:root{
  --green-700:#2f6b3b;
  --green-500:#3f8f4f;
  --green-100:#e7f4ea;
  --orange-600:#f27a1a;
  --orange-100:#fff1e6;
  --ink:#1a1a1a;
  --muted:#667085;
  --bg:#fffefb;
  --border:#e6e6e6;
  --radius:14px;
  --shadow:0 6px 18px rgba(0,0,0,.08);
  --focus:0 0 0 3px rgba(242,122,26,.35);
  font-synthesis-weight:none;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font:16px/1.45 system-ui,-apple-system,Segoe UI,Roboto,Inter,Ubuntu,'Helvetica Neue',Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
}

.wrap{max-width:1100px;margin:0 auto;padding:0 16px}
.tiny{max-width:900px}

.site-header{
  background:linear-gradient(135deg,var(--green-700),var(--green-500));
  color:#fff;
  padding:20px 0 28px;
  box-shadow:var(--shadow);
}
.brand{display:flex;align-items:center;gap:10px}
.logo{font-size:28px}
.title{font-size:24px;font-weight:800;letter-spacing:.2px}
.title span{color:#fffcde}
.tagline{margin:6px 0 0;color:#eef8f0}

.section-title{
  margin:26px 0 14px;
  font-size:20px;
  color:var(--green-700);
}

.panel{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:16px;
  margin:18px 0;
  box-shadow:var(--shadow);
}

.grid{display:grid;gap:16px}
@media(min-width:900px){.grid{grid-template-columns:1.2fr 1fr}}

.map{height:340px;border-radius:12px;border:1px solid var(--border);overflow:hidden}
.helptext{color:var(--muted);font-size:14px;margin-top:8px}

.controls label{display:block;margin:8px 0;color:var(--ink);font-weight:600}
.controls input{
  width:100%;
  padding:10px 12px;
  border:1px solid var(--border);
  border-radius:10px;
  font-size:15px;
}
.controls input:focus{outline:none;box-shadow:var(--focus);border-color:var(--orange-600)}
.controls input:disabled{
  background-color:#f5f5f5;
  color:#999;
  cursor:not-allowed;
  opacity:0.7;
}

.btn-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}
.distribute{justify-content:space-between}

.btn{
  appearance:none;border:0;border-radius:12px;
  padding:10px 14px;font-weight:700;cursor:pointer;
  transition:.15s transform ease,.15s box-shadow ease;
}
.btn:focus{outline:none;box-shadow:var(--focus)}
.btn:active{transform:translateY(1px)}

.btn-primary{background:var(--orange-600);color:#fff}
.btn-secondary{background:var(--green-500);color:#fff}
.btn-accent{background:var(--green-700);color:#fff}
.btn-outline{background:#fff;border:2px solid var(--orange-600);color:var(--orange-600)}
.btn-outline:disabled,
.btn-outline.disabled{background:#f5f5f5;border:2px solid #ccc;color:#999;cursor:not-allowed}

#status{margin-top:8px;color:var(--muted);font-size:14px}

.cards{display:grid;gap:16px}
@media(min-width:900px){.cards{grid-template-columns:1fr 1fr 1fr 1fr}}

.card{
  border:1px solid var(--border);
  border-radius:12px;
  padding:16px;
  background:#fff;
}
.card-kicker{font-weight:800;color:var(--green-700);font-size:13px;margin-bottom:8px;text-transform:uppercase;letter-spacing:.6px}
.big-number{font-size:36px;font-weight:900;color:var(--ink)}

.astronomical-section{
  margin-bottom: 16px;
}
.direct-sun-section{
  margin-bottom: 8px;
}
.astronomical-label{
  color:var(--green-700);
  font-weight:800;
  font-size:13px;
  text-transform:uppercase;
  letter-spacing:.6px;
  margin-bottom: 6px;
}
.direct-sun-label{
  color:var(--green-700);
  font-weight:800;
  font-size:13px;
  text-transform:uppercase;
  letter-spacing:.6px;
  margin-bottom: 6px;
}
.subtle{color:var(--muted);font-size:13px;margin-top:4px}
.meta{margin:4px 0}
.meta-description{
  margin: 8px 0;
  padding: 8px 12px;
  background: var(--green-100);
  border-radius: 8px;
  font-size: 13px;
  line-height: 1.4;
  color: var(--muted);
  text-align: justify;
}
.meta-description a{
  color: var(--green-700);
  text-decoration: none;
  font-weight: 600;
}
.meta-description a:hover{
  text-decoration: underline;
}

.preview{
  width:100%;height:200px;object-fit:cover;border-radius:10px;border:1px solid var(--border);
  transition: opacity 0.3s ease;
}

.preview.loading {
  opacity: 0.7;
  filter: grayscale(0.3);
}

.mesh-status{
  margin: 8px 0;
  padding: 8px 12px;
  background: var(--orange-100);
  border-radius: 8px;
  text-align: center;
}
.mesh-building{
  color: var(--orange-700);
  font-weight: 600;
  font-size: 14px;
}

.trend{height:72px}
.trend svg{display:block;width:100%;height:72px}
.trend .axis{stroke:#c7d9cc;stroke-width:1}
.trend .line{fill:none;stroke:var(--green-700);stroke-width:2.5}
.trend .dot{fill:var(--orange-600)}

.drawer{
  position:fixed;left:0;right:0;bottom:-60vh;height:60vh;background:#fff;
  border-top-left-radius:16px;border-top-right-radius:16px;box-shadow:0 -10px 30px rgba(0,0,0,.15);
  transition:bottom .25s ease;z-index:1000;border-top:3px solid var(--orange-600);
}
.drawer.open{bottom:0}
.drawer-header{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;border-bottom:1px solid var(--border)}
.drawer-tabs{display:flex;gap:8px}
.tab{
  background:var(--orange-100);color:var(--orange-600);
  border:0;border-radius:999px;padding:8px 12px;font-weight:700;cursor:pointer
}
.tab.active{background:var(--orange-600);color:#fff}
.btn-icon{background:#fff;border:1px solid var(--border);border-radius:10px;padding:6px 10px;cursor:pointer}

.drawer-content{padding:14px;overflow:auto;height:calc(60vh - 56px)}
.list{display:grid;gap:10px}
.item{
  border:1px solid var(--border);border-radius:12px;padding:10px;background:var(--green-100)
}
.item h4{margin:0 0 4px}
.item .small{color:var(--muted);font-size:13px}

.site-footer{padding:24px 0;color:var(--muted);text-align:center}

.hidden{display:none}

/* Modal styles */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal.open {
  opacity: 1;
  visibility: visible;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.modal-container {
  position: relative;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  max-width: 95vw;
  max-height: 95vh;
  width: 1200px;
  height: 800px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--green-100);
}

.modal-header h3 {
  margin: 0;
  color: var(--green-700);
  font-size: 18px;
  font-weight: 700;
}

.modal-content {
  flex: 1;
  overflow: hidden;
  position: relative;
}

#modal-3d-content {
  width: 100%;
  height: 100%;
  position: relative;
}

.modal-loading {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: var(--muted);
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--border);
  border-top: 4px solid var(--orange-600);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 16px;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* 3D viewer styles */
#modal-3d-content iframe {
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 0;
  display: block;
}

#modal-3d-content canvas {
  width: 100% !important;
  height: 100% !important;
  display: block;
}

#modal-3d-content #compass {
  position: absolute;
  top: 20px;
  right: 20px;
  z-index: 10;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  padding: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

#modal-3d-content #msg {
  position: absolute;
  top: 20px;
  left: 20px;
  z-index: 10;
  background: rgba(255, 255, 255, 0.9);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 14px;
  color: var(--muted);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* Modal metadata styles */
.modal-meta {
  position: absolute;
  bottom: 20px;
  left: 20px;
  right: 20px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 12px;
  padding: 16px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  backdrop-filter: blur(8px);
  z-index: 10;
  max-height: 200px;
  overflow-y: auto;
}

.modal-meta h4 {
  margin: 0 0 12px;
  color: var(--green-700);
  font-size: 16px;
  font-weight: 700;
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 8px;
}

.meta-item {
  font-size: 14px;
  color: var(--ink);
}

.meta-item strong {
  color: var(--green-700);
  font-weight: 600;
}