/* ================================================
   SESIÓN 12 — Programación con IA: Python
   Paleta: Python blue #3776AB + Python yellow #FFD43B
   Code theme: Catppuccin Mocha
================================================ */

/* ---- Python branding ---- */

.py-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: #eff6ff;
  color: #1d4ed8;
  border: 1px solid #3776AB;
  border-radius: 999px;
  padding: 0.15rem 0.6rem;
}

.py-logo {
  height: 22px;
  vertical-align: middle;
}

.py-logo-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.85rem;
}

/* ---- Progression bar (usuario → constructor) ---- */

.py-progression {
  display: flex;
  align-items: center;
  gap: 0;
  margin: 1.2rem 0;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.py-prog-step {
  flex: 1;
  min-width: 100px;
  background: #f8fafc;
  border: 1.5px solid #e2e8f0;
  border-radius: 14px;
  padding: 0.75rem 0.85rem;
  text-align: center;
  transition: border-color 0.2s, background 0.2s;
}

.py-prog-step.active {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border-color: #3776AB;
}

.py-prog-step-icon {
  font-size: 1.4rem;
  display: block;
  margin-bottom: 0.3rem;
}

.py-prog-step-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: #1f2937;
  display: block;
  margin-bottom: 0.15rem;
}

.py-prog-step-desc {
  font-size: 0.7rem;
  color: #64748b;
  line-height: 1.4;
}

.py-prog-step.active .py-prog-step-label {
  color: #1d4ed8;
}

.py-prog-arrow {
  color: #94a3b8;
  font-size: 1.1rem;
  flex-shrink: 0;
  padding: 0 0.1rem;
}

@media (max-width: 540px) {
  .py-prog-arrow { display: none; }
  .py-prog-step { min-width: 80px; }
}

/* ================================================
   COLAB WINDOW MOCKUP
================================================ */

.colab-window {
  background: #fff;
  border: 1.5px solid #e2e8f0;
  border-radius: 18px;
  overflow: hidden;
  margin: 1.2rem 0;
  box-shadow: 0 8px 28px rgba(55, 118, 171, 0.1);
}

.colab-topbar {
  background: #f8f9fa;
  border-bottom: 1px solid #e2e8f0;
  padding: 0.5rem 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.colab-topbar-dots {
  display: flex;
  gap: 0.28rem;
  flex-shrink: 0;
}

.colab-topbar-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: block;
}

.colab-topbar-dots span:nth-child(1) { background: #fca5a5; }
.colab-topbar-dots span:nth-child(2) { background: #fde68a; }
.colab-topbar-dots span:nth-child(3) { background: #86efac; }

.colab-logo-img {
  width: 22px;
  height: 22px;
  object-fit: contain;
  border-radius: 4px;
  flex-shrink: 0;
}

.colab-filename {
  font-size: 0.78rem;
  font-weight: 600;
  color: #374151;
  flex: 1;
}

.colab-ram-badge {
  font-size: 0.65rem;
  font-weight: 700;
  background: #ecfdf5;
  color: #059669;
  border: 1px solid #6ee7b7;
  border-radius: 6px;
  padding: 0.12rem 0.45rem;
  flex-shrink: 0;
}

.colab-toolbar {
  display: flex;
  gap: 0.35rem;
  padding: 0.4rem 0.9rem;
  border-bottom: 1px solid #f1f5f9;
  background: #fdfdfd;
  overflow-x: auto;
}

.colab-toolbar-btn {
  font-size: 0.72rem;
  color: #64748b;
  background: none;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 0.2rem 0.5rem;
  cursor: default;
  white-space: nowrap;
}

.colab-toolbar-btn:hover {
  background: #f1f5f9;
  border-color: #e2e8f0;
}

.colab-body {
  padding: 0.6rem 0;
}

.colab-cell {
  display: flex;
  align-items: stretch;
  border-left: 3px solid transparent;
  margin: 0.2rem 0.6rem;
  border-radius: 8px;
  overflow: hidden;
}

.colab-cell:hover {
  border-left-color: #3776AB;
}

.colab-cell-gutter {
  display: flex;
  align-items: flex-start;
  padding: 0.55rem 0.45rem 0.55rem 0.3rem;
  flex-shrink: 0;
}

.colab-run-btn {
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 50%;
  background: #3776AB;
  color: #fff;
  border: none;
  font-size: 0.58rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: default;
  flex-shrink: 0;
  padding-left: 2px;
}

.colab-cell-content {
  flex: 1;
  background: #1e1e2e;
  border-radius: 8px;
  padding: 0.7rem 0.85rem;
}

.colab-cell-content pre {
  margin: 0;
  font-family: "Courier New", monospace;
  font-size: 0.82rem;
  line-height: 1.65;
  color: #cdd6f4;
  white-space: pre;
  overflow-x: auto;
}

.colab-output {
  margin: 0.1rem 0.6rem 0.3rem 3.7rem;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 0 0 8px 8px;
  padding: 0.5rem 0.8rem;
}

.colab-output-line {
  font-family: "Courier New", monospace;
  font-size: 0.82rem;
  color: #334155;
  line-height: 1.55;
}

.colab-output-line.error {
  color: #dc2626;
}

.colab-text-cell {
  margin: 0.2rem 0.6rem 0.2rem 3.7rem;
  padding: 0.55rem 0.85rem;
  border-left: 3px solid #FFD43B;
  background: #fffbeb;
  border-radius: 0 8px 8px 0;
}

.colab-text-cell p {
  margin: 0;
  font-size: 0.82rem;
  color: #374151;
  line-height: 1.6;
}

.colab-add-cell {
  display: flex;
  gap: 0.6rem;
  justify-content: center;
  padding: 0.65rem;
  border-top: 1px solid #f1f5f9;
}

.colab-add-btn {
  font-size: 0.72rem;
  color: #64748b;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 6px;
  padding: 0.25rem 0.75rem;
  cursor: default;
}

/* ================================================
   CONCEPT CARDS (4 piezas de Python)
================================================ */

.py-concept-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.9rem;
  margin: 1.2rem 0;
}

.py-concept-card {
  background: #ffffff;
  border: 1.5px solid #e2e8f0;
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(55, 118, 171, 0.07);
  display: flex;
  flex-direction: column;
}

.py-concept-card-top {
  padding: 0.85rem 0.9rem 0.6rem;
}

.py-concept-kicker {
  display: inline-block;
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: #eff6ff;
  color: #3776AB;
  border: 1px solid #bfdbfe;
  border-radius: 999px;
  padding: 0.12rem 0.5rem;
  margin-bottom: 0.4rem;
}

.py-concept-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: #1f2937;
  margin: 0 0 0.35rem;
}

.py-concept-desc {
  font-size: 0.79rem;
  color: #475569;
  line-height: 1.6;
  margin: 0;
}

.py-concept-code {
  background: #1e1e2e;
  padding: 0.7rem 0.9rem;
  margin-top: auto;
}

.py-concept-code pre {
  margin: 0;
  font-family: "Courier New", monospace;
  font-size: 0.78rem;
  line-height: 1.6;
  color: #cdd6f4;
  white-space: pre;
  overflow-x: auto;
}

.py-concept-output {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.9rem 0.65rem;
  background: #1e1e2e;
  border-top: 1px solid #313244;
}

.py-concept-output-label {
  font-size: 0.62rem;
  font-weight: 700;
  color: #a6e3a1;
  font-family: "Courier New", monospace;
  flex-shrink: 0;
}

.py-concept-output-text {
  font-family: "Courier New", monospace;
  font-size: 0.78rem;
  color: #cdd6f4;
  opacity: 0.85;
}

/* ================================================
   CODE ANNOTATOR (interactive)
================================================ */

.ca-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  margin: 1.2rem 0;
  align-items: start;
}

.code-annotator {
  background: #1e1e2e;
  border-radius: 16px;
  overflow: hidden;
  border: 1.5px solid #313244;
}

.ca-header {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.6rem 0.9rem;
  background: #181825;
  border-bottom: 1px solid #313244;
}

.ca-dots {
  display: flex;
  gap: 0.28rem;
  flex-shrink: 0;
}

.ca-dots span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: block;
}

.ca-dots span:nth-child(1) { background: #f38ba8; }
.ca-dots span:nth-child(2) { background: #f9e2af; }
.ca-dots span:nth-child(3) { background: #a6e3a1; }

.ca-filename {
  font-family: "Courier New", monospace;
  font-size: 0.72rem;
  color: #a6adc8;
  font-weight: 600;
  flex: 1;
}

.ca-hint {
  font-size: 0.65rem;
  color: #6c7086;
  font-style: italic;
}

.ca-body {
  padding: 0.5rem 0;
}

.code-line {
  display: flex;
  align-items: stretch;
  cursor: pointer;
  transition: background 0.12s;
  border-left: 3px solid transparent;
}

.code-line:hover {
  background: rgba(137, 180, 250, 0.06);
  border-left-color: #3776AB;
}

.code-line.is-active {
  background: rgba(137, 180, 250, 0.12);
  border-left-color: #FFD43B;
}

.ln {
  width: 2.4rem;
  flex-shrink: 0;
  font-family: "Courier New", monospace;
  font-size: 0.75rem;
  color: #6c7086;
  text-align: right;
  padding: 0.28rem 0.65rem 0.28rem 0;
  user-select: none;
  line-height: 1.6;
}

.code-text {
  flex: 1;
  font-family: "Courier New", monospace;
  font-size: 0.82rem;
  line-height: 1.6;
  color: #cdd6f4;
  padding: 0.28rem 0.9rem 0.28rem 0;
  white-space: pre;
  overflow-x: auto;
}

/* Syntax highlight classes */
.cc { color: #7f849c; font-style: italic; }   /* comment */
.ck { color: #cba6f7; }                         /* keyword */
.cs { color: #a6e3a1; }                         /* string */
.cf { color: #89b4fa; }                         /* function */
.cn { color: #fab387; }                         /* number */
.co { color: #89dceb; }                         /* operator */
.cv { color: #cdd6f4; }                         /* variable */
.cm { color: #f9e2af; }                         /* method/attr */

.ca-output {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.5rem 0.9rem;
  background: #181825;
  border-top: 1px solid #313244;
}

.ca-output-label {
  font-family: "Courier New", monospace;
  font-size: 0.68rem;
  font-weight: 700;
  color: #a6e3a1;
  flex-shrink: 0;
}

.ca-output-text {
  font-family: "Courier New", monospace;
  font-size: 0.82rem;
  color: #cdd6f4;
}

/* ---- Note panel (right column) ---- */

.ca-note-panel {
  background: #f8fafc;
  border: 1.5px solid #e2e8f0;
  border-radius: 16px;
  padding: 1rem 1.05rem;
  min-height: 120px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  transition: border-color 0.2s;
}

.ca-note-panel.has-content {
  border-color: #FFD43B;
  background: #fffbeb;
}

.ca-note-line-num {
  display: inline-block;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #d97706;
  margin-bottom: 0.5rem;
}

.ca-note-panel p {
  font-size: 0.82rem;
  color: #374151;
  line-height: 1.7;
  margin: 0;
}

.ca-note-placeholder {
  font-size: 0.8rem;
  color: #94a3b8;
  text-align: center;
  line-height: 1.5;
}

.ca-note-placeholder span {
  display: block;
  font-size: 1.4rem;
  margin-bottom: 0.4rem;
}

/* ================================================
   IA COMO COPILOTO — 3 modos
================================================ */

.copilot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.9rem;
  margin: 1.2rem 0;
}

.copilot-card {
  border-radius: 18px;
  padding: 1rem 1.05rem;
  border: 1.5px solid;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.copilot-card-safe    { background: #f0fdf4; border-color: #86efac; }
.copilot-card-debug   { background: #eff6ff; border-color: #93c5fd; }
.copilot-card-gen     { background: #fffbeb; border-color: #fde68a; }

.copilot-tag {
  display: inline-block;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 999px;
  padding: 0.12rem 0.5rem;
}

.copilot-card-safe  .copilot-tag { background: #dcfce7; color: #166534; }
.copilot-card-debug .copilot-tag { background: #dbeafe; color: #1e40af; }
.copilot-card-gen   .copilot-tag { background: #fef9c3; color: #92400e; }

.copilot-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: #1f2937;
  margin: 0;
}

.copilot-desc {
  font-size: 0.8rem;
  color: #475569;
  line-height: 1.65;
  margin: 0;
}

.copilot-prompt {
  font-family: "Courier New", monospace;
  font-size: 0.76rem;
  color: #334155;
  background: rgba(255,255,255,0.7);
  border-radius: 8px;
  padding: 0.45rem 0.6rem;
  margin-top: 0.25rem;
  line-height: 1.5;
  border: 1px solid rgba(0,0,0,0.07);
  overflow-wrap: break-word;
  word-break: break-word;
}

/* ================================================
   BROKEN CODE — actividad
================================================ */

.py-broken-wrap {
  margin: 1.2rem 0;
}

.py-broken-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 0.4rem;
}

.py-broken-label {
  display: inline-block;
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: #fef2f2;
  color: #dc2626;
  border: 1px solid #fecaca;
  border-radius: 999px;
  padding: 0.15rem 0.6rem;
}

.py-reveal-btn {
  font-size: 0.78rem;
  font-weight: 700;
  color: #3776AB;
  background: #eff6ff;
  border: 1.5px solid #3776AB;
  border-radius: 8px;
  padding: 0.3rem 0.85rem;
  cursor: pointer;
  transition: background 0.15s;
}

.py-reveal-btn:hover {
  background: #dbeafe;
}

.py-error-output {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  background: #1e1e2e;
  border-top: 1px solid #313244;
  padding: 0.5rem 0.9rem;
}

.py-error-label {
  font-family: "Courier New", monospace;
  font-size: 0.68rem;
  font-weight: 700;
  color: #f38ba8;
  flex-shrink: 0;
}

.py-error-text {
  font-family: "Courier New", monospace;
  font-size: 0.8rem;
  color: #f38ba8;
  line-height: 1.5;
}

.py-bug-reveal {
  background: #fffbeb;
  border: 1.5px solid #fde68a;
  border-radius: 12px;
  padding: 0.85rem 1rem;
  margin-top: 0.65rem;
  display: none;
}

.py-bug-reveal-kicker {
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #d97706;
  display: block;
  margin-bottom: 0.4rem;
}

.py-bug-reveal p {
  font-size: 0.82rem;
  color: #374151;
  line-height: 1.65;
  margin: 0 0 0.3rem;
}

.py-bug-reveal p:last-child { margin-bottom: 0; }

/* ================================================
   ROUTE CARDS — rutas para seguir
================================================ */

.route-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.9rem;
  margin: 1.2rem 0;
}

.route-card {
  background: #fff;
  border: 1.5px solid #e2e8f0;
  border-radius: 18px;
  padding: 1rem 1.05rem;
  box-shadow: 0 4px 16px rgba(0,0,0,0.05);
  transition: box-shadow 0.2s, border-color 0.2s;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.route-card:hover {
  box-shadow: 0 6px 22px rgba(55, 118, 171, 0.12);
  border-color: #3776AB;
}

.route-card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.2rem;
}

.route-logo {
  height: 28px;
  width: auto;
  max-width: 60px;
  object-fit: contain;
  border-radius: 4px;
  flex-shrink: 0;
}

.route-logo-emoji {
  font-size: 1.4rem;
  flex-shrink: 0;
}

.route-name {
  font-size: 0.9rem;
  font-weight: 700;
  color: #1f2937;
  margin: 0;
}

.route-org {
  font-size: 0.7rem;
  color: #64748b;
  margin: 0;
}

.route-desc {
  font-size: 0.79rem;
  color: #475569;
  line-height: 1.6;
  margin: 0;
  flex: 1;
}

.route-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-top: 0.2rem;
}

.route-tag {
  font-size: 0.63rem;
  font-weight: 700;
  border-radius: 999px;
  padding: 0.1rem 0.45rem;
}

.route-tag-free     { background: #f0fdf4; color: #16a34a; border: 1px solid #86efac; }
.route-tag-es       { background: #eff6ff; color: #1d4ed8; border: 1px solid #93c5fd; }
.route-tag-beginner { background: #faf5ff; color: #7c3aed; border: 1px solid #d8b4fe; }
.route-tag-browser  { background: #f8fafc; color: #475569; border: 1px solid #e2e8f0; }

/* ================================================
   ML OUTPUT ANNOTATION BLOCK
================================================ */

.ml-output-wrap {
  border: 1.5px solid #e2e8f0;
  border-radius: 16px;
  overflow: hidden;
  margin: 0.8rem 0 1.2rem;
}

.ml-output-header {
  background: #f1f5f9;
  border-bottom: 1px solid #e2e8f0;
  padding: 0.4rem 0.9rem;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #64748b;
}

.ml-output-block {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  border-bottom: 1px solid #f1f5f9;
}

.ml-output-block:last-child {
  border-bottom: none;
}

.ml-output-raw {
  background: #1e1e2e;
  padding: 0.75rem 0.9rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid #313244;
}

.ml-output-line {
  font-family: "Courier New", monospace;
  font-size: 0.78rem;
  color: #cdd6f4;
  line-height: 1.7;
  display: block;
  white-space: pre;
}

.ml-output-note {
  background: #fffbeb;
  padding: 0.75rem 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.ml-note-label {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #d97706;
  display: block;
}

.ml-output-note p,
.ml-output-note {
  font-size: 0.79rem;
  color: #374151;
  line-height: 1.65;
  margin: 0;
}

@media (max-width: 640px) {
  .ml-output-block {
    grid-template-columns: 1fr;
  }
  .ml-output-raw {
    border-right: none;
    border-bottom: 1px solid #313244;
  }
  .ml-output-raw .ml-output-line {
    white-space: pre-wrap;
    word-break: break-all;
  }
}

/* ================================================
   TRAIN / TEST SPLIT VISUALIZER
================================================ */

.split-vis {
  margin: 1.2rem 0;
}

.split-vis-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: #64748b;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.55rem;
  display: block;
}

.split-bar {
  display: flex;
  height: 52px;
  border-radius: 14px;
  overflow: hidden;
  border: 1.5px solid #e2e8f0;
}

.split-train {
  width: 75%;
  background: linear-gradient(90deg, #3776AB 0%, #4a9fd4 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0 0.8rem;
  text-align: center;
}

.split-test {
  width: 25%;
  background: linear-gradient(90deg, #FFD43B 0%, #f59e0b 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #1e3a5f;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0 0.5rem;
  text-align: center;
}

.split-legend {
  display: flex;
  gap: 1.5rem;
  margin-top: 0.7rem;
  flex-wrap: wrap;
}

.split-legend-item {
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
  font-size: 0.78rem;
  color: #475569;
  line-height: 1.5;
}

.split-legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 3px;
}

.split-legend-dot.train { background: #3776AB; }
.split-legend-dot.test  { background: #FFD43B; border: 1px solid #d97706; }

/* ================================================
   RESPONSIVE OVERRIDES
================================================ */

@media (max-width: 640px) {
  .py-concept-grid,
  .copilot-grid,
  .route-grid {
    grid-template-columns: 1fr;
  }

  .ca-wrap {
    grid-template-columns: 1fr;
  }

  .ca-hint { display: none; }
}