/* ============================================================
   BOSCRAE LIMITED — "Instrument" design system
   Shared by index.html and privacy.html
   ============================================================ */

:root {
  /* — Marine ink + brass palette — */
  --ink:        #0B1417;
  --ink-2:      #0E1C21;
  --surface:    #13262C;
  --surface-2:  #163138;
  --brass:      #E0A45C;
  --brass-deep: #C98A45;
  --paper:      #ECE7DA;
  --paper-2:    #B9C0BE;
  --paper-mute: #8A938F;
  --line:       rgba(236, 231, 218, 0.10);
  --line-2:     rgba(236, 231, 218, 0.18);
  --line-3:     rgba(236, 231, 218, 0.30);

  /* — Type — */
  --serif: "Instrument Serif", "Times New Roman", serif;
  --sans:  "Inter Tight", -apple-system, BlinkMacSystemFont, sans-serif;
  --mono:  "JetBrains Mono", ui-monospace, monospace;

  /* — Motion — */
  --ease: cubic-bezier(0.22, 0.7, 0.18, 1);
  --maxw: 1240px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-weight: 300;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  background-image:
    radial-gradient(ellipse 72% 48% at 50% -12%, rgba(224, 164, 92, 0.06), transparent 60%),
    radial-gradient(ellipse 60% 45% at 88% 112%, rgba(95, 165, 175, 0.07), transparent 62%);
  background-attachment: fixed;
}

::selection { background: rgba(224, 164, 92, 0.28); color: var(--paper); }

a { color: inherit; }

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--brass);
  outline-offset: 3px;
  border-radius: 2px;
}

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 36px;
}

/* ============ MEASUREMENT RULE (signature structural device) ============ */
.measure {
  position: relative;
  height: 12px;
  width: 100%;
  transform-origin: left center;
}
.measure::before {                 /* baseline + minor ticks */
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line-2), var(--line-2)),
    repeating-linear-gradient(90deg, var(--line-2) 0 1px, transparent 1px 13px);
  background-repeat: no-repeat, repeat-x;
  background-size: 100% 1px, 100% 8px;
  background-position: left top, left top;
}
.measure::after {                  /* major brass ticks */
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 12px;
  background-image: repeating-linear-gradient(90deg, var(--brass) 0 1px, transparent 1px 78px);
  background-repeat: repeat-x;
  opacity: 0.85;
}

/* ============ EYEBROW (replaces decorative 01/02/03) ============ */
.eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--paper-mute);
  margin-bottom: 30px;
}
.eyebrow::before {                 /* mini brass scale segment */
  content: "";
  width: 30px;
  height: 7px;
  flex: none;
  background-image:
    linear-gradient(var(--brass), var(--brass)),
    repeating-linear-gradient(90deg, var(--brass) 0 1px, transparent 1px 7px);
  background-repeat: no-repeat, repeat-x;
  background-size: 100% 1px, 100% 7px;
  background-position: left bottom, left bottom;
}
.eyebrow .place { color: var(--brass); }

/* ============ TYPE ============ */
h1, h2, h3 { font-family: var(--serif); font-weight: 400; }

h1 {
  font-size: clamp(46px, 8.2vw, 116px);
  line-height: 0.98;
  letter-spacing: -0.018em;
}
h2 {
  font-size: clamp(34px, 5vw, 62px);
  line-height: 1.04;
  letter-spacing: -0.018em;
  max-width: 18ch;
  margin-bottom: 44px;
}
em {
  font-style: italic;
  color: var(--brass);
}

/* ============ NAV ============ */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  backdrop-filter: blur(18px) saturate(1.2);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  background: rgba(11, 20, 23, 0.62);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 17px 36px;
  max-width: var(--maxw);
  margin: 0 auto;
}
.logo {
  font-family: var(--serif);
  font-size: 23px;
  letter-spacing: 0.10em;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--paper);
}
.logo-mark {                       /* compass glyph */
  width: 22px; height: 22px;
  flex: none;
  border: 1px solid var(--line-3);
  border-radius: 50%;
  position: relative;
}
.logo-mark::before {               /* bearing needle */
  content: "";
  position: absolute;
  left: 50%; top: 3px; bottom: 50%;
  width: 1.5px;
  transform: translateX(-50%);
  background: var(--brass);
}
.logo-mark::after {                /* hub */
  content: "";
  position: absolute;
  left: 50%; top: 50%;
  width: 4px; height: 4px;
  transform: translate(-50%, -50%);
  background: var(--brass);
  border-radius: 50%;
}
.nav-links {
  display: flex;
  gap: 34px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}
.nav-links a {
  color: var(--paper-2);
  text-decoration: none;
  transition: color 0.22s var(--ease);
}
.nav-links a:hover { color: var(--paper); }
.nav-cta {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink);
  background: var(--brass);
  padding: 10px 18px;
  border-radius: 100px;
  text-decoration: none;
  transition: transform 0.22s var(--ease), background 0.22s var(--ease), box-shadow 0.22s var(--ease);
}
.nav-cta:hover {
  transform: translateY(-1px);
  background: #ecb572;
  box-shadow: 0 10px 30px rgba(224, 164, 92, 0.22);
}
.nav-back {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--paper-2);
  text-decoration: none;
  transition: color 0.22s var(--ease);
}
.nav-back:hover { color: var(--brass); }

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 150px 0 70px;
}
.hero .container { position: relative; }

.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--paper-mute);
  margin-bottom: 42px;
}
.hero-eyebrow .coord { color: var(--brass); }
.hero-eyebrow .seg { width: 46px; height: 1px; background: var(--line-2); }

h1 { max-width: 16ch; position: relative; z-index: 2; }

.hero-sub {
  max-width: 50ch;
  font-size: 18px;
  line-height: 1.62;
  color: var(--paper-2);
  margin: 38px 0 46px;
  position: relative;
  z-index: 2;
}
.hero-foot {
  display: flex;
  align-items: center;
  gap: 22px;
  position: relative;
  z-index: 2;
}
.hero-foot .label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--paper-mute);
  white-space: nowrap;
}
.hero-foot .measure { max-width: 360px; }

/* — Live instrument — */
.instrument {
  position: absolute;
  right: max(24px, calc((100% - var(--maxw)) / 2 + 28px));
  top: 50%;
  transform: translateY(-50%);
  width: min(33vw, 392px);
  aspect-ratio: 1;
  z-index: 1;
  pointer-events: none;
}
.instrument svg { width: 100%; height: 100%; overflow: visible; }
.inst-ring { fill: none; stroke: var(--line-2); }
.inst-ring.faint { stroke: var(--line); }
.inst-ring.brass { stroke: rgba(224, 164, 92, 0.34); }
.inst-tick { stroke: var(--line-2); }
.inst-tick.card { stroke: var(--line-3); }
.inst-cardinal { fill: var(--paper-mute); font-family: var(--mono); font-size: 9px; letter-spacing: 0.1em; }
.inst-pointer { stroke: var(--brass); stroke-width: 1.5; }
.inst-hub { fill: var(--brass); }
.inst-hub-ring { fill: none; stroke: var(--brass); opacity: 0.5; }

.inst-readout {
  position: absolute;
  left: 50%;
  bottom: -7%;
  transform: translateX(-50%);
  display: flex;
  gap: 18px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--paper-mute);
  white-space: nowrap;
}
.inst-readout b { color: var(--brass); font-weight: 500; }

/* ============ SECTION SHELL ============ */
section.block {
  position: relative;
  padding: 120px 0;
}
section.block.tight { padding-top: 56px; }

/* ============ ABOUT ============ */
.about-text { max-width: 64ch; }
.about-text p {
  font-size: 18px;
  line-height: 1.74;
  color: var(--paper-2);
  margin-bottom: 22px;
}
.about-text p:last-child { margin-bottom: 0; }
.about-text strong { color: var(--paper); font-weight: 400; }

/* ============ SERVICES ============ */
.services {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.service {
  padding: 50px 44px 46px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  position: relative;
  transition: background 0.3s var(--ease);
}
.service::before {                 /* brass index rule, draws on hover */
  content: "";
  position: absolute;
  left: 0; top: 0;
  width: 0; height: 2px;
  background: var(--brass);
  transition: width 0.4s var(--ease);
}
.service:hover { background: var(--ink-2); }
.service:hover::before { width: 64px; }
.service-mark {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brass);
  margin-bottom: 26px;
}
.service-mark .dot { width: 5px; height: 5px; border-radius: 50%; background: var(--brass); flex: none; }
.service-title {
  font-family: var(--serif);
  font-size: 32px;
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}
.service-desc {
  color: var(--paper-2);
  font-size: 15.5px;
  line-height: 1.66;
  margin-bottom: 28px;
  max-width: 42ch;
}
.service-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.service-tag {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--paper-mute);
  padding: 6px 11px;
  border: 1px solid var(--line-2);
  border-radius: 100px;
  transition: border-color 0.22s var(--ease), color 0.22s var(--ease);
}
.service:hover .service-tag { border-color: var(--line-3); color: var(--paper-2); }

/* ============ CONTACT ============ */
.contact-block {
  background:
    linear-gradient(180deg, rgba(224, 164, 92, 0.04), transparent 40%),
    var(--surface);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 76px 60px;
  position: relative;
  overflow: hidden;
}
.contact-block::before {           /* brass top hairline */
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--brass), transparent);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
  position: relative;
}
.contact-heading {
  font-family: var(--serif);
  font-size: clamp(34px, 4.6vw, 58px);
  line-height: 1.04;
  letter-spacing: -0.018em;
}
.contact-after {
  margin-top: 26px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper-2);
  max-width: 34ch;
}
.contact-details { display: flex; flex-direction: column; }
.contact-row {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}
.contact-row:first-child { padding-top: 0; }
.contact-row:last-child { border-bottom: none; padding-bottom: 0; }
.contact-row-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--paper-mute);
  padding-top: 4px;
}
.contact-row-value { font-size: 15px; color: var(--paper); line-height: 1.62; }
.contact-row-value a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--line-3);
  padding-bottom: 2px;
  transition: border-color 0.22s var(--ease), color 0.22s var(--ease);
}
.contact-row-value a:hover { border-color: var(--brass); color: var(--brass); }

/* ============ FOOTER ============ */
footer {
  border-top: 1px solid var(--line);
  padding: 46px 0 42px;
  margin-top: 40px;
}
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 36px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 22px;
}
.footer-text,
.footer-links a {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--paper-mute);
}
.footer-links { display: flex; gap: 26px; }
.footer-links a { text-decoration: none; transition: color 0.22s var(--ease); }
.footer-links a:hover { color: var(--brass); }

/* ============ SCROLL REVEAL ============ */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }

/* ============ LOAD CHOREOGRAPHY (calibration) ============ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes ruleIn {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}
.anim-up { animation: fadeUp 0.9s var(--ease) both; }
.hero-eyebrow.anim-up { animation-delay: 0.1s; }
h1.anim-up           { animation-delay: 0.22s; }
.hero-sub.anim-up    { animation-delay: 0.4s; }
.hero-foot.anim-up   { animation-delay: 0.55s; }
.hero-foot .measure  { animation: ruleIn 1s var(--ease) 0.7s both; }
.instrument          { animation: fadeUp 1.2s var(--ease) 0.3s both; }

/* ============ PRIVACY DOCUMENT ============ */
.doc-narrow { max-width: 880px; }

.doc-header {
  padding: 168px 0 64px;
  border-bottom: 1px solid var(--line);
}
.doc-title {
  font-family: var(--serif);
  font-size: clamp(44px, 6.4vw, 78px);
  line-height: 1.0;
  letter-spacing: -0.02em;
  margin-bottom: 34px;
}
.doc-meta {
  display: flex;
  gap: 46px;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--paper-mute);
}
.doc-meta strong { color: var(--brass); font-weight: 500; margin-left: 9px; }

.doc-body { padding: 64px 0 96px; }
.doc-intro {
  font-size: 19px;
  line-height: 1.72;
  color: var(--paper-2);
  margin-bottom: 60px;
  max-width: 66ch;
}
.doc-intro strong { color: var(--paper); font-weight: 400; }

section.dpa { margin-bottom: 56px; }
section.dpa:last-of-type { margin-bottom: 0; }
.dpa-num {
  display: block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--brass);
  margin-bottom: 14px;
}
h2.dpa-title {
  font-size: clamp(24px, 3vw, 33px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
  max-width: none;
}
.dpa p {
  font-size: 16px;
  line-height: 1.76;
  color: var(--paper-2);
  margin-bottom: 16px;
}
.dpa p:last-child { margin-bottom: 0; }
.dpa p strong, .dpa li strong { color: var(--paper); font-weight: 500; }
.dpa ul { list-style: none; margin: 18px 0; }
.dpa ul li {
  font-size: 16px;
  line-height: 1.7;
  color: var(--paper-2);
  padding: 8px 0 8px 26px;
  position: relative;
}
.dpa ul li::before {
  content: "";
  position: absolute;
  left: 0; top: 16px;
  width: 12px; height: 1px;
  background: var(--brass);
}

.principles {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  margin: 26px 0;
}
.principle {
  padding: 26px 26px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.principle-name {
  font-family: var(--serif);
  font-size: 19px;
  color: var(--paper);
  margin-bottom: 9px;
}
.principle-desc { font-size: 14px; color: var(--paper-2); line-height: 1.62; }

.contact-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 38px 34px;
  margin-top: 22px;
  position: relative;
  overflow: hidden;
}
.contact-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--brass), transparent);
}
.contact-card-row {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 24px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}
.contact-card-row:first-child { padding-top: 0; }
.contact-card-row:last-child { border-bottom: none; padding-bottom: 0; }
.contact-card-key {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--paper-mute);
  padding-top: 2px;
}
.contact-card-val { font-size: 15px; color: var(--paper); line-height: 1.6; }
.contact-card-val a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--line-3);
  padding-bottom: 1px;
  transition: border-color 0.22s var(--ease), color 0.22s var(--ease);
}
.contact-card-val a:hover { border-color: var(--brass); color: var(--brass); }

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .instrument { width: min(46vw, 380px); right: -30px; opacity: 0.92; }
  h1 { max-width: 14ch; }
}
@media (max-width: 768px) {
  .container { padding: 0 22px; }
  .nav-inner { padding: 15px 22px; }
  .nav-links { display: none; }
  .footer-inner { padding: 0 22px; }

  .hero { padding: 124px 0 60px; min-height: auto; }
  .instrument {
    position: static;
    transform: none;
    width: 168px;
    margin: 6px 0 20px auto;
    opacity: 0.92;
  }
  .inst-readout { display: none; }
  .hero-sub { font-size: 16.5px; }
  .hero-foot { flex-direction: column; align-items: flex-start; gap: 16px; }
  .hero-foot .measure { max-width: 100%; width: 100%; }

  section.block { padding: 84px 0; }
  .services { grid-template-columns: 1fr; }
  .service { padding: 40px 26px; }

  .contact-block { padding: 48px 28px; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .contact-row { grid-template-columns: 1fr; gap: 6px; }

  .doc-header { padding: 128px 0 52px; }
  .doc-meta { gap: 28px; }
  .principles { grid-template-columns: 1fr; }
  .contact-card-row { grid-template-columns: 1fr; gap: 6px; }
}

/* ============ REDUCED MOTION ============ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1 !important; transform: none !important; }
  .hero-foot .measure { transform: none !important; }
}