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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: hsl(210, 20%, 98%);
    color: hsl(213, 27%, 14%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
}

.container {
    width: 100%;
    max-width: 36rem;
}

.content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.logo-container {
    display: flex;
    justify-content: center;
    margin-bottom: 2rem;
}

.logo {
    width: 55%;
    height: auto;
}

.header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.icon-box {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.linkedin-icon {
    height: 2.1rem;
    width: auto;
    object-fit: contain;
}

.header-text h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: hsl(213, 27%, 14%);
    line-height: 1.2;
}

.header-text p {
    font-size: 0.875rem;
    color: hsl(213, 10%, 45%);
    margin-top: 0.125rem;
}

.card {
    background: hsl(0, 0%, 100%);
    border: 1px solid hsl(214, 20%, 88%);
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

textarea {
    width: 100%;
    min-height: 240px;
    border: none;
    outline: none;
    resize: none;
    font-size: 1rem;
    line-height: 1.7;
    color: hsl(213, 27%, 14%);
    background: transparent;
    font-family: inherit;
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid hsl(214, 20%, 88%);
    padding-top: 1rem;
    margin-top: 1rem;
}

.char-count {
    font-size: 0.75rem;
    color: hsl(213, 10%, 45%);
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: hsl(201, 100%, 35%);
    color: white;
    border: none;
    border-radius: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

.share-btn:hover {
    background-color: hsl(201, 100%, 30%);
}

@media (max-width: 480px) {
    .share-btn {
        font-size: 0.85rem;
        padding: 0.5rem 1rem;
    }
    .header-text h1 {
        font-size: 1.25rem;
    }
}