/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    border-radius: 9999px; /* Pill shape */
    font-weight: 600;
    font-size: var(--font-size-base);
    letter-spacing: 0.01em;
    transition: var(--transition-base);
    cursor: pointer;
    border: 1px solid transparent;
    text-transform: uppercase; /* Professional/Technical feel */
    font-size: 0.875rem;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-bg-main);
    box-shadow: 0 0 15px rgba(56, 189, 248, 0.3);
}

.btn-primary:hover {
    background: var(--color-text-primary); /* White hover for high contrast */
    color: var(--color-bg-main);
    transform: translateY(-2px);
    box-shadow: 0 0 25px rgba(56, 189, 248, 0.5);
}

.btn-outline {
    background: transparent;
    border-color: var(--color-border);
    color: var(--color-text-secondary);
    backdrop-filter: blur(4px);
}

.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: rgba(56, 189, 248, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(56, 189, 248, 0.2);
}

.btn-outline:active {
    transform: translateY(0);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(3, 3, 4, 0.85); /* Deep Void + High Alpha */
    backdrop-filter: blur(20px); /* Stronger blur for premium feel */
    border-bottom: 1px solid rgba(56, 189, 248, 0.15); /* Subtle cyan glow border */
    z-index: 1000;
    padding: 1.5rem 0; /* Increased vertical padding */
    transition: all 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
    will-change: transform, background-color;
}

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

.logo {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--color-text-primary);
    letter-spacing: -0.04em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-shadow: 0 0 20px rgba(56, 189, 248, 0.3);
}

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

.nav-links {
    display: flex;
    gap: 3rem; /* More breathing room */
    align-items: center;
}

.nav-links a {
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    position: relative;
    padding-bottom: 2px;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0%;
    height: 2px;
    background: var(--color-primary);
    transition: width 0.3s ease;
    box-shadow: 0 0 8px var(--color-primary);
}

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

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

/* Hero Section */
.hero {
    min-height: 100vh; /* Full viewport height */
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px; /* Nav offset */
}

/* Animated Background Mesh */
.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(56, 189, 248, 0.05) 0%, rgba(2, 6, 23, 0) 70%);
    z-index: -1;
}

.hero-mesh {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(56, 189, 248, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(56, 189, 248, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(circle at 50% 50%, black 40%, transparent 80%);
    z-index: -1;
}

.hero h1 {
    font-size: clamp(3rem, 8vw, 5.5rem);
    margin-bottom: var(--spacing-md);
    line-height: 1.05;
    letter-spacing: -0.04em;
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    max-width: 640px;
    margin: 0 auto var(--spacing-lg);
    font-weight: 400;
}

/* Glass Cards (Features/Solutions) */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.feature-card {
    background: var(--color-bg-card);
    padding: var(--spacing-xl) var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(12px);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(56, 189, 248, 0.06), transparent 40%);
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-glow), 0 20px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: rgba(56, 189, 248, 0.1);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-md);
    border: 1px solid rgba(56, 189, 248, 0.2);
    position: relative;
    transition: all 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.feature-icon svg {
    width: 48px;
    height: 48px;
    filter: drop-shadow(0 0 8px rgba(56, 189, 248, 0.3));
    transition: all 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    background: rgba(56, 189, 248, 0.15);
    border-color: rgba(56, 189, 248, 0.4);
}

.feature-card:hover .feature-icon svg {
    filter: drop-shadow(0 0 16px rgba(56, 189, 248, 0.6));
}

.feature-card h3 {
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-xl);
}

.feature-card p {
    color: var(--color-text-secondary);
    font-size: 1.0625rem; /* Slightly larger for readability */
    line-height: 1.7;
    transition: color 0.3s;
}

.feature-card:hover p {
    color: var(--color-text-primary);
}

/* Stats Section (New) */
.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    text-align: center;
    padding: var(--spacing-xl) 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    background: rgba(15, 23, 42, 0.3);
}

.stat-item h3 {
    font-size: 3rem;
    font-variant-numeric: tabular-nums;
    transition: transform 0.3s;
}

.stat-item:hover h3 {
    transform: scale(1.1);
}
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.stat-item p {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
}

/* Footer */
.footer {
    border-top: 1px solid rgba(56, 189, 248, 0.1); /* Subtle cyan border */
    padding: 6rem 0 3rem;
    background-color: #050506; /* Slightly lighter than bg-main for separation */
    background-image: radial-gradient(circle at 50% 0%, rgba(56, 189, 248, 0.03), transparent 70%);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr; /* Balanced */
    gap: 4rem;
}

.footer-col h4 {
    margin-bottom: 1.5rem;
    color: var(--color-text-primary);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 700;
    opacity: 0.9;
}

.footer-links li {
    margin-bottom: 1rem;
}

.footer-links a {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    transition: all 0.2s;
    display: inline-block;
}

.footer-links a:hover {
    color: var(--color-primary);
    transform: translateX(4px); /* Slide effect */
}

.copyright {
    text-align: center;
    margin-top: 5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.05);
    color: var(--color-text-muted);
    font-size: 0.85rem;
}