:root {
    --primary-color: #1a5f7a;
    --secondary-color: #86cbd8;
    --accent-color: #0d9488;
    --text-color: #1e293b;
    --text-light: #64748b;
    --bg-color: #f8fafc;
    --white: #ffffff;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius: 0.75rem;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --header-height: 80px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
}

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

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

ul {
    list-style: none;
}

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

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

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

.btn-primary:hover {
    background-color: #134e62;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background-color: #72b9c7;
    transform: translateY(-2px);
}

/* Header Styles */
header {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
    padding: 1rem 0;
}

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

.logo img {
    height: 60px;
}

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

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

/* Hero Section */
.hero {
    padding: 8rem 0;
    background: linear-gradient(135deg, #e0f2fe 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 600px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

/* Section Common */
section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-title p {
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

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

.card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

/* WhatsApp Button */
.whatsapp-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: #25d366;
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
}

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

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h4 {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.875rem;
    color: var(--secondary-color);
}

@media (max-width: 991px) {
    :root {
        --header-height: 70px;
    }

    section {
        padding: 4rem 0;
    }

    .hero {
        padding: 4rem 0;
        text-align: center;
    }

    .hero .container {
        flex-direction: column !important;
        gap: 2rem !important;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero h1 {
        font-size: 2.75rem;
    }

    .hero-image {
        width: 100% !important;
        order: -1;
    }

    .flex-responsive {
        flex-direction: column !important;
        gap: 2rem !important;
    }
}

@media (max-width: 768px) {
    .mobile-toggle {
        display: block !important;
        font-size: 1.5rem;
        color: var(--primary-color);
        cursor: pointer;
        z-index: 1001;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        box-shadow: -5px 0 15px rgba(0,0,0,0.1);
        transition: var(--transition);
        z-index: 1000;
    }

    .nav-links.active {
        right: 0;
    }

    .nav-cta {
        display: none;
    }

    .nav-links .btn {
        display: inline-block;
    }

    .hero h1 {
        font-size: 2.25rem;
    }

    .section-title h2 {
        font-size: 2rem;
    }

    .card-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .footer-col ul, .social-links {
        align-items: center;
        justify-content: center;
    }

    .footer-col ul {
        display: flex;
        flex-direction: column;
    }

    /* Fix for services alternating layout */
    .services-overview .container > div {
        flex-direction: column !important;
        text-align: center;
    }

    .services-overview .container > div:nth-child(even) {
        flex-direction: column !important;
    }
}

body.menu-open {
    overflow: hidden;
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: none;
    z-index: 999;
}

.overlay.active {
    display: block;
}
/* Modal Styles */
.modal {
    display: none;
    position: fixed !important;
    z-index: 9999 !important;
    left: 0 !important;
    top: 0 !important;
    width: 100% !important;
    height: 100% !important;
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    overflow: hidden;
}

.modal.is-visible {
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: var(--white);
    margin: 2% auto;
    width: 90%;
    max-width: 1000px;
    height: 90vh;
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    animation: modalFadeIn 0.3s ease-out;
}

@keyframes modalFadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.modal-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid #eef2f6;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    margin: 0;
    color: var(--primary-color);
}

.close-modal {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--text-light);
    cursor: pointer;
    line-height: 1;
    width: 44px;
    height: 44px;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition);
}

.close-modal:hover {
    color: var(--primary-color);
    transform: rotate(90deg);
}

.modal-body {
    flex: 1;
    overflow: hidden;
    background-color: #f1f5f9;
}

.modal-footer {
    padding: 1rem 2rem;
    border-top: 1px solid #eef2f6;
    text-align: right;
}

@media (max-width: 768px) {
    .modal-content {
        margin: 0;
        width: 100%;
        height: 100%;
        border-radius: 0;
        display: flex;
        flex-direction: column;
    }
    
    .modal-header {
        padding: 1rem;
    }
    
    .modal-body {
        -webkit-overflow-scrolling: touch;
        overflow-y: auto;
    }
    
    .modal-body iframe {
        height: 100% !important;
        min-height: 500px;
    }
}