/* CSS Variables */
:root {
    --bg-dark: #000000;
    --card-bg: rgba(18, 18, 18, 0.8);
    --neon-blue: #00F2FF;
    --neon-green: #39FF14;
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.6);
    --glass-border: rgba(255, 255, 255, 0.08);
    --grad-main: linear-gradient(135deg, #00F2FF 0%, #39FF14 100%);
}

/* Global Immersive Reset */
body.cip-immersive {
    background: var(--bg-dark) !important;
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

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

/* Navigation */
.cip-nav {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 1100px;
    z-index: 1000;
    padding: 15px 30px !important;
    border-radius: 50px !important;
}

.cip-nav .logo {
    font-weight: 900;
    font-size: 1.5rem;
    letter-spacing: -1px;
}

.cip-nav nav a {
    color: var(--text-primary);
    text-decoration: none;
    margin-left: 30px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: color 0.3s;
}

.cip-nav nav a:hover {
    color: var(--neon-blue);
}

/* Glassmorphism */
.glass-morphism {
    background: var(--card-bg) !important;
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border) !important;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

/* Hero Section Refined */
.cip-hero {
    padding: 220px 0 120px;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.9)),
        url('assets/hero-car.jpg') no-repeat center center;
    background-size: cover;
    position: relative;
}

.cip-hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 200px;
    background: linear-gradient(to top, #000, transparent);
}

.premium-title {
    font-size: 5rem;
    font-weight: 800;
    margin-bottom: 20px;
    letter-spacing: -2px;
}

.accent-neon {
    background: var(--grad-main);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.4rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 50px;
}

.vin-input-wrapper {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 100px !important;
    padding: 10px !important;
    max-width: 650px;
}

.vin-input-wrapper input {
    background: transparent !important;
    border: none !important;
    padding: 15px 30px !important;
    font-size: 1.1rem;
    color: #fff;
}

.btn-neon-glow {
    background: var(--grad-main) !important;
    border-radius: 100px !important;
    padding: 15px 40px !important;
    box-shadow: 0 10px 20px rgba(0, 242, 255, 0.2);
}

/* Features */
.section-title {
    text-align: center;
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 80px;
}

.feature-card {
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.feature-card:hover {
    transform: translateY(-10px);
}

.step-num {
    background: var(--grad-main);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    opacity: 1 !important;
    font-size: 3rem !important;
}

/* Footer */
.cip-footer {
    padding: 60px 0;
    text-align: center;
    border-top: 1px solid var(--glass-border);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .premium-title {
        font-size: 3rem;
    }

    .vin-input-wrapper {
        flex-direction: column;
        border-radius: 20px !important;
    }

    .cip-nav nav {
        display: none;
    }
}