html {
    scroll-behavior: smooth;
}

.t-slider-page .slider-title {
    background: transparent;
    max-width: unset;
    cursor: default;
}

.t-slider-page .slider-title .h2, .t-slider-page .slider-title h2 {
    font-weight: bold;
}

.t-slider-page .slider-title .h1, .t-slider-page .slider-title h1 {
    font-weight: bold;
}

@media (min-width:992px) {
    .t-slider-page .slider-title .h2, .t-slider-page .slider-title h2 {
        font-size: 2.5rem;
    }

    .t-slider-page .slider-title .h1, .t-slider-page .slider-title h1 {
        font-size: 4rem;
    }
}

@media (min-width:1200px) {
    .t-slider-page .slider-title .h2, .t-slider-page .slider-title h2 {
        font-size: 3rem;
    }

    .t-slider-page .slider-title .h1, .t-slider-page .slider-title h1 {
        font-size: 4.5rem;
    }
}

.t-slider-page .slider-title:hover {
    background: transparent;
}

.modal-content {
    background-color: #093009;
    border: 2px dashed white;
    color: white;
}

.custom-close {
    position: absolute;
    top: -25px;
    right: -25px;
    z-index: 2;
    width: 50px;
    height: 50px;
    cursor: pointer;
    border-radius: 50%;
    transition: background-color 0.3s;
}

.modal-body {
    font-size: 1.4rem;
    text-align: justify;
    line-height: 1.6;
    padding: 1.8rem;
}

@media (max-width:767.98px) {
    .modal-content {
        margin: 30px;
    }

    .modal-body {
        font-size: 1rem;
        padding: 1rem;
    }
}

.statistical {
    padding: 60px 20px;
    position: relative
}

@media (min-width:768px) {
    .statistical {
        padding: 60px auto
    }
}

.statistical:before {
    background-color: #093009;
    background-position: 50% 0;
    background-repeat: no-repeat;
    background-size: cover;
    content: " ";
    display: block;
    height: 100%;
    left: 0;
    position: absolute;
    top: 0;
    width: 100%
}

.statistical .statistical-content {
    margin: 0 auto;
    max-width: 1280px;
    position: relative
}

.statistical__title {
    color: #fff;
    font-size: 30px;
    font-weight: 700;
    letter-spacing: .01em;
    line-height: 56px;
    margin-bottom: 27px;
    text-align: center;
    text-transform: uppercase
}

.statistical__description {
    font-weight: 400;
    letter-spacing: .01em;
    line-height: 24px;
    margin: 0 auto 56px;
    max-width: 606px;
    text-align: justify
}

@media (min-width:768px) {
    .statistical__description {
        text-align: center
    }
}

.statistical__list {
    align-items: flex-start;
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(2, calc(50% - 8px));
    margin: 0 auto;
    max-width: 855px;
    width: 100%
}

@media (min-width:768px) {
    .statistical__list {
        gap: 60px;
        grid-template-columns: repeat(3, calc(33.3333% - 40px))
    }
}

.statistical__list-item {
    align-items: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    margin-bottom: 24px
}

.statistical__list-item img {
    margin-bottom: 0.5rem;
    width: 100px
}

@media (min-width:768px) {
    .statistical__list-item .h5, .statistical__list-item h5 {
        font-size: 26px
    }
}

.statistical__list-item p {
    color: #fff;
    font-weight: 600;
    letter-spacing: .01em;
    line-height: 24px;
    margin-bottom: 0.5rem;
    text-align: center
}


.classification {
    padding: 60px 20px;
    position: relative
}

@media (min-width:768px) {
    .classification {
        padding: 60px auto
    }
}

.classification:before {
    background-position: 50% 0;
    background-repeat: no-repeat;
    background-size: cover;
    content: " ";
    display: block;
    height: 100%;
    left: 0;
    position: absolute;
    top: 0;
    width: 100%
}

.classification .classification-content {
    margin: 0 auto;
    max-width: 1280px;
    position: relative
}

.classification__title {
    color: #fff;
    font-size: 30px;
    font-weight: 700;
    letter-spacing: .01em;
    line-height: 56px;
    margin-bottom: 27px;
    text-align: center;
    text-transform: uppercase
}

.classification__description {
    font-weight: 400;
    letter-spacing: .01em;
    line-height: 24px;
    margin: 0 auto 56px;
    max-width: 606px;
    text-align: justify
}

@media (min-width:768px) {
    .classification__description {
        text-align: center
    }
}

.classification:before {
    background-image: url('../images/background.png');
    background-color: rgba(0, 0, 0, 0.6);
    background-blend-mode: darken;
}

.classification-content .classification-content__title {
    text-align: center;
    font-weight: 700;
    color: #fff;
}

.model-button {
    display: inline-block;
    font-size: 1.5em;
    font-weight: bold;
    padding: 10px 20px;
    border-radius: 10px;
    text-align: center;
    text-decoration: none;
    position: relative;
    transition: transform 0.2s, box-shadow 0.2s;
}

.model-button::before {
    content: '';
    position: absolute;
    top: -5px;
    right: -5px;
    bottom: -5px;
    border: 4px solid;
    left: -5px;
    border-radius: 12px;
    pointer-events: none;
}

.model-button:hover {
    transform: scale(1.1);
}

.green-button {
    color: white;
    background-color: #00FE28;
    border: 2px solid white;
    box-shadow: 0 0 10px #00FE28, 0 0 20px #00FE28, 0 0 30px #00FE28;
}

.green-button::before {
    border-color: #00FE28;
}

.green-button:hover {
    box-shadow: 0 0 15px #00FE28, 0 0 30px #00FE28, 0 0 45px #00FE28;
}

.orange-button {
    color: white;
    background-color: #FA7802;
    border: 2px solid white;
    box-shadow: 0 0 10px #FA7802, 0 0 20px #FA7802, 0 0 30px #FA7802;
}

.orange-button::before {
    border-color: #FA7802;
}

.orange-button:hover {
    box-shadow: 0 0 15px #FA7802, 0 0 30px #FA7802, 0 0 45px #FA7802;
}

.custom-btn {
    color: white;
    font-weight: 700;
    padding: 10px;
    position: relative;
    min-width: 150px;
    cursor: pointer;
    border: none;
    background: transparent;
    isolation: isolate;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

.custom-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: white;
    z-index: -2;
    clip-path: polygon(20px 0, calc(100% - 20px) 0, 100% 50%, calc(100% - 20px) 100%, 20px 100%, 0 50%);
}

.custom-btn::after {
    content: '';
    position: absolute;
    inset: 2px;
    z-index: -1;
    clip-path: polygon(18px 0, calc(100% - 18px) 0, 100% 50%, calc(100% - 18px) 100%, 18px 100%, 0 50%);
}

.custom-btn .glow {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    z-index: -3;
    filter: blur(10px);
    opacity: 0.5;
    clip-path: polygon(20px 0, calc(100% - 20px) 0, 100% 50%, calc(100% - 20px) 100%, 20px 100%, 0 50%);
}


.custom-btn-green::after {
    background: linear-gradient(to right,
            #009900,
            #00cc00 30%,
            #00cc00 70%,
            #009900);
}

.custom-btn-green .glow {
    background: #00ff00;
}

.custom-btn-green:hover::after {
    background: linear-gradient(to right,
            #00b300,
            #00ee00 30%,
            #00ee00 70%,
            #00b300);
}

.custom-btn-green:active::after {
    background: linear-gradient(to right,
            #008000,
            #00aa00 30%,
            #00aa00 70%,
            #008000);
}

.custom-btn-orange::after {
    background: linear-gradient(to right,
            #cc5500,
            #ff6600 30%,
            #ff6600 70%,
            #cc5500);
}

.custom-btn-orange .glow {
    background: #ff8533;
}

.custom-btn-orange:hover::after {
    background: linear-gradient(to right,
            #e65c00,
            #ff751a 30%,
            #ff751a 70%,
            #e65c00);
}

.custom-btn-orange:active::after {
    background: linear-gradient(to right,
            #b34700,
            #e65c00 30%,
            #e65c00 70%,
            #b34700);
}

.upload-box {
    position: relative;
}

.upload-box h4 {
    color: #fff;
    font-size: 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
}

.upload {
    position: relative;
    width: 70%;
    margin: 0 auto;
    aspect-ratio: 1/1;
    background-color: transparent;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    overflow: visible;
}

.upload::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    background-image: url('../images/upload.png');
    background-size: 100% 100%;
    background-repeat: no-repeat;
    z-index: 2;
    pointer-events: none;
}

.upload-content {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    position: relative;
    z-index: 1;
}

.upload img {
    width: 80px;
    height: auto;
}

.upload p {
    color: #fff;
    text-align: center;
    margin: 0;
    line-height: 1.8;
}

.question-box {
    color: white;
    padding-left: 2rem;
    padding-right: 2rem;
}

.question-box h4 {
    font-size: 24px;
    font-weight: bold;
    text-transform: uppercase;
}

.question {
    background-image: url('../images/text.png');
    min-height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background-size: 100% 100%;
    background-repeat: no-repeat;
    margin-bottom: 5rem;
}

.question p {
    color: white;
    font-weight: 700;
    margin: 0;
}

.question:last-child {
    margin-bottom: 0;
}

.zeen-question-popup {
    max-width: 1030px;
    margin: 0 auto;
    padding: 10px 20px;
    border: 2px dashed #fff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.zeen-question-title {
    color: #fff;
    font-size: 22px;
    line-height: 1.4;
    flex: 1;
}

.zeen-question-btn {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin: 0 20px;
}

.zeen-question-img {
    width: 150px;
    display: flex;
    align-items: center;
}

.zeen-question-img img {
    width: 100%;
    height: auto;
}

.zeen-thank-popup {
    max-width: 1030px;
    margin: 0 auto;
    padding: 10px 20px;
    border: 2px dashed #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-direction: column;
    padding-top: 2rem;
    padding-bottom: 2rem;
}

.zeen-thank-title {
    color: #fff;
    font-size: 22px;
    line-height: 1.4;
}

/* CSS cho navigation */
.questions-container {
    position: relative;
}

.questions-slide {
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.questions-slide.active {
    display: block;
    opacity: 1;
}

.nav-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: #00ff00;
    font-size: 2rem;
    cursor: pointer;
    z-index: 10;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.3s ease;
}

.nav-arrow:hover {
    color: #fff;
}

.nav-arrow.prev {
    left: -10px;
}

.nav-arrow.next {
    right: -10px;
}

.nav-arrow:disabled {
    color: #333;
    cursor: not-allowed;
}

.d-none {
    display: none !important;
}

@media (max-width:992px) {
    .question-box {
        margin-top: 4rem;
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }
}

@media (max-width:767.98px) {
    .t-slider-page .slider-title {
        top: 38%;
    }

    .t-slider-page .slider-title .h2, .t-slider-page .slider-title h2 {
        font-size: 1.3rem;
    }

    .t-slider-page .slider-title .h1, .t-slider-page .slider-title h1 {
        font-size: 1.4rem;
    }

    .classification-content .classification-content__title {
        font-size: 1.3rem;
    }

    .upload {
        width: 98%;
    }

    .upload-box h4 {
        font-size: 1.2rem;
    }

    .upload img {
        width: 60px;
    }

    .upload p {
        font-size: 1rem;
    }

    .model-button {
        font-size: 0.8rem;
        padding: 6px 20px;
    }

    .custom-btn {
        min-width: 120px;
        padding: 7px;
        font-size: 0.8rem;
    }

    .question-box h4 {
        font-size: 1.2rem;
    }

    .question {
        min-height: 64px;
        margin-bottom: 0.8rem;
        margin-top: 1.5rem;
    }

    .question p {
        font-size: 0.8rem;
    }

    .zeen-question-popup {
        flex-direction: column;
    }

    .zeen-question-btn {
        flex-direction: row;
    }

    .zeen-question-title {
        font-size: 1rem;
    }

    .zeen-question-img {
        width: 100px;
    }

    .zeen-thank-title {
        font-size: 1rem;
    }

    .statistical__list-item img {
        width: 50px;
    }

    .statistical__list-item p {
        font-size: 1rem;
    }

    .nav-arrow {
        width: 30px;
        height: 30px;
        top: 66%
    }
}

.zeen-question-popup,
.zeen-thank-popup {
    opacity: 1;
    transition: all 0.3s ease-in-out;
    visibility: visible;
    transform: scale(1);
}

.hidden {
    opacity: 0 !important;
    visibility: hidden !important;
    transform: scale(0.9) !important;
    transition: all 0.3s ease-in-out;
    display: none;
}

.result-volume {
    cursor: pointer;
    width: 2rem;
    padding-bottom: 3px;
    margin-left: 10px;
}