:root {
    --primary-color: #1a73e8;
    --secondary-color: #5f6368;
    --border-color: #e0e0e0;
    --background-color: #f8f9fa;
}

body {
    background-color: var(--background-color);
    font-family: 'Roboto', sans-serif;
}

.navbar {
    background-color: white;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
}

.navbar-brand {
    color: var(--primary-color);
    font-weight: 500;
    font-size: 1.5rem;
}

.navbar-brand i {
    margin-right: 0.5rem;
}

.email-box {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
}

.email-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.email-header h2 {
    font-size: 1.25rem;
    margin: 0;
    color: var(--secondary-color);
}

.email-actions {
    display: flex;
    gap: 0.5rem;
}

.email-address {
    margin-bottom: 1rem;
}

.email-address input {
    font-size: 1.2rem;
    padding: 1rem;
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    color: var(--primary-color);
}

.email-info {
    color: var(--secondary-color);
    font-size: 0.9rem;
}

.inbox-box {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.inbox-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.inbox-header h3 {
    font-size: 1.1rem;
    margin: 0;
    color: var(--secondary-color);
}

.inbox-content {
    min-height: 400px;
}

.list-group-item {
    border: none;
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

.list-group-item:hover {
    background-color: var(--background-color);
}

.list-group-item .email-subject {
    color: var(--secondary-color);
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.list-group-item .email-meta {
    font-size: 0.9rem;
    color: var(--secondary-color);
}

#emptyInbox {
    color: var(--secondary-color);
}

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    color: white;
}

.btn-outline-secondary {
    color: var(--secondary-color);
    border-color: var(--border-color);
}

.modal-content {
    border-radius: 8px;
}

.modal-header {
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
}

.modal-body {
    padding: 1.5rem;
}

#emailContent {
    white-space: pre-wrap;
    font-family: monospace;
    background-color: var(--background-color);
    padding: 1rem;
    border-radius: 4px;
}