:root {
  --bg: #fafaf9;
  --surface: #ffffff;
  --text: #17181a;
  --text-muted: #6b6f76;
  --border: #e7e5e4;
  --accent: #e8823c;
  --accent-text: #ffffff;
  --radius: 14px;
  --shadow: 0 20px 40px -20px rgba(23, 24, 26, 0.25);
  --usb-zwart: #1c1c1e;
  --usb-wit: #f5f5f7;
  --usb-navy: #243b55;
  --usb-rood: #c0392b;
  --usb-mint: #4fd1a5;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3 {
  margin: 0;
  font-weight: 650;
  letter-spacing: -0.02em;
}

p {
  margin: 0;
  color: var(--text-muted);
}

/* --- Nav --- */

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1120px;
  margin: 0 auto;
  padding: 28px 24px;
}

.nav__logo {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

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

.nav__links {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 0.95rem;
}

.nav__links a:first-child:hover {
  color: var(--accent);
}

/* --- Buttons --- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn--primary {
  background: var(--accent);
  color: var(--accent-text);
  box-shadow: 0 12px 24px -10px rgba(232, 130, 60, 0.55);
}

.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 28px -10px rgba(232, 130, 60, 0.65);
}

.btn--small {
  padding: 9px 18px;
  font-size: 0.85rem;
}

.btn--block {
  width: 100%;
}

/* --- Hero --- */

.hero {
  max-width: 1120px;
  margin: 0 auto;
  padding: 48px 24px 96px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 14px;
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  line-height: 1.05;
  margin-bottom: 20px;
}

.hero__sub {
  font-size: 1.05rem;
  max-width: 42ch;
  margin-bottom: 32px;
}

.hero__visual {
  display: flex;
  justify-content: center;
}

/* --- USB visual --- */

.usb {
  display: flex;
  flex-direction: column;
  align-items: center;
  --usb-color: var(--usb-zwart);
}

.usb--zwart { --usb-color: var(--usb-zwart); }
.usb--wit   { --usb-color: var(--usb-wit); }
.usb--navy  { --usb-color: var(--usb-navy); }
.usb--rood  { --usb-color: var(--usb-rood); }
.usb--mint  { --usb-color: var(--usb-mint); }

.usb__body {
  width: 150px;
  height: 230px;
  border-radius: 22px;
  background: var(--usb-color);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 26px;
  box-shadow: var(--shadow);
  position: relative;
  transition: background 0.25s ease;
}

.usb__label {
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  max-width: 110px;
  text-align: center;
  word-break: break-word;
  transition: color 0.25s ease;
}

.usb--wit .usb__label {
  color: #1c1c1e;
}

.usb__connector {
  width: 54px;
  height: 34px;
  background: linear-gradient(180deg, #d4d4d4, #9a9a9a);
  border-radius: 6px;
  margin-top: -6px;
  box-shadow: inset 0 -2px 4px rgba(0, 0, 0, 0.2);
}

/* --- About --- */

.about-hero {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 24px 64px;
  text-align: center;
}

.about-hero h1 {
  font-size: clamp(2rem, 4.5vw, 2.8rem);
  line-height: 1.1;
  margin-bottom: 20px;
}

.about-hero .hero__sub {
  margin: 0 auto;
}

.about-stats {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px 96px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.about-stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.about-stat strong {
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--accent);
}

.about-stat span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* --- Features --- */

.features {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px 96px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

.feature h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

/* --- Pricing --- */

.pricing {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px 96px;
  text-align: center;
}

.pricing__title {
  font-size: 2rem;
  max-width: 20ch;
  margin: 0 auto 40px;
}

.pricing__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: left;
}

.price-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.price-card--popular {
  border-color: var(--accent);
  box-shadow: 0 16px 32px -18px rgba(232, 130, 60, 0.5);
}

.price-card__badge {
  position: absolute;
  top: -12px;
  right: 20px;
  background: var(--accent);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 12px;
  border-radius: 999px;
}

.price-card h3 {
  font-size: 1.05rem;
}

.price-card__price {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text);
}

.price-card p:not(.price-card__price) {
  font-size: 0.88rem;
}

.pricing__note {
  margin-top: 28px;
  font-size: 0.88rem;
}

/* --- CTA banner --- */

.cta-banner {
  max-width: 1120px;
  margin: 0 auto 96px;
  padding: 56px 24px;
  background: var(--text);
  color: #fff;
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.cta-banner h2 {
  color: #fff;
  font-size: 1.6rem;
  max-width: 26ch;
}

/* --- Configurator --- */

.configurator {
  max-width: 1120px;
  margin: 0 auto;
  padding: 48px 24px 96px;
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 48px;
  align-items: start;
}

.configurator__preview {
  position: sticky;
  top: 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px 24px;
}

.configurator__hint {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.configurator__price {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 22px;
  border-radius: 999px;
  background: var(--bg);
  border: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.configurator__price strong {
  font-size: 1.3rem;
  color: var(--text);
}

.configurator__form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.configurator__form h1 {
  font-size: 1.6rem;
  margin-bottom: 4px;
}

.form-error {
  background: #fdecea;
  color: #c0392b;
  border: 1px solid #f3c4bd;
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 0.88rem;
  font-weight: 500;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
}

.field-row {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 16px;
}

.field--narrow {
  min-width: 0;
}

.field legend {
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0;
}

.field input[type="text"],
.field input[type="email"],
.field input[type="number"],
.field input[type="file"],
.field select {
  font: inherit;
  font-weight: 400;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
}

.field input:focus,
.field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(232, 130, 60, 0.18);
}

.swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.swatch {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
}

.swatch input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.swatch__dot {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: inline-block;
  border: 2px solid transparent;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.swatch input:checked + .swatch__dot {
  border-color: var(--accent);
  transform: scale(1.1);
}

.swatch__dot--zwart { background: var(--usb-zwart); }
.swatch__dot--wit   { background: var(--usb-wit); border: 1px solid var(--border); }
.swatch__dot--navy  { background: var(--usb-navy); }
.swatch__dot--rood  { background: var(--usb-rood); }
.swatch__dot--mint  { background: var(--usb-mint); }

/* --- Thanks / 404 --- */

.thanks, .notfound {
  max-width: 560px;
  margin: 0 auto;
  padding: 96px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}

.thanks__icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 8px;
}

.notfound h1 {
  font-size: 4rem;
  color: var(--accent);
}

.order-summary {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 26px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: left;
}

.order-summary__row {
  display: flex;
  justify-content: space-between;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.order-summary__row--total {
  border-top: 1px solid var(--border);
  padding-top: 12px;
  margin-top: 4px;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
}

/* --- Footer --- */

.footer {
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px;
  text-align: center;
  font-size: 0.82rem;
}

/* --- Responsive --- */

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__sub {
    margin-left: auto;
    margin-right: auto;
  }

  .features {
    grid-template-columns: 1fr;
  }

  .pricing__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .configurator {
    grid-template-columns: 1fr;
  }

  .configurator__preview {
    position: static;
  }
}