/* =========================================================
   PORTFOLIO PAGE STYLES
   ========================================================= */

/* --- 1. PAGE HERO (Standard 75vh Layout) --- */
.page-hero {
  height: 75vh;
  background:
    linear-gradient(to bottom, rgba(5, 20, 36, 0.4), rgba(5, 20, 36, 1)),
    url("portfolio-bg.png");
  background-size: cover;
  background-position: center 70%;
  display: flex;
  align-items: center;
  /* ADDED: Centers content horizontally */
  justify-content: center;
  /* ADDED: Centers text inside the container */
  text-align: center;
  position: relative;
  margin-top: 0;
  padding-top: 80px;
}

.page-hero h1 {
  font-size: 4rem;
  color: var(--text-white);
  margin-bottom: 20px;
  text-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

/* Blue Text Class for "Portfolio" */
.text-blue {
  color: #0056b3;
}

.page-hero h1 {
  width: 100%;
  text-align: left;
  align-self: flex-start;
}

.section-subtitle {
  color: var(--brand-yellow);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 10px;
  text-shadow: 0 0 10px rgba(255, 216, 77, 0.6);
  font-size: 0.9rem;
  font-weight: 600;
}

/* --- Filter Bar --- */
.filter-section {
  padding: 40px 0 60px;
  text-align: center;
  position: relative;
  z-index: 10;
}
.filter-bar {
  display: inline-flex;
  background: rgba(10, 35, 57, 0.5);
  padding: 8px;
  border-radius: 50px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
}
.filter-btn {
  background: transparent;
  border: none;
  color: var(--text-grey);
  padding: 15px 40px;
  font-family: "Inter", "Roboto", sans-serif;
  font-size: 1.1rem;
  cursor: pointer;
  border-radius: 40px;
  transition: all 0.3s ease;
  font-weight: 500;
}
.filter-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}
.filter-btn.active {
  background: var(--brand-yellow);
  color: #051424;
  font-weight: 700;
  box-shadow: 0 0 25px rgba(255, 216, 77, 0.4);
}

/* --- Tab Content & Headers --- */
.portfolio-tab-content {
  display: none;
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
  padding-bottom: 120px;
}
.portfolio-tab-content.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}
#residential {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

/* Inline Brand Styling for Paragraphs */
.brand-text-inline {
  font-family: "Inter", "Roboto", sans-serif;
  font-weight: 700;
  color: var(--text-white);
  text-transform: uppercase;
}

.brand-text-inline > span {
  color: var(--brand-yellow);
  text-shadow: 0 0 10px rgba(255, 216, 77, 0.4); /* The signature glow */
}

.tab-header {
  text-align: center;
  max-width: 900px;
  margin: 0 auto 80px;
}
.tab-header h2 {
  font-size: 3.5rem;
  color: var(--text-white);
  margin-bottom: 20px;
}
.tab-header {
  color: var(--brand-yellow);
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 25px;
  font-family: "Inter", "Roboto", sans-serif;
}
.tab-header .heading-desc {
  color: var(--text-grey);
  font-size: 1.1rem;
  line-height: 1.8;
  text-align: justify;
  text-align-last: center;
}

.heading-desc p {
  font-family: "Inter", "Roboto", sans-serif;
}

.heading-desc {
  padding-bottom: 30px;
}

.section-break-title {
  text-align: center; /* Titles should usually remain centered */
  font-size: 2rem;
  color: var(--text-white);
  margin-bottom: 40px;
  position: relative;
}
.section-break-title::after {
  content: "";
  display: block;
  width: 60px;
  height: 3px;
  background: var(--brand-yellow);
  margin: 15px auto 0;
}

/* Styling for the FirstSource Solar text in section titles */
.section-break-title span {
  color: var(--brand-yellow);
  text-shadow: 0 0 15px rgba(255, 216, 77, 0.4);
  font-weight: 700;
}

.section-break-title {
  text-align: center;
  color: var(--text-white);
  font-size: 2rem;
  margin-bottom: 40px;
  position: relative;
}

/* Decorative line under the title */
.section-break-title::after {
  content: "";
  display: block;
  width: 60px;
  height: 3px;
  background: var(--brand-yellow);
  margin: 15px auto 0;
  box-shadow: 0 0 10px var(--brand-yellow);
}

/* =========================================================
   THE CARD FORMAT (STRICT 2x2 GRID)
   ========================================================= */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  margin-bottom: 60px;
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
}

.portfolio-tab-content h2 {
  /* High-quality gold gradient */
  background: linear-gradient(
    to right,
    #bf953f,
    #fcf6ba,
    #b38728,
    #fbf5b7,
    #aa771c
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 700;
  text-transform: uppercase;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}
.portfolio-grid.two-column {
  grid-template-columns: repeat(2, 1fr);
}
.portfolio-grid.three-column {
  grid-template-columns: repeat(3, 1fr);
}

.project-card {
  width: auto;
  max-width: none;
  background: rgba(10, 35, 57, 0.6);
  border: 1px solid var(--brand-yellow);
  border-radius: 16px;
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(10px);
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
  transition:
    transform 0.3s ease,
    box-shadow 0.3s ease;
}

.project-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
}

/* Image Placeholder Area */
.card-img-placeholder {
  height: 260px;
  background: rgba(0, 0, 0, 0.3);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.card-img-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.9;
  transition: 0.4s;
}
.project-card:hover .card-img-placeholder img {
  opacity: 1;
  transform: scale(1.05);
}
.card-img-placeholder.short-placeholder {
  height: 140px;
  background: transparent;
  padding-top: 30px;
}

/* Card Body Text */
.card-body {
  padding: 35px;
  flex-grow: 1;
}
.card-body h3 {
  color: var(--text-white);
  font-size: 1.6rem;
  margin-bottom: 15px;
  line-height: 1.3;
  display: flex;
  align-items: center;
}
.card-body p {
  color: var(--text-grey);
  font-size: 1.05rem;
  line-height: 1.7;
  margin: 0;
  /* ADDED: Justify the card text */
  text-align: justify;
}
.card-body.big-body {
  padding: 45px 35px 35px;
}
.card-body.big-body h3 {
  font-size: 2rem;
}

/* Card Footer */
.card-footer {
  padding: 25px 35px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  gap: 30px;
  background: rgba(5, 20, 36, 0.3);
}
.card-footer.no-icons {
  padding: 5px;
}

.footer-icon {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-grey);
  font-size: 0.95rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.footer-icon i {
  color: var(--brand-yellow);
  font-size: 1.2rem;
}

/* Highlight card for Financing */
.project-card.highlight-card {
  background: linear-gradient(
    145deg,
    rgba(14, 48, 77, 0.8),
    rgba(5, 20, 36, 0.9)
  );
  border: 1px solid var(--brand-yellow);
}

/* --- Tab Footer/CTA --- */
.tab-footer {
  text-align: center;
  margin-top: 60px;
  padding: 50px;
  background: radial-gradient(
    circle,
    rgba(255, 216, 77, 0.05),
    transparent 70%
  );
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}
.tab-footer h3 {
  font-size: 2.2rem;
  color: var(--text-white);
  margin-bottom: 20px;
}
.tab-footer p {
  color: var(--text-grey);
  font-size: 1.2rem;
  margin-bottom: 35px;
}
.btn-glow {
  box-shadow: 0 0 20px rgba(255, 216, 77, 0.3);
}
.btn-glow:hover {
  box-shadow: 0 0 40px rgba(255, 216, 77, 0.6);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .page-hero h1 {
    font-size: 3.5rem;
  }
  .portfolio-grid {
    gap: 20px;
  }
}

@media (max-width: 900px) {
  /* On tablets, keep 2 columns */
  .portfolio-grid.three-column {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .page-hero {
    height: 60vh;
    padding-top: 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
  }

  .page-hero p.section-subtitle {
    width: 100%;
    text-align: center;
    align-self: center;
  }

  .page-hero h1 {
    font-size: 2.8rem;
    line-height: 1.2;
    text-align: center;
    align-self: center;
  }
  .filter-bar {
    flex-direction: column;
    width: 90%;
  }
  .filter-btn {
    width: 100%;
    text-align: center;
    padding: 15px;
    margin-bottom: 5px;
  }
  .tab-header h2 {
    font-size: 2.5rem;
  }

  /* FORCE 1 COLUMN ON MOBILE */
  .portfolio-grid,
  .portfolio-grid.two-column,
  .portfolio-grid.three-column {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 400px) {
  .page-hero h1 {
    font-size: 2rem !important;
  }
  .page-hero {
    height: auto;
    min-height: 55vh;
    padding-bottom: 40px;
  }
}

/* =========================================================
   SCROLL REVEAL ANIMATION (Standard)
   ========================================================= */

/* Initial State (Hidden) */
.reveal {
  position: relative;
  transform: translateY(150px); /* Push element down */
  opacity: 0; /* Make invisible */
  transition: all 1.5s ease; /* Smooth slow transition */
}

.reveal.active {
  transform: translateY(0); /* Bring back to original position */
  opacity: 1; /* Make visible */
}

/* Optional: Staggered delay for grid items if needed */
.project-card:nth-child(even).reveal {
  transition-delay: 0.2s;
}