/* Variables */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --white-color: #ffffff;
    --gradient-primary: linear-gradient(135deg, #0d6efd 0%, #0056b3 100%);
    --box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --box-shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
    --border-radius: 0.375rem;
    --transition: all 0.15s ease-in-out;
    --font-family-base: 'Open Sans', sans-serif;
    --bg-color: #ffffff;
    --text-color: #212529;
    --section-padding: 4rem 1rem;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-base);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

/* Navbar Section */
.navbar {
    background: var(--white-color) !important;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.navbar-brand {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
    font-weight: 700;
    color: var(--primary-color) !important;
    text-decoration: none;
    transition: color var(--transition);
    max-width: 100%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.navbar-brand:hover,
.navbar-brand:focus {
    color: var(--secondary-color) !important;
}

.navbar-toggler {
    border: none;
    padding: var(--spacing-xs);
    background-color: transparent;
    transition: background-color var(--transition);
}

.navbar-toggler:focus {
    outline: 3px solid var(--primary-color);
    outline-offset: 2px;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='rgba(13, 110, 253, 1)' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
}

.navbar-nav {
    gap: var(--spacing-sm);
}

.nav-link {
    color: var(--dark-color) !important;
    font-weight: 500;
    padding: 0.75rem 1rem !important;
    transition: var(--transition);
    position: relative;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 2px;
    background: var(--primary-color);
}

.navbar-collapse {
    transition: max-height 0.3s ease-in-out;
}

/* Hero Section */
.hero-section {
    background: var(--gradient-primary);
    color: var(--white-color);
    min-height: 80vh;
    position: relative;
    overflow: hidden;
    padding: var(--section-padding);
    display: flex;
    align-items: center;
    text-align: left;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 1;
}

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

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

.hero-section h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-section .lead {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 400;
    margin-bottom: var(--spacing-lg);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
}

.hero-section .btn {
    padding: 0.75rem 2rem;
    font-size: clamp(1rem, 2vw, 1.125rem);
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: transform var(--transition), box-shadow var(--transition);
}

.hero-section .btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.hero-section .btn-outline-primary {
    border-color: var(--white-color);
    color: var(--white-color);
}

.hero-section .btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--box-shadow-lg);
}

/* Highlights Section */
.highlights-section {
    padding: var(--section-padding);
}

.highlights-section h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.highlights-section .fas {
    color: var(--primary-color);
}

/* Services Overview Section */
.services-overview-section {
    padding: var(--section-padding);
    background-color: var(--light-color);
}

.services-overview-section h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.services-overview-section .lead {
    font-size: clamp(1rem, 2vw, 1.25rem);
    margin-bottom: var(--spacing-lg);
}

.services-overview-section .fas {
    color: var(--primary-color);
}

/* Testimonials Section */
.testimonials-section {
    padding: var(--section-padding);
}

.testimonials-section h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.testimonials-section .card {
    border: none;
    box-shadow: var(--box-shadow);
}

/* CTA Section */
.cta-section {
    background-color: var(--light-color);
    padding: var(--section-padding);
    text-align: center;
}

.cta-section h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.cta-section .lead {
    font-size: clamp(1rem, 2vw, 1.25rem);
    margin-bottom: var(--spacing-md);
}

.cta-section .btn {
    padding: 0.75rem 2rem;
    font-size: clamp(1rem, 2vw, 1.125rem);
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: transform var(--transition), box-shadow var(--transition);
}

/* Footer Section */
.footer {
    background-color: var(--primary-color);
    color: var(--white-color);
    padding: var(--spacing-xl) var(--spacing-sm);
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
    justify-content: space-between;
    align-items: flex-start;
}

.footer-brand,
.footer-nav,
.footer-social,
.footer-copy {
    margin-bottom: var(--spacing-md);
}

.footer-logo {
    font-size: clamp(1.5rem, 4vw, 1.75rem);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.footer-tagline {
    font-size: clamp(0.875rem, 2vw, 1rem);
    opacity: 0.85;
}

.footer-nav-title {
    font-size: clamp(1.125rem, 3vw, 1.25rem);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.footer-nav ul {
    padding: 0;
    margin: 0;
    list-style: none;
}

.footer-nav li {
    margin-bottom: var(--spacing-xs);
}

.footer-nav a {
    color: var(--white-color);
    text-decoration: none;
    font-size: clamp(0.875rem, 2vw, 1rem);
    transition: color var(--transition), transform var(--transition);
}

.footer-nav a:hover,
.footer-nav a:focus {
    color: var(--light-color);
    transform: translateX(5px);
}

.footer-social a {
    color: var(--white-color);
    font-size: 1.5rem;
    transition: color var(--transition);
}

.footer-social a:hover,
.footer-social a:focus {
    color: var(--light-color);
}

.footer-copy {
    width: 100%;
    text-align: center;
    margin-top: var(--spacing-lg);
    font-size: clamp(0.75rem, 1.5vw, 0.95rem);
}

.footer-copy a {
    color: var(--white-color);
    text-decoration: underline;
    transition: color var(--transition);
}

.footer-copy a:hover,
.footer-copy a:focus {
    color: var(--light-color);
}

/* Contact Modal Styling */
.modal-content {
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow-lg);
    border: none;
    overflow: hidden;
}

.modal-header {
    background-color: var(--primary-color);
    color: var(--white-color);
    border-bottom: none;
    padding: 1.5rem;
}

.modal-title {
    font-weight: 700;
}

.modal-body {
    padding: 2rem;
    background-color: var(--light-color);
}

.modal-body form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.modal-body .form-control {
    border-radius: var(--border-radius);
    border: 1px solid var(--secondary-color);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.modal-body .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.modal-body .btn-primary {
    background-color: var(--primary-color);
    border: none;
    border-radius: var(--border-radius);
    padding: 0.75rem;
    font-weight: 600;
    transition: background-color var(--transition);
}

.modal-body .btn-primary:hover {
    background-color: #0056b3;
}

.modal-body .btn-secondary {
    border-radius: var(--border-radius);
    padding: 0.75rem;
}

.modal.fade .modal-dialog {
    transition: transform 0.3s ease-out;
    transform: translateY(-50px);
}

.modal.show .modal-dialog {
    transform: translateY(0);
}

/* Responsive Adjustments */
@media (max-width: 992px) {
    .navbar-nav {
        flex-direction: column;
        align-items: center;
        padding: var(--spacing-sm) 0;
    }

    .nav-link {
        padding: var(--spacing-sm);
        width: 100%;
        text-align: center;
    }

    .nav-link.active::after {
        display: none;
    }

    .hero-section {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-lg);
        min-height: 60vh;
    }

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

    .hero-cta {
        justify-content: center;
    }

    .footer-content {
        flex-direction: column;
        align-items: flex-start;
        text-align: left;
    }

    .footer-copy {
        text-align: left;
    }
}

@media (max-width: 576px) {
    .navbar-brand {
        font-size: clamp(1rem, 2.5vw, 1.25rem);
    }

    .nav-link {
        font-size: clamp(0.75rem, 1.5vw, 0.875rem);
    }

    .hero-section h1 {
        font-size: clamp(2rem, 5vw, 3rem);
    }

    .hero-section .lead {
        font-size: clamp(1rem, 2.5vw, 1.25rem);
    }

    .hero-section .btn {
        padding: 0.5rem 1.5rem;
        font-size: clamp(0.875rem, 2vw, 1rem);
    }

    .footer {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .footer-logo {
        font-size: clamp(1.25rem, 3vw, 1.5rem);
    }

    .footer-nav-title {
        font-size: clamp(1rem, 2.5vw, 1.125rem);
    }

    .footer-copy {
        font-size: clamp(0.625rem, 1.5vw, 0.75rem);
    }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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