/* Design System - CSS Variables */
:root {
    --primary: #0078D7;
    --primary-dark: #005A9E;
    --foreground: #222222;
    --background: #FFFFFF;
    --secondary-bg: #F5F7FA;
    --muted: #6B7280;
    --border: #E5E7EB;
    --card-bg: #FFFFFF;
    
    --gradient-start: #0078D7;
    --gradient-end: #005A9E;
    
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--foreground);
    background-color: var(--background);
    line-height: 1.6;
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    margin-bottom: 1.5rem;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: 0.75rem;
}

/* Utility Classes */
.container-custom {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 640px) {
    .container-custom {
        padding: 0 1.5rem;
    }
}

@media (min-width: 1024px) {
    .container-custom {
        padding: 0 2rem;
    }
}

.text-primary {
    color: var(--primary);
}

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

.section {
    padding: 4rem 0;
}

@media (min-width: 768px) {
    .section {
        padding: 6rem 0;
    }
}

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

@media (min-width: 768px) {
    .section-header {
        margin-bottom: 4rem;
    }
}

.section-header p {
    font-size: 1.125rem;
    color: var(--muted);
    max-width: 48rem;
    margin: 0 auto;
}

.divider {
    width: 6rem;
    height: 4px;
    background: var(--primary);
    margin: 1.5rem auto;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.animate-fade-in {
    animation: fadeIn 0.6s ease-out forwards;
}

.animate-slide-up {
    animation: slideUp 0.6s ease-out forwards;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 0.375rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-family: var(--font-family);
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 120, 215, 0.3);
}

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

.btn-outline:hover {
    background: var(--secondary-bg);
    border-color: var(--primary);
    color: var(--primary);
}

.btn-lg {
    padding: 0.875rem 2rem;
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
}

.btn svg {
    width: 20px;
    height: 20px;
}

/* Navigation */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: var(--transition);
}

#navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 5rem;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
}

@media (min-width: 768px) {
    .logo {
        font-size: 1.5rem;
    }
}

.logo-primary {
    color: var(--primary);
}

.nav-links {
    display: none;
    align-items: center;
    gap: 2rem;
}

@media (min-width: 768px) {
    .nav-links {
        display: flex;
    }
}

.nav-links a {
    font-weight: 500;
    transition: var(--transition);
    color: rgba(34, 34, 34, 0.8);
}

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

.mobile-menu-btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
}

@media (min-width: 768px) {
    .mobile-menu-btn {
        display: none;
    }
}

.hamburger {
    position: relative;
    width: 24px;
    height: 2px;
    background: var(--foreground);
    transition: var(--transition);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--foreground);
    transition: var(--transition);
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    bottom: -8px;
}

.mobile-menu-btn.active .hamburger {
    background: transparent;
}

.mobile-menu-btn.active .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.mobile-menu-btn.active .hamburger::after {
    bottom: 0;
    transform: rotate(-45deg);
}

.mobile-menu {
    display: none;
    padding: 1rem 0;
    background: var(--background);
    border-top: 1px solid var(--border);
}

@media (min-width: 768px) {
    .mobile-menu {
        display: none !important;
    }
}

.mobile-menu.active {
    display: block;
}

.mobile-link {
    display: block;
    padding: 0.75rem 0;
    color: rgba(34, 34, 34, 0.8);
    transition: var(--transition);
}

.mobile-link:hover {
    color: var(--primary);
}

.mobile-btn {
    margin-top: 1rem;
    width: 100%;
}

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

.hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('../src/assets/hero-bg.jpg');
    background-size: cover;
    background-position: center;
}

.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.6));
}

.hero-content {
    position: relative;
    z-index: 10;
    padding: 8rem 1rem 4rem;
}

.hero-text {
    max-width: 48rem;
}

.hero-text h2 {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: rgba(34, 34, 34, 0.9);
}

.hero-text p {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
    color: var(--muted);
    margin-bottom: 2rem;
    max-width: 42rem;
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

@media (min-width: 640px) {
    .hero-buttons {
        flex-direction: row;
    }
}

.icon-arrow,
.icon-phone {
    margin-left: 0.5rem;
    transition: var(--transition);
}

.btn:hover .icon-arrow {
    transform: translateX(4px);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-mouse {
    width: 24px;
    height: 40px;
    border: 2px solid var(--primary);
    border-radius: 20px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 0.5rem;
}

.scroll-mouse::before {
    content: '';
    width: 4px;
    height: 12px;
    background: var(--primary);
    border-radius: 2px;
}

/* Tabs */
.tabs {
    width: 100%;
}

.tab-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    max-width: 48rem;
    margin: 0 auto 3rem;
    background: var(--secondary-bg);
    border-radius: 0.5rem;
    padding: 0.25rem;
}

.tab-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    background: transparent;
    border: none;
    font-family: var(--font-family);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border-radius: 0.375rem;
    color: var(--foreground);
}

.tab-btn:hover {
    background: rgba(0, 120, 215, 0.1);
}

.tab-btn.active {
    background: white;
    color: var(--primary);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.tab-text {
    display: none;
}

@media (min-width: 640px) {
    .tab-text {
        display: inline;
    }
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.4s ease-out;
}

.tab-card {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    background: var(--card-bg);
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
}

@media (min-width: 768px) {
    .tab-card {
        grid-template-columns: 1fr 1fr;
    }
}

.tab-card img {
    width: 100%;
    height: 16rem;
    object-fit: cover;
}

@media (min-width: 768px) {
    .tab-card img {
        height: 100%;
    }
}

.tab-card-content {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

@media (min-width: 768px) {
    .tab-card-content {
        padding: 3rem;
    }
}

.tab-card-content h3 {
    color: var(--primary);
    margin-bottom: 1rem;
}

.tab-card-content p {
    color: rgba(34, 34, 34, 0.8);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.tab-card-content blockquote {
    font-style: italic;
    text-align: center;
    color: var(--muted);
    border-left: 4px solid var(--primary);
    padding-left: 1rem;
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.service-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 0.5rem;
    border: 2px solid transparent;
    transition: var(--transition);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.service-card:hover {
    border-color: rgba(0, 120, 215, 0.5);
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.service-icon {
    width: 4rem;
    height: 4rem;
    background: rgba(0, 120, 215, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--primary);
    transform: scale(1.1);
}

.service-icon svg {
    color: var(--primary);
    transition: var(--transition);
}

.service-card:hover .service-icon svg {
    color: white;
}

.service-card h3 {
    margin-bottom: 1rem;
}

.service-card ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.service-card li {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    color: rgba(34, 34, 34, 0.8);
}

.service-card li::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
    margin-top: 0.5rem;
    flex-shrink: 0;
}

/* Industries Grid */
.industries-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .industries-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.industry-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 0.5rem;
    text-align: center;
    border: 2px solid transparent;
    transition: var(--transition);
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.industry-card:hover {
    border-color: rgba(0, 120, 215, 0.5);
    transform: translateY(-8px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.industry-icon {
    width: 4rem;
    height: 4rem;
    background: rgba(0, 120, 215, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    transition: var(--transition);
}

.industry-card:hover .industry-icon {
    background: var(--primary);
    transform: scale(1.1);
}

.industry-icon svg {
    color: var(--primary);
    transition: var(--transition);
}

.industry-card:hover .industry-icon svg {
    color: white;
}

.industry-card h3 {
    font-size: 0.875rem;
    font-weight: 600;
}

@media (min-width: 768px) {
    .industry-card h3 {
        font-size: 1rem;
    }
}

/* Why Choose Us Grid */
.why-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .why-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .why-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.why-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 0.5rem;
    border: 2px solid transparent;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    transition: var(--transition);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.why-card:hover {
    border-color: rgba(0, 120, 215, 0.5);
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.check-icon {
    width: 24px;
    height: 24px;
    background: rgba(0, 120, 215, 0.1);
    border-radius: 50%;
    padding: 4px;
    flex-shrink: 0;
    color: var(--primary);
}

.why-card p {
    font-weight: 500;
    color: rgba(34, 34, 34, 0.9);
    line-height: 1.5;
}

/* Process Grid */
.process-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    position: relative;
}

@media (min-width: 768px) {
    .process-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.process-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 0.5rem;
    text-align: center;
    position: relative;
    transition: var(--transition);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.process-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.process-number {
    position: absolute;
    top: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 2.5rem;
    height: 2.5rem;
    background: var(--background);
    border: 4px solid rgba(0, 120, 215, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--primary);
    z-index: 0;
}

.process-icon {
    width: 4rem;
    height: 4rem;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    position: relative;
    z-index: 10;
    box-shadow: 0 4px 12px rgba(0, 120, 215, 0.3);
}

.process-icon svg {
    color: white;
}

.process-card h3 {
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
}

.process-card p {
    color: var(--muted);
}

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

.benefits-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .benefits-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.benefit-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 2rem;
    border-radius: 0.5rem;
    text-align: center;
    transition: var(--transition);
}

.benefit-card:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-8px);
}

.benefit-icon {
    width: 4rem;
    height: 4rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.benefit-icon svg {
    color: white;
}

.benefit-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: white;
}

.benefit-card p {
    color: rgba(255, 255, 255, 0.8);
}

/* Quality Assurance */
.quality-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 0.5rem;
    max-width: 64rem;
    margin: 0 auto;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
}

@media (min-width: 768px) {
    .quality-card {
        padding: 3rem;
    }
}

.quality-content {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.quality-icon-large {
    width: 4rem;
    height: 4rem;
    background: rgba(0, 120, 215, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.quality-icon-large svg {
    color: var(--primary);
}

.quality-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.quality-content p {
    font-size: 1.125rem;
    color: rgba(34, 34, 34, 0.8);
    line-height: 1.7;
}

.quality-badges {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
}

@media (min-width: 768px) {
    .quality-badges {
        grid-template-columns: repeat(2, 1fr);
    }
}

.quality-badge {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--secondary-bg);
    border-radius: 0.5rem;
}

.quality-badge svg {
    color: var(--primary);
    flex-shrink: 0;
}

.quality-badge h4 {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.quality-badge p {
    font-size: 0.875rem;
    color: var(--muted);
}

.quality-quote {
    margin-top: 2rem;
    padding: 1.5rem;
    background: rgba(0, 120, 215, 0.05);
    border-left: 4px solid var(--primary);
    border-radius: 0.375rem;
    text-align: center;
    font-style: italic;
    color: rgba(34, 34, 34, 0.8);
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    max-width: 80rem;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.contact-info-card,
.contact-cta-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
}

.contact-info-card h3,
.contact-cta-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-icon {
    width: 3rem;
    height: 3rem;
    background: rgba(0, 120, 215, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    color: var(--primary);
}

.contact-item h4 {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.contact-item p {
    color: var(--muted);
    line-height: 1.6;
}

.contact-item a {
    color: var(--primary);
    transition: var(--transition);
}

.contact-item a:hover {
    text-decoration: underline;
}

.gstin {
    font-size: 0.875rem;
    color: var(--muted);
    margin-top: 1rem;
}

.contact-cta-card p {
    color: var(--muted);
    margin-bottom: 1.5rem;
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

/* Footer */
footer {
    background: rgba(34, 34, 34, 0.95);
    color: var(--background);
    padding: 2rem 0;
    text-align: center;
}

footer p {
    font-size: 0.875rem;
}

@media (min-width: 768px) {
    footer p {
        font-size: 1rem;
    }
}

.footer-sub {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 0.5rem;
}

/* Scroll Animations */
.fade-in-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}