/* Reset some default styles */
body,
h1,
h4,
h6,
input,
button,
table {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    box-sizing: border-box;
}

/* Body styling */
body {
    background-color: #f4f7fa;
    color: #333;
    padding: 20px;
}

/* Header styling */
.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #4a90e2;
    padding: 15px 25px;
    border-radius: 8px;
    margin-bottom: 30px;
}

.theheader {
    color: white;
    text-decoration: none;
    font-size: 1.5em;
    font-weight: bold;
}

.theheader:hover {
    text-decoration: underline;
}

/* Input section */
h4 {
    margin-bottom: 10px;
}

input {
    padding: 10px;
    margin-right: 10px;
    border: 1px solid #ccc;
    border-radius: 6px;
    width: 200px;
}

button {
    padding: 10px 20px;
    background-color: #4a90e2;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: bold;
}

button:hover {
    background-color: #357ab8;
}

/* Planner title */
h1 {
    margin: 30px 0 20px;
    font-size: 2em;
    color: #4a90e2;
}

/* Table styling */
table {
    width: 100%;
    border-collapse: collapse;
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

td {
    vertical-align: top;
    padding: 15px;
    width: 50%;
}

/* Time blocks */
td h6 {
    margin-bottom: 10px;
    padding: 8px;
    background-color: #e9eff5;
    border-radius: 5px;
    font-size: 0.95em;
}

/* Event blocks */
td h6[id] {
    background-color: #fff8dc;
    border: 1px solid #f0d98c;
    font-weight: normal;
    transition: background-color 0.3s ease;
}

td h6[id]:hover {
    background-color: #fff2b2;
}