:root {
    --dark-bg: #111;
    --light-text: #f0f0f0;
    --button-bg: #e0e0e0;
    --secondary-button-bg: #222;
    --button-text-color: #333;
    --illustration-circle: #e8d7c8;
    --illustration-shirt: #4a916e;
}

/* Base styles and font import */
body {
    margin: 0;
    font-family: 'Poppins', sans-serif;
    background-color: var(--dark-bg);
    color: var(--light-text);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    text-align: center;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    padding: 2rem;
    max-width: 400px; /* Constrains the UI width on larger screens */
    width: 100%;
    box-sizing: border-box;
    height: 100vh; /* Takes full viewport height on mobile */
}

/* Illustration section */
.illustration-container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-grow: 1; /* Pushes other elements down */
    width: 100%;
}

.illustration-circle {
    width: 200px;
    height: 200px;
    background-color: var(--illustration-circle);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    overflow: hidden;
}

.illustration-image {
    width: 150%;
    height: 150%;
    object-fit: contain;
    transform: translateY(20px);
}

/* Text content */
.text-content {
    margin-bottom: 2rem;
    text-align: left;
    width: 100%;
}

.main-heading {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin: 0;
}

.sub-heading {
    font-size: 1rem;
    font-weight: 400;
    opacity: 0.8;
}

/* Buttons */
.button-container {
    width: 100%;
}

.main-button {
    width: 100%;
    padding: 1rem 1.5rem;
    margin-top: 1rem;
    border-radius: 999px;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
}

.main-button:hover {
    transform: translateY(-2px);
}

#signInButton {
    background-color: var(--button-bg);
    color: var(--button-text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
}

.secondary-button {
    background-color: var(--secondary-button-bg);
    color: var(--light-text);
}