:root {
    --primary-bg: #FFFFFF;
    --secondary-bg: #F8FAFC;
    --text-main: #1E293B;
    --text-muted: #475569;
    --accent: #2563EB;
    --accent-hover: #1D4ED8;
    --white: #FFFFFF;
    --border-radius: 8px;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

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

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

h1, h2, h3, h4 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header & Nav */
header {
    padding: 1.5rem 0;
    background: var(--white);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid #E2E8F0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo img, .footer-logo {
    height: 80px;
    width: auto;
    display: block;
}

.logo-text {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: -0.5px;
}

.footer-logo {
    height: 80px;
    margin-bottom: 1rem;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    background-color: white;
}

.btn-nav {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 600;
    padding: 0.5rem 1rem;
    border: 1px solid var(--accent);
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
}

.btn-nav:hover {
    background: var(--accent);
    color: var(--white);
}

/* Hero Section */
.hero {
    padding: 6rem 0;
    text-align: center;
    background: radial-gradient(circle at top right, #eff6ff, var(--white));
}

.hero h1 {
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-main);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.btn-primary {
    text-decoration: none;
    background-color: var(--accent);
    color: var(--white);
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 15px -3px rgba(37, 99, 235, 0.3);
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 20px 25px -5px rgba(37, 99, 235, 0.4);
}

/* Services Section */
.services {
    padding: 6rem 0;
    background-color: var(--secondary-bg);
}

.section-title {
    text-align: center;
    font-size: 2.25rem;
    margin-bottom: 4rem;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--accent);
    margin: 1rem auto;
    border-radius: 2px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--white);
    padding: 2.5rem 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent);
}

.service-card i {
    color: var(--accent);
    width: 40px;
    height: 40px;
    margin-bottom: 1.5rem;
}

.service-card h3 {
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.service-card p {
    color: var(--text-muted);
    font-size: 1rem;
}

/* Case Studies */
.cases {
    padding: 6rem 0;
    background: var(--white);
}

.case-card {
    background: var(--secondary-bg);
    border-left: 6px solid var(--accent);
    padding: 3rem 2rem;
    border-radius: var(--border-radius);
    max-width: 800px;
    margin: 0 auto;
    box-shadow: var(--shadow);
}

.case-tag {
    display: inline-block;
    background: var(--accent);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.case-content h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.case-result {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid #E2E8F0;
    color: var(--text-main);
}

/* Testimonials */
.testimonials {
    padding: 6rem 0;
    background-color: var(--secondary-bg);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    font-style: italic;
    position: relative;
}

.testimonial-author {
    display: block;
    margin-top: 1.5rem;
    font-style: normal;
    font-weight: 700;
    color: var(--accent);
}

/* Contact Section */
.contact-section {
    padding: 6rem 0;
    background: var(--white);
}

.contact-container {
    max-width: 600px;
    margin: 0 auto;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    background: var(--secondary-bg);
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    font-size: 0.9rem;
}

.form-group input, .form-group textarea {
    padding: 0.75rem;
    border: 1px solid #E2E8F0;
    border-radius: var(--border-radius);
    font-family: inherit;
}

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

/* WhatsApp Floating Button */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 40px;
    right: 40px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 2px 2px 10px rgba(0,0,0,0.2);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    background-color: #128C7E;
}

.whatsapp-float i {
    width: 32px;
    height: 32px;
}


/* Footer */
footer {
    background: var(--text-main);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-brand .logo {
    color: var(--white);
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.footer-brand .logo span {
    color: var(--accent);
}

.footer-brand p {
    opacity: 0.8;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    opacity: 0.6;
}

/* Responsive */
@media (max-width: 768px) {
    nav {
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }

    .logo {
        flex-direction: column;
        gap: 0.5rem;
    }

    .logo-text {
        font-size: 1.2rem;
    }

    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
    }
}