/* ==========================================================================
   SEPET VINC - CORE CSS VARIABLES & RESET
   ========================================================================== */
   :root {
    /* Color Palette */
    --clr-primary: #1a1a24;     /* Dark Slate / Industrial */
    --clr-primary-light: #2c2c3e;
    --clr-accent: #f39c12;      /* Crane Yellow */
    --clr-accent-hover: #d68910;
    
    --clr-text-main: #333333;
    --clr-text-light: #777777;
    --clr-text-white: #ffffff;
    
    --clr-bg-main: #ffffff;
    --clr-bg-light: #f4f5f7;
    --clr-bg-dark: #111111;
    
    --clr-border: #e2e2e2;

    /* Typography */
    --ff-main: 'Inter', sans-serif;
    --fw-light: 300;
    --fw-regular: 400;
    --fw-semibold: 600;
    --fw-bold: 700;
    --fw-extrabold: 800;

    /* Spacing & Layout */
    --container-width: 1200px;
    --transition: all 0.3s ease;
    --radius: 4px;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--ff-main);
    color: var(--clr-text-main);
    background-color: var(--clr-bg-main);
    line-height: 1.6;
    overflow-x: hidden;
}

ul { list-style: none; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }

/* ==========================================================================
   GLOBAL UTILITIES
   ========================================================================== */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding { padding: 100px 0; }
.bg-light { background-color: var(--clr-bg-light); }
.text-center { text-align: center; }
.text-accent { color: var(--clr-accent); }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }
.mb-4 { margin-bottom: 1.5rem; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 28px;
    font-size: 15px;
    font-weight: var(--fw-semibold);
    border-radius: var(--radius);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-large { padding: 16px 36px; font-size: 16px; }

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

.btn-secondary {
    background-color: var(--clr-primary);
    color: var(--clr-text-white);
}
.btn-secondary:hover {
    background-color: var(--clr-primary-light);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--clr-text-white);
    color: var(--clr-text-white);
}
.btn-outline:hover {
    background-color: var(--clr-text-white);
    color: var(--clr-primary);
}
.bg-light .btn-outline { border-color: var(--clr-primary); color: var(--clr-primary); }

.btn-dark {
    background-color: var(--clr-primary);
    color: var(--clr-text-white);
}

/* Section Titles */
.section-title { margin-bottom: 50px; }
.section-title .subtitle {
    display: block;
    color: var(--clr-accent);
    font-weight: var(--fw-bold);
    letter-spacing: 2px;
    margin-bottom: 10px;
    font-size: 14px;
}
.section-title h2 {
    font-size: 36px;
    font-weight: var(--fw-extrabold);
    line-height: 1.2;
    color: var(--clr-primary);
}

/* ==========================================================================
   HEADER & NAVBAR
   ========================================================================== */
.main-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background-color: var(--clr-bg-main);
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
    transition: var(--transition);
}

/* Top Bar */
.top-bar {
    background-color: var(--clr-primary);
    color: #cfcfcf;
    font-size: 13px;
    padding: 10px 0;
}
.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.top-bar-left span { margin-right: 20px; }
.top-bar-left i { color: var(--clr-accent); margin-right: 5px; }
.top-bar-right a {
    color: #cfcfcf;
    margin-left: 15px;
}
.top-bar-right a:hover { color: var(--clr-accent); }

/* Navbar */
.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}
.logo img {
    height: 80px;
    width: auto;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}
.logo-text {
    font-size: 24px;
    font-weight: var(--fw-extrabold);
    color: var(--clr-primary);
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    gap: 20px;
    align-items: center;
}
.nav-links a {
    font-weight: var(--fw-semibold);
    color: var(--clr-primary);
    position: relative;
    padding: 5px 0;
    white-space: nowrap;
}
.nav-links a:hover, .nav-links a.active { color: var(--clr-accent); }
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 0; height: 2px;
    background-color: var(--clr-accent);
    transition: var(--transition);
}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

.nav-actions { display: flex; align-items: center; gap: 15px; }
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--clr-primary);
    cursor: pointer;
}

/* Nav Call Button Animation & Styling */
.nav-actions .btn-primary {
    background: linear-gradient(135deg, var(--clr-accent), #d35400);
    color: #fff;
    border-radius: 50px;
    padding: 12px 24px;
    box-shadow: 0 4px 15px rgba(243, 156, 18, 0.4);
    transition: all 0.3s ease;
    border: none;
}
.nav-actions .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(243, 156, 18, 0.6);
    color: #fff;
}
.nav-actions .btn-primary i {
    animation: ring 2s infinite ease-in-out;
    display: inline-block;
    transform-origin: center top;
}

@keyframes ring {
  0% { transform: rotate(0); }
  5% { transform: rotate(15deg); }
  10% { transform: rotate(-10deg); }
  15% { transform: rotate(15deg); }
  20% { transform: rotate(-10deg); }
  25% { transform: rotate(15deg); }
  30% { transform: rotate(-10deg); }
  35% { transform: rotate(15deg); }
  40% { transform: rotate(-10deg); }
  45% { transform: rotate(0); }
  100% { transform: rotate(0); }
}

/* ==========================================================================
   HERO SLIDER SECTION
   ========================================================================== */
.hero-slider-section {
    margin-top: 100px; /* offset for fixed header */
    position: relative;
    color: var(--clr-text-white);
}

.hero-slider {
    position: relative;
    height: calc(100vh - 100px);
    min-height: 600px;
    overflow: hidden;
}

.slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 0.8s ease-in-out;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    z-index: 1;
}

.slide.active {
    opacity: 1;
    z-index: 2;
}

.hero-container { 
    position: relative; 
    z-index: 2; 
    display: flex; 
    flex-direction: column; 
    justify-content: center; 
    height: 100%; 
}

.hero-content { 
    max-width: 700px; 
    transform: translateY(30px);
    opacity: 0;
    transition: all 0.8s ease-in-out 0.3s;
}

.slide.active .hero-content {
    transform: translateY(0);
    opacity: 1;
}

.hero-subtitle {
    color: var(--clr-accent);
    letter-spacing: 3px;
    font-size: 14px;
    margin-bottom: 20px;
    display: inline-block;
    padding-left: 50px;
    position: relative;
}
.hero-subtitle::before {
    content: '';
    position: absolute;
    left: 0; top: 50%;
    width: 40px; height: 2px;
    background-color: var(--clr-accent);
}

.hero-title {
    font-size: 64px;
    font-weight: var(--fw-extrabold);
    line-height: 1.1;
    margin-bottom: 25px;
}

.hero-desc {
    font-size: 18px;
    font-weight: var(--fw-light);
    margin-bottom: 40px;
    opacity: 0.9;
}

.hero-buttons { display: flex; gap: 20px; }

/* Slider Controls */
.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border: 2px solid rgba(255, 255, 255, 0.3);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    z-index: 10;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-btn:hover {
    background: var(--clr-accent);
    border-color: var(--clr-accent);
    color: var(--clr-primary);
}

.prev-btn { left: 30px; }
.next-btn { right: 30px; }

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

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: var(--clr-accent);
    transform: scale(1.2);
}

/* Hero Stats Box */
.hero-stats-container {
    position: relative;
    height: 0; /* so it doesn't take up space */
}
.hero-stats {
    position: absolute;
    bottom: 50px; /* offset from the bottom of the slider */
    right: 20px;
    background-color: var(--clr-bg-main);
    padding: 30px 50px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    display: flex;
    gap: 40px;
    z-index: 20;
}
.stat-item {
    text-align: center;
    color: var(--clr-primary);
}
.stat-number {
    display: block;
    font-size: 36px;
    font-weight: var(--fw-extrabold);
    color: var(--clr-accent);
}
.stat-label {
    font-size: 14px;
    font-weight: var(--fw-semibold);
}

/* ==========================================================================
   ABOUT SECTION
   ========================================================================== */
.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image { position: relative; }
.image-wrapper img {
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    object-fit: cover;
    height: 500px;
    width: 100%;
}

.experience-badge {
    position: absolute;
    bottom: -20px;
    left: -20px;
    background-color: var(--clr-accent);
    color: var(--clr-primary);
    width: 150px;
    height: 150px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    border: 10px solid var(--clr-bg-main);
    box-shadow: var(--shadow);
}
.experience-badge .years { font-size: 48px; font-weight: var(--fw-extrabold); line-height: 1; }
.experience-badge .text { font-size: 14px; font-weight: var(--fw-bold); text-align: center; }

.features-list { margin-top: 30px; display: flex; flex-direction: column; gap: 20px; }
.feature-item { display: flex; gap: 20px; }
.feature-item .icon {
    width: 60px; height: 60px;
    background-color: var(--clr-bg-light);
    color: var(--clr-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 24px;
    flex-shrink: 0;
}
.feature-item h4 { font-size: 18px; color: var(--clr-primary); margin-bottom: 5px; }
.feature-item p { color: var(--clr-text-light); font-size: 15px; }

/* ==========================================================================
   SERVICES SECTION
   ========================================================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.service-card {
    background: var(--clr-bg-main);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}
.service-card:hover { transform: translateY(-10px); }

.service-img { position: relative; height: 240px; overflow: hidden; }
.service-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.service-card:hover .service-img img { transform: scale(1.1); }

.service-content { padding: 40px 30px 30px; }
.service-content h3 { font-size: 22px; color: var(--clr-primary); margin-bottom: 15px; }
.service-content p { color: var(--clr-text-light); margin-bottom: 20px; }
.read-more {
    font-weight: var(--fw-bold);
    color: var(--clr-primary);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.read-more:hover { color: var(--clr-accent); }

/* ==========================================================================
   FLEET GALLERY
   ========================================================================== */
.fleet-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
.gallery-item {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    height: 300px;
    display: block;
}
.gallery-item img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.gallery-overlay {
    position: absolute;
    inset: 0;
    background: rgba(26, 26, 36, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
    color: var(--clr-accent);
    font-size: 40px;
}
.gallery-item:hover img { transform: scale(1.1); }
.gallery-item:hover .gallery-overlay { opacity: 1; }

/* ==========================================================================
   TESTIMONIALS SECTION
   ========================================================================== */
.testimonials {
    background-color: var(--clr-bg-main);
}
.testimonial-slider-container {
    position: relative;
    max-width: 100%;
}
.testimonial-slider {
    position: relative;
    /* Height will adjust automatically because we use display: none/grid instead of absolute positioning */
}
.testimonial-slide {
    display: none;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    animation: fadeIn 0.5s ease;
}
.testimonial-slide.active {
    display: grid;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.testimonial-card {
    background: var(--clr-bg-light);
    padding: 30px;
    border-radius: var(--radius);
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    border-top: 4px solid var(--clr-accent);
    display: flex;
    flex-direction: column;
}
.testimonial-card p {
    font-size: 15px;
    font-style: italic;
    color: var(--clr-text-light);
    margin: 15px 0;
    flex-grow: 1;
}
.testimonial-card h4 {
    font-size: 14px;
    color: var(--clr-primary);
    font-weight: var(--fw-bold);
    margin-top: auto;
}
.testimonial-card .stars {
    color: #f1c40f;
    font-size: 14px;
}

/* Dots for Testimonials */
.testimonial-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 30px;
}
.testimonial-dots .dot {
    width: 12px;
    height: 12px;
    background-color: #ddd;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
}
.testimonial-dots .dot.active {
    background-color: var(--clr-accent);
    transform: scale(1.2);
}

/* Responsive updates for testimonials */
@media (max-width: 1024px) {
    .testimonial-slide {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 768px) {
    .testimonial-slide {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   CTA SECTION
   ========================================================================== */
.cta {
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    padding: 80px 0;
    color: var(--clr-primary);
}
.cta-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.cta-content h2 { font-size: 36px; font-weight: var(--fw-extrabold); margin-bottom: 10px; }
.cta-content p { font-size: 18px; font-weight: var(--fw-semibold); }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.main-footer {
    background-color: var(--clr-primary);
    color: var(--clr-text-light);
}

.footer-top { padding: 80px 0 50px; }
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    color: var(--clr-text-white);
    font-size: 24px;
    font-weight: var(--fw-extrabold);
}
.footer-logo img { height: 60px; background-color: #fff; border-radius: 8px; padding: 2px; }

.footer-widget p { margin-bottom: 25px; }

.social-links { display: flex; gap: 10px; }
.social-links a {
    width: 40px; height: 40px;
    background-color: var(--clr-primary-light);
    color: var(--clr-text-white);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
}
.social-links a:hover { background-color: var(--clr-accent); color: var(--clr-primary); }

.footer-widget h3 {
    color: var(--clr-text-white);
    font-size: 20px;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 15px;
}
.footer-widget h3::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 40px; height: 2px;
    background-color: var(--clr-accent);
}

.footer-links li { margin-bottom: 15px; }
.footer-links a { display: flex; align-items: center; gap: 10px; }
.footer-links a:hover { color: var(--clr-accent); padding-left: 5px; }
.footer-links i { color: var(--clr-accent); font-size: 12px; }

.footer-contact li {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}
.footer-contact i {
    color: var(--clr-accent);
    font-size: 18px;
    margin-top: 5px;
}

.footer-bottom {
    background-color: #15151d;
    padding: 25px 0;
    font-size: 14px;
}
.bottom-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.bottom-links { display: flex; gap: 20px; }
.bottom-links a:hover { color: var(--clr-accent); }

/* ==========================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */
@media (max-width: 1024px) {
    .hero-title { font-size: 48px; }
    .hero-stats { position: relative; bottom: 0; right: 0; margin-top: 40px; padding: 20px; width: 100%; justify-content: space-between; }
    .about-container { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .top-bar { display: none; }
    
    .nav-links, .nav-actions .btn { display: none; }
    .mobile-menu-toggle { display: block; }
    
    .hero { height: auto; padding: 60px 0; margin-top: 70px; }
    .hero-buttons { flex-direction: column; }
    .hero-stats { flex-direction: column; gap: 20px; }
    
    .services-grid, .fleet-gallery { grid-template-columns: 1fr; }
    
    .cta-container { flex-direction: column; text-align: center; gap: 30px; }
    .footer-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   CUSTOM BUTTONS & THEME TOGGLE
   ========================================================================== */
.whatsapp-btn {
    background-color: transparent;
    color: #25D366;
    border-color: #25D366;
    transition: var(--transition);
}
.whatsapp-btn:hover {
    background-color: #25D366;
    color: #ffffff;
}

.theme-toggle-btn {
    padding: 8px 12px;
    border-radius: 50%;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-color: var(--clr-border);
    color: var(--clr-primary);
}
.theme-toggle-btn:hover {
    background-color: var(--clr-primary);
    color: var(--clr-text-white);
}

/* ==========================================================================
   DARK MODE VARIABLES
   ========================================================================== */
[data-theme="dark"] {
    --clr-bg-main: #121212;
    --clr-bg-light: #1e1e1e;
    --clr-text-main: #e0e0e0;
    --clr-text-light: #aaaaaa;
    --clr-primary: #f5f5f5;
    --clr-primary-light: #333333;
    --clr-border: #333333;
}

/* Specific Dark Mode Adjustments */
[data-theme="dark"] .main-header {
    background-color: #1a1a24;
    border-bottom: 1px solid #333;
}
[data-theme="dark"] .logo-text,
[data-theme="dark"] .nav-links a {
    color: #ffffff;
}
[data-theme="dark"] .theme-toggle-btn {
    color: #ffffff;
    border-color: #555;
}
[data-theme="dark"] .theme-toggle-btn:hover {
    background-color: #ffffff;
    color: #1a1a24;
}
[data-theme="dark"] .mobile-menu-toggle {
    color: #ffffff;
}
[data-theme="dark"] .service-card,
[data-theme="dark"] .hero-stats {
    background-color: #1e1e1e;
}
[data-theme="dark"] .section-title h2,
[data-theme="dark"] .service-content h3,
[data-theme="dark"] .feature-item h4 {
    color: #ffffff;
}
[data-theme="dark"] .bg-light {
    background-color: #1a1a24;
}
[data-theme="dark"] .contact-section form input,
[data-theme="dark"] .contact-section form select,
[data-theme="dark"] .contact-section form textarea,
[data-theme="dark"] .contact-section > .container > div:last-child {
    background-color: #1e1e1e;
    color: #fff;
    border-color: #333;
}

/* Dropdown Menu Styles */
.nav-links li.dropdown {
    position: relative;
}
.nav-links li.dropdown .dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--card-bg, #fff);
    min-width: 200px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border-radius: 8px;
    padding: 10px 0;
    z-index: 1000;
    list-style: none;
}
.nav-links li.dropdown:hover .dropdown-menu {
    display: block;
}
.nav-links li.dropdown .dropdown-menu li {
    display: block;
    margin: 0;
}
.nav-links li.dropdown .dropdown-menu li a {
    padding: 10px 20px;
    display: block;
    color: var(--text-color, #333);
    font-size: 15px;
    font-weight: 500;
}
.nav-links li.dropdown .dropdown-menu li a:hover {
    background-color: rgba(0,0,0,0.05);
    color: var(--primary-color, #f39c12);
}

/* ==========================================================================
   FLOATING WIDGETS & MOBILE STICKY BAR
   ========================================================================== */

/* Floating WhatsApp Button */
.floating-whatsapp {
    position: fixed;
    bottom: 25px;
    right: 25px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 9999;
    text-decoration: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: whatsappPulse 2s infinite;
}
.floating-whatsapp:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(37, 211, 102, 0.6);
    color: #ffffff;
}
.whatsapp-tooltip {
    position: absolute;
    right: 70px;
    background: #1a1a24;
    color: #ffffff;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease;
    pointer-events: none;
}
.floating-whatsapp:hover .whatsapp-tooltip {
    opacity: 1;
    visibility: visible;
}

@keyframes whatsappPulse {
    0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7); }
    70% { box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); }
    100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* Back to Top Button */
.back-to-top-btn {
    position: fixed;
    bottom: 25px;
    right: 95px;
    width: 48px;
    height: 48px;
    background-color: #1a1a24;
    color: #f39c12;
    border: 2px solid #f39c12;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    z-index: 9998;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, transform 0.3s ease, background-color 0.3s ease;
}
.back-to-top-btn.visible {
    opacity: 1;
    visibility: visible;
}
.back-to-top-btn:hover {
    background-color: #f39c12;
    color: #1a1a24;
    transform: translateY(-4px);
}

/* Mobile Sticky Bar */
.mobile-sticky-bar {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60px;
    background-color: #1a1a24;
    z-index: 10000;
    box-shadow: 0 -2px 15px rgba(0,0,0,0.2);
}
.mobile-sticky-bar .sticky-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: #ffffff;
    font-weight: 700;
    font-size: 15px;
    text-decoration: none;
}
.mobile-sticky-bar .call-btn {
    background-color: #f39c12;
    color: #1a1a24;
}
.mobile-sticky-bar .whatsapp-btn {
    background-color: #25d366;
    color: #ffffff;
}

@media (max-width: 768px) {
    .mobile-sticky-bar {
        display: flex;
    }
    .floating-whatsapp {
        bottom: 75px;
        right: 15px;
        width: 50px;
        height: 50px;
        font-size: 26px;
    }
    .back-to-top-btn {
        bottom: 75px;
        right: 75px;
        width: 44px;
        height: 44px;
    }
}