@import url("https://fonts.googleapis.com/css2?family=Manrope:wght@400;600;700;800&family=Sora:wght@600;700&display=swap");

:root {
  --sidebar-width: 252px;
  --content-max: 1260px;
  --bg-color-1: #9362ec;
  --bg-color-2: #38e771;
  --bg-color-3: #2a2028;
  --bg-deep-1: #141022;
  --bg-deep-2: #0f1625;
  --pattern-color-a: rgba(147, 98, 236, 0.24);
  --pattern-color-b: rgba(56, 231, 113, 0.14);
  --accent-color: #e78fb0;
  --accent-color-strong: #f2b5cc;
  --accent-color-soft: rgba(231, 143, 176, 0.24);
  --text-main: #eceff8;
  --text-soft: #c7ccdb;
  --text-muted: #98a0b8;
  --panel-alpha: 0.85;
  --panel-bg: rgba(15, 19, 30, var(--panel-alpha));
  --panel-border: rgba(231, 143, 176, 0.3);
  --panel-border-soft: rgba(255, 255, 255, 0.085);
  --shadow-strong: 0 24px 62px rgba(4, 8, 17, 0.46);
  --shadow-soft: 0 10px 28px rgba(2, 4, 10, 0.33);
  --ui-blur: 8px;
  --ui-blur-strong: 10px;
  --pattern-size: 36px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 11px;
  --bg-image-opacity: 0.25;
  --user-bg-image: none;
  --page-default-bg-image-path: "";
}

body.page-pingu {
  --bg-color-1: #11233b;
  --bg-color-2: #1a3559;
  --accent-color: #809cd0;
  --accent-color-strong: #abc1ea;
  --accent-color-soft: rgba(128, 156, 208, 0.24);
  --page-default-bg-image-path: "../img/backgrounds/pingu-background.svg";
  --bg-image-opacity: 0.75;
  --panel-alpha: 0.85;
  background:
    radial-gradient(circle at 10% 4%, rgba(172, 202, 255, 0.3), transparent 35%),
    radial-gradient(circle at 86% 8%, rgba(128, 156, 208, 0.3), transparent 36%),
    linear-gradient(155deg, #11233b, #1a3559 56%, #1f2e48);
}

body.page-yuuki {
  --bg-color-1: #2a1930;
  --bg-color-2: #3a2241;
  --accent-color: #fc98c8;
  --accent-color-strong: #ffc0e0;
  --accent-color-soft: rgba(252, 152, 200, 0.24);
  --page-default-bg-image-path: "../img/backgrounds/yuuki-background.svg";
  --bg-image-opacity: 0.75;
  --panel-alpha: 0.85;
  background:
    radial-gradient(circle at 12% 6%, rgba(255, 186, 227, 0.28), transparent 35%),
    radial-gradient(circle at 82% 10%, rgba(252, 152, 200, 0.25), transparent 36%),
    linear-gradient(158deg, #2a1930, #3a2241 57%, #231526);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

[id] {
  scroll-margin-top: 24px;
}

body {
  margin: 0;
  min-height: 100vh;
  position: relative;
  isolation: isolate;
  overflow-x: hidden;
  font-family: "Manrope", "Segoe UI", sans-serif;
  line-height: 1.6;
  letter-spacing: 0.01em;
  color: var(--text-main);
  background:
    radial-gradient(circle at 14% -8%, rgba(147, 98, 236, 0.32), transparent 42%),
    radial-gradient(circle at 86% -10%, rgba(56, 231, 113, 0.14), transparent 40%),
    radial-gradient(circle at 50% 112%, rgba(231, 143, 176, 0.18), transparent 42%),
    linear-gradient(150deg, var(--bg-deep-1), var(--bg-color-1) 48%, var(--bg-deep-2));
  background-size: 160% 160%;
  text-rendering: optimizeLegibility;
}

body.bg-animated:not(.page-pingu):not(.page-yuuki) {
  animation: hubBgShift 24s ease-in-out infinite;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
}

body::before {
  z-index: -2;
  opacity: 0;
  background:
    linear-gradient(135deg, var(--pattern-color-a) 12%, transparent 12%) 0 0 / 96px 96px,
    linear-gradient(225deg, var(--pattern-color-a) 12%, transparent 12%) 0 0 / 96px 96px,
    linear-gradient(315deg, var(--pattern-color-b) 12%, transparent 12%) 0 0 / 96px 96px,
    linear-gradient(45deg, var(--pattern-color-b) 12%, transparent 12%) 0 0 / 96px 96px;
  transition: opacity 0.35s ease;
  will-change: transform, opacity;
  transform: translateZ(0);
}

body.page-pingu::before,
body.page-yuuki::before {
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.014) 1px, transparent 1px);
  background-size: var(--pattern-size) var(--pattern-size);
}

body.bg-pattern::before {
  opacity: 1;
}

body.bg-animated::before {
  animation: patternFloat 26s linear infinite;
}

body::after {
  z-index: -1;
  background-image: var(--user-bg-image);
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  opacity: var(--bg-image-opacity);
  transition: opacity 0.25s ease;
}

.page-transition-curtain {
  position: fixed;
  inset: 0;
  z-index: 520;
  pointer-events: none;
  opacity: 0;
  background:
    radial-gradient(circle at 20% 8%, rgba(255, 255, 255, 0.08), transparent 34%),
    linear-gradient(160deg, rgba(8, 12, 21, 0.88), rgba(11, 16, 27, 0.92));
  transition: opacity 0.26s ease;
}

.page-transition-curtain.visible {
  opacity: 1;
}

.site-header,
.container,
.site-footer,
.bg-customizer,
.bg-customizer-toggle,
.atmo-layer {
  transition: opacity 0.24s ease, transform 0.24s ease, filter 0.24s ease;
}

body.page-leaving .site-header,
body.page-leaving .container,
body.page-leaving .site-footer,
body.page-leaving .bg-customizer,
body.page-leaving .bg-customizer-toggle,
body.page-leaving .atmo-layer {
  opacity: 0;
  transform: translate3d(0, 6px, 0) scale(0.996);
  filter: blur(1.3px);
}

@keyframes patternFloat {
  0% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(-18px, -12px, 0);
  }
  100% {
    transform: translate3d(0, 0, 0);
  }
}

@keyframes hubBgShift {
  0% {
    background-position: 0% 46%;
  }
  50% {
    background-position: 100% 54%;
  }
  100% {
    background-position: 0% 46%;
  }
}

.skip-link {
  position: absolute;
  top: -3rem;
  left: 1rem;
  z-index: 200;
  border-radius: 10px;
  padding: 0.45rem 0.85rem;
  text-decoration: none;
  color: #fff;
  border: 1px solid var(--panel-border);
  background: #111827;
  transition: top 0.2s ease;
}

.skip-link:focus-visible {
  top: 0.9rem;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  padding: 0.85rem;
  border-right: 1px solid var(--panel-border-soft);
  background: rgba(10, 14, 22, 0.9);
  backdrop-filter: blur(var(--ui-blur));
  box-shadow: var(--shadow-soft);
  z-index: 120;
}

.topbar {
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.secret-trigger {
  width: 100%;
  min-height: 28px;
  border: 1px solid var(--panel-border-soft);
  border-radius: 999px;
  background:
    linear-gradient(110deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.015));
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease, transform 0.2s ease;
}

.secret-trigger:hover,
.secret-trigger:focus-visible {
  border-color: var(--panel-border);
  background:
    linear-gradient(110deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.03));
  transform: translateY(-1px);
}

.secret-trigger-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-color-strong);
  box-shadow: 0 0 9px var(--accent-color-soft);
}

.secret-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 320;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background-color: rgba(6, 9, 16, 0.08);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.secret-modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.secret-modal-backdrop::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0;
  background: rgba(2, 4, 9, 0.96);
  transition: opacity 20s linear;
}

.secret-modal-backdrop.open::before {
  opacity: 1;
}

.secret-lightning-flash {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0;
  background:
    radial-gradient(
      circle at 42% 12%,
      rgba(214, 233, 255, 0.98),
      rgba(157, 201, 255, 0.46) 26%,
      rgba(117, 162, 235, 0.14) 52%,
      transparent 72%
    );
  mix-blend-mode: screen;
}

.secret-lightning-flash.flash {
  opacity: 0.42;
}

.secret-lightning-flash.flash-soft {
  opacity: 0.22;
}

.secret-rain-layer {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.9s ease;
}

.secret-modal-backdrop.rain-active .secret-rain-layer {
  opacity: 1;
}

.secret-rain-drop {
  position: absolute;
  top: -16%;
  width: 1.8px;
  border-radius: 999px;
  background: linear-gradient(
    to bottom,
    rgba(188, 213, 255, 0),
    rgba(196, 220, 255, 0.95)
  );
  box-shadow: 0 0 5px rgba(164, 197, 255, 0.38);
  animation-name: secretRainDropFall;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
  will-change: transform;
}

@keyframes secretRainDropFall {
  0% {
    transform: translate3d(0, -18vh, 0) skewX(-8deg);
  }
  100% {
    transform: translate3d(-3vw, 122vh, 0) skewX(-8deg);
  }
}

.secret-modal {
  position: relative;
  z-index: 3;
  width: min(760px, calc(100vw - 2rem));
  max-height: calc(100vh - 2rem);
  overflow: auto;
  border: 1px solid var(--panel-border);
  border-radius: 18px;
  padding: 1rem 1rem 0.95rem;
  background:
    radial-gradient(circle at top right, var(--accent-color-soft), transparent 42%),
    linear-gradient(165deg, rgba(13, 18, 30, 0.96), rgba(9, 14, 24, 0.96));
  box-shadow: var(--shadow-strong);
}

.secret-modal-close {
  margin-left: auto;
  display: flex;
  border: 1px solid var(--panel-border);
  border-radius: 9px;
  padding: 0.34rem 0.58rem;
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.04);
  font-weight: 700;
  cursor: pointer;
}

.secret-modal-kicker {
  margin: 0.62rem 0 0;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.secret-modal h3 {
  margin: 0.28rem 0 0.4rem;
  font-family: "Sora", "Segoe UI", sans-serif;
  font-size: clamp(1.2rem, 2.8vw, 1.75rem);
}

.secret-media-note {
  margin: 0 0 0.78rem;
  color: var(--text-soft);
}

.secret-modal-hint {
  margin: 0 0 0.82rem;
  color: var(--text-soft);
}

.secret-modal img,
.secret-modal video {
  display: block;
  width: 100%;
  max-height: min(64vh, 560px);
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--panel-border-soft);
  background: rgba(255, 255, 255, 0.03);
  margin-bottom: 0.95rem;
}

.secret-popup-media-hidden {
  display: none !important;
}

.secret-audio-group {
  border: 1px solid var(--panel-border-soft);
  border-radius: 14px;
  padding: 0.8rem;
  background: rgba(255, 255, 255, 0.02);
}

.secret-audio-group h4 {
  margin: 0 0 0.45rem;
  font-family: "Sora", "Segoe UI", sans-serif;
  font-size: 1rem;
}

.secret-audio-row {
  display: grid;
  gap: 0.4rem;
  margin-top: 0.7rem;
  padding-top: 0.7rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.secret-audio-row label {
  font-weight: 700;
  color: var(--text-main);
}

.secret-volume-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.7rem;
  align-items: center;
}

.secret-volume-row input[type="range"] {
  width: 100%;
  accent-color: var(--accent-color-strong);
}

.secret-volume-row output {
  min-width: 3rem;
  text-align: right;
  color: var(--text-soft);
  font-weight: 700;
}

.secret-audio-group audio {
  display: none;
}

body.secret-modal-open {
  overflow: hidden;
}

.feedback-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 340;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(4, 8, 16, 0.72);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.feedback-modal-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.feedback-modal {
  width: min(560px, calc(100vw - 2rem));
  border-radius: 16px;
  border: 1px solid var(--panel-border);
  background:
    radial-gradient(circle at top right, var(--accent-color-soft), transparent 42%),
    linear-gradient(160deg, rgba(14, 18, 30, 0.97), rgba(8, 12, 23, 0.97));
  box-shadow: var(--shadow-strong);
  padding: 1rem;
}

.feedback-modal h3 {
  margin: 0.24rem 0 0.24rem;
  font-family: "Sora", "Segoe UI", sans-serif;
}

.feedback-modal-note {
  margin: 0 0 0.72rem;
  color: var(--text-soft);
}

.feedback-modal-close {
  margin-left: auto;
  display: flex;
  border: 1px solid var(--panel-border);
  border-radius: 9px;
  padding: 0.34rem 0.58rem;
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.04);
  font-weight: 700;
  cursor: pointer;
}

.feedback-form {
  display: grid;
  gap: 0.45rem;
}

.feedback-form label {
  font-weight: 700;
}

.feedback-form input,
.feedback-form textarea {
  border: 1px solid var(--panel-border-soft);
  border-radius: 11px;
  padding: 0.55rem 0.62rem;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-main);
  font: inherit;
}

.feedback-form textarea {
  resize: vertical;
}

.feedback-status {
  min-height: 1.2rem;
  margin: 0.15rem 0 0;
  color: var(--text-soft);
}

.feedback-status.is-success {
  color: #7ee7a8;
}

.feedback-status.is-error {
  color: #ff8fa0;
}

body.feedback-modal-open {
  overflow: hidden;
}

.brand {
  display: flex;
  gap: 0.72rem;
  align-items: center;
  text-decoration: none;
  color: var(--text-main);
  border: 1px solid var(--panel-border-soft);
  border-radius: 16px;
  padding: 0.6rem 0.64rem;
  background: rgba(255, 255, 255, 0.03);
}

.brand img {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 1px solid var(--panel-border);
  background: rgba(255, 255, 255, 0.04);
}

.brand span {
  display: grid;
  gap: 0.08rem;
}

.brand strong {
  font-family: "Sora", "Segoe UI", sans-serif;
  font-size: 1.22rem;
  letter-spacing: 0.03em;
}

.brand span span {
  color: var(--text-soft);
  font-size: 0.88rem;
}

.nav-toggle {
  display: none;
}

.main-nav {
  margin-top: 0.25rem;
}

.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.36rem;
}

.main-nav a {
  display: block;
  text-decoration: none;
  color: var(--text-main);
  border: 1px solid transparent;
  border-radius: 11px;
  font-weight: 700;
  font-size: 1rem;
  padding: 0.6rem 0.72rem;
  transition:
    border-color 0.2s ease,
    background-color 0.2s ease,
    color 0.2s ease;
}

.main-nav a:hover,
.main-nav a:focus-visible,
.main-nav a[aria-current="page"] {
  border-color: var(--panel-border);
  background: linear-gradient(120deg, var(--accent-color-soft), rgba(255, 255, 255, 0.03));
}

.header-note {
  margin-top: auto;
  border: 1px solid var(--panel-border-soft);
  border-radius: 12px;
  padding: 0.62rem 0.68rem;
  font-size: 0.85rem;
  color: var(--text-soft);
  background: rgba(255, 255, 255, 0.02);
}

.container {
  width: min(var(--content-max), calc(100% - 2.8rem));
  margin: 1rem 1.4rem 0 calc(var(--sidebar-width) + 1.4rem);
}

.hero-banner {
  border: 1px solid var(--panel-border-soft);
  border-radius: var(--radius-lg);
  padding: 1.3rem 1.25rem;
  background:
    radial-gradient(circle at right top, rgba(255, 255, 255, 0.06), transparent 38%),
    var(--panel-bg);
  box-shadow: var(--shadow-soft);
}

.eyebrow {
  margin: 0;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

.hero-banner h1 {
  margin: 0.4rem 0 0.45rem;
  font-family: "Sora", "Segoe UI", sans-serif;
  line-height: 1.14;
  font-size: clamp(1.7rem, 4.2vw, 3.25rem);
}

.highlight {
  color: var(--accent-color-strong);
}

.hero-banner p {
  margin: 0;
  color: var(--text-soft);
  max-width: 70ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.62rem;
  margin-top: 1rem;
}

.page-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 1rem;
  align-items: start;
}

.page-grid.page-grid-single {
  grid-template-columns: minmax(0, 1fr);
}

.main-column {
  display: grid;
  gap: 1rem;
}

.panel {
  border: 1px solid var(--panel-border-soft);
  border-radius: var(--radius-lg);
  padding: 1rem;
  background: var(--panel-bg);
  box-shadow: var(--shadow-soft);
  content-visibility: auto;
  contain-intrinsic-size: 1px 360px;
  transform: translateZ(0);
}

.panel-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.4rem 1rem;
  margin-bottom: 0.82rem;
}

.panel-header h2 {
  margin: 0;
  font-family: "Sora", "Segoe UI", sans-serif;
  font-size: clamp(1.16rem, 2vw, 1.62rem);
}

.panel-header p {
  margin: 0;
  color: var(--text-muted);
}

.module-cards,
.person-grid,
.channel-grid,
.faq-grid {
  display: grid;
  gap: 0.72rem;
}

.module-cards {
  grid-template-columns: repeat(auto-fit, minmax(175px, 1fr));
}

.person-grid {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.channel-grid,
.faq-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.module-card,
.person-card,
.channel-card,
.faq-item,
.profile-card {
  border: 1px solid var(--panel-border-soft);
  border-radius: var(--radius-md);
  padding: 0.8rem 0.82rem;
  background: rgba(255, 255, 255, 0.025);
}

.module-card h3,
.person-card h3,
.channel-card h3,
.faq-item h3,
.profile-card h3 {
  margin: 0 0 0.32rem;
  font-size: 1.04rem;
}

.module-card p,
.person-card p,
.channel-card p,
.faq-item p,
.profile-card p {
  margin: 0;
  color: var(--text-soft);
}

.module-link {
  display: inline-flex;
  margin-top: 0.7rem;
  text-decoration: none;
  font-weight: 700;
  color: var(--text-main);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 0.4rem 0.7rem;
  background: var(--accent-color-soft);
}

.tag-row,
.chips,
.badge-list,
.profile-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.46rem;
}

.tag,
.chips span,
.badge {
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  padding: 0.25rem 0.62rem;
  background: rgba(255, 255, 255, 0.045);
  font-size: 0.87rem;
}

.timeline {
  display: grid;
  gap: 0.58rem;
}

.timeline-item {
  border: 1px solid var(--panel-border-soft);
  border-radius: 12px;
  padding: 0.68rem 0.72rem;
  background: rgba(255, 255, 255, 0.02);
}

.timeline-item p {
  margin: 0;
}

.timeline-date {
  margin-bottom: 0.2rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.schedule-grid {
  display: grid;
  gap: 0.58rem;
}

.schedule-row {
  display: grid;
  grid-template-columns: 130px 150px minmax(0, 1fr);
  gap: 0.72rem;
  align-items: center;
  border: 1px solid var(--panel-border-soft);
  border-radius: 12px;
  padding: 0.62rem 0.7rem;
  background: rgba(255, 255, 255, 0.02);
}

.day {
  margin: 0;
  font-weight: 700;
}

.slot {
  margin: 0;
  color: var(--accent-color-strong);
  font-weight: 700;
}

.news-list {
  display: grid;
  gap: 0.68rem;
}

.news-card {
  border: 1px solid var(--panel-border-soft);
  border-radius: 13px;
  padding: 0.8rem 0.84rem;
  background: rgba(255, 255, 255, 0.02);
}

.news-head {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 0.8rem;
}

.news-head h3 {
  margin: 0;
}

.news-date {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.88rem;
}

.news-card p {
  margin: 0.4rem 0 0;
}

.news-toggle {
  margin-top: 0.62rem;
  border: 1px solid var(--panel-border);
  border-radius: 9px;
  padding: 0.35rem 0.62rem;
  background: transparent;
  color: var(--text-main);
  font-weight: 700;
  cursor: pointer;
}

.news-more {
  margin-top: 0.55rem;
  color: var(--text-soft);
}

.stats-sidebar h2 {
  margin: 0 0 0.72rem;
  font-family: "Sora", "Segoe UI", sans-serif;
}

.stat-grid {
  margin: 0;
  display: grid;
  gap: 0.46rem;
}

.stat-row {
  display: grid;
  grid-template-columns: minmax(94px, 1fr) minmax(0, 1fr);
  gap: 0.7rem;
  align-items: start;
  border-top: 1px solid var(--panel-border-soft);
  padding-top: 0.5rem;
}

.stat-row:first-child {
  border-top: 0;
  padding-top: 0;
}

.stat-row dt {
  font-weight: 700;
}

.stat-row dd {
  margin: 0;
  text-align: right;
}

.value-positive {
  color: #64efb7;
}

.value-warning {
  color: #ffb289;
}

.stats-toggle-wrap {
  display: none;
}

.stats-mobile-toggle {
  width: 100%;
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  padding: 0.55rem 0.74rem;
  font-weight: 700;
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.04);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  text-decoration: none;
  border-radius: 10px;
  border: 1px solid transparent;
  font-weight: 700;
  padding: 0.5rem 0.78rem;
}

.btn-primary {
  color: #1c1117;
  background: linear-gradient(140deg, var(--accent-color), var(--accent-color-strong));
}

.btn-secondary,
.btn-ghost {
  color: var(--text-main);
  border-color: var(--panel-border);
  background: rgba(255, 255, 255, 0.045);
}

.profile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.72rem;
}

.point-list {
  margin: 0;
  padding-left: 1.05rem;
  display: grid;
  gap: 0.38rem;
}

.section-note {
  margin: 0 0 0.78rem;
  color: var(--text-soft);
}

.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 0.7rem;
}

.media-card {
  margin: 0;
  border: 1px solid var(--panel-border-soft);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.03);
}

.media-card img {
  width: 100%;
  display: block;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.media-card figcaption {
  padding: 0.48rem 0.62rem;
  color: var(--text-soft);
  font-size: 0.9rem;
}

.sticker-wall {
  display: flex;
  flex-wrap: wrap;
  gap: 0.62rem;
}

.sticker {
  width: min(120px, 30vw);
  max-height: 120px;
  object-fit: contain;
  border: 1px dashed var(--panel-border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  padding: 0.24rem;
}

code {
  border: 1px solid var(--panel-border-soft);
  border-radius: 8px;
  padding: 0.12rem 0.35rem;
  background: rgba(255, 255, 255, 0.06);
  color: #f4f6ff;
}

.site-footer {
  margin: 1rem 1.4rem 1.4rem calc(var(--sidebar-width) + 1.4rem);
}

.footer-inner {
  border: 1px solid var(--panel-border-soft);
  border-radius: 14px;
  padding: 0.72rem 0.8rem;
  background: rgba(7, 10, 16, 0.8);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.62rem;
}

.footer-links a {
  text-decoration: none;
  color: var(--text-soft);
}

.footer-copy {
  margin: 0.45rem 0 0;
  color: var(--text-muted);
  font-size: 0.86rem;
}

.bg-customizer-toggle {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  padding: 0.55rem 0.9rem;
  font-weight: 700;
  color: var(--text-main);
  background: rgba(10, 14, 23, 0.92);
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  z-index: 140;
}

.bg-customizer {
  position: fixed;
  right: 1rem;
  bottom: 4.2rem;
  width: min(350px, calc(100% - 1.4rem));
  border: 1px solid var(--panel-border-soft);
  border-radius: 15px;
  padding: 0.84rem;
  background: rgba(8, 11, 19, 0.96);
  backdrop-filter: blur(var(--ui-blur-strong));
  box-shadow: var(--shadow-strong);
  transform: translateY(10px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 140;
}

.bg-customizer.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.bg-customizer h3 {
  margin: 0;
  font-family: "Sora", "Segoe UI", sans-serif;
  font-size: 1.04rem;
}

body.perf-boost {
  --ui-blur: 0px;
  --ui-blur-strong: 0px;
  --shadow-soft: 0 7px 20px rgba(2, 4, 10, 0.24);
  --shadow-strong: 0 14px 40px rgba(3, 7, 14, 0.3);
}

body.perf-boost .hero-banner,
body.perf-boost .module-card,
body.perf-boost .person-card,
body.perf-boost .channel-card,
body.perf-boost .faq-item,
body.perf-boost .timeline-item,
body.perf-boost .news-card,
body.perf-boost .schedule-row,
body.perf-boost .profile-card {
  transform: translateZ(0);
  will-change: transform;
}

body.hz-120.bg-animated::before {
  animation-duration: 20s;
}

.atmo-layer {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.container,
.site-footer {
  position: relative;
  z-index: 2;
}

.particle {
  position: absolute;
  left: 0;
  top: -16%;
  opacity: var(--opacity, 0.72);
  animation-name: particleFall;
  animation-duration: var(--dur, 16s);
  animation-delay: var(--delay, 0s);
  animation-iteration-count: infinite;
  animation-timing-function: linear;
  will-change: transform;
}

@keyframes particleFall {
  from {
    transform: translate3d(0, -14vh, 0) rotate(var(--rot-start, 0deg));
  }
  to {
    transform: translate3d(var(--drift, 0px), 118vh, 0) rotate(var(--rot-end, 180deg));
  }
}

body.page-yuuki .particle.feather {
  width: var(--size, 11px);
  height: calc(var(--size, 11px) * 2.2);
  border-radius: 68% 68% 52% 52%;
  background: linear-gradient(
    165deg,
    rgba(244, 235, 255, 0.95) 0%,
    rgba(220, 196, 255, 0.72) 48%,
    rgba(184, 151, 255, 0.44) 100%
  );
  filter: drop-shadow(0 0 5px rgba(192, 155, 255, 0.35));
  transform-origin: 50% 34%;
}

body.page-yuuki .particle.feather::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 2px;
  bottom: 2px;
  width: 1px;
  background: rgba(255, 255, 255, 0.5);
  transform: translateX(-50%);
}

body.page-pingu .particle.flake {
  width: var(--size, 8px);
  height: var(--size, 8px);
  border-radius: 50%;
  background: radial-gradient(
    circle at 35% 35%,
    rgba(255, 255, 255, 0.98) 0%,
    rgba(222, 236, 255, 0.9) 58%,
    rgba(205, 223, 255, 0.2) 100%
  );
  box-shadow: 0 0 7px rgba(202, 224, 255, 0.55);
}

body.page-pingu .particle.flake::after {
  content: "";
  position: absolute;
  inset: 34%;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.72);
}

.bg-customizer .hint {
  margin: 0.28rem 0 0.78rem;
  color: var(--text-muted);
  font-size: 0.86rem;
}

.bg-row,
.bg-file {
  display: grid;
  gap: 0.35rem;
  margin-bottom: 0.55rem;
}

.bg-row label,
.bg-file label {
  font-size: 0.86rem;
  color: var(--text-soft);
}

.bg-row input[type="color"] {
  width: 100%;
  height: 2.2rem;
  border: 1px solid var(--panel-border-soft);
  border-radius: 8px;
  background: transparent;
  padding: 0.12rem;
}

.bg-row input[type="checkbox"] {
  width: 1.08rem;
  height: 1.08rem;
}

.bg-row.is-inline {
  grid-template-columns: 1fr auto;
  align-items: center;
}

.bg-range {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.52rem;
  align-items: center;
}

.bg-range output {
  min-width: 40px;
  text-align: right;
  color: var(--text-soft);
  font-size: 0.85rem;
}

.bg-range input[type="range"] {
  width: 100%;
}

.bg-file input[type="file"] {
  border: 1px solid var(--panel-border-soft);
  border-radius: 8px;
  padding: 0.4rem 0.5rem;
  background: rgba(255, 255, 255, 0.03);
}

.bg-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.bg-actions button {
  border: 1px solid var(--panel-border);
  border-radius: 9px;
  padding: 0.36rem 0.62rem;
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.05);
  font-weight: 700;
  cursor: pointer;
}

.bg-status {
  margin: 0.6rem 0 0;
  min-height: 1.2em;
  color: var(--text-soft);
  font-size: 0.86rem;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent-color-strong);
  outline-offset: 2px;
}

@media (max-width: 1140px) {
  .schedule-row {
    grid-template-columns: 110px 130px minmax(0, 1fr);
  }
}

@media (max-width: 980px) {
  [id] {
    scroll-margin-top: 105px;
  }

  .site-header {
    right: 0;
    bottom: auto;
    width: 100%;
    padding: 0.72rem;
    border-right: 0;
    border-bottom: 1px solid var(--panel-border-soft);
  }

  .topbar {
    height: auto;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.6rem;
  }

  .brand {
    min-width: 0;
    flex: 1;
  }

  .brand img {
    width: 44px;
    height: 44px;
  }

  .brand strong {
    font-size: 1.08rem;
  }

  .nav-toggle {
    display: inline-flex;
    border: 1px solid var(--panel-border);
    border-radius: 10px;
    padding: 0.52rem 0.72rem;
    color: var(--text-main);
    font-weight: 700;
    background: rgba(255, 255, 255, 0.03);
  }

  .main-nav {
    width: 100%;
    display: none;
  }

  .main-nav.open {
    display: block;
  }

  .main-nav ul {
    padding-top: 0.15rem;
    border-top: 1px solid var(--panel-border-soft);
  }

  .header-note {
    display: none;
  }

  .secret-trigger {
    display: none;
  }

  .container {
    margin: 5.8rem auto 0;
    width: min(var(--content-max), calc(100% - 1.4rem));
  }

  .page-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .stats-toggle-wrap {
    display: block;
  }

  .stats-sidebar {
    display: none;
  }

  .stats-sidebar.open {
    display: block;
  }

  .site-footer {
    margin: 1rem auto 1.1rem;
    width: min(var(--content-max), calc(100% - 1.4rem));
  }

}

@media (max-width: 720px) {
  .container {
    width: calc(100% - 1rem);
  }

  .hero-banner {
    padding: 1rem 0.9rem;
  }

  .panel {
    padding: 0.82rem;
  }

  .schedule-row {
    grid-template-columns: 1fr;
    gap: 0.28rem;
  }

  .news-head {
    flex-direction: column;
    gap: 0.35rem;
  }

  .stat-row {
    grid-template-columns: 1fr;
    gap: 0.2rem;
  }

  .stat-row dd {
    text-align: left;
  }

  .bg-customizer {
    right: 0.5rem;
    width: calc(100% - 1rem);
  }

  .bg-customizer-toggle {
    right: 0.5rem;
    bottom: 0.6rem;
  }

}

@media (prefers-reduced-motion: reduce) {
  .atmo-layer {
    display: none;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}