/* ---
TABLE OF CONTENTS
1.  Global Styles & Variables
2.  Keyframe Animations
3.  Utility & Helper Classes
4.  Header & Navigation
5.  Footer
6.  Hero Section
7.  Services Section (Tabs)
8.  Why Choose Us Section
9.  ROI Calculator Section
10. Testimonials Section
11. Final CTA Section
12. Contact Page Styles
13. Legal Pages Styles
14. Back to Top Button
15. Responsive Design (Media Queries)
--- */


/* 1. GLOBAL STYLES & VARIABLES
-------------------------------------------------- */
:root {
    --color-primary: #ff6b35;
    --color-secondary: #f8f9fa;
    --color-accent: #ff8e53;
    --color-text-dark: #212529;
    --color-text-light: #6c757d;
    --color-white: #ffffff;
    --color-border: #e0e0e0;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 6px 16px rgba(0, 0, 0, 0.1);
    --font-primary: 'Nunito', sans-serif;
    --font-secondary: 'Open Sans', sans-serif;
    --transition-speed: 0.25s ease-in-out;
    --container-width: 1140px;
    --border-radius: 10px;
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-primary);
    background-color: var(--color-white);
    color: var(--color-text-light);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1rem;
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-secondary);
    font-weight: 700;
    line-height: 1.3;
    color: var(--color-text-dark);
    margin-bottom: 0.5rem;
}

h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2.25rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.1rem;
}

p {
    margin-bottom: 1rem;
}

p:last-child {
    margin-bottom: 0;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-speed) ease;
}

a:hover {
    color: var(--color-accent);
}

ul {
    list-style: none;
}

section {
    padding: 5rem 0;
}

/* 2. KEYFRAME ANIMATIONS
-------------------------------------------------- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 3. UTILITY & HELPER CLASSES
-------------------------------------------------- */
.cta-button {
    display: inline-block;
    padding: 0.75rem 1.75rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    font-family: var(--font-primary);
    text-align: center;
    transition: all var(--transition-speed) ease;
    border: 2px solid transparent;
    cursor: pointer;
}

.cta-button.primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.cta-button.primary:hover {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.cta-button.secondary {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.cta-button.secondary:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.cta-button.large {
    padding: 0.9rem 2.25rem;
    font-size: 1.1rem;
}

.cta-button.full-width {
    width: 100%;
    padding: 1rem;
}

.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.section-tag {
    color: var(--color-primary);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.section-intro {
    max-width: 650px;
    margin: 0 auto;
    font-size: 1.1rem;
}

.animate-on-scroll {
    opacity: 0;
    transition: opacity 0.7s ease-out, transform 0.7s ease-out;
    transition-delay: var(--delay, 0s);
}

.animate-on-scroll.fade-in-up {
    transform: translateY(20px);
}

.animate-on-scroll.slide-in-left {
    transform: translateX(-30px);
}

.animate-on-scroll.slide-in-right {
    transform: translateX(30px);
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translate(0, 0);
}

/* 4. HEADER & NAVIGATION
-------------------------------------------------- */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.2rem 0;
    background-color: var(--color-white);
    transition: padding var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.main-header.scrolled {
    padding: 0.8rem 0;
    box-shadow: var(--shadow-md);
}

.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-logo {
    display: flex;
    align-items: center;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--color-text-dark);
}

.header-logo img {
    height: 40px;
    margin-right: 10px;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-link {
    color: var(--color-text-dark);
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.hamburger-menu {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.hamburger-menu span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--color-text-dark);
    margin: 5px 0;
    border-radius: 3px;
    transition: all var(--transition-speed) ease;
}

/* 5. FOOTER
-------------------------------------------------- */
.main-footer {
    background-color: var(--color-text-dark);
    color: var(--color-secondary);
    padding: 4rem 0 2rem;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    font-size: 1.5rem;
    color: var(--color-white);
    font-weight: 700;
}

.footer-logo img {
    height: 40px;
    margin-right: 10px;
}

.footer-about-text {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

.footer-heading {
    color: var(--color-white);
    margin-bottom: 1.25rem;
    font-size: 1.1rem;
}

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

.footer-column a,
.footer-column p {
    color: var(--color-text-light);
    transition: color var(--transition-speed) ease;
    font-size: 0.95rem;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #2c3e5e;
    color: var(--color-text-light);
    font-size: 0.9rem;
}

/* 6. HERO SECTION
-------------------------------------------------- */
.hero-section {
    background-color: var(--color-secondary);
    padding-top: 120px;
    padding-bottom: 80px;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-tagline {
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 1rem;
    display: block;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    max-width: 500px;
}

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

.hero-image-wrapper {
    position: relative;
    height: 100%;
}

.hero-image {
    width: 100%;
    height: 450px;
    background: url('https://images.unsplash.com/photo-1543286386-713bdd548da4?q=80&w=2670&auto=format&fit=crop') no-repeat center center;
    background-size: cover;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}

/* 7. SERVICES SECTION (TABS)
-------------------------------------------------- */
.service-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.tab-link {
    padding: 0.8rem 1.5rem;
    border: 1px solid var(--color-border);
    background: var(--color-white);
    color: var(--color-text-light);
    border-radius: 50px;
    cursor: pointer;
    font-weight: 500;
    transition: all var(--transition-speed) ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.tab-link svg {
    fill: currentColor;
    width: 20px;
    height: 20px;
}

.tab-link.active,
.tab-link:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.tab-content-wrapper {
    background-color: var(--color-secondary);
    border-radius: var(--border-radius);
    padding: 3rem;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeInUp 0.5s ease;
}

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

.tab-content ul {
    list-style: '✓';
    padding-left: 1.5rem;
}

.tab-content li {
    padding-left: 0.5rem;
    margin-bottom: 0.5rem;
}

/* 8. WHY CHOOSE US SECTION
-------------------------------------------------- */
.why-us-section {
    background-color: var(--color-secondary);
}

.why-us-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.why-us-card {
    text-align: center;
    padding: 2rem;
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.why-us-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
}

.why-us-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.why-us-icon svg {
    width: 30px;
    height: 30px;
    fill: currentColor;
}

.why-us-card h3 {
    margin-bottom: 0.5rem;
}

/* 9. ROI CALCULATOR SECTION
-------------------------------------------------- */
.roi-calculator-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 3rem;
    align-items: center;
}

.roi-info h2 {
    font-size: 2rem;
}

#roi-calculator .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

#roi-calculator .form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--color-text-dark);
}

#roi-calculator .form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 1rem;
    color: var(--color-text-dark);
}

#roi-calculator .form-group input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 82, 204, 0.2);
}

.roi-results {
    margin-top: 2rem;
    padding: 1.5rem;
    background-color: var(--color-secondary);
    border-radius: var(--border-radius);
    text-align: center;
}

.roi-results h4 {
    margin-bottom: 1rem;
}

.result-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.result-grid div {
    font-size: 0.9rem;
    color: var(--color-text-light);
}

.result-grid span {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary);
}

/* 10. TESTIMONIALS SECTION
-------------------------------------------------- */
.testimonials-section {
    background-color: var(--color-secondary);
}

.testimonial-slider-wrapper {
    position: relative;
}

.testimonial-slider {
    display: flex;
    overflow: hidden;
}

.testimonial-card {
    flex: 0 0 100%;
    padding: 2rem;
    background-color: var(--color-white);
    border-radius: var(--border-radius);
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    transition: opacity 0.5s ease;
}

.testimonial-quote {
    font-size: 1.25rem;
    font-style: italic;
    margin-bottom: 2rem;
    color: var(--color-text-dark);
}

.testimonial-author {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
}

.author-info strong {
    display: block;
    color: var(--color-text-dark);
}

.slider-nav {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.slider-nav button {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    background-color: var(--color-white);
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--color-primary);
    transition: all var(--transition-speed) ease;
}

.slider-nav button:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

/* 11. FINAL CTA SECTION
-------------------------------------------------- */
.final-cta-section {
    background-color: var(--color-primary);
    color: var(--color-white);
    text-align: center;
}

.final-cta-section h2 {
    color: var(--color-white);
}

.final-cta-section p {
    max-width: 600px;
    margin: 0 auto 2rem;
    opacity: 0.9;
}

.final-cta-section .cta-button.primary {
    background-color: var(--color-white);
    color: var(--color-primary);
    border-color: var(--color-white);
}

.final-cta-section .cta-button.primary:hover {
    background-color: transparent;
    color: var(--color-white);
}

/* 12. CONTACT PAGE STYLES
-------------------------------------------------- */
.page-hero {
    padding: 120px 0 60px;
    text-align: center;
    background-color: var(--color-secondary);
}

.page-title {
    font-size: 2.75rem;
}

.page-subtitle {
    max-width: 600px;
    margin: 0.5rem auto 0;
    font-size: 1.1rem;
}

.contact-section {
    padding-bottom: 6rem;
}

.contact-page-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 3rem;
}

.contact-form-wrapper {
    background: var(--color-white);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}

.contact-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.contact-form .form-group {
    margin-bottom: 1.5rem;
}

.contact-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--color-text-dark);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-family: var(--font-primary);
    font-size: 1rem;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

.contact-info-panel {
    padding-top: 1rem;
}

.contact-info-panel h3 {
    margin-bottom: 1rem;
}

.contact-details {
    list-style: none;
    margin-top: 2rem;
}

.contact-details li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.contact-details svg {
    width: 24px;
    height: 24px;
    fill: var(--color-primary);
    flex-shrink: 0;
}

/* 13. LEGAL PAGES STYLES
-------------------------------------------------- */
.legal-content {
    padding-bottom: 6rem;
}

.legal-content .container {
    max-width: 800px;
    background-color: var(--color-white);
    padding: 3rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}

.legal-content h2 {
    font-size: 1.5rem;
    margin: 2rem 0 1rem;
    color: var(--color-primary);
}

.legal-content ul {
    list-style: disc;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.legal-content li {
    margin-bottom: 0.5rem;
}

/* 14. BACK TO TOP BUTTON
-------------------------------------------------- */
.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-speed) ease;
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--color-accent);
    transform: translateY(-3px);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}


/* 15. RESPONSIVE DESIGN (MEDIA QUERIES)
-------------------------------------------------- */
@media (max-width: 992px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .hero-title {
        font-size: 2.8rem;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

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

    .hero-image-wrapper {
        display: none;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .footer-column.about {
        grid-column: 1 / -1;
    }

    .roi-calculator-wrapper,
    .contact-page-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 15px;
    }

    section {
        padding: 4rem 0;
    }

    .header-cta {
        display: none;
    }

    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: var(--color-white);
        flex-direction: column;
        justify-content: center;
        transition: right var(--transition-speed) ease;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
    }

    .main-nav.active {
        right: 0;
    }

    .nav-links {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }

    .nav-link {
        font-size: 1.2rem;
    }

    .hamburger-menu {
        display: block;
    }

    .hamburger-menu.active .bar1 {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .hamburger-menu.active .bar2 {
        opacity: 0;
    }

    .hamburger-menu.active .bar3 {
        transform: rotate(45deg) translate(-5px, -6px);
    }

    .service-tabs {
        flex-direction: column;
    }

    .tab-content-wrapper {
        padding: 2rem;
    }

    #roi-calculator .form-row {
        grid-template-columns: 1fr;
    }

    .result-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
}