/* Positive Shift Calculator Styles */
/* Mobile-first, scoped to .positive-shift-calculator */

.positive-shift-calculator {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: #1a1a1a;
    line-height: 1.6;
}

.positive-shift-calculator *,
.positive-shift-calculator *::before,
.positive-shift-calculator *::after {
    box-sizing: border-box;
}

.positive-shift-calculator-error {
    padding: 20px;
    background: #fee;
    border: 1px solid #fcc;
    border-radius: 8px;
    color: #c00;
}

.psc-progress-bar {
    margin-bottom: 32px;
    padding-bottom: 16px;
    border-bottom: 2px solid #e5e7eb;
}

.psc-progress-indicator {
    text-align: center;
}

.psc-progress-text {
    font-size: 14px;
    font-weight: 600;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.psc-current-step {
    color: #4a90e2;
}

.psc-step {
    display: none;
}

.psc-step.psc-active {
    display: block;
}

.psc-step-content {
    animation: psc-fade-in 0.3s ease-in-out;
}

@keyframes psc-fade-in {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

@media (prefers-reduced-motion: reduce) {
    .psc-step-content {
        animation: none;
    }
}

.psc-step-heading {
    font-size: 28px;
    font-weight: 700;
    margin: 0 0 24px 0;
    color: #111827;
    line-height: 1.2;
}

.psc-step-intro {
    margin: 0 0 24px 0;
    color: #6b7280;
    font-size: 16px;
}

.psc-form-group {
    margin-bottom: 24px;
}

.psc-form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #374151;
    font-size: 15px;
}

.psc-form-group input[type="number"] {
    width: 100%;
    padding: 12px 16px;
    font-size: 16px;
    border: 2px solid #d1d5db;
    border-radius: 8px;
    background: #fff;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.psc-form-group input[type="number"]:focus {
    outline: none;
    border-color: #4a90e2;
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.psc-form-group input[type="number"]:invalid {
    border-color: #ef4444;
}

.psc-radio-group,
.psc-macro-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

@media (min-width: 640px) {

    .psc-radio-group,
    .psc-macro-cards {
        grid-template-columns: 1fr 1fr;
    }
}

.psc-radio-card,
.psc-macro-card,
.psc-activity-card,
.psc-goal-card,
.psc-checkbox-card {
    position: relative;
    display: block;
    cursor: pointer;
}

.psc-radio-card input[type="radio"],
.psc-macro-card input[type="radio"],
.psc-activity-card input[type="radio"],
.psc-goal-card input[type="radio"],
.psc-checkbox-card input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.psc-radio-card .psc-radio-label,
.psc-radio-card .psc-card-content,
.psc-macro-card .psc-card-content,
.psc-activity-card .psc-card-content,
.psc-goal-card .psc-card-content,
.psc-checkbox-card .psc-card-content {
    display: block;
    padding: 16px 20px;
    background: #fff;
    border: 2px solid #d1d5db;
    border-radius: 12px;
    transition: all 0.2s;
    min-height: 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.psc-radio-card .psc-radio-label {
    font-weight: 600;
    color: #374151;
    text-align: center;
}

.psc-radio-card input:checked~.psc-radio-label,
.psc-macro-card input:checked~.psc-card-content,
.psc-activity-card input:checked~.psc-card-content,
.psc-goal-card input:checked~.psc-card-content,
.psc-checkbox-card input:checked~.psc-card-content {
    border-color: #4a90e2;
    background: #eff6ff;
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.psc-radio-card:hover .psc-radio-label,
.psc-macro-card:hover .psc-card-content,
.psc-activity-card:hover .psc-card-content,
.psc-goal-card:hover .psc-card-content,
.psc-checkbox-card:hover .psc-card-content {
    border-color: #9ca3af;
}

.psc-radio-card input:focus~.psc-radio-label,
.psc-macro-card input:focus~.psc-card-content,
.psc-activity-card input:focus~.psc-card-content,
.psc-goal-card input:focus~.psc-card-content,
.psc-checkbox-card input:focus~.psc-card-content {
    outline: 2px solid #4a90e2;
    outline-offset: 2px;
}

.psc-card-content h3,
.psc-card-content h4 {
    margin: 0 0 4px 0;
    font-size: 16px;
    font-weight: 700;
    color: #111827;
}

.psc-card-content p {
    margin: 0;
    font-size: 14px;
    color: #6b7280;
}

.psc-activity-cards,
.psc-goal-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

@media (min-width: 640px) {

    .psc-activity-cards,
    .psc-goal-cards {
        grid-template-columns: 1fr 1fr;
    }
}

.psc-warning {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin-top: 8px;
    padding: 12px;
    background: #fef3c7;
    border-radius: 6px;
    font-size: 13px;
    color: #92400e;
    line-height: 1.4;
}

.psc-warning svg {
    flex-shrink: 0;
    margin-top: 2px;
}

.psc-height-imperial {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.psc-input-group {
    position: relative;
}

.psc-input-group input {
    width: 100%;
    padding: 12px 40px 12px 16px;
    font-size: 16px;
    border: 2px solid #d1d5db;
    border-radius: 8px;
    background: #fff;
}

.psc-input-group .psc-unit {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: #6b7280;
    font-weight: 600;
    font-size: 14px;
}

.psc-error {
    display: block;
    margin-top: 6px;
    font-size: 14px;
    color: #ef4444;
    font-weight: 500;
}

.psc-error:empty {
    display: none;
}

.psc-help-text {
    margin: 8px 0 0 0;
    font-size: 14px;
    color: #6b7280;
}

.psc-macro-cards-three {
    grid-template-columns: 1fr;
}

@media (min-width: 640px) {
    .psc-macro-cards-three {
        grid-template-columns: 1fr 1fr 1fr;
    }
}

.psc-carb-preview {
    margin-top: 24px;
    padding: 20px;
    background: #dbeafe;
    border-radius: 12px;
}

.psc-carb-preview h4 {
    margin: 0 0 8px 0;
    font-size: 16px;
    font-weight: 700;
    color: #1e40af;
}

.psc-carb-value {
    margin: 0 0 8px 0;
    font-size: 18px;
    color: #1e40af;
}

.psc-info-box {
    margin-top: 24px;
    padding: 20px;
    background: #f3f4f6;
    border-radius: 12px;
}

.psc-info-box h4 {
    margin: 0 0 8px 0;
    font-size: 16px;
    font-weight: 700;
    color: #111827;
}

.psc-range-display {
    font-size: 24px;
    font-weight: 700;
    color: #4a90e2;
    margin: 0 0 16px 0;
}

.psc-calorie-display {
    margin-bottom: 24px;
    padding: 16px;
    background: #eff6ff;
    border-radius: 8px;
    text-align: center;
}

.psc-calorie-display p {
    margin: 0;
    font-size: 16px;
    color: #1e40af;
}

.psc-calorie-display strong {
    font-size: 20px;
}

.psc-baseline-water {
    margin-bottom: 24px;
    padding: 16px;
    background: #dbeafe;
    border-radius: 8px;
}

.psc-baseline-water p {
    margin: 0 0 4px 0;
    font-size: 16px;
    color: #1e40af;
}

.psc-baseline-water p:last-child {
    margin-bottom: 0;
}

.psc-hydration-options {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

@media (min-width: 640px) {
    .psc-hydration-options {
        grid-template-columns: 1fr 1fr;
    }
}

.psc-checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    cursor: pointer;
    padding: 12px;
    background: #f9fafb;
    border-radius: 8px;
    transition: background 0.2s;
}

.psc-checkbox-label:hover {
    background: #f3f4f6;
}

.psc-checkbox-label input[type="checkbox"] {
    margin-top: 2px;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.psc-checkbox-label span {
    flex: 1;
    font-size: 15px;
    color: #374151;
    line-height: 1.5;
}

.psc-privacy-note {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-top: 16px;
    padding: 12px 16px;
    background: #eff6ff;
    border-radius: 8px;
    font-size: 14px;
    color: #1e40af;
    line-height: 1.5;
}

.psc-privacy-note svg {
    flex-shrink: 0;
    margin-top: 2px;
}

.psc-navigation {
    display: flex;
    gap: 12px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 2px solid #e5e7eb;
}

.psc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 24px;
    font-size: 16px;
    font-weight: 600;
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    min-height: 48px;
}

.psc-btn:focus {
    outline: 2px solid #4a90e2;
    outline-offset: 2px;
}

.psc-btn-primary {
    background: #4a90e2;
    color: #fff;
    flex: 1;
}

.psc-btn-primary:hover {
    background: #1d4ed8;
}

.psc-btn-primary:active {
    background: #1e40af;
}

.psc-btn-secondary {
    background: #f3f4f6;
    color: #374151;
    border-color: #d1d5db;
}

.psc-btn-secondary:hover {
    background: #e5e7eb;
}

.psc-btn-outline {
    background: #fff;
    color: #374151;
    border-color: #d1d5db;
}

.psc-btn-outline:hover {
    background: #f9fafb;
    border-color: #9ca3af;
}

.psc-btn-back {
    flex: 0 0 auto;
}

.psc-btn-continue {
    flex: 1;
}

.psc-btn svg {
    width: 16px;
    height: 16px;
}

.psc-results {
    animation: psc-fade-in 0.3s ease-in-out;
}

.psc-results-heading {
    font-size: 32px;
    font-weight: 700;
    margin: 0 0 32px 0;
    color: #111827;
    text-align: center;
}

.psc-results-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin-bottom: 32px;
}

@media (min-width: 640px) {
    .psc-results-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.psc-result-card {
    padding: 20px;
    background: #fff;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
}

.psc-result-card h3 {
    margin: 0 0 8px 0;
    font-size: 14px;
    font-weight: 600;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.psc-result-value {
    margin: 0 0 4px 0;
    font-size: 24px;
    font-weight: 700;
    color: #4a90e2;
}

.psc-result-overview {
    margin: 0;
    font-size: 16px;
    color: #111827;
    font-weight: 700;
    line-height: 1.6;
}

.psc-result-meta {
    margin: 0;
    font-size: 14px;
    color: #6b7280;
    font-weight: 500;
}

.psc-result-note {
    margin: 8px 0 0 0;
    font-size: 13px;
    color: #6b7280;
    line-height: 1.5;
    font-style: italic;
}

.psc-overview-section {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    margin-bottom: 32px;
}

@media (min-width: 768px) {
    .psc-overview-section {
        grid-template-columns: 320px 1fr;
        align-items: start;
    }
}

.psc-macro-chart-container {
    background: #fff;
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    padding: 24px;
}

.psc-macro-chart-container h3 {
    margin: 0 0 20px 0;
    font-size: 18px;
    font-weight: 700;
    color: #111827;
    text-align: center;
}

.psc-chart-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
}

.psc-chart-legend {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.psc-legend-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
}

.psc-legend-color {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    flex-shrink: 0;
}

.psc-legend-label {
    flex: 1;
    color: #374151;
    font-weight: 500;
}

.psc-legend-value {
    color: #6b7280;
    font-weight: 600;
}

.psc-overview {
    padding: 24px;
    background: #f9fafb;
    border-radius: 12px;
    font-size: 16px;
    line-height: 1.7;
}

.psc-overview p {
    margin: 0 0 16px 0;
}

.psc-overview p:last-child {
    margin-bottom: 0;
}

.psc-reminder-box {
    margin-bottom: 32px;
    padding: 20px;
    background: #fef3c7;
    border-radius: 12px;
}

.psc-reminder-highlight {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: #92400e;
    line-height: 1.6;
}

.psc-result-actions {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin-bottom: 32px;
}

@media (min-width: 640px) {
    .psc-result-actions {
        grid-template-columns: 1fr 1fr;
    }
}

.psc-remember-section {
    padding: 32px 24px;
    background: #eff6ff;
    border-radius: 12px;
}

.psc-remember-section h3 {
    margin: 0 0 16px 0;
    font-size: 24px;
    font-weight: 700;
    color: #111827;
}

.psc-remember-section p {
    margin: 0 0 16px 0;
    font-size: 16px;
    line-height: 1.7;
    color: #374151;
}

.psc-remember-section p:last-child {
    margin-bottom: 0;
}

.psc-remember-highlight {
    font-weight: 700;
    color: #1e40af;
    background: #dbeafe;
    padding: 16px;
    border-radius: 8px;
}

.psc-print-only {
    display: none;
}

@media (min-width: 768px) {
    .positive-shift-calculator {
        padding: 40px;
    }

    .psc-step-heading {
        font-size: 32px;
    }

    .psc-results-heading {
        font-size: 36px;
    }
}

@media print {
    .positive-shift-calculator {
        max-width: 100%;
        padding: 0;
    }

    .psc-progress-bar,
    .psc-step,
    .psc-navigation,
    .psc-results {
        display: none !important;
    }

    .psc-print-only {
        display: block !important;
    }

    .psc-print-header {
        margin-bottom: 32px;
        padding-bottom: 16px;
        border-bottom: 2px solid #000;
    }

    .psc-print-header h1 {
        margin: 0 0 8px 0;
        font-size: 28px;
        color: #000;
    }

    .psc-print-date {
        margin: 0;
        font-size: 14px;
        color: #666;
    }

    .psc-print-assumptions,
    .psc-print-results,
    .psc-print-overview,
    .psc-print-guidance {
        margin-bottom: 32px;
        page-break-inside: avoid;
    }

    .psc-print-assumptions h2,
    .psc-print-results h2,
    .psc-print-overview h2,
    .psc-print-guidance h2 {
        margin: 0 0 16px 0;
        font-size: 20px;
        color: #000;
    }

    .psc-print-assumptions p,
    .psc-print-results p,
    .psc-print-overview p,
    .psc-print-guidance p {
        margin: 0 0 8px 0;
        font-size: 14px;
        line-height: 1.6;
        color: #000;
    }

    .psc-print-guidance p strong {
        font-weight: 700;
    }
}