/* =============================================================
   Material Design 3 tokens & base components
   Brand: uriurioo.shop (Primary = #64629D 系 紫)
   ============================================================= */

/* ---- Google Fonts (Roboto + Material Symbols) ---- */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&family=Noto+Sans+JP:wght@300;400;500;700&family=Material+Symbols+Rounded:opsz,wght,FILL,GRAD@24,400,0,0&display=swap');

/* =========================
   Sys Color Roles (Light)
   ========================= */
:root{
  color-scheme: light dark;

  /* Primary */
  --md-sys-color-primary:                 #4E4C8F;
  --md-sys-color-on-primary:              #FFFFFF;
  --md-sys-color-primary-container:       #E3DFFF;
  --md-sys-color-on-primary-container:    #0A0664;

  /* Secondary */
  --md-sys-color-secondary:               #5D5C72;
  --md-sys-color-on-secondary:            #FFFFFF;
  --md-sys-color-secondary-container:     #E3E0F9;
  --md-sys-color-on-secondary-container:  #1A192C;

  /* Tertiary */
  --md-sys-color-tertiary:                #79536A;
  --md-sys-color-on-tertiary:             #FFFFFF;
  --md-sys-color-tertiary-container:      #FFD8EB;
  --md-sys-color-on-tertiary-container:   #2F1125;

  /* Error */
  --md-sys-color-error:                   #BA1A1A;
  --md-sys-color-on-error:                #FFFFFF;
  --md-sys-color-error-container:         #FFDAD6;
  --md-sys-color-on-error-container:      #410002;

  /* Neutral / Surface */
  --md-sys-color-background:              #FCF8FF;
  --md-sys-color-on-background:           #1B1B21;
  --md-sys-color-surface:                 #FCF8FF;
  --md-sys-color-on-surface:              #1B1B21;
  --md-sys-color-surface-variant:         #E4E1EC;
  --md-sys-color-on-surface-variant:      #47464F;
  --md-sys-color-surface-dim:             #DCD9E0;
  --md-sys-color-surface-bright:          #FCF8FF;
  --md-sys-color-surface-container-lowest:#FFFFFF;
  --md-sys-color-surface-container-low:   #F6F2FA;
  --md-sys-color-surface-container:       #F0ECF4;
  --md-sys-color-surface-container-high:  #EAE7EF;
  --md-sys-color-surface-container-highest:#E5E1E9;

  /* Outline */
  --md-sys-color-outline:                 #777680;
  --md-sys-color-outline-variant:         #C8C5D0;

  /* Inverse & scrim */
  --md-sys-color-inverse-surface:         #303036;
  --md-sys-color-inverse-on-surface:      #F3EFF7;
  --md-sys-color-inverse-primary:         #C4C0FF;
  --md-sys-color-shadow:                  #000000;
  --md-sys-color-scrim:                   #000000;
  --md-sys-color-surface-tint:            var(--md-sys-color-primary);

  /* =========================
     Typography
     ========================= */
  --md-sys-typescale-brand-font: 'Noto Sans JP', 'Roboto', system-ui, -apple-system, 'Segoe UI', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', sans-serif;
  --md-sys-typescale-plain-font: 'Roboto', 'Noto Sans JP', system-ui, sans-serif;

  /* =========================
     Shape tokens
     ========================= */
  --md-sys-shape-corner-none:        0;
  --md-sys-shape-corner-extra-small: 4px;
  --md-sys-shape-corner-small:       8px;
  --md-sys-shape-corner-medium:      12px;
  --md-sys-shape-corner-large:       16px;
  --md-sys-shape-corner-extra-large: 28px;
  --md-sys-shape-corner-full:        9999px;

  /* =========================
     Elevation (box-shadow)
     ========================= */
  --md-sys-elevation-0: none;
  --md-sys-elevation-1: 0 1px 2px 0 rgba(0,0,0,.30), 0 1px 3px 1px rgba(0,0,0,.15);
  --md-sys-elevation-2: 0 1px 2px 0 rgba(0,0,0,.30), 0 2px 6px 2px rgba(0,0,0,.15);
  --md-sys-elevation-3: 0 1px 3px 0 rgba(0,0,0,.30), 0 4px 8px 3px rgba(0,0,0,.15);
  --md-sys-elevation-4: 0 2px 3px 0 rgba(0,0,0,.30), 0 6px 10px 4px rgba(0,0,0,.15);
  --md-sys-elevation-5: 0 4px 4px 0 rgba(0,0,0,.30), 0 8px 12px 6px rgba(0,0,0,.15);

  /* State layer opacities */
  --md-sys-state-hover-opacity:    0.08;
  --md-sys-state-focus-opacity:    0.10;
  --md-sys-state-pressed-opacity:  0.10;
  --md-sys-state-dragged-opacity:  0.16;

  /* Motion */
  --md-sys-motion-easing-standard: cubic-bezier(0.2, 0, 0, 1);
  --md-sys-motion-easing-emphasized: cubic-bezier(0.2, 0, 0, 1);
  --md-sys-motion-duration-short2:  100ms;
  --md-sys-motion-duration-short4:  200ms;
  --md-sys-motion-duration-medium2: 300ms;
}

/* =========================
   Sys Color Roles (Dark)
   ========================= */
@media (prefers-color-scheme: dark){
  :root{
    --md-sys-color-primary:                 #C4C0FF;
    --md-sys-color-on-primary:              #1D1470;
    --md-sys-color-primary-container:       #363477;
    --md-sys-color-on-primary-container:    #E3DFFF;

    --md-sys-color-secondary:               #C6C4DD;
    --md-sys-color-on-secondary:            #2F2E42;
    --md-sys-color-secondary-container:     #454559;
    --md-sys-color-on-secondary-container:  #E3E0F9;

    --md-sys-color-tertiary:                #E9B9D1;
    --md-sys-color-on-tertiary:             #46263A;
    --md-sys-color-tertiary-container:      #5F3C51;
    --md-sys-color-on-tertiary-container:   #FFD8EB;

    --md-sys-color-error:                   #FFB4AB;
    --md-sys-color-on-error:                #690005;
    --md-sys-color-error-container:         #93000A;
    --md-sys-color-on-error-container:      #FFDAD6;

    --md-sys-color-background:              #131318;
    --md-sys-color-on-background:           #E5E1E9;
    --md-sys-color-surface:                 #131318;
    --md-sys-color-on-surface:              #E5E1E9;
    --md-sys-color-surface-variant:         #47464F;
    --md-sys-color-on-surface-variant:      #C8C5D0;
    --md-sys-color-surface-dim:             #131318;
    --md-sys-color-surface-bright:          #39383F;
    --md-sys-color-surface-container-lowest:#0E0E13;
    --md-sys-color-surface-container-low:   #1B1B21;
    --md-sys-color-surface-container:       #1F1F25;
    --md-sys-color-surface-container-high:  #2A292F;
    --md-sys-color-surface-container-highest:#35343A;

    --md-sys-color-outline:                 #918F9A;
    --md-sys-color-outline-variant:         #47464F;

    --md-sys-color-inverse-surface:         #E5E1E9;
    --md-sys-color-inverse-on-surface:      #303036;
    --md-sys-color-inverse-primary:         #4E4C8F;
  }
}

/* =========================
   Reset & base
   ========================= */
*,
*::before,
*::after{
  box-sizing: border-box;
}

html{
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body{
  margin: 0;
  padding: 0;
  min-height: 100vh;
  font-family: var(--md-sys-typescale-brand-font);
  font-size: 16px;
  line-height: 1.5;
  color: var(--md-sys-color-on-background);
  background-color: var(--md-sys-color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img{
  max-width: 100%;
  height: auto;
  display: block;
}

a{
  color: var(--md-sys-color-primary);
  text-decoration: none;
  transition: color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

a:hover{
  color: var(--md-sys-color-on-primary-container);
  text-decoration: underline;
}

ul, ol{
  padding: 0;
  margin: 0;
  list-style: none;
}

/* =========================
   Typography classes (M3 type scale)
   ========================= */
.md-display-large  { font-size: 57px; line-height: 64px; font-weight: 400; letter-spacing: -0.25px; }
.md-display-medium { font-size: 45px; line-height: 52px; font-weight: 400; }
.md-display-small  { font-size: 36px; line-height: 44px; font-weight: 400; }

.md-headline-large  { font-size: 32px; line-height: 40px; font-weight: 400; }
.md-headline-medium { font-size: 28px; line-height: 36px; font-weight: 400; }
.md-headline-small  { font-size: 24px; line-height: 32px; font-weight: 400; }

.md-title-large  { font-size: 22px; line-height: 28px; font-weight: 500; }
.md-title-medium { font-size: 16px; line-height: 24px; font-weight: 500; letter-spacing: 0.15px; }
.md-title-small  { font-size: 14px; line-height: 20px; font-weight: 500; letter-spacing: 0.1px; }

.md-body-large  { font-size: 16px; line-height: 24px; font-weight: 400; letter-spacing: 0.5px; }
.md-body-medium { font-size: 14px; line-height: 20px; font-weight: 400; letter-spacing: 0.25px; }
.md-body-small  { font-size: 12px; line-height: 16px; font-weight: 400; letter-spacing: 0.4px; }

.md-label-large  { font-size: 14px; line-height: 20px; font-weight: 500; letter-spacing: 0.1px; }
.md-label-medium { font-size: 12px; line-height: 16px; font-weight: 500; letter-spacing: 0.5px; }
.md-label-small  { font-size: 11px; line-height: 16px; font-weight: 500; letter-spacing: 0.5px; }

/* Default heading sizes */
h1{ font: 400 32px/40px var(--md-sys-typescale-brand-font); margin: 0 0 16px; color: var(--md-sys-color-on-surface); }
h2{ font: 400 28px/36px var(--md-sys-typescale-brand-font); margin: 0 0 12px; color: var(--md-sys-color-on-surface); }
h3{ font: 500 22px/28px var(--md-sys-typescale-brand-font); margin: 0 0 12px; color: var(--md-sys-color-on-surface); }
h4{ font: 500 16px/24px var(--md-sys-typescale-brand-font); margin: 0 0 8px;  color: var(--md-sys-color-on-surface); }
h5{ font: 500 14px/20px var(--md-sys-typescale-brand-font); margin: 0 0 8px;  color: var(--md-sys-color-on-surface); }
p { margin: 0 0 12px; color: var(--md-sys-color-on-surface); }

/* =========================
   Layout helpers
   ========================= */
.md-container{
  width: min(1200px, 92%);
  margin-inline: auto;
}

.md-section{
  padding-block: 48px;
}

.md-stack{ display: flex; flex-direction: column; gap: 16px; }
.md-row  { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }

/* =========================
   Top App Bar
   ========================= */
.md-top-app-bar{
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 16px;
  padding: 8px 24px;
  min-height: 64px;
  background-color: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  box-shadow: var(--md-sys-elevation-0);
  transition: box-shadow var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
              background-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}
.md-top-app-bar > *{
  align-self: center;
}

.md-top-app-bar--scrolled{
  background-color: var(--md-sys-color-surface-container);
  box-shadow: var(--md-sys-elevation-2);
}

.md-top-app-bar__title{
  flex: 1;
  min-width: 0;
  font: 500 22px/1 var(--md-sys-typescale-brand-font);
  margin: 0;
  padding: 0;
  color: var(--md-sys-color-on-surface);
  display: inline-flex;
  align-items: center;
}

.md-top-app-bar__nav{
  display: inline-flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: 4px;
}

.md-top-app-bar__nav a{
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: var(--md-sys-shape-corner-full);
  color: var(--md-sys-color-on-surface);
  font: 500 14px/20px var(--md-sys-typescale-brand-font);
  letter-spacing: 0.1px;
  transition: background-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
              color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.md-top-app-bar__nav a:hover{
  background-color: color-mix(in srgb, var(--md-sys-color-on-surface) 8%, transparent);
  text-decoration: none;
}

.md-top-app-bar__nav a:focus-visible{
  background-color: color-mix(in srgb, var(--md-sys-color-on-surface) 10%, transparent);
  outline: none;
}

/* =========================
   Buttons
   ========================= */
.md-button{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  padding: 10px 24px;
  border: none;
  border-radius: var(--md-sys-shape-corner-full);
  font: 500 14px/20px var(--md-sys-typescale-brand-font);
  letter-spacing: 0.1px;
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
              box-shadow var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
              color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

/* Filled button */
.md-button--filled{
  background-color: var(--md-sys-color-primary);
  color: var(--md-sys-color-on-primary);
  box-shadow: var(--md-sys-elevation-0);
}
.md-button--filled:hover{
  background-color: color-mix(in srgb, var(--md-sys-color-on-primary) 8%, var(--md-sys-color-primary));
  box-shadow: var(--md-sys-elevation-1);
  color: var(--md-sys-color-on-primary);
  text-decoration: none;
}
.md-button--filled:active{
  box-shadow: var(--md-sys-elevation-0);
  background-color: color-mix(in srgb, var(--md-sys-color-on-primary) 10%, var(--md-sys-color-primary));
}

/* Tonal button */
.md-button--tonal{
  background-color: var(--md-sys-color-secondary-container);
  color: var(--md-sys-color-on-secondary-container);
}
.md-button--tonal:hover{
  background-color: color-mix(in srgb, var(--md-sys-color-on-secondary-container) 8%, var(--md-sys-color-secondary-container));
  box-shadow: var(--md-sys-elevation-1);
  color: var(--md-sys-color-on-secondary-container);
  text-decoration: none;
}

/* Outlined button */
.md-button--outlined{
  background-color: transparent;
  color: var(--md-sys-color-primary);
  border: 1px solid var(--md-sys-color-outline);
}
.md-button--outlined:hover{
  background-color: color-mix(in srgb, var(--md-sys-color-primary) 8%, transparent);
  color: var(--md-sys-color-primary);
  text-decoration: none;
}

/* Text button */
.md-button--text{
  background-color: transparent;
  color: var(--md-sys-color-primary);
  padding: 10px 12px;
}
.md-button--text:hover{
  background-color: color-mix(in srgb, var(--md-sys-color-primary) 8%, transparent);
  color: var(--md-sys-color-primary);
  text-decoration: none;
}

/* =========================
   Cards
   ========================= */
.md-card{
  border-radius: var(--md-sys-shape-corner-large);
  padding: 16px;
  background-color: var(--md-sys-color-surface-container-low);
  color: var(--md-sys-color-on-surface);
  transition: background-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
              box-shadow var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}

.md-card--elevated{
  background-color: var(--md-sys-color-surface-container-low);
  box-shadow: var(--md-sys-elevation-1);
}
.md-card--elevated:hover{
  box-shadow: var(--md-sys-elevation-2);
  background-color: var(--md-sys-color-surface-container);
}

.md-card--filled{
  background-color: var(--md-sys-color-surface-container-highest);
  box-shadow: var(--md-sys-elevation-0);
}

.md-card--outlined{
  background-color: var(--md-sys-color-surface);
  border: 1px solid var(--md-sys-color-outline-variant);
  box-shadow: var(--md-sys-elevation-0);
}

/* Card media */
.md-card__media{
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--md-sys-shape-corner-medium);
  display: block;
  margin: 0 0 16px;
  background-color: var(--md-sys-color-surface-variant);
}

.md-card__title{
  font: 500 22px/28px var(--md-sys-typescale-brand-font);
  color: var(--md-sys-color-on-surface);
  margin: 0 0 8px;
}

.md-card__body{
  color: var(--md-sys-color-on-surface-variant);
  font-size: 14px;
  line-height: 20px;
  margin: 0;
}

/* =========================
   Chips
   ========================= */
.md-chip{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 32px;
  padding: 6px 12px;
  border-radius: var(--md-sys-shape-corner-small);
  background-color: var(--md-sys-color-surface-container-low);
  color: var(--md-sys-color-on-surface-variant);
  border: 1px solid var(--md-sys-color-outline-variant);
  font: 500 14px/20px var(--md-sys-typescale-brand-font);
  letter-spacing: 0.1px;
  cursor: default;
}

.md-chip--assist{
  color: var(--md-sys-color-on-secondary-container);
  background-color: var(--md-sys-color-secondary-container);
  border-color: transparent;
}

/* =========================
   List
   ========================= */
.md-list{
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.md-list__item{
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 56px;
  padding: 12px 16px;
  border-radius: var(--md-sys-shape-corner-medium);
  color: var(--md-sys-color-on-surface);
  background-color: transparent;
  transition: background-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}
.md-list__item:hover{
  background-color: color-mix(in srgb, var(--md-sys-color-on-surface) 8%, transparent);
}

/* =========================
   Divider
   ========================= */
.md-divider{
  height: 1px;
  border: 0;
  background-color: var(--md-sys-color-outline-variant);
  margin: 24px 0;
}

/* =========================
   Section headline (with underline)
   ========================= */
.md-section-headline{
  display: inline-block;
  font: 500 22px/28px var(--md-sys-typescale-brand-font);
  color: var(--md-sys-color-on-surface);
  padding: 0 0 8px;
  margin: 0 0 20px;
  border-bottom: 2px solid var(--md-sys-color-primary);
}

/* =========================
   Text field
   ========================= */
.md-textfield{
  display: block;
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--md-sys-shape-corner-extra-small);
  background-color: var(--md-sys-color-surface-container-highest);
  border: 1px solid var(--md-sys-color-outline);
  color: var(--md-sys-color-on-surface);
  font: 400 16px/24px var(--md-sys-typescale-brand-font);
  transition: border-color var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard),
              box-shadow var(--md-sys-motion-duration-short4) var(--md-sys-motion-easing-standard);
}
.md-textfield:focus{
  outline: none;
  border-color: var(--md-sys-color-primary);
  box-shadow: 0 0 0 1px var(--md-sys-color-primary);
}

/* =========================
   Footer
   ========================= */
.md-footer{
  margin-top: 64px;
  padding: 24px;
  text-align: center;
  background-color: var(--md-sys-color-surface-container-high);
  color: var(--md-sys-color-on-surface-variant);
}

/* =========================
   Focus ring
   ========================= */
:where(a, button, .md-button, .md-card):focus-visible{
  outline: 2px solid var(--md-sys-color-primary);
  outline-offset: 2px;
}

/* =========================
   Material Symbols
   ========================= */
.material-symbols-rounded{
  font-family: 'Material Symbols Rounded';
  font-weight: normal;
  font-style: normal;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  -webkit-font-feature-settings: 'liga';
  -webkit-font-smoothing: antialiased;
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

/* =========================
   Small screens (< 600px = M3 compact)
   ========================= */
@media (max-width: 599px){
  .md-top-app-bar{
    padding: 8px 12px;
    flex-wrap: wrap;
    min-height: 56px;
  }
  .md-top-app-bar__title{
    font-size: 18px;
    line-height: 1.2;
    flex-basis: 100%;
    text-align: center;
    justify-content: center;
  }
  .md-top-app-bar__nav{
    flex-basis: 100%;
    justify-content: center;
    flex-wrap: wrap;
  }
  .md-top-app-bar__nav a{
    padding: 6px 10px;
    font-size: 13px;
  }

  h1{ font-size: 24px; line-height: 32px; }
  h2{ font-size: 22px; line-height: 28px; }
  h3{ font-size: 20px; line-height: 26px; }
}

/* =========================
   Site Footer (extended)
   ========================= */
.site-footer{
  margin-top: 64px;
  padding: 32px 24px;
  background-color: var(--md-sys-color-surface-container-high);
  color: var(--md-sys-color-on-surface-variant);
}
.site-footer__inner{
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
  text-align: center;
}
.site-footer__nav ul{
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  justify-content: center;
}
.site-footer__nav a{
  color: var(--md-sys-color-on-surface-variant);
  text-decoration: none;
  font-size: 14px;
  padding: 4px 2px;
}
.site-footer__nav a:hover{
  color: var(--md-sys-color-primary);
  text-decoration: underline;
}
.site-footer__copy{
  margin: 0;
  font-size: 12px;
  opacity: 0.75;
}

/* =========================
   Breadcrumb
   ========================= */
.md-breadcrumb{
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 16px 0;
  font-size: 13px;
  line-height: 1.6;
}
.md-breadcrumb ol{
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 6px;
  color: var(--md-sys-color-on-surface-variant);
}
.md-breadcrumb li{
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.md-breadcrumb li + li::before{
  content: "›";
  opacity: 0.6;
}
.md-breadcrumb a{
  color: var(--md-sys-color-primary);
  text-decoration: none;
}
.md-breadcrumb a:hover{
  text-decoration: underline;
}
.md-breadcrumb [aria-current="page"]{
  opacity: 0.75;
}

/* =========================
   Related Links
   ========================= */
.related-links{
  margin-top: 48px;
  padding: 20px 16px;
  border-top: 1px solid var(--md-sys-color-outline-variant);
}
.related-links__title{
  font-size: 16px;
  margin: 0 0 12px;
  color: var(--md-sys-color-on-surface);
}
.related-links__list{
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.related-links__list a{
  color: var(--md-sys-color-primary);
  text-decoration: none;
}
.related-links__list a:hover{
  text-decoration: underline;
}