/* =========================================================
   CONTACT DOCK - ONE TRIGGER / EXPANDABLE ACTIONS
========================================================= */

.contact-dock {
    position: fixed;
    z-index: 190;
    right: 20px;
    bottom: 24px;
}

.contact-dock__trigger,
.contact-dock__item {
    width: 54px;
    height: 54px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    text-decoration: none;
}

.contact-dock__trigger {
    position: relative;
    z-index: 3;
    border: 3px solid #fff;
    background: #1e73be;
    color: #fff;
    box-shadow:
        0 12px 30px rgba(18, 61, 107, .24),
        0 0 0 1px rgba(18, 61, 107, .08);
    cursor: pointer;
    transition:
        transform .2s ease,
        background-color .2s ease,
        box-shadow .2s ease;
}

.contact-dock__trigger>i {
    position: relative;
    z-index: 2;
    font-size: 21px;
}

.contact-dock__pulse {
    position: absolute;
    inset: -7px;
    z-index: 1;
    border: 2px solid rgba(30, 115, 190, .28);
    border-radius: inherit;
    animation: contactDockPulse 2.4s ease-out infinite;
    pointer-events: none;
}

.contact-dock__menu {
    position: absolute;
    right: 0;
    bottom: calc(100% + 12px);
    display: flex;
    flex-direction: column-reverse;
    gap: 9px;
    pointer-events: none;
}

.contact-dock__item {
    --contact-color: #1e73be;

    position: relative;
    border: 3px solid #fff;
    background: var(--contact-color);
    color: #fff;
    box-shadow: 0 10px 26px rgba(18, 61, 107, .18);

    opacity: 0;
    visibility: hidden;
    transform: translateY(12px) scale(.78);
    transform-origin: bottom center;

    transition:
        opacity .2s ease,
        visibility .2s ease,
        transform .22s cubic-bezier(.2, .8, .2, 1),
        box-shadow .2s ease;
}

.contact-dock__item>i {
    font-size: 20px;
}

.contact-dock__item--phone {
    --contact-color: #2387b3;
}

.contact-dock__item--zalo {
    --contact-color: #00a8e8;
    border-color: #00a8e8;
    background: #fff;
    color: #00a8e8;
}

.contact-dock__item--messenger {
    --contact-color: #0866ff;
}

.contact-dock__zalo-mark {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border: 1px solid currentColor;
    border-radius: 50%;
    font-size: 15px;
    font-weight: 900;
    line-height: 1;
}

.contact-dock__label {
    position: absolute;
    top: 50%;
    right: calc(100% + 10px);
    min-height: 36px;
    display: flex;
    align-items: center;
    padding: 7px 13px;
    border-radius: 999px;
    background: var(--contact-color);
    color: #fff;
    box-shadow: 0 10px 24px rgba(18, 61, 107, .16);
    font-size: 13px;
    font-weight: 750;
    line-height: 1.2;
    white-space: nowrap;

    opacity: 0;
    visibility: hidden;
    transform: translate(7px, -50%);
    pointer-events: none;

    transition:
        opacity .18s ease,
        visibility .18s ease,
        transform .18s ease;
}

.contact-dock__item--zalo .contact-dock__label {
    background: #00a8e8;
    color: #fff;
}

/* Desktop hover + keyboard focus + click state */
.contact-dock:hover .contact-dock__item,
.contact-dock:focus-within .contact-dock__item,
.contact-dock.is-open .contact-dock__item {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.contact-dock:hover .contact-dock__item:nth-child(1),
.contact-dock:focus-within .contact-dock__item:nth-child(1),
.contact-dock.is-open .contact-dock__item:nth-child(1) {
    transition-delay: 0ms;
}

.contact-dock:hover .contact-dock__item:nth-child(2),
.contact-dock:focus-within .contact-dock__item:nth-child(2),
.contact-dock.is-open .contact-dock__item:nth-child(2) {
    transition-delay: 45ms;
}

.contact-dock:hover .contact-dock__item:nth-child(3),
.contact-dock:focus-within .contact-dock__item:nth-child(3),
.contact-dock.is-open .contact-dock__item:nth-child(3) {
    transition-delay: 90ms;
}

.contact-dock__item:hover,
.contact-dock__item:focus-visible {
    transform: translateY(-2px) scale(1.06) !important;
    outline: none;
    box-shadow: 0 14px 32px rgba(18, 61, 107, .24);
}

.contact-dock__item:hover .contact-dock__label,
.contact-dock__item:focus-visible .contact-dock__label {
    opacity: 1;
    visibility: visible;
    transform: translate(0, -50%);
}

.contact-dock__trigger:hover,
.contact-dock__trigger:focus-visible,
.contact-dock.is-open .contact-dock__trigger {
    transform: scale(1.05);
    outline: none;
    background: #17639f;
    box-shadow:
        0 15px 34px rgba(18, 61, 107, .28),
        0 0 0 3px rgba(255, 255, 255, .9);
}

@keyframes contactDockPulse {
    0% {
        opacity: .85;
        transform: scale(.88);
    }

    70%,
    100% {
        opacity: 0;
        transform: scale(1.25);
    }
}

@media (max-width: 620px) {
    .contact-dock {
        right: 12px;
        bottom: calc(14px + env(safe-area-inset-bottom));
    }

    .contact-dock__trigger,
    .contact-dock__item {
        width: 50px;
        height: 50px;
    }

    .contact-dock__trigger {
        border-width: 2px;
    }

    .contact-dock__item {
        border-width: 2px;
    }

    .contact-dock__label {
        display: none;
    }

    .contact-dock__menu {
        gap: 7px;
        bottom: calc(100% + 9px);
    }
}

@media (prefers-reduced-motion: reduce) {
    .contact-dock__pulse {
        display: none;
    }

    .contact-dock__trigger,
    .contact-dock__item,
    .contact-dock__label {
        transition: none;
    }
}