/* ==========================================================================
   LinkLingo — English Placement Test & Auth Stylesheet
   ========================================================================== */

:root {
  --navy-dark: #06132B;
  --navy-light: #0B1E42;
  --blue-electric: #0072FF;
  --blue-cyan: #00D2FF;
  --mint-teal: #00C897;
  --orange-warm: #FF5200;
  --orange-bright: #FF7A00;
  --bg-body: #F8FAFC;
  --text-dark: #0F172A;
  --text-muted: #64748B;
  --border-subtle: #E2E8F0;
  --border-bright: #CBD5E1;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
}

body {
  background: var(--bg-body);
  font-family: var(--font-body);
  color: var(--text-dark);
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header Navbar */
.test-navbar {
  background: #FFFFFF;
  border-bottom: 1px solid var(--border-subtle);
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

.test-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.test-logo img {
  height: 38px;
}

.test-exit-btn {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: color 0.2s ease;
}

.test-exit-btn:hover {
  color: var(--navy-dark);
}

/* Main Container */
.test-container {
  max-width: 840px;
  margin: 2.5rem auto;
  padding: 0 1.5rem;
  width: 100%;
  box-sizing: border-box;
  flex-grow: 1;
}

/* Card Box */
.test-card-box {
  background: #FFFFFF;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: 0 10px 30px rgba(6, 19, 43, 0.05);
  position: relative;
  overflow: hidden;
}

/* Auth Tabs */
.auth-tabs-nav {
  display: flex;
  background: #F1F5F9;
  padding: 4px;
  border-radius: var(--radius-md);
  margin-bottom: 2rem;
}

.auth-tab-btn {
  flex: 1;
  padding: 0.85rem;
  border: none;
  background: transparent;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1rem;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.25s ease;
}

.auth-tab-btn.active {
  background: #FFFFFF;
  color: var(--navy-dark);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

/* Form Styles */
.form-group {
  margin-bottom: 1.4rem;
}

.form-label {
  display: block;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--navy-dark);
  margin-bottom: 0.45rem;
}

.form-control {
  width: 100%;
  padding: 0.85rem 1.1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: #FFFFFF;
  box-sizing: border-box;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--blue-electric);
  box-shadow: 0 0 0 3px rgba(0, 114, 255, 0.12);
}

.password-input-wrapper {
  position: relative;
}

.toggle-pwd-btn {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.2rem;
}

/* Date of Birth Grid (3 selects) */
.dob-select-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr 1.1fr;
  gap: 0.75rem;
}

/* Terms Checkbox */
.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1.45;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--blue-electric);
}

/* Primary Action Button */
.btn-submit-auth {
  width: 100%;
  padding: 1.1rem;
  background: linear-gradient(135deg, var(--orange-warm), var(--orange-bright));
  color: #FFFFFF;
  border: none;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  box-shadow: 0 8px 20px rgba(255, 82, 0, 0.28);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  margin-top: 1.5rem;
}

.btn-submit-auth:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(255, 82, 0, 0.36);
}

/* Error Banner */
.auth-error-banner {
  background: #FEF2F2;
  border: 1px solid #FCA5A5;
  color: #991B1B;
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  display: none;
}

.auth-error-banner.active {
  display: block;
}

/* User Session Badge Top Header */
.user-logged-badge {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(0, 114, 255, 0.08);
  border: 1px solid rgba(0, 114, 255, 0.18);
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--blue-electric);
}

/* Question & Assessment Screen */
.assessment-screen {
  display: none;
}

.assessment-screen.active {
  display: block;
}

.progress-header-bar {
  margin-bottom: 2rem;
}

.progress-info-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.6rem;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-muted);
}

.skill-tag-pill {
  background: var(--navy-dark);
  color: #FFFFFF;
  padding: 0.3rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.progress-track-bg {
  width: 100%;
  height: 10px;
  background: #E2E8F0;
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-track-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--blue-electric), var(--blue-cyan));
  width: 0%;
  transition: width 0.4s ease;
}

.question-title-text {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--navy-dark);
  line-height: 1.45;
  margin-bottom: 1.8rem;
}

/* Options Grid */
.options-grid-container {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  margin-bottom: 2rem;
}

.option-choice-card {
  background: #FFFFFF;
  border: 2px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.1rem 1.4rem;
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--navy-dark);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  transition: all 0.2s ease;
}

.option-choice-card:hover {
  border-color: var(--blue-electric);
  background: rgba(0, 114, 255, 0.03);
}

.option-choice-card.selected {
  border-color: var(--blue-electric);
  background: rgba(0, 114, 255, 0.08);
  box-shadow: 0 4px 14px rgba(0, 114, 255, 0.15);
}

.option-indicator-dot {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--border-bright);
  flex-shrink: 0;
  transition: all 0.2s ease;
}

.option-choice-card.selected .option-indicator-dot {
  border-color: var(--blue-electric);
  background: var(--blue-electric);
  box-shadow: inset 0 0 0 3px #FFFFFF;
}

/* Timer Badge in Header */
.test-timer-badge {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  background: #FEF2F2;
  border: 1px solid #FECACA;
  color: #DC2626;
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1rem;
  box-shadow: 0 2px 8px rgba(220, 38, 38, 0.1);
}

.test-timer-badge.warning {
  animation: pulse-red 1s infinite alternate;
}

@keyframes pulse-red {
  from { background: #FEF2F2; }
  to { background: #FCA5A5; }
}

/* Reading Passage Container Box */
.reading-passage-box {
  background: #F8FAFC;
  border: 1px solid var(--border-subtle);
  border-left: 4px solid var(--blue-electric);
  border-radius: var(--radius-sm);
  padding: 1.25rem 1.4rem;
  font-size: 0.96rem;
  color: var(--text-dark);
  line-height: 1.65;
  margin-bottom: 1.5rem;
  max-height: 220px;
  overflow-y: auto;
}

.reading-passage-title {
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--blue-electric);
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* Assessment Navigation Bar (Anterior / Siguiente / Finalizar) */
.assessment-nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--border-subtle);
}

.btn-nav-prev {
  padding: 0.85rem 1.5rem;
  background: #F1F5F9;
  color: var(--navy-dark);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.2s ease;
}

.btn-nav-prev:hover:not(:disabled) {
  background: #E2E8F0;
}

.btn-nav-prev:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.btn-nav-next {
  padding: 0.85rem 1.8rem;
  background: var(--navy-dark);
  color: #FFFFFF;
  border: none;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-size: 0.98rem;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.2s ease;
}

.btn-nav-next:hover:not(:disabled) {
  background: var(--blue-electric);
  box-shadow: var(--shadow-blue);
}

.btn-nav-next.finish-btn {
  background: linear-gradient(135deg, var(--orange-warm), var(--orange-bright));
  box-shadow: 0 6px 18px rgba(255, 82, 0, 0.3);
}

/* Results Screen */
.results-screen {
  display: none;
  text-align: center;
}

.results-screen.active {
  display: block;
}

.results-level-ring {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--navy-dark), var(--navy-light));
  color: #FFFFFF;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem auto;
  box-shadow: 0 12px 30px rgba(6, 19, 43, 0.25);
  border: 6px solid var(--blue-electric);
}

.level-code-huge {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, #FFFFFF, var(--blue-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.level-name-sub {
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--mint-teal);
  margin-top: 4px;
}

.cefr-scale-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #F1F5F9;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-full);
  margin: 2rem 0;
}

.scale-step {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--text-muted);
  padding: 0.35rem 0.8rem;
  border-radius: var(--radius-full);
}

.scale-step.active {
  background: var(--blue-electric);
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(0, 114, 255, 0.3);
}

/* Skills Breakdown Bars */
.skills-radar-list {
  text-align: left;
  margin: 2rem 0;
}

.skill-row-item {
  margin-bottom: 1.1rem;
}

.skill-row-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  color: var(--navy-dark);
}

.skill-row-track {
  height: 8px;
  background: #E2E8F0;
  border-radius: var(--radius-full);
  overflow: hidden;
}

.skill-row-fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width 1s ease-out;
}

.skill-row-fill.grammar { background: var(--blue-electric); }
.skill-row-fill.vocabulary { background: var(--mint-teal); }
.skill-row-fill.reading { background: var(--blue-cyan); }
.skill-row-fill.listening { background: var(--orange-warm); }
.skill-row-fill.use_of_english { background: var(--navy-dark); }

/* Program Recommendation Banner */
.recommendation-banner-box {
  background: linear-gradient(135deg, rgba(0, 114, 255, 0.06), rgba(0, 210, 255, 0.06));
  border: 2px solid var(--blue-electric);
  border-radius: var(--radius-md);
  padding: 1.8rem;
  margin-top: 2rem;
  text-align: left;
}

.rec-badge-tag {
  background: var(--blue-electric);
  color: #FFFFFF;
  font-size: 0.78rem;
  font-weight: 800;
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-full);
  display: inline-block;
  margin-bottom: 0.6rem;
}

/* Mobile Responsive */
@media (max-width: 640px) {
  .test-card-box {
    padding: 1.5rem 1.2rem;
  }
  .dob-select-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
  .question-title-text {
    font-size: 1.15rem;
  }
}