/* ============================================================
   AMASATO MOCHI — style.css
   白ベースのやわらかいデザイン / 幾何学模様の背景
   ライト・ダーク切替 + ゲーミングモード（虹色）
   ============================================================ */

/* ---------- design tokens ---------- */
:root {
  /* light (default) */
  --bg: #FFFDFC;
  --bg-soft: #FBF6F6;
  --card: #FFFFFF;
  --ink: #413A4B;
  --ink-soft: #837B92;
  --line: #F1E7EC;
  --accent: #F27FA5;
  --accent-ink: #E15E8C;
  --accent-soft: #FDEEF3;
  --c-music: #F7A6C6;
  --c-video: #8ECFF0;
  --c-mix:   #BCA9F2;
  --shadow: 0 10px 34px rgba(216, 168, 191, .18);
  --shadow-sm: 0 4px 14px rgba(216, 168, 191, .14);
  --radius: 18px;
  --radius-sm: 12px;
  --geo-opacity: .5;
  --font-jp: "Zen Maru Gothic", "Hiragino Maru Gothic ProN", sans-serif;
  --font-en: "Quicksand", var(--font-jp);
  --font-mono: "M PLUS 1 Code", "Consolas", monospace;
}

[data-theme="dark"] {
  --bg: #1C1823;
  --bg-soft: #221D2B;
  --card: #272130;
  --ink: #EEE9F3;
  --ink-soft: #B2AAC0;
  --line: #383046;
  --accent: #F48FB0;
  --accent-ink: #F8A9C3;
  --accent-soft: #35283266;
  --c-music: #E997BB;
  --c-video: #7EBEE0;
  --c-mix:   #AC99E6;
  --shadow: 0 10px 34px rgba(0, 0, 0, .35);
  --shadow-sm: 0 4px 14px rgba(0, 0, 0, .3);
  --geo-opacity: .22;
}

/* ---------- base ---------- */
/* ホスティング事業者の挿入バナーは非表示（規約上許可されているもの） */
#vdbanner { display: none !important; height: 0 !important; margin: 0 !important; padding: 0 !important; }

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-jp);
  font-size: 1.04rem;
  font-weight: 400;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.85;
  letter-spacing: .02em;
  transition: background .35s ease, color .35s ease;
}
img { max-width: 100%; }
a { color: var(--accent-ink); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { opacity: .85; }
.mono { font-family: var(--font-mono); letter-spacing: .04em; }
.small { font-size: .82rem; }
.nowrap { white-space: nowrap; }
.sp-only { display: none; }

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--card); padding: .5em 1em; border-radius: 0 0 10px 0; z-index: 100;
}
.skip-link:focus { left: 0; }

::selection { background: var(--accent-soft); color: var(--accent-ink); }

/* ---------- 幾何学模様の背景 ---------- */
.bg-geo {
  position: fixed; inset: 0; z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(560px 380px at 12% 8%,  color-mix(in srgb, var(--c-music) 9%, transparent), transparent 70%),
    radial-gradient(620px 420px at 88% 20%, color-mix(in srgb, var(--c-video) 8%, transparent), transparent 70%),
    radial-gradient(640px 460px at 50% 96%, color-mix(in srgb, var(--c-mix) 8%, transparent), transparent 72%);
}
.bg-geo::before {
  content: "";
  position: absolute; inset: -240px;
  opacity: var(--geo-opacity);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='340' height='340' viewBox='0 0 340 340'%3E%3Cg%3E%3Cpath d='M62 44l2.2 5.8L70 52l-5.8 2.2L62 60l-2.2-5.8L54 52l5.8-2.2z' fill='%23f2b3cc'/%3E%3Ccircle cx='236' cy='92' r='2' fill='%23aed9f0'/%3E%3Cpath d='M278 238l1.8 4.7 4.7 1.8-4.7 1.8-1.8 4.7-1.8-4.7-4.7-1.8 4.7-1.8z' fill='%23c9baf0'/%3E%3Ccircle cx='124' cy='196' r='1.6' fill='%23f2b3cc'/%3E%3Ccircle cx='34' cy='296' r='2' fill='%23c9baf0'/%3E%3Cpath d='M186 310l1.5 3.9 3.9 1.5-3.9 1.5-1.5 3.9-1.5-3.9-3.9-1.5 3.9-1.5z' fill='%23aed9f0'/%3E%3Ccircle cx='308' cy='30' r='1.6' fill='%23f2b3cc'/%3E%3C/g%3E%3C/svg%3E");
  background-size: 340px 340px;
  animation: geoDrift 140s linear infinite;
}
@keyframes geoDrift {
  from { transform: translate(0, 0); }
  to   { transform: translate(340px, 340px); }
}

/* ---------- header ---------- */
.site-head {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
  padding: .7rem clamp(1rem, 4vw, 2.4rem);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: inline-flex; align-items: center; gap: .55rem;
  text-decoration: none; color: var(--ink);
}
.brand-name { font-weight: 700; font-size: 1.02rem; letter-spacing: .05em; white-space: nowrap; }
.brand-dots { display: inline-flex; gap: 4px; }
.brand-dots i {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--c-music);
}
.brand-dots i:nth-child(2) { background: var(--c-video); }
.brand-dots i:nth-child(3) { background: var(--c-mix); }

.site-nav { display: flex; align-items: center; gap: clamp(.4rem, 2vw, 1.1rem); }
.site-nav a {
  text-decoration: none; color: var(--ink-soft);
  font-family: var(--font-en); font-weight: 600; font-size: .98rem;
  padding: .35em .7em; border-radius: 999px;
  transition: color .2s, background .2s;
}
.site-nav a:hover { color: var(--accent-ink); background: var(--accent-soft); opacity: 1; }
.site-nav a.is-active { color: var(--accent-ink); }
.site-nav .nav-cta {
  color: #fff; background: var(--accent);
  box-shadow: var(--shadow-sm);
}
.site-nav .nav-cta:hover { color: #fff; background: var(--accent-ink); }

/* テーマ切替ボタン */
.theme-toggle {
  display: inline-grid; place-items: center;
  width: 38px; height: 38px;
  border: 1px solid var(--line); border-radius: 50%;
  background: var(--card); color: var(--ink-soft);
  cursor: pointer;
  transition: transform .25s ease, color .2s, border-color .2s;
}
.theme-toggle:hover { color: var(--accent-ink); border-color: var(--accent); transform: rotate(18deg); }
.theme-toggle svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.theme-toggle .ic-moon { display: none; }
[data-theme="dark"] .theme-toggle .ic-sun { display: none; }
[data-theme="dark"] .theme-toggle .ic-moon { display: block; fill: currentColor; stroke: none; }

/* メンテナンスプレビューバナー */
.maint-banner {
  background: #FFF3DA; color: #8A6B2F;
  border-bottom: 1px solid #F3E2BC;
  padding: .5rem 1.2rem; font-size: .85rem; text-align: center;
}
[data-theme="dark"] .maint-banner { background: #3A3222; color: #E8CF9A; border-color: #4A4130; }
.maint-banner a { color: inherit; font-weight: 700; }

/* ---------- layout ---------- */
main { display: block; }
section { padding: clamp(3rem, 8vw, 5.5rem) clamp(1rem, 5vw, 2.4rem); }
.sec-head { max-width: 1060px; margin: 0 auto 2.4rem; }
.sec-title {
  margin: 0; font-family: var(--font-en);
  font-size: clamp(1.7rem, 4vw, 2.3rem); font-weight: 700;
  letter-spacing: .04em;
}
.sec-title::after {
  content: ""; display: block; width: 44px; height: 5px;
  margin-top: .45rem; border-radius: 99px;
  background: linear-gradient(90deg, var(--c-music), var(--c-video), var(--c-mix));
}
.sec-sub { margin: .6rem 0 0; color: var(--ink-soft); font-size: .9rem; }
.sec-head-row { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }

.view-toggle {
  display: inline-flex; gap: 2px;
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: 999px; padding: 3px;
}
.view-btn {
  display: inline-flex; align-items: center; gap: .35rem;
  font-family: inherit; font-weight: 700; font-size: .82rem;
  color: var(--ink-soft); background: transparent;
  border: none; border-radius: 999px;
  padding: .3em 1em; cursor: pointer;
  transition: color .2s, background .2s;
}
.view-btn svg { width: 15px; height: 15px; fill: currentColor; }
.view-btn:hover { color: var(--accent-ink); }
.view-btn.is-active { color: var(--accent-ink); background: var(--card); box-shadow: var(--shadow-sm); }

/* ---------- hero ---------- */
.hero {
  position: relative; overflow: hidden;
  min-height: min(78vh, 640px);
  display: grid; place-items: center;
  text-align: center;
  padding-top: clamp(3rem, 9vw, 5rem);
}
.hero-wave { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-inner { position: relative; }
.hero-eyebrow {
  margin: 0 0 .4rem; font-family: var(--font-en); font-weight: 600;
  color: var(--accent-ink); letter-spacing: .28em; text-transform: uppercase;
  font-size: .82rem;
}
.hero-title { margin: 0; line-height: 1.25; }
.hero-jp {
  display: block; font-size: clamp(2.4rem, 7vw, 4rem); font-weight: 700;
}
.hero-en {
  display: block; margin-top: .2rem;
  font-family: var(--font-en); font-weight: 600;
  font-size: clamp(.95rem, 2.4vw, 1.15rem);
  letter-spacing: .42em; text-indent: .42em;
  color: var(--ink-soft);
}
.hero-tagline { margin: 1.1rem 0 0; color: var(--ink-soft); }
.hero-meters {
  display: flex; gap: .6rem; justify-content: center; flex-wrap: wrap;
  margin-top: 1.5rem;
}
.meter {
  font-family: var(--font-en); font-weight: 600; font-size: .85rem;
  padding: .34em 1em; border-radius: 999px;
  color: var(--ink);
  background: color-mix(in srgb, var(--c, var(--accent)) 26%, var(--card));
  border: 1px solid color-mix(in srgb, var(--c, var(--accent)) 45%, transparent);
}

/* ---------- works（トラック＆クリップ） ---------- */
.works { background: transparent; }
.daw { max-width: 1060px; margin: 0 auto; display: grid; grid-template-columns: minmax(0, 1fr); gap: 1.7rem; }
.track { --c: var(--accent); min-width: 0; position: relative; }
/* レーンの端に続きがあることを示すフェード */
.track::before, .track::after {
  content: ""; position: absolute; top: 2.6rem; bottom: .6rem; width: 46px;
  pointer-events: none; opacity: 0; transition: opacity .25s ease; z-index: 2;
}
.track::before { left: -4px; background: linear-gradient(90deg, var(--bg) 12%, transparent); }
.track::after  { right: -4px; background: linear-gradient(270deg, var(--bg) 12%, transparent); }
.track.can-l::before { opacity: 1; }
.track.can-r::after  { opacity: 1; }
.track[data-cat="music"] { --c: var(--c-music); }
.track[data-cat="video"] { --c: var(--c-video); }
.track[data-cat="mix"]   { --c: var(--c-mix); }

.track-head {
  display: flex; align-items: center; gap: .55rem;
  margin-bottom: .55rem;
}
.track-code {
  display: inline-grid; place-items: center;
  width: 30px; height: 30px; border-radius: 10px;
  font-family: var(--font-en); font-weight: 700; font-size: .85rem;
  color: #fff; background: var(--c);
}
.track-label { font-weight: 700; }
.track-count {
  font-family: var(--font-en); font-size: .8rem; color: var(--ink-soft);
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: 999px; padding: .05em .65em;
}

.track-lane {
  display: flex; gap: .8rem;
  overflow-x: auto; padding: .3rem .2rem .8rem;
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--c) 60%, transparent) transparent;
  cursor: grab;
}
.track-lane:active { cursor: grabbing; }

/* 一覧表示: 折り返してすべて見えるグリッドに */
.view-grid .track-lane {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(235px, 1fr));
  overflow: visible;
  cursor: auto;
}
.view-grid .track-lane:active { cursor: auto; }
.view-grid .clip { width: auto; }

.clip {
  flex: 0 0 auto; width: min(285px, 78vw);
  text-align: left;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--card); color: var(--ink);
  padding: .95rem 1.05rem .8rem;
  font-family: inherit; cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
  position: relative; overflow: hidden;
}
.clip:hover, .clip:focus-visible {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--c) 65%, var(--line));
  box-shadow: var(--shadow);
  outline: none;
}
.clip-bar {
  position: absolute; left: 0; top: 0; bottom: 0; width: 6px;
  background: var(--c); border-radius: 0 4px 4px 0;
}
.clip-catalog {
  display: inline-block;
  font-family: var(--font-en); font-weight: 600; font-size: .72rem;
  letter-spacing: .08em;
  color: color-mix(in srgb, var(--c) 72%, var(--ink));
  background: color-mix(in srgb, var(--c) 15%, var(--card));
  border-radius: 999px; padding: .05em .7em; margin-bottom: .4rem;
}
.clip-title { display: block; font-weight: 700; font-size: 1.08rem; line-height: 1.55; }
.clip-meta { display: block; margin-top: .3rem; font-size: .82rem; color: var(--ink-soft); font-family: var(--font-en); }
.clip-wave {
  display: flex; gap: 3px; align-items: flex-end; height: 16px; margin-top: .65rem;
}
.clip-wave i {
  width: 4px; border-radius: 2px;
  background: color-mix(in srgb, var(--c) 55%, var(--card));
  height: 30%;
}
.clip-wave i:nth-child(2n) { height: 65%; }
.clip-wave i:nth-child(3n) { height: 45%; }
.clip-wave i:nth-child(5n) { height: 90%; }
.clip:hover .clip-wave i { animation: eq 0.9s ease-in-out infinite alternate; }
.clip:hover .clip-wave i:nth-child(2n) { animation-duration: .7s; }
.clip:hover .clip-wave i:nth-child(3n) { animation-duration: 1.15s; }
@keyframes eq { from { height: 20%; } to { height: 100%; } }

.works-hint { max-width: 1060px; margin: 1rem auto 0; color: var(--ink-soft); font-size: .82rem; text-align: center; }
.empty-note { max-width: 1060px; margin: 0 auto; color: var(--ink-soft); }

/* ---------- about ---------- */
.about-grid {
  max-width: 1060px; margin: 0 auto;
  display: grid; grid-template-columns: 1.6fr 1fr; gap: 1.4rem;
  align-items: start;
}
.about-card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow-sm);
  padding: clamp(1.4rem, 3vw, 2.1rem);
}
.about-name { margin: 0; font-size: 1.5rem; font-weight: 700; }
.about-kana { margin-left: .7em; font-size: .85rem; font-weight: 400; color: var(--ink-soft); }
.about-tw { margin: .4rem 0 0; font-size: .9rem; color: var(--ink-soft); }
.tw-sep { margin: 0 .35em; opacity: .5; }
.about-body { margin-top: 1rem; }
.about-fields { margin: 1.4rem 0 0; display: grid; gap: .9rem; }
.about-field {
  border-left: 4px solid var(--c, var(--accent));
  background: color-mix(in srgb, var(--c, var(--accent)) 7%, var(--card));
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: .7rem 1rem .75rem;
}
.about-field dt {
  font-family: var(--font-en); font-weight: 700; letter-spacing: .06em;
  color: color-mix(in srgb, var(--c, var(--accent)) 70%, var(--ink));
}
.about-field dd { margin: .2rem 0 0; font-size: 1rem; }

.about-links { list-style: none; margin: 0; padding: 0; display: grid; gap: .7rem; }
.about-link {
  display: flex; align-items: center; gap: .8rem;
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: .8rem 1rem;
  text-decoration: none; color: var(--ink);
  box-shadow: var(--shadow-sm);
  transition: transform .2s ease, border-color .2s ease;
}
.about-link:hover { transform: translateX(4px); border-color: var(--accent); opacity: 1; }
.about-link-label { flex: 1; font-weight: 500; }
.about-link-arrow { color: var(--accent-ink); font-family: var(--font-en); }
.icon svg { width: 20px; height: 20px; fill: var(--ink-soft); display: block; }
.about-link:hover .icon svg { fill: var(--accent); }

/* ---------- CTA ---------- */
.cta-band {
  max-width: 1060px;
  margin: 0 auto clamp(3rem, 7vw, 5rem);
  text-align: center;
  background:
    linear-gradient(var(--card), var(--card)) padding-box,
    linear-gradient(120deg, var(--c-music), var(--c-video), var(--c-mix)) border-box;
  border: 2px solid transparent;
  border-radius: calc(var(--radius) + 6px);
  box-shadow: var(--shadow);
  padding: clamp(2rem, 5vw, 3rem);
}
.cta-text { margin: 0 0 1.2rem; font-size: 1.12rem; font-weight: 500; }

/* ---------- buttons ---------- */
.btn {
  display: inline-block;
  font-family: inherit; font-weight: 700; font-size: .95rem;
  padding: .68em 1.7em; border-radius: 999px;
  border: 1px solid transparent; cursor: pointer;
  text-decoration: none; line-height: 1.6;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-accent { background: var(--accent); color: #fff; box-shadow: var(--shadow-sm); }
.btn-accent:hover { background: var(--accent-ink); opacity: 1; }
.btn-ghost { background: transparent; color: var(--accent-ink); border-color: var(--accent); }
.btn-ghost:hover { background: var(--accent-soft); opacity: 1; }
.btn-danger { background: transparent; color: #C25B6E; border-color: #E4B4BE; }
.btn-danger:hover { background: #FBEDEF; }
[data-theme="dark"] .btn-danger:hover { background: #3A2830; }
.btn-mini { font-size: .8rem; padding: .35em 1em; }
.btn-row { display: flex; gap: .6rem; flex-wrap: wrap; }

/* ---------- forms ---------- */
.form { max-width: 720px; }
.form-narrow { max-width: 460px; }
.field { display: block; margin-bottom: 1rem; }
.field-label { display: block; font-size: .84rem; font-weight: 700; margin-bottom: .3rem; color: var(--ink-soft); }
.field-help { display: block; font-size: .76rem; color: var(--ink-soft); margin-top: .25rem; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1rem; }
.field-row > .field { min-width: 0; }
input[type="text"], input[type="email"], input[type="password"], input[type="date"], select, textarea {
  width: 100%;
  font: inherit; color: var(--ink);
  background: var(--card);
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: .6em .9em;
  transition: border-color .2s, box-shadow .2s;
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
textarea { resize: vertical; }
.check-field { display: flex; align-items: center; gap: .5rem; margin: .6rem 0 1rem; cursor: pointer; }
.check-field input { width: 18px; height: 18px; accent-color: var(--accent); }
.field-check { display: flex; align-items: center; gap: .5rem; }
.field-check input { width: 17px; height: 17px; accent-color: var(--accent); }
.inline-form { display: inline-block; margin-top: .4rem; }
.hp { position: absolute !important; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.flash { border-radius: var(--radius-sm); padding: .7rem 1rem; font-size: .9rem; }
.flash-ok  { background: #EAF7EE; color: #3E7A52; border: 1px solid #CBE8D4; }
.flash-err { background: #FBEDEF; color: #B04A5E; border: 1px solid #F0CBD2; }
[data-theme="dark"] .flash-ok  { background: #23352A; color: #9AD3AC; border-color: #33503C; }
[data-theme="dark"] .flash-err { background: #3A272C; color: #E8A3B0; border-color: #55353E; }
.note { color: var(--ink-soft); font-size: .88rem; }

/* ---------- contact ---------- */
.contact-grid {
  max-width: 1060px; margin: 0 auto;
  display: grid; grid-template-columns: 1.7fr 1fr; gap: 1.6rem;
  align-items: start;
}
.contact-lead { margin-top: 0; }
.contact-main {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow-sm);
  padding: clamp(1.3rem, 3vw, 2rem);
}
.contact-side {
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.2rem 1.3rem;
}
.side-title { margin: 0 0 .6rem; font-size: .95rem; font-weight: 700; }
.side-note { font-size: .8rem; color: var(--ink-soft); }
.ticket-list { list-style: none; margin: 0; padding: 0; display: grid; gap: .6rem; }
.ticket {
  display: block; text-decoration: none; color: var(--ink);
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: .6rem .85rem;
  transition: border-color .2s;
}
.ticket:hover { border-color: var(--accent); opacity: 1; }
.ticket-subject { display: block; font-weight: 700; font-size: .92rem; }
.ticket-meta { display: block; font-size: .75rem; color: var(--ink-soft); font-family: var(--font-en); }

.thread { max-width: 780px; margin: 0 auto; }
.thread-head { margin-bottom: 1.4rem; }
.thread-subject { margin: 0; font-size: 1.5rem; }
.thread-info { color: var(--ink-soft); font-size: .82rem; font-family: var(--font-en); }
.msg-list { display: grid; gap: .9rem; margin: 0 0 1.6rem; }
.msg {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: .95rem 1.15rem;
  box-shadow: var(--shadow-sm);
}
.msg-visitor { border-left: 5px solid var(--c-video); }
.msg-admin   { border-left: 5px solid var(--c-music); background: color-mix(in srgb, var(--c-music) 6%, var(--card)); }
.msg-from { font-size: .78rem; font-weight: 700; color: var(--ink-soft); display: flex; justify-content: space-between; gap: 1rem; }
.msg-body { margin-top: .3rem; white-space: pre-wrap; overflow-wrap: anywhere; }
.thread-reply { margin-top: 1rem; }
.status {
  display: inline-block; font-family: var(--font-en); font-weight: 700; font-size: .72rem;
  border-radius: 999px; padding: .1em .8em; letter-spacing: .05em;
}
.status-open   { background: #EAF7EE; color: #3E7A52; }
.status-closed { background: var(--bg-soft); color: var(--ink-soft); }
[data-theme="dark"] .status-open { background: #23352A; color: #9AD3AC; }
.back-link { display: inline-block; margin-bottom: 1rem; font-size: .88rem; }

/* ---------- blog ---------- */
.bloglist, .article { max-width: 780px; margin: 0 auto; }
.post-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 1rem; }
.post-item { margin: 0; }
.post-link {
  display: flex; align-items: center; gap: 1rem;
  text-decoration: none; color: var(--ink);
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow-sm);
  padding: 1.1rem 1.3rem;
  transition: transform .2s ease, border-color .2s ease;
}
.post-link:hover { transform: translateY(-3px); border-color: var(--accent); opacity: 1; }
.post-body-wrap { flex: 1; min-width: 0; }
.post-date { font-family: var(--font-en); font-size: .78rem; color: var(--ink-soft); }
.post-title { margin: .1rem 0 0; font-size: 1.14rem; font-weight: 700; }
.post-summary { margin: .3rem 0 0; font-size: .92rem; color: var(--ink-soft); }
.post-tags { font-size: .75rem; color: var(--accent-ink); }
.post-arrow { color: var(--accent-ink); font-family: var(--font-en); }

.article-head { margin-bottom: 2rem; }
.article-eyebrow { color: var(--accent-ink); font-family: var(--font-en); font-weight: 600; letter-spacing: .2em; font-size: .78rem; margin: 0; }
.article-title { margin: .3rem 0 .4rem; font-size: clamp(1.6rem, 4vw, 2.1rem); line-height: 1.5; }
.article-tags { color: var(--ink-soft); font-size: .82rem; }
.article-body {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow-sm);
  padding: clamp(1.4rem, 4vw, 2.4rem);
}
.article-foot { margin-top: 1.6rem; }

/* Markdown本文 */
.md-body h2 {
  font-size: 1.32rem; margin: 2em 0 .7em; padding-bottom: .3em;
  border-bottom: 2px dashed var(--line);
}
.md-body h3 { font-size: 1.12rem; margin: 1.7em 0 .5em; }
.md-body h4 { font-size: 1rem; margin: 1.4em 0 .4em; }
.md-body { line-height: 2.05; }
.md-body p { margin: .95em 0; }
.md-body img { border-radius: var(--radius-sm); }
.md-body blockquote {
  margin: 1em 0; padding: .6em 1.1em;
  border-left: 4px solid var(--c-mix);
  background: color-mix(in srgb, var(--c-mix) 7%, var(--card));
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--ink-soft);
}
.md-body code {
  font-family: var(--font-mono); font-size: .88em;
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: 6px; padding: .1em .4em;
}
.md-body pre {
  background: #2B2533; color: #F0EAF6;
  border-radius: var(--radius-sm); padding: 1em 1.2em;
  overflow-x: auto; line-height: 1.6;
}
[data-theme="dark"] .md-body pre { background: #171320; }
.md-body pre code { background: none; border: none; color: inherit; padding: 0; font-size: .85rem; }
.md-body table { border-collapse: collapse; width: 100%; margin: 1em 0; }
.md-body th, .md-body td { border: 1px solid var(--line); padding: .45em .8em; }
.md-body th { background: var(--bg-soft); }
.md-body hr { border: none; border-top: 2px dashed var(--line); margin: 2em 0; }
.md-body ul, .md-body ol { padding-left: 1.5em; }

/* ---------- gallery ---------- */
.chips { max-width: 1060px; margin: 0 auto 1.4rem; display: flex; gap: .5rem; flex-wrap: wrap; }
.chip {
  font-family: inherit; font-weight: 700; font-size: .86rem;
  color: var(--ink-soft); background: var(--card);
  border: 1px solid var(--line); border-radius: 999px;
  padding: .3em 1.15em; cursor: pointer;
  transition: color .2s, border-color .2s, background .2s;
}
.chip:hover { color: var(--accent-ink); border-color: var(--accent); }
.chip.is-active { color: #fff; background: var(--accent); border-color: var(--accent); }

.gallery-grid {
  max-width: 1060px; margin: 0 auto;
  columns: 3; column-gap: 1.1rem;
}
.g-item { break-inside: avoid; margin: 0 0 1.1rem; }
.g-item.is-hidden { display: none; }
.g-thumb {
  display: block; width: 100%; padding: 0; border: none; cursor: zoom-in;
  border-radius: var(--radius); overflow: hidden;
  background: var(--card); box-shadow: var(--shadow-sm);
  transition: transform .22s ease, box-shadow .22s ease;
}
.g-thumb:hover, .g-thumb:focus-visible { transform: translateY(-3px); box-shadow: var(--shadow); outline: none; }
.g-thumb img { display: block; width: 100%; height: auto; }
.g-cap { margin-top: .45rem; padding: 0 .2rem; font-size: .84rem; line-height: 1.6; }
.g-title { display: block; font-weight: 700; }
.g-credit { display: block; color: var(--ink-soft); font-size: .78rem; }

.lightbox { position: fixed; inset: 0; z-index: 70; display: grid; place-items: center; padding: 1rem; }
.lightbox[hidden] { display: none; }
.lightbox-backdrop {
  position: absolute; inset: 0;
  background: color-mix(in srgb, var(--ink) 55%, transparent);
  backdrop-filter: blur(6px);
}
.lightbox-figure { position: relative; margin: 0; max-width: min(1100px, 94vw); text-align: center; }
.lightbox-figure img {
  max-width: 100%; max-height: 78vh;
  border-radius: var(--radius); box-shadow: var(--shadow);
  background: var(--card);
}
.lightbox-cap { margin-top: .7rem; color: #fff; font-size: .92rem; line-height: 1.7; }
.lightbox-cap .g-credit { color: rgba(255,255,255,.75); display: inline; margin-left: .7em; }
.lightbox-desc { display: block; font-size: .82rem; color: rgba(255,255,255,.85); }
.lightbox-btn {
  position: absolute; z-index: 2;
  display: grid; place-items: center;
  width: 44px; height: 44px; border-radius: 50%;
  border: none; cursor: pointer;
  background: rgba(255,255,255,.92); color: var(--ink);
  font-size: 1.5rem; line-height: 1;
  box-shadow: var(--shadow-sm);
}
.lightbox-btn:hover { background: #fff; }
.lightbox-close { top: 1.1rem; right: 1.1rem; }
.lightbox-prev { left: 1.1rem; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 1.1rem; top: 50%; transform: translateY(-50%); }

.g-admin-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: .9rem; }
.g-admin-item {
  display: block; text-decoration: none; color: var(--ink);
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius-sm); overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .2s, border-color .2s;
}
.g-admin-item:hover { transform: translateY(-3px); border-color: var(--accent); opacity: 1; }
.g-admin-item img { display: block; width: 100%; height: 130px; object-fit: cover; }
.g-admin-meta { display: block; padding: .5rem .7rem .6rem; }
.g-admin-title { display: block; font-size: .86rem; font-weight: 700; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.g-admin-sub { display: block; font-size: .74rem; color: var(--ink-soft); }
.g-edit-preview { width: 100%; height: auto; border-radius: var(--radius); box-shadow: var(--shadow-sm); }

/* ---------- modal ---------- */
.modal { position: fixed; inset: 0; z-index: 60; display: grid; place-items: center; padding: 1rem; }
.modal[hidden] { display: none; }
.modal-backdrop {
  position: absolute; inset: 0;
  background: color-mix(in srgb, var(--ink) 34%, transparent);
  backdrop-filter: blur(4px);
}
.modal-panel {
  position: relative; width: min(640px, 100%);
  max-height: 88vh; overflow-y: auto;
  background: var(--card); border-radius: calc(var(--radius) + 4px);
  border: 1px solid var(--line); box-shadow: var(--shadow);
  padding: clamp(1.4rem, 4vw, 2rem);
}
.modal-close {
  position: absolute; top: .9rem; right: .9rem;
  border: 1px solid var(--line); background: var(--bg-soft);
  border-radius: 999px; padding: .3em .9em; cursor: pointer;
  font-family: var(--font-en); font-size: .78rem; color: var(--ink-soft);
}
.modal-close:hover { color: var(--accent-ink); border-color: var(--accent); }
.modal-cat { margin: 0; font-family: var(--font-en); font-size: .78rem; color: var(--accent-ink); font-weight: 600; letter-spacing: .06em; }
.modal-title { margin: .25rem 0 .2rem; font-size: 1.45rem; }
.modal-meta { margin: 0 0 1rem; color: var(--ink-soft); font-size: .82rem; font-family: var(--font-en); }
.modal-embed { position: relative; aspect-ratio: 16 / 9; border-radius: var(--radius-sm); overflow: hidden; margin-bottom: 1rem; background: #000; }
.modal-embed iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.modal-desc { white-space: pre-wrap; }
.modal-tags { color: var(--ink-soft); font-size: .8rem; }

/* ---------- footer ---------- */
.site-foot {
  border-top: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg-soft) 70%, transparent);
  padding: 2.4rem clamp(1rem, 5vw, 2.4rem) 1.6rem;
}
.foot-inner {
  max-width: 1060px; margin: 0 auto 1.4rem;
  display: flex; justify-content: space-between; gap: 2rem; flex-wrap: wrap;
}
.foot-name { margin: 0; font-weight: 700; font-size: 1.05rem; }
.foot-alias { margin-left: .6em; font-family: var(--font-en); font-weight: 600; font-size: .8rem; color: var(--ink-soft); letter-spacing: .08em; }
.foot-tag { margin: .2rem 0 0; font-size: .84rem; color: var(--ink-soft); }
.foot-links { list-style: none; margin: 0; padding: 0; display: flex; gap: .6rem; flex-wrap: wrap; }
.foot-links a {
  display: inline-flex; align-items: center; gap: .45rem;
  text-decoration: none; color: var(--ink-soft); font-size: .85rem;
  border: 1px solid var(--line); border-radius: 999px;
  background: var(--card); padding: .35em .95em;
  transition: color .2s, border-color .2s;
}
.foot-links a:hover { color: var(--accent-ink); border-color: var(--accent); opacity: 1; }
.foot-links .icon svg { width: 16px; height: 16px; }
.foot-copy { max-width: 1060px; margin: 0 auto; text-align: center; color: var(--ink-soft); font-size: .78rem; font-family: var(--font-en); }

/* ---------- toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 2rem; z-index: 90;
  transform: translateX(-50%);
  background: var(--ink); color: var(--bg);
  border-radius: 999px; padding: .6em 1.6em;
  font-weight: 700; font-size: .9rem;
  box-shadow: var(--shadow);
  animation: toastIn .3s ease;
}
@keyframes toastIn { from { opacity: 0; transform: translate(-50%, 10px); } }

/* ---------- メンテナンス画面 ---------- */
.maint-body { min-height: 100vh; display: grid; }
.maint { display: grid; place-items: center; padding: 2rem 1rem; }
.maint-card {
  text-align: center;
  background: var(--card); border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 6px); box-shadow: var(--shadow);
  padding: clamp(2.2rem, 6vw, 3.4rem) clamp(1.6rem, 6vw, 3.6rem);
  max-width: 480px;
}
.maint-card .brand-dots { justify-content: center; display: flex; margin-bottom: 1rem; }
.maint-card .brand-dots i { width: 12px; height: 12px; animation: bounceDot 1.6s ease-in-out infinite; }
.maint-card .brand-dots i:nth-child(2) { animation-delay: .18s; }
.maint-card .brand-dots i:nth-child(3) { animation-delay: .36s; }
@keyframes bounceDot { 0%, 100% { transform: translateY(0); } 30% { transform: translateY(-7px); } }
.maint-en { margin: 0; font-family: var(--font-en); font-weight: 600; letter-spacing: .3em; font-size: .75rem; color: var(--accent-ink); }
.maint-title { margin: .3rem 0 .8rem; font-size: 1.9rem; }
.maint-msg { margin: 0; color: var(--ink-soft); }

/* ---------- admin ---------- */
body.admin { background: var(--bg); }
.admin-head {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  padding: .7rem clamp(1rem, 3vw, 2rem);
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.admin-brand { margin: 0; display: inline-flex; align-items: center; gap: .55rem; font-weight: 700; }
.admin-nav { display: flex; gap: .2rem; flex-wrap: wrap; }
.admin-nav a {
  text-decoration: none; color: var(--ink-soft); font-size: .9rem;
  padding: .35em .8em; border-radius: 999px;
}
.admin-nav a:hover { color: var(--accent-ink); background: var(--accent-soft); opacity: 1; }
.admin-nav a.is-active { color: var(--accent-ink); font-weight: 700; }
.admin-nav .logout { color: #C25B6E; }
.admin-main { max-width: 1000px; margin: 0 auto; padding: 2rem clamp(1rem, 3vw, 2rem) 4rem; }
.admin-main h1 { font-size: 1.6rem; }
.admin-main h2 { font-size: 1.15rem; margin-top: 2rem; }
.admin-hr { border: none; border-top: 2px dashed var(--line); margin: 2.4rem 0; }

.login-box {
  max-width: 440px; margin: 8vh auto 0;
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 2rem;
}
.login-box h1 { margin-top: 0; font-size: 1.4rem; }

.maint-box {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.1rem 1.4rem; margin: 1.2rem 0;
  box-shadow: var(--shadow-sm);
}
.maint-box-on { border-color: #F3D9A0; background: #FFF9EC; }
[data-theme="dark"] .maint-box-on { background: #342D1E; border-color: #55492E; }
.maint-box p { margin: .2rem 0 .6rem; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(155px, 1fr)); gap: .9rem; margin: 1.4rem 0 2rem; }
.stat {
  display: block; text-decoration: none; color: var(--ink);
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1rem 1.2rem;
  box-shadow: var(--shadow-sm);
  transition: transform .2s, border-color .2s;
}
.stat:hover { transform: translateY(-3px); border-color: var(--accent); opacity: 1; }
.stat-num { display: block; font-family: var(--font-en); font-weight: 700; font-size: 1.9rem; color: var(--accent-ink); }
.stat-label { display: block; font-size: .8rem; color: var(--ink-soft); }

.table { width: 100%; border-collapse: collapse; background: var(--card); border-radius: var(--radius-sm); overflow: hidden; box-shadow: var(--shadow-sm); }
.table th, .table td { text-align: left; padding: .65em .95em; border-bottom: 1px solid var(--line); font-size: .92rem; }
.table th { background: var(--bg-soft); font-size: .78rem; color: var(--ink-soft); }
.table tr:last-child td { border-bottom: none; }
.row-attn td { background: color-mix(in srgb, var(--c-music) 8%, var(--card)); }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 1.6rem; align-items: start; }
.meta-box {
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: 1rem 1.2rem; margin-bottom: 1.2rem;
}
.meta-grid { display: grid; grid-template-columns: auto 1fr; gap: .15rem .9rem; margin: 0; font-size: .86rem; }
.meta-grid dt { color: var(--ink-soft); }
.meta-grid dd { margin: 0; overflow-wrap: anywhere; }
.ua-detail { font-size: .78rem; color: var(--ink-soft); }
.danger-row { margin-top: 2rem; padding-top: 1rem; border-top: 2px dashed var(--line); }
.link-row { grid-template-columns: 1fr 2fr auto; display: grid; gap: .5rem; margin-bottom: .5rem; }
.preview-box {
  background: var(--card); border: 1px dashed var(--accent);
  border-radius: var(--radius); padding: 1.2rem 1.4rem; margin: 1rem 0;
}

/* ---------- 統計（管理画面） ---------- */
.range-tabs { display: flex; gap: .4rem; margin: 1.2rem 0; }
.range-tab {
  text-decoration: none; color: var(--ink-soft); font-size: .88rem; font-weight: 700;
  border: 1px solid var(--line); border-radius: 999px; padding: .28em 1.1em;
  background: var(--card);
}
.range-tab:hover { border-color: var(--accent); color: var(--accent-ink); opacity: 1; }
.range-tab.is-active { background: var(--accent); border-color: var(--accent); color: #fff; }

.chart {
  display: flex; align-items: flex-end; gap: 3px;
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow-sm);
  padding: 1.2rem 1rem .7rem; height: 220px;
  overflow-x: auto;
}
.chart-col { flex: 1 1 0; min-width: 10px; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; height: 100%; gap: .25rem; }
.chart-val { font-family: var(--font-en); font-size: .66rem; color: var(--ink-soft); line-height: 1; }
.chart-bar {
  width: 100%; max-width: 26px; height: var(--h, 0%);
  border-radius: 6px 6px 3px 3px;
  background: linear-gradient(180deg, var(--c-music), color-mix(in srgb, var(--c-mix) 80%, var(--c-music)));
  min-height: 2px;
  transition: height .4s ease;
}
.chart-label { font-family: var(--font-en); font-size: .62rem; color: var(--ink-soft); line-height: 1; white-space: nowrap; }
.chart-col:nth-child(2n) .chart-label { visibility: hidden; }
.hour-chart {
  display: flex; align-items: flex-end; gap: 3px;
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow-sm);
  padding: 1rem .9rem .6rem; height: 130px;
}
.hour-col { flex: 1 1 0; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; height: 100%; gap: .2rem; }
.hour-col .chart-bar { background: linear-gradient(180deg, var(--c-video), color-mix(in srgb, var(--c-video) 55%, var(--card))); }
.hour-col .chart-label { visibility: visible; }

.rank-list { list-style: none; margin: 0 0 1.6rem; padding: 0; display: grid; gap: .45rem; counter-reset: rank; }
.rank-item {
  display: grid; grid-template-columns: 1fr auto; grid-template-rows: auto auto;
  gap: .1rem .8rem; align-items: center;
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius-sm); padding: .5rem .9rem;
}
.rank-name { font-size: .9rem; font-weight: 500; overflow-wrap: anywhere; }
.rank-num { font-family: var(--font-en); font-weight: 700; color: var(--accent-ink); grid-row: 1 / 3; }
.rank-bar {
  grid-column: 1; height: 6px; border-radius: 99px;
  background: linear-gradient(90deg, var(--c-music), var(--c-video));
  width: var(--w, 0%); min-width: 6px;
}

/* ============================================================
   GAMING MODE（虹色）
   ライト/ダークを10回以上切り替えると発動するお楽しみ
   ============================================================ */
@keyframes hueSpin { from { filter: hue-rotate(0deg); } to { filter: hue-rotate(360deg); } }
@keyframes rainbowSlide { from { background-position: 0% 50%; } to { background-position: 200% 50%; } }

html.gaming .bg-geo,
html.gaming .brand-dots,
html.gaming .meter,
html.gaming .clip,
html.gaming .track-code,
html.gaming .about-field,
html.gaming .btn-accent,
html.gaming .nav-cta,
html.gaming .theme-toggle,
html.gaming .sec-title::after,
html.gaming .cta-band,
html.gaming .stat-num,
html.gaming .clip-wave {
  animation: hueSpin 3.2s linear infinite;
}
html.gaming .site-head::after,
html.gaming .admin-head::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -3px; height: 3px;
  background: linear-gradient(90deg, #ff5e7e, #ffb648, #f3ef5c, #63e07b, #59c8f7, #8a7bff, #ff5e7e);
  background-size: 200% 100%;
  animation: rainbowSlide 2.4s linear infinite;
}
html.gaming .site-head, html.gaming .admin-head { position: sticky; }
html.gaming .hero-jp {
  background: linear-gradient(90deg, #ff5e7e, #ffb648, #f3ef5c, #63e07b, #59c8f7, #8a7bff, #ff5e7e);
  background-size: 200% 100%;
  -webkit-background-clip: text; background-clip: text;
  color: transparent; -webkit-text-fill-color: transparent;
  animation: rainbowSlide 3s linear infinite;
}
html.gaming .toast {
  background: linear-gradient(90deg, #ff5e7e, #ffb648, #63e07b, #59c8f7, #8a7bff);
  background-size: 200% 100%; color: #fff;
  animation: toastIn .3s ease, rainbowSlide 2s linear infinite;
}

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .about-grid, .contact-grid, .two-col { grid-template-columns: 1fr; }
  .gallery-grid { columns: 2; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .sp-only { display: inline; }
  .gallery-grid { columns: 2; column-gap: .7rem; }
  .g-item { margin-bottom: .7rem; }
  .lightbox-prev { left: .4rem; }
  .lightbox-next { right: .4rem; }
  .field-row { grid-template-columns: 1fr; }
  .site-nav a { font-size: .86rem; padding: .3em .5em; }
  .foot-inner { flex-direction: column; gap: 1.2rem; }
  .link-row { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .site-head { flex-wrap: wrap; justify-content: center; row-gap: .2rem; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}