/* Helema River Solar – Scandinavian Clean Style CSS */

/* =========================
   1. CSS Variables & Base
   ========================= */
:root {
  --color-primary: #234077;
  --color-secondary: #F5B900;
  --color-accent: #F3F6F9;
  --color-bg: #FAFBFC;
  --color-white: #fff;
  --color-black: #222;
  --color-grey: #E5E8EC;
  --color-grey-dark: #6B7687;
  --color-shadow: rgba(35, 64, 119, 0.06);
  --font-display: 'Montserrat', Arial, Helvetica, sans-serif;
  --font-body: 'Roboto', Arial, Helvetica, sans-serif;
  --radius: 14px;
  --transition: 0.22s cubic-bezier(.4,0,.2,1);
  --shadow-card: 0 2px 16px var(--color-shadow);
  --shadow-hover: 0 4px 24px rgba(35,64,119,0.10);
  --header-height: 72px;
  --gap-section: 60px;
  --gap-card: 24px;
  --gap-content: 20px;
  --gap-feature: 15px;
}

html {
  box-sizing: border-box;
  font-size: 16px;
  background: var(--color-bg);
  scroll-behavior: smooth;
}
*, *:before, *:after {
  box-sizing: inherit;
}
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-black);
  background: var(--color-bg);
  min-height: 100vh;
  line-height: 1.6;
  font-size: 1rem;
}

/* =========================
   2. Typography
   ========================= */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--color-primary);
  margin-top: 0;
  margin-bottom: 0.7em;
  font-weight: 700;
  letter-spacing: 0.01em;
}
h1 {
  font-size: 2.2rem;
  line-height: 1.15;
}
h2 {
  font-size: 1.5rem;
  line-height: 1.2;
}
h3 {
  font-size: 1.15rem;
  font-weight: 600;
}
p, ul, ol {
  margin-top: 0;
  margin-bottom: 1.1em;
  color: var(--color-grey-dark);
  font-size: 1rem;
}
strong {
  color: var(--color-primary);
  font-weight: 600;
}
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover, a:focus {
  color: var(--color-secondary);
}
ul, ol {
  padding-left: 1.2em;
}

/* =========================
   3. Layout Containers
   ========================= */
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.content-wrapper {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--gap-content);
}

.section {
  margin-bottom: var(--gap-section);
  padding: 40px 20px;
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: var(--gap-content);
}

/* =========================
   4. Header & Navigation
   ========================= */
header {
  background: var(--color-white);
  box-shadow: 0 1px 8px var(--color-shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}
header .container {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  gap: 32px;
}
header img {
  height: 44px;
  width: auto;
  display: block;
}
header nav {
  display: flex;
  flex-direction: row;
  gap: 24px;
  align-items: center;
}
header nav a {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--color-primary);
  padding: 8px 0;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition), color var(--transition);
}
header nav a:hover, header nav a:focus {
  color: var(--color-secondary);
  border-bottom: 2px solid var(--color-secondary);
}
.cta-button {
  background: var(--color-secondary);
  color: var(--color-primary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  padding: 12px 28px;
  border: none;
  border-radius: var(--radius);
  box-shadow: 0 2px 8px var(--color-shadow);
  cursor: pointer;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition), transform var(--transition);
  outline: none;
  margin-left: 16px;
  text-align: center;
  display: inline-block;
}
.cta-button:hover, .cta-button:focus {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px) scale(1.03);
}

/* =========================
   5. Mobile Navigation
   ========================= */
.mobile-menu-toggle {
  display: none;
  position: fixed;
  top: 18px;
  right: 22px;
  z-index: 201;
  background: var(--color-white);
  border: none;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  font-size: 2rem;
  color: var(--color-primary);
  box-shadow: 0 2px 8px var(--color-shadow);
  cursor: pointer;
  transition: background var(--transition), box-shadow var(--transition);
}
.mobile-menu-toggle:active {
  background: var(--color-accent);
}
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: var(--color-white);
  box-shadow: 0 4px 32px rgba(35,64,119,0.12);
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  padding: 0;
  transform: translateX(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.35s cubic-bezier(.4,0,.2,1), opacity 0.25s;
}
.mobile-menu.open {
  transform: translateX(0);
  opacity: 1;
  pointer-events: auto;
}
.mobile-menu-close {
  background: none;
  border: none;
  font-size: 2.2rem;
  color: var(--color-primary);
  margin: 24px 0 0 24px;
  cursor: pointer;
  align-self: flex-start;
  transition: color var(--transition);
}
.mobile-menu-close:hover, .mobile-menu-close:focus {
  color: var(--color-secondary);
}
.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin: 48px 0 0 32px;
}
.mobile-nav a {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--color-primary);
  padding: 8px 0;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition), color var(--transition);
}
.mobile-nav a:hover, .mobile-nav a:focus {
  color: var(--color-secondary);
  border-bottom: 2px solid var(--color-secondary);
}

/* =========================
   6. Hero Section
   ========================= */
.hero {
  background: linear-gradient(120deg, var(--color-accent) 60%, var(--color-secondary) 100%);
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: 0 4px 24px var(--color-shadow);
  margin-bottom: var(--gap-section);
  padding: 0;
}
.hero .container {
  min-height: 320px;
  align-items: center;
  justify-content: center;
  display: flex;
}
.hero .content-wrapper {
  align-items: flex-start;
  gap: 18px;
  max-width: 600px;
}
.hero h1 {
  color: var(--color-primary);
  font-size: 2.4rem;
  margin-bottom: 0.5em;
}
.hero p {
  color: var(--color-grey-dark);
  font-size: 1.1rem;
  margin-bottom: 1.2em;
}

/* =========================
   7. Feature & Service Grids
   ========================= */
.feature-grid, .service-grid, .team-grid, .product-list, .project-gallery, .testimonial-slider, .testimonial-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-card);
  margin-bottom: 0;
}
.feature-grid > div, .service-grid > div, .team-grid > div, .product-list > div, .project-gallery > div {
  background: var(--color-accent);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 24px 20px;
  flex: 1 1 220px;
  min-width: 220px;
  max-width: 100%;
  margin-bottom: 0;
  display: flex;
  flex-direction: column;
  gap: var(--gap-feature);
  transition: box-shadow var(--transition), transform var(--transition);
}
.feature-grid > div:hover, .service-grid > div:hover, .team-grid > div:hover, .product-list > div:hover, .project-gallery > div:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px) scale(1.02);
}

/* =========================
   8. Cards & Testimonials
   ========================= */
.card-container {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-card);
}
.card {
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  margin-bottom: 20px;
  padding: 24px 20px;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--gap-feature);
  transition: box-shadow var(--transition), transform var(--transition);
}
.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px) scale(1.02);
}

.testimonial-slider, .testimonial-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-card);
}
.testimonial-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
  padding: 20px;
  background: var(--color-accent);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  min-width: 220px;
  max-width: 350px;
  margin-bottom: 0;
  color: var(--color-black);
  font-size: 1rem;
  transition: box-shadow var(--transition), transform var(--transition);
}
.testimonial-card p {
  color: var(--color-black);
  font-size: 1.05rem;
  margin-bottom: 0.5em;
}
.testimonial-card strong {
  color: var(--color-primary);
  font-size: 1rem;
  font-weight: 600;
}
.testimonial-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px) scale(1.02);
}

/* =========================
   9. Content Grids & Sections
   ========================= */
.content-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: space-between;
}
.text-image-section {
  display: flex;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
}
.feature-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 15px;
}

/* =========================
   10. Tables & Timeline
   ========================= */
table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-accent);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 1.5em;
  box-shadow: var(--shadow-card);
}
thead {
  background: var(--color-primary);
  color: var(--color-white);
}
th, td {
  padding: 14px 12px;
  text-align: left;
  font-size: 1rem;
}
th {
  font-family: var(--font-display);
  font-weight: 600;
}
tbody tr {
  border-bottom: 1px solid var(--color-grey);
}
tbody tr:last-child {
  border-bottom: none;
}

.timeline ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.timeline li {
  margin-bottom: 18px;
  padding-left: 0.5em;
  position: relative;
}
.timeline li:before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--color-secondary);
  border-radius: 50%;
  margin-right: 12px;
  vertical-align: middle;
}

/* =========================
   11. FAQ Accordion
   ========================= */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.faq-accordion > div {
  background: var(--color-accent);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 18px 20px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.faq-accordion > div:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px) scale(1.01);
}
.faq-accordion strong {
  color: var(--color-primary);
  font-size: 1.08rem;
}

/* =========================
   12. Footer
   ========================= */
footer {
  background: var(--color-accent);
  border-top: 1px solid var(--color-grey);
  padding: 40px 0 0 0;
  margin-top: 60px;
}
footer .container {
  flex-direction: row;
  flex-wrap: wrap;
  gap: 40px;
  align-items: flex-start;
  justify-content: space-between;
  padding-bottom: 24px;
}
footer nav {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
footer nav a {
  color: var(--color-primary);
  font-family: var(--font-display);
  font-size: 1rem;
  transition: color var(--transition);
}
footer nav a:hover, footer nav a:focus {
  color: var(--color-secondary);
}
.footer-contact {
  color: var(--color-grey-dark);
  font-size: 0.98rem;
  line-height: 1.5;
}
.footer-brand img {
  height: 38px;
  width: auto;
  display: block;
}

/* =========================
   13. Cookie Consent Banner
   ========================= */
.cookie-banner {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 300;
  background: var(--color-white);
  box-shadow: 0 -2px 16px var(--color-shadow);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  border-radius: var(--radius) var(--radius) 0 0;
  animation: cookieBannerIn 0.5s cubic-bezier(.4,0,.2,1);
}
@keyframes cookieBannerIn {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
.cookie-banner p {
  color: var(--color-grey-dark);
  font-size: 1rem;
  margin: 0;
}
.cookie-banner .cookie-actions {
  display: flex;
  flex-direction: row;
  gap: 16px;
  margin-top: 6px;
}
.cookie-banner button {
  font-family: var(--font-display);
  font-size: 1rem;
  padding: 10px 22px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
  box-shadow: 0 1px 4px var(--color-shadow);
}
.cookie-banner .accept {
  background: var(--color-secondary);
  color: var(--color-primary);
  font-weight: 700;
}
.cookie-banner .accept:hover, .cookie-banner .accept:focus {
  background: var(--color-primary);
  color: var(--color-white);
}
.cookie-banner .reject {
  background: var(--color-accent);
  color: var(--color-primary);
  font-weight: 500;
}
.cookie-banner .reject:hover, .cookie-banner .reject:focus {
  background: var(--color-grey);
  color: var(--color-primary);
}
.cookie-banner .settings {
  background: var(--color-white);
  color: var(--color-primary);
  border: 1px solid var(--color-grey);
  font-weight: 500;
}
.cookie-banner .settings:hover, .cookie-banner .settings:focus {
  background: var(--color-accent);
  color: var(--color-primary);
}

/* Cookie Modal */
.cookie-modal-overlay {
  position: fixed;
  z-index: 400;
  left: 0; top: 0; right: 0; bottom: 0;
  background: rgba(35,64,119,0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}
.cookie-modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}
.cookie-modal {
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: 0 8px 32px var(--color-shadow);
  padding: 32px 24px 24px 24px;
  min-width: 320px;
  max-width: 95vw;
  display: flex;
  flex-direction: column;
  gap: 18px;
  animation: cookieModalIn 0.4s cubic-bezier(.4,0,.2,1);
}
@keyframes cookieModalIn {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.cookie-modal h2 {
  margin-bottom: 0.5em;
  font-size: 1.2rem;
  color: var(--color-primary);
}
.cookie-modal .cookie-category {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 10px;
}
.cookie-modal .cookie-category label {
  font-size: 1rem;
  color: var(--color-black);
}
.cookie-modal .cookie-toggle {
  width: 38px;
  height: 22px;
  background: var(--color-grey);
  border-radius: 11px;
  position: relative;
  cursor: pointer;
  transition: background var(--transition);
  flex-shrink: 0;
}
.cookie-modal .cookie-toggle input {
  display: none;
}
.cookie-modal .cookie-toggle span {
  position: absolute;
  left: 3px;
  top: 3px;
  width: 16px;
  height: 16px;
  background: var(--color-white);
  border-radius: 50%;
  transition: left var(--transition), background var(--transition);
  box-shadow: 0 1px 4px var(--color-shadow);
}
.cookie-modal .cookie-toggle input:checked + span {
  left: 19px;
  background: var(--color-secondary);
}
.cookie-modal .cookie-category.essential label {
  color: var(--color-grey-dark);
  font-style: italic;
}
.cookie-modal .cookie-category.essential .cookie-toggle {
  opacity: 0.5;
  pointer-events: none;
}
.cookie-modal .cookie-actions {
  display: flex;
  flex-direction: row;
  gap: 16px;
  margin-top: 8px;
}
.cookie-modal .cookie-actions button {
  font-family: var(--font-display);
  font-size: 1rem;
  padding: 10px 22px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
  box-shadow: 0 1px 4px var(--color-shadow);
}
.cookie-modal .accept {
  background: var(--color-secondary);
  color: var(--color-primary);
  font-weight: 700;
}
.cookie-modal .accept:hover, .cookie-modal .accept:focus {
  background: var(--color-primary);
  color: var(--color-white);
}
.cookie-modal .reject {
  background: var(--color-accent);
  color: var(--color-primary);
  font-weight: 500;
}
.cookie-modal .reject:hover, .cookie-modal .reject:focus {
  background: var(--color-grey);
  color: var(--color-primary);
}
.cookie-modal .close {
  background: var(--color-white);
  color: var(--color-primary);
  border: 1px solid var(--color-grey);
  font-weight: 500;
}
.cookie-modal .close:hover, .cookie-modal .close:focus {
  background: var(--color-accent);
  color: var(--color-primary);
}

/* =========================
   14. Utility & Micro-interactions
   ========================= */
::-webkit-scrollbar {
  width: 10px;
  background: var(--color-accent);
}
::-webkit-scrollbar-thumb {
  background: var(--color-grey);
  border-radius: 8px;
}

/* Focus styles for accessibility */
a:focus, button:focus, .cta-button:focus {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

/* =========================
   15. Responsive Design
   ========================= */
@media (max-width: 1100px) {
  .container {
    max-width: 98vw;
  }
}
@media (max-width: 900px) {
  .feature-grid > div, .service-grid > div, .team-grid > div, .product-list > div, .project-gallery > div {
    min-width: 180px;
    padding: 18px 12px;
  }
  .testimonial-card {
    min-width: 180px;
    max-width: 100%;
    padding: 16px 12px;
  }
}
@media (max-width: 768px) {
  header .container {
    flex-direction: row;
    gap: 12px;
  }
  header nav {
    display: none;
  }
  .cta-button {
    margin-left: 0;
  }
  .mobile-menu-toggle {
    display: block;
  }
  .hero .container {
    min-height: 220px;
    padding-top: 32px;
    padding-bottom: 32px;
  }
  .feature-grid, .service-grid, .team-grid, .product-list, .project-gallery, .testimonial-slider, .testimonial-list {
    flex-direction: column;
    gap: 18px;
  }
  .feature-grid > div, .service-grid > div, .team-grid > div, .product-list > div, .project-gallery > div {
    min-width: 0;
    width: 100%;
    max-width: 100%;
  }
  .testimonial-card {
    min-width: 0;
    max-width: 100%;
  }
  .content-grid {
    flex-direction: column;
    gap: 16px;
  }
  .text-image-section {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
  }
  footer .container {
    flex-direction: column;
    gap: 24px;
    align-items: flex-start;
    padding-bottom: 16px;
  }
  .section {
    padding: 28px 8px;
  }
}
@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.4rem;
  }
  .section {
    padding: 18px 2px;
  }
  .cookie-modal {
    min-width: 0;
    padding: 18px 6px 12px 6px;
  }
}

/* =========================
   16. Print Styles
   ========================= */
@media print {
  header, footer, .mobile-menu-toggle, .cookie-banner, .cookie-modal-overlay {
    display: none !important;
  }
  body {
    background: #fff;
    color: #000;
  }
  .section, .card, .testimonial-card {
    box-shadow: none;
    background: #fff;
  }
}

/* =========================
   17. Hide Mobile Menu on Desktop
   ========================= */
@media (min-width: 769px) {
  .mobile-menu, .mobile-menu-toggle {
    display: none !important;
  }
  header nav {
    display: flex !important;
  }
}

/* =========================
   18. Miscellaneous
   ========================= */
img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
}

/* =========================
   19. Spacing & Alignment Patterns (MANDATORY)
   ========================= */
.section { margin-bottom: 60px; padding: 40px 20px; }
.card-container { display: flex; flex-wrap: wrap; gap: 24px; }
.card { margin-bottom: 20px; position: relative; }
.content-grid { display: flex; flex-wrap: wrap; gap: 20px; justify-content: space-between; }
.text-image-section { display: flex; align-items: center; gap: 30px; flex-wrap: wrap; }
.testimonial-card { display: flex; align-items: center; gap: 20px; padding: 20px; }
.feature-item { display: flex; flex-direction: column; align-items: flex-start; gap: 15px; }

/* =========================
   20. End of CSS
   ========================= */