/* ============================================================
   Rolluikconfigurator — LN Innovations
   Huisstijl: donkerblauw, blauwe accenten, Inter.
   ============================================================ */

:root {
  --ln-ink: #f5f8fc;
  --ln-ink-soft: #a9b4c4;
  --ln-ink-faint: #77849a;
  --ln-night: #05070b;
  --ln-night-2: #09111f;
  --ln-panel: rgba(255, 255, 255, 0.055);
  --ln-panel-strong: rgba(255, 255, 255, 0.085);
  --ln-line: rgba(255, 255, 255, 0.13);
  --ln-blue: #1677ff;
  --ln-blue-light: #55b8ff;
  --ln-cyan: #72e4ff;
  --ln-success: #65d69e;
  --ln-warn: #ee9441;
  --ln-gradient: linear-gradient(135deg, #0b3d91 0%, #1677ff 48%, #72e4ff 100%);
  --ln-shadow: 0 28px 90px rgba(0, 0, 0, 0.38);
  --ln-radius-sm: 12px;
  --ln-radius: 22px;
  --ln-radius-lg: 34px;
  --ln-container: min(1320px, calc(100vw - clamp(24px, 6vw, 96px)));
  --ln-ease: cubic-bezier(0.2, 0.8, 0.2, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ln-night);
  color: var(--ln-ink);
  font-family: Inter, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--ln-cyan); text-underline-offset: 0.2em; }
a:hover { color: var(--ln-blue-light); }

h1, h2, h3 { line-height: 1.15; margin: 0 0 0.6em; letter-spacing: -0.01em; }

.container {
  width: var(--ln-container);
  margin-inline: auto;
}
.container--narrow { max-width: 880px; }

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ln-blue);
  color: #fff;
  padding: 10px 16px;
  z-index: 100;
  border-radius: 0 0 10px 0;
}
.skip-link:focus { left: 0; }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(5, 7, 11, 0.82);
  border-bottom: 1px solid var(--ln-line);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 70px;
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.site-header__brand img { width: 150px; }

.site-header__product {
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ln-ink-soft);
  border-left: 1px solid var(--ln-line);
  padding-left: 14px;
}

.site-header__help {
  margin: 0;
  font-size: 0.92rem;
  color: var(--ln-ink-soft);
}
.site-header__help a { font-weight: 600; text-decoration: none; }

/* ---------- Hero ---------- */

.hero {
  position: relative;
  padding: clamp(56px, 8vw, 110px) 0 clamp(40px, 5vw, 72px);
  background:
    radial-gradient(1100px 520px at 78% -10%, rgba(22, 119, 255, 0.22), transparent 60%),
    radial-gradient(700px 420px at 8% 110%, rgba(114, 228, 255, 0.1), transparent 60%),
    var(--ln-night);
}

.hero__kicker {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ln-cyan);
  margin: 0 0 18px;
}

.hero__title {
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 800;
  margin-bottom: 22px;
}

.hero__lead {
  max-width: 56ch;
  color: var(--ln-ink-soft);
  font-size: 1.08rem;
  margin: 0 0 30px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 28px;
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  padding: 0;
  margin: 0;
  list-style: none;
  color: var(--ln-ink-soft);
  font-size: 0.92rem;
}
.hero__badges li { position: relative; padding-left: 22px; }
.hero__badges li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.55em;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--ln-cyan);
}

/* ---------- Knoppen ---------- */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.18s var(--ln-ease), box-shadow 0.18s var(--ln-ease), border-color 0.18s;
}

.button--primary {
  background: var(--ln-gradient);
  color: #fff;
  box-shadow: 0 14px 34px rgba(22, 119, 255, 0.32);
}
.button--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 48px rgba(22, 119, 255, 0.4);
  color: #fff;
}

.button--ghost {
  border-color: var(--ln-line);
  color: var(--ln-ink);
  background: var(--ln-panel);
}
.button--ghost:hover { border-color: rgba(114, 228, 255, 0.5); color: var(--ln-cyan); }

.button--mini {
  padding: 7px 16px;
  font-size: 0.85rem;
  border-color: var(--ln-line);
  background: transparent;
  color: var(--ln-ink-soft);
}
.button--mini:hover { color: var(--ln-cyan); border-color: rgba(114, 228, 255, 0.5); }

.button[disabled] { opacity: 0.45; cursor: not-allowed; }

/* ---------- Configurator ---------- */

.configurator {
  padding: clamp(28px, 4vw, 56px) 0 clamp(48px, 6vw, 88px);
}

.stappen {
  border: 1px solid var(--ln-line);
  border-radius: var(--ln-radius);
  background: var(--ln-panel);
  padding: 6px;
  margin-bottom: 26px;
  overflow-x: auto;
}

.stappen ol {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  min-width: 640px;
}

.stappen li { flex: 1; }

.stappen button {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: transparent;
  border: 0;
  border-radius: 16px;
  color: var(--ln-ink-soft);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  transition: background 0.18s, color 0.18s;
}
.stappen button:hover { background: var(--ln-panel-strong); color: var(--ln-ink); }

.stappen__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px; height: 30px;
  border-radius: 50%;
  border: 1px solid var(--ln-line);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.85rem;
  flex: none;
}

.stappen li.is-actief button {
  background: var(--ln-panel-strong);
  color: var(--ln-ink);
}
.stappen li.is-actief .stappen__num {
  background: var(--ln-gradient);
  border-color: transparent;
  color: #fff;
}
.stappen li.is-gedaan .stappen__num {
  border-color: rgba(114, 228, 255, 0.6);
  color: var(--ln-cyan);
}

.config-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 400px;
  gap: 26px;
  align-items: start;
}

.stap-panel {
  border: 1px solid var(--ln-line);
  border-radius: var(--ln-radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.02));
  padding: clamp(22px, 3vw, 38px);
}

.stap__teller {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ln-cyan);
  margin: 0 0 10px;
}

.stap h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); }

.stap__intro { color: var(--ln-ink-soft); max-width: 60ch; }

.stap__notitie {
  color: var(--ln-ink-faint);
  font-size: 0.88rem;
  border-left: 2px solid var(--ln-line);
  padding-left: 14px;
}

.stap__hint { color: var(--ln-ink-faint); font-size: 0.9rem; margin: 26px 0 0; }

.stap-nav {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin-top: 18px;
}

/* ---------- Keuzekaarten ---------- */

.keuzes {
  border: 0;
  padding: 0;
  margin: 0 0 22px;
  display: grid;
  gap: 14px;
}

.keuzes legend {
  font-weight: 700;
  padding: 0;
  margin-bottom: 12px;
  font-size: 1.05rem;
}

.keuze {
  position: relative;
  display: block;
  border: 1px solid var(--ln-line);
  border-radius: 18px;
  background: var(--ln-panel);
  padding: 18px 20px;
  cursor: pointer;
  transition: border-color 0.18s, background 0.18s, transform 0.18s var(--ln-ease);
}
.keuze:hover { border-color: rgba(114, 228, 255, 0.45); transform: translateY(-1px); }

.keuze input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.keuze__kop {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}

.keuze__naam { font-weight: 700; }
.keuze__sub { color: var(--ln-ink-soft); font-size: 0.92rem; }
.keuze__tekst { color: var(--ln-ink-soft); margin: 8px 0 0; font-size: 0.95rem; }
.keuze__prijs {
  margin-left: auto;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.85rem;
  color: var(--ln-cyan);
  white-space: nowrap;
}

.keuze__tag {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ln-cyan);
  border: 1px solid rgba(114, 228, 255, 0.4);
  border-radius: 999px;
  padding: 2px 10px;
}

.keuze:has(input:checked) {
  border-color: var(--ln-blue);
  background: rgba(22, 119, 255, 0.12);
  box-shadow: 0 0 0 1px var(--ln-blue) inset;
}
.keuze:has(input:focus-visible) {
  outline: 2px solid var(--ln-cyan);
  outline-offset: 2px;
}

.keuze--uitgeschakeld {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Kleurstalen */

.keuzes--kleuren .keuze {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px 12px 12px;
  margin: 0 10px 10px 0;
}

.staal {
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.35);
  flex: none;
  position: relative;
}

.keuze:has(input:checked) .staal::after {
  content: "";
  position: absolute;
  inset: 11px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.35);
}

.keuzes--compact {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.keuzes--extras {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.keuze--checkbox {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.keuze--checkbox .vinkje {
  width: 22px; height: 22px;
  border-radius: 7px;
  border: 1px solid var(--ln-line);
  flex: none;
  margin-top: 2px;
  position: relative;
}
.keuze--checkbox:has(input:checked) .vinkje {
  background: var(--ln-gradient);
  border-color: transparent;
}
.keuze--checkbox:has(input:checked) .vinkje::after {
  content: "";
  position: absolute;
  left: 7px; top: 3px;
  width: 5px; height: 10px;
  border: solid #fff;
  border-width: 0 2.5px 2.5px 0;
  transform: rotate(45deg);
}

/* ---------- Maten ---------- */

.maten {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 8px;
}

.maten__veld label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
}

.maten__regelaar {
  display: flex;
  align-items: stretch;
  border: 1px solid var(--ln-line);
  border-radius: var(--ln-radius-sm);
  background: var(--ln-panel);
  overflow: hidden;
}

.maten__regelaar input {
  width: 100%;
  min-width: 0;
  background: transparent;
  border: 0;
  color: var(--ln-ink);
  font: inherit;
  font-size: 1.15rem;
  font-weight: 700;
  text-align: center;
  padding: 12px 6px;
  -moz-appearance: textfield;
}
.maten__regelaar input::-webkit-outer-spin-button,
.maten__regelaar input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.maten__regelaar input:focus { outline: 2px solid var(--ln-blue); outline-offset: -2px; }

.maten__regelaar button {
  width: 48px;
  background: var(--ln-panel-strong);
  border: 0;
  color: var(--ln-ink);
  font-size: 1.25rem;
  cursor: pointer;
}
.maten__regelaar button:hover { background: rgba(22, 119, 255, 0.25); }

.advies {
  display: flex;
  gap: 12px;
  align-items: baseline;
  flex-wrap: wrap;
  border: 1px solid rgba(114, 228, 255, 0.35);
  background: rgba(114, 228, 255, 0.07);
  border-radius: var(--ln-radius-sm);
  padding: 14px 18px;
  margin: 12px 0;
  font-size: 0.95rem;
}

.foutmelding {
  color: #ffb4a8;
  background: rgba(238, 148, 65, 0.12);
  border: 1px solid rgba(238, 148, 65, 0.45);
  border-radius: var(--ln-radius-sm);
  padding: 12px 16px;
  font-size: 0.92rem;
}

/* ---------- Live panel ---------- */

.live-panel {
  position: sticky;
  top: 92px;
  border: 1px solid var(--ln-line);
  border-radius: var(--ln-radius);
  background: rgba(9, 17, 31, 0.88);
  padding: 24px;
  box-shadow: var(--ln-shadow);
}

.live-panel__titel {
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ln-ink-soft);
  margin-bottom: 4px;
}

.live-panel__keuze {
  font-weight: 700;
  margin: 0 0 16px;
}

.live-panel svg {
  width: 100%;
  height: auto;
  border-radius: var(--ln-radius-sm);
  display: block;
}

.live-panel__caption {
  color: var(--ln-ink-faint);
  font-size: 0.8rem;
  margin: 10px 0 16px;
}

.live-panel__rolluik {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  font-size: 0.88rem;
  color: var(--ln-ink-soft);
}
.live-panel__rolluik label { flex: none; }

input[type="range"] {
  flex: 1;
  accent-color: var(--ln-blue);
}

.live-panel__specs {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 16px;
  margin: 0 0 18px;
  font-size: 0.9rem;
}
.live-panel__specs dt { color: var(--ln-ink-faint); }
.live-panel__specs dd { margin: 0; text-align: right; }

.live-panel__prijs {
  border-top: 1px solid var(--ln-line);
  padding-top: 16px;
}
.live-panel__prijslabel {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ln-ink-soft);
  margin: 0;
}
.live-panel__prijsbedrag {
  font-size: 1.9rem;
  font-weight: 800;
  margin: 2px 0 10px;
  font-variant-numeric: tabular-nums;
}
.live-panel__disclaimer {
  font-size: 0.8rem;
  color: var(--ln-ink-faint);
  margin: 0;
}

/* ---------- Overzicht en formulier ---------- */

.overzicht {
  border: 1px solid var(--ln-line);
  border-radius: var(--ln-radius);
  background: var(--ln-panel);
  padding: 22px;
  margin-bottom: 26px;
}
.overzicht h3 { font-size: 1.1rem; }

.overzicht__specs {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 20px;
  margin: 0 0 18px;
}
.overzicht__specs dt { color: var(--ln-ink-faint); }
.overzicht__specs dd { margin: 0; }

.prijsregels { border-top: 1px solid var(--ln-line); }
.prijsregel {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--ln-line);
  font-size: 0.95rem;
}
.prijsregel__detail { color: var(--ln-ink-faint); font-size: 0.82rem; margin: 2px 0 0; }
.prijsregel__bedrag { font-variant-numeric: tabular-nums; white-space: nowrap; }

.prijs-totaal {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-top: 14px;
  font-weight: 800;
  font-size: 1.15rem;
  font-variant-numeric: tabular-nums;
}

.prijs-noot {
  color: var(--ln-ink-faint);
  font-size: 0.8rem;
  margin: 12px 0 0;
}

.aanvraag h3 { font-size: 1.1rem; margin-top: 4px; }

.aanvraag__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.veld { margin: 0; }
.veld--breed { grid-column: 1 / -1; }

.veld label {
  display: block;
  font-weight: 600;
  font-size: 0.92rem;
  margin-bottom: 6px;
}

.veld input,
.veld textarea {
  width: 100%;
  border: 1px solid var(--ln-line);
  border-radius: var(--ln-radius-sm);
  background: var(--ln-panel);
  color: var(--ln-ink);
  font: inherit;
  padding: 12px 14px;
}
.veld input:focus,
.veld textarea:focus {
  outline: 2px solid var(--ln-blue);
  outline-offset: 1px;
  border-color: transparent;
}
.veld input[aria-invalid="true"] { border-color: var(--ln-warn); }

.checkbox {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 0.9rem;
  color: var(--ln-ink-soft);
  cursor: pointer;
}
.checkbox input { margin-top: 3px; accent-color: var(--ln-blue); width: 18px; height: 18px; }

.aanvraag__akkoord { margin: 18px 0; }

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

.aanvraag__uitleg {
  color: var(--ln-ink-faint);
  font-size: 0.85rem;
  margin-top: 16px;
}
.aanvraag__uitleg.is-bevestigd { color: var(--ln-success); }

/* ---------- Uitleg, FAQ, CTA, footer ---------- */

.uitleg, .faq, .final-cta {
  padding: clamp(48px, 7vw, 96px) 0;
  border-top: 1px solid var(--ln-line);
}

.sectie__kicker {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ln-cyan);
  margin: 0 0 12px;
}

.sectie__titel {
  font-size: clamp(1.6rem, 3.4vw, 2.4rem);
  margin-bottom: 30px;
}

.uitleg__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.kaart {
  border: 1px solid var(--ln-line);
  border-radius: var(--ln-radius);
  background: var(--ln-panel);
  padding: 26px;
}
.kaart h3 { font-size: 1.08rem; }
.kaart p { color: var(--ln-ink-soft); margin: 0; }

.faq details {
  border: 1px solid var(--ln-line);
  border-radius: var(--ln-radius-sm);
  background: var(--ln-panel);
  padding: 4px 22px;
  margin-bottom: 12px;
}

.faq summary {
  cursor: pointer;
  font-weight: 600;
  padding: 14px 0;
  list-style: none;
  position: relative;
  padding-right: 34px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--ln-cyan);
  font-size: 1.3rem;
}
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--ln-ink-soft); margin: 0 0 18px; }

.prijstabel { overflow-x: auto; margin-bottom: 20px; }
.prijstabel table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
.prijstabel caption {
  text-align: left;
  color: var(--ln-ink-faint);
  font-size: 0.8rem;
  padding-bottom: 10px;
}
.prijstabel th, .prijstabel td {
  text-align: left;
  padding: 9px 12px 9px 0;
  border-bottom: 1px solid var(--ln-line);
}
.prijstabel td:last-child, .prijstabel th:last-child {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.final-cta {
  background:
    radial-gradient(900px 420px at 50% 0%, rgba(22, 119, 255, 0.18), transparent 65%),
    var(--ln-night-2);
}
.final-cta__lead {
  color: var(--ln-ink-soft);
  max-width: 62ch;
  margin-bottom: 28px;
}

.site-footer {
  border-top: 1px solid var(--ln-line);
  padding: clamp(40px, 5vw, 64px) 0 28px;
  background: var(--ln-night-2);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
}

.site-footer__claim {
  color: var(--ln-ink-faint);
  font-size: 0.9rem;
  max-width: 34ch;
  margin-top: 14px;
}

.site-footer__kop {
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ln-ink-soft);
  margin-bottom: 12px;
}

.site-footer__lijst {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
  color: var(--ln-ink-soft);
  font-size: 0.95rem;
}
.site-footer__lijst a { text-decoration: none; }

.site-footer__onder {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
  border-top: 1px solid var(--ln-line);
  margin-top: 34px;
  padding-top: 20px;
  color: var(--ln-ink-faint);
  font-size: 0.82rem;
}
.site-footer__onder p { margin: 0; }

/* ---------- Responsive ---------- */

@media (max-width: 1020px) {
  .config-grid { grid-template-columns: 1fr; }
  .live-panel { position: static; order: -1; }
  .site-footer__inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .site-header__product { display: none; }
  .site-header__help { font-size: 0.82rem; }
  .aanvraag__grid { grid-template-columns: 1fr; }
  .stap-nav { flex-direction: column-reverse; }
  .stap-nav .button { width: 100%; }
  .site-footer__inner { grid-template-columns: 1fr; }
  .keuze__prijs { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}