/* ORGANELA — clínico: branco de sala limpa, linhas de 1px, nada de sombra, um só acento verde-azulado.
   Layout: barra fina no topo + bancada em grade (lâminas · fichas técnicas). */
:root {
  --bg: #ffffff;
  --panel: #ffffff;
  --panel-2: #f3f5f6;
  --line: #e2e6e9;
  --fg: #0f1a21;
  --muted: #687680;
  --bar: #ffffff;
  --bar-fg: #0f1a21;
  --bar-muted: #687680;
  --gfp: #0b8794;       /* acento clínico */
  --gfp-soft: #e6f3f4;
  --on-accent: #ffffff;
  --dapi: #0b8794;
  --mito: #c4372b;
  --warn: #a8701a;
  --plot-grid: #eef1f3;
  --shadow: none;
  --f-display: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --f-body: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
  --f-mono: "IBM Plex Mono", Menlo, Consolas, monospace;
  --r: 0px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1014; --panel: #0f161b; --panel-2: #151e24; --line: #222d34; --fg: #e5ecf0; --muted: #8796a0;
    --bar: #0b1014; --bar-fg: #e5ecf0; --bar-muted: #8796a0;
    --gfp: #43c3cf; --gfp-soft: #0f2a2e; --on-accent: #04191c; --dapi: #43c3cf; --mito: #ff7a6b; --warn: #e8b04c; --plot-grid: #18222a;
    --shadow: none; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0b1014; --panel: #0f161b; --panel-2: #151e24; --line: #222d34; --fg: #e5ecf0; --muted: #8796a0;
  --bar: #0b1014; --bar-fg: #e5ecf0; --bar-muted: #8796a0;
  --gfp: #43c3cf; --gfp-soft: #0f2a2e; --on-accent: #04191c; --dapi: #43c3cf; --mito: #ff7a6b; --warn: #e8b04c; --plot-grid: #18222a;
  --shadow: none; color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--fg); font: 14px/1.55 var(--f-body); -webkit-font-smoothing: antialiased; }
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 10; background: var(--bar); }
a { color: var(--gfp); text-underline-offset: 3px; }
h1, h2, h3 { font-family: var(--f-display); font-weight: 300; text-wrap: balance; letter-spacing: -.02em; margin: 0; }
.mono { font-family: var(--f-mono); font-variant-numeric: tabular-nums; }
.eyebrow { font: 500 11px/1.2 var(--f-mono); text-transform: uppercase; letter-spacing: .14em; color: var(--muted); }
:focus-visible { outline: 2px solid var(--gfp); outline-offset: 2px; }
.wrap { max-width: 1240px; margin: 0 auto; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }

/* barra da galeria */
.topline { background: var(--bar); color: var(--bar-muted); font: 11.5px var(--f-mono); border-bottom: 1px solid var(--line); }
.topline .wrap { display: flex; justify-content: space-between; gap: 12px; padding-block: 6px; flex-wrap: wrap; }
.nav { background: var(--bar); color: var(--bar-fg); position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; border-bottom: 1px solid var(--line); }
.nav .wrap { display: flex; align-items: center; gap: 20px; min-height: 58px; flex-wrap: wrap; padding-block: 6px; }
.brand { display: flex; align-items: center; gap: 11px; color: var(--bar-fg); text-decoration: none; }
.brand svg { flex: none; }
.brand b { font: 500 15px/1 var(--f-body); letter-spacing: .26em; text-transform: uppercase; }
.brand .mark { color: var(--fg); }
.brand small { display: block; margin-top: 5px; font: 9.5px/1 var(--f-mono); color: var(--bar-muted); letter-spacing: .16em; text-transform: uppercase; }
.nav nav { display: flex; gap: 4px; flex-wrap: wrap; align-items: center; margin-left: auto; }
.nav nav a { color: var(--bar-fg); text-decoration: none; padding: 7px 11px; border-radius: var(--r); font-weight: 500; font-size: 13.5px; }
.nav nav a:hover { background: var(--panel-2); }
.nav nav a[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--fg); border-radius: 0; }
.nav nav a.cta { background: var(--fg); color: var(--bg); }
.nav nav a.cta:hover { background: var(--gfp); color: var(--on-accent); }

/* botões e campos */
.btn { appearance: none; border: 1px solid var(--line); background: var(--panel); color: var(--fg); font: 500 13px var(--f-body); padding: 6px 12px; border-radius: var(--r); cursor: pointer; display: inline-flex; align-items: center; gap: 6px; text-decoration: none; white-space: nowrap; }
.btn:hover { border-color: var(--muted); }
.btn.primary { background: var(--gfp); border-color: var(--gfp); color: var(--on-accent); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; }
.btn.danger { color: var(--mito); }
.btn:disabled { opacity: .5; cursor: default; }
input, select, textarea { font: 13px var(--f-body); color: var(--fg); background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 5px 7px; min-width: 0; }
input:focus, select:focus, textarea:focus { border-color: var(--gfp); outline: none; }
input[type="number"], input.num { font-family: var(--f-mono); font-variant-numeric: tabular-nums; }
input[type="checkbox"] { accent-color: var(--gfp); }
input[type="range"] { accent-color: var(--gfp); padding: 0; border: 0; background: transparent; }
label.f { display: grid; gap: 3px; font-size: 12px; color: var(--muted); min-width: 0; }
label.f > input, label.f > select { width: 100%; }

/* ===== modelador ===== */
.app { display: grid; grid-template-columns: 236px minmax(0, 1fr); min-height: calc(100vh - 58px); }
.tree { background: var(--panel); border-right: 1px solid var(--line); padding: 14px 10px 30px; font-size: 13px; }
.tree h4 { margin: 16px 8px 6px; font: 500 10.5px var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.tree h4:first-child { margin-top: 2px; }
.tree button { display: flex; width: 100%; justify-content: space-between; align-items: center; gap: 8px; text-align: left; border: 0; background: transparent; color: var(--fg); padding: 6px 8px; border-radius: var(--r); cursor: pointer; font: 13px var(--f-body); }
.tree button:hover { background: var(--panel-2); }
.tree button.on { background: var(--gfp-soft); color: var(--fg); font-weight: 600; box-shadow: inset 2px 0 0 var(--gfp); }
.tree button .c { font: 11px var(--f-mono); color: var(--muted); }
.tree .model-name { padding: 4px 8px 10px; border-bottom: 1px solid var(--line); margin-bottom: 4px; }
.tree .model-name input { width: 100%; font: 400 16px var(--f-display); border-color: transparent; background: transparent; padding: 4px 6px; margin-left: -6px; }
.tree .model-name input:hover { border-color: var(--line); }
.tree .tag { display: inline-block; font: 10px var(--f-mono); padding: 1px 6px; border-radius: 3px; background: var(--panel-2); color: var(--muted); }

.main { min-width: 0; padding: 16px max(16px, env(safe-area-inset-right, 0px)) 40px 20px; display: grid; gap: 14px; align-content: start; }
.toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.toolbar .sp { flex: 1; }
.toolbar select { max-width: 260px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); box-shadow: var(--shadow); min-width: 0; }
.card > header { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.card > header h2 { font-size: 17px; font-weight: 400; letter-spacing: -.01em; }
.card > header .sp { flex: 1; }
.card > .body { padding: 14px; min-width: 0; }
.hint { color: var(--muted); font-size: 12.5px; margin: 0; }
.err { color: var(--mito); font: 12.5px var(--f-mono); white-space: pre-wrap; }
.okmsg { color: var(--gfp); font: 12.5px var(--f-mono); }

.tbl-wrap { overflow-x: auto; }
table.ed { border-collapse: collapse; width: 100%; font-size: 13px; }
table.ed th { text-align: left; font: 600 10.5px var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); padding: 6px 6px; border-bottom: 1px solid var(--line); white-space: nowrap; }
table.ed td { padding: 4px 6px; border-bottom: 1px solid var(--line); vertical-align: middle; }
table.ed td input, table.ed td select { width: 100%; }
table.ed td input.num { max-width: 110px; }
table.ed td.x { width: 34px; text-align: right; }
.sw { width: 26px; height: 26px; padding: 0; border: 1px solid var(--line); border-radius: var(--r); background: none; cursor: pointer; }

.rx { border: 1px solid var(--line); border-radius: var(--r); padding: 10px 12px; display: grid; gap: 8px; background: var(--panel); }
.rx + .rx { margin-top: 10px; }
.rx .row { display: grid; grid-template-columns: 90px minmax(0, 1.2fr) minmax(0, 1.6fr) 150px 140px 30px; gap: 8px; align-items: end; }
.rx .kin { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 8px; }
.rx .rate { font: 12px var(--f-mono); color: var(--muted); overflow-x: auto; white-space: nowrap; }
.rx .eq { font-family: var(--f-mono); }

pre.math { margin: 0; font: 12.5px/1.65 var(--f-mono); background: var(--panel-2); border-radius: var(--r); padding: 14px; overflow-x: auto; white-space: pre; }

.diagram { width: 100%; height: 440px; display: block; background: var(--panel); border-radius: 0 0 var(--r) var(--r); touch-action: none; }
.legend { display: flex; gap: 14px; flex-wrap: wrap; font-size: 12px; color: var(--muted); }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 5px; vertical-align: -1px; }

.sim-grid { display: grid; grid-template-columns: 290px minmax(0, 1fr); gap: 14px; align-items: start; }
.settings { display: grid; gap: 10px; }
.settings .two { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.settings fieldset { border: 1px solid var(--line); border-radius: var(--r); padding: 8px 10px 10px; margin: 0; display: grid; gap: 8px; min-width: 0; }
.settings legend { font: 600 10.5px var(--f-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); padding: 0 4px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { display: inline-flex; align-items: center; gap: 6px; font: 12px var(--f-mono); padding: 3px 9px 3px 7px; border: 1px solid var(--line); border-radius: 999px; cursor: pointer; user-select: none; background: var(--panel); color: var(--fg); }
.chip i { width: 9px; height: 9px; border-radius: 50%; }
.chip.off { opacity: .45; }
.plot { width: 100%; height: 360px; display: block; }
.plot.small { height: 230px; }
.stats { display: flex; gap: 18px; flex-wrap: wrap; font: 12px var(--f-mono); color: var(--muted); }
.stats b { color: var(--fg); font-weight: 600; }
.progress { height: 4px; background: var(--panel-2); border-radius: 2px; overflow: hidden; }
.progress > div { height: 100%; width: 0; background: var(--gfp); transition: width .15s; }

.viewer { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: 14px; }
.field-wrap { position: relative; background: #000; border-radius: var(--r); overflow: hidden; aspect-ratio: 1; max-width: 100%; }
.field-wrap canvas { width: 100%; height: 100%; display: block; image-rendering: pixelated; cursor: crosshair; }
.field-wrap .tlabel { position: absolute; left: 8px; top: 6px; font: 12px var(--f-mono); color: #e8eef7; text-shadow: 0 1px 2px #000; pointer-events: none; }
.field-wrap .scale { position: absolute; right: 8px; bottom: 8px; font: 11px var(--f-mono); color: #e8eef7; text-shadow: 0 1px 2px #000; pointer-events: none; display: grid; justify-items: end; gap: 2px; }
.field-wrap .scale i { display: block; height: 3px; background: #e8eef7; }
.cbar { height: 10px; border-radius: 2px; }
.cbar-l { display: flex; justify-content: space-between; font: 11px var(--f-mono); color: var(--muted); }
.geo-prev { width: 100%; max-width: 240px; justify-self: center; aspect-ratio: 1; image-rendering: pixelated; border-radius: var(--r); border: 1px solid var(--line); display: block; }
.toast { position: fixed; right: max(16px, env(safe-area-inset-right, 0px)); bottom: calc(16px + env(safe-area-inset-bottom, 0px)); background: var(--fg); color: var(--bg); padding: 9px 14px; border-radius: var(--r); font-size: 13px; box-shadow: var(--shadow); z-index: 50; }
.menu { position: relative; }
.menu > div { position: absolute; top: calc(100% + 4px); right: 0; background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); box-shadow: var(--shadow); padding: 4px; min-width: 220px; z-index: 30; display: grid; }
.menu > div button { text-align: left; border: 0; background: none; color: var(--fg); padding: 7px 10px; border-radius: var(--r); font: 13px var(--f-body); cursor: pointer; }
.menu > div button:hover { background: var(--panel-2); }
.dbitem { display: flex; justify-content: space-between; gap: 6px; align-items: center; }
.dbitem small { color: var(--muted); font: 11px var(--f-mono); }

@media (max-width: 980px) {
  .sim-grid { grid-template-columns: minmax(0, 1fr); }
  .viewer { grid-template-columns: minmax(0, 1fr); }
  .rx .row { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
}
@media (max-width: 760px) {
  .app { grid-template-columns: minmax(0, 1fr); }
  .tree { border-right: 0; border-bottom: 1px solid var(--line); padding: 10px max(16px, env(safe-area-inset-right, 0px)) 10px max(16px, env(safe-area-inset-left, 0px)); display: flex; gap: 6px; overflow-x: auto; }
  .tree h4, .tree .model-name { display: none; }
  .tree button { width: auto; white-space: nowrap; flex: none; }
  .main { padding-left: max(16px, env(safe-area-inset-left, 0px)); }
  .diagram { height: 340px; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; } }

/* sound toggle in the top bar: a speaker with three bars that breathe while sound is on */
.snd { display: inline-flex; align-items: center; gap: 7px; background: none; border: 1px solid var(--line); color: var(--bar-fg); font: 500 12.5px var(--f-body); padding: 6px 10px; cursor: pointer; border-radius: var(--r); }
.snd:hover { border-color: var(--muted); }
.snd svg { display: block; }
.snd .bars rect { fill: var(--muted); transform-origin: 50% 100%; transform-box: fill-box; transform: scaleY(.35); }
.snd.on { border-color: var(--gfp); color: var(--gfp); }
.snd.on .bars rect { fill: var(--gfp); animation: snd-breathe 2.4s ease-in-out infinite; }
.snd.on .bars rect:nth-child(2) { animation-delay: -.8s; }
.snd.on .bars rect:nth-child(3) { animation-delay: -1.6s; }
.snd.armed { border-style: dashed; }
@keyframes snd-breathe { 0%, 100% { transform: scaleY(.35); } 50% { transform: scaleY(1); } }
@media (prefers-reduced-motion: reduce) { .snd.on .bars rect { animation: none; transform: scaleY(.8); } }

/* ---------- phones and tablets ---------- */
.menu-btn { display: none; align-items: center; gap: 8px; background: none; border: 1px solid var(--line); color: var(--bar-fg); font: 500 14px var(--f-body); padding: 0 12px; min-height: 44px; cursor: pointer; border-radius: var(--r); }
@media (max-width: 760px) {
  .topline .wrap > span + span { display: none; }
  .nav .wrap { flex-wrap: nowrap; gap: 8px; min-height: 58px; padding-block: 7px; }
  .brand { margin-right: auto; min-width: 0; }
  .brand b { font-size: 14px; letter-spacing: .22em; }
  .menu-btn { display: inline-flex; }
  .snd { min-height: 44px; min-width: 44px; justify-content: center; padding: 0 12px; }
  .snd span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
  #main-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; margin: 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--bar); border-bottom: 1px solid var(--line); padding: 4px max(16px, env(safe-area-inset-right, 0px)) 16px max(16px, env(safe-area-inset-left, 0px)); box-shadow: 0 18px 30px rgba(0, 0, 0, .08); }
  #main-nav.open { display: flex; }
  #main-nav a { font-size: 17px; padding: 14px 2px; min-height: 52px; display: flex; align-items: center; border-top: 1px solid var(--line); border-radius: 0; }
  #main-nav a:first-child { border-top: 0; }
  #main-nav a[aria-current="page"] { box-shadow: inset 3px 0 0 var(--gfp); padding-left: 12px; }
  #main-nav a.cta { justify-content: center; margin-top: 10px; border-top: 0; }
  /* comfortable touch targets; 16px fields stop iOS from zooming on focus */
  .btn { min-height: 44px; padding: 0 14px; font-size: 14px; }
  input:not([type="checkbox"]):not([type="radio"]):not([type="range"]):not([type="color"]), select, textarea { min-height: 44px; font-size: 16px; }
  input[type="range"] { height: 32px; }
  input[type="checkbox"], input[type="radio"] { width: 20px; height: 20px; vertical-align: -4px; }
  label.hint { display: inline-flex; align-items: center; gap: 8px; min-height: 40px; }
}

/* modeler on small screens: results above their settings, model tabs stay reachable */
@media (max-width: 980px) {
  .sim-grid > .card:first-child { order: 2; }
}
@media (max-width: 760px) {
  .tree { position: sticky; top: calc(58px + env(safe-area-inset-top, 0px)); z-index: 15; scrollbar-width: none; }
  .tree::-webkit-scrollbar { display: none; }
  .tree button { min-height: 44px; }
  .toolbar select { flex: 1 1 100%; max-width: none; }
  .card > .body { padding: 12px; }
  .card > header { padding: 10px 12px; }
  .plot { height: 280px; }
  .plot.small { height: 210px; }
  .chip { min-height: 36px; padding: 0 12px 0 10px; }
  .menu > div { right: auto; left: 0; }
}