/* 
   Efada Facility Management - Main Styles
   - Mobile First Approach
   - Dark/Light Theme Support
   - Clean, Corporate, Modern
*/

:root {
    /* Brand Colors */
    --primary-color: #FFA500;
    --primary-dark: #cc8400;
    --primary-glow: rgba(255, 165, 0, 0.4);
    
    /* Dark Theme (Default) */
    --bg-color: #0D0D0D;
    --bg-secondary: #1A1A1A;
    --text-color: #FFFFFF;
    --text-muted: #B3B3B3;
    --card-bg: #1A1A1A;
    --border-color: #333333;
    --nav-bg: rgba(13, 13, 13, 0.95);
    
    /* Dimensions */
    --header-height: 80px;
    --container-width: 1200px;
    --border-radius: 12px;
    
    /* Transitions */
    --transition-fast: 0.3s ease;
    --transition-smooth: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme Variables */
[data-theme="light"] {
    --bg-color: #F5F7FA;
    --bg-secondary: #FFFFFF;
    --text-color: #111111; /* Strong dark text for light mode */
    --text-muted: #444444; /* Darker muted text */
    --card-bg: #FFFFFF;
    --border-color: #E0E0E0;
    --nav-bg: rgba(255, 255, 255, 0.95);
}

/* =========================================
   Reset & Typography
   ========================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color var(--transition-fast), color var(--transition-fast);
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

/* =========================================
   Reusable Classes & Utilities
   ========================================= */
.ef-container {
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

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

.ef-section-header {
    margin-bottom: 60px;
}

.ef-section-header.center {
    text-align: center;
}

.ef-section-title {
    font-size: 2rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 15px;
}

.ef-section-line {
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    margin-top: 10px;
}

.ef-section-header.center .ef-section-line {
    margin: 10px auto 0;
}

/* Buttons */
.ef-btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: var(--transition-fast);
    font-family: 'Montserrat', sans-serif; /* Explicit font fix */
}

.ef-btn-primary {
    background: var(--primary-color);
    color: #000;
}

.ef-btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.ef-btn-glow {
    box-shadow: 0 0 20px var(--primary-glow);
}

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

.ef-btn-text {
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 600;
    margin-top: 5px;
    display: inline-block;
    font-family: 'Montserrat', sans-serif;
}

/* =========================================
   Mouse Glow Effect
   ========================================= */
.ef-mouse-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 180px;
    height: 180px;
    background: radial-gradient(circle, var(--primary-glow) 0%, rgba(0,0,0,0) 70%);
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 9999;
    mix-blend-mode: screen;
    filter: blur(40px);
    opacity: 0; 
    transition: opacity 0.3s ease; /* Faster transition for responsiveness */
}

/* =========================================
   Header & Navigation
   ========================================= */
.ef-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: transparent;
    z-index: 1000;
    transition: background-color var(--transition-fast), box-shadow var(--transition-fast);
}

.ef-header.scrolled {
    background: var(--nav-bg);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

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

.ef-logo {
    height: 40px;
    width: auto;
}

.ef-nav-list {
    display: none;
}

@media (min-width: 992px) {
    .ef-nav-list {
        display: flex;
        gap: 30px;
    }

    .ef-nav-link {
        font-weight: 500;
        font-size: 0.95rem;
        position: relative;
    }

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

    .ef-nav-link::after {
        content: '';
        position: absolute;
        bottom: -5px;
        left: 0;
        width: 0;
        height: 2px;
        background: var(--primary-color);
        transition: width 0.3s ease;
    }

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

/* Theme Toggle */
.ef-header-controls {
    display: flex;
    align-items: center;
    gap: 15px;
}

.ef-theme-toggle {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    width: 60px;
    height: 30px;
    border-radius: 30px;
    position: relative;
    cursor: pointer;
    overflow: hidden;
    display: flex;
    align-items: center;
    padding: 0; /* Reset padding to handle inner track */
}

.ef-theme-toggle-track {
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    color: var(--text-muted);
    padding: 0 6px; /* Added inner padding so icons don't touch edges */
    position: relative;
}

.ef-theme-toggle-thumb {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 24px;
    height: 24px;
    background: var(--primary-color);
    border-radius: 50%;
    transition: transform var(--transition-fast);
    z-index: 1;
}

[data-theme="light"] .ef-theme-toggle-thumb {
    transform: translateX(30px);
}

/* Mobile Menu Btn */
.ef-mobile-menu-btn {
    background: none;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 20px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

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

.ef-mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 3px; /* Thicker lines */
    background-color: var(--text-color);
    transition: var(--transition-fast);
}

/* Mobile Menu Overlay */
.ef-mobile-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: 0;
    background: var(--nav-bg);
    overflow: hidden;
    transition: height var(--transition-fast);
    z-index: 999;
    backdrop-filter: blur(10px);
}

.ef-mobile-menu.open {
    height: calc(100vh - var(--header-height));
}

.ef-mobile-nav-list {
    padding: 40px;
    text-align: center;
}

.ef-mobile-link {
    display: block;
    padding: 15px;
    font-size: 1.2rem;
    border-bottom: 1px solid var(--border-color);
}

/* =========================================
   Hero Section (Redesigned)
   ========================================= */
.ef-hero {
    min-height: 100vh;
    width: 100%;
    position: relative;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
    overflow: hidden;
}

.ef-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(13,13,13,0.95) 0%, rgba(26,26,26,0.8) 100%);
    z-index: -1;
}

[data-theme="light"] .ef-hero-bg {
    background: linear-gradient(135deg, #ffffff 0%, #f0f2f5 100%);
}

.ef-hero-content-split {
    display: flex;
    flex-direction: column-reverse; /* Text on bottom for mobile */
    align-items: center;
    gap: 40px;
    text-align: center;
    width: 100%;
}

@media (min-width: 992px) {
    .ef-hero-content-split {
        flex-direction: row;
        text-align: left;
        justify-content: space-between;
        align-items: center;
    }
    
    .ef-hero-text {
        max-width: 50%;
    }
    
    .ef-hero-visual {
        max-width: 45%;
        display: flex;
        justify-content: center;
    }
}

.ef-hero-logo {
    max-width: 250px;
    margin-bottom: 20px;
}

@media (min-width: 992px) {
    /* Align logo left on desktop if needed, or keep centered if using split but let's assume left align for text block */
    .ef-hero-text .ef-hero-logo {
        margin-left: 0; 
    }
}

.ef-hero-tagline {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    /* Gradient text for dark mode */
    background: linear-gradient(to right, #fff, #bbb);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

[data-theme="light"] .ef-hero-tagline {
    background: none;
    -webkit-text-fill-color: initial;
    color: #111111; /* Explicit dark color */
}

.ef-hero-desc {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    line-height: 1.6;
}

/* Mobile Hero Adjustments */
@media (max-width: 768px) {
    .ef-hero-logo {
        max-width: 160px; /* Reduced by ~35% */
        margin-bottom: 12px;
    }

    .ef-hero-tagline {
        font-size: 2rem; /* Slightly smaller for mobile */
        margin-bottom: 12px;
        line-height: 1.3;
        padding: 0 5px; /* Ensure wrapping */
    }

    .ef-hero-desc {
        margin-bottom: 25px;
        font-size: 1.05rem;
    }
    
    .ef-hero-content-split {
        gap: 30px; /* Reduced spacing */
        padding-left: 20px; /* Ensure padding */
        padding-right: 20px;
    }
}

[data-theme="light"] .ef-hero-desc {
    color: #333333; /* Darker grey for readability */
}

.ef-hero-icon {
    width: 100%;
    max-width: 400px;
    height: auto;
    filter: drop-shadow(0 0 30px rgba(255, 165, 0, 0.3)); /* Orange glow */
    animation: iconFloat 6s ease-in-out infinite;
}

@keyframes iconFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* =========================================
   About Section
   ========================================= */
.ef-about {
    position: relative;
    overflow: hidden;
}

.ef-about-watermark {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60%;
    opacity: 0.03;
    pointer-events: none;
    z-index: 0;
}

[data-theme="light"] .ef-about-watermark {
    opacity: 0.05;
}

.ef-about-content {
    position: relative;
    z-index: 1;
}

.ef-about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}

@media (min-width: 992px) {
    .ef-about-grid {
        grid-template-columns: 3fr 2fr;
        align-items: center;
    }
}

.ef-about-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: var(--text-muted);
}

.ef-about-highlights {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.ef-highlight-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 20px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    gap: 15px;
    transition: transform var(--transition-fast);
}

.ef-highlight-item:hover {
    transform: translateX(10px);
    border-color: var(--primary-color);
}

.ef-highlight-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
}

.ef-highlight-label {
    font-weight: 600;
    font-size: 1rem;
}

/* =========================================
   Services Section
   ========================================= */
.ef-services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

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

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

.ef-service-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 30px 20px;
    text-align: center;
    transition: transform 0.1s, box-shadow var(--transition-fast);
}

.ef-service-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.ef-service-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.ef-service-title {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

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

/* =========================================
   Projects Section
   ========================================= */
.ef-projects-slider-container {
    padding: 20px 0;
    overflow-x: auto;
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.ef-projects-slider-container::-webkit-scrollbar {
    display: none;
}

.ef-projects-slider {
    display: flex;
    gap: 30px;
    padding: 0 20px;
    width: max-content;
}

.ef-project-card {
    width: 320px;
    height: 420px;
    border-radius: var(--border-radius);
    overflow: hidden;
    position: relative;
    flex-shrink: 0;
    background: #000;
    transition: transform var(--transition-fast);
    cursor: pointer;
}

.ef-project-card:hover {
    transform: scale(1.02);
}

.ef-project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

.ef-project-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to top, rgba(0,0,0,0.95), transparent);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 20px;
    pointer-events: none;
    min-height: 50%;
}

/* Refined Project Typography */
.ef-project-cat {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--primary-color);
    margin-bottom: 6px;
    display: block;
    text-shadow: 0 2px 4px rgba(0,0,0,0.8);
}

.ef-project-title {
    font-size: 1.4rem;
    color: #fff;
    font-weight: 800; /* Bolder */
    margin-bottom: 6px;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0,0,0,0.8);
}

.ef-project-meta {
    font-size: 0.85rem;
    color: #ddd; /* Slightly lighter for visibility */
    font-weight: 500;
    text-shadow: 0 1px 2px rgba(0,0,0,0.8);
    opacity: 0.9;
}

.ef-project-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: rgba(0,0,0,0.8);
    color: #fff;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid var(--border-color);
    z-index: 2;
}

/* =========================================
   Location Section
   ========================================= */
.ef-location-map-wrapper {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden; /* Ensure image doesn't bleed on zoom */
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    cursor: pointer; /* Added by JS but good to enforce here */
    transform: translateZ(0); /* Fix for Safari overflow clipping */
}

/* Mobile Aspect Ratio 16:9 */
@media (max-width: 600px) {
    .ef-location-map-wrapper {
        aspect-ratio: 16 / 9;
    }
    
    .ef-location-img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
}

.ef-location-img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.35s ease-out; /* Smooth zoom transition */
    will-change: transform;
}

/* Hover Zoom Effect */
.ef-location-map-wrapper:hover .ef-location-img {
    transform: scale(1.03);
}

.ef-map-pin-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.ef-map-pin {
    width: 24px;
    height: 24px;
    background: var(--primary-color);
    border: 3px solid #fff;
    border-radius: 50%;
    box-shadow: 0 0 20px var(--primary-color);
    animation: pinPulse 2s infinite;
}

@keyframes pinPulse {
    0% { box-shadow: 0 0 0 0 rgba(255, 165, 0, 0.7); }
    70% { box-shadow: 0 0 0 15px rgba(255, 165, 0, 0); }
    100% { box-shadow: 0 0 0 0 rgba(255, 165, 0, 0); }
}

.ef-map-card {
    margin-top: 15px;
    background: var(--card-bg);
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    text-align: center;
    border: 1px solid var(--border-color);
    min-width: 200px;
    opacity: 0;
    transform: translateY(10px);
    transition: var(--transition-fast);
    /* Make card visible on hover or always if preferred, let's keep hover */
}

.ef-location-map-wrapper:hover .ef-map-card {
    opacity: 1;
    transform: translateY(0);
}

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

@media (min-width: 992px) {
    .ef-contact-wrapper {
        grid-template-columns: 1fr 1fr;
        align-items: center;
    }
}

.ef-contact-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.ef-contact-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 40px;
}

.ef-contact-link {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.ef-contact-detail {
    margin-left: 35px;
    color: var(--text-muted);
}

.ef-form {
    background: var(--card-bg);
    padding: 30px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

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

.ef-form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
}

.ef-input {
    width: 100%;
    padding: 12px 15px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-color);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-fast);
}

.ef-input:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 2px rgba(255, 165, 0, 0.2);
}

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

.ef-form-status {
    margin-top: 15px;
    text-align: center;
    font-size: 0.9rem;
}

.ef-form-status.success { color: #4CAF50; }
.ef-form-status.error { color: #f44336; }

/* =========================================
   Footer (Redesigned)
   ========================================= */
.ef-footer {
    background: #000; /* Force dark background always */
    padding: 60px 0 30px;
    border-top: 2px solid #222;
    position: relative;
}

.ef-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    opacity: 0.5;
}

.ef-footer-content-split {
    display: flex;
    flex-direction: column;
    gap: 40px;
    align-items: center;
    text-align: center;
}

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

.ef-footer-left {
    max-width: 350px;
}

.ef-footer-logo {
    height: 30px;
    margin-bottom: 15px;
}

@media (max-width: 767px) {
    .ef-footer-logo {
        margin: 0 auto 15px;
    }
}

.ef-footer-desc {
    color: #888;
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.ef-footer-copy {
    color: #666;
    font-size: 0.8rem;
}

.ef-footer-right {
    display: flex;
    flex-direction: column;
    gap: 30px; /* Increased gap for better balance */
    align-items: center;
}

@media (min-width: 768px) {
    .ef-footer-right {
        align-items: flex-end;
    }
}

.ef-footer-links {
    display: flex;
    gap: 25px;
}

.ef-footer-links a {
    color: #ccc;
    font-size: 0.95rem;
    font-weight: 500;
}

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

/* Social Media Icons Styling */
.ef-footer-socials {
    display: flex;
    gap: 15px; /* Equal spacing */
}

.ef-footer-socials a {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    
    /* Dark Mode Defaults */
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 50%;
    
    /* Soft blur/shadow */
    backdrop-filter: blur(4px);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    
    transition: all 0.3s ease;
}

/* Icon Color (via filter for SVGs) */
.ef-footer-socials img {
    width: 20px;
    height: 20px;
    transition: all 0.3s ease;
    
    /* Default White for Dark Mode */
    filter: brightness(0) invert(1); 
}

/* Hover Effects */
.ef-footer-socials a:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 15px rgba(255, 165, 0, 0.4); /* Orange glow */
    transform: translateY(-2px);
}

.ef-footer-socials a:hover img {
    /* Turn to Orange #FFA500 */
    /* CSS Filter Generator used for #FFA500 */
    filter: brightness(0) saturate(100%) invert(66%) sepia(35%) saturate(2768%) hue-rotate(360deg) brightness(101%) contrast(106%);
}

/* Light Mode Overrides */
[data-theme="light"] .ef-footer-socials a {
    border-color: rgba(0, 0, 0, 0.1);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .ef-footer-socials img {
    /* Dark color #1A1A1A */
    filter: brightness(0) saturate(100%) invert(6%) sepia(0%) saturate(23%) hue-rotate(334deg) brightness(98%) contrast(92%);
}

[data-theme="light"] .ef-footer-socials a:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 15px rgba(255, 165, 0, 0.3);
}

[data-theme="light"] .ef-footer-socials a:hover img {
    /* Orange #FFA500 */
    filter: brightness(0) saturate(100%) invert(66%) sepia(35%) saturate(2768%) hue-rotate(360deg) brightness(101%) contrast(106%);
}

/* =========================================
   Floating WhatsApp
   ========================================= */
.ef-whatsapp-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #FFA500, #FF8C00);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 20px rgba(255, 165, 0, 0.4);
    z-index: 1000;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s;
    animation: waEntrance 0.8s ease-out forwards;
}

/* Ensure the icon itself is untouched/original */
.ef-whatsapp-btn img {
    width: 35px;
    height: 35px;
    object-fit: contain;
    filter: none !important; /* Force no filters */
}

.ef-whatsapp-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 15px 30px rgba(255, 165, 0, 0.6);
}

@keyframes waEntrance {
    0% { opacity: 0; transform: translateY(50px) scale(0.5); }
    100% { opacity: 1; transform: translateY(0) scale(1); }
}

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