/* TaxPreimer Modern Styles - OpenAI Inspired */

/* Root Variables */
:root {
    /* Primary Colors */
    --primary-color: #1e3a8a;        /* Deep Navy - Trust & Authority */
    --primary-hover: #1e40af;        /* Slightly lighter navy */
    --primary-light: #3b82f6;        /* Light blue for highlights */
    
    /* Secondary Colors */
    --secondary-color: #374151;       /* Charcoal - Sophistication */
    --secondary-light: #6b7280;       /* Medium gray */
    
    /* Accent Colors */
    --accent-color: #059669;          /* Forest Green - Success & Growth */
    --accent-hover: #047857;          /* Darker green */
    --accent-light: #10b981;          /* Light green for highlights */
    
    /* Neutral Colors */
    --bg-primary: #ffffff;            /* Pure white */
    --bg-secondary: #f8fafc;          /* Light gray background */
    --bg-tertiary: #f1f5f9;           /* Slightly darker gray */
    
    /* Text Colors */
    --text-primary: #111827;          /* Almost black - high contrast */
    --text-secondary: #374151;        /* Dark gray - readable */
    --text-muted: #6b7280;            /* Medium gray - subtle */
    --text-light: #9ca3af;            /* Light gray - disabled */
    
    /* Border & UI */
    --border-color: #e5e7eb;          /* Light gray borders */
    --border-light: #f3f4f6;          /* Very light borders */
    --border-dark: #d1d5db;           /* Darker borders */
    
    /* Status Colors */
    --success-color: #059669;         /* Green for success */
    --warning-color: #d97706;         /* Amber for warnings */
    --error-color: #dc2626;           /* Red for errors */
    --info-color: #2563eb;            /* Blue for info */
    
    /* Design System */
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --box-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --box-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    font-weight: 600;
    line-height: 1.25;
    color: var(--text-primary);
    letter-spacing: -0.025em;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
    text-align: center;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Navigation Styles */
.navbar {
    background-color: rgba(255, 255, 255, 0.8) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
    padding: 1rem 0;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary) !important;
}

.navbar-nav .nav-link {
    font-weight: 500;
    color: var(--text-secondary) !important;
    margin: 0 0.5rem;
    padding: 0.5rem 1rem !important;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.navbar-nav .nav-link:hover {
    color: var(--text-primary) !important;
    background-color: var(--bg-secondary);
}

.navbar-nav .btn {
    margin-left: 0.5rem;
    font-weight: 500;
    padding: 0.5rem 1.5rem;
    border-radius: var(--border-radius);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 6rem 0 4rem;
}

.hero-content h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    line-height: 1.1;
}

.hero-content .lead {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.hero-stats {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--box-shadow-lg);
    border: 1px solid var(--border-color);
    margin-bottom: 2rem;
}

.hero-stats h3 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.hero-stats p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0;
    font-weight: 500;
}

.hero-icon {
    font-size: 8rem;
    color: var(--primary-color);
    opacity: 0.1;
    position: relative;
    z-index: 2;
}

.hero-buttons .btn {
    padding: 0.875rem 2rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-size: 1rem;
    margin-right: 1rem;
    margin-bottom: 1rem;
}

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

.hero-buttons .btn-primary:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--box-shadow-lg);
}

.hero-buttons .btn-outline-secondary {
    border-color: var(--border-color);
    color: var(--text-primary);
}

.hero-buttons .btn-outline-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--text-secondary);
    color: var(--text-primary);
    transform: translateY(-1px);
}

/* About Section */
.feature-item {
    text-align: center;
    padding: 2rem 1rem;
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    height: 100%;
}

.feature-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--box-shadow-lg);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.5rem;
    color: white;
}

.feature-item h5 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.feature-item p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* Services Section */
.services-section {
    background: var(--bg-secondary);
}

.service-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    height: 100%;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--box-shadow-xl);
    border-color: var(--primary-color);
}

.service-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.5rem;
    color: white;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    transform: scale(1.05);
}

.service-card h5 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 600;
    font-size: 1.25rem;
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.service-features {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: left;
}

.service-features li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.5rem;
    font-size: 0.875rem;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 0.875rem;
}

/* Why Choose Us Section */
.why-choose-item {
    text-align: center;
    padding: 2rem 1rem;
    transition: var(--transition);
}

.why-choose-item:hover {
    transform: translateY(-4px);
}

.why-choose-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-hover));
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.5rem;
    color: white;
    transition: var(--transition);
}

.why-choose-item:hover .why-choose-icon {
    transform: scale(1.05);
}

.why-choose-item h5 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.why-choose-item p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* Testimonials Section */
.testimonials-section {
    background: var(--bg-secondary);
}

.testimonial-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--box-shadow);
    height: 100%;
    position: relative;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.testimonial-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--box-shadow-lg);
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 20px;
    font-size: 3rem;
    color: var(--primary-color);
    font-family: serif;
    line-height: 1;
    opacity: 0.3;
}

.stars {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.testimonial-card p {
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: 1.5rem;
}

.testimonial-author {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.testimonial-author strong {
    color: var(--text-primary);
    font-weight: 600;
}

.testimonial-author small {
    color: var(--text-muted);
}

/* Client Logos */
.client-logos {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--box-shadow);
    border: 1px solid var(--border-color);
    margin-top: 3rem;
}

.client-logos h5 {
    color: var(--text-primary);
    margin-bottom: 2rem;
    font-weight: 600;
}

.client-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 60px;
    opacity: 0.6;
    transition: var(--transition);
    padding: 1rem;
}

.client-logo:hover {
    opacity: 1;
    transform: scale(1.05);
}

.client-logo img {
    max-height: 40px;
    width: auto;
    filter: grayscale(100%);
    transition: var(--transition);
}

.client-logo:hover img {
    filter: grayscale(0%);
}

/* Contact Section */
.contact-form {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    box-shadow: var(--box-shadow);
    border: 1px solid var(--border-color);
}

.contact-form .form-control,
.contact-form .form-select {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.75rem 1rem;
    transition: var(--transition);
    background: var(--bg-primary);
}

.contact-form .form-control:focus,
.contact-form .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(16, 163, 127, 0.1);
    outline: none;
}

.contact-info {
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    height: 100%;
    border: 1px solid var(--border-color);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 2rem;
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    color: white;
    font-size: 1.125rem;
    flex-shrink: 0;
}

.contact-item h5 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.contact-item p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

.social-links {
    margin-top: 2rem;
}

.social-links h5 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.social-link {
    display: inline-block;
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: white;
    border-radius: var(--border-radius);
    text-align: center;
    line-height: 40px;
    margin-right: 0.5rem;
    transition: var(--transition);
    text-decoration: none;
}

.social-link:hover {
    background: var(--primary-hover);
    color: white;
    transform: translateY(-2px);
}

/* Footer */
footer {
    background: var(--text-primary) !important;
    border-top: 1px solid var(--border-color);
}

footer h5,
footer h6 {
    color: white;
    margin-bottom: 1rem;
    font-weight: 600;
}

footer a {
    color: #9ca3af;
    text-decoration: none;
    transition: var(--transition);
}

footer a:hover {
    color: white;
}

footer .input-group .btn {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

footer .input-group .btn:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: none;
    z-index: 1000;
    transition: var(--transition);
}

.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 3rem;
    }
    
    .hero-content .lead {
        font-size: 1.125rem;
    }
    
    .hero-stats {
        padding: 1.5rem;
    }
    
    .hero-stats h3 {
        font-size: 2rem;
    }
    
    .hero-icon {
        font-size: 6rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .service-card,
    .testimonial-card {
        margin-bottom: 2rem;
    }
    
    .contact-item {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-icon {
        margin: 0 auto 1rem;
    }
    
    .navbar {
        padding: 0.75rem 0;
    }
}

@media (max-width: 576px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-buttons .btn {
        display: block;
        width: 100%;
        margin-bottom: 1rem;
        margin-right: 0;
    }
    
    .hero-buttons .btn:last-child {
        margin-bottom: 0;
    }
    
    .contact-form {
        padding: 1.5rem;
    }
    
    .contact-info {
        padding: 1.5rem;
        margin-top: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .hero-stats h3 {
        font-size: 1.75rem;
    }
}

/* Utility Classes */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary-color), #1e3a8a);
}

.bg-gradient-accent {
    background: linear-gradient(135deg, var(--accent-color), #e56b00);
}

.shadow-lg-custom {
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Loading Animation */
.loading {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.loading.loaded {
    opacity: 1;
    transform: translateY(0);
}