:root {
    /* BASE DARK THEME (Original Default) */
    --bg-color: #0f172a;
    --bg-grad-blue: rgba(59, 130, 246, 0.15);
    --bg-grad-blue-subtle: rgba(59, 130, 246, 0.1);
    --bg-grad-purple: rgba(139, 92, 246, 0.15);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --accent-light: #60a5fa;
    --accent-purple: #c084fc;
    
    --glass-bg: rgba(30, 41, 59, 0.7);
    --glass-bg-hover: rgba(30, 41, 59, 0.85);
    --glass-hover-medium: rgba(30, 41, 59, 0.8);
    --glass-bg-alt: rgba(15, 23, 42, 0.4);
    --glass-bg-solid: rgba(15, 23, 42, 0.6);
    
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-border-hover: rgba(255, 255, 255, 0.2);
    --glass-border-light: rgba(255, 255, 255, 0.05);
    --glass-border-active: rgba(255, 255, 255, 0.3);
    
    --shadow-color: rgba(0, 0, 0, 0.3);
    --shadow-color-alt: rgba(0, 0, 0, 0.25);
    --shadow-accent: rgba(59, 130, 246, 0.4);
    
    --border-accent-dashed: rgba(59, 130, 246, 0.5);
    
    --glass-shadow: 0 8px 32px 0 var(--shadow-color);
    
    --warning-color: #fca5a5;
    --warning-bg: rgba(245, 158, 11, 0.15);
    --warning-border: rgba(245, 158, 11, 0.3);
    
    --guardrail-text: #fcd34d;
    --guardrail-bg: rgba(245, 158, 11, 0.1);
    --guardrail-border: rgba(245, 158, 11, 0.2);
    
    --danger-color: #ef4444;
    --danger-color-muted: rgba(239, 68, 68, 0.7);
    --danger-bg-hover: rgba(239, 68, 68, 0.15);
    
    --success-color: #10b981;
    --success-color-alt: #059669;
    --success-text: #34d399;
    --success-bg: rgba(16, 185, 129, 0.05);
    --success-bg-hover: rgba(16, 185, 129, 0.15);
    --success-border: rgba(16, 185, 129, 0.2);
    --success-border-dashed: rgba(16, 185, 129, 0.4);
    
    --success-shadow: rgba(16, 185, 129, 0.25);
    
    --drag-handle-color: rgba(255, 255, 255, 0.25);
    --drag-handle-hover: rgba(255, 255, 255, 0.7);
    --glass-text-hover: rgba(255, 255, 255, 0.8);
    
    --ticker-bg: rgba(15, 23, 42, 0.4);
    --ticker-text: rgba(148, 163, 184, 0.55);
    --ticker-dot: rgba(148, 163, 184, 0.25);
}

body.light-theme {
    /* EXPLICIT LIGHT THEME (Soft, Premium Aesthetic) */
    --bg-color: #f8fafc;
    --bg-grad-blue: rgba(59, 130, 246, 0.08); /* softer tint */
    --bg-grad-blue-subtle: rgba(59, 130, 246, 0.05);
    --bg-grad-purple: rgba(139, 92, 246, 0.08);
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --accent-light: #2563eb;
    --accent-purple: #9333ea;
    
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-bg-hover: rgba(255, 255, 255, 0.95);
    --glass-hover-medium: rgba(255, 255, 255, 0.85);
    --glass-bg-alt: rgba(241, 245, 249, 0.6);
    --glass-bg-solid: rgba(248, 250, 252, 0.85);
    
    --glass-border: rgba(148, 163, 184, 0.25);
    --glass-border-hover: rgba(148, 163, 184, 0.6);
    --glass-border-light: rgba(148, 163, 184, 0.15);
    --glass-border-active: rgba(148, 163, 184, 0.8);
    
    --shadow-color: rgba(15, 23, 42, 0.08);
    --shadow-color-alt: rgba(15, 23, 42, 0.06);
    --shadow-accent: rgba(59, 130, 246, 0.25);
    
    --border-accent-dashed: rgba(59, 130, 246, 0.4);
    
    --warning-color: #dc2626;
    --warning-bg: rgba(245, 158, 11, 0.1);
    --warning-border: rgba(245, 158, 11, 0.3);
    
    --guardrail-text: #b45309;
    --guardrail-bg: rgba(254, 243, 199, 0.8);
    --guardrail-border: rgba(252, 211, 77, 0.6);
    
    --danger-color: #dc2626;
    --danger-color-muted: rgba(220, 38, 38, 0.8);
    --danger-bg-hover: rgba(254, 226, 226, 0.8);
    
    --success-color: #059669;
    --success-color-alt: #047857;
    --success-text: #047857;
    --success-bg: rgba(16, 185, 129, 0.08);
    --success-bg-hover: rgba(16, 185, 129, 0.2);
    --success-border: rgba(16, 185, 129, 0.3);
    --success-border-dashed: rgba(16, 185, 129, 0.5);
    
    --drag-handle-color: rgba(100, 116, 139, 0.4);
    --drag-handle-hover: rgba(15, 23, 42, 0.7);
    --glass-text-hover: rgba(15, 23, 42, 0.9);
    
    --ticker-bg: rgba(241, 245, 249, 0.7);
    --ticker-text: rgba(71, 85, 105, 0.8);
    --ticker-dot: rgba(71, 85, 105, 0.4);
    
    --success-shadow: rgba(16, 185, 129, 0.15);
}

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

*:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: 4px;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    min-height: 100dvh; /* Modern mobile resiliency */
    min-height: -webkit-fill-available;
    background-image: radial-gradient(circle at 15% 50%, var(--bg-grad-blue), transparent 25%),
                      radial-gradient(circle at 85% 30%, var(--bg-grad-purple), transparent 25%);
    background-attachment: fixed;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: var(--glass-shadow);
}

.app-header {
    text-align: center;
    padding: 3rem 1rem 2rem 1rem;
    position: relative;
    z-index: 10;
}

.theme-toggle {
    position: absolute;
    top: 2rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 12px;
    transition: all 0.3s ease;
    z-index: 100;
}

.theme-toggle:hover {
    color: var(--text-primary);
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
}

.sun-icon { display: none; }
.moon-icon { display: block; }
body.light-theme .sun-icon { display: block; }
body.light-theme .moon-icon { display: none; }

.app-header h1 {
    font-size: 3.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-light), var(--accent-purple), var(--accent-light));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
    background-size: 200% auto;
    animation: gradientMove 3s ease infinite;
}

@keyframes gradientMove {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.app-header p {
    color: var(--text-secondary);
    font-size: 1.15rem;
    max-width: 600px;
    margin: 0 auto;
}

.app-container {
    display: flex;
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    padding: 0 1.5rem 6rem 1.5rem; /* extra padding bottom to account for ticker */
    gap: 2rem;
    position: relative;
    z-index: 10;
}

/* 1/3 Layout */
.info-panel {
    flex: 1;
    max-width: 33.333%;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-card {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.info-card:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
    transform: translateY(-2px);
}

.card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--bg-grad-blue);
    color: var(--accent-light);
    border-radius: 12px;
    flex-shrink: 0;
}

.card-text h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--text-primary);
}

.card-text p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.tips-list {
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding-left: 1.2rem;
    line-height: 1.5;
}

.tips-list li {
    margin-bottom: 0.2rem;
}

.ad-placeholder p {
    font-size: 0.9rem;
    opacity: 0.7;
}

/* 2/3 Layout */
.main-content {
    flex: 2;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.how-it-works-panel {
    overflow: hidden;
    transition: all 0.3s ease;
}

.sortable-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem;
    cursor: grab;
    margin-bottom: 0.8rem;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.sortable-list li:hover {
    transform: translateX(4px);
    border-color: var(--glass-border-hover);
}

.sortable-list li:active {
    cursor: grabbing;
}

.sortable-placeholder {
    background: var(--success-bg);
    border: 2px dashed var(--success-border-dashed);
    border-radius: 8px;
    height: 74px; /* visually match standard row height */
    margin-bottom: 0.8rem;
    pointer-events: none; /* Allows pointer pass-through to real elements below so hovering acts smoothly */
}

.sortable-list li.is-dragging {
    opacity: 0.5;
}

.drag-handle {
    cursor: grab;
    color: var(--drag-handle-color);
    margin-right: 0.4rem;
    display: flex;
    align-items: center;
    transition: color 0.2s ease;
}

.sortable-list li:hover .drag-handle {
    color: var(--drag-handle-hover);
}

.drag-handle:active {
    cursor: grabbing;
}

.mobile-reorder-controls {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    margin-right: 1rem;
}

.move-btn {
    background: transparent;
    border: none;
    color: var(--drag-handle-color);
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.move-btn:hover {
    color: var(--text-primary);
    background: var(--glass-bg-hover);
}

.move-btn:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: -2px;
}

.how-it-works-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 1.5rem;
    cursor: pointer;
    user-select: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s ease;
}

.how-it-works-panel:not(.collapsed) .how-it-works-header {
    border-bottom-color: var(--glass-border-light);
}

.how-it-works-header h3 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
}

.chevron-icon {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: var(--accent-light);
}

.how-it-works-panel.collapsed .chevron-icon {
    transform: rotate(-90deg);
}

.how-it-works-content {
    max-height: 500px;
    transition: max-height 0.4s cubic-bezier(0, 1, 0, 1), opacity 0.3s ease, margin 0.3s ease;
    opacity: 1;
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
}

.how-it-works-panel.collapsed .how-it-works-content {
    max-height: 0;
    opacity: 0;
    margin: 0;
}

.how-list {
    padding: 0 1.5rem 1rem 3rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.how-list li {
    margin-bottom: 0.4rem;
}

.relative-box {
    position: relative;
}

.privacy-badge {
    position: absolute;
    top: -14px;
    right: 24px;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: linear-gradient(135deg, var(--success-color), var(--success-color-alt));
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.3rem 0.8rem;
    border-radius: 16px;
    box-shadow: 0 4px 10px var(--success-shadow);
    z-index: 10;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.upload-section {
    padding: 2rem;
    transition: all 0.3s ease;
}

.upload-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 3.5rem 2rem;
    border: 2px dashed var(--glass-border-active);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    color: var(--text-secondary);
    background: transparent;
}

.upload-area:hover, .upload-area.dragover {
    background: var(--bg-grad-blue-subtle);
    color: var(--accent-light);
    border-color: var(--accent-light);
    transform: scale(0.995);
}

.upload-area svg {
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), color 0.3s ease;
}

.upload-area:hover svg, .upload-area.dragover svg {
    transform: translateY(-5px);
    color: var(--accent-light);
}

/* Options Section */
.options-section {
    padding: 1.5rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.options-header h2 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
}

.options-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.option-column {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.option-item {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.toggle-control {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 0.95rem;
    color: var(--text-primary);
    user-select: none;
    transition: color 0.2s;
}

.toggle-control:hover {
    color: var(--accent-light);
}

.toggle-control input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.control-indicator {
    position: relative;
    display: inline-block;
    width: 20px;
    height: 20px;
    background: var(--glass-bg-alt);
    border: 1px solid var(--glass-border);
    border-radius: 4px;
    margin-right: 0.8rem;
    transition: all 0.2s;
}

.toggle-control:hover .control-indicator {
    border-color: var(--glass-border-active);
}

.toggle-control input:checked ~ .control-indicator {
    background: var(--accent);
    border-color: var(--accent);
}

.control-indicator:after {
    content: "";
    position: absolute;
    display: none;
    left: 6px;
    top: 2px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.toggle-control input:checked ~ .control-indicator:after {
    display: block;
}

.glass-select {
    width: 100%;
    padding: 0.6rem 1rem;
    background: var(--glass-bg-solid);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    font-size: 0.85rem;
    font-family: inherit;
    cursor: pointer;
    outline: none;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1em;
    transition: all 0.2s;
}

.glass-select:hover, .glass-select:focus {
    border-color: var(--glass-border-active);
    background-color: var(--glass-hover-medium);
}

.glass-select option {
    background: var(--bg-color); /* To ensure native dropdowns are legible on all OS */
    color: var(--text-primary);
}

.files-list-section {
    padding: 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.files-list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.3rem;
}

.files-list-header h2 {
    font-size: 1.3rem;
    font-weight: 600;
}

.header-status {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.usage-info {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.warning-badge {
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    background: var(--guardrail-bg);
    color: var(--guardrail-text); 
    border: 1px solid var(--guardrail-border);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.warning-badge.hidden {
    opacity: 0;
    transform: scale(0.9);
    pointer-events: none;
    display: none;
}

.guardrail-warning {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.8rem 1rem;
    border-radius: 8px;
    background: var(--guardrail-bg);
    color: var(--guardrail-text); /* Soft premium amber/yellow */
    border: 1px solid var(--guardrail-border);
    margin-bottom: 1rem;
    font-size: 0.85rem;
    line-height: 1.4;
    transition: all 0.3s ease;
}

.guardrail-warning.hidden {
    display: none;
}

.files-list-section .subtitle {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 1.2rem;
    transition: opacity 0.3s ease;
}

.files-list-section .subtitle.hidden {
    display: none;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1.5rem;
    color: var(--text-secondary);
    border: 1px dashed var(--glass-border-active);
    border-radius: 12px;
    background: transparent;
    margin-top: 0.5rem;
    transition: opacity 0.3s ease;
}

.empty-state p {
    font-size: 0.95rem;
    font-weight: 300;
}

.empty-state .empty-icon {
    color: var(--text-secondary);
    opacity: 0.6;
    margin-bottom: 1rem;
}

.empty-state.hidden {
    display: none;
}

.sortable-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    flex-grow: 1;
    overflow-y: auto;
    max-height: 400px;
    padding-right: 0.5rem;
}

.sortable-list::-webkit-scrollbar {
    width: 6px;
}
.sortable-list::-webkit-scrollbar-thumb {
    background-color: rgba(255,255,255,0.2);
    border-radius: 4px;
}
.sortable-list::-webkit-scrollbar-thumb:hover {
    background-color: rgba(255,255,255,0.3);
}

.list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.8rem 1.2rem;
    background: var(--glass-bg-solid);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    cursor: grab;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.list-item:hover {
    background: var(--glass-hover-medium);
    border-color: var(--glass-border-hover);
}

.list-item:active {
    cursor: grabbing;
    transform: scale(0.98);
}

.list-item.dragging {
    opacity: 0.5;
    background: var(--accent);
    color: white;
}

.item-content {
    display: flex;
    align-items: center;
    gap: 1.2rem;
    flex: 1;
    overflow: hidden;
}

.item-content svg {
    color: var(--text-secondary);
    flex-shrink: 0;
}

.list-item.dragging .item-content svg {
    color: white;
}

.file-name {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 600;
    font-size: 1.05rem;
}

.file-size {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.2rem;
}

.list-item.dragging .file-size {
    color: var(--glass-text-hover);
}

@supports not (backdrop-filter: blur(12px)) {
    .glass-panel {
        background: var(--bg-color);
        border: 1px solid var(--glass-border-active);
    }
}

.remove-btn {
    background: none;
    border: none;
    color: var(--danger-color-muted);
    cursor: pointer;
    padding: 0.6rem;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.remove-btn:hover {
    background: var(--danger-bg-hover);
    color: var(--danger-color);
}

.primary-action {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    padding: 1.2rem;
    font-size: 1.15rem;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, var(--accent), var(--accent-hover));
    border: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border-radius: 12px;
    box-shadow: 0 4px 15px var(--shadow-accent);
}

.primary-action:hover:not(.disabled) {
    transform: translateY(-4px);
    box-shadow: 0 15px 30px var(--shadow-accent);
}

.primary-action:active:not(.disabled) {
    transform: translateY(-1px);
}

.primary-action.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
}

.post-merge-panel {
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    gap: 1.5rem;
    transition: all 0.3s ease;
    background: var(--success-bg); /* very subtle mint tint for success */
    border-color: var(--success-border);
}

.post-merge-panel.hidden {
    display: none;
}

.stats-panel {
    display: flex;
    justify-content: space-around;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--glass-border);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--success);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.post-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.secondary-action {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    background: var(--glass-border-light);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    flex: 1;
}

.secondary-action:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--glass-border-active);
    transform: translateY(-2px);
}

.secondary-action.success {
    background: var(--success-bg-hover);
    border-color: var(--success-border-dashed);
    color: var(--success-text);
}

@keyframes spin {
    to { transform: rotate(360deg); }
}
.spin {
    animation: spin 1s linear infinite;
}

/* Ticker running banner at the bottom */
.ticker-wrap {
    width: 100%;
    overflow: hidden;
    height: 28px;
    background: transparent;
    position: fixed;
    bottom: 0;
    left: 0;
    display: flex;
    align-items: center;
    z-index: 50;
    backdrop-filter: blur(4px);
}

.ticker {
    display: flex;
    white-space: nowrap;
    animation: ticker-anim 35s linear infinite;
}

.ticker:hover {
    animation-play-state: paused;
}

.ticker__item {
    padding: 0 4rem;
    font-size: 0.65rem;
    font-weight: 500;
    color: var(--ticker-text);
    text-transform: uppercase;
    letter-spacing: 2px;
    display: flex;
    align-items: center;
    position: relative;
}

.ticker__item::after {
    content: "•";
    position: absolute;
    right: 0;
    color: var(--ticker-dot);
}

.ticker__item:last-child::after {
    content: ""; /* Will be covered by seamless loop anyways */
}

@keyframes ticker-anim {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); } 
}

/* Responsiveness */
@media (max-width: 900px) {
    .app-header {
        padding: 4rem 1rem 1.5rem 1rem;
    }
    .app-header h1 {
        font-size: 2.3rem; 
    }
    .theme-toggle {
        top: 1rem;
        right: 1.5rem;
        width: 36px;
        height: 36px;
    }
    .app-header p {
        font-size: 1rem;
    }
    .app-container {
        flex-direction: column;
        padding-bottom: 4rem;
        gap: 1.2rem;
    }
    .info-panel {
        max-width: 100%;
        order: 2;
    }
    .main-content {
        order: 1;
    }
    .options-grid {
        grid-template-columns: 1fr;
    }
    .mobile-reorder-controls {
        gap: 0.5rem;
    }
    
    .move-btn {
        width: 44px; /* Essential touch target scaling */
        height: 44px;
        background: var(--glass-bg-alt);
    }

    .drag-handle {
        display: none; /* Hide drag affordance entirely targeting pure touch button bounds natively handling iOS bugs */
    }
    
    .list-item {
        padding: 0.5rem 0.8rem;
    }
}