.header {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    z-index: 7;
    width: 100%; 
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.header .inner-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1em;
}
.header .inner-header .logo img {
    height: 2.67em;
    max-width: 9em;
    object-fit: contain;
    cursor:pointer;
}

.close-btn {
    font-size: 2em;
    color: white;
    text-align: right;
    cursor: pointer;
    margin-top: -1em;
}

.arrow_desktop {
    display: none;
}

.arrow_mobile {
    display: inline;
}

.scroll-down-wrap {
    transition: opacity .4s ease;
}

.arrow_mobile .scroll-down-wrap.no-border {
    position: absolute;
    bottom: -11em;
    left: 50%;
    transform: translateX(-50%);
    width: 2.5em;
    height: 9.25em;
    overflow: hidden;
    z-index: 10;
    pointer-events: none;
}

.arrow_mobile .scroll-down-wrap.no-border .nectar-scroll-icon {
    width: 1.875em; 
    height: 2.8125em;
    text-align: center;
    cursor: pointer;
    position: relative;
    z-index: 1;
}

.arrow_mobile .scroll-down-wrap.no-border .section-down-arrow {
    display: block;
    position: relative;
    width: 100%;
    height: 100%;
    padding-top: 0.2em;
}

.arrow_mobile .scroll-down-wrap.no-border .section-down-arrow .scroll-hand-svg {
    position: absolute;
    transform: translateX(-50%);
    animation: bounce-up-down 4s ease-in-out infinite;
}

.arrow_desktop .scroll-down-wrap.no-border {
    position: absolute;
    bottom: -1.2em;
    left: 49%;
    width: 0.6em;
    z-index: 1;
}

.arrow_desktop .nectar-scroll-icon {
    width: 1em;
    height: 0.9em;
    text-align: center;
    cursor: pointer;
    position: relative;
    z-index: 1;
}
.arrow_desktop .scroll-down-wrap.no-border .section-down-arrow {
    border: none !important;
    overflow: visible;
    text-align: center;
    opacity: 1;
    height: auto;
    bottom: 13px;
    animation: nudgeMouse 2.4s cubic-bezier(.25,.46,.45,.94) infinite;
}

.arrow_desktop .scroll-down-wrap.no-border .section-down-arrow::before {
    position: absolute;
    content: '';
    display: block;
    left: 47%;
    top: 0;
    background-color: rgba(255, 255, 255, .5);
    width: 0.04em;
    height: 0.3em;
    border-radius: 2em;
    transition: background-color .55s cubic-bezier(.5,.1,.07,1);
    animation: trackBallSlide 2.4s cubic-bezier(0,0,.725,1) infinite;
}

.arrow_desktop .scroll-down-wrap.no-border .section-down-arrow::after {
    content: "";
    position: absolute;
    top: 9px;
    left: 50%;
    display: block;
    width: 1.3em;
    height: 2em;
    margin-left: -0.66em;
    border-radius: 5em;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    z-index: 3;
}

@media (min-width: 568px) and (min-height: 601px) {
    .header {
        font-size: 0.83em;
    }
}

@media (min-width: 768px) {
    .header {
        font-size: 0.83em;
        padding: 0em 0em;
    }
    
    /* .arrow_desktop .section-down-arrow {
        display: inline;
    }
    .arrow_desktop .scroll-down-wrap.no-border {
        bottom: -15em !important;
        font-size: 0.3em !important;
    } */
    
    
}

@media (min-width: 1200px) {
    .arrow_desktop {
        display: inline;
    }

    .arrow_mobile {
        display: none;
    }
    .header {
        font-size: 0.35em;
        padding: 0em 5em;
    }
    
    /* .scroll-down-wrap.no-border {
        bottom: -6em;
        font-size: 0.22em;
        width: 2em;
    }
    .scroll-down-wrap.no-border .section-down-arrow::before {
        margin-left: -0.1em;
        width: 0.15em;
    }
    .scroll-down-wrap.no-border .section-down-arrow::after {
        left: 62%;
        width: auto;
        height: auto;
        margin-left: -0.5em;
    } */

}

@keyframes swipe-bounce {
    0% {
        transform: translate(-50%, 100%) scale(1);
    }
    25% {
        transform: translate(-50%, 30%) scale(1.05);
    }
    40% {
        transform: translate(-50%, 0%) scale(1);
    }
    60% {
        transform: translate(-50%, 10%) scale(0.98);
    }
    75% {
        transform: translate(-50%, 30%) scale(1.02);
    }
    100% {
        transform: translate(-50%, 100%) scale(1);
    }
}

@keyframes bounce-up-down {
    0%   { transform: translateY(0); }
    25%  { transform: translateY(-5em); }
    35%  { transform: translateY(-4.6em); } /* nảy lùi nhẹ */
    45%  { transform: translateY(-5em); }   /* trở lại đỉnh */
    50%  { transform: translateY(-5em); }   /* giữ đỉnh chút */
    75%  { transform: translateY(0); }
    85%  { transform: translateY(0.4em); }  /* nảy xuống nhẹ */
    95%  { transform: translateY(0); }
    100% { transform: translateY(0); }
}

@keyframes nudgeMouse {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(3px);
    }
}
  
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-0.625em);
    }
    60% {
        transform: translateY(0.9em);
    }
}

@keyframes slide-up-loop {
    0% {
        transform: translateY(0);
        opacity: 0;
    }
    20% {
        opacity: 1;
    }
    50% {
        transform: translateY(-5.625em); /* lên giữa */
        opacity: 1;
    }
    70% {
        opacity: 1;
    }
    100% {
        transform: translateY(-11.25em); /* trượt hết lên trên */
        opacity: 0;
    }
}

@keyframes trackBallSlide {
    0% {
        opacity: 0;
        transform: translateY(0);
    }
    10% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: translateY(0.55em);
    }
}