/* ─── Reset & Base ───────────────────────────────────────────────── */
* { margin:0; padding:0; box-sizing:border-box; }
body {
  font-family:'Poppins',sans-serif;
  background:#343444; color:#fff; line-height:1.4;
}
.container { max-width:900px; margin:2rem auto; padding:0 1rem; }

/* ─── Header & Footer ───────────────────────────────────────────── */
.site-header, .site-footer {
  text-align:center; padding:1rem; background:#106552; color:#fff;
}

/* ─── Generic Card ───────────────────────────────────────────────── */
.card {
  background:#fff; color:#333;
  border-radius:8px; padding:1.5rem; margin-bottom:1.5rem;
  box-shadow:0 2px 6px rgba(0,0,0,0.1);
}

/* ─── Hide Utility ───────────────────────────────────────────────── */
.hidden, .hide { display:none !important; }

/* ─── Input Card ───────────────────────────────────────────────── */
.input-card label {
  display:block; margin-top:1rem; margin-bottom:.25rem;
  font-size:.9rem; color:#333;
}
.input-card input {
  width:100%; padding:.5rem; font-size:1rem;
  border:1px solid #ccc; border-radius:4px;
}
.input-card input:focus {
  border-color:#106552; outline:none;
}
.input-card .input-group {
  display:flex; gap:.5rem; margin-top:1rem;
}
.input-card button {
  background:#106552; color:#fff; border:none;
  padding:0 1.5rem; cursor:pointer; border-radius:4px;
  font-size:1rem;
}
.input-card button:hover { background:#0e553f; }

/* ─── Collapsible Headers ───────────────────────────────────────── */
.summary-header, .methodology-header {
  display:flex; justify-content:center; align-items:center;
  gap:.5rem; cursor:pointer;
}
.toggle-icon {
  font-size:1.2rem; transition:transform .2s;
}
.toggle-icon.fa-chevron-up { transform:rotate(180deg); }

/* ─── Metrics Grid ──────────────────────────────────────────────── */
.metrics {
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(140px,1fr));
  gap:1rem; margin-top:1rem;
}

/* ─── Metric Cards ─────────────────────────────────────────────── */
.metric-card {
  background:#fff; color:#333; border-radius:8px;
  padding:1rem; text-align:center;
  box-shadow:0 2px 6px rgba(0,0,0,0.1);
  cursor:pointer;
}
.metric-card .fas {
  font-size:2rem; color:#106552; margin-bottom:.5rem;
}
.metric-value {
  font-size:1.8rem; font-weight:600; margin-bottom:.25rem;
}
.metric-label {
  font-size:.9rem; color:#555;
}
.metric-unit {
  font-size:.8rem; color:#777;
}
.metric-indicator {
  width:0; height:0;
  border-left:8px solid transparent;
  border-right:8px solid transparent;
  border-top:10px solid #106552;
  margin:.5rem auto 0; display:none;
}
.metric-indicator.show { display:block; }

/* ─── Insight Cards ─────────────────────────────────────────────── */
.insight-cards {
  margin-top:1.5rem;
}
.insight-card {
  display:flex; gap:1rem; align-items:flex-start;
  background:#daf1e3; /* light minty green */
  border-left:6px solid #106552;
  border-radius:8px; padding:1rem 1.5rem;
  color:#106552; font-size:1rem;
}
.insight-card .icon {
  font-size:2.5rem; margin-top:4px;
}
.insight-card .content {
  flex:1;
}
.insight-card .highlight {
  font-weight:700; margin-bottom:.5rem;
}
.insight-card .emoji {
  margin:0.75rem 0; font-size:1.1rem;
}
.insight-card .tagline {
  font-style:italic; color:#0e553f;
}

/* ─── Charts ───────────────────────────────────────────────────── */
.chart-card {
  position: relative;
  margin-bottom: 1.5rem;
  padding: 1.5rem; /* keep default top/right/bottom/left padding */
}
.chart-card canvas {
  display: block;
  width: 100%;
  height: 300px !important; /* force the canvas to be 300px tall */
}

/* ─── Methodology Table ───────────────────────────────────────── */
.methodology-table {
  width:100%; border-collapse:collapse; margin-top:1rem;
}
.methodology-table th, .methodology-table td {
  padding:.75rem; border:1px solid #ddd; text-align:center; position:relative;
}
.methodology-table thead {
  background:#106552; color:#fff;
}

/* Sub-group & details */
.subgroup, .subdetail { background:#f9f9f9; }
.subgroup:hover { background:#eefaf6; }

/* Nested sub-tables */
.sub-method-table {
  width:100%; border-collapse:collapse; margin:.5rem 0;
}
.sub-method-table th, .sub-method-table td {
  padding:8px 12px; border:1px solid #ccc; background:#fff; color:#333;
}
.sub-method-table th { background:#106552; color:#fff; }

/* ─── Verified Badge ───────────────────────────────────────────── */
.cert-badge {
  display:flex; justify-content:center; align-items:center;
  gap:.5rem; margin:1rem 0; color:#fff;
}

/* ─── Import-Source Note ───────────────────────────────────────── */
.import-source {
  font-size:0.8em;
  color:#555;
  font-style:italic;
  margin-left:4px;
}

/* ─── Animations ───────────────────────────────────────────────── */
@keyframes fadeIn {
  from { opacity:0; transform:translateY(-5px); }
  to   { opacity:1; transform:translateY(0); }
}
/* ――― Horizontal scroll wrapper (existing) ――― */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* ――― Tighter tables on tablet/phone (≤768px) ――― */
@media (max-width: 768px) {
  .methodology-table th,
  .methodology-table td,
  .sub-method-table th,
  .sub-method-table td {
    padding: 0.4rem 0.6rem;
    font-size: 0.85rem;
  }
  .methodology-table,
  .sub-method-table {
    min-width: 480px;
  }
}

/* ――― Stacked key–value tables on small phones (≤480px) ――― */
@media (max-width: 480px) {
  /* 1) hide the headers */
  .methodology-table thead,
  .sub-method-table thead {
    display: none;
  }

  /* 2) make every row & cell block-level */
  .methodology-table,
  .sub-method-table,
  .methodology-table tbody,
  .sub-method-table tbody,
  .methodology-table tr,
  .sub-method-table tr,
  .methodology-table td,
  .sub-method-table td {
    display: block;
    width: 100%;
  }

  /* 3) style each “row card” */
  .methodology-table tr,
  .sub-method-table tr {
    margin-bottom: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 0.25rem 0;
  }

  /* 4) style each “cell” inside the row */
  .methodology-table td,
  .sub-method-table td {
    padding: 0.5rem 0.75rem;
    border: none;
    border-bottom: 1px solid #eee;
    position: relative;
  }

  /* 5) inject the label before each cell */
  .methodology-table td:nth-child(1):before {
    content: "Metric: ";
    font-weight: 600;
  }
  .methodology-table td:nth-child(2):before {
    content: "Formula: ";
    font-weight: 600;
  }
  .sub-method-table td:nth-child(1):before {
    content: "Stage: ";
    font-weight: 600;
  }
  .sub-method-table td:nth-child(2):before {
    content: "Description: ";
    font-weight: 600;
  }
  .sub-method-table td:nth-child(3):before {
    content: "Value: ";
    font-weight: 600;
  }
}
/* hide by default (we toggle this in your JS) */
.methodology-wrapper.hide {
  display: none;
}

/* group wrapper */
.method-group,
.method-sub {
  border: 1px solid #ddd;
  border-radius: 4px;
  margin-bottom: 0.75rem;
  background: #fff;
  overflow: hidden;
}

/* top‐level groups */
.method-group > summary {
  font-size: 1rem;
  font-weight: 600;
  padding: 0.75rem 1rem;
  cursor: pointer;
  list-style: none;
  position: relative;
}
/* subgroups one level deeper */
.method-sub > summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 1rem;
  background: #f8f8f8;
  cursor: pointer;
  list-style: none;
}

/* formula on right side */
.method-sub .formula {
  font-weight: 600;
  color: #106552;
  white-space: nowrap;
}

/* remove default triangle and use your icon instead */
.method-group summary::-webkit-details-marker,
.method-sub summary::-webkit-details-marker {
  display: none;
}
.method-group summary::after,
.method-sub summary::after {
  content: "\f107";           /* FontAwesome chevron-down */
  font-family: "Font Awesome 5 Free";
  font-weight: 900;
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  transition: transform .2s;
}
.method-group[open] > summary::after,
.method-sub[open] > summary::after {
  transform: translateY(-50%) rotate(-180deg);
}

/* list of stage details */
.method-list {
  margin: 0;
  padding: 0.5rem 1.25rem;
  list-style: none;
}
.method-list li {
  padding: 0.4rem 0;
  border-bottom: 1px solid #eee;
  font-size: 0.9rem;
}
.method-list li:last-child {
  border-bottom: none;
}

/* Responsive tweaks */
@media (max-width: 480px) {
  .method-group > summary,
  .method-sub > summary {
    padding: 0.6rem 0.75rem;
    font-size: 0.95rem;
  }
  .method-list {
    padding: 0.4rem 1rem;
  }
  .method-list li { font-size: 0.85rem; }
}
/* ─── Give top‐level summaries the dark‐green background ─── */
.method-group > summary {
  background-color: #106552;
  color: #fff;
}

/* ─── Your existing scroll wrapper ─── */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* ─── Style the 3-column subdetail table ─── */
.method-list-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 0.5rem 0;
}
.method-list-table thead th {
  text-align: left;
  font-weight: 600;
  padding: 0.5rem 0.75rem;
  border-bottom: 2px solid #ddd;
}
.method-list-table tbody td {
  padding: 0.4rem 0.75rem;
  border-bottom: 1px solid #eee;
}

/* ─── Mobile-compact tweaks (≤480px) ─── */
@media (max-width: 480px) {
  .method-list-table thead {
    display: none;  /* hide headers on tiny screens */
  }
  .method-list-table,
  .method-list-table tbody,
  .method-list-table tr,
  .method-list-table td {
    display: block;
    width: 100%;
  }
  .method-list-table tr {
    margin-bottom: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 0.25rem 0;
  }
  .method-list-table td {
    position: relative;
    padding: 0.5rem 0.75rem;
    border: none;
    border-bottom: 1px solid #eee;
  }
  .method-list-table td:nth-child(1):before {
    content: "Stage: ";
    font-weight: 600;
  }
  .method-list-table td:nth-child(2):before {
    content: "Description: ";
    font-weight: 600;
  }
  .method-list-table td:nth-child(3):before {
    content: "Value: ";
    font-weight: 600;
  }
}
#compareBtn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #106552 0%, #1a8a6e 100%);
  color: #ffffff;
  border: none;
  border-radius: 4px;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  transition: background 0.3s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

#compareBtn i {
  margin-right: 0.5rem;
  font-size: 1.1rem;
}

#compareBtn:hover {
  background: linear-gradient(135deg, #1a8a6e 0%, #106552 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

#compareBtn:active {
  transform: translateY(0);
  box-shadow: 0 3px 6px rgba(0,0,0,0.1);
}

#compareBtn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.agreement {
  display: flex;
  align-items: center;
  justify-content: center;   /* ← add this */
  font-size: 0.9rem;
  color: #333;
  margin: 0.5rem 0 1rem;
}

/* slightly space the box from its label */
.agreement input[type="checkbox"] {
  margin-right: 0.5rem;
  width: 1rem;
  height: 1rem;
}
/* make the label & box inline and centered */
.agreement-label {
  display: inline-flex;
  align-items: center;
  font-size: 0.9rem;
  color: #333;
  margin: 0.5rem 0 1rem;
  cursor: pointer;
}

/* space the checkbox from the text */
.agreement-label input[type="checkbox"] {
  margin-right: 0.5rem;
  width: 1rem;
  height: 1rem;
  flex-shrink: 0;
}