:root {
    --bg-color: #FBF9F6;
    --accent-pink: #E5C1B8;
    --text-main: #1C1C1C;
    --border-color: #1C1C1C;
    --card-bg: #FFFFFF;
    --muted-text: #555555;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.5;
    padding: 2rem 1rem;
}

.container { 
    max-width: 900px; 
    margin: 0 auto; 
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 2rem;
    margin-bottom: 3rem;
    border-bottom: 1px solid var(--border-color);
}

.brand { 
    font-size: 1.25rem; 
    font-weight: 700; 
    text-decoration: none; 
    color: var(--text-main); 
    letter-spacing: -0.02em; 
}

nav { 
    display: flex; 
    align-items: center; 
    gap: 2rem; 
}

nav a { 
    text-decoration: none; 
    color: var(--text-main); 
    font-size: 0.95rem; 
}

nav a:hover { 
    opacity: 0.7; 
}

.btn-preview {
    background-color: var(--accent-pink);
    color: var(--text-main);
    padding: 0.6rem 1.2rem;
    border-radius: 4px;
    font-weight: 500;
    text-decoration: none;
    border: 1px solid var(--border-color);
    transition: opacity 0.2s;
}

.btn-preview:hover {
    opacity: 0.85;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--muted-text);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: inherit;
    font-size: 0.95rem;
}

.form-control:focus {
    outline: none;
    border-color: var(--text-main);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

@media (max-width: 768px) {
    nav {
        display: none;
    }
}