*{
    --Clor-black: #000;
    --Clor-white: #fff;
    --Clor-lightBlack: #444;
    --Clor-darkWhite: #e5e5e5;
}
#banner{
    min-height: 65vh;
}
#banner .banner-contents .para span{
    font-size: clamp(1.25rem, -0.179rem + 7.143vw, 11.25rem);
}
#who-we-are,
#roi,
#promise-section{
    padding: 7vw 0;
}
#who-we-are{
    margin-top: 1%;
}
#who-we-are .left{
    width: 40%;
}
#who-we-are .right{
    width: 60%;
}
#who-we-are .about-contents {
    margin-top: 3vw;
    display: flex;
    align-items: stretch;
    gap: 3vw;
}
#who-we-are .left,
#who-we-are .right {
    flex: 1;
    display: flex;
    flex-direction: column;
}
#who-we-are .left {
    overflow: hidden;
    justify-content: center;
    align-items: center;
    background-color: var(--Clor-black);
    border-radius: 15px;
    & > model-viewer {
        width: 80%;
        height: 80%;
        transform: translate(0) !important;
        filter: drop-shadow(-3px 1px 5px var(--Clor-darkWhite));
    }
    & > span{
        color: var(--Clor-darkWhite);
    }
}
#who-we-are .right {
    justify-content: center;
    & > h4{
        transform: translate(0) !important;
        font-size: 3.1vw;
        margin-bottom: 2vw;
        font-style: italic;
    }
    & > p{
        font-size: 1.5vw;
        & > b > span{
            font-size: 1.6vw;
            letter-spacing: .25rem;
            padding: 0 .25vw;
        }
    }
    & > .more{
        justify-content: left;
        margin-top: 2vw;
        & > a{
            font-size: 1.5vw;
        }
    }
}
/* roi */
#roi{
    background-color: var(--Clor-lightBlack);
}
#roi .section-header{
    z-index: 2;
    & > h4{
        color: var(--Clor-darkWhite);
        &::before{
            background-color: var(--Clor-darkWhite);
        }
    }
    & > p{
        font-size: 1.6vw;
        color: var(--Clor-darkWhite);
    }
}
#roi .roi-content{
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 4%;
    margin-top: 3%;
    padding: 3vw;
    background-color: var(--Clor-lightBlack);
    border-radius: 5px;
    & > .roi-stats{
        width: 48%;
        z-index: 2;
    }
    & > .roi-visual{
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        width: 48%;
        & > .roi-circle > .circle-content{
            z-index: 2;
            font-size: 1.6vw;
            transform: translate(0) !important;
        }
        & > .roi-circle > .circle-content > h4{
            font-size: 3vw;
        }
        & > .roi-features{
            display: flex;
            justify-content: space-between;
            & > .feature{
                padding: 2vw 1vw;
                color: var(--Clor-darkWhite);
            }
            & > .feature > .feature-icon{
                width: 4vw;
                height: 4vw;
                margin: 0 auto 1vw;
                background-color: var(--Clor-darkWhite);
                border-radius: 50%;
                display: flex;
                justify-content: center;
                align-items: center;
                color: var(--Clor-lightBlack);
                font-weight: bold;
                font-size: 1.2rem;
                transform: translate(0) !important;
            }
        }
    }
}
#roi .roi-content .roi-visual .roi-circle{
    width: 18vw;
    height: 18vw;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    animation: fillcircle 1s ease-in-out forwards;
    animation-timeline: view();
    animation-range: entry 0% cover 40%;
    &::before{
        position: absolute;
        content: "";
        width: 15vw;
        height: 15vw;
        border-radius: 50%;
        background-color: var(--Clor-darkWhite);
    }
}
@keyframes fillcircle{
    0%{
        background: conic-gradient(#000 0deg, #f0f0f0 0deg);
    }
    5%{
        background: conic-gradient(#000 17.1deg, #f0f0f0 17.1deg);
    }
    10%{
        background: conic-gradient(#000 34.2deg, #f0f0f0 34.2deg);
    }
    15%{
        background: conic-gradient(#000 51.3deg, #f0f0f0 51.3deg);
    }
    20%{
        background: conic-gradient(#000 68.4deg, #f0f0f0 68.4deg);
    }
    25%{
        background: conic-gradient(#000 85.5deg, #f0f0f0 85.5deg);
    }
    30%{
        background: conic-gradient(#000 102.6deg, #f0f0f0 102.6deg);
    }
    40%{
        background: conic-gradient(#000 136.8deg, #f0f0f0 136.8deg);
    }
    50%{
        background: conic-gradient(#000 171deg, #f0f0f0 171deg);
    }
    60%{
        background: conic-gradient(#000 205.2deg, #f0f0f0 205.2deg);
    }
    70%{
        background: conic-gradient(#000 239.4deg, #f0f0f0 239.4deg);
    }
    75%{
        background: conic-gradient(#000 256.5deg, #f0f0f0 256.5deg);
    }
    80%{
        background: conic-gradient(#000 273.6deg, #f0f0f0 273.6deg);
    }
    85%{
        background: conic-gradient(#000 290.7deg, #f0f0f0 290.7deg);
    }
    90%{
        background: conic-gradient(#000 307.8deg, #f0f0f0 307.8deg);
    }
    95%{
        background: conic-gradient(#000 324.9deg, #f0f0f0 324.9deg);
    }
    100%{
        background: conic-gradient(#000 342deg, #f0f0f0 342deg);
    }
}
#roi .roi-content .roi-stats .stat-item{
    margin-bottom: 2vw;
    & > .stat-header{
        display: flex;
        justify-content: space-between;
        margin-bottom: 2vw;
        color: var(--Clor-white);
    }
    & > .stat-bar{
        height: 1vw;
        background-color: var(--Clor-black);
        border-radius: 10px;
        & > .stat-progress{
            background-color: var(--Clor-white);
            height: 100%;
            border-radius: 10px;
        }
    }
}
#roi .more{
    justify-content: left;
    margin: 5vw 0 3vw 0;
    & > a{
        color: var(--Clor-darkWhite);
        &::before{
            background-color: var(--Clor-darkWhite);
        }
    }
}
#roi .graphic-elements{
    & > .circle-1{
        top: 30%;
    }
    & > .circle-3{
        left: 20%;
    }
}
/* roi */
/* quality-over-quantity */
#quality-over-quantity .section-header {
    text-align: center;
    margin-bottom: 5vw;
}
#quality-over-quantity .section-tagline {
    font-size: 1.3vw;
    margin: 0 12%;
    text-align: center;
}
#quality-over-quantity .timeline-container {
    position: relative;
}
#quality-over-quantity .timeline-container::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    background: var(--Clor-lightBlack);
    border-radius: 15px;
    z-index: 1;
}
#quality-over-quantity .timeline-item {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    margin: 2vw 0;
    position: relative;
    width: 100%;
    z-index: 2;
}
#quality-over-quantity .timeline-item:nth-child(even) {
    justify-content: flex-end;
}
#quality-over-quantity .timeline-content {
    width: 45%;
    padding: 2vw;
    background: var(--Clor-white);
    border: 2px solid var(--Clor-lightBlack);
    border-radius: 8px;
    position: relative;
    transition: .3s ease;
}
#quality-over-quantity .timeline-item:nth-child(odd) .timeline-content {
    text-align: right;
}
#quality-over-quantity .timeline-item .timeline-content::before {
    content: '';
    position: absolute;
    top: 50%;
    right: -11%;
    transform: translateY(-50%);
    width: 11%;
    height: 2px;
    background: var(--Clor-lightBlack);
}
#quality-over-quantity .timeline-item:nth-child(even) .timeline-content::before {
    left: -11%;
}
#quality-over-quantity .timeline-node {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2vw;
    height: 2vw;
    background: var(--Clor-black);
    border-radius: 50%;
    border: 4px solid var(--Clor-white);
    box-shadow: 0 0 0 2px var(--Clor-black);
    z-index: 2;
    transition: .3s ease;
}
#quality-over-quantity .timeline-content:hover ~ .timeline-node{
    transform: translate(-50%, -10px);
}
#quality-over-quantity .timeline-content h4 {
    font-size: 2vw;
    font-weight: 700;
    margin-bottom: 2vw;
    & > span{
        letter-spacing: .3rem;
        text-decoration: underline #acacac;
        & > a{
            color: var(--Clor-black);
        }
    }
}
#quality-over-quantity .wave-text span:nth-child(1) {
    animation-delay: 0s;
}
#quality-over-quantity .wave-text span:nth-child(2) {
    animation-delay: 0.2s;
}
#quality-over-quantity .wave-text span:nth-child(3) {
    animation-delay: 0.4s;
}
#quality-over-quantity .wave-text span:nth-child(4) {
    animation-delay: 0.6s;
}
@keyframes wave {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}
#quality-over-quantity .timeline-content p {
    margin-bottom: 1vw;
    font-size: 1.3vw;
}
#quality-over-quantity .quality-features {
    display: flex;
    justify-content: space-evenly;
    gap: 2vw;
    margin-top: 2vw;
}
#quality-over-quantity .feature {
    display: flex;
    align-items: center;
    gap: 1vw;
}
#quality-over-quantity .feature-icon {
    width: 4vw;
    height: 4vw;
    background: var(--Clor-black);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--Clor-darkWhite);
    font-size: 2vw;
    flex-shrink: 0;
    transform: translate(0) !important;
    transition: .3s ease;
}
#quality-over-quantity .feature-text h4 {
    font-size: 1.3vw;
    margin-bottom: .5rem;
    font-weight: 600;
}
/* quality-over-quantity */
/* promise */
#promise-section .row{
    background: var(--Clor-darkWhite);
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    position: relative;
}
#promise-section .section-header {
    text-align: center;
    margin: 5vw 0 2.5vw 0;
    & > p{
        font-size: 1.1rem;
        margin: 0 12%;
    }
}
#promise-section .promise-content {
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
    gap: 2vw;
    padding: 2vw;
}
#promise-section .promise-cards {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3vw;
    & > .promise-card {
        background: var(--Clor-white);
        border: 1px solid #eee;
        border-radius: 5px;
        border-top: 4px solid var(--Clor-lightBlack);
        padding: 3vw;
        transition: all 0.3s ease;
        position: relative;
        overflow: hidden;
        & > .card-icon{
            width: 5vw;
            height: 5vw;
            background-color: var(--Clor-black);
            border-radius: 50%;
            display: flex;
            justify-content: center;
            align-items: center;
            margin-bottom: 2vw;
            color: var(--Clor-darkWhite);
            font-size: 1.5rem;
            font-weight: bold;
            transform: translate(0) !important;
        }
        & > h4{
            font-size: 2vw;
            margin-bottom: 1.5vw;
        }
        & > p{
            line-height: 1.6;
            font-size: 1.2vw;
        }
    }
}
#promise-section .promise-statement {
    flex: 1;
    background-color: var(--Clor-white);
    padding: 3vw;
    border-radius: 8px;
    border-top: 4px solid var(--Clor-lightBlack);
    display: flex;
    flex-direction: column;
    justify-content: center;
    & > h4{
        font-size: 1.5rem;
        margin-bottom: 2vw;
        z-index: 2;
    }
    & > p{
        line-height: 1.7;
        margin-bottom: 2vw;
        z-index: 2;
    }
}
#promise-section .signature {
    display: flex;
    align-items: center;
    margin-top: 2vw;
    & > .signature-line{
        width: 10%;
        height: 1px;
        background-color: var(--Clor-black);
        margin-right: 1vw;
    }
    & > .signature-text{
        font-weight: 600;
        font-style: italic;
        transform: translate(0) !important;
    }
}
#promise-section .promise-footer {
    text-align: center;
    padding-top: 2vw;
    border-top: 1px solid var(--Clor-white);
    margin-bottom: 3vw;
    & > p{
        font-size: 1rem;
        margin: 0 auto;
        line-height: 1.6;
    }
}
#promise-section .graphic-elements{
    & > .circle-2{
        top: 70%;
        left: 65%;
    }
    & > .circle-4{
        top: 82%;
        left: 50%;
    }
}
/* promise */
/* responsiveness */
@media (max-width: 430px){
    #who-we-are .left{
        width: 100%;
        min-height: 100%;
        & > span{
            font-size: 3vw;
        }
    }
    #who-we-are .right{
        width: 100%;
        text-align: center;
        & > h4{
            font-size: 3.5vw;
        }
        & > p{
            font-size: 2.5vw;
            & > b > span{
                font-size: 2.1vw;
                margin: 0 1vw;
            }
        }
        & > .more{
            justify-content: center;
            margin: 0 0 10vw 0;
            & > a{
                font-size: 2.5vw;
            }
        }
    }
    #who-we-are .about-contents{
        flex-direction: column;
        justify-content: center;
        align-items: center;
        margin: 30% 0 15% 0;
    }
    #roi .roi-content{
        flex-direction: column;
        & > .roi-stats{
            width: 90%;
            margin-bottom: 10vw;
            & > .more{
                justify-content: center;
                & > a{
                    font-size: 3vw;
                }
            }
        }
    }
    #roi .section-header p,
    #quality-over-quantity .section-header p,
    #promise-section .section-header p{
        font-size: 2.6vw;
    }
    #roi .roi-content .roi-stats .stat-item{
        margin-bottom: 6vw;
        & > .stat-header > span{
            font-size: 3vw;
        }
    }
    #roi .roi-content .roi-visual{
        width: 100%;
        & > .roi-circle{
            width: 40vw;
            height: 40vw;
            &::before{
                width: 35vw;
                height: 35vw;
            }
            & > .circle-content{
                font-size: 3.6vw;
                & > h4{
                    font-size: 5vw;
                }
            }
        }
        & > .roi-features > .feature{
            margin-top: 4vw;
            & > .feature-icon{
                font-size: 2vw;
            }
            & > p{
                font-size: 3vw;
                padding-bottom: 0;
            }
        }
    }
    #quality-over-quantity .timeline-container::before{
        width: 2px;
    }
    #quality-over-quantity .timeline-content{
        border: 1px solid var(--Clor-lightBlack);
        padding: 3vw;
    }
    #quality-over-quantity .timeline-content h4{
        font-size: 3.2vw;
        & > span{
            letter-spacing: .15rem;
        }
    }
    #quality-over-quantity .timeline-content p{
        font-size: 2vw;
        margin: 3vw 0;
    }
    #quality-over-quantity .timeline-content .feature h4{
        font-size: 2vw;
        margin-bottom: 0;
    }
    #promise-section .promise-cards .promise-card{
        border-top: 2px solid var(--Clor-lightBlack);
        & > .card-icon{
            width: 7vw;
            height: 7vw;
            font-size: 3.5vw;
        }
        & > h4{
            font-size: 3vw;
        }
        & > p{
            font-size: 2vw;
            margin-bottom: 0;
        }
    }
    #promise-section .promise-statement{
        border-top: 2px solid var(--Clor-lightBlack);
        padding: 5vw;
        & > p{
            font-size: 2vw;
        }
        & > h4{
            font-size: 3.6vw;
        }
    }
    #promise-section .signature-text{
        font-size: 2.4vw;
    }
    #promise-section .promise-footer p{
        font-size: 2vw;
    }
}
/* responsiveness */