:root {
    --blue-dark: #005F6A;
    --blue-soft: #0B3B44;
    --gold: #F2C14F;
    --white: #ffffff;
}

.footer {
    margin-top: 60px;
    background: linear-gradient(135deg, #0B3B44, #052026);
    color: #D1FAFF;
    padding: 30px 0 18px;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    align-items: flex-start;
    flex-wrap: wrap;
}

.footer-brand {
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 6px;
}

.footer-menu a {
    display: block;
    text-decoration: none;
    color: #D1FAFF;
    margin-bottom: 6px;
    font-size: 14px;
}

.footer-menu a:hover {
    color: var(--gold);
}

.footer-bottom {
    text-align: center;
    font-size: 13px;
    margin-top: 18px;
    opacity: 0.8;
}
/* ===========================
   MOBILE BOTTOM APP-STYLE
   =========================== */

/* ===== MOBILE NAV (Floating Glass) ===== */
.mobile-bottom-nav {
    position: fixed;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    width: 92%;
    background: rgba(255, 255, 255, 0.65);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 8px 26px rgba(0,0,0,0.15);
    border-radius: 22px;
    padding: 10px 0;
    z-index: 9999;

    display: flex;
    justify-content: space-around;
}

/* Items */
.mb-item {
    flex: 1;
    text-align: center;
    color: #333;
    text-decoration: none;
    font-size: 12px;
    padding: 6px 0;
    transition: 0.25s ease;
    position: relative;
}

/* Icon style */
.mb-item .icon {
    font-size: 22px;
    display: block;
    margin-bottom: 4px;
    transition: transform 0.25s;
}

/* Hover effect */
.mb-item:hover {
    color: #007aff;
}

.mb-item:hover .icon {
    transform: translateY(-4px);
}

/* Active item highlight */
.mb-item.active {
    color: #007aff;
}

.mb-item.active .icon {
    transform: translateY(-4px);
}

/* SPECIAL: nút đăng nhập */
.mb-item.login {
    color: #007aff;
    font-weight: 600;
}

/* Hide on desktop */
@media(min-width: 768px) {
    .mobile-bottom-nav {
        display: none;
    }
}


/* chỉ mobile */
@media (max-width:768px){
    .mobile-bottom-nav{
        display:flex;
    }

    body{
        padding-bottom:70px;
    }
}
/* ẩn footer mobile */
@media (max-width: 768px) {
    footer.footer {
        display: none !important;
    }
}
/* ZALO FLOAT - PREMIUM + SOFT EFFECT */
.zalo-float {
    position: fixed;
    right: 18px;
    bottom: 96px; /* né menu mobile */
    width: 56px;
    height: 56px;
    z-index: 9999;

    display: flex;
    align-items: center;
    justify-content: center;

    background: #fff;
    border-radius: 50%;

    box-shadow:
        0 6px 18px rgba(0,0,0,0.18),
        0 2px 6px rgba(0,0,0,0.12);

    transition:
        transform 0.25s ease,
        box-shadow 0.25s ease;
}

/* Logo */
.zalo-float img {
    width: 32px;
    height: 32px;
    transition: transform 0.25s ease;
}

/* Halo nhẹ phía sau */
.zalo-float::before {
    content: "";
    position: absolute;
    inset: -6px;
    border-radius: 50%;
    background: rgba(0,132,255,0.15);
    opacity: 0;
    transition: opacity 0.25s ease;
}

/* Hover / Tap */
.zalo-float:hover {
    transform: translateY(-3px);
    box-shadow:
        0 12px 26px rgba(0,0,0,0.22),
        0 6px 12px rgba(0,0,0,0.14);
}

.zalo-float:hover::before {
    opacity: 1;
}

.zalo-float:hover img {
    transform: scale(1.06);
}

/* Mobile */
@media (max-width: 768px) {
    .zalo-float {
        width: 54px;
        height: 54px;
        right: 14px;
        bottom: 84px;
    }
}