:root {
  --primary: #FF6B6B; /* Soft Red/Pink */
  --secondary: #4ECDC4; /* Fresh Teal */
  --accent: #FFD166; /* Warm Yellow */
  --dark: #2C3E50;
  --text: #333333;
  --text-light: #7f8c8d;
  --light: #F7F9FC;
  --white: #FFFFFF;
  --border: #E0E0E0;
  --success: #27ae60;
  --shadow: 0 4px 12px rgba(0,0,0,0.08);
  --radius: 12px;
}

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

body {
  font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--light);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Navbar */
.navbar {
  background-color: var(--white);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.5px;
}

.nav-links button {
  background: none;
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 0.95rem;
  margin-left: 1rem;
  color: var(--dark);
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  transition: all 0.2s;
}

.nav-links button:hover {
  background-color: var(--light);
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

.center-content {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 80vh;
  flex-direction: column;
}

/* Dashboard Grid */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 900px) {
  .dashboard-grid {
    grid-template-columns: 350px 1fr; /* Fixed sidebar for forms/lists */
    align-items: start;
  }
}

/* Cards */
.card {
  background: var(--white);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
  transition: transform 0.2s;
}

.card h3 {
  margin-bottom: 1.5rem;
  font-size: 1.25rem;
  color: var(--dark);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Forms */
.auth-box {
  background: white;
  padding: 2.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  width: 100%;
  max-width: 420px;
}

.auth-box h2 {
  margin-bottom: 2rem;
  text-align: center;
  color: var(--dark);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--dark);
}

.form-group input, 
.form-group select, 
.form-group textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.2s;
  font-family: inherit;
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.1);
}

/* Buttons */
.btn-block {
  width: 100%;
  padding: 0.9rem;
  background-color: var(--primary);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  margin-top: 1rem;
  transition: background-color 0.2s;
}

.btn-block:hover {
  background-color: #ff5252;
}

.btn-small {
  background: var(--light);
  color: var(--dark);
  border: 1px solid var(--border);
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-small:hover {
  background: #e9ecef;
}

/* Status Tags */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
}

.status-open { color: #00b894; background: #e0f9f4; }
.status-matched { color: #0984e3; background: #e1ecf4; }
.status-pending { color: #e67e22; background: #fef5e7; }

/* Lists & Items */
.order-item, .bid-item {
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 0.8rem;
  background: var(--white);
}

.order-item:last-child {
  margin-bottom: 0;
}

/* Utilities */
.hidden { display: none !important; }
.toggle-auth { margin-top: 1.5rem; text-align: center; font-size: 0.9rem; color: var(--text-light); }
.toggle-auth a { color: var(--primary); cursor: pointer; text-decoration: none; font-weight: 600; }
.toggle-auth a:hover { text-decoration: underline; }

/* Modal specific overrides */
#brokerModal .auth-box, #bidModal .auth-box {
  animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}