@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&family=Orbitron:wght@400;700&display=swap');
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* ── Paleta azul legada (usada pela página Sobre / about.css) ─ */
  --blue-sky:   #38A8D5;
  --blue-mid:   #2870AE;
  --blue-navy:  #1E4A8A;
  --blue-dark:  #15326A;
  --blue-deep:  #0D1E40;
  --blue-abyss: #09101E;
  --coal:       #0A0A12;
  --cream:      #F5EEE0;

  /* ── Paleta preta (aplicação) ────────────────────────────── */
  --black:  #0a0a0b;   /* fundo / canvas       */
  --ink:    #141417;   /* painéis, header, menus */
  --ink-2:  #1d1d22;   /* superfície elevada: inputs, hover */
  --line:   #2b2b32;   /* linhas / divisórias  */
  --silver: #C8C8D0;
  --white:  #FFFFFF;
  --gold:   #D4A820;
  --yellow: #F0CC30;

  /* ── Semantic ────────────────────────────────────────────── */
  --bg:       var(--black);
  --panel:    var(--ink);
  --surface:  var(--ink-2);
  --border:   var(--line);
  --accent:   #3FB5E8;     /* azul vivo sobre preto */
  --text:     var(--silver);
  --text-dim: #84848f;
  --error:    #E5484D;

  /* RGB splits para rgba() */
  --accent-rgb: 63, 181, 232;
  --gold-rgb:   212, 168, 32;
  --error-rgb:  229, 72, 77;

  /* ── Forma e elevação (flat, sem gradiente) ──────────────── */
  --radius:      12px;                       /* painéis e modais */
  --radius-sm:   8px;                        /* inputs e botões  */
  --border-soft: rgba(255, 255, 255, 0.09);  /* borda translúcida suave */
  --shadow-panel: 0 16px 40px -12px rgba(0,0,0,0.70), 0 2px 8px rgba(0,0,0,0.50);
  --shadow-modal: 0 30px 80px -20px rgba(0,0,0,0.85);
}

@keyframes pop-in  { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
@keyframes modal-in { from { opacity: 0; transform: translateY(10px) scale(0.98); } to { opacity: 1; transform: none; } }

body { background: var(--bg); color: var(--text); font-family: 'Roboto', sans-serif; height: 100vh; overflow: hidden; display: flex; flex-direction: column; }

/* ── Navbar ──────────────────────────────────────────────────────────────── */
header {
  display: flex; align-items: center;
  height: 44px; padding: 0 16px; gap: 0;
  background: var(--panel); border-bottom: 1px solid var(--border);
  flex-shrink: 0; user-select: none;
}
.app-name {
  font-family: 'Roboto', sans-serif; font-weight: 700; font-size: 15px;
  color: var(--white); letter-spacing: 0.5px; white-space: nowrap;
}
.app-name::first-letter { color: var(--accent); }
.nav-sep { width: 1px; height: 18px; background: var(--border); margin: 0 14px; flex-shrink: 0; }
.nav-spacer { flex: 1; }

/* ── Menu bar ────────────────────────────────────────────────────────────── */
.menu-bar { display: flex; align-items: stretch; height: 100%; }

.menu-item {
  position: relative; display: flex; align-items: center;
  padding: 0 13px; font-size: 13px; color: var(--text);
  cursor: pointer; transition: background 0.15s, color 0.15s;
  white-space: nowrap;
  text-decoration: none;
}
.menu-item:hover { background: rgba(255, 255, 255, 0.06); color: var(--white); }
.menu-item.mode-active { color: var(--accent); }

.menu-item.has-drop::after { content: '▾'; font-size: 9px; margin-left: 5px; opacity: 0.45; }

/* ── Dropdown ────────────────────────────────────────────────────────────── */
.dropdown {
  display: none; position: absolute; top: calc(100% + 4px); left: 0;
  min-width: 196px; background: var(--panel);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  box-shadow: var(--shadow-panel); z-index: 200; padding: 6px;
}
.menu-item:hover > .dropdown { display: block; }

.drop-btn {
  display: block; width: 100%; text-align: left;
  padding: 8px 12px; background: none; border: none; border-radius: 6px;
  color: var(--text); font-family: 'Roboto', sans-serif;
  font-size: 13px; cursor: pointer; transition: background 0.1s, color 0.1s;
}
.drop-btn:hover { background: rgba(255, 255, 255, 0.07); color: var(--white); }
.drop-btn.mode-active { color: var(--accent); }

.drop-sep { height: 1px; background: var(--border); margin: 6px 4px; }

/* ── Subcategorias de menu ───────────────────────────────────────────────── */
.drop-cat {
  position: relative; display: flex; align-items: center;
  justify-content: space-between;
  padding: 8px 10px 8px 12px; background: none; border: none; border-radius: 6px;
  color: var(--text); font-family: 'Roboto', sans-serif;
  font-size: 13px; cursor: pointer; transition: background 0.1s, color 0.1s;
  user-select: none;
}
.drop-cat:hover { background: rgba(255, 255, 255, 0.07); color: var(--white); }
.drop-cat.mode-active { color: var(--accent); }
.drop-cat .cat-arrow { font-size: 8px; opacity: 0.5; flex-shrink: 0; margin-left: 10px; }

.subdropdown {
  display: none; position: absolute; top: -6px; left: calc(100% + 4px);
  min-width: 168px; background: var(--panel);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  box-shadow: var(--shadow-panel); z-index: 201; padding: 6px;
}
.drop-cat:hover > .subdropdown { display: block; }

/* ── Componentes — dropdown com busca (click-to-open) ───────────────────── */
#menu-add:hover > .dropdown        { display: none; }
#menu-add.comp-open > .dropdown    { display: block; }

.comp-dropdown { min-width: 230px; }

.comp-search-wrap {
  padding: 4px 6px 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}

#comp-search {
  width: 100%; box-sizing: border-box;
  background: var(--surface); border: 1px solid var(--border-soft); border-radius: var(--radius-sm);
  color: var(--text); font-family: 'Roboto', sans-serif;
  font-size: 13px; padding: 7px 10px; outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
#comp-search:focus { border-color: var(--accent); color: var(--white); box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.16); }
#comp-search::placeholder { color: rgba(255,255,255,0.3); }

.comp-list {
  max-height: 340px; overflow-y: auto; padding: 4px 0;
}
.comp-list::-webkit-scrollbar { width: 4px; }
.comp-list::-webkit-scrollbar-track { background: transparent; }
.comp-list::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.comp-cat-label {
  padding: 8px 12px 3px;
  font-family: 'Roboto', sans-serif; font-size: 13px; font-weight: 500;
  letter-spacing: 0.6px; text-transform: uppercase;
  color: var(--text-dim);
}

.comp-no-results {
  padding: 10px 18px;
  font-family: 'Roboto', sans-serif; font-size: 13px;
  color: rgba(255,255,255,0.25); letter-spacing: 0.3px;
}

/* ── Status ──────────────────────────────────────────────────────────────── */
/* ── Analysis bar ────────────────────────────────────────────────────────── */
.analysis-bar { display: flex; align-items: center; gap: 10px; margin-right: 16px; }

/* Select estilizado (sem aparência nativa, com chevron próprio e foco em halo) */
.select-styled, #analysis-mode, .ac-cfg-row select {
  appearance: none; -webkit-appearance: none; -moz-appearance: none;
  background-color: var(--surface); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  font-family: 'Roboto', sans-serif; font-size: 13px;
  padding: 7px 32px 7px 12px; cursor: pointer; outline: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2.5 4.5L6 8l3.5-3.5' fill='none' stroke='%2384848f' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 11px center;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.select-styled:hover, #analysis-mode:hover, .ac-cfg-row select:hover { border-color: var(--border-soft); }
.select-styled:focus, #analysis-mode:focus, .ac-cfg-row select:focus {
  border-color: var(--accent); box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.22);
}
#analysis-mode option, .ac-cfg-row select option { background: var(--panel); color: var(--text); }

.ac-controls { display: none; align-items: center; gap: 4px; position: relative; }
.sim-time { font-size: 13px; color: var(--yellow); letter-spacing: 0.5px; display: none; min-width: 50px; text-align: right; }

.ac-btn {
  background: var(--surface); border: 1px solid var(--border-soft); border-radius: var(--radius-sm);
  color: var(--text); font-size: 13px; padding: 4px 10px; cursor: pointer;
  font-family: 'Roboto', sans-serif; transition: all 0.15s;
}
.ac-btn:hover { border-color: var(--accent); color: var(--accent); }
.ac-btn.playing { color: var(--yellow); border-color: var(--yellow); }

/* ── AC settings panel (dropdown from ⚙ button) ─────────────────────────── */
.ac-settings-panel {
  display: none; position: absolute; top: calc(100% + 8px); right: 0;
  z-index: 300; background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow-panel); padding: 14px 16px; min-width: 210px;
  white-space: nowrap;
}
.ac-settings-panel.open { display: block; }
.ac-cfg-title { font-size: 13px; font-weight: 500; color: var(--text-dim); letter-spacing: 0.8px; margin-bottom: 12px; text-transform: uppercase; }
.ac-cfg-row { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 9px; font-size: 13px; }
.ac-cfg-row:last-child { margin-bottom: 0; }
.ac-cfg-row label { color: var(--text); white-space: nowrap; }
/* .ac-cfg-row select estilizado junto de #analysis-mode (regra .select-styled) */

/* ── Canvas ──────────────────────────────────────────────────────────────── */
.canvas-wrapper { flex: 1; position: relative; overflow: hidden; }
#canvas { width: 100%; height: 100%; user-select: none; }

/* ── Terminais: ocultos por padrão, revelados por contexto ──────────────── */
.terminal { display: none; }
g[data-id]:hover .terminal  { display: block; }   /* hover sobre o componente  */
.comp-selected .terminal    { display: block; }   /* componente selecionado    */
#components.wire-mode .terminal { display: block; } /* modo fio (só #components) */


/* ── Props panel ─────────────────────────────────────────────────────────── */
.props-panel {
  position: absolute; top: 16px; right: 16px; width: 264px;
  background: var(--panel);
  border: 1px solid var(--border-soft); border-radius: var(--radius);
  padding: 16px; font-size: 13px; display: none;
  box-shadow: var(--shadow-panel);
}
.props-panel.visible { display: block; animation: pop-in 0.16s ease-out; }
.props-panel h3 { font-family: 'Roboto', sans-serif; font-weight: 700; font-size: 13px; color: var(--white); letter-spacing: 0.3px; margin-bottom: 14px; border-bottom: 1px solid var(--border-soft); padding-bottom: 10px; }
.prop-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 11px; gap: 8px; }
.prop-row label { color: var(--text); font-size: 13px; flex: 1; }
.prop-row input[type="number"],
.prop-row input[type="text"] {
  width: 96px; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  color: var(--white); font-family: 'Roboto', sans-serif; font-size: 13px;
  padding: 7px 10px; text-align: right;
  transition: border-color .15s, box-shadow .15s;
}
.prop-row input[type="number"]:focus,
.prop-row input[type="text"]:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.22);
}
.lbl-toggle { width: 15px; height: 15px; flex-shrink: 0; cursor: pointer; accent-color: var(--accent); }

/* ── Valores de simulação no painel de props ─────────────────────────────── */
.prop-sim-sep   { height: 1px; background: var(--border); margin: 14px 0 10px; }
.prop-sim-title { font-size: 13px; font-weight: 500; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.6px; margin-bottom: 8px; }
.prop-sim-row   { margin-bottom: 8px; }
.sim-val        { font-size: 13px; font-weight: 700; font-family: 'Roboto', sans-serif; }
.sim-val.v      { color: var(--yellow); }
.sim-val.i      { color: var(--accent); }
.sim-val.p      { color: var(--gold); }
.prop-transform-row { align-items: flex-start; }
.transform-btns { display: flex; gap: 5px; }
.transform-btns button {
  flex: 1; padding: 5px 0;
  background: rgba(255,255,255,0.05); border: 1px solid var(--border-soft);
  color: var(--text); font-size: 14px; cursor: pointer; border-radius: var(--radius-sm);
  transition: background 0.15s, color 0.15s, border-color 0.15s; line-height: 1;
}
.transform-btns button:hover { background: rgba(var(--accent-rgb),0.15); color: var(--white); border-color: rgba(var(--accent-rgb),0.5); }

/* Linha de ações: Aplicar (grande) + Deletar (✕ ao lado) */
.prop-actions { display: flex; gap: 8px; margin-top: 12px; }
.prop-apply {
  flex: 1; padding: 11px; border: none; border-radius: var(--radius-sm);
  background: var(--accent);
  color: #04222e; font-family: 'Roboto', sans-serif; font-weight: 600; font-size: 14px;
  cursor: pointer; transition: filter 0.15s, transform 0.05s;
}
.prop-apply:hover  { filter: brightness(1.1); }
.prop-apply:active { transform: translateY(1px); }
.prop-delete {
  flex: 0 0 auto; width: 44px; padding: 0; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  background: rgba(var(--error-rgb), 0.08); border: 1px solid rgba(var(--error-rgb), 0.4);
  color: #ff8d8d; font-family: 'Roboto', sans-serif; font-size: 17px; line-height: 1; cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.prop-delete:hover { background: rgba(var(--error-rgb), 0.2); border-color: var(--error); color: #ffb3b3; }
.prop-osc {
  width: 100%; padding: 9px; background: transparent;
  border: 1px solid var(--border-soft); border-radius: var(--radius-sm);
  color: var(--accent); font-family: 'Roboto', sans-serif; font-size: 13px;
  cursor: pointer; margin-top: 8px; transition: all 0.2s;
}
.prop-osc:hover { background: rgba(var(--accent-rgb),0.12); border-color: var(--accent); }

/* ── Subcircuito: botão no painel de props ───────────────────────────────── */
.prop-enter-sub {
  width: 100%; margin-top: 8px; padding: 8px 0;
  background: rgba(var(--accent-rgb), 0.12); border: 1px solid rgba(var(--accent-rgb), 0.35);
  border-radius: var(--radius-sm);
  color: var(--accent); font-family: 'Roboto', sans-serif;
  font-size: 13px; cursor: pointer; transition: background 0.15s;
}
.prop-enter-sub:hover { background: rgba(var(--accent-rgb), 0.2); }

/* ── Subcircuito: breadcrumb de navegação ────────────────────────────────── */
#subcircuit-breadcrumb {
  display: none; position: fixed;
  top: 52px; left: 50%; transform: translateX(-50%);
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 14px; color: var(--text);
  font-family: 'Roboto', sans-serif; font-size: 13px;
  z-index: 200; align-items: center; gap: 10px;
  box-shadow: var(--shadow-panel);
}
#subcircuit-breadcrumb.active { display: flex; }
#subcircuit-path { color: var(--accent); letter-spacing: 0.02em; }
#btn-exit-subcircuit {
  background: rgba(var(--error-rgb), 0.1); border: 1px solid rgba(var(--error-rgb), 0.5); color: #ff8d8d;
  cursor: pointer; border-radius: 6px; padding: 3px 9px;
  font-size: 13px; font-family: 'Roboto', sans-serif;
  transition: background 0.15s;
}
#btn-exit-subcircuit:hover { background: rgba(var(--error-rgb), 0.2); }

/* ── Toast / Hint ────────────────────────────────────────────────────────── */
.wire-toast { position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%); background: var(--panel); border: 1px solid var(--border-soft); border-radius: 999px; color: var(--accent); font-size: 13px; padding: 8px 18px; pointer-events: none; display: none; box-shadow: var(--shadow-panel); }
.hint { position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%); font-size: 13px; color: var(--text); opacity: 0.4; pointer-events: none; }

/* ── Live sim indicator ──────────────────────────────────────────────────── */
.sim-live { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: transparent; transition: background 0.3s, box-shadow 0.3s; }
.sim-live.ok  { background: #44CC44; box-shadow: 0 0 6px #44CC44; animation: pulse-live 2s infinite; }
.sim-live.err { background: var(--error); box-shadow: 0 0 4px var(--error); animation: none; cursor: pointer; }
@keyframes pulse-live { 0%,100%{opacity:1} 50%{opacity:0.45} }

.ac-btn.osc-active { color: var(--yellow); border-color: var(--yellow); }

/* ── Circuit Info (bloco de detalhes) ────────────────────────────────────── */
#circuit-info {
  position: absolute; bottom: 16px; right: 16px;
  display: flex; flex-direction: column; align-items: flex-end; gap: 8px;
  z-index: 5; user-select: none;
}
#ci-toggle {
  background: var(--panel); border: 1px solid var(--border-soft); border-radius: var(--radius-sm);
  color: var(--text); font-family: 'Roboto', sans-serif;
  font-size: 13px; font-weight: 500;
  padding: 8px 14px; cursor: pointer; outline: none; white-space: nowrap;
  box-shadow: var(--shadow-panel);
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
#ci-toggle:hover { background: var(--surface); color: var(--white); border-color: var(--border); }
#ci-panel {
  display: none; width: 300px;
  background: var(--panel); border: 1px solid var(--border-soft); border-radius: var(--radius);
  box-shadow: var(--shadow-panel); padding: 16px;
  font-family: 'Roboto', sans-serif;
}
#circuit-info.ci-open #ci-panel { display: block; animation: pop-in 0.16s ease-out; }
.ci-field { margin-bottom: 13px; }
.ci-field:last-of-type { margin-bottom: 0; }
.ci-label {
  display: block; font-size: 13px; font-weight: 500; color: var(--text-dim);
  margin-bottom: 4px;
}
.ci-value {
  display: block; font-size: 13px; color: var(--text); cursor: text;
  line-height: 1.45; min-height: 19px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  border-radius: 5px; padding: 2px 5px; margin: 0 -5px;
  transition: background 0.12s, color 0.12s;
}
.ci-value:hover { background: rgba(255,255,255,0.05); color: var(--white); }
.ci-placeholder:empty::before { content: '—'; opacity: 0.35; }
.ci-foot {
  margin-top: 13px; padding-top: 11px; border-top: 1px solid var(--border);
  display: flex; justify-content: flex-end;
}
.ci-datetime {
  color: var(--text-dim); font-size: 13px; text-align: right;
  line-height: 1.45; pointer-events: none;
}
.ci-edit-input {
  width: 100%; background: var(--surface);
  border: 1px solid var(--accent); border-radius: 5px;
  color: var(--white); font-family: 'Roboto', sans-serif;
  font-size: 13px; padding: 3px 6px; outline: none;
  box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.2);
}

/* ── Loading screen ──────────────────────────────────────────────────────── */
#loading-screen {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.35s ease;
}
#loading-screen.fade-out { opacity: 0; pointer-events: none; }
.ls-box { display: flex; flex-direction: column; align-items: center; gap: 18px; }
.ls-title {
  font-family: 'Roboto', sans-serif; font-weight: 700;
  font-size: 30px; letter-spacing: 1px;
  color: var(--white);
}
.ls-title::first-letter { color: var(--accent); }
.ls-bar {
  width: 220px; height: 3px; border-radius: 999px;
  background: rgba(255,255,255,0.08);
  overflow: hidden;
}
.ls-bar-fill {
  height: 100%; width: 40%; border-radius: 999px;
  background: var(--accent);
  animation: ls-slide 1.2s ease-in-out infinite;
}
@keyframes ls-slide {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(320%); }
}
.ls-msg {
  font-size: 13px; letter-spacing: 0.5px;
  color: var(--text-dim);
}