/* ============================================
   Wizard UI - Design System
   ============================================ */
:root {
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --primary-light: #dbeafe;
    --success: #10b981;
    --success-light: #d1fae5;
    --bg: #f1f5f9;
    --card-bg: #ffffff;
    --text: #0f172a;
    --text-secondary: #64748b;
    --text-hint: #94a3b8;
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    --error: #ef4444;

    --wizard-width: 680px;
    --wizard-height: 600px;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --radius-md: 10px;
    --shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-image: url('../images/low-contrast-linen.png');
    background-repeat: repeat;
    background-color: #00000011;
    color: var(--text);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    position: relative;
}

/* ============================================
   Wizard Container
   ============================================ */
.wizard-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
}

.wizard-header {
    position: fixed;
    top: 1rem;
    left: 1.5rem;
    z-index: 1000;
}

.wizard-header h1 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
    color: #1d1d1d;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.logo-icon {
    display: inline-block;
    vertical-align: middle;
}

/* ============================================
   Stepper (Inside Card)
   ============================================ */
.stepper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: var(--border-light);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    flex: 0 0 auto;
}

.step-number {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: white;
    color: var(--text-secondary);
    border: 2px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.step-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    font-weight: 500;
    transition: all 0.3s ease;
}

.step.active .step-number {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.step.active .step-label {
    color: var(--primary);
    font-weight: 600;
}

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

.step.completed .step-label {
    color: var(--success);
}

.step-line {
    flex: 1;
    height: 2px;
    background: var(--border);
    margin: 0 0.5rem;
    position: relative;
    top: -8px;
}

/* ============================================
   Wizard Card (Fixed Size)
   ============================================ */
.wizard-card {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    padding: 20px;
    width: 100%;
    max-width: var(--wizard-width);
    height: var(--wizard-height);
    position: relative;
    overflow: hidden;
}

.wizard-step {
    position: absolute;
    top: 110px; /* Space for 20px padding + stepper + margin */
    left: 20px;
    right: 20px;
    bottom: 90px; /* Space for navigation + 20px padding */
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    display: flex;
    flex-direction: column;
}

.wizard-step.active {
    opacity: 1;
    visibility: visible;
}

.step-title {
    margin: 0 0 var(--spacing-lg);
    font-size: 1.5rem;
    color: #1d1d1d;
    margin: 35px;
    margin-bottom: 0.25rem;
    text-align: center;
    vertical-align: middle;
    font-family: 'Roboto', sans-serif;
}

.step-subtitle {
    font-size: 0.9em;
    color: var(--text-secondary);
    text-align: center;
    margin: 0 35px 20px;
}

/* ============================================
   Form Sections
   ============================================ */
.form-section {
    flex: 1;
    overflow-y: auto;
    padding-right: 0.5rem;
}

.form-section.scrollable {
    max-height: calc(var(--wizard-height) - 200px);
}

.form-section::-webkit-scrollbar {
    width: 6px;
}

.form-section::-webkit-scrollbar-track {
    background: var(--bg);
    border-radius: 3px;
}

.form-section::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

.form-section::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

.section-description {
    color: var(--text-secondary);
    margin: 0 0 var(--spacing-md);
    font-size: 0.9rem;
}

.subsection {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
}

.subsection:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.subsection-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.025em;
    margin: 0 0 var(--spacing-md);
}

.form-row {
    margin-bottom: var(--spacing-md);
}

.form-row-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.form-row-grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

/* ============================================
   Form Elements
   ============================================ */
.form-field {
    display: flex;
    flex-direction: column;
}

.field-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 0.375rem;
}

.text-input,
.select-input,
.number-input {
    width: 100%;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    background: white;
}

.text-input:focus,
.select-input:focus,
.number-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.number-input {
    text-align: center;
}

/* Custom Checkbox */
.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: 6px;
    transition: background 0.2s ease;
    margin-bottom: var(--spacing-sm);
}

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

.checkbox-label input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.checkbox-custom {
    width: 20px;
    height: 20px;
    min-width: 20px;
    border: 2px solid var(--border);
    border-radius: 4px;
    position: relative;
    transition: all 0.2s ease;
    margin-top: 2px;
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom {
    background: var(--primary);
    border-color: var(--primary);
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
}

.label-text {
    font-weight: 500;
    color: var(--text);
    display: block;
}

.label-hint {
    font-size: 0.8rem;
    color: var(--text-hint);
    display: block;
    margin-top: 0.125rem;
}

/* ============================================
   Upload Zone
   ============================================ */
#upload-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

#drop-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius-md);
    padding: 2.5rem;
    margin-bottom: 20px;
    text-align: center;
    transition: all 0.2s ease;
    background: var(--bg);
}

#drop-zone.drag-over {
    border-color: var(--primary);
    background: var(--primary-light);
    transform: scale(1.02);
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.upload-primary {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0 0 var(--spacing-sm);
    color: var(--text);
}

.upload-secondary {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0 0 var(--spacing-lg);
}

.upload-secondary code {
    background: white;
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-size: 0.85rem;
    border: 1px solid var(--border);
}

.upload-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    max-width: 400px;
    margin: 0 auto;
}

.file-selected {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--success-light);
    border-radius: 6px;
    border: 1px solid var(--success);
}

.file-info-display {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.file-icon {
    font-size: 1.25rem;
}

.btn-remove-inline {
    margin-left: auto;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: none;
    background: var(--error);
    color: white;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-remove-inline:hover {
    transform: rotate(90deg);
    background: #dc2626;
}

/* ============================================
   Progress & Results
   ============================================ */
#status-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.progress-step {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    border-radius: 6px;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.progress-step.active {
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 600;
}

.progress-step.done {
    color: var(--success);
}

.status-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid currentColor;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    flex-shrink: 0;
}

.active .status-icon {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    animation: pulse 2s ease-in-out infinite;
}

.done .status-icon {
    background: var(--success);
    border-color: var(--success);
    color: white;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.result-success {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.success-icon {
    font-size: 4rem;
}

.result-success h2 {
    margin: 0 0 var(--spacing-sm);
    color: var(--success);
}

.result-success p {
    margin: 0;
    color: var(--text-secondary);
}

#download-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

#download-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.75rem;
    background: var(--primary);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.2s ease;
}

#download-links a:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

/* ============================================
   Wizard Navigation (Inside Card)
   ============================================ */
.wizard-nav {
    position: absolute;
    bottom: 20px;
    left: 20px;
    right: 20px;
    display: flex;
    gap: var(--spacing-md);
    justify-content: space-between;
    padding: var(--spacing-md);
    background: var(--border-light);
    border-radius: var(--radius-md);
    border-top: 1px solid var(--border);
}

.btn-nav {
    flex: 1;
    padding: 0.75rem var(--spacing-md);
    border: 1px solid var(--border);
    background: white;
    color: var(--text);
    border-radius: 6px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.btn-nav:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    background: var(--bg);
}

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

.btn-nav.btn-primary:hover:not(:disabled) {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
}

.btn-outline {
    background: white;
    color: var(--text);
    border: 1px solid var(--border);
    padding: 0.65rem var(--spacing-md);
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-outline:hover {
    background: var(--bg);
    border-color: var(--primary);
    color: var(--primary);
}

/* ============================================
   Utilities
   ============================================ */
.hidden {
    display: none !important;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
    body {
        padding: 1rem;
    }

    :root {
        --wizard-width: 100%;
        --wizard-height: 560px;
    }

    .stepper {
        padding: var(--spacing-sm);
    }

    .step-label {
        font-size: 0.65rem;
    }

    .step-number {
        width: 32px;
        height: 32px;
        font-size: 0.8rem;
    }

    .step-line {
        margin: 0 0.25rem;
    }

    .form-row-grid,
    .form-row-grid-4 {
        grid-template-columns: 1fr;
    }

    .upload-actions {
        grid-template-columns: 1fr;
    }

    .wizard-nav {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

/* ============================================
   Settings Panel
   ============================================ */

.settings-toggle {
    position: fixed;
    bottom: 1.5rem;
    left: 1.5rem;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--card-bg);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    transition: background 0.2s;
    z-index: 1000;
}

.settings-toggle:hover {
    background: var(--border-light);
}

.settings-panel {
    position: fixed;
    bottom: 4.5rem;
    left: 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    padding: var(--spacing-md);
    min-width: 220px;
    z-index: 1000;
}

.settings-header {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text);
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--border-light);
}

.settings-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text);
    cursor: pointer;
    margin-bottom: var(--spacing-sm);
}

.settings-field {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.settings-field label {
    white-space: nowrap;
}

.settings-field .number-input {
    width: 80px;
}

/* ============================================
   Connection Status
   ============================================ */

.connection-status {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.75rem;
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 500;
    z-index: 1000;
    background: var(--card-bg);
    border: 1px solid var(--border);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.connection-status.connected .status-dot {
    background: var(--success);
}

.connection-status.connected .status-text {
    color: var(--success);
}

.connection-status.disconnected .status-dot {
    background: #ef4444;
}

.connection-status.disconnected .status-text {
    color: #ef4444;
}