* {
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
body {
    background-color: #f4f6f9;
    margin: 0;
    padding: 20px;
    color: #333;
}
header {
    text-align: center;
    margin-bottom: 30px;
}
h1 {
    color: #2c3e50;
    margin-bottom: 10px;
}
.admin-link {
    display: inline-block;
    color: #3498db;
    text-decoration: none;
    font-weight: bold;
    margin-bottom: 20px;
}
.admin-link:hover { text-decoration: underline; }

.main-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
    max-width: 400px;
    margin: 0 auto 40px auto;
}
.btn {
    padding: 20px;
    font-size: 20px;
    font-weight: bold;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    color: white;
    transition: 0.2s;
}
.btn:active {
    transform: scale(0.98);
}
.btn-stay { background-color: #3498db; }
.btn-trip { background-color: #2ecc71; }
.btn-expense { background-color: #e74c3c; }
.btn-secondary { background-color: #95a5a6; padding: 10px 20px; font-size: 16px; margin-bottom: 15px; }

/* Modals */
.modal {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
}
.modal-content {
    background-color: #fff;
    margin: 2% auto; 
    padding: 20px;
    border-radius: 10px;
    width: 90%;
    max-width: 500px;
    position: relative;
    max-height: 95vh;
    overflow-y: auto;
}
.close {
    position: absolute;
    left: 20px;
    top: 15px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    color: #aaa;
}
.close:hover { color: black; }

form {
    display: grid;
    grid-template-columns: 100px 1fr;
    align-items: center;
    gap: 10px;
}
label {
    font-weight: bold;
    font-size: 14px;
    margin-top: 0;
}
input, select {
    padding: 8px;
    font-size: 14px;
    border: 1px solid #ccc;
    border-radius: 5px;
    width: 100%;
}
form > button {
    grid-column: 1 / -1; 
    margin-top: 10px;
    padding: 12px;
}
.today-section {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}
.today-data {
    margin-top: 20px;
}
.record-card {
    background: #fdfdfd;
    border: 1px solid #ddd;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 10px;
    border-right: 5px solid #ccc;
}
.record-card.stay { border-right-color: #3498db; }
.record-card.trip { border-right-color: #2ecc71; }
.record-card.expense { border-right-color: #e74c3c; }
.record-card p { margin: 5px 0; }