/* ===== RESET & BASE ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --green:       #4CAF82;
  --green-light: #E8F5EE;
  --green-dark:  #3a9068;
  --white:       #ffffff;
  --gray-100:    #f7f8f9;
  --gray-200:    #e9ecef;
  --gray-500:    #6c757d;
  --gray-800:    #212529;
  --font:        'Inter', system-ui, sans-serif;
  --radius:      12px;
  --shadow:      0 4px 24px rgba(76, 175, 130, 0.10);
  --transition:  0.25s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ===== HEADER / NAV ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.logo-text {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--gray-800);
}

.logo-accent {
  color: var(--green);
}

.logo-kft {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--gray-500);
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--gray-500);
  transition: color var(--transition);
}

.nav-links a:hover {
  color: var(--green);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

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

.btn-primary:hover {
  background: var(--green-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(76, 175, 130, 0.30);
}

.btn-full {
  width: 100%;
  text-align: center;
}

/* ===== HERO ===== */
.hero {
  position: relative;
  padding: 100px 0 90px;
  overflow: hidden;
  background: linear-gradient(135deg, #f0faf5 0%, #ffffff 60%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 680px;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -1px;
  margin-bottom: 20px;
  color: var(--gray-800);
}

.accent {
  color: var(--green);
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--gray-500);
  max-width: 540px;
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero-bg-shape {
  position: absolute;
  top: -120px;
  right: -180px;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(76,175,130,0.12) 0%, rgba(76,175,130,0) 70%);
  pointer-events: none;
}

/* ===== SECTIONS ===== */
.section {
  padding: 80px 0;
}

.section-alt {
  background: var(--gray-100);
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  margin-top: 10px;
  width: 48px;
  height: 4px;
  border-radius: 2px;
  background: var(--green);
}

.section-lead {
  color: var(--gray-500);
  font-size: 1.05rem;
  max-width: 700px;
  margin-top: 20px;
  margin-bottom: 48px;
  line-height: 1.7;
}

/* ===== CARDS ===== */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.card p {
  color: var(--gray-500);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* ===== SERVICES ===== */
.services {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.service-item {
  display: flex;
  align-items: flex-start;
  gap: 28px;
  padding: 28px 0;
  border-bottom: 1px solid var(--gray-200);
}

.service-item:last-child {
  border-bottom: none;
}

.service-num {
  font-size: 2rem;
  font-weight: 700;
  color: var(--green);
  opacity: 0.4;
  min-width: 56px;
  line-height: 1;
  padding-top: 4px;
}

.service-body h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.service-body p {
  color: var(--gray-500);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* ===== REFERENCES ===== */
.ref-stats {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 20px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.ref-stat {
  font-size: 0.95rem;
  color: var(--gray-500);
}

.ref-stat strong {
  color: var(--green);
  font-weight: 700;
}

.ref-stat-sep {
  color: var(--gray-200);
  font-size: 1.2rem;
}

.ref-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.ref-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 20px 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: box-shadow var(--transition), transform var(--transition);
}

.ref-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.ref-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 4px;
  margin-bottom: 8px;
  align-self: flex-start;
}

.ref-tag--solar {
  background: var(--green-light);
  color: var(--green-dark);
}

.ref-tag--laundry {
  background: #e8f0fe;
  color: #3a5fc8;
}

.ref-name {
  font-size: 0.97rem;
  font-weight: 600;
  color: var(--gray-800);
  line-height: 1.4;
}

.ref-note {
  font-weight: 400;
  font-size: 0.85rem;
  color: var(--gray-500);
}

.ref-location {
  font-size: 0.88rem;
  color: var(--gray-500);
  margin-top: 2px;
}

.ref-date {
  font-size: 0.82rem;
  color: var(--green);
  font-weight: 500;
  margin-top: auto;
  padding-top: 10px;
}

/* ===== PARTNERS ===== */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.partner-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 14px;
  transition: box-shadow var(--transition), transform var(--transition);
}

.partner-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.partner-logo {
  max-width: 100%;
  height: 64px;
  object-fit: contain;
}

.partner-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray-800);
}

.partner-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 4px;
}

.partner-tag--solar {
  background: var(--green-light);
  color: var(--green-dark);
}

.partner-tag--laundry {
  background: #e8f0fe;
  color: #3a5fc8;
}

/* ===== REVIEWS ===== */
.reviews-carousel {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 48px;
}

.reviews-viewport {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}

.reviews-track {
  display: flex;
  gap: 24px;
  transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reviews-arrow {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--gray-200);
  background: var(--white);
  color: var(--gray-800);
  font-size: 0.95rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), box-shadow var(--transition);
}

.reviews-arrow:hover {
  background: var(--gray-100);
  box-shadow: var(--shadow);
}

.review-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex: 0 0 calc((100% - 48px) / 3);
  min-width: 0;
  transition: box-shadow var(--transition), transform var(--transition);
}

.review-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.review-header {
  display: flex;
  align-items: center;
  gap: 14px;
}

.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--green);
  color: var(--white);
  font-weight: 700;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.review-name {
  font-size: 0.97rem;
  font-weight: 600;
  color: var(--gray-800);
}

.review-stars {
  color: #f5b400;
  font-size: 0.85rem;
  letter-spacing: 1px;
  margin-top: 2px;
}

.review-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.review-text {
  font-size: 0.92rem;
  color: var(--gray-500);
  line-height: 1.7;
}

/* ===== CONTACT ===== */
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin-top: 16px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-icon {
  font-size: 1.4rem;
  margin-top: 2px;
  min-width: 32px;
}

.contact-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gray-500);
  margin-bottom: 4px;
}

.contact-value {
  font-size: 1rem;
  font-weight: 500;
  color: var(--gray-800);
  transition: color var(--transition);
}

a.contact-value:hover {
  color: var(--green);
}


/* ===== MODAL ===== */
.ref-card--clickable {
  cursor: pointer;
}

.ref-more {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--green);
  margin-top: 10px;
}

.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 500;
  align-items: center;
  justify-content: center;
  padding: 24px;
  backdrop-filter: blur(4px);
}

.modal-overlay.open {
  display: flex;
}

.modal-box {
  background: var(--white);
  border-radius: 20px;
  max-width: 780px;
  width: 100%;
  max-height: 92vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 32px 80px rgba(0,0,0,0.30);
  animation: modalIn 0.28s cubic-bezier(.22,.68,0,1.2);
}

@keyframes modalIn {
  from { opacity: 0; transform: translateY(24px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  background: rgba(255,255,255,0.85);
  border: none;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  font-size: 1.2rem;
  cursor: pointer;
  color: var(--gray-800);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
  z-index: 10;
  backdrop-filter: blur(4px);
}

.modal-close:hover {
  background: var(--white);
}

/* Hero image section */
.modal-hero {
  position: relative;
  height: 280px;
  border-radius: 20px 20px 0 0;
  overflow: hidden;
  cursor: zoom-in;
}

.modal-hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.modal-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.72) 0%, rgba(0,0,0,0.1) 60%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px 28px;
}

.modal-hero-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  margin: 8px 0 4px;
  line-height: 1.25;
}

.modal-hero-location {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.75);
}

/* Zoom badge */
.modal-hero-zoom {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(0,0,0,0.45);
  color: var(--white);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 5px 10px;
  border-radius: 20px;
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

.modal-hero:hover .modal-hero-zoom {
  opacity: 1;
}

/* Content */
.modal-content {
  padding: 28px 28px 32px;
}

.modal-intro {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--gray-200);
}

.modal-intro p {
  font-size: 0.94rem;
  color: var(--gray-500);
  line-height: 1.72;
}

/* Lightbox */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  z-index: 600;
  align-items: center;
  justify-content: center;
  padding: 20px;
  cursor: zoom-out;
}

.lightbox.open {
  display: flex;
}

.lightbox-img {
  max-width: 100%;
  max-height: 92vh;
  border-radius: 8px;
  object-fit: contain;
  box-shadow: 0 8px 40px rgba(0,0,0,0.6);
  animation: modalIn 0.2s ease;
}

.lightbox-close {
  position: absolute;
  top: 18px;
  right: 18px;
  background: rgba(255,255,255,0.15);
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}

.lightbox-close:hover {
  background: rgba(255,255,255,0.28);
}

/* Feature grid */
.modal-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.modal-feature {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--gray-100);
  border-radius: 12px;
  padding: 16px;
  transition: background var(--transition);
}

.modal-feature:hover {
  background: var(--green-light);
}

.modal-feature-icon {
  font-size: 1.5rem;
  min-width: 32px;
  text-align: center;
  margin-top: 1px;
}

.modal-feature-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 4px;
}

.modal-feature-desc {
  font-size: 0.82rem;
  color: var(--gray-500);
  line-height: 1.55;
}

/* Gallery */
.modal-gallery {
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--gray-200);
}

.modal-gallery-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 12px;
}

.modal-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.modal-gallery-thumb {
  width: 100%;
  height: 90px;
  object-fit: cover;
  border-radius: 10px;
  cursor: zoom-in;
  transition: opacity var(--transition), transform var(--transition);
}

.modal-gallery-thumb:hover {
  opacity: 0.85;
  transform: scale(1.02);
}

@media (max-width: 600px) {
  .modal-hero {
    height: 220px;
  }
  .modal-features {
    grid-template-columns: 1fr;
  }
  .modal-gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .modal-content {
    padding: 20px;
  }
}

/* ===== FOOTER ===== */
.footer {
  background: var(--gray-800);
  color: var(--white);
  padding: 36px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-logo {
  font-size: 1.15rem;
  color: var(--white);
}

.footer-copy {
  font-size: 0.88rem;
  color: #adb5bd;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav-links {
    gap: 20px;
  }

  .hero {
    padding: 72px 0 64px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .review-card {
    flex-basis: calc((100% - 24px) / 2);
  }

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

/* ===== HAMBURGER ===== */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  transition: background var(--transition);
}

.hamburger:hover {
  background: var(--gray-100);
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--gray-800);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 480px) {
  .hamburger {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    flex-direction: column;
    gap: 0;
    padding: 8px 0 16px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links li a {
    display: block;
    padding: 12px 24px;
    font-size: 1rem;
  }

  .hero-title {
    font-size: 1.9rem;
  }

  .review-card {
    flex-basis: 100%;
  }

  .reviews-arrow {
    width: 34px;
    height: 34px;
  }
}