:root {
  color-scheme: dark;
  --bg-deep: #232946;
  --bg-mid: #404b69;
  --text-main: #dbedf3;
  --text-accent: #ffd803;
  --text-muted: #b8c1ec;
  --accent: #cf0f47;
  --accent-strong: #ff0b55;
  --panel: rgba(35, 41, 70, 0.72);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  padding: clamp(1rem, 3vw, 2rem);
  text-align: center;
  background: linear-gradient(135deg, var(--bg-deep) 50%, var(--bg-mid) 100%);
  color: var(--text-main);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
}

img,
video {
  max-width: 100%;
  height: auto;
}

.site-header {
  width: min(100%, 62rem);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.brand-group {
  flex: 1 1 16rem;
}

h1 {
  font-size: clamp(2.4rem, 7vw, 5rem);
  color: var(--text-main);
  font-family: "Audiowide", cursive;
  text-shadow: 0.18rem 0 var(--text-accent);
  margin: 0;
  line-height: 1.1;
}

.tagline {
  margin: 0.35rem 0 0;
  color: var(--text-muted);
  font-size: clamp(0.85rem, 2.2vw, 1rem);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
}

.site-nav a {
  color: var(--text-main);
  text-decoration: none;
  padding: 0.5rem 0.85rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  transition: background 0.2s ease, transform 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: rgba(255, 255, 255, 0.16);
  transform: translateY(-2px);
}

main {
  width: min(100%, 62rem);
  display: flex;
  flex-direction: column;
  align-items: center;
}

footer {
  color: var(--text-main);
  font-family: "Audiowide", cursive;
  margin: 2rem 0 1rem;
  font-size: clamp(0.9rem, 2vw, 1rem);
}

.set {
  width: min(100%, 44rem);
  margin: clamp(1.5rem, 3vw, 2.5rem) auto 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 7rem), 1fr));
  gap: clamp(0.75rem, 2vw, 1.25rem);
  justify-items: center;
}

.w {
  background-image: url("assets/images/crash.png");
  background-repeat: no-repeat;
  background-position: center 15%;
}

.a {
  background-image: url("assets/images/snare.png");
  background-repeat: no-repeat;
  background-position: center 15%;
}

.s {
  background-image: url("assets/images/kick.png");
  background-repeat: no-repeat;
  background-position: center 15%;
}

.d {
  background-image: url("assets/images/tom1.png");
  background-repeat: no-repeat;
  background-position: center 15%;
}

.f {
  background-image: url("assets/images/tom2.png");
  background-repeat: no-repeat;
  background-position: center 15%;
}

.g {
  background-image: url("assets/images/tom3.png");
  background-repeat: no-repeat;
  background-position: center 15%;
}

.h {
  background-image: url("assets/images/tom4.png");
  background-repeat: no-repeat;
  background-position: center 15%;
}

.pressed {
  box-shadow: 0 3px 4px 0 var(--text-main);
  opacity: 0.7;
  transform: scale(0.96);
  background: #ffe082;
}

.drum {
  outline: none;
  border: clamp(0.3rem, 1vw, 0.6rem) solid #404b69;
  font-size: clamp(1.35rem, 3.2vw, 2.6rem);
  font-family: "Audiowide", cursive;
  font-weight: 900;
  color: #da0463;
  text-shadow: 0.16rem 0 var(--text-main);
  border-radius: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: min(100%, 7.5rem);
  aspect-ratio: 1 / 1;
  min-height: clamp(4.5rem, 18vw, 7rem);
  text-align: center;
  background-color: white;
  box-shadow: 0 0.35rem 1.5rem rgba(40, 49, 73, 0.15);
  transition: box-shadow 0.2s, opacity 0.2s, border-color 0.2s, transform 0.1s, background 0.2s;
  cursor: pointer;
  padding-top: 1.2rem;
  background-size: clamp(2rem, 6vw, 3rem) auto;
}

.drum:hover,
.drum:focus-visible {
  border-color: var(--accent-strong);
  background: #f7f7f7;
  box-shadow: 0 0.5rem 2rem rgba(218, 4, 99, 0.15);
  transform: scale(1.03);
}

.drum:active,
.pressed {
  box-shadow: 0 3px 4px 0 var(--text-main);
  opacity: 0.7;
  transform: scale(0.96);
  background: #ffe082;
}

.drum.disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.challenge-btn {
  margin: 1rem auto 1.5rem;
  padding: 0.8rem 1.6rem;
  font-family: "Audiowide", cursive;
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 0.6rem;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
  width: min(100%, 16rem);
}

.challenge-btn:hover,
.challenge-btn:focus-visible {
  background: var(--accent-strong);
  transform: translateY(-2px);
}

#challenge-status {
  color: #ffe082;
  font-size: clamp(1rem, 2vw, 1.1rem);
  margin-bottom: 1rem;
  min-height: 1.5em;
}

#info-panel {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
  width: min(100%, 44rem);
  margin: 1.5rem auto 0;
  color: var(--text-accent);
  font-size: clamp(0.95rem, 2vw, 1.05rem);
  background: var(--panel);
  border-radius: 0.8rem;
  padding: clamp(1rem, 2vw, 1.5rem);
}

#instructions {
  color: var(--text-muted);
  text-align: left;
}

#scoreboard {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.4rem;
  text-align: center;
}

#scoreboard span {
  margin: 0 0.25rem;
}

.drum.wrong {
  background: #ff6f91 !important;
  color: #232946 !important;
  animation: shake 0.3s;
}

@keyframes shake {
  0% { transform: translateX(0); }
  25% { transform: translateX(-8px); }
  50% { transform: translateX(8px); }
  75% { transform: translateX(-8px); }
  100% { transform: translateX(0); }
}

@media (min-width: 700px) {
  .site-header {
    justify-content: space-between;
  }

  .site-nav {
    margin-left: auto;
  }
}