:root {
    --bg-color: #0B0B0B;
    --surface-dark: #111111;
    --surface-light: #1A1A1A;
    --surface-hover: #222222;
    --text-primary: #FFFFFF;
    --text-secondary: #A0A0A0;
    --accent-primary: #00F0FF;
    /* Electric Blue */
    --accent-secondary: #39FF14;
    /* Neon Green */
    --border-color: rgba(255, 255, 255, 0.08);
    --glass-bg: rgba(17, 17, 17, 0.7);

    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    --transition-fast: 0.3s cubic-bezier(0.25, 1, 0.5, 1);
    --transition-medium: 0.6s cubic-bezier(0.22, 1, 0.36, 1);
    --transition-slow: 1s cubic-bezier(0.22, 1, 0.36, 1);

    --section-padding: 100px 5%;
    --max-width: 1200px;
}

html {
    scroll-behavior: smooth;
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-body);
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    line-height: 1.6;
    animation: fadeInPage 0.6s ease forwards;
}

body.fade-out {
    animation: fadeOutPage 0.4s ease forwards;
}

@keyframes fadeInPage {
    0% {
        opacity: 0;
    }

    100% {
        opacity: 1;
    }
}

@keyframes fadeOutPage {
    0% {
        opacity: 1;
    }

    100% {
        opacity: 0;
    }
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

h1 {
    font-size: clamp(3rem, 5vw, 4.5rem);
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    letter-spacing: -0.01em;
    margin-bottom: 30px;
}

h3 {
    font-size: 1.75rem;
    margin-bottom: 15px;
}

p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

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

/* Layout */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    width: 100%;
}

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

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 20px 5%;
    transition: var(--transition-medium);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    display: flex;
    align-items: center;
    gap: 10px;
}

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

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

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0%;
    height: 2px;
    background: var(--accent-primary);
    transition: var(--transition-fast);
}

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

.menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 15px 32px;
    border-radius: 100px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-fast);
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.btn-primary:hover {
    background: transparent;
    color: var(--text-primary);
    transform: translateY(-4px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

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

.btn-secondary:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    transform: translateY(-4px);
    box-shadow: 0 10px 20px rgba(0, 240, 255, 0.1);
}

.btn-accent {
    background: var(--accent-primary);
    color: var(--bg-color);
    border: 2px solid var(--accent-primary);
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
}

.btn-accent:hover {
    background: transparent;
    color: var(--accent-primary);
    box-shadow: 0 10px 30px rgba(0, 240, 255, 0.6);
    transform: translateY(-4px);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 120px;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 20%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.15) 0%, rgba(11, 11, 11, 0) 70%);
    z-index: -1;
    pointer-events: none;
    animation: pulseGlow 8s infinite alternate cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes pulseGlow {
    0% {
        transform: translateX(-50%) scale(1);
        opacity: 0.7;
    }

    100% {
        transform: translateX(-50%) scale(1.15);
        opacity: 1;
    }
}

.hero-content {
    max-width: 900px;
    text-align: center;
    margin: 0 auto;
}

.hero-tagline {
    display: inline-block;
    padding: 8px 16px;
    background: var(--surface-light);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--accent-secondary);
    margin-bottom: 30px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero h1 {
    margin-bottom: 24px;
}

.hero h1 span {
    background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.shimmer-text {
    background: linear-gradient(-45deg,
            var(--text-secondary) 20%,
            var(--accent-primary) 40%,
            var(--text-primary) 60%,
            var(--text-secondary) 80%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: shimmer 4s linear infinite;
}

@keyframes shimmer {
    to {
        background-position: 200% center;
    }
}

/* Hero Staggered Animation */
.hero-anim-1,
.hero-anim-2,
.hero-anim-3,
.hero-anim-4 {
    opacity: 0;
    will-change: opacity, transform;
    animation: slideUpFade 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.hero-anim-1 {
    animation-delay: 0.2s;
}

.hero-anim-2 {
    animation-delay: 0.4s;
}

.hero-anim-3 {
    animation-delay: 0.6s;
}

.hero-anim-4 {
    animation-delay: 0.8s;
}

@keyframes slideUpFade {
    0% {
        opacity: 0;
        transform: translateY(40px);
    }

    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Floating Shapes in Hero */
.hero-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
    pointer-events: none;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: floatShape 15s infinite ease-in-out alternate;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background: rgba(0, 240, 255, 0.15);
    /* Accent Primary */
    top: 10%;
    left: -5%;
    animation-duration: 20s;
}

.shape-2 {
    width: 400px;
    height: 400px;
    background: rgba(57, 255, 20, 0.1);
    /* Accent Secondary */
    bottom: -10%;
    right: -10%;
    animation-delay: -5s;
}

.shape-3 {
    width: 250px;
    height: 250px;
    background: rgba(187, 134, 252, 0.15);
    /* Purple / Third color to mix */
    top: 40%;
    left: 60%;
    animation-delay: -10s;
    animation-duration: 25s;
}

@keyframes floatShape {
    0% {
        transform: translate(0, 0) scale(1);
    }

    33% {
        transform: translate(30px, -50px) scale(1.1);
    }

    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }

    100% {
        transform: translate(0, 0) scale(1);
    }
}

.hero .hero-sub {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto 40px auto;
}

.hero-btns {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* Stats Section */
.stats {
    background: var(--surface-dark);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 60px 5%;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

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

.stat-value {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.stat-value span {
    color: var(--accent-secondary);
}

.stat-label {
    font-size: 1rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Generic Grid Layouts */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

/* About Preview */
.about-preview .about-image {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
}

.about-preview .about-image img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    filter: grayscale(100%);
    transition: var(--transition-medium);
}

.about-preview .about-image:hover img {
    filter: grayscale(0%);
}

.about-preview .about-image::after {
    content: '';
    position: absolute;
    inset: 0;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    pointer-events: none;
}

/* Service Blocks */
.service-card {
    background: var(--surface-light);
    border: 1px solid var(--border-color);
    padding: 40px;
    border-radius: 20px;
    transition: var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--accent-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-medium);
}

.service-card:hover {
    transform: translateY(-8px) scale(1.02);
    background: var(--surface-hover);
    border-color: var(--accent-primary);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4), 0 0 20px rgba(0, 240, 255, 0.1);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--accent-primary);
    margin-bottom: 20px;
}

/* Results & Features */
.feature-list {
    list-style: none;
    margin-top: 30px;
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 20px;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.feature-list li i {
    color: var(--accent-secondary);
    font-size: 1.5rem;
    margin-top: 2px;
}

/* Clients Tape */
.clients {
    padding: 60px 0;
    overflow: hidden;
    background: var(--surface-dark);
}

.clients-track {
    display: flex;
    width: max-content;
    animation: scroll 30s linear infinite;
}

.clients-track:hover {
    animation-play-state: paused;
}

.clients-track h3 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    color: rgba(255, 255, 255, 0.1);
    margin: 0 40px;
    text-transform: uppercase;
    white-space: nowrap;
    -webkit-text-stroke: 1px rgba(255, 255, 255, 0.2);
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}

/* Footer / CTA Section */
.cta-section {
    text-align: center;
    padding: 120px 5%;
    background: linear-gradient(180deg, var(--bg-color) 0%, var(--surface-dark) 100%);
    border-top: 1px solid var(--border-color);
    position: relative;
}

.cta-section h2 {
    font-size: clamp(3rem, 5vw, 4.5rem);
    max-width: 800px;
    margin: 0 auto 30px auto;
}

footer {
    padding: 40px 5%;
    text-align: center;
    border-top: 1px solid var(--border-color);
    background: var(--surface-dark);
    color: var(--text-secondary);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--accent-primary);
    color: var(--bg-color);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(0, 240, 255, 0.4);
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transform: translateY(20px);
    transition: var(--transition-medium);
}

.back-to-top.show {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--text-primary);
    color: var(--bg-color);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
    transform: translateY(-5px);
}

/* Animations Triggered by JS */
.fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1s cubic-bezier(0.22, 1, 0.36, 1), transform 1.2s cubic-bezier(0.22, 1, 0.36, 1);
    will-change: opacity, transform;
}

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

/* Responsive - Desktop, Tablets & Mobile */
@media (max-width: 1200px) {
    :root {
        --section-padding: 80px 5%;
    }
}

@media (max-width: 992px) {
    :root {
        --section-padding: 70px 5%;
    }
    
    .grid-2 {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .hero {
        min-height: 80vh;
        height: auto;
        padding-top: 150px;
        padding-bottom: 100px;
    }
    
    .hero h1 {
        font-size: 3.5rem;
    }
    
    .about-preview .about-image img {
        height: 400px !important;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px 20px;
    }
    
    header {
        padding: 15px 20px;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--surface-dark);
        flex-direction: column;
        padding: 20px 0;
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    }

    .nav-links.active {
        display: flex;
    }
    
    .nav-links a {
        margin: 15px 0;
        font-size: 1.1rem;
    }

    .menu-btn {
        display: block;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }

    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero .hero-sub {
        font-size: 1.1rem;
    }

    .hero-btns {
        flex-direction: column;
        gap: 15px;
    }

    .btn {
        display: flex !important;
        width: 100% !important;
        box-sizing: border-box;
        justify-content: center;
        text-align: center;
    }
    
    .clients-track h3 {
        font-size: 1.8rem;
    }
    
    .cta-section h2 {
        font-size: 2.2rem;
    }
    
    .back-to-top {
        width: 40px;
        height: 40px;
        bottom: 20px;
        right: 20px;
        font-size: 1.2rem;
    }
    
    .about-preview .about-image img {
        height: 350px !important;
    }
}

@media (max-width: 480px) {
    :root {
        --section-padding: 50px 15px;
    }
    
    header {
        padding: 15px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .clients-track h3 {
        font-size: 1.5rem;
    }
    
    .page-header h1 {
        font-size: 2.5rem;
    }
    
    .about-preview .about-image img {
        height: 250px !important;
    }
}

/* Case Study Blocks & Blog Cards */
.case-study .card-img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    filter: grayscale(100%);
    transition: var(--transition-medium);
}

.case-study:hover .card-img {
    filter: grayscale(0%);
}

.case-study {
    background: var(--surface-light);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    margin-bottom: 40px;
}

.case-study-header {
    padding: 40px;
    border-bottom: 1px solid var(--border-color);
    background: var(--surface-dark);
}

.case-study-body {
    padding: 40px;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 30px;
}

.case-col h4 {
    color: var(--accent-primary);
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.case-col ul {
    list-style: none;
}

.case-col ul li {
    margin-bottom: 10px;
    color: var(--text-secondary);
    position: relative;
    padding-left: 20px;
}

.case-col ul li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-secondary);
}

@media(max-width: 768px) {
    .case-study-body {
        grid-template-columns: 1fr;
    }
}

/* FAQ */
.faq-item {
    border-bottom: 1px solid var(--border-color);
    padding: 25px 0;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 600;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: var(--transition-medium);
    color: var(--text-secondary);
    margin-top: 0;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    margin-top: 15px;
}

.faq-icon {
    transition: var(--transition-fast);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
    color: var(--accent-primary);
}

/* Forms */
.form-group {
    margin-bottom: 25px;
}

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

.form-control {
    width: 100%;
    padding: 15px;
    background: var(--surface-dark);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: var(--font-body);
    transition: var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 10px rgba(0, 240, 255, 0.1);
}

textarea.form-control {
    min-height: 150px;
    resize: vertical;
}

/* Page Headers */
.page-header {
    padding: 150px 5% 80px 5%;
    text-align: center;
    background: linear-gradient(180deg, var(--surface-dark) 0%, var(--bg-color) 100%);
    border-bottom: 1px solid var(--border-color);
}

.page-header h1 {
    font-size: clamp(3rem, 5vw, 5rem);
    margin-bottom: 20px;
}

.page-header p {
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto;
}