/* ================================================
   CALCULATOR - CLEAN MODERN DESIGN
   Matches "Masculine Wellness" Design System
   ================================================ */

/* Page Hero */
.page-hero {
    background: var(--bg-gradient-dark);
    color: var(--text-inverse);
    padding: 1.5rem 0;
    text-align: center;
}

.page-hero h1 {
    color: var(--text-inverse);
    margin-bottom: 0.5rem;
    font-size: 2.25rem;
}

.page-subtitle {
    font-size: 1.125rem;
    opacity: 0.9;
    margin: 0;
}

/* Calculator Section */
.calculator-section {
    background: var(--bg-secondary);
    padding: var(--space-sm) 0;
}

.calculator-wrapper {
    max-width: 1000px;
    margin: 0 auto;
}

.calculator-card {
    background: var(--bg-primary);
    padding: 1.5rem 2rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--space-md);
}

.calculator-card h2 {
    color: var(--text-primary);
    margin-bottom: 0.4rem;
    font-size: 1.25rem;
}

.calculator-intro {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.4;
    font-size: 0.875rem;
}

/* ================================================
   FORM GROUPS
   ================================================ */

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-weight: var(--weight-bold);
    color: var(--text-primary);
    margin-bottom: 0.3rem;
    font-size: 0.875rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

/* Feet and Inches dual inputs */
.height-ft-in {
    display: none;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.height-ft-in.active {
    display: grid;
}

.height-cm {
    display: grid;
}

.height-cm.hidden {
    display: none;
}

/* ================================================
   GENDER SELECTOR
   ================================================ */

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

.gender-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    padding: 0.6rem 0.75rem;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    font-weight: var(--weight-bold);
    color: var(--text-secondary);
    font-size: 0.8125rem;
}

.gender-btn:hover {
    border-color: var(--bronze);
    box-shadow: var(--shadow-sm);
}

.gender-btn.active {
    background: var(--bg-gradient-bronze);
    border-color: var(--bronze);
    color: var(--text-inverse);
}

.gender-icon {
    width: 24px;
    height: 24px;
}

.gender-btn.active .gender-icon {
    stroke: var(--text-inverse);
}

/* ================================================
   INPUT WITH SLIDER - CLEAN LAYOUT
   ================================================ */

.input-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0.5rem;
    align-items: center;
    margin-bottom: 0.4rem;
}

.input-with-units {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.input-number {
    width: 95px;
    padding: 0.375rem 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    font-weight: var(--weight-bold);
    color: var(--text-primary);
    font-family: var(--font-data);
    text-align: center;
    transition: all var(--transition-base);
}

.input-number:focus {
    outline: none;
    border-color: var(--bronze);
    box-shadow: 0 0 0 1px rgba(184, 115, 51, 0.2);
}

.input-number-small {
    width: 60px;
}

/* Unit Toggle Pills */
.unit-pills {
    display: inline-flex;
    background: var(--bg-secondary);
    border-radius: var(--radius-pill);
    padding: 3px;
    gap: 3px;
}

.unit-pill {
    padding: 0.375rem 0.75rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.8125rem;
    font-weight: var(--weight-bold);
    cursor: pointer;
    border-radius: var(--radius-pill);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.unit-pill:hover {
    background: rgba(184, 115, 51, 0.1);
    color: var(--bronze);
}

.unit-pill.active {
    background: var(--bg-gradient-bronze);
    color: var(--text-inverse);
    box-shadow: var(--shadow-sm);
}

/* ================================================
   MODERN HTML5 RANGE SLIDERS
   ================================================ */

.slider-container {
    position: relative;
    padding: 0.25rem 0;
}

.range-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: var(--radius-sm);
    background: var(--gray-200);
    outline: none;
    position: relative;
}

/* Bronze fill effect */
.range-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    margin-top: -7px;
    border-radius: var(--radius-round);
    background: var(--bg-gradient-bronze);
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: background 0.2s, box-shadow 0.2s, transform 0.2s;
    /* Removed 'all' to fix drag lag */
}

/* ... existing code ... */

.range-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: var(--radius-round);
    background: var(--bg-gradient-bronze);
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: background 0.2s, box-shadow 0.2s, transform 0.2s;
    border: none;
}

.range-slider::-webkit-slider-thumb:hover,
.range-slider::-webkit-slider-thumb:active {
    transform: scale(1.2);
    box-shadow: 0 0 0 8px rgba(184, 115, 51, 0.15);
}

.range-slider::-moz-range-thumb:hover,
.range-slider::-moz-range-thumb:active {
    transform: scale(1.2);
    box-shadow: 0 0 0 8px rgba(184, 115, 51, 0.15);
}

/* Slider track fill */
.range-slider::-webkit-slider-runnable-track {
    background: linear-gradient(to right,
            var(--bronze) 0%,
            var(--bronze) var(--slider-progress, 50%),
            var(--gray-200) var(--slider-progress, 50%),
            var(--gray-200) 100%);
    height: 6px;
    border-radius: var(--radius-sm);
}

.range-slider::-moz-range-track {
    background: var(--gray-200);
    height: 6px;
    border-radius: var(--radius-sm);
}

.range-slider::-moz-range-progress {
    background: var(--bronze);
    height: 6px;
    border-radius: var(--radius-sm);
}

/* Slider labels */
.slider-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* ================================================
   ACTIVITY LEVEL & DURATION SELECTORS
   ================================================ */

.form-group select {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.9375rem;
    font-family: var(--font-body);
    font-weight: var(--weight-medium);
    color: var(--text-primary);
    background: var(--bg-primary);
    cursor: pointer;
    transition: all var(--transition-base);
}

.form-group select:focus {
    outline: none;
    border-color: var(--bronze);
    box-shadow: 0 0 0 2px rgba(184, 115, 51, 0.1);
}

.form-group select:hover {
    border-color: var(--bronze);
}

/* ================================================
   SUBMIT BUTTON
   ================================================ */

.btn-full {
    width: 100%;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: var(--weight-black);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: var(--bg-gradient-bronze);
    color: var(--text-inverse);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
    margin-top: 1rem;
}

.btn-full:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

/* ================================================
   RESULTS SECTION
   ================================================ */

.calculator-results {
    animation: fadeInUp 0.5s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.calculator-results {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: var(--radius-lg);
}

.calculator-results h2 {
    color: var(--text-primary);
    margin-bottom: 2rem;
    font-size: 2rem;
    text-align: center;
    font-weight: var(--weight-black);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.result-card {
    background: var(--bg-primary);
    padding: 2rem 1.75rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--bronze);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.result-card::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, rgba(184, 115, 51, 0.1), transparent);
    border-radius: 50%;
    transform: translate(30px, -30px);
}

.result-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-left-width: 6px;
}

.result-label {
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    font-weight: var(--weight-bold);
    margin-bottom: 0.75rem;
}

.result-value {
    font-size: 2.75rem;
    font-weight: var(--weight-black);
    color: var(--bronze);
    font-family: var(--font-display);
    line-height: 1;
    margin-bottom: 0.75rem;
    position: relative;
    z-index: 1;
}

.result-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* ================================================
   CHART VISUALIZATION
   ================================================ */

.chart-container {
    min-height: 400px;
    height: 400px;
    background: var(--bg-primary);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin: 1.5rem 0;
    position: relative;
}

.weight-loss-projection {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: 2rem;
}

.weight-loss-projection h3 {
    color: var(--text-primary);
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    font-weight: var(--weight-black);
}

.projection-disclaimer {
    background: rgba(184, 115, 51, 0.08);
    padding: 1.25rem;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--bronze);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    line-height: 1.6;
}

.projection-disclaimer h4 {
    margin-top: 0;
    color: var(--burnt-sienna);
}

/* Timeline Projection */
.timeline-projection {
    display: grid;
    gap: 1rem;
    margin: 1.5rem 0;
}

.projection-day {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    border-left: 4px solid var(--bronze);
    transition: all var(--transition-base);
}

.projection-day:hover {
    box-shadow: var(--shadow-md);
    transform: translateX(4px);
}

.projection-day-label {
    font-weight: var(--weight-black);
    color: var(--bronze);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.projection-day-content h4 {
    margin: 0 0 0.5rem 0;
    color: var(--text-primary);
    font-size: 1.1rem;
}

.projection-day-content p {
    margin: 0 0 0.75rem 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

.projection-metrics {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    font-size: 0.875rem;
}

.projection-metrics span {
    color: var(--text-secondary);
}

.projection-metrics strong {
    color: var(--text-primary);
    font-weight: var(--weight-bold);
}

/* Insight Panel */
.insight-panel {
    background: linear-gradient(135deg, rgba(26, 35, 50, 0.05), rgba(184, 115, 51, 0.05));
    padding: 1.5rem;
    border-radius: var(--radius-md);
    margin-top: 1.5rem;
}

.insight-panel h4 {
    color: var(--text-primary);
    font-size: 1.2rem;
    margin-bottom: 1rem;
    font-weight: var(--weight-black);
}

.insight-panel p {
    margin-bottom: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.insight-panel p:last-child {
    margin-bottom: 0;
}

.insight-panel strong {
    color: var(--text-primary);
    font-weight: var(--weight-bold);
}

/* ================================================
   COMPARISONS SECTION
   ================================================ */

.comparisons-section {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin: 2rem 0;
}

.comparisons-title {
    color: var(--text-primary);
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    font-weight: var(--weight-black);
    text-align: center;
}

.comparisons-subtitle {
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.05rem;
}

.comparisons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.comparison-card {
    background: linear-gradient(135deg, rgba(184, 115, 51, 0.05), rgba(26, 35, 50, 0.03));
    padding: 2rem 1.5rem;
    border-radius: var(--radius-md);
    text-align: center;
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.comparison-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--bronze), var(--deep-gold));
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.comparison-card:hover::before {
    transform: scaleX(1);
}

.comparison-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--bronze);
    background: linear-gradient(135deg, rgba(184, 115, 51, 0.1), rgba(26, 35, 50, 0.05));
}

.comparison-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.comparison-card:hover .comparison-icon {
    animation: bounce 0.6s ease;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-15px);
    }
}

.comparison-value {
    font-size: 2rem;
    font-weight: var(--weight-black);
    color: var(--bronze);
    font-family: var(--font-display);
    margin-bottom: 0.5rem;
    line-height: 1;
}

.comparison-label {
    font-size: 1rem;
    font-weight: var(--weight-bold);
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.comparison-detail {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-style: italic;
}

/* ================================================
   NEXT STEPS SECTION
   ================================================ */

.next-steps {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    margin: 2rem 0;
}

.next-steps h3 {
    color: var(--text-primary);
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    font-weight: var(--weight-black);
    text-align: center;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.step-card {
    background: var(--bg-secondary);
    padding: 1.75rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    border: 2px solid transparent;
    position: relative;
}

.step-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--bronze);
    background: var(--bg-primary);
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--bg-gradient-bronze);
    color: var(--text-inverse);
    border-radius: var(--radius-round);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: var(--weight-black);
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
}

.step-card h4 {
    color: var(--text-primary);
    font-size: 1.15rem;
    margin-bottom: 0.75rem;
    font-weight: var(--weight-bold);
}

.step-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.95rem;
    margin: 0;
}

.step-card a {
    color: var(--bronze);
    text-decoration: underline;
    font-weight: var(--weight-bold);
    transition: color var(--transition-fast);
}

.step-card a:hover {
    color: var(--deep-gold);
}

/* ================================================
   RESPONSIVE DESIGN
   ================================================ */

@media (max-width: 768px) {
    .calculator-card {
        padding: 1.25rem;
    }

    .calculator-card h2 {
        font-size: 1.5rem;
    }

    .page-hero h1 {
        font-size: 1.875rem;
    }

    .gender-selector {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .input-row {
        grid-template-columns: 1fr;
        gap: var(--space-sm);
    }

    .input-with-units {
        justify-content: space-between;
    }

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

    .chart-container {
        min-height: 300px;
        height: 300px;
        padding: 1rem;
    }

    .comparisons-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .comparison-card {
        padding: 1.5rem 1rem;
    }

    .comparison-icon {
        font-size: 2.5rem;
    }

    .comparison-value {
        font-size: 1.5rem;
    }

    .steps-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }

    .comparisons-section,
    .next-steps,
    .weight-loss-projection,
    .calculator-results {
        padding: 1.5rem;
    }

    .result-value {
        font-size: 2.25rem;
    }
}

@media (max-width: 480px) {
    .calculator-card {
        padding: var(--space-md);
    }

    .unit-pills {
        width: 100%;
        justify-content: space-between;
    }

    .unit-pill {
        flex: 1;
        padding: 0.5rem;
        font-size: 0.8125rem;
    }

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

    .comparison-card {
        padding: 1.5rem;
    }

    .chart-container {
        min-height: 250px;
        height: 250px;
        padding: 0.75rem;
    }

    .comparisons-title,
    .next-steps h3,
    .weight-loss-projection h3 {
        font-size: 1.4rem;
    }

    .step-number {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
    }

    .result-value {
        font-size: 2rem;
    }

    .result-card {
        padding: 1.5rem 1.25rem;
    }

    .calculator-results h2 {
        font-size: 1.5rem;
    }
}