/* ============ Temel değişkenler ============ */
:root{
  --bg:#626885;           /* arka plan tonu */
  --ink:#e8ecff;          /* metin */
  --muted:#aab2d8;        /* ikincil metin */
  --accent:#6e8bff;
  --card:#161a33;
  --card-2:#1b2142;
  --ring:#9db0ff;
  --shadow:0 14px 40px rgba(0,0,0,.35);
  --radius:18px;
}

/* ============ Reset ============ */
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  min-height:100vh;

  /* Color + GRADIENT layers */
  background-color: var(--bg);
  background-image:
    radial-gradient(1200px 600px at 20% -10%, rgba(255,255,255,.08), transparent 60%),
    radial-gradient(1000px 600px at 110% 20%, rgba(110,139,255,.10), transparent 60%);
  background-repeat: no-repeat, no-repeat;
  background-size: 1200px 600px, 1000px 600px;
  background-position: 20% -10%, 110% 20%;

  color:var(--ink);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial, Helvetica, sans-serif;
  line-height:1.5;
}

/* ============ Header ============ */
.site-header{
  max-width:1100px;
  margin:40px auto 20px;
  padding:0 24px;
}
.site-header h1{
  margin:0 0 6px;
  font-size: clamp(32px, 5vw, 56px);
  letter-spacing:.3px;
}
.site-header p{
  margin:0;
  color:var(--muted);
  font-size: clamp(14px, 1.6vw, 18px);
}

/* ============ IMG ============ */
.drum-image{
  max-width:1100px;
  margin:10px auto 24px;     
  padding:0 24px;
  display:flex;
  justify-content:center;
}
.drum-image img{
  width: clamp(320px, 60vw, 640px);  
  height:auto;
  display:block;
  filter: drop-shadow(0 10px 30px rgba(0,0,0,.25));
  user-select:none;
  pointer-events:none;             
}

/* ============ Drum Kit Layout ============ */
main{ display:block }
.kit{
  max-width:1100px;
  margin:20px auto 80px;
  padding:24px;
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap:20px;
}

/* ============ Pad (buton) ============ */
.pad{
  position:relative;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  gap:8px;

  border:1px solid rgba(255,255,255,.08);
  background: linear-gradient(180deg, var(--card), var(--card-2));
  color:var(--ink);
  border-radius:var(--radius);
  padding:26px 18px 24px;
  cursor:pointer;
  box-shadow: var(--shadow);
  transition: transform .08s ease, box-shadow .2s ease, border-color .2s ease;
  user-select:none;
}

/* Keyboard letter */
.pad .key{
  display:block;
  font-weight:900;
  font-size: clamp(22px, 5vw, 32px);
  letter-spacing:.04em;
  line-height:1;
}

/* Label (Kick / Snare vs.) */
.pad .label{
  display:block;
  font-size:14px;
  letter-spacing:.02em;
  color:var(--muted);
}

/* Hover/focus */
.pad:hover,
.pad:focus-visible{
  border-color: rgba(157,176,255,.6);
  outline: none;
  box-shadow: 0 18px 44px rgba(110,139,255,.25);
}

/* Press effect – on click JS will add 'playing' class*/
.pad.playing{
  transform: translateY(2px) scale(.98);
  box-shadow: 0 8px 24px rgba(0,0,0,.45), inset 0 0 0 2px var(--ring);
}

/* Bonus little sparkle */
.pad.playing::after{
  content:"";
  position:absolute; inset:0;
  border-radius:inherit;
  box-shadow: inset 0 0 22px rgba(157,176,255,.55);
  pointer-events:none;
}

/* ==== BONUS ANIMATIONS ==== */
@keyframes k-bounce { 0%{transform:translateY(0)} 35%{transform:translateY(-8px)} 70%{transform:translateY(2px)} 100%{transform:translateY(0)} }
@keyframes k-shake  { 0%,100%{transform:translateX(0)} 25%{transform:translateX(-5px)} 50%{transform:translateX(5px)} 75%{transform:translateX(-3px)} }
@keyframes k-pulse  { 0%{box-shadow:0 0 0 0 rgba(157,176,255,.55)} 100%{box-shadow:0 0 0 16px rgba(157,176,255,0)} }
@keyframes k-wobble { 0%{transform:rotate(0)} 30%{transform:rotate(-4deg)} 60%{transform:rotate(3deg)} 100%{transform:rotate(0)} }
@keyframes k-pop    { 0%{transform:scale(1)} 40%{transform:scale(1.06)} 100%{transform:scale(1)} }
@keyframes k-spin   { 0%{transform:rotate(0)} 100%{transform:rotate(360deg)} }

.anim-bounce{ animation: k-bounce .28s ease; }
.anim-shake { animation: k-shake  .22s ease; }
.anim-pulse { animation: k-pulse  .5s  ease-out; }
.anim-wobble{ animation: k-wobble .28s ease; }
.anim-pop   { animation: k-pop    .18s ease; }
.anim-spin  { animation: k-spin   .45s linear; }

/* Small boost during animation */
.pad.anim-bounce,
.pad.anim-shake,
.pad.anim-pop,
.pad.anim-wobble{
  will-change: transform;
}


/* ============ Small screen improvements ============ */
@media (max-width: 560px){
  .drum-image img{ width: clamp(260px, 80vw, 480px); }
  .kit{ gap:14px; padding:16px; }
}