/*==============================
    RENEWABLE HERO
==============================*/

.renewable-hero {
  padding: 40px 8% 30px;
  background:
    radial-gradient(
      circle at top right,
      rgba(60, 176, 67, 0.08),
      transparent 40%
    ),
    #ffffff;
  overflow: hidden;
  position: relative;
}

.renewable-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(0, 59, 109, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 59, 109, 0.03) 1px, transparent 1px);
  background-size: 70px 70px;
  pointer-events: none;
}

.hero-grid {
  max-width: 1400px;
  margin: auto;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: start;
  position: relative;
  z-index: 2;
}

.hero-content h1 {
  font-size: 3.6rem;
  line-height: 1.1;
  color: #17335e;
  margin: 12px 0 16px;
  font-weight: 800;
}

.hero-content p {
  font-size: 1.05rem;
  color: #5d6875;
  line-height: 1.9;
  max-width: 650px;
}

.hero-buttons {
  display: flex;
  gap: 18px;
  margin-top: 24px;
  flex-wrap: wrap;
}

/*==============================
SECTION LABEL
==============================*/

.section-tag,
.section-label {
  display: inline-block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 700;
  color: #00a651;
  background: #edf9f2;
  padding: 8px 18px;
  border-radius: 50px;
}

.section-header {
  max-width: 760px;
  margin: 0 auto 50px;
  text-align: center;
}

.section-header h2 {
  font-size: 2.5rem;
  color: #0b2945;
  margin: 14px 0;
}

.section-header p {
  color: #69727d;
  line-height: 1.9;
  font-size: 1rem;
}

/*==============================
BUTTONS
==============================*/

.btn-primary,
.btn-secondary {
  text-decoration: none;
  padding: 16px 34px;
  border-radius: 40px;
  font-weight: 600;
  transition: 0.35s;
}

.btn-primary {
  background: #003b6d;
  color: #fff;
}

.btn-primary:hover {
  background: #00a651;
  transform: translateY(-4px);
}

.btn-secondary {
  border: 1px solid #dbe3ea;
  color: #003b6d;
  background: #fff;
}

.btn-secondary:hover {
  border-color: #00a651;
  color: #00a651;
  transform: translateY(-4px);
}

.secondary-btn {
  text-decoration: none;
  padding: 16px 34px;
  border-radius: 40px;
  font-weight: 600;
  transition: 0.35s;
  border: 1px solid #dbe3ea;
  color: #003b6d;
  background: #fff;
}

.secondary-btn:hover {
  border-color: #003b6d;
  color: #003b6d;
}

/*==============================
FEATURE CARDS
==============================*/

.hero-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.feature-card {
  background: #fff;
  border: 1px solid #e7edf3;
  border-radius: 18px;
  padding: 18px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.05);
  transition: 0.35s;
  position: relative;
}

.feature-card:hover {
  transform: translateY(-8px);
  border-color: #00a651;
}

.feature-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #edf7ff;
  color: #003b6d;
  font-weight: 700;
  margin-bottom: 14px;
}

.feature-card h3 {
  color: #003b6d;
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.feature-card p {
  color: #68727d;
  line-height: 1.7;
  font-size: 0.9rem;
}

/*==============================
OVERVIEW
==============================*/

.service-overview {
  padding: 80px 8%;
}

.overview-grid {
  max-width: 1350px;
  margin: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.overview-image img {
  width: 100%;

  height: auto;
  display: block;
  border-radius: 20px;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.08);
  transition: 0.5s;
}

.overview-image {
  overflow: hidden;
  border-radius: 20px;
}

.overview-image:hover img {
  transform: scale(1.05);
}

.overview-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.overview-item {
  background: #fff;
  border: 1px solid #e7edf3;
  padding: 18px;
  border-radius: 18px;
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.05);
  transition: 0.3s;
}

.overview-item:hover {
  border-left: 5px solid #00a651;
  transform: translateX(6px);
}

.overview-item h3 {
  color: #003b6d;
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.overview-item p {
  color: #68727d;
  line-height: 1.7;
  font-size: 0.9rem;
}
/*==============================
RENEWABLE SERVICES
==============================*/

.renewable-services {
  padding: 80px 8%;
  background: #f8fafc;
}

.service-grid {
  max-width: 1350px;
  margin: auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: #fff;
  border: 1px solid #e7edf3;
  border-radius: 22px;
  padding: 30px 28px;
  transition: 0.35s;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.05);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: #00a651;
  transform: scaleX(0);
  transform-origin: left;
  transition: 0.35s;
}

.service-card:hover {
  transform: translateY(-10px);
  border-color: #00a651;
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: #edf7ff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  margin-bottom: 20px;
}

.service-card h3 {
  color: #003b6d;
  font-size: 1.35rem;
  margin-bottom: 16px;
}

.service-card ul {
  list-style: none;
}

.service-card ul li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 12px;
  color: #68727d;
  line-height: 1.7;
}

.service-card ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #00a651;
}

/*==============================
ENGINEERING PROCESS
==============================*/

.engineering-process {
  padding: 80px 8%;
  background: #fff;
}

.process-grid {
  max-width: 1350px;
  margin: auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.process-step {
  background: #fff;
  border: 1px solid #e7edf3;
  border-radius: 20px;
  padding: 34px 26px;
  text-align: center;
  transition: 0.35s;
  position: relative;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.04);
}

.process-step:hover {
  transform: translateY(-8px);
  border-color: #00a651;
}

.process-step span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #003b6d;
  color: #fff;
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.process-step h3 {
  color: #003b6d;
  margin-bottom: 12px;
  font-size: 1.25rem;
}

.process-step p {
  color: #69727d;
  line-height: 1.8;
  font-size: 0.95rem;
}

/*==============================
CTA
==============================*/

.service-cta {
  padding: 5px 8%;
}

.cta-box {
  max-width: 1200px;
  margin: auto;
  text-align: center;
  padding: 60px 50px;
  border-radius: 28px;
  background: linear-gradient(135deg, #003b6d, #0b2945);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at top right,
    rgba(255, 255, 255, 0.08),
    transparent 35%
  );
  pointer-events: none;
}

.cta-box .section-label {
  background: rgba(255, 255, 255, 0.15);
  color: #8ef0a9;
}

.cta-box h2 {
  font-size: 2.4rem;
  margin: 20px 0;
  position: relative;
  z-index: 2;
}

.cta-box p {
  max-width: 760px;
  margin: 0 auto;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.9;
  position: relative;
  z-index: 2;
}

.cta-box .hero-buttons {
  justify-content: center;
  position: relative;
  z-index: 2;
  margin-top: 34px;
}

.cta-box .btn-primary {
  background: #00a651;
}

.cta-box .btn-primary:hover {
  background: #fff;
  color: #003b6d;
}

.cta-box .btn-secondary {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.3);
}

.cta-box .btn-secondary:hover {
  background: #fff;
  color: #003b6d;
}
/*==============================
RESPONSIVE
==============================*/

@media (max-width: 1200px) {
  .hero-grid,
  .overview-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .hero-content {
    text-align: center;
  }

  .hero-content p {
    margin: auto;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-features {
    max-width: 900px;
    margin: auto;
  }

  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .renewable-hero,
  .service-overview,
  .renewable-services,
  .engineering-process,
  .service-cta {
    padding: 70px 6%;
  }

  .renewable-hero {
    padding: 40px 6% 30px;
  }

  .hero-content h1 {
    font-size: 2.8rem;
  }

  .section-header h2 {
    font-size: 2.2rem;
  }

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

  .hero-features,
  .service-grid,
  .process-grid {
    grid-template-columns: 1fr;
  }

  .hero-buttons {
    flex-direction: column;
    width: 100%;
    box-sizing: border-box;
  }

  .hero-buttons a {
    width: 100%;
    box-sizing: border-box;
    text-align: center;
  }

  .cta-box {
    padding: 48px 30px;
  }

  .overview-content {
    gap: 16px;
  }
}

@media (max-width: 480px) {
  .renewable-hero,
  .service-overview,
  .renewable-services,
  .engineering-process,
  .service-cta {
    padding: 60px 5%;
  }

  .renewable-hero {
    padding: 30px 5% 24px;
  }

  .hero-content h1 {
    font-size: 2.2rem;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .section-header h2 {
    font-size: 1.8rem;
  }

  .feature-card,
  .service-card,
  .process-step,
  .overview-item {
    padding: 22px;
  }

  .service-icon {
    width: 52px;
    height: 52px;
    font-size: 1.4rem;
  }

  .process-step span {
    width: 50px;
    height: 50px;
    font-size: 1rem;
  }

  .cta-box {
    padding: 44px 22px;
  }

  .cta-box h2 {
    font-size: 1.8rem;
  }

  .cta-box p,
  .hero-content p,
  .section-header p,
  .overview-item p,
  .process-step p,
  .feature-card p {
    font-size: 0.95rem;
  }
}
/*==============================
SCROLL REVEAL ANIMATIONS
==============================*/

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.8s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/*==============================
SUBTLE HOVER EFFECTS
==============================*/

.feature-card,
.service-card,
.process-step,
.overview-item,
.overview-image img,
.btn-primary,
.btn-secondary {
  will-change: transform;
}

.feature-card:hover,
.service-card:hover,
.process-step:hover {
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.08);
}

.overview-item:hover h3,
.feature-card:hover h3,
.service-card:hover h3,
.process-step:hover h3 {
  color: #00a651;
}

/*==============================
FOCUS STATES
==============================*/

.btn-primary:focus,
.btn-secondary:focus {
  outline: none;
  box-shadow: 0 0 0 4px rgba(0, 166, 81, 0.18);
}

/*==============================
SMOOTH SCROLL
==============================*/

html {
  scroll-behavior: smooth;
}

/*==============================
TEXT SELECTION
==============================*/

::selection {
  background: #00a651;
  color: #fff;
}

/*==============================
CUSTOM SCROLLBAR
==============================*/

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: #eef2f6;
}

::-webkit-scrollbar-thumb {
  background: #003b6d;
  border-radius: 20px;
}

::-webkit-scrollbar-thumb:hover {
  background: #00a651;
}