: 0;
}

/* CTA Button */
.cta-primary {
  display: inline-block;
  background: linear-gradient(90deg, var(--color-secondary) 70%, var(--color-primary) 100%);
  color: var(--color-bg-alt);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  padding: 14px 32px;
  border-radius: var(--radius);
  box-shadow: 0 2px 8px var(--color-shadow-strong);
  border: none;
  cursor: pointer;
  letter-spacing: 0.02em;
  margin-top: 10px;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.cta-primary:hover, .cta-primary:focus {
  background: var(--color-accent);
  color: var(--color-primary);
  box-shadow: 0 4px 16px var(--color-shadow-strong);
  transform: translateY(-2px) scale(1.03);
}

/* Footer */
footer {
  background: var(--color-bg-alt);
  color: var(--color-metal);
  padding: 40px 0 24px 0;
  border-top: 2px solid var(--color-border);
  margin-top: 60px;
}
footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: space-between;
  align-items: flex-start;
}
.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 180px;
}
.footer-nav a {
  color: var(--color-metal);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: color var(--transition);
}
.footer-nav a:hover, .footer-nav a:focus {
  color: var(--color-secondary);
}
.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.footer-brand img {
  height: 40px;
  width: auto;
  filter: grayscale(0.3) contrast(1.1);
}
.footer-brand span {
  color: var(--color-metal);
  font-size: 0.95rem;
}
.footer-contact {
  min-width: 220px;
  color: var(--color-metal);
  font-size: 0.98rem;
}
.footer-contact a {
  color: var(--color-secondary);
  text-decoration: underline;
}

/* Legal Section (privacy, gdpr, terms, cookie) */
.legal-section {
  margin-bottom: 60px;
  padding: 40px 20px;
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  box-shadow: 0 2px 12px var(--color-shadow);
}
.legal-section h1, .legal-section h2 {
  color: var(--color-accent);
}
.legal-section ul {
  padding-left: 24px;
}
.legal-section li {
  margin-bottom: 0.5em;
}

/* Thank You Section */
.thank-you-section {
  margin-bottom: 60px;
  padding: 40px 20px;
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  box-shadow: 0 2px 12px var(--color-shadow);
  text-align: center;
}

/* --------------------------------------------------
   Cookie Consent Banner & Modal
-------------------------------------------------- */
.cookie-banner {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  background: var(--color-bg-alt);
  color: var(--color-accent);
  box-shadow: 0 -2px 16px var(--color-shadow-strong);
  padding: 24px 20px;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  animation: cookieBannerIn 0.5s var(--transition) forwards;
}
@keyframes cookieBannerIn {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
.cookie-banner p {
  color: var(--color-accent);
  font-size: 1rem;
  margin: 0;
}
.cookie-banner .cookie-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.cookie-btn {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  border-radius: var(--radius-sm);
  border: none;
  padding: 10px 22px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition);
  margin: 0 2px;
}
.cookie-btn.accept {
  background: var(--color-secondary);
  color: var(--color-bg-alt);
  box-shadow: 0 2px 8px var(--color-shadow-strong);
}
.cookie-btn.accept:hover, .cookie-btn.accept:focus {
  background: var(--color-accent);
  color: var(--color-primary);
  transform: scale(1.04);
}
.cookie-btn.reject {
  background: var(--color-danger);
  color: var(--color-accent);
  box-shadow: 0 2px 8px var(--color-shadow-strong);
}
.cookie-btn.reject:hover, .cookie-btn.reject:focus {
  background: var(--color-bg);
  color: var(--color-danger);
  transform: scale(1.04);
}
.cookie-btn.settings {
  background: var(--color-bg-alt);
  color: var(--color-secondary);
  border: 1.5px solid var(--color-secondary);
}
.cookie-btn.settings:hover, .cookie-btn.settings:focus {
  background: var(--color-secondary);
  color: var(--color-bg-alt);
  transform: scale(1.04);
}

/* Cookie Modal */
.cookie-modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(24,28,34,0.92);
  z-index: 100000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}
.cookie-modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}
.cookie-modal {
  background: var(--color-bg-alt);
  color: var(--color-accent);
  border-radius: var(--radius);
  box-shadow: 0 4px 32px var(--color-shadow-strong);
  padding: 32px 28px;
  min-width: 320px;
  max-width: 95vw;
  display: flex;
  flex-direction: column;
  gap: 18px;
  animation: cookieModalIn 0.4s var(--transition) forwards;
}
@keyframes cookieModalIn {
  from { transform: scale(0.92); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.cookie-modal h2 {
  color: var(--color-accent);
  margin-bottom: 0.5em;
}
.cookie-modal .cookie-category {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 10px;
}
.cookie-modal .cookie-category label {
  font-family: var(--font-body);
  color: var(--color-accent);
  font-size: 1rem;
}
.cookie-modal .cookie-toggle {
  appearance: none;
  width: 38px;
  height: 20px;
  background: var(--color-border);
  border-radius: 12px;
  position: relative;
  outline: none;
  cursor: pointer;
  transition: background var(--transition);
}
.cookie-modal .cookie-toggle:checked {
  background: var(--color-secondary);
}
.cookie-modal .cookie-toggle:before {
  content: '';
  position: absolute;
  left: 3px;
  top: 3px;
  width: 14px;
  height: 14px;
  background: var(--color-accent);
  border-radius: 50%;
  transition: transform var(--transition), background var(--transition);
}
.cookie-modal .cookie-toggle:checked:before {
  transform: translateX(18px);
  background: var(--color-bg-alt);
}
.cookie-modal .cookie-actions {
  display: flex;
  gap: 16px;
  justify-content: flex-end;
}
.cookie-modal .cookie-btn {
  min-width: 110px;
}

/* Essential cookies always enabled */
.cookie-modal .cookie-category.essential label {
  color: var(--color-metal);
  font-style: italic;
}
.cookie-modal .cookie-category.essential .cookie-toggle {
  opacity: 0.5;
  pointer-events: none;
}

/* --------------------------------------------------
   Responsive Design (Mobile First)
-------------------------------------------------- */
@media (max-width: 1024px) {
  .container {
    max-width: 98vw;
    padding: 0 10px;
  }
  .footer-brand, .footer-contact, .footer-nav {
    min-width: 0;
  }
}
@media (max-width: 900px) {
  .feature-grid, .gallery-grid, .service-list, .team-grid, .content-grid {
    flex-direction: column;
    gap: 20px;
  }
  .feature-grid > div, .feature-grid > .feature-item,
  .gallery-grid > div, .service-item, .team-member {
    min-width: 0;
    flex: 1 1 100%;
  }
  footer .container {
    flex-direction: column;
    gap: 24px;
    align-items: flex-start;
  }
}
@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  h2 {
    font-size: 1.4rem;
    padding-left: 10px;
  }
  .section, .legal-section, .cta-section, .thank-you-section {
    padding: 24px 8px;
    margin-bottom: 36px;
  }
  .content-wrapper {
    gap: 14px;
  }
  .text-image-section {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
  }
  .testimonial-card, .feature-item, .card, .gallery-grid > div, .service-item, .team-member {
    padding: 16px 10px;
    font-size: 0.98rem;
  }
  .cta-primary {
    padding: 12px 18px;
    font-size: 1rem;
  }
  .cookie-modal {
    padding: 18px 8px;
    min-width: 0;
  }
}
@media (max-width: 480px) {
  header .container {
    min-height: 56px;
    padding: 0 6px;
  }
  .footer-brand img {
    height: 32px;
  }
  .cookie-banner {
    padding: 14px 4px;
    font-size: 0.95rem;
  }
}

/* --------------------------------------------------
   Utility Classes
-------------------------------------------------- */
.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.mt-20 { margin-top: 20px !important; }
.mb-20 { margin-bottom: 20px !important; }
.text-center { text-align: center !important; }

/* --------------------------------------------------
   Micro-interactions
-------------------------------------------------- */
.card, .feature-item, .service-item, .team-member, .gallery-grid > div {
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}
.card:active, .feature-item:active, .service-item:active, .team-member:active, .gallery-grid > div:active {
  transform: scale(0.98);
}

/* --------------------------------------------------
   Accessibility
-------------------------------------------------- */
:focus {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

/* --------------------------------------------------
   Hide scroll on mobile menu/modal open
-------------------------------------------------- */
body.menu-open, body.cookie-modal-open {
  overflow: hidden;
}