:root {
  --bg-main: #0B0E11; /* Gerçek karanlık mod */
  --bg-panel: #1E2329; /* Panel arkaplanı */
  --bg-hover: #2B3139;
  --text-main: #EAECEF;
  --text-muted: #848E9C;
  --binance-yellow: #FCD535;
  --profit-green: #0ECB81;
  --loss-red: #F6465D;
}

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

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.navbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 15px 30px; background: var(--bg-panel);
  border-bottom: 1px solid #2B3139;
}

.logo { font-size: 1.2rem; font-weight: bold; color: var(--binance-yellow); }

.main-layout {
  display: grid;
  grid-template-columns: 350px 1fr; /* Sol taraf portföy, sağ taraf dev piyasa tablosu */
  gap: 20px; padding: 20px;
}

.panel {
  background: var(--bg-panel); border-radius: 8px;
  padding: 20px; box-shadow: 0 2px 10px rgba(0,0,0,0.5);
}

.form-panel { max-width: 450px; margin: 50px auto; text-align: center; }

/* Formlar ve Inputlar (DÜZELTİLDİ) */
.form-group { margin-bottom: 15px; text-align: left; width: 100%; }
.form-group label { display: block; margin-bottom: 5px; color: var(--text-muted); font-size: 0.9rem; }
.form-group input, .form-group textarea, #market-search, #chat-input, .input-row input {
  width: 100%; padding: 12px; border-radius: 6px;
  background: var(--bg-main); border: 1px solid #2B3139; 
  color: var(--text-main); font-family: inherit; outline: none;
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--binance-yellow); }
.input-row { display: flex; gap: 5px; }

/* Butonlar */
button { border: none; padding: 10px 15px; border-radius: 6px; cursor: pointer; font-weight: bold; transition: 0.2s; color: #1E2329;}
.btn-primary { background: var(--binance-yellow); width: 100%; }
.btn-primary:hover { background: #e0bd2e; }
.btn-success { background: var(--profit-green); color: white;}
.btn-success:hover { background: #0b9e65; }

/* CoinMarketCap Stili Tablolar */
.market-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 15px; flex-wrap: wrap; gap: 10px; }
.market-tabs { display: flex; gap: 10px; }
.tab-btn { background: transparent; color: var(--text-muted); padding: 5px 15px; border-radius: 20px; border: 1px solid #2B3139; }
.tab-btn.active { background: var(--bg-hover); color: var(--text-main); border-color: var(--text-muted); }

.table-responsive { overflow-x: auto; }
.cmc-table { width: 100%; border-collapse: collapse; text-align: right; font-size: 0.95rem; }
.cmc-table th { color: var(--text-muted); font-weight: normal; padding: 12px 8px; border-bottom: 1px solid #2B3139; }
.cmc-table td { padding: 12px 8px; border-bottom: 1px solid #2B3139; vertical-align: middle; }
.cmc-table tbody tr:hover { background: var(--bg-hover); }

/* Renkler ve Semboller */
.text-green { color: var(--profit-green) !important; }
.text-red { color: var(--loss-red) !important; }
.text-muted { color: var(--text-muted); font-size: 0.85rem;}
.symbol-name { font-weight: bold; color: var(--text-main); display: flex; align-items: center; gap:8px;}

/* Uçan Sohbet (Floating Chat) */
#floating-chat-btn {
  position: fixed; bottom: 20px; right: 20px;
  background: var(--binance-yellow); color: #1E2329;
  padding: 15px 25px; border-radius: 30px; font-size: 1rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.5); z-index: 1000;
}
#floating-chat-box {
  position: fixed; bottom: 80px; right: 20px;
  width: 350px; height: 500px; background: var(--bg-panel);
  border-radius: 12px; box-shadow: 0 5px 20px rgba(0,0,0,0.8);
  display: flex; flex-direction: column; z-index: 1001; border: 1px solid #2B3139;
}
.chat-header { padding: 15px; border-bottom: 1px solid #2B3139; display: flex; justify-content: space-between; font-weight: bold; }
.chat-messages { flex: 1; overflow-y: auto; padding: 15px; }
.chat-message { margin-bottom: 12px; font-size: 0.9rem; word-wrap: break-word; }
.chat-username { color: var(--binance-yellow); font-weight: bold; cursor: pointer; }
.chat-input-area { padding: 10px; border-top: 1px solid #2B3139; display: flex; gap: 5px; }

/* Modallar vb. */
.hidden { display: none !important; }
.modal { position: fixed; top:0; left:0; width:100%; height:100%; background: rgba(0,0,0,0.8); display:flex; justify-content:center; align-items:center; z-index: 2000;}
.modal-content { background: var(--bg-panel); padding: 30px; border-radius: 8px; width: 400px; max-width: 90%;}
.close-modal { float: right; font-size: 24px; cursor: pointer; color: var(--loss-red); }
a { color: var(--binance-yellow); text-decoration: none; }
.ad-banner { background: #1E2329; text-align: center; padding: 15px; margin-top: 20px; color: var(--text-muted); font-size: 0.8rem; }