/* ========== AMPER · gedeelde styles ========== */

:root {
  --mint: #4FE3B0;
  --mint-deep: #2DBE8E;
  --mint-pale: #EBFAF3;
  --black: #1A1A1A;
  --ink: #2A2A2A;
  --paper: #FBFBF9;
  --white: #FFFFFF;
  --muted: #7A7A7A;
  --line: #E5E5E2;
}

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

html { 
  scroll-behavior: smooth;
}

body { 
  font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--paper); 
  color: var(--ink);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }

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

/* ========== NAV ========== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 22px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.nav-logo {
  font-weight: 800;
  font-size: 26px;
  letter-spacing: -1.2px;
  color: var(--black);
  display: flex;
  align-items: baseline;
  gap: 3px;
}
.nav-logo .dot {
  width: 6px; height: 6px;
  background: var(--mint);
  border-radius: 50%;
  align-self: center;
  margin-top: 8px;
}
.nav-links {
  display: flex;
  gap: 36px;
  align-items: center;
}
.nav-links a {
  font-weight: 500;
  font-size: 15px;
  color: var(--ink);
  position: relative;
  padding: 4px 0;
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--mint-deep); }
.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--mint);
}
.nav-cta {
  background: var(--black);
  color: var(--white) !important;
  padding: 10px 18px !important;
  border-radius: 6px;
  font-weight: 600;
  transition: background 0.15s;
}
.nav-cta:hover { background: var(--mint-deep) !important; color: var(--black) !important; }

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: 0;
  font-size: 24px;
  cursor: pointer;
  color: var(--black);
}

/* ========== LAYOUT BLOKKEN ========== */
.section {
  padding: 96px 32px;
}
.section.tight { padding: 60px 32px; }
.section.compact { padding: 40px 32px; }

.container {
  max-width: 1100px;
  margin: 0 auto;
}
.container-narrow {
  max-width: 760px;
  margin: 0 auto;
}

/* Backgrounds */
.bg-mint { background: var(--mint); color: var(--black); }
.bg-black { background: var(--black); color: var(--white); }
.bg-pale { background: var(--mint-pale); }

/* ========== TYPOGRAFIE ========== */
.eyebrow {
  display: inline-block;
  background: var(--mint);
  color: var(--black);
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: 24px;
}
.bg-black .eyebrow {
  background: transparent;
  border: 1px solid var(--mint);
  color: var(--mint);
}

h1, h2, h3, h4 {
  letter-spacing: -1px;
  color: inherit;
  font-weight: 800;
}

.hero-h {
  font-size: clamp(48px, 8vw, 96px);
  line-height: 0.95;
  letter-spacing: -3px;
  font-weight: 800;
  margin-bottom: 24px;
  color: var(--black);
}
.hero-h .underline {
  display: inline-block;
  border-bottom: 6px solid var(--white);
  line-height: 0.9;
  padding-bottom: 4px;
}

h1 {
  font-size: clamp(36px, 6vw, 64px);
  line-height: 1;
  letter-spacing: -2px;
  margin-bottom: 16px;
}

h2 {
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.05;
  margin-bottom: 16px;
}

h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
}

.lede {
  font-size: clamp(18px, 2.4vw, 22px);
  line-height: 1.45;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 32px;
  max-width: 640px;
}
.bg-black .lede { color: #DDDDDD; }
.bg-mint .lede { color: var(--black); }

p { margin-bottom: 16px; }

.highlight {
  background: var(--mint);
  color: var(--black);
  padding: 2px 6px;
  font-weight: 700;
}

/* ========== BUTTONS ========== */
.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  border: 0;
  cursor: pointer;
  transition: transform 0.1s, background 0.15s;
  font-family: inherit;
}
.btn:active { transform: scale(0.98); }
.btn-primary {
  background: var(--black);
  color: var(--white);
}
.btn-primary:hover { background: var(--mint-deep); color: var(--black); }
.btn-mint {
  background: var(--mint);
  color: var(--black);
}
.btn-mint:hover { background: var(--mint-deep); }
.btn-outline {
  background: transparent;
  border: 2px solid var(--black);
  color: var(--black);
}
.btn-outline:hover { background: var(--black); color: var(--white); }
.bg-black .btn-outline {
  border-color: var(--mint);
  color: var(--mint);
}
.bg-black .btn-outline:hover { background: var(--mint); color: var(--black); }

.arrow::after {
  content: ' →';
  display: inline-block;
  transition: transform 0.2s;
}
.arrow:hover::after { transform: translateX(4px); }

/* ========== CARDS ========== */
.card {
  background: var(--paper);
  border: 1.5px solid var(--black);
  padding: 28px;
}
.card-mint {
  background: var(--mint);
  border: 1.5px solid var(--black);
  padding: 28px;
  color: var(--black);
}
.card-dark {
  background: var(--black);
  color: var(--white);
  padding: 28px;
}

/* Facts-card met mintgroene drop-shadow */
.shadow-card {
  position: relative;
}
.shadow-card .shadow-card-shadow {
  position: absolute;
  inset: 0;
  background: var(--mint);
  transform: translate(8px, 8px);
  z-index: 0;
}
.shadow-card .shadow-card-content {
  position: relative;
  background: var(--paper);
  border: 1.5px solid var(--black);
  padding: 28px;
  z-index: 1;
}

/* ========== LIST WITH CHECKS ========== */
.checks {
  list-style: none;
  padding: 0;
}
.checks li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}
.checks li:last-child { border-bottom: 0; }
.checks .icon {
  width: 28px;
  height: 28px;
  background: var(--mint);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: var(--black);
  flex-shrink: 0;
  font-size: 14px;
}

/* ========== FORM ========== */
.form {
  display: grid;
  gap: 18px;
  max-width: 540px;
}
.form-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.form label {
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
}
.form input,
.form textarea {
  font-family: inherit;
  font-size: 16px;
  padding: 14px 16px;
  border: 1.5px solid var(--black);
  background: var(--white);
  color: var(--black);
  border-radius: 0;
  outline: none;
  transition: border-color 0.15s;
}
.form input:focus,
.form textarea:focus {
  border-color: var(--mint-deep);
  box-shadow: 0 0 0 3px rgba(79, 227, 176, 0.2);
}
.form textarea {
  min-height: 140px;
  resize: vertical;
}
.form .honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

/* ========== FOOTER ========== */
.footer {
  background: var(--black);
  color: #BBBBBB;
  padding: 56px 32px 36px;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 36px;
  border-bottom: 1px solid #333;
}
.footer-brand .logo {
  font-weight: 800;
  font-size: 28px;
  letter-spacing: -1.2px;
  color: var(--white);
  display: flex;
  align-items: baseline;
  gap: 3px;
  margin-bottom: 12px;
}
.footer-brand .logo .dot {
  width: 6px; height: 6px;
  background: var(--mint);
  border-radius: 50%;
  align-self: center;
  margin-top: 10px;
}
.footer-brand p {
  font-size: 14px;
  color: #999;
  max-width: 280px;
  margin: 0;
}
.footer-col h4 {
  color: var(--white);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-weight: 700;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  color: #BBBBBB;
  font-size: 14px;
  padding: 4px 0;
  transition: color 0.15s;
}
.footer-col a:hover { color: var(--mint); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 24px;
  font-size: 12px;
  color: #777;
}

/* ========== HERO BLOCKS PER PAGE ========== */
.hero {
  padding: 80px 32px 100px;
  background: var(--mint);
}
.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 64px;
  align-items: center;
}
.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 32px;
  max-width: 480px;
}
.hero-meta-item .label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--black);
  opacity: 0.6;
  margin-bottom: 4px;
}
.hero-meta-item .value {
  font-weight: 700;
  font-size: 14px;
  color: var(--black);
}
.hero-mark {
  background: var(--black);
  padding: 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  min-height: 320px;
}
.hero-mark .big-logo {
  font-weight: 800;
  font-size: 56px;
  color: var(--white);
  letter-spacing: -2.5px;
  display: flex;
  align-items: baseline;
  gap: 3px;
  line-height: 1;
}
.hero-mark .big-logo .dot {
  width: 12px; height: 12px;
  background: var(--mint);
  border-radius: 50%;
  align-self: center;
  margin-top: 18px;
}
.hero-mark .tag {
  color: var(--mint);
  font-size: 13px;
  text-align: center;
  margin-top: 8px;
}
.hero-mark .patent {
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--mint);
  font-weight: 700;
  margin-top: 24px;
  opacity: 0.7;
}

/* ========== UTILS ========== */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.mb-32 { margin-bottom: 32px; }
.mb-48 { margin-bottom: 48px; }
.text-center { text-align: center; }

.divider {
  height: 1px;
  background: var(--line);
  margin: 48px 0;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 880px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--paper);
    flex-direction: column;
    padding: 24px 32px;
    gap: 20px;
    border-bottom: 1px solid var(--line);
  }
  .nav-links.open { display: flex; }
  .nav-cta { display: inline-block !important; align-self: flex-start; }
  
  /* Hero compacter op mobile */
  .hero { padding: 48px 24px 56px; }
  .hero-inner { grid-template-columns: 1fr; gap: 32px; }
  .hero-h { font-size: clamp(40px, 11vw, 64px) !important; letter-spacing: -2px; }
  .hero-mark {
    min-height: auto;
    padding: 28px 24px;
    gap: 8px;
  }
  .hero-mark .big-logo { font-size: 40px; }
  .hero-mark .big-logo .dot { width: 8px; height: 8px; margin-top: 14px; }
  .hero-mark .tag { font-size: 12px; }
  .hero-mark .patent { margin-top: 16px; font-size: 9px; }
  
  /* Hero meta: 1 kolom op mobile (fix 6) */
  .hero-meta { 
    grid-template-columns: 1fr;
    gap: 12px;
    max-width: 100%;
  }
  
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  
  /* Sections krapper op mobile (fix 5) */
  .section { padding: 56px 24px; }
  .section.tight { padding: 40px 24px; }
  .section.compact { padding: 28px 24px; }
  
  /* Footer (fix 9) */
  .footer { padding: 40px 24px 28px; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; padding-bottom: 24px; }
  .footer-bottom { flex-direction: column; gap: 8px; padding-top: 20px; }
  .footer-brand p { max-width: 100%; }
  
  /* Buttons full-width op mobile (fix 8) */
  .btn {
    display: block;
    text-align: center;
    width: 100%;
  }
  /* Tenzij in een nav of inline groep */
  .nav-cta {
    display: inline-block !important;
    width: auto !important;
  }
  /* Voor stacks van knoppen: maak die ook stack */
  .btn + .btn { margin-top: 12px; }
  
  /* Headlines algemeen iets compacter */
  h1 { font-size: clamp(32px, 8vw, 52px); }
  h2 { font-size: clamp(26px, 6vw, 36px); }
  
  /* Lede compacter */
  .lede { font-size: 17px; margin-bottom: 24px; }
}

/* ========== DIAGRAM RESPONSIVE ========== */
.diagram-mobile { display: none !important; }
.diagram-desktop { display: block !important; }

@media (max-width: 880px) {
  .diagram-desktop { display: none !important; }
  .diagram-mobile { display: block !important; }
  
  .diagram-wrap { padding: 24px 16px !important; }
  
  .diagram-row {
    display: flex;
    gap: 12px;
    align-items: center;
    justify-content: center;
    margin-bottom: 4px;
  }
  .diagram-station {
    background: var(--black);
    color: var(--white);
    border-radius: 6px;
    padding: 12px 14px;
    flex: 1;
    text-align: center;
  }
  .diagram-station-title {
    font-weight: 700;
    font-size: 13px;
    color: var(--white);
  }
  .diagram-station-sub {
    font-size: 11px;
    color: var(--mint);
    margin-top: 2px;
  }
  .diagram-arrow {
    color: var(--black);
    font-size: 22px;
    font-weight: 700;
    flex-shrink: 0;
  }
  .diagram-cables {
    display: flex;
    justify-content: space-around;
    font-size: 11px;
    color: var(--muted);
    font-weight: 600;
    padding: 6px 16px;
  }
  .diagram-connector {
    width: 2px;
    height: 20px;
    background-image: linear-gradient(to bottom, var(--mint-deep) 50%, transparent 50%);
    background-size: 2px 8px;
    background-repeat: repeat-y;
    margin: 0 auto;
  }
  .diagram-amper {
    background: var(--mint);
    border: 2px solid var(--black);
    border-radius: 8px;
    padding: 14px;
    text-align: center;
  }
  .diagram-amper-title {
    font-weight: 800;
    font-size: 22px;
    letter-spacing: -1px;
  }
  .diagram-amper-sub {
    font-size: 11px;
    font-weight: 600;
    margin-top: 2px;
  }
  .diagram-amper-patent {
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 1.5px;
    margin-top: 4px;
  }
  .diagram-users {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 8px;
  }
  .diagram-user {
    background: var(--white);
    border: 1.5px solid var(--black);
    border-radius: 4px;
    padding: 8px 4px;
    text-align: center;
  }
  .diagram-user-title {
    font-weight: 700;
    font-size: 11px;
  }
  .diagram-user-sub {
    font-size: 9px;
    color: var(--muted);
    margin-top: 2px;
  }
}

/* Contact: form eerst op mobile */
@media (max-width: 880px) {
  .contact-grid {
    display: flex !important;
    flex-direction: column;
    gap: 48px !important;
  }
  .contact-form { order: 1; }
  .contact-info { order: 2; }
}