/* ===================================
   AYUSHREE TAX CONSULTANCY
   Premium Corporate Design System
   =================================== */

/* CSS Variables */
:root {
    /* Colors - Corporate Palette */
    --primary-blue: #1e3a5f;
    --secondary-blue: #2c5282;
    --accent-gold: #d4af37;
    --charcoal: #2d3748;
    --light-gray: #f7fafc;
    --medium-gray: #e2e8f0;
    --dark-gray: #4a5568;
    --white: #ffffff;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    
    /* Typography */
    --font-serif: 'Playfair Display', serif;
    --font-sans: 'Inter', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Transitions */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: var(--transition-smooth);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.logo-image {
    height: 50px;
    width: auto;
    object-fit: contain;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--accent-gold);
    border-radius: 8px;
    font-size: 1.75rem;
    font-weight: 700;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition-smooth);
    position: relative;
}

.nav-links a:not(.cta-btn):hover {
    color: var(--primary-blue);
}

.nav-links a:not(.cta-btn)::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gold);
    transition: var(--transition-smooth);
}

.nav-links a:not(.cta-btn):hover::after {
    width: 100%;
}

.cta-btn {
    background: var(--primary-blue);
    color: var(--white) !important;
    padding: 0.65rem 1.5rem;
    border-radius: 6px;
    transition: var(--transition-smooth);
}

.cta-btn:hover {
    background: var(--secondary-blue);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(30, 58, 95, 0.3);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-blue);
    border-radius: 2px;
    transition: var(--transition-smooth);
}

/* Hero Section with Video */
.hero-section {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-video-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(30, 58, 95, 0.85) 0%, rgba(44, 82, 130, 0.75) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--white);
    padding: var(--spacing-md);
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    font-weight: 300;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
    animation: fadeInUp 1s ease-out 0.2s backwards;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.4s backwards;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: var(--transition-smooth);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--accent-gold);
    color: var(--primary-blue);
}

.btn-primary:hover {
    background: #c49b2e;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(212, 175, 55, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

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

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
}

.scroll-indicator span {
    display: block;
    width: 24px;
    height: 40px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 20px;
    position: relative;
}

.scroll-indicator span::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 2px;
    animation: scrollDown 2s infinite;
}

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

@keyframes scrollDown {
    0%, 100% {
        transform: translate(-50%, 0);
        opacity: 1;
    }
    50% {
        transform: translate(-50%, 15px);
        opacity: 0;
    }
}

/* Trust Bar */
.trust-bar {
    background: var(--white);
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--medium-gray);
}

.trust-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    text-align: center;
}

.trust-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.trust-number {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.trust-label {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Section Styles */
section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    margin-bottom: var(--spacing-lg);
}

.section-header.centered {
    text-align: center;
}

.section-tag {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--accent-gold);
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--primary-blue);
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
}

.section-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

/* About Section */
.about-section {
    background: var(--light-gray);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-text .lead {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
}

.about-text p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    line-height: 1.8;
}

.about-values {
    display: grid;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.value-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.value-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.value-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 0.25rem;
}

.value-item p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin: 0;
}

.about-image {
    position: relative;
}

.image-placeholder {
    width: 100%;
    height: 500px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.image-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.service-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: 12px;
    border: 2px solid var(--medium-gray);
    transition: var(--transition-smooth);
    cursor: pointer;
}

.service-card:hover {
    border-color: var(--accent-gold);
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    color: var(--accent-gold);
    transition: var(--transition-smooth);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

.service-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

.service-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Why Us Section */
.why-us-section {
    background: var(--light-gray);
}

.why-us-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.why-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: 12px;
    position: relative;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.why-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: var(--accent-gold);
    transition: var(--transition-smooth);
}

.why-card:hover::before {
    height: 100%;
}

.why-card:hover {
    transform: translateX(8px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

.why-number {
    font-family: var(--font-serif);
    font-size: 3rem;
    font-weight: 700;
    color: var(--medium-gray);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.why-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

.why-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Clients Section */
.clients-section {
    background: var(--white);
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.client-type {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--light-gray);
    border-radius: 12px;
    transition: var(--transition-smooth);
}

.client-type:hover {
    background: var(--white);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    transform: translateY(-5px);
}

.client-icon {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
}

.client-type h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
}

.client-type p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    text-align: center;
    padding: var(--spacing-xl) 0;
}

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

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    background: var(--charcoal);
    color: var(--white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-serif);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.footer-logo .logo-image {
    height: 45px;
    width: auto;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.footer-col h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--accent-gold);
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 0.75rem;
}

.footer-col a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition-smooth);
}

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

.footer-col p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
}

.footer-disclaimer {
    background: rgba(0, 0, 0, 0.2);
    padding: var(--spacing-md);
    border-radius: 8px;
    margin-bottom: var(--spacing-md);
}

.footer-disclaimer p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-copyright {
    text-align: center;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
}

.footer-copyright a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition-smooth);
}

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

/* Responsive Design */
@media (max-width: 968px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background: var(--white);
        width: 100%;
        padding: var(--spacing-md);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        transition: var(--transition-smooth);
        gap: 1.5rem;
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        order: -1;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .why-us-grid {
        grid-template-columns: 1fr;
    }
    
    .clients-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
}

@media (max-width: 640px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }
    
    .trust-items {
        grid-template-columns: 1fr 1fr;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .logo-image {
        height: 40px;
    }
    
    .logo-text {
        font-size: 1.1rem;
    }
}

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

/* Print Styles */
@media print {
    .navbar,
    .hero-video-container,
    .scroll-indicator,
    .cta-section,
    .footer {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.5;
    }
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Focus Styles for Accessibility */
a:focus,
button:focus {
    outline: 3px solid var(--accent-gold);
    outline-offset: 2px;
}

/* Selection Styles */
::selection {
    background: var(--accent-gold);
    color: var(--primary-blue);
}

::-moz-selection {
    background: var(--accent-gold);
    color: var(--primary-blue);
}