/* ===== CSS Custom Properties ===== */
:root {
  --color-primary: #8b5cf6;
  --color-primary-glow: #a78bfa;
  --color-success: #10b981;
  --color-success-bg: rgba(16, 185, 129, 0.1);
  --color-danger: #ef4444;
  --color-danger-bg: rgba(239, 68, 68, 0.1);
  --color-bg: #09090b;
  --color-surface: rgba(24, 24, 27, 0.6);
  --color-surface-hover: rgba(39, 39, 42, 0.8);
  --color-text: #f8fafc;
  --color-text-muted: #94a3b8;
  --color-warning: #f59e0b;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-glow: rgba(139, 92, 246, 0.3);
  --radius: 16px;
  --radius-sm: 8px;
  --spacing-sm: 12px;
  --spacing-md: 20px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Outfit', sans-serif;
}

/* ===== Base Reset ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

[hidden] {
  display: none !important;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* Ambient Background Glows */
.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  z-index: -2;
  opacity: 0.15;
  animation: float 20s ease-in-out infinite alternate;
}
.bg-glow-1 {
  width: 600px;
  height: 600px;
  background: var(--color-primary);
  top: -10%;
  left: -10%;
}
.bg-glow-2 {
  width: 500px;
  height: 500px;
  background: #3b82f6;
  bottom: -10%;
  right: -10%;
  animation-delay: -5s;
}

.noise-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
  opacity: 0.02;
  z-index: -1;
  pointer-events: none;
}

@keyframes float {
  0% { transform: translate(0, 0); }
  100% { transform: translate(50px, 30px); }
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--color-primary-glow);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  text-decoration: underline;
  color: #c4b5fd;
}

ul, ol {
  list-style: none;
}

/* ===== Typography ===== */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.2;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

/* ===== Layout ===== */
main {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
  position: relative;
  z-index: 1;
}

/* ===== Accessible Focus Styles ===== */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 12px 24px;
  font-size: 1rem;
  font-family: var(--font-display);
  font-weight: 600;
  border: 1px solid transparent;
  border-radius: 50px; /* pill shape */
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  line-height: 1.4;
  letter-spacing: 0.01em;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, #6d28d9 100%);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.1);
  box-shadow: 0 4px 14px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(139, 92, 246, 0.4);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(1px);
}

.btn-danger {
  background-color: var(--color-danger);
  color: #fff;
  box-shadow: 0 4px 14px rgba(239, 68, 68, 0.25);
}

.btn-danger:hover:not(:disabled) {
  background-color: #dc2626;
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-surface-hover);
  border-color: rgba(255,255,255,0.15);
  transform: translateY(-1px);
}

/* ===== Card ===== */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius);
  padding: var(--spacing-lg);
  border: 1px solid var(--color-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), inset 0 1px 0 rgba(255,255,255,0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255,255,255,0.1);
}

/* ===== Form Group ===== */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: var(--spacing-lg);
}

.form-group label {
  font-size: 0.9rem;
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--color-text);
  letter-spacing: 0.02em;
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 14px 16px;
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: rgba(0, 0, 0, 0.3);
  color: var(--color-text);
  font-family: var(--font-sans);
  transition: all 0.2s ease;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #52525b;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary-glow);
  box-shadow: 0 0 0 3px var(--color-border-glow);
  outline: none;
  background-color: rgba(0, 0, 0, 0.5);
}

.form-group input[aria-invalid="true"],
.form-group select[aria-invalid="true"],
.form-group textarea[aria-invalid="true"] {
  border-color: var(--color-danger);
}

.form-group input[aria-invalid="true"]:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2);
}

/* ===== Error Text ===== */
.error-text {
  color: #fca5a5;
  font-size: 0.85rem;
  margin-top: 4px;
}

/* ===== Score Badge ===== */
.score-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  padding: 6px 14px;
  font-size: 0.9rem;
  font-family: var(--font-display);
  font-weight: 700;
  border-radius: 50px;
  color: #fff;
  letter-spacing: 0.02em;
}

.score-badge.score-green {
  background-color: var(--color-success-bg);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #34d399;
}

.score-badge.score-yellow {
  background-color: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: #fbbf24;
}

.score-badge.score-red {
  background-color: var(--color-danger-bg);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #f87171;
}

/* ===== Navigation ===== */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(9, 9, 11, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding: 12px 0;
}

.app-header .nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  width: 32px;
  height: 32px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 15px rgba(139, 92, 246, 0.4);
}

.app-header .logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  color: #fff;
}

.main-nav {
  display: flex;
  gap: var(--spacing-sm);
}

.app-header .nav-link {
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-family: var(--font-display);
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 50px;
  transition: all 0.2s ease;
}

.app-header .nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.app-header .nav-link.active {
  color: #fff;
  background: rgba(139, 92, 246, 0.1);
}

.user-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.user-pill {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.btn-logout {
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.btn-logout:hover {
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-danger);
}

/* ===== Loading Indicator ===== */
.loading-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: rgba(139, 92, 246, 0.1);
  color: #c4b5fd;
  font-size: 0.9rem;
  font-family: var(--font-display);
  font-weight: 500;
  border-bottom: 1px solid rgba(139, 92, 246, 0.2);
}

.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(139, 92, 246, 0.2);
  border-top-color: var(--color-primary-glow);
  border-radius: 50%;
  animation: spin 0.8s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ===== Notification Area ===== */
.notification-area {
  padding: 12px var(--spacing-md);
  text-align: center;
  font-size: 0.95rem;
  font-weight: 500;
  background-color: var(--color-danger-bg);
  color: #fca5a5;
  border-bottom: 1px solid rgba(239, 68, 68, 0.3);
}

/* ===== Auth / Landing Screen ===== */
.landing-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
  gap: var(--spacing-xl);
  padding: 0 1rem;
}

@media (min-width: 900px) {
  .landing-wrapper {
    flex-direction: row;
    justify-content: space-between;
    gap: 4rem;
    padding: 0 2rem;
  }
}

.landing-hero {
  text-align: center;
  max-width: 600px;
}

@media (min-width: 900px) {
  .landing-hero {
    text-align: left;
    flex: 1;
    max-width: 50%;
  }
}

.landing-hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(to right, #ffffff, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.landing-hero p {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.brand-highlight {
  color: #fff;
  font-weight: 700;
  background: linear-gradient(to right, #c4b5fd, #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

@media (min-width: 900px) {
  .auth-screen {
    flex: 1;
    display: flex;
    justify-content: center; /* keep card centered in its half */
    width: 100%;
  }
}

.auth-screen .card {
  width: 100%;
  max-width: 440px;
  padding: var(--spacing-xl);
  background: rgba(18, 18, 20, 0.7);
}

.auth-screen h2 {
  text-align: center;
  margin-bottom: var(--spacing-lg);
}

.auth-screen .btn-primary {
  width: 100%;
  margin-top: var(--spacing-sm);
  padding: 14px;
}

.auth-screen .auth-footer {
  text-align: center;
  margin-top: var(--spacing-lg);
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.auth-screen .alert {
  padding: 12px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  margin-bottom: var(--spacing-md);
  background-color: var(--color-danger-bg);
  color: #fca5a5;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

/* ===== Challenge Screen ===== */
.challenge-screen .mission-card {
  margin-bottom: var(--spacing-md);
  text-align: left;
  padding: var(--spacing-xl);
  border: 1px solid rgba(139, 92, 246, 0.2);
  background: linear-gradient(180deg, rgba(24, 24, 27, 0.8) 0%, rgba(9, 9, 11, 0.9) 100%);
}

.mission-header {
  margin-bottom: var(--spacing-lg);
}

.mission-status {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary-glow);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.pulse-icon::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--color-primary);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--color-primary);
  animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
  0% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.5); opacity: 0.5; }
  100% { transform: scale(1); opacity: 1; }
}

.challenge-screen h1 {
  font-size: 2.25rem;
  margin-bottom: 0;
}

.prompt-container {
  background: rgba(255, 255, 255, 0.03);
  padding: var(--spacing-lg);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.05);
  margin-bottom: var(--spacing-lg);
}

.challenge-screen .prompt-category {
  display: inline-block;
  font-size: 0.8rem;
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary-glow);
  margin-bottom: 12px;
  background: rgba(139, 92, 246, 0.1);
  padding: 4px 10px;
  border-radius: 4px;
}

.challenge-screen .prompt-text {
  font-size: 1.75rem;
  font-family: var(--font-display);
  line-height: 1.3;
  margin-bottom: 0;
  font-weight: 500;
  color: #fff;
}

.challenge-meta {
  display: flex;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.challenge-screen .actions {
  display: flex;
  gap: var(--spacing-md);
  justify-content: flex-start;
  flex-wrap: wrap;
}

/* ===== Recording Screen ===== */
.recording-screen .card {
  padding: 3rem 2rem;
}

.recording-screen .console-card {
  padding: 0;
  overflow: hidden;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.console-header {
  padding: var(--spacing-lg);
  background: rgba(0, 0, 0, 0.2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 12px;
}

.idle-status {
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-text-muted);
}

.recording-pulse {
  background: var(--color-danger-bg);
  color: #fca5a5;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.status-dot {
  width: 8px;
  height: 8px;
  background: var(--color-danger);
  border-radius: 50%;
}

.recording-pulse .status-dot {
  animation: pulse-dot 1s infinite;
}

.prompt-reference-container {
  padding: var(--spacing-lg);
}

.ref-label {
  font-size: 0.7rem;
  font-weight: 800;
  color: var(--color-primary-glow);
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.recording-screen .prompt-reference {
  font-size: 1.15rem;
  line-height: 1.5;
  color: #fff;
  font-family: var(--font-display);
}

.retry-window-banner {
  margin: 0 var(--spacing-lg) var(--spacing-md);
  padding: 12px 14px;
  border-radius: 14px;
  font-size: 0.92rem;
  line-height: 1.5;
}

.retry-window-banner.active {
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(96, 165, 250, 0.2);
  color: #dbeafe;
}

.retry-window-banner.expired {
  background: rgba(248, 113, 113, 0.12);
  border: 1px solid rgba(248, 113, 113, 0.2);
  color: #fecaca;
}

.recording-visuals {
  padding: var(--spacing-xl) var(--spacing-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xl);
  background: radial-gradient(circle at center, rgba(139, 92, 246, 0.05) 0%, transparent 70%);
}

.visualizer-container {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 60px;
}

.visualizer-container .bar {
  width: 4px;
  height: 20px;
  background: var(--color-primary-glow);
  border-radius: 2px;
  transition: height 0.2s ease;
}

.visualizer-container.active .bar {
  animation: bar-dance 1s infinite ease-in-out;
}

.bar-1 { animation-delay: 0.0s; }
.bar-2 { animation-delay: 0.1s; }
.bar-3 { animation-delay: 0.2s; }
.bar-4 { animation-delay: 0.3s; }
.bar-5 { animation-delay: 0.4s; }
.bar-6 { animation-delay: 0.5s; }

@keyframes bar-dance {
  0%, 100% { height: 20px; }
  50% { height: 60px; }
}

.timer-display {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.recording-screen .timer {
  font-size: 4rem;
  font-family: var(--font-display);
  font-weight: 800;
  color: #fff;
  line-height: 1;
}

.limit-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-muted);
  margin-top: 8px;
}

.recording-screen .recording-controls {
  padding: var(--spacing-lg);
  background: rgba(0, 0, 0, 0.2);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  justify-content: center;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.1rem;
}

/* ===== Processing Screen ===== */
.processing-screen .processing-card {
  text-align: center;
  padding: 4rem 2rem;
  border-color: rgba(139, 92, 246, 0.3);
}

.neural-spinner {
  position: relative;
  width: 100px;
  height: 100px;
  margin: 0 auto var(--spacing-xl);
  display: flex;
  align-items: center;
  justify-content: center;
}

.neural-spinner .node {
  position: absolute;
  width: 12px;
  height: 12px;
  background: var(--color-primary-glow);
  border-radius: 50%;
  box-shadow: 0 0 15px var(--color-primary-glow);
}

.node-1 { animation: drift-1 3s infinite ease-in-out; }
.node-2 { animation: drift-2 3s infinite ease-in-out; animation-delay: 1s; }
.node-3 { animation: drift-3 3s infinite ease-in-out; animation-delay: 2s; }

.pulse-ring {
  position: absolute;
  width: 100%;
  height: 100%;
  border: 1px solid var(--color-primary);
  border-radius: 50%;
  animation: grow-fade 2s infinite ease-out;
  opacity: 0;
}

@keyframes drift-1 {
  0%, 100% { transform: translate(0, -30px); }
  33% { transform: translate(25px, 15px); }
  66% { transform: translate(-25px, 15px); }
}

@keyframes drift-2 {
  0%, 100% { transform: translate(25px, 15px); }
  33% { transform: translate(-25px, 15px); }
  66% { transform: translate(0, -30px); }
}

@keyframes drift-3 {
  0%, 100% { transform: translate(-25px, 15px); }
  33% { transform: translate(0, -30px); }
  66% { transform: translate(25px, 15px); }
}

@keyframes grow-fade {
  0% { transform: scale(0.5); opacity: 0; }
  50% { opacity: 0.5; }
  100% { transform: scale(1.5); opacity: 0; }
}

.processing-screen .progress-stage {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--color-primary-glow);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ===== Feedback Screen ===== */
.feedback-report {
  animation: fadeIn 0.6s ease-out;
}

.report-header {
  margin-bottom: var(--spacing-xl);
}

.overall-score-container {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.score-ring {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 4px solid var(--color-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(139, 92, 246, 0.1);
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.2);
}

.score-ring .score-value {
  font-size: 2.5rem;
  font-family: var(--font-display);
  font-weight: 800;
  color: #fff;
  line-height: 1;
}

.score-ring .score-total {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 600;
}

.score-info h2 {
  font-size: 2rem;
  margin-bottom: 4px;
}

.score-info p {
  color: var(--color-text-muted);
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 0.85rem;
}

.dimension-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: var(--spacing-sm);
}

.analysis-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.feedback-section .section-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: var(--spacing-md);
  color: #fff;
}

.feedback-section h3 {
  margin-bottom: 0;
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.positive .section-title { color: var(--color-success); }
.growth .section-title { color: var(--color-warning); }

.feedback-section ul {
  list-style: none;
  padding-left: 0;
}

.feedback-section ul li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 12px;
  font-size: 0.95rem;
  color: #e2e8f0;
  line-height: 1.5;
}

.feedback-section ul li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--color-primary-glow);
}

.model-strategy-card {
  padding: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.model-strategy-card .feedback-section {
  padding: var(--spacing-lg);
}

.outline-section {
  background: rgba(0, 0, 0, 0.2);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.example-section {
  background: linear-gradient(180deg, rgba(99, 102, 241, 0.08), rgba(0, 0, 0, 0.12));
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.words-section {
  background: linear-gradient(180deg, rgba(16, 185, 129, 0.08), rgba(0, 0, 0, 0.12));
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.strategy-text {
  font-size: 1rem;
  line-height: 1.6;
  color: #e2e8f0;
}

.example-note {
  margin-bottom: 14px;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.recommended-example-content {
  font-size: 1rem;
  line-height: 1.75;
  color: #f8fafc;
  white-space: pre-wrap;
}

.suggested-words-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.suggested-word-pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.22);
  color: #d1fae5;
  font-size: 0.92rem;
  line-height: 1.2;
}

.model-outline-content {
  font-size: 1rem;
  line-height: 1.7;
  color: #cbd5e1;
  white-space: pre-wrap;
  font-family: var(--font-sans);
}

.retry-window-note {
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 14px;
  font-size: 0.92rem;
  line-height: 1.5;
}

.retry-window-note.active {
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(96, 165, 250, 0.2);
  color: #dbeafe;
}

.retry-window-note.expired {
  background: rgba(248, 113, 113, 0.12);
  border: 1px solid rgba(248, 113, 113, 0.2);
  color: #fecaca;
}

@media (max-width: 768px) {
  .analysis-grid { grid-template-columns: 1fr; }
  .overall-score-container { flex-direction: column; text-align: center; }
}

/* ===== Comparison Screen ===== */
.comparison-screen .analysis-report-card {
  padding: var(--spacing-xl);
  border-color: var(--color-success-bg);
}

.comparison-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
}

.score-card {
  flex: 1;
  text-align: center;
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.score-type {
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
}

.big-score {
  font-size: 3.5rem;
  font-family: var(--font-display);
  font-weight: 800;
  margin: 12px 0;
}

.initial-score .big-score { color: #94a3b8; }
.retry-score .big-score { color: #fff; text-shadow: 0 0 20px rgba(139, 92, 246, 0.3); }

.delta-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  min-width: 120px;
}

.delta-arrow {
  font-size: 2.25rem;
  font-weight: 800;
  font-family: var(--font-display);
  padding: 8px 16px;
  border-radius: 12px;
}

.delta-arrow.improved {
  background: var(--color-success-bg);
  color: #34d399;
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.1);
}

.delta-label {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-align: center;
}

@media (max-width: 768px) {
  .comparison-grid { flex-direction: column; }
  .delta-center { transform: rotate(0deg); margin: var(--spacing-md) 0; }
}

/* ===== Profile Screen ===== */
.profile-screen {
  animation: fadeIn 0.4s ease-out;
  max-width: 1160px;
  margin: 0 auto;
}

.profile-hero {
  margin-bottom: var(--spacing-xl);
}

.profile-subtitle {
  max-width: 640px;
  color: var(--color-text-muted);
  margin-top: 10px;
  font-size: 1.02rem;
}

.eyebrow,
.section-kicker {
  display: inline-block;
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-primary-glow);
  font-weight: 700;
}

.profile-layout {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.profile-rail,
.profile-main {
  overflow: hidden;
}

.profile-rail {
  position: sticky;
  top: 96px;
}

.profile-main {
  padding: var(--spacing-xl);
}

.account-header {
  padding: 28px;
  background:
    radial-gradient(circle at top, rgba(139, 92, 246, 0.18), transparent 56%),
    rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.user-avatar {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--color-primary), #8b5cf6);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
}

.user-meta h3 {
  margin-bottom: 4px;
  font-size: 1.5rem;
}

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

.rail-section {
  padding: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.plan-card {
  margin-top: 14px;
  padding: 20px;
  border-radius: calc(var(--radius) - 4px);
  background:
    linear-gradient(180deg, rgba(139, 92, 246, 0.12), rgba(255, 255, 255, 0.03));
  border: 1px solid rgba(139, 92, 246, 0.25);
}

.plan-card.is-paid {
  background:
    linear-gradient(180deg, rgba(16, 185, 129, 0.12), rgba(255, 255, 255, 0.03));
  border-color: rgba(16, 185, 129, 0.28);
}

.plan-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.plan-name {
  font-size: 1.7rem;
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1;
}

.plan-status {
  margin-top: 6px;
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

.plan-badge {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: #f5f3ff;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.plan-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.plan-stat {
  padding: 12px;
  border-radius: 16px;
  background: rgba(8, 10, 18, 0.58);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.plan-stat-label,
.mini-stat-label {
  display: block;
  margin-bottom: 6px;
  color: var(--color-text-muted);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.plan-stat strong,
.mini-stat strong {
  color: #fff;
  font-size: 0.95rem;
  line-height: 1.35;
}

.rail-actions {
  margin-top: 18px;
}

.rail-actions .btn {
  width: 100%;
}

.compact-metrics {
  display: grid;
  gap: 14px;
}

.mini-stat {
  padding: 14px 0 0;
}

.mini-stat + .mini-stat {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.account-form {
  padding: 0;
}

.form-section {
  margin-bottom: var(--spacing-xl);
}

.form-section:last-child {
  margin-bottom: 0;
}

.form-section + .form-section {
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.section-heading {
  display: block;
  margin-bottom: 20px;
}

.section-heading h4 {
  margin-top: 8px;
  font-size: 1.18rem;
  color: #fff;
  line-height: 1.2;
  max-width: none;
}

.section-heading p {
  margin-top: 10px;
  max-width: 40rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
}

.switch-container {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}

.switch-container input {
  display: none;
}

.switch-slider {
  width: 44px;
  height: 24px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  position: relative;
  transition: background-color 0.3s ease;
}

.switch-slider::before {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  background-color: #fff;
  border-radius: 50%;
  left: 3px;
  top: 3px;
  transition: transform 0.3s ease;
}

input:checked + .switch-slider {
  background-color: var(--color-primary);
}

input:checked + .switch-slider::before {
  transform: translateX(20px);
}

.switch-label {
  font-size: 1rem;
  color: #fff;
  font-weight: 500;
}

.form-actions {
  margin-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: var(--spacing-xl);
}

@media (max-width: 768px) {
  .profile-layout {
    grid-template-columns: 1fr;
  }

  .profile-rail {
    position: static;
  }

  .profile-main {
    padding: var(--spacing-lg);
  }

  .section-heading {
    display: block;
  }

  .section-heading p {
    max-width: none;
  }

  .plan-stats,
  .form-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== Dashboard Screen ===== */
.dashboard-screen {
  animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: var(--spacing-xl);
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.dashboard-header .subtitle {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  margin-top: 4px;
}

.section-container {
  margin-top: calc(var(--spacing-xl) * 1.5);
}

.section-container h2 {
  margin-bottom: var(--spacing-lg);
  font-size: 1.5rem;
  color: #fff;
  border-left: 4px solid var(--color-primary);
  padding-left: 12px;
}

.dashboard-screen .summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.dashboard-screen .summary-card {
  background-color: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius);
  padding: var(--spacing-lg);
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.dashboard-screen .summary-card:hover {
  transform: translateY(-2px);
  background-color: rgba(255, 255, 255, 0.04);
}

.dashboard-screen .summary-card .stat-value {
  font-size: 2.25rem;
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(to right, #fff, #c4b5fd);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.dashboard-screen .summary-card .stat-label {
  font-size: 0.85rem;
  font-family: var(--font-display);
  color: var(--color-text-muted);
  margin-top: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.dashboard-screen .streak-icon {
  font-size: 1.8rem;
  display: block;
  margin-bottom: 8px;
}

.dashboard-screen .history-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.dashboard-screen .history-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px var(--spacing-md);
  background-color: rgba(255, 255, 255, 0.02);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.95rem;
  transition: all 0.2s ease;
  margin-bottom: var(--spacing-sm);
}

.dashboard-screen .history-item:hover {
  background-color: rgba(255, 255, 255, 0.04);
  transform: translateX(4px);
  border-color: rgba(255, 255, 255, 0.1);
}

.history-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.date-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.03);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  min-width: 64px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.date-badge .day {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #fff;
}

.date-badge .time {
  font-size: 0.7rem;
  color: var(--color-text-muted);
}

.category-info {
  display: flex;
  flex-direction: column;
}

.history-category {
  font-size: 1.1rem;
  font-family: var(--font-display);
  font-weight: 600;
  color: #fff;
}

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

.history-scores {
  display: flex;
  gap: var(--spacing-md);
}

.score-set {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.set-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  color: var(--color-text-muted);
  font-weight: 600;
  letter-spacing: 0.05em;
}

.dashboard-screen .history-end {
  text-align: center;
  padding: var(--spacing-lg);
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.profile-screen .success-message {
  padding: 12px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  margin-bottom: var(--spacing-md);
  background-color: var(--color-success-bg);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

/* ===== Utility: Screen Error / Empty State ===== */
.screen-error {
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--color-text-muted);
}

.screen-error p {
  margin-bottom: var(--spacing-lg);
  font-size: 1.1rem;
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
  .nav-bar .nav-container {
    flex-wrap: wrap;
    gap: var(--spacing-md);
  }

  .nav-links {
    order: 3;
    width: 100%;
    justify-content: center;
  }

  .nav-user-email {
    max-width: 120px;
  }

  .feedback-screen .scores-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .comparison-screen .scores-comparison {
    flex-direction: column;
    align-items: center;
  }

  .dashboard-screen .summary-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .landing-hero h1 {
    font-size: 2.5rem;
  }
}

/* ===== Footer ===== */
.app-footer {
  text-align: center;
  padding: var(--spacing-xl) 0;
  margin-top: auto;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  font-family: var(--font-display);
}

.brand-dexspace {
  font-weight: 800;
  background: linear-gradient(to right, #3b82f6, #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 0.05em;
  margin-left: 4px;
}

.app-footer .copyright {
  margin-top: 8px;
  font-size: 0.75rem;
  color: #52525b; /* Very subtle text for copyright */
  letter-spacing: 0.02em;
}