:root {
    --primary-blue: #005A9C;
    --accent-teal: #4DBAC3;
    --dark-text: #333333;
    --white: #FFFFFF;
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--white);
    background: linear-gradient(180deg, #4A90E2 0%, #005A9C 100%);
    line-height: 1.6;
    text-align: center;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 0 20px;
}

img {
    max-width: 100%;
    height: auto;
}

section {
    padding: 40px 0;
}

h1, h2, h3 {
    color: var(--white);
}

h1 {
    font-size: 2.5rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
}

h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.header {
    padding: 20px 0;
    background-color: transparent;
}

.logo {
    width: 180px;
}

.hero {
    padding-top: 20px;
}

.sub-headline {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}

.hero-image {
    max-width: 350px;
    margin-top: 2rem;
    margin-bottom: 2rem;
}

.cta-button {
    display: inline-block;
    background-color: var(--white);
    color: var(--primary-blue);
    font-size: 1.25rem;
    font-weight: 700;
    text-decoration: none;
    padding: 18px 40px;
    border-radius: 50px; /* Pill shape */
    text-transform: uppercase;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.urgency-text {
    margin-top: 1rem;
    font-weight: 700;
    color: var(--white);
    opacity: 0.8;
}

.features {
    background-color: transparent;
}

.features-grid {
    display: grid;
    gap: 25px;
}

.feature-card {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 25px;
    border-radius: 16px;
    backdrop-filter: blur(5px);
}

.feature-icon {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 60px;
    height: 60px;
    background-color: rgba(255, 255, 255, 0.2);
    color: var(--white);
    border-radius: 50%;
    margin-bottom: 1rem;
}

.feature-icon svg {
    width: 32px;
    height: 32px;
    stroke: var(--white);
}

.how-to-unlock {
    padding: 40px 0;
}

.steps-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.step-number {
    width: 40px;
    height: 40px;
    border: 2px solid var(--white);
    color: var(--white);
    font-weight: 700;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.step p {
    font-weight: 700;
}

.step-arrow {
    font-size: 2rem;
    color: var(--white);
    opacity: 0.7;
    transform: rotate(90deg);
}

.compatibility {
    background-color: rgba(0, 0, 0, 0.1);
    padding: 30px 0;
}

.compatibility .container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
}

.os-logo {
    height: 45px;
    width: 45px;
    border-radius: 8px;
    object-fit: contain;
}

.final-cta {
    padding: 50px 0;
}

.footer {
    background-color: #1a1a1a;
    color: #ccc;
    padding: 25px 0;
    font-size: 0.8rem;
}

.footer p {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
}

.footer-links a:hover {
    text-decoration: underline;
}

/* Desktop Styles */
@media (min-width: 500px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .steps-container {
        flex-direction: row;
        justify-content: center;
    }
    
    .step-arrow {
        transform: rotate(0deg);
    }
}