/* ==========================================================================
   BASE.CSS — Verhuislifthuren.eu
   CSS Custom Properties + Basis Styling
   Bron: CLAUDE.md v3 + Brand Guidelines v3
   ========================================================================== */

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Primair */
  --color-primary: #2A8C7A;
  --color-primary-dark: #1E6B5C;
  --color-primary-light: #3AAF9A;
  --color-primary-bg: #E6F5F1;

  /* Secundair */
  --color-secondary: #2B4F7E;
  --color-secondary-dark: #1A3456;
  --color-secondary-light: #6B8DB5;
  --color-secondary-bg: #EDF1F7;

  /* Accenten */
  --color-accent: #E8B4A0;
  --color-accent-bg: #FDF3EF;
  --color-wa: #25D366;
  --color-wa-hover: #1FAD55;
  --color-stars: #F5A623;

  /* Tekst & achtergrond */
  --color-text: #1C1E21;
  --color-text-muted: #4A4F57;
  --color-text-light: #8C919A;
  --color-border: #E2E5EA;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F7F8FA;

  /* Typografie */
  --font-heading: 'Montserrat', 'Poppins', sans-serif;
  --font-body: 'Open Sans', 'Inter', sans-serif;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Effects */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-sticky: 0 -2px 8px rgba(0, 0, 0, 0.1);

  /* Layout */
  --max-width: 1200px;
  --header-height: 72px;
}

/* ---------- Responsive Breakpoints ----------
   Mobile-first:
   - Default: 0 - 767px (mobiel)
   - @media (min-width: 768px): tablet
   - @media (min-width: 1024px): desktop
   - @media (min-width: 1280px): wide
   -------------------------------------------- */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img,
picture,
video,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

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

a:hover {
  color: var(--color-primary-dark);
}

ul,
ol {
  list-style: none;
}

/* ---------- Typografie ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-secondary);
  line-height: 1.25;
}

h1 {
  font-size: 2rem;
}

h2 {
  font-size: 1.5rem;
}

h3 {
  font-size: 1.25rem;
}

h4 {
  font-size: 1.125rem;
}

@media (min-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  h3 {
    font-size: 1.375rem;
  }
}

@media (min-width: 1024px) {
  h1 {
    font-size: 3rem;
  }

  h2 {
    font-size: 2rem;
  }
}

p {
  margin-bottom: var(--space-md);
}

/* ---------- Container ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

@media (min-width: 768px) {
  .container {
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s ease, transform 0.1s ease;
}

.btn:active {
  transform: scale(0.98);
}

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

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

.btn-wa {
  background-color: var(--color-wa);
  color: #fff;
}

.btn-wa:hover {
  background-color: var(--color-wa-hover);
  color: #fff;
}

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}

.btn-outline:hover {
  background-color: var(--color-primary);
  color: #fff;
}

/* ---------- Section Spacing ---------- */
.section {
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-2xl);
}

@media (min-width: 768px) {
  .section {
    padding-top: var(--space-3xl);
    padding-bottom: var(--space-3xl);
  }
}

.section-alt {
  background-color: var(--color-bg-alt);
}

/* ---------- Utility ---------- */
.text-center {
  text-align: center;
}

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

/* ---------- Content Images ---------- */
.content-image {
  margin: var(--space-xl) auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.content-image img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
  background: var(--color-bg-alt);
}
.content-image figcaption {
  padding: var(--space-sm) var(--space-md);
  font-size: 0.875rem;
  color: var(--color-text-muted);
  background: var(--color-bg-alt);
  text-align: center;
}
.image-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  margin: var(--space-xl) 0;
}
.image-grid .content-image {
  margin: 0;
}
.image-grid .content-image img {
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center 30%;
}
@media (min-width: 768px) {
  .image-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .image-grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---------- Mobiel body padding voor sticky CTA ---------- */
@media (max-width: 767px) {
  body {
    padding-bottom: 56px;
  }
}