/* ==========================================================================
   DESIGN SYSTEM & VARIABLES (LIGHT MODE / Shopify Inspired)
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
    /* Colors */
    --primary: #0066FF;       /* Vibrant Clean Blue */
    --primary-hover: #0052CC;
    --secondary: #0D9488;     /* Modern Teal (Water/Hygiene) */
    --accent: #F97316;        /* Heat/Gas Orange */
    --accent-light: #FFEDE0;
    
    --bg-site: #FAFAFA;
    --bg-card: #FFFFFF;
    --bg-accent: #F3F4F6;
    
    --text-primary: #111827;  /* Soft Dark Grey (avoid pure black) */
    --text-secondary: #4B5563;/* Neutral Slate */
    --text-light: #9CA3AF;     /* Soft Muted Grey */
    
    --border-color: #E5E7EB;
    --border-focus: #3B82F6;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.03);
    --shadow-premium: 0 20px 40px rgba(0, 102, 255, 0.05);
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    
    /* Grid/Layout */
    --container-width: 1200px;
    --border-radius: 16px;
    --border-radius-sm: 8px;
}

/* ==========================================================================
   RESETS & BASE STYLES
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.25;
}

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

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

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

/* Common Layout Container */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section-padding {
    padding: 80px 0;
}

/* ==========================================================================
   TOP BAR & NAVIGATION / HEADER
   ========================================================================== */
.top-bar {
    background-color: #F9FAFB;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.8rem;
    color: var(--text-secondary);
    padding: 8px 0;
    transition: margin-top var(--transition-normal), opacity var(--transition-normal);
}

.top-bar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar-info {
    display: flex;
    gap: 24px;
}

.top-bar-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
}

.pulse-indicator {
    width: 8px;
    height: 8px;
    background-color: #10B981;
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4);
    animation: pulseDot 2s infinite;
}

@keyframes pulseDot {
    0% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    }
    70% {
        transform: scale(1);
        box-shadow: 0 0 0 6px rgba(16, 185, 129, 0);
    }
    100% {
        transform: scale(0.95);
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
    }
}

.desktop-only {
    display: inline;
}

.header-main {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition-normal);
}

.header-main.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-sm);
    padding: 5px 0;
}

.header-main.scrolled .top-bar {
    margin-top: -38px;
    opacity: 0;
    pointer-events: none;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
    transition: var(--transition-normal);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--primary);
}

.logo span {
    color: var(--text-primary);
}

.nav-menu {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: var(--transition-normal);
}

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

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

.nav-link.active {
    color: var(--primary);
    font-weight: 600;
}

.nav-cta {
    background-color: var(--primary);
    color: #FFF;
    padding: 10px 20px;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition-fast);
    box-shadow: 0 4px 10px rgba(0, 102, 255, 0.15);
}

.nav-cta:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 14px rgba(0, 102, 255, 0.2);
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-normal);
}

/* ==========================================================================
   HERO SLIDER
   ========================================================================== */
.hero-slider-container {
    position: relative;
    width: 100%;
    height: 85vh;
    min-height: 550px;
    overflow: hidden;
    margin-top: 106px;
    background-color: #FFF;
}

.slider-track {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 1s ease-in-out, visibility 1s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slide.active {
    opacity: 1;
    visibility: visible;
    z-index: 10;
}

.slide-image-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.slide-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transform: scale(1.05);
    transition: transform 6s ease-out;
}

.slide.active .slide-image {
    transform: scale(1);
}

.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.5) 50%, rgba(0,0,0,0.65) 100%);
    z-index: 2;
}

.slide-content-container {
    position: relative;
    z-index: 5;
    text-align: center;
    max-width: 800px;
    padding: 0 20px;
}

.slide-badge {
    display: inline-block;
    padding: 6px 16px;
    background-color: var(--accent-light);
    color: var(--accent);
    border-radius: 30px;
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(20px);
    transition: transform 0.8s ease-out, opacity 0.8s ease-out;
}

.slide-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    color: #FFFFFF;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    opacity: 0;
    transform: translateY(30px);
    transition: transform 0.8s ease-out 0.2s, opacity 0.8s ease-out 0.2s;
}

.slide-description {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 0 1px 3px rgba(0,0,0,0.3);
    margin-bottom: 35px;
    opacity: 0;
    transform: translateY(30px);
    transition: transform 0.8s ease-out 0.4s, opacity 0.8s ease-out 0.4s;
}

.slide-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    opacity: 0;
    transform: translateY(30px);
    transition: transform 0.8s ease-out 0.6s, opacity 0.8s ease-out 0.6s;
}

/* Active transitions */
.slide.active .slide-badge,
.slide.active .slide-title,
.slide.active .slide-description,
.slide.active .slide-actions {
    opacity: 1;
    transform: translateY(0);
}

.btn-primary {
    background-color: var(--primary);
    color: #FFF;
    padding: 14px 28px;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(0, 102, 255, 0.15);
    transition: var(--transition-fast);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 102, 255, 0.25);
}

.btn-secondary {
    background-color: #FFF;
    color: var(--text-primary);
    padding: 14px 28px;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-secondary:hover {
    background-color: var(--bg-accent);
    transform: translateY(-2px);
}

/* Slider Controls */
.slider-arrows {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 24px;
    box-sizing: border-box;
    transform: translateY(-50%);
    z-index: 15;
}

.slider-arrow {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
}

.slider-arrow:hover {
    background: #FFF;
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
    color: var(--primary);
}

.slider-dots {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 15;
}

.slider-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: rgba(0, 0, 0, 0.15);
    border: none;
    cursor: pointer;
    transition: var(--transition-fast);
}

.slider-dot.active {
    background-color: var(--primary);
    width: 28px;
    border-radius: 5px;
}

/* ==========================================================================
   BLOCKS & GRID CARDS
   ========================================================================== */
.section-title-wrapper {
    text-align: center;
    margin-bottom: 50px;
}

.section-subtitle {
    color: var(--primary);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--text-primary);
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--primary);
    margin: 16px auto 0;
    border-radius: 2px;
}

/* Feature Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

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

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

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

.feature-icon-wrapper {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background-color: rgba(0, 102, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 1.75rem;
    color: var(--primary);
    transition: var(--transition-normal);
}

.feature-card:hover .feature-icon-wrapper {
    background-color: var(--primary);
    color: #FFF;
    transform: rotateY(360deg);
}

.feature-title {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

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

/* ==========================================================================
   SERVICES PAGE / CATEGORIES
   ========================================================================== */
.services-intro {
    position: relative;
    margin-top: 106px;
    padding: 120px 0 80px;
    text-align: center;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: #FFFFFF;
    overflow: hidden;
}

.services-intro::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.6) 100%);
    z-index: 1;
}

.services-intro .container {
    position: relative;
    z-index: 2;
}

.services-intro h1 {
    font-size: 3rem;
    margin-bottom: 16px;
    color: #FFFFFF;
    text-shadow: 0 2px 4px rgba(0,0,0,0.4);
}

.services-intro p {
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.15rem;
    text-shadow: 0 1px 3px rgba(0,0,0,0.4);
}

.services-intro .section-subtitle {
    color: #60A5FA;
    text-shadow: 0 1px 2px rgba(0,0,0,0.4);
}

.service-category-block {
    margin-bottom: 60px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
}

.service-category-block:hover {
    box-shadow: var(--shadow-md);
}

.category-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 20px;
    margin-bottom: 30px;
}

.category-title {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 1.75rem;
    color: var(--text-primary);
}

.category-icon {
    font-size: 2rem;
    color: var(--primary);
}

.category-badge {
    background-color: var(--accent-light);
    color: var(--accent);
    padding: 6px 14px;
    font-weight: 700;
    border-radius: 20px;
    font-size: 0.75rem;
    text-transform: uppercase;
}

.category-badge.emergency {
    background-color: #FEE2E2;
    color: #EF4444;
}

.category-badge.sec {
    background-color: #ECFDF5;
    color: #10B981;
}

.services-list-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.service-item-card {
    background-color: var(--bg-site);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition-normal);
}

.service-item-card:hover {
    background-color: #FFF;
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.service-item-header {
    margin-bottom: 16px;
}

.service-item-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.service-item-title i {
    color: var(--primary);
    margin-top: 4px;
    font-size: 0.95rem;
}

.service-item-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.service-item-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
    border-top: 1px dashed var(--border-color);
    padding-top: 16px;
}

.service-price-tag {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 4px;
}

.service-price-tag span {
    color: var(--secondary);
    font-weight: 700;
    font-size: 1.05rem;
}

.service-cta-btn {
    background: none;
    border: 1px solid var(--primary);
    color: var(--primary);
    padding: 8px 16px;
    border-radius: var(--border-radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.service-cta-btn:hover {
    background-color: var(--primary);
    color: #FFF;
}

/* ==========================================================================
   ABOUT US / NOSOTROS
   ========================================================================== */
.about-section {
    display: flex;
    align-items: center;
    gap: 60px;
}

.about-content {
    flex: 1;
}

.about-image-wrapper {
    flex: 1;
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.metric-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 24px;
    border-radius: var(--border-radius-sm);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.metric-number {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 4px;
}

.metric-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 600;
}

/* Testimonial Section */
.testimonials-section {
    background-color: #FFF;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background-color: var(--bg-site);
    padding: 30px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.testimonial-stars {
    color: #FBBF24;
    margin-bottom: 16px;
    font-size: 0.95rem;
}

.testimonial-text {
    font-style: italic;
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 24px;
}

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

.author-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--text-secondary);
}

.author-info h4 {
    font-size: 0.95rem;
    font-weight: 700;
}

.author-info p {
    font-size: 0.8rem;
    color: var(--text-light);
}

/* ==========================================================================
   CONTACT / CONTACTO
   ========================================================================== */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 50px;
}

.contact-info-block {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-card-info {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
}

.info-item:last-child {
    margin-bottom: 0;
}

.info-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: rgba(0, 102, 255, 0.05);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
}

.info-details h4 {
    font-size: 1.05rem;
    margin-bottom: 4px;
}

.info-details p, .info-details a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.contact-form-wrapper {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background-color: var(--bg-site);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    transition: var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
    background-color: #FFF;
}

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

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer-main {
    background-color: #FFF;
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand p {
    color: var(--text-secondary);
    margin-top: 16px;
    font-size: 0.95rem;
}

.footer-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 24px;
    position: relative;
    padding-bottom: 8px;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--primary);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

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

.footer-links a:hover {
    color: var(--primary);
    padding-left: 4px;
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-light);
    font-size: 0.85rem;
}

/* ==========================================================================
   WHATSAPP CHATBOT (INTELLIGENT ASSISTANT)
   ========================================================================== */
.wa-widget-container {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 10000;
}

.wa-launcher {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: #25D366;
    color: #FFF;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.85rem;
    cursor: pointer;
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.35);
    border: none;
    transition: var(--transition-normal);
}

.wa-launcher:hover {
    transform: scale(1.1) rotate(10deg);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.45);
}

.wa-chat-window {
    position: absolute;
    bottom: 75px;
    right: 0;
    width: 360px;
    height: 480px;
    background-color: #F0F2F5; /* Standard WhatsApp Light Gray bg */
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    border: 1px solid rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px) scale(0.95);
    visibility: hidden;
    transition: var(--transition-slow);
}

.wa-chat-window.open {
    opacity: 1;
    transform: translateY(0) scale(1);
    visibility: visible;
}

/* Header */
.wa-chat-header {
    background-color: #075E54; /* Classic WA Green Header */
    color: #FFF;
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.wa-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background-color: #FFF;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #075E54;
    font-size: 1.25rem;
}

.wa-info h4 {
    color: #FFF;
    font-size: 0.95rem;
    font-weight: 600;
}

.wa-info p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    gap: 4px;
}

.wa-info p::before {
    content: '';
    display: block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: #25D366;
}

.wa-close {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.25rem;
    cursor: pointer;
}

.wa-close:hover {
    color: #FFF;
}

/* Body / Chat Area */
.wa-chat-body {
    flex: 1;
    padding: 16px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
    background-image: url('https://user-images.githubusercontent.com/15075759/28719144-86dc0f70-73b1-11e7-911d-60d70fcded21.png'); /* Official WA Background Pattern */
    background-repeat: repeat;
}

.wa-msg {
    max-width: 80%;
    padding: 10px 14px;
    border-radius: 12px;
    font-size: 0.88rem;
    position: relative;
    animation: msgIn 0.3s cubic-bezier(0.18, 0.89, 0.32, 1.28) forwards;
}

.wa-msg.bot {
    background-color: #FFFFFF;
    color: var(--text-primary);
    align-self: flex-start;
    border-top-left-radius: 0;
    box-shadow: 0 1px 2px rgba(0,0,0,0.08);
}

.wa-msg.user {
    background-color: #E2F9C3; /* WA User message green */
    color: var(--text-primary);
    align-self: flex-end;
    border-top-right-radius: 0;
    box-shadow: 0 1px 2px rgba(0,0,0,0.08);
}

.wa-msg-time {
    display: block;
    text-align: right;
    font-size: 0.7rem;
    color: var(--text-light);
    margin-top: 4px;
}

/* Quick Options */
.wa-options-wrapper {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-self: flex-start;
    width: 85%;
    margin-top: 4px;
}

.wa-opt-btn {
    background-color: #FFF;
    border: 1px solid var(--border-color);
    padding: 8px 14px;
    border-radius: 20px;
    font-size: 0.82rem;
    text-align: left;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition-fast);
    box-shadow: var(--shadow-sm);
    color: var(--primary);
}

.wa-opt-btn:hover {
    background-color: var(--primary);
    color: #FFF;
    border-color: var(--primary);
}

/* Typings */
.wa-typing {
    background-color: #FFFFFF;
    align-self: flex-start;
    padding: 10px 14px;
    border-radius: 12px;
    border-top-left-radius: 0;
    display: flex;
    align-items: center;
    gap: 4px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.08);
}

.wa-typing span {
    width: 6px;
    height: 6px;
    background-color: var(--text-light);
    border-radius: 50%;
    display: block;
    animation: typingBounce 1s infinite alternate;
}

.wa-typing span:nth-child(2) {
    animation-delay: 0.2s;
}

.wa-typing span:nth-child(3) {
    animation-delay: 0.4s;
}

/* Footer / Input area */
.wa-chat-footer {
    background-color: #F0F2F5;
    padding: 10px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-top: 1px solid var(--border-color);
}

.wa-input {
    flex: 1;
    padding: 10px 16px;
    background-color: #FFF;
    border: none;
    border-radius: 24px;
    font-size: 0.88rem;
}

.wa-input:focus {
    outline: none;
}

.wa-send {
    background-color: #075E54;
    color: #FFF;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-fast);
}

.wa-send:hover {
    background-color: #0c7569;
    transform: scale(1.05);
}

/* ==========================================================================
   ANIMATIONS & REVEAL CLASSES
   ========================================================================== */
@keyframes msgIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes typingBounce {
    from {
        transform: translateY(0);
    }
    to {
        transform: translateY(-5px);
    }
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Delay modifiers for scroll animations */
.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }
.delay-300 { transition-delay: 0.3s; }
.delay-400 { transition-delay: 0.4s; }

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */
@media (max-width: 992px) {
    .hero-slider-container {
        height: 70vh;
    }
    .slide-title {
        font-size: 2.75rem;
    }
    .about-section {
        flex-direction: column-reverse;
        gap: 40px;
    }
    .contact-layout {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: #FFF;
        flex-direction: column;
        align-items: center;
        padding-top: 50px;
        gap: 30px;
        transform: translateX(100%);
        transition: transform 0.4s ease;
        box-shadow: 0 10px 15px rgba(0,0,0,0.05);
    }
    .nav-menu.open {
        transform: translateX(0);
    }
    .mobile-toggle {
        display: flex;
    }
    .hero-slider-container {
        height: 60vh;
    }
    .slide-title {
        font-size: 2rem;
    }
    .slide-description {
        font-size: 1rem;
    }
    .section-title {
        font-size: 1.75rem;
    }
    .category-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}

@media (max-width: 576px) {
    .slide-actions {
        flex-direction: column;
        width: 100%;
        max-width: 280px;
        margin: 0 auto;
        gap: 10px;
    }
    .slide-actions a, .slide-actions button {
        width: 100%;
        text-align: center;
        padding: 12px 20px;
    }
    .hero-slider-container {
        height: 65vh;
        min-height: 480px;
    }
    .slide-title {
        font-size: 1.75rem;
    }
    .about-metrics {
        grid-template-columns: 1fr;
        gap: 12px;
    }
}