/* Style général */
:root {
    --primary-color: #3498db;
    --primary-dark: #2980b9;
    --secondary-color: #2ecc71;
    --secondary-dark: #27ae60;
    --text-color: #2c3e50;
    --bg-color: #f9f9f9;
    --panel-bg: #ffffff;
    --border-color: #dfe6e9;
    --success-color: #2ecc71;
    --error-color: #e74c3c;
    --warning-color: #f39c12;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background-color: var(--panel-bg);
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    padding: 25px;
}

/* En-tête */
header {
    text-align: center;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

h1 {
    color: var(--text-color);
    margin-bottom: 5px;
    font-weight: 600;
}

h1 strong {
    color: var(--primary-color);
    font-weight: 700;
}

.subtitle {
    color: #7f8c8d;
    font-size: 0.95rem;
}

/* Zone de téléchargement de fichier */
.file-upload-container {
    margin: 20px 0;
    text-align: center;
}

.file-upload-label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 20px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.file-upload-label:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.upload-icon {
    margin-right: 10px;
    font-size: 1.2rem;
}

input[type="file"] {
    display: none;
}

.file-info {
    margin-top: 10px;
    color: #7f8c8d;
    font-size: 0.9rem;
}

/* Zone d'édition */
.editor-container {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin: 25px 0;
}

.editor-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.editor-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color);
}

.editor-controls {
    display: flex;
    gap: 8px;
}

textarea {
    width: 100%;
    min-height: 300px;
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.5;
    resize: vertical;
    transition: all 0.3s;
}

textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

textarea.expanded {
    min-height: 600px;
}

#inputCode {
    background-color: #f8f9fa;
}

#outputCode {
    background-color: #f0f7ff;
}

/* Boutons */
.buttons-container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin: 20px 0;
}

button {
    font-family: inherit;
    font-weight: 600;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.main-btn {
    background-color: var(--secondary-color);
    color: white;
    padding: 12px 25px;
    font-size: 1rem;
    min-width: 200px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.main-btn:hover {
    background-color: var(--secondary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.secondary-btn {
    background-color: var(--primary-color);
    color: white;
    padding: 12px 20px;
    font-size: 0.95rem;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.secondary-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.small-btn {
    background-color: transparent;
    color: var(--text-color);
    padding: 5px 10px;
    font-size: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

.small-btn:hover {
    background-color: #f1f2f6;
    border-color: #bdc3c7;
}

.retour {
    background-color: #95a5a6;
    color: white;
    text-decoration: none;
    padding: 12px 20px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.retour:hover {
    background-color: #7f8c8d;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

/* Zone de status */
.status-box {
    margin: 20px 0;
    padding: 15px;
    border-radius: 6px;
    background-color: #f8f9fa;
    border-left: 5px solid #95a5a6;
    min-height: 20px;
    transition: all 0.3s;
}

.success {
    border-left-color: var(--success-color);
    background-color: #eafaf1;
    color: #27ae60;
}

.error {
    border-left-color: var(--error-color);
    background-color: #fdedec;
    color: #c0392b;
}

.warning {
    border-left-color: var(--warning-color);
    background-color: #fef9e7;
    color: #d35400;
}

/* Style pour les traces d'erreur */
.status-box pre {
    background-color: #f1f2f6;
    padding: 10px;
    border-radius: 4px;
    overflow-x: auto;
    font-size: 12px;
    margin-top: 10px;
    color: #e74c3c;
}

/* Section d'informations */
.info-section {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.info-section h3 {
    text-align: center;
    margin-bottom: 15px;
    color: var(--text-color);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-top: 15px;
}

.feature {
    background-color: #f8f9fa;
    padding: 15px;
    border-radius: 6px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
}

.feature h4 {
    color: var(--primary-color);
    font-size: 1rem;
    margin-bottom: 8px;
}

.feature p {
    color: #7f8c8d;
    font-size: 0.9rem;
}

/* Indicateur de chargement */
.loading {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
    margin-right: 8px;
}

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

/* Design responsive */
@media (min-width: 768px) {
    .editor-container {
        flex-direction: row;
    }
    
    .editor-panel {
        flex: 1;
    }
    
    .buttons-container {
        flex-direction: column;
        margin: 0 15px;
    }
}

@media (max-width: 767px) {
    .container {
        padding: 15px;
    }
    
    .buttons-container {
        flex-direction: column;
        width: 100%;
    }
    
    .main-btn, .secondary-btn, .retour {
        width: 100%;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
}