:root {
  --primary-color: #4f46e5;
  --primary-hover: #4338ca;
  --bg-color: #f3f4f6;
  --card-bg: #ffffff;
  --text-color: #1f2937;
  --border-color: #e5e7eb;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header Styling */
.top {
  background-color: var(--card-bg);
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.top h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary-color);
}

.logout-btn {
  color: #dc2626;
  text-decoration: none;
  font-weight: 500;
  padding: 0.4rem 0.8rem;
  border: 1px solid #fee2e2;
  border-radius: 6px;
  background-color: #fef2f2;
  transition: all 0.2s ease;
}

.logout-btn:hover {
  background-color: #fee2e2;
}

/* Responsive Tabs Section */
.tabs-container {
  background-color: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
}

.tabs {
  display: flex;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  overflow-x: auto; /* Mobile par horizontal scroll allow karega */
  white-space: nowrap;
  -webkit-overflow-scrolling: touch;
}

.tabs::-webkit-scrollbar {
  height: 4px;
}

.tabs::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 4px;
}

.tabs button {
  background: none;
  border: none;
  padding: 0.6rem 1.2rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: #6b7280;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
  flex-shrink: 0; /* Tabs ko mobile screen par squish hone se rokega */
}

.tabs button:hover {
  background-color: #f3f4f6;
  color: var(--text-color);
}

.tabs button.active {
  background-color: var(--primary-color);
  color: #ffffff;
}

/* Content Area */
#content {
  padding: 1.5rem;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  flex-grow: 1;
}

/* Login Page Styling */
body.login {
  justify-content: center;
  align-items: center;
  padding: 1rem;
}

.card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  width: 100%;
  max-width: 380px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.card h2 {
  text-align: center;
  margin-bottom: 0.5rem;
  color: var(--primary-color);
  font-size: 1.5rem;
}

.card input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s;
}

.card input:focus {
  border-color: var(--primary-color);
}

.card button {
  width: 100%;
  padding: 0.75rem;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s;
}

.card button:hover {
  background-color: var(--primary-hover);
}

.error-msg {
  color: #dc2626;
  background-color: #fef2f2;
  border: 1px solid #fee2e2;
  padding: 0.5rem;
  border-radius: 6px;
  font-size: 0.875rem;
  text-align: center;
}