/* =========================================
   Metro Gold Melting & Testing Center
   Main Stylesheet - Pure CSS3
   Theme: White + Gold (#d4af37)
   ========================================= */

/* ===== CSS Variables ===== */
:root {
  --gold: #d4af37;
  --gold-light: #e6c860;
  --gold-dark: #b8960f;
  --white: #ffffff;
  --black: #1a1a1a;
  --gray-light: #f5f5f5;
  --gray: #666666;
  --gray-dark: #333333;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 8px 30px rgba(212, 175, 55, 0.25);
  --transition: all 0.3s ease;
  --radius: 8px;
  --font-main: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  background-color: var(--white);
  color: var(--gray-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul, ol {
  list-style: none;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  outline: none;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--black);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }
h4 { font-size: clamp(1.1rem, 2vw, 1.25rem); }

p {
  color: var(--gray);
  font-size: clamp(0.95rem, 2vw, 1.05rem);
}

/* ===== Utility Classes ===== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 80px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 50px;
}

.section-title h2 {
  margin-bottom: 15px;
  position: relative;
  display: inline-block;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--gold-dark), var(--gold), var(--gold-dark));
}

.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: var(--white);
  border: 2px solid transparent;
}

.btn-primary:hover {
  background: var(--gold-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(212, 175, 55, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--gold);
  border: 2px solid var(--gold);
}

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

.text-gold {
  color: var(--gold);
}

/* ===== Gold Shimmer Animation ===== */
@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

.shimmer {
  background: linear-gradient(
    90deg,
    var(--gold-dark) 0%,
    var(--gold-light) 25%,
    var(--gold) 50%,
    var(--gold-light) 75%,
    var(--gold-dark) 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 3s linear infinite;
}

/* ===== Pulse/Blink Animation ===== */
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.02); }
}

.pulse {
  animation: pulse 0.6s ease-in-out;
}

@keyframes blink {
  0%, 100% { box-shadow: 0 0 0 0 rgba(212, 175, 55, 0.4); }
  50% { box-shadow: 0 0 20px 5px rgba(212, 175, 55, 0.6); }
}

.blink {
  animation: blink 0.8s ease-in-out;
}

/* ===== Top Marquee Bar ===== */
.top-bar {
  background: linear-gradient(135deg, var(--black), var(--gray-dark));
  color: var(--gold);
  padding: 10px 0;
  overflow: hidden;
  position: relative;
}

.marquee-wrapper {
  width: 100%;
  overflow: hidden;
}

.marquee-content {
  display: flex;
  white-space: nowrap;
  animation: marquee 25s linear infinite;
}

.marquee-content:hover {
  animation-play-state: paused;
}

.marquee-content span {
  padding: 0 50px;
  font-size: 0.9rem;
  font-weight: 500;
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ===== Header & Navigation ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo img {
  height: 80px;
  width: auto;
}

.logo-text {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--black);
  line-height: 1.2;
}

.logo-text span {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--gold);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 35px;
}

.nav-menu a {
  font-weight: 500;
  color: var(--gray-dark);
  position: relative;
  padding: 5px 0;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gold);
  transition: var(--transition);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  width: 100%;
}

.nav-menu a.active {
  color: var(--gold);
}

/* Hamburger Menu */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 28px;
  height: 3px;
  background: var(--black);
  border-radius: 2px;
  transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

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

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* ===== Mobile Navigation ===== */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--white);
    flex-direction: column;
    justify-content: center;
    gap: 30px;
    box-shadow: -5px 0 30px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
    z-index: 1000;
  }

  .nav-menu.active {
    right: 0;
  }

  .nav-menu a {
    font-size: 1.2rem;
  }
}

/* ===== Hero Banner Slider ===== */
.hero-slider {
  position: relative;
  width: 100%;
  height: 70vh;
  min-height: 500px;
  overflow: hidden;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease-in-out;
  background-size: cover;
  background-position: center;
}

.slide.active {
  opacity: 1;
}

.slide-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.4));
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 20px;
}

.slide-content {
  max-width: 700px;
  color: var(--white);
}

.slide-content h1 {
  color: var(--white);
  margin-bottom: 20px;
}

.slide-content p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.2rem;
  margin-bottom: 30px;
}

.slide-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Slider Controls */
.slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.2);
  border: 2px solid var(--gold);
  border-radius: 50%;
  color: var(--gold);
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
  z-index: 10;
}

.slider-arrow:hover {
  background: var(--gold);
  color: var(--white);
}

.slider-arrow.prev { left: 20px; }
.slider-arrow.next { right: 20px; }

.slider-dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 10;
}

.slider-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: var(--transition);
}

.slider-dot.active {
  background: var(--gold);
  transform: scale(1.2);
}

/* ===== Service Cards Grid ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 30px;
}

.service-card {
  background: var(--white);
  border: 1px solid #eee;
  border-radius: var(--radius);
  padding: 35px 25px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--gold-dark), var(--gold), var(--gold-dark));
  transform: scaleX(0);
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
  border-color: var(--gold);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto 20px;
  background: var(--gray-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--gold);
  transition: var(--transition);
}

.service-card:hover .service-icon {
  background: var(--gold);
  color: var(--white);
}

.service-card h4 {
  margin-bottom: 12px;
}

/* ===== Why Choose Us ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 40px;
}

.feature-item {
  text-align: center;
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  border: 2px solid var(--gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--gold);
  position: relative;
}

.feature-icon::before {
  content: '';
  position: absolute;
  inset: 5px;
  border: 1px dashed var(--gold);
  border-radius: 50%;
}

.feature-item h4 {
  margin-bottom: 10px;
}

/* ===== Process Timeline ===== */
.timeline {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 20px;
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 10%;
  right: 10%;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light), var(--gold));
}

.timeline-step {
  flex: 1;
  min-width: 200px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.step-number {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  background: var(--white);
  border: 3px solid var(--gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gold);
}

.timeline-step h4 {
  margin-bottom: 8px;
}

/* ===== Live Rate Cards ===== */
.rate-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.rate-card {
  background: linear-gradient(135deg, var(--white), var(--gray-light));
  border: 2px solid #eee;
  border-radius: var(--radius);
  padding: 30px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.rate-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.1), transparent);
  transition: 0.5s;
}

.rate-card:hover::before {
  left: 100%;
}

.rate-card:hover {
  border-color: var(--gold);
  box-shadow: var(--shadow-hover);
}

.rate-card h4 {
  color: var(--gray);
  font-weight: 600;
  margin-bottom: 15px;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.9rem;
}

.rate-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--black);
  margin-bottom: 10px;
}

.rate-value .currency {
  font-size: 1.5rem;
  color: var(--gold);
}

.rate-indicator {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-weight: 600;
  font-size: 0.95rem;
}

.rate-indicator.up {
  color: #22c55e;
}

.rate-indicator.down {
  color: #ef4444;
}

.rate-updated {
  margin-top: 15px;
  font-size: 0.85rem;
  color: var(--gray);
}

/* Live Ticker */
.live-ticker {
  background: var(--black);
  padding: 15px 0;
  margin-bottom: 40px;
  overflow: hidden;
}

.ticker-content {
  display: flex;
  animation: marquee 20s linear infinite;
  white-space: nowrap;
}

.ticker-item {
  padding: 0 40px;
  color: var(--gold);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
}

.ticker-item .label {
  color: rgba(255, 255, 255, 0.7);
  font-weight: 400;
}

/* ===== Testimonials ===== */
.testimonials-slider {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  overflow: hidden;
}

.testimonial-slide {
  display: none;
  padding: 40px;
  background: var(--gray-light);
  border-radius: var(--radius);
  text-align: center;
}

.testimonial-slide.active {
  display: block;
}

.testimonial-text {
  font-size: 1.2rem;
  font-style: italic;
  color: var(--gray-dark);
  margin-bottom: 25px;
  line-height: 1.8;
}

.testimonial-text::before {
  content: '"';
  font-size: 4rem;
  color: var(--gold);
  line-height: 0;
  display: block;
  margin-bottom: 10px;
}

.testimonial-author {
  font-weight: 700;
  color: var(--black);
}

.testimonial-author span {
  display: block;
  font-weight: 400;
  color: var(--gold);
  font-size: 0.9rem;
  margin-top: 5px;
}

/* ===== CTA Strip ===== */
.cta-strip {
  background: linear-gradient(135deg, var(--black), var(--gray-dark));
  padding: 60px 20px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-strip::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--gold-dark), var(--gold), var(--gold-light), var(--gold), var(--gold-dark));
}

.cta-strip h2 {
  color: var(--white);
  margin-bottom: 20px;
}

.cta-strip p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 30px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== Hero Page Header ===== */
.page-hero {
  height: 40vh;
  min-height: 300px;
  background-size: cover;
  background-position: center;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.5));
}

.page-hero-content {
  position: relative;
  z-index: 1;
  color: var(--white);
}

.page-hero h1 {
  color: var(--white);
  margin-bottom: 15px;
}

.page-hero p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.1rem;
}

/* ===== Image Cards ===== */
.image-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.image-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
}

.image-card img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: var(--transition);
}

.image-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.3), transparent);
  transition: 0.5s;
}

.image-card:hover img {
  transform: scale(1.1);
}

.image-card:hover::after {
  left: 100%;
}

/* ===== FAQ Accordion ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid #eee;
  border-radius: var(--radius);
  margin-bottom: 15px;
  overflow: hidden;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--gold);
}

.faq-question {
  width: 100%;
  padding: 20px 25px;
  background: var(--white);
  text-align: left;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--gray-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 15px;
  transition: var(--transition);
}

.faq-question:hover {
  background: var(--gray-light);
}

.faq-question .icon {
  font-size: 1.5rem;
  color: var(--gold);
  transition: var(--transition);
  flex-shrink: 0;
}

.faq-item.active .faq-question .icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-inner {
  padding: 0 25px 20px;
  color: var(--gray);
  line-height: 1.7;
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

/* ===== Purity Table ===== */
.purity-table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.purity-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 500px;
}

.purity-table th,
.purity-table td {
  padding: 18px 20px;
  text-align: left;
  border-bottom: 1px solid #eee;
}

.purity-table th {
  background: linear-gradient(135deg, var(--black), var(--gray-dark));
  color: var(--gold);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.85rem;
}

.purity-table tr:hover td {
  background: var(--gray-light);
}

.purity-table td:first-child {
  font-weight: 600;
  color: var(--black);
}

/* ===== Contact Form ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}

@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

.contact-form {
  background: var(--gray-light);
  padding: 40px;
  border-radius: var(--radius);
}

.form-group {
  margin-bottom: 25px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--gray-dark);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 15px 20px;
  border: 2px solid #ddd;
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition);
  background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.form-group .error-msg {
  color: #ef4444;
  font-size: 0.85rem;
  margin-top: 5px;
  display: none;
}

.form-group.error input,
.form-group.error textarea {
  border-color: #ef4444;
}

.form-group.error .error-msg {
  display: block;
}

.form-success {
  display: none;
  background: #22c55e;
  color: var(--white);
  padding: 20px;
  border-radius: var(--radius);
  text-align: center;
  margin-top: 20px;
}

.form-success.show {
  display: block;
}

.contact-info h3 {
  margin-bottom: 25px;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  margin-bottom: 25px;
}

.contact-info-item .icon {
  width: 50px;
  height: 50px;
  background: var(--gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-info-item h4 {
  margin-bottom: 5px;
}

.contact-info-item a {
  color: var(--gold);
}

.contact-info-item a:hover {
  text-decoration: underline;
}

.map-container {
  margin-top: 30px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.map-container iframe {
  width: 100%;
  height: 300px;
  border: none;
}

/* ===== Footer ===== */
.footer {
  background: var(--black);
  color: rgba(255, 255, 255, 0.8);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer h4 {
  color: var(--gold);
  margin-bottom: 20px;
  font-size: 1.1rem;
}

.footer p {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.8;
}

.footer-links a {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  padding: 8px 0;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--gold);
  padding-left: 10px;
}

.footer-social {
  display: flex;
  gap: 15px;
  margin-top: 20px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  font-size: 1rem;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--gold);
  color: var(--black);
}

.newsletter-form {
  display: flex;
  gap: 10px;
  margin-top: 15px;
}

.newsletter-form input {
  flex: 1;
  padding: 12px 15px;
  border: none;
  border-radius: var(--radius);
  font-size: 0.95rem;
}

.newsletter-form button {
  padding: 12px 20px;
  background: var(--gold);
  color: var(--black);
  border-radius: var(--radius);
  font-weight: 600;
  transition: var(--transition);
}

.newsletter-form button:hover {
  background: var(--gold-light);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  text-align: center;
  font-size: 0.9rem;
}

/* ===== WhatsApp Floating Button ===== */
.whatsapp-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.8rem;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: var(--transition);
  animation: whatsappPulse 2s infinite;
}

.whatsapp-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 30px rgba(37, 211, 102, 0.6);
}

@keyframes whatsappPulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
  50% { box-shadow: 0 4px 30px rgba(37, 211, 102, 0.7), 0 0 0 10px rgba(37, 211, 102, 0.1); }
}

/* ===== Back to Top Button ===== */
.back-to-top {
  position: fixed;
  bottom: 100px;
  right: 30px;
  width: 45px;
  height: 45px;
  background: var(--gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.2rem;
  box-shadow: var(--shadow);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--gold-dark);
  transform: translateY(-3px);
}

/* ===== Scroll Animations ===== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Content Sections ===== */
.content-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

@media (max-width: 768px) {
  .content-section {
    grid-template-columns: 1fr;
  }
}

.content-section.reverse {
  direction: rtl;
}

.content-section.reverse > * {
  direction: ltr;
}

.content-text h2 {
  margin-bottom: 20px;
}

.content-text p {
  margin-bottom: 15px;
}

.content-image img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* ===== Additional Mobile Fixes ===== */
@media (max-width: 480px) {
  .section {
    padding: 50px 0;
  }

  .hero-slider {
    height: 60vh;
    min-height: 400px;
  }

  .slider-arrow {
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
  }

  .slide-content h1 {
    font-size: 1.8rem;
  }

  .slide-content p {
    font-size: 1rem;
  }

  .btn {
    padding: 12px 24px;
    font-size: 0.9rem;
  }

  .rate-value {
    font-size: 2rem;
  }

  .timeline::before {
    display: none;
  }

  .timeline {
    flex-direction: column;
  }

  .contact-form {
    padding: 25px;
  }

  .whatsapp-btn {
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
    bottom: 20px;
    right: 20px;
  }

  .back-to-top {
    width: 40px;
    height: 40px;
    bottom: 80px;
    right: 20px;
  }
}