/* ==========================================================================
   DPI Calculators — Shared Styles
   Follows dpi-theme-v2 design tokens from style.css
   ========================================================================== */

/* ── Calculator Page Layout ── */
.calc-page {
    padding-bottom: 0;
}

.calc-page__header {
    padding-bottom: 80px;
    text-align: center;
}

.calc-page__header h1 {
    font-family: var(--font-serif);
    font-size: var(--text-4xl);
    font-weight: var(--weight-bold);
    line-height: var(--leading-tight);
    margin-bottom: var(--space-4);
    color: var(--text-inverse);
}

.calc-page__header p {
    font-family: var(--font-sans);
    font-size: var(--text-lg);
    color: var(--color-navy-200);
    max-width: 600px;
    margin: 0 auto;
    line-height: var(--leading-relaxed);
}

/* ── Calculator Container ── */
.calc-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.calc-layout {
    display: block;
    max-width: 900px;
    margin: -48px auto 0;
    padding: 0 24px;
    position: relative;
    z-index: 1;
}

/* 2-step: show inputs first, results after calculation */
.calc-layout .calc-results {
    display: none;
}

.calc-layout.is-calculated .calc-inputs {
    display: none;
}

.calc-layout.is-calculated .calc-results {
    display: block;
    animation: calcFadeIn 0.3s ease;
}

@keyframes calcFadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Edit button to go back to inputs */
.calc-edit-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: none;
    border: none;
    color: var(--color-teal-600, #0d9488);
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    padding: 0;
}

.calc-edit-btn:hover {
    text-decoration: underline;
}

/* Full-width calculate button at bottom of inputs */
.calc-submit-btn {
    display: block;
    width: 100%;
    padding: 16px;
    margin-top: var(--space-8);
    background: var(--color-gold-500, #eab308);
    color: var(--color-navy-900, #0a1628);
    font-family: var(--font-sans);
    font-size: 16px;
    font-weight: 700;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
}

.calc-submit-btn:hover {
    background: #d4a006;
    transform: translateY(-1px);
}

/* ── Input Panel ── */
.calc-inputs {
    background: var(--bg-primary, #fff);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(10,22,40,0.12), 0 2px 8px rgba(10,22,40,0.06);
    padding: 40px;
}

.calc-inputs__title {
    font-family: var(--font-serif);
    font-size: var(--text-2xl);
    font-weight: var(--weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-6);
}

/* ── Step / Section Progressive Disclosure ── */
.calc-step {
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-6);
    border-bottom: 1px solid var(--color-gray-200);
}

.calc-step:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.calc-step__label {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--color-navy-600);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
    margin-bottom: var(--space-4);
}

.calc-step__number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    flex-shrink: 0;
    border-radius: var(--radius-full);
    background: var(--color-navy-100);
    color: var(--color-navy-700);
    font-size: var(--text-sm);
    font-weight: var(--weight-bold);
    transition: background var(--duration-base) var(--ease-out),
                color var(--duration-base) var(--ease-out);
}

.calc-step.is-complete .calc-step__number {
    background: var(--color-success);
    color: var(--color-white);
}

/* ── Form Fields ── */
.calc-field {
    margin-bottom: var(--space-4);
}

.calc-field:last-child {
    margin-bottom: 0;
}

.calc-field label {
    display: block;
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.calc-field label .label-hint {
    font-weight: var(--weight-regular);
    color: var(--text-tertiary);
    font-size: var(--text-xs);
}

.calc-field__input-wrap {
    position: relative;
}

.calc-field__input-wrap .prefix {
    position: absolute;
    left: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    font-family: var(--font-sans);
    font-size: var(--text-base);
    pointer-events: none;
    user-select: none;
    z-index: 1;
}

.calc-field__input-wrap .suffix {
    position: absolute;
    right: var(--space-3);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    pointer-events: none;
    user-select: none;
    z-index: 1;
}

.calc-field input[type="number"],
.calc-field input[type="text"],
.calc-field select {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-family: var(--font-sans);
    font-size: var(--text-base);
    color: var(--text-primary);
    background: var(--color-gray-50);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    transition: border-color var(--duration-fast) var(--ease-out),
                box-shadow var(--duration-fast) var(--ease-out),
                background var(--duration-fast) var(--ease-out);
    -moz-appearance: textfield;
    appearance: textfield;
}

/* Hide browser number input spinners */
.calc-field input::-webkit-outer-spin-button,
.calc-field input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.calc-field input:focus,
.calc-field select:focus {
    outline: none;
    border-color: var(--color-teal-500);
    box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.15);
    background: var(--bg-primary);
}

.calc-field input:hover,
.calc-field select:hover {
    border-color: var(--color-gray-400);
}

.calc-field.has-prefix input {
    padding-left: var(--space-8);
}

.calc-field.has-suffix input {
    padding-right: calc(var(--space-8) + var(--space-4));
}

/* ── Two-Column Field Grid ── */
.calc-field-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
}

/* ── Results Panel ── */
.calc-results {
    background: var(--bg-primary, #fff);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(10,22,40,0.12), 0 2px 8px rgba(10,22,40,0.06);
    padding: 40px;
    position: static;
    max-height: none;
    overflow: visible;
}

/* Custom scrollbar for results panel */
.calc-results::-webkit-scrollbar {
    width: 4px;
}

.calc-results::-webkit-scrollbar-track {
    background: var(--color-gray-100);
    border-radius: var(--radius-full);
}

.calc-results::-webkit-scrollbar-thumb {
    background: var(--color-gray-300);
    border-radius: var(--radius-full);
}

.calc-results::-webkit-scrollbar-thumb:hover {
    background: var(--color-gray-400);
}

.calc-results__title {
    font-family: var(--font-serif);
    font-size: var(--text-2xl);
    font-weight: var(--weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-6);
}

.calc-results__empty {
    text-align: center;
    padding: var(--space-12) var(--space-4);
    color: var(--text-tertiary);
}

.calc-results__empty svg {
    width: 48px;
    height: 48px;
    margin-bottom: var(--space-4);
    opacity: 0.4;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.calc-results__empty p {
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    line-height: var(--leading-normal);
}

/* ── Big Number Display ── */
.calc-big-number {
    text-align: center;
    padding: var(--space-6);
    background: var(--color-navy-50);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-6);
}

.calc-big-number + .calc-big-number {
    margin-top: calc(-1 * var(--space-3));
}

.calc-big-number__value {
    font-family: var(--font-serif);
    font-size: var(--text-4xl);
    font-weight: var(--weight-bold);
    color: var(--color-navy-800);
    line-height: 1;
    font-variant-numeric: tabular-nums;
    transition: color var(--duration-base) var(--ease-out);
}

.calc-big-number__label {
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-top: var(--space-2);
    line-height: var(--leading-normal);
}

/* ── Status Indicators ── */
.status-good  { color: var(--color-success); }
.status-warning { color: var(--color-warning); }
.status-danger  { color: var(--color-error); }

.status-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: var(--radius-full);
    margin-right: var(--space-2);
    flex-shrink: 0;
}

.status-dot.status-good    { background: var(--color-success); }
.status-dot.status-warning { background: var(--color-warning); }
.status-dot.status-danger  { background: var(--color-error); }

/* ── Comparison Table ── */
.calc-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-sans);
    font-size: var(--text-sm);
}

.calc-table thead th {
    text-align: left;
    padding: var(--space-3) var(--space-4);
    font-weight: var(--weight-semibold);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
    font-size: var(--text-xs);
    border-bottom: 2px solid var(--color-gray-200);
    background: transparent;
}

.calc-table tbody td {
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--color-gray-100);
    color: var(--text-primary);
    vertical-align: middle;
}

.calc-table tbody tr:last-child td {
    border-bottom: none;
}

.calc-table tfoot td {
    padding: var(--space-3) var(--space-4);
    border-top: 2px solid var(--color-gray-200);
    color: var(--text-primary);
}

.calc-table .cell-right {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.calc-table .row-highlight {
    background: var(--color-navy-50);
    font-weight: var(--weight-semibold);
}

/* ── Chart Container ── */
.calc-chart {
    margin: var(--space-6) 0;
    padding: var(--space-4);
    background: var(--color-gray-50);
    border-radius: var(--radius-lg);
}

.calc-chart canvas {
    width: 100% !important;
    height: auto !important;
    max-height: 300px;
}

/* ── Recommendations / Insights ── */
.calc-insight {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-3);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    line-height: var(--leading-normal);
}

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

.calc-insight--good {
    background: rgba(5, 150, 105, 0.08);
    border-left: 3px solid var(--color-success);
}

.calc-insight--warning {
    background: rgba(217, 119, 6, 0.08);
    border-left: 3px solid var(--color-warning);
}

.calc-insight--danger {
    background: rgba(220, 38, 38, 0.08);
    border-left: 3px solid var(--color-error);
}

.calc-insight__icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    margin-top: 2px;
}

.calc-insight__body {
    flex: 1;
}

.calc-insight__body strong {
    display: block;
    font-weight: var(--weight-semibold);
    margin-bottom: var(--space-1);
    color: var(--text-primary);
}

/* ── Action Buttons ── */
.calc-actions {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-6);
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-gray-200);
    flex-wrap: wrap;
}

.calc-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    line-height: 1;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--duration-fast) var(--ease-out),
                color var(--duration-fast) var(--ease-out),
                box-shadow var(--duration-fast) var(--ease-out);
    border: none;
    text-decoration: none;
    white-space: nowrap;
}

.calc-btn:focus-visible {
    outline: 2px solid var(--color-teal-500);
    outline-offset: 2px;
}

.calc-btn svg {
    flex-shrink: 0;
}

.calc-btn--primary {
    background: var(--color-teal-600);
    color: var(--color-white);
}

.calc-btn--primary:hover {
    background: var(--color-teal-700);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.calc-btn--secondary {
    background: var(--color-gray-100);
    color: var(--text-primary);
}

.calc-btn--secondary:hover {
    background: var(--color-gray-200);
    color: var(--text-primary);
}

.calc-btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    pointer-events: none;
}

/* ── Soft Email Prompt Banner (appears after 3 interactions) ── */
.calc-email-prompt {
    display: none;
    margin-top: var(--space-6);
    padding: var(--space-4) var(--space-5);
    background: var(--color-navy-50);
    border: 1px solid var(--color-navy-100);
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    align-items: center;
    gap: var(--space-4);
}

.calc-email-prompt.is-visible {
    display: flex;
}

.calc-email-prompt p {
    flex: 1;
    margin: 0;
    line-height: var(--leading-normal);
}

/* ── Email Capture Modal ── */
.calc-email-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: var(--z-modal);
    align-items: center;
    justify-content: center;
    background: rgba(10, 22, 40, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.calc-email-modal.is-open {
    display: flex;
}

.calc-email-modal__card {
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    max-width: 440px;
    width: 90%;
    box-shadow: var(--shadow-xl);
    position: relative;
    animation: calc-modal-in var(--duration-slow) var(--ease-out) both;
}

@keyframes calc-modal-in {
    from {
        opacity: 0;
        transform: translateY(12px) scale(0.97);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.calc-email-modal__close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: none;
    background: var(--color-gray-100);
    border-radius: var(--radius-full);
    cursor: pointer;
    color: var(--text-secondary);
    transition: background var(--duration-fast) var(--ease-out),
                color var(--duration-fast) var(--ease-out);
    flex-shrink: 0;
}

.calc-email-modal__close:hover {
    background: var(--color-gray-200);
    color: var(--text-primary);
}

.calc-email-modal__close:focus-visible {
    outline: 2px solid var(--color-teal-500);
    outline-offset: 2px;
}

.calc-email-modal__eyebrow {
    font-family: var(--font-sans);
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
    color: var(--color-teal-600);
    margin-bottom: var(--space-3);
}

.calc-email-modal__card h3 {
    font-family: var(--font-serif);
    font-size: var(--text-xl);
    font-weight: var(--weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--space-3);
    padding-right: var(--space-8);
    line-height: var(--leading-snug);
}

.calc-email-modal__card p {
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-6);
}

.calc-email-modal__fields {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}

.calc-email-modal__field {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.calc-email-modal__field label {
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--text-primary);
}

.calc-email-modal__field input {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-family: var(--font-sans);
    font-size: var(--text-base);
    color: var(--text-primary);
    background: var(--color-gray-50);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    transition: border-color var(--duration-fast) var(--ease-out),
                box-shadow var(--duration-fast) var(--ease-out),
                background var(--duration-fast) var(--ease-out);
    box-sizing: border-box;
}

.calc-email-modal__field input:focus {
    outline: none;
    border-color: var(--color-teal-500);
    box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.15);
    background: var(--bg-primary);
}

.calc-email-modal__field input::placeholder {
    color: var(--text-tertiary);
}

.calc-email-modal__submit {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background: var(--color-teal-600);
    color: var(--color-white);
    font-family: var(--font-sans);
    font-size: var(--text-base);
    font-weight: var(--weight-semibold);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--duration-fast) var(--ease-out),
                box-shadow var(--duration-fast) var(--ease-out);
    margin-top: var(--space-1);
}

.calc-email-modal__submit:hover {
    background: var(--color-teal-700);
    box-shadow: var(--shadow-md);
}

.calc-email-modal__submit:focus-visible {
    outline: 2px solid var(--color-teal-500);
    outline-offset: 2px;
}

.calc-email-modal__submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.calc-email-modal__privacy {
    font-family: var(--font-sans);
    font-size: var(--text-xs);
    color: var(--text-tertiary);
    text-align: center;
    line-height: var(--leading-normal);
    margin-top: var(--space-3);
}

.calc-email-modal__skip {
    display: block;
    width: 100%;
    margin-top: var(--space-4);
    text-align: center;
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    cursor: pointer;
    border: none;
    background: none;
    padding: var(--space-2) 0;
    transition: color var(--duration-fast) var(--ease-out);
}

.calc-email-modal__skip:hover {
    color: var(--text-secondary);
}

.calc-email-modal__skip:focus-visible {
    outline: 2px solid var(--color-teal-500);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

.calc-email-modal__success {
    display: none;
    text-align: center;
    padding: var(--space-8) var(--space-4);
}

.calc-email-modal__success-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--space-4);
    background: rgba(5, 150, 105, 0.1);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-success);
}

.calc-email-modal__success p {
    color: var(--text-secondary);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    margin-bottom: 0;
}

.calc-email-modal__success strong {
    display: block;
    font-family: var(--font-serif);
    font-size: var(--text-xl);
    color: var(--text-primary);
    margin-bottom: var(--space-3);
}

/* ── Error State ── */
.calc-email-modal__error {
    display: none;
    padding: var(--space-3) var(--space-4);
    background: rgba(220, 38, 38, 0.08);
    border: 1px solid var(--color-error);
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    color: var(--color-error);
    margin-top: var(--space-3);
}

.calc-email-modal__error.is-visible {
    display: block;
}

/* ── Responsive ── */
@media (max-width: 900px) {
    .calc-layout {
        grid-template-columns: 1fr;
        margin-top: calc(-1 * var(--space-8));
    }

    .calc-results {
        position: static;
        max-height: none;
    }

    .calc-field-grid {
        grid-template-columns: 1fr;
    }

    .calc-email-prompt {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-3);
    }
}

@media (max-width: 600px) {
    .calc-inputs,
    .calc-results {
        padding: var(--space-5);
    }

    .calc-actions {
        flex-direction: column;
    }

    .calc-btn {
        justify-content: center;
        width: 100%;
    }

    .calc-email-modal__card {
        padding: var(--space-6) var(--space-5);
    }
}

/* ── Print Styles ── */
@media print {
    .site-header,
    .site-footer,
    .newsletter-cta,
    .calc-inputs,
    .calc-actions,
    .calc-email-modal,
    .calc-email-prompt,
    .nav-drawer {
        display: none !important;
    }

    .calc-layout {
        display: block;
    }

    .calc-results {
        position: static;
        box-shadow: none;
        max-height: none;
        overflow: visible;
        padding: 0;
    }

    .calc-print-header {
        display: block !important;
    }

    .calc-big-number {
        background: none;
        border: 2px solid #333;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .calc-chart canvas {
        max-height: 250px;
    }

    .calc-table {
        page-break-inside: avoid;
    }

    .calc-insight {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    a[href]::after {
        content: none;
    }
}

/* ── Print-Only Header (hidden on screen) ── */
.calc-print-header {
    display: none;
    text-align: center;
    padding: var(--space-6) 0;
    border-bottom: 2px solid #333;
    margin-bottom: var(--space-6);
    font-family: var(--font-sans);
}

.calc-print-header__logo {
    font-family: var(--font-serif);
    font-size: var(--text-2xl);
    font-weight: var(--weight-bold);
    color: #0a3d62;
    display: block;
    margin-bottom: var(--space-1);
}

.calc-print-header__meta {
    font-size: var(--text-sm);
    color: #4b5563;
}

/* ── SEO Content Section Typography ── */
.calc-seo-content h2 {
    font-family: var(--font-serif);
    font-size: var(--text-3xl, 30px);
    font-weight: var(--weight-bold, 700);
    line-height: var(--leading-tight, 1.25);
    margin-top: 40px;
    margin-bottom: 16px;
    color: var(--text-primary, #111827);
}

.calc-seo-content h2:first-child {
    margin-top: 0;
}

.calc-seo-content h3 {
    font-family: var(--font-serif);
    font-size: var(--text-2xl, 24px);
    font-weight: var(--weight-bold, 700);
    line-height: var(--leading-snug, 1.35);
    margin-top: 32px;
    margin-bottom: 12px;
    color: var(--text-primary, #111827);
}

.calc-seo-content p {
    font-size: var(--text-base, 16px);
    line-height: 1.7;
    margin-bottom: 16px;
    color: var(--text-secondary, #4b5563);
}

.calc-seo-content ul,
.calc-seo-content ol {
    margin-bottom: 20px;
    padding-left: 24px;
}

.calc-seo-content li {
    font-size: var(--text-base, 16px);
    line-height: 1.7;
    margin-bottom: 10px;
    color: var(--text-secondary, #4b5563);
}

.calc-seo-content a {
    color: var(--color-teal-600, #0d9488);
    text-decoration: none;
}

.calc-seo-content a:hover {
    text-decoration: underline;
}