.modal.show {
    opacity: 1 !important;
}
.modal.show .modal-dialog {
    transform: none !important;
    margin-top: 160px;
}

.modal-backdrop {
    position: fixed;
    top: 0; left: 0;
    z-index: 1040;
    width: 100vw;
    height: 100vh;
    background-color: #000;
}
.modal-backdrop.fade { opacity: 0; }
.modal-backdrop.show { opacity: .5; }




/* ==================== TOOLTIP (BS4 JS + BS3 CSS) ==================== */
.tooltip {
    position: absolute;
    z-index: 1070;
    display: block;
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;             /* было 0.875rem (14px) — ок, но можно 13-15px */
    line-height: 1.4;
    text-align: left;
    word-wrap: break-word;
    opacity: 0;
}
.tooltip.show {
    opacity: 1;                  /* было 0.9 — теперь полностью непрозрачный */
}
.tooltip .arrow {
    position: absolute;
    display: block;
    width: 12px;                 /* стрелка шире — заметнее */
    height: 6px;
}
.tooltip .arrow::before {
    position: absolute;
    content: "";
    border-color: transparent;
    border-style: solid;
}
.tooltip .tooltip-inner {
    max-width: 320px;            /* было 200px — длинные тексты не будут переноситься так часто */
    padding: 8px 12px;           /* было 4px 8px — больше «воздуха» вокруг текста */
    color: #fff;
    text-align: center;
    background-color: #000;
    border-radius: 6px;          /* было 4px — заметные скругления */
    font-size: 14px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);   /* мягкая тень — «облачность» */
}

/* Направления стрелки */
.tooltip.bs-tooltip-top .arrow::before,
.tooltip.bs-tooltip-auto[x-placement^="top"] .arrow::before {
    top: 0;
    border-width: 6px 6px 0;
    border-top-color: #000;
}
.tooltip.bs-tooltip-bottom .arrow::before,
.tooltip.bs-tooltip-auto[x-placement^="bottom"] .arrow::before {
    bottom: 0;
    border-width: 0 6px 6px;
    border-bottom-color: #000;
}
.tooltip.bs-tooltip-left .arrow::before,
.tooltip.bs-tooltip-auto[x-placement^="left"] .arrow::before {
    left: 0;
    border-width: 6px 0 6px 6px;
    border-left-color: #000;
}
.tooltip.bs-tooltip-right .arrow::before,
.tooltip.bs-tooltip-auto[x-placement^="right"] .arrow::before {
    right: 0;
    border-width: 6px 6px 6px 0;
    border-right-color: #000;
}





/* ==================== POPOVER (BS4 JS + BS3 CSS) ==================== */
.popover {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1060;
    display: block;
    max-width: 276px;
    font-family: inherit;
    font-size: 0.875rem;
    line-height: 1.5;
    text-align: left;
    word-wrap: break-word;
    background-color: #fff;
    background-clip: padding-box;
    border: 1px solid rgba(0, 0, 0, 0.2);
    border-radius: 0.3rem;
}
.popover .arrow {
    position: absolute;
    display: block;
    width: 1rem;
    height: 0.5rem;
    margin: 0 0.3rem;
}
.popover .arrow::before,
.popover .arrow::after {
    position: absolute;
    display: block;
    content: "";
    border-color: transparent;
    border-style: solid;
}
.popover-header {
    padding: 0.5rem 0.75rem;
    margin-bottom: 0;
    font-size: 1rem;
    background-color: #f7f7f7;
    border-bottom: 1px solid #ebebeb;
    border-top-left-radius: calc(0.3rem - 1px);
    border-top-right-radius: calc(0.3rem - 1px);
}
.popover-header:empty {
    display: none;
}
.popover-body {
    padding: 0.5rem 0.75rem;
    color: #212529;
}




/* Направления стрелки */
.popover.bs-popover-top,
.popover.bs-popover-auto[x-placement^="top"] {
    margin-bottom: 0.5rem;
}
.popover.bs-popover-top .arrow::before,
.popover.bs-popover-auto[x-placement^="top"] .arrow::before {
    bottom: 0;
    border-width: 0.5rem 0.5rem 0;
    border-top-color: rgba(0, 0, 0, 0.25);
}
.popover.bs-popover-top .arrow::after,
.popover.bs-popover-auto[x-placement^="top"] .arrow::after {
    bottom: 1px;
    border-width: 0.5rem 0.5rem 0;
    border-top-color: #fff;
}

.popover.bs-popover-bottom,
.popover.bs-popover-auto[x-placement^="bottom"] {
    margin-top: 0.5rem;
}
.popover.bs-popover-bottom .arrow::before,
.popover.bs-popover-auto[x-placement^="bottom"] .arrow::before {
    top: 0;
    border-width: 0 0.5rem 0.5rem 0.5rem;
    border-bottom-color: rgba(0, 0, 0, 0.25);
}
.popover.bs-popover-bottom .arrow::after,
.popover.bs-popover-auto[x-placement^="bottom"] .arrow::after {
    top: 1px;
    border-width: 0 0.5rem 0.5rem 0.5rem;
    border-bottom-color: #fff;
}

.popover.bs-popover-left,
.popover.bs-popover-auto[x-placement^="left"] {
    margin-right: 0.5rem;
}
.popover.bs-popover-left .arrow::before,
.popover.bs-popover-auto[x-placement^="left"] .arrow::before {
    right: 0;
    border-width: 0.5rem 0 0.5rem 0.5rem;
    border-left-color: rgba(0, 0, 0, 0.25);
}
.popover.bs-popover-left .arrow::after,
.popover.bs-popover-auto[x-placement^="left"] .arrow::after {
    right: 1px;
    border-width: 0.5rem 0 0.5rem 0.5rem;
    border-left-color: #fff;
}

.popover.bs-popover-right,
.popover.bs-popover-auto[x-placement^="right"] {
    margin-left: 0.5rem;
}
.popover.bs-popover-right .arrow::before,
.popover.bs-popover-auto[x-placement^="right"] .arrow::before {
    left: 0;
    border-width: 0.5rem 0.5rem 0.5rem 0;
    border-right-color: rgba(0, 0, 0, 0.25);
}
.popover.bs-popover-right .arrow::after,
.popover.bs-popover-auto[x-placement^="right"] .arrow::after {
    left: 1px;
    border-width: 0.5rem 0.5rem 0.5rem 0;
    border-right-color: #fff;
}

/* Фикс: BS4 JS добавляет .active на <a>, а BS3 CSS ждет его на <li> */
.nav-tabs > li > a.active {
    background-color: #fff;
    border: 1px solid #ddd;
    border-bottom-color: transparent;
    cursor: default;
}