:root {
    --primary: #ffffff;
    --accent: #ffffff;
    --bg-dark: #000000;
    --card-bg: #0a0a0a;
    --text-dim: #888888;
    --border: rgba(255, 255, 255, 0.08);
}

html {
    scroll-behavior: smooth;
    background: #000;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Base Reveal State */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1s ease-out, transform 1s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
    /* Disables text selection */
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

body {
    background-color: var(--bg-dark);
    color: var(--primary);
    min-width: 1200px;
    overflow-x: hidden;
}

/* Luxury Background Elements */
.bg-vignette {
    position: fixed;
    width: 100vw;
    height: 100vh;
    background: 
        radial-gradient(circle at 10% 10%, rgba(255, 255, 255, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 90% 90%, rgba(255, 255, 255, 0.03) 0%, transparent 50%);
    z-index: -1;
    pointer-events: none;
}

/* Navigation Bar */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    height: 80px;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.nav-container {
    width: 1100px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 15px;
    font-weight: 900;
    letter-spacing: 4px;
    cursor: pointer;
}

.nav-logo {
    height: 32px;
    transition: transform 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.nav-brand .nav-logo.rotating {
    transform: rotate(360deg);
}

.nav-links { display: flex; gap: 60px; }

.nav-links a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 3px;
    text-transform: uppercase;
    transition: color 0.3s ease;
}

.nav-links a:hover { color: #fff; }

.container {
    width: 1100px;
    margin: 0 auto;
    padding-top: 20px;
}

section { padding: 80px 0; }

header {
    text-align: center;
    padding: 40px 0;
}

.hero-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 30px;
    margin-bottom: 10px;
}

.hero-logo { height: 100px; }

header h1 {
    font-size: 5rem;
    letter-spacing: 15px;
    font-weight: 900;
    text-transform: uppercase;
}

/* CARDS - Anti-Flicker Implementation */
.main-card, .feature-card, .step {
    position: relative;
    transition: background-color 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease, transform 0.4s ease;
    will-change: transform, background-color;
}

/* Main Card */
.main-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 60px;
    text-align: center;
}

.main-card:hover {
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 40px 100px rgba(0, 0, 0, 0.9);
    transform: translateY(-5px);
}

.download-btn {
    display: inline-block;
    background: #fff;
    color: #000;
    text-decoration: none;
    padding: 22px 70px;
    font-weight: 900;
    font-size: 1.3rem;
    letter-spacing: 5px;
    text-transform: uppercase;
    border: 1px solid #fff;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.download-btn:hover {
    background: transparent;
    color: #fff;
    transform: scale(1.05);
}

/* Feature Grid and Help Cards */
.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 50px;
}

.feature-card {
    padding: 50px 40px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.02);
    /* Stable pointer events area */
    pointer-events: auto;
}

.feature-card:hover { 
    background: rgba(255, 255, 255, 0.05);
    border-color: #fff;
    transform: translateY(-5px); /* Minimal move to avoid flicker */
}

/* Tutorial Steps */
.tutorial {
    margin-top: 60px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.step {
    display: flex;
    gap: 40px;
    margin-bottom: 20px;
    align-items: center;
    padding: 30px;
    background: transparent;
    border-radius: 20px;
    text-align: left;
    border: 1px solid transparent;
}

.step:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.1);
}

.step-num {
    font-size: 2.5rem;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.1);
    min-width: 80px;
    transition: color 0.4s ease;
}

.step:hover .step-num { color: #fff; }

.step-text h4 {
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 8px;
    color: #fff;
}

.step-text p {
    color: var(--text-dim);
    font-size: 0.85rem;
}

/* Help Grid */
.help-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

/* About Us Layout */
.about-content {
    max-width: 850px;
    margin: 0 auto;
    text-align: center;
    background: rgba(255, 255, 255, 0.01);
    padding: 80px 60px;
    border-radius: 30px;
    border: 1px solid var(--border);
}

footer {
    padding: 100px 0;
    text-align: center;
    color: #333;
    font-size: 0.7rem;
    letter-spacing: 8px;
    text-transform: uppercase;
}