/* Phase 7 — positioning and stacking */

body {
  margin: 0;
  padding: 1.5rem 1.5rem 5rem;
  background: #eef2f0;
  color: #1d2923;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1rem;
}

.page {
  width: 92%;
  max-width: 60rem;
  margin: 0 auto;
}

nav {
  margin: 0 0 1.5rem;
  padding: 0.75rem;
  background: #d9e5de;
  display: block;
  border: 1px solid #a8b9ae;
  border-radius: 0.75rem;
  text-align: center;
}

nav a {
  margin: 0 0.25rem;
  padding: 0.65rem 0.8rem;
  background: #ffffff;
  display: inline-block;
  border: 1px solid #879b8e;
  border-radius: 0.5rem;
  color: #173d29;
  font-weight: 700;
}

header {
  margin: 0 0 1.5rem;
  padding: 2rem;
  background: #173d29;
  border: 2px solid #0c2718;
  border-radius: 1rem;
  color: #ffffff;
  text-align: center;
}

header h1 {
  margin: 0 0 0.5rem;
}

header h2 {
  margin: 0;
  color: #d8e8dc;
  font-size: 1rem;
  font-weight: 400;
}

.panel,
.panel-alt {
  margin: 0 0 1.25rem;
  padding: 1.25rem;
  background: #ffffff;
  border: 1px solid #c4d0c8;
  border-radius: 0.875rem;
}

.panel-alt {
  background: #e1ebe5;
}

.panel h3,
.panel-alt h3 {
  margin: 0 0 0.5rem;
  color: #173d29;
}

.panel h4,
.panel-alt h4 {
  margin: 0 0 0.5rem;
}

.panel h6,
.panel-alt h6 {
  margin: 0 0 0.75rem;
  color: #4c5d53;
  font-size: 0.9rem;
  font-weight: 400;
}

.panel-copy {
  margin: 0 0 0.75rem;
  color: #4c5d53;
  font-size: 0.9rem;
  font-weight: 400;
}

.flow-row {
  min-height: 7rem;
  padding: 1rem;
  background: #f7f9f7;
  border: 1px solid #c4d0c8;
}

.flow-box {
  width: 28%;
  min-height: 3rem;
  margin: 0 0.25rem 0 0;
  padding: 0.75rem;
  background: #d9e5de;
  display: inline-block;
  box-sizing: border-box;
  border: 2px solid #879b8e;
  text-align: center;
}

.static-box {
  position: static;
  top: 2rem;
}

.relative-box {
  position: relative;
  top: 1rem;
  left: 1rem;
  background: #f5d8bd;
  border: 2px solid #a9561b;
}

.absolute-stage {
  position: relative;
  min-height: 15rem;
  padding: 1rem;
  background: #f7f9f7;
  border: 2px dashed #879b8e;
}

.absolute-card {
  width: 70%;
  max-width: 28rem;
  min-height: 8rem;
  margin: 2rem auto 0;
  padding: 1.25rem;
  background: #ffffff;
  position: relative;
  border: 1px solid #a8b9ae;
  border-radius: 0.75rem;
}

.absolute-badge {
  padding: 0.45rem 0.7rem;
  background: #9a4f18;
  position: absolute;
  top: -0.75rem;
  right: -0.75rem;
  border: 1px solid #6e330d;
  border-radius: 999px;
  color: #ffffff;
  font-weight: 700;
}

.corner-marker {
  padding: 0.4rem 0.6rem;
  background: #173d29;
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  color: #ffffff;
}

.scroll-stage {
  height: 18rem;
  overflow: auto;
  background: #f7f9f7;
  border: 2px solid #879b8e;
}

.sticky-label {
  margin: 0;
  padding: 0.8rem 1rem;
  background: #173d29;
  position: sticky;
  top: 0;
  z-index: 10;
  color: #ffffff;
}

.scroll-item {
  margin: 0.75rem;
  padding: 1rem;
  min-height: 4rem;
  background: #ffffff;
  border: 1px solid #c4d0c8;
}

.fixed-note {
  max-width: 13rem;
  padding: 0.75rem 1rem;
  background: #9a4f18;
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 20;
  border: 2px solid #ffffff;
  border-radius: 0.75rem;
  color: #ffffff;
  font-weight: 700;
}

.layer-stage {
  min-height: 18rem;
  position: relative;
  background: #f7f9f7;
  border: 2px dashed #879b8e;
}

.layer {
  width: 45%;
  min-height: 7rem;
  padding: 1rem;
  position: absolute;
  box-sizing: border-box;
  border: 2px solid #173d29;
  border-radius: 0.75rem;
  color: #ffffff;
  font-weight: 700;
}

.layer-one {
  top: 2rem;
  left: 8%;
  background: #2f6f4e;
  z-index: 1;
}

.layer-two {
  top: 5rem;
  left: 28%;
  background: #9a4f18;
  z-index: 3;
}

.layer-three {
  top: 8rem;
  left: 48%;
  background: #394f78;
  z-index: 2;
}

.context-stage {
  min-height: 12rem;
  position: relative;
}

.context-low {
  width: 55%;
  min-height: 7rem;
  padding: 1rem;
  background: #d9e5de;
  position: relative;
  z-index: 1;
  border: 2px solid #2f6f4e;
}

.context-child {
  padding: 1rem;
  background: #173d29;
  position: absolute;
  right: -2rem;
  bottom: -2rem;
  z-index: 100;
  color: #ffffff;
}

.context-high {
  width: 38%;
  min-height: 6rem;
  padding: 1rem;
  background: #f5d8bd;
  position: absolute;
  right: 4%;
  top: 3rem;
  z-index: 2;
  border: 2px solid #9a4f18;
}

ol {
  margin: 0;
  padding: 0 0 0 1.5rem;
}

li {
  margin: 0 0 0.5rem;
}