/**
 * Box 3 Belasting Simulator - Stylesheet
 *
 * Modern, responsive design met donkerblauw thema
 * Mobile-first approach
 */


/* ===== CSS Reset & Base Styles ===== */

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

:root {
    /* Kleuren - Donkerblauw thema (betrouwbaarheid, Belastingdienst) */
    --primary-color: #1a365d; /* Donkerblauw */
    --secondary-color: #2c5282; /* Medium blauw */
    --text-color: #333333;
    --text-light: #666666;
    --background: #FFFFFF;
    --surface: #F8F9FA;
    --border: #E0E0E0;
    --error: #DC3545;
    --success: #28A745;

    /* Schaduwen */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.1);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--surface);
}


/* ===== Container ===== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md);
}


/* ===== Header ===== */

.header {
    text-align: center;
    padding: 0;
    margin-bottom: var(--spacing-sm);
}

.header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.header .subtitle {
    font-size: 1rem;
    color: var(--text-light);
}


/* ===== Info Section ===== */

.info-section {
    padding: var(--spacing-md) 0;
    margin-bottom: var(--spacing-sm);
}

.info-section p {
    margin: 0 0 var(--spacing-sm) 0;
    line-height: 1.8;
}

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

.info-section ul {
    margin: var(--spacing-xs) 0 0 var(--spacing-lg);
    padding: 0;
}

.info-section li {
    margin-bottom: var(--spacing-xs);
}

.info-toggle {
    margin-bottom: 0;
}

.info-expanded {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    /* Snellere collapse: start snel, vertraag aan het einde */
    transition: max-height 0.3s cubic-bezier(0, 0.7, 0.3, 1), opacity 0.2s ease-out;
}

.info-expanded.expanded {
    max-height: 400px;
    opacity: 1;
    /* Soepele expand: start langzaam, versnel */
    transition: max-height 0.4s ease-out, opacity 0.3s ease-in;
}

.read-more-link {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 500;
}

.read-more-link:hover {
    text-decoration: underline;
}


/* ===== Summary View ===== */

.summary-view {
    margin-bottom: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    position: relative;
}

.summary-header {
    background: var(--primary-color);
    padding: var(--spacing-sm) var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.summary-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: white;
    margin: 0;
}

.summary-header .summary-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    position: static;
}

.btn-icon-header {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.2);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.btn-icon-header:hover {
    background: rgba(255, 255, 255, 0.3);
}

.btn-text-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.4rem 0.75rem;
    border: none;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.2);
    color: white;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.btn-text-header:hover {
    background: rgba(255, 255, 255, 0.3);
}

.summary-body {
    background: linear-gradient(135deg, #EBF4FF 0%, #C3DAFE 100%);
    padding: var(--spacing-lg);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.summary-intro {
    font-size: 0.9rem;
    color: var(--text-light);
    margin: 0 0 var(--spacing-sm) 0;
}

.summary-text {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--text-color);
    flex: 1;
    margin: 0;
}

.summary-text strong {
    color: var(--primary-color);
}

.summary-text .highlight-tax {
    font-size: 1.45rem;
    font-weight: 700;
    color: #C53030;
}

.summary-text .highlight-quantity {
    font-weight: 700;
    color: var(--primary-color);
}

.btn-icon {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.6);
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
}

.btn-icon:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-text {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.5rem 1rem;
    border: none;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.6);
    color: var(--text-color);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
}

.btn-text:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.details-link {
    display: inline-block;
    margin-top: var(--spacing-md);
    color: var(--secondary-color);
    font-size: 0.9rem;
    text-decoration: none;
}

.details-link:hover {
    text-decoration: underline;
}


/* ===== Inline Form Controls ===== */

.inline-input-wrapper,
.inline-select-wrapper {
    display: inline-flex;
    align-items: center;
    position: relative;
    vertical-align: baseline;
}

/* Inline text input for quantity */
.inline-input {
    font: inherit;
    font-weight: 700;
    color: inherit;
    background: rgba(255, 255, 255, 0.3);
    border: 1px dashed rgba(0, 0, 0, 0.3);
    border-radius: 4px;
    padding: 2px 6px;
    width: auto;
    min-width: 3ch;
    max-width: 10ch;
    text-align: center;
    transition: all 0.2s ease;
}

.inline-input:hover {
    border-style: solid;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.5);
}

.inline-input:focus {
    outline: none;
    border-style: solid;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(255, 107, 0, 0.2);
    background: rgba(255, 255, 255, 0.6);
}

/* Inline select dropdown */
.inline-select {
    appearance: none;
    -webkit-appearance: none;
    font: inherit;
    font-weight: 700;
    color: inherit;
    background: rgba(255, 255, 255, 0.3);
    border: 1px dashed rgba(0, 0, 0, 0.3);
    border-radius: 4px;
    padding: 2px 22px 2px 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.inline-select:hover {
    border-style: solid;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.5);
}

.inline-select:focus {
    outline: none;
    border-style: solid;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(255, 107, 0, 0.2);
    background: rgba(255, 255, 255, 0.6);
}

/* Caret icon for inline select */
.inline-caret {
    position: absolute;
    right: 6px;
    width: 10px;
    height: 10px;
    pointer-events: none;
    opacity: 0.5;
    transition: opacity 0.2s ease;
}

.inline-select-wrapper:hover .inline-caret {
    opacity: 0.8;
}

.inline-select:focus + .inline-caret {
    opacity: 1;
}


/* ===== CTA Arrow ===== */

.cta-arrow {
    position: absolute;
    right: -280px;
    bottom: -320px;
    width: 800px;
    height: 600px;
    pointer-events: none;
    z-index: 10;
}

.cta-arrow svg {
    width: 100%;
    height: 100%;
}

/* Arrow draw animation */
.arrow-path {
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
}

.arrow-head {
    opacity: 0;
}

.summary-view:hover .arrow-path {
    animation: drawArrow 0.4s ease-out forwards;
}

.summary-view:hover .arrow-head {
    animation: showArrowHead 0.15s ease-out 0.25s forwards;
}

@keyframes drawArrow {
    to {
        stroke-dashoffset: 0;
    }
}

@keyframes showArrowHead {
    to {
        opacity: 1;
    }
}

/* Hide arrow on mobile */
@media (max-width: 1100px) {
    .cta-arrow {
        display: none;
    }
}


/* ===== Share Intro Section ===== */

.share-intro {
    text-align: center;
    padding: var(--spacing-md) 0;
    margin-bottom: var(--spacing-sm);
}

.share-intro h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.share-intro p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin: 0;
}

.petition-link {
    color: var(--primary-color);
    text-decoration: underline;
}

.petition-link:hover {
    color: var(--secondary-color);
}


/* ===== Share Buttons Section ===== */

.share-section {
    background: transparent;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.share-buttons {
    display: grid;
    grid-template-columns: repeat(4, auto);
    gap: var(--spacing-sm);
    justify-content: center;
}

@media (max-width: 767px) {
    .share-buttons {
        grid-template-columns: repeat(2, 1fr);
    }
}

.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    min-height: 48px;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
}

.share-btn svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* X (Twitter) - Zwart */
.share-btn-x {
    background-color: #000000;
    color: white;
}

.share-btn-x:hover {
    background-color: #333333;
}

/* Bluesky - Blauw */
.share-btn-bluesky {
    background-color: #0085FF;
    color: white;
}

.share-btn-bluesky:hover {
    background-color: #0070DD;
}

/* Threads - Zwart */
.share-btn-threads {
    background-color: #000000;
    color: white;
}

.share-btn-threads:hover {
    background-color: #333333;
}

/* Facebook - Blauw */
.share-btn-facebook {
    background-color: #1877F2;
    color: white;
}

.share-btn-facebook:hover {
    background-color: #166FE5;
}

/* LinkedIn - Blauw */
.share-btn-linkedin {
    background-color: #0A66C2;
    color: white;
}

.share-btn-linkedin:hover {
    background-color: #004182;
}

/* Email - Grijs */
.share-btn-email {
    background-color: #6c757d;
    color: white;
}

.share-btn-email:hover {
    background-color: #5a6268;
}

/* WhatsApp - Groen */
.share-btn-whatsapp {
    background-color: #25D366;
    color: white;
}

.share-btn-whatsapp:hover {
    background-color: #128C7E;
}

/* Copy Link - Primary color */
.share-btn-copy {
    background-color: var(--primary-color);
    color: white;
}

.share-btn-copy:hover {
    background-color: #12284a;
}


/* ===== Toast Notification ===== */

.toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    font-size: 1rem;
    font-weight: 500;
    z-index: 1000;
    opacity: 0;
    transition: all 0.3s ease;
    max-width: 90%;
    text-align: center;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}


/* ===== Input Section ===== */

.input-section {
    background: var(--background);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-lg);
}

.simulation-form {
    display: grid;
    gap: var(--spacing-md);
}

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

.form-row {
    display: flex;
    gap: var(--spacing-md);
}

.form-row .form-group {
    flex: 1;
}

/* Ensure form-row and button span full width in grid layout */
.simulation-form .form-row {
    grid-column: 1 / -1;
}

.simulation-form .btn-primary {
    grid-column: 1 / -1;
}

.form-group label {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-color);
}

.form-group input,
.form-group select {
    padding: 0.75rem;
    font-size: 1rem;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-hint {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-top: var(--spacing-xs);
}

/* Quantity input met unit label errecht */
.quantity-input-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.quantity-input-wrapper input {
    width: 140px;
    flex: 0 0 auto;
}

.unit-label {
    font-size: 1rem;
    color: var(--text-light);
    font-style: italic;
    min-height: 1.2em;
}


/* ===== Buttons ===== */

.btn {
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

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

.btn-primary:hover {
    background-color: #12284a;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: white;
    margin-right: var(--spacing-sm);
}

.btn-secondary:hover {
    background-color: #1e4175;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}


/* ===== Loading & Error States ===== */

.loading-indicator,
.error-message {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    border-radius: var(--radius-md);
    text-align: center;
}

.loading-indicator {
    background: var(--surface);
    color: var(--text-light);
}

.error-message {
    background: #FFF5F5;
    color: var(--error);
    border: 1px solid var(--error);
}

.hidden {
    display: none;
}


/* ===== Results Section ===== */

.results-section {
    background: var(--background);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-lg);
}

.results-section h2 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    font-size: 2rem;
}


/* ===== Results Summary ===== */

.results-summary {
    display: grid;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.summary-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.summary-item.highlight {
    background: linear-gradient(135deg, #EBF4FF 0%, #C3DAFE 100%);
    border-color: var(--primary-color);
    font-weight: 600;
}

.summary-label {
    color: var(--text-light);
    font-size: 0.95rem;
}

.summary-value {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-color);
}


/* ===== Action Buttons ===== */

.action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}


/* ===== Details Section ===== */

.details-section {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 2px solid var(--border);
}

.details-section h3 {
    margin-bottom: var(--spacing-md);
    color: var(--secondary-color);
}

.table-container {
    overflow-x: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.details-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--background);
}

.details-table thead {
    background: var(--secondary-color);
    color: white;
}

.details-table th {
    padding: 0.875rem 0.75rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.875rem;
    white-space: nowrap;
}

.details-table tbody tr {
    border-bottom: 1px solid var(--border);
}

.details-table tbody tr:hover {
    background-color: var(--surface);
}

.details-table td {
    padding: 0.875rem 0.75rem;
    font-size: 0.875rem;
}

.details-table td:first-child {
    font-weight: 600;
}

.details-table .totals-row {
    background: var(--surface);
    border-top: 2px solid var(--primary-color);
}

.details-table .totals-row td {
    padding-top: 1rem;
    padding-bottom: 1rem;
}


/* ===== Disclaimer ===== */

.disclaimer {
    background: #FFF8E1;
    border: 1px solid #FFD54F;
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-top: var(--spacing-lg);
    font-size: 0.9rem;
    color: var(--text-color);
}

.disclaimer ul {
    margin: var(--spacing-sm) 0 0 var(--spacing-md);
    padding: 0;
}

.disclaimer li {
    margin-bottom: var(--spacing-xs);
}

.disclaimer li:last-child {
    margin-bottom: 0;
}


/* ===== Footer ===== */

.footer {
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-lg);
    text-align: center;
}

.footer p {
    margin: 0;
    color: #8B0000;
    font-size: 0.9rem;
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto;
}


/* ===== Responsive Design ===== */

/* Mobile (default) */
@media (max-width: 767px) {
    /* Summary header: stack verticaal */
    .summary-header {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-sm);
        padding: var(--spacing-md);
    }

    .summary-title {
        font-size: 1.1rem;
        text-align: center;
    }

    .summary-header .summary-actions {
        justify-content: center;
    }

    /* Buttons: minimaal 44px touch target */
    .btn-text-header {
        min-height: 44px;
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }

    .summary-text {
        font-size: 1.1rem;
        line-height: 1.9;
    }

    /* Inline controls: 16px font om iOS zoom te voorkomen */
    .inline-input {
        font-size: 16px;
        box-sizing: content-box; /* Padding buiten width zodat tekst past */
    }

    .inline-select {
        font-size: 16px;
    }
}

/* Tablet */
@media (min-width: 768px) {
    .header h1 {
        font-size: 2.5rem;
    }

    .simulation-form {
        grid-template-columns: 1fr 1fr;
    }

    .simulation-form .form-group:last-of-type {
        grid-column: 1 / -1;
    }

    .results-summary {
        grid-template-columns: repeat(2, 1fr);
    }

    .details-table th,
    .details-table td {
        padding: 1rem;
        font-size: 0.9375rem;
    }
}

/* Desktop */
@media (min-width: 1024px) {
    .container {
        padding: var(--spacing-xl);
    }

    .results-summary {
        grid-template-columns: repeat(2, 1fr);
    }

    .details-table {
        font-size: 1rem;
    }
}


/* ===== Print Styles ===== */

@media print {
    body {
        background: white;
    }

    .input-section,
    .action-buttons {
        display: none;
    }

    .results-section,
    .details-section {
        box-shadow: none;
        border: 1px solid var(--border);
    }

    .details-table {
        font-size: 0.75rem;
    }
}