/* --- Design Variables --- */
:root {
    --color-green: #B9FF66;
    --color-dark: #191A23;
    --color-gray: #F3F3F3;
    --color-white: #FFFFFF;
    --font-main: 'Space Grotesk', sans-serif;
}

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

body {
    font-family: var(--font-main);
    color: var(--color-dark);
    background-color: var(--color-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- Typography (Optimized Sizes) --- */
h1 {
    font-size: clamp(32px, 4.5vw, 54px);
    font-weight: 600;
    line-height: 1.15;
    margin-bottom: 24px;
}

h2 {
    font-size: clamp(28px, 3.5vw, 40px);
    font-weight: 600;
    line-height: 1.2;
}

h3 {
    font-size: clamp(20px, 3vw, 26px);
    font-weight: 500;
    line-height: 1.3;
}

p {
    font-size: 17px;
    font-weight: 400;
    color: #444;
}

.inline-block { display: inline-block; }
.mb-3 { margin-bottom: 12px; }
.mt-4 { margin-top: 24px; }

/* --- Animations --- */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 500;
    border-radius: 12px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    white-space: nowrap;
}

.w-100 {
    width: 100%;
}

.btn-primary {
    background-color: var(--color-dark);
    color: var(--color-white);
    border: 1px solid var(--color-dark);
    box-shadow: 0 4px 14px rgba(25, 26, 35, 0.2);
}

.btn-primary:hover {
    background-color: var(--color-white);
    color: var(--color-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(25, 26, 35, 0.15);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-dark);
    border: 1px solid var(--color-dark);
}

.btn-outline:hover {
    background-color: var(--color-dark);
    color: var(--color-white);
    transform: translateY(-2px);
}

/* --- Header & Navigation --- */
.navbar {
    padding: 20px 0;
    position: sticky;
    top: 0;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    z-index: 999;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

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

.logo {
    font-size: 26px;
    font-weight: 700;
    display: flex;
    align-items: center;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links a:not(.btn) {
    font-size: 16px;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:not(.btn):hover {
    color: #8cc44b; /* darker green for hover text */
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--color-dark);
}

.mobile-nav {
    display: none;
    flex-direction: column;
    padding: 20px;
    background-color: var(--color-gray);
    position: absolute;
    width: 100%;
    top: 100%;
    left: 0;
    z-index: 100;
    gap: 20px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.mobile-nav.active {
    display: flex;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- Hero Section --- */
.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 60px 0 80px 0;
    gap: 40px;
}

.hero-content {
    flex: 1.1;
    max-width: 600px;
}

.hero-content p {
    margin-bottom: 32px;
    font-size: 18px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.highlight-green {
    background-color: var(--color-green);
    color: var(--color-dark);
    padding: 2px 8px;
    border-radius: 8px;
    display: inline-block;
    transform: rotate(-1deg);
}

.hero-image {
    flex: 0.9;
    display: flex;
    justify-content: flex-end;
    position: relative;
}

.hero-graphic {
    position: relative;
    width: 100%;
    max-width: 450px;
}

.illustration-placeholder {
    width: 100%;
    aspect-ratio: 1;
    background: linear-gradient(135deg, var(--color-green) 0%, #8cc44b 100%);
    border-radius: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: -15px 15px 0 var(--color-dark);
}

.floating-card {
    position: absolute;
    background: white;
    padding: 12px 20px;
    border-radius: 12px;
    border: 1px solid var(--color-dark);
    box-shadow: 4px 4px 0 var(--color-dark);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 10;
    animation: float 6s ease-in-out infinite;
}

.card-1 { top: 10%; left: -20px; animation-delay: 0s; }
.card-2 { bottom: 20%; right: -30px; animation-delay: 2s; }
.card-3 { bottom: -20px; left: 10%; animation-delay: 4s; }

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
    100% { transform: translateY(0px); }
}

/* --- Client Logos / Tech Stack --- */
.client-logos {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 20px;
    padding: 20px 0 80px 0;
}

.tech-label {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: #888;
    font-weight: 500;
}

.tech-icons {
    display: flex;
    gap: 50px;
    flex-wrap: wrap;
    justify-content: center;
    font-size: 40px;
    color: var(--color-dark);
    opacity: 0.7;
}

.logo-item {
    transition: all 0.3s ease;
}

.logo-item:hover {
    opacity: 1;
    transform: scale(1.15) translateY(-5px);
    color: var(--color-green);
}

/* --- General Section Header --- */
.section-header {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-bottom: 50px;
    justify-content: center;
    text-align: center;
    flex-direction: column;
}

.section-header h2 {
    background-color: var(--color-green);
    padding: 4px 12px;
    border-radius: 8px;
    display: inline-block;
}

.section-header p {
    max-width: 600px;
    font-size: 18px;
}

@media (min-width: 768px) {
    .section-header {
        flex-direction: row;
        justify-content: flex-start;
        text-align: left;
    }
}

/* --- Services Section --- */
.services {
    padding-bottom: 100px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.service-card {
    border-radius: 30px;
    padding: 40px;
    display: flex;
    justify-content: space-between;
    align-items: stretch;
    border: 1px solid var(--color-dark);
    box-shadow: 0 5px 0 var(--color-dark);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 13px 0 var(--color-dark);
}

.card-gray { background-color: var(--color-gray); }
.card-green { background-color: var(--color-green); }
.card-dark { background-color: var(--color-dark); color: var(--color-white); }
.card-dark p.service-desc { color: #ccc; }

.card-content {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    z-index: 2;
}

.service-desc {
    margin-top: 16px;
    font-size: 15px;
    line-height: 1.5;
}

.highlight-white {
    background-color: var(--color-white);
    color: var(--color-dark);
    padding: 2px 6px;
    border-radius: 6px;
}

.learn-more {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 16px;
    font-weight: 500;
    margin-top: 30px;
    transition: transform 0.3s ease;
}

.learn-more:hover {
    transform: translateX(5px);
}

.icon-circle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.icon-circle.dark {
    background-color: var(--color-dark);
    color: var(--color-green);
}

.icon-circle.light {
    background-color: var(--color-white);
    color: var(--color-dark);
}

.light-text { color: var(--color-white); }
.dark-text { color: var(--color-dark); }

.card-image {
    position: absolute;
    right: 20px;
    bottom: 20px;
    opacity: 0.15;
    transform: rotate(-15deg);
    z-index: 1;
}
.card-image i {
    font-size: 8rem;
}

/* --- CTA Section --- */
.cta {
    padding-bottom: 100px;
}

.cta-box {
    background-color: var(--color-gray);
    border-radius: 40px;
    padding: 50px 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(0,0,0,0.05);
}

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

.cta-content h2 {
    margin-bottom: 16px;
}

.cta-content p {
    margin-bottom: 30px;
    max-width: 450px;
    font-size: 18px;
}

.cta-image {
    position: absolute;
    right: 60px;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.1;
}

/* --- Case Studies (Portfolio) --- */
.case-studies {
    padding-bottom: 100px;
}

.case-studies-box {
    background-color: var(--color-dark);
    border-radius: 40px;
    padding: 60px;
    display: flex;
    gap: 40px;
    color: var(--color-white);
}

.case-study {
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
}

.case-study:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -20px;
    top: 0;
    height: 100%;
    width: 1px;
    background-color: rgba(255, 255, 255, 0.15);
}

.case-study p {
    color: #ccc;
    font-size: 16px;
    line-height: 1.6;
}

.case-study strong {
    color: var(--color-white);
}

@media (max-width: 768px) {
    .case-studies-box {
        flex-direction: column;
        padding: 40px 30px;
    }
    .case-study:not(:last-child)::after {
        right: 0;
        top: auto;
        bottom: -20px;
        height: 1px;
        width: 100%;
    }
}

/* --- Working Process (Accordion) --- */
.process {
    padding-bottom: 100px;
}

.accordion {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.accordion-item {
    border: 1px solid var(--color-dark);
    border-radius: 30px;
    background-color: var(--color-gray);
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 5px 0 var(--color-dark);
}

.accordion-item.active {
    background-color: var(--color-green);
}

.accordion-header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 30px 40px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 22px;
    font-family: inherit;
    font-weight: 600;
    color: var(--color-dark);
    text-align: left;
}

.step-num {
    font-size: 44px;
    margin-right: 24px;
    font-weight: 500;
}

.accordion-header i {
    font-size: 24px;
    transition: transform 0.3s;
    background-color: var(--color-gray);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--color-dark);
}

.accordion-item.active .accordion-header i {
    transform: rotate(45deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out;
    padding: 0 40px;
}

.accordion-content p {
    padding-bottom: 30px;
    padding-top: 10px;
    border-top: 1px solid var(--color-dark);
    font-size: 17px;
}

/* --- About Me Section --- */
.about-me {
    padding-bottom: 100px;
}

.about-content {
    display: flex;
    align-items: center;
    gap: 60px;
    background-color: var(--color-white);
    border-radius: 40px;
    padding: 60px;
    border: 1px solid var(--color-dark);
    box-shadow: 0 6px 0 var(--color-dark);
}

.about-text {
    flex: 1.2;
}

.about-image-wrapper {
    flex: 0.8;
    position: relative;
    display: flex;
    justify-content: center;
}

.about-image {
    width: 250px;
    height: 250px;
    background-color: var(--color-green);
    border-radius: 50%;
    border: 2px solid var(--color-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: -10px 10px 0 var(--color-gray);
}

.experience-badge {
    position: absolute;
    bottom: -10px;
    right: 20px;
    background: var(--color-dark);
    color: white;
    padding: 15px;
    border-radius: 50%;
    width: 100px;
    height: 100px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    transform: rotate(10deg);
}

.experience-badge .years {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-green);
}

.experience-badge .text {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* --- Testimonials --- */
.testimonials {
    padding-bottom: 100px;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.testimonial-card {
    background-color: var(--color-gray);
    padding: 40px;
    border-radius: 30px;
    border: 1px solid var(--color-dark);
    box-shadow: 0 5px 0 var(--color-dark);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.quote {
    font-size: 18px;
    font-style: italic;
    margin-bottom: 30px;
    position: relative;
}

.quote::before {
    content: '"';
    font-size: 60px;
    color: var(--color-green);
    position: absolute;
    top: -20px;
    left: -20px;
    opacity: 0.5;
    font-family: serif;
}

.author {
    display: flex;
    align-items: center;
    gap: 16px;
    border-top: 1px solid rgba(0,0,0,0.1);
    padding-top: 20px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    background-color: var(--color-dark);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.author h4 {
    font-size: 16px;
    font-weight: 600;
}

.author span {
    font-size: 14px;
    color: #666;
}

/* --- Contact Us Section --- */
.contact-us {
    padding-bottom: 100px;
}

.contact-container {
    background-color: var(--color-gray);
    border-radius: 40px;
    padding: 60px;
    display: flex;
    justify-content: space-between;
    gap: 60px;
    position: relative;
    border: 1px solid rgba(0,0,0,0.05);
}

.contact-form {
    flex: 1.5;
}

.radio-group {
    display: flex;
    gap: 24px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-size: 15px;
    font-weight: 500;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 16px 24px;
    border-radius: 14px;
    border: 1px solid #ccc;
    font-family: inherit;
    font-size: 16px;
    background-color: var(--color-white);
    transition: all 0.3s;
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--color-dark);
    box-shadow: 0 0 0 3px rgba(185, 255, 102, 0.3);
}

.contact-info-panel {
    flex: 1;
    background-color: var(--color-dark);
    color: var(--color-white);
    padding: 40px;
    border-radius: 30px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-info-panel h3 {
    margin-bottom: 30px;
    color: var(--color-green);
}

.info-item {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    font-size: 16px;
}

.info-item i {
    font-size: 20px;
    color: var(--color-green);
}

.social-links-large {
    display: flex;
    gap: 16px;
}

.social-links-large a {
    width: 44px;
    height: 44px;
    background-color: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: white;
    font-size: 20px;
    transition: all 0.3s;
}

.social-links-large a:hover {
    background-color: var(--color-green);
    color: var(--color-dark);
    transform: translateY(-3px);
}

/* --- Footer --- */
.footer {
    background-color: var(--color-dark);
    color: var(--color-white);
    padding: 60px 0 30px 0;
    border-top-left-radius: 40px;
    border-top-right-radius: 40px;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 40px;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-logo {
    font-size: 28px;
    font-weight: 700;
    display: flex;
    align-items: center;
}

.footer-nav {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.footer-nav a {
    font-size: 16px;
    transition: color 0.3s;
}

.footer-nav a:hover {
    color: var(--color-green);
}

.social-icons {
    display: flex;
    gap: 12px;
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--color-white);
    color: var(--color-dark);
    border-radius: 50%;
    transition: background-color 0.3s;
}

.social-icons a:hover {
    background-color: var(--color-green);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    padding-top: 20px;
}

.footer-bottom p, .footer-bottom a {
    font-size: 15px;
    color: #aaa;
}

.footer-bottom a:hover {
    color: var(--color-white);
    text-decoration: underline;
}

/* --- Responsive Media Queries --- */
@media (max-width: 992px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 40px;
    }
    .hero-content {
        max-width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    .hero-buttons {
        justify-content: center;
    }
    
    .about-content {
        flex-direction: column;
        text-align: center;
        padding: 40px;
    }
    .about-image-wrapper {
        order: -1;
        margin-bottom: 20px;
    }
    
    .contact-container {
        flex-direction: column;
        padding: 40px;
    }
    .contact-info-panel {
        width: 100%;
    }
    
    .footer-top {
        flex-direction: column;
        text-align: center;
    }
    .footer-nav {
        justify-content: center;
    }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-graphic {
        max-width: 300px;
    }
    .floating-card {
        padding: 8px 12px;
        font-size: 12px;
    }
    
    .services-grid, .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .accordion-header {
        padding: 20px;
        font-size: 18px;
    }
    .step-num {
        font-size: 30px;
        margin-right: 15px;
    }
}