*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    font-family: var(--font-family-base);
    background: var(--light-gray);
    color: var(--black);
}

body {
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
    display: flex;
    min-height: 0;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Images */
img {
    max-width: 100%;
    display: block;
}

/* Main layout  */
.main-layout {
    display: flex;
    min-height: calc(100vh - var(--navbar-height));
}

/* Content */
.content {
    flex: 1;
    padding: 24px;
    overflow-x: auto;
}

/* Cards */
.card-sig {
    background: var(--background-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-gray);
    box-shadow: var(--shadow-sm);
    padding: 24px;
    margin-bottom: 24px;
}

/* Titles */
.section-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--primary);
}

/* Shared */
.flex {
    display: flex;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.flex-column {
    display: flex;
    flex-direction: column;
}

.gap-sm {
    gap: 8px;
}

.gap-md {
    gap: 16px;
}

.gap-lg {
    gap: 24px;
}

.w-100 {
    width: 100%;
}

.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.mt-1 {
    margin-top: 8px;
}

.mt-2 {
    margin-top: 16px;
}

.mt-3 {
    margin-top: 24px;
}

.mb-1 {
    margin-bottom: 8px;
}

.mb-2 {
    margin-bottom: 16px;
}

.mb-3 {
    margin-bottom: 24px;
}

.pt-1 {
   padding-top: 10px; 
}

/* Responsive */
@media (max-width: 992px) {

    .main-layout {
        flex-direction: column;
    }

    .content {
        padding: 16px;
    }

}

@media (max-width: 768px) {

    .card-sig {
        padding: 16px;
    }

}