/* ==========================================================================
   CSS VARIABLES & DESIGN SYSTEM
   ========================================================================== */
:root {
    /* Colors - Based on logo (Blue, Black, White) */
    --primary: #0056b3;      /* Deep Professional Blue */
    --primary-light: #007bff;
    --primary-dark: #004085;
    
    --dark: #121212;         /* True Dark */
    --dark-slate: #212529;   /* Slate Black */
    --gray-dark: #495057;
    --gray: #6c757d;
    --gray-light: #f8f9fa;
    --white: #ffffff;
    
    --success: #25D366;      /* WhatsApp Green */
    
    /* Typography */
    --font-primary: 'Inter', system-ui, -apple-system, sans-serif;
    
    /* Spacing */
    --section-pad: clamp(3rem, 8vw, 5rem) 0;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.15);
    
    /* Transitions */
    --transition: all 0.3s ease;
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px; /* Account for sticky header */
    overflow-x: hidden;
}

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

h1, h2, h3, h4, h5, h6 {
    color: var(--dark-slate);
    font-weight: 700;
    line-height: 1.2;
}

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

ul {
    list-style: none;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 20px;
    padding-right: 20px;
}

@media (max-width: 576px) {
    .container {
        padding-left: 16px;
        padding-right: 16px;
    }
}

.section {
    padding: var(--section-pad);
}

.bg-light {
    background-color: var(--gray-light);
}

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

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

.text-white h2, 
.text-white h3 {
    color: var(--white);
}

.mt-4 { margin-top: 2rem; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* ==========================================================================
   COMPONENTS
   ========================================================================== */

/* Section Headers */
.section-header {
    margin-bottom: 3.5rem;
}

.section-header h2 {
    font-size: clamp(2rem, 5vw, 2.5rem);
    margin-bottom: 0.5rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--gray);
    max-width: 600px;
}

.section-header.text-center .section-subtitle {
    margin-left: auto;
    margin-right: auto;
}

.divider {
    height: 4px;
    width: 60px;
    background-color: var(--primary);
    border-radius: 2px;
    margin-top: 1rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: 4px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--white);
    color: var(--dark-slate);
}

.btn-secondary:hover {
    background-color: var(--gray-light);
    color: var(--primary);
    transform: translateY(-2px);
}

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

.btn-whatsapp:hover {
    background-color: #1EBE55;
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

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

/* Badges */
.badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.badge-primary {
    background-color: rgba(0, 86, 179, 0.1);
    color: var(--white);
    border: 1px solid rgba(255,255,255,0.3);
}

/* ==========================================================================
   NAVIGATION
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--white);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    padding: 1rem 0;
}

.header.scrolled {
    padding: 0.5rem 0;
    box-shadow: var(--shadow-md);
}

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

.logo img {
    height: 90px; /* Increased from 50px for better visibility */
    width: auto;
    transition: var(--transition);
}

.header.scrolled .logo img {
    height: 70px;
}

.nav-list {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--dark-slate);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: var(--transition);
}

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

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

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

.nav-cta {
    padding: 0.6rem 1.2rem;
}

.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--dark-slate);
    cursor: pointer;
    padding: 0.5rem;
    margin-right: -0.5rem;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
    position: relative;
    min-height: 100svh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    padding-bottom: 4rem;
    background-color: var(--dark);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: linear-gradient(rgba(18, 18, 18, 0.8), rgba(0, 40, 85, 0.8)), url('https://images.unsplash.com/photo-1558494949-ef010cbdcc31?auto=format&fit=crop&q=80&w=2000');
    background-size: cover;
    background-position: center;
    z-index: 1;
}

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

.hero-content {
    max-width: 800px;
    color: var(--white);
}

.hero-title {
    font-size: clamp(2.2rem, 6vw, 3.5rem);
    color: var(--white);
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    font-weight: 300;
    opacity: 0.9;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ==========================================================================
   ABOUT SECTION
   ========================================================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

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

.experience-card {
    position: absolute;
    bottom: -20px;
    right: -20px;
    background-color: var(--primary);
    color: var(--white);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    z-index: 2;
}

.experience-number {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
}

.experience-text {
    font-size: 0.9rem;
    font-weight: 500;
}

.about-content h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
}

.about-content p {
    margin-bottom: 1rem;
    font-size: 1.05rem;
}

/* ==========================================================================
   SERVICES SECTION
   ========================================================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
    gap: 2rem;
}

.service-card {
    display: block;
    background-color: var(--white);
    padding: 2.5rem 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border-bottom: 4px solid transparent;
    text-decoration: none;
    color: inherit;
    position: relative;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-bottom-color: var(--primary);
}

.service-icon {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.service-link {
    display: inline-block;
    margin-top: 1rem;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
}

.service-card:hover .service-link {
    color: var(--primary-dark);
    padding-left: 5px;
}

.service-title {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

/* ==========================================================================
   WHY CHOOSE US
   ========================================================================== */
.why-choose-us {
    background-color: var(--dark-slate);
    background-image: linear-gradient(rgba(33, 37, 41, 0.9), rgba(0, 86, 179, 0.9)), url('https://images.unsplash.com/photo-1544197150-b99a580bb7a8?auto=format&fit=crop&q=80&w=2000');
    background-attachment: fixed;
    background-size: cover;
    background-position: center;
}

.why-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.why-list {
    margin-top: 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.why-list li {
    font-size: 1.1rem;
    display: flex;
    align-items: flex-start;
    gap: 0.8rem;
}

.why-list i {
    color: var(--primary-light);
    font-size: 1.2rem;
    margin-top: 4px;
}

.why-stats {
    display: flex;
    justify-content: center;
}

.stat-box {
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 3rem;
    border-radius: 50%;
    width: 250px;
    height: 250px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.stat-number {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-light);
    line-height: 1;
}

.stat-text {
    font-size: 1.1rem;
    font-weight: 500;
    margin-top: 0.5rem;
}

/* ==========================================================================
   TRUSTED CLIENTS
   ========================================================================== */
.clients-marquee {
    overflow: hidden;
    width: 100%;
    position: relative;
    padding: 1rem 0;
}

.clients-marquee-track {
    display: flex;
    gap: 2rem;
    width: max-content;
    animation: scroll-marquee 20s linear infinite;
}

/* Pause animation on hover */
.clients-marquee:hover .clients-marquee-track {
    animation-play-state: paused;
}

@keyframes scroll-marquee {
    0% { transform: translateX(0); }
    /* Shifts exactly half the track width (one full original set) minus half a gap. 
       Since we have 8 items, 4 original and 4 duplicated, -50% gets us precisely 
       back to the start of the loop smoothly. */
    100% { transform: translateX(calc(-50% - 1rem)); }
}

.client-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-light);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    min-width: 250px;
}

.client-logo {
    height: 80px;
    width: auto;
    object-fit: contain;
    border-radius: 4px;
}

.client-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-5px);
    border-color: var(--primary-light);
}

.client-name {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--gray-dark);
}

/* ==========================================================================
   REVIEWS SECTION
   ========================================================================== */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
    gap: 2rem;
}

[class*="elfsight-app"] {
    max-width: 100%;
    overflow: hidden;
}

.review-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.review-stars {
    color: #FFD700; /* Gold */
    margin-bottom: 1rem;
}

.review-text {
    font-style: italic;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.review-author {
    display: flex;
    align-items: center;
    gap: 1rem;
    border-top: 1px solid var(--gray-light);
    padding-top: 1rem;
}

.review-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-light);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
}

.review-info h4 {
    font-size: 1rem;
    margin-bottom: 0.2rem;
}

.review-source {
    font-size: 0.8rem;
    color: var(--gray);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-card {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 1.5rem;
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.contact-card:hover {
    box-shadow: var(--shadow-md);
}

.contact-icon {
    background-color: rgba(0, 86, 179, 0.1);
    color: var(--primary);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-details h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.contact-details a {
    display: block;
    color: var(--gray-dark);
    margin-bottom: 0.2rem;
}

.contact-details a:hover {
    color: var(--primary);
}

.contact-details p {
    margin-bottom: 0.2rem;
}

.link-action {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary);
    font-weight: 600;
    margin-top: 0.5rem;
}

.contact-map {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    min-height: 400px;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
    background-color: var(--dark-slate);
    color: var(--gray-light);
    padding: 4rem 0 1rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    height: 60px;
    margin-bottom: 1.5rem;
}

.footer-desc {
    margin-bottom: 1rem;
    color: var(--gray);
}

.footer-est {
    font-weight: 600;
    color: var(--primary-light);
}

.footer h3 {
    color: var(--white);
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--primary);
}

.footer-links ul li {
    margin-bottom: 0.8rem;
}

.footer-links ul li a {
    color: var(--gray-light);
    transition: var(--transition);
}

.footer-links ul li a:hover {
    color: var(--primary-light);
    padding-left: 5px;
}

.footer-contact p {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
    color: var(--gray-light);
}

.footer-contact i {
    color: var(--primary-light);
    margin-top: 4px;
}

.social-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255,255,255,0.1);
    color: var(--white);
    border-radius: 50%;
    font-size: 1.2rem;
    transition: var(--transition);
}

.social-icon:hover {
    background-color: var(--primary);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: var(--gray);
    font-size: 0.9rem;
}

/* ==========================================================================
   FLOATING BUTTONS
   ========================================================================== */
.floating-whatsapp {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: var(--success);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    transition: var(--transition);
    animation: pulse 2s infinite;
}

.floating-whatsapp:hover {
    transform: scale(1.1);
    color: var(--white);
}

@keyframes pulse {
    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);
    }
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .why-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .mobile-nav-toggle {
        display: block;
    }
    
    .primary-navigation {
        position: fixed;
        top: 80px; /* Header height */
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: var(--white);
        flex-direction: column;
        transition: var(--transition);
        box-shadow: var(--shadow-md);
        overflow-y: auto;
    }
    
    .primary-navigation.active {
        left: 0;
    }
    
    .logo img {
        height: 50px;
    }
    
    .header.scrolled .logo img {
        height: 45px;
    }
    
    .nav-list {
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        align-items: flex-start;
    }
    
    .nav-list li {
        width: 100%;
    }
    
    .nav-link {
        display: block;
        padding: 0.5rem 0;
        font-size: 1.1rem;
    }
    
    .nav-cta {
        display: inline-block;
        margin-top: 1rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .experience-card {
        right: 20px;
    }
    
    .why-list {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-map {
        min-height: 300px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-cta {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-cta .btn {
        width: 100%;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .floating-whatsapp {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
}