/* ==========================================================================
   EIBO SERVICES PVT. LTD. — MASTER DESIGN SYSTEM
   Premium White-and-Blue Corporate Technology Identity
   Building Business Since 2020
   ========================================================================== */

:root {
  /* Core Brand Tokens (derived from official logo) */
  --brand-primary: #205D6B;       /* EIBO Deep Teal */
  --brand-blue: #168CC4;          /* EIBO Bright Blue */
  --brand-cyan: #31B8DE;          /* EIBO Cyan */
  --brand-dark-teal: #16434D;     /* Deep Shadow Teal */
  --brand-white: #FFFFFF;         /* Pure White */
  
  /* Surface Tokens (65-75% white & light, 15-25% pale blue & neutrals) */
  --surface-ice: #F2FAFD;          /* Crisp Ice Blue */
  --surface-blue: #E7F5FB;         /* Gentle Pale Blue */
  --surface-neutral: #F6F8FA;      /* Subtle Neutral Gray */
  --surface-card: #FFFFFF;         /* Solid White Card */
  --surface-card-subtle: #FAFDFE;  /* Very Light Blue Tint Card */
  --surface-glass: rgba(255, 255, 255, 0.88);
  --surface-glass-dark: rgba(22, 67, 77, 0.92);

  /* Typography Colors */
  --text-primary: #17313D;        /* Deep Teal Navy for Crisp Readability */
  --text-secondary: #5A717F;      /* Soft Slate for Descriptions */
  --text-muted: #8295A2;          /* Muted Gray-Teal for Meta & Labels */
  --text-inverse: #FFFFFF;        /* Pure White on Dark Accents */

  /* Structural & Border Tokens */
  --border-color: #DCE7ED;        /* Subtle Clean Border */
  --border-light: #EBF2F6;        /* Ultra Subtle Divider */
  --border-focus: #168CC4;        /* Active Input Accent */

  /* Gradients */
  --gradient-brand: linear-gradient(135deg, #205D6B 0%, #168CC4 60%, #31B8DE 100%);
  --gradient-blue: linear-gradient(135deg, #168CC4 0%, #31B8DE 100%);
  --gradient-subtle: linear-gradient(180deg, #FFFFFF 0%, #F2FAFD 100%);
  --gradient-surface: linear-gradient(135deg, #F2FAFD 0%, #E7F5FB 100%);
  --gradient-glow: radial-gradient(circle, rgba(49, 184, 222, 0.15) 0%, rgba(255, 255, 255, 0) 70%);

  /* Shadows */
  --shadow-xs: 0 1px 3px rgba(23, 49, 61, 0.05);
  --shadow-sm: 0 4px 12px rgba(23, 49, 61, 0.06);
  --shadow-md: 0 8px 24px rgba(23, 49, 61, 0.08);
  --shadow-lg: 0 16px 40px rgba(23, 49, 61, 0.10);
  --shadow-xl: 0 24px 60px rgba(23, 49, 61, 0.14);
  --shadow-glow: 0 8px 30px rgba(22, 140, 196, 0.25);
  --shadow-inner: inset 0 2px 4px rgba(23, 49, 61, 0.03);

  /* Typography Stacks */
  --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, Menlo, monospace;

  /* Sizing & Transitions */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  --transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.5s cubic-bezier(0.16, 1, 0.3, 1);

  --container-max: 1280px;
  --header-height: 84px;
}

/* ==========================================================================
   CSS RESET & BASE STYLES
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text-primary);
  background-color: var(--brand-white);
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Selection */
::selection {
  background-color: rgba(49, 184, 222, 0.25);
  color: var(--brand-primary);
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.25rem, 4.5vw, 3.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(1.85rem, 3.2vw, 2.75rem);
  letter-spacing: -0.025em;
}

h3 {
  font-size: clamp(1.35rem, 2vw, 1.75rem);
}

h4 {
  font-size: 1.2rem;
}

p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 1rem;
}

p.lead {
  font-size: 1.22rem;
  line-height: 1.6;
  color: var(--text-primary);
  font-weight: 400;
}

a {
  color: var(--brand-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--brand-primary);
}

img, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

/* ==========================================================================
   LAYOUT CONTAINERS & UTILITIES
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 28px;
  padding-right: 28px;
}

.container-narrow {
  max-width: 960px;
}

.container-wide {
  max-width: 1400px;
}

.section {
  padding-top: 100px;
  padding-bottom: 100px;
  position: relative;
}

.section-sm {
  padding-top: 60px;
  padding-bottom: 60px;
}

.section-lg {
  padding-top: 130px;
  padding-bottom: 130px;
}

/* Background surfaces */
.bg-white { background-color: var(--brand-white); }
.bg-ice { background-color: var(--surface-ice); }
.bg-pale-blue { background-color: var(--surface-blue); }
.bg-neutral { background-color: var(--surface-neutral); }
.bg-gradient-subtle { background: var(--gradient-subtle); }
.bg-gradient-surface { background: var(--gradient-surface); }

/* Section Header Presentation */
.section-header {
  margin-bottom: 56px;
  text-align: center;
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
}

.section-header.text-left {
  text-align: left;
  margin-left: 0;
}

.section-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-top: 14px;
}

/* Brand Eyebrow Badge */
.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: rgba(22, 140, 196, 0.08);
  border: 1px solid rgba(22, 140, 196, 0.22);
  color: var(--brand-primary);
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.brand-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-cyan);
  box-shadow: 0 0 8px var(--brand-cyan);
}

.brand-badge.badge-white {
  background: rgba(255, 255, 255, 0.95);
  border-color: rgba(22, 140, 196, 0.2);
  box-shadow: var(--shadow-sm);
}

/* Text Gradient Highlights */
.text-gradient {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline;
}

.text-gradient-blue {
  background: var(--gradient-blue);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline;
}

/* ==========================================================================
   BUTTONS & INTERACTIVE ELEMENTS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 28px;
  font-family: var(--font-heading);
  font-size: 0.98rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  outline: none;
  text-align: center;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-brand);
  color: var(--brand-white);
  box-shadow: 0 4px 18px rgba(22, 140, 196, 0.28);
}

.btn-primary:hover {
  color: var(--brand-white);
  transform: translateY(-2px);
  box-shadow: 0 8px 26px rgba(22, 140, 196, 0.38);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--brand-white);
  color: var(--brand-primary);
  border-color: var(--border-color);
  box-shadow: var(--shadow-xs);
}

.btn-secondary:hover {
  background: var(--surface-ice);
  border-color: var(--brand-blue);
  color: var(--brand-blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn-outline-blue {
  background: transparent;
  color: var(--brand-blue);
  border: 1.5px solid var(--brand-blue);
}

.btn-outline-blue:hover {
  background: var(--brand-blue);
  color: var(--brand-white);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.88rem;
  border-radius: var(--radius-xs);
}

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 50%;
}

.btn-arrow svg {
  transition: transform var(--transition-fast);
}

.btn-arrow:hover svg {
  transform: translateX(4px);
}

/* ==========================================================================
   NAVIGATION BAR & HEADER
   ========================================================================== */

.header-site {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(220, 231, 237, 0.8);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.header-site.scrolled {
  height: 74px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 4px 20px rgba(23, 49, 61, 0.07);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-logo-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo-img {
  height: 44px;
  width: auto;
  object-fit: contain;
  transition: transform var(--transition-fast);
}

.header-site.scrolled .brand-logo-img {
  height: 38px;
}

.brand-logo-wrap:hover .brand-logo-img {
  transform: scale(1.02);
}

/* Main Navigation Menu */
.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 4px;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 10px 14px;
  font-family: var(--font-heading);
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--text-primary);
  border-radius: var(--radius-xs);
  transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-item.active .nav-link {
  color: var(--brand-blue);
  background: rgba(22, 140, 196, 0.05);
}

.nav-link svg.chevron {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.nav-item:hover .nav-link svg.chevron {
  transform: rotate(180deg);
}

/* Dropdown Menu */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  width: 270px;
  background: var(--brand-white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-normal);
  z-index: 1010;
}

.nav-item:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.92rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.dropdown-link:hover {
  background: var(--surface-ice);
  color: var(--brand-blue);
  padding-left: 16px;
}

.dropdown-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-xs);
  background: rgba(22, 140, 196, 0.1);
  color: var(--brand-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* Mega Menu for Services */
.dropdown-mega {
  width: 780px;
  left: -200px;
  padding: 24px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.mega-col-title {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--brand-primary);
  margin-bottom: 12px;
  padding-left: 8px;
}

/* Header Action CTA */
.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-cta {
  display: inline-flex;
}

/* Mobile Toggle Hamburger */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--text-primary);
  border-radius: var(--radius-xs);
}

.mobile-nav-toggle:focus {
  outline: 2px solid var(--brand-blue);
}

/* ==========================================================================
   MOBILE NAVIGATION DRAWER
   ========================================================================== */

.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 400px;
  height: 100vh;
  background: var(--brand-white);
  box-shadow: -10px 0 30px rgba(23, 49, 61, 0.15);
  z-index: 1100;
  overflow-y: auto;
  transition: right var(--transition-normal);
  padding: 24px;
  display: flex;
  flex-direction: column;
}

.mobile-drawer.open {
  right: 0;
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 24px;
}

.mobile-drawer-close {
  background: none;
  border: none;
  cursor: pointer;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--surface-neutral);
  color: var(--text-primary);
}

.mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mobile-nav-item .mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  border-radius: var(--radius-sm);
}

.mobile-nav-link:hover {
  background: var(--surface-ice);
  color: var(--brand-blue);
}

.mobile-subnav {
  padding-left: 16px;
  display: none;
  list-style: none;
  flex-direction: column;
  gap: 4px;
  margin-top: 4px;
  margin-bottom: 8px;
}

.mobile-subnav.active {
  display: flex;
}

.mobile-subnav-link {
  display: block;
  padding: 8px 12px;
  font-size: 0.94rem;
  color: var(--text-secondary);
}

.mobile-subnav-link:hover {
  color: var(--brand-blue);
}

.mobile-drawer-footer {
  margin-top: auto;
  padding-top: 28px;
  border-top: 1px solid var(--border-color);
}

.drawer-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(23, 49, 61, 0.4);
  backdrop-filter: blur(4px);
  z-index: 1050;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.drawer-backdrop.active {
  opacity: 1;
  visibility: visible;
}

/* ==========================================================================
   CARDS & GRID SYSTEMS
   ========================================================================== */

.grid {
  display: grid;
  gap: 28px;
}

.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--surface-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(22, 140, 196, 0.4);
}

.card-icon {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-sm);
  background: var(--surface-ice);
  border: 1px solid rgba(22, 140, 196, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-blue);
  margin-bottom: 22px;
  transition: all var(--transition-fast);
}

.card:hover .card-icon {
  background: var(--brand-blue);
  color: var(--brand-white);
  transform: scale(1.08);
  box-shadow: var(--shadow-glow);
}

.card-title {
  font-size: 1.3rem;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.card-desc {
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.tag {
  display: inline-block;
  padding: 4px 10px;
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: var(--radius-xs);
  background: var(--surface-neutral);
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
}

/* ==========================================================================
   FOOTER COMPONENT
   ========================================================================== */

.site-footer {
  background: #0F2631; /* Deepest enterprise navy-teal for premium foundation */
  color: #B5C6D1;
  padding-top: 90px;
  padding-bottom: 40px;
  border-top: 1px solid rgba(49, 184, 222, 0.2);
  position: relative;
  overflow: hidden;
}

.site-footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 20%;
  width: 600px;
  height: 250px;
  background: radial-gradient(circle, rgba(22, 140, 196, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.footer-top {
  display: grid;
  grid-template-columns: 2.2fr 1fr 1fr 1fr 1.3fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-brand p {
  color: #93A9B6;
  font-size: 0.96rem;
  line-height: 1.65;
  margin-top: 18px;
  margin-bottom: 24px;
  max-width: 320px;
}

.footer-logo-img {
  height: 48px;
  width: auto;
  filter: brightness(1.2);
}

.footer-col-title {
  color: var(--brand-white);
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: #93A9B6;
  font-size: 0.92rem;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-links a:hover {
  color: var(--brand-cyan);
  transform: translateX(4px);
}

.footer-contact-item {
  display: flex;
  gap: 12px;
  margin-bottom: 14px;
  font-size: 0.92rem;
  color: #93A9B6;
}

.footer-contact-item svg {
  color: var(--brand-cyan);
  flex-shrink: 0;
  margin-top: 4px;
}

.footer-contact-item a {
  color: #93A9B6;
}

.footer-contact-item a:hover {
  color: var(--brand-cyan);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  border-top: 1px solid rgba(220, 231, 237, 0.12);
  font-size: 0.88rem;
  color: #6C8290;
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a {
  color: #6C8290;
}

.footer-bottom-links a:hover {
  color: var(--brand-cyan);
}

/* Social icons */
.social-links {
  display: flex;
  gap: 12px;
}

.social-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-white);
  transition: all var(--transition-fast);
}

.social-icon:hover {
  background: var(--brand-blue);
  color: var(--brand-white);
  transform: translateY(-3px);
  box-shadow: 0 4px 12px rgba(22, 140, 196, 0.4);
}

/* ==========================================================================
   MODAL COMPONENT (Quick Consultation)
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 38, 49, 0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal-container {
  background: var(--brand-white);
  border-radius: var(--radius-lg);
  max-width: 620px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 40px;
  box-shadow: var(--shadow-xl);
  position: relative;
  transform: scale(0.95) translateY(20px);
  transition: all var(--transition-smooth);
}

.modal-backdrop.active .modal-container {
  transform: scale(1) translateY(0);
}

.modal-close-btn {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--surface-neutral);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: var(--surface-blue);
  color: var(--brand-blue);
  transform: rotate(90deg);
}

/* Scroll To Top Button */
.btn-scroll-top {
  position: fixed;
  bottom: 30px;
  left: 30px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--brand-white);
  color: var(--brand-primary);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all var(--transition-fast);
  z-index: 900;
}

.btn-scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.btn-scroll-top:hover {
  background: var(--brand-blue);
  color: var(--brand-white);
  border-color: var(--brand-blue);
  transform: translateY(-2px);
}