/* Hero Section */
.hero-section {
  position: relative;
  min-height: calc(100vh - 80px);
  padding: 160px 0 80px 0;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: radial-gradient(circle at 10% 20%, rgba(20, 20, 20, 1) 0%, rgba(5, 5, 5, 1) 90.2%);
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.65);
  background-image: radial-gradient(rgba(242, 183, 5, 0.03) 1px, transparent 0);
  background-size: 24px 24px;
  pointer-events: none;
  z-index: 1;
}

.hero-video-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  justify-content: center;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 25px;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(242, 183, 5, 0.08);
  border: 1px solid rgba(242, 183, 5, 0.25);
  padding: 8px 18px;
  border-radius: 50px;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary-yellow);
  width: fit-content;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background-color: var(--primary-yellow);
  border-radius: 50%;
  box-shadow: var(--yellow-glow);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(242, 183, 5, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(242, 183, 5, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(242, 183, 5, 0); }
}

.hero-title {
  font-size: 4.8rem;
  line-height: 1.1;
  font-weight: 900;
  letter-spacing: -0.03em;
  margin: 10px 0;
}

header.hero-section h1.hero-title span.hero-title-mb {
  color: var(--primary-yellow) !important;
}

header.hero-section h1.hero-title span.hero-title-solar {
  color: #FFFFFF !important;
}

.hero-subtitle-large {
  font-size: 1.8rem;
  font-weight: 600;
  color: #FFFFFF;
  line-height: 1.4;
  max-width: 800px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-description-centered {
  font-size: 1.15rem;
  color: #E2E8F0;
  max-width: 720px;
  line-height: 1.7;
  margin: 0 auto;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.hero-actions-centered {
  display: flex;
  gap: 20px;
  margin-top: 15px;
  justify-content: center;
}

/* Background YouTube Video Cover styling */
.hero-video-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 0;
  pointer-events: none;
}

.hero-video-iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
  opacity: 0.55;
  filter: contrast(1.25) saturate(1.18) brightness(0.95); /* Dynamic color grading for sharpness and contrast */
}

/* 2. Corporate Introduction Section */
.corp-intro-section {
  background-color: var(--bg-dark);
  padding: 100px 0;
}

.corp-intro-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  align-items: center;
}

.corp-intro-left {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.corp-badge {
  display: inline-block;
  padding: 6px 14px;
  background: rgba(242, 183, 5, 0.08);
  border: 1px solid rgba(242, 183, 5, 0.2);
  color: var(--primary-yellow);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  border-radius: 4px;
  width: fit-content;
  letter-spacing: 1px;
}

.corp-badge.yellow {
  background: rgba(242, 183, 5, 0.1);
  border-color: rgba(242, 183, 5, 0.3);
}

.corp-intro-left h2 {
  font-size: 2.5rem;
  line-height: 1.3;
  color: var(--text-primary);
}

.corp-paragraph {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.corp-intro-right {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.corp-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.corp-stat-card {
  padding: 35px 25px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all var(--transition-normal);
  box-shadow: 0 4px 15px var(--shadow-color);
}

.corp-stat-card:hover {
  transform: translateY(-5px);
  border-color: rgba(242, 183, 5, 0.3);
  box-shadow: var(--yellow-glow);
}

.stat-num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary-yellow);
  line-height: 1;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
  font-weight: 500;
}

/* 3. Corporate Services Section */
.corp-services-section {
  padding: 100px 0;
}

.corp-services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 50px;
}

.corp-service-card {
  padding: 40px 30px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.corp-service-card:hover {
  transform: translateY(-5px);
  border-color: rgba(242, 183, 5, 0.25);
  box-shadow: var(--yellow-glow);
}

.service-icon-wrapper {
  width: 60px;
  height: 60px;
  border-radius: 10px;
  background: rgba(242, 183, 5, 0.08);
  border: 1px solid rgba(242, 183, 5, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-yellow);
}

.corp-service-card h3 {
  font-size: 1.4rem;
  color: #FFFFFF;
  margin: 0;
}

.corp-service-card p {
  font-size: 0.95rem;
  color: #A0AEC0;
  line-height: 1.6;
}

.service-details-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary-yellow);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: gap var(--transition-fast);
}

.service-details-link:hover {
  gap: 12px;
}

/* Core Strengths Section */
.strengths-section {
  background-color: var(--bg-dark);
}

.strengths-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.strength-card {
  padding: 40px 30px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.strength-icon-box {
  width: 60px;
  height: 60px;
  background: rgba(255, 215, 0, 0.08);
  border: 1px solid rgba(255, 215, 0, 0.15);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.strength-icon {
  color: var(--primary-yellow);
  filter: drop-shadow(var(--yellow-glow));
}

.strength-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
}

.strength-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Brands We Trust Section */
.brands-section {
  background-color: #0d0d0d;
}

.brands-category-container {
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.brand-group-card {
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 30px;
}

.brand-group-header {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 250px;
  flex-shrink: 0;
  border-right: 1px solid var(--card-border);
  padding-right: 20px;
}

.brand-group-header h3 {
  font-size: 1rem;
  font-weight: 600;
}

.brand-badge-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.brand-badge {
  background-color: #1A1A1A;
  border: 1px solid #2E2E2E;
  color: var(--text-primary);
  padding: 8px 18px;
  border-radius: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.brand-badge:hover {
  border-color: var(--primary-yellow);
  background-color: rgba(255, 215, 0, 0.05);
  color: var(--primary-yellow);
  box-shadow: var(--yellow-glow);
  transform: translateY(-2px);
}

/* CTA Section */
.cta-section {
  background: var(--bg-dark);
}

.cta-box {
  padding: 60px;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  align-items: center;
  gap: 40px;
  border-left: 4px solid var(--primary-yellow);
  box-shadow: var(--yellow-glow);
}

.cta-text-content {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.cta-text-content h2 {
  font-size: 2.2rem;
}

.cta-text-content p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

.cta-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 10px;
}

.cta-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
}

.cta-actions-box {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
  max-width: 300px;
  justify-self: end;
}

.btn-large {
  padding: 16px 30px;
  font-size: 1.1rem;
}

/* Mobile Responsiveness for Home */
@media (max-width: 992px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  .hero-content {
    align-items: center;
  }
  .hero-description {
    margin: 0 auto;
  }
  .hero-actions {
    justify-content: center;
  }
  .cta-box {
    grid-template-columns: 1fr;
    padding: 40px 30px;
  }
  .cta-actions-box {
    justify-self: center;
    max-width: 100%;
    width: 100%;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }
  .strengths-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .brand-group-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .brand-group-header {
    border-right: none;
    border-bottom: 1px solid var(--card-border);
    width: 100%;
    padding-right: 0;
    padding-bottom: 12px;
  }
}

/* ==========================================================================
   5. Solar Savings Calculator Styles
   ========================================================================== */
.calculator-section {
  background-color: var(--bg-dark);
}

.calculator-wrapper {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  padding: 40px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
}

.calculator-left {
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.slider-container {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

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

.slider-label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text-primary);
}

.slider-value {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--primary-yellow);
}

.bill-slider {
  width: 100%;
  -webkit-appearance: none;
  height: 8px;
  border-radius: 4px;
  background: #E8E8E8;
  outline: none;
  transition: background 0.3s;
}

body.bg-dark-section .bill-slider,
.bg-dark-section .bill-slider {
  background: #2D2D2D;
}

.bill-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary-yellow);
  cursor: pointer;
  box-shadow: 0 0 10px rgba(212, 175, 55, 0.4);
  transition: transform var(--transition-fast);
}

.bill-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.slider-ticks {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.calc-info-box {
  display: flex;
  gap: 16px;
  padding: 20px;
  background: rgba(212, 175, 55, 0.05);
  border-left: 4px solid var(--primary-yellow);
  border-radius: 8px;
}

.calc-info-box h4 {
  font-size: 1rem;
  margin-bottom: 5px;
  color: var(--text-primary);
}

.calc-info-box p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.calculator-right {
  display: flex;
  flex-direction: column;
  gap: 24px;
  justify-content: space-between;
}

.result-card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.result-card {
  background: var(--bg-dark);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.02);
}

.result-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.result-val {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text-primary);
}

.calculator-actions {
  width: 100%;
}

.btn-full {
  width: 100%;
  justify-content: center;
}

/* ==========================================================================
   6. Testimonials Section Styles
   ========================================================================== */
.testimonials-section {
  background-color: var(--bg-dark);
}

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

.testimonial-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 20px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.testimonial-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.testimonial-stars {
  display: flex;
  gap: 4px;
}

.testimonial-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  font-style: italic;
  flex-grow: 1;
}

.testimonial-user {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--card-border);
  padding-top: 16px;
}

.user-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-yellow) 0%, #AA8417 100%);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  box-shadow: 0 4px 10px rgba(212, 175, 55, 0.2);
}

.user-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.user-project {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ==========================================================================
   7. FAQs Section Styles
   ========================================================================== */
.faq-section {
  background-color: var(--bg-dark);
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 20px 24px;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.faq-item:hover {
  border-color: var(--primary-yellow);
}

.faq-item.active {
  border-color: var(--primary-yellow);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
}

.faq-question-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.faq-question {
  display: flex;
  align-items: center;
  gap: 12px;
}

.faq-question h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
  font-family: var(--font-body);
}

.faq-icon-toggle {
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.faq-item:hover .faq-icon-toggle,
.faq-item.active .faq-icon-toggle {
  color: var(--primary-yellow);
}

.faq-answer {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--card-border);
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Responsiveness Extensions */
@media (max-width: 992px) {
  .hero-title {
    font-size: 3.2rem;
  }
  .hero-subtitle-large {
    font-size: 1.4rem;
  }
  .corp-intro-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .corp-services-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .calculator-wrapper {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 30px;
  }
  .testimonials-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

@media (max-width: 576px) {
  .hero-title {
    font-size: 2.5rem;
  }
  .hero-subtitle-large {
    font-size: 1.2rem;
  }
  .hero-actions-centered {
    flex-direction: column;
    width: 100%;
    gap: 12px;
  }
  .hero-actions-centered .btn {
    width: 100%;
  }
  .corp-stats-grid {
    grid-template-columns: 1fr;
  }
  .corp-intro-section, .corp-services-section {
    padding: 60px 0;
  }
  .corp-intro-left h2 {
    font-size: 1.8rem;
  }
}

/* Brand Logo Ticker (Marquee) */
.brand-marquee-wrapper {
  overflow: hidden;
  width: 100%;
  position: relative;
  padding: 10px 0;
}

.brand-marquee-container {
  display: flex;
  width: 100%;
  overflow: hidden;
  position: relative;
  mask-image: linear-gradient(to right, transparent, #000 15%, #000 85%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, #000 15%, #000 85%, transparent);
}

.brand-marquee-content {
  display: flex;
  gap: 30px;
  width: max-content;
  animation: marqueeScroll 20s linear infinite;
}

.brand-marquee-content.reverse {
  animation-direction: reverse;
}

@keyframes marqueeScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-33.3333%); } /* scroll exactly one set of duplicated logos */
}

.brand-logo-item {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #FFFFFF;
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-radius: 8px;
  padding: 4px 8px;
  height: 64px;
  width: 170px;
  flex-shrink: 0;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
  transition: all var(--transition-normal);
}

.brand-logo-item:hover {
  background: #FFFFFF;
  border-color: var(--primary-yellow);
  box-shadow: 0 4px 12px rgba(242, 183, 5, 0.15);
  transform: translateY(-2px);
}

.brand-logo-img-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  overflow: hidden;
  transition: all var(--transition-normal);
}

.brand-logo-img {
  max-width: 90%;
  max-height: 52px;
  object-fit: contain;
  opacity: 0.95;
  transition: all var(--transition-normal);
}

.brand-logo-item:hover .brand-logo-img {
  opacity: 1;
  transform: scale(1.1);
}

/* --- Static-HTML adaptations (FAQ accordion + chevron toggle) --- */
.faq-answer { display: none; }
.faq-item.active .faq-answer { display: block; animation: slideDown 0.3s ease; }
.faq-icon-toggle .chevron-up { display: none; }
.faq-item.active .faq-icon-toggle .chevron-up { display: inline-block; }
.faq-item.active .faq-icon-toggle .chevron-down { display: none; }