:root {
    --bg-color: #0f172a;
    --text-color: #f8fafc;
    --accent-color: #3b82f6;
    --accent-hover: #60a5fa;
    --card-bg: rgba(30, 41, 59, 0.7);
    --card-border: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    background-image: 
        radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(16, 185, 129, 0.15) 0px, transparent 50%);
    background-attachment: fixed;
    min-height: 100vh;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
}

header {
    text-align: center;
    margin-bottom: 4rem;
}

h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(to right, #60a5fa, #34d399);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -1px;
}

header p {
    font-size: 1.2rem;
    color: #94a3b8;
    max-width: 600px;
    margin: 0 auto;
}

section {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 2.5rem;
    margin-bottom: 2.5rem;
    backdrop-filter: blur(12px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

section:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--card-border);
    padding-bottom: 0.5rem;
    color: #e2e8f0;
}

/* Download Section */
.download-section {
    text-align: center;
}

.download-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--accent-color);
    color: white;
    text-decoration: none;
    padding: 1rem 2rem;
    border-radius: 9999px;
    font-weight: 600;
    font-size: 1.1rem;
    margin: 1.5rem 0;
    transition: all 0.2s ease;
    box-shadow: 0 4px 14px 0 rgba(59, 130, 246, 0.39);
}

.download-button:hover {
    background-color: var(--accent-hover);
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.23);
}

.subtext {
    font-size: 0.9rem;
    color: #94a3b8;
}

/* Steps Section */
.step {
    display: flex;
    flex-direction: column;
    margin-bottom: 3rem;
    gap: 1.5rem;
}

.step:last-child {
    margin-bottom: 0;
}

.step-text h3 {
    font-size: 1.3rem;
    color: #60a5fa;
    margin-bottom: 0.5rem;
}

.step-text p {
    color: #cbd5e1;
}

.step img {
    max-width: 100%;
    border-radius: 8px;
    border: 1px solid var(--card-border);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
}

.step img:hover {
    transform: scale(1.4);
    z-index: 10;
    position: relative;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8);
}

footer {
    text-align: center;
    margin-top: 4rem;
    color: #64748b;
    font-weight: 600;
}

/* Responsive */
@media (min-width: 768px) {
    .step {
        align-items: center;
    }
    
    .step-text {
        text-align: center;
        max-width: 800px;
    }

    .step img {
        width: 100%;
        max-width: 900px;
        margin-top: 1rem;
    }
}