/* ============================================
   AlphaSignal Help Center - Modern Help System
   ============================================ */

:root {
    --help-bg: #ffffff;
    --help-bg-secondary: #f8fafc;
    --help-bg-tertiary: #f1f5f9;
    --help-border: #e2e8f0;
    --help-text: #1e293b;
    --help-text-secondary: #64748b;
    --help-text-muted: #94a3b8;
    --help-accent: #10b981;
    --help-accent-light: rgba(16, 185, 129, 0.1);
    --help-accent-hover: #059669;
    --help-overlay: rgba(15, 23, 42, 0.6);
    --help-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --help-radius: 16px;
    --help-radius-sm: 10px;
}

/* ============================================
   Help Command Palette (Cmd+K Modal)
   ============================================ */

.help-command-overlay {
    position: fixed;
    inset: 0;
    background: var(--help-overlay);
    backdrop-filter: blur(4px);
    z-index: 9999;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 12vh;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
}

.help-command-overlay.active {
    opacity: 1;
    visibility: visible;
}

.help-command-modal {
    width: 100%;
    max-width: 640px;
    background: var(--help-bg);
    border-radius: var(--help-radius);
    box-shadow: var(--help-shadow);
    transform: translateY(-20px) scale(0.95);
    transition: transform 0.2s ease;
    overflow: hidden;
    max-height: 70vh;
    display: flex;
    flex-direction: column;
}

.help-command-overlay.active .help-command-modal {
    transform: translateY(0) scale(1);
}

/* Search Header */
.help-search-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--help-border);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.help-search-icon {
    color: var(--help-text-muted);
    font-size: 1.1rem;
}

.help-search-input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 1rem;
    color: var(--help-text);
    outline: none;
    font-family: inherit;
}

.help-search-input::placeholder {
    color: var(--help-text-muted);
}

.help-search-shortcut {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.help-kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    padding: 0 0.4rem;
    background: var(--help-bg-tertiary);
    border: 1px solid var(--help-border);
    border-radius: 6px;
    font-size: 0.75rem;
    font-family: 'SF Mono', 'Monaco', 'Inconsolata', monospace;
    color: var(--help-text-secondary);
    font-weight: 500;
}

/* Results Container */
.help-results {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem;
}

.help-results::-webkit-scrollbar {
    width: 6px;
}

.help-results::-webkit-scrollbar-track {
    background: transparent;
}

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

/* Result Groups */
.help-group {
    margin-bottom: 0.5rem;
}

.help-group-title {
    padding: 0.5rem 0.75rem;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--help-text-muted);
}

/* Result Items */
.help-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: var(--help-radius-sm);
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
    color: var(--help-text);
}

.help-item:hover,
.help-item.selected {
    background: var(--help-accent-light);
}

.help-item.selected {
    background: var(--help-accent);
    color: white;
}

.help-item-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--help-bg-tertiary);
    border-radius: 8px;
    color: var(--help-accent);
    font-size: 0.95rem;
    flex-shrink: 0;
}

.help-item.selected .help-item-icon {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.help-item-content {
    flex: 1;
    min-width: 0;
}

.help-item-title {
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 0.1rem;
}

.help-item-desc {
    font-size: 0.8rem;
    color: var(--help-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.help-item.selected .help-item-desc {
    color: rgba(255, 255, 255, 0.8);
}

.help-item-shortcut {
    display: flex;
    gap: 0.25rem;
}

.help-item.selected .help-kbd {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
}

/* Footer */
.help-footer {
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--help-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--help-bg-secondary);
}

.help-footer-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--help-text-secondary);
}

.help-footer-nav span {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.help-footer-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.help-footer-btn {
    padding: 0.4rem 0.75rem;
    background: transparent;
    border: 1px solid var(--help-border);
    border-radius: 6px;
    font-size: 0.8rem;
    color: var(--help-text-secondary);
    cursor: pointer;
    transition: all 0.15s;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.help-footer-btn:hover {
    background: var(--help-bg-tertiary);
    color: var(--help-text);
}

/* ============================================
   Keyboard Shortcuts Panel
   ============================================ */

.shortcuts-panel {
    position: fixed;
    top: 0;
    right: -400px;
    width: 380px;
    height: 100vh;
    background: var(--help-bg);
    box-shadow: -8px 0 30px rgba(0, 0, 0, 0.1);
    z-index: 9998;
    transition: right 0.3s ease;
    display: flex;
    flex-direction: column;
}

.shortcuts-panel.active {
    right: 0;
}

.shortcuts-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--help-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.shortcuts-header h3 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--help-text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.shortcuts-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 8px;
    color: var(--help-text-secondary);
    cursor: pointer;
    transition: all 0.15s;
}

.shortcuts-close:hover {
    background: var(--help-bg-tertiary);
    color: var(--help-text);
}

.shortcuts-content {
    flex: 1;
    overflow-y: auto;
    padding: 1rem 1.5rem;
}

.shortcut-section {
    margin-bottom: 1.5rem;
}

.shortcut-section-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--help-text-muted);
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--help-border);
}

.shortcut-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0;
}

.shortcut-label {
    font-size: 0.9rem;
    color: var(--help-text);
}

.shortcut-keys {
    display: flex;
    gap: 0.25rem;
}

/* ============================================
   Onboarding Tour
   ============================================ */

.tour-overlay {
    position: fixed;
    inset: 0;
    z-index: 9990;
    pointer-events: none;
}

.tour-spotlight {
    position: absolute;
    border-radius: 8px;
    box-shadow: 0 0 0 9999px rgba(15, 23, 42, 0.75);
    transition: all 0.4s ease;
    pointer-events: none;
}

.tour-tooltip {
    position: absolute;
    width: 320px;
    background: var(--help-bg);
    border-radius: var(--help-radius);
    box-shadow: var(--help-shadow);
    padding: 1.25rem;
    z-index: 9991;
    animation: tourFadeIn 0.3s ease;
    pointer-events: auto;
}

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

.tour-tooltip::before {
    content: '';
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--help-bg);
    transform: rotate(45deg);
}

.tour-tooltip.top::before {
    bottom: -6px;
    left: 50%;
    margin-left: -6px;
}

.tour-tooltip.bottom::before {
    top: -6px;
    left: 50%;
    margin-left: -6px;
}

.tour-tooltip.left::before {
    right: -6px;
    top: 50%;
    margin-top: -6px;
}

.tour-tooltip.right::before {
    left: -6px;
    top: 50%;
    margin-top: -6px;
}

.tour-step-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.tour-step-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--help-accent);
    color: white;
    border-radius: 50%;
    font-size: 0.75rem;
    font-weight: 600;
}

.tour-step-count {
    font-size: 0.8rem;
    color: var(--help-text-muted);
}

.tour-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--help-text);
    margin-bottom: 0.5rem;
}

.tour-content {
    font-size: 0.9rem;
    color: var(--help-text-secondary);
    line-height: 1.5;
    margin-bottom: 1rem;
}

.tour-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.tour-skip {
    background: transparent;
    border: none;
    color: var(--help-text-muted);
    font-size: 0.85rem;
    cursor: pointer;
    padding: 0.5rem;
    transition: color 0.15s;
}

.tour-skip:hover {
    color: var(--help-text);
}

.tour-nav {
    display: flex;
    gap: 0.5rem;
}

.tour-btn {
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}

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

.tour-btn-secondary:hover {
    background: var(--help-border);
}

.tour-btn-primary {
    background: var(--help-accent);
    border: 1px solid var(--help-accent);
    color: white;
}

.tour-btn-primary:hover {
    background: var(--help-accent-hover);
}

/* ============================================
   Contextual Help Tooltips
   ============================================ */

[data-help] {
    position: relative;
}

.help-tooltip {
    position: absolute;
    z-index: 9000;
    width: 260px;
    padding: 0.875rem 1rem;
    background: var(--help-text);
    color: white;
    border-radius: var(--help-radius-sm);
    font-size: 0.85rem;
    line-height: 1.5;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(5px);
    transition: all 0.2s ease;
    pointer-events: none;
}

.help-tooltip.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.help-tooltip::before {
    content: '';
    position: absolute;
    width: 10px;
    height: 10px;
    background: var(--help-text);
    transform: rotate(45deg);
}

.help-tooltip.top::before {
    bottom: -5px;
    left: 50%;
    margin-left: -5px;
}

.help-tooltip.bottom::before {
    top: -5px;
    left: 50%;
    margin-left: -5px;
}

.help-tooltip-title {
    font-weight: 600;
    margin-bottom: 0.35rem;
    font-size: 0.9rem;
}

.help-tooltip-text {
    color: rgba(255, 255, 255, 0.85);
}

.help-tooltip-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-top: 0.5rem;
    color: var(--help-accent);
    font-size: 0.8rem;
    font-weight: 500;
}

/* Help trigger indicator */
.help-trigger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    background: var(--help-bg-tertiary);
    border: 1px solid var(--help-border);
    border-radius: 50%;
    font-size: 0.65rem;
    color: var(--help-text-muted);
    cursor: help;
    margin-left: 0.35rem;
    transition: all 0.15s;
}

.help-trigger:hover {
    background: var(--help-accent-light);
    border-color: var(--help-accent);
    color: var(--help-accent);
}

/* ============================================
   What's New Modal
   ============================================ */

.whats-new-overlay {
    position: fixed;
    inset: 0;
    background: var(--help-overlay);
    backdrop-filter: blur(4px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
}

.whats-new-overlay.active {
    opacity: 1;
    visibility: visible;
}

.whats-new-modal {
    width: 100%;
    max-width: 500px;
    max-height: 80vh;
    background: var(--help-bg);
    border-radius: var(--help-radius);
    box-shadow: var(--help-shadow);
    transform: translateY(20px) scale(0.95);
    transition: transform 0.3s ease;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.whats-new-overlay.active .whats-new-modal {
    transform: translateY(0) scale(1);
}

.whats-new-header {
    padding: 1.5rem 1.5rem 1rem;
    text-align: center;
    position: relative;
}

.whats-new-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.75rem;
    background: var(--help-accent-light);
    color: var(--help-accent);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.whats-new-header h2 {
    margin: 0;
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--help-text);
}

.whats-new-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 8px;
    color: var(--help-text-secondary);
    cursor: pointer;
    transition: all 0.15s;
}

.whats-new-close:hover {
    background: var(--help-bg-tertiary);
    color: var(--help-text);
}

.whats-new-content {
    flex: 1;
    overflow-y: auto;
    padding: 0 1.5rem 1.5rem;
}

.whats-new-item {
    padding: 1rem;
    background: var(--help-bg-secondary);
    border-radius: var(--help-radius-sm);
    margin-bottom: 0.75rem;
}

.whats-new-item:last-child {
    margin-bottom: 0;
}

.whats-new-item-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.whats-new-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--help-accent-light);
    color: var(--help-accent);
    border-radius: 8px;
    font-size: 0.9rem;
}

.whats-new-item-title {
    font-weight: 600;
    color: var(--help-text);
    font-size: 0.95rem;
}

.whats-new-item-desc {
    font-size: 0.875rem;
    color: var(--help-text-secondary);
    line-height: 1.5;
    padding-left: 2.5rem;
}

.whats-new-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--help-border);
    display: flex;
    justify-content: center;
}

.whats-new-btn {
    padding: 0.65rem 1.5rem;
    background: var(--help-accent);
    border: none;
    border-radius: 8px;
    color: white;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}

.whats-new-btn:hover {
    background: var(--help-accent-hover);
    transform: translateY(-1px);
}

/* ============================================
   Help Beacon (Pulsing indicator for new features)
   ============================================ */

.help-beacon {
    position: relative;
}

.help-beacon::after {
    content: '';
    position: absolute;
    top: -2px;
    right: -2px;
    width: 8px;
    height: 8px;
    background: var(--help-accent);
    border-radius: 50%;
    animation: beaconPulse 2s infinite;
}

@keyframes beaconPulse {
    0% {
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.6);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(16, 185, 129, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
    }
}

/* ============================================
   Help Button (Fixed in navbar or floating)
   ============================================ */

.help-nav-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.875rem;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.15s;
}

.help-nav-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
}

.help-nav-btn i {
    font-size: 0.9rem;
}

.help-nav-shortcut {
    font-size: 0.7rem;
    opacity: 0.7;
    font-family: 'SF Mono', 'Monaco', monospace;
}

/* ============================================
   Empty State
   ============================================ */

.help-empty {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--help-text-muted);
}

.help-empty-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
    opacity: 0.5;
}

.help-empty-title {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--help-text-secondary);
    margin-bottom: 0.25rem;
}

.help-empty-text {
    font-size: 0.85rem;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
    .help-command-modal {
        margin: 0 1rem;
        max-height: 80vh;
    }
    
    .shortcuts-panel {
        width: 100%;
        right: -100%;
    }
    
    .tour-tooltip {
        width: 280px;
    }
    
    .help-footer-nav {
        display: none;
    }
}

/* ============================================
   Progress Indicator for Onboarding
   ============================================ */

.tour-progress {
    display: flex;
    gap: 4px;
    margin-top: 0.75rem;
}

.tour-progress-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--help-border);
    transition: all 0.2s;
}

.tour-progress-dot.active {
    background: var(--help-accent);
    transform: scale(1.2);
}

.tour-progress-dot.completed {
    background: var(--help-accent);
}

/* ============================================
   Navbar Upgrade Button & Tier Badge
   ============================================ */

.upgrade-nav-btn {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    color: #000;
    border: none;
    font-weight: 600;
    font-size: 0.75rem;
    padding: 0.35rem 0.75rem;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    transition: all 0.2s ease;
    text-decoration: none;
}

.upgrade-nav-btn:hover {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: #000;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(251, 191, 36, 0.3);
}

.upgrade-nav-btn i {
    font-size: 0.7rem;
}