/* ─── Variables ─────────────────────────────────────────────── */
:root {
  --green:        #3d6b4f;
  --green-light:  #52b788;
  --green-pale:   #d8f3dc;
  --brown:        #7c5c3d;
  --bg:           #edf0f5;
  --sidebar-bg:   #ffffff;
  --text:         #1a1a2e;
  --text-2:       #6b7280;
  --text-3:       #9ca3af;
  --border:       #e5e7eb;
  --shadow-node:  0 4px 18px rgba(0,0,0,0.13), 0 0 0 1px rgba(0,0,0,0.04);
  --shadow-hover: 0 8px 32px rgba(61,107,79,0.28), 0 0 0 2.5px #52b788;
  --shadow-modal: 0 24px 64px rgba(0,0,0,0.18);
  --sidebar-w:    296px;
  --node-size:    96px;
  --r:            6px;
  --r-lg:         18px;
}

/* ─── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; overflow: hidden; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

/* ─── Layout ─────────────────────────────────────────────────── */
.app-layout { display: flex; height: 100vh; }

/* ─── Sidebar ────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--sidebar-bg);
  box-shadow: 2px 0 16px rgba(0,0,0,0.07);
  z-index: 10;
}
.sidebar-inner { display: flex; flex-direction: column; height: 100%; }

.sidebar-header {
  padding: 18px 20px 14px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}
.app-logo {
  display: flex; align-items: center; gap: 9px;
  font-size: 15px; font-weight: 700; letter-spacing: -0.2px;
  color: var(--text);
}
.match-count {
  display: flex; flex-direction: column; align-items: flex-end;
}
#match-count {
  font-size: 24px; font-weight: 800; line-height: 1;
  color: var(--green);
}
.match-label {
  font-size: 10px; text-transform: uppercase; letter-spacing: 0.6px;
  color: var(--text-3);
}

.filters-scroll {
  flex: 1; overflow-y: auto; padding: 4px 0;
  scrollbar-width: thin; scrollbar-color: var(--border) transparent;
}
.filters-scroll::-webkit-scrollbar { width: 4px; }
.filters-scroll::-webkit-scrollbar-track { background: transparent; }
.filters-scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.filter-section {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.filter-section:last-child { border-bottom: none; }

.section-label {
  font-size: 10px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.9px; color: var(--text-3); margin-bottom: 14px;
}

/* ─── Range Filter Groups ────────────────────────────────────── */
.filter-group { margin-bottom: 18px; }
.filter-group:last-child { margin-bottom: 0; }

.filter-label-row {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 10px;
}
.filter-label-row > span:first-child {
  font-size: 13px; font-weight: 500; color: var(--text);
}
.filter-pill {
  font-size: 11px; font-weight: 600; color: var(--green);
  background: var(--green-pale); padding: 2px 9px; border-radius: 20px;
}

/* Dual-range slider */
.slider-wrap {
  position: relative; height: 22px; user-select: none;
}
.slider-track {
  position: absolute; top: 50%; transform: translateY(-50%);
  left: 0; right: 0; height: 4px;
  background: #e5e7eb; border-radius: 2px; pointer-events: none;
}
.slider-fill {
  position: absolute; height: 100%;
  background: var(--green); border-radius: 2px;
}
.slider-wrap input[type="range"] {
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
  -webkit-appearance: none; appearance: none;
  background: transparent; pointer-events: none; outline: none;
}
.slider-wrap input[type="range"].r-min { z-index: 2; }
.slider-wrap input[type="range"].r-max { z-index: 3; }
.slider-wrap input[type="range"]:focus { z-index: 4; }

.slider-wrap input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 18px; height: 18px; border-radius: 50%;
  background: #fff; border: 2.5px solid var(--green);
  cursor: pointer; pointer-events: all;
  box-shadow: 0 1px 4px rgba(0,0,0,0.18);
  transition: box-shadow 0.15s, border-color 0.15s;
}
.slider-wrap input[type="range"]::-webkit-slider-thumb:hover,
.slider-wrap input[type="range"]:active::-webkit-slider-thumb {
  box-shadow: 0 0 0 6px rgba(61,107,79,0.14);
}
.slider-wrap input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px; border-radius: 50%;
  background: #fff; border: 2.5px solid var(--green);
  cursor: pointer; pointer-events: all;
  box-shadow: 0 1px 4px rgba(0,0,0,0.18);
}
.slider-wrap input[type="range"]::-webkit-slider-runnable-track,
.slider-wrap input[type="range"]::-moz-range-track {
  background: transparent; height: 4px;
}

/* ─── Feature Toggles ────────────────────────────────────────── */
.toggle-list { display: flex; flex-direction: column; gap: 2px; }
.toggle-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 10px; border-radius: var(--r); cursor: pointer;
  transition: background 0.15s;
}
.toggle-row:hover { background: #f6f8fa; }
.toggle-row > span { font-size: 13px; color: var(--text); }
.toggle-row input[type="checkbox"] { display: none; }
.toggle-knob {
  position: relative; width: 36px; height: 20px;
  background: #dde1e8; border-radius: 10px;
  transition: background 0.2s; flex-shrink: 0;
}
.toggle-knob::after {
  content: ''; position: absolute;
  top: 2px; left: 2px; width: 16px; height: 16px;
  background: #fff; border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0,0,0,0.22);
  transition: transform 0.2s;
}
.toggle-row input:checked ~ .toggle-knob { background: var(--green-light); }
.toggle-row input:checked ~ .toggle-knob::after { transform: translateX(16px); }

/* ─── Sidebar Footer ─────────────────────────────────────────── */
.sidebar-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}
.btn-clear {
  width: 100%; padding: 9px;
  border: 1.5px solid var(--border); border-radius: var(--r);
  background: transparent; font-size: 13px; font-weight: 500;
  color: var(--text-2); cursor: pointer;
  transition: all 0.15s;
}
.btn-clear:hover {
  border-color: var(--green); color: var(--green);
  background: var(--green-pale);
}

/* ─── Canvas ─────────────────────────────────────────────────── */
.canvas-wrap { flex: 1; overflow: hidden; position: relative; }
.canvas {
  position: absolute; inset: 0;
  overflow: hidden;
  background-color: #edf0f5;
  background-image: radial-gradient(circle, #c6cad4 1.2px, transparent 1.2px);
  background-size: 26px 26px;
  cursor: grab;
}
.canvas:active { cursor: grabbing; }

/* Loading */
.loading-state {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 12px; color: var(--text-2); font-size: 14px;
}
.loading-state.hidden { display: none; }
.spinner {
  width: 30px; height: 30px;
  border: 3px solid var(--border);
  border-top-color: var(--green);
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Home Nodes ─────────────────────────────────────────────── */
.home-node {
  position: absolute; top: 0; left: 0;
  width: var(--node-size); height: var(--node-size);
  cursor: pointer !important;
  will-change: transform, opacity;
  /* transform is managed by JS */
}

.node-circle {
  width: 100%; height: 100%;
  border-radius: 50%; overflow: hidden;
  border: 3px solid #fff;
  box-shadow: var(--shadow-node);
  background: #d1d5db;
  transition: box-shadow 0.18s;
}
.home-node:hover .node-circle {
  box-shadow: var(--shadow-hover);
}
.node-circle img {
  width: 100%; height: 100%;
  object-fit: cover; display: block;
  border-radius: 50%;
  transition: filter 0.3s;
}
.home-node.inactive .node-circle img {
  filter: grayscale(1) brightness(1.05);
}

/* Source dot */
.node-source-dot {
  position: absolute;
  bottom: 5px; right: 5px;
  width: 11px; height: 11px;
  border-radius: 50%;
  border: 2px solid #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.node-source-dot.elog { background: var(--green); }
.node-source-dot.bm   { background: var(--brown); }

/* Tooltip */
.node-tip {
  position: absolute;
  bottom: calc(100% + 7px);
  left: 50%; transform: translateX(-50%);
  background: rgba(20,20,36,0.88);
  color: #fff; font-size: 11px; font-weight: 500;
  padding: 5px 10px; border-radius: 20px;
  white-space: nowrap; pointer-events: none;
  opacity: 0; transition: opacity 0.15s;
  backdrop-filter: blur(4px);
}
.home-node:hover .node-tip { opacity: 1; }

/* ─── Modal ──────────────────────────────────────────────────── */
.modal {
  position: fixed; inset: 0; z-index: 100;
  display: flex; align-items: center; justify-content: center;
}
.modal.hidden { display: none; }

.modal-backdrop {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.48);
  backdrop-filter: blur(5px);
}

.modal-card {
  position: relative; z-index: 1;
  background: #fff; border-radius: var(--r-lg);
  width: min(520px, 92vw); max-height: 88vh;
  overflow: hidden; display: flex; flex-direction: column;
  box-shadow: var(--shadow-modal);
  animation: popIn 0.2s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes popIn {
  from { opacity: 0; transform: scale(0.92) translateY(12px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-close {
  position: absolute; top: 12px; right: 12px; z-index: 2;
  background: rgba(0,0,0,0.42); color: #fff;
  border: none; width: 30px; height: 30px; border-radius: 50%;
  cursor: pointer; font-size: 12px; line-height: 1;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.15s;
}
.modal-close:hover { background: rgba(0,0,0,0.68); }

.modal-hero {
  position: relative; height: 210px; flex-shrink: 0;
  background: #e5e7eb; overflow: hidden;
}
.modal-hero img {
  width: 100%; height: 100%;
  object-fit: cover; display: block;
}
.modal-source-badge {
  position: absolute; bottom: 12px; left: 12px;
  background: rgba(0,0,0,0.5);
  color: #fff; font-size: 10px; font-weight: 700;
  padding: 3px 10px; border-radius: 20px;
  text-transform: uppercase; letter-spacing: 0.5px;
  backdrop-filter: blur(4px);
}

.modal-body {
  padding: 20px 22px 22px;
  overflow-y: auto;
  scrollbar-width: thin; scrollbar-color: var(--border) transparent;
}
.modal-body h2 {
  font-size: 21px; font-weight: 800;
  margin-bottom: 14px; color: var(--text);
}

.modal-specs {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 8px; margin-bottom: 14px;
}
.spec-card {
  background: #f6f8fa; border-radius: var(--r);
  padding: 9px 11px;
}
.spec-card .sc-label {
  font-size: 10px; text-transform: uppercase;
  letter-spacing: 0.5px; color: var(--text-3);
  margin-bottom: 2px;
}
.spec-card .sc-val {
  font-size: 15px; font-weight: 700; color: var(--text);
}
.spec-card .sc-val small {
  font-size: 10px; font-weight: 500; color: var(--text-2);
}

.modal-features {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-bottom: 18px; min-height: 28px;
}
.feat-badge {
  font-size: 11px; font-weight: 600;
  padding: 4px 10px; border-radius: 20px;
  background: var(--green-pale); color: var(--green);
}
.no-features {
  font-size: 12px; color: var(--text-3);
  align-self: center;
}

.modal-cta {
  display: flex; align-items: center; justify-content: center; gap: 6px;
  background: var(--green); color: #fff;
  padding: 12px; border-radius: var(--r);
  text-decoration: none; font-size: 14px; font-weight: 600;
  transition: background 0.15s; letter-spacing: 0.1px;
}
.modal-cta:hover { background: #2d5a3e; }

/* ─── Responsive ─────────────────────────────────────────────── */
@media (max-width: 600px) {
  :root { --sidebar-w: 100vw; }
  .app-layout { flex-direction: column; }
  .sidebar { width: 100%; max-height: 44vh; overflow: hidden; }
  .canvas-wrap { min-height: 56vh; }
  .modal-specs { grid-template-columns: repeat(2, 1fr); }
}