:root {
    --color-main: #050B20;
    --color-secondary: #1E40AF;
    --color-purple: #7C3AED;
    --color-accent: #3AF3C5;
    --color-white: #fff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    word-break: keep-all;
}

.intro {
    position: relative;
    height: 100vh;
    width: 100%;
    display: flex;
    background: url('../images/intro_bg_pc.png') no-repeat center center / cover;
}

.intro__link {
    position: relative;
    width: 50%;
    height: 100%;
    display: flex;
    align-items: center;
    text-decoration: none;
}

.intro__link--left {
    justify-content: flex-start;
    padding-left: 8%;

    &::before {
        content: '';
        position: absolute;
        left: 0;
        top: 0;
        width: 60%;
        height: 100%;
        background: linear-gradient(to right, rgba(0, 0, 0, 0.2), transparent);
        pointer-events: none;
    }
}

.intro__link--right {
    justify-content: flex-end;
    padding-right: 8%;

    &::before {
        content: '';
        position: absolute;
        right: 0;
        top: 0;
        width: 60%;
        height: 100%;
        background: linear-gradient(to left, rgba(0, 0, 0, 0.2), transparent);
        pointer-events: none;
    }
}

.intro__content {
    color: var(--color-white);
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
    transition: transform 0.4s;
}

.intro__link--left .intro__content {
    text-align: left;
}

.intro__link--right .intro__content {
    text-align: right;
}

.intro__label {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 30px;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.5px;
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.intro__title {
    font-size: 56px;
    font-weight: 700;
    letter-spacing: -1px;
    line-height: 1.3;
}

.intro__arrow {
    position: absolute;
    bottom: 80px;
    font-size: 60px;
    color: var(--color-white);
    opacity: 0.8;
    transition: transform 0.4s, opacity 0.4s;
}

.intro__link:hover .intro__content {
    transform: translateY(-10px);
}

.intro__link:hover .intro__arrow {
    opacity: 1;
}

.intro__link--left:hover .intro__arrow {
    transform: translateX(-10px);
}

.intro__link--right:hover .intro__arrow {
    transform: translateX(10px);
}

.intro__link--left .intro__arrow {
    left: 8%;
}

.intro__link--right .intro__arrow {
    right: 8%;
}

@media (max-width: 768px) {
    .intro {
        flex-direction: column;
        background: url('../images/intro_bg_mobile.png') no-repeat center center / cover;
    }

    .intro__link {
        width: 100%;
        height: 50%;
        justify-content: center;
        padding: 0 20px;
    }

    .intro__link--left {
        padding-left: 20px;

        &::before {
            width: 100%;
            height: 60%;
            background: linear-gradient(to bottom, rgba(0, 0, 0, 0.2), transparent);
        }
    }

    .intro__link--right {
        padding-right: 20px;

        &::before {
            left: 0;
            right: auto;
            top: auto;
            bottom: 0;
            width: 100%;
            height: 60%;
            background: linear-gradient(to top, rgba(0, 0, 0, 0.2), transparent);
        }
    }

    .intro__content {
        text-align: center;
    }

    .intro__link--left .intro__content,
    .intro__link--right .intro__content {
        text-align: center;
    }

    .intro__title {
        font-size: 28px;
    }

    .intro__label {
        font-size: 12px;
        padding: 6px 16px;
        margin-bottom: 16px;
    }

    .intro__arrow {
        font-size: 40px;
        bottom: 12%;
    }

    .intro__link--left .intro__arrow {
        left: 30px;
    }

    .intro__link--right .intro__arrow {
        right: 30px;
    }
}