/* ============================================
   SORARU LIVE 2026 -Starhallow / Starveil-
   Concept: Samhain / 2DAYS contrast
   DAY1 Starhallow = 赤×金 (暖)  /  DAY2 Starveil = 青 (寒)
============================================ */

:root {
  --bg:        #07060d;
  --bg-2:      #0d0c16;
  --panel:     #14121f;
  --text:      #f4f1ff;
  --text-dim:  #b3acc9;
  --line:      rgba(180,170,210,.18);
  --maxw:      1100px;
  --ease:      cubic-bezier(.22,.61,.36,1);

  /* Day1 Starhallow */
  --d1:        #c2382f;
  --d1-lt:     #ff8a4c;
  --d1-gold:   #e9b35a;
  /* Day2 Starveil */
  --d2:        #2f6dd6;
  --d2-lt:     #6fc6ff;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  font-family: "Noto Sans JP", sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.8;
  overflow-x: hidden; -webkit-font-smoothing: antialiased;
  position: relative;
}

/* ===== Background star trail (canvas, behind the haze) ===== */
.starfield {
  position: fixed; inset: 0; width: 100%; height: 100%;
  z-index: -2; pointer-events: none; display: block;
}

/* ===== Background haze (orange × blue mist, crossing in the center) ===== */
body::before,
body::after {
  content: "";
  position: fixed; inset: -25vmax; z-index: -1; pointer-events: none;
  will-change: transform;
}
/* orange mist — drifts from upper-left toward center-right */
body::before {
  background:
    radial-gradient(40vmax 36vmax at 30% 38%, rgba(255,138,76,.16), transparent 64%),
    radial-gradient(34vmax 32vmax at 22% 80%, rgba(255,138,76,.10), transparent 62%);
  animation: hazeOrange 34s ease-in-out infinite alternate;
}
/* blue mist — drifts from lower-right toward center-left */
body::after {
  background:
    radial-gradient(40vmax 36vmax at 70% 62%, rgba(111,198,255,.14), transparent 64%),
    radial-gradient(34vmax 32vmax at 80% 24%, rgba(111,198,255,.09), transparent 62%);
  animation: hazeBlue 34s ease-in-out infinite alternate;
}
@keyframes hazeOrange {
  0%   { transform: translate3d(-10%, -7%, 0) scale(1.05); }
  100% { transform: translate3d(8%,   7%, 0)  scale(1.12); }
}
@keyframes hazeBlue {
  0%   { transform: translate3d(10%,  7%, 0)  scale(1.05); }
  100% { transform: translate3d(-8%, -7%, 0)  scale(1.12); }
}
@media (prefers-reduced-motion: reduce) {
  body::before, body::after { animation: none; }
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.container { width: 90%; max-width: var(--maxw); margin: 0 auto; }

/* ===== Header ===== */
.header {
  position: fixed; top: 0; left: 0; width: 100%; z-index: 100;
  background: rgba(7,6,13,.55); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line); transition: background .3s var(--ease);
}
.header.is-scrolled { background: rgba(7,6,13,.94); }
.header__inner {
  width: 90%; max-width: var(--maxw); margin: 0 auto; height: 72px;
  display: flex; align-items: center; justify-content: space-between;
}
.header__logo {
  font-family: "Cinzel", serif; font-weight: 700; font-size: 1rem; letter-spacing: .12em;
  white-space: nowrap; color: #f0ecdd;
}
.nav__list { display: flex; gap: 1.5rem; list-style: none; }
.nav__link { font-size: .8rem; letter-spacing: .12em; font-weight: 500; color: var(--text-dim); position: relative; transition: color .25s; }
.nav__link::after { content:""; position:absolute; left:0; bottom:-6px; width:0; height:2px; background: var(--d1-gold); transition: width .25s var(--ease); }
.nav__link:hover { color: var(--text); }
.nav__link:hover::after { width: 100%; }
.header__toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 6px; }
.header__toggle span { width: 26px; height: 2px; background: var(--text); transition: .3s var(--ease); }
.header__toggle.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.header__toggle.is-open span:nth-child(2) { opacity: 0; }
.header__toggle.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Hero (split) ===== */
.hero { position: relative; height: 100vh; min-height: 640px; overflow: hidden; }
.hero__split { position: absolute; inset: 0; display: flex; }
.hero__panel {
  position: relative; flex: 1; background-size: cover; background-position: center;
  display: flex; align-items: flex-end; justify-content: center;
  transition: flex .6s var(--ease);
  overflow: hidden;
}
.hero__panel-veil {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(7,6,13,.35) 0%, rgba(7,6,13,.15) 45%, rgba(7,6,13,.9) 100%);
  transition: background .5s var(--ease);
}
.hero__panel--day1 .hero__panel-veil { box-shadow: inset 0 0 180px rgba(194,56,47,.35); }
.hero__panel--day2 .hero__panel-veil { box-shadow: inset 0 0 180px rgba(47,109,214,.4); }
.hero__panel::after {
  content:""; position:absolute; inset:0; opacity:0; transition: opacity .5s var(--ease);
}
.hero__panel--day1::after { background: radial-gradient(60% 50% at 50% 80%, rgba(233,179,90,.28), transparent 70%); }
.hero__panel--day2::after { background: radial-gradient(60% 50% at 50% 80%, rgba(111,198,255,.28), transparent 70%); }
.hero__panel:hover { flex: 1.35; }
.hero__panel:hover::after { opacity: 1; }
@media (hover:hover){ .hero__split:hover .hero__panel:not(:hover) { flex: .85; filter: brightness(.7); } }

.hero__panel-content { position: relative; z-index: 2; text-align: center; padding: 0 1rem 72px; }
.hero__panel-day { display: block; font-family: "Cinzel", serif; letter-spacing: .2em; font-size: .72rem; color: var(--text); opacity: .85; margin-bottom: .6rem; }
.hero__panel-title {
  font-family: "Cormorant Garamond", serif; font-style: italic; font-weight: 500;
  font-size: clamp(2.4rem, 6vw, 4.2rem); line-height: 1;
}
.hero__panel--day1 .hero__panel-title { color: var(--d1-gold); text-shadow: 0 0 28px rgba(194,56,47,.7); }
.hero__panel--day2 .hero__panel-title { color: var(--d2-lt); text-shadow: 0 0 28px rgba(47,109,214,.75); }
.hero__panel-logo {
  display: inline-block; width: auto; height: clamp(56px, 8vw, 92px);
  max-width: 86%; object-fit: contain;
}
.hero__logo { display: inline-block; width: min(520px, 82vw); height: auto; filter: drop-shadow(0 6px 32px rgba(0,0,0,.65)); }
.hero__panel--day1 .hero__panel-logo { filter: drop-shadow(0 0 24px rgba(194,56,47,.55)); }
.hero__panel--day2 .hero__panel-logo { filter: drop-shadow(0 0 24px rgba(47,109,214,.6)); }
.hero__panel-read { font-size: .76rem; letter-spacing: .2em; color: var(--text-dim); margin-top: .4rem; }
.hero__panel-meaning { font-size: .9rem; letter-spacing: .1em; margin-top: .5rem; }

/* center logo */
.hero__center {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-58%); z-index: 5;
  text-align: center; width: 92%; pointer-events: none;
}
.hero__sub { font-family: "Cinzel", serif; letter-spacing: .35em; font-size: .8rem; color: var(--text); opacity: .9; margin-bottom: 1rem; }
.hero__title {
  font-family: "Cormorant Garamond", serif; font-style: italic; font-weight: 500;
  font-size: clamp(2rem, 6.5vw, 5rem); line-height: 1.05;
  text-shadow: 0 4px 40px rgba(0,0,0,.8);
  display: inline-flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: .2em;
}
.hero__title { background: linear-gradient(90deg, var(--d1-gold) 0%, #fff 50%, var(--d2-lt) 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero__amp { -webkit-text-fill-color: var(--text); opacity: .5; font-size: .8em; }
.hero__date { margin-top: 1.2rem; font-weight: 700; letter-spacing: .08em; font-size: clamp(.95rem,2.6vw,1.3rem); text-shadow: 0 2px 20px rgba(0,0,0,.9); }
.hero__place { margin-top: .3rem; color: var(--text-dim); letter-spacing: .12em; text-shadow: 0 2px 12px rgba(0,0,0,.9); }

.hero__scroll { position: absolute; bottom: 22px; left: 50%; transform: translateX(-50%); z-index: 6; }
.hero__scroll span { display: block; width: 22px; height: 36px; border: 2px solid rgba(255,255,255,.6); border-radius: 12px; position: relative; }
.hero__scroll span::after { content:""; position:absolute; top:6px; left:50%; transform:translateX(-50%); width:4px; height:8px; background:#fff; border-radius:2px; animation: scroll 1.6s infinite; }
@keyframes scroll { 0%{opacity:1;top:6px;} 70%{opacity:0;top:18px;} 100%{opacity:0;} }

/* ===== Section common ===== */
.section { padding: 96px 0; position: relative; background: rgba(7,6,13,.18); }
.section:nth-child(even) { background: rgba(13,12,22,.30); }
.section__title { text-align: center; margin-bottom: 56px; }
.section__title .en {
  display: block; font-family: "Cinzel", serif; font-weight: 700; letter-spacing: .2em;
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  color: #f0ecdd;
}
.section__title .jp { display: block; margin-top: .4rem; font-size: .78rem; letter-spacing: .3em; color: var(--text-dim); }

.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }

/* ===== Concept ===== */
.concept__lead { text-align: center; font-size: 1.1rem; line-height: 2; margin-bottom: 48px; }
.concept__lead strong { color: var(--d1-gold); font-weight: 700; }
.concept__cards { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; max-width: 880px; margin: 0 auto; }
.concept__card { background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 34px; position: relative; overflow: hidden; }
.concept__card::before { content:""; position:absolute; top:0; left:0; width:100%; height:4px; }
.concept__card--day1::before { background: linear-gradient(90deg, var(--d1), var(--d1-gold)); }
.concept__card--day2::before { background: linear-gradient(90deg, var(--d2), var(--d2-lt)); }
.concept__label { font-family: "Cinzel", serif; font-size: .72rem; letter-spacing: .15em; color: var(--text-dim); }
.concept__name { font-family: "Cormorant Garamond", serif; font-style: italic; font-size: 2.4rem; line-height: 1.1; margin: .4rem 0 1rem; }
.concept__card--day1 .concept__name { color: var(--d1-gold); }
.concept__card--day2 .concept__name { color: var(--d2-lt); }
.concept__ety { font-size: .95rem; margin-bottom: 1rem; }
.concept__ety span { font-family: "Cormorant Garamond", serif; font-style: italic; font-size: 1.15rem; }
.concept__desc { font-size: .88rem; color: var(--text-dim); }

/* ===== News ===== */
.news__list { max-width: 760px; margin: 0 auto; }
.news__item { display: flex; align-items: center; gap: 1.2rem; flex-wrap: wrap; padding: 1.1rem 0; border-bottom: 1px solid var(--line); }
.news__date { font-family: "Cinzel", serif; color: var(--d1-gold); font-size: .9rem; letter-spacing: .08em; }
.news__tag { font-size: .68rem; letter-spacing: .1em; padding: .2rem 0; width: 6em; text-align: center; flex-shrink: 0; border-radius: 999px; border: 1px solid var(--d2); color: var(--d2-lt); }
.news__text { flex: 1 1 100%; font-size: .95rem; }
@media (min-width: 600px){ .news__text { flex: 1; } }

/* ===== Survey banner (TOP) ===== */
.survey-banner__box {
  display: flex; flex-direction: column; align-items: center; gap: .5rem;
  max-width: 760px; margin: 0 auto; text-align: center;
  background-image: url('../assets/kv/kvday1_md.jpg');
  background-size: cover; background-position: center 30%;
  border: 1px solid rgba(233,179,90,.45); border-radius: 18px;
  padding: 48px 32px; position: relative; overflow: hidden;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.survey-banner__box::before { content: ""; position: absolute; inset: 0; background: rgba(7,6,13,.62); transition: background .3s var(--ease); }
.survey-banner__box:hover { transform: translateY(-3px); box-shadow: 0 12px 28px rgba(233,179,90,.25); }
.survey-banner__box:hover::before { background: rgba(7,6,13,.5); }
.survey-banner__box > span { position: relative; z-index: 2; }
.survey-banner__label {
  font-size: .7rem; letter-spacing: .18em; font-weight: 700;
  padding: .25rem 1rem; border-radius: 999px;
  border: 1px solid var(--d1-gold); color: var(--d1-gold);
}
.survey-banner__en {
  font-family: "Cinzel", serif; font-weight: 700; letter-spacing: .2em;
  font-size: clamp(1.4rem, 4vw, 2.2rem); color: #f0ecdd; margin-top: .4rem;
}
.survey-banner__jp { font-size: .9rem; letter-spacing: .12em; color: var(--text); }
.survey-banner__btn {
  display: inline-block; margin-top: 1.2rem; padding: .9rem 2.6rem; border-radius: 999px;
  font-weight: 700; letter-spacing: .1em; font-size: .92rem;
  background: var(--d1-gold); color: #1a0f08;
}

/* ===== Goods ===== */
.goods__soon {
  max-width: 640px; margin: 0 auto; text-align: center;
  background: var(--panel); border: 1px solid var(--line); border-radius: 18px;
  padding: 64px 32px;
}
.goods__soon-en {
  font-family: "Cinzel", serif; font-weight: 700; letter-spacing: .25em;
  font-size: clamp(1.6rem, 5vw, 2.6rem);
  color: #f0ecdd;
}

/* GOODSセクションは今回非表示 */
.goods, .nav__item--hidden { display: none; }
.goods__soon-jp { margin-top: 1rem; font-size: .9rem; color: var(--text-dim); }

/* ===== Schedule ===== */
.schedule__tour { text-align: center; font-weight: 700; letter-spacing: .04em; margin-bottom: 40px; font-size: 1.05rem; }
.schedule__list { display: grid; grid-template-columns: repeat(2,1fr); gap: 26px; max-width: 880px; margin: 0 auto; }
.schedule__card { background: var(--panel); border: 1px solid var(--line); border-radius: 18px; overflow: hidden; }
.schedule__card--day1 { border-color: rgba(233,179,90,.35); }
.schedule__card--day2 { border-color: rgba(111,198,255,.35); }
.schedule__kv { aspect-ratio: 16/10; background-size: cover; background-position: center top; }
.schedule__body { padding: 26px 28px 30px; }
.schedule__head { display: flex; align-items: center; gap: .9rem; margin-bottom: .8rem; }
.schedule__day { font-family: "Cinzel", serif; font-weight: 700; font-size: .78rem; letter-spacing: .1em; padding: .25rem .7rem; border-radius: 6px; color: #1a0f08; }
.schedule__card--day1 .schedule__day { background: var(--d1-gold); }
.schedule__card--day2 .schedule__day { background: var(--d2-lt); }
.schedule__concept { font-family: "Cormorant Garamond", serif; font-style: italic; font-size: 1.4rem; }
.schedule__card--day1 .schedule__concept { color: var(--d1-gold); }
.schedule__card--day2 .schedule__concept { color: var(--d2-lt); }
.schedule__venue { font-size: 1.15rem; font-weight: 700; }
.schedule__date { font-family: "Noto Sans JP", sans-serif; font-weight: 700; font-size: 1.5rem; letter-spacing: .05em; margin-top: .3rem; }
.schedule__date span { font-weight: 500; font-size: 1rem; color: var(--text-dim); }
.schedule__time { margin-top: .5rem; color: var(--text-dim); font-size: .92rem; }
.schedule__time em { font-style: normal; font-size: .78rem; }
.schedule__card--day1 .schedule__time em { color: var(--d1-lt); }
.schedule__card--day2 .schedule__time em { color: var(--d2-lt); }
.schedule__note { text-align: center; margin-top: 28px; color: var(--text-dim); font-size: .82rem; }

/* ===== Ticket ===== */
.ticket__price { max-width: 540px; margin: 0 auto 48px; text-align: center; background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 34px; }
.ticket__price-label { display: block; color: var(--text-dim); font-size: .9rem; letter-spacing: .08em; margin-bottom: .6rem; }
.ticket__price-value {
  font-family: "Cinzel", serif; font-weight: 700; font-size: 3rem; line-height: 1;
  color: #f0ecdd;
}
.ticket__price-value small { font-family: "Noto Sans JP"; font-size: 1rem; color: var(--text-dim); }
.ticket__price-note { display: block; margin-top: .8rem; font-size: .76rem; color: var(--text-dim); }
.ticket__price-note + .ticket__price-note { margin-top: .15rem; }
.ticket__schedule { max-width: 640px; margin: 0 auto 40px; }
.ticket__sub { text-align: center; font-size: 1.3rem; margin-bottom: 24px; letter-spacing: .1em; }
.ticket__phase { background: var(--bg); border: 1px solid var(--line); border-radius: 14px; padding: 28px 26px; margin-bottom: 20px; text-align: center; }
.ticket__phase-title { display: inline-block; font-size: 1.05rem; font-weight: 700; letter-spacing: .08em; padding: .3rem 1.1rem; border-radius: 999px; margin-bottom: 1rem; background: transparent; border: 1px solid var(--d1-gold); color: var(--d1-gold); }
.ticket__dl { display: grid; grid-template-columns: auto auto; gap: .8rem 1.6rem; align-items: baseline; justify-content: center; text-align: left; }
.ticket__dl dt { color: var(--d1-gold); font-size: 1.05rem; font-weight: 700; white-space: nowrap; }
.ticket__dl dd { font-size: 1.15rem; }
.ticket__phase-extra { margin-top: 1rem; text-align: center; font-size: .78rem; color: var(--text-dim); }
.ticket__meta { text-align: center; color: var(--text-dim); font-size: .85rem; }
.ticket__meta p { margin: .2rem 0; }
.ticket__btn {
  display: block; width: 100%; max-width: 380px; margin: 0 auto; text-align: center;
  padding: 1.1rem; border-radius: 999px; font-weight: 700; letter-spacing: .1em;
  background: var(--d1-gold); color: #1a0f08;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease);
}
.ticket__btn:hover { transform: translateY(-3px); box-shadow: 0 12px 28px rgba(233,179,90,.35); }

/* ===== Notice ===== */
.notice__box { max-width: 760px; margin: 0 auto 22px; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.notice__title { padding: 1rem 1.4rem; font-size: .95rem; letter-spacing: .06em; background: #2a2540; }
.notice__text { padding: 1.2rem 1.4rem; font-size: .88rem; color: var(--text-dim); }
.notice__list { list-style: none; margin: 0 0 1rem; }
.notice__list:last-child { margin-bottom: 0; }
.notice__list li { padding-left: 1.1em; text-indent: -1.1em; margin-bottom: .45rem; }
.notice__list li::before { content: "●"; font-size: .6em; vertical-align: .25em; margin-right: .5em; }
.notice__sub { margin: 0 0 1rem; }
.notice__link { color: var(--d2-lt); text-decoration: underline; word-break: break-all; }

/* ===== Profile ===== */
.profile__inner { max-width: 820px; margin: 0 auto; }
.profile__img { margin: 0 0 40px; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; }
.profile__img img { width: 100%; height: auto; display: block; }
.profile__name { font-size: 1.8rem; font-weight: 900; }
.profile__name span { font-size: 1rem; color: var(--text-dim); font-weight: 400; }
.profile__sns { display: flex; gap: .8rem; margin: 1rem 0 1.4rem; }
.profile__sns a { width: 38px; height: 38px; display: flex; align-items: center; justify-content: center; border: 1px solid var(--line); border-radius: 50%; color: var(--text-dim); transition: .25s; }
.profile__sns a:hover { border-color: var(--text); color: var(--text); }
.profile__text { color: var(--text-dim); font-size: .92rem; }

/* Discography / Concert */
.profile__disco { margin-top: 2.4rem; }
.profile__disco-title {
  font-family: "Cinzel", serif; font-weight: 700; letter-spacing: .12em;
  font-size: 1rem; color: #f0ecdd; margin: 1.8rem 0 1rem;
  padding-bottom: .5rem; border-bottom: 1px solid var(--line);
}
.profile__disco-title:first-child { margin-top: 0; }
.profile__disco-list {
  display: grid; grid-template-columns: 5.5em 1fr; gap: .7rem 1.2rem;
  font-size: .88rem;
}
.profile__disco-list dt {
  font-family: "Cinzel", serif; font-weight: 700; letter-spacing: .03em;
  color: var(--text-dim); white-space: nowrap;
}
.profile__disco-list dd { color: var(--text-dim); line-height: 1.7; }

/* ===== Movie ===== */
.movie__grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 24px; max-width: 820px; margin: 0 auto; }
.movie__thumb { aspect-ratio: 16/9; display: flex; align-items: center; justify-content: center; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; color: var(--text-dim); font-family: "Cinzel",serif; letter-spacing: .12em; transition: transform .3s var(--ease); }
.movie__card:hover .movie__thumb { transform: scale(1.02); border-color: var(--d2); }

/* ===== Footer ===== */
.footer { padding: 40px 0; text-align: center; border-top: 1px solid var(--line); }
.footer__copy { font-family: "Cinzel", serif; font-size: .72rem; letter-spacing: .2em; color: var(--text-dim); }

/* ===== Responsive ===== */
@media (max-width: 860px) {
  .concept__cards { grid-template-columns: 1fr; }
  .profile__img { margin-bottom: 28px; }
}
@media (max-width: 768px) {
  .header__toggle { display: flex; }
  .nav { position: fixed; top: 72px; right: 0; width: 72%; max-width: 300px; height: calc(100vh - 72px); background: var(--bg-2); border-left: 1px solid var(--line); transform: translateX(100%); transition: transform .35s var(--ease); padding: 2rem; }
  .nav.is-open { transform: translateX(0); }
  .nav__list { flex-direction: column; gap: 1.5rem; }
  .nav__link { font-size: 1rem; }

  /* hero: stack panels vertically */
  .hero { height: auto; min-height: 0; }
  .hero__split { position: relative; flex-direction: column; }
  .hero__panel { min-height: 44vh; }
  .hero__panel:hover, .hero__split:hover .hero__panel:not(:hover) { flex: 1; filter: none; }
  .hero__panel-content { padding-bottom: 28px; }
  .hero__center { position: relative; top: auto; left: auto; transform: none; padding: 44px 1rem; background: var(--bg); width: 100%; }
  .hero__scroll { display: none; }   /* no scroll mark on mobile */

  .goods__grid { grid-template-columns: repeat(2,1fr); }
  .schedule__list { grid-template-columns: 1fr; }
  .movie__grid { grid-template-columns: 1fr; }

  /* tighten vertical rhythm */
  .section { padding: 60px 0; }
  .section__title { margin-bottom: 40px; }
  .section__title .en { font-size: clamp(1.5rem, 7vw, 2rem); }

  /* ticket schedule: shrink enlarged desktop sizes */
  .ticket__sub { font-size: 1.15rem; }
  .ticket__dl dt { font-size: .95rem; }
  .ticket__dl dd { font-size: 1rem; }

  /* survey banner */
  .survey-banner__box { padding: 36px 20px; }
}
@media (max-width: 420px) {
  .section { padding: 52px 0; }
  .container { width: 88%; }
  .header__logo { font-size: .78rem; letter-spacing: .08em; }

  /* hero text */
  .hero__sub { font-size: .7rem; letter-spacing: .25em; }
  .hero__title { font-size: clamp(1.9rem, 9vw, 2.6rem); }
  .hero__date { font-size: 1rem; }

  /* schedule / ticket sizing */
  .schedule__body { padding: 22px 20px 26px; }
  .schedule__date { font-size: 1.3rem; }
  .ticket__price-value { font-size: 2.4rem; }
  .ticket__dl { grid-template-columns: 1fr; gap: .2rem .4rem; text-align: center; }
  .ticket__dl dd { margin-bottom: .6rem; }
  .ticket__phase { padding: 20px 16px; }
  .ticket__btn { max-width: 100%; font-size: .92rem; }

  /* profile discography: stack date above text */
  .profile__disco-list { grid-template-columns: 1fr; gap: .2rem .4rem; }
  .profile__disco-list dd { margin-bottom: .7rem; }
}