:root {
    /* Palette */
    --color-bg-base: #0a0a0a;
    --color-bg-surface: #141414;
    --color-bg-card: #1c1c1c;
    --color-bg-input: #000000;

    --color-accent-primary: #e53935;
    /* Red */
    --color-accent-hover: #ff5252;
    --color-accent-subtle: rgba(229, 57, 53, 0.15);

    --color-text-main: #ffffff;
    --color-text-muted: #a0a0a0;
    --color-text-silver: #cfd8dc;

    --color-border: #333333;
    --color-border-hover: #555555;

    --color-navy: #1c2530;
    --color-success: #4caf50;
    --color-purple: #7e57c2;

    /* Spacing & Radius */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;

    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;

    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body {
    background-color: var(--color-bg-base);
    color: var(--color-text-main);
    font-family: var(--font-sans);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* Layout */
.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-header {
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.app-header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.05em;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.app-header .highlight {
    color: var(--color-accent-primary);
}

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

.main-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

@media (min-width: 900px) {
    .main-content {
        grid-template-columns: 1.4fr 1fr;
        align-items: start;
    }

    .outputs-column {
        position: sticky;
        top: var(--spacing-md);
        align-self: start;
    }
}

/* Components: Cards */
.card {
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    /* overflow: hidden; Removed to allow tooltips */
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:focus-within {
    border-color: var(--color-border-hover);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.card-header {
    background-color: var(--color-bg-card);
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.card-header h2 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-silver);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-body {
    padding: var(--spacing-md);
}

/* Inputs */
.input-row {
    margin-bottom: var(--spacing-md);
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-silver);
}

.label-hint {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: -0.4rem;
    margin-bottom: 0.5rem;
}

.input-wrapper {
    position: relative;
    background-color: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    transition: border-color 0.2s;
}

.input-wrapper:focus-within {
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 0 2px var(--color-accent-subtle);
}

input[type="number"] {
    width: 100%;
    background: transparent;
    border: none;
    color: var(--color-text-main);
    font-family: var(--font-mono);
    font-size: 1.1rem;
    padding: 0.75rem;
    outline: none;
}

/* Enhancements for currency inputs */
.currency-input::before {
    content: '$';
    padding-left: 0.75rem;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}

.percent-input::after {
    content: '%';
    padding-right: 0.75rem;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}

/* Prize Inputs Layout */
.prize-input-group {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.prize-input-group .main-val {
    flex: 1;
}

.sub-row {
    margin-top: 0.5rem;
    margin-left: 0.5rem;
    padding-left: 0.5rem;
    border-left: 2px solid var(--color-border);
    animation: fadeIn 0.3s;
}

.sub-label {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-bottom: 0.2rem;
}

.input-wrapper.small {
    max-width: 150px;
    height: 36px;
}

.donation-toggle {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    color: var(--color-text-silver);
    cursor: pointer;
}

/* Range Sliders */
.range-and-input {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

input[type="range"] {
    flex: 1;
    -webkit-appearance: none;
    background: transparent;
    height: 6px;
    border-radius: 3px;
    background-color: var(--color-border);
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    height: 20px;
    width: 20px;
    border-radius: 50%;
    background: var(--color-accent-primary);
    cursor: pointer;
    margin-top: -7px;
    box-shadow: 0 0 0 4px var(--color-bg-surface);
    transition: transform 0.1s;
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

input[type="range"]::-webkit-slider-runnable-track {
    width: 100%;
    height: 6px;
    cursor: pointer;
    background: var(--color-border);
    border-radius: 3px;
}

.input-wrapper.short {
    width: 100px;
    flex-shrink: 0;
}

/* Buttons */
.btn {
    appearance: none;
    border: none;
    cursor: pointer;
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: all 0.2s;
}

.btn-secondary {
    background-color: var(--color-border);
    color: var(--color-text-main);
}

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

.btn-text {
    background: none;
    border: none;
    color: var(--color-accent-primary);
    cursor: pointer;
    font-size: 0.9rem;
    padding: 0;
}

.btn-text:hover {
    text-decoration: underline;
}

.btn-remove {
    background: transparent;
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
    width: 30px;
    height: 38px;
    /* match input height roughly */
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.btn-remove:hover {
    color: var(--color-accent-primary);
    border-color: var(--color-accent-primary);
}

/* Toggle Switch */
.mode-selector {
    margin-bottom: var(--spacing-md);
}

.toggle-switch {
    display: flex;
    position: relative;
    background-color: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    cursor: pointer;
}

.toggle-switch input {
    display: none;
}

.toggle-option {
    flex: 1;
    text-align: center;
    padding: 0.75rem;
    z-index: 2;
    color: var(--color-text-muted);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: color 0.3s;
}

.toggle-switch input:checked+label {
    color: white;
}

.toggle-background {
    position: absolute;
    top: 2px;
    bottom: 2px;
    left: 2px;
    width: calc(33.333% - 2px);
    background-color: var(--color-accent-primary);
    border-radius: 4px;
    z-index: 1;
    transition: transform 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
}

#mode-tickets:checked~.toggle-background {
    transform: translateX(100%);
}

#mode-price:checked~.toggle-background {
    transform: translateX(200%);
}

/* Dashboard Output */
.outputs-column .sticky-wrapper {
    /* Legacy wrapper style removed in favor of column sticky */
}

.dashboard-card {
    background-color: var(--color-navy);
    border: 1px solid #2a3b4c;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    background-image: linear-gradient(135deg, rgba(255, 255, 255, 0.03) 0%, transparent 100%);
}

.metric-label {
    display: block;
    font-size: 0.9rem;
    color: #8da2b5;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.metric-value-large {
    font-size: 3.5rem;
    font-weight: 800;
    font-family: var(--font-mono);
    color: var(--color-text-main);
    line-height: 1;
    margin-bottom: var(--spacing-lg);
}

.metric-value-large.positive {
    color: #4caf50;
    text-shadow: 0 0 20px rgba(76, 175, 80, 0.3);
}

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

.metric-item {
    display: flex;
    flex-direction: column;
}

.metric-item .label {
    font-size: 0.85rem;
    color: #8da2b5;
}

.metric-item .value {
    font-size: 1.2rem;
    font-weight: 600;
    font-family: var(--font-mono);
}

.text-danger {
    color: #ef5350;
}

.divider {
    border: 0;
    height: 1px;
    background-color: #2a3b4c;
    margin: var(--spacing-md) 0;
}

.break-even-box {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-text-silver);
    font-size: 0.95rem;
    background-color: rgba(0, 0, 0, 0.2);
    padding: 0.75rem;
    border-radius: var(--radius-sm);
}

.highlight-result {
    margin-top: var(--spacing-md);
    background: var(--color-accent-subtle);
    border: 1px solid var(--color-accent-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    text-align: center;
}

.value-huge {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--color-text-main);
}

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

/* Animations */
@media (prefers-reduced-motion: no-preference) {
    .dashboard-card {
        animation: fadeIn 0.5s ease-out;
    }

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

        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
}

/* New: Risk & Chip styles */
.flex-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.toggle-sm {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.btn-chip {
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    color: var(--color-text-silver);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-chip:hover {
    border-color: var(--color-accent-primary);
    color: white;
}

.presets {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.section-desc {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 1rem;
}

/* Risk Output Card */
.risk-card {
    margin-top: var(--spacing-md);
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.risk-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: var(--color-text-silver);
}

.badge {
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.badge.high-risk {
    background: #b71c1c;
    color: white;
}

.badge.moderate {
    background: #f57f17;
    color: white;
}

.badge.low {
    background: #2e7d32;
    color: white;
}

.risk-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1px;
    background: var(--color-border);
    /* divider color */
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.risk-col {
    background: var(--color-navy);
    padding: 0.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
}

.risk-col.mid {
    background: #232e3c;
}

.col-head {
    font-size: 0.75rem;
    color: #8da2b5;
}

.col-val {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.95rem;
}

.risk-note {
    margin-top: 0.75rem;
    font-size: 0.8rem;
    color: var(--color-text-silver);
    font-style: italic;
    text-align: center;
}

/* Secondary Output Card */
.secondary-card {
    margin-top: var(--spacing-md);
    background: var(--color-bg-card);
    /* Lighter than nav card */
    box-shadow: none;
    border: 1px solid var(--color-border);
}

.card-header-sm {
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

.card-header-sm h3 {
    font-size: 1rem;
    color: var(--color-text-main);
}

.compact.metrics-grid {
    margin-bottom: 0;
}

.disclaimer-text {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 0.75rem;
}

/* --- New Visuals -- */

/* Sensitivity */
.highlight-border-purple {
    border-top: 3px solid var(--color-purple);
}

.compact-row {
    margin-bottom: 0.8rem;
}

.compact-row label {
    font-size: 0.8rem;
    margin-bottom: 0.2rem;
}

.val-display {
    width: 50px;
    text-align: right;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--color-text-main);
}

.btn-text.small {
    font-size: 0.8rem;
}

/* Heatmap */
.heatmap-controls {
    margin-bottom: 1rem;
    text-align: right;
}

.select-dark {
    background: var(--color-bg-input);
    color: var(--color-text-main);
    border: 1px solid var(--color-border);
    padding: 0.3rem;
    border-radius: var(--radius-sm);
    outline: none;
}

.heatmap-container {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    grid-template-rows: repeat(10, 1fr);
    gap: 1px;
    background: #222;
    aspect-ratio: 1;
    /* square */
    border: 1px solid var(--color-border);
    margin-bottom: 0.5rem;
}

.heat-cell {
    background: #333;
    position: relative;
    cursor: pointer;
    transition: opacity 0.1s;
}

.heat-cell:hover {
    z-index: 10;
    outline: 2px solid white;
}

.heat-cell.current {
    box-shadow: inset 0 0 0 2px white;
}

.heatmap-legend {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--color-text-silver);
}

/* Chart */
.chart-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    padding: var(--spacing-md);
    margin-top: var(--spacing-md);
    border-radius: var(--radius-md);
}

.chart-container {
    height: 250px;
    width: 100%;
}

/* --- Templates --- */
.templates-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
}

.label-muted {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    white-space: nowrap;
}

.chip-group {
    display: flex;
    gap: 0.5rem;
}

.chip {
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    color: var(--color-text-silver);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s;
}

.chip:hover {
    background: #333;
    border-color: var(--color-border-focus);
    color: white;
}

/* --- Scenarios --- */
.scenarios-list {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    max-height: 300px;
    overflow-y: auto;
}

.scenario-card {
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    padding: 0.8rem;
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.scenario-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--color-text-main);
}

.scenario-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    font-size: 0.8rem;
    color: var(--color-text-silver);
    gap: 0.5rem;
}

.scenario-actions {
    display: flex;
    gap: 0.5rem;
    justify-content: flex-end;
    margin-top: 0.5rem;
}

.btn-mini {
    padding: 0.2rem 0.6rem;
    font-size: 0.75rem;
    background: #444;
    border: none;
    border-radius: 4px;
    color: white;
    cursor: pointer;
}

.btn-mini:hover {
    background: #555;
}

/* --- Validation Banner --- */
.validation-banner {
    background: #4a1c1c;
    border: 1px solid #e53935;
    border-radius: var(--radius-md);
    padding: 1rem;
    margin-bottom: 1.5rem;
    display: flex;
    gap: 1rem;
    animation: fadeIn 0.3s;
}

.validation-icon {
    font-size: 1.5rem;
}

.validation-content {
    flex: 1;
}

.validation-content strong {
    color: #ff8a80;
    display: block;
    margin-bottom: 0.25rem;
}

.validation-content p {
    font-size: 0.9rem;
    color: #ffcdd2;
    margin-bottom: 0.5rem;
}

.validation-content ul {
    list-style: disc;
    padding-left: 1.2rem;
    color: var(--color-text-silver);
    font-size: 0.85rem;
}

.validation-content li {
    margin-bottom: 0.25rem;
}

/* --- Export Actions --- */
.actions-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.8rem;
}

.full-width {
    width: 100%;
}

/* --- Regulatory Panel --- */
.regulatory-bar .btn-text {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.regulatory-bar .btn-text:hover {
    color: var(--color-text-main);
}

/* --- PRINT STYLES --- */
.print-only {
    display: none;
}

@media print {
    body {
        background: white;
        color: black;
        font-family: serif;
    }

    .app-container,
    .chart-card,
    .heatmap-controls,
    #heatmap-section,
    #sensitivity-section,
    #scenarios-section {
        display: none !important;
    }

    .print-only {
        display: block;
        padding: 2rem;
    }

    .print-header {
        border-bottom: 2px solid black;
        margin-bottom: 2rem;
    }

    .print-header h1 {
        font-size: 2rem;
        margin-bottom: 0.5rem;
    }

    .print-meta {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
        font-size: 0.9rem;
        margin-bottom: 1rem;
    }

    .print-section {
        margin-bottom: 2rem;
        break-inside: avoid;
    }

    .print-section h3 {
        border-bottom: 1px solid #ccc;
        font-size: 1.2rem;
        margin-bottom: 1rem;
        text-transform: uppercase;
    }

    .print-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

    .print-row {
        display: flex;
        justify-content: space-between;
        margin-bottom: 0.5rem;
        border-bottom: 1px dotted #ddd;
    }

    .print-row strong {
        font-weight: bold;
    }

    .print-table {
        width: 100%;
        border-collapse: collapse;
        margin-top: 1rem;
    }

    .print-table th,
    .print-table td {
        border: 1px solid #ccc;
        padding: 0.5rem;
        text-align: left;
        font-size: 0.9rem;
    }

    .print-footer {
        margin-top: 3rem;
        font-style: italic;
        font-size: 0.8rem;
        border-top: 1px solid black;
        padding-top: 0.5rem;
    }
}


.btn-mini.danger {
    background: #d32f2f;
}

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

.comparison-table-wrapper {
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.comparison-table th,
.comparison-table td {
    border: 1px solid var(--color-border);
    padding: 0.5rem;
    text-align: center;
}

.comparison-table th {
    background: #333;
    color: white;
}

.comparison-table td {
    color: var(--color-text-silver);
}

/* Select adjustments */
.select-wrapper {
    margin-right: 0.5rem;
}

.select-dark.full-width {
    width: 100%;
}

.select-dark.small {
    font-size: 0.8rem;
    padding: 0.4rem;
}

/* --- Tooltips --- */
.help-icon {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 18px;
    height: 18px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text-muted);
    border-radius: 50%;
    font-size: 0.75rem;
    cursor: help;
    margin-left: 0.5rem;
    position: relative;
    font-family: serif;
    font-style: italic;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.help-icon:hover {
    background: var(--color-accent-primary);
    color: white;
    border-color: var(--color-accent-primary);
}

.help-icon::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 120%;
    left: 50%;
    transform: translateX(-50%);
    width: 220px;
    background: #2a2a2a;
    color: #eee;
    padding: 0.6rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-family: var(--font-sans);
    font-style: normal;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
    border: 1px solid #444;
    visibility: hidden;
    opacity: 0;
    transition: all 0.2s ease;
    z-index: 100;
    pointer-events: none;
    line-height: 1.4;
}

.help-icon:hover::after {
    visibility: visible;
    opacity: 1;
    bottom: 140%;
}