/* Reset et variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2c5282;
    --secondary-color: #48bb78;
    --danger-color: #e53e3e;
    --warning-color: #ed8936;
    --success-color: #38a169;
    --text-dark: #1a202c;
    --text-light: #4a5568;
    --bg-light: #f7fafc;
    --bg-white: #ffffff;
    --border-color: #e2e8f0;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

/* Login page */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
}

.login-box {
    background: var(--bg-white);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 400px;
    overflow: hidden;
}

.login-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #1a365d 100%);
    color: white;
    padding: 2rem;
    text-align: center;
}

.login-header h1 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.login-header p {
    font-size: 0.9rem;
    opacity: 0.9;
}

.login-box form {
    padding: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

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

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(44, 82, 130, 0.1);
}

.btn-login {
    width: 100%;
    padding: 0.875rem;
    font-size: 1rem;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, var(--primary-color) 0%, #1a365d 100%);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.login-footer {
    padding: 1.5rem;
    background: var(--bg-light);
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-light);
}

.error-message {
    background: #fed7d7;
    color: #c53030;
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1rem;
    text-align: center;
}

/* Dashboard */
.admin-container {
    min-height: 100vh;
    background: var(--bg-light);
}

.admin-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #1a365d 100%);
    color: white;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
}

.admin-header h1 {
    font-size: 1.5rem;
}

.admin-user {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-logout {
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    transition: background 0.3s ease;
}

.btn-logout:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Admin content */
.admin-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* Messages */
.message {
    padding: 1rem 1.5rem;
    border-radius: 6px;
    margin-bottom: 2rem;
    font-weight: 500;
}

.message.success {
    background: #c6f6d5;
    color: #22543d;
    border-left: 4px solid var(--success-color);
}

.message.warning {
    background: #feebc8;
    color: #7c2d12;
    border-left: 4px solid var(--warning-color);
}

.message.error {
    background: #fed7d7;
    color: #742a2a;
    border-left: 4px solid var(--danger-color);
}

/* Stats grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Upload section */
.upload-section {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.upload-section h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.upload-form {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.file-input-wrapper {
    flex: 1;
}

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

.file-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.875rem 1.5rem;
    background: var(--bg-light);
    border: 2px dashed var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.file-label:hover {
    border-color: var(--primary-color);
    background: #edf2f7;
}

.file-icon {
    font-size: 1.5rem;
}

.file-text {
    font-weight: 500;
    color: var(--text-dark);
}

.btn-upload {
    padding: 0.875rem 2rem;
    background: linear-gradient(135deg, var(--secondary-color) 0%, #2f855a 100%);
    color: white;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    white-space: nowrap;
}

.btn-upload:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.upload-info {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 6px;
}

.upload-info h3 {
    color: var(--primary-color);
    margin-bottom: 0.75rem;
    font-size: 1rem;
}

.upload-info ul {
    margin-left: 1.5rem;
}

.upload-info li {
    color: var(--text-light);
    margin-bottom: 0.25rem;
}

/* Imports history */
.imports-history {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.imports-history h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.imports-table {
    width: 100%;
    border-collapse: collapse;
}

.imports-table thead {
    background: var(--bg-light);
}

.imports-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-dark);
    border-bottom: 2px solid var(--border-color);
}

.imports-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-light);
}

.status-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
}

.status-badge.success {
    background: #c6f6d5;
    color: #22543d;
}

.status-badge.partial {
    background: #feebc8;
    color: #7c2d12;
}

.status-badge.failed {
    background: #fed7d7;
    color: #742a2a;
}

/* Actions section */
.actions-section {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.actions-section h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.action-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.btn-action {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-action:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.action-icon {
    font-size: 1.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .admin-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .admin-user {
        flex-direction: column;
    }
    
    .upload-form {
        flex-direction: column;
    }
    
    .btn-upload {
        width: 100%;
    }
    
    .imports-table {
        font-size: 0.85rem;
    }
    
    .imports-table th,
    .imports-table td {
        padding: 0.5rem;
    }
}