/* ==========================================================================
   🛡️ SISTEMA DE ESTILOS PREMIUM - PLATAFORMA LOCAL DE EXÁMENES SEGUROS
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;500;700&family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
  color-scheme: dark;
  /* Paleta de Colores HSL Curada */
  --bg-dark: hsl(225, 30%, 7%);
  --bg-panel: hsla(223, 25%, 12%, 0.8);
  --bg-input: hsl(223, 20%, 15%);
  --border-color: hsla(223, 15%, 25%, 0.4);
  --border-glow: hsla(180, 100%, 50%, 0.3);
  
  --text-main: hsl(210, 40%, 98%);
  --text-secondary: hsl(215, 20%, 75%);
  --text-muted: hsl(215, 12%, 50%);
  
  /* Acentos y Estados */
  --accent-cyan: hsl(180, 100%, 50%);
  --accent-purple: hsl(263, 90%, 65%);
  --color-success: hsl(145, 75%, 45%);
  --color-warning: hsl(35, 90%, 52%);
  --color-error: hsl(0, 85%, 60%);
  
  /* Efectos de Brillo y Sombra */
  --shadow-glow: 0 0 15px hsla(180, 100%, 50%, 0.15);
  --shadow-glow-red: 0 0 15px hsla(0, 85%, 60%, 0.2);
  --glass-filter: blur(12px) saturate(180%);
  
  /* Transiciones */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   ESTILOS GENERALES
   ========================================================================== */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-dark);
  background-image: 
    radial-gradient(at 10% 10%, hsla(263, 90%, 65%, 0.05) 0px, transparent 50%),
    radial-gradient(at 90% 90%, hsla(180, 100%, 50%, 0.04) 0px, transparent 50%);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  line-height: 1.5;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  letter-spacing: -0.02em;
}

/* ==========================================================================
   SCROLLBAR PERSONALIZADO
   ========================================================================== */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-cyan);
}

/* ==========================================================================
   COMPONENTES UI REUSABLES
   ========================================================================== */

.glass-panel {
  background: var(--bg-panel);
  backdrop-filter: var(--glass-filter);
  -webkit-backdrop-filter: var(--glass-filter);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-panel:hover {
  border-color: hsla(223, 15%, 35%, 0.6);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  outline: none;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  color: var(--bg-dark);
  font-weight: 600;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 20px hsla(180, 100%, 50%, 0.3);
  filter: brightness(1.1);
}

.btn-secondary {
  background: var(--bg-input);
  color: var(--text-main);
  border-color: var(--border-color);
}

.btn-secondary:hover {
  background: hsl(223, 20%, 20%);
  border-color: var(--text-muted);
}

.btn-danger {
  background: var(--color-error);
  color: var(--text-main);
  box-shadow: var(--shadow-glow-red);
}

.btn-danger:hover {
  transform: translateY(-2px);
  filter: brightness(1.1);
}

.btn:active {
  transform: translateY(0);
}

.input-field {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-main);
  font-family: inherit;
  font-size: 1rem;
  transition: all var(--transition-fast);
  outline: none;
}

.input-field:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 2px hsla(180, 100%, 50%, 0.15);
}

/* ==========================================================================
   PANTALLA DE ACCESO (LOGIN)
   ========================================================================== */

.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  width: 100%;
  padding: 20px;
  box-sizing: border-box;
}

.login-card {
  width: 100%;
  max-width: 440px;
  padding: 24px 30px;
  box-sizing: border-box;
  margin: auto;
  box-shadow: 0 15px 45px rgba(0, 0, 0, 0.4);
}

/* Overrides compactos para evitar scroll vertical en el login */
.login-card .brand {
  margin-bottom: 12px;
}

.login-card .brand-title {
  font-size: 1.6rem;
}

.login-card .brand-icon {
  width: 28px;
  height: 28px;
}

.login-card p {
  font-size: 0.85rem;
  margin-bottom: 12px !important;
}

.login-card .segment-control {
  margin-bottom: 12px !important;
}

.login-card .segment-btn {
  padding: 8px !important;
  font-size: 0.85rem;
}

.login-card .form-group {
  margin-bottom: 10px;
}

.login-card .form-group label {
  margin-bottom: 4px;
  font-size: 0.78rem;
}

.login-card .input-field {
  padding: 9px 12px;
  font-size: 0.9rem;
}

.login-card .btn {
  padding: 8px 16px;
  font-size: 0.9rem;
}

.login-card #active-exams-container {
  margin-top: 15px !important;
  padding-top: 12px !important;
}

.login-card #active-exams-student-list {
  max-height: 100px !important;
  gap: 8px !important;
}

@media (max-width: 480px) {
  .login-card {
    padding: 20px 18px;
  }
}

.brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 30px;
}

.brand-icon {
  color: var(--accent-cyan);
  filter: drop-shadow(var(--shadow-glow));
}

.brand-title {
  font-size: 1.8rem;
  background: linear-gradient(135deg, var(--text-main), var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.form-group {
  margin-bottom: 20px;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.select-field {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='white'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 16px;
  padding-right: 40px;
}

/* ==========================================================================
   INTERFAZ PRINCIPAL DEL ALUMNO (PORTAL)
   ========================================================================== */

header {
  height: 64px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 30px;
  background: hsla(225, 30%, 7%, 0.85);
  backdrop-filter: var(--glass-filter);
  -webkit-backdrop-filter: var(--glass-filter);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-left, .header-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.exam-info-badge {
  background: hsla(263, 90%, 65%, 0.15);
  border: 1px solid hsla(263, 90%, 65%, 0.3);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.85rem;
  color: var(--text-main);
}

.proctor-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  background: hsla(180, 100%, 50%, 0.08);
  border: 1px solid hsla(180, 100%, 50%, 0.2);
  padding: 6px 14px;
  border-radius: 30px;
}

.proctor-pulse {
  width: 8px;
  height: 8px;
  background-color: var(--accent-cyan);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-cyan);
  animation: pulse 1.5s infinite alternate;
}

.timer-box {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.1rem;
  font-weight: 700;
  font-family: 'Fira Code', monospace;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  padding: 6px 14px;
  border-radius: 8px;
}

.timer-warning {
  border-color: var(--color-error);
  color: var(--color-error);
  animation: pulse-border 1s infinite alternate;
}

/* ==========================================================================
   LAYOUT DEL EXAMEN (GRID PRINCIPAL)
   ========================================================================== */

.exam-layout {
  display: grid;
  grid-template-columns: 350px 1fr;
  height: calc(100vh - 70px);
  overflow: hidden;
}

/* Panel Izquierdo: Lista de Preguntas */
.sidebar-questions {
  border-right: 1px solid var(--border-color);
  background: hsla(225, 20%, 9%, 0.5);
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
  overflow: hidden;
}

.sidebar-header {
  padding: 20px;
  border-bottom: 1px solid var(--border-color);
}

.questions-list {
  flex: 1;
  overflow-y: auto !important;
  padding: 15px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 0;
}

.question-item {
  padding: 14px;
  border-radius: 10px;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  background: hsla(223, 20%, 15%, 0.3);
}

.question-item:hover {
  background: hsla(223, 20%, 15%, 0.6);
  border-color: var(--border-color);
}

.question-item.active {
  background: hsla(180, 100%, 50%, 0.05);
  border-color: hsla(180, 100%, 50%, 0.3);
  box-shadow: 0 2px 10px rgba(0, 240, 255, 0.05);
}

.q-status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--text-muted);
  margin-top: 5px;
  flex-shrink: 0;
}

.question-item.answered .q-status-dot {
  background-color: var(--color-success);
  box-shadow: 0 0 6px var(--color-success);
}

.q-item-info {
  display: flex;
  flex-direction: column;
}

.q-item-title {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-main);
  margin-bottom: 2px;
}

.q-item-type {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Contenedor de Pregunta Activa (Centro) */
.active-question-container {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  height: 100%;
  overflow: hidden;
}

/* Enunciado (Izquierda del centro) */
.question-details {
  padding: 20px;
  border-right: 1px solid var(--border-color);
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  height: 100%;
  overflow: hidden;
  box-sizing: border-box;
}

.q-title {
  font-size: 1.4rem;
  margin-bottom: 15px;
  background: linear-gradient(135deg, var(--text-main), var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.q-desc {
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.6;
  margin-bottom: 25px;
}

.q-body-container {
  overflow-y: auto;
  padding-right: 8px;
}

/* Opciones de Opción Múltiple */
.options-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 15px;
}

.option-card {
  padding: 16px;
  border-radius: 10px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 15px;
}

.option-card:hover {
  border-color: var(--accent-purple);
  background: hsl(223, 20%, 18%);
}

.option-card.selected {
  border-color: var(--accent-cyan);
  background: hsla(180, 100%, 50%, 0.04);
  box-shadow: var(--shadow-glow);
}

.option-radio {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.option-card.selected .option-radio {
  border-color: var(--accent-cyan);
}

.option-card.selected .option-radio::after {
  content: '';
  width: 10px;
  height: 10px;
  background-color: var(--accent-cyan);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--accent-cyan);
}

.option-text {
  font-size: 0.95rem;
  color: var(--text-main);
}

/* Casos de Prueba (Muestra) */
.sample-tests-box {
  margin-top: 25px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 20px;
}

.sample-tests-title {
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sample-test-case {
  background: var(--bg-dark);
  border-radius: 6px;
  padding: 12px;
  margin-top: 10px;
  font-family: 'Fira Code', monospace;
  font-size: 0.85rem;
  border-left: 3px solid var(--accent-purple);
}

.sample-test-label {
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-bottom: 4px;
}

/* Editor y Consola (Derecha del centro) */
.workspace-editor {
  display: grid;
  grid-template-rows: 40px minmax(0, 1fr);
  height: 100%;
  overflow: hidden;
  background: var(--bg-dark);
}

.editor-toolbar {
  background: hsla(225, 20%, 9%, 0.8);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  font-size: 0.85rem;
}

.editor-lang-indicator {
  color: var(--accent-cyan);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Contenedor del Editor de Código */
.code-editor-container {
  width: 100%;
  height: 100%;
  position: relative;
  overflow: hidden;
}

/* Fallback Textarea si Monaco no carga */
.fallback-textarea {
  width: 100%;
  height: 100%;
  background: #1e1e1e;
  color: #d4d4d4;
  border: none;
  font-family: 'Fira Code', 'Courier New', monospace;
  font-size: 14px;
  padding: 15px;
  resize: none;
  outline: none;
}

/* Consola de Resultados - Caja de Terminal Distintiva */
.console-container {
  border: 1.5px solid var(--border-color);
  background: #090d16;
  border-radius: 8px;
  margin: 15px 0 0 0;
  display: grid;
  grid-template-rows: 42px 1fr;
  height: 280px;
  overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.console-header {
  background: #0d1220;
  padding: 0 15px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1.5px solid var(--border-color);
}

.console-title {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-cyan);
  letter-spacing: 0.05em;
}

.console-body {
  padding: 12px 15px;
  overflow: hidden;
  font-family: 'Fira Code', monospace;
  font-size: 0.82rem;
  color: var(--text-main);
  background: #05070c;
  display: flex;
  flex-direction: column;
}

/* Botón destacado Ejecutar Pruebas */
#run-tests-btn {
  background: hsla(180, 100%, 50%, 0.12) !important;
  border: 1px solid var(--accent-cyan) !important;
  color: var(--accent-cyan) !important;
  font-weight: 700 !important;
  padding: 6px 14px !important;
  border-radius: 6px !important;
  box-shadow: 0 0 10px hsla(180, 100%, 50%, 0.2) !important;
  transition: all var(--transition-fast) !important;
}

#run-tests-btn:hover {
  background: var(--accent-cyan) !important;
  color: #000 !important;
  box-shadow: 0 0 16px hsla(180, 100%, 50%, 0.5) !important;
  transform: translateY(-1px);
}

.test-summary-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.console-test-row {
  background: var(--bg-dark);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-left: 4px solid var(--text-muted);
}

.console-test-row.passed {
  border-left-color: var(--color-success);
}

.console-test-row.failed {
  border-left-color: var(--color-error);
}

.test-row-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 600;
}

.test-badge {
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 4px;
  text-transform: uppercase;
}

.test-badge.passed {
  background: hsla(145, 75%, 45%, 0.15);
  color: var(--color-success);
}

.test-badge.failed {
  background: hsla(0, 85%, 60%, 0.15);
  color: var(--color-error);
}

.test-row-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  background: hsla(223, 20%, 7%, 0.5);
  padding: 8px;
  border-radius: 4px;
  font-size: 0.8rem;
}

.test-val-box {
  display: flex;
  flex-direction: column;
}

.test-val-label {
  color: var(--text-muted);
  font-size: 0.7rem;
  margin-bottom: 2px;
}

.test-val-content {
  color: var(--text-main);
  white-space: pre-wrap;
}

/* ==========================================================================
   SISTEMA DE SEGURIDAD Y PANTALLAS DE BLOQUEO
   ========================================================================== */

/* Overlay de Bloqueo por Advertencia (Fuera de Pantalla Completa) */
.lockdown-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(8, 10, 18, 0.95);
  backdrop-filter: blur(15px);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px;
  text-align: center;
}

.lockdown-card {
  max-width: 500px;
  padding: 40px;
  border: 2px solid var(--color-error);
  box-shadow: var(--shadow-glow-red);
  background: var(--bg-panel);
  border-radius: 20px;
}

.lockdown-icon {
  color: var(--color-error);
  font-size: 3rem;
  margin-bottom: 20px;
  animation: shake 0.5s cubic-bezier(.36,.07,.19,.97) both;
}

.lockdown-title {
  font-size: 1.6rem;
  color: var(--text-main);
  margin-bottom: 12px;
}

.lockdown-warning-text {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 25px;
  line-height: 1.5;
}

.lockdown-violations-count {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-warning);
  background: hsla(35, 90%, 52%, 0.1);
  padding: 6px 16px;
  border-radius: 30px;
  display: inline-block;
  margin-bottom: 30px;
  border: 1px solid hsla(35, 90%, 52%, 0.2);
}

.lockdown-violations-count.danger {
  color: var(--color-error);
  background: hsla(0, 85%, 60%, 0.1);
  border-color: hsla(0, 85%, 60%, 0.2);
}

/* PIP de la Cámara Web (Estudiante) - Integrada en el sidebar */
.webcam-pip {
  position: relative;
  margin: 15px auto;
  width: 180px;
  height: 135px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
  background-color: var(--bg-dark);
  overflow: hidden;
  z-index: 5;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.webcam-pip video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scaleX(-1); /* Espejo */
}

/* ==========================================================================
   INTERFAZ DEL PROFESOR (TEACHER DASHBOARD)
   ========================================================================== */

.teacher-layout {
  padding: 30px;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.teacher-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 20px;
}

.teacher-tabs {
  display: flex;
  align-items: center;
  gap: 12px;
}

.teacher-tab {
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.teacher-tab:hover {
  color: var(--text-main);
  background: hsla(223, 20%, 15%, 0.6);
  border-color: var(--border-color);
}

.teacher-tab.active {
  background: linear-gradient(135deg, hsla(180, 100%, 50%, 0.1), hsla(263, 90%, 65%, 0.1)) !important;
  color: var(--accent-cyan) !important;
  font-weight: 600;
  border: 1px solid var(--accent-cyan) !important;
  box-shadow: 0 0 15px hsla(180, 100%, 50%, 0.15) !important;
}

/* Vista 1: Monitoreo en Vivo (Grid) */
.monitor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.student-card {
  padding: 12px;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-left: 4px solid var(--text-muted);
}

.student-card.started {
  border-left-color: var(--color-success);
}

.student-card.warning {
  border-left-color: var(--color-warning);
}

.student-card.locked {
  border-left-color: var(--color-error);
  box-shadow: var(--shadow-glow-red);
}

.student-card.submitted {
  border-left-color: var(--accent-purple);
}

.student-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.student-name {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 170px;
}

.student-id {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.student-status-badge {
  font-size: 0.72rem;
  padding: 2px 6px;
  border-radius: 4px;
  text-transform: uppercase;
  font-weight: 600;
}

.student-status-badge.started {
  background: hsla(145, 75%, 45%, 0.1);
  color: var(--color-success);
}

.student-status-badge.warning {
  background: hsla(35, 90%, 52%, 0.1);
  color: var(--color-warning);
}

.student-status-badge.locked {
  background: hsla(0, 85%, 60%, 0.1);
  color: var(--color-error);
}

.student-status-badge.submitted {
  background: hsla(263, 90%, 65%, 0.1);
  color: var(--accent-purple);
}

/* Dashboard de Métricas Ultra-Compacto 2x2 */
.student-dashboard-metrics {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 6px;
  background: hsla(223, 20%, 7%, 0.4);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px;
  box-sizing: border-box;
}

.metric-item {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1px;
}

.metric-item.has-errors {
  background: hsla(0, 85%, 60%, 0.08);
  border: 1px solid hsla(0, 85%, 60%, 0.2);
  border-radius: 6px;
  padding: 2px 6px;
}

.m-label {
  font-size: 0.62rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.m-val {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.m-val.danger {
  color: var(--color-error);
  font-size: 0.88rem;
}

/* Caja compacta de registros de infracciones */
.compact-violations-list {
  font-size: 0.7rem;
  background: var(--bg-dark);
  padding: 6px 8px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  overflow-y: auto;
  max-height: 55px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-family: 'Fira Code', monospace;
  box-sizing: border-box;
}

.compact-violations-list div {
  white-space: pre-wrap;
  word-break: break-all;
  line-height: 1.3;
}

.v-time {
  color: var(--color-error);
  font-weight: 600;
}

.v-type {
  color: var(--color-warning);
  font-weight: 600;
}

.student-card-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-top: auto;
  border-top: 1px solid var(--border-color);
  padding-top: 10px;
}

.student-card-actions .btn {
  padding: 6px 8px !important;
  font-size: 0.74rem !important;
  font-weight: 600 !important;
  border-radius: 6px !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 4px !important;
  background: transparent !important;
  box-shadow: none !important;
  transition: all var(--transition-fast) !important;
}

.student-card-actions .btn:hover {
  filter: brightness(1.2);
  transform: translateY(-1px);
}

/* Consola de Logs del Profesor (En Vivo) */
.live-logs-container {
  display: flex;
  flex-direction: column;
  height: 350px;
  border: 1px solid var(--border-color);
  background: hsla(225, 20%, 5%, 0.95);
  border-radius: 12px;
  overflow: hidden;
}

.logs-header {
  padding: 12px 20px;
  background: hsla(225, 20%, 3%, 0.9);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logs-body {
  flex: 1;
  padding: 15px;
  overflow-y: auto;
  font-family: 'Fira Code', monospace;
  font-size: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.log-entry-row {
  display: flex;
  gap: 12px;
  line-height: 1.4;
  padding: 4px 8px;
  border-radius: 4px;
  border-left: 2px solid transparent;
}

.log-entry-row:hover {
  background: hsla(223, 20%, 15%, 0.2);
}

.log-time {
  color: var(--text-muted);
  flex-shrink: 0;
}

.log-student {
  font-weight: 600;
  color: var(--accent-cyan);
  flex-shrink: 0;
}

.log-action {
  font-weight: 700;
  flex-shrink: 0;
}

.log-details {
  color: var(--text-secondary);
}

/* Colores de logs por tipo */
.log-entry-row.type-success { border-left-color: var(--color-success); }
.log-entry-row.type-success .log-action { color: var(--color-success); }

.log-entry-row.type-warning { border-left-color: var(--color-warning); }
.log-entry-row.type-warning .log-action { color: var(--color-warning); }

.log-entry-row.type-alert { border-left-color: var(--color-warning); }
.log-entry-row.type-alert .log-action { color: var(--color-warning); }

.log-entry-row.type-error { border-left-color: var(--color-error); }
.log-entry-row.type-error .log-action { color: var(--color-error); }

/* Creador de Exámenes */
.creator-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
}

.exam-meta-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
}

.creator-question-box {
  padding: 25px;
  margin-top: 15px;
  display: flex;
  flex-direction: column;
  gap: 15px;
  position: relative;
}

.creator-question-box::before {
  content: 'Pregunta';
  position: absolute;
  top: -12px;
  left: 20px;
  background: var(--bg-dark);
  padding: 2px 10px;
  color: var(--accent-purple);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px solid var(--border-color);
  border-radius: 4px;
}

.q-creator-type-select {
  display: flex;
  gap: 10px;
  margin-bottom: 10px;
}

.test-cases-creator-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--bg-dark);
  padding: 15px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.test-case-creator-row {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 10px;
  align-items: center;
}

.multiple-choice-creator-box {
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--bg-dark);
  padding: 15px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
}

.mc-option-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: center;
}

/* ==========================================================================
   ANIMACIONES KEYFRAMES
   ========================================================================== */

@keyframes pulse {
  0% {
    transform: scale(0.9);
    opacity: 0.6;
    box-shadow: 0 0 4px var(--accent-cyan);
  }
  100% {
    transform: scale(1.1);
    opacity: 1;
    box-shadow: 0 0 12px var(--accent-cyan);
  }
}

@keyframes pulse-border {
  0% {
    border-color: hsla(0, 85%, 60%, 0.3);
    box-shadow: 0 0 0px var(--color-error);
  }
  100% {
    border-color: var(--color-error);
    box-shadow: 0 0 8px hsla(0, 85%, 60%, 0.3);
  }
}

@keyframes shake {
  10%, 90% { transform: translate3d(-1px, 0, 0); }
  20%, 80% { transform: translate3d(2px, 0, 0); }
  30%, 50%, 70% { transform: translate3d(-4px, 0, 0); }
  40%, 60% { transform: translate3d(4px, 0, 0); }
}

/* ==========================================================================
   🎛️ ADICIONES DE SUPERVISIÓN DOCENTE Y PROCTORING
   ========================================================================== */

/* Miniatura de pantalla del alumno en su tarjeta */
.student-screenshot-box {
  width: 100%;
  height: 95px;
  background: var(--bg-dark);
  border-radius: 8px;
  border: 1px solid var(--border-color);
  overflow: hidden;
  position: relative;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition-fast);
}

.student-screenshot-box:hover {
  border-color: var(--accent-cyan);
}

.student-screenshot-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.student-screenshot-placeholder {
  color: var(--text-muted);
  font-size: 0.8rem;
  font-style: italic;
  text-align: center;
  padding: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

/* Lightbox Modal (Zoom de captura de pantalla) */
.lightbox-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(8, 10, 18, 0.95);
  backdrop-filter: blur(15px);
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.lightbox-content {
  max-width: 95%;
  width: 1100px; /* Ancho optimizado para pantallas HD */
  max-height: 90vh;
  border-radius: 16px;
  border: 2px solid var(--accent-cyan);
  box-shadow: 0 0 35px hsla(180, 100%, 50%, 0.25);
  background: var(--bg-panel);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.lightbox-content img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 80vh;
  object-fit: contain;
}

.lightbox-header {
  padding: 12px 20px;
  background: hsla(223, 20%, 7%, 0.9);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.lightbox-title {
  font-weight: 600;
  color: var(--text-main);
}

/* Overlay de Pausado en Alumno */
.paused-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(8, 10, 18, 0.96);
  backdrop-filter: blur(25px);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 40px;
  text-align: center;
}

.paused-card {
  max-width: 550px;
  padding: 45px;
  border: 2px solid var(--accent-cyan);
  box-shadow: var(--shadow-glow);
  background: var(--bg-panel);
  border-radius: 24px;
  animation: pulse-border-cyan 2s infinite alternate;
}

.paused-icon {
  color: var(--accent-cyan);
  font-size: 3.5rem;
  margin-bottom: 20px;
}

@keyframes pulse-border-cyan {
  0% {
    border-color: hsla(180, 100%, 50%, 0.3);
    box-shadow: 0 0 0px var(--accent-cyan);
  }
  100% {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 15px hsla(180, 100%, 50%, 0.3);
  }
}

/* Modal de Mensaje del Docente */
.message-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(8, 10, 18, 0.85);
  backdrop-filter: blur(10px);
  z-index: 10500;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.message-modal-card {
  max-width: 480px;
  width: 100%;
  background: var(--bg-panel);
  border-radius: 20px;
  border: 2px solid var(--accent-purple);
  box-shadow: var(--shadow-glow);
  overflow: hidden;
  animation: fadeInUp 0.3s ease-out;
}

.message-modal-header {
  padding: 15px 25px;
  background: hsla(263, 90%, 65%, 0.15);
  border-bottom: 1px solid var(--border-color);
  font-weight: 700;
  color: var(--accent-purple);
  font-size: 1.05rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.message-modal-body {
  padding: 25px;
  color: var(--text-main);
  font-size: 1rem;
  line-height: 1.6;
}

.message-modal-footer {
  padding: 15px 25px;
  background: hsla(223, 20%, 7%, 0.4);
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Badge de alumno desconectado */
.student-status-badge.offline {
  background: hsla(0, 0%, 50%, 0.15);
  color: var(--text-muted);
  border: 1px solid hsla(0, 0%, 50%, 0.25);
}

/* Tarjeta de estudiante en estado desconectado */
.student-card.offline {
  border-left-color: var(--text-muted);
  opacity: 0.75;
}

/* Animaciones y parpadeo para alertas de tráfico de red */
@keyframes pulse-border-red-parp {
  0% {
    border-color: hsla(0, 85%, 60%, 0.3);
    box-shadow: 0 0 0px var(--color-error);
  }
  100% {
    border-color: var(--color-error);
    box-shadow: 0 0 10px hsla(0, 85%, 60%, 0.4);
  }
}

/* Estilos para la tabla de exámenes entregados (Monitoreo Docente) */
.report-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.report-table th {
  padding: 14px 18px;
  color: var(--text-secondary);
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.report-table td {
  padding: 14px 18px;
  border-bottom: 1px solid hsla(223, 20%, 30%, 0.15);
  color: var(--text-secondary);
}

.report-table tbody tr:last-child td {
  border-bottom: none;
}

/* Tarjeta interactiva de seleccion de examenes */
.exam-select-card {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.exam-select-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-cyan) !important;
  box-shadow: var(--shadow-glow-cyan) !important;
}

.exam-select-card.selected {
  border-color: var(--accent-cyan) !important;
  background: hsla(180, 100%, 50%, 0.05) !important;
  box-shadow: 0 0 15px hsla(180, 100%, 50%, 0.2) !important;
  transform: translateY(-2px);
}

/* ==========================================================================
   🎉 VISTA DE ENTREGA EXITOSA (CENTRADADA Y COMPACTA)
   ========================================================================== */

#finish-view {
  position: fixed !important;
  top: 0 !important;
  left: 0 !important;
  width: 100vw !important;
  height: 100vh !important;
  min-height: 100vh !important;
  background-color: var(--bg-dark) !important;
  background-image: 
    radial-gradient(at 10% 10%, hsla(263, 90%, 65%, 0.06) 0px, transparent 50%),
    radial-gradient(at 90% 90%, hsla(180, 100%, 50%, 0.05) 0px, transparent 50%) !important;
  display: none; /* Controlado por JS */
  align-items: center !important;
  justify-content: center !important;
  z-index: 99999 !important;
  padding: 20px !important;
  box-sizing: border-box !important;
  overflow: hidden !important;
}

#finish-view .login-card {
  width: 100% !important;
  max-width: 450px !important;
  padding: 30px 35px !important;
  border-radius: 20px !important;
  background: var(--bg-panel) !important;
  backdrop-filter: var(--glass-filter) !important;
  -webkit-backdrop-filter: var(--glass-filter) !important;
  border: 1px solid hsla(145, 75%, 45%, 0.3) !important; /* Brillo verde de éxito */
  box-shadow: 
    0 20px 50px rgba(0, 0, 0, 0.6),
    0 0 30px hsla(145, 75%, 45%, 0.15) !important;
  margin: auto !important;
  text-align: center !important;
  display: flex !important;
  flex-direction: column !important;
  align-items: center !important;
  justify-content: center !important;
  animation: finishCardAppear 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) !important;
}

#finish-view .login-card svg {
  margin-bottom: 0 !important;
}

#finish-view .login-card h1 {
  margin-bottom: 0 !important;
  font-size: 1.6rem !important;
  background: linear-gradient(135deg, var(--text-main), hsl(145, 75%, 45%)) !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
}

#finish-view .login-card p {
  margin-bottom: 0 !important;
  font-size: 0.88rem !important;
  line-height: 1.5 !important;
}

#finish-view .login-card .delivery-status-box {
  background: var(--bg-input) !important;
  padding: 16px 20px !important;
  border-radius: 12px !important;
  border: 1px solid var(--border-color) !important;
  width: 100% !important;
  box-sizing: border-box !important;
  display: flex !important;
  flex-direction: column !important;
  gap: 8px !important;
}

@keyframes finishCardAppear {
  0% {
    transform: scale(0.9) translateY(20px);
    opacity: 0;
  }
  100% {
    transform: scale(1) translateY(0);
    opacity: 1;
  }
}

/* ==========================================================================
   4B. ESTILOS RESPONSIVOS MULTIPLATAFORMA Y COMPATIBILIDAD
   ========================================================================== */

/* Solución de visibilidad para listas desplegables (Evita texto blanco sobre fondo blanco en Windows/Chrome) */
select {
  color-scheme: dark !important;
  background-color: var(--bg-input) !important;
  color: var(--text-main) !important;
}

select option {
  background-color: #161b22 !important;
  color: #f0f4f8 !important;
}

select.input-field, select.form-input {
  background-color: var(--bg-input) !important;
  color: var(--text-main) !important;
}

/* Chat box collapsible behavior */
#student-chat-box h3 {
  cursor: pointer;
  user-select: none;
}

#student-chat-box h3:hover {
  opacity: 0.9;
}

#student-chat-box.collapsed > div,
#student-chat-box.collapsed > #student-chat-messages {
  display: none !important;
}

/* On desktop, force chat box to show even if it has collapsed class */
@media (min-width: 769px) {
  #student-chat-box.collapsed > div,
  #student-chat-box.collapsed > #student-chat-messages {
    display: flex !important;
  }
  #student-chat-box .chat-toggle-icon {
    display: none !important;
  }
}

/* Ajustes responsivos para cabecera y pestañas docentes */
@media (max-width: 1024px) {
  #teacher-dashboard-view header {
    height: auto !important;
    flex-direction: column !important;
    padding: 15px 20px !important;
    gap: 15px !important;
    align-items: stretch !important;
  }
  
  #teacher-dashboard-view .header-right {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 12px !important;
    width: 100% !important;
  }
  
  .teacher-tabs {
    overflow-x: auto !important;
    white-space: nowrap !important;
    display: flex !important;
    padding: 4px 6px 8px 6px !important;
    gap: 10px !important;
    scrollbar-width: thin;
    -webkit-overflow-scrolling: touch;
  }
  
  .teacher-tab {
    flex-shrink: 0 !important;
    padding: 8px 16px !important;
    font-size: 0.85rem !important;
  }
  
  #teacher-dashboard-view .header-right button {
    width: 100% !important;
    padding: 10px !important;
    text-align: center !important;
  }
}

/* Adaptabilidad del login del alumno (Disposición vertical en móviles) */
@media (max-width: 768px) {
  #login-layout {
    flex-direction: column !important;
    align-items: center !important;
  }
  
  #login-layout > div {
    max-width: 100% !important;
    width: 100% !important;
  }
}

/* Adaptabilidad general de áreas de trabajo, tablas y formularios */
@media (max-width: 768px) {
  .teacher-layout {
    padding: 15px !important;
  }
  
  #active-exams-selection-grid, #manage-exams-grid {
    grid-template-columns: 1fr !important;
  }
  
  .monitoring-logs-grid {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }
  
  .review-modal-footer-grid {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }
  
  .review-modal-footer-grid button {
    width: 100% !important;
  }
  
  .exam-meta-grid {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }
  
  .test-case-creator-row {
    grid-template-columns: 1fr !important;
    gap: 8px !important;
  }
  
  .test-case-creator-row button {
    grid-column: 1 / -1 !important;
    width: 100% !important;
  }
  
  /* Ajuste de cabecera del Alumno en móviles */
  #exam-view header {
    height: auto !important;
    flex-direction: column !important;
    padding: 10px 15px !important;
    gap: 8px !important;
    align-items: center !important;
  }
  
  #exam-view header .header-left {
    justify-content: center !important;
    width: 100% !important;
    flex-wrap: wrap !important;
    gap: 8px !important;
  }
  
  #exam-view header .header-right {
    justify-content: space-between !important;
    width: 100% !important;
    flex-wrap: wrap !important;
    gap: 8px !important;
    border-top: 1px solid var(--border-color) !important;
    padding-top: 8px !important;
  }
  
  #exam-view header .proctor-status {
    display: none !important;
  }
  
  #exam-view header .brand-title {
    font-size: 1rem !important;
  }
  
  /* Layout del examen en móviles (Usando display: contents para restructurar) */
  #exam-view {
    height: 100vh !important;
    display: flex !important;
    flex-direction: column !important;
    overflow: hidden !important;
  }
  
  #exam-view .exam-layout {
    flex: 1 !important;
    display: grid !important;
    grid-template-columns: 1fr !important;
    grid-template-rows: auto 1fr auto !important; /* Top navbar de preguntas, contenido, chat abajo */
    height: auto !important;
    overflow: hidden !important;
  }
  
  .sidebar-questions {
    display: contents !important;
  }
  
  .sidebar-questions .sidebar-header {
    display: none !important;
  }
  
  .questions-list {
    grid-row: 1 !important;
    flex-direction: row !important;
    overflow-x: auto !important;
    white-space: nowrap !important;
    padding: 10px 15px !important;
    gap: 10px !important;
    border-bottom: 1px solid var(--border-color) !important;
    background: hsla(225, 20%, 9%, 0.9) !important;
    height: 60px !important;
    flex: none !important;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }
  
  .questions-list::-webkit-scrollbar {
    display: none;
  }
  
  .question-item {
    padding: 6px 12px !important;
    border-radius: 8px !important;
    background: hsla(223, 20%, 15%, 0.5) !important;
    align-items: center !important;
    gap: 6px !important;
    display: inline-flex !important;
    height: 100% !important;
  }
  
  .question-item .q-item-info {
    flex-direction: row !important;
    align-items: center !important;
    gap: 6px !important;
  }
  
  .question-item .q-item-title {
    font-size: 0.85rem !important;
    margin-bottom: 0 !important;
  }
  
  .question-item .q-item-type {
    font-size: 0.7rem !important;
    opacity: 0.8 !important;
  }
  
  /* Área central de pregunta activa: Stacking vertical */
  .active-question-container {
    grid-row: 2 !important;
    grid-template-columns: 1fr !important;
    grid-template-rows: 1fr 1.2fr !important; /* Mitad enunciado, mitad editor */
    height: 100% !important;
    overflow: hidden !important;
  }
  
  .question-details {
    height: 100% !important;
    overflow-y: auto !important;
    border-right: none !important;
    border-bottom: 1px solid var(--border-color) !important;
    padding: 15px !important;
    display: flex !important;
    flex-direction: column !important;
    gap: 15px !important;
  }
  
  .workspace-editor {
    height: 100% !important;
    overflow: hidden !important;
  }
  
  #monaco-editor, #fallback-code-editor {
    height: 100% !important;
  }
  
  /* Chat con el docente fijado abajo del examen */
  #student-chat-box {
    grid-row: 3 !important;
    margin: 0 !important;
    padding: 10px 15px !important;
    border-top: 1px solid var(--border-color) !important;
    background: hsla(225, 20%, 8%, 0.95) !important;
    display: flex !important;
    flex-direction: column !important;
    gap: 8px !important;
    height: auto !important;
    max-height: 180px !important;
  }
  
  #student-chat-box.collapsed {
    max-height: 40px !important;
  }
  
  #student-chat-messages {
    height: 80px !important;
  }
  
  /* Webcam PIP flotante sobre la pantalla en móviles */
  #webcam-pip {
    position: fixed !important;
    bottom: 15px !important;
    right: 15px !important;
    width: 90px !important;
    height: 68px !important;
    margin: 0 !important;
    z-index: 9999 !important;
    border: 1.5px solid var(--accent-cyan) !important;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5) !important;
  }
  
  #webcam-pip video {
    width: 100% !important;
    height: 100% !important;
  }
  
  /* Ajuste de padding de tablas */
  .report-table th, .report-table td {
    padding: 10px 12px !important;
    font-size: 0.82rem !important;
  }
}