/* 
==========================================
Domain - Financial Audit Company Website
Responsive CSS with unique color palette
==========================================
*/

/* CSS Variables for Color Palette */
:root {
    --bright-blue: #2962FF;
    --light-yellow: #FFF176;
    --charcoal-black: #212121;
    --white: #FFFFFF;
    --lavender: #B39DDB;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--bright-blue) 0%, var(--lavender) 100%);
    --gradient-secondary: linear-gradient(45deg, var(--light-yellow) 0%, #FFEB3B 100%);
    --gradient-accent: linear-gradient(90deg, var(--lavender) 0%, var(--bright-blue) 100%);
    
    /* Typography */
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-heading: 'Georgia', serif;
    
    /* Spacing */
    --container-max-width: 1200px;
    --section-padding: 80px 0;
    --border-radius: 12px;
    --shadow: 0 10px 30px rgba(41, 98, 255, 0.1);
}

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

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

html {
    scroll-behavior: smooth;
}

/* Container */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: bold;
    margin-bottom: 1rem;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--charcoal-black);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    color: var(--bright-blue);
}

p {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 15px 30px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(41, 98, 255, 0.2);
}

.btn-secondary {
    background: var(--gradient-secondary);
    color: var(--charcoal-black);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(255, 235, 59, 0.3);
}

/* Header Styles */
header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 2rem;
    font-weight: bold;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--charcoal-black);
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: var(--bright-blue);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    background: none;
    border: none;
    padding: 10px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--charcoal-black);
    margin: 3px 0;
    transition: all 0.3s ease;
    transform-origin: center;
}

/* Hamburger animation when menu is open */
.mobile-menu-toggle:checked + .nav-menu + .menu-toggle span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
    background: var(--bright-blue);
}

.mobile-menu-toggle:checked + .nav-menu + .menu-toggle span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle:checked + .nav-menu + .menu-toggle span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
    background: var(--bright-blue);
}

/* Menu toggle hover effect */
.menu-toggle:hover span {
    background: var(--bright-blue);
}

/* Hardware acceleration for better performance */
.nav-menu,
.menu-toggle span,
.faq-answer,
.faq-icon {
    will-change: transform;
    backface-visibility: hidden;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--light-yellow) 0%, var(--white) 50%, var(--lavender) 100%);
    padding: 120px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(41, 98, 255, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

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

.hero h1 {
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero .btn {
    animation: fadeInUp 1s ease-out 0.4s both;
}

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

/* Section Styles */
section {
    padding: var(--section-padding);
}

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

.section-subtitle {
    text-align: center;
    color: #666;
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 3rem;
}

/* About Section */
.about {
    background: linear-gradient(45deg, var(--white) 50%, var(--light-yellow) 100%);
}

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

.about-text {
    font-size: 1.2rem;
    line-height: 1.8;
}

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

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
}

/* Services Section */
.services {
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.service-card {
    background: linear-gradient(135deg, var(--white) 0%, #f8f9ff 100%);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--bright-blue);
    box-shadow: 0 20px 40px rgba(41, 98, 255, 0.15);
}

.service-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.service-content {
    padding: 2rem;
    text-align: center;
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-accent);
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
}

/* Benefits Section */
.benefits {
    background: linear-gradient(135deg, var(--lavender) 0%, var(--white) 100%);
}

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

.benefit-item {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.benefit-item:hover {
    transform: scale(1.05);
}

.benefit-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--bright-blue);
}

/* Testimonials Section */
.testimonials {
    background: var(--white);
}

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

.testimonial-card {
    background: linear-gradient(135deg, #f8f9ff 0%, var(--light-yellow) 100%);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 20px;
    font-size: 4rem;
    color: var(--bright-blue);
    font-family: Georgia, serif;
}

.testimonial-text {
    margin-bottom: 1.5rem;
    font-style: italic;
    font-size: 1.1rem;
}

.testimonial-author {
    font-weight: bold;
    color: var(--bright-blue);
}

/* FAQ Section */
.faq {
    background: linear-gradient(45deg, var(--white) 0%, #f0f4ff 100%);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    margin-bottom: 1rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

/* FAQ Pure CSS Implementation */
.faq-toggle {
    display: none;
}

.faq-question {
    padding: 1.5rem;
    background: var(--gradient-secondary);
    cursor: pointer;
    font-weight: bold;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
    border: none;
    width: 100%;
    text-align: left;
    color: var(--charcoal-black);
}

.faq-question:hover {
    background: linear-gradient(45deg, #FFEB3B 0%, var(--light-yellow) 100%);
}

.faq-icon {
    font-size: 1.5rem;
    font-weight: bold;
    transition: transform 0.3s ease;
}

.faq-toggle:checked + .faq-question .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    border-top: 1px solid #eee;
    background: var(--white);
    transition: all 0.4s ease;
    opacity: 0;
}

.faq-toggle:checked + .faq-question + .faq-answer {
    max-height: 300px;
    padding: 1.5rem;
    opacity: 1;
}

/* FAQ hover effects */
.faq-question:hover .faq-icon {
    transform: scale(1.1);
    color: var(--bright-blue);
}

/* FAQ accessibility - keyboard navigation */
.faq-toggle:focus + .faq-question {
    outline: 2px solid var(--bright-blue);
    outline-offset: 2px;
}

/* Smooth scrolling for anchor links - CSS only approach */
html {
    scroll-behavior: smooth;
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    .nav-menu,
    .faq-answer,
    .menu-toggle span,
    .faq-icon {
        transition: none !important;
        animation: none !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Contact Form Section */
.contact-form {
    background: linear-gradient(135deg, var(--bright-blue) 0%, var(--lavender) 100%);
    color: var(--white);
}

.form-container {
    max-width: 600px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 2rem;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--white);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 15px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--border-radius);
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.form-group select {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
}

.form-group select option {
    background: var(--charcoal-black);
    color: var(--white);
    padding: 10px;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--light-yellow);
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 20px rgba(255, 241, 118, 0.3);
    color: var(--white);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 1rem;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin: 0;
}

.checkbox-group label {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.4;
}

.checkbox-group a {
    color: var(--light-yellow);
    text-decoration: underline;
}

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

.form-submit .btn {
    background: var(--gradient-secondary);
    color: var(--charcoal-black);
    font-weight: bold;
    padding: 18px 40px;
    font-size: 1.2rem;
}

/* Footer */
footer {
    background: var(--charcoal-black);
    color: var(--white);
    padding: 3rem 0 1rem;
}

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

.footer-section h3 {
    color: var(--light-yellow);
    margin-bottom: 1rem;
}

.footer-section a {
    color: var(--white);
    text-decoration: none;
    display: block;
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--light-yellow);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #333;
    color: #999;
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--charcoal-black);
    color: var(--white);
    padding: 1.5rem;
    z-index: 1001;
    transform: translateY(100%);
    transition: transform 0.5s ease, opacity 0.5s ease;
    opacity: 0;
}

.cookie-banner.show {
    transform: translateY(0);
    opacity: 1;
}

.cookie-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--container-max-width);
    margin: 0 auto;
    gap: 2rem;
}

.cookie-text {
    flex: 1;
}

.cookie-actions {
    display: flex;
    gap: 1rem;
}

.cookie-actions .btn {
    padding: 10px 20px;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 1rem;
        box-shadow: var(--shadow);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: 999;
    }
    
    .mobile-menu-toggle:checked + .nav-menu {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    /* Close menu on link click - helps with UX */
    .nav-menu a:focus {
        outline: 2px solid var(--bright-blue);
        outline-offset: 2px;
    }
    
    .menu-toggle {
        display: flex;
        z-index: 1000;
    }
    
    .nav-menu a {
        padding: 1rem 0;
        border-bottom: 1px solid #eee;
        text-align: center;
        font-size: 1.1rem;
    }
    
    .nav-menu a:last-child {
        border-bottom: none;
    }
    
    /* FAQ responsive adjustments */
    .faq-answer {
        max-height: 0;
    }
    
    .faq-toggle:checked + .faq-question + .faq-answer {
        max-height: 400px;
    }
    
    .faq-question {
        padding: 1rem;
        font-size: 0.95rem;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .service-image {
        height: 180px;
    }
    
    .service-content {
        padding: 1.5rem;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
    
    .cookie-actions {
        justify-content: center;
    }
    
    :root {
        --section-padding: 60px 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .form-container {
        padding: 2rem;
    }
    
    .service-card,
    .benefit-item,
    .testimonial-card {
        padding: 1.5rem;
    }
    
    .service-image {
        height: 150px;
    }
    
    .service-content {
        padding: 1rem;
    }
    
    /* FAQ mobile optimization */
    .faq-toggle:checked + .faq-question + .faq-answer {
        max-height: 500px;
    }
    
    .faq-question {
        padding: 0.8rem;
        font-size: 0.9rem;
    }
    
    .faq-answer {
        font-size: 0.9rem;
        line-height: 1.5;
    }
    
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Print Styles */
@media print {
    .cookie-banner,
    header,
    .menu-toggle {
        display: none !important;
    }
    
    body {
        color: black !important;
        background: white !important;
    }
    
    .btn {
        border: 2px solid black !important;
    }
}