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

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background-color: #f4f6f8;
    color: #333;
}

.navbar {
    background-color: #2c7a4b;
    color: white;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-size: 1.4rem;
    font-weight: bold;
}

.nav-links a {
    color: white;
    text-decoration: none;
    margin-left: 1.5rem;
}

.nav-links a:hover {
    text-decoration: underline;
}

.nav-user {
    margin-left: 1.5rem;
    opacity: 0.9;
}

.container {
    max-width: 900px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.flash {
    background-color: #fff3cd;
    border: 1px solid #ffc107;
    padding: 0.8rem 1rem;
    border-radius: 6px;
    margin-bottom: 1rem;
}

h1 {
    margin-bottom: 1.5rem;
    color: #2c7a4b;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 4px rgba(0,0,0,0.1);
}

th, td {
    padding: 0.8rem 1rem;
    text-align: left;
    border-bottom: 1px solid #eee;
}

th {
    background-color: #e8f5e9;
}

.btn {
    display: inline-block;
    background-color: #2c7a4b;
    color: white;
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: 6px;
    text-decoration: none;
    cursor: pointer;
    font-size: 0.95rem;
}

.btn:hover {
    background-color: #25623c;
}

.btn-small {
    padding: 0.3rem 0.7rem;
    font-size: 0.85rem;
    margin-right: 0.3rem;
}

.btn-danger {
    background-color: #c0392b;
}

.btn-danger:hover {
    background-color: #a02c20;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.4rem;
    font-weight: 600;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.6rem;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 1rem;
    font-family: inherit;
}

.form-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.1);
    max-width: 450px;
}

.expiring {
    color: #c0392b;
    font-weight: bold;
}

.toolbar {
    margin-bottom: 1rem;
}