/* ==========================================================================
   ANDREAS FLATAU - CORPORATE LLM ONBOARDING STUDIO
   Perplexity & RelationFlow Enterprise Design System
   Clean, light, subtle, modern enterprise workspace.
   Strictly no neon, no cyan, no glowing colored outlines.
   Halved border radius on buttons, no emoji icons in chips.
   ========================================================================== */

:root {
    --ob-bg-main: #f8f9fa;
    --ob-bg-surface: #ffffff;
    --ob-bg-subtle: #f1f3f5;
    --ob-bg-hover: #e9ecef;
    --ob-bg-active: #dee2e6;
    
    --ob-sidebar-width: 280px;
    --ob-sidebar-collapsed-width: 68px;

    --ob-border-hairline: #e5e7eb;
    --ob-border-subtle: #d1d5db;
    --ob-border-focus: #111827;
    --ob-border-error: #ef4444;

    --ob-text-primary: #111827;
    --ob-text-secondary: #4b5563;
    --ob-text-muted: #6b7280;
    --ob-text-inverse: #ffffff;

    --ob-accent-dark: #1e293b;
    --ob-accent-hover: #0f172a;
    
    --ob-badge-bg: #f3f4f6;
    --ob-badge-text: #374151;
    --ob-badge-border: #e5e7eb;

    --ob-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --ob-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.05);

    /* Halved border radiuses */
    --ob-radius-xs: 4px;
    --ob-radius-sm: 6px;
    --ob-radius-md: 8px;
    --ob-radius-lg: 12px;

    --ob-font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --ob-font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
}

/* Global Reset */
* {
    box-sizing: border-box;
}

body.onboarding-body {
    background-color: var(--ob-bg-main);
    color: var(--ob-text-primary);
    font-family: var(--ob-font-sans);
    line-height: 1.5;
    margin: 0;
    padding: 0;
    height: 100vh;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Master App Container */
.ob-app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
    overflow: hidden;
    position: relative;
}

/* ==========================================================================
   LEFT SIDEBAR (COLLAPSIBLE RELATIONFLOW STYLE)
   ========================================================================== */
.ob-sidebar {
    width: var(--ob-sidebar-width);
    background: #ffffff;
    border-right: 1px solid var(--ob-border-hairline);
    display: flex !important;
    flex-direction: column;
    height: 100vh;
    transition: width 0.25s cubic-bezier(0.4, 0, 0.2, 1), transform 0.25s ease;
    flex-shrink: 0;
    z-index: 50;
    position: relative;
}

.ob-sidebar.collapsed {
    width: var(--ob-sidebar-collapsed-width);
}

/* Sidebar Top Brand Header */
.ob-sb-header {
    padding: 1rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--ob-border-hairline);
    min-height: 65px;
}

.ob-sb-brand {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    text-decoration: none;
    color: var(--ob-text-primary);
    overflow: hidden;
    white-space: nowrap;
}

.ob-sb-logo-img {
    height: 28px;
    width: auto;
    max-width: 48px;
    object-fit: contain;
    flex-shrink: 0;
}

.ob-sb-avatar-img {
    height: 32px;
    width: auto;
    max-width: 54px;
    object-fit: contain;
    flex-shrink: 0;
}

.ob-sb-logo-icon {
    width: 28px;
    height: 28px;
    background: var(--ob-accent-dark);
    color: #ffffff;
    border-radius: var(--ob-radius-xs);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.ob-sb-brand-text {
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: -0.01em;
    transition: opacity 0.2s ease;
}

.ob-sidebar.collapsed .ob-sb-brand-text,
.ob-sidebar.collapsed .ob-sb-nav-title,
.ob-sidebar.collapsed .ob-sb-step-title,
.ob-sidebar.collapsed .ob-sb-q-list,
.ob-sidebar.collapsed .ob-sb-user-info,
.ob-sidebar.collapsed .ob-sb-reset-btn span,
.ob-sidebar.collapsed .ob-sb-new-btn span {
    display: none;
}

.ob-sb-toggle-btn {
    background: none;
    border: 1px solid var(--ob-border-hairline);
    border-radius: var(--ob-radius-xs);
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--ob-text-secondary);
    transition: all 0.15s ease;
    flex-shrink: 0;
}

.ob-sb-toggle-btn:hover {
    background: var(--ob-bg-subtle);
    color: var(--ob-text-primary);
}

/* Sidebar Reset / Action Button */
.ob-sb-reset-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.5rem 0.65rem;
    background: var(--ob-bg-subtle);
    border: 1px solid var(--ob-border-hairline);
    border-radius: var(--ob-radius-sm);
    color: var(--ob-text-muted);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
}

.ob-sb-reset-btn:hover {
    background: #fee2e2;
    border-color: #fca5a5;
    color: #b91c1c;
}

/* Sidebar Navigation / Tree */
.ob-sb-nav {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem 0.5rem;
}

.ob-sb-section-group {
    margin-bottom: 1.25rem;
}

.ob-sb-nav-title {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--ob-text-muted);
    padding: 0 0.75rem 0.4rem 0.75rem;
}

.ob-sb-step-item {
    margin-bottom: 0.25rem;
}

.ob-sb-step-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.55rem 0.75rem;
    border-radius: var(--ob-radius-sm);
    color: var(--ob-text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
    user-select: none;
}

.ob-sb-step-header:hover {
    background: var(--ob-bg-subtle);
    color: var(--ob-text-primary);
}

.ob-sb-step-item.active .ob-sb-step-header {
    background: var(--ob-bg-subtle);
    color: var(--ob-text-primary);
    font-weight: 700;
}

.ob-sb-step-left {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    overflow: hidden;
    white-space: nowrap;
}

.ob-sb-step-num {
    width: 20px;
    height: 20px;
    border-radius: var(--ob-radius-xs);
    background: var(--ob-badge-bg);
    border: 1px solid var(--ob-badge-border);
    font-size: 0.7rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.ob-sb-step-item.active .ob-sb-step-num {
    background: var(--ob-accent-dark);
    color: #ffffff;
    border-color: var(--ob-accent-dark);
}

.ob-sb-q-list {
    margin: 0.2rem 0 0.5rem 1.8rem;
    padding: 0;
    list-style: none;
    border-left: 1px solid var(--ob-border-hairline);
}

.ob-sb-q-item {
    padding: 0.3rem 0.75rem;
    font-size: 0.8rem;
    color: var(--ob-text-muted);
    cursor: pointer;
    transition: color 0.15s ease;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ob-sb-q-item:hover {
    color: var(--ob-text-primary);
}

.ob-sb-q-item.active {
    color: var(--ob-accent-dark);
    font-weight: 600;
}

/* Sidebar Footer User Info */
.ob-sb-footer {
    padding: 1rem;
    border-top: 1px solid var(--ob-border-hairline);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-height: 65px;
}

.ob-sb-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--ob-radius-xs);
    background: var(--ob-accent-dark);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.ob-sb-user-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ob-text-primary);
    line-height: 1.2;
}

.ob-sb-user-role {
    font-size: 0.75rem;
    color: var(--ob-text-muted);
}

/* Mobile Sidebar Backdrop */
.ob-sidebar-backdrop {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(2px);
    z-index: 45;
}

.ob-sidebar-backdrop.active {
    display: block;
}

/* ==========================================================================
   MAIN CONTENT AREA (SPLIT WIZARD & LIVE CANVAS)
   ========================================================================== */
.ob-main-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
    background: var(--ob-bg-main);
    min-width: 0;
}

/* Top App Bar */
.ob-topbar {
    background: #ffffff;
    border-bottom: 1px solid var(--ob-border-hairline);
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 65px;
    flex-shrink: 0;
}

.ob-topbar-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.ob-mobile-toggle-btn {
    display: none;
    background: var(--ob-bg-subtle);
    border: 1px solid var(--ob-border-hairline);
    border-radius: var(--ob-radius-xs);
    width: 34px;
    height: 34px;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    cursor: pointer;
    color: var(--ob-text-primary);
}

.ob-topbar-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--ob-text-primary);
}

.ob-topbar-badge {
    background: var(--ob-badge-bg);
    border: 1px solid var(--ob-badge-border);
    color: var(--ob-text-secondary);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.2rem 0.6rem;
    border-radius: var(--ob-radius-xs);
}

.ob-topbar-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.ob-exit-link {
    font-size: 0.85rem;
    color: var(--ob-text-secondary);
    text-decoration: none;
    padding: 0.4rem 0.8rem;
    border-radius: var(--ob-radius-sm);
    transition: background 0.15s ease;
}

.ob-exit-link:hover {
    background: var(--ob-bg-subtle);
    color: var(--ob-text-primary);
}

/* Scrollable Workspace */
.ob-workspace {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
}

.ob-workspace-grid {
    max-width: 1350px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
    gap: 1.5rem;
    align-items: start;
}

/* Wizard Form Pane */
.ob-wizard-pane {
    background: var(--ob-bg-surface);
    border: 1px solid var(--ob-border-hairline);
    border-radius: var(--ob-radius-lg);
    box-shadow: var(--ob-shadow-sm);
    padding: 2rem;
}

/* Intro Card above workspace grid */
.ob-intro-card {
    max-width: 1350px;
    margin: 0 auto 1.5rem auto;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-left: 4px solid var(--ob-accent-dark);
    border-radius: var(--ob-radius-sm);
    padding: 1.15rem 1.4rem;
    transition: all 0.2s ease;
}

.ob-intro-card-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--ob-text-primary);
    margin-bottom: 0.35rem;
}

.ob-intro-card-text {
    font-size: 0.85rem;
    color: var(--ob-text-secondary);
    line-height: 1.5;
    margin: 0;
}

/* Progress Header inside Pane */
.ob-progress-wrapper {
    margin-bottom: 1.75rem;
}

.ob-progress-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.ob-step-indicator {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ob-text-primary);
}

.ob-progress-bar-bg {
    height: 4px;
    background: var(--ob-bg-subtle);
    border-radius: var(--ob-radius-xs);
    overflow: hidden;
}

.ob-progress-bar-fill {
    height: 100%;
    background: var(--ob-accent-dark);
    width: 20%;
    transition: width 0.3s ease;
}

.ob-step-header {
    margin-bottom: 1.75rem;
}

.ob-step-title {
    font-size: 1.45rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0 0 0.35rem 0;
    color: var(--ob-text-primary);
}

.ob-step-desc {
    color: var(--ob-text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

/* Question Group */
.ob-question-group {
    margin-bottom: 1.75rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--ob-border-hairline);
    scroll-margin-top: 2rem;
}

.ob-question-group:last-child {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 0.5rem;
}

.ob-question-label {
    display: block;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--ob-text-primary);
    margin-bottom: 0.65rem;
}

.ob-question-hint {
    font-size: 0.8rem;
    color: var(--ob-text-muted);
    font-weight: normal;
    margin-left: 0.35rem;
}

/* Chips Grid with Halved Border Radius & Centered Text */
.ob-chips-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.65rem;
}

.ob-chip {
    background: var(--ob-bg-subtle);
    border: 1px solid var(--ob-border-hairline);
    color: var(--ob-text-secondary);
    padding: 0.55rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--ob-radius-sm);
    cursor: pointer;
    transition: all 0.15s ease;
    user-select: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.ob-chip:hover {
    background: var(--ob-bg-hover);
    color: var(--ob-text-primary);
    border-color: var(--ob-border-subtle);
}

.ob-chip.selected {
    background: var(--ob-accent-dark);
    color: var(--ob-text-inverse);
    border-color: var(--ob-accent-dark);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

/* ==========================================================================
   30-MINUTE SMART SLOT PICKER (DAY-GROUPED + PLUS BUTTONS)
   ========================================================================== */
.ob-slots-container,
.ob-slots-grid {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    margin-top: 0.85rem;
    margin-bottom: 0.85rem;
}

.ob-day-group {
    background: #ffffff;
    border: 1px solid var(--ob-border-hairline);
    border-radius: var(--ob-radius-md);
    padding: 0.95rem 1.15rem;
    transition: all 0.18s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
}

.ob-day-group:hover {
    border-color: var(--ob-border-subtle);
}

.ob-day-group.has-selected {
    border-color: var(--ob-accent-dark);
    background: #fafbfc;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.06);
}

.ob-day-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.ob-day-title {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.ob-day-date {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--ob-text-primary);
    letter-spacing: -0.01em;
}

.ob-day-badge {
    font-size: 0.78rem;
    font-weight: 600;
    padding: 0.15rem 0.5rem;
    border-radius: var(--ob-radius-xs);
    display: inline-flex;
    align-items: center;
}

.ob-badge-heute {
    background: #ecfdf5;
    color: #047857;
    border: 1px solid #a7f3d0;
}

.ob-badge-morgen {
    background: #eff6ff;
    color: #1d4ed8;
    border: 1px solid #bfdbfe;
}

.ob-badge-uebermorgen,
.ob-badge-diese-woche {
    background: #f1f5f9;
    color: #334155;
    border: 1px solid #e2e8f0;
}

.ob-badge-naechste-woche {
    background: #f8fafc;
    color: #64748b;
    border: 1px solid #e2e8f0;
}

.ob-day-hint {
    font-size: 0.75rem;
    color: var(--ob-text-muted);
}

.ob-time-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
}

.ob-time-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    background: var(--ob-bg-subtle);
    border: 1px solid var(--ob-border-hairline);
    color: var(--ob-text-primary);
    padding: 0.45rem 0.8rem;
    font-size: 0.84rem;
    font-weight: 600;
    border-radius: var(--ob-radius-sm);
    cursor: pointer;
    transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    user-select: none;
}

.ob-time-btn:hover {
    background: #ffffff;
    border-color: var(--ob-accent-dark);
    color: var(--ob-accent-dark);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.ob-time-btn.selected {
    background: var(--ob-accent-dark);
    color: #ffffff;
    border-color: var(--ob-accent-dark);
    box-shadow: 0 2px 6px rgba(15, 23, 42, 0.18);
    transform: none;
}

.ob-time-check {
    display: none;
    font-size: 0.88rem;
    font-weight: 700;
    line-height: 1;
    color: #ffffff;
}

.ob-time-btn.selected .ob-time-check {
    display: inline-block;
}

/* Custom / Flexible Slot Option */
.ob-custom-slot-group {
    margin-top: 0.5rem;
}

.ob-custom-slot-btn {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.85rem 1.15rem;
    background: #fcfdfe;
    border: 1px dashed var(--ob-border-subtle);
    border-radius: var(--ob-radius-md);
    text-align: left;
    transition: all 0.15s ease;
    cursor: pointer;
}

.ob-custom-slot-btn:hover {
    background: #ffffff;
    border-color: var(--ob-accent-dark);
    transform: translateY(-1px);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.04);
}

.ob-custom-slot-btn.selected {
    background: var(--ob-accent-dark);
    color: #ffffff;
    border-style: solid;
    border-color: var(--ob-accent-dark);
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.2);
    transform: none;
}

.ob-custom-slot-left {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.ob-custom-slot-text {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.ob-custom-slot-text strong {
    font-size: 0.875rem;
    font-weight: 600;
}

.ob-custom-slot-sub {
    font-size: 0.78rem;
    color: var(--ob-text-secondary);
    line-height: 1.35;
}

.ob-custom-slot-btn.selected .ob-custom-slot-sub {
    color: rgba(255, 255, 255, 0.85);
}

/* Selected Slot Status Banner inside Step 15 */
.ob-selected-slot-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-left: 4px solid #16a34a;
    border-radius: var(--ob-radius-sm);
    padding: 0.8rem 1.1rem;
    margin-top: 0.95rem;
    box-shadow: 0 1px 3px rgba(22, 163, 74, 0.05);
}

.ob-slot-banner-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.ob-slot-banner-icon {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #16a34a;
    color: #ffffff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
}

.ob-slot-banner-text {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.ob-slot-banner-lbl {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #15803d;
}

.ob-slot-banner-val {
    font-size: 0.92rem;
    font-weight: 700;
    color: #14532d;
}

/* Note / Comment Fields */
.ob-comment-wrapper {
    margin-top: 0.5rem;
}

.ob-comment-input {
    width: 100%;
    min-height: 42px;
    background: var(--ob-bg-main);
    border: 1px solid var(--ob-border-hairline);
    border-radius: var(--ob-radius-sm);
    padding: 0.6rem 0.85rem;
    font-size: 0.85rem;
    color: var(--ob-text-primary);
    font-family: inherit;
    line-height: 1.4;
    resize: vertical;
    display: block;
    transition: border-color 0.15s ease, background 0.15s ease;
}

.ob-comment-input:focus {
    outline: none;
    border-color: var(--ob-border-focus);
    background: #ffffff;
}

.ob-comment-input::placeholder {
    color: var(--ob-text-muted);
}

/* Budget Slider Section */
.ob-slider-container {
    background: var(--ob-bg-subtle);
    border: 1px solid var(--ob-border-hairline);
    border-radius: var(--ob-radius-sm);
    padding: 1.25rem;
    margin-bottom: 0.75rem;
    transition: opacity 0.2s ease;
}

.ob-slider-container.disabled {
    opacity: 0.4;
    pointer-events: none;
}

.ob-slider-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 0.85rem;
}

.ob-slider-val {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--ob-text-primary);
    font-family: var(--ob-font-sans);
}

.ob-range-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: var(--ob-radius-xs);
    background: var(--ob-border-subtle);
    outline: none;
    margin: 0.5rem 0 1rem 0;
}

.ob-range-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: var(--ob-radius-xs);
    background: var(--ob-accent-dark);
    cursor: pointer;
    border: 2px solid #ffffff;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
}

.ob-range-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: var(--ob-radius-xs);
    background: var(--ob-accent-dark);
    cursor: pointer;
    border: 2px solid #ffffff;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
}

.ob-slider-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--ob-text-muted);
}

.ob-checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-size: 0.875rem;
    color: var(--ob-text-primary);
    cursor: pointer;
    user-select: none;
    margin-top: 0.65rem;
}

.ob-checkbox {
    width: 16px;
    height: 16px;
    accent-color: var(--ob-accent-dark);
    cursor: pointer;
}

/* File DropZone */
.ob-dropzone {
    border: 2px dashed var(--ob-border-hairline);
    border-radius: var(--ob-radius-sm);
    background: var(--ob-bg-main);
    padding: 1.75rem 1.25rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.15s ease;
}

.ob-dropzone:hover, .ob-dropzone.dragover {
    border-color: var(--ob-text-secondary);
    background: var(--ob-bg-subtle);
}

.ob-dropzone-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ob-text-primary);
    margin-bottom: 0.25rem;
}

.ob-dropzone-desc {
    font-size: 0.8rem;
    color: var(--ob-text-muted);
}

.ob-file-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.ob-file-item {
    background: #ffffff;
    border: 1px solid var(--ob-border-hairline);
    border-radius: var(--ob-radius-sm);
    padding: 0.65rem 0.85rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    transition: all 0.15s ease;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.02);
}

.ob-file-item.uploading {
    border-color: #93c5fd;
    background: #f8fafc;
}

.ob-file-item.done {
    border-color: #bbf7d0;
    background: #ffffff;
}

.ob-file-item.error {
    border-color: #fca5a5;
    background: #fef2f2;
}

.ob-file-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
}

.ob-file-item-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    min-width: 0;
    flex: 1;
}

.ob-file-item-icon {
    font-size: 1.15rem;
    line-height: 1;
    flex-shrink: 0;
}

.ob-file-item-name {
    font-weight: 600;
    color: var(--ob-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 0.86rem;
}

.ob-file-item-meta {
    font-size: 0.78rem;
    color: var(--ob-text-muted);
    white-space: nowrap;
    margin-left: 0.25rem;
}

.ob-file-status-badge {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.15rem 0.45rem;
    border-radius: var(--ob-radius-xs);
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.ob-file-status-badge.status-uploading {
    background: #eff6ff;
    color: #1d4ed8;
}

.ob-file-status-badge.status-done {
    background: #f0fdf4;
    color: #15803d;
}

.ob-file-status-badge.status-error {
    background: #fee2e2;
    color: #b91c1c;
}

.ob-file-progress-track {
    width: 100%;
    height: 5px;
    background: #e2e8f0;
    border-radius: 999px;
    overflow: hidden;
    margin-top: 0.15rem;
}

.ob-file-progress-fill {
    height: 100%;
    width: 0%;
    background: #0f172a;
    border-radius: 999px;
    transition: width 0.15s ease;
}

.ob-file-progress-fill.done {
    background: #16a34a;
}

.ob-file-progress-fill.error {
    background: #ef4444;
}

.ob-file-remove {
    background: none;
    border: none;
    color: var(--ob-text-muted);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 0.2rem 0.4rem;
    line-height: 1;
    border-radius: var(--ob-radius-xs);
    transition: all 0.15s ease;
}

.ob-file-remove:hover {
    color: #ef4444;
    background: #fee2e2;
}

/* Form Grid */
.ob-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.ob-input-field {
    width: 100%;
    background: #ffffff;
    border: 1px solid var(--ob-border-hairline);
    border-radius: var(--ob-radius-sm);
    padding: 0.65rem 0.85rem;
    font-size: 0.875rem;
    color: var(--ob-text-primary);
    transition: border-color 0.15s ease;
}

.ob-input-field:focus {
    outline: none;
    border-color: var(--ob-border-focus);
}

.ob-input-field.input-error {
    border-color: var(--ob-border-error) !important;
    background: #fef2f2;
}

/* Navigation Footer & Buttons */
.ob-wizard-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--ob-border-hairline);
}

.ob-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 0.4rem;
    padding: 0.75rem 1.35rem;
    font-family: var(--ob-font-sans);
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.4;
    border-radius: var(--ob-radius-sm);
    cursor: pointer;
    transition: all 0.15s ease;
    border: 1px solid transparent;
    text-decoration: none;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.ob-btn-primary {
    background: var(--ob-accent-dark);
    color: var(--ob-text-inverse);
}

.ob-btn-primary:hover {
    background: var(--ob-accent-hover);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.ob-btn-secondary {
    background: #ffffff;
    border-color: var(--ob-border-hairline);
    color: var(--ob-text-primary);
}

.ob-btn-secondary:hover {
    background: var(--ob-bg-subtle);
    border-color: var(--ob-border-subtle);
    color: var(--ob-text-primary);
}

/* Right Column Live Canvas (Zusammenfassung) */
.ob-canvas-pane {
    position: sticky;
    top: 1.5rem;
    background: var(--ob-bg-surface);
    border: 1px solid var(--ob-border-hairline);
    border-radius: var(--ob-radius-lg);
    box-shadow: var(--ob-shadow-sm);
    padding: 1.75rem;
}

.ob-canvas-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--ob-border-hairline);
}

.ob-canvas-title {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--ob-text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.ob-canvas-pulse {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #10b981;
}

.ob-blueprint-box {
    background: var(--ob-bg-main);
    border: 1px solid var(--ob-border-hairline);
    border-radius: var(--ob-radius-sm);
    padding: 1.25rem;
    font-size: 0.85rem;
}

.ob-bp-section {
    margin-bottom: 0.85rem;
    padding-bottom: 0.65rem;
    border-bottom: 1px dashed var(--ob-border-hairline);
}

.ob-bp-section:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.ob-bp-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--ob-text-muted);
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.ob-bp-value {
    font-weight: 600;
    color: var(--ob-text-primary);
}

.ob-bp-note {
    font-size: 0.75rem;
    color: var(--ob-text-secondary);
    font-style: italic;
    margin-top: 0.2rem;
}

/* Success View */
.ob-success-view {
    display: none;
    text-align: center;
    padding: 2rem 1rem;
}

.ob-success-title {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--ob-text-primary);
    margin-bottom: 0.5rem;
}

.ob-success-desc {
    color: var(--ob-text-secondary);
    font-size: 0.95rem;
    max-width: 580px;
    margin: 0 auto 1.5rem auto;
}

.ob-booked-slot-banner {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #166534;
    border-radius: var(--ob-radius-md);
    padding: 1.25rem;
    max-width: 600px;
    margin: 0 auto 1.5rem auto;
    text-align: center;
    font-size: 0.9rem;
}

.ob-export-actions {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
}

/* Custom In-Page HTML Validation Dialog Modal */
.ob-modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(15, 23, 42, 0.45);
    backdrop-filter: blur(6px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1200;
}

.ob-modal-card {
    background: #ffffff;
    border: 1px solid var(--ob-border-hairline);
    border-radius: var(--ob-radius-lg);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    padding: 2rem;
    width: 100%;
    max-width: 440px;
    text-align: left;
    animation: obModalPop 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes obModalPop {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

.ob-modal-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.ob-modal-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--ob-radius-xs);
    background: #fee2e2;
    color: #b91c1c;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    flex-shrink: 0;
}

.ob-modal-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin: 0;
    color: var(--ob-text-primary);
}

.ob-modal-list {
    margin: 0 0 1.5rem 0;
    padding-left: 1.25rem;
    color: var(--ob-text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

.ob-modal-btn {
    width: 100%;
    padding: 0.7rem 1rem;
    background: var(--ob-accent-dark);
    color: #ffffff;
    font-weight: 600;
    font-size: 0.9rem;
    border-radius: var(--ob-radius-sm);
    border: none;
    cursor: pointer;
    transition: background 0.15s ease;
}

.ob-modal-btn:hover {
    background: var(--ob-accent-hover);
}

/* Email Error & Focus Highlighting */
.ob-input-field.input-email-pulse {
    border-color: #ef4444 !important;
    box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.25) !important;
    animation: ob-pulse-glow 1.2s ease-in-out infinite alternate;
}

@keyframes ob-pulse-glow {
    0% {
        box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.2);
        background-color: #fef2f2;
    }
    100% {
        box-shadow: 0 0 0 6px rgba(239, 68, 68, 0.45);
        background-color: #ffffff;
    }
}

/* ==========================================================================
   RESPONSIVE LAYOUT BREAKPOINTS
   Sidebar remains always visible on Desktop & Tablets (>= 768px).
   On small mobile phones (< 768px), it becomes a sliding drawer with toggle button.
   ========================================================================== */
@media (max-width: 1100px) {
    :root {
        --ob-sidebar-width: 240px;
    }
    .ob-workspace-grid {
        grid-template-columns: minmax(0, 1.3fr) minmax(260px, 0.7fr);
        gap: 1rem;
    }
    .ob-wizard-pane {
        padding: 1.5rem;
    }
    .ob-canvas-pane {
        padding: 1.25rem;
    }
}

@media (max-width: 768px) {
    .ob-sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        transform: translateX(-100%);
        box-shadow: 0 0 20px rgba(0,0,0,0.15);
    }

    .ob-sidebar.mobile-open {
        transform: translateX(0);
    }

    .ob-mobile-toggle-btn {
        display: flex;
    }

    .ob-workspace-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .ob-canvas-pane {
        position: static;
    }
    
    .ob-form-grid {
        grid-template-columns: 1fr;
    }
}