/* ============================================================
   AULA 6: COMPLEXIDADE DE ALGORITMOS ASSOCIADOS A ESTRUTURAS DE DADOS
   Tema LaTeX Beamer Warsaw Fiel para Reveal.js
   Autor: Pedro Ximenes (UNICAP)
   ============================================================ */

:root {
  /* Escala de Zoom de Fonte */
  --font-zoom: 1;

  /* Paleta Beamer Warsaw Oficial (Tema Claro) */
  --warsaw-dark: #001f3f;
  --warsaw-primary: #003366;
  --warsaw-secondary: #174276;
  --warsaw-light: #e8f0fe;
  --warsaw-accent: #2563eb;
  
  /* Cores dos Blocos Beamer */
  --block-header-bg: linear-gradient(180deg, #003366 0%, #153e75 100%);
  --block-header-color: #ffffff;
  --block-body-bg: #f0f4f9;
  --block-body-border: #d0dbe8;
  --block-body-color: #1a202c;

  --example-header-bg: linear-gradient(180deg, #1b5e20 0%, #2e7d32 100%);
  --example-header-color: #ffffff;
  --example-body-bg: #f0faf0;
  --example-body-border: #c8e6c9;
  --example-body-color: #1a331b;

  --alert-header-bg: linear-gradient(180deg, #88181e 0%, #a8232a 100%);
  --alert-header-color: #ffffff;
  --alert-body-bg: #fdf2f2;
  --alert-body-border: #f8d7da;
  --alert-body-color: #4a0f12;

  /* Superfície geral */
  --bg-main: #f1f5f9;
  --slide-bg: #ffffff;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --border-color: #e2e8f0;

  /* Pseudocódigo */
  --code-bg: #f8fafc;
  --code-border: #cbd5e1;
  --code-line-num: #94a3b8;
  --code-keyword: #003366;
  --code-comment: #15803d;
  --code-var: #0f172a;
  --code-num: #b45309;

  /* Canvas / Simuladores */
  --canvas-bg: #f8fafc;
  --canvas-border: #cbd5e1;
  --canvas-text: #1e293b;
  --node-default: #3b82f6;
  --node-active: #eab308;
  --node-success: #22c55e;
  --node-danger: #ef4444;
  --node-highlight: #8b5cf6;
}

/* Modo Escuro */
body.dark-mode {
  --warsaw-dark: #060c18;
  --warsaw-primary: #0f2b4c;
  --warsaw-secondary: #1a3c66;
  --warsaw-light: #1e293b;
  --warsaw-accent: #38bdf8;

  --block-header-bg: linear-gradient(180deg, #103159 0%, #1a4273 100%);
  --block-header-color: #ffffff;
  --block-body-bg: #0f1b2b;
  --block-body-border: #1e3a5f;
  --block-body-color: #e2e8f0;

  --example-header-bg: linear-gradient(180deg, #144618 0%, #1e6324 100%);
  --example-header-color: #ffffff;
  --example-body-bg: #0d2111;
  --example-body-border: #1a4b20;
  --example-body-color: #e2e8f0;

  --alert-header-bg: linear-gradient(180deg, #5c1115 0%, #7d191f 100%);
  --alert-header-color: #ffffff;
  --alert-body-bg: #260d10;
  --alert-body-border: #52191e;
  --alert-body-color: #fce7e7;

  --bg-main: #0b0f17;
  --slide-bg: #111827;
  --text-main: #e2e8f0;
  --text-muted: #94a3b8;
  --border-color: #334155;

  --code-bg: #090d14;
  --code-border: #1e293b;
  --code-line-num: #64748b;
  --code-keyword: #38bdf8;
  --code-comment: #4ade80;
  --code-var: #f1f5f9;
  --code-num: #fbbf24;

  --canvas-bg: #0b0f17;
  --canvas-border: #1e293b;
  --canvas-text: #e2e8f0;
}

/* Reset e Base */
html, body {
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  overflow: hidden;
  transition: background-color 0.25s ease, color 0.25s ease;
}

/* ============================================================
   CABEÇALHO FIXO WARSAW (DUPLA BARRA)
   ============================================================ */

#warsaw-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  font-size: 11px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.18);
  user-select: none;
}

/* Barra 1: Seções e Ferramentas */
.warsaw-section-bar {
  background: var(--warsaw-dark);
  color: #94a3b8;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2px 14px;
  height: 24px;
  box-sizing: border-box;
}

.warsaw-sections-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
  flex: 1;
}
.warsaw-sections-nav::-webkit-scrollbar {
  display: none;
}

.warsaw-nav-back {
  color: #93c5fd;
  text-decoration: none;
  font-weight: 700;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(37, 99, 235, 0.25);
  border: 1px solid rgba(147, 197, 253, 0.35);
  transition: all 0.2s ease;
  white-space: nowrap;
}
.warsaw-nav-back:hover {
  background: rgba(37, 99, 235, 0.5);
  color: #ffffff;
  border-color: #ffffff;
}

.warsaw-sec-item {
  color: #cbd5e1;
  text-decoration: none;
  cursor: pointer;
  padding: 1px 7px;
  border-radius: 3px;
  transition: all 0.18s ease;
  white-space: nowrap;
  font-weight: 500;
  font-size: 10.5px;
}
.warsaw-sec-item:hover {
  color: #ffffff;
  background: rgba(255,255,255,0.16);
}
.warsaw-sec-item.active {
  color: #ffffff;
  background: var(--warsaw-primary);
  font-weight: 700;
}

.warsaw-tools {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-left: 10px;
}

/* Grupo de Zoom de Fonte [ A- | 100% | A+ ] */
.font-zoom-group {
  display: inline-flex;
  align-items: center;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: 4px;
  overflow: hidden;
}

.font-zoom-btn {
  background: transparent;
  border: none;
  color: #ffffff;
  padding: 1px 7px;
  font-size: 10px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s ease;
  line-height: 18px;
}
.font-zoom-btn:hover {
  background: rgba(255,255,255,0.22);
}

#font-zoom-label {
  padding: 0 6px;
  font-size: 9.5px;
  font-weight: 600;
  color: #e2e8f0;
  border-left: 1px solid rgba(255,255,255,0.15);
  border-right: 1px solid rgba(255,255,255,0.15);
  min-width: 32px;
  text-align: center;
  line-height: 18px;
}

.warsaw-tool-btn, .theme-toggle-btn {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.22);
  color: #ffffff;
  border-radius: 4px;
  padding: 1px 8px;
  font-size: 10.5px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease;
  line-height: 18px;
}
.warsaw-tool-btn:hover, .theme-toggle-btn:hover {
  background: rgba(255,255,255,0.25);
  border-color: rgba(255,255,255,0.45);
  color: #ffffff;
}

/* Barra 2: Subseção Ativa */
.warsaw-subsection-bar {
  background: var(--warsaw-primary);
  color: #e2e8f0;
  display: flex;
  align-items: center;
  padding: 2px 18px;
  height: 20px;
  box-sizing: border-box;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

/* ============================================================
   RODAPÉ FIXO INFERIOR (FOOTLINE WARSAW)
   ============================================================ */

#warsaw-footline {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 24px;
  z-index: 1000;
  display: grid;
  grid-template-columns: 28% 46% 26%;
  font-size: 11px;
  color: #ffffff;
  box-shadow: 0 -2px 8px rgba(0,0,0,0.15);
  user-select: none;
}

.foot-left {
  background: var(--warsaw-dark);
  display: flex;
  align-items: center;
  padding: 0 14px;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.foot-mid {
  background: var(--warsaw-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 10px;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.foot-right {
  background: var(--warsaw-secondary);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 0 14px;
  gap: 8px;
  font-weight: 600;
}

.foot-btn {
  background: rgba(255,255,255,0.15);
  border: none;
  color: white;
  border-radius: 3px;
  padding: 1px 6px;
  font-size: 10px;
  cursor: pointer;
  line-height: 14px;
  transition: background 0.15s ease;
}
.foot-btn:hover {
  background: rgba(255,255,255,0.3);
}

/* ============================================================
   CONTAINER DO REVEAL.JS (1024 x 768)
   ============================================================ */

.reveal-viewport {
  background: var(--bg-main) !important;
}

.reveal {
  font-family: inherit !important;
  color: var(--text-main) !important;
  font-size: calc(20px * var(--font-zoom, 1));
}

.reveal .slides {
  text-align: left;
}

.reveal .slides > section,
.reveal .slides > section > section {
  padding: 0 !important;
  box-sizing: border-box;
  width: 1024px !important;
  height: 768px !important;
  top: 0 !important;
}

/* Slide Container Interno com Margens e Scroll seguro */
.beamer-slide {
  position: relative;
  width: 100%;
  height: 100%;
  box-sizing: border-box;
  padding: 46px 28px 28px 28px; /* 46px topo para acomodar as 2 barras superiores */
  display: flex;
  flex-direction: column;
  background: var(--slide-bg);
  overflow-y: auto;
  overflow-x: hidden;
}

/* Banner de Título do Slide */
.slide-title-banner {
  background: linear-gradient(180deg, var(--warsaw-primary) 0%, var(--warsaw-secondary) 100%);
  color: #ffffff;
  padding: 7px 18px;
  margin: -4px -28px 14px -28px;
  box-shadow: 0 3px 6px rgba(0,0,0,0.15);
  border-radius: 0 0 5px 5px;
}

.slide-title-banner h2 {
  font-size: calc(22px * var(--font-zoom, 1));
  font-weight: 700;
  margin: 0;
  padding: 0;
  color: #ffffff !important;
  text-shadow: 0 1px 2px rgba(0,0,0,0.3);
  letter-spacing: -0.2px;
}

.slide-title-banner .slide-subtitle {
  font-size: calc(12.5px * var(--font-zoom, 1));
  color: #cbd5e1;
  margin-top: 2px;
  font-weight: 400;
}

/* ============================================================
   BLOCOS BEAMER OFICIAIS
   ============================================================ */

.block, .beamer-block,
.exampleblock, .example-block,
.alertblock, .alert-block {
  margin: 8px 0 12px 0;
  border-radius: 6px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
  overflow: hidden;
  width: 100%;
  box-sizing: border-box;
}

/* Bloco Padrão / Definição / Teorema */
.block .block-title,
.beamer-block .block-title {
  background: var(--block-header-bg);
  color: var(--block-header-color);
  padding: 6px 14px;
  font-weight: 700;
  font-size: calc(16.5px * var(--font-zoom, 1));
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: -0.2px;
}

.block .block-content,
.beamer-block .block-content {
  background: var(--block-body-bg);
  border: 1px solid var(--block-body-border);
  border-top: none;
  padding: 10px 14px;
  color: var(--block-body-color);
  font-size: calc(17px * var(--font-zoom, 1));
  line-height: 1.45;
  border-radius: 0 0 6px 6px;
}

/* Bloco Exemplo / Estudo de Caso */
.exampleblock .block-title,
.example-block .block-title {
  background: var(--example-header-bg);
  color: var(--example-header-color);
  padding: 6px 14px;
  font-weight: 700;
  font-size: calc(16.5px * var(--font-zoom, 1));
  display: flex;
  align-items: center;
  gap: 8px;
}

.exampleblock .block-content,
.example-block .block-content {
  background: var(--example-body-bg);
  border: 1px solid var(--example-body-border);
  border-top: none;
  padding: 10px 14px;
  color: var(--example-body-color);
  font-size: calc(17px * var(--font-zoom, 1));
  line-height: 1.45;
  border-radius: 0 0 6px 6px;
}

/* Bloco Alerta / Complexidade Crítica */
.alertblock .block-title,
.alert-block .block-title {
  background: var(--alert-header-bg);
  color: var(--alert-header-color);
  padding: 6px 14px;
  font-weight: 700;
  font-size: calc(16.5px * var(--font-zoom, 1));
  display: flex;
  align-items: center;
  gap: 8px;
}

.alertblock .block-content,
.alert-block .block-content {
  background: var(--alert-body-bg);
  border: 1px solid var(--alert-body-border);
  border-top: none;
  padding: 10px 14px;
  color: var(--alert-body-color);
  font-size: calc(17px * var(--font-zoom, 1));
  line-height: 1.45;
  border-radius: 0 0 6px 6px;
}

/* ============================================================
   ESTILOS DE CONTEÚDO E TIPOGRAFIA
   ============================================================ */

.slide-body {
  flex: 1;
  font-size: calc(17.5px * var(--font-zoom, 1));
  line-height: 1.48;
  color: var(--text-main);
}

.slide-body p {
  margin: 6px 0;
}

.slide-body ul, .slide-body ol {
  margin: 6px 0 10px 22px;
  padding: 0;
}

.slide-body li {
  margin-bottom: 5px;
}

.boxed-result {
  display: inline-block;
  background: var(--warsaw-light);
  color: var(--warsaw-primary);
  border: 2px solid var(--warsaw-primary);
  border-radius: 6px;
  padding: 5px 14px;
  font-weight: 700;
  margin: 8px 0;
}
body.dark-mode .boxed-result {
  background: #10243d;
  color: #38bdf8;
  border-color: #38bdf8;
}

/* Tabelas estilo Booktabs */
.beamer-table-container {
  width: 100%;
  overflow-x: auto;
  margin: 8px 0;
}

.beamer-table {
  width: 100%;
  border-collapse: collapse;
  font-size: calc(15.5px * var(--font-zoom, 1));
  text-align: left;
}

.beamer-table th {
  border-top: 2px solid var(--text-main);
  border-bottom: 1.5px solid var(--text-main);
  padding: 6px 10px;
  font-weight: 700;
  background: rgba(0,0,0,0.03);
}
body.dark-mode .beamer-table th {
  background: rgba(255,255,255,0.05);
  border-color: #94a3b8;
}

.beamer-table td {
  padding: 6px 10px;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

.beamer-table tr:last-child td {
  border-bottom: 2px solid var(--text-main);
}
body.dark-mode .beamer-table tr:last-child td {
  border-bottom-color: #94a3b8;
}

.beamer-table .check {
  color: #16a34a;
  font-weight: bold;
}

/* ============================================================
   LAYOUTS: COLUNA ÚNICA (PADRÃO) E DUAS COLUNAS
   ============================================================ */

.two-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: start;
}

.two-cols-40-60 {
  display: grid;
  grid-template-columns: 4fr 6fr;
  gap: 16px;
  align-items: start;
}

.two-cols-60-40 {
  display: grid;
  grid-template-columns: 6fr 4fr;
  gap: 16px;
  align-items: start;
}

/* ============================================================
   PSEUDOCÓDIGO FORMATADO
   ============================================================ */

.code-container {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 6px;
  padding: 8px 12px;
  margin: 8px 0;
  font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', Courier, monospace;
  font-size: calc(14px * var(--font-zoom, 1));
  line-height: 1.4;
  overflow-x: auto;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.05);
}

.code-container ol {
  margin: 0;
  padding-left: 28px;
  color: var(--code-line-num);
}

.code-container li {
  margin: 0;
  padding-left: 4px;
}

.code-container li span {
  color: var(--code-var);
}

.code-kw {
  color: var(--code-keyword);
  font-weight: 700;
}

.code-comment {
  color: var(--code-comment);
  font-style: italic;
}

.code-num {
  color: var(--code-num);
  font-weight: 600;
}

/* ============================================================
   PAINÉIS DE SIMULAÇÃO E CANVAS DEMOS
   ============================================================ */

.demo-panel {
  background: var(--canvas-bg);
  border: 1px solid var(--canvas-border);
  border-radius: 8px;
  padding: 10px 14px;
  margin: 6px 0;
  box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}

.demo-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
}

.demo-btn {
  background: var(--warsaw-primary);
  color: white;
  border: none;
  border-radius: 4px;
  padding: 4px 10px;
  font-size: calc(12.5px * var(--font-zoom, 1));
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: all 0.15s ease;
}
.demo-btn:hover {
  background: var(--warsaw-secondary);
  transform: translateY(-1px);
}
.demo-btn.btn-secondary {
  background: #475569;
}
.demo-btn.btn-secondary:hover {
  background: #334155;
}
.demo-btn.btn-success {
  background: #16a34a;
}
.demo-btn.btn-success:hover {
  background: #15803d;
}
.demo-btn.btn-danger {
  background: #dc2626;
}
.demo-btn.btn-danger:hover {
  background: #b91c1c;
}

.demo-input {
  background: var(--slide-bg);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-radius: 4px;
  padding: 3px 8px;
  font-size: calc(12.5px * var(--font-zoom, 1));
  width: 70px;
}

.demo-canvas {
  width: 100%;
  background: var(--slide-bg);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  display: block;
}

.demo-status {
  margin-top: 8px;
  padding: 6px 10px;
  background: rgba(0,0,0,0.03);
  border-radius: 4px;
  font-size: calc(13px * var(--font-zoom, 1));
  color: var(--text-main);
  border-left: 3px solid var(--warsaw-accent);
}
body.dark-mode .demo-status {
  background: rgba(255,255,255,0.04);
}

.demo-metrics {
  display: flex;
  gap: 12px;
  font-size: calc(12px * var(--font-zoom, 1));
  font-weight: 600;
  color: var(--text-muted);
  margin-top: 4px;
}
.demo-metrics span {
  color: var(--text-main);
}

/* ============================================================
   EXERCÍCIOS E GABARITOS (COLLAPSIBLES)
   ============================================================ */

.toggle-solution-btn {
  background: var(--warsaw-light);
  color: var(--warsaw-primary);
  border: 1px solid var(--warsaw-accent);
  border-radius: 4px;
  padding: 5px 12px;
  font-size: calc(13.5px * var(--font-zoom, 1));
  font-weight: 600;
  cursor: pointer;
  margin: 8px 0;
  transition: all 0.2s ease;
}
.toggle-solution-btn:hover {
  background: var(--warsaw-primary);
  color: #ffffff;
}
body.dark-mode .toggle-solution-btn {
  background: #10243d;
  color: #38bdf8;
  border-color: #38bdf8;
}
body.dark-mode .toggle-solution-btn:hover {
  background: #38bdf8;
  color: #0b0f17;
}

.solution-box {
  display: none;
  background: var(--block-body-bg);
  border: 1px solid var(--block-body-border);
  border-radius: 6px;
  padding: 10px 14px;
  margin-top: 8px;
  animation: fadeIn 0.25s ease;
}
.solution-box.show {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   SLIDE DE TÍTULO / CAPA
   ============================================================ */

.title-slide {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  height: 100%;
  text-align: center;
}

.title-box {
  background: linear-gradient(135deg, var(--warsaw-primary) 0%, #0d2b52 100%);
  color: #ffffff;
  padding: 24px 32px;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.18);
  margin-bottom: 24px;
  max-width: 820px;
  width: 90%;
}

.title-box h1 {
  font-size: calc(30px * var(--font-zoom, 1));
  font-weight: 800;
  margin: 0 0 10px 0;
  color: #ffffff !important;
  line-height: 1.25;
}

.title-box .subtitle {
  font-size: calc(16.5px * var(--font-zoom, 1));
  color: #93c5fd;
  font-weight: 500;
}

.author-box {
  background: var(--slide-bg);
  border: 1px solid var(--border-color);
  padding: 16px 28px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
  max-width: 600px;
  width: 80%;
}

.author-name {
  font-size: calc(19px * var(--font-zoom, 1));
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 4px;
}

.institute-name {
  font-size: calc(14.5px * var(--font-zoom, 1));
  color: var(--text-muted);
  margin-bottom: 4px;
}

.date-tag {
  font-size: calc(13px * var(--font-zoom, 1));
  color: var(--warsaw-accent);
  font-weight: 600;
}

/* Grid de Roteiro (Sumário) */
.agenda-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-top: 10px;
}

.agenda-card {
  background: var(--canvas-bg);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--warsaw-primary);
  border-radius: 6px;
  padding: 8px 12px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.agenda-card:hover {
  transform: translateY(-2px);
  border-left-color: var(--warsaw-accent);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.agenda-num {
  font-size: calc(11px * var(--font-zoom, 1));
  font-weight: 700;
  color: var(--warsaw-accent);
  text-transform: uppercase;
}

.agenda-title {
  font-size: calc(14.5px * var(--font-zoom, 1));
  font-weight: 700;
  color: var(--text-main);
  margin: 2px 0;
}

.agenda-desc {
  font-size: calc(12.5px * var(--font-zoom, 1));
  color: var(--text-muted);
}