:root {
    --bg-dark: #0f172a;
    --bg-darker: #020617;
    --primary: #38bdf8; /* Sky 400 */
    --primary-glow: rgba(56, 189, 248, 0.4);
    --secondary: #818cf8; /* Indigo 400 */
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --glass-bg: rgba(30, 41, 59, 0.4);
    --glass-border: rgba(255, 255, 255, 0.1);
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* Background Effects */
.background-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    background: 
        radial-gradient(circle at 15% 50%, rgba(56, 189, 248, 0.08) 0%, transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(129, 140, 248, 0.08) 0%, transparent 25%);
}

/* Typography */
h1, h2, h3 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

p {
    color: var(--text-muted);
}

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

/* Buttons */
.btn-primary, .btn-primary-lg, .btn-primary-sm {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    display: inline-block;
}

.btn-primary:hover, .btn-primary-lg:hover, .btn-primary-sm:hover {
    box-shadow: 0 0 20px var(--primary-glow);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--text-muted);
    color: var(--text-main);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    margin-left: 1rem;
    display: inline-block;
}

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

.btn-primary-lg {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

.btn-primary-sm { /* Header button */
    padding: 0.5rem 1.25rem;
    font-size: 0.9rem;
}


/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    padding: 1.5rem 0;
    backdrop-filter: blur(10px);
    background: rgba(15, 23, 42, 0.8);
    border-bottom: 1px solid var(--glass-border);
}

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

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
}

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

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 2rem;
}

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

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

/* Hero Section */
#hero {
    padding-top: 10rem;
    padding-bottom: 6rem;
    min-height: 90vh; /* Nearly full screen */
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-sub {
    font-size: 1.125rem;
    margin-bottom: 2.5rem;
    max-width: 500px;
}

/* Dashboard Preview (Abstract CSS Art) */
.glass-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(12px);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.dashboard-preview {
    padding: 0;
    overflow: hidden;
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: transform 0.5s ease;
}

.dashboard-preview:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.card-header {
    background: rgba(0, 0, 0, 0.2);
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: monospace;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}
.red { background: #ef4444; }
.yellow { background: #eab308; }
.green { background: #22c55e; }

.card-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    height: 250px;
    justify-content: center;
}

.chart-mockup {
    display: flex;
    align-items: flex-end;
    gap: 15px;
    height: 120px;
    justify-content: space-around;
    border-bottom: 2px solid var(--glass-border);
    padding-bottom: 10px;
}

.bar {
    width: 30px;
    background: linear-gradient(to top, var(--primary), var(--secondary));
    border-radius: 4px 4px 0 0;
    opacity: 0.8;
}

.metrics-row {
    display: flex;
    gap: 1rem;
}

.metric-box {
    height: 40px;
    flex-grow: 1;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
}

/* About Section */
.section-padding {
    padding: 6rem 0;
}

.grid-2-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.feature-list {
    list-style: none;
    margin-top: 2rem;
}

.feature-list li {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    align-items: flex-start;
}

.accent-icon {
    color: var(--primary);
    margin-top: 0.3rem;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
}

.tag {
    background: rgba(255, 255, 255, 0.05);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tag.highlight {
    background: rgba(56, 189, 248, 0.1);
    border-color: var(--primary);
    color: var(--primary);
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    transition: transform 0.3s ease;
    padding: 2.5rem;
}

.service-card:hover {
    transform: translateY(-10px);
    background: rgba(30, 41, 59, 0.6);
}

.icon-box {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

/* Contact / CTA */
.cta-box {
    text-align: center;
    padding: 4rem 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.cta-box h2 {
    margin-bottom: 1rem;
}

.cta-box p {
    margin-bottom: 2.5rem;
    font-size: 1.1rem;
}

/* Footer */
footer {
    border-top: 1px solid var(--glass-border);
    padding: 2rem 0;
    margin-top: 2rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

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

.socials {
    display: flex;
    gap: 1.5rem;
}

.socials a {
    font-size: 1.2rem;
}

.socials a:hover {
    color: var(--primary);
}

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

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

.fade-in-delay {
    transition-delay: 0.2s;
}

/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
    
    .nav-links {
        display: none; /* simple hiding for now, JS toggles mobile */
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--bg-dark);
        border-bottom: 1px solid var(--glass-border);
        flex-direction: column;
        padding: 1rem 0;
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .hero-content, .grid-2-col {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero-sub {
        margin: 0 auto 2.5rem;
    }

    .dashboard-preview {
        transform: none; /* Disable 3d effect on mobile for performance/clutter */
        display: none; /* Potentially hide complex visuals on very small screens or keep simplified */
    }
    
    /* Show dashboard but simpler? let's keep it visible but no 3d */
    .dashboard-preview {
        display: block;
        transform: none;
    }
    
    .feature-list li {
        justify-content: flex-start; /* Keep aligned left even if text centered? or center? */
        text-align: left; 
    }
    
    .grid-2-col {
        text-align: left;
    }
}