/**
 * AI Creator UI Styles
 * Sprint 10 - Teacher-AI Copilot
 * Adapté avec la palette de couleurs ErgoMate
 */

.ai-creator-container {
    max-width: 900px;
    margin: 2rem auto;
    padding: 2rem;
    background: var(--card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    border: 1px solid var(--card-border);
    transition: all var(--transition-base);
}

.ai-creator-header {
    text-align: center;
    margin-bottom: 2rem;
}

.ai-creator-header h2 {
    background: var(--btn-bg);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.ai-creator-header p {
    color: var(--muted);
}

/* Stepper */
.ai-creator-stepper {
    display: flex;
    justify-content: space-between;
    margin-bottom: 3rem;
    position: relative;
}

.ai-creator-stepper::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: var(--card-border);
    z-index: 0;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--card-border);
    color: var(--muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-bottom: 0.5rem;
    transition: all var(--transition-base);
}

.step.active .step-number {
    background: var(--btn-bg);
    color: var(--btn-fg);
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
}

.step.completed .step-number {
    background: var(--accent);
    color: white;
    box-shadow: 0 4px 12px rgba(34, 197, 94, 0.3);
}

.step-label {
    font-size: 0.85rem;
    color: var(--muted);
}

.step.active .step-label {
    color: var(--fg);
    font-weight: 600;
}

/* Upload Zone */
.upload-zone {
    border: 2px dashed var(--card-border);
    border-radius: var(--radius-lg);
    padding: 3rem;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
    margin: 2rem 0;
    background: var(--card);
}

.upload-zone:hover {
    background: var(--card-hover);
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.upload-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.upload-zone p {
    margin: 0.5rem 0;
    color: var(--muted);
}

/* Progress Bar */
.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--card-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin: 1rem 0;
}

.progress-fill {
    height: 100%;
    background: var(--btn-bg);
    transition: width var(--transition-base);
    animation: progressAnimation 2s ease-in-out infinite;
}

@keyframes progressAnimation {
    0% {
        width: 0%;
    }
    50% {
        width: 70%;
    }
    100% {
        width: 100%;
    }
}

/* Loader */
.loader {
    border: 4px solid var(--card-border);
    border-top: 4px solid var(--accent);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 2rem auto;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* Form Elements */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--fg);
    margin-bottom: 0.5rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--card-border);
    border-radius: var(--radius-md);
    background: var(--card);
    color: var(--fg);
    font-size: 1rem;
    transition: all var(--transition-base);
    font-family: inherit;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
}

.form-control[multiple] {
    min-height: 150px;
}

/* Radio Group */
.radio-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.radio-group label {
    display: flex;
    align-items: center;
    padding: 0.75rem;
    border: 2px solid var(--card-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    background: var(--card);
}

.radio-group label:hover {
    background: var(--card-hover);
    border-color: var(--accent);
    transform: translateX(4px);
}

.radio-group input[type="radio"] {
    margin-right: 0.75rem;
    accent-color: var(--accent);
}

.radio-group label:has(input:checked) {
    background: var(--card-hover);
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-primary {
    background: var(--btn-bg);
    color: var(--btn-fg);
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
}

.btn-primary:hover {
    background: var(--btn-bg-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(14, 165, 233, 0.4);
}

.btn-secondary {
    background: var(--btn-ghost);
    color: var(--fg);
    border: 1px solid var(--card-border);
}

.btn-secondary:hover {
    background: var(--btn-ghost-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-success {
    background: var(--accent);
    color: white;
    box-shadow: 0 4px 12px rgba(34, 197, 94, 0.3);
}

.btn-success:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(34, 197, 94, 0.4);
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
}

/* Text Preview */
.text-preview {
    background: var(--card-hover);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--accent);
    max-height: 300px;
    overflow-y: auto;
    margin: 1rem 0;
    font-family: monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--fg);
}

/* Generated Content Preview */
.generated-content-preview {
    background: var(--card-hover);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--accent);
    margin: 1rem 0;
    border: 1px solid var(--card-border);
}

.generated-content-preview h5 {
    color: var(--fg);
    margin-bottom: 0.75rem;
    font-weight: 700;
}

.generated-content-preview p {
    margin: 0.5rem 0;
    color: var(--muted);
}

.generated-content-preview strong {
    color: var(--fg);
}

/* Messages */
.error-message {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    padding: 1rem;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--danger);
    margin: 1rem 0;
    animation: slideIn var(--transition-base);
}

.success-message {
    background: rgba(34, 197, 94, 0.1);
    color: var(--accent);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--accent);
    margin: 1rem 0;
    animation: slideIn var(--transition-base);
}

.success-message h4 {
    margin-top: 0;
    color: var(--accent);
    font-weight: 700;
}

.success-message p {
    margin: 0.5rem 0;
    color: var(--fg);
}

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

/* Dark Mode Support */
html[data-theme="dark"] .error-message {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger-light);
}

html[data-theme="dark"] .success-message {
    background: rgba(34, 197, 94, 0.2);
}

/* Responsive */
@media (max-width: 768px) {
    .ai-creator-container {
        padding: 1rem;
        margin: 1rem;
    }

    .ai-creator-stepper {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }

    .ai-creator-stepper::before {
        display: none;
    }

    .upload-zone {
        padding: 2rem 1rem;
    }

    .form-actions {
        flex-direction: column;
    }

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

/* Scrollbar personnalisée */
.text-preview::-webkit-scrollbar {
  height: 8px;
  width: 8px;
}

.text-preview::-webkit-scrollbar-track {
  background: var(--card);
  border-radius: var(--radius-sm);
}

.text-preview::-webkit-scrollbar-thumb {
  background: var(--card-border);
  border-radius: var(--radius-sm);
}

.text-preview::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}