/* ============================================================
   CalBD Theme — calculator.css
   All styles specific to the calculator page layout,
   tool card, result box, share panel, formula, FAQ, related
   ============================================================ */

/* ── Calculator Page Layout ──────────────────────────────────── */
.calc-page-layout {
    padding-top: var(--sp-8);
    padding-bottom: var(--sp-16);
}

.calc-page-title {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: 800;
    line-height: var(--leading-tight);
    letter-spacing: -0.02em;
    margin-bottom: var(--sp-4);
    background: linear-gradient(135deg, var(--clr-text) 0%, var(--clr-primary) 70%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.calc-seo-intro {
    font-size: var(--text-base);
    color: var(--clr-text-2);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--sp-6);
    padding: var(--sp-4) var(--sp-5);
    background: var(--clr-primary-light);
    border-left: 4px solid var(--clr-primary);
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

.calc-two-col {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--sp-8);
    align-items: start;
}

.calc-main-col {
    display: flex;
    flex-direction: column;
    gap: var(--sp-6);
    min-width: 0;
}

.calc-sidebar {
    position: sticky;
    top: calc(var(--header-h) + var(--sp-6));
    display: flex;
    flex-direction: column;
    gap: var(--sp-5);
}

/* ── Calculator Tool Card ────────────────────────────────────── */
.calc-card {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: box-shadow var(--ease-normal);
}

.calc-card:hover {
    box-shadow: var(--shadow-lg);
}

.calc-card-header {
    background: linear-gradient(135deg, var(--clr-primary) 0%, var(--clr-secondary) 100%);
    padding: var(--sp-6) var(--sp-8);
    position: relative;
    overflow: hidden;
}

.calc-card-header::after {
    content: '';
    position: absolute;
    top: -40%;
    right: -5%;
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    pointer-events: none;
}

.calc-category-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-1);
    background: rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.9);
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    margin-bottom: var(--sp-3);
}

.calc-card-title {
    color: #fff;
    font-size: var(--text-2xl);
    font-weight: 800;
    margin: 0;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.calc-card-body {
    padding: var(--sp-6) var(--sp-8);
}

/* ── Input Fields (from post content) ───────────────────────── */
/* These styles apply to any input/select inside the calc card */
.calc-card-body input[type="number"],
.calc-card-body input[type="text"],
.calc-card-body input[type="email"],
.calc-card-body select,
.calc-card-body textarea,
/* also target .calbd-input class that authors can use */
.calbd-input {
    width: 100%;
    padding: var(--sp-4) var(--sp-4);
    border: 2px solid var(--clr-border);
    border-radius: var(--radius-lg);
    font-size: var(--text-xl);
    font-family: var(--font-display);
    font-weight: 600;
    color: var(--clr-text);
    background: var(--clr-surface);
    transition: border-color var(--ease-fast), box-shadow var(--ease-fast), background var(--ease-fast);
    outline: none;
    appearance: none;
    -webkit-appearance: none;
    inputmode: numeric;
}

.calc-card-body input[type="number"]:focus,
.calc-card-body input[type="text"]:focus,
.calc-card-body select:focus,
.calbd-input:focus {
    border-color: var(--clr-primary);
    box-shadow: 0 0 0 4px rgb(26 86 219 / 0.12);
    background: var(--clr-primary-light);
}

.calc-card-body input[type="number"]::-webkit-inner-spin-button,
.calc-card-body input[type="number"]::-webkit-outer-spin-button {
    opacity: 1;
}

/* Input group (label + input) */
.calbd-field,
.calc-field {
    display: flex;
    flex-direction: column;
    gap: var(--sp-2);
    margin-bottom: var(--sp-5);
}

.calbd-label,
.calc-label {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--clr-text-2);
    letter-spacing: 0.02em;
}

.calbd-hint,
.calc-hint {
    font-size: var(--text-xs);
    color: var(--clr-text-3);
    margin-top: var(--sp-1);
}

/* Input adornment (currency symbol, %, etc) */
.calbd-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.calbd-input-wrap .calbd-input {
    padding-left: var(--sp-10);
}

.calbd-prefix {
    position: absolute;
    left: var(--sp-4);
    font-weight: 700;
    font-size: var(--text-lg);
    color: var(--clr-text-3);
    pointer-events: none;
    user-select: none;
}

.calbd-suffix {
    position: absolute;
    right: var(--sp-4);
    font-weight: 700;
    font-size: var(--text-sm);
    color: var(--clr-text-3);
    pointer-events: none;
}

/* Calculator input grid */
.calbd-grid,
.calc-inputs-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-4);
}

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

.calbd-full {
    grid-column: 1 / -1;
}

/* Select */
.calc-card-body select {
    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='%2394a3b8' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--sp-4) center;
    padding-right: var(--sp-10);
    cursor: pointer;
}

/* Radio / Toggle buttons */
.calbd-radio-group {
    display: flex;
    gap: var(--sp-2);
    flex-wrap: wrap;
}

.calbd-radio-btn {
    position: relative;
}

.calbd-radio-btn input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.calbd-radio-btn label {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--sp-2) var(--sp-5);
    border: 2px solid var(--clr-border);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--clr-text-2);
    cursor: pointer;
    transition: all var(--ease-fast);
}

.calbd-radio-btn input[type="radio"]:checked+label {
    border-color: var(--clr-primary);
    background: var(--clr-primary);
    color: #fff;
}

.calbd-radio-btn label:hover {
    border-color: var(--clr-primary);
    color: var(--clr-primary);
}

/* Range slider */
.calbd-range {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: var(--radius-full);
    background: var(--clr-border);
    outline: none;
    border: none;
    padding: 0;
    cursor: pointer;
}

.calbd-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--clr-primary);
    cursor: pointer;
    box-shadow: var(--shadow-primary);
    transition: transform var(--ease-fast);
}

.calbd-range::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

/* ── Card Footer (Calculate buttons) ────────────────────────── */
.calc-card-footer {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    padding: 0 var(--sp-8) var(--sp-6);
}

.btn-calculate {
    flex: 1;
    font-size: var(--text-base);
    padding: var(--sp-4) var(--sp-8);
    border-radius: var(--radius-xl);
    letter-spacing: 0.01em;
    animation: pulseBtn 4s ease-in-out infinite;
}

@keyframes pulseBtn {

    0%,
    100% {
        box-shadow: var(--shadow-primary);
    }

    50% {
        box-shadow: 0 4px 30px rgb(26 86 219 / 0.5);
    }
}

/* ── Result Card ─────────────────────────────────────────────── */
.calc-result-section {}

.result-card {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
    border-radius: var(--radius-2xl);
    padding: var(--sp-8);
    color: #fff;
    box-shadow: var(--shadow-xl);
    animation: resultSlideIn var(--ease-normal) forwards;
}

@keyframes resultSlideIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }

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

.result-header {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    margin-bottom: var(--sp-6);
}

.result-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #60a5fa;
}

.result-label {
    font-size: var(--text-sm);
    font-weight: 700;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin: 0;
}

.result-value-wrap {
    display: flex;
    align-items: flex-end;
    gap: var(--sp-3);
    margin-bottom: var(--sp-6);
}

.result-value {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 800;
    color: #fff;
    line-height: 1;
    letter-spacing: -0.03em;
    background: linear-gradient(90deg, #fff, #93c5fd);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all var(--ease-normal);
}

.result-unit {
    font-size: var(--text-lg);
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 0.4rem;
}

/* Secondary results breakdown */
.result-breakdown {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--sp-3);
    margin-bottom: var(--sp-6);
    padding-top: var(--sp-5);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.result-breakdown-item {
    background: rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    padding: var(--sp-3) var(--sp-4);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.breakdown-label {
    font-size: var(--text-xs);
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    margin-bottom: var(--sp-1);
}

.breakdown-value {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 700;
    color: #93c5fd;
}

/* Chart */
.result-chart-wrap {
    background: rgba(255, 255, 255, 0.04);
    border-radius: var(--radius-xl);
    padding: var(--sp-4);
    margin-bottom: var(--sp-5);
}

/* Action buttons in result card */
.result-actions {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    flex-wrap: wrap;
    padding-top: var(--sp-5);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.result-actions .btn-action {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.85);
}

.result-actions .btn-action:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.25);
}

/* ── Sticky Mobile Result Bar ────────────────────────────────── */
.sticky-result-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    display: flex;
    align-items: center;
    gap: var(--sp-4);
    padding: var(--sp-4) var(--sp-5);
    background: rgba(15, 23, 42, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.3);
    animation: slideUp var(--ease-normal) forwards;
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }

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

.sticky-result-label {
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--text-sm);
    flex-shrink: 0;
}

.sticky-result-value {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: 800;
    color: #60a5fa;
    flex: 1;
}

/* ── Share Card ──────────────────────────────────────────────── */
.share-card {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-2xl);
    padding: var(--sp-6) var(--sp-8);
    box-shadow: var(--shadow-sm);
}

.share-card-head {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    margin-bottom: var(--sp-2);
}

.share-card-head svg {
    color: var(--clr-primary);
}

.share-card-head h3 {
    font-size: var(--text-lg);
    font-weight: 700;
    margin: 0;
}

.share-desc {
    font-size: var(--text-sm);
    color: var(--clr-text-2);
    margin-bottom: var(--sp-5);
}

.share-url-row {
    display: flex;
    gap: var(--sp-3);
    margin-bottom: var(--sp-5);
}

.share-url-field {
    flex: 1;
    border: 2px solid var(--clr-border);
    border-radius: var(--radius-lg);
    padding: var(--sp-3) var(--sp-4);
    font-size: var(--text-sm);
    color: var(--clr-text-2);
    background: var(--clr-surface-2);
    outline: none;
    cursor: pointer;
    font-family: var(--font-mono);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.share-copy-btn {
    flex-shrink: 0;
    border-radius: var(--radius-lg);
    padding: var(--sp-3) var(--sp-5);
    gap: var(--sp-2);
}

.share-platforms {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    flex-wrap: wrap;
}

.share-platforms-label {
    font-size: var(--text-xs);
    color: var(--clr-text-3);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    font-weight: 600;
}

/* ── Formula Card ────────────────────────────────────────────── */
.calc-formula-section {
    display: flex;
    flex-direction: column;
    gap: var(--sp-5);
}

.formula-card {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-2xl);
    padding: var(--sp-6) var(--sp-8);
    box-shadow: var(--shadow-sm);
}

.formula-body {}

/* Math formula blocks that authors can use */
.calbd-formula {
    background: linear-gradient(135deg, #f0fdf4, #dcfce7);
    border: 1px solid #86efac;
    border-radius: var(--radius-xl);
    padding: var(--sp-5) var(--sp-6);
    text-align: center;
    font-family: var(--font-mono);
    font-size: var(--text-lg);
    font-weight: 700;
    color: #15803d;
    margin: var(--sp-5) 0;
    letter-spacing: 0.03em;
}

.calbd-example-box {
    background: var(--clr-surface-2);
    border-radius: var(--radius-xl);
    padding: var(--sp-5);
    border: 1px solid var(--clr-border);
    margin-bottom: var(--sp-4);
}

.calbd-example-box h4 {
    font-size: var(--text-sm);
    font-weight: 700;
    color: var(--clr-primary);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    margin-bottom: var(--sp-3);
}

/* ── FAQ Accordion ────────────────────────────────────────────── */
.calc-faq-section {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-2xl);
    padding: var(--sp-6) var(--sp-8);
    box-shadow: var(--shadow-sm);
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: var(--sp-2);
}

.faq-item {
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: border-color var(--ease-fast), box-shadow var(--ease-fast);
}

.faq-item.is-open {
    border-color: var(--clr-primary);
    box-shadow: 0 0 0 3px rgb(26 86 219 / 0.08);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-4);
    width: 100%;
    text-align: left;
    padding: var(--sp-4) var(--sp-5);
    background: var(--clr-surface);
    font-weight: 600;
    font-size: var(--text-sm);
    color: var(--clr-text);
    cursor: pointer;
    transition: background var(--ease-fast);
}

.faq-question:hover {
    background: var(--clr-surface-2);
}

.faq-item.is-open .faq-question {
    background: var(--clr-primary-light);
    color: var(--clr-primary);
}

.faq-chevron {
    flex-shrink: 0;
    transition: transform var(--ease-fast);
    color: var(--clr-text-3);
}

.faq-item.is-open .faq-chevron {
    transform: rotate(180deg);
    color: var(--clr-primary);
}

.faq-answer {
    overflow: hidden;
    max-height: 0;
    transition: max-height var(--ease-slow);
}

.faq-item.is-open .faq-answer {
    max-height: 600px;
}

.faq-answer-inner {
    padding: var(--sp-4) var(--sp-5);
    border-top: 1px solid var(--clr-border);
    font-size: var(--text-sm);
    color: var(--clr-text-2);
    line-height: var(--leading-relaxed);
}

/* ── Related Calculators ──────────────────────────────────────── */
.related-calculators-section {
    margin-top: var(--sp-10);
    padding-top: var(--sp-8);
    border-top: 2px solid var(--clr-border);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--sp-4);
}

.related-card {
    display: flex;
    flex-direction: column;
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    text-decoration: none;
    transition: all var(--ease-normal);
}

.related-card:hover {
    border-color: var(--clr-primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.related-thumb {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
}

.related-thumb-placeholder {
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, var(--clr-primary-light), #e8e8ff);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--clr-primary);
}

.related-card-body {
    padding: var(--sp-3) var(--sp-4);
}

.related-card-title {
    font-size: var(--text-sm);
    font-weight: 700;
    color: var(--clr-text);
    margin-bottom: var(--sp-1);
    line-height: var(--leading-snug);
    transition: color var(--ease-fast);
}

.related-card:hover .related-card-title {
    color: var(--clr-primary);
}

.related-card-cat {
    font-size: var(--text-xs);
    color: var(--clr-text-3);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ── Page Layout ──────────────────────────────────────────────── */
.page-container {
    max-width: 860px;
    padding-top: var(--sp-8);
    padding-bottom: var(--sp-16);
}

.page-title {
    font-size: var(--text-4xl);
    font-weight: 800;
    margin-bottom: var(--sp-6);
}

.page-content {
    margin-top: var(--sp-6);
}

/* ── Sidebar Widgets ──────────────────────────────────────────── */
.widget {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-xl);
    padding: var(--sp-5);
    box-shadow: var(--shadow-xs);
}

.widget-title {
    font-size: var(--text-base);
    font-weight: 700;
    margin-bottom: var(--sp-4);
    padding-bottom: var(--sp-3);
    border-bottom: 2px solid var(--clr-border);
}

/* ── Print Styles ─────────────────────────────────────────────── */
@media print {

    .site-header,
    .site-footer,
    .calc-share-section,
    .related-calculators-section,
    .sticky-result-bar,
    .result-actions,
    .btn-calculate,
    .btn-reset,
    .calbd-toc,
    .calbd-breadcrumb {
        display: none !important;
    }

    .result-card {
        background: #fff !important;
        color: #000 !important;
        box-shadow: none !important;
        border: 2px solid #ccc !important;
    }

    .result-value {
        -webkit-text-fill-color: #000 !important;
        color: #000 !important;
    }

    .result-value-wrap {
        border-color: #ccc;
    }

    body {
        font-size: 12pt;
    }
}