.bt-header,
.bt-header * {
    box-sizing: border-box;
}
.bt-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
    background: #03373e;
    border-bottom: 1px solid #e6ecec;
    font-family: 'Inter', sans-serif;
    padding: 16px 0;
}
.bt-header ul {
    list-style: none;
    margin: 0;
    padding: 0;
}
.bt-header a {
    text-decoration: none;
}
.bt-header__inner {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    padding: 0 12px;
}
.bt-header__logo img {
    width: 228px;
    display: block;
}
.bt-header__collapse {
    display: flex;
    align-items: center;
    flex: 1;
}
.bt-header__nav {
    display: flex;
    align-items: center;
    margin-left: auto !important;
}
.bt-header__nav a {
    display: block;
    color: #e2e2e2;
    font-size: 16px;
    font-weight: 400;
    padding: 8px;
    margin: 0 .4rem;
    transition: color .2s;
}
.bt-header__nav a:hover,
.bt-header__nav a.is-active {
    color: #f5b301;
}
.bt-header__btns {
    display: flex;
    align-items: center;
    gap: 8px;
}
.bt-btn {
    display: inline-block;
    border-radius: 999px;
    padding: .5rem 1.4rem;
    font-size: 16px;
    font-weight: 600;
    line-height: 1.5;
    border: 1px solid transparent;
    transition: all .25s ease;
    white-space: nowrap;
}
.bt-btn--outline {
    color: #fff !important;
    border-color: #17c1f2;
}
.bt-btn--outline:hover {
    background: #17c1f2;
    color: #000 !important;
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(3, 47, 53, .25);
}
.bt-btn--primary {
    color: #fff !important;
    background: linear-gradient(90deg, #027798, #6956a1);
    border-color: #17c1f2;
}
.bt-btn--primary:hover {
    background: #2682bb;
    border-color: #2682bb;
    color: #000 !important;
    transform: translateY(-2px);
}
.bt-dropdown {
    position: relative;
}
.bt-dropdown__menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 210px;
    padding: 10px 0 !important;
    background: #fff;
    border-bottom: 4px solid #f47c48;
    border-radius: 4px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, .15);
    z-index: 1001;
}
.bt-dropdown.is-open .bt-dropdown__menu {
    display: block;
}
.bt-dropdown__menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    color: #333;
    font-size: 15px;
}
.bt-dropdown__menu a:hover {
    background: #f5f7fa;
    color: #03373e;
}
.bt-header__toggler {
    display: none;
    margin-left: auto;
    background: transparent;
    border: 1px solid #fff;
    border-radius: 6px;
    padding: 8px 10px;
    cursor: pointer;
}
.bt-header__toggler span {
    display: block;
    width: 22px;
    height: 2px;
    background: #fff;
    margin: 4px 0;
}

@media (min-width: 992px) {
    .bt-dropdown:hover .bt-dropdown__menu {
        display: block;
    }
}
@media (max-width: 1400px) {
    .bt-header__logo img { width: 180px; }
    .bt-header__nav a { margin: 0; font-size: 13px; }
    .bt-btn { padding: 7px 12px; font-size: 13px; }
}
@media (max-width: 1200px) {
    .bt-header__logo img { width: 170px; }
    .bt-header__nav a { font-size: 12px; }
    .bt-btn { font-size: 12px; }
}
@media (max-width: 991px) {
    .bt-header__toggler { display: block; }
    .bt-header__collapse {
        display: none;
        flex: 0 0 100%;
        flex-direction: column;
        align-items: stretch;
        margin-top: 12px;
        background: #022c32;
        padding: 10px 12px 20px;
        border-radius: 15px;
    }
    .bt-header.is-open .bt-header__collapse { display: flex; }
    .bt-header__nav {
        flex-direction: column;
        align-items: stretch;
        margin: 0 0 20px !important;
    }
    .bt-header__nav a {
        font-size: 12px;
        padding: 10px 13px;
        margin: 2px 0;
        border-bottom: 1px solid #004a4c;
    }
    .bt-header__btns { flex-wrap: wrap; }
}
@media (max-width: 564px) {
    .bt-header__logo img { width: 150px; }
}
@media (max-width: 400px) {
    .bt-header__btns .bt-btn,
    .bt-dropdown { width: 100%; text-align: center; }
}