/**
 * Drip & Define - Luxury Medical Spa Aesthetics
 * Core Theme Styling & Color Palette Tokens
 */

:root {
  /* Brand Swatches */
  --color-siam: #636456;
  --color-siam-dark: #4d4e42;
  --color-siam-light: #7b7c6c;
  --color-zorba: #9D9989;
  --color-quicksand: #B7A08F;
  --color-quicksand-light: #cbbaa9;
  --color-malta: #BAAF9E;
  --color-satin-linen: #EFEDE3;
  --color-satin-linen-soft: #f7f6f0;
  
  /* Luxury Dark & Light Accents */
  --color-charcoal: #242621;
  --color-charcoal-light: #363932;
  --color-body-text: #3c3e37;
  --color-muted: #72746a;
  --color-gold: #c5a059;
  --color-gold-hover: #b08d48;
  --color-white: #ffffff;
  --color-card-border: rgba(183, 160, 143, 0.28);
  
  /* Fonts */
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'Montserrat', 'Inter', -apple-system, sans-serif;
  
  /* Transitions */
  --transition-smooth: all 0.35s cubic-bezier(0.25, 1, 0.5, 1);
}

/* Base Elements */
body {
  font-family: var(--font-sans);
  background-color: var(--color-satin-linen-soft);
  color: var(--color-body-text);
  line-height: 1.7;
  overflow-x: hidden;
  letter-spacing: 0.2px;
}

h1, h2, h3, h4, h5, h6, .serif-font {
  font-family: var(--font-serif);
  color: var(--color-siam-dark);
  font-weight: 600;
  letter-spacing: 0.5px;
}

a {
  color: var(--color-siam);
  text-decoration: none;
  transition: var(--transition-smooth);
}
a:hover {
  color: var(--color-quicksand);
}

/* Reading Progress Bar */
#reading-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-siam), var(--color-quicksand), var(--color-gold));
  width: 0%;
  z-index: 1090;
  transition: width 0.1s ease-out;
}

/* Top Announcement Bar */
.top-bar {
  background-color: var(--color-siam);
  color: var(--color-satin-linen);
  font-size: 0.82rem;
  padding: 7px 0;
  letter-spacing: 0.8px;
}
.top-bar a {
  color: var(--color-satin-linen);
}
.top-bar a:hover {
  color: var(--color-quicksand-light);
}

/* Sticky Luxury Navbar */
.navbar-luxury {
  background: rgba(239, 237, 227, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(183, 160, 143, 0.25);
  transition: var(--transition-smooth);
  padding: 14px 0;
}
.navbar-luxury.scrolled {
  background: rgba(239, 237, 227, 0.98);
  box-shadow: 0 4px 20px rgba(99, 100, 86, 0.08);
  padding: 8px 0;
}

.brand-logo-img {
  height: 52px;
  width: auto;
  transition: var(--transition-smooth);
}
.navbar-luxury.scrolled .brand-logo-img {
  height: 44px;
}

.navbar-nav .nav-link {
  font-family: var(--font-sans);
  font-size: 0.84rem;
  font-weight: 500;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: var(--color-siam);
  padding: 8px 16px !important;
  position: relative;
  transition: var(--transition-smooth);
}
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--color-charcoal);
}
.navbar-nav .nav-link::after {
  content: '';
  position: absolute;
  width: 0%;
  height: 2px;
  bottom: 0;
  left: 16px;
  background-color: var(--color-quicksand);
  transition: var(--transition-smooth);
}
.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after {
  width: calc(100% - 32px);
}

/* Buttons */
.btn-luxury-primary {
  background-color: var(--color-siam);
  color: #ffffff;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 500;
  padding: 13px 28px;
  border-radius: 3px;
  border: 1px solid var(--color-siam);
  box-shadow: 0 4px 15px rgba(99, 100, 86, 0.2);
  transition: var(--transition-smooth);
  display: inline-block;
}
.btn-luxury-primary:hover {
  background-color: var(--color-charcoal);
  color: #ffffff;
  border-color: var(--color-charcoal);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(36, 38, 33, 0.25);
}

.btn-luxury-outline {
  background-color: transparent;
  color: var(--color-siam);
  font-family: var(--font-sans);
  font-size: 0.82rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 500;
  padding: 13px 28px;
  border-radius: 3px;
  border: 1px solid var(--color-siam);
  transition: var(--transition-smooth);
  display: inline-block;
}
.btn-luxury-outline:hover {
  background-color: var(--color-siam);
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-luxury-gold {
  background: linear-gradient(135deg, var(--color-quicksand), var(--color-gold));
  color: #ffffff;
  font-family: var(--font-sans);
  font-size: 0.82rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 500;
  padding: 13px 30px;
  border-radius: 3px;
  border: none;
  box-shadow: 0 4px 15px rgba(183, 160, 143, 0.35);
  transition: var(--transition-smooth);
}
.btn-luxury-gold:hover {
  background: linear-gradient(135deg, var(--color-gold), var(--color-quicksand));
  color: #ffffff;
  transform: translateY(-2px);
}

/* Hero Carousel Section (Aestetika Reference) */
.hero-carousel-section {
  position: relative;
  overflow: hidden;
  background-color: var(--color-charcoal);
}
.hero-carousel-section .carousel-item {
  min-height: 85vh;
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
  transition: opacity 1.2s ease-in-out;
}
.hero-slide-container {
  min-height: 85vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.min-vh-85 {
  min-height: 85vh;
}
.hero-carousel-section .hero-badge {
  display: inline-flex;
  align-items: center;
  background: rgba(239, 237, 227, 0.18);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(212, 175, 55, 0.45);
  color: var(--color-satin-linen);
  padding: 8px 20px;
  border-radius: 40px;
  font-size: 0.76rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 24px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}
.hero-title {
  font-family: 'Libre Caslon Text', 'Cormorant Garamond', Georgia, serif;
  font-size: clamp(2.8rem, 5.2vw, 4.8rem);
  font-weight: 400;
  line-height: 1.15;
  margin-bottom: 24px;
  color: #ffffff;
  letter-spacing: -0.5px;
}
.hero-title i {
  font-style: italic;
  font-weight: 400;
  color: #f7f6f0;
}
.hero-title span i {
  color: #e5cf9b;
}
.lead-hero {
  font-family: var(--font-sans);
  font-size: 1.12rem;
  color: rgba(239, 237, 227, 0.92);
  max-width: 620px;
  line-height: 1.85;
  margin-bottom: 35px;
  font-weight: 300;
  letter-spacing: 0.3px;
}

/* Hero Float Card */
.hero-float-card {
  background: rgba(36, 38, 33, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(212, 175, 55, 0.35);
  border-radius: 20px;
  max-width: 340px;
  margin-left: auto;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.3);
  animation: floatCardAnim 4s ease-in-out infinite;
}
@keyframes floatCardAnim {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* Custom Carousel Controls & Indicators */
.luxury-carousel-arrow {
  width: 52px;
  height: 52px;
  background: rgba(36, 38, 33, 0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(239, 237, 227, 0.3);
  border-radius: 50%;
  top: 50%;
  transform: translateY(-50%);
  opacity: 0.85;
  transition: var(--transition-smooth);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}
.luxury-carousel-arrow:hover {
  background: var(--color-siam);
  border-color: var(--color-gold);
  color: #ffffff;
  opacity: 1;
  transform: translateY(-50%) scale(1.08);
}
.carousel-control-prev.luxury-carousel-arrow {
  left: 30px;
}
.carousel-control-next.luxury-carousel-arrow {
  right: 30px;
}
.luxury-carousel-indicators button {
  width: 40px;
  height: 4px;
  border-radius: 4px;
  background-color: rgba(239, 237, 227, 0.4);
  border: none;
  margin: 0 6px;
  transition: var(--transition-smooth);
}
.luxury-carousel-indicators button.active {
  background-color: var(--color-gold);
  width: 60px;
  box-shadow: 0 0 10px rgba(212, 175, 55, 0.8);
}

/* Pillar Ribbon / Feature Badges */
.pillar-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(183, 160, 143, 0.15);
  color: var(--color-siam);
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 0.76rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-weight: 500;
  border: 1px solid rgba(183, 160, 143, 0.3);
}

/* Animated Counters Bar */
.counters-section {
  background-color: var(--color-charcoal);
  color: var(--color-satin-linen);
  padding: 45px 0;
  border-top: 2px solid var(--color-gold);
}
.counter-box {
  text-align: center;
  padding: 10px 15px;
}
.counter-box .number {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 600;
  color: var(--color-quicksand-light);
  line-height: 1;
  margin-bottom: 6px;
}
.counter-box .label {
  font-size: 0.78rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-malta);
}

/* Section Header Styling */
.section-header {
  margin-bottom: 50px;
}
.section-subtitle {
  font-family: var(--font-sans);
  color: var(--color-quicksand);
  text-transform: uppercase;
  letter-spacing: 3.5px;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 10px;
  display: block;
}
.section-title {
  font-size: clamp(2rem, 3.2vw, 3.2rem);
  color: var(--color-siam-dark);
  line-height: 1.25;
}
.section-desc {
  color: var(--color-muted);
  max-width: 680px;
  margin: 15px auto 0;
  font-size: 1rem;
}

/* Cards & Services */
.luxury-card {
  background: #ffffff;
  border: 1px solid var(--color-card-border);
  border-radius: 6px;
  overflow: hidden;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 18px rgba(99, 100, 86, 0.04);
  height: 100%;
  display: flex;
  flex-direction: column;
}
.luxury-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 35px rgba(99, 100, 86, 0.12);
  border-color: var(--color-quicksand);
}

.luxury-card .card-img-wrap {
  position: relative;
  overflow: hidden;
  height: 230px;
}
.luxury-card .card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}
.luxury-card:hover .card-img-wrap img {
  transform: scale(1.06);
}
.luxury-card .card-img-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  background: rgba(36, 38, 33, 0.85);
  backdrop-filter: blur(4px);
  color: var(--color-satin-linen);
  font-size: 0.72rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid rgba(239, 237, 227, 0.2);
}

.luxury-card .card-body {
  padding: 28px 24px 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}
.luxury-card .card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  font-size: 0.8rem;
  color: var(--color-muted);
}
.luxury-card .card-price {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-siam-dark);
}
.luxury-card .card-title {
  font-size: 1.45rem;
  margin-bottom: 12px;
  line-height: 1.3;
}
.luxury-card .card-text {
  font-size: 0.92rem;
  color: var(--color-muted);
  margin-bottom: 20px;
  flex-grow: 1;
}

/* Pillar Showcase Feature Cards */
.pillar-card {
  background: #ffffff;
  border: 1px solid var(--color-card-border);
  padding: 45px 35px;
  border-radius: 6px;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}
.pillar-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-siam);
  transition: var(--transition-smooth);
}
.pillar-card:hover::before {
  height: 5px;
  background: var(--color-gold);
}
.pillar-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 18px 40px rgba(99, 100, 86, 0.1);
}
.pillar-icon-box {
  width: 64px;
  height: 64px;
  background-color: var(--color-satin-linen);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--color-siam);
  font-size: 1.6rem;
  transition: var(--transition-smooth);
}
.pillar-card:hover .pillar-icon-box {
  background-color: var(--color-siam);
  color: var(--color-satin-linen);
}

/* Gallery Grid & Lightbox */
.gallery-filter-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 35px;
}
.gallery-filter-btn {
  background: #ffffff;
  border: 1px solid var(--color-malta);
  color: var(--color-siam);
  padding: 8px 22px;
  font-size: 0.8rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: 30px;
  transition: var(--transition-smooth);
  cursor: pointer;
}
.gallery-filter-btn:hover,
.gallery-filter-btn.active {
  background: var(--color-siam);
  color: #ffffff;
  border-color: var(--color-siam);
}

.gallery-item {
  position: relative;
  border-radius: 6px;
  overflow: hidden;
  height: 320px;
  margin-bottom: 24px;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(99, 100, 86, 0.08);
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.gallery-item:hover img {
  transform: scale(1.08);
}
.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(36, 38, 33, 0.92) 0%, rgba(36, 38, 33, 0.2) 60%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  color: #ffffff;
  opacity: 0;
  transition: var(--transition-smooth);
}
.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

/* Testimonials Carousel / Cards */
.testimonial-card {
  background: #ffffff;
  border: 1px solid var(--color-card-border);
  padding: 35px 30px;
  border-radius: 6px;
  box-shadow: 0 4px 20px rgba(99, 100, 86, 0.04);
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
}
.testimonial-card .quote-icon {
  font-size: 2.2rem;
  color: var(--color-quicksand);
  opacity: 0.4;
  margin-bottom: 15px;
}
.testimonial-card .review-text {
  font-style: italic;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--color-body-text);
  margin-bottom: 25px;
  flex-grow: 1;
}
.testimonial-user {
  display: flex;
  align-items: center;
  gap: 15px;
}
.testimonial-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-quicksand);
}
.testimonial-meta h5 {
  margin: 0;
  font-size: 1.15rem;
}
.testimonial-meta span {
  font-size: 0.78rem;
  color: var(--color-muted);
}
.star-rating {
  color: var(--color-gold);
  font-size: 0.85rem;
  margin-bottom: 12px;
}

/* FAQ Accordion */
.accordion-luxury .accordion-item {
  border: 1px solid var(--color-card-border);
  margin-bottom: 14px;
  border-radius: 6px !important;
  background: #ffffff;
  overflow: hidden;
}
.accordion-luxury .accordion-button {
  background: #ffffff;
  color: var(--color-siam-dark);
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  padding: 20px 24px;
  box-shadow: none;
}
.accordion-luxury .accordion-button:not(.collapsed) {
  background-color: var(--color-satin-linen-soft);
  color: var(--color-siam-dark);
  border-bottom: 1px solid var(--color-card-border);
}
.accordion-luxury .accordion-body {
  padding: 22px 24px;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--color-body-text);
}

/* Booking / Contact Card */
.contact-glass-card {
  background: #ffffff;
  border: 1px solid var(--color-card-border);
  border-radius: 8px;
  padding: 45px 40px;
  box-shadow: 0 10px 30px rgba(99, 100, 86, 0.06);
}
.form-floating > .form-control {
  border-radius: 4px;
  border: 1px solid rgba(183, 160, 143, 0.4);
  background-color: var(--color-satin-linen-soft);
}
.form-floating > .form-control:focus {
  border-color: var(--color-siam);
  box-shadow: 0 0 0 0.25rem rgba(99, 100, 86, 0.15);
  background-color: #ffffff;
}

/* Luxury Footer */
.footer-luxury {
  background-color: var(--color-charcoal);
  color: var(--color-satin-linen);
  padding: 80px 0 30px;
  border-top: 3px solid var(--color-siam);
}
.footer-luxury h5 {
  color: var(--color-satin-linen);
  font-size: 1.35rem;
  margin-bottom: 22px;
  position: relative;
  padding-bottom: 10px;
}
.footer-luxury h5::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 35px;
  height: 2px;
  background-color: var(--color-quicksand);
}
.footer-luxury ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-luxury ul li {
  margin-bottom: 10px;
}
.footer-luxury ul li a {
  color: var(--color-malta);
  font-size: 0.9rem;
  transition: var(--transition-smooth);
}
.footer-luxury ul li a:hover {
  color: var(--color-quicksand-light);
  padding-left: 5px;
}
.footer-bottom {
  border-top: 1px solid rgba(239, 237, 227, 0.12);
  padding-top: 25px;
  margin-top: 55px;
  font-size: 0.82rem;
  color: var(--color-malta);
}

/* Responsive Utilities */
@media (max-width: 991px) {
  .navbar-nav .nav-link {
    padding: 10px 0 !important;
  }
  .contact-glass-card {
    padding: 30px 20px;
  }
}

/* Pillar Image Showcase Enhancement */
.pillar-img-container {
  height: 220px;
  background-color: var(--color-satin-linen);
  overflow: hidden;
  position: relative;
}
.pillar-photo {
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s cubic-bezier(0.25, 1, 0.5, 1);
}
.pillar-card:hover .pillar-photo {
  transform: scale(1.08);
}
.pillar-img-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(36, 38, 33, 0.75);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  color: #ffffff;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.72rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Editorial Sanctuary Section */
.sanctuary-img-wrapper {
  position: relative;
  border-radius: 24px;
  border: 5px solid #ffffff;
}
.sanctuary-floating-badge {
  border-radius: 16px;
  border: 1px solid var(--color-card-border);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  animation: floatCardAnim 5s ease-in-out infinite;
}

/* Left-to-Right Offcanvas Drawer (Mobile Navigation) */
.mobile-luxury-offcanvas {
  width: min(340px, 86vw) !important;
  background: #fbf9f6;
  border-right: 1px solid rgba(183, 160, 143, 0.3);
  box-shadow: 10px 0 40px rgba(0, 0, 0, 0.15);
}
.offcanvas-nav-list .nav-link {
  color: var(--color-charcoal);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 10px 14px;
  border-radius: 8px;
  transition: var(--transition-smooth);
}
.offcanvas-nav-list .nav-link:hover,
.offcanvas-nav-list .nav-link.active {
  background-color: var(--color-satin-linen);
  color: var(--color-siam-dark);
}

/* Floating WhatsApp Widget */
.floating-whatsapp-btn {
  position: fixed;
  bottom: 28px;
  left: 28px;
  background-color: #25d366;
  color: #ffffff !important;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px 12px 16px;
  border-radius: 50px;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.38);
  z-index: 1060;
  text-decoration: none;
  font-family: var(--font-sans);
  font-size: 0.84rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: all 0.35s cubic-bezier(0.25, 1, 0.5, 1);
}
.floating-whatsapp-btn i {
  font-size: 1.45rem;
}
.floating-whatsapp-btn:hover {
  transform: translateY(-4px) scale(1.04);
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.5);
  background-color: #20bd5a;
  color: #ffffff !important;
}
.whatsapp-pulse {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: 50px;
  border: 2px solid #25d366;
  animation: pulseRing 2.2s infinite ease-out;
  pointer-events: none;
  z-index: -1;
}
@keyframes pulseRing {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.2); opacity: 0.2; }
  100% { transform: scale(1.35); opacity: 0; }
}

/* Floating Scroll to Top Button */
.floating-scroll-top-btn {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 48px;
  height: 48px;
  background-color: var(--color-siam);
  border: 1px solid var(--color-gold);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  z-index: 1060;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
  transition: all 0.35s cubic-bezier(0.25, 1, 0.5, 1);
}
.floating-scroll-top-btn.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.floating-scroll-top-btn:hover {
  background-color: var(--color-charcoal);
  color: #ffffff;
  transform: translateY(-4px) scale(1.08);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.28);
}