/* Global Design System */
:root {
  --bg-color: hsl(230, 35%, 7%);
  --text-primary: hsl(220, 20%, 95%);
  --text-secondary: hsl(220, 15%, 70%);
  --text-muted: hsl(220, 10%, 50%);
  
  --primary: hsl(180, 100%, 45%);
  --primary-hover: hsl(180, 100%, 40%);
  --primary-glow: hsla(180, 100%, 45%, 0.15);
  
  --secondary: hsl(220, 20%, 20%);
  --secondary-hover: hsl(220, 20%, 25%);
  
  --danger: hsl(355, 85%, 55%);
  --danger-hover: hsl(355, 85%, 45%);
  --danger-glow: hsla(355, 85%, 55%, 0.2);
  
  --card-bg: hsla(230, 25%, 12%, 0.45);
  --card-border: hsla(230, 20%, 30%, 0.25);
  --card-border-active: hsla(180, 100%, 45%, 0.3);
  
  --input-bg: hsla(230, 25%, 8%, 0.6);
  --input-border: hsla(230, 20%, 30%, 0.4);
  --input-focus: hsl(180, 100%, 45%);
  
  --shadow-lg: 0 20px 40px -15px rgba(0, 0, 0, 0.5);
  
  --font-header: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-fast: all 0.15s ease;
}

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

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

/* Background mesh gradients */
.bg-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(140px);
  z-index: -1;
  opacity: 0.18;
  pointer-events: none;
}

.bg-glow-1 {
  background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
  top: -200px;
  left: -200px;
  animation: float-1 20s infinite alternate ease-in-out;
}

.bg-glow-2 {
  background: radial-gradient(circle, hsl(260, 100%, 55%) 0%, transparent 70%);
  bottom: -200px;
  right: -200px;
  animation: float-2 25s infinite alternate ease-in-out;
}

@keyframes float-1 {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(100px, 80px) scale(1.1); }
}

@keyframes float-2 {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-120px, -60px) scale(1.15); }
}

/* Scrollbar styles */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: hsla(230, 20%, 30%, 0.4);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: hsla(180, 100%, 45%, 0.4);
}

/* App Container */
.app-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid hsla(230, 20%, 30%, 0.2);
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo-icon {
  font-size: 2.5rem;
  filter: drop-shadow(0 0 10px var(--primary-glow));
}

.app-header h1 {
  font-family: var(--font-header);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, #ffffff 30%, var(--primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 400;
  margin-top: 0.2rem;
}

.security-badge {
  background: hsla(180, 100%, 45%, 0.08);
  border: 1px solid hsla(180, 100%, 45%, 0.2);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: 100px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.security-dot {
  width: 8px;
  height: 8px;
  background-color: var(--primary);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 8px var(--primary);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.5; }
  50% { transform: scale(1.1); opacity: 1; box-shadow: 0 0 12px var(--primary); }
  100% { transform: scale(0.95); opacity: 0.5; }
}

/* Layout */
.app-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: start;
  flex: 1;
}

/* Glassmorphic Cards */
.glass-card {
  background-color: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  transition: var(--transition-smooth);
}

.glass-card:hover {
  border-color: hsla(230, 20%, 35%, 0.35);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
}

.glass-card h2 {
  font-family: var(--font-header);
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
}

.card-desc {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 1.25rem;
}

/* Test Cases Panel */
.test-cases-card {
  margin-bottom: 1.5rem;
}

.preset-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-preset {
  background: var(--secondary);
  border: 1px solid var(--card-border);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.85rem;
  padding: 0.75rem 1.25rem;
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-fast);
}

.btn-preset:hover {
  background: var(--secondary-hover);
  transform: translateY(-2px);
  border-color: var(--text-secondary);
}

.btn-preset-danger {
  border-color: hsla(355, 85%, 55%, 0.2);
}

.btn-preset-danger:hover {
  background: var(--danger-glow);
  border-color: var(--danger);
  color: var(--danger);
}

.preset-icon {
  font-weight: bold;
}

/* Form Styles */
.form-card {
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-row {
  margin-bottom: 0;
}

.split-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.split-3 {
  display: grid;
  grid-template-columns: 1fr 1.2fr 1fr;
  gap: 1.25rem;
}

label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.2px;
}

input, select, textarea {
  background-color: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 10px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.85rem 1rem;
  transition: var(--transition-fast);
  width: 100%;
}

input::placeholder, textarea::placeholder {
  color: var(--text-muted);
}

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

select {
  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='hsl(220, 15%2C 70%29' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 1.2rem;
  padding-right: 2.5rem;
}

textarea {
  resize: vertical;
}

.field-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.1rem;
}

/* Primary Button */
.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, hsl(195, 100%, 45%) 100%);
  border: none;
  border-radius: 10px;
  color: hsl(230, 35%, 5%);
  cursor: pointer;
  font-family: var(--font-header);
  font-size: 1.05rem;
  font-weight: 700;
  padding: 1.1rem 2rem;
  transition: var(--transition-smooth);
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1.5rem;
  box-shadow: 0 8px 24px -6px rgba(0, 242, 254, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px -4px rgba(0, 242, 254, 0.4);
}

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

/* Spinner */
.spinner {
  width: 20px;
  height: 20px;
  border: 3px solid rgba(0, 0, 0, 0.15);
  border-top-color: hsl(230, 35%, 5%);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
}

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

.hidden {
  display: none !important;
}

/* Output Card / Display */
.output-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 500px;
}

.output-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid hsla(230, 20%, 30%, 0.2);
  padding-bottom: 1rem;
}

.btn-secondary {
  background: var(--secondary);
  border: 1px solid var(--card-border);
  color: var(--text-primary);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: var(--transition-fast);
}

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

/* Rejection Warning Banner */
.rejection-banner {
  background: var(--danger-glow);
  border: 1px solid var(--danger);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  animation: slide-down 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

.banner-title {
  color: var(--danger);
  font-family: var(--font-header);
  font-size: 1.15rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.banner-content {
  color: var(--text-primary);
  font-size: 0.9rem;
}

.rejection-details {
  background-color: rgba(0, 0, 0, 0.2);
  border-left: 3px solid var(--danger);
  font-family: monospace;
  margin: 1rem 0;
  padding: 0.85rem 1rem;
  border-radius: 0 8px 8px 0;
  white-space: pre-wrap;
  color: hsl(355, 95%, 75%);
}

.action-instructions {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* Output Placeholder & Display */
.output-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  border: 2px dashed hsla(230, 20%, 30%, 0.3);
  border-radius: 12px;
  padding: 3rem;
  text-align: center;
}

.placeholder-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.placeholder-icon {
  font-size: 3rem;
  opacity: 0.3;
}

.output-placeholder p {
  color: var(--text-muted);
  max-width: 320px;
  font-size: 0.9rem;
}

.output-content {
  background-color: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  flex: 1;
  padding: 1.5rem;
  overflow-y: auto;
  max-height: 600px;
}

.note-display {
  color: var(--text-primary);
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.95rem;
  white-space: pre-wrap;
  line-height: 1.6;
}

/* Footer */
.app-footer {
  margin-top: 3rem;
  text-align: center;
  padding: 1.5rem 0;
  border-top: 1px solid hsla(230, 20%, 30%, 0.15);
}

.app-footer p {
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
  .app-layout {
    grid-template-columns: 1fr;
  }
  .output-card {
    min-height: auto;
  }
}

@media (max-width: 600px) {
  .app-container {
    padding: 1rem;
  }
  .app-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .split-2, .split-3 {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .preset-buttons {
    flex-direction: column;
  }
  .btn-preset {
    width: 100%;
  }
}

/* Feedback Section CSS */
.feedback-container {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid hsla(230, 20%, 30%, 0.2);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.feedback-prompt {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.feedback-buttons {
  display: flex;
  gap: 1rem;
}

.btn-feedback-accept, .btn-feedback-reject {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-fast);
  width: auto;
}

.btn-feedback-accept {
  background: hsla(150, 80%, 40%, 0.1);
  border: 1px solid hsla(150, 80%, 40%, 0.3);
  color: hsl(150, 80%, 75%);
}

.btn-feedback-accept:hover {
  background: hsla(150, 80%, 40%, 0.25);
  border-color: hsl(150, 80%, 55%);
  transform: translateY(-1px);
}

.btn-feedback-reject {
  background: hsla(355, 85%, 55%, 0.1);
  border: 1px solid hsla(355, 85%, 55%, 0.3);
  color: hsl(355, 85%, 75%);
}

.btn-feedback-reject:hover {
  background: hsla(355, 85%, 55%, 0.25);
  border-color: hsl(355, 85%, 60%);
  transform: translateY(-1px);
}

.rejection-form-container {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  animation: slide-down 0.3s ease-out;
}

.rejection-form-container label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.feedback-success-msg {
  background: hsla(150, 80%, 40%, 0.1);
  border: 1px solid hsla(150, 80%, 40%, 0.3);
  border-radius: 10px;
  padding: 1rem;
  color: hsl(150, 80%, 75%);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  animation: slide-down 0.3s ease-out;
}

.success-icon {
  font-weight: bold;
}