.ttez-nav-back {
    position: fixed;
    z-index: 9998;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.ttez-nav-back.pos-bottom-right { right: 20px; bottom: 20px; align-items: flex-end; flex-direction: column-reverse; }
.ttez-nav-back.pos-bottom-left { left: 20px; bottom: 20px; align-items: flex-start; flex-direction: column-reverse; }
.ttez-nav-back.pos-top-right { right: 20px; top: 90px; align-items: flex-end; }
.ttez-nav-back.pos-top-left { left: 20px; top: 90px; align-items: flex-start; }
.ttez-nav-back.pos-middle-right { right: 20px; top: 50%; transform: translateY(-50%); align-items: flex-end; flex-direction: column-reverse; }
.ttez-nav-back.pos-middle-left { left: 20px; top: 50%; transform: translateY(-50%); align-items: flex-start; flex-direction: column-reverse; }
.ttez-nav-back.pos-bottom-center { left: 50%; bottom: 20px; transform: translateX(-50%); align-items: center; flex-direction: column-reverse; }
.ttez-nav-back.pos-top-center { left: 50%; top: 90px; transform: translateX(-50%); align-items: center; }

.ttez-nav-row { display: flex; align-items: stretch; gap: 4px; }

.ttez-nav-back.ttez-nav-inline {
    position: relative;
    transform: none;
    display: inline-flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin: 12px 0;
    z-index: auto;
}
.ttez-nav-back.ttez-nav-inline .ttez-nav-menu {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    z-index: 9998;
}
.ttez-nav-btn i, .ttez-nav-cartbtn i { font-size: 1em; line-height: 1; flex: none; }

.ttez-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--ttez-nav-bg, #1f2937);
    color: var(--ttez-nav-text, #ffffff);
    border: none;
    border-radius: 999px;
    padding: 11px 18px;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.2;
    cursor: pointer;
    text-decoration: none;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
    font-family: inherit;
}
.ttez-nav-btn:hover { background: var(--ttez-nav-bg-h, var(--ttez-nav-bg, #1f2937)); color: var(--ttez-nav-text-h, var(--ttez-nav-text, #ffffff)); }
.ttez-nav-btn svg { width: 18px; height: 18px; flex: none; }

.ttez-nav-caret {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--ttez-nav-bg, #1f2937);
    color: var(--ttez-nav-text, #ffffff);
    border: none;
    border-radius: 999px;
    width: 40px;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
}
.ttez-nav-caret:hover { background: var(--ttez-nav-bg-h, var(--ttez-nav-bg, #1f2937)); }
.ttez-nav-caret svg { width: 18px; height: 18px; }

.ttez-nav-menu {
    display: none;
    flex-direction: column;
    gap: 2px;
    background: #ffffff;
    border: 1px solid #e4e7ec;
    border-radius: 10px;
    padding: 6px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
    max-width: 340px;
}
.ttez-nav-menu.open { display: flex; }
.ttez-nav-menu-title {
    font-size: 11px;
    font-weight: 700;
    color: #6b7280;
    padding: 4px 12px 4px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.ttez-nav-menu a {
    display: block;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 13px;
    color: #1f2937;
    text-decoration: none;
}
.ttez-nav-menu a:hover { background: #f1f3f5; }

.ttez-nav-cartbtn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--ttez-nav-bg, #1f2937);
    color: var(--ttez-nav-text, #ffffff);
    border-radius: 7px;
    padding: 6px 12px;
    font-size: 12.5px;
    font-weight: 600;
    line-height: 1.3;
    text-decoration: none;
    margin: 6px 0;
}
.ttez-nav-cartbtn:hover { background: var(--ttez-nav-bg-h, var(--ttez-nav-bg, #1f2937)); color: var(--ttez-nav-text-h, var(--ttez-nav-text, #ffffff)); }
.ttez-nav-cartbtn svg { width: 15px; height: 15px; flex: none; }

@media (max-width: 640px) {
    .ttez-nav-back.pos-bottom-right,
    .ttez-nav-back.pos-bottom-center,
    .ttez-nav-back.pos-bottom-left { left: 12px; right: 12px; bottom: 12px; transform: none; align-items: center; }
    .ttez-nav-back.pos-top-center { left: 12px; right: 12px; top: 80px; transform: none; align-items: center; }
    .ttez-nav-btn { width: 100%; justify-content: center; }
}