:root {
    --bg-primary: #0f0f14;
    --bg-secondary: #1a1a24;
    --bg-tertiary: #252532;
    --text-primary: #f5f5f7;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --accent: #6366f1;
    --accent-hover: #818cf8;
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --border: #27272a;
    --shadow: rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.wizard-container {
    width: 100%;
    max-width: 600px;
    min-height: 480px;
    background: var(--bg-secondary);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px var(--shadow);
}

/* Header */
.wizard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 16px;
}

.step-indicator {
    display: flex;
    gap: 8px;
}

.step-indicator .step {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.step-indicator .step.active {
    background: var(--accent);
    color: white;
}

.step-indicator .step.completed {
    background: var(--success);
    color: white;
}

/* Step Content */
.step-content {
    flex: 1;
    padding: 32px 24px;
    display: none;
    flex-direction: column;
    animation: fadeIn 0.3s ease;
}

.step-content.active {
    display: flex;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.step-content h1 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 8px;
}

.step-content .description {
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.5;
}

.step-icon {
    display: flex;
    justify-content: center;
    margin-bottom: 24px;
}

/* Features List (Welcome) */
.features {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: auto;
}

.feature {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border-radius: 8px;
}

.feature-icon {
    font-size: 20px;
}

/* Check List (System Check) */
.check-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.check-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: var(--bg-tertiary);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.check-item .check-icon {
    font-size: 18px;
    min-width: 24px;
    text-align: center;
}

.check-item .check-icon.success { color: var(--success); }
.check-item .check-icon.error { color: var(--error); }
.check-item .check-icon.pending { color: var(--text-muted); }

.check-item .check-label {
    flex: 1;
}

.check-item .check-status {
    color: var(--text-muted);
    font-size: 13px;
}

/* Form Elements */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    transition: all 0.2s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.form-group input.error {
    border-color: var(--error);
}

.form-group .input-hint {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 6px;
}

.form-group .input-error {
    display: block;
    font-size: 12px;
    color: var(--error);
    margin-top: 6px;
    min-height: 16px;
}

.path-input {
    display: flex;
    gap: 8px;
}

.path-input input {
    flex: 1;
}

.btn-browse {
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-browse:hover {
    background: var(--accent);
    border-color: var(--accent);
}

/* Progress */
.progress-container {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.progress-bar {
    flex: 1;
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--accent-hover));
    border-radius: 4px;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 14px;
    font-weight: 600;
    color: var(--accent);
    min-width: 40px;
}

.install-steps {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.install-step {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    background: var(--bg-tertiary);
    border-radius: 6px;
    font-size: 14px;
    opacity: 0.6;
    transition: all 0.3s ease;
}

.install-step.active {
    opacity: 1;
    background: rgba(99, 102, 241, 0.15);
    border-left: 3px solid var(--accent);
}

.install-step.completed {
    opacity: 1;
}

.install-step .step-status {
    min-width: 20px;
    text-align: center;
}

/* Finish Options */
.finish-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 24px;
}

.checkbox-container {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border-radius: 8px;
    transition: all 0.2s ease;
}

.checkbox-container:hover {
    background: var(--bg-primary);
}

.checkbox-container input {
    display: none;
}

.checkbox-container .checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.checkbox-container input:checked + .checkmark {
    background: var(--accent);
    border-color: var(--accent);
}

.checkbox-container input:checked + .checkmark::after {
    content: '✓';
    color: white;
    font-size: 12px;
    font-weight: bold;
}

/* Footer */
.wizard-footer {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    border-top: 1px solid var(--border);
}

.spacer {
    flex: 1;
}

.btn {
    padding: 10px 24px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--accent);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background: var(--accent-hover);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-primary);
}

/* Success state icon */
.step-icon.success svg circle {
    stroke: var(--success);
}

.step-icon.success svg path {
    stroke: var(--success);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}