:root {
    --bs-body-font-size: 1rem;
}

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

body {
    margin: 0;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    width: 100%;
    padding-right: 15px;
    padding-left: 15px;
    margin-right: auto;
    margin-left: auto;
}

@media (min-width: 576px) {
    .container {
        max-width: 540px;
    }
}

@media (min-width: 768px) {
    .container {
        max-width: 720px;
    }
}

@media (min-width: 992px) {
    .container {
        max-width: 960px;
    }
}

@media (min-width: 1200px) {
    .container {
        max-width: 1140px;
    }
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin-right: -15px;
    margin-left: -15px;
}

[class^="col-"],
[class*=" col-"] {
    position: relative;
    width: 100%;
    padding-right: 15px;
    padding-left: 15px;
}

.col-md-4 { width: 100%; }
.col-md-6 { width: 100%; }
.col-md-10 { width: 100%; }
.col-lg-8 { width: 100%; }
.col-md-4.mx-auto,
.col-md-6.mx-auto,
.col-md-10.mx-auto,
.col-lg-8.mx-auto { margin-left: auto; margin-right: auto; }

@media (min-width: 768px) {
    .col-md-4 { width: 33.3333%; }
    .col-md-6 { width: 50%; }
    .col-md-10 { width: 83.3333%; }
}

@media (min-width: 992px) {
    .col-lg-8 { width: 66.6667%; }
}

.text-center { text-align: center; }
.text-muted { color: rgba(0, 0, 0, 0.6); }
.lead { font-size: 1.1rem; font-weight: 400; }
.small { font-size: 0.875rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 3rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }
.mx-auto { margin-left: auto; margin-right: auto; }

.d-flex { display: flex; }
.flex-column { flex-direction: column; }
.flex-md-row { flex-direction: column; }
.align-items-center { align-items: center; }
.justify-content-center { justify-content: center; }
.gap-3 { gap: 1rem; }

@media (min-width: 768px) {
    .flex-md-row { flex-direction: row; }
}

.btn {
    display: inline-block;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    user-select: none;
    border: 1px solid transparent;
    padding: 0.75rem 1.5rem;
    font-size: var(--bs-body-font-size);
    line-height: 1.5;
    border-radius: 0.5rem;
    transition: all 0.2s ease-in-out;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    border-radius: 0.4rem;
}

.img-fluid {
    max-width: 100%;
    height: auto;
}

.rounded {
    border-radius: 0.5rem;
}

.ratio {
    position: relative;
    width: 100%;
}

.ratio-16x9 {
    padding-bottom: 56.25%;
}

.ratio > iframe,
.ratio > video,
.ratio > .ratio-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.w-100 { width: 100%; }
.h-100 { height: 100%; }