/*
    styles.css
    Author: Roger Carter Properties Redesign
    Version: 1.0
    Description: Comprehensive stylesheet for the Roger Carter Properties digital marketing website.
    Features: Responsive Design, Custom Theme, Advanced Animations, Interactive Elements.
*/

/* TABLE OF CONTENTS
---------------------------
1.  Global Styles & Variables
2.  Typography
3.  Layout & Container
4.  Buttons & Forms
5.  Header & Navigation
6.  Footer
7.  Hero Section
8.  Services Section
9.  About Us / Why Choose Us Section
10. Industries Section (Tabs)
11. Testimonials Section (Slider)
12. Interactive Calculator Section
13. CTA Section
14. Page-Specific Styles (Contact, Legal)
15. Interactive Elements (Live Chat, Modals)
16. Animations & Keyframes
17. Utility Classes
18. Icon Font (Placeholder)
19. Media Queries (Responsiveness)
--------------------------- */

/* 1. GLOBAL STYLES & VARIABLES */
:root {
    --primary-color: #0A192F;
    /* Dark Navy Blue */
    --secondary-color: #1E3A5F;
    /* Lighter Navy */
    --accent-color: #64FFDA;
    /* Bright Cyan/Mint */
    --text-color-primary: #CCD6F6;
    /* Light Grey/Blue */
    --text-color-secondary: #8892B0;
    /* Medium Grey/Blue */
    --background-color: #0A192F;
    --card-background-color: #112240;
    --border-color: #233554;
    --font-family-primary: 'Poppins', sans-serif;
    --font-family-secondary: 'Roboto', sans-serif;
    --header-height: 80px;
    --transition-speed: 0.3s;
    --border-radius: 4px;
}

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

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

body {
    background-color: var(--background-color);
    color: var(--text-color-secondary);
    font-family: var(--font-family-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 2. TYPOGRAPHY */
h1,
h2,
h3,
h4 {
    color: var(--text-color-primary);
    font-family: var(--font-family-primary);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3.5rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.2rem;
}

p {
    margin-bottom: 1rem;
    font-family: var(--font-family-secondary);
}

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

a:hover,
a:focus {
    color: #fff;
}

ul {
    list-style: none;
}

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

.section-title h2 {
    position: relative;
    padding-bottom: 1rem;
    margin-bottom: 1rem;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--accent-color);
    border-radius: 2px;
}

.section-title.text-left h2::after {
    left: 0;
    transform: none;
}

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

/* 3. LAYOUT & CONTAINER */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

main {
    padding-top: var(--header-height);
}

section {
    padding: 6rem 0;
}

/* 4. BUTTONS & FORMS */
.btn {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    border-radius: var(--border-radius);
    font-family: var(--font-family-secondary);
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: transparent;
    color: var(--accent-color);
}

.btn-secondary {
    background-color: transparent;
    color: var(--accent-color);
    border-color: var(--accent-color);
}

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

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

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

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

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.8rem;
    background-color: var(--secondary-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-color-primary);
    font-family: var(--font-family-secondary);
    transition: border-color var(--transition-speed) ease;
}

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

/* 5. HEADER & NAVIGATION */
header.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: rgba(10, 25, 47, 0.85);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all var(--transition-speed) ease;
}

header.site-header.sticky {
    box-shadow: 0 2px 15px rgba(2, 12, 27, 0.7);
    height: 70px;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

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

.logo img {
    height: 50px;
    margin-right: 10px;
    filter: brightness(0) saturate(100%) invert(80%) sepia(35%) saturate(542%) hue-rotate(113deg) brightness(101%) contrast(101%);
    /* Make it the accent color */
}

.main-nav ul {
    display: flex;
    gap: 2rem;
}

.main-nav a {
    color: var(--text-color-secondary);
    font-weight: 500;
    position: relative;
    padding: 5px 0;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: width var(--transition-speed) ease;
}

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

.main-nav a.active,
.main-nav a:hover {
    color: var(--text-color-primary);
}

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 25px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    width: 30px;
    height: 3px;
    background-color: var(--accent-color);
    border-radius: 10px;
    transition: all var(--transition-speed) ease;
}

.mobile-nav {
    display: none;
}

/* 6. FOOTER */
footer.site-footer {
    background-color: var(--primary-color);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-col h4 {
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.footer-col p {
    font-size: 0.9rem;
}

.footer-col ul li {
    margin-bottom: 0.8rem;
}

.footer-col ul a {
    color: var(--text-color-secondary);
}

.footer-col ul a:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.social-links {
    margin-top: 1.5rem;
    display: flex;
    gap: 1rem;
}

.social-links a {
    font-size: 1.5rem;
    color: var(--text-color-secondary);
}

.social-links a:hover {
    color: var(--accent-color);
    transform: translateY(-3px);
}

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

.footer-contact p {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact p i {
    color: var(--accent-color);
}


/* 7. HERO SECTION */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
    padding: 0 2rem;
}

.hero-content {
    max-width: 800px;
    z-index: 2;
}

.hero h1 {
    font-size: 4.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 2.5rem;
    color: var(--text-color-primary);
}

.hero .btn {
    margin: 0.5rem;
}

.hero-3d-graphics {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    perspective: 1000px;
}

.cube-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.cube {
    width: 200px;
    height: 200px;
    position: relative;
    transform-style: preserve-3d;
    animation: rotate-cube 20s infinite linear;
}

.face {
    position: absolute;
    width: 200px;
    height: 200px;
    background: rgba(100, 255, 218, 0.1);
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    font-size: 1.5rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
}

.front {
    transform: rotateY(0deg) translateZ(100px);
}

.back {
    transform: rotateY(180deg) translateZ(100px);
}

.right {
    transform: rotateY(90deg) translateZ(100px);
}

.left {
    transform: rotateY(-90deg) translateZ(100px);
}

.top {
    transform: rotateX(90deg) translateZ(100px);
}

.bottom {
    transform: rotateX(-90deg) translateZ(100px);
}

.scroll-down-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 5;
}

.scroll-down-indicator a {
    display: block;
    width: 24px;
    height: 40px;
    border: 2px solid var(--accent-color);
    border-radius: 20px;
    position: relative;
}

.scroll-down-indicator span {
    position: absolute;
    top: 8px;
    left: 50%;
    width: 4px;
    height: 8px;
    background: var(--accent-color);
    border-radius: 2px;
    transform: translateX(-50%);
    animation: scroll-anim 2s infinite;
}

/* 8. SERVICES SECTION */
.services-section {
    background-color: var(--primary-color);
}

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

.service-card {
    background-color: var(--card-background-color);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all var(--transition-speed) ease;
    position: relative;
    top: 0;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-color);
    box-shadow: 0 10px 30px -15px rgba(2, 12, 27, 0.7);
}

.service-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--accent-color);
}

.service-icon svg {
    width: 32px;
    height: 32px;
    color: var(--accent-color);
}

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

.learn-more {
    margin-top: 1rem;
    display: inline-block;
    font-weight: 600;
}

/* 9. ABOUT US / WHY CHOOSE US SECTION */
.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image {
    position: relative;
}

.image-wrapper-3d {
    position: relative;
    perspective: 1500px;
}

.image-wrapper-3d img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    transition: transform 0.6s ease;
    transform: rotateY(0deg) rotateX(0deg);
}

.image-wrapper-3d:hover img {
    transform: rotateY(15deg) rotateX(5deg) scale(1.05);
    box-shadow: -20px 20px 40px rgba(2, 12, 27, 0.5);
}

.about-content p {
    margin-bottom: 2rem;
}

.stats-counter {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
    margin-bottom: 2rem;
}

.stat-item {
    text-align: center;
}

.stat-item h3 {
    font-size: 2.5rem;
    color: var(--accent-color);
}

.stat-item p {
    font-size: 1rem;
    margin: 0;
    color: var(--text-color-secondary);
}

/* 10. INDUSTRIES SECTION (TABS) */
.industries-section {
    background-color: var(--primary-color);
}

.industry-tabs-container {
    max-width: 900px;
    margin: 0 auto;
}

.industry-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.tab-link {
    background: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-color-secondary);
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    cursor: pointer;
    font-size: 1rem;
    transition: all var(--transition-speed) ease;
}

.tab-link:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

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

.tab-content {
    display: none;
    background-color: var(--card-background-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

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

.tab-content h3 {
    color: var(--accent-color);
}

.tab-content ul {
    list-style: none;
    padding-left: 0;
    margin-top: 1rem;
}

.tab-content ul li {
    padding-left: 1.5rem;
    position: relative;
    margin-bottom: 0.5rem;
}

.tab-content ul li::before {
    content: '✓';
    color: var(--accent-color);
    position: absolute;
    left: 0;
    font-weight: bold;
}


/* 11. TESTIMONIALS SECTION (SLIDER) */
.testimonial-slider-container {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.testimonial-slider {
    position: relative;
    overflow: hidden;
    min-height: 250px;
}

.testimonial-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s ease, transform 0.5s ease;
    transform: translateX(50px);
}

.testimonial-slide.active {
    opacity: 1;
    visibility: visible;
    position: relative;
    transform: translateX(0);
}

.quote {
    font-size: 1.2rem;
    font-style: italic;
    color: var(--text-color-primary);
    margin-bottom: 2rem;
    text-align: center;
}

.author {
    text-align: center;
}

.author h4 {
    margin: 0;
    color: var(--accent-color);
}

.author span {
    font-size: 0.9rem;
}

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

.slider-controls button {
    background-color: var(--secondary-color);
    border: 1px solid var(--border-color);
    color: var(--accent-color);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
}

.slider-controls button:hover {
    background-color: var(--accent-color);
    color: var(--primary-color);
}

/* 12. INTERACTIVE CALCULATOR SECTION */
.calculator-section {
    background-color: var(--primary-color);
}

.calculator-wrapper {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: center;
    max-width: 900px;
    margin: 0 auto;
    background-color: var(--card-background-color);
    padding: 3rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.calculator-results {
    text-align: center;
    border-left: 1px solid var(--border-color);
    padding-left: 3rem;
}

.calculator-results h4 {
    color: var(--text-color-secondary);
    font-weight: 500;
}

.calculator-results p {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color);
    margin: 0;
}

.calculator-results p:not(:last-child) {
    margin-bottom: 1.5rem;
}


/* 13. CTA SECTION */
.cta-section {
    background-color: var(--secondary-color);
}

.cta-section h2 {
    font-size: 2.8rem;
}

.cta-section p {
    max-width: 600px;
    margin: 0 auto 2rem;
    font-size: 1.1rem;
}

/* 14. PAGE-SPECIFIC STYLES (Contact, Legal) */
.page-header {
    background-color: var(--secondary-color);
    padding: 4rem 0;
    text-align: center;
}

.page-header h1 {
    font-size: 3rem;
    margin: 0;
}

.contact-section,
.legal-content {
    padding: 6rem 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
}

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

.form-group.full-width {
    grid-column: 1 / -1;
}

.contact-info-wrapper h3 {
    margin-bottom: 2rem;
}

.contact-info-item {
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
}

.contact-info-item h4 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 0.5rem;
    color: var(--accent-color);
}

.contact-info-item p {
    margin: 0;
    padding-left: 34px;
}

.legal-content .container {
    max-width: 800px;
}

.legal-content h2 {
    color: var(--accent-color);
    margin-top: 2.5rem;
    margin-bottom: 1rem;
}

.legal-content p,
.legal-content li {
    line-height: 1.8;
}

.legal-content ul {
    list-style: disc;
    padding-left: 2rem;
}

/* 15. INTERACTIVE ELEMENTS (Live Chat) */
.live-chat-widget {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 999;
}

.chat-icon {
    width: 60px;
    height: 60px;
    background-color: var(--accent-color);
    color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(100, 255, 218, 0.4);
    transition: transform var(--transition-speed) ease;
}

.chat-icon:hover {
    transform: scale(1.1);
}

.chat-icon svg {
    width: 32px;
    height: 32px;
}

.chat-window {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 350px;
    background-color: var(--card-background-color);
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    opacity: 0;
    transform: translateY(20px);
    visibility: hidden;
    transition: all var(--transition-speed) ease;
}

.chat-window.open {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
}

.chat-header {
    background-color: var(--secondary-color);
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-header h4 {
    margin: 0;
    color: var(--text-color-primary);
}

.chat-header #close-chat {
    background: none;
    border: none;
    color: var(--text-color-secondary);
    font-size: 1.5rem;
    cursor: pointer;
}

.chat-body {
    padding: 1rem;
    flex-grow: 1;
    overflow-y: auto;
    min-height: 300px;
}

.message {
    margin-bottom: 1rem;
    max-width: 80%;
}

.message p {
    padding: 0.8rem;
    border-radius: 15px;
    margin: 0;
}

.message.received {
    align-self: flex-start;
}

.message.received p {
    background-color: var(--secondary-color);
    border-bottom-left-radius: 2px;
}

.message.sent {
    margin-left: auto;
}

.message.sent p {
    background-color: var(--accent-color);
    color: var(--primary-color);
    border-bottom-right-radius: 2px;
}

.chat-footer {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 10px;
}

.chat-footer input {
    flex-grow: 1;
    border: 1px solid var(--border-color);
    background: var(--primary-color);
    padding: 0.5rem;
    border-radius: 50px;
    color: var(--text-color-primary);
}

.chat-footer button {
    background: var(--accent-color);
    border: none;
    color: var(--primary-color);
    padding: 0 1rem;
    border-radius: 50px;
    cursor: pointer;
}


/* 16. ANIMATIONS & KEYFRAMES */
@keyframes rotate-cube {
    from {
        transform: rotateX(0) rotateY(0);
    }

    to {
        transform: rotateX(360deg) rotateY(360deg);
    }
}

@keyframes scroll-anim {
    0% {
        transform: translate(-50%, 0);
        opacity: 0;
    }

    40% {
        opacity: 1;
    }

    80% {
        transform: translate(-50%, 10px);
        opacity: 0;
    }

    100% {
        opacity: 0;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

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

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

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

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

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

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

.animate-on-scroll {
    opacity: 0;
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: none !important;
}

.fade-in {
    opacity: 0;
}

.fade-in.visible {
    animation: fadeIn 1s forwards;
}

.fade-in-up {
    transform: translateY(50px);
}

.fade-in-left {
    transform: translateX(-50px);
}

.fade-in-right {
    transform: translateX(50px);
}

/* 17. UTILITY CLASSES */
.text-accent {
    color: var(--accent-color);
}

.mb-0 {
    margin-bottom: 0 !important;
}

/* 18. ICON FONT (Placeholder) */
@font-face {
    font-family: 'icomoon';
    src: url('fonts/icomoon.eot?t6a5v5');
    src: url('fonts/icomoon.eot?t6a5v5#iefix') format('embedded-opentype'),
        url('fonts/icomoon.ttf?t6a5v5') format('truetype'),
        url('fonts/icomoon.woff?t6a5v5') format('woff'),
        url('fonts/icomoon.svg?t6a5v5#icomoon') format('svg');
    font-weight: normal;
    font-style: normal;
    font-display: block;
}

[class^="icon-"],
[class*=" icon-"] {
    /* use !important to prevent issues with browser extensions that change fonts */
    font-family: 'icomoon' !important;
    speak: never;
    font-style: normal;
    font-weight: normal;
    font-variant: normal;
    text-transform: none;
    line-height: 1;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.icon-facebook:before {
    content: "\ea90";
}

.icon-twitter:before {
    content: "\ea96";
}

.icon-linkedin:before {
    content: "\eac9";
}

.icon-instagram:before {
    content: "\ea92";
}

.icon-location:before {
    content: "\e947";
}

.icon-phone:before {
    content: "\e942";
}

.icon-email:before {
    content: "\e945";
}

/* 19. MEDIA QUERIES (Responsiveness) */

/* Tablets and larger */
@media (max-width: 992px) {
    h1 {
        font-size: 3rem;
    }

    .hero h1 {
        font-size: 3.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .about-container {
        grid-template-columns: 1fr;
    }

    .about-image {
        margin-bottom: 2rem;
    }

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

    .contact-info-wrapper {
        margin-top: 3rem;
    }

    .calculator-wrapper {
        grid-template-columns: 1fr;
        padding: 2rem;
    }

    .calculator-results {
        border-left: none;
        padding-left: 0;
        margin-top: 2rem;
        padding-top: 2rem;
        border-top: 1px solid var(--border-color);
    }
}


/* Mobile devices */
@media (max-width: 768px) {
    :root {
        --header-height: 70px;
    }

    h1 {
        font-size: 2.5rem;
    }

    .hero h1 {
        font-size: 2.8rem;
    }

    section {
        padding: 4rem 0;
    }

    .container {
        padding: 0 1rem;
    }

    .main-nav,
    .header-cta {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .mobile-nav {
        display: block;
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        max-width: 300px;
        height: 100vh;
        background-color: var(--card-background-color);
        z-index: 999;
        transition: right 0.4s ease;
        padding-top: 100px;
        box-shadow: -10px 0 30px -15px rgba(2, 12, 27, 0.7);
    }

    .mobile-nav.open {
        right: 0;
    }

    .mobile-nav nav ul {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }

    .mobile-nav nav a {
        font-size: 1.2rem;
        color: var(--text-color-primary);
    }

    .mobile-nav .btn {
        display: block;
        margin: 2rem auto 0;
        text-align: center;
    }

    .hamburger.is-active span:nth-child(1) {
        transform: rotate(45deg) translate(6px, 7px);
    }

    .hamburger.is-active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.is-active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -7px);
    }

    .cube {
        width: 120px;
        height: 120px;
    }

    .face {
        width: 120px;
        height: 120px;
        font-size: 1rem;
    }

    .front {
        transform: rotateY(0deg) translateZ(60px);
    }

    .back {
        transform: rotateY(180deg) translateZ(60px);
    }

    .right {
        transform: rotateY(90deg) translateZ(60px);
    }

    .left {
        transform: rotateY(-90deg) translateZ(60px);
    }

    .top {
        transform: rotateX(90deg) translateZ(60px);
    }

    .bottom {
        transform: rotateX(-90deg) translateZ(60px);
    }

    .contact-form {
        grid-template-columns: 1fr;
    }

    .contact-form .form-group {
        grid-column: 1 / -1;
    }

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

    .footer-col .logo,
    .social-links {
        justify-content: center;
    }

    .footer-contact p {
        justify-content: center;
    }
}