/* ==========================================================================
   ISLA Shared Design System & Layout Tokens
   Imperial Shipping & Logistics Academy
   ========================================================================== */

/* --------------------------------------------------------------------------
   0. Google Fonts & Global Reset
   -------------------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Cal+Sans&family=Manrope:wght@200;300;400;500;600;700;800&display=swap');

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

html {
  scroll-behavior: auto; /* Handled by Lenis for smooth scroll */
  -webkit-text-size-adjust: 100%;
  -moz-tab-size: 4;
  tab-size: 4;
}

body {
  font-family: var(--font-sans);
  font-weight: 500;
  background-color: var(--color-bg-light);
  color: var(--color-text-primary);
  line-height: 1.65;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --------------------------------------------------------------------------
   1. Design System Tokens (Custom Properties)
   -------------------------------------------------------------------------- */
:root {
  /* Colors - Light Sections */
  --color-bg-light: #F7F6F3;
  --color-bg-light-alt: #EDECE8;
  --color-bg-card: #FFFFFF;
  --color-text-primary: #231F20;
  --color-text-secondary: hsla(345, 4%, 12%, 0.82);
  --color-text-muted: hsla(345, 4%, 12%, 0.55);
  --color-border-light: hsla(345, 4%, 12%, 0.1);

  /* Colors - Dark Sections (Brand Navy) */
  --color-bg-dark: #253A7C;
  --color-bg-dark-surface: #1E306A;
  --color-text-on-dark: #FFFFFF;
  --color-text-on-dark-secondary: hsla(0, 0%, 100%, 0.88);
  --color-text-on-dark-muted: hsla(0, 0%, 100%, 0.62);
  --color-border-dark: hsla(0, 0%, 100%, 0.16);

  /* Shared Accent (Brand Gold) */
  --color-accent: #FFCA17;
  --color-accent-dim: hsla(47, 100%, 54%, 0.18);
  --color-accent-hover: #FFD44D;

  /* Typography */
  --font-heading: 'Cal Sans', system-ui, sans-serif;
  --font-serif:   'Cal Sans', system-ui, sans-serif;
  --font-sans:    'Manrope', system-ui, sans-serif;
  --font-body:    'Manrope', system-ui, sans-serif;

  --font-display: clamp(2.25rem, 4.8vw + 1rem, 5.25rem);
  --font-h1: clamp(2rem, 3.6vw + 1rem, 4.25rem);
  --font-h2: clamp(1.5rem, 2.2vw + 0.8rem, 2.5rem);
  --font-h3: clamp(1.1rem, 0.8vw + 0.9rem, 1.5rem);
  --font-size-body: clamp(1rem, 0.25vw + 0.9rem, 1.125rem);
  --font-caption: clamp(0.8rem, 0.1vw + 0.75rem, 0.9rem);

  /* Spacing Scale (8px Grid) */
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 40px;
  --space-6: 48px;
  --space-8: 64px;
  --space-12: 96px;
  --space-16: 128px;

  /* Motion */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 0.3s;
  --duration-base: 0.8s;
  --duration-slow: 1.2s;
  
  /* Utilities */
  --border-radius: 4px;
  --transition-smooth: all var(--duration-fast) var(--ease-out-expo);
}

/* --------------------------------------------------------------------------
   2. Global Textures & Scrollbar
   -------------------------------------------------------------------------- */
.noise-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
  background-color: var(--color-bg-light);
}

::-webkit-scrollbar-thumb {
  background-color: var(--color-accent-dim);
  border: 2px solid var(--color-bg-light);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background-color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   3. Shared Layout Utilities & Typography Helpers
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

@media (min-width: 768px) {
  .container {
    padding-left: var(--space-8);
    padding-right: var(--space-8);
  }
}

.section-padding {
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
}

@media (min-width: 1024px) {
  .section-padding {
    padding-top: var(--space-16);
    padding-bottom: var(--space-16);
  }
}

.font-serif { font-family: var(--font-serif); }
.font-sans { font-family: var(--font-sans); }

.pre-headline {
  font-family: var(--font-sans);
  font-size: var(--font-caption);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-bg-dark);
  margin-bottom: var(--space-2);
  display: block;
}

.dark-section .pre-headline,
[data-theme="dark"] .pre-headline {
  color: var(--color-accent);
}

.section-headline {
  font-family: var(--font-serif);
  font-size: var(--font-h1);
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.15;
  letter-spacing: 1px;
  margin-bottom: var(--space-3);
}

.dark-section .section-headline,
[data-theme="dark"] .section-headline {
  color: var(--color-text-on-dark);
}

.section-subcopy {
  font-family: var(--font-sans);
  font-size: var(--font-size-body);
  color: var(--color-text-secondary);
  line-height: 1.6;
  max-width: 680px;
  margin-bottom: var(--space-8);
}

.dark-section .section-subcopy,
[data-theme="dark"] .section-subcopy {
  color: var(--color-text-on-dark-secondary);
}

.pull-quote {
  font-family: var(--font-serif);
  font-size: var(--font-h2);
  color: var(--color-accent);
  line-height: 1.25;
  letter-spacing: 0;
}

/* --------------------------------------------------------------------------
   4. Buttons & CTAs
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-sans);
  font-size: var(--font-caption);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-smooth);
  border-radius: var(--border-radius);
  border: 1px solid transparent;
}

.btn-primary-dark {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background-color: transparent;
}

.btn-primary-dark:hover {
  background-color: var(--color-accent);
  color: var(--color-text-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 202, 23, 0.25);
}

.btn-primary-light {
  border-color: var(--color-text-primary);
  color: var(--color-text-on-dark);
  background-color: var(--color-text-primary);
}

.btn-primary-light:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-text-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 202, 23, 0.25);
}

.btn-accent {
  background-color: var(--color-accent);
  color: var(--color-text-primary);
  border-color: var(--color-accent);
  font-weight: 700;
}

.btn-accent:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 202, 23, 0.35);
}

.btn-secondary {
  color: inherit;
  background-color: transparent;
  border: none;
  position: relative;
  padding-left: 0;
  padding-right: 0;
}

.btn-secondary::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--duration-fast) var(--ease-out-expo);
}

.btn-secondary:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* --------------------------------------------------------------------------
   5. Header & Fixed Navigation Bar
   -------------------------------------------------------------------------- */
.header-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 72px;
  z-index: 1010;
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
  background-color: var(--color-bg-dark);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

@media (min-width: 1024px) {
  .header-nav {
    height: 80px;
    background-color: transparent;
    border-bottom: none;
  }
}

.header-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.logo {
  flex-shrink: 0;
  text-decoration: none;
  z-index: 1010;
  display: flex;
  align-items: center;
}

.logo-img {
  display: block;
  height: 64px;
  width: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
  transition: filter var(--duration-fast) var(--ease-out-expo);
}

.header-nav.nav-scrolled .logo-img {
  filter: none;
}

.nav-links {
  display: none;
  list-style: none;
  gap: var(--space-2);
}

@media (min-width: 1200px) {
  .nav-links {
    gap: var(--space-4);
  }
}

.nav-link {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  text-decoration: none;
  position: relative;
  padding: var(--space-1) 0;
  color: var(--color-text-on-dark-secondary);
  transition: color var(--duration-fast) var(--ease-out-expo);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--duration-fast) var(--ease-out-expo);
}

.nav-link.active::after,
.nav-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-link.active {
  color: var(--color-accent) !important;
  font-weight: 700;
}

.nav-action {
  flex-shrink: 0;
  display: none;
  z-index: 1010;
}

.btn-nav-cta {
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  background-color: transparent;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--border-radius);
}

.btn-nav-cta:hover {
  background-color: var(--color-accent);
  color: var(--color-text-primary);
}

/* Nav State 1: Dark (Initial over dark hero) */
.header-nav.nav-dark-state {
  background-color: var(--color-bg-dark);
}

@media (min-width: 1024px) {
  .header-nav.nav-dark-state:not(.nav-scrolled) {
    background-color: transparent;
  }
}

.header-nav.nav-dark-state .nav-link {
  color: var(--color-text-on-dark-secondary);
}
.header-nav.nav-dark-state .nav-link:hover {
  color: var(--color-text-on-dark);
}
.header-nav.nav-dark-state .hamburger span {
  background-color: #FFFFFF;
}

/* Nav State 2: Scrolled (Frosted Glass on scroll) */
.header-nav.nav-scrolled {
  height: 72px;
  background-color: rgba(247, 246, 243, 0.96) !important;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border-light);
  box-shadow: 0 4px 30px rgba(13, 19, 33, 0.05);
}

.header-nav.nav-scrolled .nav-link {
  color: var(--color-text-secondary);
}

.header-nav.nav-scrolled .nav-link:hover {
  color: var(--color-text-primary);
}

.header-nav.nav-scrolled .nav-link.active {
  color: var(--color-bg-dark) !important;
}

.header-nav.nav-scrolled .btn-nav-cta {
  border: 1px solid var(--color-text-primary);
  color: var(--color-text-on-dark);
  background-color: var(--color-text-primary);
}

.header-nav.nav-scrolled .btn-nav-cta:hover {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-text-primary);
}

.header-nav.nav-scrolled .hamburger span {
  background-color: var(--color-text-primary) !important;
}

/* Nav State 3: Light Background State */
.header-nav.nav-light-state:not(.nav-scrolled) {
  background-color: var(--color-bg-dark);
}

@media (min-width: 1024px) {
  .header-nav.nav-light-state:not(.nav-scrolled) {
    background-color: transparent;
  }
}

.header-nav.nav-light-state:not(.nav-scrolled) .logo-img {
  filter: none;
}
.header-nav.nav-light-state:not(.nav-scrolled) .nav-link {
  color: var(--color-text-secondary);
}
.header-nav.nav-light-state:not(.nav-scrolled) .nav-link:hover {
  color: var(--color-text-primary);
}
.header-nav.nav-light-state:not(.nav-scrolled) .hamburger span {
  background-color: #FFFFFF;
}
.header-nav.nav-light-state:not(.nav-scrolled) .btn-nav-cta {
  border: 1px solid var(--color-text-primary);
  color: var(--color-text-primary);
}
.header-nav.nav-light-state:not(.nav-scrolled) .btn-nav-cta:hover {
  background-color: var(--color-text-primary);
  color: var(--color-text-on-dark);
}

/* Hamburger Menu */
.hamburger {
  display: flex !important;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 16px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1010;
  flex-shrink: 0;
  padding: 0;
  margin-left: auto;
}

@media (min-width: 1024px) {
  .hamburger {
    display: none !important;
  }
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: #FFFFFF;
  border-radius: 2px;
  transition: var(--transition-smooth);
}

.header-nav.mobile-nav-open .hamburger span {
  background-color: #FFFFFF !important;
}

.hamburger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.hamburger.open span {
  background-color: #FFFFFF !important;
}

/* Mobile Navigation Overlay */
.mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--color-bg-dark);
  z-index: 1005;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 80px var(--space-4) var(--space-6);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-smooth);
}

.mobile-overlay.open {
  opacity: 1;
  visibility: visible;
}

.mobile-links {
  list-style: none;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: var(--space-5);
}

.mobile-link {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--color-text-on-dark);
  text-decoration: none;
  display: block;
  padding: 6px 12px;
  transition: var(--transition-smooth);
}

.mobile-link:hover,
.mobile-link.active {
  color: var(--color-accent);
}

.mobile-cta {
  display: inline-block;
  width: auto;
  min-width: 200px;
  max-width: 280px;
  text-align: center;
  padding: 12px 28px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background-color: var(--color-accent);
  color: var(--color-bg-dark) !important;
  border-radius: var(--border-radius);
  transition: var(--transition-smooth);
  box-shadow: 0 4px 14px rgba(255, 202, 23, 0.25);
}

.mobile-cta:hover {
  background-color: #E5B515;
  color: var(--color-bg-dark) !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 202, 23, 0.35);
}

/* Desktop Breakpoint for Header */
@media (min-width: 1024px) {
  .nav-links {
    display: flex;
  }
  .nav-action {
    display: block;
  }
  .hamburger {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   6. Shared Hero & Breadcrumb Utilities
   -------------------------------------------------------------------------- */
.inner-hero {
  position: relative;
  padding-top: calc(80px + var(--space-8));
  padding-bottom: var(--space-12);
  background-color: var(--color-bg-dark);
  color: var(--color-text-on-dark);
  overflow: hidden;
}

.inner-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 85% 15%, rgba(255, 202, 23, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 6px 14px;
  background: rgba(255, 202, 23, 0.12);
  border: 1px solid rgba(255, 202, 23, 0.3);
  border-radius: 50px;
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.hero-tag .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
  display: inline-block;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-size: var(--font-caption);
  color: var(--color-text-on-dark-muted);
  margin-bottom: var(--space-3);
}

.breadcrumb a {
  color: var(--color-text-on-dark-secondary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out-expo);
}

.breadcrumb a:hover {
  color: var(--color-accent);
}

.breadcrumb .separator {
  color: var(--color-accent);
  font-size: 10px;
}

/* --------------------------------------------------------------------------
   7. Shared CTA Banner Component
   -------------------------------------------------------------------------- */
.cta-banner-section {
  background-color: var(--color-bg-dark);
  color: var(--color-text-on-dark);
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--color-border-dark);
}

.cta-banner-section::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 202, 23, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.cta-banner-box {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  align-items: flex-start;
  justify-content: space-between;
  padding: var(--space-8) 0;
}

@media (min-width: 1024px) {
  .cta-banner-box {
    flex-direction: row;
    align-items: center;
    padding: var(--space-12) 0;
  }
}

.cta-banner-content {
  max-width: 640px;
}

.cta-banner-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* --------------------------------------------------------------------------
   8. Footer Component
   -------------------------------------------------------------------------- */
.footer-main {
  background-color: var(--color-bg-dark);
  color: var(--color-text-on-dark);
  padding-top: var(--space-8);
  padding-bottom: var(--space-4);
  border-top: 1px solid var(--color-border-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.footer-col-brand .logo {
  margin-bottom: var(--space-3);
  display: block;
}

.footer-logo .logo-img {
  filter: brightness(0) invert(1);
}

.footer-col-brand p {
  font-family: var(--font-sans);
  font-size: var(--font-caption);
  color: var(--color-text-on-dark-secondary);
  line-height: 1.6;
}

.footer-col-title {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
  display: block;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-links a {
  font-family: var(--font-sans);
  font-size: var(--font-caption);
  color: var(--color-text-on-dark-secondary);
  text-decoration: none;
  transition: var(--transition-smooth);
}

.footer-links a:hover {
  color: var(--color-accent);
}

.footer-contact-details {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer-contact-details li {
  font-family: var(--font-sans);
  font-size: var(--font-caption);
  color: var(--color-text-on-dark-secondary);
  line-height: 1.5;
}

.footer-contact-details a {
  color: var(--color-text-on-dark-secondary);
  text-decoration: none;
  transition: var(--transition-smooth);
}

.footer-contact-details a:hover {
  color: var(--color-accent);
}

.footer-social-links {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-3);
}

.social-icon-link {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: #fff;
  text-decoration: none;
  transition: transform var(--duration-fast) var(--ease-out-expo);
}

.social-icon-link:hover {
  transform: translateY(-2px);
}

.social-icon-link.instagram {
  background: radial-gradient(circle at 30% 107%, #fdf497 0%, #fdf497 5%, #fd5949 45%, #d6249f 60%, #285aeb 90%);
}

.social-icon-link.facebook { background-color: #1877F2; }
.social-icon-link.linkedin { background-color: #0A66C2; }
.social-icon-link.x-twitter { background-color: #000000; }

.contact-map {
  width: 80%;
  margin-top: 10px;
  border-radius: 15px;
  overflow: hidden;
}

.contact-map iframe {
  display: block;
  width: 55%;
  height: 100px;
  border-radius: 15px;
  border: 0;
}

.contact-map-item {
  list-style: none;
}

.footer-address-link {
  color: var(--color-text-on-dark-secondary);
  text-decoration: none;
  transition: var(--transition-smooth);
}

.footer-bottom {
  border-top: 1px solid var(--color-border-dark);
  padding-top: var(--space-4);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  text-align: center;
}

.footer-copyright {
  font-family: var(--font-sans);
  font-size: 11px;
  color: var(--color-text-on-dark-muted);
}

.footer-legal-links {
  display: flex;
  gap: var(--space-3);
}

.footer-legal-links a {
  font-family: var(--font-sans);
  font-size: 11px;
  color: var(--color-text-on-dark-muted);
  text-decoration: none;
  transition: var(--transition-smooth);
}

.footer-legal-links a:hover {
  color: var(--color-accent);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: var(--space-6);
  }
  
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* --------------------------------------------------------------------------
   8.1 Floating WhatsApp CTA Button
   -------------------------------------------------------------------------- */
.floating-whatsapp-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  background-color: #25D366;
  color: #FFFFFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4), 0 4px 12px rgba(0, 0, 0, 0.15);
  z-index: 9999;
  text-decoration: none;
  transition: transform var(--duration-fast) var(--ease-out-expo), box-shadow var(--duration-fast) var(--ease-out-expo), background-color var(--duration-fast) ease;
}

.floating-whatsapp-btn:hover {
  transform: translateY(-4px) scale(1.06);
  background-color: #20ba5a;
  box-shadow: 0 10px 28px rgba(37, 211, 102, 0.55), 0 6px 16px rgba(0, 0, 0, 0.2);
  color: #FFFFFF;
}

.floating-whatsapp-btn:active {
  transform: translateY(0) scale(0.96);
}

@media (max-width: 768px) {
  .floating-whatsapp-btn {
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    font-size: 28px;
  }
}

/* --------------------------------------------------------------------------
   9. Accessibility & Reduced Motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-delay: 0s !important;
    animation-duration: 0s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0s !important;
    scroll-behavior: auto !important;
  }
}