:root {
    --primary: #ff0000;
    --primary-dark: #cc0000;
    --secondary: #ffd700;
    /* Gold */
    --bg-dark: #0b0e11;
    --bg-card: #151a21;
    --text-main: #ffffff;
    --text-muted: #a0a0a0;
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
    /* Modern, clean */
    --header-height: 60px;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-main);
    line-height: 1.5;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

/* === Header === */
.header {
    height: var(--header-height);
    background: rgba(11, 14, 17, 0.95);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1rem;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.hamburger {
    font-size: 1.5rem;
    color: var(--text-main);
    cursor: pointer;
}

.logo {
    font-size: 1.4rem;
    font-weight: 900;
    letter-spacing: -0.5px;
    font-style: italic;
    /* Speed look */
    text-transform: uppercase;
}

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

.header-actions {
    display: flex;
    gap: 0.5rem;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 700;
    text-decoration: none;
    transition: transform 0.2s;
}

.btn-login {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: var(--text-main);
}

.btn-register {
    background: var(--primary);
    color: var(--text-main);
    box-shadow: 0 0 10px rgba(255, 0, 0, 0.4);
    border: none;
}

/* === Hero Section (The "Screen 1") === */
.hero {
    margin-top: var(--header-height);
    height: 90vh;
    /* Almost full screen */
    background: linear-gradient(180deg, rgba(11, 14, 17, 0.3) 0%, var(--bg-dark) 100%),
        url('https://images.unsplash.com/photo-1568605117036-5fe5e7bab0b7?ixlib=rb-1.2.1&auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
    /* Red Racing Car Image */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
    position: relative;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, transparent 0%, var(--bg-dark) 90%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 500px;
}

.hero-tag {
    background: var(--secondary);
    color: #000;
    font-weight: 800;
    padding: 0.2rem 0.8rem;
    border-radius: 20px;
    text-transform: uppercase;
    font-size: 0.8rem;
    display: inline-block;
    margin-bottom: 1rem;
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.5);
}

.hero h1 {
    font-size: 2.5rem;
    line-height: 1.1;
    margin-bottom: 1rem;
    text-transform: uppercase;
    font-style: italic;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.8);
}

.hero p {
    font-size: 1.1rem;
    color: #ddd;
    margin-bottom: 2rem;
}

.cta-btn {
    display: inline-block;
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    font-size: 1.2rem;
    font-weight: 800;
    padding: 1rem 3rem;
    border-radius: 50px;
    box-shadow: 0 0 25px rgba(255, 0, 0, 0.6);
    border: 2px solid rgba(255, 255, 255, 0.1);
    transform: perspective(500px) rotateX(0deg);
    transition: all 0.3s;
    text-transform: uppercase;
    animation: pulse-btn 2s infinite;
}

@keyframes pulse-btn {
    0% {
        box-shadow: 0 0 20px rgba(255, 0, 0, 0.6);
        transform: scale(1);
    }

    50% {
        box-shadow: 0 0 40px rgba(255, 0, 0, 0.8);
        transform: scale(1.05);
    }

    100% {
        box-shadow: 0 0 20px rgba(255, 0, 0, 0.6);
        transform: scale(1);
    }
}

/* === Content Section === */
.content {
    padding: 2rem 1rem;
    max-width: 800px;
    margin: 0 auto;
}

.text-block {
    margin-bottom: 2rem;
}

.text-block h2 {
    color: var(--secondary);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    border-left: 3px solid var(--primary);
    padding-left: 0.8rem;
}

.text-block p {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    text-align: justify;
}

/* === Footer === */
.footer {
    border-top: 1px solid #222;
    padding: 2rem 1rem;
    text-align: center;
    color: #555;
    font-size: 0.75rem;
    background: #000;
}

.warning-box {
    border: 1px solid #333;
    padding: 1rem;
    margin-top: 1rem;
    color: #777;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* === Mobile Tweaks === */
@media (max-width: 400px) {
    .hero h1 {
        font-size: 2rem;
    }

    .header-actions .btn-login {
        display: none;
    }

    /* Save space */
}