/* ==========================================================================
   UNIDAD 3: CUERPO, ESPACIO Y RELATO - DESIGN SYSTEM & STYLES
   Inspirado en diseño editorial museográfico contemporáneo y pedagogía artística
   ========================================================================== */

:root {
  /* Dark Theme Palette (Default) */
  --bg-main: #0c0f17;
  --bg-surface: #141a24;
  --bg-card: #1b2330;
  --bg-card-hover: #222d3d;
  --bg-subtle: #273447;
  --bg-glass: rgba(20, 26, 36, 0.85);

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.14);
  --border-glow: rgba(234, 88, 12, 0.3);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;
  --text-inverted: #0f172a;

  /* Accent & Curricular Dimensions */
  --accent-terracotta: #f97316; /* 7° Básico / Escultura blanda */
  --accent-terracotta-dark: #ea580c;
  --accent-terracotta-glow: rgba(249, 115, 22, 0.25);

  --accent-cyan: #06b6d4;       /* 8° Básico / Instalación espacial */
  --accent-cyan-dark: #0891b2;
  --accent-cyan-glow: rgba(6, 182, 212, 0.25);

  --eval-proceso: #38bdf8;     /* 40% Proceso */
  --eval-progreso: #fbbf24;    /* 30% Progreso */
  --eval-formativa: #a855f7;   /* Formativa */
  --eval-consolidado: #34d399; /* 30% Consolidado */

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;

  --font-display: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  --font-body: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --transition-smooth: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Light Theme Variables */
[data-theme="light"] {
  --bg-main: #f8fafc;
  --bg-surface: #ffffff;
  --bg-card: #f1f5f9;
  --bg-card-hover: #e2e8f0;
  --bg-subtle: #cbd5e1;
  --bg-glass: rgba(255, 255, 255, 0.88);

  --border-subtle: rgba(15, 23, 42, 0.08);
  --border-medium: rgba(15, 23, 42, 0.16);
  --border-glow: rgba(234, 88, 12, 0.2);

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-subtle: #64748b;
  --text-inverted: #ffffff;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
}

/* Base Reset & Typography */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
}

.app-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ==========================================================================
   MAIN HEADER & BRANDING
   ========================================================================== */

.main-header {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-medium);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.25rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
}

.badge-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  line-height: 1;
}

.badge-mineduc {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-unit {
  background: rgba(249, 115, 22, 0.15);
  color: #fb923c;
  border: 1px solid rgba(249, 115, 22, 0.3);
}

.badge-level {
  background: rgba(56, 189, 248, 0.15);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.header-title {
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.header-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Buttons & Interactive Elements */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.6rem 1.15rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-terracotta), var(--accent-terracotta-dark));
  color: #ffffff;
  box-shadow: 0 4px 14px var(--accent-terracotta-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--accent-terracotta-glow);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-medium);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--text-muted);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
}

.btn-ghost:hover {
  color: var(--text-main);
  background: var(--bg-card);
}

.btn-sm {
  font-size: 0.8rem;
  padding: 0.35rem 0.75rem;
}

.btn-lg {
  font-size: 1.05rem;
  padding: 0.8rem 1.6rem;
}

.btn-icon {
  width: 42px;
  height: 42px;
  padding: 0;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-medium);
}

.btn-icon:hover {
  background: var(--bg-card-hover);
}

.icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.icon-sun { display: none; }
[data-theme="light"] .icon-sun { display: block; }
[data-theme="light"] .icon-moon { display: none; }

/* ==========================================================================
   EVALUATION STRIP BAR (40 / 30 / 30)
   ========================================================================== */

.eval-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-card);
  border-top: 1px solid var(--border-subtle);
  padding: 0.6rem 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.eval-strip-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.35rem 0.5rem;
}

.eval-indicator {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.eval-indicator.pro { background-color: var(--eval-proceso); box-shadow: 0 0 10px var(--eval-proceso); }
.eval-indicator.prog { background-color: var(--eval-progreso); box-shadow: 0 0 10px var(--eval-progreso); }
.eval-indicator.form { background-color: var(--eval-formativa); box-shadow: 0 0 10px var(--eval-formativa); }
.eval-indicator.con { background-color: var(--eval-consolidado); box-shadow: 0 0 10px var(--eval-consolidado); }

.eval-meta {
  display: flex;
  flex-direction: column;
}

.eval-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-subtle);
  font-weight: 700;
}

.eval-val {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text-main);
}

.eval-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-left: 0.5rem;
  padding-left: 0.5rem;
  border-left: 1px solid var(--border-subtle);
}

.eval-divider {
  width: 1px;
  height: 24px;
  background: var(--border-medium);
}

/* ==========================================================================
   NAVIGATION TABS
   ========================================================================== */

.nav-tabs {
  display: flex;
  gap: 0.5rem;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0.75rem 2rem 0;
  width: 100%;
  overflow-x: auto;
  scrollbar-width: thin;
}

.nav-tab {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.25rem;
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-muted);
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  cursor: pointer;
  transition: var(--transition-smooth);
  white-space: nowrap;
}

.nav-tab:hover {
  color: var(--text-main);
  background: var(--bg-card);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.nav-tab.active {
  color: var(--accent-terracotta);
  border-bottom-color: var(--accent-terracotta);
  background: var(--bg-surface);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

/* ==========================================================================
   GLOBAL FILTER CONTROLS BAR
   ========================================================================== */

.filter-controls-bar {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  padding: 0.75rem 2rem;
}

.filter-controls-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.filter-lead {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
}

.grade-pills {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.pill-btn {
  background: var(--bg-card);
  color: var(--text-muted);
  border: 1px solid var(--border-medium);
  padding: 0.4rem 0.9rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.pill-btn:hover {
  color: var(--text-main);
  background: var(--bg-card-hover);
}

.pill-btn.active {
  background: var(--accent-terracotta);
  color: #ffffff;
  border-color: var(--accent-terracotta);
  box-shadow: 0 2px 10px var(--accent-terracotta-glow);
}

.pill-btn[data-filter="8"].active {
  background: var(--accent-cyan);
  border-color: var(--accent-cyan);
  box-shadow: 0 2px 10px var(--accent-cyan-glow);
}

/* ==========================================================================
   MAIN CONTENT VIEWS WRAPPER
   ========================================================================== */

.main-content {
  flex: 1;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem;
}

.view-panel {
  display: none;
  animation: fadeIn 0.3s ease;
}

.view-panel.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   VIEW 1: SESSIONS NAVIGATION
   ========================================================================== */

.sessions-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 2rem;
  align-items: start;
}

.sessions-sidebar {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 130px;
}

.sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.sidebar-header h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
}

.session-progress-pill {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  background: var(--bg-card);
  color: var(--accent-terracotta);
  border-radius: 9999px;
  border: 1px solid var(--border-medium);
}

.session-step-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.session-step-item {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  background: var(--bg-card);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.session-step-item:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-medium);
}

.session-step-item.active {
  background: var(--bg-surface);
  border-color: var(--accent-terracotta);
  box-shadow: 0 4px 14px var(--accent-terracotta-glow);
}

.step-num-bubble {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-subtle);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  font-weight: 700;
  flex-shrink: 0;
}

.session-step-item.active .step-num-bubble {
  background: var(--accent-terracotta);
  color: #ffffff;
}

.step-meta {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.step-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.3;
}

.step-weight-badge {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* Active Session Detail Card */
.session-detail-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: 2.25rem;
  box-shadow: var(--shadow-md);
}

.card-top-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
}

.card-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-terracotta);
}

.card-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.detail-session-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 1rem;
}

.meta-goal-banner {
  background: linear-gradient(135deg, rgba(249, 115, 22, 0.08), rgba(6, 182, 212, 0.08));
  border-left: 4px solid var(--accent-terracotta);
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-bottom: 2rem;
}

.meta-goal-banner h4 {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-terracotta);
  margin-bottom: 0.25rem;
  font-weight: 800;
}

.meta-goal-banner p {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
}

.section-block {
  margin-bottom: 2.25rem;
}

.section-block-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1rem;
  color: var(--text-main);
}

/* Objectives Grid (7° vs 8°) */
.objectives-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.obj-card {
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}

.obj-card.obj-7th {
  border-top: 3px solid var(--accent-terracotta);
}

.obj-card.obj-8th {
  border-top: 3px solid var(--accent-cyan);
}

.obj-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.obj-grade {
  font-weight: 800;
  font-size: 0.92rem;
}

.obj-oa-badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  background: var(--bg-subtle);
  color: var(--text-main);
}

.obj-card p {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* Evaluation Block */
.weighting-box {
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.weighting-badge {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-md);
  background: var(--bg-subtle);
  color: var(--eval-proceso);
  flex-shrink: 0;
}

.weighting-badge.badge-prog { color: var(--eval-progreso); }
.weighting-badge.badge-form { color: var(--eval-formativa); }
.weighting-badge.badge-con { color: var(--eval-consolidado); }

.weighting-content h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.weighting-content p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Reflection Prompts Block */
.prompts-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.prompt-col {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  border: 1px solid var(--border-subtle);
}

.prompt-col-title {
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.prompt-col.prompt-7th .prompt-col-title { color: var(--accent-terracotta); }
.prompt-col.prompt-8th .prompt-col-title { color: var(--accent-cyan); }

.prompt-item {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.prompt-item:last-child {
  margin-bottom: 0;
}

.prompt-q-mark {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  flex-shrink: 0;
}

.prompt-text {
  font-size: 0.92rem;
  font-style: italic;
  color: var(--text-main);
  line-height: 1.5;
}

/* Session Bottom Navigation Bar */
.session-nav-arrows {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
}

/* ==========================================================================
   VIEW 2: MULTIGRADE DIFFERENTIATOR (7° vs 8°)
   ========================================================================== */

.multigrade-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 2.5rem;
}

.multigrade-header h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.multigrade-header p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.split-comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.grade-column {
  display: flex;
  flex-direction: column;
}

.column-badge-top {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  text-align: center;
}

.grade-7-col .column-badge-top {
  background: var(--accent-terracotta);
  color: #ffffff;
}

.grade-8-col .column-badge-top {
  background: var(--accent-cyan);
  color: #ffffff;
}

.column-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-md);
  flex: 1;
}

.col-hero {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.concept-tag {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-subtle);
}

.col-hero h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0.35rem 0 0.75rem;
  color: var(--text-main);
}

.col-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.col-section {
  margin-bottom: 2rem;
}

.col-section h4 {
  font-size: 0.92rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-subtle);
  font-weight: 800;
  margin-bottom: 1rem;
}

.oa-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.oa-list li {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding-left: 1.25rem;
  position: relative;
}

.oa-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent-terracotta);
  font-weight: bold;
}

.grade-8-col .oa-list li::before {
  color: var(--accent-cyan);
}

.oa-list strong {
  color: var(--text-main);
}

.grade-timeline-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.timeline-item-row {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.65rem 0.85rem;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  font-size: 0.88rem;
}

.t-sess-pill {
  font-weight: 800;
  font-size: 0.75rem;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  background: var(--bg-subtle);
  color: var(--text-main);
  white-space: nowrap;
}

.tags-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
}

/* ==========================================================================
   VIEW 3: VISUAL REFERENCES
   ========================================================================== */

.references-header {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 2.5rem;
}

.references-header h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.references-header p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.references-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.ref-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.ref-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-glow);
  box-shadow: var(--shadow-lg);
}

.ref-visual-frame {
  height: 240px;
  background: var(--bg-card);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border-subtle);
}

.ref-artwork-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  display: block;
}

.ref-card:hover .ref-artwork-img {
  transform: scale(1.06);
}

.ref-zoom-hint {
  position: absolute;
  bottom: 0.75rem;
  right: 0.75rem;
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(6px);
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  border: 1px solid rgba(255, 255, 255, 0.15);
  pointer-events: none;
}

.ref-badge-top {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(15, 23, 42, 0.88);
  backdrop-filter: blur(8px);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: 9999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  z-index: 2;
}

.ref-source-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-md);
  font-size: 0.82rem;
  font-weight: 700;
  color: #ffffff;
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  text-decoration: none;
  transition: var(--transition-smooth);
  margin-top: 0.5rem;
  align-self: flex-start;
}

.ref-source-btn:hover {
  background: var(--accent-cyan);
  color: #ffffff;
  border-color: var(--accent-cyan);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--accent-cyan-glow);
}

.ref-card:not(.ref-cyan) .ref-source-btn:hover {
  background: var(--accent-terracotta);
  border-color: var(--accent-terracotta);
  box-shadow: 0 4px 12px var(--accent-terracotta-glow);
}

.ref-content {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.ref-artist {
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent-terracotta);
  margin-bottom: 0.25rem;
}

.ref-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.75rem;
}

.ref-source-line {
  font-size: 0.8rem;
  color: var(--text-subtle);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.ref-source-line a {
  color: var(--accent-cyan);
  text-decoration: none;
}

.ref-source-line a:hover {
  text-decoration: underline;
}

.ref-analysis-box {
  background: var(--bg-card);
  padding: 1rem;
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.ref-analysis-box strong {
  display: block;
  color: var(--text-main);
  margin-bottom: 0.35rem;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.ref-question-box {
  border-left: 3px solid var(--accent-terracotta);
  padding: 0.75rem 1rem;
  background: var(--bg-subtle);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-top: auto;
}

.ref-card.ref-cyan .ref-question-box {
  border-left-color: var(--accent-cyan);
}

.ref-question-box p {
  font-size: 0.88rem;
  font-style: italic;
  color: var(--text-main);
}

/* Synthesis Box */
.references-synthesis-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-md);
}

.synthesis-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.synthesis-header h3 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
}

.synthesis-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.syn-card {
  background: var(--bg-card);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
}

.syn-card h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--accent-terracotta);
}

.syn-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
}

/* ==========================================================================
   VIEW 4: CLASSROOM LIVE WORKSHOP MODE (90 MIN)
   ========================================================================== */

.classroom-container {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.classroom-timer-widget {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.timer-top-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}

.classroom-session-select-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  font-weight: 600;
}

.select-input {
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-medium);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font-body);
  outline: none;
  cursor: pointer;
}

.timer-phase-badge {
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.45rem 1rem;
  border-radius: 9999px;
  background: var(--bg-subtle);
  color: var(--accent-terracotta);
  border: 1px solid var(--border-glow);
}

.timer-display-area {
  margin-bottom: 2.5rem;
}

.time-readout {
  font-family: var(--font-display);
  font-size: 7rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--text-main);
  text-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
  margin-bottom: 1.5rem;
  font-variant-numeric: tabular-nums;
}

.timer-controls {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.phases-bar-wrapper {
  margin-top: 2rem;
}

.phase-bar-track {
  display: flex;
  height: 38px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-medium);
}

.phase-segment {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-muted);
  border-right: 1px solid var(--border-subtle);
  transition: var(--transition-smooth);
}

.phase-segment.active {
  background: var(--accent-terracotta);
  color: #ffffff;
  box-shadow: inset 0 0 15px rgba(0,0,0,0.2);
}

.phase-segment:last-child {
  border-right: none;
}

/* Stage Reflection Cards */
.prompts-stage {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.stage-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-md);
}

.stage-card-badge {
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.stage-card.grade-7-stage .stage-card-badge { color: var(--accent-terracotta); }
.stage-card.grade-8-stage .stage-card-badge { color: var(--accent-cyan); }

.stage-card h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.stage-q-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.stage-q-box {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  font-size: 1.1rem;
  line-height: 1.5;
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
}

.closure-highlight-card {
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.1), rgba(168, 85, 247, 0.1));
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-xl);
  padding: 2rem;
}

.closure-badge {
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--eval-consolidado);
  margin-bottom: 1.25rem;
}

.closure-questions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.cq-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.cq-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--eval-consolidado);
  color: #0f172a;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  flex-shrink: 0;
}

.cq-item p {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
}

/* ==========================================================================
   VIEW 5: CURATORIAL PLAQUE GENERATOR
   ========================================================================== */

.curatorial-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.5rem;
  align-items: start;
}

.curatorial-form-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: 2.25rem;
  box-shadow: var(--shadow-md);
}

.form-header {
  margin-bottom: 1.75rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
}

.form-header h2 {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.form-header p {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.sample-presets {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  font-size: 0.82rem;
  color: var(--text-subtle);
}

.curatorial-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-row {
  display: flex;
  gap: 1rem;
}

.col-6 {
  flex: 1;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
}

.form-input {
  width: 100%;
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-medium);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.92rem;
  outline: none;
  transition: var(--transition-smooth);
}

.form-input:focus {
  border-color: var(--accent-terracotta);
  box-shadow: 0 0 0 3px var(--accent-terracotta-glow);
}

textarea.form-input {
  resize: vertical;
  line-height: 1.5;
}

.form-actions {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

/* Museum Plaque Preview Area */
.curatorial-preview-area {
  position: sticky;
  top: 120px;
}

.preview-title-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.preview-lead {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-subtle);
}

.format-tag {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--accent-terracotta);
  border: 1px solid var(--border-subtle);
}

.museum-wall-display {
  background: linear-gradient(145deg, #2a2f3a, #1a1e27);
  padding: 2.5rem;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-medium);
  box-shadow: var(--shadow-lg);
  display: flex;
  justify-content: center;
}

[data-theme="light"] .museum-wall-display {
  background: linear-gradient(145deg, #e2e8f0, #cbd5e1);
}

.museum-plaque-card {
  width: 100%;
  max-width: 480px;
  background: #ffffff;
  color: #1a1a1a;
  padding: 2.25rem;
  border-radius: 4px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3), 0 1px 3px rgba(0, 0, 0, 0.1);
  border: 1px solid #e5e5e5;
  position: relative;
  font-family: var(--font-body);
}

.plaque-top-deco {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #737373;
  font-weight: 700;
  margin-bottom: 1.25rem;
}

.plaque-artwork-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1.2;
  color: #111111;
  margin-bottom: 0.35rem;
}

.plaque-artist-line {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 1.25rem;
}

.artist-name {
  font-size: 1.05rem;
  font-weight: 600;
  color: #333333;
}

.artist-grade {
  font-size: 0.8rem;
  font-weight: 600;
  color: #e05d1c;
}

.plaque-divider {
  border: none;
  border-top: 1px solid #e5e5e5;
  margin-bottom: 1.25rem;
}

.plaque-field {
  margin-bottom: 1.15rem;
}

.plaque-subhead {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 800;
  color: #555555;
  margin-bottom: 0.25rem;
}

.plaque-text {
  font-size: 0.88rem;
  color: #262626;
  line-height: 1.5;
}

.plaque-footer-stamp {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px dashed #d4d4d4;
  text-align: right;
  font-size: 0.7rem;
  font-weight: 700;
  color: #888888;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ==========================================================================
   VIEW 6: EVALUATION MATRIX & CALCULATOR
   ========================================================================== */

.calculator-layout {
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.matrix-overview h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.matrix-overview p {
  color: var(--text-muted);
  max-width: 900px;
  margin-bottom: 2rem;
  font-size: 1.05rem;
}

.rubric-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.rubric-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: 1.75rem;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
}

.rubric-card.border-pro { border-top: 4px solid var(--eval-proceso); }
.rubric-card.border-prog { border-top: 4px solid var(--eval-progreso); }
.rubric-card.border-con { border-top: 4px solid var(--eval-consolidado); }

.rubric-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.rubric-pct {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  color: var(--text-main);
}

.rubric-header h3 {
  font-size: 1.15rem;
  font-weight: 700;
}

.rubric-checklist {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex: 1;
}

.rubric-checklist li {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.rubric-checklist strong {
  color: var(--text-main);
  display: block;
  margin-bottom: 0.15rem;
}

.rubric-footer {
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-subtle);
  text-transform: uppercase;
}

/* Calculator Interactive Card */
.calculator-interactive-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
}

.calc-top {
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
}

.calc-top h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.calc-top p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.calc-inputs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.calc-group-box {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.calc-group-box h4 {
  font-size: 0.92rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1.25rem;
  color: var(--text-main);
}

.input-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  gap: 1rem;
}

.input-row:last-child {
  margin-bottom: 0;
}

.input-row label {
  font-size: 0.86rem;
  color: var(--text-muted);
  font-weight: 600;
}

.grade-input {
  width: 70px;
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  color: var(--text-main);
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 700;
  text-align: center;
  font-family: var(--font-body);
  outline: none;
}

.grade-input:focus {
  border-color: var(--accent-terracotta);
}

.badge-formative {
  background: rgba(168, 85, 247, 0.15);
  color: #c084fc;
  border: 1px solid rgba(168, 85, 247, 0.3);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-sm);
}

/* Calculation Output Bar */
.calc-results-bar {
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 1.75rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.result-box {
  display: flex;
  flex-direction: column;
}

.res-label {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-subtle);
  margin-bottom: 0.25rem;
}

.res-num {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-main);
}

.res-plus, .res-equals {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-subtle);
}

.final-grade-box {
  background: linear-gradient(135deg, var(--accent-terracotta), var(--accent-terracotta-dark));
  padding: 1.25rem 2rem;
  border-radius: var(--radius-lg);
  color: #ffffff;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: 0 6px 20px var(--accent-terracotta-glow);
}

.final-lead {
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.9;
}

.final-score {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.1;
}

.final-badge {
  font-size: 0.8rem;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.2);
  padding: 0.2rem 0.6rem;
  border-radius: 9999px;
  margin-top: 0.35rem;
}

/* ==========================================================================
   MAIN FOOTER
   ========================================================================== */

.main-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-medium);
  padding: 2rem;
  margin-top: 4rem;
  text-align: center;
}

.footer-inner {
  max-width: 800px;
  margin: 0 auto;
}

.footer-inner p {
  font-size: 0.92rem;
  color: var(--text-muted);
}

.footer-sub {
  font-size: 0.82rem !important;
  color: var(--text-subtle) !important;
  margin-top: 0.35rem;
}

/* ==========================================================================
   PRINT STYLES FOR CÉDULA CURATORIAL
   ========================================================================== */

@media print {
  body {
    background: #ffffff !important;
    color: #000000 !important;
  }

  .main-header,
  .nav-tabs,
  .filter-controls-bar,
  .curatorial-form-card,
  .preview-title-bar,
  .main-footer,
  #view-sessions,
  #view-multigrade,
  #view-references,
  #view-classroom,
  #view-calculator {
    display: none !important;
  }

  #view-curatorial {
    display: block !important;
  }

  .curatorial-layout {
    grid-template-columns: 1fr !important;
  }

  .curatorial-preview-area {
    position: static !important;
  }

  .museum-wall-display {
    background: none !important;
    border: none !important;
    padding: 0 !important;
    box-shadow: none !important;
  }

  .museum-plaque-card {
    border: 1px solid #999999 !important;
    box-shadow: none !important;
    max-width: 100% !important;
    page-break-inside: avoid;
  }
}

/* ==========================================================================
   RESPONSIVE DESIGN (TABLET & MOBILE)
   ========================================================================== */

@media (max-width: 1024px) {
  .sessions-layout {
    grid-template-columns: 1fr;
  }

  .sessions-sidebar {
    position: static;
  }

  .split-comparison-grid,
  .prompts-stage,
  .curatorial-layout,
  .rubric-cards-grid,
  .calc-inputs-grid,
  .synthesis-grid,
  .closure-questions {
    grid-template-columns: 1fr;
  }

  .objectives-grid,
  .prompts-container {
    grid-template-columns: 1fr;
  }

  .calc-results-bar {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }

  .res-plus, .res-equals {
    display: none;
  }
}

@media (max-width: 640px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .eval-strip {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .eval-divider {
    display: none;
  }

  .time-readout {
    font-size: 4.5rem;
  }

  .main-content {
    padding: 1rem;
  }
}