:root {
  --night: #050914;
  --field: #102819;
  --panel: rgba(9, 17, 31, 0.82);
  --panel-solid: #0b1220;
  --line: rgba(255, 255, 255, 0.14);
  --white: #f8fbff;
  --muted: #b9c5d8;
  --gold: #ffd46b;
  --orange: #ff8b24;
  --blue: #38a9ff;
  --red: #ff3e3e;
  --green: #42e29a;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.36);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 18% 0%, rgba(56, 169, 255, 0.18), transparent 34rem),
    radial-gradient(circle at 88% 4%, rgba(255, 139, 36, 0.14), transparent 28rem),
    linear-gradient(180deg, #050914 0%, #09101d 42%, #08140d 100%);
  color: var(--white);
  font-family: "Arial", "Helvetica Neue", sans-serif;
  line-height: 1.55;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.42), transparent 70%);
}

a {
  color: inherit;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(5, 9, 20, 0.84);
  backdrop-filter: blur(18px);
}

.nav {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  font-weight: 900;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background:
    radial-gradient(circle, var(--gold) 0 18%, transparent 19% 100%),
    conic-gradient(from 20deg, var(--orange), var(--gold), var(--blue), var(--orange));
  box-shadow: 0 0 28px rgba(255, 212, 107, 0.35);
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--gold);
}

.hero {
  min-height: min(760px, calc(100vh - 72px));
  display: grid;
  align-items: end;
  background:
    linear-gradient(90deg, rgba(5, 9, 20, 0.78), rgba(5, 9, 20, 0.18) 54%, rgba(5, 9, 20, 0.42)),
    url("images/game-day-groove-hero.png") center / cover no-repeat;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: clamp(42px, 8vw, 92px) 0;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--gold);
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 0.96;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  font-size: clamp(3.1rem, 9vw, 8.2rem);
  font-weight: 950;
  text-shadow: 0 8px 38px rgba(0, 0, 0, 0.72);
}

.hero h1 span {
  display: block;
  color: var(--gold);
  font-size: clamp(1.35rem, 3.8vw, 3.25rem);
  line-height: 1.05;
  margin-top: 18px;
}

.hero-lines {
  margin: 28px 0 0;
  color: var(--white);
  font-size: clamp(1.35rem, 3vw, 2.4rem);
  font-weight: 900;
  line-height: 1.08;
  text-transform: uppercase;
}

.hero-copy {
  max-width: 760px;
  margin: 24px 0 0;
  color: #dde8f7;
  font-size: clamp(1rem, 1.8vw, 1.22rem);
}

.hero-actions,
.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.button,
.purchase-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid rgba(255, 212, 107, 0.72);
  border-radius: 8px;
  background: linear-gradient(135deg, #fff2ad, #ffb329 54%, #e76d14);
  color: #07111f;
  box-shadow: 0 16px 32px rgba(255, 139, 36, 0.2);
  font-weight: 950;
  letter-spacing: 0.04em;
  text-decoration: none;
  text-transform: uppercase;
  cursor: pointer;
}

.button.secondary {
  background: rgba(5, 12, 23, 0.72);
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.28);
  box-shadow: none;
}

.purchase-button[disabled] {
  cursor: not-allowed;
  opacity: 0.78;
}

.section {
  padding: clamp(54px, 7vw, 94px) 0;
}

.container {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.section-heading {
  max-width: 820px;
  margin-bottom: 30px;
}

.section-heading h2 {
  font-size: clamp(2.1rem, 5vw, 4.4rem);
}

.section-heading p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.feature-card,
.song-card,
.sales-card,
.bonus-card,
.contact-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.035));
  box-shadow: var(--shadow);
}

.feature-card {
  padding: 18px;
  min-height: 150px;
}

.feature-card b {
  display: block;
  color: var(--gold);
  font-size: 1.8rem;
  line-height: 1;
}

.feature-card span {
  display: block;
  margin-top: 14px;
  color: #d9e3f3;
  font-weight: 800;
}

.player-list {
  display: grid;
  gap: 16px;
}

.song-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 18px;
  padding: 18px;
}

.track-number {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 212, 107, 0.24), rgba(255, 139, 36, 0.12));
  border: 1px solid rgba(255, 212, 107, 0.52);
  color: var(--gold);
  font-weight: 950;
}

.song-card h3 {
  overflow-wrap: anywhere;
  font-size: clamp(1.12rem, 2.4vw, 1.6rem);
}

.song-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 10px 0 12px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

audio {
  width: 100%;
  max-width: 100%;
  accent-color: var(--orange);
}

.sales-card {
  overflow: hidden;
  background: linear-gradient(135deg, rgba(255, 139, 36, 0.12), rgba(56, 169, 255, 0.08)), var(--panel-solid);
}

.sales-card img {
  width: 100%;
  border-bottom: 1px solid var(--line);
}

.sales-copy {
  padding: clamp(22px, 4vw, 38px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
}

.sales-copy h2 {
  font-size: clamp(2rem, 4.8vw, 4rem);
}

.sales-copy p,
.bonus-card p,
.contact-card p {
  color: var(--muted);
}

.checkout-note {
  margin: 10px 0 0;
  color: #d9e3f3;
  font-size: 0.92rem;
}

.bonus-card,
.contact-card {
  padding: clamp(22px, 4vw, 34px);
}

.bonus-card {
  border-color: rgba(56, 169, 255, 0.34);
  background:
    linear-gradient(135deg, rgba(56, 169, 255, 0.12), rgba(255, 212, 107, 0.07)),
    rgba(9, 17, 31, 0.82);
}

.use-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.use-list li {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  padding: 14px;
  color: #dbe6f5;
  background: rgba(255, 255, 255, 0.045);
  font-weight: 800;
}

.contact-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.55fr);
  gap: 24px;
  align-items: start;
}

.inquiry-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.inquiry-list li {
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: #dbe6f5;
  font-weight: 800;
}

.contact-note {
  border: 1px solid rgba(255, 212, 107, 0.32);
  border-radius: 8px;
  padding: 18px;
  color: var(--muted);
  background: rgba(255, 212, 107, 0.08);
}

.site-footer {
  padding: 30px 0 42px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.footer-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}

.footer-inner a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 800;
}

@media (max-width: 900px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 16px 0;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    justify-content: flex-start;
    padding-bottom: 2px;
  }

  .hero {
    min-height: 620px;
    background-position: 60% center;
  }

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

  .sales-copy,
  .contact-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .hero {
    min-height: 560px;
    background-position: 68% center;
  }

  .hero-inner {
    padding-bottom: 40px;
  }

  .hero-actions,
  .button-row {
    flex-direction: column;
  }

  .button,
  .purchase-button {
    width: 100%;
  }

  .feature-grid,
  .use-list {
    grid-template-columns: 1fr;
  }

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