/* ==================== TAX PAGE ==================== */
.tax-page {
    max-width: 600px;
    margin: 0 auto;
    padding: 16px 16px calc(32px + var(--safe-bottom));
    animation: fadeInUp 0.4s ease-out forwards;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Header */
.tax-page-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    padding-top: var(--safe-top);
}

.tax-page-back {
    background: none;
    border: none;
    color: var(--gold);
    padding: 8px;
    margin: -8px;
    cursor: pointer;
    border-radius: 8px;
    transition: background 0.2s;
}

.tax-page-back:active {
    background: var(--gold-dim);
}

.tax-page-back svg {
    width: 24px;
    height: 24px;
}

.tax-page-title {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 500;
    color: var(--text-primary);
    flex: 1;
    letter-spacing: -0.01em;
}

.tax-page-year-selector {
    display: flex;
    align-items: center;
    gap: 4px;
    background: var(--gold-dim);
    border-radius: 8px;
    padding: 4px 6px;
}

.tax-page-year {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 600;
    color: var(--gold);
    padding: 2px 6px;
    min-width: 44px;
    text-align: center;
}

.tax-page-year-btn {
    background: none;
    border: none;
    color: var(--gold);
    font-size: 20px;
    font-weight: 300;
    padding: 2px 6px;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.2s;
    line-height: 1;
}

.tax-page-year-btn:active {
    opacity: 1;
}

.tax-page-year-btn:disabled {
    opacity: 0.2;
    cursor: default;
}

/* Hero Card */
.tax-page-hero {
    background: var(--bg-card);
    border: 1px solid var(--border-accent);
    border-radius: 20px;
    padding: 28px 24px 24px;
    margin-bottom: 24px;
    position: relative;
    overflow: hidden;
}

.tax-page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 24px;
    right: 24px;
    height: 2px;
    background: linear-gradient(90deg, transparent 0%, var(--gold) 30%, var(--gold) 70%, transparent 100%);
    opacity: 0.6;
}

.tax-page-hero-label {
    font-family: var(--font-body);
    font-size: 11px;
    font-weight: 500;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}

.tax-page-hero-amount {
    font-family: var(--font-display);
    font-size: 42px;
    font-weight: 500;
    color: var(--champagne);
    letter-spacing: -0.02em;
    margin-bottom: 20px;
    transition: color 0.3s;
}

.tax-page-hero-amount.refund {
    color: var(--positive);
}

.tax-page-hero-stats {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 16px;
}

.tax-page-hero-stat {
    text-align: center;
}

.tax-page-hero-stat-value {
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.tax-page-hero-stat-value.positive {
    color: var(--positive);
}

.tax-page-hero-stat-value.negative {
    color: var(--negative);
}

.tax-page-hero-stat-label {
    font-size: 10px;
    font-weight: 400;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.tax-page-comparison {
    margin-top: 16px;
    text-align: center;
}

.tax-page-comparison-badge {
    display: inline-block;
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 500;
    padding: 4px 12px;
    border-radius: 12px;
    letter-spacing: 0.02em;
}

.tax-page-comparison-badge.up {
    color: var(--negative);
    background: var(--negative-dim);
}

.tax-page-comparison-badge.down {
    color: var(--positive);
    background: var(--positive-dim);
}

.tax-page-comparison-badge.neutral {
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.06);
}

/* Sections */
.tax-page-section {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    padding: 18px 20px;
    margin-bottom: 16px;
}

.tax-page-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.tax-page-section-title {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 500;
    color: var(--text-primary);
    letter-spacing: 0.01em;
}

.tax-page-section-chevron {
    width: 16px;
    height: 16px;
    opacity: 0.4;
    transition: transform 0.3s ease;
}

.tax-page-section-chevron svg {
    width: 100%;
    height: 100%;
    stroke: var(--champagne);
    stroke-width: 2;
    fill: none;
}

.tax-page-section-chevron.expanded {
    transform: rotate(180deg);
}

.tax-page-collapsible {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.35s ease;
}

.tax-page-collapsible > * {
    overflow: hidden;
}

.tax-page-collapsible.expanded {
    grid-template-rows: 1fr;
}

.tax-page-loading {
    font-family: var(--font-body);
    font-size: 13px;
    color: var(--text-tertiary);
    padding: 12px 0;
}

/* Account Selector */
.tax-page-account-list {
    padding-top: 12px;
}

.tax-page-account-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-subtle);
}

.tax-page-account-item:last-child {
    border-bottom: none;
}

.tax-page-account-checkbox {
    width: 20px;
    height: 20px;
    accent-color: var(--gold);
    cursor: pointer;
    flex-shrink: 0;
}

.tax-page-account-name {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    flex: 1;
}

.tax-page-account-select {
    background: var(--bg-card-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 12px;
    padding: 6px 8px;
    cursor: pointer;
    min-width: 100px;
}

.tax-page-account-select:focus {
    outline: none;
    border-color: var(--gold);
}

.tax-page-demo-badge {
    display: inline-block;
    font-size: 9px;
    font-weight: 600;
    font-family: 'Outfit', sans-serif;
    letter-spacing: 0.5px;
    padding: 1px 6px;
    border-radius: 4px;
    background: rgba(96, 165, 250, 0.15);
    color: #60a5fa;
    border: 1px solid rgba(96, 165, 250, 0.3);
    vertical-align: middle;
    margin-left: 6px;
}

.tax-page-category-badge {
    display: inline-block;
    font-size: 10px;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 6px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    white-space: nowrap;
}

.tax-page-category-badge.standard {
    color: var(--positive);
    background: var(--positive-dim);
}

.tax-page-category-badge.ovriga {
    color: var(--warning);
    background: rgba(251, 191, 36, 0.12);
}

/* Account Breakdown Cards */
.tax-page-account-breakdown {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 20px;
}

.tax-page-breakdown-card {
    background: var(--bg-card-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 16px;
}

.tax-page-breakdown-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}

.tax-page-breakdown-name {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.tax-page-breakdown-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 12px 16px;
}

.tax-page-breakdown-stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.tax-page-breakdown-stat-label {
    font-size: 10px;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-tertiary);
}

.tax-page-breakdown-stat-value {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.tax-page-breakdown-stat-value.positive {
    color: var(--positive);
}

.tax-page-breakdown-stat-value.negative {
    color: var(--negative);
}

.tax-page-breakdown-tax {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tax-page-breakdown-tax-label {
    font-size: 11px;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.tax-page-breakdown-tax-value {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 500;
    color: var(--champagne);
}

.tax-page-breakdown-tax-value.refund {
    color: var(--positive);
}

.tax-page-breakdown-rate {
    font-size: 12px;
    color: var(--text-tertiary);
    margin-left: 8px;
}

/* Quarterly Grid */
.tax-page-quarter-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.tax-page-quarter-card {
    background: var(--bg-card-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 14px;
    transition: border-color 0.3s;
}

.tax-page-quarter-card.current {
    border-color: var(--gold);
    box-shadow: 0 0 12px rgba(201, 169, 98, 0.1);
}

.tax-page-quarter-label {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.tax-page-quarter-card.current .tax-page-quarter-label {
    color: var(--gold);
}

.tax-page-quarter-stats {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tax-page-quarter-stat {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tax-page-quarter-stat-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-tertiary);
}

.tax-page-quarter-stat-value {
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
}

.tax-page-quarter-stat-value.positive {
    color: var(--positive);
}

.tax-page-quarter-stat-value.negative {
    color: var(--negative);
}

/* Quarter Bar Chart */
.tax-page-quarter-bar {
    margin-top: 10px;
    height: 4px;
    background: var(--border-subtle);
    border-radius: 2px;
    overflow: hidden;
}

.tax-page-quarter-bar-fill {
    height: 100%;
    border-radius: 2px;
    transition: width 0.5s ease;
}

.tax-page-quarter-bar-fill.positive {
    background: var(--positive);
}

.tax-page-quarter-bar-fill.negative {
    background: var(--negative);
}

/* K4 Summary */
.tax-page-k4 {
    padding-top: 12px;
}

.tax-page-k4-category {
    margin-bottom: 16px;
}

.tax-page-k4-category:last-child {
    margin-bottom: 0;
}

.tax-page-k4-category-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.tax-page-k4-category-title {
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.tax-page-k4-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 16px;
}

.tax-page-k4-item {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.tax-page-k4-item-label {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-tertiary);
}

.tax-page-k4-item-value {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.tax-page-k4-separator {
    height: 1px;
    background: var(--border-subtle);
    margin: 16px 0;
}

.tax-page-k4-copy {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: var(--gold-dim);
    border: 1px solid var(--border-accent);
    border-radius: 10px;
    color: var(--gold);
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 500;
    padding: 10px;
    width: 100%;
    cursor: pointer;
    transition: background 0.2s;
    margin-top: 12px;
}

.tax-page-k4-copy:active {
    background: rgba(201, 169, 98, 0.25);
}

.tax-page-k4-copy svg {
    width: 16px;
    height: 16px;
}

.tax-page-no-data {
    text-align: center;
    padding: 24px;
    color: var(--text-tertiary);
    font-size: 14px;
}

/* Responsive */
@media (min-width: 768px) {
    .tax-page {
        max-width: 720px;
        padding: 24px;
    }

    .tax-page-title {
        font-size: 32px;
    }

    .tax-page-hero-amount {
        font-size: 48px;
    }

    .tax-page-quarter-grid {
        grid-template-columns: 1fr 1fr 1fr 1fr;
    }

    .tax-page-breakdown-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}