/* style.css - Zentik Labs Visual Core */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;600;800&display=swap');

:root {
    --bg-dark: #020617;       /* Deepest Blue/Black */
    --panel-left: #0f172a;    /* Dark Blue for AI */
    --panel-right: #1e1b4b;   /* Deep Indigo for 3D */
    --accent-cyan: #0ea5e9;   /* The "Zentik" Blue */
    --text-main: #f8fafc;
    --nav-height: 80px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background: var(--bg-dark);
    color: var(--text-main);
    overflow: hidden; /* Prevents scrollbars for the split screen */
    height: 100vh;
}

/* --- 1. NAVIGATION (Glassmorphism) --- */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 50px;
    height: var(--nav-height);
    width: 100%;
    position: fixed;
    top: 0;
    z-index: 1000;
    
    /* The Glass Effect */
    background: rgba(2, 6, 23, 0.7);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(14, 165, 233, 0.1);
}

.nav-logo img {
    height: 40px;
    border-radius: 6px;
    opacity: 0.8;
    transition: 0.3s;
}

.nav-logo img:hover {
    opacity: 1;
    box-shadow: 0 0 15px var(--accent-cyan);
}

.nav-links a {
    color: #94a3b8;
    text-decoration: none;
    margin-left: 30px;
    font-size: 0.95rem;
    font-weight: 600;
    transition: 0.3s;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.cta-btn {
    border: 1px solid var(--accent-cyan);
    padding: 8px 20px;
    border-radius: 4px;
    color: var(--accent-cyan) !important;
}

.cta-btn:hover {
    background: var(--accent-cyan);
    color: black !important;
}

/* --- 2. SPLIT SCREEN LAYOUT --- */
.split-container {
    display: flex;
    width: 100%;
    height: 100vh;
    position: relative; /* Needed for center logo positioning */
}

.split {
    flex: 1; /* Both sides start equal */
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    text-align: center;
    transition: flex 0.6s cubic-bezier(0.25, 1, 0.5, 1); /* Smooth slide */
    position: relative;
    overflow: hidden;
}

/* Background Gradients */
.split.left {
    background: linear-gradient(135deg, var(--panel-left) 0%, #000000 100%);
    border-right: 1px solid rgba(255,255,255,0.05);
}

.split.right {
    background: linear-gradient(225deg, var(--panel-right) 0%, #000000 100%);
}

/* Interactive Hover Effect */
.split:hover {
    flex: 1.5; /* The hovered side grows larger */
}

/* Dim the non-hovered side */
.split-container:hover .split:not(:hover) {
    opacity: 0.6;
    filter: grayscale(0.5);
}

/* Content Styling */
.split-content {
    max-width: 500px;
    padding: 40px;
    z-index: 10;
}

.split-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 15px;
    letter-spacing: -2px;
    background: linear-gradient(to bottom, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.split-content p {
    font-size: 1.1rem;
    color: #94a3b8;
    margin-bottom: 40px;
    line-height: 1.6;
}

/* --- 3. CENTER LOGO (The Hero) --- */
.center-logo-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 100; /* Stays on top of everything */
    pointer-events: none; /* Lets you click through it */
}

.center-logo {
    width: 160px; /* Big and bold */
    height: 160px;
    border-radius: 50%; /* Circle shape */
    border: 4px solid var(--accent-cyan);
    box-shadow: 0 0 50px rgba(14, 165, 233, 0.4);
    background: #000;
    padding: 5px;
    transition: 0.4s;
}

/* Hover effect on center logo */
.split-container:hover .center-logo {
    transform: scale(1.1);
    box-shadow: 0 0 80px rgba(14, 165, 233, 0.8);
}

/* --- 4. BUTTONS (Glassmorphism) --- */
.btn-glass {
    display: inline-block;
    padding: 16px 40px;
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-main);
    text-decoration: none;
    
    /* Glass Effect */
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    backdrop-filter: blur(4px);
    transition: all 0.3s ease;
}

.btn-glass:hover {
    background: var(--accent-cyan);
    border-color: var(--accent-cyan);
    color: #000;
    box-shadow: 0 0 30px rgba(14, 165, 233, 0.4);
    transform: translateY(-3px);
}