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

:root {
    --primary-color: #169b62;
    --primary-dark: #0d7a47;
    --secondary-color: #2c3e50;
    --background-color: #f0f4f8;
    --card-background: #ffffff;
    --text-color: #1a2332;
    --text-light: #64748b;
    --border-color: #e2e8f0;
    --error-color: #e74c3c;
    --success-color: #27ae60;
    --shadow: 0 1px 4px rgba(0,0,0,0.08), 0 4px 16px rgba(0,0,0,0.06);
    --shadow-hover: 0 4px 20px rgba(0,0,0,0.13);
    --input-bg: #f8fafc;
    --toggle-bg: #e0e0e0;
    --toggle-knob: #ffffff;
    --deduction-bg: #fff5f5;
    --net-bg: #f0fff4;
    --tab-active-bg: #edfaf3;
}

[data-theme="dark"] {
    --primary-color: #1ec776;
    --primary-dark: #17a863;
    --secondary-color: #94a3b8;
    --background-color: #0f172a;
    --card-background: #1e293b;
    --text-color: #e2e8f0;
    --text-light: #64748b;
    --border-color: #334155;
    --error-color: #f87171;
    --success-color: #4ade80;
    --shadow: 0 2px 8px rgba(0,0,0,0.4);
    --shadow-hover: 0 4px 20px rgba(0,0,0,0.5);
    --input-bg: #0f172a;
    --toggle-bg: #1ec776;
    --toggle-knob: #1e293b;
    --deduction-bg: rgba(248,113,113,0.08);
    --net-bg: rgba(74,222,128,0.08);
    --tab-active-bg: rgba(30,199,118,0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    padding: 20px;
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    background-color: var(--card-background);
    border-radius: 16px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

/* ========== Header ========== */
header {
    background: linear-gradient(135deg, #0d7a47 0%, #169b62 60%, #1ec776 100%);
    color: white;
    padding: 36px 40px 32px;
    text-align: center;
    position: relative;
}

header h1 {
    font-size: 2.2rem;
    margin-bottom: 8px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.subtitle {
    font-size: 1rem;
    opacity: 0.88;
    font-weight: 400;
}

/* Dark Mode Toggle */
.dark-mode-toggle {
    position: absolute;
    top: 20px;
    right: 24px;
    display: flex;
    align-items: center;
    gap: 8px;
    z-index: 10;
}

.dark-mode-toggle .toggle-label {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.85);
    font-weight: 500;
    user-select: none;
}

.toggle-switch {
    position: relative;
    width: 50px;
    height: 26px;
    cursor: pointer;
}

.toggle-switch input { opacity: 0; width: 0; height: 0; }

.toggle-slider {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: rgba(255,255,255,0.3);
    border-radius: 26px;
    transition: background-color 0.3s ease;
}

.toggle-slider::before {
    content: '';
    position: absolute;
    height: 20px; width: 20px;
    left: 3px; bottom: 3px;
    background-color: white;
    border-radius: 50%;
    transition: transform 0.3s ease;
}

.toggle-switch input:checked + .toggle-slider { background-color: rgba(0,0,0,0.35); }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(24px); }

.toggle-icon { font-size: 1.1rem; line-height: 1; }

/* ========== Main Layout ========== */
main {
    padding: 32px 36px 40px;
}

.calculator-section {
    margin-bottom: 36px;
}

/* ========== Hero Input Bar ========== */
.hero-input-bar {
    display: flex;
    align-items: stretch;
    gap: 0;
    background: var(--card-background);
    border: 2px solid var(--border-color);
    border-radius: 50px;
    padding: 6px 6px 6px 20px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    max-width: 760px;
}

.hero-input-bar:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(22,155,98,0.12), var(--shadow);
}

.hero-income-field {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
}

.hero-income-prefix {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
    flex-shrink: 0;
}

.hero-income-field input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-color);
    padding: 10px 0;
    min-width: 0;
    font-family: inherit;
}

.hero-income-field input::placeholder {
    color: var(--text-light);
    font-weight: 400;
    font-size: 1rem;
}

.hero-per-field {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: 6px 14px;
    border-left: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    min-width: 110px;
    flex-shrink: 0;
}

.hero-per-label {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--primary-color);
    margin-bottom: 2px;
    line-height: 1;
}

.hero-per-select {
    border: none;
    outline: none;
    background: transparent;
    font-size: 0.97rem;
    font-weight: 600;
    color: var(--text-color);
    cursor: pointer;
    font-family: inherit;
    padding: 0;
    width: 100%;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2364748b' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0 center;
    padding-right: 16px;
}

.hero-calculate-btn {
    flex-shrink: 0;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 44px;
    padding: 12px 32px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease, box-shadow 0.2s ease;
    font-family: inherit;
    white-space: nowrap;
}

.hero-calculate-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(22,155,98,0.35);
}

.hero-calculate-btn:active {
    transform: translateY(0);
}

/* Secondary options layout */
.secondary-options {
    max-width: 760px;
}

.form-row-2col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* ========== Live annual preview ========== */
.income-annual-preview {
    font-size: 0.82rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-top: -14px;
    margin-bottom: 12px;
    padding-left: 4px;
    letter-spacing: 0.01em;
    transition: opacity 0.2s ease;
}

/* ========== Results hero strip ========== */
.results-hero-strip {
    display: flex;
    align-items: stretch;
    background: var(--card-background);
    border: 2px solid var(--border-color);
    border-radius: 14px;
    margin-bottom: 24px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.results-hero-item {
    flex: 1;
    padding: 18px 22px;
    text-align: center;
}

.results-hero-item.highlight {
    background: linear-gradient(135deg, #0d7a47 0%, #169b62 100%);
}

[data-theme="dark"] .results-hero-item.highlight {
    background: linear-gradient(135deg, #17a863 0%, #1ec776 100%);
}

.results-hero-divider {
    width: 1px;
    background: var(--border-color);
    flex-shrink: 0;
}

.results-hero-label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.7px;
    color: var(--text-light);
    font-weight: 600;
    margin-bottom: 5px;
}

.results-hero-item.highlight .results-hero-label {
    color: rgba(255,255,255,0.8);
}

.results-hero-value {
    font-size: 1.55rem;
    font-weight: 800;
    color: var(--text-color);
    line-height: 1.1;
}

.results-hero-value.deduction { color: var(--error-color); }

.results-hero-item.highlight .results-hero-value {
    color: #fff;
}

.results-hero-sub {
    font-size: 0.78rem;
    color: var(--text-light);
    margin-top: 3px;
    font-weight: 500;
}

.results-hero-item.highlight .results-hero-sub {
    color: rgba(255,255,255,0.75);
}

@media (max-width: 600px) {
    .results-hero-strip {
        flex-direction: column;
    }
    .results-hero-divider {
        width: auto;
        height: 1px;
    }
    .results-hero-item { padding: 14px 18px; }
}

/* ========== Mode Tabs ========== */
.mode-toggle {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 2px solid var(--border-color);
}

.mode-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    background: var(--background-color);
    border: 2px solid var(--border-color);
    padding: 10px 8px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-light);
    cursor: pointer;
    border-radius: 10px;
    transition: all 0.18s ease;
    white-space: nowrap;
    line-height: 1.2;
    text-align: center;
}

.mode-btn-icon {
    font-size: 1.15rem;
    line-height: 1;
}

.mode-btn-text {
    font-size: 0.75rem;
    font-weight: 600;
}

.mode-btn:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
    background: var(--tab-active-bg);
    transform: translateY(-1px);
}

.mode-btn.active {
    color: var(--primary-color);
    border-color: var(--primary-color);
    background: var(--tab-active-bg);
    font-weight: 700;
    box-shadow: 0 2px 8px rgba(22,155,98,0.15);
}

@media (max-width: 640px) {
    .mode-toggle {
        grid-template-columns: repeat(4, 1fr);
        gap: 6px;
    }
    .mode-btn {
        padding: 8px 4px;
    }
    .mode-btn-icon { font-size: 1.1rem; }
    .mode-btn-text { font-size: 0.65rem; white-space: normal; }
}

@media (max-width: 400px) {
    .mode-toggle {
        grid-template-columns: repeat(4, 1fr);
    }
    .mode-btn-text { font-size: 0.6rem; }
}

/* ========== Forms ========== */
.tax-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 720px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-weight: 600;
    color: var(--secondary-color);
    font-size: 0.9rem;
    letter-spacing: 0.01em;
}

.form-group input,
.form-group select {
    padding: 11px 14px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.97rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.3s ease;
    font-family: inherit;
    background-color: var(--input-bg);
    color: var(--text-color);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(22,155,98,0.12);
    background-color: var(--card-background);
}

.form-group input:invalid { border-color: var(--error-color); }

.error-message {
    color: var(--error-color);
    font-size: 0.82rem;
    min-height: 18px;
    display: block;
}

.optional-label {
    font-size: 0.75rem;
    color: var(--text-light);
    font-weight: 400;
    margin-left: 4px;
}

.hint-text {
    font-size: 0.76rem;
    color: var(--text-light);
    margin-top: 3px;
}

.credits-toggle-group {
    flex-direction: row;
    align-items: center;
    gap: 10px;
    padding: 11px 14px;
    background-color: var(--background-color);
    border-radius: 8px;
    border: 2px solid var(--border-color);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--text-color);
    cursor: pointer;
    font-weight: 500;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    width: 17px;
    height: 17px;
    accent-color: var(--primary-color);
    cursor: pointer;
    flex-shrink: 0;
}

/* ========== Buttons ========== */
.button-group {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    margin-top: 8px;
}

.calculate-btn,
.clear-btn {
    padding: 13px 28px;
    font-size: 1rem;
    font-weight: 700;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    box-sizing: border-box;
}

.calculate-btn {
    background-color: var(--primary-color);
    color: white;
    border: 2px solid var(--primary-color);
}

.calculate-btn:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-hover);
}

.calculate-btn:active { transform: translateY(0); }

.clear-btn {
    background-color: transparent;
    color: var(--text-light);
    border: 2px solid var(--border-color);
}

.clear-btn:hover {
    border-color: var(--text-light);
    color: var(--text-color);
    background-color: var(--background-color);
    transform: translateY(-1px);
}

.clear-btn:active { transform: translateY(0); }

.mode-description {
    color: var(--text-light);
    font-size: 0.92rem;
    margin-bottom: 22px;
    padding: 12px 16px;
    background: var(--background-color);
    border-radius: 8px;
    border-left: 3px solid var(--primary-color);
    line-height: 1.6;
    max-width: 720px;
}

/* ========== Results Section ========== */
.results-section {
    background-color: var(--background-color);
    border-radius: 12px;
    padding: 28px;
    margin-top: 32px;
    transition: background-color 0.3s ease;
}

.results-section h2 {
    color: var(--secondary-color);
    margin-bottom: 22px;
    font-size: 1.6rem;
    text-align: center;
    font-weight: 700;
}

.results-tabs {
    display: flex;
    flex-wrap: nowrap;
    gap: 6px;
    margin-bottom: 24px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 4px;
}

.results-tabs::-webkit-scrollbar { display: none; }

.tab-btn {
    background: var(--card-background);
    border: 2px solid var(--border-color);
    padding: 8px 15px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-light);
    cursor: pointer;
    border-radius: 7px;
    transition: all 0.2s ease;
    white-space: nowrap;
}

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

.tab-btn.active {
    color: var(--primary-color);
    border-color: var(--primary-color);
    background: var(--tab-active-bg);
    font-weight: 700;
}

.tab-content { display: none; }
.tab-content.active { display: block; }

.tab-content h3 {
    color: var(--secondary-color);
    margin-bottom: 18px;
    font-size: 1.2rem;
    text-align: center;
    font-weight: 700;
}

.tab-content > .increment-column {
    max-width: 560px;
    margin: 0 auto;
}

.comparison-results-grid .increment-column { margin: 0; }

/* ========== Increment / Card Rows ========== */
.increment-input-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    align-items: end;
}

.increment-column {
    background-color: var(--card-background);
    border-radius: 12px;
    padding: 22px 24px;
    box-shadow: var(--shadow);
    transition: background-color 0.3s ease;
}

.increment-column h4 {
    color: var(--secondary-color);
    margin-bottom: 16px;
    font-size: 1.05rem;
    text-align: center;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border-color);
    font-weight: 700;
}

.increment-column.current-salary h4 { border-bottom-color: var(--primary-color); }
.increment-column.new-salary h4 { border-bottom-color: var(--success-color); }

.increment-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 9px 0;
    border-bottom: 1px solid var(--border-color);
    gap: 12px;
}

.increment-row:last-child { border-bottom: none; }

.increment-row-label {
    font-size: 0.88rem;
    color: var(--text-light);
    font-weight: 500;
}

.increment-row-value {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-color);
    text-align: right;
    white-space: nowrap;
}

.increment-row-value.deduction { color: var(--error-color); }
.increment-row-value.net { color: var(--success-color); font-size: 1.15rem; }

.increment-row.highlight {
    background-color: var(--background-color);
    margin: 0 -12px;
    padding: 10px 12px;
    border-radius: 7px;
    border-bottom: none;
}

/* Arrow divider */
.increment-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding-top: 60px;
    color: var(--primary-color);
    font-size: 2rem;
}

.increment-arrow .arrow-icon { font-size: 2.5rem; line-height: 1; }
.increment-arrow .arrow-label {
    font-size: 0.72rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 5px;
}

/* Difference summary card */
.increment-difference-card {
    margin-top: 22px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-radius: 12px;
    padding: 22px;
    color: white;
    text-align: center;
}

.increment-difference-card h4 {
    margin-bottom: 14px;
    font-size: 1rem;
    opacity: 0.95;
    font-weight: 700;
}

.increment-diff-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
}

.increment-diff-item {
    background: rgba(255,255,255,0.15);
    border-radius: 8px;
    padding: 14px 12px;
}

.increment-diff-item .diff-label {
    font-size: 0.75rem;
    opacity: 0.85;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 5px;
}

.increment-diff-item .diff-value {
    font-size: 1.3rem;
    font-weight: 700;
}

.increment-diff-item .diff-percent {
    font-size: 0.82rem;
    opacity: 0.85;
    margin-top: 3px;
}

.increment-comparison {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 20px;
    align-items: start;
}

.increment-section { margin-bottom: 30px; }
.increment-form { display: flex; flex-direction: column; gap: 25px; margin-bottom: 25px; }
.increment-results { margin-top: 20px; }

/* ========== Comparison container ========== */
.comparison-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    margin-bottom: 22px;
}

.comparison-column h3 { color: var(--secondary-color); margin-bottom: 18px; font-size: 1.2rem; text-align: center; }
.comparison-column h4 { color: var(--secondary-color); margin-bottom: 14px; font-size: 1rem; text-align: center; }
.comparison-section { margin-bottom: 36px; }
.comparison-section h4 {
    color: var(--secondary-color);
    margin-bottom: 18px;
    font-size: 1.2rem;
    text-align: center;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
}

.comparison-results-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    margin-bottom: 28px;
}

/* ========== Action bar ========== */
.results-action-bar {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 20px;
}

.action-btn {
    padding: 9px 18px;
    font-size: 0.88rem;
    font-weight: 600;
    border-radius: 7px;
    cursor: pointer;
    background-color: var(--card-background);
    color: var(--secondary-color);
    border: 2px solid var(--border-color);
    transition: all 0.2s ease;
}

.action-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-1px);
}

/* ========== Feature Results ========== */
.feature-results { margin-top: 24px; }

.historical-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* ========== Chart Styles ========== */
.chart-container {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 24px;
    justify-content: center;
}

.chart-wrapper {
    width: 100%;
    max-width: 480px;
    background-color: var(--card-background);
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--shadow);
    transition: background-color 0.3s ease;
}

.chart-wrapper h4 {
    color: var(--secondary-color);
    margin-bottom: 14px;
    font-size: 1rem;
    text-align: center;
    font-weight: 700;
}

.chart-wrapper canvas { max-height: 350px; }

/* ========== Band Vis ========== */
.band-vis-legend {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 20px;
    padding: 16px;
    background: var(--card-background);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.band-legend-item { display: flex; align-items: center; gap: 10px; font-size: 0.88rem; }
.band-legend-swatch { width: 16px; height: 16px; border-radius: 3px; flex-shrink: 0; }
.band-legend-label { flex: 1; color: var(--text-color); }
.band-legend-value { font-weight: 600; color: var(--text-color); white-space: nowrap; }
.band-legend-value em { font-style: normal; color: var(--text-light); font-size: 0.83rem; }

/* ========== Breakdown table ========== */
.breakdown-section { margin-bottom: 28px; }
.breakdown-section h4 { color: var(--secondary-color); margin-bottom: 14px; font-size: 1.1rem; }

.breakdown-table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--card-background);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.breakdown-table thead { background-color: var(--primary-color); color: white; }
.breakdown-table th {
    padding: 11px 15px;
    text-align: left;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.breakdown-table td {
    padding: 11px 15px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-color);
    font-size: 0.95rem;
}
.breakdown-table tbody tr:last-child td { border-bottom: none; }
.breakdown-table tbody tr:hover { background-color: var(--background-color); }

/* ========== Tax year ========== */
.tax-year { font-weight: 600; color: var(--secondary-color); }

/* ========== Footer ========== */
footer {
    background-color: var(--background-color);
    padding: 24px 36px;
    text-align: center;
    border-top: 1px solid var(--border-color);
    transition: background-color 0.3s ease;
}

footer p { color: var(--text-light); font-size: 0.88rem; margin-bottom: 6px; }

footer section {
    margin-top: 28px;
    padding-top: 28px;
    border-top: 2px solid var(--border-color);
}

footer section h2 { color: var(--secondary-color); font-size: 1.4rem; margin-bottom: 22px; text-align: center; }
footer section h3 { color: var(--secondary-color); font-size: 1rem; margin-bottom: 8px; font-weight: 600; }

footer section div {
    margin-bottom: 22px;
    padding: 14px;
    background-color: var(--card-background);
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
}

footer section p { font-size: 0.92rem; color: var(--text-color); line-height: 1.7; margin: 0; }

/* ========== Contracting Calculator ========== */
.contracting-headline {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin-bottom: 24px;
}

.contracting-headline-item {
    background: var(--card-background);
    border-radius: 10px;
    padding: 16px 14px;
    box-shadow: var(--shadow);
    text-align: center;
    border: 2px solid var(--border-color);
}

.contracting-headline-item.highlight-green {
    background: linear-gradient(135deg, #0d7a47 0%, #169b62 100%);
    border-color: transparent;
    color: #fff;
}

[data-theme="dark"] .contracting-headline-item.highlight-green {
    background: linear-gradient(135deg, #17a863 0%, #1ec776 100%);
}

.contracting-headline-label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    opacity: 0.75;
    margin-bottom: 6px;
    color: var(--text-light);
}

.contracting-headline-item.highlight-green .contracting-headline-label {
    color: rgba(255,255,255,0.85);
    opacity: 1;
}

.contracting-headline-value {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--text-color);
}

.contracting-headline-item.highlight-green .contracting-headline-value {
    color: #fff;
}

.contracting-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

/* Input cards side by side */
.ctr-input-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 4px;
}

.ctr-input-card {
    background: var(--background-color);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.ctr-input-card-title {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 8px;
    margin-bottom: 2px;
}

/* Hidden benefits section */
.ctr-hidden-costs-section {
    background: var(--background-color);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    padding: 18px 20px;
}

.ctr-hidden-costs-title {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--border-color);
}

.ctr-benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}

/* Divider inside result columns */
.ctr-divider {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--primary-color);
    border-top: 2px solid var(--border-color);
    padding-top: 10px;
    margin-top: 6px;
    margin-bottom: 2px;
}

@media (max-width: 900px) {
    .ctr-input-grid { grid-template-columns: 1fr; }
    .ctr-benefits-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 600px) {
    .ctr-benefits-grid { grid-template-columns: 1fr; }
}

.contracting-disclaimer {
    font-size: 0.76rem;
    color: rgba(255,255,255,0.75);
    margin-top: 14px;
    line-height: 1.5;
    font-style: italic;
    text-align: left;
}

/* ========== Responsive ========== */
@media (max-width: 900px) {
    main { padding: 24px 20px 32px; }
    header { padding: 28px 20px 24px; }
    header h1 { font-size: 1.8rem; }

    .comparison-container,
    .comparison-results-grid { grid-template-columns: 1fr; }

    .contracting-headline { grid-template-columns: 1fr 1fr; }
    .contracting-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
    body { padding: 6px; }
    header { padding: 20px 16px 18px; }
    header h1 { font-size: 1.4rem; }
    .subtitle { font-size: 0.82rem; }
    .dark-mode-toggle { top: 10px; right: 12px; }
    .dark-mode-toggle .toggle-label { display: none; }

    main { padding: 14px 12px 24px; }

    /* Hero bar stacks on mobile */
    .hero-input-bar {
        flex-wrap: wrap;
        border-radius: 14px;
        padding: 12px 14px;
        gap: 10px;
    }
    .hero-income-field { width: 100%; flex: unset; }
    .hero-per-field {
        border-left: none;
        border-right: none;
        border-top: 1px solid var(--border-color);
        border-bottom: 1px solid var(--border-color);
        padding: 8px 0;
        flex-direction: row;
        align-items: center;
        gap: 10px;
        min-width: unset;
        flex: 1;
    }
    .hero-per-label { margin-bottom: 0; }
    .hero-calculate-btn { width: 100%; padding: 13px; }

    /* Secondary form */
    .form-row-2col { grid-template-columns: 1fr; }
    .secondary-options { max-width: 100%; }

    /* Tabs */
    .mode-toggle { gap: 5px; }

    .increment-input-row { grid-template-columns: 1fr; }
    .increment-comparison { grid-template-columns: 1fr; }
    .increment-arrow { flex-direction: row; padding-top: 0; gap: 10px; }
    .increment-arrow .arrow-icon { transform: rotate(90deg); }

    .historical-grid { grid-template-columns: 1fr; }
    .contracting-headline { grid-template-columns: 1fr 1fr; }

    .results-action-bar { justify-content: stretch; }
    .action-btn { flex: 1; text-align: center; }

    /* Results tabs — horizontal scroll */
    .results-tabs { gap: 5px; }
    .tab-btn { font-size: 0.78rem; padding: 7px 10px; flex-shrink: 0; }

    /* Results hero strip stacks */
    .results-hero-strip { flex-direction: column; }
    .results-hero-divider { width: auto; height: 1px; }
    .results-hero-item { padding: 14px 18px; }

    .results-section { padding: 20px 14px; }
}

@media (max-width: 420px) {
    header h1 { font-size: 1.2rem; }
    .contracting-headline { grid-template-columns: 1fr 1fr; gap: 10px; }

    /* Prevent iOS zoom on inputs */
    .form-group input,
    .form-group select,
    .hero-income-field input,
    .hero-per-select { font-size: 16px; }
}