:root {
  --color-primary: #0097e0;
  --color-primary-light: #54c3f1;
  --color-white: #ffffff;
  --color-black: #000000;
  --color-dark-gray: #2c2c2c;
  --color-gray: #eceaea;
  --color-accent: #f07300;
  --color-dark-button: #444444;
  --color-light-gray: #fafafaf2;
  --color-accent-gray: #484e54;
  --color-accent-blue-gray: #728992;
  --transition-speed: 0.3s;
  --border-radius: 8px;
  --font-sans: "Inter", "Segoe UI", "Roboto", sans-serif;
}
/* _____________________________________________________________________ */

/* CSS Reset */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Standaard lettertype en lijnhoogte */
html {
    line-height: 1.5;
    -webkit-text-size-adjust: 100%; /* voorkom iOS zoom */
}

/* Basis voor body */
body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: #fff;
    color: #000;
}

/* Links en lijsten */
a {
    text-decoration: none;
    color: inherit;
}

ul,
ol {
    list-style: none;
}

/* Afbeeldingen en media */
img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
}

/* Formulierelementen */
input,
button,
textarea,
select {
    font: inherit;
    margin: 0;
}

/* Overige standaard aanpassingen */
button {
    cursor: pointer;
    background: none;
    border: none;
}

/* Basisinstellingen */
html {
  font-size: 14px; /* Standaard 1rem = 14px */
  scroll-behavior: smooth;
}

/* Dynamische basis lettergrootte die meeschalend werkt */
body {
  line-height: 1.6;
  font-size: clamp(0.8125rem, 1.9vw, 1.0625rem);
}

/* Koppen met dynamische groottes */
h1 {
  font-size: clamp(1.875rem, 4.75vw, 2.875rem);
  font-weight: 700;
}
h2 {
  font-size: clamp(1.625rem, 3.75vw, 2.375rem);
  font-weight: 700;
}
h3 {
  font-size: clamp(1.375rem, 3.25vw, 1.875rem);
  font-weight: 600;
}
h4 {
  font-size: clamp(1.1875rem, 2.75vw, 1.625rem);
  font-weight: 600;
}
h5 {
  font-size: clamp(1.0625rem, 2.25vw, 1.4375rem);
  font-weight: 500;
}
h6 {
  font-size: clamp(0.9375rem, 1.9vw, 1.1875rem);
  font-weight: 500;
}

/* Paragrafen */
p {
  font-size: clamp(0.9375rem, 1.9vw, 1.0025rem);
}
.p-small {
  font-size: clamp(0.8125rem, 1.4vw, 0.9375rem);
}
.p-x-small {
  font-size: clamp(0.6875rem, 1.1vw, 0.8125rem);
}
.p-xx-small {
  font-size: clamp(0.5625rem, 0.95vw, 0.6875rem);
}

/* Lijsten */
li {
  font-size: clamp(0.9375rem, 1.9vw, 1.0625rem);
}

/* Links */
a {
  font-size: inherit;
}

/* Knoppen */
button {
  font-size: clamp(0.9375rem, 1.9vw, 1.0625rem);
}

/* Responsive typografie */

/* Voor zeer kleine schermen (< 400px) */
@media (max-width: 400px) {
  html {
    font-size: 12.5px;
  }
}

/* Voor tablets en middelgrote schermen (481px - 768px) */
@media (min-width: 481px) and (max-width: 768px) {
  html {
    font-size: 13.5px;
  }
}

/* Voor grote schermen (> 1200px) */
@media (min-width: 1200px) {
  html {
    font-size: 16.5px;
  }
}
/* _____________________________________________________________________ */

/* Base styles */
body {
  font-family: var(--font-sans);
  margin: 0;
  padding: 0;
  transition: background-color var(--transition-speed), color var(--transition-speed);
}

footer {
  height: 300px;
}

header.site-header,
footer.site-footer {
  padding: 1rem 2rem;
  transition: background-color var(--transition-speed), color var(--transition-speed);
}

#welcome-title {
  text-align: center;
}

header.site-header {
  display: flex;
  justify-content: space-between;
  flex-direction: row;
  align-items: center;
}

main.container {
  margin: 2rem auto;
  width: 100%;
  max-inline-size: 1040px;
}

main.container > section.banner {
  max-inline-size: 1200px;
  margin: 0 auto;
  padding-bottom: 4rem;
}

main.container > .section-container {
  max-inline-size: 1800px;
  margin: 0 auto;
  padding: 15px;
}

main.container > #detail-container {
  max-inline-size: 1600px;
  border-top: 1px solid var(--color-gray);
  margin: 0 auto;
  margin-block: 6rem;
  padding: 20px;
  background-color: var(--color-light-gray);
}

main.container > #detail-container > h3 {
  margin-top: 0px;
  color: var(--color-primary);
}

main.container > #detail-container img {
  max-width: 100%;
  display: inline-block;
  margin-top: 0.5rem;
}

#pdf-download-btn {
  font-size: small;
  padding: 10px;
  height: 40px;
}

input {
  margin-block: 10px;
}

/* Globale form styling */
select,
input,
textarea {
  font-family: var(--font-sans);
  font-size: 1rem;
  padding: 0.6rem 1rem;
  border-radius: var(--border-radius);
  border: 1px solid var(--color-gray);
  outline: none;
  transition: background-color var(--transition-speed), border-color var(--transition-speed), color var(--transition-speed), box-shadow var(--transition-speed);
  width: 100%;
  box-sizing: border-box;
}

select {
  max-width: 450px;
}
/* _____________________________________________________________________ */

/* Light mode inputs */
body.light-mode select,
body.light-mode input,
body.light-mode textarea {
  background-color: var(--color-white);
  color: var(--color-dark-gray);
  border: 1px solid var(--color-gray);
}

body.light-mode select:focus,
body.light-mode input:focus,
body.light-mode textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 151, 224, 0.2);
}

/* Dark mode inputs */
body.dark-mode select,
body.dark-mode input,
body.dark-mode textarea {
  background-color: var(--color-dark-gray);
  color: var(--color-white);
  border: 1px solid #555555;
}

body.dark-mode select:focus,
body.dark-mode input:focus,
body.dark-mode textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgb(146 199 228 / 12%);
}

body.dark-mode #detail-container {
  border-top: 1px solid var(--color-dark-button);
  background-color: #383838;
}

body.dark-mode #detail-container > h3 {
  color: var(--color-primary-light);
}

body.dark-mode .detail-explanation {
  border-top: 1px solid var(--color-dark-button);
}

/* Specifiek voor light-mode */
body.light-mode button.active {
  background-color: var(--color-primary-light);
  color: var(--color-white);
}

/* Specifiek voor dark-mode */
body.dark-mode button.active {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* Styling voor select dropdown opties */
select option {
  padding: 0.5rem 1rem;
}

/* Hover en active states voor select */
select:hover {
  cursor: pointer;
}

/* Buttons voor form en algemene layout consistentie */
button,
select {
  transition: all var(--transition-speed);
}

/* Light mode */
body.light-mode {
  background-color: var(--color-white);
  color: var(--color-dark-gray);
}

body.light-mode header.site-header {
  background-color: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

body.light-mode footer.site-footer {
  background-color: var(--color-accent-gray);
  color: var(--color-gray);
}

/* Dark mode */
body.dark-mode {
  background-color: var(--color-dark-gray);
  color: var(--color-white);
}

body.dark-mode header.site-header {
  background-color: #1a1a1a;
  color: var(--color-white);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4);
}

body.dark-mode footer.site-footer {
  background-color: #333333;
  color: var(--color-white);
}

/* Buttons */
button {
  border: none;
  padding: 0.6rem 1.2rem;
  cursor: pointer;
  border-radius: var(--border-radius);
  font-weight: 500;
  transition: background-color var(--transition-speed), transform var(--transition-speed);
  height: 50px;
}

/* Button in light mode */
body.light-mode button {
  background-color: var(--color-gray);
  color: var(--color-black);
}

body.light-mode button:hover {
  background-color: var(--color-gray);
  color: var(--color-black);
}

/* Button in dark mode */
body.dark-mode button {
  background-color: var(--color-dark-button);
  color: var(--color-white);
}

body.dark-mode button:hover {
  background-color: var(--color-primary);
}
/* _____________________________________________________________________ */

/* Links reset & styling */
a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-speed);
}

body.light-mode a {
  color: var(--color-primary);
}

body.light-mode a:hover,
body.light-mode a:focus {
  color: var(--color-accent);
}

body.dark-mode a {
  color: var(--color-primary-light);
}

body.dark-mode a:hover,
body.dark-mode a:focus {
  color: var(--color-primary);
}
/* === Containers === */
#dropdown-container,
#sub-dropdown-container,
#results-container {
  width: 100%;
}

.sub-dropdown-container {
  margin-top: 1rem;
}

.results-container {
  margin-top: 1rem;
}

.detail-container {
  margin-top: 6rem;
}

/* === Actieve knoppen === */
.btn-active {
  background-color: #0097e0 !important;
  color: white !important;
}

/* === Select dropdowns === */
.select-full {
  width: 100%;
}

/* === Detailweergave === */
.detail-title {
  display: inline-block;
  margin-inline-end: 0.5rem;
}

.detail-description {
  display: inline-block;
  font-size: large;
}

.detail-explanation {
  margin-top: 1rem;
  white-space: pre-wrap;
  padding: 15px 10px;
  border-top: 1px solid var(--color-gray);
}

/* === Verborgen / zichtbare elementen === */
.hidden {
  display: none !important;
}

.visible {
  display: block !important;
}

/* === add-item */
#category-fieldset {
  max-width: 350px;
  display: flex;
  flex-direction: column;
  margin-bottom: 20px;
}

#category-fieldset label {
  width: 250px;
}

#category-fieldset label input {
  width: 30px;
}