/* ─── Tokens ─── */
:root {
  /* Dark end of the shared GripDoctor palette */
  --bg:        #0a0d13;   /* ink-deep: the tone GripDoctor uses for PrecisionLab */
  --bg-s:      #10141c;   /* ink: GripDoctor's standard dark section */
  --bg-c:      #1b1e24;   /* ink-soft: cards */
  --bg-c2:     #23272e;   /* card hover */
  --border:    #2a2f3a;   /* line-on-ink */
  --accent:    #6fb2ea;   /* blue-light: GripDoctor's accent on dark */
  --accent-d:  #1d6fbd;   /* blue */
  --amber:     #cb7920;
  --amber-l:   #e8962e;
  --green:     #2db57a;
  --text:      #ffffff;
  --text-m:    #aab0bd;   /* muted-on-ink */
  --text-d:    #808794;
  --ff-h:      'Barlow Condensed', sans-serif;
  --ff-b:      'IBM Plex Sans', -apple-system, 'Segoe UI', sans-serif;
  --ff-m:      'IBM Plex Mono', 'SF Mono', monospace;
  --r:         6px;
  --r-l:       10px;

  /* GripDoctor parent-site tokens, used by the top bar only */
  --paper:     #ffffff;
  --ink:       #10141c;
  --gd-muted:  #5b6270;
  --gd-line:   #dfe2e7;
  --gd-blue:   #1d6fbd;
  --gd-blue-d: #134f89;
  --ff-gd:     'IBM Plex Sans', -apple-system, 'Segoe UI', sans-serif;
  --ff-serif:  'Source Serif 4', Georgia, serif;
}

/* ─── Reset & Base ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--ff-b);
  background: var(--bg);
  color: var(--text);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ─── Layout ─── */
.wrap     { max-width: 1180px; margin: 0 auto; padding-inline: 24px; }
.wrap-n   { max-width: 900px;  margin: 0 auto; padding-inline: 24px; }

/* ─── Nav: light GripDoctor parent bar ─── */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--paper) 94%, transparent);
  backdrop-filter: saturate(180%) blur(8px);
  -webkit-backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--gd-line);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
  max-width: 1220px; margin: 0 auto;
  padding: 12px 24px 10px;
  position: relative;
}
.nav-parent {
  display: flex; align-items: center; gap: 9px;
  flex-shrink: 0;
}
.nav-parent-mark { width: 22px; height: 22px; }
.nav-parent span {
  font-family: var(--ff-gd);
  font-size: .82rem; font-weight: 500;
  color: var(--gd-muted);
  white-space: nowrap;
}
.nav-parent:hover span { color: var(--gd-blue-d); }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-link {
  font-family: var(--ff-gd);
  font-size: .875rem; color: var(--gd-muted);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color .15s, border-color .15s;
}
.nav-link:hover { color: var(--ink); border-color: var(--gd-blue); }

/* PrecisionLab title row */
.nav-title {
  display: flex; align-items: center; justify-content: center; gap: 11px;
  padding: 0 24px 13px;
}
.nav-title-mark { width: 38px; height: 38px; }
.nav-title-text {
  font-family: var(--ff-serif);
  font-size: 1.6rem; font-weight: 700;
  color: var(--ink); letter-spacing: -.01em;
  line-height: 1;
}
.nav-title-text em { font-style: normal; color: var(--gd-blue); }

/* Hamburger */
.nav-toggle {
  display: none; flex-direction: column; gap: 5px; cursor: pointer;
  padding: 8px 4px; background: none; border: none;
}
.nav-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--ink); border-radius: 2px;
  transition: transform .2s, opacity .2s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 760px) {
  .nav-toggle { display: flex; }
  .nav-links {
    display: none;
    position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--gd-line);
    padding: 6px 24px 14px;
    z-index: 5;
  }
  .nav-links.open { display: flex; }
  .nav-link {
    padding: 12px 0; border-bottom: 1px solid var(--gd-line);
    font-size: 1rem;
  }
  .nav-link:last-child { border-bottom: none; }
  .nav-title { padding-bottom: 11px; }
  .nav-title-text { font-size: 1.35rem; }
  .nav-title-mark { width: 32px; height: 32px; }
}

/* ─── Hero: level 2, standalone artwork ─── */
.hero-image-wrap {
  width: 100%;
  background: var(--bg);
  line-height: 0;
}
.hero-image {
  width: 100%;
  height: auto;
  display: block;
}

/* ─── Hero: level 3, text ─── */
.hero-text {
  background: var(--bg);
  padding-block: 56px 48px;
}
.hero-lede {
  font-size: clamp(1.02rem, 1.7vw, 1.22rem);
  color: var(--text-m);
  line-height: 1.7;
  text-align: center;
  text-wrap: pretty;
}

/* ─── Section base ─── */
section { padding-block: 80px; }
.s-eyebrow {
  font-family: var(--ff-m); font-size: .68rem;
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 14px;
}
.s-h2 {
  font-family: var(--ff-h);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700; line-height: 1.1;
  text-wrap: balance;
}
.s-h2 em { font-style: normal; color: var(--accent); }
.s-lead {
  font-size: 1.05rem; color: var(--text-m);
  max-width: 58ch; margin-top: 14px; line-height: 1.7;
}
.s-divider { border: none; border-top: 1px solid var(--border); margin: 0; }

/* ─── Problem block (inside Analysis) ─── */
.problem-block {
  margin-top: 34px;
  padding-top: 26px;
  border-top: 1px solid var(--border);
}
.problem-label {
  font-family: var(--ff-m); font-size: .68rem;
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--amber-l); margin-bottom: 12px;
}
.problem-body {
  font-size: .9rem; color: var(--text-m); line-height: 1.65;
}
.problem-body + .problem-body { margin-top: 14px; }
.problem-quote {
  font-family: var(--ff-h);
  font-size: 1.45rem; font-weight: 600; line-height: 1.25;
  color: var(--text);
  margin: 18px 0;
  padding: 16px 20px;
  background: var(--bg-c);
  border-left: 3px solid var(--amber-l);
  border-radius: 0 var(--r) var(--r) 0;
  text-wrap: balance;
}
.problem-quote em { font-style: normal; color: var(--amber-l); }

/* ─── Sensor Stack ─── */
.sensors-section { background: var(--bg-s); }
.sensors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2px; margin-top: 48px;
  border: 1px solid var(--border); border-radius: var(--r-l);
  overflow: hidden;
}
.sensor-card {
  background: var(--bg-c);
  padding: 28px 28px 24px;
  display: flex; flex-direction: column; gap: 10px;
  transition: background .2s;
}
.sensor-card:hover { background: var(--bg-c2); }
.sensor-top {
  display: flex; align-items: flex-start;
  justify-content: space-between; gap: 12px;
}
.sensor-name {
  font-family: var(--ff-h); font-size: 1.2rem; font-weight: 700;
  line-height: 1.15;
}
.badge {
  font-family: var(--ff-m); font-size: .6rem;
  letter-spacing: .1em; text-transform: uppercase;
  padding: 3px 8px; border-radius: 20px;
  white-space: nowrap; flex-shrink: 0; margin-top: 2px;
}
.badge-live {
  background: color-mix(in srgb, var(--green) 15%, transparent);
  color: var(--green);
  border: 1px solid color-mix(in srgb, var(--green) 30%, transparent);
}
.badge-dev {
  background: color-mix(in srgb, var(--amber) 12%, transparent);
  color: var(--amber-l);
  border: 1px solid color-mix(in srgb, var(--amber) 28%, transparent);
}
.sensor-desc { font-size: .875rem; color: var(--text-m); line-height: 1.55; }
.sensor-detail {
  font-family: var(--ff-m); font-size: .72rem; color: var(--text-d);
  margin-top: auto; padding-top: 8px;
}
.scene-wrap {
  border-radius: var(--r-l); overflow: hidden;
  border: 1px solid var(--border); margin-top: 48px;
  box-shadow: 0 20px 60px color-mix(in srgb, #000 40%, transparent);
}

/* ─── Lightbox trigger (matches the GripDoctor site) ─── */
.lightbox-trigger {
  display: block; width: 100%;
  border: none; padding: 0; margin: 0;
  background: none; cursor: zoom-in;
  overflow: hidden;
  transition: filter .2s;
}
.lightbox-trigger img { width: 100%; }
.lightbox-trigger:hover { filter: brightness(1.08); }
.lightbox-trigger:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ─── Image modal ─── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(8, 10, 14, .92);
  display: none;
  align-items: center; justify-content: center;
  z-index: 200;
  padding: 32px;
}
.modal-overlay.open { display: flex; }
.modal-close {
  position: absolute; top: 20px; right: 26px;
  background: none; border: none;
  color: #fff; font-size: 30px; line-height: 1;
  cursor: pointer; padding: 8px;
}
.modal-close:hover { color: var(--accent); }
.modal-figure {
  display: flex; flex-direction: column; align-items: center;
  gap: 12px; max-width: 95vw;
}
.modal-content-img {
  max-width: 95vw; max-height: 84vh;
  display: block; cursor: zoom-out;
}
.modal-content-img img {
  width: auto; height: auto;
  max-width: 95vw; max-height: 84vh;
  object-fit: contain;
}
.modal-caption {
  font-family: var(--ff-m); font-size: .68rem;
  color: var(--text-d); letter-spacing: .05em;
  text-align: center; max-width: 70ch;
}
@media (max-width: 700px) {
  .modal-overlay { padding: 16px; }
  .modal-content-img, .modal-content-img img { max-width: 100%; max-height: 78vh; }
  .modal-caption { font-size: .62rem; }
}

/* ─── Concept caption ─── */
.concept-caption {
  font-family: var(--ff-m); font-size: .66rem;
  color: var(--text-d); letter-spacing: .05em;
  text-align: center;
  padding: 10px 16px;
  border-top: 1px solid var(--border);
  background: var(--bg-s);
  border-radius: 0 0 var(--r-l) var(--r-l);
}

/* ─── Coach Report ─── */
.coach-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px; align-items: start;
}
@media (max-width: 800px) {
  .coach-section { grid-template-columns: 1fr; }
}
.coach-img-col { display: flex; flex-direction: column; }
.coach-img-wrap {
  border-radius: var(--r-l) var(--r-l) 0 0; overflow: hidden;
  border: 1px solid var(--border); border-bottom: none;
  box-shadow: 0 24px 64px color-mix(in srgb, #000 40%, transparent);
}
.coach-img-col .concept-caption {
  border: 1px solid var(--border);
  border-radius: 0 0 var(--r-l) var(--r-l);
  box-shadow: 0 24px 64px color-mix(in srgb, #000 40%, transparent);
}
.coach-text .s-h2 { margin-top: 12px; }
.insight-list { list-style: none; margin-top: 28px; display: flex; flex-direction: column; gap: 14px; }
.insight-item { display: flex; gap: 14px; align-items: flex-start; }
.insight-icon {
  width: 32px; height: 32px; flex-shrink: 0;
  border-radius: 8px;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
  display: grid; place-items: center;
  font-size: .85rem; color: var(--accent);
}
.insight-body { font-size: .9rem; color: var(--text-m); line-height: 1.55; }
.insight-body strong { color: var(--text); }

/* ─── Software ─── */
.software-section { background: var(--bg-s); }
.software-wrap { margin-top: 40px; }
.software-img-wrap {
  border-radius: var(--r-l) var(--r-l) 0 0; overflow: hidden;
  border: 1px solid var(--border); border-bottom: none;
  box-shadow: 0 32px 80px color-mix(in srgb, #000 50%, transparent);
}
.software-wrap .concept-caption {
  margin-bottom: 24px;
  border: 1px solid var(--border); border-top: none;
  box-shadow: 0 32px 80px color-mix(in srgb, #000 50%, transparent);
  border-radius: 0 0 var(--r-l) var(--r-l);
}
.software-caption {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.cap-item {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: .82rem; color: var(--text-m); line-height: 1.45;
}
.cap-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; margin-top: 5px; }

/* ─── Status ─── */
.status-section { background: var(--bg-s); }
.status-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px; margin-top: 40px;
}
.status-card {
  background: var(--bg-c);
  border: 1px solid var(--border);
  border-radius: var(--r-l);
  padding: 22px 22px 18px;
}
.status-card.live { border-color: color-mix(in srgb, var(--green) 35%, transparent); }
.status-card.dev  { border-color: color-mix(in srgb, var(--amber) 25%, transparent); }
.status-label {
  font-family: var(--ff-m); font-size: .6rem;
  letter-spacing: .12em; text-transform: uppercase;
  margin-bottom: 10px;
}
.status-label.live { color: var(--green); }
.status-label.dev  { color: var(--amber-l); }
.status-name {
  font-family: var(--ff-h); font-size: 1.15rem; font-weight: 700;
  line-height: 1.2; margin-bottom: 8px;
}
.status-desc { font-size: .83rem; color: var(--text-m); line-height: 1.5; }

/* ─── Get Involved ─── */
.involve-site {
  display: inline-block;
  font-family: var(--ff-m);
  font-size: clamp(1.1rem, 2.6vw, 1.7rem);
  color: var(--accent);
  letter-spacing: .02em;
  margin-top: 26px;
  border-bottom: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  padding-bottom: 3px;
  transition: color .2s, border-color .2s;
}
.involve-site:hover { color: var(--text); border-color: var(--accent); }

.involve-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 24px; margin-top: 48px;
}
@media (max-width: 640px) {
  .involve-grid { grid-template-columns: 1fr; }
}
.involve-card {
  background: var(--bg-c); border-radius: var(--r-l);
  border: 1px solid var(--border);
  padding: 32px;
  display: flex; flex-direction: column; gap: 14px;
}
.involve-card.primary {
  border-color: color-mix(in srgb, var(--accent) 40%, transparent);
  background: color-mix(in srgb, var(--accent) 5%, var(--bg-c));
}
.involve-title { font-family: var(--ff-h); font-size: 1.4rem; font-weight: 700; }
.involve-body { font-size: .9rem; color: var(--text-m); line-height: 1.6; }
.involve-link {
  font-family: var(--ff-m); font-size: .8rem;
  color: var(--accent); letter-spacing: .04em;
  display: flex; align-items: center; gap: 6px;
  transition: gap .2s; margin-top: auto;
}
.involve-link:hover { gap: 10px; }

/* ─── Footer ─── */
footer {
  background: var(--bg-s); border-top: 1px solid var(--border);
  padding-block: 40px 32px;
}
.footer-inner {
  display: flex; flex-wrap: wrap;
  gap: 24px; align-items: flex-start;
  justify-content: space-between;
}
.footer-left { flex-shrink: 0; }
.footer-brand { font-family: var(--ff-h); font-size: 1.2rem; font-weight: 700; }
.footer-brand span { color: var(--accent); }
.footer-sub { font-size: .78rem; color: var(--text-m); margin-top: 4px; line-height: 1.5; }
.footer-right { display: flex; flex-direction: column; gap: 10px; align-items: flex-end; }
@media (max-width: 640px) { .footer-right { align-items: flex-start; } }
.footer-links {
  display: flex; gap: 18px; flex-wrap: wrap;
  font-size: .82rem; color: var(--text-m);
  justify-content: flex-end;
}
@media (max-width: 640px) { .footer-links { justify-content: flex-start; } }
.footer-links a:hover { color: var(--text); }
.footer-contact {
  display: flex; gap: 16px; flex-wrap: wrap;
  font-size: .8rem; color: var(--text-m);
  justify-content: flex-end;
}
@media (max-width: 640px) { .footer-contact { justify-content: flex-start; } }
.footer-contact a:hover { color: var(--text); }
.footer-social {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--text-m);
}
.footer-social:hover { color: var(--text); }
.fb-icon { width: 15px; height: 15px; flex-shrink: 0; display: block; }
.footer-legal {
  width: 100%; padding-top: 24px; margin-top: 16px;
  border-top: 1px solid var(--border);
  font-family: var(--ff-m); font-size: .68rem; color: var(--text-d);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
}

/* ─── Reduced motion ─── */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}

/* ─── Development-status note ─── */
.dev-note {
  display: flex; align-items: flex-start; gap: 12px;
  margin-top: 22px; padding: 16px 18px;
  background: var(--bg-c);
  border: 1px solid color-mix(in srgb, var(--amber) 22%, transparent);
  border-radius: var(--r-l);
}
.dev-note .badge { margin-top: 3px; }
.dev-note p { font-size: .86rem; color: var(--text-m); line-height: 1.6; }
@media (max-width: 560px) {
  .dev-note { flex-direction: column; gap: 10px; }
}