:root{
  --leaf: #2e7d32;       /* deep leaf green */
  --moss: #8bc34a;       /* soft moss green */
  --soil: #8d6e63;       /* earthy brown accent */
  --bg: #ffffff;
  --card-bg: #fbfff9;    /* very light greenish white */
  --text: #09301a;       /* dark greenish text */
  --muted: #4f5b50;
  --border: #e6efe6;
  --shadow: rgba(46,125,50,0.1);
  --focus: rgba(139,195,74,0.4);
}

*{box-sizing:border-box}
body{
  font-family: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', Arial;
  background:var(--bg);
  color:var(--text);
  padding:22px;
  line-height:1.6;
  margin:0;
}
.container{
  /* max-width:1100px; */
  margin:auto;
  background:var(--card-bg);
  padding:28px;
  border-radius:16px;
  box-shadow:0 8px 20px var(--shadow);
  border:1px solid var(--border);
}
h1{
  text-align:center;
  margin-bottom:18px;
  font-size:1.8rem;
  color: var(--leaf);
}
.subtitle {
  text-align:center;
  color: var(--muted);
  margin-top: -10px;
  margin-bottom: 24px;
  font-size: 1rem;
}
.flex-row{display:flex;gap:24px;flex-wrap:wrap}
.flex-col{flex:1;min-width:300px}
.slider-group{
  margin-bottom:20px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 12px;
  box-shadow: 0 2px 8px var(--shadow);
}
.slider-label{display:flex;justify-content:space-between;align-items:center;font-weight:600;margin-bottom:8px}
label{font-size:0.95rem; font-weight: 500;}
.slider-group input[type=range]{
  width:100%;
  -webkit-appearance:none;
  height:10px;
  padding: 0px;
  border-radius:999px;
  background:#ecf7ea;
  outline:none;
  transition: all 0.2s ease;
}
.slider-group input[type=range]:hover {
  background: #e0f0dd;
}
.slider-group input[type=range]::-webkit-slider-thumb{ 
  -webkit-appearance: none; 
  width:22px;
  height:22px;
  border-radius:50%;
  background:var(--leaf);
  border:3px solid rgba(255,255,255,0.9);
  box-shadow:0 2px 6px rgba(46,125,50,0.3);
  cursor: pointer;
  transition: all 0.2s ease;
}
.slider-group input[type=range]::-webkit-slider-thumb:hover{ 
  transform: scale(1.1);
  background: #235a27;
}
.slider-group input[type=range]::-moz-range-thumb{ 
  width:22px;
  height:22px;
  border-radius:50%;
  background:var(--leaf);
  border:3px solid rgba(255,255,255,0.9);
  box-shadow:0 2px 6px rgba(46,125,50,0.3);
  cursor: pointer;
  transition: all 0.2s ease;
}
.slider-group input[type=range]::-moz-range-thumb:hover{ 
  transform: scale(1.1);
  background: #235a27;
}
input[type=number]{
  width:130px;
  padding:10px 12px;
  border-radius:8px;
  border:1px solid var(--border);
  background:rgba(46,125,50,0.06);
  font-weight:600;
  color:var(--text);
  text-align: right;
  transition: all 0.2s ease;
}
input[type=number]:focus {
  outline: 2px solid var(--focus);
  background: rgba(46,125,50,0.1);
}
.input-container {
  position: relative;
  display: inline-block;
}
.input-container::before {
  content: '₹';
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  font-weight: 600;
}
.currency-input {
  padding-left: 28px !important;
}

.output{
  margin-top:20px;
  padding:20px;
  border-radius:12px;
  background:linear-gradient(180deg, rgba(240,255,240,0.7), rgba(255,255,255,0.7));
  box-shadow:inset 0 1px 3px rgba(0,0,0,0.05), 0 4px 12px var(--shadow);
  border: 1px solid rgba(139,195,74,0.3);
}
.output p{
  font-size:16px;
  margin:10px 0;
  color:var(--muted);
  display: flex;
  justify-content: space-between;
  max-width: 400px;
  margin-left: inherit;
  margin-right: auto;
}
.output span{
  font-weight:800;
  color:var(--text);
}
.total-payment {
  font-size: 18px !important;
  border-top: 2px solid var(--border);
  padding-top: 12px;
  margin-top: 16px !important;
  color: var(--leaf) !important;
}
.total-payment span {
  font-size: 20px;
}

.accordion{margin-top:24px}
.accordion-item{
  border-radius:10px;
  margin-bottom:12px;
  overflow:hidden;
  border:1px solid var(--border);
  background:#fff;
  transition:all 0.3s ease;
  box-shadow: 0 2px 6px var(--shadow);
}
.accordion-item:hover {
  box-shadow: 0 4px 10px var(--shadow);
}
.accordion-header{
  padding:16px 20px;
  background: linear-gradient(to right, rgba(139,195,74,0.1), transparent);
  display:flex;
  justify-content:space-between;
  align-items:center;
  cursor:pointer;
  font-weight:700;
  color:var(--text);
  user-select:none;
  transition: all 0.2s ease;
}
.accordion-header:hover {
  background: linear-gradient(to right, rgba(139,195,74,0.15), transparent);
}
.accordion-header:focus{
  outline:3px solid var(--focus);
}
.accordion-header::after{
  content: '▼';
  font-size:0.9rem;
  transition:transform 0.3s ease;
  color: var(--leaf);
}
.accordion-header[aria-expanded="true"]::after{
  transform:rotate(-180deg);
}
.accordion-content{
  display:none;
  padding:16px 20px;
  background:#fff;
  animation:fadeIn 0.3s ease;
  overflow-x: auto;
}
@keyframes fadeIn{from{opacity:0} to{opacity:1}}
table{
  width:100%;
  border-collapse:collapse;
  font-size:14px;
  min-width: 500px;
}
th,td{
  border:1px solid var(--border);
  padding:8px 10px;
  text-align:center;
}
th{
  background:rgba(139,195,74,0.1);
  color: var(--text);
  font-weight: 600;
}
tr:nth-child(even) {
  background-color: rgba(139,195,74,0.05);
}
tr:hover {
  background-color: rgba(139,195,74,0.08);
}

@media(max-width:768px){
  .flex-row{flex-direction:column}
  body {padding: 12px;}
  .container {padding: 20px;}
  .output p {flex-direction: column; text-align: center; margin-left: inherit !important; gap: 4px;}
}

.small-note{
  font-size:13px;
  color:var(--muted);
  margin-top:12px;
  text-align: center;
  font-style: italic;
}
kbd {
  background-color: #f7f7f7;
  border: 1px solid #ccc;
  border-radius: 3px;
  box-shadow: 0 1px 0 rgba(0,0,0,0.2);
  color: #333;
  display: inline-block;
  font-family: Arial, sans-serif;
  font-size: 0.85em;
  font-weight: 600;
  line-height: 1;
  padding: 2px 4px;
  white-space: nowrap;
}
.chart-container {
  position: relative;
  display: flex;
  justify-content: center; /* horizontal center */
  align-items: center;     /* vertical center */
  height: 300px;
  width: 100%;
}
.visualization-section {
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.section-title {
  color: var(--leaf);
  margin-bottom: 16px;
  text-align: center;
}
.reset-btn {
  display: block;
  margin: 24px auto 10px;
  padding: 10px 24px;
  background: var(--leaf);
  color: white;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(46,125,50,0.3);
}
.reset-btn:hover {
  background: #235a27;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(46,125,50,0.4);
}
.reset-btn:active {
  transform: translateY(0);
}