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

body {
    font-family: system-ui, -apple-system, sans-serif;
    background: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: #1a1a2e;
    color: #fff;
}

nav .logo {
    font-size: 1.3rem;
    font-weight: bold;
    color: #e0c097;
    text-decoration: none;
}

nav div a {
    color: #ccc;
    text-decoration: none;
    margin-left: 1.5rem;
}

nav div a:hover { color: #fff; }

main {
    max-width: 500px;
    margin: 3rem auto;
    padding: 2rem;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

h1 { margin-bottom: 1rem; color: #1a1a2e; }
h2 { margin: 1rem 0 0.5rem; color: #1a1a2e; font-size: 1.1rem; }

section {
    padding: 1rem 0;
    border-bottom: 1px solid #eee;
}

section:last-child { border-bottom: none; }

form { display: flex; flex-direction: column; gap: 0.5rem; }

label { font-weight: 600; margin-top: 0.5rem; }

input {
    padding: 0.5rem;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 1rem;
}

.btn {
    display: inline-block;
    padding: 0.6rem 1.5rem;
    background: #1a1a2e;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    margin-top: 0.5rem;
}

.btn:hover { background: #16213e; }

.btn-secondary {
    background: #6c757d;
}

.btn-secondary:hover { background: #5a6268; }

.actions { display: flex; gap: 1rem; margin-top: 1rem; }

.success {
    margin-top: 1rem;
    padding: 0.75rem;
    background: #d4edda;
    color: #155724;
    border-radius: 4px;
}

.error {
    margin-top: 1rem;
    padding: 0.75rem;
    background: #f8d7da;
    color: #721c24;
    border-radius: 4px;
}

p { margin: 0.5rem 0; }

.btn-danger { background: #dc3545; }
.btn-danger:hover { background: #c82333; }

button:disabled { opacity: 0.6; cursor: not-allowed; }

.reading-card {
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    background: #fafafa;
}

.reading-card .reading-type {
    font-weight: bold;
    text-transform: uppercase;
    font-size: 0.8rem;
    color: #1a1a2e;
}

.reading-card .reading-date {
    font-size: 0.8rem;
    color: #888;
}

.reading-content {
    white-space: pre-wrap;
    margin-top: 0.5rem;
    font-size: 0.9rem;
}