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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: #333;
}

.language-selector {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 1000;
}

.language-selector select {
    padding: 8px 30px 8px 12px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.9);
    color: #333;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.language-selector select:hover {
    background: white;
    border-color: rgba(255, 255, 255, 0.6);
}

.installer-container {
    max-width: 800px;
    margin: 40px auto;
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

.installer-header {
    text-align: center;
    padding: 40px 40px 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.logo {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.logo-wrapper {
    position: relative;
    display: inline-block;
    margin-bottom: 16px;
}

.logo-image {
    position: relative;
    z-index: 2;
    filter: drop-shadow(0 0 20px rgba(255, 255, 255, 0.3));
    animation: logoFloat 3s ease-in-out infinite;
}

.logo-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 160px;
    height: 160px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.4) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 1;
    animation: glow 2s ease-in-out infinite alternate;
}

.brand-name {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 28px;
    font-weight: 300;
    letter-spacing: 2px;
    color: rgba(255, 255, 255, 0.95);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    margin-top: 4px;
}

@keyframes glow {
    0% {
        opacity: 0.6;
        transform: translate(-50%, -50%) scale(1);
    }
    100% {
        opacity: 0.9;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

@keyframes logoFloat {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-8px);
    }
}

.installer-header h1 {
    font-size: 28px;
    margin-bottom: 10px;
}

.installer-header p {
    font-size: 17px;
    color: rgba(255, 255, 255, 1);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    opacity: 1;
}

.progress-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 30px 40px;
    background: #f8f9fa;
    border-bottom: 1px solid #e9ecef;
}

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

.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #e9ecef;
    color: #6c757d;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-bottom: 8px;
    transition: all 0.3s ease;
}

.step.active .step-number {
    background: #667eea;
    color: white;
}

.step.completed .step-number {
    background: #10b981;
    color: white;
}

.step-label {
    font-size: 12px;
    color: #6c757d;
    text-align: center;
}

.step.active .step-label {
    color: #667eea;
    font-weight: 600;
}

.step-connector {
    flex: 1;
    height: 2px;
    background: #e9ecef;
    margin: 0 10px;
    margin-bottom: 30px;
}

.step-connector.completed {
    background: #10b981;
}

.step-content {
    padding: 40px;
}

h2 {
    font-size: 24px;
    color: #333;
    margin-bottom: 10px;
}

p {
    color: #666;
    line-height: 1.6;
    margin-bottom: 20px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin: 30px 0;
}

.feature-card {
    padding: 20px;
    background: #f8f9fa;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    background: #e9ecef;
    transform: translateY(-2px);
}

.feature-icon {
    font-size: 40px;
    margin-bottom: 10px;
}

.feature-card h3 {
    font-size: 16px;
    color: #333;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 14px;
    color: #666;
    margin-bottom: 0;
}

.requirements-section {
    margin: 30px 0;
}

.requirements-section h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 15px;
}

.requirements-table {
    width: 100%;
    border-collapse: collapse;
    background: #f8f9fa;
    border-radius: 8px;
    overflow: hidden;
}

.requirements-table tr {
    border-bottom: 1px solid #e9ecef;
}

.requirements-table tr:last-child {
    border-bottom: none;
}

.requirements-table td {
    padding: 12px 16px;
}

.requirements-table td:first-child {
    font-weight: 500;
    color: #333;
}

.requirements-table td:last-child {
    text-align: right;
}

.status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
}

.status-badge.success {
    background: #d1fae5;
    color: #065f46;
}

.status-badge.error {
    background: #fee2e2;
    color: #991b1b;
}

.install-form {
    margin: 30px 0;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 15px;
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
}

.form-group small {
    display: block;
    margin-top: 6px;
    font-size: 13px;
    color: #6c757d;
}

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

.actions {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-top: 30px;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: #5568d3;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-success {
    background: #10b981;
    color: white;
}

.btn-success:hover:not(:disabled) {
    background: #059669;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

.btn-secondary {
    background: #e9ecef;
    color: #333;
}

.btn-secondary:hover {
    background: #dee2e6;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-loader {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.spinner {
    animation: spin 1s linear infinite;
}

.spinner-path {
    stroke-dasharray: 90, 150;
    stroke-dashoffset: 0;
    stroke-linecap: round;
    animation: dash 1.5s ease-in-out infinite;
}

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

@keyframes dash {
    0% {
        stroke-dasharray: 1, 150;
        stroke-dashoffset: 0;
    }
    50% {
        stroke-dasharray: 90, 150;
        stroke-dashoffset: -35;
    }
    100% {
        stroke-dasharray: 90, 150;
        stroke-dashoffset: -124;
    }
}

.success-icon {
    text-align: center;
    margin-bottom: 20px;
}

.credentials-box {
    background: #f8f9fa;
    border: 2px solid #e9ecef;
    border-radius: 12px;
    padding: 20px;
    margin: 30px 0;
}

.credentials-box h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 15px;
}

.credentials-box table {
    width: 100%;
    margin-bottom: 12px;
}

.credentials-box table td {
    padding: 8px 0;
}

.credentials-box .warning {
    font-size: 13px;
    color: #dc2626;
    margin: 0;
}

.next-steps {
    margin: 30px 0;
}

.next-steps h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 15px;
}

.next-steps ol {
    margin-left: 20px;
}

.next-steps li {
    padding: 8px 0;
    color: #666;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .installer-container {
        margin: 20px auto;
    }

    .installer-header {
        padding: 30px 20px 20px;
    }

    .progress-bar {
        flex-wrap: wrap;
        padding: 20px;
    }

    .step {
        flex: 0 0 auto;
        margin-bottom: 10px;
    }

    .step-connector {
        display: none;
    }

    .step-content {
        padding: 30px 20px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }
}