/* 
   prosun.me - Vanilla CSS Stylesheet
   Design System: Minimal Technical SaaS-style UI
*/

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Outfit:wght@500;600;700;800&family=Fira+Code:wght@400;500&display=swap');

:root {
  /* Color Palette */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-light: #eff6ff;
  --accent-success: #16a34a;
  --border-color: #e2e8f0;
  
  /* Fonts */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-display: 'Outfit', var(--font-sans);
  --font-mono: 'Fira Code', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  
  /* Spacing */
  --max-width: 1100px;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.25;
}

h1 {
  font-size: 2.75rem;
  letter-spacing: -0.03em;
}

h2 {
  font-size: 2rem;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

h3 {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}

h4 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1.25rem;
  color: var(--text-secondary);
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.15s ease;
}

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

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section {
  padding-top: 5rem;
  padding-bottom: 5rem;
}

.section-secondary {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 {
  grid-template-columns: 1fr;
}

.grid-3 {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Header & Navigation */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  height: var(--header-height);
}

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

.logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo .accent-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--accent);
  border-radius: 50%;
}

.nav-menu {
  display: none;
  list-style: none;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-weight: 500;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-primary);
}

/* Mobile Menu Toggle */
.mobile-menu-btn {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
}

.mobile-menu-btn span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  transition: transform 0.2s, opacity 0.2s;
}

@media (min-width: 992px) {
  .nav-menu {
    display: flex;
  }
  .mobile-menu-btn {
    display: none;
  }
}

/* Mobile Overlay Menu */
.mobile-overlay {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  height: calc(100vh - var(--header-height));
  background-color: var(--bg-primary);
  z-index: 99;
  display: flex;
  flex-direction: column;
  padding: 2rem 1.5rem;
  gap: 2rem;
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.3s ease, opacity 0.3s ease;
  border-top: 1px solid var(--border-color);
}

.mobile-overlay.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.mobile-nav-link {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.65rem 1.25rem;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  gap: 0.5rem;
}

.btn-primary {
  background-color: var(--text-primary);
  color: var(--bg-primary);
}

.btn-primary:hover {
  background-color: #1e293b;
  color: var(--bg-primary);
}

.btn-secondary {
  background-color: var(--bg-primary);
  border-color: var(--border-color);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background-color: var(--bg-secondary);
}

.btn-accent {
  background-color: var(--accent);
  color: white;
}

.btn-accent:hover {
  background-color: var(--accent-hover);
  color: white;
}

.btn-block {
  display: flex;
  width: 100%;
}

/* Badge tags */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  font-weight: 500;
  border: 1px solid transparent;
}

.badge-blue {
  background-color: var(--accent-light);
  color: var(--accent);
  border-color: rgba(37, 99, 235, 0.1);
}

.badge-success {
  background-color: #f0fdf4;
  color: var(--accent-success);
  border-color: rgba(22, 163, 74, 0.1);
}

/* Hero Styles */
.hero {
  padding-top: 5rem;
  padding-bottom: 5rem;
  border-bottom: 1px solid var(--border-color);
}

.hero-text {
  text-align: center;
}

.hero-title {
  margin-bottom: 1.5rem;
  font-size: 2.25rem;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.hero-image-container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  background-color: white;
  padding: 1.5rem;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.04);
}

@media (min-width: 992px) {
  .hero-text {
    text-align: left;
  }
  .hero-title {
    font-size: 2.75rem;
  }
  .hero-actions {
    justify-content: flex-start;
  }
}

/* Cards (Services, Testimonials, Blogs) */
.card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 2rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
}

.card-clickable {
  display: block;
  color: inherit;
  text-decoration: none;
  cursor: pointer;
}

.card-clickable:hover {
  color: inherit;
}

.card-clickable .card-title {
  color: var(--text-primary);
  transition: color 0.15s ease;
}

.card-clickable:hover .card-title {
  color: var(--accent);
}

.card-clickable .card-link {
  color: var(--accent);
  font-weight: 600;
  transition: color 0.15s ease;
}

.card-clickable:hover .card-link {
  color: var(--accent-hover);
}

.card-title {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.card-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.card-link {
  font-size: 0.95rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

/* Icon box helper */
.icon-box {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-secondary);
  border-radius: 6px;
  margin-bottom: 1.5rem;
  border: 1px solid var(--border-color);
  color: var(--accent);
}

/* Problem-Solution section */
.problem-solution-box {
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.problem-box {
  background-color: #fffafb;
  border: 1px solid #fee2e2;
  border-radius: 8px;
  padding: 2rem;
}

.problem-box h3 {
  color: #991b1b;
}

.solution-box {
  background-color: #fbfdfb;
  border: 1px solid #dcfce7;
  border-radius: 8px;
  padding: 2rem;
}

.solution-box h3 {
  color: var(--accent-success);
}

/* Process Section */
.process-list {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  max-width: 800px;
  margin: 0 auto;
}

.process-step {
  display: flex;
  gap: 1.5rem;
}

.process-number {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  background-color: var(--text-primary);
  color: var(--bg-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
}

.process-content h3 {
  margin-bottom: 0.5rem;
}

/* Tools Used Grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

@media (min-width: 576px) {
  .tools-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 992px) {
  .tools-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.tool-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-align: left;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.tool-card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.04);
  transform: translateY(-2px);
}

.tool-card svg {
  flex-shrink: 0;
}

/* SEO Files / Services Grid */
.tools-grid-seo {
  grid-template-columns: repeat(1, 1fr);
}

@media (min-width: 576px) {
  .tools-grid-seo {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 992px) {
  .tools-grid-seo {
    grid-template-columns: repeat(3, 1fr);
  }
}

.tool-card-seo {
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
}

.tool-card-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-secondary);
}

.tool-card-body {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.tool-card-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
}

.tool-card-desc {
  font-family: var(--font-sans);
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
  font-weight: 400;
}

/* Service Detail Pages Styles */
.service-header {
  padding-top: 5rem;
  padding-bottom: 4rem;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
}

.service-meta-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1.5rem;
  background-color: var(--bg-primary);
  padding: 1.5rem;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  max-width: 500px;
}

.meta-item {
  display: flex;
  flex-direction: column;
}

.meta-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.meta-value {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.service-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 992px) {
  .service-layout {
    grid-template-columns: 2fr 1fr;
  }
}

.service-body-section {
  margin-bottom: 3.5rem;
}

.service-body-section h2 {
  margin-bottom: 1.25rem;
  font-size: 1.65rem;
}

.service-sidebar {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.sidebar-widget {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.5rem;
}

/* Bullet list override for premium feel */
.bullet-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.bullet-list li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--text-secondary);
}

.bullet-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
}

/* FAQ Accordion */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  border: 1px solid var(--border-color);
  border-radius: 6px;
  overflow: hidden;
}

.faq-question {
  width: 100%;
  text-align: left;
  background-color: var(--bg-primary);
  border: none;
  padding: 1.25rem 1.5rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color 0.15s ease;
}

.faq-question:hover {
  background-color: var(--bg-secondary);
}

.faq-question::after {
  content: "+";
  font-size: 1.25rem;
  font-weight: normal;
  color: var(--text-muted);
}

.faq-item.active .faq-question::after {
  content: "−";
}

.faq-answer {
  background-color: var(--bg-primary);
  padding: 0;
  max-height: 0;
  overflow: hidden;
  transition: padding 0.25s ease, max-height 0.25s ease;
  border-top: 0 solid var(--border-color);
}

.faq-item.active .faq-answer {
  padding: 1.25rem 1.5rem;
  max-height: 500px;
  border-top-width: 1px;
}

/* Contact Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 600px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-primary);
}

.form-control {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  outline: none;
  transition: border-color 0.15s ease;
  width: 100%;
}

.form-control:focus {
  border-color: var(--accent);
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

/* Pricing Page */
.pricing-tabs {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 3rem;
}

.pricing-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr;
}

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

@media (min-width: 1200px) {
  .pricing-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.pricing-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  position: relative;
}

.pricing-card.featured {
  border-color: var(--accent);
  box-shadow: 0 4px 30px rgba(37, 99, 235, 0.05);
}

.pricing-badge {
  position: absolute;
  top: 1rem;
  right: 1.5rem;
}

.pricing-price {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  margin-top: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
  white-space: nowrap;
  letter-spacing: -0.02em;
}

.pricing-price span {
  font-size: 1rem;
  font-weight: normal;
  color: var(--text-secondary);
}

.pricing-card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  min-height: 4.5rem;
  line-height: 1.5;
}

.pricing-btn {
  font-size: 0.85rem;
  padding-left: 0.5rem;
  padding-right: 0.5rem;
  white-space: nowrap;
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1.5rem;
  margin-bottom: 2.5rem;
  flex-grow: 1;
}

.pricing-features li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.pricing-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent-success);
  font-weight: bold;
}

/* Blog Styles */
.blog-post-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.blog-date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.blog-post-header {
  padding-top: 6rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--border-color);
  max-width: 800px;
  margin: 0 auto;
}

.blog-post-title {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.blog-post-meta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.blog-post-container {
  max-width: 720px;
  margin: 0 auto;
  padding-top: 4rem;
  padding-bottom: 6rem;
}

.blog-content {
  font-size: 1.1rem;
  line-height: 1.75;
  color: #1e293b;
}

.blog-content p {
  margin-bottom: 1.75rem;
}

.blog-content h2 {
  font-size: 1.75rem;
  margin-top: 3rem;
  margin-bottom: 1.25rem;
}

.blog-content h3 {
  font-size: 1.35rem;
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.blog-content ul, .blog-content ol {
  margin-bottom: 1.75rem;
  padding-left: 1.5rem;
}

.blog-content li {
  margin-bottom: 0.5rem;
}

.blog-content code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background-color: var(--bg-tertiary);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  color: #0f172a;
}

.blog-content pre {
  background-color: #0f172a;
  padding: 1.5rem;
  border-radius: 8px;
  overflow-x: auto;
  margin-bottom: 2rem;
  border: 1px solid #1e293b;
}

.blog-content pre code {
  background-color: transparent;
  padding: 0;
  color: #f8fafc;
  font-size: 0.9rem;
}

/* Call to Action Banner */
.cta-banner {
  background-color: var(--text-primary);
  color: var(--bg-primary);
  border-radius: 12px;
  padding: 4rem 2rem;
  text-align: center;
  margin-top: 3rem;
  margin-bottom: 3rem;
}

.cta-banner h2, .cta-banner p {
  color: var(--bg-primary);
}

.cta-banner p {
  opacity: 0.85;
  max-width: 600px;
  margin: 0 auto 2rem;
}

/* Footer */
footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding-top: 5rem;
  padding-bottom: 3rem;
  color: var(--text-secondary);
}

.footer-grid {
  display: grid;
  gap: 3rem;
  grid-template-columns: 1fr;
  margin-bottom: 4rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 2fr repeat(3, 1fr);
  }
}

.footer-brand h3 {
  margin-bottom: 1rem;
}

.footer-column h4 {
  color: var(--text-primary);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.footer-link:hover {
  color: var(--text-primary);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1rem;
  font-size: 0.85rem;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    text-align: left;
  }
}

.footer-bottom-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem 1.5rem;
}

@media (min-width: 768px) {
  .footer-bottom-links {
    justify-content: flex-end;
  }
}

@media (max-width: 768px) {
  footer {
    padding-bottom: 6.5rem;
  }
}

/* Schema verification styles (hidden) */
.schema-data {
  display: none !important;
}

/* Page not found (404) & general layout states */
.error-page {
  padding: 8rem 0;
  text-align: center;
}
.error-page h1 {
  font-size: 4rem;
  margin-bottom: 1rem;
}
.error-page p {
  margin-bottom: 2rem;
}

/* Sitemap Page Styling */
.sitemap-list {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.sitemap-section h3 {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
  margin-bottom: 1rem;
}
.sitemap-links {
  list-style: none;
  display: grid;
  gap: 0.5rem 1.5rem;
  grid-template-columns: 1fr;
}
@media (min-width: 768px) {
  .sitemap-links {
    grid-template-columns: repeat(2, 1fr);
  }
}
.sitemap-links a {
  font-size: 0.95rem;
}

/* Floating WhatsApp Widget */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  background-color: #25d366;
  color: white;
  border-radius: 50%;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3), 0 8px 24px rgba(15, 23, 42, 0.08);
  z-index: 999;
  transition: transform 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275), background-color 0.2s ease, box-shadow 0.2s ease;
  cursor: pointer;
  text-decoration: none;
}

.whatsapp-float:hover {
  background-color: #20ba5a;
  transform: scale(1.08);
  box-shadow: 0 6px 16px rgba(37, 211, 102, 0.4), 0 10px 28px rgba(15, 23, 42, 0.12);
  color: white;
}

.whatsapp-float::before, .whatsapp-float::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: #25d366;
  opacity: 0.15;
  z-index: -1;
}

.whatsapp-float::before {
  animation: pulse-ring 2.5s infinite ease-in-out;
}

.whatsapp-float::after {
  animation: pulse-ring 2.5s infinite ease-in-out 1.25s;
}

@keyframes pulse-ring {
  0% {
    transform: scale(1);
    opacity: 0.2;
  }
  100% {
    transform: scale(1.4);
    opacity: 0;
  }
}

.whatsapp-icon {
  margin-top: 1px;
}

@media (max-width: 768px) {
  .whatsapp-float {
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
  }
}