@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;600;800&display=swap');

:root {
    --background-color: #F8F8F8;
    --orange-gradient: linear-gradient(271deg, #F8B62B 0.24%, #FBD300 100%);
    --blue-gradient: linear-gradient(96deg, #50CCF9 0%, #00AEF0 48.81%, #009DEA 96.22%);
    --white: #FFFFFF;
    --black: #000000;
    --orange: #F5BD1B;
    --gray: #333333;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
}

.img-hero {
    width: 100%;
}

.button-wrapper {
    background: var(--background-color);
    text-align: center;
}

.button-wrapper>a {
    display: inline-block;
    text-decoration: none;
}

.button {
    background: var(--orange-gradient);
}

section>header {
    background: var(--black);
    color: var(--white);
    text-align: center;
}

.details-section {
    background: var(--blue-gradient);
}

.details-section-body>h2 {
    color: var(--white);
}

.details-section-body>p {
    color: var(--white);
    border-top: 1px solid var(--white);
    border-bottom: 1px solid var(--white);
    padding: 16px 0;
    font-size: 24px;
    font-weight: 600;
    line-height: 40px;
}

.target-audience-wrapper>h3 {
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--black);
    color: var(--orange);
}

.target-audience-wrapper>ul {
    margin: 0;
    padding: 0;
    list-style-type: none;
}

.target-audience-wrapper>ul>li {
    background: var(--orange-gradient);
}

.speaker-details-wrapper {
    background: rgba(255, 255, 255, 0.40);
    font-weight: 600;
}

.speaker-details-body>img {
    border-radius: 50%;
    width: 160px;
}

.footnote {
    display: flex;
    flex-direction: column;
    font-size: 12px;
    color: var(--gray);
}

footer {
    width: 100%;
    position: sticky;
    bottom: 0;
}