:root {
    font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;

    line-height: 1.5;
    color: #18212f;
    background: #f4f6f8;

    --page-width: 1120px;
    --text-color: #18212f;
    --muted-color: #607080;
    --accent-color: #176b5b;
    --accent-dark: #105347;
    --surface-color: #ffffff;
    --border-color: #dce2e7;
    --soft-background: #e7f1ee;
    --shadow:
    0 1px 2px rgba(20, 35, 50, 0.06),
    0 10px 30px rgba(20, 35, 50, 0.08);
}

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
}

body {
    min-height: 100vh;
    margin: 0;
    background:
    linear-gradient(
        180deg,
        #ffffff 0,
        #f4f6f8 28rem
    );
}

a {
    color: var(--accent-color);
}

img {
    display: block;
    max-width: 100%;
}

/* Header */

.site-header {
    border-bottom: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.92);
}

.site-header__inner {
    width: min(
        calc(100% - 3rem),
               var(--page-width)
    );
    margin: 0 auto;
    padding: 1.4rem 0;
}

.logo {
    display: inline-block;
    color: var(--text-color);
    font-size: 1.45rem;
    font-weight: 800;
    letter-spacing: -0.035em;
    text-decoration: none;
}

.logo span {
    color: var(--accent-color);
}

.tagline {
    margin: 0.2rem 0 0;
    color: var(--muted-color);
    font-size: 0.95rem;
}

/* Algemene paginabreedte */

/* Algemene paginabreedte */

main,
.site-footer {
    width: min(
        calc(100% - 3rem),
               var(--page-width)
    );
    margin-inline: auto;
}

/* Footer */

.site-footer {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 2rem;
    margin-top: 5rem;
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
}

.site-footer__left {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.site-footer__left p {
    margin: 0;
}

.footer-tagline {
    color: var(--muted-color);
    font-size: 0.9rem;
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer-nav a {
    color: var(--muted-color);
    font-weight: 600;
    text-decoration: none;
}

.footer-nav a:hover {
    color: var(--accent-color);
}

@media (max-width: 600px) {
    main,
    .site-footer {
        width: min(
            calc(100% - 2rem),
                   var(--page-width)
        );
    }

    .site-footer {
        flex-direction: column;
        align-items: flex-start;
    }

    .footer-nav {
        flex-direction: column;
        gap: 0.6rem;
    }
}


/* Introductie */

.hero {
    max-width: 47rem;
    padding: 5rem 0 3rem;
}

.eyebrow {
    margin: 0 0 0.8rem;
    color: var(--accent-color);
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

h1,
h2,
h3 {
    line-height: 1.15;
    text-wrap: balance;
}

h1 {
    max-width: 13ch;
    margin: 0;
    font-size: clamp(2.5rem, 7vw, 4.8rem);
    letter-spacing: -0.055em;
}

.hero__intro,
.hero > p:last-child {
    max-width: 42rem;
    margin: 1.5rem 0 0;
    color: var(--muted-color);
    font-size: clamp(1.05rem, 2vw, 1.25rem);
}

/* Tegeloverzicht */

.tool-grid {
    display: grid;
    grid-template-columns:
    repeat(auto-fit, minmax(min(100%, 18rem), 1fr));
    gap: 1.5rem;
    padding: 0 0 5rem;
}

.tool-tile {
    display: flex;
    min-height: 28rem;
    flex-direction: column;
    overflow: hidden;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 1.25rem;
    box-shadow: var(--shadow);
    transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    border-color 160ms ease;
}

.tool-tile:hover {
    transform: translateY(-4px);
    border-color: #bdcbc7;
    box-shadow:
    0 2px 4px rgba(20, 35, 50, 0.06),
    0 18px 45px rgba(20, 35, 50, 0.12);
}

.tool-tile__visual {
    display: grid;
    min-height: 11rem;
    place-items: center;
    overflow: hidden;
    color: var(--accent-color);
    background:
    radial-gradient(
        circle at 70% 25%,
        rgba(255, 255, 255, 0.95),
                    transparent 35%
    ),
    var(--soft-background);
    font-size: 4rem;
    font-weight: 900;
}

.tool-tile__visual img {
    width: 100%;
    height: 100%;
    min-height: 11rem;
    object-fit: cover;
}

.tool-tile__content {
    display: flex;
    flex: 1;
    flex-direction: column;
    align-items: flex-start;
    padding: 1.75rem;
}

.tool-tile__label {
    margin: 0 0 0.75rem;
    color: var(--accent-color);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.tool-tile h2,
.tool-tile h3 {
    margin: 0;
    font-size: 1.55rem;
    letter-spacing: -0.025em;
}

.tool-tile__content > p:not(.tool-tile__label) {
    margin: 1rem 0 1.5rem;
    color: var(--muted-color);
}

.tool-tile__link,
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    margin-top: auto;
    padding: 0.8rem 1rem;
    color: #ffffff;
    background: var(--accent-color);
    border-radius: 0.65rem;
    font-weight: 750;
    text-decoration: none;
    transition:
    background 150ms ease,
    transform 150ms ease;
}

.tool-tile__link:hover,
.button:hover {
    background: var(--accent-dark);
}

.tool-tile__link:active,
.button:active {
    transform: translateY(1px);
}

/* Footer */

.site-footer {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 2rem;
    margin-top: 5rem;
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
}

.site-footer__left {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.site-footer__left p {
    margin: 0;
}

.footer-tagline {
    color: var(--muted-color);
    font-size: 0.9rem;
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer-nav a {
    color: var(--muted-color);
    font-weight: 600;
    text-decoration: none;
}

.footer-nav a:hover {
    color: var(--accent-color);
}

@media (max-width: 600px) {
    .site-footer {
        flex-direction: column;
        align-items: flex-start;
    }

    .footer-nav {
        flex-direction: column;
        gap: 0.6rem;
    }
}

/* Alleen zichtbaar voor schermlezers */

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Toetsenbordnavigatie */

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid rgba(23, 107, 91, 0.3);
    outline-offset: 3px;
}
/* Mobiel */

@media (max-width: 600px) {
    .site-header__inner,
    main,
    .site-footer {
        width: min(
            calc(100% - 2rem),
                   var(--page-width)
        );
    }

    .hero {
        padding: 3.5rem 0 2.5rem;
    }

    h1 {
        font-size: clamp(2.4rem, 13vw, 3.5rem);
    }

    .tool-grid {
        gap: 1rem;
        padding-bottom: 3.5rem;
    }

    .tool-tile {
        min-height: auto;
        border-radius: 1rem;
    }

    .tool-tile__content {
        padding: 1.4rem;
    }

    .site-footer {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition: none !important;
    }
}

/* Calculatorpagina */

.tool-page {
    padding-top: 2rem;
    padding-bottom: 5rem;
}

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 3rem;
    color: var(--muted-color);
    font-size: 0.9rem;
}

.breadcrumb a {
    font-weight: 700;
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.tool-intro {
    max-width: 48rem;
    margin-bottom: 3rem;
}

.tool-intro h1 {
    max-width: 15ch;
    font-size: clamp(2.4rem, 6vw, 4.2rem);
}

.tool-intro > p:last-child {
    max-width: 42rem;
    margin: 1.25rem 0 0;
    color: var(--muted-color);
    font-size: 1.1rem;
}

.calculator-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(18rem, 0.75fr);
    gap: 1.5rem;
    align-items: start;
}

.calculator-card,
.result-card,
.explanation-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 1.25rem;
    box-shadow: var(--shadow);
}

.calculator-card {
    padding: clamp(1.4rem, 3vw, 2.25rem);
}

.calculator-card h2,
.explanation-card h2 {
    margin: 0 0 1.5rem;
    font-size: 1.5rem;
    letter-spacing: -0.025em;
}

.calculator-form {
    display: grid;
    gap: 1.4rem;
}

.form-field {
    display: grid;
    gap: 0.5rem;
}

.form-field label {
    font-weight: 750;
}

.form-field input,
.form-field select,
.form-field textarea {
    width: 100%;
    min-height: 3rem;
    padding: 0.7rem 0.85rem;
    color: var(--text-color);
    background: #ffffff;
    border: 1px solid #bcc7cf;
    border-radius: 0.65rem;
    font: inherit;
    font-size: 1rem;
}

.form-field input:hover,
.form-field select:hover,
.form-field textarea:hover {
    border-color: #96a6b1;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
    border-color: var(--accent-color);
    outline: 3px solid rgba(23, 107, 91, 0.16);
}

.field-help {
    margin: 0;
    color: var(--muted-color);
    font-size: 0.9rem;
}

.input-prefix,
.input-suffix {
    display: flex;
    align-items: stretch;
}

.input-prefix > span,
.input-suffix > span {
    display: flex;
    align-items: center;
    padding: 0 0.85rem;
    color: var(--muted-color);
    background: #eef2f4;
    border: 1px solid #bcc7cf;
    font-weight: 700;
    white-space: nowrap;
}

.input-prefix > span {
    border-right: 0;
    border-radius: 0.65rem 0 0 0.65rem;
}

.input-prefix input {
    border-radius: 0 0.65rem 0.65rem 0;
}

.input-suffix input {
    border-radius: 0.65rem 0 0 0.65rem;
}

.input-suffix > span {
    border-left: 0;
    border-radius: 0 0.65rem 0.65rem 0;
}

.form-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding-top: 0.5rem;
}

button.button {
    border: 0;
    cursor: pointer;
    font: inherit;
}

.button--secondary {
    color: var(--text-color);
    background: #e7ecef;
}

.button--secondary:hover {
    background: #dbe2e6;
}

.result-card {
    position: sticky;
    top: 1.5rem;
    padding: clamp(1.4rem, 3vw, 2rem);
    color: #ffffff;
    background: var(--accent-color);
    border-color: transparent;
}

.result-card__label {
    margin: 0 0 0.7rem;
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    opacity: 0.8;
}

.result-card h2 {
    margin: 0;
    font-size: clamp(1.65rem, 4vw, 2.4rem);
    letter-spacing: -0.035em;
}

.result-card p {
    margin: 1rem 0 0;
}

.result-card strong {
    font-size: clamp(2rem, 5vw, 3.4rem);
    line-height: 1;
}

.explanation-card {
    max-width: 52rem;
    margin-top: 1.5rem;
    padding: clamp(1.4rem, 3vw, 2.25rem);
}

.explanation-card p {
    color: var(--muted-color);
}

.explanation-card p:last-child {
    margin-bottom: 0;
}

.formula {
    padding: 1rem 1.1rem;
    color: var(--text-color) !important;
    background: var(--soft-background);
    border-left: 4px solid var(--accent-color);
    border-radius: 0.35rem;
    font-weight: 750;
}

@media (max-width: 800px) {
    .calculator-layout {
        grid-template-columns: 1fr;
    }

    .result-card {
        position: static;
    }
}

@media (max-width: 500px) {
    .tool-page {
        padding-top: 1.25rem;
        padding-bottom: 3.5rem;
    }

    .breadcrumb {
        margin-bottom: 2rem;
    }

    .tool-intro {
        margin-bottom: 2rem;
    }

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

    .form-actions .button {
        width: 100%;
    }

    .input-suffix > span {
        padding-inline: 0.65rem;
    }
}

/* 404-pagina */

.error-page {
    display: grid;
    min-height: 68vh;
    place-items: center;
    padding-top: 4rem;
    padding-bottom: 5rem;
}

.error-card {
    position: relative;
    width: min(100%, 46rem);
    overflow: hidden;
    padding: clamp(2rem, 6vw, 4.5rem);
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 1.5rem;
    box-shadow: var(--shadow);
}

.error-code {
    position: absolute;
    top: -2.5rem;
    right: 1rem;
    margin: 0;
    color: var(--soft-background);
    font-size: clamp(8rem, 24vw, 16rem);
    font-weight: 900;
    line-height: 1;
    letter-spacing: -0.08em;
    pointer-events: none;
    user-select: none;
}

.error-card > *:not(.error-code) {
    position: relative;
}

.error-card h1 {
    max-width: 12ch;
    margin: 0;
    font-size: clamp(2.4rem, 7vw, 4.5rem);
}

.error-intro {
    max-width: 38rem;
    margin: 1.4rem 0 2rem;
    color: var(--muted-color);
    font-size: 1.1rem;
}

.error-note {
    margin: 2rem 0 0;
    color: var(--muted-color);
    font-size: 0.9rem;
    font-style: italic;
}

@media (max-width: 600px) {
    .error-page {
        min-height: auto;
        padding-top: 2rem;
        padding-bottom: 3.5rem;
    }

    .error-card {
        padding: 2rem 1.4rem;
        border-radius: 1rem;
    }

    .error-code {
        top: -1rem;
        right: 0.5rem;
        font-size: 9rem;
    }
}

/* Algemene inhoudspagina */

.content-page {
    padding-top: 2rem;
    padding-bottom: 5rem;
}

.content-card {
    max-width: 48rem;
    padding: clamp(1.5rem, 4vw, 3rem);
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 1.25rem;
    box-shadow: var(--shadow);
}

.content-card h1 {
    max-width: 14ch;
    margin: 0;
    font-size: clamp(2.4rem, 6vw, 4rem);
}

.content-card h2 {
    margin: 2.5rem 0 0.75rem;
    font-size: 1.45rem;
}

.content-card p {
    color: var(--muted-color);
}

.content-page__intro {
    margin: 1.25rem 0 2rem;
    font-size: 1.15rem;
}

@media (max-width: 600px) {
    .content-page {
        padding-top: 1.25rem;
        padding-bottom: 3.5rem;
    }

    .content-card {
        padding: 1.5rem;
        border-radius: 1rem;
    }
}

.site-principle {
    margin: 2rem 0;
    padding: 1rem 1.25rem;
    border-left: 4px solid var(--accent-color);
    background: var(--soft-background);
    font-weight: 700;
    color: var(--text-color);
}

/* Zaagcalculator */

#zaagcalculator-form textarea {
min-height: 16rem;
resize: vertical;
tab-size: 4;
white-space: pre;
font-family:
ui-monospace,
SFMono-Regular,
Consolas,
"Liberation Mono",
monospace;
line-height: 1.55;
}

#zaagcalculator-form textarea::placeholder {
color: #8996a0;
}

.form-errors {
    padding: 1rem 1.1rem;
    color: #7a211b;
    background: #fff0ee;
    border: 1px solid #efc0bb;
    border-left: 4px solid #b23a32;
    border-radius: 0.65rem;
}

.form-errors p {
    margin: 0;
}

.form-errors ul {
    margin: 0.6rem 0 0;
    padding-left: 1.25rem;
}

.form-errors li + li {
    margin-top: 0.35rem;
}

.zaag-summary {
    display: grid;
    gap: 0.85rem;
    margin-top: 1.5rem;
}

.zaag-summary__item {
    display: flex;
    justify-content: space-between;
    gap: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.25);
}

.zaag-summary__item:last-child {
    padding-bottom: 0;
    border-bottom: 0;
}

.zaag-summary__label {
    opacity: 0.82;
}

.zaag-summary__value {
    font-weight: 800;
    text-align: right;
}

.zaagplan {
    display: grid;
    gap: 1rem;
    margin-top: 1.5rem;
}

.zaagplan-item {
    padding: 1rem;
    color: var(--text-color);
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 0.85rem;
}

.zaagplan-item__header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.5rem 1rem;
    margin-bottom: 0.85rem;
}

.zaagplan-item__title {
    margin: 0;
    font-size: 1rem;
    font-weight: 800;
}

.zaagplan-item__rest {
    margin: 0;
    color: var(--muted-color);
    font-size: 0.9rem;
    font-weight: 700;
}

.zaagplan-item__pieces {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.zaagplan-item__piece {
    padding: 0.4rem 0.65rem;
    color: var(--accent-dark);
    background: var(--soft-background);
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 750;
}

.zaagplan-item__details {
    display: grid;
    grid-template-columns: repeat(
        auto-fit,
        minmax(9rem, 1fr)
    );
    gap: 0.6rem 1rem;
    margin-top: 1rem;
    padding-top: 0.85rem;
    border-top: 1px solid var(--border-color);
}

.zaagplan-item__details p {
    margin: 0;
    color: var(--muted-color);
    font-size: 0.9rem;
}

.zaagplan-item__details strong {
    color: var(--text-color);
    font-size: inherit;
}

.zaagbalk {
    display: flex;
    width: 100%;
    min-height: 2.5rem;
    margin-top: 1rem;
    overflow: hidden;
    background: #e9eef1;
    border: 1px solid var(--border-color);
    border-radius: 0.55rem;
}

.zaagbalk__deel {
    display: grid;
    min-width: 2px;
    place-items: center;
    padding: 0.3rem;
    overflow: hidden;
    color: #ffffff;
    background: var(--accent-color);
    border-right: 1px solid rgba(255, 255, 255, 0.45);
    font-size: 0.75rem;
    font-weight: 800;
    white-space: nowrap;
}

.zaagbalk__deel:last-child {
    border-right: 0;
}

.zaagbalk__rest {
    display: grid;
    min-width: 2px;
    place-items: center;
    padding: 0.3rem;
    overflow: hidden;
    color: var(--muted-color);
    background: #e9eef1;
    font-size: 0.75rem;
    font-weight: 750;
    white-space: nowrap;
}

.zaag-warning {
    margin-top: 1rem;
    padding: 0.9rem 1rem;
    color: #6c4b05;
    background: #fff8df;
    border: 1px solid #ead28b;
    border-left: 4px solid #b88912;
    border-radius: 0.65rem;
}

.zaag-warning p {
    margin: 0;
}

@media (max-width: 600px) {
    #zaagcalculator-form textarea {
    min-height: 13rem;
    }

    .zaag-summary__item {
        align-items: flex-start;
        flex-direction: column;
        gap: 0.15rem;
    }

    .zaag-summary__value {
        text-align: left;
    }

    .zaagplan-item__header {
        flex-direction: column;
    }

    .zaagplan-item__details {
        grid-template-columns: 1fr;
    }

    .zaagbalk {
        min-height: 2rem;
    }

    .zaagbalk__deel,
    .zaagbalk__rest {
        font-size: 0;
    }
}

/* Zaagcalculator: vaste samenvatting en breed zaagplan */

#zaagcalculator-form {
min-width: 0;
}

.calculator-layout:has(#zaagcalculator-form) {
    grid-template-columns:
    minmax(0, 1fr)
    minmax(18rem, 22rem);
}

#resultaat {
min-width: 0;
overflow-wrap: anywhere;
}

.zaagplan-card {
    width: 100%;
    min-width: 0;
    margin-top: 1.5rem;
    padding: clamp(1.4rem, 3vw, 2.25rem);
    overflow: hidden;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 1.25rem;
    box-shadow: var(--shadow);
}

.zaagplan-card[hidden] {
    display: none;
}

.zaagplan-card__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 1rem 2rem;
    margin-bottom: 1.5rem;
}

.zaagplan-card__header .eyebrow {
    margin-bottom: 0.5rem;
}

.zaagplan-card__header h2 {
    margin: 0;
    font-size: clamp(1.5rem, 3vw, 2rem);
    letter-spacing: -0.025em;
}

.zaagplan-card__method {
    margin: 0;
    color: var(--muted-color);
    font-size: 0.9rem;
    font-weight: 700;
    text-align: right;
}

#zaagplan-inhoud {
min-width: 0;
max-width: 100%;
}

.zaagplan {
    min-width: 0;
}

.zaagplan-item {
    min-width: 0;
    max-width: 100%;
    overflow: hidden;
}

.zaagplan-item__pieces {
    max-width: 100%;
}

.zaagplan-item__piece {
    max-width: 100%;
    overflow-wrap: anywhere;
}

.zaagbalk {
    max-width: 100%;
}

@media (max-width: 800px) {
    .calculator-layout:has(#zaagcalculator-form) {
        grid-template-columns: 1fr;
    }

    .zaagplan-card__header {
        align-items: flex-start;
        flex-direction: column;
    }

    .zaagplan-card__method {
        text-align: left;
    }
}

@media (max-width: 500px) {
    .zaagplan-card {
        padding: 1.4rem;
        border-radius: 1rem;
    }
}

.result-card__value {
    margin: 0;
    font-size: clamp(3rem, 7vw, 4.5rem);
    line-height: 0.95;
    letter-spacing: -0.055em;
}

.result-card__unit {
    margin: 0.4rem 0 0;
    font-size: 1.05rem;
    font-weight: 750;
    opacity: 0.88;
    overflow-wrap: anywhere;
}