:root {
    --color-white: #ffffff;
    --color-bg: #ffffff;
    --color-input-bg: #f9fafb;
    --color-text-main: #111827;
    --color-text-muted: #6b7280;
    --color-primary: #3151d3;
    --color-primary-hover: #2541b3;
    --font-family: 'Inter', sans-serif;
    --shadow-main: 0px 20px 30px 0px rgba(0, 0, 0, 0.03), 0px 8px 12px 0px rgba(0, 0, 0, 0.08);
}

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

body {
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 24px;
    line-height: 1.5;
}

.newsletter-wrapper {
    width: 100%;
    max-width: 800px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.logo-icon {
    width: 44px;
    height: 44px;
    margin-bottom: 24px;
}

.title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -0.03em;
}

.description {
    color: var(--color-text-muted);
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 40px;
    max-width: 580px;
    margin-left: auto;
    margin-right: auto;
}

.form-container {
    background-color: var(--color-white);
    padding: 40px;
    box-shadow: var(--shadow-main);
    width: 100%;
    max-width: 520px;
    border-radius: 20px;
}

.subscription-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

input[type="email"] {
    width: 100%;
    padding: 18px;
    border: 1px solid #e5e7eb;
    background-color: var(--color-input-bg);
    border-radius: 12px;
    font-family: inherit;
    font-size: 1rem;
    text-align: center;
    outline: none;
}

.btn-subscribe {
    width: 100%;
    padding: 18px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease;
}

.privacy-notice {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.author-info {
    margin-top: 64px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* MOBILE EXACT MATCH (412px design) */
@media (max-width: 480px) {
    .title {
        font-size: 2rem;
    }
    
    .description {
        font-size: 1rem;
        /* Forces line 1: Keep up...offers! / Line 2: We introduce...stay tuned to / Line 3: snag...you. */
        max-width: 35ch; 
    }

    .form-container {
        padding: 32px 24px;
    }

    .privacy-notice {
        text-align: left; 
        /* Match specific break: 'you any spam.' on line 2 */
        max-width: 28ch; 
        margin: 0 auto;
        line-height: 1.4;
    }
}