@font-face {
    font-family: "Contact Nunito";
    src: url("../fonts/Nunito-Bold.ttf") format("truetype");
    font-display: swap;
    font-style: normal;
    font-weight: 700;
}

.contact-rail {
    --contact-accent: #243b83;
    --contact-accent-dark: #3f66f0;
    --contact-glow: rgba(20, 33, 79, 0.38);
    position: fixed;
    right: 8px;
    bottom: calc(96px + env(safe-area-inset-bottom, 0px));
    z-index: 9999;
    display: block;
    width: 172px;
    text-align: center;
}

.contact-rail__actions {
    position: absolute;
    top: 0;
    right: 0;
    display: flex;
    width: 172px;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    filter: blur(1px) contrast(150%);
    opacity: 0;
    pointer-events: none;
    transform: translateY(5%) scale(0.95) rotate(1deg);
    transform-origin: bottom center;
    visibility: hidden;
    transition:
        filter 450ms ease,
        opacity 450ms ease,
        transform 450ms ease,
        visibility 0s linear 450ms;
}

.contact-rail.is-open > .contact-rail__actions {
    filter: none;
    opacity: 1;
    pointer-events: auto;
    transform: translateY(calc(-100% - 16px)) scale(1) rotate(0deg);
    visibility: visible;
    transition-delay: 0s;
}

.contact-rail__item {
    --contact-accent: #0878ee;
    --contact-accent-dark: #0057bd;
    --contact-glow: rgba(8, 120, 238, 0.3);

    position: relative;
    display: flex;
    width: 112px;
    flex-direction: column;
    align-items: center;
    color: #fff;
    text-decoration: none;
    transition: transform 180ms ease;
}

.contact-rail__item:hover {
    color: #fff;
    text-decoration: none;
    transform: translateX(-7px) scale(1.04);
}

.contact-rail__item:active {
    transform: translateX(-4px) scale(0.98);
}

.contact-rail__item:focus-visible {
    border-radius: 18px;
    outline: 3px solid var(--contact-accent);
    outline-offset: 4px;
}

.contact-rail__icon {
    display: flex;
    width: 88px;
    height: 88px;
    align-items: center;
    justify-content: center;
    transition: transform 180ms ease;
}

.contact-rail__item:hover .contact-rail__icon {
    transform: translateY(-3px);
}

.contact-rail__icon img {
    display: block;
    width: 68px;
    height: 68px;
    object-fit: contain;
}

.contact-rail__label {
    appearance: none;
    position: relative;
    z-index: 1;
    display: flex;
    width: 172px;
    min-height: 76px;
    align-items: center;
    justify-content: center;
    margin: 0;
    padding: 8px 14px 9px 84px;
    border: 3px solid #fff;
    border-radius: 999px;
    background: linear-gradient(145deg, var(--contact-accent), var(--contact-accent-dark));
    box-shadow:
        0 4px 0 var(--contact-accent-dark),
        0 9px 18px var(--contact-glow);
    color: #fff;
    cursor: pointer;
    font-family: "Contact Nunito", "Segoe UI", Arial, sans-serif;
    font-size: 15px;
    font-weight: 700;
    line-height: 1.2;
    list-style: none;
    text-align: center;
    text-shadow: 0 1px 2px rgba(0, 43, 95, 0.35);
    transition: transform 180ms ease;
}

.contact-rail__label:hover {
    color: #fff;
    transform: translateX(-5px) scale(1.03);
}

.contact-rail__label:active {
    transform: translateX(-3px) scale(0.98);
}

.contact-rail__label:focus-visible {
    outline: 3px solid var(--contact-accent);
    outline-offset: 4px;
}

.contact-rail__bunny {
    position: absolute;
    top: 50%;
    left: 4px;
    z-index: 2;
    display: block;
    width: 76px;
    height: 76px;
    object-fit: contain;
    transform: translateY(-50%);
}

.contact-rail__label-text {
    position: relative;
    z-index: 1;
}

.contact-rail__item--zalo {
    --contact-accent: #0d8bff;
    --contact-accent-dark: #0068df;
    --contact-glow: rgba(13, 139, 255, 0.34);
}

.contact-rail__item--facebook {
    --contact-accent: #318cf4;
    --contact-accent-dark: #1264c4;
    --contact-glow: rgba(24, 119, 242, 0.34);
}

.contact-rail__item--call {
    --contact-accent: #ff7855;
    --contact-accent-dark: #df4938;
    --contact-glow: rgba(255, 105, 75, 0.36);
}

@media (min-width: 576px) {
    .contact-rail {
        right: 0;
        bottom: 200px;
        width: 260px;
    }

    .contact-rail__actions,
    .contact-rail__label {
        width: 260px;
    }

    .contact-rail__label {
        font-size: 22.5px;
        white-space: nowrap;
    }
}

@media (prefers-reduced-motion: reduce) {
    .contact-rail__actions,
    .contact-rail__item,
    .contact-rail__icon,
    .contact-rail__label {
        transition: none;
    }
}