/* =========================================================
   sanrio.page — Front Modern (preview)
   独立したスタイルシート。既存サイトには影響しない
   ========================================================= */

:root {
  --bg: #0b0e14;
  --bg-elev: #131722;
  --bg-elev-2: #1c2030;
  --fg: #e6e8ef;
  --fg-muted: #8b91a3;
  --fg-dim: #5a6075;
  --border: #232838;
  --border-soft: #1a1e2a;
  --accent: #7dd3fc;
  --accent-hover: #38bdf8;
  --accent-soft: rgba(125, 211, 252, 0.12);
  --accent-glow: rgba(125, 211, 252, 0.35);
  --line-green: #06c755;
  --danger: #f87171;
  --success: #4ade80;

  --radius: 14px;
  --radius-sm: 8px;
  --radius-lg: 22px;
  --max-width: 1180px;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --section-py: clamp(4rem, 10vw, 7.5rem);

  --font-sans: 'Inter', 'Noto Sans JP', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', monospace;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --header-h: 72px;
}

/* ===== reset & base ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body.front-modern {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  font-feature-settings: "palt";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
body.front-modern img { max-width: 100%; height: auto; display: block; }
body.front-modern a { color: var(--accent); text-decoration: none; transition: color .2s var(--ease); }
body.front-modern a:hover { color: var(--accent-hover); }
body.front-modern h1, body.front-modern h2, body.front-modern h3, body.front-modern h4 {
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 0;
}
body.front-modern p { margin: 0 0 1em; }
body.front-modern ul { list-style: none; padding: 0; margin: 0; }
body.front-modern button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
body.front-modern input, body.front-modern textarea { font: inherit; }
body.front-modern ::selection { background: var(--accent); color: var(--bg); }

/* WordPress admin bar 補正 */
body.front-modern.admin-bar { padding-top: 0; }
.sp-only { display: none; }

/* ===== layout primitives ===== */
.section {
  padding: var(--section-py) 0;
  position: relative;
}
.section__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 1rem 2rem;
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
}
.section__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0;
}
.section__title {
  font-size: clamp(1.75rem, 4.5vw, 2.5rem);
  margin: 0;
  flex: 1 1 auto;
}
.section__more {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--fg-muted);
  white-space: nowrap;
}
.section__more:hover { color: var(--accent); }

/* ===== nav ===== */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--gutter);
  backdrop-filter: blur(0px);
  transition: background .25s var(--ease), backdrop-filter .25s var(--ease), border-color .25s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(11, 14, 20, 0.78);
  backdrop-filter: blur(12px);
  border-bottom-color: var(--border-soft);
}
.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  color: var(--fg);
  font-weight: 600;
  letter-spacing: .04em;
}
.nav__brand:hover { color: var(--fg); }
.nav__brand-mark {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: .9rem;
}
.nav__brand-name { font-size: 1.05rem; }
.nav__list {
  display: flex;
  align-items: center;
  gap: clamp(.6rem, 1.8vw, 1.5rem);
}
.nav__list a {
  display: inline-block;
  padding: .35rem .25rem;
  font-size: .92rem;
  color: var(--fg-muted);
  letter-spacing: .04em;
  position: relative;
}
.nav__list a:hover { color: var(--fg); }
.nav__list a::after {
  content: "";
  position: absolute;
  left: .25rem; right: .25rem; bottom: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s var(--ease);
}
.nav__list a:hover::after { transform: scaleX(1); }
.nav__ext { color: var(--accent) !important; }

.nav__toggle {
  display: none;
  width: 38px; height: 38px;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  border-radius: 8px;
  z-index: 60;
}
.nav__toggle span {
  width: 22px; height: 1.5px;
  background: var(--fg);
  transition: transform .25s var(--ease), opacity .2s var(--ease);
}

/* ===== hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  isolation: isolate;
  padding: var(--header-h) var(--gutter) clamp(3rem, 8vw, 5rem);
}
.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
  filter: saturate(1.1) brightness(.55);
}
.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(125, 211, 252, 0.10), transparent 60%),
    linear-gradient(180deg, rgba(11, 14, 20, 0.60) 0%, rgba(11, 14, 20, 0.78) 50%, rgba(11, 14, 20, 0.92) 100%);
}
.hero__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
  position: relative;
}
.hero__tag {
  display: inline-flex;
  gap: .6rem;
  align-items: center;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid var(--accent-glow);
  padding: .35rem .85rem;
  border-radius: 999px;
  margin: 0 0 1.5rem;
}
.hero__tag-x { color: var(--fg-muted); }
.hero__title {
  margin: 0 0 1rem;
  display: flex;
  flex-direction: column;
  gap: .35rem;
  word-break: keep-all;
  overflow-wrap: anywhere;
}
.hero__title-main {
  font-size: clamp(2.75rem, 9vw, 6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
  color: #ffffff;
  font-family: var(--font-display);
  text-shadow:
    0 2px 16px rgba(0, 0, 0, 0.45),
    0 1px 2px rgba(0, 0, 0, 0.65);
}
.hero__title-name {
  font-size: clamp(1rem, 2vw, 1.35rem);
  font-weight: 500;
  color: var(--fg-muted);
  letter-spacing: .12em;
  font-family: var(--font-mono);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
}
.hero__title-name::before {
  content: "── ";
  color: var(--accent);
  margin-right: .25em;
  letter-spacing: 0;
}
.hero__subtitle {
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  color: var(--fg);
  max-width: 32ch;
  margin: 0 0 2rem;
  line-height: 1.6;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
}
.hero__subtitle-en {
  display: inline-block;
  margin-top: .35rem;
  font-family: var(--font-mono);
  font-size: .85em;
  color: var(--fg-muted);
  letter-spacing: .02em;
}
.hero__sns {
  display: flex;
  gap: .75rem;
}
.hero__sns a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--fg-muted);
  background: rgba(19, 23, 34, 0.5);
  backdrop-filter: blur(8px);
  transition: all .25s var(--ease);
}
.hero__sns a:hover {
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px -8px var(--accent-glow);
}
.hero__scroll {
  position: absolute;
  bottom: -1rem;
  left: 50%;
  transform: translateX(-50%);
  width: 28px; height: 44px;
  border: 1.5px solid var(--fg-muted);
  border-radius: 16px;
  display: block;
  opacity: 0;
  animation: hero-fade-in 1s var(--ease) .8s forwards;
}
.hero__scroll span {
  position: absolute;
  top: 8px; left: 50%;
  width: 3px; height: 8px;
  margin-left: -1.5px;
  border-radius: 2px;
  background: var(--accent);
  animation: hero-scroll 1.8s var(--ease) infinite;
}
@keyframes hero-scroll {
  0%   { opacity: 0; transform: translateY(0); }
  30%  { opacity: 1; }
  100% { opacity: 0; transform: translateY(14px); }
}

/* hero load-in animation */
.hero__animate {
  opacity: 0;
  transform: translateY(18px);
  animation: hero-fade-in .9s var(--ease) forwards;
  animation-delay: var(--d, 0s);
}
@keyframes hero-fade-in {
  to { opacity: 1; transform: none; }
}

/* ===== reveal on scroll ===== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity .9s var(--ease),
    transform .9s var(--ease);
  will-change: transform, opacity;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
/* stagger: children of .stagger reveal in sequence */
.stagger > .reveal { transition-delay: 0s; }
.stagger > .reveal.is-visible:nth-child(1) { transition-delay: 0s; }
.stagger > .reveal.is-visible:nth-child(2) { transition-delay: .08s; }
.stagger > .reveal.is-visible:nth-child(3) { transition-delay: .16s; }
.stagger > .reveal.is-visible:nth-child(4) { transition-delay: .24s; }
.stagger > .reveal.is-visible:nth-child(5) { transition-delay: .32s; }
.stagger > .reveal.is-visible:nth-child(6) { transition-delay: .4s; }

/* ===== about ===== */
.section--about { background: var(--bg); }
.about__grid {
  display: grid;
  grid-template-columns: minmax(180px, 280px) 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}
.about__photo {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-elev);
  border: 1px solid var(--border);
}
.about__photo img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .6s var(--ease);
}
.about__photo:hover img { transform: scale(1.04); }
.about__body p { color: var(--fg); }
.about__body p + p { margin-top: 1em; }
.about__lead {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  padding: 1rem 1.2rem;
  margin: 0 0 1.5rem;
  border-left: 2px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.about__lead-mark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--accent);
  letter-spacing: -0.01em;
}
.about__lead-def {
  font-size: .92rem;
  color: var(--fg-muted);
  line-height: 1.55;
}
.about__tags {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 1.5rem;
}
.about__tags li {
  font-family: var(--font-mono);
  font-size: .78rem;
  padding: .3rem .7rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--fg-muted);
  background: var(--bg-elev);
}
.about__video {
  margin-top: clamp(2.5rem, 6vw, 4rem);
}
.about__video-title {
  font-size: 1.15rem;
  margin: 0 0 1rem;
  color: var(--fg);
  display: inline-flex;
  align-items: center;
  gap: .5rem;
}
.about__video-title::before {
  content: "▶";
  color: var(--accent);
  font-size: .85em;
}
.about__video-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-elev);
}
.about__video-frame iframe {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  border: 0;
}

/* ===== live (streaming) ===== */
.section--live {
  background: var(--bg-elev);
}
.live__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: clamp(1rem, 2.5vw, 1.5rem);
}
.live-card {
  position: relative;
  display: flex;
  align-items: center;
  gap: 1.1rem;
  padding: 1.4rem 1.5rem;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--fg);
  transition:
    transform .3s var(--ease),
    border-color .3s var(--ease),
    box-shadow .3s var(--ease);
  overflow: hidden;
}
.live-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top right, var(--card-glow, transparent), transparent 60%);
  opacity: 0;
  transition: opacity .35s var(--ease);
  pointer-events: none;
}
.live-card:hover {
  transform: translateY(-3px);
  border-color: var(--card-accent, var(--accent));
  color: var(--fg);
  box-shadow: 0 18px 36px -16px rgba(0,0,0,0.55);
}
.live-card:hover::after { opacity: .25; }
.live-card--twitcasting {
  --card-accent: #00aef0;
  --card-glow: rgba(0, 174, 240, 0.45);
}
.live-card--twitcasting .live-card__icon { color: #00aef0; }
.live-card--youtube {
  --card-accent: #ff0033;
  --card-glow: rgba(255, 0, 51, 0.4);
}
.live-card--youtube .live-card__icon { color: #ff0033; }
.live-card__icon {
  flex: 0 0 auto;
  width: 56px; height: 56px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
}
.live-card__body {
  flex: 1;
  min-width: 0;
}
.live-card__platform {
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--card-accent, var(--accent));
  margin: 0 0 .15rem;
}
.live-card__name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--fg);
  margin: 0 0 .35rem;
}
.live-card__desc {
  font-size: .82rem;
  color: var(--fg-muted);
  margin: 0;
  line-height: 1.55;
}
.live-card__arrow {
  flex: 0 0 auto;
  font-size: 1.2rem;
  color: var(--fg-muted);
  transition: transform .3s var(--ease), color .3s var(--ease);
}
.live-card:hover .live-card__arrow {
  transform: translateX(4px);
  color: var(--card-accent, var(--accent));
}

/* ===== works (outputs) ===== */
.section--works {
  background:
    linear-gradient(180deg, var(--bg-elev) 0%, var(--bg) 100%);
}
.works__grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(1rem, 2.5vw, 1.75rem);
}
@media (max-width: 880px) {
  .works__grid { grid-template-columns: 1fr; }
}
.work-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 3vw, 2rem);
  color: var(--fg);
  transition:
    transform .3s var(--ease),
    border-color .3s var(--ease),
    box-shadow .3s var(--ease);
  overflow: hidden;
  isolation: isolate;
}
.work-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  color: var(--fg);
  box-shadow: 0 24px 48px -24px rgba(0, 0, 0, 0.6);
}
.work-card__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}
.work-card__type {
  color: var(--accent);
}
.work-card__year {
  color: var(--fg-dim);
}

/* book card */
.work-card--book {
  background:
    radial-gradient(ellipse at top right, var(--accent-soft), transparent 60%),
    var(--bg-elev-2);
}
.work-card--book::before {
  content: "";
  position: absolute;
  top: 0;
  left: clamp(1.5rem, 3vw, 2rem);
  right: clamp(1.5rem, 3vw, 2rem);
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: .55;
}
.work-card__body {
  flex: 1;
}
.work-card__title {
  font-size: clamp(1.2rem, 2.2vw, 1.5rem);
  line-height: 1.4;
  margin: 0 0 .4rem;
  color: var(--fg);
}
.work-card__sub {
  color: var(--fg-muted);
  font-size: .92rem;
  margin: 0 0 1rem;
  line-height: 1.5;
}
.work-card__meta {
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--fg-dim);
  letter-spacing: .04em;
  margin: 0;
}
.work-card__cta {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .08em;
  color: var(--accent);
  align-self: flex-start;
  transition: gap .25s var(--ease);
}
.work-card:hover .work-card__cta { gap: .75rem; }
.work-card--writing .work-card__cta { color: var(--accent); }

/* writing list */
.work-card__list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.work-card__list li {
  border-bottom: 1px solid var(--border);
}
.work-card__list li:last-child {
  border-bottom: none;
}
.work-card__list a {
  display: flex;
  flex-direction: column;
  gap: .25rem;
  padding: .85rem 0;
  color: var(--fg);
  transition: color .2s var(--ease), padding .25s var(--ease);
}
.work-card__list a:hover {
  color: var(--accent);
  padding-left: .35rem;
}
.work-card__list-date {
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--fg-dim);
  letter-spacing: .08em;
}
.work-card__list-title {
  font-size: .92rem;
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== contact ===== */
.section--contact { background: var(--bg); }
.contact-note {
  max-width: 640px;
  margin: 0 auto 2rem;
  text-align: center;
  color: var(--fg-muted);
  font-size: .95rem;
}
.contact-note__line {
  display: inline-flex;
  align-items: center;
  gap: .25rem;
  color: var(--line-green);
  font-weight: 600;
  border-bottom: 1px solid currentColor;
  padding-bottom: 1px;
}
.contact-note__line:hover { color: #2bd96f; }
.contact-form {
  max-width: 640px;
  margin: 0 auto;
  display: grid;
  gap: 1.25rem;
}
.contact-form__row {
  display: flex;
  flex-direction: column;
  gap: .4rem;
}
.contact-form__row label {
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--fg-muted);
  letter-spacing: .08em;
}
.contact-form__req { color: var(--accent); }
.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .85rem 1rem;
  color: var(--fg);
  outline: none;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
  width: 100%;
}
.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
  background: var(--bg-elev-2);
}
.contact-form textarea { resize: vertical; min-height: 140px; }
.contact-form__actions {
  display: flex;
  justify-content: flex-end;
  margin-top: .5rem;
}
.contact-form__submit {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .9rem 2rem;
  background: var(--accent);
  color: var(--bg);
  font-weight: 600;
  border-radius: 999px;
  letter-spacing: .04em;
  transition: transform .2s var(--ease), background .2s var(--ease), box-shadow .2s var(--ease);
}
.contact-form__submit:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 10px 24px -10px var(--accent-glow);
}
.contact-form__submit:disabled {
  opacity: .65;
  cursor: not-allowed;
  transform: none;
}
.contact-form__submit-spinner {
  width: 14px; height: 14px;
  border: 2px solid rgba(11, 14, 20, 0.35);
  border-top-color: var(--bg);
  border-radius: 50%;
  display: none;
  animation: spin .7s linear infinite;
}
.contact-form.is-sending .contact-form__submit-spinner { display: inline-block; }
.contact-form.is-sending .contact-form__submit-label { opacity: .7; }
@keyframes spin { to { transform: rotate(360deg); } }

.contact-form__warning,
.contact-form__success {
  display: none;
  padding: .9rem 1rem;
  border-radius: var(--radius-sm);
  font-size: .92rem;
}
.contact-form__warning {
  background: rgba(248, 113, 113, 0.08);
  border: 1px solid rgba(248, 113, 113, 0.4);
  color: var(--danger);
}
.contact-form__success {
  background: rgba(74, 222, 128, 0.08);
  border: 1px solid rgba(74, 222, 128, 0.4);
  color: var(--success);
}
.contact-form.is-error .contact-form__warning { display: block; }
.contact-form.is-success .contact-form__success { display: block; }
.contact-form.is-success fieldset,
.contact-form.is-success .contact-form__row,
.contact-form.is-success .contact-form__actions { display: none; }

/* ===== footer ===== */
.footer {
  background: var(--bg-elev);
  border-top: 1px solid var(--border-soft);
  padding: 3rem 0 2rem;
  position: relative;
}
.footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  position: relative;
}
.footer__sns {
  display: flex;
  gap: 1rem;
}
.footer__sns a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  color: var(--fg-muted);
  border: 1px solid var(--border);
  transition: all .2s var(--ease);
}
.footer__sns a:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.footer__sns-line:hover {
  color: var(--line-green) !important;
  border-color: var(--line-green) !important;
}
.footer__copy {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--fg-dim);
  letter-spacing: .04em;
}
.footer__top {
  position: absolute;
  top: -28px;
  right: var(--gutter);
  width: 44px; height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  color: var(--fg-muted);
  font-size: 1.1rem;
  transition: all .2s var(--ease);
}
.footer__top:hover {
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-2px);
}

/* ===== responsive ===== */
@media (max-width: 880px) {
  .nav__toggle { display: inline-flex; }
  .nav__list {
    position: fixed;
    inset: 0;
    background: rgba(11, 14, 20, 0.96);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    transform: translateX(100%);
    transition: transform .35s var(--ease);
    padding: var(--header-h) 0 0;
  }
  .nav__list.is-open { transform: translateX(0); }
  .nav__list a { font-size: 1.1rem; padding: .5rem 1rem; }
  .nav.is-menu-open .nav__toggle span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .nav.is-menu-open .nav__toggle span:nth-child(2) { opacity: 0; }
  .nav.is-menu-open .nav__toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .about__grid {
    grid-template-columns: 1fr;
    text-align: left;
  }
  .about__photo {
    max-width: 220px;
  }
  .sp-only { display: inline; }
}

@media (max-width: 560px) {
  :root { --section-py: clamp(3.5rem, 12vw, 5rem); }
  .footer__top { right: 50%; transform: translateX(50%); }
  .footer__top:hover { transform: translateX(50%) translateY(-2px); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1 !important; transform: none !important; }
  .hero__animate { opacity: 1 !important; transform: none !important; }
}