.app-tab-bar {
    position: absolute;
    z-index: 200;
    left: 0;
    right: 0;
    bottom: 0;
    height: 55px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-top: 1px solid #ececec;
    background: rgba(255, 255, 255, .98);
    backdrop-filter: blur(12px);
}

.app-tab {
    min-width: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    padding: 3px 0 2px;
    border: 0;
    background: transparent;
    color: #a9a9a9;
    font-family: inherit;
    font-size: 10px;
    line-height: 1.1;
    cursor: pointer;
}

.app-tab.active {
    color: #ff3038;
}

.app-tab-icon {
    position: relative;
    display: block;
    width: 25px;
    height: 25px;
    color: currentColor;
}

.app-home-icon {
    width: 28px;
    border-radius: 7px 7px 4px 4px;
    background: currentColor;
    clip-path: polygon(50% 0, 100% 35%, 100% 100%, 0 100%, 0 35%);
}

.app-home-icon::after {
    content: "";
    position: absolute;
    left: 10px;
    bottom: 3px;
    width: 8px;
    height: 3px;
    border-radius: 99px;
    background: #fff;
}

.app-shop-icon {
    margin-top: 5px;
    height: 20px;
    border-radius: 2px 2px 5px 5px;
    background: currentColor;
}

.app-shop-icon::before {
    content: "";
    position: absolute;
    left: -2px;
    top: -7px;
    width: 29px;
    height: 9px;
    border-radius: 2px 2px 8px 8px;
    background: repeating-linear-gradient(90deg, currentColor 0 5px, #fff 5px 7px);
}

.app-book-icon {
    width: 26px;
    border: 2px solid currentColor;
    border-radius: 3px;
}

.app-book-icon::before {
    content: "";
    position: absolute;
    left: -5px;
    top: 3px;
    width: 5px;
    height: 3px;
    border-top: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    box-shadow: 0 7px 0 currentColor, 0 14px 0 currentColor;
}

.app-book-icon::after {
    content: "×";
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    font-size: 20px;
    font-weight: 500;
    line-height: 1;
}

.app-person-icon::before {
    content: "";
    position: absolute;
    left: 7px;
    top: 0;
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background: currentColor;
}

.app-person-icon::after {
    content: "";
    position: absolute;
    left: 2px;
    bottom: 0;
    width: 25px;
    height: 11px;
    border-radius: 12px 12px 3px 3px;
    background: currentColor;
}