:root {
    --primary-color: #2E5BFF;
    --accent-color: #09274A;
    --text-color: #333333;
    --bg-main: #ffffff;
    --bg-secondary: #fafafa;
    --bg-third: #f5f5f5;
}

body {
    margin: 0;
    font-family: 'Poppins', sans-serif;
    color: var(--text-color);
    background: linear-gradient(135deg, #ffffff 0%, #f0f6ff 50%, #e8fdf1 100%);
}

main {
    max-width: 800px;
    margin: auto;
    padding: 20px;
}

h1 {
    color: var(--primary-color);
}

.intro-text {
    max-width: 600px;
}

.tool {
  background: var(--bg-main, #fff);
  margin-bottom: 20px;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

.input-group {
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  gap: 10px;
}

label {
    display: block;
    margin-bottom: 5px;
}

input, select {
    padding: 8px;
    font-size: 1rem;
    flex: 1;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.input-group label {
  flex: 1;
}

.input-group input, .input-group select {
  padding: 0.5rem;
  flex: 2;
}

.result-box {
  margin-top: 2rem;
}

#resultTable {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

#resultTable th, #resultTable td {
  border: 1px solid #ddd;
  padding: 8px;
  text-align: center;
}

#resultTable th {
  background: var(--bg-secondary, #fafafa);
}

.result-good {
  color: green;
}
.result-warning {
  color: orange;
}
.result-poor {
  color: red;
}

.formula-note {
  font-size: 0.9rem;
  color: #666;
  margin-top: 10px;
}

.tooltip {
  position: relative;
  display: inline-block;
  cursor: help;
  margin-left: 6px;
}

.tooltip svg {
  width: 15px;
  height: 15px;
}

.tooltip .tooltiptext {
  visibility: hidden;
  width: 280px;
  background: #333;
  color: #fff;
  text-align: left;
  border-radius: 6px;
  padding: 8px;
  position: absolute;
  z-index: 1;
  bottom: 130%;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  transition: opacity 0.3s;
  font-size: 0.85em;
  line-height: 1.4em;
}

.tooltip:hover .tooltiptext {
  visibility: visible;
  opacity: 1;
}

.info-section {
  max-width: 800px;
  margin: 2rem auto;
  padding: 1.5rem;
  border-radius: 8px;
  line-height: 1.6;
}

.info-section h2,
.info-section h3 {
  margin-top: 1rem;
  color: #333;
}

.info-section ul,
.info-section ol {
  margin-left: 1.5rem;
}

.info-section code {
  background: rgba(255, 255, 255, 0.35);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
}

.extra-tool {
  margin-top: 1.5rem;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.35);
  backdrop-filter: blur(12px);
  border: 1px solid var(--primary-color);
  box-shadow: 0 6px 20px rgba(46,91,255,0.2);
  transition: all 0.25s ease;
  border-radius: 6px;
}

.extra-tool a {
  color: var(--primary-color);
  text-decoration: none;
}

.extra-tool a:hover {
  text-decoration: underline;
}

h2, h3 {
    color: #2b3a42;
}

/* BUTTON BAR STYLES */
.extra-actions {
  display: flex;
  gap: 0.5rem;
  margin: 1rem 0;
}

.extra-actions button {
  margin: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  font-size: 0.9rem;
  border: 1px solid var(--primary-color);
  background: var(--bg-secondary);
  color: var(--primary-color);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem; /* tarpas tarp ikonos ir teksto */
  font-family: inherit
}

.extra-actions svg {
  width: 1em; /* automatiškai prisitaiko prie teksto dydžio */
  height: 1em;
}

.extra-actions button:hover {
  margin: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--primary-color);
  color: white;
  cursor: pointer;
}

footer {
    background: var(--accent-color);
    color: white;
    text-align: center;
    padding: 10px;
    margin-top: 30px;
}

@media (max-width: 550px) {
    .unit-input, .scale-inputs {
        flex-direction: column;
    }
}