@charset "UTF-8";

/*
variable
--------------------------------------------------
*/
/*
variable > color
--------------------------------------------------
*/
:root {
  --color-text-black: #222;
}

/*
variable > content-width
--------------------------------------------------
*/
:root {
  --width-content-600: 600px;
  --width-content-900: 900px;
  --width-content-1000: 1000px;
}

/*
variable > font
--------------------------------------------------
*/
:root {
  --font-family-hiragino: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
}

/*
variable > font size
--------------------------------------------------
*/
:root {
  --font-size14: calc(14 / 16 * 1rem);
  --font-size16: calc(16 / 16 * 1rem);
  --font-size18: calc(18 / 16 * 1rem);
  --font-size20: calc(20 / 16 * 1rem);
}

/*
reset
--------------------------------------------------
*/
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  -moz-text-size-adjust: none;
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
}
body, h1, h2, h3, h4, p,
figure, blockquote, dl, dd {
  margin-block-end: 0;
}
ul[role='list'],
ol[role='list'] {
  list-style: none;
}
body {
  margin: 0;
  min-height: 100vh;
  line-height: 1.5;
}
h1, h2, h3, h4,
button, input, label {
  line-height: 1.1;
}
a:not([class]) {
  text-decoration-skip-ink: auto;
  color: currentColor;
}
img,
picture {
  max-width: 100%;
  display: block;
  margin: 0 auto;
}
input, button,
textarea, select {
  font: inherit;
}
textarea:not([rows]) {
  min-height: 10em;
}
:target {
  scroll-margin-block: 5ex;
}

/*
base
--------------------------------------------------
*/
html {
  scroll-behavior: smooth;
}
body {
  line-height: 1.8;
  font-size: var(--font-size14);
  color: var(--color-font-base);
  font-family: var(--font-family-hiragino);
}
img {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
  font-style: italic;
  background-repeat: no-repeat;
  background-size: cover;
  shape-margin: 0.75rem;
}
a {
  transition: all .3s ease-in-out;
}
a:hover {
  opacity: .7;
}

/*
utility
--------------------------------------------------
*/
/*
utility > text
--------------------------------------------------
*/
.u-text-center {
  text-align: center;
}
.u-text-left {
  text-align: left;
}
.u-text-right {
  text-align: right;
}
.u-text-bold {
  font-weight: 700;
} 

.youtube  {
  width:100%;
  aspect-ratio: 16/9;
}
.youtube iframe {
  width:100%;
  height: 100%;
}

/*
layout
--------------------------------------------------
*/
/*
layout > container
--------------------------------------------------
*/
.l-container-1000,
.l-container-900,
.l-container-600 {
  width: 90%;
  margin: 0 auto;
}
@media screen and (min-width: 769px) {
  .l-container-1000,
  .l-container-900,
  .l-container-600 {
    width: 100%;
  }
}

.l-container-600 {
  max-width: var(--width-content-600);
}
.l-container-900 {
  max-width: var(--width-content-900);
}
.l-container-1000 {
  max-width: var(--width-content-1000);
}

/*
layout > header
--------------------------------------------------
*/
.header h1 {
  margin: 0 0 30px 0;
}

.header h1 img {
  width: 100%;
}

@media screen and (min-width: 768px) {
  .header h1 {
    margin: 0 0 84px 0;
  }
}

/*
layout > main
--------------------------------------------------
*/
.top-button {
  max-width: 460px;
  margin: 0 5% 68px;
}
.top-event-overview {
  margin-bottom: 20px;
}
.top-button-02 {
  max-width: 460px;
  margin: 0 5% 60px;
}
.top-program {
  margin-bottom: 60px;
}
.top-speaker {
  margin-bottom: 62px;
}
.top-speaker__image {
  margin-bottom: 79px;
}
.top-movie {
  margin-bottom: 60px;
}
.top-movie h2 {
  margin-bottom: 25px;
}
.top-movie-inner {
  max-width: 560px;
  width: 90%;
  margin: 0 auto 40px;
}
.top-movie-inner h3 {
  color: #003153;
  font-size: 20px;
  font-weight: bold;
  margin-bottom: 10px;
}

@media screen and (min-width: 768px) {
  .top-button {
    margin: 0 auto 87px;
  }
  .top-button-02 {
    margin: 0 auto 90px;
  }
  .top-program {
    margin-bottom: 99px;
  }
  .top-speaker {
    margin-bottom: 87px;
  }
  .top-speaker__image {
    margin-bottom: 67px;
  }
  .top-movie-inner {
    width: 100%;
  }
  .top-movie-inner h3 {
    font-size: 22px;
  }
}

/*
layout > footer
--------------------------------------------------
*/
.footer p {
  margin-bottom: 50px;
}
.top-sponsorship__image {
  margin-bottom: 50px;
}

@media screen and (min-width: 768px) {
  .footer p {
    margin-bottom: 30px;
  }
}