/* =====================================================
   French Language Learning System - Main Styles
   ===================================================== */

/* Global Variables */
:root {
    --primary-color: #318ce7;
    --secondary-color: #3068ab;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #17a2b8;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --border-radius: 15px;
    --box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

/* Reset and Base Styles */
* {
    box-sizing: border-box;
}

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

/* French Card Component */
.french-card {
    background: #fff;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    border: none;
    overflow: hidden;
    transition: var(--transition);
}

.french-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

/* Gradient Backgrounds */
.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.bg-gradient-success {
    background: linear-gradient(135deg, var(--success-color) 0%, #20c997 100%);
}

.bg-gradient-warning {
    background: linear-gradient(135deg, var(--warning-color) 0%, #fd7e14 100%);
}

.bg-gradient-info {
    background: linear-gradient(135deg, var(--info-color) 0%, #20c997 100%);
}

.bg-gradient-danger {
    background: linear-gradient(135deg, var(--danger-color) 0%, #e74c3c 100%);
}

/* Navigation Tabs */
.nav-tabs {
    border-bottom: 2px solid #e9ecef;
    background: #fff;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.nav-tabs .nav-link {
    border: none;
    color: #6c757d;
    font-weight: 500;
    padding: 15px 25px;
    border-radius: 0;
    transition: var(--transition);
    position: relative;
}

.nav-tabs .nav-link:hover {
    border: none;
    color: var(--primary-color);
    background-color: rgba(102, 126, 234, 0.1);
}

.nav-tabs .nav-link.active {
    border: none;
    color: white;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.nav-tabs .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

/* Form Styles */
.form-control, .form-select {
    border: 2px solid #e9ecef;
    border-radius: 10px;
    padding: 12px 15px;
    transition: var(--transition);
    font-size: 1rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.form-control-lg, .form-select-lg {
    padding: 15px 20px;
    font-size: 1.1rem;
}

.form-label {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 8px;
}

/* Button Styles */
.btn {
    border-radius: 10px;
    font-weight: 600;
    padding: 10px 25px;
    transition: var(--transition);
    border: none;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-lg {
    padding: 15px 30px;
    font-size: 1.1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color) 0%, #20c997 100%);
    border: none;
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning-color) 0%, #fd7e14 100%);
    border: none;
    color: #fff;
}

.btn-info {
    background: linear-gradient(135deg, var(--info-color) 0%, #20c997 100%);
    border: none;
}

/* Card Headers */
.card-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border: none;
    padding: 20px;
    font-weight: 600;
}

/* Stats Cards */
.stats-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border-radius: var(--border-radius);
    padding: 25px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.stats-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    transform: rotate(45deg);
}

.stats-card .stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 10px;
}

.stats-card .stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

/* Feature Items */
.feature-item {
    display: flex;
    align-items: center;
    padding: 15px 0;
    border-bottom: 1px solid #e9ecef;
}

.feature-item:last-child {
    border-bottom: none;
}

.feature-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: 15px;
    flex-shrink: 0;
}

.feature-content h6 {
    margin-bottom: 5px;
    font-weight: 600;
}

.feature-content p {
    margin-bottom: 0;
    color: #6c757d;
}

/* Steps Navigation */
.steps-navigation {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: var(--border-radius);
    padding: 25px;
    margin-bottom: 30px;
}

.step-item {
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
}

.step-item.active .step-icon {
    background: linear-gradient(135deg, var(--success-color) 0%, #20c997 100%) !important;
    transform: scale(1.1);
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.3);
}

.step-item .step-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 10px;
    border: 3px solid #fff;
    transition: var(--transition);
}

.step-title {
    font-weight: 600;
    color: #fff;
    font-size: 0.9rem;
}

/* Form Steps */
.form-step {
    display: none;
    animation: fadeIn 0.5s ease;
}

.form-step.active {
    display: block;
}

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

/* Loading Animation */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Success Animation */
.success-animation {
    animation: successPulse 0.6s ease;
}

@keyframes successPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* Alert Styles */
.alert {
    border: none;
    border-radius: var(--border-radius);
    padding: 15px 20px;
}

.alert-info {
    background: linear-gradient(135deg, var(--info-color) 0%, #20c997 100%);
    color: white;
}

.alert-success {
    background: linear-gradient(135deg, var(--success-color) 0%, #20c997 100%);
    color: white;
}

.alert-warning {
    background: linear-gradient(135deg, var(--warning-color) 0%, #fd7e14 100%);
    color: white;
}

.alert-danger {
    background: linear-gradient(135deg, var(--danger-color) 0%, #e74c3c 100%);
    color: white;
}

/* Badge Styles */
.badge {
    border-radius: 20px;
    padding: 8px 15px;
    font-weight: 600;
}

/* Table Styles */
.table {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.table thead th {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border: none;
    font-weight: 600;
}

/* Modal Styles */
.modal-content {
    border-radius: var(--border-radius);
    border: none;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.modal-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border: none;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .steps-navigation {
        padding: 15px;
    }
    
    .step-icon {
        width: 40px !important;
        height: 40px !important;
    }
    
    .step-title {
        font-size: 0.8rem;
    }
    
    .stats-card .stat-number {
        font-size: 2rem;
    }
    
    .btn-lg {
        padding: 12px 25px;
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    .container-fluid {
        width: 95% !important;
    }
    
    .nav-tabs .nav-link {
        padding: 10px 15px;
        font-size: 0.9rem;
    }
    
    .card-header {
        padding: 15px;
    }
}

/* Print Styles */
@media print {
    .nav-tabs,
    .btn,
    .modal {
        display: none !important;
    }
    
    .french-card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}