:root {
    --color-primary: #0066cc;
    --color-primary-light: #1a7fe6;
    --color-dark: #0a0f1a;
    --color-dark-light: #111827;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--color-dark);
    color: #f8fafc;
}

/* Tailwind extensions */
.bg-dark {
    background-color: var(--color-dark);
}

.text-primary {
    color: var(--color-primary);
}

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

.bg-primary/10 {
    background-color: rgba(0, 102, 204, 0.1);
}

.bg-primary/20 {
    background-color: rgba(0, 102, 204, 0.2);
}

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

.border-primary/20 {
    border-color: rgba(0, 102, 204, 0.2);
}

.border-primary/30 {
    border-color: rgba(0, 102, 204, 0.3);
}

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

.hover\:text-primary:hover {
    color: var(--color-primary);
}

.hover\:bg-primary:hover {
    background-color: var(--color-primary);
}

/* Navbar scroll state */
#navbar.scrolled {
    background-color: rgba(10, 15, 26, 0.85);
    backdrop-filter: blur(20px);
    border-color: rgba(255, 255, 255, 0.08);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-up {
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
}

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

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Product cards */
.product-card {
    padding: 2rem;
    border-radius: 1.25rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.product-card:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(0, 102, 204, 0.3);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.product-card:hover::before {
    transform: translateX(100%);
}

/* Process steps */
.process-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem 0;
    position: relative;
    z-index: 1;
}

.step-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(0, 102, 204, 0.1);
    border: 1px solid rgba(0, 102, 204, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    font-weight: 900;
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.process-step:hover .step-icon {
    background: var(--color-primary);
    color: white;
    box-shadow: 0 0 25px rgba(0, 102, 204, 0.5);
    transform: scale(1.1);
}

/* Advantage items */
.advantage-item {
    padding: 1.25rem;
    border-radius: 1rem;
    transition: all 0.3s ease;
}

.advantage-item:hover {
    background: rgba(255, 255, 255, 0.03);
}

/* Counter */
.counter {
    font-variant-numeric: tabular-nums;
}

/* Mobile menu */
#mobile-menu {
    transition: all 0.3s ease;
}

/* Canvas */
#tech-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Selection color */
::selection {
    background: rgba(0, 102, 204, 0.4);
    color: white;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-dark);
}

::-webkit-scrollbar-thumb {
    background: rgba(0, 102, 204, 0.4);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 102, 204, 0.6);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .animate-fade-in-up {
        animation-duration: 0.6s;
    }
    
    .process-step {
        padding: 1rem 0;
    }
}