:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --success-color: #2ecc71;
    --danger-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #34495e;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Tajawal', 'Arial', sans-serif;
    background-color: #f5f7fa;
    color: var(--dark-color);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Header Styles */
header {
    text-align: center;
    margin-bottom: 2rem;
}

header h1 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 2.5rem;
}

header p {
    color: var(--secondary-color);
    font-size: 1.2rem;
}

/* Card Styles */
.card {
    background-color: white;
    border-radius: 8px;
    padding: 2rem;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

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

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
    color: var(--secondary-color);
}

input, textarea, select {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

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

.form-actions {
    display: flex;
    justify-content: flex-end;
}

button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

button:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
}

/* Loading Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(52, 152, 219, 0.2);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    margin: 0 auto;
    animation: spin 1s linear infinite;
}

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

#loading {
    text-align: center;
    padding: 2rem;
}

#loading p {
    margin-top: 1rem;
    font-size: 1.2rem;
    color: var(--secondary-color);
}

/* Result Styles */
.result-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--primary-color);
    color: white;
    text-decoration: none;
    padding: 0.8rem 1.5rem;
    border-radius: 4px;
    transition: var(--transition);
}

.btn:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
}

/* Error Styles */
.error-card {
    background-color: #fef2f2;
    border-left: 4px solid var(--danger-color);
}

.error-card h2 {
    color: var(--danger-color);
}

.error-btn {
    background-color: var(--danger-color);
}

.error-btn:hover {
    background-color: #c0392b;
}

/* Recent Apps Section */
.recent-apps {
    margin-top: 3rem;
}

.recent-apps h2 {
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
    border-bottom: 2px solid var(--light-color);
    padding-bottom: 0.5rem;
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.app-card {
    background-color: white;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.app-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
}

.app-card h3 {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.app-card .date {
    color: #777;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.app-card .app-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.app-card .app-btn {
    flex: 1;
    text-align: center;
    font-size: 0.9rem;
    padding: 0.5rem;
}

/* Log styles */
.log-btn {
    background-color: #f39c12;
}

.log-btn:hover {
    background-color: #d35400;
}

/* Footer Styles */
footer {
    text-align: center;
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--light-color);
    color: #777;
}

/* Utility Classes */
.hidden {
    display: none;
}

.loading-apps {
    grid-column: 1 / -1;
    text-align: center;
    padding: 2rem;
    color: #777;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .card {
        padding: 1.5rem;
    }
    
    .apps-grid {
        grid-template-columns: 1fr;
    }
    
    .result-actions {
        flex-direction: column;
    }
}

/* RTL-specific adjustments */
.form-actions {
    justify-content: flex-start;
}