@import url("https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;700&display=swap");

:root {
  --bg-dark: #0b0e11;
  --bg-card: #1e2329;
  --primary: #fcd535; /* Binance Yellow */
  --green: #0ecb81; /* Bullish */
  --red: #f6465d; /* Bearish */
  --text: #eaecef;
  --text-dim: #848e9c;
  --border: #2b3139;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "DM Sans", sans-serif;
  text-decoration: none;
  list-style: none;
}

body {
  background: var(--bg-dark);
  color: var(--text);
  overflow-x: hidden;
}

/* --- Navbar (Landing) --- */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 5%;
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 14, 17, 0.95);
  border-bottom: 1px solid var(--border);
}
.logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-links a {
  margin-left: 30px;
  color: var(--text);
  font-weight: 500;
}
.nav-links a:hover {
  color: var(--primary);
}
.btn {
  padding: 10px 24px;
  background: var(--primary);
  color: #000;
  border-radius: 4px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: 0.3s;
}
.btn:hover {
  opacity: 0.9;
}

/* --- Dashboard Layout --- */
.dash-container {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 250px;
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  padding: 20px;
  display: flex;
  flex-direction: column;
  position: fixed;
  height: 100%;
  top: 0;
  left: 0;
  transition: 0.3s;
  z-index: 99;
}
.sidebar-link {
  display: flex;
  align-items: center;
  gap: 15px;
  color: var(--text-dim);
  padding: 15px;
  border-radius: 8px;
  margin-bottom: 5px;
  transition: 0.3s;
}
.sidebar-link:hover,
.sidebar-link.active {
  background: #2b3139;
  color: var(--primary);
}
.sidebar-link i {
  font-size: 20px;
  width: 25px;
}

.main-content {
  flex: 1;
  margin-left: 250px;
  padding: 30px;
}

/* --- Cards & Charts --- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
}
.grid-2 {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
}

.card {
  background: var(--bg-card);
  padding: 25px;
  border-radius: 12px;
  border: 1px solid var(--border);
}
.card-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 20px;
}
.balance {
  font-size: 32px;
  font-weight: 700;
  margin: 10px 0;
}
.trend {
  font-size: 14px;
  padding: 4px 8px;
  border-radius: 4px;
}
.trend.up {
  background: rgba(14, 203, 129, 0.15);
  color: var(--green);
}
.trend.down {
  background: rgba(246, 70, 93, 0.15);
  color: var(--red);
}

/* --- Table Styles --- */
.crypto-table {
  width: 100%;
  border-collapse: collapse;
}
.crypto-table th {
  text-align: left;
  color: var(--text-dim);
  padding: 15px;
  font-weight: 500;
  border-bottom: 1px solid var(--border);
}
.crypto-table td {
  padding: 15px;
  border-bottom: 1px solid var(--border);
  font-weight: 500;
}
.crypto-table tr:hover {
  background: #2b3139;
  cursor: pointer;
}
.coin-name {
  display: flex;
  align-items: center;
  gap: 10px;
}
.coin-icon {
  width: 30px;
  height: 30px;
}

/* --- Forms (Trade) --- */
.input-group {
  margin-bottom: 20px;
}
.input-label {
  display: block;
  color: var(--text-dim);
  margin-bottom: 8px;
  font-size: 14px;
}
.input-field {
  width: 100%;
  background: var(--bg-dark);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 12px;
  border-radius: 8px;
  outline: none;
  font-size: 16px;
}
.input-field:focus {
  border-color: var(--primary);
}

/* Mobile Menu Button */
.menu-toggle {
  display: none;
  font-size: 24px;
  color: var(--text);
  cursor: pointer;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 768px) {
  .sidebar {
    left: -250px;
  }
  .sidebar.active {
    left: 0;
  }
  .main-content {
    margin-left: 0;
  }
  .menu-toggle {
    display: block;
  }
  .nav-links {
    display: none;
  }
}