/* Renovation Cost Calculator - Frontend Styles */
/* BEM Methodology | CSS Custom Properties | Mobile-First */

:root, [data-rcc-theme="light"] {
    --rcc-primary: #735bff;
    --rcc-primary-hover: #1d4ed8;
    --rcc-primary-light: #dbeafe;
    --rcc-secondary: #059669;
    --rcc-secondary-light: #d1fae5;
    --rcc-accent: #f59e0b;
    --rcc-danger: #ef4444;
    --rcc-bg: #ffffff;
    --rcc-bg-secondary: #f8fafc;
    --rcc-bg-card: #ffffff;
    --rcc-text: #1e293b;
    --rcc-text-secondary: #64748b;
    --rcc-text-muted: #94a3b8;
    --rcc-border: #e2e8f0;
    --rcc-border-light: #f1f5f9;
    --rcc-cat-demolition: #ef4444;
    --rcc-cat-flooring: #8b5cf6;
    --rcc-cat-wall: #06b6d4;
    --rcc-cat-ceiling: #f97316;
    --rcc-cat-electrical: #eab308;
    --rcc-cat-plumbing: #3b82f6;
    --rcc-cat-painting: #ec4899;
    --rcc-cat-cabinetry: #a855f7;
    --rcc-cat-doors: #14b8a6;
    --rcc-cat-lighting: #f59e0b;
    --rcc-cat-tiling: #6366f1;
    --rcc-cat-insulation: #84cc16;
    --rcc-space-xs: 0.25rem;
    --rcc-space-sm: 0.5rem;
    --rcc-space-md: 1rem;
    --rcc-space-lg: 1.5rem;
    --rcc-space-xl: 2rem;
    --rcc-space-2xl: 3rem;
    --rcc-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --rcc-font-size-sm: 0.875rem;
    --rcc-font-size-base: 1rem;
    --rcc-font-size-lg: 1.25rem;
    --rcc-font-size-xl: 1.5rem;
    --rcc-font-size-2xl: 2rem;
    --rcc-font-size-3xl: 2.5rem;
    --rcc-radius-sm: 0.375rem;
    --rcc-radius-md: 0.5rem;
    --rcc-radius-lg: 0.75rem;
    --rcc-radius-xl: 1rem;
    --rcc-shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --rcc-shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -1px rgba(0,0,0,0.04);
    --rcc-shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.04);
    --rcc-shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
    --rcc-transition-fast: 150ms ease;
    --rcc-transition-base: 250ms ease;
    --rcc-transition-slow: 400ms ease;
}

[data-rcc-theme="dark"] {
    --rcc-bg: #0f172a;
    --rcc-bg-secondary: #1e293b;
    --rcc-bg-card: #1e293b;
    --rcc-text: #f1f5f9;
    --rcc-text-secondary: #94a3b8;
    --rcc-text-muted: #64748b;
    --rcc-border: #334155;
    --rcc-border-light: #1e293b;
    --rcc-primary-light: #1e3a5f;
    --rcc-secondary-light: #064e3b;
    --rcc-shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --rcc-shadow-md: 0 4px 6px rgba(0,0,0,0.4);
    --rcc-shadow-lg: 0 10px 15px rgba(0,0,0,0.5);
    --rcc-shadow-xl: 0 20px 25px rgba(0,0,0,0.6);
}

/* Reset scoped to our container */
.rcc-calculator *, .rcc-calculator *::before, .rcc-calculator *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.rcc-calculator {
    font-family: var(--rcc-font-family);
    font-size: var(--rcc-font-size-base);
    color: var(--rcc-text);
    background: var(--rcc-bg);
    border-radius: var(--rcc-radius-xl);
    border: 1px solid var(--rcc-border);
    box-shadow: var(--rcc-shadow-lg);
    padding: var(--rcc-space-xl);
    margin: var(--rcc-space-xl) auto;
    position: relative;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ---- Progress Bar ---- */
.rcc-wizard__progress {
    margin-bottom: var(--rcc-space-2xl);
}

.rcc-wizard__progress-track {
    height: 4px;
    background: var(--rcc-border);
    border-radius: 2px;
    margin-bottom: var(--rcc-space-lg);
    overflow: hidden;
}

.rcc-wizard__progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--rcc-primary), var(--rcc-secondary));
    border-radius: 2px;
    width: 20%;
    transition: width var(--rcc-transition-slow);
}

.rcc-wizard__progress-steps {
    display: flex;
    justify-content: space-between;
}

.rcc-wizard__progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--rcc-space-xs);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--rcc-text-muted);
    transition: color var(--rcc-transition-base);
    font-family: inherit;
}

.rcc-wizard__progress-step-num {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--rcc-font-size-sm);
    font-weight: 600;
    background: var(--rcc-bg-secondary);
    border: 2px solid var(--rcc-border);
    transition: all var(--rcc-transition-base);
}

.rcc-wizard__progress-step--active .rcc-wizard__progress-step-num {
    background: var(--rcc-primary);
    border-color: var(--rcc-primary);
    color: white;
    box-shadow: 0 0 0 4px var(--rcc-primary-light);
}

.rcc-wizard__progress-step--completed .rcc-wizard__progress-step-num {
    background: var(--rcc-secondary);
    border-color: var(--rcc-secondary);
    color: white;
}

.rcc-wizard__progress-step--active,
.rcc-wizard__progress-step--completed {
    color: var(--rcc-text);
}

.rcc-wizard__progress-step-label {
    font-size: 0.7rem;
    font-weight: 500;
    text-align: center;
    white-space: nowrap;
}

/* ---- Top Bar (Currency + Theme) ---- */
.rcc-top-bar {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--rcc-space-sm);
    padding: var(--rcc-space-sm) var(--rcc-space-lg);
    position: relative;
    z-index: 10;
}

/* ---- Currency Selector ---- */
.rcc-currency-selector {
    display: flex;
    align-items: center;
    gap: var(--rcc-space-xs);
}

.rcc-currency-selector__label {
    display: flex;
    align-items: center;
    color: var(--rcc-text-secondary);
}

.rcc-currency-selector__select {
    padding: 6px 12px;
    border-radius: var(--rcc-radius-md);
    border: 1px solid var(--rcc-border);
    background: var(--rcc-bg-secondary);
    color: var(--rcc-text);
    font-size: var(--rcc-font-size-sm);
    font-family: var(--rcc-font-family);
    cursor: pointer;
    transition: all var(--rcc-transition-base);
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
    padding-right: 28px;
    min-width: 120px;
}

.rcc-currency-selector__select:hover {
    border-color: var(--rcc-primary);
}

.rcc-currency-selector__select:focus {
    outline: none;
    border-color: var(--rcc-primary);
    box-shadow: 0 0 0 3px rgba(115, 91, 255, 0.15);
}

/* ---- Theme Toggle ---- */
.rcc-theme-toggle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--rcc-border);
    background: var(--rcc-bg-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--rcc-text-secondary);
    transition: all var(--rcc-transition-base);
    flex-shrink: 0;
}

.rcc-theme-toggle:hover {
    border-color: var(--rcc-primary);
    color: var(--rcc-primary);
}

.rcc-theme-toggle__icon { width: 18px; height: 18px; }
[data-rcc-theme="light"] .rcc-theme-toggle__icon--moon { display: none; }
[data-rcc-theme="dark"] .rcc-theme-toggle__icon--sun { display: none; }

/* ---- Wizard Steps ---- */
.rcc-wizard__step {
    display: none;
    animation: rccFadeIn var(--rcc-transition-slow) ease;
}

.rcc-wizard__step--active {
    display: block;
}

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

.rcc-wizard__title {
    font-size: var(--rcc-font-size-xl);
    font-weight: 700;
    color: var(--rcc-text);
    margin-bottom: var(--rcc-space-xs);
}

.rcc-wizard__subtitle {
    font-size: var(--rcc-font-size-sm);
    color: var(--rcc-text-secondary);
    margin-bottom: var(--rcc-space-xl);
}

/* ---- Room Cards ---- */
.rcc-room-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--rcc-space-md);
}

.rcc-room-card {
    background: var(--rcc-bg-card);
    border: 2px solid var(--rcc-border);
    border-radius: var(--rcc-radius-lg);
    padding: var(--rcc-space-lg);
    cursor: pointer;
    transition: all var(--rcc-transition-base);
    text-align: center;
    position: relative;
}

.rcc-room-card:hover,
.rcc-room-card:focus-visible {
    border-color: var(--rcc-primary);
    box-shadow: var(--rcc-shadow-md);
    transform: translateY(-2px);
    outline: none;
}

.rcc-room-card:focus-visible {
    box-shadow: 0 0 0 3px var(--rcc-primary-light);
}

.rcc-room-card--selected {
    border-color: var(--rcc-primary);
    background: var(--rcc-primary-light);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.rcc-room-card__icon {
    font-size: 2.5rem;
    margin-bottom: var(--rcc-space-sm);
    display: block;
}

.rcc-room-card__title {
    font-weight: 600;
    font-size: var(--rcc-font-size-base);
    margin-bottom: var(--rcc-space-xs);
    color: var(--rcc-text);
}

.rcc-room-card__desc {
    font-size: 0.75rem;
    color: var(--rcc-text-secondary);
    line-height: 1.4;
}

.rcc-room-card__quantity {
    margin-top: var(--rcc-space-sm);
    display: none;
}

.rcc-room-card--selected .rcc-room-card__quantity {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--rcc-space-sm);
}

.rcc-room-card__quantity-btn {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    border: 1px solid var(--rcc-border);
    background: var(--rcc-bg);
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--rcc-text);
    transition: all var(--rcc-transition-fast);
}

.rcc-room-card__quantity-btn:hover {
    background: var(--rcc-primary);
    color: white;
    border-color: var(--rcc-primary);
}

.rcc-room-card__quantity-val {
    font-weight: 600;
    min-width: 24px;
    text-align: center;
}

.rcc-room-card__check {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--rcc-primary);
    color: white;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.rcc-room-card--selected .rcc-room-card__check {
    display: flex;
}

/* ---- Dimensions ---- */
.rcc-dimensions-list {
    display: flex;
    flex-direction: column;
    gap: var(--rcc-space-lg);
}

.rcc-dimension-card {
    background: var(--rcc-bg-card);
    border: 1px solid var(--rcc-border);
    border-radius: var(--rcc-radius-lg);
    padding: var(--rcc-space-lg);
}

.rcc-dimension-card__header {
    display: flex;
    align-items: center;
    gap: var(--rcc-space-sm);
    margin-bottom: var(--rcc-space-md);
}

.rcc-dimension-card__icon {
    font-size: 1.5rem;
}

.rcc-dimension-card__title {
    font-weight: 600;
    font-size: var(--rcc-font-size-lg);
}

.rcc-dimension-card__fields {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--rcc-space-md);
}

.rcc-dimension-card__calc {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: var(--rcc-space-sm);
    align-items: end;
}

.rcc-dimension-card__calc-op {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--rcc-font-size-lg);
    font-weight: 600;
    color: var(--rcc-text-secondary);
    padding-bottom: 8px;
}

.rcc-dimension-card__typical {
    font-size: 0.75rem;
    color: var(--rcc-text-muted);
    margin-top: var(--rcc-space-xs);
}

/* ---- Categories ---- */
.rcc-room-tabs {
    display: flex;
    gap: var(--rcc-space-xs);
    margin-bottom: var(--rcc-space-lg);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: var(--rcc-space-xs);
}

.rcc-room-tab {
    padding: var(--rcc-space-sm) var(--rcc-space-md);
    border-radius: var(--rcc-radius-md);
    border: 1px solid var(--rcc-border);
    background: var(--rcc-bg-secondary);
    cursor: pointer;
    font-size: var(--rcc-font-size-sm);
    font-weight: 500;
    white-space: nowrap;
    transition: all var(--rcc-transition-fast);
    font-family: inherit;
    color: var(--rcc-text-secondary);
}

.rcc-room-tab:hover { border-color: var(--rcc-primary); }
.rcc-room-tab--active {
    background: var(--rcc-primary);
    color: white;
    border-color: var(--rcc-primary);
}

.rcc-category-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--rcc-space-md);
}

.rcc-category-toggle {
    background: var(--rcc-bg-card);
    border: 2px solid var(--rcc-border);
    border-radius: var(--rcc-radius-lg);
    padding: var(--rcc-space-md);
    cursor: pointer;
    transition: all var(--rcc-transition-base);
    display: flex;
    align-items: center;
    gap: var(--rcc-space-sm);
}

.rcc-category-toggle:hover,
.rcc-category-toggle:focus-visible {
    border-color: var(--rcc-primary);
    outline: none;
    box-shadow: 0 0 0 3px var(--rcc-primary-light);
}

.rcc-category-toggle--active {
    border-color: var(--rcc-primary);
    background: var(--rcc-primary-light);
}

.rcc-category-toggle__badge {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.rcc-category-toggle__name {
    font-weight: 500;
    font-size: var(--rcc-font-size-sm);
    color: var(--rcc-text);
}

.rcc-category-toggle__icon {
    font-size: 1.3rem;
    flex-shrink: 0;
}

.rcc-category-items {
    margin-top: var(--rcc-space-lg);
    display: none;
}

.rcc-category-items--visible {
    display: block;
}

.rcc-category-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--rcc-space-sm) var(--rcc-space-md);
    border-bottom: 1px solid var(--rcc-border-light);
    gap: var(--rcc-space-md);
}

.rcc-category-item__name {
    font-size: var(--rcc-font-size-sm);
    color: var(--rcc-text);
    flex: 1;
}

.rcc-category-item__price {
    font-size: var(--rcc-font-size-sm);
    color: var(--rcc-text-secondary);
    white-space: nowrap;
}

.rcc-category-item__qty {
    display: flex;
    align-items: center;
    gap: var(--rcc-space-xs);
}

/* ---- Quality Tiers ---- */
.rcc-tier-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--rcc-space-md);
}

.rcc-tier-card {
    background: var(--rcc-bg-card);
    border: 2px solid var(--rcc-border);
    border-radius: var(--rcc-radius-lg);
    padding: var(--rcc-space-lg);
    cursor: pointer;
    transition: all var(--rcc-transition-base);
    text-align: center;
    position: relative;
}

.rcc-tier-card:hover,
.rcc-tier-card:focus-visible {
    transform: translateY(-3px);
    box-shadow: var(--rcc-shadow-lg);
    outline: none;
}

.rcc-tier-card:focus-visible {
    box-shadow: 0 0 0 3px var(--rcc-primary-light), var(--rcc-shadow-lg);
}

.rcc-tier-card--selected {
    border-width: 3px;
    box-shadow: var(--rcc-shadow-lg);
    transform: translateY(-3px);
}

.rcc-tier-card--economy.rcc-tier-card--selected { border-color: #22c55e; }
.rcc-tier-card--standard.rcc-tier-card--selected { border-color: #3b82f6; }
.rcc-tier-card--premium.rcc-tier-card--selected { border-color: #f59e0b; }
.rcc-tier-card--luxury.rcc-tier-card--selected { border-color: #a855f7; }

.rcc-tier-card__badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    padding: 2px 12px;
    border-radius: 10px;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: white;
}

.rcc-tier-card__badge--best-value { background: #22c55e; }
.rcc-tier-card__badge--popular { background: #3b82f6; }

.rcc-tier-card__color {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin: 0 auto var(--rcc-space-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.rcc-tier-card__name {
    font-weight: 700;
    font-size: var(--rcc-font-size-lg);
    margin-bottom: var(--rcc-space-xs);
    color: var(--rcc-text);
}

.rcc-tier-card__desc {
    font-size: 0.75rem;
    color: var(--rcc-text-secondary);
    margin-bottom: var(--rcc-space-md);
    line-height: 1.4;
}

.rcc-tier-card__price {
    font-size: var(--rcc-font-size-xl);
    font-weight: 700;
    color: var(--rcc-text);
}

/* ---- Results ---- */
.rcc-results__summary {
    background: linear-gradient(135deg, var(--rcc-primary), #7c3aed);
    border-radius: var(--rcc-radius-xl);
    padding: var(--rcc-space-2xl);
    text-align: center;
    color: white;
    margin-bottom: var(--rcc-space-xl);
}

.rcc-results__total-label {
    font-size: var(--rcc-font-size-sm);
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--rcc-space-sm);
}

.rcc-results__total-amount {
    font-size: var(--rcc-font-size-3xl);
    font-weight: 800;
}

.rcc-results__breakdown {
    display: flex;
    justify-content: center;
    gap: var(--rcc-space-xl);
    margin-top: var(--rcc-space-md);
    font-size: var(--rcc-font-size-sm);
    opacity: 0.9;
}

.rcc-results__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--rcc-space-sm);
    margin-bottom: var(--rcc-space-xl);
    justify-content: center;
}

.rcc-results__room-breakdown {
    margin-bottom: var(--rcc-space-xl);
}

.rcc-results__room {
    border: 1px solid var(--rcc-border);
    border-radius: var(--rcc-radius-lg);
    overflow: hidden;
    margin-bottom: var(--rcc-space-md);
}

.rcc-results__room-header {
    background: var(--rcc-bg-secondary);
    padding: var(--rcc-space-md) var(--rcc-space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    font-weight: 600;
}

.rcc-results__room-body {
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--rcc-transition-slow);
}

.rcc-results__room--open .rcc-results__room-body {
    max-height: 2000px;
    padding: var(--rcc-space-md);
}

.rcc-results__table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--rcc-font-size-sm);
}

.rcc-results__table th {
    text-align: left;
    padding: var(--rcc-space-sm) var(--rcc-space-md);
    border-bottom: 2px solid var(--rcc-border);
    color: var(--rcc-text-secondary);
    font-size: 0.75rem;
    text-transform: uppercase;
}

.rcc-results__table td {
    padding: var(--rcc-space-sm) var(--rcc-space-md);
    border-bottom: 1px solid var(--rcc-border-light);
}

.rcc-results__table .text-right { text-align: right; }
.rcc-results__table .font-bold { font-weight: 600; }

.rcc-results__charts {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--rcc-space-lg);
    margin-bottom: var(--rcc-space-xl);
}

.rcc-chart-container {
    background: var(--rcc-bg-card);
    border: 1px solid var(--rcc-border);
    border-radius: var(--rcc-radius-lg);
    padding: var(--rcc-space-lg);
}

.rcc-chart-container__title {
    font-weight: 600;
    margin-bottom: var(--rcc-space-md);
    font-size: var(--rcc-font-size-sm);
    color: var(--rcc-text);
}

.rcc-chart-container canvas {
    width: 100% !important;
    height: auto !important;
}

.rcc-results__disclaimer {
    font-size: 0.75rem;
    color: var(--rcc-text-muted);
    font-style: italic;
    text-align: center;
    padding: var(--rcc-space-md);
    border-top: 1px solid var(--rcc-border);
}

/* ---- Comparison ---- */
.rcc-comparison {
    margin-top: var(--rcc-space-xl);
}

.rcc-comparison__table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--rcc-font-size-sm);
}

.rcc-comparison__table th,
.rcc-comparison__table td {
    padding: var(--rcc-space-sm) var(--rcc-space-md);
    border: 1px solid var(--rcc-border);
    text-align: center;
}

.rcc-comparison__table th {
    background: var(--rcc-bg-secondary);
    font-weight: 600;
}

.rcc-comparison__table .rcc-comparison__highlight {
    background: var(--rcc-primary-light);
    font-weight: 700;
}

/* ---- Floating Cost Summary ---- */
.rcc-cost-summary {
    position: sticky;
    bottom: var(--rcc-space-md);
    background: var(--rcc-bg-card);
    border: 1px solid var(--rcc-border);
    border-radius: var(--rcc-radius-lg);
    padding: var(--rcc-space-md) var(--rcc-space-lg);
    box-shadow: var(--rcc-shadow-xl);
    display: flex;
    align-items: center;
    gap: var(--rcc-space-lg);
    z-index: 100;
    margin-top: var(--rcc-space-xl);
}

.rcc-cost-summary__label {
    font-size: var(--rcc-font-size-sm);
    color: var(--rcc-text-secondary);
    white-space: nowrap;
}

.rcc-cost-summary__total {
    font-size: var(--rcc-font-size-xl);
    font-weight: 800;
    color: var(--rcc-primary);
    white-space: nowrap;
}

.rcc-cost-summary__breakdown {
    display: flex;
    gap: var(--rcc-space-md);
    font-size: 0.75rem;
    color: var(--rcc-text-secondary);
    margin-left: auto;
}

.rcc-cost-summary__dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 4px;
}

.rcc-cost-summary__dot--material { background: var(--rcc-primary); }
.rcc-cost-summary__dot--labor { background: var(--rcc-secondary); }

/* ---- Buttons ---- */
.rcc-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--rcc-space-sm);
    padding: 10px 20px;
    border-radius: var(--rcc-radius-md);
    font-family: inherit;
    font-size: var(--rcc-font-size-sm);
    font-weight: 600;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--rcc-transition-fast);
    text-decoration: none;
    line-height: 1.4;
}

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

.rcc-btn--primary:hover {
    background: var(--rcc-primary-hover);
    border-color: var(--rcc-primary-hover);
    box-shadow: var(--rcc-shadow-md);
}

.rcc-btn--outline {
    background: transparent;
    color: var(--rcc-text);
    border-color: var(--rcc-border);
}

.rcc-btn--outline:hover {
    border-color: var(--rcc-primary);
    color: var(--rcc-primary);
}

.rcc-btn--success { background: var(--rcc-secondary); color: white; border-color: var(--rcc-secondary); }
.rcc-btn--danger { background: var(--rcc-danger); color: white; border-color: var(--rcc-danger); }

.rcc-btn--sm { padding: 6px 12px; font-size: 0.75rem; }
.rcc-btn--full { width: 100%; justify-content: center; }

.rcc-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ---- Form Elements ---- */
.rcc-form-group {
    margin-bottom: var(--rcc-space-md);
}

.rcc-form-group label {
    display: block;
    font-size: var(--rcc-font-size-sm);
    font-weight: 500;
    color: var(--rcc-text);
    margin-bottom: var(--rcc-space-xs);
}

.rcc-input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--rcc-border);
    border-radius: var(--rcc-radius-md);
    font-family: inherit;
    font-size: var(--rcc-font-size-base);
    color: var(--rcc-text);
    background: var(--rcc-bg);
    transition: border-color var(--rcc-transition-fast);
    outline: none;
}

.rcc-input:focus {
    border-color: var(--rcc-primary);
    box-shadow: 0 0 0 3px var(--rcc-primary-light);
}

.rcc-input--sm {
    padding: 6px 10px;
    font-size: var(--rcc-font-size-sm);
    width: 80px;
    text-align: center;
}

.rcc-form-group--checkbox label {
    display: flex;
    align-items: flex-start;
    gap: var(--rcc-space-sm);
    cursor: pointer;
    font-weight: 400;
}

.rcc-form-group--checkbox input[type="checkbox"] {
    margin-top: 3px;
    flex-shrink: 0;
}

/* ---- Navigation ---- */
.rcc-wizard__nav {
    display: flex;
    justify-content: space-between;
    margin-top: var(--rcc-space-xl);
    padding-top: var(--rcc-space-lg);
    border-top: 1px solid var(--rcc-border);
}

.rcc-wizard__nav .rcc-btn svg {
    flex-shrink: 0;
}

/* ---- Modal ---- */
.rcc-modal {
    position: fixed;
    top: 0; right: 0; bottom: 0; left: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--rcc-space-md);
}

.rcc-modal__overlay {
    position: absolute;
    top: 0; right: 0; bottom: 0; left: 0;
    background: rgba(0, 0, 0, 0.5);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
}

.rcc-modal__content {
    position: relative;
    background: var(--rcc-bg);
    border-radius: var(--rcc-radius-xl);
    padding: var(--rcc-space-xl);
    max-width: 440px;
    width: 100%;
    box-shadow: var(--rcc-shadow-xl);
    z-index: 1;
}

.rcc-modal__content h3 {
    font-size: var(--rcc-font-size-lg);
    font-weight: 700;
    margin-bottom: var(--rcc-space-lg);
    color: var(--rcc-text);
}

.rcc-modal__close {
    position: absolute;
    top: var(--rcc-space-md);
    right: var(--rcc-space-md);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: none;
    background: var(--rcc-bg-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--rcc-text-secondary);
    transition: all var(--rcc-transition-fast);
}

.rcc-modal__close:hover { background: var(--rcc-danger); color: white; }

/* ---- Tooltip ---- */
.rcc-tooltip {
    position: relative;
    display: inline-flex;
    cursor: help;
}

.rcc-tooltip__content {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--rcc-text);
    color: white;
    padding: 6px 10px;
    border-radius: var(--rcc-radius-sm);
    font-size: 0.7rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--rcc-transition-fast);
    z-index: 1000;
}

.rcc-tooltip:hover .rcc-tooltip__content { opacity: 1; }

/* ---- Toast Notification ---- */
.rcc-toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 12px 20px;
    border-radius: var(--rcc-radius-md);
    color: white;
    font-size: var(--rcc-font-size-sm);
    font-weight: 500;
    z-index: 10001;
    animation: rccSlideUp 0.3s ease, rccFadeOut 0.3s ease 2.7s forwards;
    box-shadow: var(--rcc-shadow-lg);
}

.rcc-toast--success { background: var(--rcc-secondary); }
.rcc-toast--error { background: var(--rcc-danger); }

@keyframes rccSlideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes rccFadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

/* ---- Spinner ---- */
.rcc-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: rccSpin 0.6s linear infinite;
    display: inline-block;
}

@keyframes rccSpin {
    to { transform: rotate(360deg); }
}

/* ---- Responsive ---- */
@media (min-width: 640px) {
    .rcc-room-grid { grid-template-columns: repeat(3, 1fr); }
    .rcc-category-grid { grid-template-columns: repeat(3, 1fr); }
    .rcc-dimension-card__fields { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 768px) {
    .rcc-calculator { padding: var(--rcc-space-2xl); }
    .rcc-tier-grid { grid-template-columns: repeat(4, 1fr); }
    .rcc-dimension-card__calc { grid-template-columns: 1fr auto 1fr auto 1fr; }
}

@media (min-width: 1024px) {
    .rcc-room-grid { grid-template-columns: repeat(4, 1fr); }
    .rcc-category-grid { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 639px) {
    .rcc-calculator { padding: var(--rcc-space-md); margin: var(--rcc-space-md); border-radius: var(--rcc-radius-lg); }
    .rcc-wizard__progress-step-label { display: none; }
    .rcc-wizard__title { font-size: var(--rcc-font-size-lg); }
    .rcc-cost-summary { flex-direction: column; text-align: center; gap: var(--rcc-space-sm); }
    .rcc-cost-summary__breakdown { margin-left: 0; justify-content: center; }
    .rcc-results__summary { padding: var(--rcc-space-lg); }
    .rcc-results__total-amount { font-size: var(--rcc-font-size-2xl); }
    .rcc-results__charts { grid-template-columns: 1fr; }
    .rcc-results__actions { flex-direction: column; }
    .rcc-results__actions .rcc-btn { width: 100%; justify-content: center; }
    .rcc-tier-grid { grid-template-columns: 1fr 1fr; }
    .rcc-dimension-card__calc { grid-template-columns: 1fr; }
    .rcc-dimension-card__calc-op { display: none; }
    .rcc-top-bar { padding: var(--rcc-space-xs) var(--rcc-space-md); }
    .rcc-currency-selector__select { min-width: 100px; font-size: 0.8rem; padding: 4px 24px 4px 8px; }
}

/* ---- Print ---- */
@media print {
    .rcc-calculator { box-shadow: none; border: none; padding: 0; }
    .rcc-wizard__progress, .rcc-wizard__nav, .rcc-top-bar, .rcc-cost-summary, .rcc-results__actions, .rcc-modal { display: none !important; }
    .rcc-wizard__step { display: none !important; }
    .rcc-wizard__step[data-step="4"] { display: block !important; }
    .rcc-results__room-body { max-height: none !important; padding: var(--rcc-space-md) !important; }
}