:root {
  color-scheme: light;
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color: #17212b;
  background: #d6e1ea;
  --border: #91a8ba;
  --border-soft: #c5d2dc;
  --chrome: #a9c4d9;
  --panel-heading: #dbe8f1;
  --surface: #f8fafc;
  --left-pane-width: 25%;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-width: 20rem;
  min-height: 100%;
  margin: 0;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  overflow: hidden;
}

button,
input,
select,
textarea {
  font: inherit;
}

.fitsm-application-frame {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  width: 100vw;
  min-width: 0;
  height: 100vh;
  height: 100dvh;
  background: var(--surface);
}

.application-header {
  position: relative;
  z-index: 10;
  min-width: 0;
  border-bottom: 1px solid #6f91aa;
  background: var(--chrome);
  box-shadow: 0 1px 0 rgb(255 255 255 / 50%) inset;
}

.title-bar {
  display: flex;
  align-items: center;
  min-height: 2.2rem;
  gap: 0.55rem;
  padding: 0.35rem 0.65rem;
  color: #102534;
  background: linear-gradient(#c4d7e5, #abc5d9);
  border-bottom: 1px solid rgb(76 109 132 / 45%);
}

.brand-mark {
  display: inline-grid;
  width: 1.45rem;
  height: 1.45rem;
  place-items: center;
  border-radius: 0.25rem;
  color: #fff;
  background: #1e6a9b;
  font-size: 0.78rem;
  font-weight: 800;
  box-shadow: 0 1px 2px rgb(0 0 0 / 20%);
}

.environment-label {
  margin-left: auto;
  color: #36566d;
  font-size: 0.78rem;
}

.menu-bar {
  display: flex;
  align-items: stretch;
  width: 100%;
  min-width: 0;
  max-width: 100vw;
  min-height: 2rem;
  padding-inline: 0.3rem;
  overflow-x: auto;
  scrollbar-width: thin;
}

.menu {
  position: relative;
  flex: 0 0 auto;
}

.menu > summary {
  display: flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.35rem 0.58rem;
  border: 1px solid transparent;
  color: #102534;
  font-size: 0.82rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.menu > summary::-webkit-details-marker {
  display: none;
}

.menu > summary:hover,
.menu[open] > summary,
.menu-active > summary {
  border-color: #6f91aa;
  background: rgb(255 255 255 / 45%);
}

.menu-panel {
  position: fixed;
  top: 4.4rem;
  left: 0;
  min-width: min(12rem, calc(100vw - 1rem));
  max-width: calc(100vw - 1rem);
  max-height: calc(100dvh - 5rem);
  overflow-y: auto;
  padding: 0.3rem;
  border: 1px solid #6f8798;
  border-radius: 0 0 0.25rem 0.25rem;
  background: #fff;
  box-shadow: 0 0.45rem 1rem rgb(20 42 57 / 22%);
}

.menu-panel a,
.menu-message {
  display: block;
  padding: 0.55rem 0.65rem;
  color: #18384f;
  font-size: 0.83rem;
  text-decoration: none;
}

.menu-panel a:hover,
.menu-panel a:focus-visible,
.menu-panel a[aria-current="page"] {
  outline: none;
  background: #dcecf7;
}

.menu-message {
  width: 16rem;
  color: #526a7a;
  line-height: 1.4;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, var(--left-pane-width)) 0.38rem minmax(0, 1fr);
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  background: var(--border);
}

.workspace-pane {
  min-width: 0;
  min-height: 0;
  border: 2px solid #789db9;
  overflow: auto;
  background: var(--surface);
  box-shadow: 0 0 0 1px rgb(255 255 255 / 65%) inset;
}

.pane-title-bar {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  min-height: 2.2rem;
  padding: 0.4rem 0.7rem;
  border-bottom: 2px solid #789db9;
  background: linear-gradient(#e4f0f7, #bdd6e7);
}

.pane-title-bar h1,
.pane-title-bar h2 {
  margin: 0;
  color: #18384f;
  font-size: 0.84rem;
  font-weight: 650;
}

.pane-content {
  padding: clamp(1rem, 2.5vw, 2rem);
}

.options-pane .pane-content {
  padding: 1rem;
}

.pane-splitter {
  position: relative;
  z-index: 3;
  min-width: 0.38rem;
  cursor: col-resize;
  background: linear-gradient(90deg, #7898af, #c3d3de 48%, #7898af);
  touch-action: none;
}

.pane-splitter::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 2px;
  height: 2.5rem;
  border-radius: 1rem;
  background: #587a92;
  box-shadow: -2px 0 #eaf2f7, 2px 0 #eaf2f7;
  content: "";
  transform: translate(-50%, -50%);
}

.pane-splitter:hover,
.pane-splitter:focus-visible,
.workspace.is-resizing .pane-splitter {
  outline: none;
  background: #3f83ad;
}

.workspace.is-resizing {
  cursor: col-resize;
  user-select: none;
}

.content-heading {
  max-width: 52rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-soft);
}

.eyebrow {
  margin: 0 0 0.45rem;
  color: #356b8e;
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.content-heading h2,
.empty-state h2 {
  margin: 0;
  color: #18384f;
  font-size: clamp(1.55rem, 3vw, 2.35rem);
}

.content-heading p,
.empty-state p,
.pane-explanation,
.placeholder-surface p {
  color: #486071;
  line-height: 1.65;
}

.placeholder-surface {
  min-width: 0;
  max-width: 60rem;
  margin-top: 1.5rem;
  padding: 1.25rem;
  border: 1px solid var(--border-soft);
  border-radius: 0.35rem;
  background: #fff;
  box-shadow: 0 0.35rem 1rem rgb(49 75 92 / 8%);
}

.placeholder-surface h3,
.empty-state h3 {
  margin: 0;
  color: #244b65;
  font-size: 1rem;
}

.placeholder-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 1rem;
}

.placeholder-grid div {
  display: grid;
  gap: 0.35rem;
  min-height: 6.2rem;
  align-content: start;
  padding: 0.85rem;
  border: 1px dashed #9eb2c1;
  background: #f4f8fb;
}

.placeholder-grid span {
  color: #5c7180;
  font-size: 0.85rem;
  line-height: 1.45;
}

.empty-state {
  max-width: 36rem;
  margin: clamp(2rem, 9vh, 7rem) auto;
  padding: 1.5rem;
}

.empty-state.compact {
  margin: 1rem 0;
  padding: 0.5rem;
}

.pane-explanation {
  margin: 0 0 1rem;
  padding: 0 0.2rem 1rem;
  border-bottom: 1px solid var(--border-soft);
  font-size: 0.88rem;
}

.option-list {
  display: grid;
  gap: 0.4rem;
}

.option-list a {
  display: grid;
  gap: 0.2rem;
  padding: 0.7rem;
  border: 1px solid transparent;
  border-radius: 0.25rem;
  color: #18384f;
  text-decoration: none;
}

.option-list a:hover,
.option-list a:focus-visible {
  border-color: #9db3c2;
  outline: none;
  background: #e9f2f8;
}

.option-list a[aria-current="page"] {
  border-color: #6a9bbb;
  background: #d9ebf7;
  box-shadow: 3px 0 #2f7baa inset;
}

.option-list small {
  color: #607685;
  line-height: 1.35;
}

.status-bar {
  display: flex;
  justify-content: space-between;
  min-width: 0;
  gap: 1rem;
  min-height: 1.5rem;
  padding: 0.22rem 0.55rem;
  border-top: 1px solid #6f91aa;
  color: #24485f;
  background: var(--chrome);
  font-size: 0.72rem;
}

@media (max-width: 34rem) {
  body {
    overflow: auto;
  }

  .fitsm-application-frame {
    height: auto;
    min-height: 100dvh;
  }

  .workspace {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: minmax(22rem, 1fr) auto;
    overflow: visible;
  }

  .pane-splitter {
    display: none;
  }

  .options-pane {
    border-top: 1px solid var(--border);
  }

  .placeholder-grid {
    grid-template-columns: 1fr;
  }

  .environment-label {
    display: none;
  }
}

.application-view-menu { width: 34rem; }
.primary-pane .pane-content { padding: 1rem; }
.primary-pane .empty-state { margin: 1rem 0; padding: 0; }
.primary-pane h2 { font-size: 1.35rem; }
.primary-pane .placeholder-grid { grid-template-columns: 1fr; }
.workspace-pane { overflow-wrap: anywhere; }

.application-menu-heading h2 { margin: 0; color: #18384f; }
.preview-label { color: #607685; font-size: 0.8rem; line-height: 1.5; }
.application-menu-divider { margin: 1rem 0; border: 0; border-top: 1px solid #91a8ba; }
.application-actions a { gap: 0.1rem; border-color: var(--border-soft); background: #fff; }
.application-actions small { font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.06em; }
.application-actions span { font-size: 0.9rem; font-weight: 600; }

.application-detail { max-width: 65ch; padding-block: 1rem; line-height: 1.65; }
.application-detail h3 { font-size: 1.1rem; color: #18384f; margin: 1.25rem 0 .35rem; }
.application-detail p { margin: 0 0 1rem; }
.detail-links, .diagram-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem; }
.detail-links { margin: .8rem 0; }
.diagram-caption { color: #526a7a; font-size: .83rem; line-height: 1.5; }
.overview-heading h2 { font-size: 1.3rem; margin: .3rem 0; }
.overview-applications { margin-top: .7rem; }
.overview-applications a { font-size: .86rem; line-height: 1.35; }
.diagram-reset { display: inline-block; margin-bottom: .5rem; }
.diagram-toolbar { padding: .6rem; border: 1px solid var(--border-soft); background: #e7eff5; font-size: .82rem; }
.diagram-toolbar button { padding: .4rem .65rem; background: #fff; border: 1px solid #789db9; border-radius: 3px; color: #18384f; cursor: pointer; }
.diagram-toolbar button:disabled { opacity: .45; cursor: default; }
.diagram-viewport { width: 100%; max-height: 65vh; min-height: 16rem; overflow: auto; border: 1px solid var(--border-soft); background: white; }
.er-diagram { display: block; width: 100%; min-width: 100%; height: 60vh; }
.er-highlight { stroke: #006bb0; stroke-width: 3; fill: #0076cc; fill-opacity: .05; vector-effect: non-scaling-stroke; }
.diagram-details { margin: 1rem 0; line-height: 1.5; }
.diagram-details h3, .diagram-details h4 { color: #18384f; margin-bottom: .4rem; }
.io-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: .8rem; }
.io-grid > div { padding: .6rem 1rem; background: #edf4f9; border-left: 3px solid #538bb2; }
.io-grid h4 { margin-top: 0; }
.entity-list { display: flex; flex-wrap: wrap; gap: .5rem; padding: 0; list-style: none; }
.entity-list li { background: #e0edf6; padding: .25rem .5rem; font-size: .8rem; overflow-wrap: anywhere; }
.mapping-note { padding: .7rem; border-left: 3px solid #bc8940; background: #fff8eb; }
@media (max-width: 45rem) { .io-grid { grid-template-columns: 1fr; } }

#action-title { scroll-margin-top: 3rem; }

/* Concise, full-width application overview; extended research is optional. */
.application-intro, .application-detail, .application-options-heading { max-width: none; }
.application-intro { padding-bottom: .5rem; }
.application-intro h2 { font-size: clamp(1.35rem, 2vw, 1.8rem); margin: .25rem 0 .55rem; }
.application-intro > p { margin: .35rem 0; }
.application-intro .detail-links { margin: .55rem 0 .2rem; font-size: .88rem; }
.application-summary { width: 100%; line-height: 1.5; font-size: .95rem; margin: .85rem 0; }
.application-summary p { margin: 0 0 .65rem; }
.application-summary strong { color: #18384f; }
.application-expanded { margin: .5rem 0 .85rem; }
.application-expanded > summary { cursor: pointer; color: #225e87; font-size: .88rem; padding: .3rem 0; }
.application-expanded .application-detail { padding-block: .4rem; line-height: 1.5; }
.application-options-heading { padding: 0; border: 0; }
.application-options-heading .preview-label { margin: .35rem 0; }

.application-action-buttons { display: grid; gap: .65rem; }
.application-action-buttons button { width: 100%; min-height: 2.8rem; padding: .7rem .85rem; text-align: left; font: inherit; font-size: .93rem; font-weight: 600; color: #18384f; background: linear-gradient(#fff, #e0ebf3); border: 1px solid #7296b0; border-radius: .35rem; box-shadow: 0 2px 2px #18384f24; cursor: pointer; }
.application-action-buttons button:hover { background: #d0e7f7; border-color: #276c9b; }
.application-action-buttons button:active { box-shadow: inset 0 1px 3px #18384f40; }
.application-action-buttons button[aria-current="page"] { color: white; background: #276c9b; border-color: #17486a; box-shadow: inset 0 1px 2px #163b5340; }
.application-action-buttons button:focus-visible { outline: 3px solid #dc9d28; outline-offset: 2px; }

.about-reader { display: flex; flex-wrap: wrap; gap: .45rem; align-items: center; margin: .65rem 0; }
.about-reader button { padding: .4rem .8rem; border: 1px solid #7296b0; border-radius: .3rem; background: linear-gradient(#fff,#e0ebf3); color: #18384f; font: inherit; font-size: .86rem; cursor: pointer; }
.about-reader button:hover:enabled { background: #d0e7f7; }
.about-reader button:disabled { opacity: .5; cursor: default; }
.about-reader button:focus-visible { outline: 3px solid #dc9d28; outline-offset: 2px; }
.about-reader [role="status"] { color: #526a7a; font-size: .8rem; }

/* DESKTOP_CONTROLS_20260919: shared compact command appearance. Navigation
   remains a native link; modifying actions remain CSRF-protected form buttons. */
.primary-pane .pane-content > p > a,
.primary-pane .pane-content > form > button {
  display: inline-flex; align-items: center; min-height: 28px;
  max-width: 100%; box-sizing: border-box; padding: 3px 10px;
  border: 1px solid #7b8c9b; border-radius: 2px;
  background: linear-gradient(#fff, #e1e6eb); box-shadow: 0 1px 1px #0002;
  color: #172b3a; font: 13px/1.4 "Segoe UI", sans-serif;
  text-decoration: none; cursor: pointer;
}

.menu-panel > button {
  display:flex;align-items:center;justify-content:space-between;gap:2rem;
  width:100%;padding:0.35rem 0.65rem;border:0;background:transparent;
  text-align:left;color:#18384f;font:0.83rem 'Segoe UI',sans-serif;
}
.menu-panel > button:hover,.menu-panel > button:focus-visible{background:#dcecf7;outline:1px solid #6f8798}
.menu-panel > button > span{margin-left:auto;color:#536675;font-size:0.78rem}
.primary-pane .pane-content > p { margin-block: 8px; }
.primary-pane .pane-content > p > a:hover { background: #dcecf8; border-color: #3575a6; }
.primary-pane .pane-content > p > a:active { background: #c9deed; box-shadow: inset 0 1px 2px #0003; }
.primary-pane .pane-content > p > a:focus-visible { outline: 2px solid #1266ac; outline-offset: 2px; }
.pane-content input:is([type="text"], [type="password"], [type="email"]) {
  display: block; margin-block: 4px; max-width: 32rem; min-height: 28px; padding: 3px 6px !important;
  font: 14px/1.4 "Segoe UI", sans-serif;
}
.application-action-buttons { gap: 6px; }
.application-action-buttons button { min-height: 28px; padding: 4px 8px; border-radius: 2px; font-size: 13px; }
.application-options-heading { display: none; } .application-options-heading + .pane-explanation { margin: 0; padding: 0; border: 0; }

.application-reference { color: #1d628f; text-decoration: underline; text-underline-offset: .15em; } .application-reference:hover { color: #123e5b; } .application-reference:focus-visible { outline: 2px solid #dc9d28; outline-offset: 2px; }

/* COST_WIDGET_20260922: navigation scrolls independently above persistent costs. */
.primary-pane { display:grid; grid-template-rows:auto minmax(0,1fr) auto; overflow:hidden; }
.primary-pane > .pane-content { min-height:0; min-width:0; overflow:auto; }
.cost-widget { border-top:2px solid #789db9; padding:8px 12px; background:#eaf1f6; font:12pt Verdana,sans-serif; overflow-wrap:anywhere; }
.cost-widget p { margin:5px 0; }
.cost-widget dl { display:grid; grid-template-columns:minmax(0,1fr) auto; gap:4px 8px; margin:6px 0; }
.cost-widget dd { margin:0; text-align:right; }
.cost-widget a { display:inline-block; margin-top:5px; }
.cost-widget .cost-state { float:right; }
.resource-plots{margin:.45rem 0;border-top:1px solid #8aa5b8}.resource-plot{padding:.3rem 0;border-bottom:1px solid #8aa5b8}.resource-plot strong{font-size:.85rem}.resource-axis-label{float:right;font-size:.72rem;color:#526b7a}.resource-plot-row{display:flex;align-items:center;gap:3px;height:14px}.resource-plot-row time{width:4.8rem;font-size:.65rem;color:#526b7a}.resource-bar{display:block;flex:1;height:7px;background:#e3ebf0;border-left:1px solid #8aa5b8}.resource-bar i{display:block;height:100%;min-width:2px;background:#3d7195}
.fitsm-error-dialog{z-index:1000;box-shadow:0 12px 36px #0008;min-width:min(28rem,85vw)}
.fitsm-error-dialog::backdrop{background:rgb(20 28 36 / 68%)}
.fitsm-error-dialog h2{color:#8f1d1d;margin-top:0}
.fitsm-error-dialog [data-error-content]{font-size:1rem;line-height:1.45;overflow-wrap:anywhere}
.fitsm-error-dialog button{font:inherit;font-weight:700;padding:.45rem .8rem;border:1px solid #7b2222;background:#fff1f1;color:#6f1515;cursor:pointer}
.fitsm-feedback-tabs{display:flex;gap:.35rem;border-bottom:1px solid #8aa5b8;margin:1rem 0 .75rem;padding-bottom:.35rem}
.fitsm-feedback-tabs [aria-selected="true"]{font-weight:700;background:#dcebf4}
[data-error-open].fitsm-error-present{font-weight:700;color:#8f1d1d;background:#fff1f1}
[data-error-list] li{margin:.7rem 0;padding:.55rem .7rem;border-left:4px solid #a52727;background:#fff7f7}
[data-error-list] p{margin:.25rem 0;overflow-wrap:anywhere}
[data-error-report-status]{margin-left:.5rem}