/* Quiet Office AI. World: a flat Kempen horizon just before sunrise. Night, one warm light, engineered type (Barlow). */
@font-face { font-family: "Barlow"; src: url("/fonts/barlow-latin-300-normal.woff2") format("woff2"); font-weight: 300; font-display: swap; }
@font-face { font-family: "Barlow"; src: url("/fonts/barlow-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Barlow"; src: url("/fonts/barlow-latin-500-normal.woff2") format("woff2"); font-weight: 500; font-display: swap; }
@font-face { font-family: "Barlow"; src: url("/fonts/barlow-latin-600-normal.woff2") format("woff2"); font-weight: 600; font-display: swap; }

:root {
  --night: #08090b; --night-2: #0e1013; --ink: #f4f1ea; --ink-dim: #b3afa6; --ink-faint: #8a867e;
  --dawn: #f2a65a; --dawn-deep: #e07a3a; --sand: #f3efe8; --char: #141518; --char-dim: #4f4d48;
  --line-dark: rgba(244, 241, 234, 0.14); --line-light: rgba(20, 21, 24, 0.14);
  --wrap: 78rem; --gut: clamp(1.25rem, 4vw, 3rem);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  color-scheme: dark;
}
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 5rem; scrollbar-color: #3a3833 var(--night); -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--night); color: var(--ink); font: 400 1.0625rem/1.6 "Barlow", system-ui, sans-serif; font-feature-settings: "kern"; -webkit-font-smoothing: antialiased; caret-color: var(--dawn); }
::selection { background: var(--dawn); color: var(--night); }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.22em; }
a:hover { text-decoration-color: var(--dawn); }
:focus-visible { outline: 2px solid var(--dawn); outline-offset: 3px; border-radius: 2px; }
h1, h2, h3 { margin: 0; font-weight: 500; line-height: 1.05; letter-spacing: -0.02em; text-wrap: balance; }
p { margin: 0 0 1rem; text-wrap: pretty; }
.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gut); }
.num { font-variant-numeric: tabular-nums lining-nums; }
.skip { position: absolute; left: -999px; top: 0; background: var(--ink); color: var(--night); padding: 0.75rem 1rem; z-index: 50; }
.skip:focus { left: 1rem; top: 1rem; }

/* Header */
.top { position: fixed; inset: 0 0 auto 0; z-index: 20; transition: background-color 0.4s var(--ease), border-color 0.4s var(--ease); border-bottom: 1px solid transparent; }
.top.solid { background: rgba(8, 9, 11, 0.94); -webkit-backdrop-filter: blur(14px) saturate(1.2); backdrop-filter: blur(14px) saturate(1.2); border-bottom-color: var(--line-dark); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; min-height: 4.5rem; }
.mark { display: inline-flex; align-items: center; gap: 0.7rem; text-decoration: none; font-weight: 600; font-size: 0.875rem; letter-spacing: 0.24em; text-transform: uppercase; white-space: nowrap; }
.mark svg { width: 1.6rem; height: 1.6rem; flex: none; }
.mark small { font-size: inherit; font-weight: 400; color: var(--dawn); letter-spacing: inherit; }
.nav { display: flex; align-items: center; gap: clamp(1rem, 2.4vw, 2.25rem); }
.nav a { font-size: 0.8125rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; text-decoration: none; color: var(--ink-dim); transition: color 0.2s; }
.nav a:hover { color: var(--ink); }
.nav .btn { color: var(--night); }
@media (max-width: 52rem) { .nav a:not(.btn) { display: none; } }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.75rem; min-height: 3.25rem; padding: 0 1.75rem; border: 1px solid var(--ink); border-radius: 2px; background: var(--ink); color: var(--night); font: 600 0.875rem/1 "Barlow", sans-serif; letter-spacing: 0.14em; text-transform: uppercase; text-decoration: none; cursor: pointer; transition: background-color 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease); }
.btn:hover { background: var(--dawn); border-color: var(--dawn); color: var(--night); }
.btn svg { width: 1rem; height: 1rem; transition: transform 0.35s var(--ease); }
.btn:hover svg { transform: translateX(3px); }
.btn.ghost { background: transparent; color: var(--ink); border-color: rgba(244, 241, 234, 0.45); }
.btn.ghost:hover { border-color: var(--ink); background: rgba(244, 241, 234, 0.07); color: var(--ink); }
.nav .btn { min-height: 2.5rem; padding: 0 1.1rem; font-size: 0.75rem; white-space: nowrap; }
@media (max-width: 24rem) { .mark { letter-spacing: 0.16em; } .nav .btn { padding: 0 0.8rem; } }
.btn:disabled { opacity: 0.5; cursor: progress; }
.on-light .btn { background: var(--char); border-color: var(--char); color: var(--sand); }
.on-light .btn:hover { background: var(--dawn-deep); border-color: var(--dawn-deep); color: var(--night); }

/* Hero: the horizon */
.hero { position: relative; min-height: 100svh; display: flex; flex-direction: column; justify-content: flex-end; overflow: hidden; isolation: isolate; background: var(--night); }
.sky { position: absolute; inset: 0; z-index: -1; pointer-events: none; }
.sky .glow { position: absolute; left: 50%; top: 76%; width: 150vmax; height: 70vmax; transform: translate(-50%, -50%); background: radial-gradient(closest-side, rgba(242, 166, 90, 0.52), rgba(224, 122, 58, 0.22) 38%, rgba(120, 60, 40, 0.08) 62%, transparent 78%); filter: blur(6px); animation: rise 3.2s var(--ease) both; }
.sky .line { position: absolute; left: 0; right: 0; top: 76%; height: 1px; background: linear-gradient(90deg, transparent, rgba(255, 214, 170, 0.35) 18%, rgba(255, 226, 196, 0.95) 50%, rgba(255, 214, 170, 0.35) 82%, transparent); animation: spread 2.4s var(--ease) both; }
.sky .ground { position: absolute; left: 0; right: 0; top: calc(76% + 1px); bottom: 0; background: linear-gradient(180deg, #0b0a0a 0%, #060607 55%, var(--night) 100%); }
.sky .ground::before { content: ""; position: absolute; left: 50%; top: 0; width: 70%; height: 28%; transform: translateX(-50%); background: radial-gradient(closest-side at 50% 0%, rgba(242, 166, 90, 0.16), transparent 80%); }
.sky .sun { position: absolute; left: 50%; top: 76%; width: min(70vw, 56rem); height: min(22vw, 17rem); transform: translate(-50%, -50%); background: radial-gradient(closest-side, rgba(255, 228, 196, 0.62), rgba(255, 186, 120, 0.3) 45%, transparent 100%); filter: blur(2px); animation: rise 3.2s var(--ease) both; }
.sky .grain { position: absolute; inset: 0; opacity: 0.07; mix-blend-mode: overlay; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }
@keyframes rise { from { transform: translate(-50%, -38%); opacity: 0.35; } to { transform: translate(-50%, -50%); opacity: 1; } }
@keyframes spread { from { transform: scaleX(0.15); opacity: 0.4; } to { transform: scaleX(1); opacity: 1; } }
.hero-copy { display: flex; flex-direction: column; align-items: center; text-align: center; padding-top: 8rem; padding-bottom: calc(24svh + clamp(2.5rem, 7vh, 5rem)); }
.hero h1 { font-size: clamp(2.75rem, 1.4rem + 5.6vw, 6rem); max-width: 16ch; }
.hero .lede { margin: 1.75rem auto 0; max-width: 38rem; font-size: clamp(1.125rem, 1rem + 0.45vw, 1.375rem); line-height: 1.5; color: var(--ink-dim); }
.hero .lede strong { color: var(--ink); font-weight: 500; }
.ctas { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.75rem; margin-top: 2.5rem; }
.hero-foot { position: absolute; left: 0; right: 0; bottom: 1.5rem; }
.hero-foot .wrap { display: flex; justify-content: space-between; gap: 1rem; font-size: 0.75rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-faint); }
@media (max-width: 40rem) { .hero-foot .wrap span + span { display: none; } }

/* Sections */
section { position: relative; }
.band { padding: clamp(5rem, 4rem + 6vw, 10rem) 0; }
.light + .light { padding-top: 0; }
.light { background: var(--sand); color: var(--char); color-scheme: light; }
.light ::selection { background: var(--char); color: var(--sand); }
.light :focus-visible { outline-color: var(--dawn-deep); }
.h2 { font-size: clamp(2.25rem, 1.5rem + 3.2vw, 4.25rem); max-width: 16ch; }
.intro { max-width: 40rem; margin-top: 1.5rem; font-size: 1.1875rem; color: var(--ink-dim); }
.light .intro { color: var(--char-dim); }

/* Statement */
.statement .wrap { display: grid; gap: 2.5rem; }
.statement p.big { font-size: clamp(1.375rem, 1.1rem + 1.1vw, 2rem); line-height: 1.4; font-weight: 300; max-width: 46rem; color: var(--ink-dim); }
.statement p.big em { font-style: normal; color: var(--ink); font-weight: 400; }

/* Modules: spec sheet */
.spec { margin-top: clamp(3rem, 5vw, 4.5rem); border-top: 1px solid var(--line-light); }
.spec-row { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1.6fr) 7.5rem; gap: 1rem 3rem; align-items: baseline; padding: 1.75rem 0; border-bottom: 1px solid var(--line-light); }
.spec-row h3 { font-size: clamp(1.375rem, 1.2rem + 0.7vw, 1.75rem); }
.spec-row p { margin: 0; color: var(--char-dim); max-width: 34rem; }
.price { font-size: 1.375rem; font-weight: 500; white-space: nowrap; text-align: right; }
.price span { display: block; font-size: 0.75rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--char-dim); }
.setup { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1.6fr) 7.5rem; gap: 1rem 3rem; padding: 2.25rem 0 0; align-items: baseline; }
.setup h3 { font-size: clamp(1.375rem, 1.2rem + 0.7vw, 1.75rem); }
.setup p { margin: 0; color: var(--char-dim); max-width: 34rem; }
.setup .price { font-size: 1.75rem; }
@media (max-width: 52rem) { .spec-row, .setup { grid-template-columns: 1fr auto; } .spec-row p, .setup p { grid-column: 1 / -1; grid-row: 2; } }

/* Calculator */
.calc .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(3rem, 6vw, 7rem); align-items: start; }
@media (max-width: 60rem) { .calc .wrap { grid-template-columns: 1fr; } }
.field { margin-top: 2.25rem; }
.field label, .field .lab { display: flex; justify-content: space-between; gap: 1rem; font-size: 0.8125rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-dim); margin-bottom: 1rem; }
.field output { color: var(--ink); font-size: 1rem; letter-spacing: 0.02em; text-transform: none; font-weight: 500; }
input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 1.5rem; background: transparent; margin: 0; cursor: pointer; --p: 50%; }
input[type="range"]::-webkit-slider-runnable-track { height: 2px; background: linear-gradient(90deg, var(--dawn) var(--p), rgba(244, 241, 234, 0.2) var(--p)); }
input[type="range"]::-moz-range-track { height: 2px; background: rgba(244, 241, 234, 0.2); }
input[type="range"]::-moz-range-progress { height: 2px; background: var(--dawn); }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 1.125rem; height: 1.125rem; margin-top: -8px; border-radius: 50%; background: var(--ink); border: 0; box-shadow: 0 0 0 6px rgba(242, 166, 90, 0.18), 0 2px 8px rgba(0, 0, 0, 0.5); transition: box-shadow 0.2s; }
input[type="range"]::-moz-range-thumb { width: 1.125rem; height: 1.125rem; border-radius: 50%; background: var(--ink); border: 0; box-shadow: 0 0 0 6px rgba(242, 166, 90, 0.18); }
input[type="range"]:focus-visible { outline: none; }
input[type="range"]:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 3px var(--night), 0 0 0 5px var(--dawn); }
.mods { display: grid; gap: 0; margin: 0; padding: 0; border: 0; border-top: 1px solid var(--line-dark); }
.mods legend { padding: 0; margin-bottom: 1rem; font-size: 0.8125rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-dim); }
.mods { margin-top: 2.75rem; }
.field.mods label { display: flex; justify-content: flex-start; align-items: center; gap: 0.9rem; margin: 0; padding: 0.85rem 0; border-bottom: 1px solid var(--line-dark); cursor: pointer; font-size: 1.0625rem; font-weight: 400; letter-spacing: 0; text-transform: none; color: var(--ink); }
.mods label span:last-child { margin-left: auto; color: var(--ink-dim); }
.mods input { width: 1.125rem; height: 1.125rem; margin: 0; accent-color: var(--dawn); flex: none; }
.result { position: sticky; top: 7rem; padding: clamp(1.75rem, 3vw, 2.75rem); border: 1px solid var(--line-dark); background: linear-gradient(180deg, rgba(242, 166, 90, 0.07), rgba(242, 166, 90, 0) 60%), var(--night-2); border-radius: 3px; }
.result dl { margin: 0; display: grid; }
.result .r { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; padding: 0.95rem 0; border-bottom: 1px solid var(--line-dark); }
.result dt { color: var(--ink-dim); }
.result dd { margin: 0; font-size: 1.25rem; font-weight: 500; }
.result .net { display: block; padding: 1.75rem 0 0.5rem; border: 0; }
.result .net dt { font-size: 0.8125rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; }
.result .net dd { font-size: clamp(3rem, 2rem + 4vw, 5rem); font-weight: 300; line-height: 1.05; letter-spacing: -0.03em; color: var(--ink); margin-top: 0.5rem; }
.result .net dd small { font-size: 0.3em; letter-spacing: 0.02em; color: var(--ink-dim); font-weight: 400; }
.result .payback { color: var(--dawn); font-weight: 500; margin: 0.5rem 0 0; }
.result .note { margin: 1.5rem 0 0; font-size: 0.875rem; color: var(--ink-faint); }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(2rem, 4vw, 4rem); margin-top: clamp(3rem, 5vw, 4.5rem); padding: 0; list-style: none; counter-reset: s; }
.steps li { border-top: 1px solid var(--char); padding-top: 1.5rem; counter-increment: s; }
.steps li::before { content: counter(s); display: block; font-size: 0.8125rem; font-weight: 600; letter-spacing: 0.14em; color: var(--dawn-deep); margin-bottom: 1.25rem; font-variant-numeric: tabular-nums; }
.steps h3 { font-size: 1.5rem; margin-bottom: 0.75rem; }
.steps p { color: var(--char-dim); margin: 0; }
@media (max-width: 52rem) { .steps { grid-template-columns: 1fr; } }

/* Personal */
.person .wrap { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: clamp(3rem, 6vw, 7rem); }
@media (max-width: 60rem) { .person .wrap { grid-template-columns: 1fr; } }
.person .words p { font-size: clamp(1.25rem, 1.05rem + 0.8vw, 1.625rem); line-height: 1.5; font-weight: 400; color: var(--char); }
.person .words p.sign { margin-top: 2rem; font-size: 0.8125rem; font-weight: 500; letter-spacing: 0.16em; text-transform: uppercase; color: var(--char-dim); display: flex; align-items: center; gap: 0.8rem; }
.person .words p.sign svg { width: 1.6rem; height: 1.6rem; }
.promise { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line-light); }
.promise li { padding: 1.25rem 0; border-bottom: 1px solid var(--line-light); }
.promise strong { display: block; font-weight: 600; font-size: 1.125rem; margin-bottom: 0.25rem; }
.promise span { color: var(--char-dim); }

/* FAQ */
.faq-list { margin-top: clamp(2.5rem, 4vw, 3.5rem); border-top: 1px solid var(--line-light); max-width: 52rem; }
.faq-list details { border-bottom: 1px solid var(--line-light); }
.faq-list summary { list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 1.5rem; padding: 1.5rem 0; cursor: pointer; font-size: 1.25rem; font-weight: 500; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary i { position: relative; flex: none; width: 1rem; height: 1rem; }
.faq-list summary i::before, .faq-list summary i::after { content: ""; position: absolute; left: 0; top: 50%; width: 100%; height: 1.5px; background: currentColor; transition: transform 0.35s var(--ease); }
.faq-list summary i::after { transform: rotate(90deg); }
.faq-list details[open] summary i::after { transform: rotate(0deg); }
.faq-list details p { margin: 0 0 1.5rem; max-width: 44rem; color: var(--char-dim); }

/* Contact */
.contact { overflow: hidden; isolation: isolate; }
.contact::before { content: ""; position: absolute; z-index: -1; left: 50%; top: 0; width: 120vmax; height: 50vmax; transform: translate(-50%, -50%); background: radial-gradient(closest-side, rgba(242, 166, 90, 0.2), rgba(224, 122, 58, 0.06) 55%, transparent 75%); }
.contact .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: clamp(3rem, 6vw, 7rem); }
@media (max-width: 60rem) { .contact .wrap { grid-template-columns: 1fr; } }
.contact .intro a { color: var(--ink); }
#form { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem 1.25rem; }
#form .full { grid-column: 1 / -1; }
@media (max-width: 36rem) { #form { grid-template-columns: 1fr; } }
.f label { display: block; font-size: 0.75rem; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-dim); margin-bottom: 0.5rem; }
.f label i { font-style: normal; text-transform: none; letter-spacing: 0; color: var(--ink-faint); }
.f input, .f textarea { width: 100%; padding: 0.85rem 0; border: 0; border-bottom: 1px solid rgba(244, 241, 234, 0.35); border-radius: 0; background: transparent; color: var(--ink); font: 400 1.0625rem/1.4 "Barlow", sans-serif; transition: border-color 0.2s; }
.f textarea { min-height: 6.5rem; resize: vertical; }
.f input::placeholder, .f textarea::placeholder { color: #85817a; }
.f input:hover, .f textarea:hover { border-bottom-color: rgba(244, 241, 234, 0.6); }
.f input:focus, .f textarea:focus { outline: none; border-bottom-color: var(--dawn); }
.f input:user-invalid { border-bottom-color: #ff8f73; }
.hp { position: absolute; left: -5000px; width: 1px; height: 1px; overflow: hidden; }
.send { display: flex; flex-wrap: wrap; align-items: center; gap: 1.25rem; }
.send small { color: var(--ink-faint); font-size: 0.875rem; max-width: 26rem; }
.melding { grid-column: 1 / -1; margin: 0; padding: 1rem 1.25rem; border: 1px solid var(--line-dark); border-radius: 2px; background: var(--night-2); }
.melding.ok { border-color: rgba(242, 166, 90, 0.6); }

/* Footer */
footer { border-top: 1px solid var(--line-dark); padding: 3.5rem 0 3rem; font-size: 0.9375rem; color: var(--ink-faint); }
footer .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 2rem 4rem; }
footer p { margin: 0 0 0.75rem; }
footer a { color: var(--ink-dim); }
footer .mark { color: var(--ink); margin-bottom: 1.25rem; }
@media (max-width: 52rem) { footer .wrap { grid-template-columns: 1fr; } }

/* Reading pages (terms) */
.doc { padding: 9rem 0 6rem; }
.doc .wrap { max-width: 48rem; }
.doc h1 { font-size: clamp(2.5rem, 1.8rem + 3vw, 4rem); }
.doc .lede { color: var(--char-dim); font-size: 1.1875rem; margin: 1.25rem 0 3rem; }
.doc h2 { font-size: 1.5rem; margin: 3rem 0 1rem; }
.doc p, .doc li { color: #2b2a27; }
.doc ul { padding-left: 1.2rem; }
.doc li { margin-bottom: 0.5rem; }
.doc address { font-style: normal; margin-bottom: 1rem; }

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