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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #000000;
    background-color: #ffffff;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

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

.container {
    max-width: 600px;
    width: 100%;
    text-align: center;
    padding: 2rem 0;
}

.logo-section {
    margin-bottom: 0;
}

.logo {
    display: inline-block;
}

.logo-image {
    max-width: 400px;
    width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

.content {
    max-width: 500px;
    margin: 0 auto;
}

.main-headline {
    font-size: 2.25rem;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: #000000;
}

.sub-headline {
    font-size: 1.25rem;
    font-weight: 400;
    line-height: 1.4;
    margin-bottom: 1.5rem;
    color: #000000;
    opacity: 0.9;
}

.description {
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.6;
    margin-bottom: 2.5rem;
    color: #000000;
    opacity: 0.8;
}

.form-container {
    margin-bottom: 2rem;
}

.signup-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-group {
    position: relative;
}

.form-input {
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
    font-family: inherit;
    border: 2px solid #000000;
    background-color: #ffffff;
    color: #000000;
    border-radius: 0;
    transition: all 0.2s ease;
    outline: none;
}

.form-input:focus {
    border-color: #000000;
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.1);
}

.form-input::placeholder {
    color: rgba(0, 0, 0, 0.5);
}

.form-input.error {
    border-color: #dc2626;
}

.error-message {
    color: #dc2626;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    text-align: left;
    min-height: 1.25rem;
}

.submit-btn {
    width: 100%;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    font-family: inherit;
    background-color: #000000;
    color: #ffffff;
    border: 2px solid #000000;
    border-radius: 0;
    cursor: pointer;
    transition: all 0.2s ease;
    outline: none;
}

.submit-btn:hover {
    background-color: #ffffff;
    color: #000000;
    transform: translateY(-1px);
}

.submit-btn:active {
    transform: translateY(0);
}

.submit-btn:focus {
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.2);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.launch-note {
    font-size: 0.875rem;
    color: #000000;
    opacity: 0.6;
    font-weight: 400;
}

.thank-you-container {
    text-align: center;
}

.thank-you-message h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #000000;
}

.thank-you-message p {
    font-size: 1rem;
    margin-bottom: 0.75rem;
    color: #000000;
    opacity: 0.8;
}

.thank-you-message .launch-note {
    margin-top: 1rem;
}

@media (max-width: 768px) {
    body {
        padding: 0.5rem;
    }
    .container {
        padding: 1rem 0;
    }
    .main-headline {
        font-size: 1.875rem;
        margin-bottom: 1.25rem;
    }
    .sub-headline {
        font-size: 1.125rem;
        margin-bottom: 1.25rem;
    }
    .description {
        font-size: 0.9375rem;
        margin-bottom: 2rem;
    }
    .form-input,
    .submit-btn {
        padding: 0.875rem;
        font-size: 0.9375rem;
    }
}

@media (max-width: 480px) {
    .container {
        max-width: 100%;
    }
    .main-headline {
        font-size: 1.625rem;
        line-height: 1.3;
    }
    .sub-headline {
        font-size: 1rem;
    }
    .description {
        font-size: 0.875rem;
    }
}

.form-container,
.thank-you-container {
    transition: opacity 0.3s ease, transform 0.3s ease;
}

*:focus {
    outline: 2px solid #000000;
    outline-offset: 2px;
}

.form-input:focus,
.submit-btn:focus {
    outline: none;
}

@media (prefers-contrast: high) {
    .form-input,
    .submit-btn {
        border-width: 3px;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    html {
        scroll-behavior: auto;
    }
}