/* =========================================
           ROOT VARIABLES & BASE STYLES
           ========================================= */
:root {
  --fs-bg-dark: #050505;
  --fs-bg-glass: rgba(5, 5, 5, 0.85);
  --fs-falcon-blue: #042d4b;
  --fs-falcon-blue-light: #0a4a7a;
  --fs-steel-silver: #c0c5ce;
  --fs-text-white: #ffffff;
  --fs-text-muted: #94a3b8;
  --fs-accent-glow: #00d4ff;

  --fs-font-heading: "Montserrat", sans-serif;
  --fs-font-body: "Inter", sans-serif;

  --fs-transition-fast: 0.3s ease;
  --fs-transition-smooth: 0.5s cubic-bezier(0.25, 1, 0.5, 1);
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--fs-bg-dark);
  color: var(--fs-text-white);
  font-family: var(--fs-font-body);
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--fs-font-heading);
  font-weight: 700;
}

::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--fs-bg-dark);
}
::-webkit-scrollbar-thumb {
  background: var(--fs-falcon-blue-light);
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--fs-accent-glow);
}

/* General Section Subtitles */
.fs-page-subtitle {
  color: var(--fs-accent-glow);
  font-size: 0.9rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  font-weight: 700;
  margin-bottom: 15px;
  display: inline-block;
  position: relative;
}

.fs-page-title {
  font-size: 3rem;
  font-weight: 800;
  color: var(--fs-text-white);
  line-height: 1.2;
  margin-bottom: 30px;
  text-transform: uppercase;
}

.fs-page-title span {
  color: var(--fs-accent-glow);
}

/* =========================================
           1. PRODUCT HERO BANNER
           ========================================= */
#fs-prod-hero {
  position: relative;
  width: 100vw;
  height: 55vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: url("https://images.unsplash.com/photo-1518709268805-4e9042af9f23?q=80&w=1920&auto=format&fit=crop");
  background-size: cover;
  background-position: center;
  background-attachment: fixed; /* Parallax effect */
  z-index: 1;
}

.fs-prod-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(5, 5, 5, 1) 0%,
    rgba(5, 5, 5, 0.6) 100%
  );
  z-index: -1;
}

.fs-prod-hero-content {
  text-align: center;
  position: relative;
  z-index: 2;
  padding-top: 50px;
}

.fs-prod-hero-title {
  font-size: 4.5rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 15px;
  text-shadow: 0 10px 30px rgba(0, 0, 0, 0.8);
}

/* =========================================
           2. PRODUCT DETAILS SECTION
           ========================================= */
#fs-prod-details {
  padding: 100px 0;
  position: relative;
}

.fs-prod-image-wrapper {
  position: relative;
  /* border-radius: 20px; */
  padding: 20px;
  background: radial-gradient(
    circle at center,
    rgba(255, 255, 255, 0.05) 0%,
    transparent 70%
  );
}

.fs-prod-main-img {
  width: 100%;
  /* border-radius: 15px; */
  box-shadow:
    0 20px 50px rgba(0, 0, 0, 0.8),
    0 0 40px rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--fs-transition-smooth);
  animation: floatImg 6s ease-in-out infinite;
}

@keyframes floatImg {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-15px);
  }
}

.fs-prod-badge {
  position: absolute;
  top: 40px;
  right: 0;
  background: var(--fs-accent-glow);
  color: var(--fs-bg-dark);
  font-family: var(--fs-font-heading);
  font-weight: 800;
  padding: 10px 20px;
  border-radius: 30px 0 0 30px;
  text-transform: uppercase;
  letter-spacing: 1px;
  box-shadow: -10px 10px 20px rgba(0, 212, 255, 0.3);
  z-index: 2;
}

.fs-prod-desc-text {
  color: var(--fs-text-muted);
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 30px;
}

.fs-feature-list {
  list-style: none;
  padding: 0;
  margin: 0 0 40px 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.fs-feature-item {
  display: flex;
  align-items: center;
  gap: 15px;
  background: rgba(255, 255, 255, 0.02);
  padding: 15px 20px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--fs-transition-fast);
}

.fs-feature-item:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(0, 212, 255, 0.3);
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.5);
}

.fs-feature-item i {
  color: var(--fs-accent-glow);
  font-size: 1.5rem;
}

.fs-feature-item span {
  font-weight: 600;
  color: var(--fs-text-white);
  font-size: 0.95rem;
}

.fs-action-buttons {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.fs-btn-enquiry {
  background: linear-gradient(
    45deg,
    var(--fs-falcon-blue),
    var(--fs-accent-glow)
  );
  color: var(--fs-text-white);
  padding: 15px 35px;
  border-radius: 50px;
  font-family: var(--fs-font-heading);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: none;
  box-shadow: 0 10px 20px rgba(0, 212, 255, 0.2);
  transition: var(--fs-transition-smooth);
}

.fs-btn-enquiry:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 212, 255, 0.5);
  color: #fff;
}

.fs-btn-wa {
  background: transparent;
  color: #25d366;
  padding: 15px 35px;
  border-radius: 50px;
  font-family: var(--fs-font-heading);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 2px solid #25d366;
  transition: var(--fs-transition-smooth);
}

.fs-btn-wa:hover {
  background: #25d366;
  color: var(--fs-bg-dark);
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(37, 211, 102, 0.4);
}

@media (max-width: 768px) {
  .fs-feature-list {
    grid-template-columns: 1fr;
  }
  .fs-action-buttons {
    flex-direction: column;
  }
  .fs-btn-enquiry,
  .fs-btn-wa {
    width: 100%;
    justify-content: center;
  }
  .fs-prod-hero-title {
    font-size: 2.5rem;
  }
}

/* =========================================
           3. SPECS & WHY US (PARALLAX SECTION)
           ========================================= */
#fs-specs-section {
  position: relative;
  padding: 120px 0;
  background-image: url("https://imgs.search.brave.com/D-gqoSNErzPq_iwVCejGQ-aRfjJnfMs49sPHo_-hI0k/rs:fit:860:0:0:0/g:ce/aHR0cHM6Ly9zdGF0/aWMudmVjdGVlenku/Y29tL3N5c3RlbS9y/ZXNvdXJjZXMvdGh1/bWJuYWlscy8wMzIv/OTQyLzE1MS9zbWFs/bC9pbmR1c3RyeS1t/ZW4td29ya2luZy1t/YWNoaW5lcnktaW4t/c3RlZWwtZmFjdG9y/eS1mcmVlLXBob3Rv/LmpwZw");
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  z-index: 1;
}

.fs-specs-overlay {
  position: absolute;
  inset: 0;
  background: rgba(5, 5, 5, 0.696); /* Dark overlay */
  z-index: -1;
}

/* Sexy Glass Table for Specs */
.fs-spec-glass-box {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
  height: 100%;
}

.fs-spec-glass-box h3 {
  color: var(--fs-text-white);
  font-family: var(--fs-font-heading);
  text-transform: uppercase;
  margin-bottom: 25px;
  border-bottom: 2px solid rgba(0, 212, 255, 0.3);
  padding-bottom: 15px;
  display: inline-block;
}

.fs-spec-table {
  width: 100%;
  border-collapse: collapse;
}

.fs-spec-table th,
.fs-spec-table td {
  padding: 18px 15px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  text-align: left;
}

.fs-spec-table th {
  color: var(--fs-accent-glow);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.9rem;
  width: 40%;
}

.fs-spec-table td {
  color: var(--fs-text-white);
  font-weight: 400;
}

.fs-spec-table tr:last-child th,
.fs-spec-table tr:last-child td {
  border-bottom: none;
}

.fs-spec-table tr:hover td,
.fs-spec-table tr:hover th {
  background: rgba(0, 212, 255, 0.05);
}

/* Why Us Content Right Side */
.fs-why-list {
  list-style: none;
  padding: 0;
  margin-top: 30px;
}

.fs-why-item {
  display: flex;
  gap: 20px;
  margin-bottom: 30px;
}

.fs-why-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--fs-falcon-blue), #000);
  border: 1px solid var(--fs-accent-glow);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--fs-text-white);
  flex-shrink: 0;
  box-shadow: 0 0 15px rgba(0, 212, 255, 0.2);
  transition: var(--fs-transition-smooth);
}

.fs-why-item:hover .fs-why-icon {
  transform: rotateY(180deg);
  background: var(--fs-accent-glow);
  color: var(--fs-bg-dark);
}

.fs-why-text h4 {
  color: var(--fs-text-white);
  font-size: 1.2rem;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.fs-why-text p {
  color: var(--fs-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0;
}

@media (max-width: 991px) {
  .fs-spec-glass-box {
    margin-bottom: 50px;
    padding: 25px;
  }
}

/* =========================================
           4. APPLICATIONS SECTION (4 CARDS)
           ========================================= */
#fs-applications {
  padding: 120px 0;
  background-color: var(--fs-bg-dark);
  position: relative;
}

.fs-app-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 50px;
}

.fs-app-card {
  position: relative;
  border-radius: 15px;
  overflow: hidden;
  height: 350px;
  cursor: pointer;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
}

.fs-app-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
  filter: grayscale(40%);
}

.fs-app-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.9) 0%,
    rgba(4, 45, 75, 0.4) 50%,
    transparent 100%
  );
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 30px 20px;
  transition: var(--fs-transition-smooth);
}

.fs-app-card:hover .fs-app-img {
  transform: scale(1.1);
  filter: grayscale(0%);
}

.fs-app-card:hover .fs-app-overlay {
  background: linear-gradient(
    to top,
    rgba(0, 212, 255, 0.9) 0%,
    rgba(5, 5, 5, 0.6) 100%
  );
}

.fs-app-title {
  color: var(--fs-text-white);
  font-family: var(--fs-font-heading);
  font-weight: 700;
  font-size: 1.3rem;
  text-transform: uppercase;
  margin-bottom: 10px;
  transform: translateY(20px);
  transition: var(--fs-transition-smooth);
}

.fs-app-desc {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.9rem;
  line-height: 1.5;
  opacity: 0;
  transform: translateY(20px);
  transition: var(--fs-transition-smooth);
}

.fs-app-card:hover .fs-app-title {
  transform: translateY(0);
  color: var(--fs-bg-dark);
}

.fs-app-card:hover .fs-app-desc {
  opacity: 1;
  transform: translateY(0);
  color: var(--fs-bg-dark);
  font-weight: 600;
}

@media (max-width: 1199px) {
  .fs-app-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 768px) {
  .fs-app-grid {
    grid-template-columns: 1fr;
  }
}

/* =========================================
           5. FINAL CTA SECTION (PARALLAX)
           ========================================= */
#fs-bottom-cta {
  position: relative;
  padding: 100px 0;
  background-image: url("../images/backgrounds/testi-bg.jpeg");
  background-size: cover;
  background-position: center;
  background-attachment: fixed; /* Parallax effect */
  z-index: 1;
  text-align: center;
}

.fs-cta-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.637); /* Falcon blue overlay */
  backdrop-filter: blur(5px);
  z-index: -1;
}

.fs-cta-content h2 {
  color: var(--fs-text-white);
  font-family: var(--fs-font-heading);
  font-size: 3.5rem;
  font-weight: 800;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.fs-cta-content p {
  color: var(--fs-steel-silver);
  font-size: 1.2rem;
  max-width: 700px;
  margin: 0 auto 40px auto;
}

.fs-btn-massive {
  background: var(--fs-text-white);
  color: var(--fs-falcon-blue);
  padding: 20px 50px;
  font-size: 1.2rem;
  border-radius: 50px;
  font-weight: 800;
  font-family: var(--fs-font-heading);
  text-transform: uppercase;
  letter-spacing: 2px;
  text-decoration: none;
  display: inline-block;
  transition: var(--fs-transition-smooth);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.fs-btn-massive:hover {
  background: var(--fs-accent-glow);
  color: var(--fs-bg-dark);
  transform: scale(1.05);
  box-shadow: 0 15px 40px rgba(0, 212, 255, 0.6);
}

@media (max-width: 768px) {
  .fs-cta-content h2 {
    font-size: 2.5rem;
  }
}