/* ==========================================================================
   KSM Keur Security and More - Stylesheet
   Huisstijl: zwart, wit, grijs. Zachte, rustige lay-out.
   ========================================================================== */

:root {
  --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --color-black: #000000;
  --color-white: #ffffff;
  --color-gray-light: #f6f6f6;
  --color-gray: #dddddd;
  --color-gray-dark: #666666;
  --max-width: 1140px;
  --radius: 22px;
  --radius-small: 14px;
  --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 16px 36px rgba(0, 0, 0, 0.13);
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  color: var(--color-black);
  background-color: var(--color-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
}

a {
  color: var(--color-black);
  text-decoration: none;
  transition: var(--transition);
}

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

h1, h2, h3, h4 {
  font-family: var(--font-main);
  color: var(--color-black);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.3px;
  margin-bottom: 1rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 1.85rem; margin-bottom: 1.4rem; }
h3 { font-size: 1.2rem; }
p { margin-bottom: 1.3rem; color: var(--color-black); }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.75rem;
}

.section {
  padding: 4.5rem 0;
}

.section-light {
  background-color: var(--color-gray-light);
  border-radius: var(--radius);
  margin: 0 auto;
  max-width: calc(var(--max-width) + 3.5rem);
}

/* Header & navigatie */
header {
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--color-gray);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.1rem 1.75rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.logo-text {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-black);
  letter-spacing: -0.3px;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 0.4rem;
  align-items: center;
  flex-wrap: wrap;
}

.nav-menu a {
  font-weight: 500;
  color: var(--color-gray-dark);
  font-size: 0.93rem;
  padding: 0.5rem 0.95rem;
  border-radius: 999px;
}

.nav-menu a:hover {
  background-color: var(--color-gray-light);
  color: var(--color-black);
}

.nav-menu a.active {
  background-color: var(--color-black);
  color: var(--color-white);
}

/* Pagina-intro / hero */
.page-title {
  padding: 4rem 0 3rem 0;
  text-align: center;
}

.page-title h1 {
  max-width: 780px;
  margin: 0 auto 1rem auto;
}

.logo-image {
  max-width: 150px;
  margin: 1.75rem auto 0 auto;
  border-radius: var(--radius-small);
}

.logo-image.on-dark {
  background-color: var(--color-black);
  padding: 1.1rem 1.4rem;
}

/* Knoppen */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
}

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

.btn-primary:hover {
  background-color: var(--color-gray-dark);
}

.btn-outline {
  border: 1.5px solid var(--color-black);
  color: var(--color-black);
}

.btn-outline:hover {
  background-color: var(--color-black);
  color: var(--color-white);
}

.button-row {
  display: flex;
  gap: 0.85rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

/* Grids & afbeeldingen */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
  align-items: center;
  margin: 2rem 0;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.card {
  background: var(--color-white);
  border-radius: var(--radius-small);
  padding: 2rem;
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.card h3 {
  margin-bottom: 0.6rem;
}

.card p {
  color: var(--color-gray-dark);
  margin-bottom: 0;
}

/* Quote / expertise blok */
.quote-block {
  background-color: var(--color-gray-light);
  border-radius: var(--radius);
  padding: 2.25rem 2.5rem;
  margin: 2rem 0;
}

.quote-block h3 {
  margin-top: 1.5rem;
}

.quote-block h3:first-child {
  margin-top: 0;
}

/* Foto's */
figure {
  margin: 2rem 0;
}

figure img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

figure.photo-round img {
  border-radius: var(--radius);
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

figure.photo-wide img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
  width: 100%;
}

figure.photo-badge {
  max-width: 220px;
  margin: 2rem auto;
}

figure.photo-badge img {
  box-shadow: none;
  border: 1px solid var(--color-gray);
}

/* Lijsten */
ul.plain-list {
  list-style: none;
  margin: 1.5rem 0;
}

ul.plain-list li {
  padding: 0.6rem 0 0.6rem 1.6rem;
  border-bottom: 1px solid var(--color-gray-light);
  position: relative;
}

ul.plain-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.05rem;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--color-black);
}

/* Footer */
footer {
  background-color: var(--color-black);
  color: var(--color-white);
  padding: 4rem 0 2rem 0;
  margin-top: 4.5rem;
  border-radius: var(--radius) var(--radius) 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2.25rem;
  margin-bottom: 2.5rem;
}

.footer-col h4 {
  color: var(--color-white);
  margin-bottom: 1.1rem;
  font-size: 1rem;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 0.65rem;
}

.footer-col p {
  color: var(--color-gray);
  margin-bottom: 0.5rem;
}

.footer-col a {
  color: var(--color-gray);
}

.footer-col a:hover {
  color: var(--color-white);
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-gray);
}

/* Responsief */
@media (max-width: 900px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  .header-container {
    flex-direction: column;
    gap: 0.75rem;
  }
  .nav-menu {
    justify-content: center;
    gap: 0.2rem;
  }
  .section {
    padding: 3rem 0;
  }
}