/* Reset CSS */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box
}

:where([hidden]:not([hidden='until-found'])) {
  display: none !important
}

:where(html) {
  -webkit-text-size-adjust: none;
  color-scheme: dark light
}

@supports not (min-block-size:100dvb) {
  :where(html) {
    block-size: 100%
  }
}

@media (prefers-reduced-motion:no-preference) {
  :where(html:focus-within) {
    scroll-behavior: smooth
  }
}

:where(body) {
  block-size: 100%;
  block-size: 100dvb;
  line-height: 1.5;
  font-family: system-ui, sans-serif;
  -webkit-font-smoothing: antialiased
}

:where(input, button, textarea, select) {
  font: inherit;
  color: inherit
}

:where(textarea) {
  resize: vertical;
  resize: block
}

:where(button, label, select, summary, [role='button'], [role='option']) {
  cursor: pointer
}

:where(:disabled) {
  cursor: not-allowed
}

:where(label:has(>input:disabled), label:has(+input:disabled)) {
  cursor: not-allowed
}

:where(button) {
  border-style: solid
}

:where(a) {
  text-underline-offset: .2ex
}

:where(ul, ol) {
  list-style: none
}

:where(video, canvas, audio, iframe, embed, object) {
  display: block
}

:where(img, svg) {
  display: inline-block;
}

:where(img, picture, svg) {
  max-inline-size: 100%;
  block-size: auto
}

:where(p, h1, h2, h3, h4, h5, h6) {
  overflow-wrap: break-word
}

:where(h1, h2, h3) {
  line-height: calc(1em + 0.5rem)
}

:where(hr) {
  border: none;
  border-block-start: 1px solid;
  color: inherit;
  block-size: 0;
  overflow: visible
}

:where(:focus-visible) {
  outline: 2px solid var(--focus-color, Highlight);
  outline-offset: 2px
}

:where(.visually-hidden:not(:focus, :active, :focus-within, .not-visually-hidden)) {
  clip-path: inset(50%) !important;
  height: 1px !important;
  width: 1px !important;
  overflow: hidden !important;
  position: absolute !important;
  white-space: nowrap !important;
  border: 0 !important
}

* {
  outline: 0;
}

:root {
  --margin-default: 12px;
  --padding-default: 12px;
  --radius-default: 12px;

  --text-color: #333;
  --text-color-invert: #fff;
  --text-color-fixed: #fff;
  --text-link-color: #0092ff;
  --bg-color: #fff;
  --accent-color: #2563eb;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text-color: #e5e7eb;
    --text-color-invert: #333;
    --text-link-color: #00f2ff;
    --bg-color: #202124;
    --accent-color: #60a5fa;
  }
}

html,
body {
  font-size: 10px;
  background-color: var(--bg-color);
  min-height: 100dvh;
}

body {
  font-size: 1.6rem;
  font-family: "Noto Sans", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  line-height: 1.78;
  color: var(--color-base);
}

main {
  padding: var(--padding-default);
}

p + p {
  margin-top: 1em;
}

.error-message {
  color: #f00;
}

a {
  color: var(--text-link-color);
  text-decoration: none;
}

.nowrap {
  white-space: nowrap;
}

.hide {
  display: none !important;
}

@media screen and (max-width: 600px) {
  main {
    padding-bottom: 80px;
  }
}

/* ヘッダー */
header a {
  text-decoration: none;
  color: var(--text-link-color);
}

header .logo a {
  display: inline-block;
  aspect-ratio: 52 / 10;
  width: 300px;
  background-image: url(../images/logo.webp);
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
  text-indent: 100%;
  overflow: hidden;
  white-space: nowrap;
}

header .container-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 20px;
}

header .navibar {
  display: none;
}

header .navibar .btn-login {
  border: 1px solid var(--text-link-color);
  border-radius: 999px;
  padding: .5em 1em;
}

@media screen and (min-width: 601px) {
  header .navibar {
    display: block;
  }

  header .navibar ul {
    display: flex;
    gap: 2em;
  }
}

/* フッター */
footer .navibar {
  display: none;
}

@media screen and (max-width: 600px) {
  footer nav.navibar {
    display: block;
    position: fixed;
    bottom: 0;
    width: 100%;
    background-color: var(--bg-color);
  }

  footer nav.navibar ul {
    padding: 10px;
    display: grid;
    grid-template-columns: 20% 20% 20% 20% 20%;
  }

  footer nav.navibar ul li {
    text-align: center;
  }

  footer nav.navibar a {
    text-decoration: none;
    color: var(--text-color);
  }

  footer nav.navibar span.icon {
    font-size: 10px;
    line-height: 1;
  }

  footer nav.navibar span.icon::before {
    content: "";
    display: block;
    width: 2em;
    height: 2em;
    margin: 0 auto;
    background-position: center;
    background-repeat: no-repeat;
    background-size: contain;
    background-color: var(--text-color);
  }

  footer nav.navibar span.icon.icon-home::before {
    -webkit-mask-image: url(../images/icon-home.svg);
    mask-image: url(../images/icon-home.svg);
  }

  footer nav.navibar span.icon.icon-favorite::before {
    -webkit-mask-image: url(../images/icon-favorite.svg);
    mask-image: url(../images/icon-favorite.svg);
  }

  footer nav.navibar span.icon.icon-search::before {
    -webkit-mask-image: url(../images/icon-search.svg);
    mask-image: url(../images/icon-search.svg);
  }

  footer nav.navibar span.icon.icon-channel::before {
    -webkit-mask-image: url(../images/icon-channel.svg);
    mask-image: url(../images/icon-channel.svg);
  }

  footer nav.navibar span.icon.icon-account::before {
    -webkit-mask-image: url(../images/icon-account.svg);
    mask-image: url(../images/icon-account.svg);
  }
}