:root {
    /* Colors */
    --bg-color: #08080a;
    --bg-light: #121217;
    --bg-card: rgba(255, 255, 255, 0.03);
    --border-color: rgba(255, 255, 255, 0.08);
    
    --text-primary: #ffffff;
    --text-secondary: #a0a0a5;
    
    --accent-primary: #bfff00;
    --accent-secondary: #2db82d;
    --accent-gradient: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    
    /* Typography */
    --font-main: 'Outfit', sans-serif;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Spacing */
    --section-padding: 6rem 0;
}

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

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-normal);
}

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section-padding {
    padding: var(--section-padding);
}

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

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.text-gradient {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: var(--transition-normal);
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

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

.btn-primary:hover {
    box-shadow: 0 10px 20px rgba(191, 255, 0, 0.3);
    transform: translateY(-3px);
}

.btn-secondary {
    background: var(--bg-card);
    color: white;
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-3px);
}

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

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

.btn-outline-light {
    background: transparent;
    border: 1px solid white;
    color: white;
}

.btn-outline-light:hover {
    background: white;
    color: var(--bg-color);
}

.btn-whatsapp {
    background: #25D366;
    color: white;
}

.btn-whatsapp:hover {
    box-shadow: 0 10px 20px rgba(37, 211, 102, 0.3);
    transform: translateY(-3px);
}

.btn-block {
    width: 100%;
}

/* NAVIGATION */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 0.5rem 0;
    z-index: 1000;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(8, 8, 10, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 0.3rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
}

.logo-placeholder {
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border: 1px dashed var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6rem;
    border-radius: 8px;
    text-align: center;
    line-height: 1.1;
    color: var(--text-secondary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a:not(.btn) {
    font-weight: 500;
    color: var(--text-secondary);
}

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

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* MOBILE MENU */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: var(--bg-color);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: 0.4s cubic-bezier(0.77, 0, 0.175, 1);
}

.mobile-menu.active {
    right: 0;
}

.close-menu {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 2rem;
    cursor: pointer;
}

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

.mobile-nav-links a {
    font-size: 1.5rem;
    font-weight: 500;
}

/* HERO SECTION */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 5rem;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
}

.gradient-sphere {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.3;
}

.sphere-1 {
    width: 600px;
    height: 600px;
    background: var(--accent-primary);
    top: -200px;
    left: -100px;
}

.sphere-2 {
    width: 500px;
    height: 500px;
    background: var(--accent-secondary);
    bottom: 0;
    right: -100px;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

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

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

/* SERVICES SECTION */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 2.5rem 2rem;
    border-radius: 16px;
    transition: var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
    background: rgba(255, 255, 255, 0.05);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: rgba(191, 255, 0, 0.1);
    color: var(--accent-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* WHY US SECTION */
.why-us-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.features-list {
    margin-top: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.features-list li {
    display: flex;
    gap: 1rem;
}

.feature-icon {
    width: 30px;
    height: 30px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 0.8rem;
    color: white;
    margin-top: 0.2rem;
}

.features-list h4 {
    margin-bottom: 0.3rem;
    font-size: 1.1rem;
}

.features-list p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Abstract Visual Box */
.visual-card {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.visual-header {
    background: var(--bg-card);
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.dots {
    display: flex;
    gap: 0.4rem;
}

.dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border-color);
}

.visual-body {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.wireframe-line {
    height: 12px;
    background: var(--bg-card);
    border-radius: 6px;
    width: 100%;
}

.wireframe-line.short {
    width: 60%;
}

.wireframe-box {
    height: 120px;
    background: var(--bg-card);
    border-radius: 8px;
    margin: 1rem 0;
}

.wireframe-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1rem;
    margin-top: 1rem;
}

.wireframe-grid div {
    height: 80px;
    background: var(--bg-card);
    border-radius: 8px;
}

/* OUR WORK SECTION */
.portfolio-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    cursor: pointer;
    font-family: var(--font-main);
    font-weight: 500;
    transition: var(--transition-normal);
}

.filter-btn:hover, .filter-btn.active {
    background: var(--text-primary);
    color: var(--bg-color);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
}

.project-image {
    position: relative;
    width: 100%;
    aspect-ratio: 16/10;
    background: var(--bg-light);
    overflow: hidden;
}

.image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.image-placeholder i {
    font-size: 2.5rem;
    opacity: 0.5;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(8, 8, 10, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
    backdrop-filter: blur(2px);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-info {
    padding: 1.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.project-category {
    font-size: 0.8rem;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.project-name {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.project-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* FREE DEMO SECTION */
.demo-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 4rem;
    align-items: center;
}

.demo-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.demo-highlight {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    margin-bottom: 2.5rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border-radius: 12px;
    border-left: 4px solid var(--accent-primary);
}

.icon-box {
    width: 40px;
    height: 40px;
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent-primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.whatsapp-prompt {
    margin-top: 2rem;
}

.whatsapp-prompt p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.demo-form-container {
    background: var(--bg-color);
    padding: 2.5rem;
    border-radius: 16px;
    border: 1px solid var(--border-color);
}

.demo-form h3 {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.form-group {
    margin-bottom: 1.2rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-main);
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    background: rgba(255, 255, 255, 0.05);
}

/* FOOTER */
.footer {
    background: var(--bg-light);
    border-top: 1px solid var(--border-color);
    padding-top: 4rem;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    margin-bottom: 1rem;
}

.footer-brand p {
    color: var(--text-secondary);
    max-width: 300px;
}

.footer-contact h4,
.footer-links h4 {
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.footer-contact ul,
.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--text-secondary);
}

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

.footer-links a,
.footer-contact a {
    color: var(--text-secondary);
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--accent-primary);
}

.footer-bottom {
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ANIMATIONS (Scroll Reveal) */
.fade-in {
    opacity: 0;
    transition: opacity 0.8s ease;
}

.fade-in.visible {
    opacity: 1;
}

.fade-in-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
    transition-delay: var(--delay, 0s);
}

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

.fade-in-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.fade-in-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* RESPONSIVE */
@media (max-width: 992px) {
    .why-us-content,
    .demo-wrapper {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .demo-wrapper {
        padding: 2rem;
    }
    
    .footer-top {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .section-padding {
        padding: 4rem 0;
    }
}