:root {
  --night: #070918;
  --midnight: #111632;
  --ink: #17121f;
  --gold: #f7c85f;
  --rose: #f04480;
  --cyan: #28c8ee;
  --white: #ffffff;
  --soft: rgba(255, 255, 255, 0.76);
  --line: rgba(255, 255, 255, 0.16);
  --panel: rgba(255, 255, 255, 0.08);
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--white);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  line-height: 1.6;
  background:
    radial-gradient(circle at 14% 12%, rgba(240, 68, 128, 0.35), transparent 24rem),
    radial-gradient(circle at 82% 8%, rgba(40, 200, 238, 0.26), transparent 27rem),
    linear-gradient(180deg, var(--night), var(--midnight) 52%, var(--night));
}

a {
  color: inherit;
  text-decoration: none;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px clamp(18px, 5vw, 64px);
  background: rgba(7, 9, 24, 0.82);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 900;
}

.brand img {
  width: 52px;
  height: 52px;
  object-fit: cover;
  border-radius: 15px;
  box-shadow: 0 10px 28px rgba(247, 200, 95, 0.24);
}

.nav-menu {
  display: flex;
  gap: 8px;
  font-weight: 800;
}

.nav-menu a {
  padding: 10px 14px;
  color: var(--soft);
  border-radius: 999px;
}

.nav-menu a:hover {
  color: var(--white);
  background: var(--panel);
}

.page-layout {
  width: min(1440px, calc(100% - 32px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 360px);
  gap: 24px;
  align-items: start;
}

.main-content {
  min-width: 0;
}

.hero {
  min-height: auto;
  padding: clamp(44px, 7vw, 90px) 0;
}

.hero-text {
  max-width: 900px;
}

.eyebrow {
  display: inline-flex;
  width: fit-content;
  margin: 0 0 16px;
  padding: 8px 13px;
  color: var(--gold);
  font-size: 0.92rem;
  font-weight: 900;
  border: 1px solid rgba(247, 200, 95, 0.35);
  border-radius: 999px;
  background: rgba(247, 200, 95, 0.09);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 22px;
  font-size: clamp(2.1rem, 4.2vw, 4.4rem);
  line-height: 1;
  white-space: nowrap;
}

h2 {
  margin-bottom: 12px;
  font-size: clamp(1.9rem, 4vw, 3.5rem);
  line-height: 0.98;
}

.lead,
.intro-card p,
.section-heading p,
.video-note,
.site-footer p {
  color: var(--soft);
}

.lead {
  max-width: 760px;
  font-size: clamp(1.12rem, 2vw, 1.34rem);
}

.meaning-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(120px, 180px));
  gap: 14px;
  margin-top: 34px;
}

.meaning-grid article {
  min-height: 128px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--panel);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.15);
}

.meaning-grid strong {
  display: block;
  color: var(--gold);
  font-size: 3rem;
  line-height: 1;
}

.meaning-grid span {
  color: var(--soft);
  font-weight: 800;
}

.columns-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  align-items: start;
}

.column-card {
  position: relative;
  min-height: 100%;
  padding: clamp(24px, 4vw, 34px);
  border: 1px solid var(--line);
  border-radius: 30px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.column-number {
  position: absolute;
  top: 22px;
  right: 24px;
  color: rgba(255, 255, 255, 0.16);
  font-size: 2.8rem;
  line-height: 1;
  font-weight: 950;
}

.intro-card {
  display: grid;
  align-content: start;
  gap: 12px;
}

.ticket-card {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(320px, 1.1fr);
  gap: 22px;
  align-items: start;
}

.ticket-card .column-number,
.ticket-card .eyebrow,
.ticket-card h2 {
  grid-column: 1 / -1;
}

.intro-card p,
.video-note {
  margin-bottom: 0;
}

.poster {
  width: 100%;
  border: 1px solid rgba(247, 200, 95, 0.28);
  border-radius: 20px;
  box-shadow: 0 22px 56px rgba(0, 0, 0, 0.36);
}

.ticket-info {
  color: var(--ink);
  background: #fff8e7;
}

.ticket-info.compact {
  margin-top: 16px;
  padding: 18px;
  border-radius: 18px;
}

.ticket-info ul {
  display: grid;
  gap: 8px;
  padding: 0;
  margin: 0 0 18px;
  list-style: none;
}

.ticket-info li {
  padding: 10px 0;
  border-bottom: 1px solid rgba(23, 18, 31, 0.12);
}

.ticket-info span,
.ticket-info small {
  display: block;
  color: rgba(23, 18, 31, 0.62);
  font-weight: 800;
}

.ticket-info strong {
  display: block;
  margin-top: 4px;
  font-size: 1.14rem;
  line-height: 1.2;
}

.buy-button {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  padding: 13px 22px;
  color: var(--ink);
  font-weight: 900;
  border-radius: 999px;
  background: var(--gold);
  box-shadow: 0 14px 32px rgba(247, 200, 95, 0.36);
}

.video-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 24px 0;
}

.video-item,
.music-item {
  display: grid;
  gap: 14px;
  min-height: 92px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background:
    linear-gradient(145deg, rgba(247, 200, 95, 0.14), rgba(40, 200, 238, 0.08)),
    rgba(255, 255, 255, 0.06);
}

.video-item {
  grid-template-columns: 1fr;
  align-content: start;
}

.music-item {
  grid-template-columns: 1fr;
  align-content: start;
}

.video-item img,
.music-item img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 12px;
  background: rgba(7, 9, 24, 0.55);
}

.video-item span,
.music-item span {
  color: var(--gold);
  font-weight: 900;
  line-height: 1.25;
}

.video-item strong,
.music-item strong {
  color: var(--white);
  font-size: 0.95rem;
}

.music-section {
  margin-top: 22px;
}

.members-section {
  margin-top: 22px;
}

.music-card {
  min-height: auto;
}

.music-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 24px;
}

.members-intro {
  max-width: 760px;
  color: var(--soft);
}

.member-showcase {
  display: grid;
  gap: 24px;
  margin-top: 24px;
}

.member-feature,
.member-group {
  display: grid;
  gap: 14px;
}

.member-feature h3,
.member-group h3 {
  margin-bottom: 0;
  color: var(--gold);
  font-size: 1.35rem;
}

.member-feature img {
  width: 100%;
  border: 1px solid rgba(247, 200, 95, 0.32);
  border-radius: 18px;
  box-shadow: 0 18px 46px rgba(0, 0, 0, 0.28);
}

.member-grid {
  display: grid;
  gap: 14px;
}

.teacher-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.performer-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.member-photo {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background:
    linear-gradient(145deg, rgba(240, 68, 128, 0.14), rgba(247, 200, 95, 0.1)),
    rgba(255, 255, 255, 0.06);
}

.member-photo img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: rgba(7, 9, 24, 0.55);
}

.teacher-grid .member-photo img,
.performer-grid .member-photo img {
  cursor: zoom-in;
}

.teacher-grid .member-photo img {
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

.member-photo figcaption {
  padding: 12px 14px 14px;
  color: var(--white);
  font-weight: 900;
  line-height: 1.2;
}

.sponsor-sidebar {
  position: sticky;
  top: 96px;
  width: 100%;
  max-height: none;
  overflow: visible;
  margin-top: 0;
  padding: 24px;
  border: 1px solid rgba(247, 200, 95, 0.3);
  border-radius: 30px;
  background:
    linear-gradient(145deg, rgba(247, 200, 95, 0.16), rgba(40, 200, 238, 0.08)),
    rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.sponsor-sidebar h2 {
  font-size: clamp(1.65rem, 3vw, 2.4rem);
}

.sponsor-intro {
  color: var(--soft);
}

.ad-slots {
  display: grid;
  gap: 14px;
  margin: 22px 0;
}

.ad-slot {
  margin: 0;
  overflow: hidden;
  padding: 8px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 18px;
  background: rgba(7, 9, 24, 0.48);
}

.ad-slot.featured-ad {
  background: linear-gradient(145deg, rgba(247, 200, 95, 0.22), rgba(240, 68, 128, 0.16));
}

.ad-slot img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 12px;
  background: #fff;
}

.ad-landscape {
  aspect-ratio: 3 / 2;
}

.ad-wide {
  aspect-ratio: 7 / 4;
}

.ad-portrait {
  aspect-ratio: 4 / 5;
}

.ad-tall {
  aspect-ratio: 2 / 3;
}

.sponsor-button {
  display: inline-flex;
  width: 100%;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 12px 16px;
  border-radius: 999px;
  color: var(--ink);
  background: var(--gold);
  font-weight: 900;
}

.site-footer {
  width: min(1180px, calc(100% - 32px));
  margin: 72px auto 0;
  padding: 28px 0 42px;
  display: flex;
  align-items: center;
  gap: 16px;
  border-top: 1px solid var(--line);
}

.site-footer img {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: 14px;
}

.site-footer p {
  margin-bottom: 0;
}

.image-lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: clamp(18px, 4vw, 48px);
  background: rgba(7, 9, 24, 0.88);
  backdrop-filter: blur(12px);
}

.image-lightbox[hidden] {
  display: none;
}

.image-lightbox img {
  max-width: min(1120px, 94vw);
  max-height: 88vh;
  object-fit: contain;
  border: 1px solid rgba(247, 200, 95, 0.45);
  border-radius: 18px;
  background: rgba(7, 9, 24, 0.8);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.55);
}

.lightbox-close {
  position: fixed;
  top: 18px;
  right: 18px;
  width: 46px;
  height: 46px;
  color: var(--ink);
  font-size: 2rem;
  line-height: 1;
  border: 0;
  border-radius: 50%;
  background: var(--gold);
  cursor: pointer;
}

@media (max-width: 980px) {
  .page-layout {
    width: min(1180px, calc(100% - 32px));
    grid-template-columns: 1fr;
  }

  .hero,
  .columns-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .sponsor-sidebar {
    position: static;
    margin-top: 28px;
  }

  .ticket-card {
    grid-template-columns: 1fr;
  }

  .music-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .video-list {
    grid-template-columns: 1fr;
  }

  .member-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-menu {
    flex-wrap: wrap;
  }

  .meaning-grid {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: clamp(1.75rem, 8vw, 2.4rem);
  }

  .music-list {
    grid-template-columns: 1fr;
  }

}