:root {
    --fire-primary: #10b981;
    --fire-primary-hover: #059669;
    --fire-secondary: #3b82f6;
    --fire-accent: #f59e0b;
    --fire-bg: rgba(255, 255, 255, 0.7);
    --fire-card-bg: rgba(255, 255, 255, 0.8);
    --fire-text: #1f2937;
    --fire-text-muted: #6b7280;
    --fire-border: rgba(16, 185, 129, 0.2);
    --fire-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.1);
}

.theme-dark {
    --fire-bg: rgba(17, 24, 39, 0.7);
    --fire-card-bg: rgba(31, 41, 55, 0.8);
    --fire-text: #f3f4f6;
    --fire-text-muted: #9ca3af;
    --fire-border: rgba(16, 185, 129, 0.3);
}

[data-theme='dark'] {
    --fire-bg: rgba(17, 24, 39, 0.7);
    --fire-card-bg: rgba(31, 41, 55, 0.8);
    --fire-text: #f3f4f6;
    --fire-text-muted: #9ca3af;
    --fire-border: rgba(16, 185, 129, 0.3);
}

.fire-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem;
    border-radius: 24px;
    background: var(--fire-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--fire-border);
    box-shadow: var(--fire-shadow);
    color: var(--fire-text);
}

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

.fire-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.fire-input-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.fire-label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.fire-label {
    font-weight: 600;
    font-size: 0.95rem;
}

.fire-value-display {
    font-weight: 700;
    color: var(--fire-primary);
    background: var(--fire-card-bg);
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 1.1rem;
}

.fire-range {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    background: var(--fire-border);
    border-radius: 5px;
    outline: none;
}

.fire-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--fire-primary);
    cursor: pointer;
    border-radius: 50%;
    box-shadow: 0 2px 6px rgba(16, 185, 129, 0.4);
}

.fire-range::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--fire-primary);
    cursor: pointer;
    border-radius: 50%;
    border: none;
    box-shadow: 0 2px 6px rgba(16, 185, 129, 0.4);
}

.fire-help {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    cursor: help;
    color: var(--fire-secondary);
    position: relative;
}

.fire-tooltip {
    display: none;
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--fire-card-bg);
    border: 1px solid var(--fire-border);
    color: var(--fire-text-muted);
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.85rem;
    white-space: nowrap;
    z-index: 10;
    box-shadow: var(--fire-shadow);
}

.fire-help:hover .fire-tooltip {
    display: block;
}

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

.fire-checklist h3 {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
}

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

.milestone-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.milestone-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    font-weight: 600;
}

.milestone-item.lean .milestone-bar-fill {
    background: linear-gradient(90deg, #ef4444, #f97316);
}

.milestone-item.barista .milestone-bar-fill {
    background: linear-gradient(90deg, #f59e0b, #f59e0b);
}

.milestone-item.fat .milestone-bar-fill {
    background: linear-gradient(90deg, #10b981, #14b8a6);
}

.milestone-bar-bg {
    width: 100%;
    height: 10px;
    background: var(--fire-border);
    border-radius: 5px;
    overflow: hidden;
}

.milestone-bar-fill {
    height: 100%;
    transition: width 0.3s ease;
    border-radius: 5px;
}

.fire-result-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.fire-main-result {
    text-align: center;
    padding: 1.5rem;
    background: var(--fire-card-bg);
    border-radius: 12px;
    border: 1px solid var(--fire-border);
}

.fire-magic-number-label {
    display: block;
    font-size: 0.9rem;
    color: var(--fire-text-muted);
    margin-bottom: 0.5rem;
}

.fire-magic-number {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--fire-primary);
    margin-bottom: 0.5rem;
}

.fire-countdown {
    font-size: 0.95rem;
    color: var(--fire-text-muted);
}

.fire-chart-container {
    width: 100%;
    height: 200px;
    background: var(--fire-card-bg);
    border-radius: 12px;
    border: 1px solid var(--fire-border);
    padding: 1rem;
    box-sizing: border-box;
}

.fire-line-svg {
    width: 100%;
    height: 100%;
}

.fire-path {
    fill: none;
    stroke: var(--fire-primary);
    stroke-width: 2;
}

.fire-path-savings {
    fill: rgba(16, 185, 129, 0.1);
}

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

.checklist-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    cursor: pointer;
}

.checklist-item input[type="checkbox"] {
    cursor: pointer;
    accent-color: var(--fire-primary);
}

.checklist-feedback {
    display: none;
    padding: 0.75rem;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 8px;
    color: var(--fire-primary);
    font-size: 0.85rem;
    font-weight: 600;
}

.checklist-feedback.visible {
    display: block;
}

.fire-actions {
    display: flex;
    gap: 1rem;
}

.fire-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

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

.fire-btn-primary:hover {
    background: var(--fire-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

@media (max-width: 768px) {
    .fire-grid {
        grid-template-columns: 1fr;
    }

    .fire-container {
        padding: 1rem;
    }

    .checklist-grid {
        grid-template-columns: 1fr;
    }
}