/* ==========================================================================
   GRIP OP AI — site styles
   Built on colors_and_type.css. One typeface (Rowan), cool paper & ink,
   blue lead accent, hairline borders. Cinematic photo hero + diagrammatic
   concept figures that draw themselves on. Minimal by rule.
   ========================================================================== */

/* ---- Reset / base ------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--text-body);
  line-height: var(--leading-relaxed);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; }

:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; border-radius: var(--radius-sm); }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--ink); color: var(--on-ink);
  padding: 10px 16px; z-index: 300; border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

/* ---- Layout helpers ----------------------------------------------------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(52px, 7vw, 88px); }
.section--tight { padding-block: clamp(40px, 5.5vw, 64px); }
.measure { max-width: var(--measure); }

/* Eyebrow with a leading rule */
.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--font-label); font-weight: 600;
  font-size: var(--text-xs); letter-spacing: var(--tracking-label);
  text-transform: uppercase; color: var(--primary);
  margin: 0 0 var(--space-4);
}
.eyebrow::before { content: ""; width: 28px; height: 1px; background: currentColor; opacity: .7; }
.eyebrow--plain::before { display: none; }
.eyebrow--light { color: var(--gold); }

/* Mono meta label */
.meta {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums lining-nums;
  font-size: var(--text-xs); font-weight: 500;
  letter-spacing: 0.13em; text-transform: uppercase; color: var(--ink-3);
}

h1, h2, h3, h4 { margin: 0; }
.h1 { font: 400 var(--text-h1)/var(--leading-tight) var(--font-display); letter-spacing: var(--tracking-display); }
.h2 { font: 400 var(--text-h2)/var(--leading-snug) var(--font-display); letter-spacing: var(--tracking-tight); }
.h3 { font: 500 var(--text-h3)/var(--leading-snug) var(--font-display); }
.lead { font-family: var(--font-display); font-weight: 400; font-size: var(--text-body-lg); line-height: var(--leading-normal); color: var(--ink-2); }
p { margin: 0 0 var(--space-4); color: var(--ink-2); }
p:last-child { margin-bottom: 0; }

/* ---- Buttons ------------------------------------------------------------ */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-sans); font-size: var(--text-body); font-weight: 500;
  letter-spacing: -0.01em; padding: 12px 22px;
  border: 1px solid transparent; border-radius: var(--radius-sm);
  cursor: pointer; text-decoration: none;
  transition: background var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out),
              color var(--dur) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--primary); color: var(--on-primary); }
.btn--primary:hover { background: var(--primary-hover); }
.btn--ink { background: var(--ink); color: var(--on-ink); }
.btn--ink:hover { background: #000; }
.btn--ghost { background: transparent; color: var(--ink); padding-inline: 0; }
.btn--ghost .arr { color: var(--primary); transition: transform var(--dur) var(--ease-out); }
.btn--ghost:hover .arr { transform: translateX(5px); }
.btn--ghost-light { color: var(--on-ink); }
.btn--ghost-light .arr { color: var(--gold); }
.btn--sm { font-size: var(--text-sm); padding: 8px 15px; }

/* Inline link with growing underline */
.tlink {
  color: inherit; text-decoration: none;
  background-image: linear-gradient(var(--primary), var(--primary));
  background-size: 0% 2px; background-position: 0 100%; background-repeat: no-repeat;
  padding-bottom: 2px; transition: background-size var(--dur) var(--ease-out);
}
.tlink:hover { background-size: 100% 2px; }

/* ---- Scroll progress ---------------------------------------------------- */
.scrollbar { position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 250; pointer-events: none; }
.scrollbar__fill { display: block; height: 100%; width: 0%; background: linear-gradient(90deg, var(--primary), var(--gold)); }

/* ==========================================================================
   Header — transparent over the hero, solid hairline once scrolled
   ========================================================================== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: transparent; border-bottom: 1px solid transparent;
  transition: background var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out);
}
.site-header.is-scrolled {
  background: color-mix(in srgb, var(--paper-raised) 90%, transparent);
  -webkit-backdrop-filter: saturate(1.1) blur(8px); backdrop-filter: saturate(1.1) blur(8px);
  border-bottom-color: var(--line);
}
.site-header__inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; }
.brand img { width: 26px; height: 26px; }
.brand b { font-family: var(--font-display); font-size: 1.3125rem; font-weight: 500; letter-spacing: -0.01em; color: var(--on-ink); transition: color var(--dur) var(--ease-out); }
.site-header.is-scrolled .brand b { color: var(--ink); }

.nav { display: flex; align-items: center; gap: var(--space-6); }
.nav__links { display: flex; gap: var(--space-6); }
.nav__links a {
  font-size: var(--text-sm); color: rgba(237,239,242,.82); text-decoration: none;
  position: relative; padding-block: 4px; transition: color var(--dur) var(--ease-out);
}
.nav__links a:hover { color: #fff; }
.site-header.is-scrolled .nav__links a { color: var(--ink-2); }
.site-header.is-scrolled .nav__links a:hover { color: var(--ink); }
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 100%; height: 2px;
  background: var(--gold); transform: scaleX(0); transform-origin: left;
  transition: transform var(--dur) var(--ease-out);
}
.site-header.is-scrolled .nav__links a::after { background: var(--primary); }
.nav__links a:hover::after, .nav__links a.is-active::after { transform: scaleX(1); }

.nav-toggle { display: none; }

/* ==========================================================================
   Hero — cinematic workshop photo + the room drawn as a vector space
   ========================================================================== */
.hero {
  position: relative; isolation: isolate; overflow: hidden;
  min-height: clamp(560px, 88vh, 800px);
  margin-top: -68px; padding-top: 68px;            /* sit under the transparent header */
  display: flex; align-items: center;
  background: #0d0f12;
}
.hero__media { position: absolute; inset: 0; z-index: 0; }
.hero__lqip {
  position: absolute; inset: 0;
  background-size: cover; background-position: 50% 42%;
  filter: blur(28px) saturate(1.15); transform: scale(1.08);
}
.hero__img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: 50% 40%;
}

/* Scrim: dark on the copy side, gentle vignette elsewhere */
.hero__scrim {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    linear-gradient(102deg, rgba(13,15,18,.90) 0%, rgba(13,15,18,.70) 30%, rgba(13,15,18,.18) 58%, rgba(13,15,18,.34) 100%),
    linear-gradient(0deg, rgba(13,15,18,.55) 0%, rgba(13,15,18,0) 38%);
}
/* The lattice — the coordinate space itself, faded toward the centre */
.hero__lattice {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background-image: radial-gradient(circle, rgba(237,239,242,.16) 1px, transparent 1.6px);
  background-size: 30px 30px;
  -webkit-mask-image: radial-gradient(130% 110% at 78% 78%, #000 0%, transparent 60%);
  mask-image: radial-gradient(130% 110% at 78% 78%, #000 0%, transparent 60%);
}
.hero__gizmo {
  position: absolute; z-index: 2; right: clamp(16px, 5vw, 64px); bottom: clamp(56px, 9vh, 96px);
  width: clamp(180px, 26vw, 280px); height: auto;
  filter: drop-shadow(0 2px 5px rgba(0,0,0,.45));
}
.hero__caption {
  position: absolute; z-index: 2; right: clamp(16px, 5vw, 64px); bottom: clamp(26px, 4.5vh, 44px);
  margin: 0; text-align: right;
  font-family: var(--font-mono); font-style: italic; font-size: var(--text-sm);
  color: rgba(237,239,242,.7);
}

.hero__overlay { position: relative; z-index: 3; width: 100%; padding-block: var(--space-8); }
.hero__copy { max-width: 38rem; }
.hero__title {
  margin: var(--space-3) 0 var(--space-5);
  font: 300 var(--text-display)/var(--leading-tight) var(--font-display);
  letter-spacing: var(--tracking-display); color: #EEF0F1;
}
.hero__title span { display: block; }
.hero__title em { font-style: italic; color: var(--gold); }
.hero__lead { max-width: 40ch; margin-bottom: var(--space-6); font-size: var(--text-body-lg); color: rgba(237,239,242,.84); }
.hero__actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-4) var(--space-6); }
.hero__meta { margin-top: var(--space-6); color: rgba(237,239,242,.58); }

/* Hero entrance */
.hero__el { opacity: 0; transform: translateY(16px); transition: opacity .7s var(--ease-out) var(--d,0ms), transform .7s var(--ease-out) var(--d,0ms); }
.hero.is-ready .hero__el { opacity: 1; transform: none; }

/* ==========================================================================
   Generic reveal + draw-on system (driven by ancestor is-in / is-ready)
   ========================================================================== */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity var(--dur-slow) var(--ease-out) var(--d,0ms), transform var(--dur-slow) var(--ease-out) var(--d,0ms); }
.reveal.is-in { opacity: 1; transform: none; }

.an { opacity: 0; transform: translateY(6px); transform-box: fill-box;
  transition: opacity var(--dur-slow) var(--ease-out) var(--d,0ms), transform var(--dur-slow) var(--ease-out) var(--d,0ms); }
.draw { stroke-dasharray: var(--len, 300); stroke-dashoffset: var(--len, 300);
  transition: stroke-dashoffset var(--dur-slow) var(--ease-out) var(--d,0ms); }
.grow { transform: scaleY(0.02); transform-box: fill-box; transform-origin: 50% 100%;
  transition: transform var(--dur-slow) var(--ease-out) var(--d,0ms); }
.is-in .an, .is-ready .an { opacity: 1; transform: none; }
.is-in .draw, .is-ready .draw { stroke-dashoffset: 0; }
.is-in .grow, .is-ready .grow { transform: none; }
.glow-b { filter: drop-shadow(0 1px 1px rgba(224,66,28,.25)); }
.pulse { opacity: 0; }
.is-in .pulse, .is-ready .pulse { animation: caret 1.1s steps(1) .9s infinite; }
@keyframes caret { 0%,49% { opacity: 1; } 50%,100% { opacity: .15; } }

/* ==========================================================================
   Statement
   ========================================================================== */
.statement .container { text-align: center; }
.statement .eyebrow { justify-content: center; }
.statement .eyebrow::before { display: none; }
.statement__lead { max-width: 22ch; margin: 0 auto var(--space-5); }
.statement__lead em { font-style: italic; color: var(--secondary); }
.statement__body { max-width: 56ch; margin: 0 auto; }

.section-intro { max-width: 62ch; margin: 0 auto var(--space-7); text-align: center; }
.section-intro .eyebrow { justify-content: center; }
.section-intro .eyebrow::before { display: none; }
.section-intro .h2 { margin-bottom: var(--space-4); }
.section-intro p { margin-inline: auto; }

/* ==========================================================================
   Workshop meta chips
   ========================================================================== */
.workshop-meta { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-3) var(--space-4); margin-top: var(--space-6); }
.program { margin-top: var(--space-7); }
.program__label { display: flex; justify-content: center; margin: 0 0 var(--space-6); }
.chip { display: inline-flex; align-items: baseline; gap: 9px; border: 1px solid var(--line); border-radius: var(--radius-pill); padding: 8px 16px; font-size: var(--text-sm); color: var(--ink); }
.chip__k { font-family: var(--font-mono); font-size: var(--text-micro); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); }

/* ==========================================================================
   Program — concept diagram cards
   ========================================================================== */
.grid { display: grid; gap: var(--space-5); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }

.card {
  display: flex; flex-direction: column;
  background: var(--paper-raised); border: 1px solid var(--line);
  border-radius: var(--radius-md); overflow: hidden;
  transition: border-color var(--dur) var(--ease-out), transform var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out);
}
.card:hover { border-color: var(--line-strong); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.card__figure {
  position: relative; display: flex; align-items: center; justify-content: center;
  height: 168px; padding: 16px 20px; background: var(--paper-sunken);
  border-bottom: 1px solid var(--line); overflow: hidden;
}
.card__figure::before {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(circle, #C7CCD1 1px, transparent 1.4px);
  background-size: 18px 18px; opacity: .5;
  -webkit-mask-image: radial-gradient(120% 120% at 50% 0%, #000, transparent 78%);
  mask-image: radial-gradient(120% 120% at 50% 0%, #000, transparent 78%);
}
.dgm { position: relative; z-index: 1; width: 100%; height: 100%; max-width: 280px; }
.card__body { padding: var(--space-4) var(--space-5) var(--space-5); }
.card__num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; font-size: var(--text-xs); font-weight: 600; letter-spacing: var(--tracking-label); text-transform: uppercase; color: var(--primary); }
.card__title { margin: var(--space-2) 0; font: 500 var(--text-h4)/var(--leading-snug) var(--font-display); letter-spacing: var(--tracking-tight); color: var(--ink); }
.card__desc { font-size: var(--text-sm); line-height: var(--leading-normal); color: var(--ink-2); margin: 0; }

/* Wider "onderweg" cards */
.card--wide .card__body { padding: var(--space-6); }
.card--wide .card__title { font-size: var(--text-h3); margin-top: var(--space-3); }
.tag {
  display: inline-block; align-self: flex-start;
  font-family: var(--font-mono); font-size: var(--text-micro); font-weight: 600;
  letter-spacing: var(--tracking-label); text-transform: uppercase;
  color: var(--secondary-hover); background: var(--secondary-tint);
  padding: 4px 10px; border-radius: var(--radius-sm);
}

/* ==========================================================================
   Quote
   ========================================================================== */
.quote { text-align: center; background: var(--primary-deep); color: var(--on-primary-deep); }
.quote blockquote {
  margin: 0 auto; max-width: 24ch;
  font-family: var(--font-display); font-weight: 300; font-style: italic;
  font-size: var(--text-h2); line-height: var(--leading-snug);
  letter-spacing: var(--tracking-tight); color: var(--on-primary-deep);
}
.quote blockquote em { color: var(--gold); font-style: italic; }
.quote .mark { font-family: var(--font-display); font-size: 4rem; line-height: 0; color: var(--gold); opacity: .55; display: block; height: 2rem; }
.quote figcaption { margin-top: var(--space-6); display: flex; flex-direction: column; gap: 4px; }
.quote .cite-name { font-weight: 600; color: var(--on-primary-deep); }
.quote .cite-role { color: var(--on-deep-muted); text-transform: none; letter-spacing: .04em; }

/* ==========================================================================
   Team — no portraits, typographic monogram tiles
   ========================================================================== */
.team-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-7); }
.member { display: grid; grid-template-columns: 64px 1fr; gap: var(--space-5); align-items: start; }
.member__mono {
  width: 64px; height: 64px; display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--line-strong); border-radius: var(--radius-md);
  background: linear-gradient(150deg, var(--paper-raised), var(--paper-sunken));
  font-family: var(--font-display); font-weight: 500; font-size: 1.5rem; letter-spacing: .02em;
  color: var(--primary);
}
.member__name { font: 500 var(--text-h3)/1.1 var(--font-display); color: var(--ink); }
.member__role { margin: 4px 0 var(--space-3); text-transform: none; letter-spacing: .04em; }
.member__bio { font-size: var(--text-sm); color: var(--ink-2); margin-bottom: var(--space-4); }
.member__contact { display: flex; flex-direction: column; gap: 7px; font-size: var(--text-sm); }
.member__contact a { display: inline-flex; align-items: center; gap: 9px; color: var(--ink-2); width: fit-content; }
.member__contact a:hover { color: var(--ink); }
.member__contact .gl { color: var(--primary); font-family: var(--font-mono); }

/* ==========================================================================
   Contact / footer
   ========================================================================== */
.contact { background: var(--primary-tint); }
.contact__inner { text-align: center; max-width: 56ch; margin-inline: auto; }
.contact .h2 { margin-bottom: var(--space-4); }
.contact .h2 em { font-style: italic; color: var(--secondary); }
.contact__actions { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: var(--space-4) var(--space-6); margin-top: var(--space-6); }
.contact__phone { font-family: var(--font-mono); font-variant-numeric: tabular-nums; letter-spacing: .04em; color: var(--ink); }

.site-footer { border-top: 1px solid var(--line); padding-block: var(--space-7); }
.site-footer__inner { display: flex; flex-wrap: wrap; gap: var(--space-4); align-items: center; justify-content: space-between; }
.site-footer .meta { color: var(--ink-3); }
.site-footer .brand b { font-size: 1.125rem; color: var(--ink); }

/* ==========================================================================
   Reduced motion
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
  .reveal, .hero__el, .an { opacity: 1; transform: none; transition: none; }
  .draw { stroke-dashoffset: 0; transition: none; }
  .grow { transform: none; transition: none; }
  .pulse { opacity: 1; animation: none; }
  .card:hover { transform: none; }
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 960px) {
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; gap: var(--space-6); }
  .team-grid { grid-template-columns: 1fr; gap: var(--space-7); }
  .hero__lead { max-width: 100%; }
}
@media (max-width: 760px) {
  .hero__gizmo, .hero__caption { display: none; }
  .hero { min-height: clamp(520px, 78vh, 640px); }
  .hero__scrim { background: linear-gradient(180deg, rgba(13,15,18,.55) 0%, rgba(13,15,18,.30) 40%, rgba(13,15,18,.78) 100%); }
}
@media (max-width: 640px) {
  .nav__links, .nav .btn { display: none; }
  .nav-toggle {
    display: inline-flex; align-items: center; justify-content: center;
    width: 42px; height: 42px; background: none; border: 1px solid rgba(237,239,242,.4);
    border-radius: var(--radius-sm); cursor: pointer; color: var(--on-ink);
  }
  .site-header.is-scrolled .nav-toggle { border-color: var(--line); color: var(--ink); }
  .nav.is-open .nav__links {
    display: flex; flex-direction: column; gap: var(--space-4);
    position: absolute; top: 68px; left: 0; right: 0;
    background: var(--paper-raised); border-bottom: 1px solid var(--line);
    padding: var(--space-5) var(--gutter);
  }
  .nav.is-open .nav__links a { color: var(--ink-2); }
  .nav.is-open .nav__links a::after { display: none; }
  .grid--3, .grid--2 { grid-template-columns: 1fr; }
  .member { grid-template-columns: 56px 1fr; gap: var(--space-4); }
  .member__mono { width: 56px; height: 56px; font-size: 1.3rem; }
  .section { padding-block: var(--space-9); }
}