:root {
    --bg-color: #0c0c0e;
    --surface-color: #16161a;
    --text-primary: #fffffe;
    --text-secondary: #94a1b2;
    --accent: #7f5af0;
    --accent-hover: #6246ea;
    --border-color: #242629;

    --font-main: 'Inter', sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    --container-width: 1200px;
    --border-radius: 8px;
    --transition-speed: 0.3s;
}

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

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

img {
    max-width: 100%;
    display: block;
}

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

ul {
    list-style: none;
}

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

.section-padding {
    padding: var(--spacing-xl) 0;
}

/* Header */
.site-header {
    padding: var(--spacing-md) 0;
    position: absolute;
    /* or fixed if sticky needed */
    width: 100%;
    top: 0;
    z-index: 10;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo {
    height: 40px;
    width: auto;
}

.logo-text {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
}

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: radial-gradient(circle at top right, rgba(127, 90, 240, 0.1), transparent 40%),
        radial-gradient(circle at bottom left, rgba(44, 182, 125, 0.05), transparent 40%);
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    font-weight: 800;
    letter-spacing: -0.03em;
}

.hero-sub {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    background-color: var(--accent);
    color: #fffffe;
    padding: 1rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: transform var(--transition-speed), background-color var(--transition-speed);
}

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

/* Services */
.section-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    position: relative;
    display: table;
    margin-left: auto;
    margin-right: auto;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0.5);
    transform-origin: center;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.service-card {
    background: var(--surface-color);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: border-color var(--transition-speed), transform var(--transition-speed);
}

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

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.service-card p {
    color: var(--text-secondary);
}

/* Clients */
.client-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
    text-align: center;
}

.client-list li {
    font-size: 1.25rem;
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 50px;
}

/* Footer */
.site-footer {
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.contact-link {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--accent);
    padding-bottom: 5px;
    display: inline-block;
    /* Ensure it respects padding/border */
}

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

.contact-info {
    margin-bottom: var(--spacing-lg);
}



.copyright {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

.delay-1 {
    transition-delay: 0.1s;
}

.delay-2 {
    transition-delay: 0.2s;
}

.delay-3 {
    transition-delay: 0.3s;
}