:root {
  --bg: #0a0a0a;
  --text: #eeeeee;
  --accent: #e30613;
  --card: #1a1a1a;
}

[data-theme="light"] {
  --bg: #f8f8f8;
  --text: #111111;
  --card: #ffffff;
}

*{
  margin:0;
  padding:0;
  box-sizing:border-box;
}

body{
  font-family:'Segoe UI',system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  overflow-x:hidden;
  transition:0.5s;
}

/* HEADER */

header{
  position:fixed;
  top:0;
  width:100%;
  background:rgba(10,10,10,0.97);
  backdrop-filter:blur(15px);
  z-index:1000;

  padding:1.3rem 6%;

  display:flex;
  justify-content:space-between;
  align-items:center;

  border-bottom:1px solid rgba(227,6,19,0.25);
}

[data-theme="light"] header{
  background:rgba(248,248,248,0.97);
}

.logo{
  font-size:2.7rem;
  font-weight:900;
  letter-spacing:4px;
  color:white;
  text-shadow:0 0 30px var(--accent);
}

[data-theme="light"] .logo{
  color:#000;
}

nav a{
  color:white;
  text-decoration:none;
  margin:0 22px;
  font-weight:500;
  font-size:1.15rem;
  position:relative;
}

[data-theme="light"] nav a{
  color:#111;
}

nav a::after{
  content:'';
  position:absolute;
  bottom:-6px;
  left:0;
  width:0;
  height:3px;
  background:var(--accent);
  transition:0.4s;
}

nav a:hover::after{
  width:100%;
}

/* RIGHT */

.header-right{
  display:flex;
  align-items:center;
  gap:25px;
}

.theme-toggle,
.cart{
  background:none;
  border:none;
  font-size:2rem;
  cursor:pointer;
  color:white;
}

[data-theme="light"] .theme-toggle,
[data-theme="light"] .cart{
  color:#111;
}

.cart{
  position:relative;
}

.cart-count{
  position:absolute;
  top:-8px;
  right:-10px;

  background:var(--accent);
  color:white;

  min-width:23px;
  height:23px;

  border-radius:50%;

  display:flex;
  align-items:center;
  justify-content:center;

  font-size:0.85rem;
  font-weight:bold;
}

/* BAŞKAN */

.president-section{
  padding-top:170px;

  display:flex;
  justify-content:center;
}

.president-card{
  width:290px;
  background:var(--card);
  border-radius:20px;
  text-align:center;
  padding:25px;

  box-shadow:0 10px 30px rgba(0,0,0,0.5);

  transition:0.4s;
}

.president-card:hover{
  transform:translateY(-10px);
}

.president-card img{
  width:190px;
  height:190px;
  object-fit:cover;
  border-radius:50%;
}

.president-card h2{
  margin-top:18px;
  font-size:2rem;
}

.president-card p{
  color:#bdbdbd;
  margin-top:8px;
  font-size:1.1rem;
}

/* TEAM */

.team-container{
  width:92%;
  margin:70px auto;

  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:35px;
}

.team-card{
  background:var(--card);
  border-radius:20px;
  padding:22px;
  text-align:center;

  box-shadow:0 10px 30px rgba(0,0,0,0.45);

  transition:0.4s;
}

.team-card:hover{
  transform:translateY(-12px);
}

.team-card img{
  width:100%;
  height:240px;
  object-fit:contain;
}

.team-card h3{
  margin-top:15px;
  font-size:1.5rem;
}

.team-card p{
  margin-top:8px;
  color:#bdbdbd;
  font-size:1rem;
}

/* RESPONSIVE */

@media(max-width:1100px){

  nav a{
    margin:0 10px;
    font-size:1rem;
  }

  .logo{
    font-size:2rem;
  }

}

@media(max-width:850px){

  header{
    flex-direction:column;
    gap:20px;
  }

  nav{
    display:flex;
    flex-wrap:wrap;
    justify-content:center;
  }

  .president-section{
    padding-top:230px;
  }

}
.music-player {
  position: fixed;
  bottom: 30px;
  left: 30px;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 9999;
}

.music-btn {
  width: 65px;
  height: 65px;
  background: #e30613;
  color: white;
  border: none;
  border-radius: 50%;
  font-size: 2rem;
  cursor: pointer;
  box-shadow: 0 8px 25px rgba(227,6,19,0.6);
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.music-btn:hover {
  transform: scale(1.15);
}

.music-btn.playing {
  background: #00c853;
  animation: pulse 2s infinite;
}